Biological deodorization filter tank

Abstract

The invention relates to the technical field of environmental engineering, and discloses a biological deodorization filter tank which comprises a purification tank and a discharge mechanism, an assembly hole is formed in the outer wall of the purification tank, an exhaust port is formed in the inner wall of the purification tank, the discharge mechanism is arranged on the inner wall of the purification tank, and the discharge mechanism comprises a water separation bin; the inner wall of the water separation bin is fixedly connected with the outer wall of the water filtering bin, the inner wall of the water filtering bin is fixedly connected with the outer wall of the supporting plate, the outer wall of the supporting plate is fixedly connected with the outer wall of the exhaust bin, a first exhaust hole is formed in the top of the outer wall of the exhaust bin, and the outer wall of the water separation bin is fixedly connected with the inner wall of the air inlet row. By arranging the discharge mechanism, malodorous gas is uniformly discharged into the purification tank through the discharge mechanism and is filtered by the decomposition furnace through microorganisms, and meanwhile, water generated after microbial decomposition is collected and isolated through the discharge mechanism, so that the situation that the malodorous gas discharge efficiency is reduced after water is accumulated at the bottom of the purification tank is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of environmental engineering, in particular to a biological deodorizing filter tank. Background Art

[0002] In today's society, with the development of industry and urban expansion, the problem of odor pollution has become increasingly prominent. Biological deodorization filters have emerged as an effective means to solve this problem. Biological deodorization filters are widely used in sewage treatment plants, garbage disposal sites, food processing plants, pharmaceutical factories and other places, playing an important role in improving air quality, improving the quality of life of residents and promoting sustainable urban development.

[0003] A patent application with application number CN202010867349.0 discloses a biological deodorization filter tank, which relates to the technical field of waste gas treatment devices, including a tank body, a supporting layer is provided at the lower part of the tank body, a soil filling layer is provided at the upper part of the tank body, and an air distribution duct is provided at the bottom of the tank body. The air distribution duct is connected to the exhaust gas source through a ventilation duct equipped with a pump body, turf is planted on the top of the soil filling layer, a sprinkler irrigation system is provided on the top of the tank body, and a drainage port connected to the supporting layer is provided on the side of the tank body, and the drainage port is located above the air distribution duct.

[0004] However, existing biological deodorization filters usually require a relatively humid environment, and malodorous gases need to be discharged from the bottom of the deodorization tank so that the gases can be evenly distributed inside the deodorization tank. However, excess water will concentrate at the bottom of the deodorization tank, causing the air inlet of the deodorization tank to be blocked and unable to be discharged normally, thereby limiting the use of the biological deodorization filter. Summary of the invention

[0005] The object of the present invention is to provide a biological deodorization filter to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a biological deodorization filter tank, comprising a purification tank, wherein the outer wall of the purification tank is provided with an assembly hole, the inner wall of the purification tank is provided with an exhaust port, and further comprising:

[0007] A discharge mechanism, wherein the discharge mechanism is arranged on the inner wall of the purification tank, the discharge mechanism includes a water-blocking bin, the inner wall of the water-blocking bin is fixedly connected to the outer wall of the water filter bin, the inner wall of the water filter bin is fixedly connected to the outer wall of the support plate, the outer wall of the support plate is fixedly connected to the outer wall of the exhaust bin, an exhaust hole 1 is provided on the top of the outer wall of the exhaust bin, the outer wall of the water-blocking bin is fixedly connected to the inner wall of the air intake row, the outer wall of the air intake row is fixedly connected with a flange, and an exhaust hole 2 is provided on the inner wall of the air intake row, a flow guide mechanism is arranged inside the water-blocking bin, an auxiliary heating mechanism is arranged inside the water-blocking bin, the discharge mechanism discharges malodorous gases uniformly into the purification tank for filtration by a decomposition furnace through microorganisms, and water produced after decomposition by microorganisms is collected and isolated through the discharge mechanism to prevent water accumulation at the bottom of the purification tank from reducing the efficiency of malodorous gas discharge, so that the biological deodorization filter tank can be used normally;

[0008] A water filtering mechanism is arranged inside the water filtering bin, the water filtering mechanism comprises a guide pipe, the outer wall of the guide pipe is fixedly connected to the bottom of the inner wall of the exhaust bin, the bottom of the guide pipe is fixedly connected to the top of the check disk, the outer wall of the guide pipe is slidably connected to the inner wall of the buoyancy cover, the outer wall of the guide pipe is provided with a spring, one end of the spring is fixedly connected to the bottom of the exhaust bin, and the other end is fixedly connected to the top of the buoyancy cover. The water generated when the microorganisms in the purification tank filter and purify the malodorous gas is filtered and collected through the water filtering mechanism to prevent water from concentrating at the bottom of the purification tank to form accumulated water to block the discharge mechanism, resulting in reduced gas discharge efficiency, so that the biological deodorization filter tank can be used normally.

[0009] According to the above technical solution, the water filtering mechanism also includes a fixed sleeve, the outer wall of the fixed sleeve is fixedly connected to the inner wall of the water filtering bin, the inner wall of the fixed sleeve is fixedly connected to the outer wall of the filter sleeve, and the outer wall of the filter sleeve is provided with filtering holes.

[0010] According to the above technical solution, the diversion mechanism includes a main air pipe, the outer wall of the main air pipe is fixedly connected to the inner wall of the water-blocking chamber, the outer wall of the main air pipe is fixedly connected to one end of the return pipe close to the main air pipe, the bottom of the main air pipe is fixedly connected to the top of the waterproof edge, and a diversion groove is provided on the outer wall of the waterproof edge. The discharge of malodorous gases is diverted by the diversion mechanism to prevent the accumulation of water during filtration and purification of malodorous gases in the purification tank, which may lead to backflow. At the same time, the water droplets condensed from water vapor are diverted to prevent the water droplets from entering the main air pipe and affecting the discharge efficiency of malodorous gases, so that the biological deodorization filter tank can be used normally.

[0011] According to the above technical solution, the end of the return pipe away from the main air pipe is fixedly connected to the outer wall of the guide port, the top of the main air pipe is fixedly connected to the bottom of the waterproof cover, and there are three groups of guide mechanisms. The three groups of guide mechanisms are equidistantly arrayed on the inner wall of the watertight bin with the center line of the watertight bin as the rotation axis.

[0012] According to the above technical solution, the auxiliary heating mechanism includes a connecting rib, wherein one end of the connecting rib is close to the inner wall of the watertight bin and is fixedly connected to the outer wall of the heat-conducting ring at one end of the connecting rib away from the inner wall of the watertight bin, and the inner wall of the heat-conducting ring is fixedly connected to the outer wall of the resistance wire. A heat-conducting port is provided on the top of the outer wall of the heat-conducting ring. The water collected in the watertight bin is heated by the auxiliary heating mechanism, and the water vapor is discharged in cooperation with the diversion mechanism to keep the reactants in the purification tank moist. At the same time, the heat and humidity keep the microorganisms in the purification tank active, thereby increasing the purification efficiency of the microorganisms for malodorous gases and enabling the biological deodorization filter to be used normally.

[0013] According to the above technical solution, the outer wall of the main air pipe passes through the water filter bin and the exhaust bin, so that the bottom of the waterproof cover is fixedly connected to the top of the main air pipe in the exhaust bin, and the outer wall of the return pipe is fixedly connected to the outer wall of the main air pipe on the inner wall of the water-isolating bin.

[0014] According to the above technical solution, the buoyancy cover contacts the outer wall of the filter sleeve through spring compression, and the outer wall of the buoyancy cover is slidably connected to the outer wall of the support plate, and the bottom of the filter sleeve is lower than the highest point of the inner wall of the check disk.

[0015] According to the above technical solution, the top of the exhaust bin outer wall passes through the exhaust port, and the top of the exhaust bin outer wall protrudes from the bottom of the inner wall of the purification tank, the air intake outer wall passes through the outer wall of the water-blocking bin and is fixedly connected to the inner wall of the water-blocking bin, and the second exhaust hole passes through the inner wall of the air intake and is connected to the inside of the water-blocking bin.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The biological deodorization filter tank is provided with a discharge mechanism, which discharges the malodorous gas evenly into the purification tank for decomposition and filtration by microorganisms. At the same time, the water produced after the decomposition by microorganisms is collected and isolated by the discharge mechanism to prevent the efficiency of malodorous gas emission from being reduced due to water accumulation at the bottom of the purification tank, so that the biological deodorization filter tank can be used normally.

[0018] 2. The biological deodorization filter tank is provided with a diversion mechanism, through which the discharge of malodorous gases is diverted to prevent the accumulation of water during the filtration and purification of malodorous gases in the purification tank, which may lead to backflow. At the same time, the water droplets condensed from water vapor are diverted to prevent the water droplets from entering the main air pipe and affecting the discharge efficiency of malodorous gases, so that the biological deodorization filter tank can be used normally.

[0019] 3. The biological deodorization filter tank is provided with an auxiliary heating mechanism, which heats the water collected in the water-blocking bin and cooperates with the diversion mechanism to discharge the water vapor, so that the reactants in the purification tank maintain humidity. At the same time, the heat and humidity keep the microorganisms in the purification tank active, increase the purification efficiency of the microorganisms for malodorous gases, and enable the biological deodorization filter tank to be used normally.

[0020] 4. The biological deodorization filter tank is provided with a water filtering mechanism, through which the water generated by the microorganisms in the purification tank when filtering and purifying the malodorous gas is filtered and collected, to prevent the water from gathering at the bottom of the purification tank to form accumulated water and block the discharge mechanism, resulting in reduced gas emission efficiency, so that the biological deodorization filter tank can be used normally.

[0021] 5. The biological deodorization filter tank is provided with a waterproof edge and a guide groove. The water vapor contained in the malodorous gas discharged into the water-proof chamber condenses into water droplets, which are guided through the waterproof edge and the guide groove. At the same time, the water droplets are prevented from flowing into the main air pipe to reduce the emission efficiency of the malodorous gas, so that the biological deodorization filter tank can be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 is a cross-sectional view of the present invention;

[0024] Figure 3 is a cross-sectional view of the discharge mechanism of the present invention;

[0025] Figure 4 is a cross-sectional view of the discharge mechanism of the present invention;

[0026] Figure 5 is a cross-sectional view of the flow guiding mechanism of the present invention;

[0027] Figure 6 is a cross-sectional view of the auxiliary heating mechanism of the present invention;

[0028] Figure 7 is a cross-sectional view of the water filtering mechanism of the present invention;

[0029] Figure 8 It is a cross-sectional view of the water filtering mechanism of the present invention.

[0030] In the figure: 1. purification tank; 2. assembly hole; 3. discharge mechanism; 301. water-proof chamber; 302. water filter chamber; 303. support plate; 304. exhaust chamber; 305. exhaust hole 1; 306. air intake; 307. flange; 308. exhaust hole 2; 31. flow guide mechanism; 311. main air pipe; 312. return pipe; 313. waterproof edge; 314. flow guide groove; 315. flow guide port; 316. waterproof cover; 32. auxiliary heating mechanism; 321. heat conduction ring; 322. connecting rib; 323. resistance wire; 324. heat conduction port; 33. water filter mechanism; 331. flow guide pipe; 332. check disc; 333. fixing sleeve; 334. filter sleeve; 335. filter hole; 336. buoyancy cover; 337. spring; 4. exhaust port. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] For example, see Figure 1-Figure 4 and Figure 7-Figure 8 The present invention provides a technical solution: a biological deodorization filter tank, including a purification tank 1, the outer wall of the purification tank 1 is provided with an assembly hole 2, and the inner wall of the purification tank 1 is provided with an exhaust port 4, including:

[0033] The discharge mechanism 3 is arranged on the inner wall of the purification tank 1, and the discharge mechanism 3 includes a water-blocking chamber 301, the inner wall of the water-blocking chamber 301 is fixedly connected to the outer wall of the water filter chamber 302, the inner wall of the water filter chamber 302 is fixedly connected to the outer wall of the support plate 303, the outer wall of the support plate 303 is fixedly connected to the outer wall of the exhaust chamber 304, an exhaust hole 1 305 is provided on the top of the outer wall of the exhaust chamber 304, the outer wall of the water-blocking chamber 301 is fixedly connected to the inner wall of the air intake row 306, the outer wall of the air intake row 306 is fixedly connected with a flange 307, the inner wall of the air intake row 306 is provided with an exhaust hole 2 308, a flow guide mechanism 31 is provided inside the water-blocking chamber 301, and an auxiliary heating mechanism 32 is provided inside the water-blocking chamber 301;

[0034] The water filtering mechanism 33 is arranged inside the water filtering bin 302. The water filtering mechanism 33 includes a guide tube 331. The outer wall of the guide tube 331 is fixedly connected to the bottom of the inner wall of the exhaust bin 304. The bottom of the guide tube 331 is fixedly connected to the top of the check disk 332. The outer wall of the guide tube 331 is slidably connected to the inner wall of the buoyancy cover 336. The outer wall of the guide tube 331 is provided with a spring 337. One end of the spring 337 is fixedly connected to the bottom of the exhaust bin 304, and the other end is fixedly connected to the top of the buoyancy cover 336. The buoyancy cover 336 is made of polyurethane foam, which has strong buoyancy and can maintain good mechanical properties. The water collected in the water filtering bin 302 passes through the buoyancy of the buoyancy cover 336 to compress the spring 337, isolate the impurities, and then filter the water collected in the water filtering bin 302 through the filter hole 335 opened on the outer wall of the filter sleeve 334 for reuse, thereby effectively reducing costs.

[0035] The water filtering mechanism 33 also includes a fixed sleeve 333, the outer wall of the fixed sleeve 333 is fixedly connected to the inner wall of the water filtering chamber 302, the inner wall of the fixed sleeve 333 is fixedly connected to the outer wall of the filter sleeve 334, and the outer wall of the filter sleeve 334 is provided with a filter hole 335. The water flow generated inside the purification tank 1 is gathered at the bottom of the purification tank 1 and flows along the outer wall of the support plate 303 to the inside of the water filtering chamber 302. During this period, the water flow will carry impurities, which will be filtered through the buoyancy cover 336 and the filter holes 335 provided on the outer wall of the filter sleeve 334 and then collected into the water-isolating chamber 301, which can effectively keep the inside of the water-isolating chamber 301 clean while preventing the auxiliary heating mechanism 32 from causing a burden when heating water;

[0036] The buoyancy cover 336 is squeezed and contacted with the outer wall of the filter sleeve 334 by the spring 337, and the outer wall of the buoyancy cover 336 is slidably connected with the outer wall of the support plate 303. The bottom of the filter sleeve 334 is lower than the highest point of the inner wall of the check disk 332. The water collected and diverted to the inside of the water barrier 301 by the guide tube 331 and the filter sleeve 334 will be temporarily retained in the recess of the outer wall of the check disk 332. At this time, the bottom of the filter sleeve 334 is placed in the recess of the check disk 332, so that the filter sleeve 334 collects the temporarily retained water through the check disk 332 to seal, thereby preventing gas backflow, and does not affect the discharge of water collected in the exhaust chamber 304 and the water filter chamber 302 into the water barrier 301.

[0037] The top of the outer wall of the exhaust bin 304 passes through the exhaust port 4, and the top of the outer wall of the exhaust bin 304 protrudes from the bottom of the inner wall of the purification tank 1. The outer wall of the air intake row 306 passes through the outer wall of the water-proof bin 301 and is fixedly connected to the inner wall of the water-proof bin 301. The exhaust hole 2 308 passes through the inner wall of the air intake row 306 and is connected to the inside of the water-proof bin 301.

[0038] The working principle of this embodiment is as follows: when the biological deodorization filter tank is put into use, the filter material is put into the purification tank 1, and the odorous gas discharge pipe is fixedly connected to the flange 307 fixedly connected to the outer wall of the air inlet 306 through the assembly hole 2, and the odorous gas is discharged to the water-proof chamber 301 for buffering through the exhaust hole 2 308 opened on the inner wall of the air inlet 306, so that the odorous gas is slowly discharged to the exhaust chamber 304 through the guide mechanism 31 in the water-proof chamber 301 and discharged to the interior of the purification tank 1 through the exhaust hole 1 305 opened on the outer wall of the exhaust chamber 304 for filtration and purification. The water generated in the process of filtering and purifying the odorous gas by the filter material will be concentrated at the bottom of the purification tank 1, and will flow into the water filter chamber 302 along the outer wall of the support plate 303 through the gap between the exhaust port 4 and the exhaust chamber 304. At the same time, a small amount of water will flow into the exhaust chamber 304 through the exhaust hole 1 305 and be concentrated at the bottom of the exhaust chamber 304. The water entering the exhaust chamber 304 will pass through the guide pipe 331 The filter sleeve 334 is exposed while the impurities are blocked on the outer wall of the buoyancy cover 336. The filter sleeve 334 is exposed while the impurities are blocked on the outer wall of the buoyancy cover 336. The filter sleeve 334 is exposed while the impurities are blocked on the outer wall of the buoyancy cover 336. The filter sleeve 334 is exposed while the impurities are blocked on the outer wall of the buoyancy cover 336. The filter sleeve 334 is exposed while the impurities are blocked on the outer wall of the buoyancy cover 336. The filter sleeve 334 is exposed while the impurities are blocked on the outer wall of the buoyancy cover 336. The filter sleeve 334 is exposed while the impurities are blocked on the outer wall of the buoyancy cover 336. The filter sleeve 334 is exposed while the impurities are blocked. The impurities are filtered through the filter holes 335 on the outer wall of the filter sleeve 334 ...

[0039] For example 2, please refer to Figure 5 The present invention provides a technical solution: the guide mechanism 31 includes a main air pipe 311, the outer wall of the main air pipe 311 is fixedly connected to the inner wall of the watertight chamber 301, the outer wall of the main air pipe 311 is fixedly connected to one end of the return pipe 312 close to the main air pipe 311, the bottom of the main air pipe 311 is fixedly connected to the top of the waterproof edge 313, and the outer wall of the waterproof edge 313 is provided with a guide groove 314. The malodorous gas discharged into the watertight chamber 301 may contain water vapor, which will condense into water droplets during the sedimentation process inside the watertight chamber 301, preventing the droplets from entering the main air pipe 311 and affecting the discharge of the malodorous gas. The guide groove 314 provided on the outer wall of the waterproof edge 313 effectively guides the water droplets and quickly drips them, effectively preventing the water droplets from entering the guide pipe 331 and affecting the gas discharge efficiency.

[0040] One end of the return pipe 312 away from the main air pipe 311 is fixedly connected to the outer wall of the guide port 315, and the top of the main air pipe 311 is fixedly connected to the bottom of the waterproof cover 316. There are three groups of guide mechanisms 31, and the three groups of guide mechanisms 31 are equidistantly arranged on the inner wall of the watertight compartment 301 with the center line of the watertight compartment 301 as the rotation axis. The three groups of guide mechanisms 31 can effectively utilize the internal space of the watertight compartment 301 to allow the malodorous gas to settle in the watertight compartment 301 and effectively exhaust the gas;

[0041] The outer wall of the main air pipe 311 passes through the water filter chamber 302 and the exhaust chamber 304, so that the bottom of the waterproof cover 316 is fixedly connected to the top of the main air pipe 311 in the exhaust chamber 304, and the outer wall of the return pipe 312 is fixedly connected to the outer wall of the main air pipe 311 on the inner wall of the water-proof chamber 301.

[0042] The working principle of this embodiment is as follows: the malodorous gas enters the watertight compartment 301 through the air inlet 306 and then enters the exhaust compartment 304 through the main air pipe 311. When the malodorous gas carries water vapor, in order to prevent the water vapor from condensing into water droplets inside the watertight compartment 301 and entering the main air pipe 311, a waterproof edge 313 is installed at the bottom of the main air pipe 311. The guide groove 314 on the outer wall of the waterproof edge 313 effectively guides the water droplets and makes them drip quickly. When the malodorous gas is discharged from the main air pipe 311, the waterproof edge 313 at the top of the main air pipe 311 The water cover 316 can effectively prevent the water vapor inside the exhaust chamber 304 from falling into the main air pipe 311. At the same time, when the malodorous gas is discharged from the main air pipe 311, a negative pressure is formed inside the main air pipe 311. The water vapor inside the water-proof chamber 301 is sucked into the main air pipe 311 through the reflux pipe 312 and discharged, thereby effectively diluting the malodorous gas and preventing the filtering material in the purification tank 1 from being overloaded and causing the filtering effect to decrease. At the same time, the water vapor can keep the microorganisms in the filtering material inside the purification tank 1 active, thereby improving the purification efficiency.

[0043] Example 3, based on Example 1, please refer to Figure 6 The present invention provides a technical solution: the auxiliary heating mechanism 32 includes a connecting rib 322, the end of the connecting rib 322 close to the water-blocking bin 301 is fixedly connected to the inner wall of the water-blocking bin 301, the end of the connecting rib 322 away from the inner wall of the water-blocking bin 301 is fixedly connected to the outer wall of the heat-conducting ring 321, the inner wall of the heat-conducting ring 321 is fixedly connected to the outer wall of the resistance wire 323, and a heat-conducting port 324 is opened on the top of the outer wall of the heat-conducting ring 321.

[0044] The working principle of this embodiment is as follows: heating is performed by the resistance wire 323 and the heat is guided by the heat-conducting ring 321, so that the heat is concentrated on the bottom of the inner wall of the water-proof chamber 301, and the bottom of the inner wall of the water-proof chamber 301 is heated to evaporate the water entering the water-proof chamber 301, and the water is mixed with the malodorous gas in the main air pipe 311 through the reflux pipe 312 to be diluted and refluxed to the inside of the purification tank 1, so that the filter material in the purification tank 1 is kept moist, and the malodorous gas can be effectively attached to the surface of the filter material in the purification tank 1 by mixing with water vapor, so as to be effectively filtered.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biological deodorization filter tank, comprising a purification tank (1), wherein the outer wall of the purification tank (1) is provided with an assembly hole (2), and the inner wall of the purification tank (1) is provided with an exhaust port (4), characterized in that: Also includes: A discharge mechanism (3), the discharge mechanism (3) being arranged on the inner wall of the purification tank (1), the discharge mechanism (3) comprising a water-blocking chamber (301), the inner wall of the water-blocking chamber (301) being fixedly connected to the outer wall of the water-filtering chamber (302), the inner wall of the water-filtering chamber (302) being fixedly connected to the outer wall of the support plate (303), the outer wall of the support plate (303) being fixedly connected to the outer wall of the exhaust chamber (304), an exhaust hole 1 (305) being provided at the top of the outer wall of the exhaust chamber (304), the outer wall of the water-blocking chamber (301) being fixedly connected to the inner wall of an air intake row (306), the outer wall of the air intake row (306) being fixedly connected to a flange (307), the inner wall of the air intake row (306) being provided with an exhaust hole 2 (308), a flow guide mechanism (31) being provided inside the water-blocking chamber (301), and an auxiliary heating mechanism (32) being provided inside the water-blocking chamber (301); A water filtering mechanism (33), the water filtering mechanism (33) being arranged inside the water filtering bin (302), the water filtering mechanism (33) comprising a flow guide pipe (331), the outer wall of the flow guide pipe (331) being fixedly connected to the bottom of the inner wall of the exhaust bin (304), the bottom of the flow guide pipe (331) being fixedly connected to the top of the non-return plate (332), the outer wall of the flow guide pipe (331) being slidably connected to the inner wall of the buoyancy cover (336), the outer wall of the flow guide pipe (331) being provided with a spring (337), one end of the spring (337) being fixedly connected to the bottom of the exhaust bin (304), and the other end being fixedly connected to the top of the buoyancy cover (336).

2. A biological deodorization filter according to claim 1, characterized in that: The water filtering mechanism (33) further comprises a fixing sleeve (333), the outer wall of the fixing sleeve (333) being fixedly connected to the inner wall of the water filtering chamber (302), the inner wall of the fixing sleeve (333) being fixedly connected to the outer wall of the filter sleeve (334), and the outer wall of the filter sleeve (334) being provided with a filter hole (335).

3. A biological deodorization filter according to claim 1, characterized in that: The flow guiding mechanism (31) comprises a main air pipe (311), the outer wall of the main air pipe (311) is fixedly connected to the inner wall of the watertight compartment (301), the outer wall of the main air pipe (311) is fixedly connected to an end of a return pipe (312) close to the main air pipe (311), the bottom of the main air pipe (311) is fixedly connected to the top of a waterproof edge (313), and a flow guiding groove (314) is provided on the outer wall of the waterproof edge (313).

4. A biological deodorization filter according to claim 3, characterized in that: The end of the return pipe (312) away from the main air pipe (311) is fixedly connected to the outer wall of the guide port (315), and the top of the main air pipe (311) is fixedly connected to the bottom of the waterproof cover (316). The number of the guide mechanisms (31) is three groups, and the three groups of guide mechanisms (31) are equidistantly arranged on the inner wall of the watertight compartment (301) with the center line of the watertight compartment (301) as the rotation axis.

5. The biological deodorization filter according to claim 1, characterized in that: The auxiliary heating mechanism (32) comprises a connecting rib (322), wherein one end of the connecting rib (322) close to the water-blocking bin (301) is fixedly connected to the inner wall of the water-blocking bin (301), and one end of the connecting rib (322) away from the inner wall of the water-blocking bin (301) is fixedly connected to the outer wall of a heat-conducting ring (321), and the inner wall of the heat-conducting ring (321) is fixedly connected to the outer wall of the resistance wire (323), and a heat-conducting port (324) is provided at the top of the outer wall of the heat-conducting ring (321).

6. A biological deodorization filter according to claim 4, characterized in that: The outer wall of the main air pipe (311) penetrates the water filter chamber (302) and the exhaust chamber (304), so that the bottom of the waterproof cover (316) is fixedly connected to the top of the main air pipe (311) in the exhaust chamber (304), and the outer wall of the return pipe (312) is fixedly connected to the outer wall of the main air pipe (311) on the inner wall of the water-isolating chamber (301).

7. The biological deodorization filter according to claim 1, characterized in that: The buoyancy cover (336) is pressed into contact with the outer wall of the filter sleeve (334) by the spring (337), and the outer wall of the buoyancy cover (336) is slidably connected to the outer wall of the support plate (303), and the bottom of the filter sleeve (334) is lower than the highest point of the inner wall of the check disc (332).

8. The biological deodorization filter according to claim 1, characterized in that: The top of the outer wall of the exhaust bin (304) passes through the exhaust port (4), and the top of the outer wall of the exhaust bin (304) protrudes from the bottom of the inner wall of the purification tank (1); the outer wall of the air intake row (306) passes through the outer wall of the water-proof bin (301) and is fixedly connected to the inner wall of the water-proof bin (301); the second exhaust hole (308) passes through the inner wall of the air intake row (306) and is connected to the inside of the water-proof bin (301).

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