KR810000828B1 - Device for concentrating and washing solids in solids-containing fluid - Google Patents

Abstract

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Description

Device for concentrating and washing solids in solids-containing fluid

1 is a partial cross-sectional view of the concentrating and washing apparatus of the present invention having a plurality of coaxially mounted rotor elements and filter elements and having a washing fluid inlet and an outlet. Side elevation view by

2 is a cut-away elevational view of a curved disc part of a wheel drive element used in the present invention.

FIG. 3 is a cross-sectional view of the bent disc of the wheel other element viewed along the line 3-3 of FIG. 2 in the direction of the arrow.

FIG. 4 shows a pump having a plurality of coaxially mounted rotor disc elements and a Filta element opened therebetween for pumping the cleaning fluid in a direction opposite to the flow of feed material in the apparatus. Side elevational view, in partial cross section, of a concentrated mining scrubber of the present invention with a flushing fluid inlet and outlet provided therein

5 is a cross-sectional elevation view of a radially spread rotating disc element used in the apparatus of the present invention.

The present invention relates to an apparatus for separating solids from a solids-containing fluid and for cleaning solids concentrates, in particular in a single apparatus, in which a filtrate and a solids concentrate are dynamically separated from the solids-containing fluid as a continuous process. A concentrating and washing apparatus for washing impurities in the concentrate.

The concentrating and scrubbing apparatus of the present invention consists of a unitary housing comprising a solids separation, i.e., both a concentrating chamber and a solids or concentrates cleaning chamber. The housing is provided with an inlet for continuous supply of solids-containing fluid into the previously separated and concentrated chambers. In the separation chamber, a dynamic filter device is provided to separate the solid-containing fluid into the solid and the fluid and to form a solid concentrate and a filtrate. The filter device includes a plurality of stationary filter elements installed in the electrical housing and a plurality of rotor elements mounted on the rotor material shaft, that is, the rotor. The rotor element is composed of, for example, a disk that extends radially outward from the rotor and alternately arranges a plurality of rotor elements and a wheel element.

This cleaning chamber has a stationary filter element alternately arranged in the housing in the form of a filter device and a rotor element mounted on the rotor material shaft, that is, the rotor.

The cleaning chamber is introduced with a cleaning fluid to remove impurities in the electrical concentrate and dynamically mixed with the concentrate. The cleaning fluid is introduced, for example, as a fluid for dissolving impurities in the concentrate or as a fluid for diluting a liquid containing impurities in a dissolved state. This diluted liquid is removed by the following filtration process. This results in a cleaning cycle by adding a cleaning fluid that dilutes the liquid to filter out the diluted material and thereby achieve so-called cleaning. In other words, what is called a washing | cleaning fluid can also be considered as a diluent with respect to a supply liquid or a fluid. The diluted feedstock is separated again through at least one filtration process, thereby lowering the concentration of impurities remaining in the concentrate.

Further, the apparatus of the present invention is provided with a means for removing the filtrate from the filtration device of the concentration chamber and a means for removing the cleaning fluid from the washing chamber.

In one embodiment of the present invention, the cleaning fluid is continuously injected at the front end of the cleaning chamber, i.e., at the single injection point upstream, and the cleaning fluid is continuously discharged downstream from the concentrate as impurities. In another embodiment, a fresh rinsing fluid is continuously injected near the exit of the rinsing chamber, mixed with the concentrate, and the rinsing fluid contaminated with impurities from the concentrate is extracted from the partition chamber of the rinsing chamber and upstream thereof. Refill into the cleaning compartment of

As described above, the cleaning fluid is continuously extracted and re-injected, and gradually is refluxed to the front end of the cleaning chamber, that is, the upstream end to extract and dispose of the most contaminating cleaning fluid at the upstream end. In another example, the plurality of division chambers of the cleaning chamber are discharged in parallel with the continuous injection of fresh cleaning fluid.

Various types of filtration devices have been proposed as a device for concentrating solids in a conventional fluid. For example, U. S. Patent No. 3,437, 208 shows a device for transporting a solids-containing fluid through a wheel surface of the hollow filter member assembly and allowing a portion of the fluid to pass through the electrical wheel surface to enter the structure of the supporting filter member. . In the apparatus, the fluid is continuously taken out into the filtrate, and the solid remaining on the filter surface during the filtration process is continuously returned to the solid-containing fluid to increase the concentration of solids in the filtration apparatus, thereby forming a concentrated slurry. Is removed from the filter. U. S. Patent No. 3,437, 208 also describes a series of filtration and cleaning processes using three separate filtration vessels interconnected by conduits.

Each filtration device has a hollow side so that the filtrate from the first container can be taken out by the hollow side of the first filtration device, and the first side is provided with a hollow side for discharging the cleaning solution as waste liquid. The cleaning solution discharged from the third container through the hollow side of the container is collected in the second container and is discharged into the waste liquid through the hollow side of the second container. Fresh cleaning liquid is added to the inlet of the conduit which is connected to the second vessel and the third vessel and conveys the discharge slurry from the second vessel. This US patent requires the installation of a partition plate in the container and a hollow side with independent channels for carrying out the filtrate and cleaning solution in order to accommodate the device in one common container.

U.S. Patent No. 1,264,635 discloses a filtration and rinsing apparatus using six individual filterta units.

In this device, three of the six filter units are used to separate the sludge and the filtrate, and the remaining three units are used as the scrubber to clean the sludge. The scrubber units are arranged in series so that they can receive all the sludges from the filter-uniques A, A _{1 and} A ₂ of the three first scrubber units. The cleaning solution of the scrubber unit 1 is supplied by the liquid discharged from the scrubber unit 2. The cleaning solution discharged from unit 2 and supplied to unit 1 is in unit 1 and is added to the unfiltered fluid through filter units A, A _{1 and} A ₂ .

On the other hand, the sludge drawn out from the washing unit 1 is sent from the washing unit 3 to the washing unit 2 together with the washing solution. The sludge from scrubber unit 2 is supplied to scrubber unit 3 together with fresh washing water, where the sludge is discharged, but the washing solution is recycled and added to the sludge from scrubber unit 1 and sent to scrubber unit 2.

In contrast to the aforementioned U.S. Patent Nos. 3,4437,208 and 1,264,635, the device of the present invention is a unitary device housed in one housing and has a hollow body with independent channels for carrying out filtrate and cleaning liquids as in U.S. Patent No. 3,437,208. The need to install the side and the cost can be avoided. In other words, the apparatus of the present invention, unlike US Patent No. 3,437,208, does not require partition walls for partitioning each separation chamber and the cleaning chamber. Instead, it uses a dynamic means on a rotating disc provided between each of the filter elements and the filter elements. Have It differs from U.S. Patent No. 1,264,635 which compresses the charge material between two oppositely rotating wheel disks and deposits the concentrate as sediment at the bottom of the device. Concentrates are produced continuously as the filtrate is removed from the fluid while advancing through the concentration and scrubbing chambers.

In addition, various means are known for washing solid matter deposited on the surface of the filtration membrane in the filtration apparatus. For example, the filtration apparatus may be periodically disassembled to remove the filtration membrane and then washed. Alternatively, the filtration apparatus may use a counterflow method to clean the solids deposited on the filtration surface. The counterflow method, for example, is accomplished by forcing water into the hollow filter and passing it through the filter and through the membrane.

Another way is to form a wheel cake in the centrifuge device as described in US Pat. No. 1,000,540 by separating the solids and the filtrate by centrifugation. In this method, after the filter cake is formed, the filter water is washed by rinsing the wheel cake by rinsing the water cake in the centrifugal apparatus through a valve or a pipe which sends a feed material to be centrifuged, and then disassembles the machine. Is removed from the machine. This series of cleaning processes is a discontinuous process and requires stopping and separating the machine.

Other examples of such discontinuous processes can also be found in US Pat. Nos. 1,920,126 and 3,108,951. That is, US Patent No. 1,920, 126 separates solids, such as wax, contained in wax-containing mineral oil into a filtera fures, and after the filtera cake is formed, the solids are washed with a solvent added in the filterapures. The addition of this solvent is continued until the cake is washed off completely.

The fures are then opened to remove the cake. In addition, US Pat. No. 3,108,951 discloses that when a cake is formed in a centrifugal separator, washing water is added and passed through the cake by centrifugal action to wash away the cake.

There is also known an oil refining device in which oil-containing liquids are pushed through a plurality of screens and thereby crush the liquid to separate impurities from the liquid, as shown in US Pat. No. 956,065.

The apparatus is also equipped with means for adding gas, air or other liquids to achieve the liquid purification process. U. S. Patent No. 3,346, 418 also describes a method for washing off impurities from clay or jerry-like materials by continuously adding and discharging a liquid medium that acts as a solvent for impurities.

In this case, the discharge of the liquid medium consists of passing the liquid carrying the granular body through the porous chub wall.

In addition, a method of separating or extracting soluble impurities from a solid is known by passing the solvent in a reverse direction through the solid.

Such methods as described, for example, in U.S. Pat. It is collected by adding in sequence of the preceding step of the extraction process. This solvent addition method acts to extract the soluble material by passing the solvent in the opposite direction through the soluble material while sequentially passing the solvent into the device.

As described above, various methods and apparatuses have been proposed for separating and washing off solids or for extracting solubles from solids. An apparatus for forming a concentrated concentrate in a solids-containing fluid by a continuous process of steadily separating, concentrating and washing solids in a solids-containing fluid is not known until now.

It is an object of the present invention to provide a single device that separates solids-containing fluids into solids-mediated fluids or filtrates to form concentrates and to wash away impurities from solids concentrates.

It is an object of the present invention to continuously collect solids of a solids-containing fluid by using an integrated continuous operation filtration device having a rotating disc member for stirring the concentrate and a stationary filter material serving to remove the intermediate fluid or filtrate and cleaning liquid. It is to provide an apparatus for separating, concentrating and washing.

It is a further object of the present invention to provide a unified device which is capable of continuously washing solid concentrates at the same time separating solids from the solids-containing fluid and continuing cleaning of the concentrates after separating the concentrates and fluids. .

It is still another object of the present invention to separate a solids-containing fluid from a medium fluid or a filtrate and a solid concentrate, and to separate the separated concentrate from a medium without using a hollow rotor having separate pipes for conveying the filtrate and the washing liquid. It is to provide a dynamic device that can be cleaned by the cleaning fluid.

In other words, the present invention provides a thickening and cleaning apparatus having separate thickening chambers and washing chambers in a single housing. The electrical housing is provided with an inlet for introducing the pressurized solids-containing fluid into the concentration chamber. An outlet for discharging the concentrated slurry of the washed solids from the concentrated washing apparatus is installed in the electrical housing downstream of the washing chamber.

In addition, at least one inlet is provided in the housing to introduce the cleaning fluid into the cleaning chamber. At least one stationary or rotating filter element is provided in the concentration chamber and the cleaning chamber. Each filter element has at least one filter element surface material and a suitable drainage system for discharging the filtrate (if disposed in the concentration chamber) or the cleaning fluid (if disposed in the wash chamber). A rotating disc or a stationary disc is disposed between each of the filter members and the filter members. The rotor including the shaft mounted on the longitudinal axis coaxially with the electric filter element is installed in the concentration chamber and the washing chamber. When the electric filter is designed to rotate, the electric disc member may be mounted on the stationary housing to serve as the stationary member. Alternatively, when the filter element is mounted as a stop member, the disc member may be mounted on the rotating shaft.

The cleaning fluid is introduced into the housing and then dynamically mixed with the concentrate in the cleaning chamber to dissolve soluble impurities in the concentrate, for example. At the same time, the cleaning fluid dilutes the impurity containing fluid present in the cleaning chamber. The diluted liquid or fluid can be discharged through a filtration process by a filter element, thereby reducing the amount of residual impurities in the fluid which subsequently imparts a liquid fraction to the concentrate. The washing fluid outlet provided in the housing of the concentrated washing apparatus discharges the cleaning medium mixed with the first medium fluid or liquid containing the impurity of the supply fluid from the housing as described above. The present invention can be used to wash hydrochloric acid or alkali in the concentrate. Alternatively, for example, it can be used with a suitable solvent to wash away organic substances such as tar-tar from the concentrate.

In one embodiment of the present invention, a split rotary shaft is installed in the concentrating and washing apparatus configured as a single body, and the rotary member of the concentrated portion is connected to one drive motor, and the rotary member of the washing portion is connected to a separate drive motor. This configuration can provide power that can be controlled at least independently for the rotating member of the apparatus portion having a high concentration of solids of the substance to be treated and therefore high in viscosity and flow resistance. For example, a single motor can be used to give different rotor speeds to the concentrating and cleaning parts of the device via suitable transmissions.

In another embodiment of the present invention, a plurality of rotary discs are arranged in a condensation and cleaning device alternately coaxially with the plurality of filter elements and the rotary element. The filter element is a hollow structure that allows free passage of the filtrate and the cleaning fluid. The fluid containing solids is arranged by alternately arranging the wheel rotor and the rotating disk, installing a plurality of vanes or wings on the surface of the disk, and protruding the vanes in the transverse direction almost in the longitudinal direction of the rotor toward the filter surface of the adjacent rotor component. The liquid is advanced through the concentrating chamber of the concentrating and washing apparatus by passing sequentially from the partition chamber formed between each adjacent filter element and the filter element to the downstream partition chamber. While the solids-containing fluid is advanced through the concentration chamber, the medium fluid, or liquid fraction, is continuously removed as a filtrate in the fluid, and the concentrated solids are slowly dried as the medium fluid is filtered out. This dried material may have removed fluid but may contain insoluble or soluble impurities. In order to remove such impurities, a cleaning chamber having an injection hole is provided between the original plate and the filter element. Injecting solvents or cleaning fluids into the separation chamber of the cleaning chamber, and the forces applied to the concentrate by the rotating disc and the stationary filter element to determine the meandering path for passing the concentrate In addition, an electrical solvent or cleaning fluid is sufficiently incorporated into the concentrate to dissolve the soluble impurities in the concentrate. Thus, the contaminated cleaning fluid is discharged through the cleaning fluid outlet of the filter through a drain pipe connected to the next filter element, which is downstream from the electric inlet.

The impurity-containing liquid already existing in the cleaning chamber is also mixed with the cleaning fluid and diluted as described above and discharged. Thus, the first dried concentrate is supplied with the cleaning fluid added through the cleaning fluid inlet, and the liquid is added again to remove the cleaning fluid from the solid by the filtera element when passing over the filter element.

As described above, once the concentrate is temporarily supplied with the liquid again by the cleaning liquid, the concentrate is returned to the dry state by the filtration of the next filter element in the cleaning chamber. Introducing a cleaning fluid thereon at the same rate as it is discharged results in a continuous process that cleans the treated concentrate but does not dilute it. In other words, a concentrate is obtained which is composed of a solid material supported in a clean fluid which does not substantially change the mass of the mixture of solid and liquid in the concentrate. And concentrates that have been cleaned and diluted by again using a cleaning fluid capable of dissolving undesirable solid components in the concentrate or a cleaning fluid that chemically reacts with such undesirable solid components to produce a liquid or gas. Can be obtained.

Depending on the conditions of the feed material, the inlet and outlet of the solvent, ie the cleaning fluid, may be added to each one, or may be two or more. In order to completely remove the added cleaning fluid, in order to completely remove the added cleaning fluid, the cleaning fluid is added to the material to be treated, and then the material is conveyed through one or more steps, that is, the separation chamber, It is necessary to gradually remove the additive fluid through the filter element.

The cleaning fluid removed in the cleaning chamber may be discarded depending on the type and condition of the material to be treated and the nature of the impurities, and may be sent back to the cleaning chamber to be reused as the cleaning fluid or the feed material. If necessary to dilute, or fluidize, the used cleaning fluid may be added to the feedstock in the concentrating chamber of the apparatus. Thus, as an example, the cleaning liquid is recycled to the preliminary washing step in the cleaning chamber, i.e., the separation chamber, to reuse the cleaning liquid and discharge it from the concentrate by the next filtration process. In other words, a cleaning liquid that is more contaminated than when originally introduced into the apparatus, but still capable of dissolving impurities, is injected again into the apparatus and introduced into a prior, ie, upstream, highly concentrated concentrate in the cleaning chamber.

Thus, by gradually supplying the cleaning fluid from one step to the upstream step, the cleaning fluid can be continuously recycled and repeatedly used, and in parallel with this, the cleaning fluid is released from the concentrate to remove soluble impurities. Cleanse

In summary, the apparatus of the present invention comprises the following techniques, including techniques for separating solids from solids-containing fluids and mixing liquids or fluids to reduce impurities as described above, namely dilution techniques and techniques for dissolving impurities in solids. The solids are washed off by using one or more than one of several processes.

1. Inject a significant amount of fresh cleaning fluid at a single midpoint in the cleaning chamber where the concentrations are almost dry, thereby being re-wet by the electrical cleaning fluid in several stages downstream of the electrical injection point, i.e. Concentrates, squeezing or undesired impurities washed off by the fluid during the redrying process, for example, in the cleaning chamber via the cleaning fluid drain in each downstream chamber. Draining technique

2. Inject a limited amount of fresh cleaning fluid at a point substantially equal to the intermediate point and a plurality of points sequentially downstream therefrom, and substituting substantially the entire amount of the cleaning fluid injected at each point to the next injection point. Scrubbing process, which removes from the solids room with undesirable impurities extracted by the fluid before squeezing out of the solids, thus alternating rewetting and redrying with a small amount of the concentrate

3. Inject a limited amount of fresh rinsing liquid at a point close to the concentrate outlet of the rinsing chamber at which the concentrate reaches a desired degree of dryness and at least one other operating stage in the rinsing chamber. Squeeze out the fluid and the unwanted material extracted therefrom and drain the somewhat contaminated cleaning fluid squeezed from the concentrator to inject the contaminated cleaning fluid into the cleaning chamber in at least one compartment upstream of the initial injection point. Contaminated cleaning fluid is squeezed out of the following compartment and discharged from the cleaning chamber at an upstream point than the initial injection point to inject more contaminated cleaning fluid into the cleaning chamber in at least one separation chamber upstream than the second injection point. In this way, the cleaning fluid, which has become increasingly contaminated in this manner, is formed in a countercurrent relationship with the flow direction of the feed material. Techniques for reflux.

The objects, advantages and features of the present invention will become more apparent from the following detailed description.

Referring to the drawings, the concentrating and washing apparatus 11 shown in FIG. 1 is composed of a complex or assembly housing 12 that defines a concentration chamber 14 and a washing chamber 38 therein. End plates 16 and 18 are provided at both ends of the concentrating and washing apparatus 11, and inlet 20 is provided at the front end plate 16 and outlet 22 is installed at the rear end plate 18. And the spigot at outlet 22 may, for example, mount a manual control valve 24 to control the flow of feedstock from the outlet spigot.

In the housing shown in FIG. 1 there is a series of spacer rings 26 in which one annular side 28 of each ring is welded to a filter 30 adjacent thereto and the other annular side 32 is welded to the other side adjacent thereto. It is bonded to the element 30. Arrange each spacer ring 26 and the filter element 30 alternately, define the outer walls of the concentration chamber 14 and the cleaning chamber 38, remove the filter element 30 installed near the rear end plate 18, and attach one spacer ring 26 to the filter element 30 Form an integral assembly of element 30 and spacer ring 26.

As shown in FIG. 1, the cleaning fluid inlet 40 is provided through the spacer 26 in the cleaning chamber 38 surrounded by the housing 12 of the concentrating and washing apparatus 11 as in the concentration chamber 14.

Depending on the type of material to be treated and the operating characteristics of the concentration scrubber, a single or a plurality of inlets 40 may be provided in the cleaning chamber 38 downstream of the concentration chamber 14. The solids-containing liquid or solids-containing fluid material supplied to the condensation and scrubbing device 11 through the inlet 20 may first be able to remove a significant amount of the intermediate fluid through the filtera element 30 in the concentrating chamber 14 to be dried or concentrated. The resultant concentrate is then sent into the cleaning chamber 38, where it passes through the cleaning fluid inlet 40 in the cleaning chamber, where it is diluted or re-liquefied by the cleaning fluid dispersed through the inlet. To grant).

The concentrating and cleaning device 11 of FIG. 1 has a rotor shaft 34 that extends through the front end plate 16 of the housing 12 into the apparatus and extends in the cleaning chamber 38 at a point away from the rear end plate 18. In the enrichment chamber 14, a plurality of radially extending elements 60 (members radially spread like discs, which will be called radial elements in the future) are rotated by the key 62 so as to rotate together with the rotor side 34. Secure in. The radial element 60 is a non-hollow structure and is alternated with the wheel element 30.

The concentrating chamber made by the front end plate 16 and the rear end plate 18 of the device, the radial elements 60 other than the radial elements 60A and 60B installed near them, are integrally assembled with the wheel drive element 30 and the spacer ring 26 and the surface of the wheel drive element 30 adjacent thereto. We install in division room of 14 or washing room 38.

Each radial element including 60A and 60B is generally disk shaped and its outer diameter is smaller than the inner diameter of the spacer ring 26 concentric with it. Again, each rotating resource group 60, 60A, 60B was axially isolated from the adjacent end walls 16, 18 or Filata elements 30, 30A, 30B. This gap forms a flow path for the solids-containing fluid from the inlet spicott 20 to the outlet spicott 22 through the concentration chamber 14 and the cleaning chamber 38. This flow path is a meandering flow path as indicated by the arrow in FIG.

Mount drive rod 46 on housing 48 outside housing 12. The drive collection 46 is also connected by the V-belt 50 to the speed control transmission 52 mounted on the frame 48, while the transmission 52 is fitted to the rotary shaft 34 of the concentrating and scrubbing device 11 by fitting appropriate bearings and seals. To the driven drive shaft 54. The rotor shaft 34 can be driven at a predetermined speed by the gather 46 and the transmission mechanism 52. The transmission mechanism may be a manual operation type.

As shown in FIG. 5, each radial rotor element 60 is fixed by welding to a collar 56 mounted on the rotor shaft 34. Each rotor element 60 is provided with four or more blades or blades 58,58A arranged at equal intervals on both surfaces thereof. These vanes or vanes protrude from the respective radial surfaces of the rotor element toward the rotor element 30 adjoining it when the rotor element is mounted at a predetermined position in the housing 12 of the concentrating and cleaning device 11. Wings 58 and 58A are close to collar 56 but extend curved in the outer periphery of the rotor element at point 70 isolated therefrom. In the case of any of the rotor elements 60, they are arranged so as to be in a mirror relationship with the curve of the blades 58 provided on one surface of each rotor element and the curve of the blades 58A provided on the other side. As for the mounting state with respect to the rotor shaft 34 of each rotor element 60, the direction of the movement given to the solid-containing fluid engaged by the wing blades 58, 58A of each rotor element is the direction of the flow path in each side of the rotor element. Match with the direction of movement (indicated by the arrow in FIG. 1). Thus, the vane on one surface of the rotor element 36 in the predetermined direction of rotation causes the fluid to flow outward in the radial direction of the rotor element. The rotor element 36 is mounted in the housing so that the direction of induction of the fluid coincides with a predetermined flow path proximate each of the pellets.

As shown in FIG. 1, the feathers 58 and 58A protrude in the lateral direction (axial direction) toward the adjacent Filater element 30 or the end plates 16 and 18. As shown in FIG. As shown in FIG. 5, each rotor element 60 protrudes four fluid passages 64 at equal intervals along the collar, i.e., the inner periphery adjacent to the hub 56. These passages 64 pass a portion of the solid-containing fluid in the concentrating chamber 14 through the rotor element itself, separate from the meandering path around the outer periphery of each rotor element 60.

In another embodiment of the present invention, the passage 64 may be omitted, and instead the passage of the fluid elsewhere in the rotor disc, for example, near the outer periphery, may alter the flow path imparted to the solids-containing fluid by the rotor element. .

Each filter element 30 in the concentration chamber 14 and the cleaning chamber 38 consists of an annular disc as shown in FIGS. 2 and 3 with an opening 66 for inserting the rotor shaft 34. The opening 66 is large enough to allow the flow of solids-containing fluid between the inner periphery of the wheel drive element and the outer periphery of the rotor shaft or the outer periphery of the collar 56, i.e. the collar 56. Each filter element 30 is mounted by replacing a pair of teeth 67 in a radial direction. These pieces 67 constitute a mounting member for vertically supporting and aligning each of the wheel elements on a horizontal parallel rail (not shown) of the frame supporting the housing 12. A plurality of concentrically spaced grooves 68 and outlets 82 having a plurality of concentrically spaced grooves 68 and outlets 82 are provided on both surfaces of the wheel disc 30, respectively, and formed in connection with the longitudinal direction of the hole 90. It communicates with each groove 68 through a plurality of passages or openings 72. On each of the grooved surfaces of each filter element, for example, a wheel surface is formed by a wheel tarpaulin made of polyester material.

The configuration details of such a filter element are referred to in FIG. 5 of the applicant's U.S. Patent No. 3,884,805.

As shown in FIG. 1 and FIG. 3, the outlet 82 of the radial hole 90 is in communication with the drainage pipes 84 and 41 which respectively protrude into separate collection tanks 86 and 86 '. The filtrate collection tank 86 for the concentration chamber 14 has a discharge nozzle 88 protruding outside the concentration and scrubbing unit 11 for discharging the filtrate. Install valve 92 to control the flow of filtrate from the associated bath. The collection tank 86 'for the cleaning chamber 38 also has a discharge nozzle 88' and a control valve 92 '. In this way, two separate filtrate collection tanks 86,86 ', which are isolated from each other, are provided that the fluid flowing out of the drain pipe 84 is substantially a medium fluid (the medium fluid in the solid-containing fluid as the feed material). A cleaning fluid, a mixture of impurities dissolved in it and some residual media. In order to recover and reuse at least one of the two types of fluids, it is desirable to set their substantially different discharge liquids aside.

4 shows another embodiment of the present invention. In this embodiment, a plurality of cleaning fluid inlets 40,40A are provided for refluxing the cleaning fluid to one of the cleaning stages of the cleaning chamber 38, that is, the upstream cleaning stage adjacent to the cleaning compartment 36 in the opposite direction to the supply fluid. And 40B are disposed at intervals in the longitudinal direction of the concentrating and washing apparatus and communicated in the washing chamber 38. In this embodiment, the drain pipes 41, 41A are connected to each of the filter elements 30, the pumps 42, 42A, 42B are installed on their drain pipes, and the washing liquid is recycled to each adjacent upstream division chamber 36. In operation, fresh cleaning fluid is added to the concentrate of the cleaning chamber through inlet 40A closest to the concentrate outlet of the device with valve 94 to control the flow of cleaning fluid. This newly added cleaning fluid, like the intermediate fluid and other fluids still present in the concentrate, is discharged through the drain pipe 41A through the last Filtera element 30B in the cleaning chamber. This mixed fluid is aspirated by pump 42A and sent through pipe 43 to inlet 40B located immediately upstream of fresh wash fluid inlet 40A.

As shown in FIG. 4, the cleaning fluid re-injected in the inlet 40B is extracted through the upstream drain 41 above the drain 41A, injected through the inlet 40 into the next pre-cleaning chamber 36 by 42B. It is extracted through the drain pipe 41 associated with the pump and injected into the next preliminary washing compartment by the pump 42. In this way, the cleaning fluid is circulated in turn.

The process of injecting, mixing, filtering, discharging, pumping and reinjecting the cleaning fluid may continue as necessary, and the amount and discharge of the cleaning fluid may be concentrated at the type of material to be treated or at the point of inflow into the cleaning chamber 38. It can control suitably according to the state of water. The cleaning fluid finally discharged near the upstream end of the cleaning chamber through the drain pipe 41B and the control valve 92B may be disposed of, or may be treated to recover impurities in the fluid, or may be treated to recover the fluid itself.

As shown in FIG. 3 and FIG. 4, the radially inner bore 90 and the outlet 82 of the filter element in the cleaning chamber are drain pipes 41, 41A,. And pumps 42, 42A, 42B and the like. The cleaning fluid removed through the filterta element 30B is sent to the inlet 40B via pipe 43 where it is recycled and incorporated into the concentrate down the inlet. The injected cleaning fluid mixes with the liquid or fluid already present in the concentrate to dilute it and is removed by the downstream filter element 30, which approaches inlet 40B, and has a suitable bore 90 outlet 82, drain pipe 41 and pump 42A. Is recycled within the following pre-cleaning compartment. Thus, the cleaning fluid can be repeatedly used during the operation of the apparatus by a recycling process in which the cleaning fluid is sequentially sent upstream through each cleaning compartment. The concentrating and washing apparatus of FIG. 4 is equipped with a split rotor shaft 34 and connects each part of the divided rotor side to a separate drive motor. That is, the drive motor M of the rotor shaft part in the concentration chamber 14 and the drive motor M 'of the rotor shaft part in the cleaning chamber 38 are separate. The two parts of the rotor shaft 34 are connected to each other by suitable bearings to face each other by facing each other in cross section and cross section of each side. By using separate drive mechanisms for the two parts of the rotor shaft, the two parts of the rotor shaft give different rotational speeds so that the concentration and cleaning functions of the device can be independently controlled and adjusted.

Next, the operation of the present invention will be described based on the embodiment of FIG. The solids-containing fluid is pumped from the pump 19 to the inlet throttle 20 of the concentrating and scrubbing device 11 and at the same time the rotor shaft 34 is rotated by the drive motor 46. As a result, the radial rotor element 60 and its vanes 58, 58A rotate so that most of the fluid introduced therein is first dispersed around the first rotor element 60A and then between each stationary rotor element 30 and between them. The flow paths flowing toward the rotor element 60 and the concentrate outlet 22 are mixed and flown while meandering around each of the rotor elements 60 outlined in FIG. At the same time, a part of the solid-containing fluid flows through passage 64 of the rotor element 30 (FIG. 5). As the solids-containing fluid sequentially moves through each of the filter elements 30 present in and near the flow path, they pass through the filter element surface material of each filter element as its intermediate fluid region and pass through the radial holes 90 and the outlet 82. It is discharged from the inside of the device and enters the discharge liquid collecting tank 86 where it is collected through the discharge nozzle 88.

The solids-containing fluid flowing through the concentrator 14 is treated sufficiently to form a slurry of the desired concentration, for example a slurry having 50% solids, and then the concentrate is cleaned in the condensation unit of the monolithic and scrubber. . Even though the filtrate is removed from the feed fluid by passing the feed fluid containing the solids through the concentration chamber, the concentrate may still contain undesirable fluids or particulate impurities. Water can be used as a cleaning fluid to remove salts from the concentrate, and a suitable solvent can be used to flush out organic contaminants such as alkalis, acids or ta-ru from the concentrate. In order to dissolve the impurities or contaminants, a reactant which chemically reacts with the impurities to form a liquid or gaseous fluid instead of the solvent may be used as the cleaning fluid. In this case, the fluid formed by the chemical reaction can be removed together when removing the contaminated cleaning fluid, and is easier than removing the impurities in their original form. Of course, the above dilution and dissolution or chemical reaction can be combined.

The cleaning fluid added to the cleaning chamber 38 of the concentrating and washing apparatus 11 is passed by the action of the rotating resource plate element 60 and its wings 58 and 58A in the cleaning chamber, mixed with the concentrated slurry and mixed by the cleaning fluid. It reacts with impurities or contaminants to dilute the impurities or contaminants. The cleaning fluid mixed in the concentrate added through the inlet 40 (FIG. 1) or 40A (FIG. 4) is then diluted or dissolved in the cleaning chamber 38 by passing through the filterta element 30 and draining through the drain pipe 41. Or reaction insoluble material is removed and removed. The cleaning fluid in a somewhat contaminated state is collected in the cleaning fluid collection tank 86 'as in the embodiment of FIG. 1 or discharged from the final drain pipe 41B as in the embodiment of FIG. The preceding group is lost and fed through the pump groups 42, 42A, 42B and the pipe groups 43, 43A, 43B. In the latter case, the addition, circulation and discharge of the cleaning fluid may be achieved by using control valves and pressure pumps 42, 42A, 42B, etc., connected to the recirculation pipe group 43 interconnecting the respective compartments 36 of the complex cleaning chamber 38. . Alternatively, the pump groups 42 and 42A for the pipe group 43 can be performed by a vacuum pump of an adjustable material which can be used to change the filtrate discharge flow rate from the filter element and to control the recycle amount of the cleaning flow rate.

While continuing the operation of the concentration and scrubber 11, the newly pressurized solids-containing fluid is continuously supplied from the pump A through the inlet spicott 20 and the filtrate separated from the fluid is continuously drawn out through the filterta element 30 and the drain pipe 84. Fresh cleaning fluid is continuously supplied to the cleaning chamber 38 of a single assembly at the inlet 40 (FIG. 1) or 40A (FIG. 4), and the contaminated cleaning fluid is discharged to the drain pipe 41 (FIG. 1) or 41B (FIG. 4). Through). The cleaned concentrated thrush is discharged continuously through outlet spicott 22 and control valve 24.

The amount of fluid supplied to the inlet spicott 20 is controlled by a suitable control for the pump 19. The supply amount of the cleaning fluid to the cleaning fluid inlet 40 (FIG. 1) or 40A (FIG. 4) is determined by the set value of the control valve 94.

The discharge of the concentrate is controlled by adjusting the above-described control valve 24 installed in the discharge pipe 22. The valve 92 controls the flow rate of the medium fluid in the collection tank 86, and the valve 94 controls the supply amount of fresh cleaning fluid to the cleaning chamber 38. Thus, during operation of the unit, their valve setpoints control the concentration of slurries from the unit and ensure that the overall balance is such that the outflow of the concentrated concentrated slurries is equivalent to limiting the amount of filtrate through valve 92 at the supply level of pump 19. maintain.

As each filter element 30 and the spacer ring 26, a series of washing | cleaning division chambers 36A, 36B, 36C, etc. are formed in the washing | cleaning chamber 38 of the whole. That is, both surfaces of each division chamber are partitioned by the filter surface of the filter element 30. One or more cleaning fluid drainage pipes may be provided in one or more cleaning fluid drainage pipes so as to increase the pressure of the cleaning fluid, i.e. the filtrate, by increasing the pressure value between the inner and outer surfaces of each filter surface material in the apparatus.

자형으로 소자와 하우징 12의 내면과의 사이를 통한 다음 소자 60A와 휠타소자 30A와의 사이를 소자 60A의 한류측면에 연해서 반경방향의 안쪽으로 이동한다. 다음에 유체는 휠타소자 30A와 회전자축 34와의 사이에서 소자의 내연을 주회하여 휠타소자의 하류측면과 제2회전자원판소자의 상류측면과의 사이를 반경방향외쪽에 흘려 원판소자의 외주연을 주회하여 순차로 사행유로를 따라 전진하고 고형물의 농축을 증대시키면서 농축실내를 통과한다. 이 농축된 스러리가 장치의 세정실 38에 달했을 때는 최초 함유되었던 매개 유체의 대부분은 없어지며 이것을 ＂건조되었다＂라고 말한다.As shown in FIG. 1, the fixture-containing fluid in the concentrating and washing apparatus 11 is in the concentrating chamber 14 so as to revolve around the rotor element 60A.

It moves between the device and the inner surface of the housing 12 and then moves radially inwardly between the device 60A and the filter element 30A to the current-limiting side of the device 60A. The fluid then circulates the inner edge of the element between the rotor element 30A and the rotor shaft 34 and flows radially outwardly between the downstream side of the rotor element and the upstream side of the second rotary resource plate element so that the outer periphery of the disc element is reduced. Round and proceed sequentially along the meandering passage, passing through the concentration chamber, increasing the concentration of solids. When the concentrated slurry reached the unit's cleaning chamber 38, most of the original median fluid was lost and was said to be “dried”.

The concentrated slurry flows through the cleaning fluid inlet 40 into the slurry as it rotates around the outer periphery of the first rotating resource plate 60 of the cleaning chamber. Thus, a desired purification of the concentrate is achieved, including dissolving the soluble impurities of the injected cleaning fluid or chemically reacting with the impurities to thereby dilute the contaminants present in any liquid form. The cleaning fluid accompanying the contaminants is in the cleaning chamber 38. A series of filter oils is applied to the mechanical energy of the blades 58, 58A on both sides of the rotating resource plate 60 in which the concentrate is opened upstream between the pressure of the pump and the adjacent rotor element 30. As it is pumped into the device, it is sequentially discharged through a series of filter elements.

Concentration and cleaning of the feedstock (solids-containing fluid) takes place in a single housing, providing flexibility in that various operating conditions can be controlled during operation of the device of the present invention. For example, prior to cleaning (removing contaminants) the solids-containing fluid in the cleaning chamber 38, the fluid may be preconcentrated in the concentration chamber 14 (which is usually the case). That is, the medium can be substantially removed from the fluid. Alternatively, when the solid-containing fluid has a constant density (consistent), the cleaning fluid inlet may be installed in the spacer 26 of the housing 12 of the concentrating chamber 14, thereby injecting the cleaning fluid into the concentrating chamber. It can be mixed with the flowing solid-containing fluid to increase the fluidity of the fluid. Again, if the flow rate that introduces the cleaning fluid into the first few compartments in the cleaning chamber 38 equals the amount of fluid discharged through those compartment filter elements, the fluidity of the concentrated slurry is applied to several compartments after the cleaning chamber. It can be kept at the same level until it is reached and, if necessary, in several separate compartments, it is desired to have a concentration of solids of concentrate which will remove the fluid from the concentrate without adding fresh fluid and thereby finally discharge the concentrate from the housing. Can be raised to

In another modified embodiment, the cleaning fluid may be injected through the cleaning fluid inlets provided in some partition chambers instead of all the partition chambers of the cleaning chamber 38. In other words, at least two compartments are installed to block the compartments. In this case, the residual medium fluid is removed along with the contaminated cleaning fluid from the concentrated slurry, not only in the division chamber to which the cleaning liquid is added (i.e., the division chamber having the inlet), but also at least in the next downstream division chamber. Thus, the concentrate is washed in the same compartment by the added cleaning fluid and dried in the next compartment. That is, the concentrate, which still has high fluidity when flowing into the washing chamber 38, is gradually dried while being washed through the washing chamber, and dried and washed product concentrate is discharged at the outlet 22, compared to the concentrated slurry first introduced into the washing chamber. Discharge.

Because of the unique structure and operating characteristics of the present invention described above, the range of process parameters suitable for the thickening and cleaning apparatus of the present invention is large. For example, for certain concentrates, a significant amount of fresh cleaning fluid may be injected through inlet 40 at one upstream or midpoint of cleaning chamber 38. The concentrate at that injection point then reaches a predetermined dryness and, in addition to the added cleaning fluid, insoluble substances, such as salts, dissolved or diluted by the fluid may be downstream of the cleaning fluid injection point of the cleaning chamber 38. The two compartments may be discharged from the cleaning chamber through the filtera element 30 to thereby squeeze out the rewet concentrate and redry. Or inject a limited amount of fresh cleaning fluid through a series of inlets 40 (FIG. 4) into the concentrate, and when the concentrate reaches the next cleaning fluid inlet, substantially the entire amount of the cleaning fluid injected from each inlet. Until squeezed out of the concentrate, such as insoluble matter absorbed by the cleaning fluid to be discharged from the cleaning chamber. Thus, the cleaning operation of this embodiment consists of alternating processes of injecting a limited amount of cleaning fluid (i.e., rewetting the concentrate) and redrying.

In another mode of operation, the concentrated slurry can be injected with a limited amount of fresh cleaning fluid through inlet 40A (FIG. 4) near the concentrate discharge stage of the cleaning chamber that has reached its desired dryness. . The cleaning fluid is discharged through the filter element 30B in the division chamber 36 downstream of the injection port 40A, and the contaminated cleaning fluid is injected into the next division chamber upstream of the initial injection point.

By continuing this injection discharge and reinjection process, the cleaning fluid is refluxed in the opposite direction to the feed fluid through the concentrating and scrubbing apparatus and gradually contaminated.

In order to illustrate the applicability of the present invention to the treatment of various feedstocks, for example, in conventional rotary concentrators and scrubbers with solids concentrations above 50%, sufficient fluidity can be achieved without using excessive power. Consider the diesel oil supplied to the concentrating and washing | cleaning apparatus of this invention for the solid content fluid which it does not have. In this case, the cleaning fluid may be added to the first stage of the apparatus for improving the flowability of the feed material and at the same time to remove the impurities. On the contrary, when the solid content concentration of the material when it is first supplied to the concentrating and washing apparatus is 50% or more, it is preferable to concentrate the feed material again to wash the concentrate to remove impurities. If the solids concentration of the feedstock is in the range of 1% to 20%, which is relatively low, it is preferable to carry out substantial treatment in the concentration chamber of the feedstock and not add the cleaning fluid until the solids concentration is near 50%. In that case, almost all of the flowable impurities contained in the first feedstock are removed until they reach the first compartment of the cleaning chamber, so that non-flowable impurities remain in the cleaning chamber. When the flow rate of the cleaning fluid added into the cleaning chamber is matched with the flow rate of the filtrate from the associated cleaning compartment, the injected cleaning fluid initially acts to reduce the concentration of solids in the material to be treated, but soon after Since the cleaning fluid is discharged at the same rate as the injection amount, a constant concentration is maintained between one side and the other side of the cleaning separation chamber.

In the first few compartments of the concentration chamber, if you want to completely squeeze out the concentrated slurry, such as when it is desired to preconcentrate the feed slurry before entering the cleaning process without injecting the cleaning fluid, And it is preferable not to inject the cleaning fluid into the first one or two or more separation chambers.

In other operating conditions of the apparatus of the present invention, the cleaning fluid is injected into one of the separation chambers instead of all the separation chambers of the cleaning chamber. In this case, different solvents or different cleaning fluids may be injected into each compartment to dissolve or dilute other impurities in the concentrate in each compartment. A single pump with a suitable control valve may be used to supply the cleaning fluid to all the compartments of the cleaning chamber into which the cleaning fluid is to be injected.However, separate pumps may be used for each division chamber. It is advantageous in that it can work as a metering and control device for the cleaning fluids supplied to it, and by using individual pumps, one or more kinds of cleaning fluids can be used for their compartments.

As is clear from the above description, the present invention provides a monolithic concentrating and washing apparatus for continuously and dynamically separating thickeners and filtrates from solids-containing fluids and removing impurities from the concentrates. In the present specification, the same expressions of the Filta element and the Filta surface agent are used in connection with the description of the mechanical components and operating conditions of the concentrating and cleaning device of the present invention, but these expressions are used for convenience to describe specific components of the machine. In the claims or in the specification, these terms should be considered to have a general meaning. In other words, the term “wheel element device” should be considered to mean the wheel support surface for the wheel subtitle with a wheel surface (subtitle forming a wheel surface). The term “wheel surface element” means a wheel surface or wheel element It should be considered to mean a separate member or a uniquely integral part of the wheel support surface of the wheel device.

Each element described as a stop member or as a movable member in each of the above-described embodiments may be configured as a movable member or a stationary member, respectively, as long as the principles of the present invention presented herein are achieved. That is, it is possible to configure the filter element as a rotating subtitle and the rotor disc element as a stationary subtitle in the housing. In the same way, the angular elements described by the central or hollow structure can also be modified in design as long as the principles of the invention are incorporated into the overall structure of the device.

Claims (1)

Dynamic condensation and scrubbing system for separating the filtrate and concentrated slurry from solids-containing fluids and cleaning them with a cleaning fluid before discharging the concentrated slurry from the apparatus to a gastric body with a concentration chamber and a cleaning chamber. At least one flow path of the solids-containing fluid introduced into the electrical vessels through the first inlet, the first inlet being installed in the electrical housing and introducing the solids-containing fluid pressurized into the electrical vessels And partition at least one filter element into an electric thickening chamber so that the filter surface is allowed to penetrate the filtrate from the solid containing fluid in the electrical housing into the electric filter chamber and filter the filtrate from the electric concentrate chamber and the filter element. The outlet to form a concentrated slurry of the solids-containing fluid in the concentration chamber in the electrical housing At least one second inlet in the electrical housing and connected to the electrical carrier for connection to the wheel chamber and introduction of the cleaning fluid into the electrical gastric body to mix the cleaning fluid with the electroconcentrator in the gastric body In the flow path of the mixture between the concentrated slurry and the cleaning fluid, a wheel thread having at least one wheel surface agent is partitioned, and at least one second wheel element is mounted in the electric chamber, and the wheel surface is cleaned in the electric mixture. The fluid is discharged to penetrate into the electric filter chamber, and the cleaning fluid is discharged from the electric cleaning chamber and the second filter element, whereby a second outlet is formed in the housing to form a concentrated slurry cleaned in the electric housing. A third outlet for connecting to the device's wheel chamber and for discharging the electrically cleaned thickening slurry from the electrical housing. It is installed in the housing so as to communicate with the flow path, and the rotor which extends through the concentration chamber and the washing chamber in the electrical housing is installed on the longitudinal axis line of the housing freely to connect the driving device so that the rotor can rotate. The rotor is provided with at least two radially dissipating elements which are isolated from the fulcrum surface of each electric rotor element and are also substantially parallel and extend radially outwardly from the electrical longitudinal axis towards the surface of the electrical housing. And an outer periphery of the inner surface and the inner surface of the housing are separated from each other enough to form a flow path through which fluid flows.

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