Biological deodorization device for waste gas

Abstract

The utility model relates to a waste gas biological deodorization device, it relates to waste gas treatment technical field, it includes purification box and is located the mixing box of purification box bottom, the mixing box is used for storing deodorization liquid, the side wall of purification box is provided with the gas inlet pipe in penetrating mode, the bottom end of gas inlet pipe is provided with a group of exhaust pipe in communication mode, the exhaust pipe is provided with the exhaust pipe. The exhaust pipe is located in the mixing box, a plurality of exhaust ports are formed in the exhaust pipe, and one-way valves are arranged at the exhaust ports; a group of stirring shafts are rotationally arranged in the mixing box, a plurality of stirring rods are arranged on the stirring shafts, a stirring assembly used for driving the stirring shafts to rotate is arranged on the mixing box, and an air outlet pipe is arranged at the top end of the purifying box in a communicating manner. The waste gas treatment device has the advantages that waste gas and deodorization liquid are fully mixed, the waste gas treatment effect is improved, and the phenomenon that the quality of treated gas does not reach the standard is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to an exhaust gas biological deodorization device. Background Art

[0002] Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, and catering, and is also increasingly entering the daily life of ordinary people. With the acceleration of the urbanization process, urban sewage treatment facilities are more perfect, aiming to reduce pollution and protect the environment. As fixed municipal facilities widely distributed in the core areas of cities, a large amount of malodorous gas will be generated during the operation of municipal sewage facilities. Malodor refers to all odors that can stimulate people's olfactory trachea, cause unpleasant feelings, damage the living environment and human health. Municipal sewage not only contains a large number of bacteria and organic pollutants, but the malodor emitted by municipal sewage will also have an unignorable impact on environmental quality and people's lives.

[0003] In the related art, there is a designed exhaust gas deodorization and purification device, including a box body and a spray head located inside the box body. After the gas is introduced into the box body, water is transported to the spray head through a water pump, and the spray head sprays water mist, and the water mist contacts the exhaust gas to dilute and filter the exhaust gas. However, when the gas flow rate is relatively fast during the introduction of the exhaust gas, some exhaust gas may not necessarily come into contact with the water mist, thus affecting the exhaust gas treatment effect and resulting in the situation that the quality of the treated gas does not meet the standard. Therefore, it needs to be improved. Summary of the Utility Model

[0004] In order to fully mix the exhaust gas with the deodorant liquid, improve the exhaust gas treatment effect, and reduce the phenomenon that the quality of the treated gas does not meet the standard, the present application provides an exhaust gas biological deodorization device.

[0005] The exhaust gas biological deodorization device provided by the present application adopts the following technical solutions:

[0006] An exhaust gas biological deodorization device includes a purification box and a mixing box located at the bottom inside the purification box. The mixing box is used for storing the deodorant liquid. An air inlet pipe is penetratively arranged on the side wall of the purification box, and a group of exhaust pipes are communicated at the bottom end of the air inlet pipe. The exhaust pipes are located inside the mixing box, and a plurality of exhaust ports are arranged on the exhaust pipes, and one-way valves are arranged at the exhaust ports; a group of stirring shafts are rotatably arranged inside the mixing box, a plurality of stirring rods are arranged on the stirring shafts, and a stirring assembly for driving the stirring shafts to rotate is arranged on the mixing box; an air outlet pipe is communicated at the top end of the purification box.

[0007] By adopting the above technical solution, the waste gas enters the purification box through the intake pipe and flows in the exhaust pipe, and then is discharged through the exhaust port into the mixing box. The deodorant liquid is stored in the mixing box. The waste gas discharged through the exhaust port in the mixing box will come into contact with the deodorant liquid. Since the waste gas is insoluble in water, it will continuously rise in the deodorant liquid. At the same time, the stirring assembly drives the stirring shaft to rotate, and the stirring shaft can drive the stirring rod to stir the gas-liquid in the mixing box. The stirring rod disrupts the gas, so that the waste gas and the deodorant liquid are fully mixed, effectively filtering and deodorizing the waste gas, improving the waste gas treatment effect. After the waste gas is treated, the one-way valve can quickly seal the exhaust port, reducing the situation that the solution in the mixing box enters the exhaust pipe.

[0008] Preferably, the stirring assembly includes a first motor, a worm and a worm gear. The worm gear is arranged at one end of the stirring shaft, and the worm gear and the stirring shaft are coaxially arranged. The first motor is installed on the side wall of the mixing box. The worm is connected to the drive shaft of the first motor, and the worm is meshed with the worm gear at the same time.

[0009] By adopting the above technical solution, when waste gas is discharged through the exhaust port into the mixing box, the first motor drives the worm to rotate. The worm abuts against two worm gears at the same time, and then drives the two stirring shafts to rotate. The control is convenient and fast. At the same time, the two stirring shafts rotate simultaneously, which is beneficial to further improving the contact and filtration effect of the waste gas and the deodorant liquid after the gas enters the mixing box.

[0010] Preferably, the intake pipe includes a connecting pipe and a rotating pipe. The connecting pipe is fixedly connected to the purification box. The rotating pipe is communicated with and rotatably connected to the connecting pipe. The exhaust pipe is arranged at the end of the rotating pipe. A rotating assembly is arranged in the purification box, and the rotating assembly is used to drive the rotation between the rotating pipe and the connecting pipe.

[0011] By adopting the above technical solution, when the waste gas is discharged from the exhaust port, the rotating assembly drives the rotation between the rotating pipe and the connecting pipe. While the rotating pipe rotates, it drives the exhaust pipe to rotate in the mixing box. The exhaust pipe and the stirring shaft rotate simultaneously, which can further improve the contact effect when the waste gas and the deodorant liquid are mixed.

[0012] Preferably, the rotating assembly includes a second motor, a driving gear and a driven gear. The second motor is arranged on the side wall of the connecting pipe. The driving gear is connected to the drive shaft of the second motor. The driven gear is arranged on the side wall of the rotating pipe and is coaxially arranged with the rotating pipe. The driven gear is meshed with the driving gear.

[0013] By adopting the above technical solution, the second motor is used to drive the driving gear to rotate. The driving gear abuts against the driven gear, thereby driving the rotating pipe to rotate on the connecting pipe. When the rotating pipe rotates, it drives the two exhaust pipes to rotate. The exhaust pipes can not only be used for exhausting gas but also play a role in stirring and mixing, and the control is convenient and fast.

[0014] Preferably, a rotating ring is arranged on the outer wall of the connecting pipe. The rotating pipe is sleeved on the connecting pipe. A rotating groove is formed in the inner wall of the rotating pipe. The rotating ring is slidably arranged in the rotating groove and is adapted to the rotating groove; a sealing ring is integrally arranged on the rotating ring. A sealing groove is formed in the inner wall of the rotating groove. The sealing ring is slidably arranged in the sealing groove and is adapted to the sealing groove.

[0015] By adopting the above technical solution, when the rotating pipe rotates on the outer wall of the connecting pipe, the rotating ring slides in the rotating groove, and at the same time the sealing ring slides in the sealing groove. The cooperation between the sealing ring and the sealing groove can improve the sealing performance between the rotating pipe and the connecting pipe, thereby reducing the phenomenon of waste gas discharging through the gap between the rotating pipe and the connecting pipe.

[0016] Preferably, a support rod is arranged on the bottom wall of the rotating pipe. The support rod is coaxially arranged with the rotating pipe. One end of the support rod is rotatably connected to the rotating pipe through a bearing, and the other end of the support rod is rotatably connected to the bottom wall in the mixing tank through a bearing.

[0017] By adopting the above technical solution, when the rotating pipe rotates with the connecting pipe, the support rod supports the rotating pipe. One end of the support rod rotates with the rotating pipe, and the other end of the support rod rotates with the bottom wall in the mixing tank. The support rod effectively improves the stability of the rotating pipe when rotating in the mixing tank.

[0018] Preferably, a biological filling layer and an activated carbon layer are arranged in the purification tank. The biological filling layer is located between the activated carbon layer and the mixing tank. Inclined surfaces are arranged on the bottom walls of the biological filling layer and the activated carbon layer.

[0019] By adopting the above technical solution, the waste gas rises continuously in the purification tank after being mixed and reacted with the liquid in the mixing tank and filtered. The waste gas passes through the biological filling layer and the activated carbon layer in sequence. The biological filling layer purifies the organic matter in the waste gas by means of microbial degradation, and the activated carbon layer further filters the harmful impurities in the waste gas through activated carbon. The inclined surface increases the contact area between the waste gas and the biological filling layer and the activated carbon layer, and improves the waste gas treatment effect in an effective space.

[0020] Preferably, an installation frame is provided on the outer wall of the activated carbon layer. The activated carbon layer is located within the installation frame. Slide rails are provided on the inner wall of the purification tank. The installation frame is slidably arranged on the slide rails. An installation hole penetrates through the side wall of the purification tank. The installation frame can pass through the installation hole. The installation frame and the installation hole are mutually adapted, and the installation frame can seal the installation hole.

[0021] By adopting the above technical solution, pulling the installation frame and sliding the installation frame on the slide rails can enable the installation frame to pass through the installation hole, facilitating the replacement and maintenance of the activated carbon layer within the installation frame. After replacement, sliding the installation frame to the inside of the purification tank, the installation frame can seal the installation hole, which is beneficial to extending the service life of the activated carbon layer.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. By providing a purification tank, a mixing tank, an intake pipe, an exhaust pipe, an exhaust port, a one-way valve, a stirring shaft, stirring rods, a first motor, a worm, and a worm gear, waste gas enters the purification tank through the intake pipe and then is discharged through the exhaust port into the mixing tank. At the same time, the first motor drives the stirring shaft to rotate, and the stirring shaft can drive the stirring rods to stir the gas-liquid mixture in the mixing tank. The stirring rods disrupt the gas, enabling the waste gas to be fully mixed with the deodorizing liquid, effectively filtering and deodorizing the waste gas, and improving the waste gas treatment effect. After the waste gas treatment, the one-way valve can quickly seal the exhaust port, reducing the situation where the solution in the mixing tank enters the exhaust pipe.

[0024] 2. By providing a connecting pipe, a rotating pipe, a second motor, a driving gear, and a driven gear, when the waste gas is discharged from the exhaust port, the second motor drives the driving gear and the driven gear to rotate, causing the rotating pipe to rotate relative to the connecting pipe. While the rotating pipe rotates, it drives the exhaust pipe to rotate within the mixing tank. The simultaneous rotation of the exhaust pipe and the stirring shaft can further improve the contact effect when the waste gas is mixed with the deodorizing liquid.

[0025] 3. By providing a biological filling layer, an activated carbon layer, and an inclined surface, after the waste gas reacts and is filtered in the mixing tank, it continuously rises in the purification tank. The waste gas passes through the biological filling layer and the activated carbon layer successively. The biological filling layer purifies the organic matter in the waste gas through microbial degradation, and the activated carbon layer further filters the harmful impurities in the waste gas through the activated carbon. The inclined surface increases the contact area between the waste gas and the biological filling layer and the activated carbon layer, improving the waste gas treatment effect within an effective space. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a cross-sectional view of an exhaust gas biological deodorization device provided by an embodiment of the present application.

[0027] Figure 2It is a schematic diagram for embodying the stirring assembly in the embodiment of the present application.

[0028] Figure 3 It is a cross-sectional view for embodying the connection relationship between the rotating pipe and the connecting pipe in the embodiment of the present application.

[0029] Explanation of reference numerals: 1, purification tank; 11, mixing tank; 12, air outlet pipe; 13, biological filling layer; 14, activated carbon layer; 15, mounting hole; 2, air inlet pipe; 21, connecting pipe; 22, rotating pipe; 23, support rod; 3, exhaust pipe; 31, exhaust port; 32, one-way valve; 4, stirring shaft; 41, stirring rod; 5, stirring assembly; 51, first motor; 52, worm; 53, worm gear; 6, rotating assembly; 61, second motor; 62, driving gear; 63, driven gear; 7, rotating ring; 71, sealing ring; 8, rotating groove; 81, sealing ring; 9, mounting frame; 91, slide rail; 10, inclined surface. Detailed implementation manners

[0030] The following further Figures 1-3 describes the present application in detail with reference to the

[0031] An embodiment of the present application discloses an exhaust gas biological deodorization device. Referring to Figure 1 , it includes a purification tank 1 and a mixing tank 11. The mixing tank 11 is fixedly arranged on the bottom wall inside the purification tank 1, and the mixing tank 11 is used for storing deodorant liquid. An air inlet pipe 2 penetrates through the side wall of the purification tank 1, and an air outlet pipe 12 is communicated with the top end of the purification tank 1. A group of exhaust pipes 3 are communicated with the bottom end of the air inlet pipe 2. The two exhaust pipes 3 are symmetrically arranged, and the length direction of the exhaust pipes 3 is arranged along the horizontal direction. The exhaust pipes 3 are located inside the mixing tank 11, and a plurality of exhaust ports 31 are equidistantly arranged on the exhaust pipes 3. A one-way valve 32 is arranged at the exhaust port 31. Exhaust gas enters the purification tank 1 through the air inlet pipe 2, flows in the exhaust pipes 3, and then is discharged through the exhaust ports 31 into the mixing tank 11. The exhaust gas discharged through the exhaust ports 31 in the mixing tank 11 will contact the deodorant liquid, and the exhaust gas that is insoluble in water will continuously rise in the deodorant liquid.

[0032] Referring to Figure 1 and Figure 2, a set of stirring shafts 4 are rotatably arranged in the mixing tank 11. The length direction of the stirring shafts 4 is arranged along the width direction of the mixing tank 11, and a number of stirring rods 41 are fixedly arranged on the stirring shafts 4. A stirring assembly 5 is arranged on the mixing tank 11. The stirring assembly 5 includes a first motor 51, a worm 52 and a worm gear 53. One end of the stirring shaft 4 penetrates through the mixing tank 11 and is connected to the worm gear 53. The worm gear 53 is coaxially arranged with the stirring shaft 4. The first motor 51 is fixedly installed on the outer wall of the mixing tank 11 by bolts. The worm 52 is connected to the drive shaft of the first motor 51, and the worm 52 is meshed with the worm gear 53 at the same time. When waste gas is discharged through the exhaust port 31 and enters the mixing tank 11, the first motor 51 drives the worm 52 to rotate. The worm 52 abuts against the two worm gears 53 at the same time, and then drives the two stirring shafts 4 to rotate. The stirring shafts 4 can drive the stirring rods 41 to stir the gas-liquid in the mixing tank 11. The stirring rods 41 disrupt the gas, so that the waste gas and the deodorant liquid are fully mixed, effectively filtering and deodorizing the waste gas, improving the waste gas treatment effect. After the waste gas is treated, the one-way valve 32 can quickly seal the exhaust port 31, reducing the situation that the solution in the mixing tank 11 enters the exhaust pipe 3.

[0033] Refer to Figure 1 and Figure 3 , the intake pipe 2 includes a connecting pipe 21 and a rotating pipe 22. The connecting pipe 21 is fixed to the purification tank 1. The rotating pipe 22 is communicated with and rotatably connected to the connecting pipe 21. The rotating pipe 22 is arranged at the bottom end of the connecting pipe 21, and the rotating pipe 22 is arranged in the vertical direction. The exhaust pipe 3 is arranged at the end of the rotating pipe 22. A rotating assembly 6 is arranged in the purification tank 1. The rotating assembly 6 includes a second motor 61, a driving gear 62 and a driven gear 63. The second motor 61 is arranged on the side wall of the connecting pipe 21 by bolts. The driving gear 62 is connected to the drive shaft of the second motor 61. The driven gear 63 is arranged on the side wall of the rotating pipe 22 and is coaxially arranged with the rotating pipe 22. The driven gear 63 is meshed with the driving gear 62. When the waste gas is discharged from the exhaust port 31, the second motor 61 drives the driving gear 62 to rotate. The driving gear 62 abuts against the driven gear 63, and then drives the rotating pipe 22 to rotate on the connecting pipe 21. When the rotating pipe 22 rotates, it drives the two exhaust pipes 3 to rotate. The exhaust pipes 3 and the stirring shafts 4 rotate at the same time to stir and mix the gas and liquid, which can further improve the contact effect when the waste gas and the deodorant liquid are mixed, and then enhance the dust removal and filtration effect on the waste gas.

[0034] Refer to Figure 1, a support rod 23 is provided on the bottom wall of the rotating tube 22. The support rod 23 is arranged in the vertical direction and coaxially with the rotating tube 22. One end of the support rod 23 is rotatably connected to the rotating tube 22 through a bearing, and the other end of the support rod 23 is rotatably connected to the bottom wall in the mixing box 11 through a bearing. When the rotating tube 22 rotates with the connecting tube 21, the support rod 23 supports the rotating tube 22, and the support rod 23 effectively improves the stability of the rotating tube 22 when it rotates in the mixing box 11.

[0035] Referring to Figure 1 and Figure 3 , a rotating ring 7 is provided on the outer wall of the connecting tube 21. The rotating ring 7 is arranged along the circumferential direction of the connecting tube 21. The rotating tube 22 is sleeved on the connecting tube 21. The inner wall of the rotating tube 22 is in mutual fit with the outer wall of the connecting tube 21. A rotating groove 8 is opened on the inner wall of the rotating tube 22. The rotating ring 7 is slidably arranged in the rotating groove 8 and is mutually adapted to the rotating groove 8. A sealing ring 8171 is integrally provided on the rotating ring 7. The sealing ring 8171 is arranged along the circumferential direction of the rotating ring 7. A sealing groove is opened on the inner wall of the rotating groove 8. The sealing ring 8171 is slidably arranged in the sealing groove and is mutually adapted to the sealing groove. When the rotating tube 22 rotates on the outer wall of the connecting tube 21, the rotating ring 7 slides in the rotating groove 8, and at the same time, the sealing ring 8171 slides in the sealing groove. The cooperation between the sealing ring 8171 and the sealing groove can improve the sealing performance between the rotating tube 22 and the connecting tube 21, thereby reducing the phenomenon of waste gas discharging through the gap between the rotating tube 22 and the connecting tube 21.

[0036] Referring to Figure 1 , a biological filling layer 13 and an activated carbon layer 14 are provided in the purification box 1. The biological filling layer 13 is located between the activated carbon layer 14 and the mixing box 11. Inclined surfaces 10 are provided on the bottom walls of both the biological filling layer 13 and the activated carbon layer 14. The waste gas is mixed and reacted with the liquid in the mixing box 11 and then continuously rises in the purification box 1. The waste gas passes through the biological filling layer 13 and the activated carbon layer 14 in sequence. The biological filling layer 13 purifies the organic matter in the waste gas by means of microbial degradation, while the activated carbon layer 14 further filters the harmful impurities in the waste gas through activated carbon. The inclined surfaces 10 increase the contact area between the waste gas and the biological filling layer 13 and the activated carbon layer 14, and improve the waste gas treatment effect in an effective space.

[0037] Referring to Figure 1, an installation frame 9 is provided on the outer wall of the activated carbon layer 14. The activated carbon layer 14 is located inside the installation frame 9. A slide rail 91 is provided on the inner wall of the purification tank 1. The installation frame 9 is slidably arranged on the slide rail 91. The installation frame 9 can be disengaged from the slide rail 91. An installation hole 15 penetrates through the side wall of the purification tank 1. The installation frame 9 is flush with the installation hole 15. Pull the installation frame 9 and slide the installation frame 9 on the slide rail 91, so that the installation frame 9 can pass through the installation hole 15, which is convenient for replacing and maintaining the activated carbon layer 14 inside the installation frame 9. After replacement, slide the installation frame 9 into the interior of the purification tank 1. Since the installation frame 9 and the installation hole 15 are adapted to each other, the installation frame 9 can seal the installation hole 15, which is beneficial to extending the service life of the activated carbon layer 14.

[0038] The implementation principle of the waste gas biological deodorization device in the embodiment of the present application is as follows: when treating waste gas, the waste gas enters the purification tank 1 through the intake pipe 2, then flows into the exhaust pipe 3, and the waste gas is discharged through the exhaust port 31. The waste gas discharged through the exhaust port 31 in the mixing tank 11 will contact the deodorizing liquid, and the waste gas that is insoluble in water will continuously rise in the deodorizing liquid; at this time, the first motor 51 drives the worm 52 to rotate. The worm 52 abuts against two worm wheels 53 at the same time, and then drives two stirring shafts 4 to rotate. The stirring shafts 4 can drive the stirring rods 41 to stir the gas-liquid mixture in the mixing tank 11. The stirring rods 41 disrupt the gas, so that the waste gas and the deodorizing liquid are fully mixed; at the same time, the second motor 61 drives the driving gear 62 to rotate. The driving gear 62 abuts against the driven gear 63, and then drives the rotating pipe 22 to rotate on the connecting pipe 21, so that the exhaust pipe 3 and the stirring shaft 4 rotate at the same time to stir and mix the gas and the liquid; effectively filter and deodorize the waste gas, improve the waste gas treatment effect, and reduce the phenomenon that the quality of the treated gas does not meet the standard.

[0039] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A waste gas biological deodorization device, comprising a purification box (1) and a mixing box (11) located at the bottom of the purification box (1), wherein the mixing box (11) is used to store deodorizing liquid, characterized in that: An air inlet pipe (2) is provided through the side wall of the purification box (1); the bottom end of the air inlet pipe (2) is connected to a group of exhaust pipes (3); the exhaust pipes (3) are located in the mixing box (11); a plurality of exhaust ports (31) are provided on the exhaust pipe (3); and a one-way valve (32) is provided at the exhaust port (31); a group of stirring shafts (4) are rotatably provided in the mixing box (11); a plurality of stirring rods (41) are provided on the stirring shaft (4); and a stirring assembly (5) for driving the stirring shaft (4) to rotate is provided on the mixing box (11); and an air outlet pipe (12) is provided at the top end of the purification box (1).

2. A waste gas biological deodorization device according to claim 1, characterized in that: The stirring assembly (5) comprises a first motor (51), a worm (52) and a worm wheel (53); the worm wheel (53) is arranged at one end of the stirring shaft (4); the worm wheel (53) and the stirring shaft (4) are coaxially arranged; the first motor (51) is mounted on the side wall of the mixing box (11); the worm (52) and the driving shaft of the first motor (51) are interconnected; and the worm (52) and the worm wheel (53) are meshed with each other.

3. The waste gas biological deodorization device according to claim 1, characterized in that: The air intake pipe (2) comprises a connecting pipe (21) and a rotating pipe (22); the connecting pipe (21) and the purification box (1) are fixed to each other; the rotating pipe (22) and the connecting pipe (21) are in communication with each other and are rotatably connected; the exhaust pipe (3) is arranged at the end of the rotating pipe (22); a rotating assembly (6) is arranged in the purification box (1); the rotating assembly (6) is used to drive the rotating pipe (22) and the connecting pipe (21) to rotate.

4. A waste gas biological deodorization device according to claim 3, characterized in that: The rotating assembly (6) comprises a second motor (61), a driving gear (62) and a driven gear (63); the second motor (61) is arranged on the side wall of the connecting tube (21); the driving gear (62) is connected to the driving shaft of the second motor (61); the driven gear (63) is arranged on the side wall of the rotating tube (22) and is coaxial with the rotating tube (22); the driven gear (63) and the driving gear (62) are meshed with each other.

5. The waste gas biological deodorization device according to claim 3, characterized in that: The outer wall of the connecting tube (21) is provided with a rotating ring (7), the rotating tube (22) is sleeved on the connecting tube (21), the inner wall of the rotating tube (22) is provided with a rotating groove (8), the rotating ring (7) is slidably arranged in the rotating groove (8) and is mutually compatible with the rotating groove (8); the rotating ring (7) is integrally provided with a sealing ring (81) (71), the inner wall of the rotating groove (8) is provided with a sealing groove, the sealing ring (81) (71) is slidably arranged in the sealing groove and is mutually compatible with the sealing groove.

6. A waste gas biological deodorization device according to claim 3, characterized in that: The bottom wall of the rotating tube (22) is provided with a support rod (23), and the support rod (23) is coaxially arranged with the rotating tube (22). One end of the support rod (23) is rotatably connected to the rotating tube (22) via a bearing, and the other end of the support rod (23) is rotatably connected to the bottom wall of the mixing box (11) via a bearing.

7. The waste gas biological deodorization device according to claim 1, characterized in that: A biological filling layer (13) and an activated carbon layer (14) are arranged in the purification box (1); the biological filling layer (13) is located between the activated carbon layer (14) and the mixing box (11); and the bottom walls of the biological filling layer (13) and the activated carbon layer (14) are both provided with inclined surfaces (10).

8. The waste gas biological deodorization device according to claim 7, characterized in that: The outer wall of the activated carbon layer (14) is provided with a mounting frame (9), the activated carbon layer (14) is located in the mounting frame (9), the inner wall of the purification box (1) is provided with a slide rail (91), the mounting frame (9) is slidably arranged on the slide rail (91), the side wall of the purification box (1) passes through the mounting hole (15), the mounting frame (9) can pass through the mounting hole (15), the mounting frame (9) and the mounting hole (15) are mutually adapted, and the mounting frame (9) can seal the mounting hole (15).

Images