CN115671816A - Filter press central filter plate device based on large capacity, use method and application thereof - Google Patents

Abstract

A large-capacity filter press central filter plate device, method of use and application thereof, including a plate frame (1) used as a support, and an elastic frame member arranged on the edge of the end face of the plate frame (1), Through the plate frame (1), the support connection to the elastic frame parts is realized, and through the elastic frame parts, the cavity storing the filter press medium body is realized to expand and shrink to the periphery, and the filter residue of the filter press medium body is flattened The expansion process uses the elastic energy storage of the elastic frame parts to separate the filter residue from the filter cloth, which solves the problem of compacting the filter residue after the compression of the filter cavity through the mutual accommodation and movement of the two parts, and the compaction of the filter residue and the filter cloth. The technical problem of self-weight separation of the cloth, thus improving the working efficiency of the filter press.

Description

Large-capacity filter press central filter plate device and method of use and its application

technical field

The invention relates to a filter plate device of a filter press, a method for using it and its application, in particular to a central filter plate device for a filter press based on a large capacity, a method for using it and its application.

Background technique

The filter press uses a special filter medium to exert a certain pressure on the object, which is a mechanical device that makes the liquid dialysis out. It is a commonly used solid-liquid separation device and is still widely used in chemical industry, pharmaceuticals, metallurgy, dyes, In industries such as food, brewing, ceramics and environmental protection, the filter plate device is used to realize the dialysis treatment of liquid, so the filter plate device of the filter press is an important part of the filter press. In the existing filter plate device of the filter press, It is also a piston-type filter plate device, that is, the two parts are mutually accommodated and moved to realize the reduction of the filter chamber. The viscosity between the walls and the edge rigidity of the filter press chamber prevent the small particles of the filter press medium from being completely separated from the inner wall of the filter press chamber, thus affecting the working efficiency of the filter press.

In the present invention, the filter residue of the filter medium body is flattened and expanded, and then the filter residue and the filter cloth are separated by the elastic energy storage of the elastic frame part, and the pressure filter cavity is reduced by the mutual accommodation and movement of the two components. After the treatment, the technical problems of compacting the filter residue and separating the compacted filter residue and the filter cloth by their own weight have been effectively explored and studied at the technical level.

Based on the technical disclosure document that the applicant provided on September 9, 2022 to solve practical technical problems in the course of work, similar patent documents obtained through retrieval, and existing technical problems, technical features and technical effects in the background technology, it is made The application technical solution of the present invention.

Contents of the invention

The object of the present invention is a central filter plate device based on a large-capacity filter press,

The object of the present invention is a method for using a central filter plate device of a filter press based on a large capacity,

The object of the present invention is an application based on a large-capacity filter press center filter plate device and a use method.

In order to overcome the above-mentioned technical shortcomings, the object of the present invention is to provide a large-capacity filter press central filter plate device and use method and its application, thus improving the working efficiency of the filter press.

In order to achieve the above object, the technical solution adopted by the present invention is: a central filter plate device based on a large-capacity filter press, which includes a plate frame used as a support body, and an elastic frame part arranged on the edge of the end face of the plate frame .

Due to the design of the plate frame and the elastic frame part, the support connection to the elastic frame part is realized through the plate frame, and the expansion and contraction of the cavity storing the filter press medium body to the periphery are realized through the elastic frame part, and the compression pressure is realized. The filter residue of the filter medium is flattened and expanded, and then the elastic energy storage of the elastic frame part separates the filter residue from the filter cloth, which solves the problem of compacting the filter residue after the two parts are accommodated and moved together. 1. The technical problem of self-weight separation of the compressed filter residue and the filter cloth, thus improving the working efficiency of the filter press.

The invention designs that the plate frame and the elastic frame part are connected to each other in such a way that the filter residue of the filter press medium body is flattened and expanded, and then the elastic energy storage of the elastic frame part separates the filter residue from the filter cloth.

According to the design of the present invention, the elastic frame part is connected with the plate frame according to the way of expanding and shrinking the cavity storing the filter press medium body to the periphery.

The present invention designs that the elastic frame part is set as the first elastic frame or the second elastic frame.

According to the design of the present invention, the first elastic frame and the second elastic frame are provided with a butt joint portion and a deformation portion, and the butt joint portion of the first elastic frame is set as an annular edge body I, and the deformation portion of the first elastic frame is set as a frame portion I The butt joint with the receiving tank body and the second elastic frame is configured as an annular edge body II, and the deformed portion of the second elastic frame is configured as a frame portion II and an annular edge body III.

The technical effects of the above five technical solutions are: through the elastic deformation of the elastic frame parts, the treatment of the filter press medium is realized, and the solid-liquid separation of the filtrate and filter residue is realized.

According to the design of the present invention, a first accessory device is also included and the first accessory device is arranged between the plate frame and the elastic frame part, and the first accessory device is configured to include a pressing plate and a first connecting screw.

According to the design of the present invention, a second accessory device is also included and the second accessory device is arranged on the plate frame, and the second accessory device is configured to include a first chuck, a second chuck, a second connecting screw and an elastic block.

According to the design of the present invention, a third accessory device is also included and the third accessory device is arranged on the plate frame, and the third accessory device is arranged as a discharge pipe.

According to the design of the present invention, a fourth accessory device is also included and the fourth accessory device is arranged on the plate frame, and the fourth accessory device is arranged as a hanging ear.

The technical effects of the above four technical solutions are: the integrated installation of other components is realized, and the technical effects of the present invention are expanded.

According to the design of the present invention, a first elastic frame, a second elastic frame, a first chuck, a second chuck and a second connecting screw are respectively arranged on the plate frame, and the first elastic frame and the second elastic frame and the plate frame A pressing plate is arranged between and a first connecting screw is arranged between the pressing plate and the frame, a second connecting screw is arranged between the first chuck and the second chuck and the frame, and a connecting screw is arranged between the first chuck and the second chuck. Elastic blocks are respectively arranged on the chucks.

The technical effects of the above technical solutions are: through the plate frame, the first elastic frame, the second elastic frame, the pressing plate, the first connecting screw, the first chuck, the second chuck, the second connecting screw and the elastic block, the present invention is formed. The basic technical solution of the invention solves the technical problem of the present invention.

According to the design of the present invention, the plate frame is set to include a box part and a filter bean part, and a middle through-hole body and an edge through-hole body are arranged in the middle part of the box part, and a first installation hole body is arranged in the lower part of the peripheral side of the box part In addition, an outer annular groove body and an inner annular groove body are respectively provided on the edge of the end face of the box part, and a second mounting hole body is provided on the peripheral side of the box part, and the end face part of the box part is set to be connected with the bean filter part, located at One of the outer annular grooves on the box part is set to be connected in contact with the first elastic frame and the other one of the outer annular grooves on the box part is set to be connected in contact with the second elastic frame, and the peripheral side of the box part It is set to be coupled with the pressure plate and the second mounting hole is set to be threadedly coupled to the first connecting screw, one end surface of the middle part of the box part is set to be connected to the first chuck and the other end surface of the middle part of the box part It is set to be connected in contact with the second chuck, the edge through-hole body is set to be connected to the second connecting screw and the box part is set to a rectangular box-shaped body with a leaking hole on the end face, and the bean filter part is set to a rectangular columnar body and the middle The through-hole body, the edge through-hole body and the first installation hole body are respectively set as a circular hole body, the second installation hole body is set as a threaded hole body and the outer annular groove body and the inner annular groove body are respectively set as a dovetail annular groove body The edge through-holes are arranged at intervals along the circumference of the middle through-hole, and the first installation holes and the second installation holes are respectively arranged at intervals along the circumference of the box.

The technical effect of the above technical solutions lies in that: the point-surface support for the filter cloth is realized, and the passing performance of the filtrate is improved.

According to the design of the present invention, an annular edge body I is provided on the inner end face of the frame part I of the first elastic frame, and an accommodating groove body is arranged on the outer end face of the frame part I, and the inner end face of the frame part I is provided with In order to be in contact with the plate frame and the annular edge body I is set to be embedded with the plate frame, the accommodating groove body is set to be connected to the second elastic frame on the adjacent plate frame and the inner side of the peripheral side of the frame part I is set as The frame part I is configured as an elastic ring-shaped body with a trapezoidal cross-section, the annular edge body I is configured as an elastic ring-shaped body with a dovetail-shaped cross-section, and the receiving groove body is configured as an annular groove-shaped body with a trapezoidal cross-section.

According to the design of the present invention, an annular edge body II is arranged on the inner end face of the frame part II of the second elastic frame and an annular edge body III is arranged on the outer end face of the frame part II, and the inner end face of the frame part II It is set to be connected with the frame in contact and the annular edge body II is set to be embedded with the frame, and the annular edge body III is set to be connected to the first elastic frame on the adjacent plate frame and inside the peripheral side of the frame part II The frame part II and the annular edge body III are respectively configured as an elastic ring-shaped body with a trapezoidal cross-section, and the annular edge body II is configured as an elastic ring-shaped body with a dovetail-shaped cross-section.

The technical effects of the above two technical solutions are: through the docking of the frame part I and the frame part II, and the docking of the receiving tank body and the annular edge body III, on the premise of ensuring the deformation of the frame part I and the frame part II, the The distance between the plate and frame is set, which increases the capacity of the filter medium body.

According to the design of the present invention, the pressing plate is set as a strip with a set hole body and the inner end faces of the pressing plate are respectively set to be contact-connected with the plate frame, the first elastic frame and the second elastic frame, and the outer end faces of the pressing plate are set The fitting hole body of the pressure plate is configured to be connected with the first connecting screw rod in contact with the first connecting screw rod.

According to the design of the present invention, the first connecting screw is configured as an inner hexagonal bolt and the first connecting screw is configured to be connected with the pressing plate in a continuous manner, the flange body of the first connecting screw is configured to be connected to the pressing plate and the first connecting screw is configured to be connected to the pressing plate Plate and frame threaded connection.

The technical effects of the above two technical solutions are: the re-support and fixation of the first elastic frame and the second elastic frame are realized, and the phenomenon of separation of the first elastic frame and the second elastic frame from the plate frame is prevented.

The present invention designs that the first chuck is set as a ring-shaped body with a threaded hole body and the threaded hole body of the first chuck is set to be connected with the second connecting screw, and the inner end face of the first chuck is set to be connected to the plate The frame is connected in contact and the outer end face of the first chuck is configured to be connected with the elastic block.

The present invention designs that the second chuck is set as a ring-shaped body with a fitting hole and the fitting hole of the second chuck is set to be connected with the second connecting screw, and the inner end face of the second chuck is set to be connected to the plate The frame is connected in contact and the outer end surface of the second chuck is respectively set to be connected to the flange body and the elastic block of the second connecting screw.

The present invention designs that the second connecting screw is configured as an inner hexagonal bolt and the second connecting screw is configured to be connected through the second chuck, and the flange body of the second connecting screw is configured to be connected in contact with the second chuck and the second connecting screw is connected to the second chuck. The two connecting screws are set to be threadedly connected with the first chuck.

According to the design of the present invention, the elastic block is set as an elastic seat, and the inner end faces of the elastic block are respectively set to be connected with the first chuck and the second chuck, and the outer end faces of the elastic block are set to be connected to the adjacent The outer end faces of the elastic blocks on the plate frame are contact-connected, and the elastic blocks are arranged at intervals along the circumference of the first chuck and the circumference of the second chuck.

The technical effects of the above four technical solutions are: the installation with the injection channel is realized, and the elastic block generates an elastic force on the filter residue.

According to the design of the present invention, the plate frame and the first elastic frame and the second elastic frame are arranged to be distributed according to the mode of forming a side cavity, and the plate frame, the first elastic frame and the second elastic frame and the pressure plate and the first connecting screw are arranged to be arranged according to The ways of strengthening the outer surface are distributed, the plate frame, the first elastic frame and the second elastic frame and the first chuck, the second chuck, the second connecting screw and the elastic block are set to be distributed according to the way of the inner side channel, and the pressure plate is set as The peripheral lines of the box part are arranged at intervals, and the second connecting screws are respectively arranged to be arranged at intervals along the circumference of the first chuck and the circumference of the second chuck. The center line of the plate frame, the center line of the first elastic frame, The center line of the second elastic frame, the center line of the first chuck and the center line of the second chuck are set on the same straight line, the ring edge body III is set to be connected with the receiving tank body, the ring edge body II and the ring edge body I is respectively arranged to be connected with the outer annular groove body, and the frame part II and the frame part I are respectively arranged to be connected with the box part.

According to the design of the present invention, a discharge pipe and hanging lugs are respectively arranged on the box part.

The present invention contemplates that the pressing plate is set to include a flat part and a corner part and the flat part is arranged on the peripheral side of the box part, the corner part is arranged on the corner of the box part and the flat part is arranged in a strip shape with a fitting hole body, and the gusset part is set as an L-shaped strip with a set hole.

The technical effect of the above technical solution lies in: the surrounding support and fixation of the frame part II and the frame part I are realized.

According to the design of the present invention, the discharge pipe is arranged as an L-shaped tubular body and the inner end of the discharge pipe is arranged to be connected with the first installation hole.

The technical effect of the above technical solution lies in that the discharge of the filtrate by multiple pipelines is realized.

The present invention designs that the hanging lug is set as a block with a sliding groove on the lower end face and the inner end of the hanging lug is set to be connected with the box part, and the sliding groove is set to be connected with the guide rail of the filter press.

The technical effect of the above technical solution is that: hoisting and installation of the box part is realized.

According to the design of the present invention, the first elastic frame and the second elastic frame are respectively arranged as ring-shaped strips of high molecular elastic polymer, and are respectively arranged on the peripheral side contour lines of frame part I and frame part II. It is a wavy line and the wavy line of the frame part I and the wavy line of the frame part II are respectively set in a C or W shape.

The technical effect of the above technical solution is that the elastic deformation of the first elastic frame and the second elastic frame is increased.

According to the design of the present invention, the filter beans are arranged as conical truncated bodies, and the filter beans are arranged at intervals along the peripheral line with the central point of the middle through-hole body as the center of the circle.

The technical effect of the above technical solution is that: the twitch discharge of the filtrate is realized through the trumpet through hole.

The present invention designs that the ratio of the density of the filter bean portion located on the upper end face of the box portion to the density of the bean filter portion below the end face of the box portion is set as .-.:.

The technical effect of the above technical solutions lies in that: the reasonable distribution and support of the filter cloth is realized, and the service life of the filter cloth is prolonged.

The present invention designs a method for using a central filter plate device of a filter press based on a large capacity, the steps of which are: the support and connection of the elastic frame part is realized by the plate frame, and the storage of the filter press medium is realized by the elastic frame part The cavity expands and shrinks to the periphery, so that the filter residue of the filter press medium body is flattened and expanded, and then the filter residue is separated from the filter cloth by the elastic energy storage of the elastic frame part.

The technical effect of the above technical scheme is: it highlights the technical characteristics of flattening and expanding the filter residue of the filter medium body and then separating the filter residue from the filter cloth by the elastic energy storage of the elastic frame parts, and introduces the technical characteristics of the filter press based on large capacity The method for using the machine center filter plate device is applied in the technical field.

The present invention is designed, and its steps are: spread the filter cloth on the box part and the filter bean part, put the bead into the inner annular groove body, press the bead into the inner annular groove body, so as to install the filter cloth on the box part and filter beans, install the ring edge body I in one of the outer ring grooves on the box, install the ring edge body II in the other outer ring groove on the box, put the pressure plate On the peripheral side of the box part, put the first connecting screw on the set hole of the pressure plate, make the first connecting screw rotate in the second installation hole, press the pressure plate, put the first chuck on the On one end face of the middle part of the box part, put the second chuck on the other end face of the middle part of the box part, put the second connecting screw on the set hole body and the edge through hole body of the second chuck, so that The second connecting screw rotates in the threaded hole of the first chuck, so that the first chuck and the second chuck press the box part, and the elastic block is installed on the first chuck and the second chuck, Install the middle through-hole body, the first chuck and the second chuck on the injection channel, and move the box parts together so that the ring-shaped edge body III on the adjacent plate frame and the adjacent plate frame The holding tanks on the top are butted together, and the filter medium liquid is injected into the filter press chamber composed of filter cloth, frame part I and frame part II through the injection channel and the elastic block at intervals, and exerts a retracting force on the box part. Make the box parts continue to close together, make the frame part I, frame part II and the elastic block undergo elastic deformation, shrink the filter chamber, and perform pressure filtration treatment on the filter medium liquid, and the filtrate passes through the leakage holes of the filter cloth and the box part The body enters the box part, and then the filtrate is discharged from the first installation hole body. After the filter medium liquid is press-filtered, the box parts are separated from each other, so that the ring-shaped edge body III on the adjacent plate frame Separated from the holding tank on the adjacent plate frame, the filter residue is discharged from the filter press cavity composed of filter cloth, frame part I and frame part II.

The present invention designs, and its steps are: install sliding groove body on the guide rail of filter press, make have plate frame, first elastic frame, second elastic frame, pressure plate, first connecting screw rod, first chuck, the second The second chuck, the second connecting screw, the elastic block and the filter plate device of the discharge pipe are arranged on the guide rail of the filter press, and the filtrate produced is discharged from the discharge pipe.

The technical effect of the above two technical solutions is that: the solid-liquid separation treatment of the filter medium body is realized.

The present invention designs the application of a large-capacity filter press center filter plate device and its use method in the pressure filtration treatment of pulverized coal liquid.

The technical effect of the above technical solution is that: pressure filtration treatment of pulverized coal with different particle sizes is realized.

In this technical solution, the plate frame is a basic component, which is also a necessary technical feature of the present invention. The first elastic frame, the second elastic frame, the pressing plate, the first connecting screw, the first chuck, the second chuck, the second connection Screw rod and elastic block, discharge pipe and hanging lug are functional components, and are the characteristics of realizing other technical effects of the present invention, box part, filter bean part, middle through-hole body, edge through-hole body, first installation hole body, outer ring Tank body, inner annular tank body, second mounting hole body, frame part I, ring edge body I, receiving tank body, frame part II, ring edge body II, ring edge body III, flat plate part and corner plate part and sliding groove The design that embodies these technical features is a technical feature that complies with the Patent Law and its implementing rules.

In this technical solution, it is an important technical feature to flatten and expand the filter residue of the filter medium body, and then use the elastic energy storage of the elastic frame part to separate the filter residue from the filter cloth. The plate frame and the elastic frame part are important technical features. In the technical field of the filter press central filter plate device and its use method and its application, it has novelty, creativity and practicability, and the terms in this technical solution can be explained and understood with the patent documents in this technical field.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the schematic diagram of one of the first embodiment of the present invention,

Fig. 2 is a schematic diagram of the assembled structure of one of the first embodiments of the present invention,

Fig. 3 is the schematic diagram of the second embodiment of the first embodiment of the present invention,

Figure 4 is a right side view of Figure 3,

Plate frame-1, first elastic frame-2, second elastic frame-3, pressure plate-4, first connecting screw-5, first chuck-6, second chuck-7, second connecting screw-8 , elastic block-9, discharge pipe-91, hanging ear-92, box part-11, filter bean part-12, middle through-hole body-13, edge through-hole body-18, first installation hole body-14, outer Annular tank body-15, inner annular tank body-16, second mounting hole body-17, frame part I-21, annular edge body I-22, receiving tank body-23, frame part II-31, annular edge body II -32, ring edge body III-33, flat plate part-41, corner plate part-42, sliding groove body-921.

Detailed ways

According to the review guidelines, terms such as "having", "comprising" and "including" used in the present invention should be understood as not deriving the presence or addition of one or more other elements or combinations thereof.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as there is no conflict with each other. In addition, unless otherwise specified, the equipment and materials used in the following examples are commercially available. If the processing conditions are not clearly stated, please refer to the purchased product manual or follow the conventional methods in this field.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

A central filter plate device based on a large-capacity filter press. Figure 1 is one of the first embodiments of the present invention. This embodiment will be described in detail in conjunction with the accompanying drawings, including a plate frame 1, a first elastic frame 2, a second Two elastic frame 3, pressing plate 4, the first connecting screw rod 5, the first chuck 6, the second chuck 7, the second connecting screw rod 8 and elastic block 9 and the first elastic frame 2, the first elastic frame 2, The second elastic frame 3, the first chuck 6, the second chuck 7 and the second connecting screw 8 are provided with a pressing plate 4 between the first elastic frame 2 and the second elastic frame 3 and the plate frame 1 and between the pressing plate 4 A first connecting screw 5 is provided between the plate frame 1, a second connecting screw 8 is provided between the first chuck 6 and the second chuck 7 and the plate frame 1 and between the first chuck 6 and the second chuck Elastic blocks 9 are respectively arranged on the discs 7 .

In this embodiment, the plate frame 1 is set to include a box portion 11 and a filter bean portion 12 and is provided with a middle through-hole body 13 and an edge through-hole body 18 in the middle of the box portion 11, and on the peripheral side of the box portion 11 The lower part is provided with a first mounting hole body 14 and an outer annular groove body 15 and an inner annular groove body 16 are respectively provided on the edge of the end face of the box portion 11, and a second mounting hole body 17 is provided on the peripheral side of the box portion 11 and The end face of the box part 11 is set to be connected with the filter bean part 12, and one of the outer annular grooves 15 on the box part 11 is set to be connected to the first elastic frame 2 and the other one of the outer annular grooves on the box part 11. The annular groove body 15 is set to be connected in contact with the second elastic frame 3, the peripheral side of the box part 11 is set to be connected to the pressure plate 4 and the second mounting hole 17 is set to be threadedly connected to the first connecting screw 5, the box part One of the end faces of the middle part of the box part 11 is set to be connected to the first chuck 6 and the other end face of the middle part of the box part 11 is set to be connected to the second chuck 7, and the edge through-hole body 18 is set to be connected to the second chuck 7. Two connecting screw rods 8 are connected and the box part 11 is set to a rectangular box-shaped body with a leakage hole on the end face, the filter bean part 12 is set to a rectangular columnar body and the middle through-hole body 13, the edge through-hole body 18 and the first installation hole body 14 are respectively set as circular holes, the second mounting holes 17 are set as threaded holes and the outer annular groove 15 and the inner annular groove 16 are respectively set as dovetail annular grooves, and the edge through hole 18 is set as The first mounting holes 14 and the second mounting holes 17 are arranged at intervals along the circumference of the middle through-hole body 13 and arranged at intervals along the circumference of the box portion 11 .

Through the drill body 1, the supporting connection points for the first elastic frame 2, the second elastic frame 3, the pressure plate 4, the first connecting screw 5, the first chuck 6, the second chuck 7 and the second connecting screw 8 are formed. , by the outer annular groove 15, the connection with the first elastic frame 2 is realized, the connection with the second elastic frame 3 is realized, the connection with the pressure plate 4 is realized by the box part 11, and the connection with the first chuck is realized. 6, the connection with the second chuck 7 is realized, the connection with the first connecting screw 5 is realized by the second mounting hole 17, and the connection with the second connecting screw 8 is realized by the edge through hole 18. Connection, the filter bean part 12 and the inner annular groove body 16 realize the connection processing of the filter cloth, the middle through-hole body 13 realizes the connection processing of the feeding pipeline, and the first installation hole body 14 realizes the connection processing as The technical purpose of the filtrate discharge treatment is to be used as one of the components for containing and storing the filter medium liquid.

In this embodiment, an annular edge body I22 is provided on the inner end face of the frame part I21 of the first elastic frame 2 and an accommodating groove body 23 is provided on the outer end face of the frame part I21. The inner end of the frame part I21 The end face is set to be connected in contact with the plate frame 1 and the annular edge body I22 is set to be embedded in the plate frame 1, and the accommodating groove body 23 is set to be connected to the second elastic frame 3 on the adjacent plate frame 1 and the frame The inside of the peripheral side of part I21 is set to be in contact with the pressure plate 4, the frame part I21 is set as an elastic ring-shaped body with a trapezoidal cross-section, the annular edge body I22 is set as an elastic ring-shaped body with a dovetail-shaped cross-section and the accommodating groove body 23 is set It is an annular groove-shaped body with a trapezoidal section.

Through the first elastic frame 2, the supporting connection points for the plate frame 1, the second elastic frame 3 and the pressure plate 4 are formed, the connection with the plate frame 1 is realized by the annular edge body I22, and the connection with the plate frame 1 is realized by the receiving groove body 23. The connection with the second elastic frame 3 is realized by the frame part I21 and the connection with the pressure plate 4, and its technical purpose is to be used as the second component for containing and storing the filter medium liquid.

In this embodiment, an annular edge body II32 is provided on the inner end face of the frame part II31 of the second elastic frame 3 and an annular edge body III33 is provided on the outer end face of the frame part II31. The inner end of the frame part II31 The end face is set to be connected in contact with the plate frame 1 and the annular edge body II32 is set to be embedded in the plate frame 1, and the annular edge body III33 is set to be connected to the first elastic frame 2 on the adjacent plate frame 1 and the frame The inside of the peripheral side of part II31 is set to be in contact with the pressure plate 4, the frame part II31 and the annular edge body III33 are respectively set as an elastic ring-shaped body with a trapezoidal cross-section, and the annular edge body II32 is set as an elastic ring-shaped body with a dovetail-shaped cross-section .

Through the second elastic frame 3, the support connection point for the plate frame 1, the first elastic frame 2 and the pressure plate 4 is formed, the connection with the plate frame 1 is realized by the annular edge body II32, and the connection with the plate frame 1 is realized by the annular edge body III33. The connection with the first elastic frame 2 is realized by the frame part II31 and the connection with the pressure plate 4, and its technical purpose is to be used as the third component for containing and storing the filter medium liquid.

In this embodiment, the pressing plate 4 is set as a strip with a hole in it, and the inner end faces of the pressing plate 4 are respectively set to be contact-connected with the plate frame 1, the first elastic frame 2 and the second elastic frame 3, and the pressing plate The outer end surface of 4 is configured to be coupled with the first connecting screw 5 in contact and the sleeve hole of the pressing plate 4 is configured to be coupled with the first connecting screw 5 .

Through the pressing plate 4, the supporting connection points for the plate frame 1, the first elastic frame 2, the second elastic frame 3 and the first connecting screw 5 are formed, and the connection with the plate frame 1 is realized by the pressing plate 4, and the connection with the second elastic frame is realized. The connection of an elastic frame 2 realizes the connection with the second elastic frame 3 and realizes the connection with the first connecting screw 5. One of the components that make connections between boxes 1.

In this embodiment, the first connecting screw 5 is set as an inner hexagonal bolt and the first connecting screw 5 is configured to be connected with the pressure plate 4 in a through manner, the flange body of the first connecting screw 5 is set to be connected with the pressure plate 4 in contact and the second A connecting screw 5 is configured to be threadedly connected with the plate frame 1 .

Through the first connecting screw 5, the supporting connection point to the plate frame 1 and the pressing plate 4 is formed, and the connection with the plate frame 1 and the pressing plate 4 are realized by the first connecting screw 5. The technical purpose is to: The second part is used as the connection between the first elastic frame 2 and the second elastic frame 3 and the plate frame 1 .

In this embodiment, the first chuck 6 is configured as a ring-shaped body with a threaded hole and the threaded hole of the first chuck 6 is configured to be coupled with the second connecting screw 8, and the inner end surface of the first chuck 6 The outer end face of the first chuck 6 is configured to be coupled with the elastic block 9 .

Through the first chuck 6, the support connection point for the plate frame 1, the second connecting screw 8 and the elastic block 9 is formed, and the connection with the plate frame 1 is realized by the first chuck 6, and the connection with the second The connection of the screw rod 8 realizes the connection with the elastic block 9, and its technical purpose is to be used as one of the components for strengthening the connection between the plate frame 1 and the feed pipeline.

In this embodiment, the second chuck 7 is configured as a ring-shaped body with a fitting hole and the fitting hole of the second chuck 7 is configured to be coupled with the second connecting screw 8, and the inner end surface of the second chuck 7 The part is configured to be contact-coupled with the plate frame 1 and the outer end face of the second chuck 7 is respectively configured to be coupled with the flange body of the second connecting screw 8 and the elastic block 9 .

Through the second chuck 7, the support connection point for the plate frame 1, the second connecting screw 8 and the elastic block 9 is formed, and the connection with the plate frame 1 is realized by the second chuck 7, and the connection with the second The connection of the screw 8 realizes the connection with the elastic block 9, and its technical purpose is to be used as the second component for strengthening the connection between the plate frame 1 and the feed pipeline.

In this embodiment, the second connecting screw 8 is set as an inner hexagonal bolt and the second connecting screw 8 is set to be coupled with the second chuck 7 in series, and the flange body of the second connecting screw 8 is set to be connected to the second chuck 7 contact coupling and the second connecting screw 8 is set to be thread coupling with the first chuck 6 .

Through the second connecting screw 8, a supporting connection point to the first chuck 6 and the second chuck 7 is formed, and by the second connecting screw 8, the connection with the first chuck 6 is realized, and the connection with the second chuck is realized. The technical purpose of the connection of the disc 7 is: it is used as the third component for strengthening the connection between the plate frame 1 and the feed pipeline.

In this embodiment, the elastic block 9 is set as an elastic seat and the inner end faces of the elastic block 9 are respectively set to be coupled with the first chuck 6 and the second chuck 7, and the outer end faces of the elastic block 9 are set It is connected in contact with the outer end surface of the elastic block 9 on the adjacent plate frame 1, and the elastic blocks 9 are respectively arranged to be arranged at intervals along the circumferential line of the first chuck 6 and the circumferential line of the second chuck 7 .

Through the elastic block 9, the supporting connection point to the first chuck 6 and the second chuck 7 is formed, and by the elastic block 9, the connection with the first chuck 6 is realized, and the connection with the second chuck 7 is realized. , the technical purpose of which is to be used as a component for the injection channel of the filter medium liquid.

In this embodiment, the plate frame 1 and the first elastic frame 2 and the second elastic frame 3 are arranged to be distributed in a manner to form a side cavity and the plate frame 1, the first elastic frame 2 and the second elastic frame 3 and the pressing plate 4 and the first connecting screw 5 are set to be distributed according to the mode of outer surface reinforcement, the plate frame 1, the first elastic frame 2 and the second elastic frame 3 are connected with the first chuck 6, the second chuck 7, the second connecting screw 8 and The elastic block 9 is set to be distributed according to the channel on the inner surface, the pressure plate 4 is set to be arranged at intervals along the peripheral line of the box part 11, and the second connecting screw 8 is set to be arranged along the circumferential line of the first chuck 6 and the second chuck 7 respectively. The circumferential lines of the frame are arranged at intervals, the centerline of the plate frame 1, the centerline of the first elastic frame 2, the centerline of the second elastic frame 3, the centerline of the first chuck 6 and the centerline of the second chuck 7 are set On the same straight line, the annular edge body III33 is arranged to be connected with the receiving tank body 23, the annular edge body II32 and the annular edge body I22 are respectively arranged to be connected to the outer annular groove body 15, and the frame part II31 and the frame part I21 are respectively arranged to be connected to the outer annular groove body 15. The box part 11 is connected.

The present invention will be further described below in conjunction with the examples, and the following examples are intended to illustrate the present invention rather than further limit the present invention.

A method for using a central filter plate device of a filter press based on a large capacity, one of the first embodiments of the present invention, the steps are: spread the filter cloth on the box part 11 and the filter bean part 12, put the bead Into the inner annular groove body 16, the bead is pressed into the inner annular groove body 16, so that the filter cloth is installed on the box part 11 and the filter bean part 12, and the annular edge body I22 is installed on one of the outer parts located on the box part 11. In the annular groove body 15, the annular edge body II 32 is installed in another outer annular groove body 15 located on the box portion 11, the pressing plate 4 is placed on the peripheral side of the box portion 11, and the first connecting screw 5 is placed On the set hole body of the pressure plate 4, the first connecting screw 5 is rotated in the second installation hole body 17, the pressure plate 4 is pressed tightly, and the first chuck 6 is placed on one of the end faces of the middle part of the box part 11 , put the second chuck 7 on the other end surface of the middle part of the box part 11, put the second connecting screw 8 into the sleeve hole body and the edge through hole body 18 of the second chuck 7, so that the second connecting screw 8 is rotated in the threaded hole body of the first chuck 6, so that the first chuck 6 and the second chuck 7 press the box part 11, and the elastic block 9 is installed on the first chuck 6 and the second chuck On the disk 7, the middle through-hole body 13, the first chuck 6 and the second chuck 7 are installed on the injection channel, and the box part 11 is moved together to make the ring edge on the adjacent plate frame 1 The body III33 is docked with the holding tank body 23 located on the adjacent plate frame 1, and the filter medium liquid is injected into the press filter composed of filter cloth, frame part I21 and frame part II31 through the injection channel and the interval between the elastic block 9 In the cavity, a closing force is applied to the box part 11, so that the box part 11 continues to move towards each other, so that the frame part I21, the frame part II31 and the elastic block 9 are elastically deformed, so that the filter press cavity shrinks, and the filter medium liquid Carry out pressure filtration treatment, the filtrate enters in the box portion 11 through the filter cloth and the leaking hole body of the box portion 11, and then the filtrate is discharged from the first installation hole body 14, when the filter medium liquid is completed and the pressure filtration process is performed, the box portion 11 to move apart from each other, so that the annular edge body III33 on the adjacent plate frame 1 is separated from the receiving tank body 23 on the adjacent plate frame 1, and the filter residue is composed of filter cloth, frame part I21 and frame part II31 The filter press cavity is discharged.

A central filter plate device based on a large-capacity filter press. Figure 3 is the second embodiment of the first embodiment of the present invention. This embodiment will be described in detail in conjunction with the accompanying drawings. It includes a discharge pipe 91 and hanging ears 92 and is in the box 11 are respectively provided with discharge pipes 91 and hanging ears 92 .

In this embodiment, the pressing plate 4 is configured to include a flat plate portion 41 and a corner plate portion 42 and the flat plate portion 41 is disposed on the peripheral side of the box portion 11, the corner plate portion 42 is disposed on a corner portion of the box portion 11 and the flat plate portion 41 It is arranged as a strip with a fitting hole, and the gusset 42 is arranged as an L-shaped strip with a fitting hole.

Its technical purpose is to improve the connection strength between the first elastic frame 2 and the second elastic frame 3 and the plate frame 1 .

In this embodiment, the discharge pipe 91 is configured as an L-shaped tubular body and the inner end of the discharge pipe 91 is configured to be coupled with the first installation hole body 14 .

Through the discharge pipe 91, a support connection point to the plate frame 1 is formed, and the connection with the plate frame 1 is realized by the discharge pipe 91, and its technical purpose is to be used as a component for discharging the filtrate.

In this embodiment, the hanging lug 92 is set as a block with a sliding groove 921 on the lower end surface and the inner end of the hanging lug 92 is set to be connected with the box part 11, and the sliding groove 921 is set to be connected to the filter press. Rail connection.

Through the hanging lugs 92, the supporting connection point for the plate frame 1 is formed, and the connection with the plate frame 1 is realized by the hanging lugs 92. Its technical purpose is to be used as a component that drives the plate frames 1 to move together or separate. .

A method for using a central filter plate device of a filter press based on a large capacity, the second embodiment of the present invention, the steps are: install the sliding tank body 921 on the guide rail of the filter press, so that the plate frame 1 , the filter press of the first elastic frame 2, the second elastic frame 3, the pressing plate 4, the first connecting screw 5, the first chuck 6, the second chuck 7, the second connecting screw 8, the elastic block 9 and the discharge pipe 91 The machine filter plate device is arranged on the guide rail of the filter press, and the filtrate produced is discharged through the discharge pipe 91.

A central filter plate device based on a large-capacity filter press, the third embodiment of the present invention, this embodiment will be described in detail in conjunction with the accompanying drawings, the first elastic frame 2 and the second elastic frame 3 are respectively set as polymer The ring-shaped strip of elastic polymer is provided with wavy lines on the peripheral side contour lines of the frame part I21 and the peripheral side contour lines of the frame part II31 respectively, and the wavy lines of the frame part I21 and the wavy lines of the frame part II31 are respectively arranged It is C or W shape.

Its technical purpose is to improve the mutual closing or separating movement performance between the frame part I21 and the frame part II31.

In this embodiment, the filter bean parts 12 are arranged as conical frustums and arranged in intervals along a peripheral line with the central point of the middle through-hole body 13 as the center.

Its technical purpose is to obtain a filtrate conical passage section on the end face of the box part 11 .

In this embodiment, the ratio of the density of the filter bean portion 12 on the upper end surface of the box portion 11 to the density of the bean filter portion 12 on the lower end surface of the box portion 11 is set to 1.4-1.9:1.

Its technical purpose is to stably support the filter cloth on the end face of the box part 11 .

In one of the supporting examples of the third embodiment of the first embodiment of the present invention, the ratio of the density of the bean filter portion 12 located at the upper end surface of the box portion 11 to the density of the bean filter portion 12 at the lower end surface of the box portion 11 is set to 1.4 :1.

In the second supporting example of the third embodiment of the first embodiment of the present invention, the ratio of the density of the filter bean portion 12 located at the upper end surface of the box portion 11 to the density of the bean filter portion 12 at the lower end surface of the box portion 11 is set to 1.9 :1.

In the supporting example 3 of the third embodiment of the first embodiment of the present invention, the ratio of the density of the filter bean portion 12 located at the upper end surface of the box portion 11 to the density of the bean filter portion 12 at the lower end surface of the box portion 11 is set to 1.65 :1.

The application of a large-capacity filter press central filter plate device and its use method in the press-filtration treatment of pulverized coal liquid.

Generally, the diameter range of coal powder particles is 0-1000um, and most of them are 20-50um particles. After verification of the present invention, the present invention can carry out pressure filtration treatment on coal powder particles smaller than 20um and the effect is very good.

In the second embodiment of the present invention, the plate frame 1 and the elastic frame part are connected to each other in such a way that the filter residue of the filter press medium body is flattened and expanded, and then the elastic energy storage of the elastic frame part separates the filter residue from the filter cloth.

In this embodiment, the elastic frame member is connected with the plate frame 1 in such a way that the cavity storing the filter press medium is expanded and contracted to the periphery.

In this embodiment, the elastic frame component is set as the first elastic frame 2 or the second elastic frame 3 .

In this embodiment, the first elastic frame 2 and the second elastic frame 3 are provided with a butt joint and a deformation portion, and the butt joint of the first elastic frame 2 is set as an annular edge body I22, and the deformation portion of the first elastic frame 2 It is set as the frame part I21 and the receiving groove body 23 and the butt joint part of the second elastic frame 3 is set as the ring edge body II32, and the deformation part of the second elastic frame 3 is set as the frame part II31 and the ring edge body III33.

In this embodiment, a first accessory device is also included and the first accessory device is arranged between the plate frame 1 and the elastic frame member, and the first accessory device is configured to include a pressure plate 4 and a first connecting screw 5 .

In this embodiment, a second accessory device is also included and the second accessory device is arranged on the plate frame 1, and the second accessory device is configured to include a first chuck 6, a second chuck 7, and a second connecting screw 8 and elastic block9.

In this embodiment, a third accessory device is also included and disposed on the plate frame 1 , and the third accessory device is configured as a discharge pipe 91 .

In this embodiment, a fourth accessory device is also included and disposed on the panel frame 1 , and the fourth accessory device is configured as a hanging ear 92 .

The second embodiment of the present invention is based on the first embodiment,

In the second embodiment of the present invention, the supporting connection to the elastic frame parts is realized by the plate frame 1, and the expansion and contraction of the cavity storing the filter press medium body to the periphery are realized by the elastic frame parts, and the pressure filter medium is realized. The filter residue of the body is flattened and expanded, and then the filter residue is separated from the filter cloth by the elastic energy storage of the elastic frame part.

The second embodiment of the present invention is based on the first embodiment,

The present invention has following characteristics:

1. Due to the design of the plate frame 1 and the elastic frame part, the support connection to the elastic frame part is realized through the plate frame 1, and the expansion and contraction of the cavity storing the filter press medium to the periphery is realized through the elastic frame part. It realizes the flattening and expanding treatment of the filter residue of the filter medium body, and then separates the filter residue from the filter cloth by the elastic energy storage of the elastic frame part, and solves the problem of shrinking the filter cavity after the two parts are accommodated and moved. The filter residue is compacted, and the technical problem of self-weight separation of the compressed filter residue and the filter cloth, thus improving the working efficiency of the filter press.

2. Due to the design of the pressing plate 4 and the first connecting screw 5, the reinforced connection of the first elastic frame 2 and the second elastic frame 3 is realized.

3. Due to the design of the first chuck 6, the second chuck 7, the second connecting screw 8 and the elastic block 9, the connection with the injection channel is realized.

4. Due to the design of the discharge pipe 91, the filtrate is discharged.

5. Due to the design of the hanging lug 92, the sliding installation of the panel frame 1 is realized.

6. Due to the limitation of the numerical range of the structural shape, the numerical range is the technical feature in the technical solution of the present invention, not the technical feature obtained through formula calculation or limited number of tests. The test shows that the numerical range is limited Technical Features A very good technical effect has been achieved.

7. Due to the design of the technical features of the present invention, the tests show that the various performance indicators of the present invention are at least 1.7 times that of the existing various performance indicators. Very good market value with appraisal.

There are other technical features that are connected with the plate frame 1 and the elastic frame parts that are connected to the plate frame 1 and the elastic frame parts that carry out flat expansion processing on the filter residue of the filter medium body and then use the elastic energy storage of the elastic frame parts to separate the filter residue from the filter cloth. One of the examples, and the various technical features of the above-mentioned embodiments can be combined arbitrarily. Examples are described.

The above-mentioned embodiment is only a form of realization of the large-capacity filter press central filter plate device and its use method and its application provided by the present invention. According to other variants of the solution provided by the present invention, the components or elements thereof are increased or decreased. steps, or using the present invention in other technical fields close to the present invention, all belong to the protection scope of the present invention.

Claims (10)

1. The utility model provides a filter press center filter plate device based on large capacity which characterized by: comprises a plate frame (1) used as a support body and an elastic frame component arranged on the edge part of the end surface of the plate frame (1).

2. The large volume based filter press central filter plate assembly of claim 1 wherein: the plate frame (1) and the elastic frame part are connected with each other according to the way that filter residues of the filter-pressing medium body are subjected to flat expansion treatment and then are separated from the filter cloth by elastic energy storage of the elastic frame part.

3. The large volume based filter press central filter plate assembly of claim 2, wherein: the elastic frame component is connected with the plate frame (1) in a way of expanding and contracting towards the periphery of the cavity for storing the filter-pressing medium body.

4. The large volume based filter press central filter plate assembly of claim 1 wherein: the elastic frame part is arranged into a first elastic frame (2) or a second elastic frame (3),

or, the first elastic frame (2) and the second elastic frame (3) are provided with butt joint parts and deformation parts, the butt joint parts of the first elastic frame (2) are arranged into an annular edge body I (22), the deformation parts of the first elastic frame (2) are arranged into a frame part I (21) and a containing groove body (23), the butt joint parts of the second elastic frame (3) are arranged into an annular edge body II (32), the deformation parts of the second elastic frame (3) are arranged into a frame part II (31) and an annular edge body III (33),

or, the first accessory device is arranged between the plate frame (1) and the elastic frame part and comprises a pressure plate (4) and a first connecting screw rod (5),

or the device also comprises a second accessory device which is arranged on the plate frame (1), the second accessory device is arranged to comprise a first chuck (6), a second chuck (7), a second connecting screw rod (8) and an elastic block (9),

or, a third accessory device is also included and arranged on the plate frame (1), the third accessory device is arranged as a discharge pipe (91),

or, a fourth accessory device is also included and arranged on the plate frame (1), and the fourth accessory device is arranged as a hanging lug (92).

5. The large volume based filter press central filter plate assembly of claim 4 wherein: be provided with first elasticity frame (2) respectively on sheet frame (1), second elasticity frame (3), first chuck (6), second chuck (7) and second connecting screw (8), be provided with clamp plate (4) and be provided with first connecting screw (5) between clamp plate (4) and sheet frame (1) between first elasticity frame (2) and second elasticity frame (3) and sheet frame (1), be provided with second connecting screw (8) and be provided with elasticity piece (9) respectively on first chuck (6) and second chuck (7) and sheet frame (1) between first chuck (6) and second chuck (7).

6. The large capacity-based filter press center filter plate assembly of claim 5, wherein: the plate frame (1) is set to comprise a box part (11) and a bean filtering part (12), a middle through hole body (13) and an edge through hole body (18) are arranged in the middle of the box part (11), a first mounting hole body (14) is arranged on the lower portion of the peripheral side face of the box part (11), an outer annular groove body (15) and an inner annular groove body (16) are respectively arranged on the end face edge portion of the box part (11), a second mounting hole body (17) is arranged on the peripheral side face portion of the box part (11), the end face portion of the box part (11) is set to be connected with the bean filtering part (12), one outer annular groove body (15) on the box part (11) is set to be in contact connection with a first elastic frame (2) and the other outer annular groove body (15) on the box part (11) is set to be in contact connection with a second elastic frame (3), the periphery of the box part (11) is set to be connected with a rectangular side face portion of a pressing plate (4) and the second mounting hole body (17) is set to be in contact connection with a first connecting screw rod (5), one outer annular groove body is set to be connected with the end face edge portion of the box part (11) and the middle portion of the second mounting hole body (6) is set to be connected with a second connecting screw rod (8), the bean filtering part (12) is arranged into a rectangular column body, the middle through hole body (13), the edge through hole body (18) and the first mounting hole body (14) are respectively arranged into a circular hole body, the second mounting hole body (17) is arranged into a threaded hole body, the outer annular groove body (15) and the inner annular groove body (16) are respectively arranged into a dovetail annular groove body, the edge through hole bodies (18) are arranged to be distributed along the circumferential line of the middle through hole body (13) at intervals, the first mounting hole body (14) and the second mounting hole body (17) are respectively arranged to be distributed along the circumferential line of the box part (11) at intervals,

or, the inner end face portion of frame I (21) at first elasticity frame (2) is provided with annular edge body I (22) and is provided with at the outer end face portion of frame I (21) and holds cell body (23), the inner end face portion of frame I (21) sets up to hookup with sheet frame (1) contact and annular edge body I (22) sets up to hookup with sheet frame (1) is embedded, hold cell body (23) set up to hookup with second elasticity frame (3) that is located on adjacent sheet frame (1) and the peripheral side of frame I (21) is inside to set up to hookup with clamp plate (4) contact, frame I (21) sets up to the elasticity circula body that has trapezoidal cross-section, annular edge body I (22) sets up to the elasticity circula body that has dovetail cross-section and holds cell body (23) and sets up to the ring channel body that has trapezoidal cross-section,

or, the inner end surface of the frame II (31) of the second elastic frame (3) is provided with an annular edge body II (32) and the outer end surface of the frame II (31) is provided with an annular edge body III (33), the inner end surface of the frame II (31) is connected with the plate frame (1) in a contact mode, the annular edge body II (32) is connected with the plate frame (1) in an embedded mode, the annular edge body III (33) is connected with the first elastic frame (2) on the adjacent plate frame (1) in a connected mode, the inner portion of the peripheral side face of the frame II (31) is connected with the pressing plate (4) in a contact mode, the frame II (31) and the annular edge body III (33) are respectively provided with elastic ring bodies with trapezoidal cross sections, and the annular edge body II (32) is provided with elastic ring bodies with swallowtail-shaped cross sections,

or the pressing plate (4) is a strip body with a sleeved hole body, the end surface part of the inner end of the pressing plate (4) is respectively connected with the plate frame (1), the first elastic frame (2) and the second elastic frame (3) in a contact way, the end surface part of the outer end of the pressing plate (4) is connected with the first connecting screw rod (5) in a contact way, the sleeved hole body of the pressing plate (4) is connected with the first connecting screw rod (5),

or the first connecting screw (5) is arranged to be a hexagon socket head cap screw and the first connecting screw (5) is arranged to be in serial connection with the pressure plate (4), the flange body of the first connecting screw (5) is arranged to be in contact connection with the pressure plate (4) and the first connecting screw (5) is arranged to be in threaded connection with the plate frame (1),

or the first chuck (6) is arranged into a ring body with a threaded hole body and the threaded hole body of the first chuck (6) is arranged to be connected with the second connecting screw rod (8), the inner end surface part of the first chuck (6) is arranged to be in contact connection with the plate frame (1) and the outer end surface part of the first chuck (6) is arranged to be connected with the elastic block (9),

or the second chuck (7) is arranged into a ring body with a sleeving hole body, the sleeving hole body of the second chuck (7) is connected with the second connecting screw rod (8), the inner end surface part of the second chuck (7) is connected with the plate frame (1) in a contact way, the outer end surface part of the second chuck (7) is respectively connected with the flange body of the second connecting screw rod (8) and the elastic block (9),

or the second connecting screw rod (8) is arranged as a hexagon socket head cap screw and the second connecting screw rod (8) is arranged to be connected with the second chuck (7) in a penetrating way, the flange body of the second connecting screw rod (8) is arranged to be connected with the second chuck (7) in a contact way and the second connecting screw rod (8) is arranged to be connected with the first chuck (6) in a threaded way,

or the elastic block (9) is arranged into an elastic seat body, the inner end surface part of the elastic block (9) is respectively connected with the first chuck (6) and the second chuck (7), the outer end surface part of the elastic block (9) is arranged into contact connection with the outer end surface part of the elastic block (9) positioned on the adjacent plate frame (1), and the elastic blocks (9) are respectively arranged along the circumferential line of the first chuck (6) and the circumferential line of the second chuck (7) at intervals,

or the plate frame (1), the first elastic frame (2) and the second elastic frame (3) are distributed according to a mode of forming a side cavity, the plate frame (1), the first elastic frame (2), the second elastic frame (3), the pressing plate (4) and the first connecting screw (5) are distributed according to a mode of reinforcing the outer side surface, the plate frame (1), the first elastic frame (2), the second elastic frame (3), the first chuck (6) and the second chuck (7), the second connecting screw rods (8) and the elastic blocks (9) are arranged to be distributed according to the inner side surface channel mode, the pressing plates (4) are arranged to be distributed at intervals along the peripheral line of the box part (11), the second connecting screw rods (8) are respectively arranged to be distributed at intervals along the peripheral line of the first chuck (6) and the peripheral line of the second chuck (7), the central line of sheet frame (1), the central line of first elasticity frame (2), the central line of second elasticity frame (3), the central line of first chuck (6) and the central line setting of second chuck (7) are on same straight line, annular edge body III (33) set up to and hold cell body (23) hookup, annular edge body II (32) and annular edge body I (22) set up respectively to and outer annular cell body (15) hookup, frame II (31) and frame I (21) set up respectively to and box portion (11) hookup.

7. The large capacity-based filter press center filter plate assembly of claim 5, wherein: the box part (11) is respectively provided with a discharge pipe (91) and a hanging lug (92),

or the pressing plate (4) is arranged to include a flat plate part (41) and a corner plate part (42), the flat plate part (41) is arranged on the peripheral side surface part of the box part (11), the corner plate part (42) is arranged on the corner part of the box part (11), the flat plate part (41) is arranged to be a strip-shaped body with a sleeving hole body, the corner plate part (42) is arranged to be an L-shaped strip-shaped body with a sleeving hole body,

or, the discharge pipe 91 is provided as an L-shaped tubular body and an inner end of the discharge pipe 91 is provided to be coupled with the first mounting hole body 14,

or the hanging lug (92) is a block body with a sliding groove body (921) at the lower end surface part, the inner end head of the hanging lug (92) is connected with the box part (11), the sliding groove body (921) is connected with a guide rail of the filter press,

or the first elastic frame (2) and the second elastic frame (3) are respectively arranged into annular strip bodies of high polymer elastic polymers, the peripheral side surface contour line of the frame I (21) and the peripheral side surface contour line of the frame II (31) are respectively arranged into wavy lines, the wavy lines of the frame I (21) and the wavy lines of the frame II (31) are respectively arranged into C or W shapes,

or the bean filtering part (12) is arranged into a cone-shaped table-shaped body and the bean filtering part (12) is arranged and distributed at intervals along the peripheral line which takes the central point of the middle through hole body (13) as the center,

or, the ratio of the density of the bean-filtering part (12) positioned above the end face of the box part (11) to the density of the bean-filtering part (12) positioned below the end face of the box part (11) is set to 1.4-1.9.

8. A method for using a central filter plate device of a filter press based on large capacity comprises the following steps: the support connection of the elastic frame component is realized by the plate frame (1), the cavity for storing the filter-pressing medium body is expanded and contracted towards the periphery by the elastic frame component, the filter residue of the filter-pressing medium body is subjected to flat expansion treatment, and then the filter residue is separated from the filter cloth by the elastic energy storage of the elastic frame component.

9. The method of using a high capacity based filter press central filter plate assembly of claim 8 wherein: the method comprises the following steps: laying filter cloth on a box part (11) and a bean filtering part (12), placing a pressing strip in an inner annular groove body (16) to press the pressing strip into the inner annular groove body (16), thereby installing the filter cloth on the box part (11) and the bean filtering part (12), installing an annular edge body I (22) in one of outer annular groove bodies (15) on the box part (11), installing an annular edge body II (32) in the other outer annular groove body (15) on the box part (11), placing a pressing plate (4) on the peripheral side surface part of the box part (11), placing a first connecting screw (5) on a sleeved hole body of the pressing plate (4), rotating the first connecting screw (5) in a second installation hole body (17), pressing the pressing plate (4), placing a first chuck (6) on one end surface of the middle part of the box part (11), placing a second chuck (7) on the other end surface of the chuck part (11), placing a second chuck (8) on the middle part of the second chuck part (6), rotating the chuck (7) and connecting the chuck (8), and connecting the chuck (6) with a second chuck block, and connecting the chuck (8), installing a middle through hole body (13), a first chuck (6) and a second chuck (7) on an injection channel, enabling an annular edge body III (33) on an adjacent plate frame (1) to be in butt joint with a containing groove body (23) on the adjacent plate frame (1) by mutually folding a box part (11), injecting a filtering medium liquid into a filter pressing cavity formed by filtering cloth, a frame part I (21) and a frame part II (31) at intervals between the injection channel and an elastic block (9), applying folding acting force on the box part (11), enabling the box part (11) to continuously carry out mutual folding motion, enabling the frame part I (21), the frame part II (31) and the elastic block (9) to carry out elastic deformation, enabling the filter pressing cavity to shrink, carrying out filter pressing treatment on the filtering medium liquid, enabling filtrate to enter the box part (11) through a permeable hole body of the filtering cloth and the box part (11), then discharging the filtrate through a first installation hole body (14), after the filter pressing treatment is finished, enabling the box part (11) to carry out mutual separation motion on the filtering medium liquid, enabling the adjacent box part (11) to be located on the filtering cloth and the adjacent frame part I (21) to be located on the annular edge body (23, enabling the filter residue (31) to be separated from the adjacent frame part I (21) and the filter pressing cavity body (31),

or, the steps are: the sliding groove body (921) is arranged on a guide rail of a filter press, so that a filter press filter plate device with a plate frame (1), a first elastic frame (2), a second elastic frame (3), a pressing plate (4), a first connecting screw rod (5), a first chuck (6), a second chuck (7), a second connecting screw rod (8), an elastic block (9) and a discharge pipe (91) is arranged on the guide rail of the filter press, and the generated filtrate is discharged by the discharge pipe (91).

10. A large-capacity-based central filter plate device of a filter press and an application method thereof are applied to filter pressing treatment of coal dust liquid.

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