A biological trickling filter tower exhaust gas treatment device

Abstract

This invention belongs to the field of waste gas treatment technology and discloses a biological trickling filter waste gas treatment device, including a box body. An air inlet pipe is provided on the bottom wall of the box body, and an exhaust pipe is provided on the top wall of the box body. A packing frame is fixedly installed in the inner cavity of the box body. A spray pipe is located at the top of the packing frame inside the box body. A control mechanism is provided in the inner cavity of the box body. The control mechanism includes a material turning component and a spreading component. The material turning component includes a circulation part and a driving part. The spreading component includes a pusher plate, a support part, and a telescopic part. The support part is located in the inner cavity of the box body and connected to the pusher plate. The telescopic part is connected to the support part. By setting the circulation part and the driving part to cooperate with each other, the material at the bottom of the packing frame can be circulated and turned to the upper surface, so that the material in the packing frame can fully contact the sprayed nutrient solution, effectively improving the growth effect of microorganisms in the material.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, specifically a biological trickling filter waste gas treatment device. Background Technology

[0002] Biotrickling filtration is a biological treatment technology that falls between biofiltration and bioscrubbers. It boasts advantages such as high biomass, easily controllable reaction conditions, and high purification efficiency, making it particularly suitable for treating organic waste gases. The biotrickling filter is equipped with packing material for microbial growth, providing ideal conditions for microbial development. By spraying a liquid containing nutrients necessary for microbial growth downwards from the top of the filter, waste gas entering the filter undergoes simultaneous absorption and biodegradation, thus purifying the waste gas.

[0003] In traditional bio-trickling filter towers, the spray system sprays nutrient solution directly from the top of the tower down onto the packing layer. Because the packing layer has a certain thickness, the nutrient solution sprayed from the top of the tower is difficult to distribute evenly. In particular, the lower packing layer cannot fully contact the nutrient solution, resulting in insufficient nutrition for the microorganisms in the packing layer, which affects the growth of the microorganisms and leads to poor exhaust gas purification effect. Summary of the Invention

[0004] The purpose of this invention is to provide a bio-trickling filter exhaust gas treatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A biological trickling filter exhaust gas treatment device includes a housing. An air inlet pipe is provided on the bottom wall of the housing, and an exhaust pipe is provided on the top wall. A packing frame is fixedly installed inside the housing, and vent holes are provided on the surface of the packing frame. A feed pipe and a side door are provided on the side wall of the housing. A spray pipe located at the top of the packing frame is provided inside the housing. A control mechanism is provided inside the housing, including a material turning component and a spreading component. The material turning component includes a circulation part and a drive part. The circulation part is located on the inner side wall of the packing frame, and the drive part is located inside the packing frame and connected to the circulation part. The drive part controls the circulatory movement of materials at different depths within the packing frame by cooperating with the circulation part. The spreading component includes a pusher plate, a support part, and a telescopic part. The support part is located inside the housing and connected to the pusher plate, and is used to position the pusher plate within the packing frame. The telescopic part is connected to the support part and is used to control the reciprocating movement of the pusher plate in the horizontal direction.

[0007] As a further aspect of the present invention: the circulation section includes a bearing ring rotatably mounted on the inner sidewall of the pusher frame, and a plurality of flipping plates distributed in an annular pattern at equal intervals are fixedly mounted on the surface of the bearing ring.

[0008] As a further aspect of the present invention: the driving unit includes an annular toothed ring disposed on the inner sidewall of the bearing ring, the surface of the flipping plate is provided with an opening, a transmission shaft is rotatably mounted in the inner cavity of the box, a transmission disc is fixedly mounted on the surface of the transmission shaft, an arc-shaped transmission rack is disposed on the surface of the transmission shaft, and one end of the transmission shaft extends to the outside of the box and is connected to a motor.

[0009] As a further embodiment of the present invention: the support part includes a fixing plate fixedly installed on two inner side walls opposite to the box body, a guide rod fixedly installed on the surface of the fixing plate, a pusher plate slidably installed on the surface of the guide rod, a return spring fixedly installed on the surface of the fixing plate, and the telescopic end of the return spring sleeved on the outside of the guide rod and connected to the pusher plate.

[0010] As a further aspect of the present invention: the telescopic part includes a take-up roller rotatably mounted inside the housing cavity, a traction cable is wound on the surface of the take-up roller, the end of the traction cable away from the take-up roller is connected to a pusher plate, and a positioning toothed plate is fixedly mounted on the surface of the take-up roller, the positioning toothed plate meshing with a transmission rack.

[0011] As a further aspect of the present invention, a positioning block is fixedly installed between the inner side wall of the box and the outer side wall of the packing frame.

[0012] As a further embodiment of the present invention, a limit baffle is fixedly installed at the end of the guide rod away from the fixed plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are: by setting the circulation part and the driving part to cooperate with each other, the material at the bottom of the packing frame can be circulated and turned to the upper surface, so that the material in the packing frame can fully contact the sprayed nutrient solution, effectively improving the growth effect of microorganisms in the material. This solves the problem that the sprayed nutrient solution is difficult to distribute evenly, and the lower packing layer cannot fully contact the nutrient solution, resulting in insufficient nutrition for microorganisms in the packing layer.

[0014] By setting up a support section and a telescopic section to work together, the pusher plate can be controlled to move back and forth horizontally within the filler frame. The pusher plate can spread the material flipped to the upper surface evenly, further controlling the material to fully contact the nutrient solution and improving the spraying effect. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a bio-trickling filter exhaust gas treatment device provided in an embodiment of the present invention.

[0016] Figure 2 This is a schematic front view of a bio-trickling filter exhaust gas treatment device provided in an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the casing in a bio-trickling filter exhaust gas treatment device provided in an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the packing frame and its connection structure in a bio-trickling filter exhaust gas treatment device provided in an embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the tipping plate and its connection structure in a bio-trickling filter exhaust gas treatment device provided in an embodiment of the present invention.

[0020] Figure 6 This is a schematic diagram of the pusher plate and its connection structure in a bio-trickling filter exhaust gas treatment device provided in an embodiment of the present invention.

[0021] The components are: 1-box body, 11-inlet pipe, 12-exhaust pipe, 2-filler frame, 21-feed pipe, 22-side door, 3-control mechanism, 31-tilting assembly, 311-circulation part, 3111-bearing ring, 3112-tilting plate, 312-drive part, 3121-gear ring, 3122-opening, 3123-drive shaft, 3124-drive disc, 3125-drive rack, 3126-motor, 32-paving assembly, 321-push plate, 322-support part, 3221-fixing plate, 3222-guide rod, 3223-reset spring, 323-telescopic part, 3231-winding roller, 3232-positioning gear disc, 3233-traction cable, 4-positioning block, 5-limiting baffle, 6-spray pipe. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0023] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0024] like Figure 1 , Figure 2 , Figure 3The diagram shown illustrates the structure of a biological trickling filter exhaust gas treatment device according to an embodiment of the present invention. It includes a housing 1, an inlet pipe 11 on the bottom wall of the housing 1, an exhaust pipe 12 on the top wall of the housing 1, a packing frame 2 fixedly installed inside the housing 1, air vents on the surface of the packing frame 2, a feed pipe 21 on the side wall of the housing 1, a side door 22 on the side wall of the housing 1, a spray pipe 6 located at the top of the packing frame 2 inside the housing 1, and a control mechanism 3 inside the housing 1. The control mechanism 3 includes a material turning component 31 and a spreading component 32. The material turning component 31 includes a circulation section 311 and a drive section. 312, the circulation part 311 is located on the inner side wall of the packing frame 2, and the drive part 312 is located inside the packing frame 2 and connected to the circulation part 311. The drive part 312 controls the material circulation movement at different depths inside the packing frame 2 by cooperating with the circulation part 311. The paving component 32 includes a pusher plate 321, a support part 322 and a telescopic part 323. The support part 322 is located in the inner cavity of the box 1 and connected to the pusher plate 321. The support part 322 is used to position the pusher plate 321 in the inner cavity of the packing frame 2. The telescopic part 323 is connected to the support part 322 and is used to control the pusher plate 321 to move back and forth in the horizontal direction.

[0025] Material is loaded into the packing frame 2 through the feed pipe 21. During use, nutrient solution is sprayed onto the surface of the material inside the packing frame 2 through the spray pipe 6. The nutrient solution promotes the growth of microorganisms in the material. Waste gas is transported to the inner cavity of the box 1 through the air inlet pipe 11. When the waste gas moves in the material inside the packing frame 2, the microorganisms in the material can simultaneously absorb and biodegrade the waste gas, thereby purifying it. When spraying nutrient solution onto the material, the drive unit 312 and the circulation unit 311 work together to continuously turn the material at the bottom of the packing frame 2 to the upper surface, so that the nutrient solution sprayed from the surface of the spray pipe 6 can fully contact the material inside the packing frame 2, effectively improving the growth effect of microorganisms in the material. The telescopic unit 323 and the support unit 322 work together to control the pusher plate 321 to move back and forth on the upper surface of the material. When the material at the bottom turns to the upper surface, the pusher plate 321 can spread the material evenly, further improving the contact effect between the material and the sprayed nutrient solution.

[0026] like Figure 2 , Figure 3 , Figure 5 As shown, in a preferred embodiment of the present invention, the circulation part 311 includes a bearing ring 3111 rotatably mounted on the inner side wall of the pusher frame 2, and a plurality of flipping plates 3112 distributed in an annular pattern are fixedly mounted on the surface of the bearing ring 3111.

[0027] The bearing ring 3111 positions multiple turning plates 3112. When absorbing and treating waste gas, the drive unit 312 controls the bearing ring 3111 to rotate on the inner side wall of the packing frame 2. The bearing ring 3111 drives multiple turning plates 3112 to rotate synchronously. The turning plates 3112 can push the material at the bottom of the packing frame 2 to move upward continuously. This cycle repeats, which can control the material at different depths in the packing frame 2 to be turned to the upper surface in sequence, so that the nutrient solution can fully contact the material.

[0028] like Figure 1 , Figure 2 , Figure 5 As shown, in a preferred embodiment of the present invention, the driving unit 312 includes an annular gear ring 3121 disposed on the inner sidewall of the bearing ring 3111, the surface of the flipping plate 3112 is provided with an opening 3122, the inner cavity of the housing 1 is rotatably mounted with a transmission shaft 3123, the surface of the transmission shaft 3123 is fixedly mounted with a transmission disc 3124, the surface of the transmission shaft 3124 is provided with an arc-shaped transmission rack 3125, and one end of the transmission shaft 3123 extends to the outside of the housing 1 and is connected to a motor 3126.

[0029] In use, the motor 3126 drives the transmission shaft 3123 to rotate around its own axis. The transmission shaft 3123 drives the transmission disc 3124 and the transmission rack 3125 to rotate. When the transmission rack 3125 contacts the gear ring 3121, the transmission rack 3125 and the gear ring 3121 mesh and drive, which can drive the bearing ring 3111 to rotate at the inner side wall of the packing frame 2. When the transmission rack 3125 and the gear ring 3121 separate from each other, the bearing ring 3111 stops rotating. This cycle repeats, which can control the intermittent rotation of the turning plate 3112.

[0030] like Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, in a preferred embodiment of the present invention, the support part 322 includes a fixing plate 3221 fixedly installed on the two inner side walls of the housing 1 respectively. A guide rod 3222 is fixedly installed on the surface of the fixing plate 3221. The pusher plate 321 is slidably installed on the surface of the guide rod 3222. A return spring 3223 is fixedly installed on the surface of the fixing plate 3221. The telescopic end of the return spring 3223 is sleeved on the outside of the guide rod 3222 and connected to the pusher plate 321.

[0031] Two guide rods 3222 position the pusher plate 321 within the inner cavity of the packing frame 2. The return spring 3223 applies a pushing force to the pusher plate 321, which is located on the side closest to the side wall of the packing frame 2. When the flipping plate 3112 flips the material at the bottom to the front of the pusher plate 321, the telescopic part 323 intermittently applies a pulling force to the pusher plate 321. The pusher plate 321 moves horizontally within the inner cavity of the packing frame 2. After the pusher plate 321 has moved a certain distance, the telescopic part 323 releases the pulling force on the pusher plate 321, and the return spring 3223 pushes the pusher plate 321 to move in the opposite direction back to its original position. This cycle repeats, which can control the reciprocating movement of the pusher plate 321. The pusher plate 321 can spread the flipped material evenly, so that the material can fully contact the sprayed nutrient solution.

[0032] like Figure 2 , Figure 5 , Figure 6 As shown, in a preferred embodiment of the present invention, the telescopic part 323 includes a take-up roller 3231 rotatably mounted inside the housing 1. A traction cable 3233 is wound on the surface of the take-up roller 3231. One end of the traction cable 3233 away from the take-up roller 3231 is connected to the pusher plate 321. A positioning toothed disc 3232 is fixedly mounted on the surface of the take-up roller 3231. The positioning toothed disc 3232 meshes with the transmission rack 3125.

[0033] The transmission disc 3124 drives the transmission rack 3125 to rotate. When the transmission rack 3125 contacts the positioning gear disc 3232, the transmission rack 3125 and the positioning gear disc 3232 mesh and drive each other, which can drive the take-up roller 3231 to rotate around its own axis. When the take-up roller 3231 rotates, it winds up the traction cable 3233. The traction cable 3233 pulls the pusher plate 321 to move along the surface of the guide rod 3222. When the transmission rack 3125 and the positioning gear disc 3232 separate from each other, the return spring 3223 pushes the pusher plate 321 to move in the opposite direction to its original position.

[0034] like Figure 2 , Figure 4 As shown, in a preferred embodiment of the present invention, a positioning block 4 is fixedly installed between the inner wall of the box 1 and the outer wall of the packing frame 2.

[0035] like Figure 2 , Figure 5 , Figure 6 As shown, in a preferred embodiment of the present invention, a limit baffle 5 is fixedly installed at the end of the guide rod 3222 away from the fixed plate 3221.

[0036] The working principle of this invention is as follows: the material is filled into the packing frame 2 through the feed pipe 21. During use, the nutrient solution is sprayed onto the surface of the material in the packing frame 2 through the spray pipe 6. The nutrient solution promotes the growth of microorganisms in the material. The exhaust gas is transported to the inner cavity of the box 1 through the air inlet pipe 11. When the exhaust gas moves in the material in the packing frame 2, the microorganisms in the material can simultaneously undergo absorption and biodegradation, thereby purifying the exhaust gas.

[0037] When the material is sprayed with nutrient solution, the motor 3126 drives the transmission shaft 3123 to rotate around its own axis. The transmission shaft 3123 drives the transmission disc 3124 and the transmission rack 3125 to rotate. When the transmission rack 3125 contacts the gear ring 3121, the transmission rack 3125 and the gear ring 3121 mesh and drive each other, which can drive the bearing ring 3111 to rotate at the inner side wall of the packing frame 2. When the transmission rack 3125 and the gear ring 3121 separate, the bearing ring 3111 stops rotating. This cycle repeats, which can control the intermittent rotation of the turning plate 3112. The rotation of the turning plate 3112 can push the material at the bottom of the packing frame 2 to move upward continuously. This cycle repeats, which can control the material at different depths in the packing frame 2 to be turned to the upper surface in sequence, so as to facilitate full contact between the nutrient solution and the material.

[0038] The transmission disc 3124 drives the transmission rack 3125 to rotate. When the transmission rack 3125 contacts the positioning gear disc 3232, the transmission rack 3125 and the positioning gear disc 3232 mesh and drive each other, which can drive the take-up roller 3231 to rotate around its own axis. When the take-up roller 3231 rotates, it winds up the traction cable 3233. The traction cable 3233 pulls the pusher plate 321 to move along the surface of the guide rod 3222. When the transmission rack 3125 and the positioning gear disc 3232 separate, the return spring 3223 pushes the pusher plate 321 to move in the opposite direction to its original position. When the turning plate 3112 turns the material at the bottom to the front of the pusher plate 321, the reciprocating movement of the pusher plate 321 can spread the turned material evenly, so that the material can fully contact the sprayed nutrient solution.

[0039] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A biological trickling filter exhaust gas treatment device, comprising a housing (1), wherein an air inlet pipe (11) is provided on the bottom wall of the housing (1), an exhaust pipe (12) is provided on the top wall of the housing (1), a packing frame (2) is fixedly installed in the inner cavity of the housing (1), the surface of the packing frame (2) is provided with vent holes, a feed pipe (21) is provided on the side wall of the housing (1), a side door (22) is provided on the side wall of the housing (1), and a spray pipe (6) located at the top inside the packing frame (2) is provided in the housing (1), characterized in that, The inner cavity of the box (1) is provided with a control mechanism (3), which includes a material turning component (31) and a paving component (32). The material turning assembly (31) includes a circulation part (311) and a drive part (312). The circulation part (311) is located on the inner wall of the packing frame (2), and the drive part (312) is located inside the packing frame (2) and connected to the circulation part (311). The drive part (312) controls the material circulation movement at different depths inside the packing frame (2) by cooperating with the circulation part (311). The paving assembly (32) includes a pusher plate (321), a support (322) and a telescopic part (323). The support (322) is located in the inner cavity of the box (1) and connected to the pusher plate (321). The support (322) is used to position the pusher plate (321) in the inner cavity of the packing frame (2). The telescopic part (323) is connected to the support part (322), and the telescopic part (323) is used to control the pusher plate (321) to move back and forth in the horizontal direction.

2. The bio-trickling filter exhaust gas treatment device according to claim 1, characterized in that, The circulation section (311) includes a bearing ring (3111) rotatably mounted on the inner wall of the pusher frame (2), and a plurality of flipping plates (3112) are fixedly mounted on the surface of the bearing ring (3111) in a ring-shaped and equally spaced manner.

3. The bio-trickling filter exhaust gas treatment device according to claim 2, characterized in that, The drive unit (312) includes an annular toothed ring (3121) provided on the inner wall of the bearing ring (3111), an opening (3122) is provided on the surface of the flipping plate (3112), a drive shaft (3123) is rotatably installed in the inner cavity of the box (1), a drive disc (3124) is fixedly installed on the surface of the drive shaft (3123), an arc-shaped drive rack (3125) is provided on the surface of the drive shaft (3124), and one end of the drive shaft (3123) extends to the outside of the box (1) and is connected to a motor (3126).

4. The bio-trickling filter exhaust gas treatment device according to claim 3, characterized in that, The support part (322) includes a fixing plate (3221) fixedly installed on the two inner side walls of the box (1) respectively. A guide rod (3222) is fixedly installed on the surface of the fixing plate (3221). The pusher plate (321) is slidably installed on the surface of the guide rod (3222). A return spring (3223) is fixedly installed on the surface of the fixing plate (3221). The telescopic end of the return spring (3223) is sleeved on the outside of the guide rod (3222) and connected to the pusher plate (321).

5. The bio-trickling filter exhaust gas treatment device according to claim 4, characterized in that, The telescopic part (323) includes a take-up roller (3231) rotatably mounted inside the housing (1). A traction cable (3233) is wound on the surface of the take-up roller (3231). One end of the traction cable (3233) away from the take-up roller (3231) is connected to the push plate (321). A positioning toothed disc (3232) is fixedly mounted on the surface of the take-up roller (3231). The positioning toothed disc (3232) meshes with the transmission rack (3125).

6. The bio-trickling filter exhaust gas treatment device according to claim 1, characterized in that, A positioning block (4) is fixedly installed between the inner wall of the box (1) and the outer wall of the packing frame (2).

7. The bio-trickling filter exhaust gas treatment device according to claim 4, characterized in that, A limit baffle (5) is fixedly installed at the end of the guide rod (3222) away from the fixed plate (3221).

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