Self-cleaning structure of biological deodorization filter tank

By designing the self-cleaning structure of the biodeodor filter tank, and using the cooperation of the diversion bottom plate and scraper assembly, the automatic cleaning of sludge and impurities at the bottom of the filter tank is achieved, solving the problems of cumbersome cleaning process, high labor intensity and poor operating stability in the prior art, and improving cleaning efficiency and equipment stability.

CN223002800UActive Publication Date: 2025-06-20JIANGSU TIANXIN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202422123998.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-06-20
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

The cleaning process of existing biological deodorizing filters is complicated and complicated, with high labor intensity, poor cleaning effect, and requires the equipment to be suspended, affecting the operation stability.

Method used

A biodeodor filter self-cleaning structure is designed, including filter tank, sewage pipe, self-cleaning assembly and drive material push assembly. The self-cleaning components include a flow guide bottom plate, a main scraper and a side scraper. Through the cooperation of the flow guide bottom plate and the sewage pipe, the sliding design of the main scraper and the side scraper can realize automatic cleaning of sludge and impurities at the bottom of the filter tank.

Benefits of technology

It realizes convenient and efficient cleaning of the biological deodorizing filter, simplifies the cleaning process, reduces labor intensity, improves the cleaning effect, and maintains the stable operation of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-cleaning structure of a biological deodorization filter tank. The self-cleaning structure comprises a filter tank, a blow-off pipe, a self-cleaning assembly and a pair of driving material pushing assemblies, the self-cleaning assembly is assembled in the filter tank and comprises a flow guide bottom plate, the flow guide bottom plate is fixedly assembled at the bottom of the filter tank, a main scraper is assembled above the flow guide bottom plate in a sliding mode, side scrapers are assembled on the two sides of the main scraper in a sliding mode, and the main scraper and the pair of side scrapers are combined to form a cleaning scraper. And the pair of driving material pushing assemblies are fixedly assembled on the two sides of the blow-off pipe, each driving material pushing assembly comprises a limiting storage block, and a material pushing air bag is fixedly assembled on the side, close to the blow-off pipe, of each limiting storage block. According to the self-cleaning structure of the biological deodorization filter tank disclosed by the utility model, sludge or impurities accumulated at the bottom of the biological deodorization filter tank can be automatically cleaned through the arrangement of corresponding structures, so that the process of cleaning the biological deodorization filter tank is simplified, and the convenience and high efficiency of cleaning the biological deodorization filter tank are improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of biological deodorization filter cleaning, and particularly relates to a self-cleaning structure of a biological deodorization filter. Background Art

[0002] A biological deodorization filter is a biological reaction device that uses microorganisms to degrade organic pollutants, and is mainly used for treating malodorous gases and waste water. The biological deodorization filter mainly consists of a pool body, a packing layer, a microbial layer, a gas distribution device, and a spraying device. Its main principle is to pass the malodorous gas or waste water to be treated through the packing layer, and decompose it into harmless substances by microorganisms, so as to achieve the purpose of deodorization.

[0003] At present, a common biological deodorization filter usually installs a spraying device above the packing layer. During the deodorization process of the biological deodorization filter, the waste water or other moisture sprayed by the spraying device will flow back to the bottom of the biological deodorization filter under the action of gravity. After long-term use, sludge and impurities will accumulate at the bottom of the biological deodorization filter. The accumulation of sludge and impurities will not only affect the deodorization effect of the biological deodorization filter, but also affect the growth state of microorganisms in the biological deodorization filter. Therefore, in order to ensure the use effect of the biological deodorization filter, it is usually necessary to regularly clean the biological deodorization filter.

[0004] In the prior art, the cleaning process of the biological deodorization filter mostly adopts the manual cleaning method to clean the sludge and impurities accumulated at the bottom of the filter. Although the manual cleaning method can clean the sludge and impurities accumulated at the bottom of the filter, when using this method to clean the biological deodorization filter, it is necessary to disassemble the packing layer and the microbial layer, and then the sludge and impurities accumulated at the bottom of the filter can be cleaned. This makes the cleaning process of the biological deodorization filter not only cumbersome and complex, with a large labor intensity and poor cleaning effect, but also the manual cleaning needs to pause the operation state of the biological deodorization filter, resulting in poor operation stability of the biological deodorization filter.

[0005] Therefore, in view of the above technical problems, it is necessary to provide a self-cleaning structure for a biological deodorization filter.

[0006] The information disclosed in this background art section is only intended to enhance the overall understanding of the present utility model and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0007] The purpose of the present utility model is to provide a self-cleaning structure for a biological deodorization filter, which can clean the biological deodorization filter conveniently and efficiently.

[0008] To achieve the above object, a specific embodiment of the present utility model provides a self-cleaning structure for a biological deodorization filter tank, including: a filter tank, a sewage discharge pipe, a self-cleaning component, and a pair of driving and pushing components.

[0009] The sewage discharge pipe is fixedly connected to the lower part of the filter tank.

[0010] The self-cleaning component is assembled in the filter tank. The self-cleaning component includes a diversion bottom plate, which is fixedly assembled at the bottom of the filter tank. The diversion bottom plate is arranged in cooperation with the sewage discharge pipe. A main scraper is slidably assembled above the diversion bottom plate, and side scrapers are slidably assembled on both sides of the main scraper. The main scraper and the pair of side scrapers form a cleaning scraper.

[0011] A pair of the driving and pushing components are fixedly assembled on both sides of the sewage discharge pipe. The driving and pushing component includes a limit receiving block, which is fixedly connected to the inner wall of the filter tank. A pushing air bag is fixedly assembled on the side of the limit receiving block close to the sewage discharge pipe.

[0012] In one or more embodiments of the present utility model, a pair of supporting mesh plates are fixedly assembled in the filter tank, and the pair of supporting mesh plates are fixedly assembled above the main scraper. The packing layer is assembled and limited by the pair of supporting mesh plates. A packing layer is filled between the pair of supporting mesh plates. The waste gas or wastewater filled in the filter tank is deodorized by the packing layer.

[0013] In one or more embodiments of the present utility model, a spray pipe is fixedly assembled above the packing layer. Spray water or spray wastewater is conveyed into the filter tank through the spray pipe. A plurality of groups of uniformly distributed spray nozzles are fixedly assembled on the side of the spray pipe close to the supporting mesh plate. The spray water or spray wastewater is sprayed and discharged through the plurality of groups of spray nozzles.

[0014] In one or more embodiments of the present utility model, an exhaust pipe is communicated with the upper part of the filter tank. The purified gas in the filter tank is discharged through the exhaust pipe. An intake pipe is communicated with the lower part of the filter tank, and the intake pipe is arranged below the packing layer. The waste gas to be treated is conveyed into the filter tank through the intake pipe.

[0015] In one or more embodiments of the present utility model, the horizontal height of the side of the diversion bottom plate close to the sewage discharge pipe is lower than that of the other end. By obliquely arranging the diversion bottom plate, it is convenient to discharge the sludge or impurities accumulated on the diversion bottom plate. Limit top blocks are fixedly assembled above the pair of side scrapers. The side scrapers and the threaded sliders are assembled, fixed and synchronously driven and controlled through the limit top blocks.

[0016] In one or more embodiments of the present utility model, a number of connecting springs are fixedly connected between a pair of the main scraping plates and the limiting top blocks. The main scraping plates and the limiting top blocks are connected and fixed by the number of connecting springs, thereby facilitating the connection and limitation of the main scraping plates. A threaded slider is fixedly assembled above each of the pair of limiting top blocks. The threaded slider plays a role in assembling, fixing, and moving control of the limiting top block.

[0017] In one or more embodiments of the present utility model, a moving lead screw is threadedly connected inside each of the pair of threaded sliders, and the pair of moving lead screws are rotatably connected to the filter tank. The moving lead screw plays a role in supporting, limiting, and moving control of the threaded slider. A lead screw protective frame is sleeved outside each of the pair of moving lead screws, and the lead screw protective frame is fixedly connected to the inner wall of the filter tank. The lead screw protective frame plays a role in assembling, limiting, and sliding movement of the threaded slider. At the same time, the moving lead screw can be shielded and protected by the lead screw protective frame, reducing the occurrence of rust on the moving lead screw.

[0018] In one or more embodiments of the present utility model, a driving motor is fixedly assembled outside the filter tank, and the output shaft of the driving motor is in transmission connection with a single moving lead screw. The driving motor plays a role in providing power, and the moving lead screw is rotationally driven by controlling the operation of the driving motor.

[0019] In one or more embodiments of the present utility model, a synchronous pulley is fixedly connected to one end of each of the pair of moving lead screws located outside the filter tank. The pair of moving lead screws are synchronously driven by the synchronous pulleys. A transmission belt is sleeved outside the pair of synchronous pulleys. The transmission belt plays a role in connecting the pair of synchronous pulleys, facilitating the synchronous rotation of the pair of synchronous pulleys under the action of the transmission belt.

[0020] In one or more embodiments of the present utility model, a protective airbag ring is fixedly assembled on the inner wall of each of the pair of lead screw protective frames, and the protective airbag ring is sleeved outside the moving lead screw. The protective airbag ring plays a role in sealing and protecting the moving lead screw. At the same time, the moving lead screw can play a role in gas storage. In addition, the protective airbag ring can play a role in buffering and limiting the threaded slider. A conduction air pipe is communicated between the protective airbag ring and the pushing airbag. The conduction air pipe plays a role in communicating the protective airbag ring and the pushing airbag, facilitating the gas in the protective airbag ring to be transported into the pushing airbag along the conduction air pipe, thereby facilitating the auxiliary pushing of the sludge or impurities in the filter tank, and improving the effect of cleaning the sludge or impurities at the bottom of the filter tank.

[0021] Compared with the prior art, a self-cleaning structure of a biological deodorization filter pool disclosed by the utility model can automatically clean the sludge or impurities accumulated at the bottom of the biological deodorization filter pool through the setting of corresponding structures, simplifies the cleaning process of the biological deodorization filter pool, and improves the convenience and efficiency of cleaning the biological deodorization filter pool. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is the first front elevation sectional view of a self-cleaning structure of a biological deodorization filter pool in an embodiment of the present utility model;

[0024] Figure 2 is Figure 1 the structural schematic diagram at position A in

[0025] Figure 3 It is the partial structural schematic diagram of a self-cleaning structure of a biological deodorization filter pool in an embodiment of the present utility model;

[0026] Figure 4 It is the partial structural schematic diagram of a self-cleaning structure of a biological deodorization filter pool in another perspective in an embodiment of the present utility model;

[0027] Figure 5 It is the second front elevation sectional view of a self-cleaning structure of a biological deodorization filter pool in an embodiment of the present utility model;

[0028] Figure 6 is Figure 5 the structural schematic diagram at position B in

[0029] Figure 7 is Figure 5 the structural schematic diagram at position C in

[0030] Figure 8 It is the three-dimensional view of a self-cleaning structure of a biological deodorization filter pool in an embodiment of the present utility model.

[0031] Main reference numeral description:

[0032] 1 - Filter tank, 101 - Drain pipe, 102 - Support mesh plate, 103 - Packing layer, 104 - Spray pipe, 105 - Spray nozzle, 106 - Exhaust pipe, 107 - Intake pipe, 2 - Self - cleaning component, 201 - Guide bottom plate, 202 - Main scraper, 203 - Side scraper, 204 - Limit top block, 205 - Connecting spring, 206 - Threaded slider, 207 - Moving lead screw, 208 - Lead screw protection frame, 209 - Driving motor, 210 - Synchronous pulley, 211 - Transmission belt, 3 - Driving and pushing component, 301 - Limit storage block, 302 - Pushing air bag, 303 - Protective air bag ring, 304 - Conducting air pipe. Detailed implementation manners

[0033] In order to enable those skilled in the art of this technology to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] As Figures 1 to 8 shown, a self - cleaning structure of a biological deodorization filter tank in an embodiment of the present utility model includes: a filter tank 1, a drain pipe 101, a self - cleaning component 2, and a pair of driving and pushing components 3.

[0035] As Figure 1 , a drain pipe 101 is fixedly connected to the lower part of the filter tank 1. It is convenient to export the sludge and impurities accumulated at the bottom of the filter tank 1 through the drain pipe 101.

[0036] As Figure 1 , a pair of support mesh plates 102 are fixedly assembled in the filter tank 1, and the pair of support mesh plates 102 are fixedly assembled above the main scraper 202. The packing layer 103 is assembled and limited by the pair of support mesh plates 102.

[0037] As Figure 1 , a packing layer 103 is filled between the pair of support mesh plates 102. The waste gas or waste water filled in the filter tank 1 is deodorized by the packing layer 103.

[0038] As Figure 1 , a spray pipe 104 is fixedly assembled above the packing layer 103. Spray water or spray waste water is conveyed into the filter tank 1 through the spray pipe 104.

[0039] As Figure 1, on one side of the spray pipe 104 close to the supporting mesh plate 102, a plurality of uniformly distributed spray nozzles 105 are fixedly assembled. The spray water or spray wastewater is sprayed and discharged through the plurality of spray nozzles 105.

[0040] As Figure 1 , an exhaust pipe 106 is connected above the filter tank 1. The purified gas in the filter tank 1 is discharged through the exhaust pipe 106.

[0041] As Figure 1 , an intake pipe 107 is connected below the filter tank 1, and the intake pipe 107 is arranged below the packing layer 103. The exhaust gas to be treated is conveyed into the filter tank 1 through the intake pipe 107.

[0042] As Figures 1 to 4 As shown, the self-cleaning component 2 is assembled in the filter tank 1. The self-cleaning component 2 includes a diversion bottom plate 201, and the diversion bottom plate 201 is fixedly assembled at the bottom of the filter tank 1. The diversion bottom plate 201 is arranged in cooperation with the sewage discharge pipe 101. The sludge and impurities accumulated at the bottom of the filter tank 1 are diverted through the diversion bottom plate 201.

[0043] It should be noted that the horizontal height of one side of the diversion bottom plate 201 close to the sewage discharge pipe 101 is lower than that of the other end. By arranging the diversion bottom plate 201 obliquely, it is convenient to discharge the sludge or impurities accumulated on the diversion bottom plate 201.

[0044] As Figures 1 to 4 As shown, a main scraper 202 is slidably assembled above the diversion bottom plate 201. Side scrapers 203 are slidably assembled on both sides of the main scraper 202. The main scraper 202 and a pair of side scrapers 203 form a cleaning scraper. The sludge and impurities accumulated above the diversion bottom plate 201 are scraped and cleaned by the way of the cleaning scraper moving above the diversion bottom plate 201.

[0045] As Figures 1 to 4 As shown, limit top blocks 204 are fixedly assembled above a pair of side scrapers 203. The side scrapers 203 and the threaded sliders 206 are assembled and fixed and synchronously driven and controlled through the limit top blocks 204.

[0046] As Figures 1 to 4 As shown, a plurality of connecting springs 205 are fixedly connected between a pair of main scrapers 202 and the limit top blocks 204. The main scrapers 202 and the limit top blocks 204 are connected and fixed through the plurality of connecting springs 205, so as to facilitate the connection and limitation of the main scrapers 202. Threaded sliders 206 are fixedly assembled above a pair of limit top blocks 204. The threaded sliders 206 play a role in assembling and fixing the limit top blocks 204 and moving control.

[0047] As Figures 1 to 4As shown, a moving lead screw 207 is internally threaded in each of a pair of threaded sliders 206. The pair of moving lead screws 207 are rotatably connected to the filter tank 1. The moving lead screws 207 play a role in supporting, limiting and moving control of the threaded sliders 206.

[0048] As Figures 1 to 4 shown, a lead screw protective frame 208 is sleeved on the outside of each of the pair of moving lead screws 207. The lead screw protective frame 208 is fixedly connected to the inner wall of the filter tank 1. The lead screw protective frame 208 plays a role in assembling and limiting and sliding movement of the threaded sliders 206. At the same time, the moving lead screws 207 can be shielded and protected through the lead screw protective frame 208, reducing the occurrence of rust on the moving lead screws 207.

[0049] As Figures 1 to 4 shown, a driving motor 209 is fixedly assembled on the outside of the filter tank 1. The output shaft of the driving motor 209 is in transmission connection with a single moving lead screw 207. The driving motor 209 plays a role in providing power, and the moving lead screw 207 is rotationally driven by controlling the operation of the driving motor 209.

[0050] As Figures 1 to 4 shown, a synchronous pulley 210 is fixedly connected to one end of each of the pair of moving lead screws 207 located outside the filter tank 1. The pair of moving lead screws 207 are synchronously driven through the synchronous pulleys 210. A transmission belt 211 is sleeved on the outside of the pair of synchronous pulleys 210. The transmission belt 211 plays a role in connecting the pair of synchronous pulleys 210, facilitating synchronous rotation of the pair of synchronous pulleys 210 under the action of the transmission belt 211.

[0051] As Figures 5 to 7 shown, a pair of driving and pushing components 3 are fixedly assembled on both sides of the sewage discharge pipe 101. The driving and pushing component 3 includes a limiting and receiving block 301. The limiting and receiving block 301 is fixedly connected to the inner wall of the filter tank 1. The limiting and receiving block 301 plays a role in receiving and limiting the pushing airbag 302. At the same time, the limiting and receiving block 301 can play a role in moving and limiting the cleaning scraper.

[0052] As Figures 5 to 7 shown, a pushing airbag 302 is fixedly assembled on one side of the limiting and receiving block 301 close to the sewage discharge pipe 101. The sludge and impurities scraped by the cleaning scraper are pushed towards the sewage discharge pipe 101 through the inflation of the pushing airbag 302, improving the stability of discharging the sludge and impurities at the bottom of the filter tank 1.

[0053] As Figures 5 to 7As shown in the figure, protective airbag rings 303 are fixedly assembled on the inner walls of a pair of lead screw protective frames 208. The protective airbag rings 303 are sleeved outside the moving lead screw 207. The protective airbag rings 303 play a role in sealing and protecting the moving lead screw 207. At the same time, the moving lead screw 207 can play a role in gas storage. In addition, the protective airbag rings 303 can play a role in buffering and limiting the threaded slider 206.

[0054] As Figures 5 to 7 shown in the figure, a conduction air pipe 304 is connected between the protective airbag ring 303 and the pushing airbag 302. The conduction air pipe 304 plays a role in connecting the protective airbag ring 303 and the pushing airbag 302, facilitating the gas in the protective airbag ring 303 to be transported along the conduction air pipe 304 into the pushing airbag 302, thereby facilitating the auxiliary pushing of the sludge or impurities in the filter tank 1, and improving the effect of cleaning the sludge or impurities at the bottom of the filter tank 1.

[0055] During specific use, the packing layer 103 can perform biological deodorization on the wastewater by spraying spray water or wastewater through the spray pipe 104 and the spray nozzle 105. At the same time, waste gas can be transported to the bottom of the packing layer 103 through the air inlet pipe 107, and the packing layer 103 performs biological deodorization on the waste gas. The deodorized gas can be discharged along the exhaust pipe 106.

[0056] When it is necessary to clean the sludge and impurities accumulated at the bottom of the filter tank 1, the driving motor 209 is controlled to operate to drive the single moving lead screw 207 to rotate. A pair of moving lead screws 207 rotate synchronously under the cooperation of the synchronous belt wheels 210 and the transmission belt 211. A pair of threaded sliders 206 drive a pair of side scrapers 203 to slide above the diversion bottom plate 201 under the action of the internal and external threads. The sludge and impurities accumulated on the side wall of the filter tank 1 and the diversion bottom plate 201 are scraped and cleaned by the cleaning scraper sliding on the diversion bottom plate 201. The sludge and impurities accumulated on the diversion bottom plate 201 are moved towards the sewage pipe 101 under the action of the cleaning scraper and are discharged from the filter tank 1 through the sewage pipe 101.

[0057] In addition, during the movement of the threaded slider 206, the threaded slider 206 can squeeze the protective airbag ring 303. The gas in the protective airbag ring 303 is transported along the conduction air pipe 304 into the pushing airbag 302 under the squeezing action of the threaded slider 206. The pushing airbag 302 expands by transporting gas into the pushing airbag 302, and the sludge and impurities accumulated on both sides of the sewage pipe 101 are assisted to be pushed, thereby improving the effect of the sewage pipe 101 in discharging the sludge or impurities and improving the cleaning effect of the biological deodorization filter tank.

[0058] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0059] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A biological deodorization filter self-cleaning structure, characterized in that: include: A filter tank, wherein a sewage pipe is fixedly connected to the bottom of the filter tank; A self-cleaning assembly is installed in the filter tank, and the self-cleaning assembly includes a guide bottom plate, the guide bottom plate is fixedly installed at the bottom of the filter tank, the guide bottom plate is arranged in cooperation with the sewage discharge pipe, a main scraper is slidably installed above the guide bottom plate, side scrapers are fixedly installed on both sides of the main scraper, and the main scraper and a pair of side scrapers are combined to form a cleaning scraper; A pair of driving and pushing components are fixedly assembled on both sides of the sewage pipe. The driving and pushing components include a limiting storage block, which is fixedly connected to the inner wall of the filter tank. A pushing airbag is fixedly assembled on one side of the limiting storage block close to the sewage pipe.

2. A biological deodorization filter self-cleaning structure according to claim 1, characterized in that: A pair of supporting mesh plates are fixedly installed in the filter tank, the pair of supporting mesh plates are fixedly installed above the main scraper, and a filler layer is filled between the pair of supporting mesh plates.

3. A biological deodorization filter self-cleaning structure according to claim 2, characterized in that: A spray pipe is fixedly installed above the packing layer, and a plurality of groups of evenly distributed spray nozzles are fixedly installed on one side of the spray pipe close to the supporting mesh plate.

4. A biological deodorization filter self-cleaning structure according to claim 3, characterized in that: The top of the filter tank is connected with an exhaust pipe, and the bottom of the filter tank is connected with an air intake pipe, and the air intake pipe is arranged below the packing layer.

5. The self-cleaning structure of a biological deodorization filter according to claim 1, characterized in that: The level of the guide bottom plate close to one side of the sewage pipe is lower than that of the other end, and a pair of side scrapers are slidably mounted with limited top blocks on their upper sides.

6. A biological deodorization filter self-cleaning structure according to claim 5, characterized in that: A plurality of connection springs are fixedly connected between the pair of main scrapers and the limiting top blocks, and a threaded sliding block is fixedly mounted on the top of the pair of limiting top blocks.

7. A biological deodorization filter self-cleaning structure according to claim 6, characterized in that: A pair of threaded sliders are both threadedly connected with movable lead screws, and the pair of movable lead screws are both rotatably connected to the filter tank. The outer sides of the pair of movable lead screws are both covered with lead screw protection frames, and the lead screw protection frames are fixedly connected to the inner wall of the filter tank.

8. The self-cleaning structure of a biological deodorizing filter tank according to claim 7, characterized in that: A driving motor is fixedly mounted on the outer side of the filter tank, and an output shaft of the driving motor is drivingly connected to a single movable lead screw.

9. A biological deodorization filter self-cleaning structure according to claim 8, characterized in that: One end of a pair of movable lead screws located outside the filter tank is fixedly connected with a synchronous pulley, and a transmission belt is sleeved on the outer side of the pair of synchronous pulleys.

10. The biological deodorization filter self-cleaning structure according to claim 9, characterized in that: A pair of protective airbag rings are fixedly mounted on the inner walls of the lead screw protection frames. The protective airbag rings are sleeved on the outer sides of the movable lead screws. A conducting air pipe is connected between the protective airbag rings and the pusher airbags.