CN120838006B - Chemical wastewater impurity filtering equipment - Google Patents
Chemical wastewater impurity filtering equipmentInfo
- Publication number
- CN120838006B CN120838006B CN202511331754.XA CN202511331754A CN120838006B CN 120838006 B CN120838006 B CN 120838006B CN 202511331754 A CN202511331754 A CN 202511331754A CN 120838006 B CN120838006 B CN 120838006B
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- China
- Prior art keywords
- sleeve
- sand
- fixedly connected
- filter tower
- chemical wastewater
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4668—Regenerating the filtering material in the filter by moving the filtering element
- B01D24/4673—Regenerating the filtering material in the filter by moving the filtering element using rotary devices or vibration mechanisms, e.g. stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
- B01D24/12—Downward filtration, the filtering material being supported by pervious surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
本申请提供一种化工废水杂质过滤设备，涉及化工废水过滤技术领域，包括过滤塔，过滤塔内侧壁中固定连接有隔砂板，隔砂板靠近过滤塔顶端的一端滑动连接有阻隔板，隔砂板的圆心位置固定连接有连接套筒，过滤塔的底端开设有进液口，连接套筒套设在进液口中，连接套筒中滑动连接有第一套筒，第一套筒的外侧壁上固定连接有外延杆，第一套筒中滑动连接有第二套筒，连接套筒上开设有和连接套筒内部连通的注水口，第一套筒的侧壁上开设有第一泄压孔，第二套筒上开设有第二泄压孔。本申请能够在反冲洗时对位于砂层中的砂团进行破碎，使砂团破碎，提高过滤效率。
This application provides a chemical wastewater impurity filtration device, relating to the field of chemical wastewater filtration technology. It includes a filter tower, with a sand-separating plate fixedly connected to the inner wall of the filter tower. A baffle plate is slidably connected to one end of the sand-separating plate near the top of the filter tower. A connecting sleeve is fixedly connected to the center of the sand-separating plate. A liquid inlet is opened at the bottom of the filter tower, and the connecting sleeve is fitted into the liquid inlet. A first sleeve is slidably connected to the connecting sleeve, and an extension rod is fixedly connected to the outer wall of the first sleeve. A second sleeve is slidably connected to the first sleeve. A water injection port communicating with the interior of the connecting sleeve is opened on the connecting sleeve. A first pressure relief hole is opened on the side wall of the first sleeve, and a second pressure relief hole is opened on the second sleeve. This application can break up sand clumps located in the sand layer during backwashing, thereby improving filtration efficiency.
Description
Technical Field
The application relates to the technical field of chemical wastewater filtration, in particular to chemical wastewater impurity filtering equipment.
Background
In the treatment of complex chemical wastewater, filtration equipment plays a critical role, and the main task of the filtration equipment is to remove insoluble solid particle impurities in water. In order to ensure that the subsequent treatment steps can be smoothly carried out and the overall treatment effect is improved, a key pre-step is to pretreat the chemical wastewater by using a sand filter. The sand filter is just like a precise 'filter screen', and can effectively intercept and remove suspended matters, possible microorganisms, partial organic matters and other impurities in the wastewater. In specific operation, the chemical wastewater is uniformly distributed on the filter material layer. The filter material is typically composed of particulate matter such as silica sand, which has a specific particle size and pore structure. When the wastewater slowly flows through the layer of filter material, impurities in the water can be captured by the filter material such as quartz sand and the like in a physical interception and chemical adsorption mode, and the water can pass through the heavy checkpoint. Through the process, the turbidity of the chemical wastewater is greatly reduced, the water quality is primarily purified, and a good foundation is laid for subsequent finer treatment.
Referring to the chinese patent document with publication number CN206434949U, the subject name is a novel pretreated quartz sand filter, the device is collected by discharging the precipitated impurities into an impurity storage tank through an impurity conduit, and the water to be filtered is evenly split through a split partition plate, so as to improve the filtering effect, and meanwhile, the water pump is controlled to work, so that the water spray head is used for flushing the quartz sand filter material, and meanwhile, the arrangement of the quartz sand filter material is changed in the flushing process, so that the filtering effect is improved.
According to the technical scheme, after a certain amount of chemical wastewater is filtered, a large amount of impurities are adhered to the surface of the quartz sand filter material, the impurities adhered to the quartz sand filter material are required to be washed, so that the impurities are discharged, at the moment, back washing is required to be carried out on the quartz sand filter material, the quartz sand filter material is accumulated in the filter layer when back washing is carried out, the quartz sand filter material layer is not easy to break up and clean when back washing is carried out, and the accumulation of the quartz sand filter material is relatively compact when cleaning, part of quartz sand filter materials are condensed together, and are difficult to break up in the back washing process, so that the cleaning efficiency is influenced.
Disclosure of Invention
In view of the above, the application provides a chemical wastewater impurity filtering device, which aims to solve the problem that sand clusters are difficult to treat in a sand layer.
The technical scheme includes that the chemical wastewater impurity filtering equipment comprises a filtering tower, a liquid inlet mechanism arranged above the filtering tower, a discharge hole formed in the side wall of the filtering tower and a water outlet formed in the bottom end of the filtering tower, wherein a sand separation plate is fixedly connected to the inner side wall of the filtering tower, one end, close to the top end of the filtering tower, of the sand separation plate is connected with a baffle plate in a sliding mode, a connecting sleeve is fixedly connected to the center of the sand separation plate, a liquid inlet is formed in the bottom end of the filtering tower, the connecting sleeve is sleeved in the liquid inlet, a first sleeve is connected in the connecting sleeve in a sliding mode and fixedly connected with the baffle plate, an epitaxial rod used for crushing a coagulated sand filtering layer is fixedly connected to the outer side wall of the first sleeve, a second sleeve is connected to the connecting sleeve in a sliding mode, a water injection hole communicated with the inside of the connecting sleeve is formed in the side wall of the first sleeve, a first pressure release hole is formed in the second sleeve, a second pressure release hole is formed in the second sleeve, and the first pressure release hole and the second pressure release hole are arranged in a staggered mode.
Through directly letting in liquid to the sand bed, improve the mobility of filter sand, make follow-up in-process filter sand and the area of contact of waste water that carries out preliminary filtration to chemical wastewater increase, make filtration efficiency increase, broken to the sand mass after having carried out the condensation simultaneously, reduce filtration resistance, improvement filter effect and efficiency.
Optionally, the feed liquor mechanism includes the feed liquor pipe of fixed connection in the filter tower top, the slip cap is equipped with the driven pipe in the feed liquor pipe, fixedly connected with water distribution pipe on the axial lateral wall of driven pipe, the water distribution hole has been seted up on the lateral wall of water distribution pipe, the water distribution pipe with driven pipe intercommunication, driven pipe with the feed liquor pipe intercommunication.
Through driving the water distribution pipe to rotate, the impact force of wastewater entering the filtering tower is reduced, and the sand layer for filtering is smoother.
Optionally, a strip scraper is fixedly connected to the lower position of the water distribution pipe, and the strip scraper is used for scraping solid impurities remained on the baffle plate.
During the operation of the filtering equipment, some tiny solid impurities can be gradually accumulated on the baffle plate, and the impurities can be accumulated on the surface of the baffle plate without being treated and move and accumulate towards the area far away from the circle center. A thick, dense impurity layer is easily formed. The thick layer can act as a barrier, greatly increasing the resistance to water flow, slowing down the flow and reducing the filtration efficiency. The solid impurities move towards the direction that the baffle plate is far away from the circle center, and are prevented from forming excessively thick accumulation, so that the relative cleanliness and smoothness of the surface of the baffle plate can be effectively maintained, the filtering resistance is obviously reduced, the smooth water flow is ensured, and the overall filtering efficiency is finally improved.
Optionally, sliding connection has seal sleeve in the inlet department of filter tower, seal sleeve's inside wall with connecting sleeve's lateral wall butt, seal sleeve's lateral wall and filter tower's inlet lateral wall butt, fixedly connected with sealing baffle on the seal sleeve, the spacer block has been seted up on the sealing baffle, set up the liquid outlet on the spacer block, the spacer block corresponds the liquid outlet sets up.
After a period of use, the sand particles gradually agglomerate into relatively tight agglomerates due to the trapped impurities and particles. Although the coagulation phenomenon can adsorb impurities to a certain extent, the resistance of water flow through the sand layer is also obviously increased, so that the filtration speed is reduced, and the efficiency is reduced. Through scattering the sand mass, the integral compaction degree of the sand layer can be effectively reduced, so that the resistance of water flow when passing through the sand layer is greatly reduced. The filtering speed is improved, the time required for treating the same water quantity is shortened, and the filtering efficiency is also improved. The broken sand mass is helpful for recovering and improving the pore structure in the sand layer, so that the pore distribution is more uniform and smooth. The filter device not only can effectively prevent the sand layer from losing the filtering capability too early due to partial blockage, but also can remarkably prolong the stable operation period of the whole filtering system. Because the permeability of the sand layer is improved, the system is not easy to be saturated quickly, and the number of backwashing times required to be carried out is greatly reduced.
Optionally, fixedly connected with reset spring on the sealing sleeve, reset spring keep away from sealing sleeve's one end with connecting sleeve fixed connection, reset spring is used for promoting sealing sleeve moves down, makes sealing sleeve to the feed liquor mouth with the communication disconnection of connecting sleeve inside wall.
The opening on the sand separation plate is cut off in the process of filtering the sand screen, so that liquid required for cleaning is reduced, the use amount of the liquid can be reduced, the generation of wastewater is reduced, the subsequent wastewater treatment pressure is reduced, and meanwhile, the cleaning of a sand layer is ensured.
Optionally, a limiting block is fixedly connected to the side wall of the filtering tower, and the limiting block is used for limiting the upward moving height of the baffle plate when the baffle plate moves upward.
Optionally, the one end fixedly connected with push spring that the second sleeve is close to the baffle, the one end that push spring kept away from the second sleeve is connected with first sleeve fixed, push spring is used for promoting the second sleeve moves down.
Optionally, the first pressure relief holes are axially arrayed on the first sleeve, and the diameters of the first pressure relief holes gradually decrease in a direction approaching the baffle plate.
Optionally, the second pressure relief holes are axially arrayed on the second sleeve, and the diameters of the second pressure relief holes gradually decrease in a direction approaching the baffle plate.
Optionally, the extension rod is arranged in a diamond shape.
In summary, compared with the prior art, the application has at least one of the following beneficial technical effects:
1. Through directly letting in liquid to the sand bed, improve the mobility of filter sand, make follow-up in-process filter sand and the area of contact of waste water that carries out preliminary filtration to waste water increase, make filtration efficiency increase, broken to the sand mass after having carried out the condensation simultaneously, reduce filtration resistance, improvement filter effect and efficiency.
2. During the operation of the filtering equipment, some tiny solid impurities can be gradually accumulated on the baffle plate, and the impurities can be accumulated on the surface of the baffle plate without being treated and move and accumulate towards the area far away from the circle center. A thick, dense impurity layer is easily formed. The thick layer can act as a barrier, greatly increasing the resistance to water flow, slowing down the flow and reducing the filtration efficiency. The solid impurities move towards the direction that the baffle plate is far away from the circle center, and are prevented from forming excessively thick accumulation, so that the relative cleanliness and smoothness of the surface of the baffle plate can be effectively maintained, the filtering resistance is obviously reduced, the smooth water flow is ensured, and the overall filtering efficiency is finally improved.
3. The opening on the sand separation plate is cut off in the process of filtering the sand screen, so that liquid required for cleaning is reduced, the use amount of the liquid can be reduced, the generation of wastewater is reduced, the subsequent wastewater treatment pressure is reduced, and meanwhile, the cleaning of a sand layer is ensured.
4. After a period of use, the sand particles gradually agglomerate into relatively tight agglomerates due to the trapped impurities and particles. Although the coagulation phenomenon can adsorb impurities to a certain extent, the resistance of water flow through the sand layer is also obviously increased, so that the filtration speed is reduced, and the efficiency is reduced. Through scattering the sand mass, the integral compaction degree of the sand layer can be effectively reduced, so that the resistance of water flow when passing through the sand layer is greatly reduced. The filtering speed is improved, the time required for treating the same water quantity is shortened, and the filtering efficiency is also improved. The broken sand mass is helpful for recovering and improving the pore structure in the sand layer, so that the pore distribution is more uniform and smooth. The filter device not only can effectively prevent the sand layer from losing the filtering capability too early due to partial blockage, but also can remarkably prolong the stable operation period of the whole filtering system. Because the permeability of the sand layer is improved, the system is not easy to be saturated quickly, and the number of backwashing times required to be carried out is greatly reduced.
Drawings
FIG. 1 is a schematic diagram of a chemical wastewater impurity filtering apparatus according to the present embodiment;
FIG. 2 is an internal schematic view of the filtering tower of the present embodiment;
FIG. 3 is a schematic structural diagram of the liquid inlet pipe and the water distribution pipe in this embodiment;
fig. 4is a schematic structural view of the first sleeve and the second sleeve according to the present embodiment;
FIG. 5is an exploded view of the first sleeve and the second sleeve of the present embodiment;
FIG. 6 is a partial enlarged view of the area A in FIG. 2 according to the present embodiment;
fig. 7 is a partial enlarged view of the region B in fig. 3 in the present embodiment.
The reference numerals are 1, a filter tower, 11, a discharge hole, 12, a water outlet, 2, a liquid inlet mechanism, 21, a liquid inlet pipe, 22, a driven pipe, 23, a water distribution pipe, 24, a water distribution hole, 3, a sand separation plate, 31, a baffle plate, 32, a connecting sleeve, 33, a liquid inlet, 34, a first sleeve, 35, a second sleeve, 36, a water injection hole, 37, a first pressure relief hole, 38, a second pressure relief hole, 39, an extension rod, 4, a strip scraper, 5, a sealing sleeve, 51, a sealing baffle plate, 52, a baffle block, 53, a liquid outlet, 54, a return spring, 6, a limiting block, 7 and a pushing spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to fig. 1 to 7 of the embodiments of the present application. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the application, fall within the scope of protection of the application.
As shown in fig. 1 and 2, this embodiment provides a chemical wastewater impurity filtering apparatus, including filtering tower 1, feed liquor mechanism 2, flushing mechanism and separation mechanism, offer discharge gate 11 on the lateral wall of filtering tower 1, and discharge gate 11 sets up in filtering tower 1's middle-end position, filtering tower 1's bottom position has been offered and has been used for flowing out the delivery port 12 through filtering back waste water, feed mechanism sets up in filtering tower 1's upper end position, feed mechanism is arranged in with unfiltered waste water in filtering tower 1, flushing mechanism sets up in filtering tower 1's middle-end position, and feed mechanism's height is less than discharge gate 11 setting. The wastewater is led into the liquid inlet mechanism 2, is distributed through the liquid inlet mechanism 2, uniformly enters the flushing mechanism, is subjected to preliminary filtration in the flushing mechanism, is discharged through the water outlet 12 after being subjected to preliminary filtration, and is blocked from falling of liquid through the blocking mechanism after being subjected to filtration for a period of time, so that the flushing mechanism is used for flushing the sand filtering layer in the flushing mechanism.
As shown in fig. 2, the inner side wall of the filtering tower 1 is fixedly connected with a sand separation plate 3, a quartz sand filtering material is filled above the sand separation plate 3 to intercept and adsorb a part of impurities existing in the wastewater, one end of quartz sand, which is close to the liquid inlet mechanism 2, is slidably connected with a baffle plate 31, the baffle plate 31 is arranged to be net-shaped, the sand separation plate 3 and the baffle plate 31 can separate the quartz sand filtering material, and the condition that the quartz sand filtering material is attached to the inner side wall of the filtering tower 1 is reduced.
As shown in fig. 2, the liquid inlet mechanism 2 comprises a liquid inlet pipe 21, a driven pipe 22 and a water distribution pipe 23, wherein the liquid inlet pipe 21 is fixedly connected to the upper end position of the filtering tower 1, the liquid inlet pipe 21 is communicated with an external pump, wastewater which is not subjected to preliminary filtration is introduced into the liquid inlet pipe 21 through the external pump, the driven pipe 22 is slidably sleeved in the liquid inlet pipe 21, the inside of the driven pipe 22 is communicated with the inside of the liquid inlet pipe 21, the water distribution pipe 23 is fixedly connected to the driven pipe 22, the axial direction of the water distribution pipe 23 is distributed on the side wall of the driven pipe 22, the water distribution pipe 23 is communicated with the driven pipe 22, the side wall of the water distribution pipe 23 is provided with a water distribution hole 24, and the water distribution hole 24 is arranged on the radial length of the water distribution pipe 23. The unfiltered wastewater is introduced into the liquid inlet pipe 21 through the external pump, the wastewater enters the driven pipe 22 through the liquid inlet pipe 21 and enters the water distribution pipe 23 through the driven pipe 22, and after entering the water distribution pipe 23, the water distribution pipe 23 and the driven pipe 22 are pushed to rotate by the impact force of the liquid, so that the liquid in the water distribution pipe 23 can be uniformly distributed on the baffle plate 31.
The whole liquid feeding and water distributing process starts from the starting of an external pump. The pump presses the wastewater which is not preliminarily filtered into the liquid inlet pipe 21 fixed at the top end of the filtering tower 1, and the wastewater then flows into the driven pipe 22 which is slidably sleeved in the liquid inlet pipe 21. The wastewater then enters a water distribution pipe 23 fixed to the driven pipe 22. When the wastewater is sprayed out from the water distribution holes 24 on the side wall of the water distribution pipe 23, the generated liquid impact force acts on the water distribution pipe 23 and the driven pipe 22 to drive the water distribution pipe and the driven pipe to start rotating. This rotation causes the water distribution holes 24 to constantly change direction, thereby uniformly spraying the wastewater on the lower baffle plate 31.
As shown in fig. 2, a strip-shaped scraper 4 is fixedly connected below the water distribution pipe 23, and the strip-shaped scraper 4 is used for pushing solid impurities remained on the baffle plate 31 to move away from the center of the circle of the baffle plate 31 when the water distribution pipe 23 rotates, so that the condition that the filtering efficiency of the baffle plate 31 is reduced due to accumulation of the solid impurities is reduced.
In the running process, the water distribution pipe 23 starts to rotate due to the reaction force generated by the internal liquid injection, and the strip-shaped scraping plate 4 fixed below the water distribution pipe also synchronously rotates. The rotating scraper is in close proximity to the upper surface of the baffle 31 and continuously pushes the solid impurities accumulated on the surface of the baffle 31 forward and directs them away from the center of the circle. By means of the mechanical scraping and directional conveying, the impurities are effectively prevented from forming thick layer accumulation in a key filtering area, so that the baffle plate 31 is kept smooth, the problems of increased filtering resistance and reduced efficiency are avoided, and the continuous high efficiency of the filtering process is ensured.
Meanwhile, as shown in fig. 2, a limiting block 6 is fixedly connected to the side wall of the filtering tower 1, the height of the limiting block 6 is lower than that of the discharging hole 11, and the limiting block 6 is used for limiting the highest position of the baffle plate 31 to move upwards.
As shown in fig. 2, fig. 4 and fig. 5, the flushing mechanism comprises a connecting sleeve 32, a first sleeve 34, an extension rod 39 and a second sleeve 35, wherein the connecting sleeve 32 is fixedly connected to one end, close to the water outlet 12, of the sand separation plate 3, a liquid inlet 33 is formed in the bottom end position of the filtering tower 1, the connecting sleeve 32 is sleeved in the liquid inlet 33, a water filling port 36 is formed in the connecting sleeve 32, the water filling port 36 can be communicated with the liquid inlet 33, the first sleeve 34 is slidably connected to the inside of the connecting sleeve 32, the upper end of the first sleeve 34 is fixedly connected with the baffle plate 31, a first pressure release hole 37 is formed in the first sleeve 34, the extension rod 39 is fixedly connected to the outer side wall of the first sleeve 34 and is arranged above the sand separation plate 3, the extension rod 39 is diamond-shaped, the extension rod 39 is used for crushing the filter sand which is coagulated into a cluster after being filtered for many times, the second sleeve 35 is slidably connected to the inside the first sleeve 34, a second pressure release hole 38 is formed in the second sleeve 35, and the first pressure release hole 37 is arranged in a staggered manner. By introducing liquid into the water injection port 36, the liquid enters the liquid inlet 33 through the water injection port 36 and is stored in the liquid inlet 33, after the liquid is stored in the liquid inlet 33 to a certain extent, the liquid pressure pushes the first sleeve 34 and the second sleeve 35 to move upwards, the blocking force of the first sleeve 34 when moving upwards is larger than that of the second sleeve 35 due to the arrangement of the extension rod 39, at the moment, the upward moving degree of the second sleeve 35 is larger than that of the first sleeve 34, the second pressure relief hole 38 on the second sleeve 35 at the lower position is communicated with the first pressure relief hole 37 on the first sleeve 34 at the upper lower position, so that the liquid firstly impacts out from the lower position of the sand baffle 3, the sand filter on the sand baffle 3 is firstly washed and scattered under the impact force of the liquid, and meanwhile, the extension rod 39 continuously moves upwards due to the pushing of the pressure, so that the agglomerated sand filter is crushed.
As shown in fig. 3,6 and 7, the blocking mechanism comprises a sealing sleeve 5, a sealing baffle plate 51, a blocking block 52 and a reset spring 54, the sealing sleeve 5 is slidably connected to the bottom of the filtering tower 1, the sealing sleeve 5 is sleeved at the middle position of the liquid inlet 33 of the connecting sleeve 32, the sealing baffle plate 51 is slidably connected to the filtering tower 1, the sealing baffle plate 51 is fixedly connected with the sealing sleeve 5, the blocking block 52 is fixedly connected to the sealing baffle plate 51, the blocking block 52 is provided with a plurality of blocking blocks, the sand blocking plate 3 is provided with a plurality of liquid outlets 53, and the liquid outlets 53 are correspondingly provided with the blocking blocks 52.
The separation piece 52 can block the liquid outlet 53 when the sealing baffle plate 51 moves upwards, the reset spring 54 is fixedly connected to the sealing sleeve 5, one end, away from the sealing sleeve 5, of the reset spring 54 is fixedly connected with the connecting sleeve 32, the reset spring 54 is used for pushing the sealing sleeve 5 to move downwards, and when the sealing sleeve 5 moves downwards, the sealing sleeve 5 can separate the communication between the liquid inlet 33 and the water injection port 36. When water is injected into the liquid inlet 33, the pressure of the liquid pushes the sealing sleeve to move upwards, so that the sealing sleeve which moves upwards moves to the extent that the liquid inlet 33 and the water injection port 36 can be communicated, and when the sealing sleeve moves to the height, the sealing baffle plate 51 moves to the lower position of the sand separation plate 3 under the pushing of the sealing sleeve, the blocking block 52 on the sealing baffle plate 51 blocks the liquid outlet 53, and the liquid moves to the upper position of the sand separation plate 3 through the water injection port 36, so that the liquid impacts the sand filtering.
As shown in fig. 7, a pushing spring 7 is fixedly connected to one end of the second sleeve 35 close to the baffle plate 31, one end of the pushing spring 7 far away from the second sleeve 35 is fixedly connected to the first sleeve 34, and the pushing spring 7 is used for pushing the second sleeve 35 to move downwards.
As shown in fig. 5, the first relief holes 37 are axially arrayed on the first sleeve 34, and the diameters of the first relief holes 37 gradually decrease in the direction approaching the barrier plate 31, and the second relief holes 38 are axially arrayed on the second sleeve 35, and the diameters of the second relief holes 38 gradually decrease in the direction approaching the barrier plate 31.
In the application, wastewater to be subjected to primary impurity separation is firstly introduced into a liquid inlet pipe 21, enters a driven pipe 22 through the liquid inlet pipe 21, enters a water distribution pipe 23 through the driven pipe 22, is introduced onto a baffle plate 31 from a water distribution hole 24 on the water distribution pipe 23, is filtered by the baffle plate 31, so that solid impurities in the wastewater are blocked by the baffle plate 31, the water distribution pipe 23 is pushed to rotate under the action of flushing water by the water distribution pipe 23, and the residual impurities on the baffle plate 31 are cleaned by a strip scraper 4 in the rotating process.
The waste water enters the lower part of the baffle plate 31 and the upper position of the sand separation plate 3 after the first filtration, and permeates downwards under the filtration of the sand filtration, so that impurities in the waste water are intercepted and adsorbed by the sand filtration, and move to the lower water outlet 12 of the filter tower 1 through the liquid outlet 53 on the sand separation plate 3, and the preliminary filtration of the waste water is completed.
The impurity in the filtering sand is more after many times filtration to the phenomenon of embracing the group appears, carries out the recoil in to the reaction tower through inlet 33, and the pressure of liquid increases gradually and promotes sealed sleeve and upwards moves, makes the sealed sleeve that moves up remove to the degree that inlet 33 and water injection mouth 36 can carry out the intercommunication, and when moving to this height, sealing baffle 51 moves to the below position of baffle 3 under sealed sleeve's promotion, makes the separation piece 52 on the sealing baffle 51 carry out the shutoff to the liquid outlet 53, and liquid moves to the top position of baffle 3 through water filling port 36, makes the liquid strike the filtering sand.
After the liquid inlet 33 stores a certain degree, the liquid pressure pushes the first sleeve 34 and the second sleeve 35 to move upwards, the blocking force of the first sleeve 34 is larger than that of the second sleeve 35 when the first sleeve 34 moves upwards due to the arrangement of the extension rod 39, at the moment, the upward moving degree of the second sleeve 35 is larger than that of the first sleeve 34, the second pressure release hole 38 positioned at the lower position on the second sleeve 35 is communicated with the first pressure release hole 37 positioned at the lower position on the head of the first sleeve 34, the liquid is impacted out from the lower position of the sand baffle 3, the sand on the sand baffle 3 is firstly washed and scattered under the impact force of the liquid, and meanwhile, the first sleeve 34 is continuously moved upwards due to the pushing of the pressure, and the extension rod 39 breaks up the agglomerated sand. And finishing the backflushing cleaning of the sand filter.
In the embodiment, the sand filter on the sand separation plate 3 is washed and scattered, so that the fine particle state of the sand filter can be effectively recovered, the specific surface area and the porosity of the sand filter are increased, and the filtering efficiency is directly improved. In addition, maintaining the uniformity of the sand filter layer also improves the operational stability of the system and reduces the additional pressure and maintenance costs caused by sand filter agglomeration, allowing the overall filtration system to operate more efficiently, economically, and stably for a longer period of time.
In this embodiment, through the impact of liquid, make the impurity that exists on the filter sand get rid of by the liquid, improve the purity degree of filter sand to can break the embracing group state in the filter sand at the in-process of impact, make the grit disperse evenly, be favorable to improving the mobility of filter sand, and can arrange the group again to the filter sand, make follow-up in-process filter sand and the area of contact of waste water that carries out preliminary filtration to waste water increase, make filtration efficiency increase.
In this embodiment, in order to effectively clean the sand accumulated on the sand screen 3, a large amount of liquid needs to be injected for flushing. This not only means a high water resource consumption, but also results in the production of large amounts of wastewater containing sand particles. The opening on the sand separation plate 3 is cut off in the process of filtering the sand screen, so that liquid required for cleaning is reduced, the use amount of the liquid can be reduced, the generation of wastewater is reduced, the subsequent wastewater treatment pressure is reduced, and meanwhile, the cleaning of a sand layer is ensured.
In this embodiment, through setting up bar scraper 4, can remove the centre of a circle department is kept away from to baffle 31 to the solid impurity that remains on the baffle 31, prevent that solid impurity from forming too thick to reduce filtration resistance, improved filtration efficiency.
In this embodiment, after the sand filter is cleaned, the baffle plate 31 moves downward along with the first sleeve 34, so that the baffle plate 31 presses down the washed sand filter, the uneven distribution of the sand filter located in the center due to liquid impact is reduced, and the filtering effect of the sand filter can be enhanced.
In the present embodiment, due to the diameters of the first pressure release hole 37 and the second pressure release hole 38, when the liquid entering the first sleeve 34 and the second sleeve 35 is reduced, the first pressure release hole 37 and the second pressure release hole 38 located above are closed, and the probability that the sand filter directly flows into the first sleeve 34 and the second sleeve 35 is reduced.
The implementation principle of the chemical wastewater impurity filtering equipment in the embodiment of the application is that wastewater to be subjected to preliminary impurity separation is firstly introduced into a liquid inlet pipe 21, enters a driven pipe 22 through the liquid inlet pipe 21, enters a water distribution pipe 23 through the driven pipe 22, is introduced onto a baffle plate 31 from a water distribution hole 24 on the water distribution pipe 23, is filtered by the baffle plate 31, so that solid impurities in the wastewater are blocked by the baffle plate 31, the water distribution pipe 23 is pushed to rotate under the action of flushing by the water distribution pipe 23, and the residual impurities on the baffle plate 31 are cleaned by a strip scraper 4 in the rotating process.
The waste water enters the lower part of the baffle plate 31 and the upper position of the sand separation plate 3 after the first filtration, and permeates downwards under the filtration of the sand filtration, so that impurities in the waste water are intercepted and adsorbed by the sand filtration, and move to the lower water outlet 12 of the filter tower 1 through the liquid outlet 53 on the sand separation plate 3, and the preliminary filtration of the waste water is completed.
The impurity in the filtering sand is more after many times filtration to the phenomenon of embracing the group appears, carries out the recoil in to the reaction tower through inlet 33, and the pressure of liquid increases gradually and promotes sealed sleeve and upwards moves, makes the sealed sleeve that moves up remove to the degree that inlet 33 and water injection mouth 36 can carry out the intercommunication, and when moving to this height, sealing baffle 51 moves to the below position of baffle 3 under sealed sleeve's promotion, makes the separation piece 52 on the sealing baffle 51 carry out the shutoff to the liquid outlet 53, and liquid moves to the top position of baffle 3 through water filling port 36, makes the liquid strike the filtering sand.
After the liquid inlet 33 stores a certain degree, the liquid pressure pushes the first sleeve 34 and the second sleeve 35 to move upwards, the blocking force of the first sleeve 34 is larger than that of the second sleeve 35 when the first sleeve 34 moves upwards due to the arrangement of the extension rod 39, at the moment, the upward moving degree of the second sleeve 35 is larger than that of the first sleeve 34, the second pressure release hole 38 positioned at the lower position on the second sleeve 35 is communicated with the first pressure release hole 37 positioned at the lower position on the head of the first sleeve 34, the liquid is impacted out from the lower position of the sand baffle 3, the sand on the sand baffle 3 is firstly washed and scattered under the impact force of the liquid, and meanwhile, the first sleeve 34 is continuously moved upwards due to the pushing of the pressure, and the extension rod 39 breaks up the agglomerated sand. And finishing the backflushing cleaning of the sand filter.
While the foregoing is directed to the preferred embodiments of the present application, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present application, and such modifications and adaptations are intended to be comprehended within the scope of the present application.
Claims (10)
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| CN118002000A (en) * | 2024-04-09 | 2024-05-10 | 沈阳红药精诚药业有限公司 | Mixing device for producing red medicine aerosol |
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| KR100540262B1 (en) * | 2002-05-23 | 2006-01-16 | 문병실 | Repair structure and repair method of lower collecting device |
| CN206707278U (en) * | 2017-04-28 | 2017-12-05 | 昆明海午塑胶科技有限公司 | A kind of pre-buried pipe devices of PVC |
| KR102651725B1 (en) * | 2017-11-17 | 2024-03-26 | 야마신 필터 가부시키가이샤 | filter device |
| CN217472796U (en) * | 2022-06-24 | 2022-09-23 | 固始三利环保设备制造有限公司 | Sewage treatment sand filter tank capable of quickly replacing sand |
| CN219690280U (en) * | 2023-03-21 | 2023-09-15 | 廉江市人民医院 | Positioning and marking device for hospital construction |
| CN220328467U (en) * | 2023-07-06 | 2024-01-12 | 苏洁 | Uniform mixing device for blood test |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102895810A (en) * | 2012-10-14 | 2013-01-30 | 青岛小川环保设备有限公司 | Filter media loss-free continuous drift sand filter |
| CN118002000A (en) * | 2024-04-09 | 2024-05-10 | 沈阳红药精诚药业有限公司 | Mixing device for producing red medicine aerosol |
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