Integrated biological deodorization equipment based on multi-layer composite filter bed

Abstract

This invention relates to the field of industrial waste gas treatment technology, and more particularly to an integrated biological deodorization device based on a multi-layer composite filter bed. The device includes a platform, a storage silo, a water tank, a high-temperature treatment tank, and a biological filter bed. A control system is fixedly installed on the outer wall of the platform, and a flap is rotatably connected to the top outer wall. An angle sensor is installed on the bottom outer wall of the flap. The invention utilizes a first spray frame and a second spray frame. The first spray frame forms a water curtain at the feed inlet, isolating the open carriage and storage silo from the external environment and reducing the risk of cross-contamination. The nozzles on the second spray frame spray water into the carriage, increasing the flowability of the waste material, assisting in unloading, and improving work efficiency. The wastewater generated by the spraying flows into the storage silo through the inclined flap, increasing the moisture content in the waste gas generated by the high-temperature treatment tank. When the waste gas enters the biological filter bed through the exhaust pipe, the water vapor liquefies and moistens the biological filter bed.

Description

Technical Field

[0001] This invention relates to the field of industrial waste gas treatment technology, and in particular to an integrated biological deodorization device based on a multi-layer composite filter bed. Background Technology

[0002] To comprehensively enhance biosafety prevention and control capabilities and effectively block the transmission routes of diseases, a specialized high-temperature sterilization treatment plant has been built to centrally and harmlessly treat dead livestock and poultry in a resource-efficient manner. Through high-temperature sterilization, pathogenic microorganisms are thoroughly killed, achieving closed-loop management of epidemic prevention. After the transport vehicles arrive at the plant, they enter a dedicated unloading area to unload the waste into a sealed storage silo. The waste in the storage silo is then transported to the treatment tank for high-temperature sterilization through a conveying system. Finally, the exhaust gas generated during the treatment process is transported to a filter bed for filtration. However, with existing technology, both the vehicle cargo compartment and the storage bin are open during material unloading. This causes waste to come into contact with the external environment during the unloading process, thereby increasing the risk of cross-contamination and reducing operational efficiency and the reliability of epidemic prevention. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and propose an integrated biological deodorization device based on a multi-layer composite filter bed. This invention uses a first spray frame and a second spray frame. The first spray frame forms a water curtain at the feed inlet, thus isolating the open carriage and storage hopper from the external environment and reducing the risk of cross-contamination. The nozzles on the second spray frame spray water into the carriage, increasing the flowability of waste materials, assisting in material feeding, and improving work efficiency. The wastewater generated by the spraying flows into the storage hopper through an inclined flap, increasing the water content in the exhaust gas generated by the high-temperature treatment tank. When the exhaust gas enters the biological filter bed through the exhaust pipe, the water vapor liquefies and moistens the biological filter bed.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an integrated biological deodorization device based on a multi-layer composite filter bed, comprising a platform, a storage silo, a water tank, a high-temperature treatment tank, and a biological filter bed. A control system is fixedly installed on the outer wall of the platform, and a flap is rotatably connected to the top outer wall. An angle sensor is installed on the bottom outer wall of the flap. The storage silo is provided with a feed inlet facing the platform. A first spray frame is fixed on the inner wall of the feed inlet. A second spray frame is rotatably connected inside the storage silo. A pair of silo doors are slidably connected to the inner wall of the storage silo. An exhaust pipe is provided at the top of the high-temperature treatment tank, penetrating the water tank and extending to the bottom of the biological filter bed. A water pipe connected to the water tank is installed at the bottom of the biological filter bed. A solenoid valve is installed inside the water pipe. A second water pump is installed on the outer wall of the water pipe. A transmission mechanism is provided inside the storage silo, which is used to drive the silo doors to open and close and the second spray frame to swing.

[0005] Preferably, the transmission mechanism includes a motor mounted on the outer wall of the storage bin, a mounting frame provided on the top inner wall of the storage bin, a threaded section located in the mounting frame on the main shaft of the motor, a pair of smooth rod sections located on both sides of the threaded section on the main shaft of the motor, and a pair of bin doors fitted onto the threaded section by threads with opposite rotation directions.

[0006] Preferably, a spring is provided between the outer wall of each of the compartment doors and the inner wall of the mounting frame, and the motor and the angle sensor are electrically connected through the control system.

[0007] Preferably, a dial wheel is mounted on the main shaft of the motor, a bracket is fixed on the outer wall of the second spray frame, a sliding groove is provided on the outer wall of the bracket, and a sliding column that is slidably inserted into the sliding groove is fixed on the outer wall of the dial wheel.

[0008] Preferably, several sets of nozzles are installed on the outer walls of both the first and second spray frames, and a first water pump for driving the nozzles to spray water is provided on the water tank. The several sets of nozzles are linearly distributed at equal intervals, wherein the nozzles on the first spray frame face downwards, and the nozzles on the second spray frame face the flap.

[0009] Preferably, a hydraulic rod is rotatably connected to the inner wall of the platform, and the output end of the hydraulic rod is rotatably connected to the outer wall of the flap. The angle sensor and the hydraulic rod are electrically connected through a control system.

[0010] Preferably, a stop block is provided on the outer wall of the flap closer to the storage bin, and a tow hook is provided on the outer wall of the flap away from the stop block.

[0011] Preferably, the top of the high-temperature treatment tank is provided with a feed pipe that connects to the storage silo, and an auger driven by an independent power source is rotatably connected inside the feed pipe.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention, through the setting of a first spray frame and a second spray frame, enables the first spray frame to form a water curtain at the feed inlet, thereby isolating the open carriage and storage bin from the external environment and reducing the risk of cross-contamination. The nozzles on the second spray frame spray water into the carriage, thereby increasing the flowability of waste materials, assisting in material unloading, and improving work efficiency. The wastewater generated by the spraying flows into the storage bin through the inclined flap, thereby increasing the water content in the exhaust gas generated by the high-temperature treatment tank. When the exhaust gas enters the biological filter bed through the exhaust pipe, the water vapor liquefaction can moisten the biological filter bed.

[0013] 2. This invention utilizes water vapor liquefaction, and the liquefied water after the water vapor is purified by the biological filter bed can be recycled. The liquefied water collected at the bottom of the biological filter bed can be pumped into the water tank by a second water pump, thereby improving the utilization rate of water resources. In addition, the exhaust gas passes through the water tank along the exhaust pipe, which can cool the exhaust gas with water, preventing the microorganisms in the biological filter bed from being deactivated due to high temperature exhaust gas and ensuring the filtration effect.

[0014] 3. The present invention uses a flip-top to allow transport vehicles to enter the dedicated unloading area and park on the flip-top of the platform after arriving at the factory. The hydraulic rod is then activated to extend the flip-top, causing it to flip upwards. This tilts the cargo box on the flip-top toward the storage bin. The bottom of the flip-top is equipped with a stop block to limit the vehicle's tires and prevent the vehicle from slipping. The flip-top is connected to the vehicle's hook via a tow hook, forming a double safety anchor to ensure the stability of the vehicle during the flipping process and avoid the risk of rollover. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure proposed in this invention. Figure 1 ; Figure 2 This is a three-dimensional schematic diagram of the overall structure proposed in this invention. Figure 2 ; Figure 3 This is a three-dimensional sectional view of the storage silo proposed in this invention; Figure 4 This is a three-dimensional sectional view of the water tank proposed in this invention; Figure 5 This is a three-dimensional sectional view of the flip-up plate proposed in this invention; Figure 6 This is a three-dimensional schematic diagram of the storage door proposed in this invention; Figure 7 This is a three-dimensional schematic diagram of the second spray frame proposed in this invention.

[0016] Legend: 1. Platform; 11. Control system; 12. Flip plate; 122. Stop block; 123. Tow hook; 13. Hydraulic rod; 14. Angle sensor; 2. Storage bin; 21. Feed inlet; 211. First spray frame; 22. Bin door; 221. Spring; 23. Motor; 231. Smooth rod section; 232. Threaded section; 24. Dial wheel; 241. Sliding column; 26. Second spray frame; 261. Spray head; 262. Bracket; 263. Slide groove; 27. Mounting frame; 3. Water tank; 31. First water pump; 4. High temperature treatment tank; 41. Feed pipe; 42. Screwdriver; 43. Exhaust pipe; 5. Biofilter bed; 51. Water pipe; 52. Solenoid valve; 53. Second water pump. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] See Figures 1 to 7 As shown, an integrated biological deodorization device based on a multi-layer composite filter bed includes a platform 1, a storage bin 2, a water tank 3, a high-temperature treatment tank 4, and a biological filter bed 5. A control system 11 is fixedly installed on the outer wall of the platform 1, and a flap 12 is rotatably connected to the top outer wall. An angle sensor 14 is installed on the bottom outer wall of the flap 12. The storage bin 2 is provided with a feed inlet 21 facing the platform 1. A first spray frame 211 is fixed on the inner wall of the feed inlet 21. A second spray frame 26 is rotatably connected inside the storage bin 2. A pair of bin doors 22 are slidably connected to the inner wall of the storage bin 2. The top of the high-temperature treatment tank 4 is provided with an exhaust pipe 43 that penetrates the water tank 3 and extends to the bottom of the biological filter bed 5. The bottom of the biological filter bed 5 is provided with a water pipe 51 that communicates with the water tank 3. A solenoid valve 52 is installed inside the water pipe 51. A second water pump 53 is installed on the outer wall of the water pipe 51. A transmission mechanism is provided inside the storage bin 2. The transmission mechanism is used to drive the opening and closing of the silo door 22 and the swing transmission mechanism of the second spray frame 26. The transmission mechanism includes a motor 23 mounted on the outer wall of the storage silo 2. A mounting frame 27 is provided on the inner top wall of the storage silo 2. A threaded section 232 located within the mounting frame 27 is provided on the main shaft of the motor 23. A pair of smooth rod sections 231 located on both sides of the threaded section 232 are provided on the main shaft of the motor 23. A pair of silo doors 22 are fitted onto the threaded section 232 by threads with opposite directions of rotation. A spring 221 is provided between the outer wall of each silo door 22 and the inner wall of the mounting frame 27. The motor 23 and the angle sensor 14 are electrically connected through the control system 11. A dial wheel 24 is mounted on the main shaft of the machine 23. A bracket 262 is fixed on the outer wall of the second spray frame 26. A sliding groove 263 is provided on the outer wall of the bracket 262. A sliding column 241 that is slidably inserted into the sliding groove 263 is fixed on the outer wall of the dial wheel 24. Several sets of nozzles 261 are mounted on the outer walls of the first spray frame 211 and the second spray frame 26. A first water pump 31 for driving the nozzles 261 to spray water is provided on the water tank 3. Several sets of nozzles 261 are linearly distributed at equal intervals. The nozzles 261 on the first spray frame 211 have their nozzles facing downwards, and the nozzles 261 on the second spray frame 26 have their nozzles facing the flip plate 12.

[0019] It should be noted that the tilt angle of the flap 12 is detected by the angle sensor 14. When unloading, the flap 12 tilts the vehicle cargo box toward the feed inlet 21. When the detection value of the angle sensor 14 reaches the threshold, the control system 11 starts the motor 23 and the first water pump 31. The motor 23 drives the threaded section 232 to rotate. Under the action of the threaded engagement, the two compartment doors 22 move away from each other, thereby opening the storage compartment 2. At this time, the rear door of the vehicle is opened through the vehicle system, and the waste material is dumped into the storage compartment 2. When the engagement stroke of the compartment door 22 and the threaded section 232 is completed, the compartment door 22 moves onto the smooth rod section 231. At this time, the compartment door 22 remains in the normally open state and does not obstruct the rotation of the motor 23.

[0020] Meanwhile, during the above process, after the first water pump 31 is started, the nozzles 261 on the first spray frame 211 and the second spray frame 26 spray water. The first spray frame 211 forms a water curtain at the feed inlet 21, thereby isolating the open carriage and storage bin 2 from the external environment and reducing the risk of cross-contamination. The nozzles 261 on the second spray frame 26 spray water into the carriage, thereby increasing the fluidity of the waste material, assisting in material feeding, and improving work efficiency.

[0021] Wastewater from the spraying process flows into the storage silo 2 through the inclined flap 12, increasing the humidity of the waste material. This, in turn, increases the water content in the exhaust gas generated by the high-temperature treatment tank 4. When the exhaust gas enters the biofilter bed 5 through the exhaust pipe 43, the liquefied water vapor moistens the biofilter bed 5, preventing it from drying out and reducing its performance due to prolonged operation. Furthermore, the liquefied water from the purified water vapor can be recycled. The liquefied water collected at the bottom of the biofilter bed 5 can be pumped into the water tank 3 by the second water pump 53, improving water resource utilization. In addition, the exhaust gas is cooled by water cooling as it passes through the water tank 3 along the exhaust pipe 43, preventing the high-temperature exhaust gas from causing microbial growth in the biofilter bed 5. The deactivation of the material ensures the filtration effect, while simultaneously promoting the liquefaction of water vapor upon cooling, removing some moisture from the waste gas. This achieves dehumidification and cooling of the waste gas before the biological filter bed 5 is ventilated, ensuring that the biological filter bed does not become wet or deactivated. The liquefied water in the exhaust pipe 43 will flow back to the high-temperature treatment tank 4 and be discharged simultaneously with the residue. In addition, according to the actual humidity requirements of the filter bed, the heat exchange efficiency between the water vapor and the water tank 3 can be changed by altering the length of the exhaust pipe 43 located in the water tank 3 and controlling the exhaust speed of the high-temperature treatment tank 4, thereby obtaining different exhaust humidity. After unloading, the first water pump 31 is turned off to prevent excessive water from entering the storage hopper 2. Then, the motor 23 is controlled to rotate in reverse, driving the hopper door 22 to close.

[0022] Furthermore, the motor 23 drives the dial wheel 24 to rotate. With the cooperation of the sliding column 241 and the sliding groove 263, the second spray frame 26 drives the spray head 261 on it to swing up and down, thereby increasing the spray range, avoiding waste residue in the carriage, improving the unloading effect. The entire unloading process is fully enclosed with less manual intervention, reducing the risk of cross-contamination, and improving work efficiency and epidemic prevention reliability.

[0023] A hydraulic rod 13 is rotatably connected to the inner wall of platform 1. The output end of the hydraulic rod 13 is rotatably connected to the outer wall of the flap 12. An angle sensor 14 is electrically connected to the hydraulic rod 13 through the control system 11. A stop 122 is provided on the outer wall of the flap 12 near the storage bin 2, and a tow hook 123 is provided on the outer wall of the flap 12 away from the stop 122.

[0024] It should be noted that after the transport vehicle arrives at the factory area, it drives into the dedicated unloading area and stops on the flip plate 12 on platform 1. The hydraulic rod 13 is activated to extend, causing the flip plate 12 to flip upward, thereby tilting the cargo box on the flip plate 12 toward the storage bin 2. The bottom of the flip plate 12 is equipped with a stop block 122, which can limit the vehicle tires and prevent the vehicle from slipping. It is connected to the vehicle hook through the set tow hook 123 to form a double safety anchor, ensuring the stability of the whole vehicle during the flipping process and avoiding the risk of side rollover.

[0025] The top of the high-temperature treatment tank 4 is provided with a feed pipe 41 that connects to the storage bin 2, and an auger 42 driven by an independent power source is rotatably connected inside the feed pipe 41.

[0026] It should be noted that after the waste enters the storage silo 2, it is transported to the high-temperature treatment tank 4 by the auger 42. Through the high-temperature and high-pressure treatment process, it achieves thorough sterilization and protein denaturation, effectively killing various pathogenic microorganisms, including bacteria, viruses and parasites, to ensure biosafety. The treated material is in a solid-liquid mixed state, with high stability and low pathogenicity risk. After sterilization, the material is transported to a special sealed storage tank through a closed pipeline by a pump. The entire process is closed, eliminating the risk of leakage and exposure.

[0027] The biofilter bed 5 employs a three-stage filtration system, consisting of a volcanic rock layer, a ceramic granule layer, and a cypress wood covering layer, integrated within a sealed deodorization structure. Odor-laden exhaust gas from the high-temperature treatment tank 4 enters the bottom of the biofilter bed 5 through the exhaust pipe 43. The exhaust gas rises and first undergoes preliminary physical interception and moisture regulation through the volcanic rock layer. Then, it enters the ceramic granule layer, utilizing its large specific surface area and abundant microbial adhesion capacity to achieve the biodegradation of major odor components such as hydrogen sulfide, ammonia, and volatile organic compounds. The topmost cypress wood covering layer combines adsorption, shielding, and landscaping functions, further enhancing deodorization efficiency and suppressing odor dispersion.

[0028] Furthermore, when the exhaust gas passes through the exhaust pipe 43 and enters the biofilter bed 5 through the water tank 3, the exhaust gas is cooled by water to prevent the microorganisms in the biofilter bed 5 from becoming inactive due to high temperature exhaust gas. Water vapor liquefies after entering the biofilter bed 5, which can moisten the biofilter bed 5.

[0029] In addition, the outer wall of the biological filter bed 5 is provided with an observation window (not marked in the figure) to observe the water level at the bottom of the biological filter bed 5, so as to avoid the performance of the filter bed being reduced after soaking due to excessive water level.

[0030] When the moisture content in the exhaust gas discharged from the exhaust pipe 43 is insufficient to moisten the biological filter bed 5, in order to prevent the microorganisms in the biological filter bed 5 from drying out and becoming inactive due to prolonged operation, water from the water tank 3 can be pumped into the bottom of the biological filter bed 5 by the second water pump 53, and the water can be submerged in the opening of the exhaust pipe 43. This causes bubbles to be generated in the water after the exhaust gas is discharged, and the water mist formed after the bubbles burst can float upward with the exhaust gas, thereby achieving the effect of moistening the biological filter bed 5.

[0031] Working principle: After the transport vehicle arrives at the factory area, it drives into the dedicated unloading area and stops on the flip plate 12 on the platform 1. The hydraulic rod 13 is activated to extend, causing the flip plate 12 to flip upward, so that the car body on the flip plate 12 tilts towards the storage bin 2. The bottom of the flip plate 12 is equipped with a stop block 122, which can limit the vehicle tires and prevent the vehicle from slipping. It is connected to the vehicle hook through the set tow hook 123 to form a double safety anchor, ensuring the stability of the whole vehicle during the flipping process and avoiding the risk of side rollover. When the detection value of the angle sensor 14 reaches the threshold, the control system 11 starts the motor 23 and the first water pump 31. The motor 23 drives the threaded section 232 to rotate. Under the action of the threaded engagement, the two bin doors 22 move away from each other, thereby opening the storage bin 2. At this time, the rear door of the truck is opened through the vehicle system, and the waste is dumped into the storage bin 2. Meanwhile, during the above process, after the first water pump 31 is started, the nozzles 261 on the first spray frame 211 and the second spray frame 26 spray water. The first spray frame 211 forms a water curtain at the feed inlet 21, thereby isolating the open carriage and storage bin 2 from the external environment and reducing the risk of cross-contamination. The nozzles 261 on the second spray frame 26 spray water into the carriage, thereby increasing the fluidity of the waste material, assisting in material feeding, and improving work efficiency. Wastewater generated by spraying flows into storage bin 2 through inclined flap 12, thereby increasing the humidity of the waste material and increasing the water content in the exhaust gas generated by high-temperature treatment tank 4. When the exhaust gas enters the biofilter bed 5 through exhaust pipe 43, the water vapor liquefaction can moisten the biofilter bed 5, preventing the biofilter bed 5 from drying out and reducing its performance due to long-term operation. Furthermore, the liquefied water after the water vapor is purified by the biofilter bed 5 can be recycled. The liquefied water collected at the bottom of the biofilter bed 5 can be pumped into water tank 3 by the second water pump 53, improving the utilization rate of water resources. In addition, the exhaust gas can be cooled by water cooling along the exhaust pipe 43 through the water tank 3, preventing the microorganisms in the biofilter bed 5 from being deactivated due to high-temperature exhaust gas and ensuring the filtration effect. Furthermore, the motor 23 drives the dial wheel 24 to rotate. With the cooperation of the sliding column 241 and the sliding groove 263, the second spray frame 26 drives the spray head 261 on it to swing up and down, thereby increasing the spray range, avoiding waste residue in the carriage, improving the unloading effect. The entire unloading process is fully enclosed with less manual intervention, reducing the risk of cross-contamination, and improving work efficiency and epidemic prevention reliability. After the waste enters the storage silo 2, it is transported to the high-temperature treatment tank 4 by the screw conveyor 42. Through the high-temperature and high-pressure treatment process, it achieves thorough sterilization and protein denaturation, effectively killing various pathogenic microorganisms, including bacteria, viruses and parasites, to ensure biosafety. The treated material is in a solid-liquid mixed state, with high stability and low pathogenicity risk. After sterilization, the material is transported to a special sealed storage tank through a closed pipeline by a pump. The whole process is closed to eliminate the risk of leakage and exposure. Odor-containing waste gas from the high-temperature treatment tank 4 enters the bottom of the biofilter bed 5 through the exhaust pipe 43. The waste gas floats upward and first passes through the volcanic rock layer for preliminary physical interception and moisture regulation. Then it enters the ceramsite layer, which utilizes its huge specific surface area and rich microbial adhesion ability to achieve the biodegradation of the main odor components such as hydrogen sulfide, ammonia, and volatile organic compounds. The top layer of cypress wood covering also has an auxiliary adsorption function, further improving the deodorization efficiency and inhibiting the emission of odors.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated biological deodorization device based on a multi-layer composite filter bed, comprising a platform (1), a storage bin (2), a water tank (3), a high-temperature treatment tank (4), and a biological filter bed (5), characterized in that: A control system (11) is fixedly installed on the outer wall of the platform (1), and a flap (12) is rotatably connected to the top outer wall. An angle sensor (14) is installed on the bottom outer wall of the flap (12). A feed inlet (21) facing the platform (1) is provided on the storage bin (2). A first spray frame (211) is fixed on the inner wall of the feed inlet (21). A second spray frame (26) is rotatably connected inside the storage bin (2). A pair of slidable doors (22) are connected to the wall. The top of the high-temperature treatment tank (4) is provided with an exhaust pipe (43) that extends through the water tank (3) to the bottom of the biological filter bed (5). The bottom of the biological filter bed (5) is provided with a water pipe (51) that is connected to the water tank (3). A solenoid valve (52) is installed in the water pipe (51). A second water pump (53) is installed on the outer wall of the water pipe (51). A transmission mechanism is provided in the storage bin (2). The transmission mechanism is used to drive the opening and closing of the silo door (22) and the swinging of the second spray rack (26).

2. The integrated biological deodorization device based on a multi-layer composite filter bed according to claim 1, characterized in that: The transmission mechanism includes a motor (23) installed on the outer wall of the storage bin (2). A mounting frame (27) is provided on the top inner wall of the storage bin (2). A threaded section (232) located in the mounting frame (27) is provided on the main shaft of the motor (23). A pair of smooth rod sections (231) located on both sides of the threaded section (232) are provided on the main shaft of the motor (23). A pair of bin doors (22) are fitted onto the threaded section (232) by threads with opposite rotation directions.

3. The integrated biological deodorization device based on a multi-layer composite filter bed according to claim 2, characterized in that: A spring (221) is provided between the outer wall of each of the compartment doors (22) and the inner wall of the mounting frame (27), and the motor (23) and the angle sensor (14) are electrically connected through the control system (11).

4. The integrated biological deodorization device based on a multi-layer composite filter bed according to claim 3, characterized in that: A dial wheel (24) is mounted on the main shaft of the motor (23), a bracket (262) is fixed on the outer wall of the second spray frame (26), a groove (263) is provided on the outer wall of the bracket (262), and a sliding column (241) is fixed on the outer wall of the dial wheel (24) and slidably inserted into the groove (263).

5. The integrated biological deodorization device based on a multi-layer composite filter bed according to claim 1, characterized in that: Several sets of nozzles (261) are installed on the outer walls of the first spray frame (211) and the second spray frame (26). A first water pump (31) for driving the nozzles (261) to spray water is provided on the water tank (3). The several sets of nozzles (261) are linearly distributed at equal intervals. The nozzles (261) on the first spray frame (211) have their nozzles facing downwards, and the nozzles (261) on the second spray frame (26) face the flap (12).

6. The integrated biological deodorization device based on a multi-layer composite filter bed according to claim 1, characterized in that: A hydraulic rod (13) is rotatably connected to the inner wall of the platform (1), and the output end of the hydraulic rod (13) is rotatably connected to the outer wall of the flap (12). The angle sensor (14) is electrically connected to the hydraulic rod (13) through the control system (11).

7. An integrated biological deodorization device based on a multi-layer composite filter bed according to claim 6, characterized in that: A stop (122) is provided on the outer wall of the flap (12) near the storage bin (2), and a tow hook (123) is provided on the outer wall of the flap (12) away from the stop (122).

8. The integrated biological deodorization device based on a multi-layer composite filter bed according to claim 1, characterized in that: The top of the high-temperature treatment tank (4) is provided with a feed pipe (41) that connects to the storage bin (2), and an auger (42) driven by an independent power source is rotatably connected inside the feed pipe (41).

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