Malodorous waste gas biological reaction tower carrying filler replacement structure

Abstract

The invention relates to the technical field of waste gas treatment, in particular to a malodorous waste gas biological reaction tower carrying a filler replacement structure, which comprises a main body, a filler device is arranged in the main body, the filler device comprises a shell fixedly connected with the main body, and a switching mechanism is arranged in the shell. A first butt joint groove is formed in the position, close to the circumferential outer wall of the switching mechanism, in the shell, a second butt joint groove is formed in the position, close to the first butt joint groove, in the shell, the second butt joint groove communicates with the first butt joint groove, and the switching mechanism comprises a rotating bin rotationally connected with the inner wall of the shell. The driving motor drives the rotating disc to rotate, the pushing rod, the first spring and other components work cooperatively, the anti-clamping plate of the grid assembly is promoted to turn over and push out filler, meanwhile, the rotating bin is driven to rotate, the operation can be completed only through motor driving and linkage of all the components, manpower, material resources and time are saved, and damage to the structure in the tower is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, and in particular to a malodorous waste gas bioreactor equipped with a filler replacement structure. Background Art

[0002] In the field of malodorous waste gas treatment, bioreactors are widely used due to their high efficiency and environmental protection. They use microorganisms on the surface of the filler to decompose and transform pollutants to achieve waste gas purification. However, the fillers used in current bioreactors have many disadvantages, which seriously affect the performance of the equipment and the treatment effect.

[0003] In terms of service life, the filler is easily corroded by the complex components in the exhaust gas when used for a long time. When treating exhaust gas containing high concentrations of acid and alkali substances, the chemical structure of the filler is destroyed, and it becomes broken and powdered, and the mechanical strength is reduced. It cannot support the growth of microorganisms, resulting in a large loss of microorganisms and a greatly shortened service life. The accumulation of microbial metabolites will also block the pores, reduce the micro-contact area between gas and microorganisms, and accelerate performance degradation.

[0004] Traditional bioreactors lack the convenience of packing replacement. The packing is tightly packed and there is no reasonable replacement structure, which requires a lot of manpower, material resources and time to replace. Workers need to use complex tools to remove the old packing, which can easily damage the structure inside the tower during operation, increasing maintenance costs. Summary of the invention

[0005] The present invention discloses a malodorous waste gas bioreactor equipped with a filler replacement structure to solve the problem in the above-mentioned background technology that the fillers of the traditional bioreactor are tightly stacked and have no reasonable replacement structure, and replacement requires a lot of manpower, material resources and time. The staff use complex tools to take out the old fillers with difficulty, and the operation is easy to damage the structure inside the tower, which increases the maintenance cost.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a malodorous waste gas bioreactor equipped with a filler replacement structure, comprising a main body, a filler device is arranged inside the main body, the filler device comprises a shell fixedly connected to the main body, a switching mechanism is arranged inside the shell, a docking groove 1 is opened at a position of the circumferential outer wall of the shell near the switching mechanism, a docking groove 2 is opened at a position of the shell near the docking groove 1, and the docking groove 2 is connected to the docking groove 1; The switching mechanism includes a rotating warehouse rotatably connected to the inner wall of the shell, the rotating warehouse is provided with docking ports at the top and bottom of the rotating warehouse, docking plates are provided on both sides of the rotating warehouse, a turntable is rotatably connected between the docking plate and the rotating warehouse, a docking socket is provided on the outer wall of the docking plate, and a pushing rod is provided at a position of the outer wall of the turntable corresponding to the docking socket, one end of the pushing rod extends along the docking socket to a position close to the circumferential outer wall of the rotating warehouse, and at the same time, this end of the pushing rod is fixedly connected to a pushing plate slidably connected to the outer wall of the rotating warehouse, and a plurality of springs are provided on one side of the pushing plate, and one end of the spring is connected to a grid assembly.

[0007] The present invention is further configured such that a plurality of springs 2 are provided on the side of the grid assembly away from spring 1, one end of the spring 2 is connected to the inner wall of the shell, a drive motor is provided on one side of the outer wall of the shell near the turntable, and the output end of the drive motor passes through the shell and is fixedly connected to the turntable.

[0008] The present invention is further configured such that the grid assembly includes a connecting chain slidably connected to an inner wall of a docking groove, push plates are provided at both ends of the connecting chain, and the push plate at one end is connected to spring 2, a rotating shaft is connected to the internal damping rotation of the connecting chain, an end of the rotating shaft passes through the outside of the connecting chain and is fixedly connected to a gear, and an anti-pinch plate is provided under the rotating shaft.

[0009] The present invention is further configured such that the grid assembly also includes a movable rod slidably connected to the inner wall of the second docking groove, a docking tooth meshing with the gear is provided on the side of the movable rod close to the gear, and one end of the movable rod is connected to the spring one.

[0010] The present invention is further configured such that an air separation component is provided inside the rotating bin, and the air separation component includes an air separation cylinder fixedly connected to the inner wall of the rotating bin through a fixed rod, a plurality of air holes are evenly penetrated through the circumferential outer wall of the air separation cylinder, a slide groove is provided on the inner wall of the air separation cylinder, and a movable plate is slidably connected inside the slide groove.

[0011] The present invention is further configured such that inlet and outlet ports are provided at the top and bottom of the shell, the bottom of the shell is connected to a material receiving box through the inlet and outlet ports, a material receiving bin is provided inside the material receiving box, and an air inlet is provided on the outer wall of the material receiving box near the top.

[0012] The present invention is further configured such that a feeding box is connected to the top of the shell through a material inlet and outlet, a door is hingedly connected to one side of the feeding box, and a discharge hole is arranged at the top of the feeding box.

[0013] The beneficial effects of the malodorous waste gas bioreactor equipped with a filler replacement structure of the present invention are as follows: 1. The unique switching mechanism greatly improves the convenience of packing replacement. The drive motor drives the turntable to rotate, and then through the coordinated action of the push rod, spring and other components, the anti-pinch plate of the grid assembly is flipped to push out the packing, and the rotating bin is rotated. During the entire replacement process, the staff does not need to use complex tools to remove the old packing. It can be completed only through the motor drive and the linkage of various components, which greatly saves manpower, material resources and time, while avoiding damage to the structure inside the tower and reducing maintenance costs.

[0014] 2. The present invention can automatically adjust the gas distribution according to the waste gas flow rate through the gas distribution cylinder and the movable plate in the gas distribution assembly. When the gas flow rate is large and impacts the movable plate to move it upward, the air holes at different heights are exposed, and the waste gas is discharged to the packings at different depths, avoiding the formation of a high-speed airflow area at the bottom of the reaction tower due to narrow space or uneven airflow, reducing the high-speed airflow wear, impact vibration and impurity impact wear on the bottom packing, and effectively extending the service life of the packing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the following is a detailed description of the present invention with reference to the accompanying drawings. Detailed description.

[0016] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0017] Figure 1 It is a three-dimensional structural diagram of a malodorous waste gas bioreactor equipped with a filler replacement structure according to the present invention; Figure 2 A separation diagram of a malodorous waste gas bioreactor equipped with a filler replacement structure according to the present invention; Figure 3 This is an internal structural diagram of a packing device of a malodorous waste gas bioreactor equipped with a packing replacement structure according to the present invention; Figure 4 It is an internal bottom view of a packing device of a malodorous waste gas bioreactor equipped with a packing replacement structure according to the present invention; Figure 5 A separation diagram of a switching mechanism of a malodorous waste gas bioreactor equipped with a filler replacement structure according to the present invention; Figure 6 It is a cross-sectional view of a gas separation component of a malodorous waste gas bioreactor equipped with a filler replacement structure according to the present invention; Figure 7 This is a separation diagram of the grid components of a malodorous waste gas bioreactor equipped with a filler replacement structure according to the present invention.

[0018] The markings in the figure are: 1, main body; 2, filling device; 21, shell; 22, docking groove 1; 23, docking groove 2; 24, inlet and outlet; 25, switching mechanism; 251, rotating bin; 2511, docking port; 2512, docking plate; 2513, docking bayonet; 2514, turntable; 2515, push rod; 25151, push plate; 2516, spring 1; 2517, spring 2; 2518, grid assembly; 25181, movable rod; 25182, docking teeth; 25183, connecting chain; 25184, push plate; 25185, rotating shaft; 25186, anti-pinch plate; 25187, gear; 252, gas distribution assembly; 2521, fixed rod; 2522, gas distribution cylinder; 2523, air hole; 2524, slideway; 2525, movable plate; 3. Material receiving box; 31. Material receiving bin; 32. Air inlet; 4. Material feeding box; 41. Bin door; 42. Material discharging hole. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other; the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left" and "right" etc. indicate directions or positional relationships based on directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or a transmission connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements.

[0021] See also Figure 1-Figure 7 A malodorous waste gas bioreactor equipped with a filler replacement structure comprises a main body 1, a filler device 2 is arranged inside the main body 1, the filler device 2 comprises a shell 21 fixedly connected to the main body 1, a switching mechanism 25 is arranged inside the shell 21, a docking groove 1 22 is opened at a position of the circumferential outer wall of the shell 21 near the switching mechanism 25, a docking groove 23 is opened at a position of the shell 21 near the docking groove 1 22, and the docking groove 23 is connected to the docking groove 1 22; The switching mechanism 25 includes a rotating bin 251 rotatably connected to the inner wall of the housing 21, a docking port 2511 is provided at the top and bottom of the rotating bin 251, docking plates 2512 are provided on both sides of the rotating bin 251, a rotating disk 2514 is rotatably connected between the docking plate 2512 and the rotating bin 251, a docking bayonet 2513 is provided on the outer wall of the docking plate 2512, a push rod 2515 is provided on the outer wall of the rotating disk 2514 at a position corresponding to the docking bayonet 2513, one end of the push rod 2515 extends along the docking bayonet 2513 to a position close to the outer wall of the circumference of the rotating bin 251, and This end of the push rod 2515 is fixedly connected to a push plate 25151 which is slidably connected to the outer wall of the rotating bin 251, a plurality of springs 2516 are arranged on one side of the push plate 25151, one end of the spring 1 2516 is connected to a grid assembly 2518, a plurality of springs 2517 are arranged on the side of the grid assembly 2518 away from the spring 1 2516, one end of the spring 2 2517 is connected to the inner wall of the shell 21, a drive motor is arranged on one side of the outer wall of the shell 21 near the turntable 2514, and the output end of the drive motor passes through the shell 21 and is fixedly connected to the turntable 2514.

[0022] By adopting the above technical solution, the core component of the switching mechanism 25 is the rotating bin 251, which is flexibly connected to the inner wall of the shell 21. The top and bottom of the rotating bin 251 are cleverly provided with docking ports 2511 to facilitate the entry and exit of fillers. On both sides of the rotating bin 251, docking plates 2512 are provided, and the docking plates 2512 and the rotating bin 251 are rotatably connected through a turntable 2514. On the outer wall of the turntable 2514, a push rod 2515 is installed at a position corresponding to the docking bayonet 2513 on the docking plate 2512. One end of the push rod 2515 extends along the docking bayonet 2513 to the vicinity of the circumferential outer wall of the rotating bin 251, and is fixedly connected to a push plate 25151, which is slidably connected to the outer wall of the rotating bin 251. In order to push and fix the filler, one side of the push plate 25151 is equipped with a plurality of springs 2516, and the other end of the springs 2516 is connected to the grid assembly 2518. On the other side of the grid assembly 2518, a plurality of springs 2517 are also provided, and one end of these springs 2517 is firmly connected to the inner wall of the housing 21. In order to drive the rotating disk 2514 to rotate, a driving motor is specially installed on one side of the outer wall of the housing 21, and its output end directly penetrates the housing 21 and is fixedly connected to the rotating disk 2514, thereby realizing the flexible operation of the entire switching mechanism 25.

[0023] The grid assembly 2518 includes a connecting chain 25183 which is slidably connected to the inner wall of the docking groove 22, and push plates 25184 are provided at both ends of the connecting chain 25183, and the push plate 25184 at one end is connected to the spring 2517. The connecting chain 25183 is internally connected to a rotating shaft 25185 for damping rotation, and the end of the rotating shaft 25185 passes through the outside of the connecting chain 25183 and is fixedly connected to a gear 25187. An anti-pinch plate 25186 is provided under the rotating shaft 25185. The grid assembly 2518 also includes a movable rod 25181 which is slidably connected to the inner wall of the docking groove 23, and a docking tooth 25182 which is meshed with the gear 25187 is provided on the side of the movable rod 25181 close to the gear 25187, and one end of the movable rod 25181 is connected to the spring 1 2516.

[0024] By adopting the above technical solution, an anti-pinch plate 25186 is specially provided below the rotating shaft 25185 to provide stable support and guidance when the filler is pushed out. In addition, the grid assembly 2518 also includes a movable rod 25181 slidably connected to the inner wall of the docking groove 23, and a docking tooth 25182 meshing with the gear 25187 is installed on the side of the movable rod 25181 close to the gear 25187. The precise transmission of power is achieved through the meshing of the gear 25187 and the rack. One end of the movable rod 25181 is connected to the spring 1 2516 to ensure that the assembly can flexibly respond and reset when subjected to force.

[0025] An air distribution component 252 is arranged inside the rotating bin 251, and the air distribution component 252 includes an air distribution cylinder 2522 fixedly connected to the inner wall of the rotating bin 251 through a fixed rod 2521, a plurality of air holes 2523 are evenly penetrated through the circumferential outer wall of the air distribution cylinder 2522, a slide groove 2524 is opened on the inner wall of the air distribution cylinder 2522, and a movable plate 2525 is slidably connected inside the slide groove 2524.

[0026] By adopting the above technical solution, the gas distribution component 252 is carefully configured inside the rotating bin 251. The core of the component is the gas distribution cylinder 2522, which is firmly connected to the inner wall of the rotating bin 251 through the fixing rod 2521. A plurality of air holes 2523 are evenly distributed on the circumferential outer wall of the gas distribution cylinder 2522. These air holes 2523 are the key channels for the waste gas to enter the packing layer. In order to further optimize the gas distribution, a slide groove 2524 is specially provided on the inner wall of the gas distribution cylinder 2522, and a movable plate 2525 is slidably connected in the slide groove 2524. The movable plate 2525 can automatically adjust its position according to the flow rate of the waste gas, thereby controlling the degree of opening of the air holes 2523 at different heights, ensuring that the waste gas can be evenly and efficiently distributed to each depth of the packing layer, thereby improving the effect of biological purification.

[0027] Inlet and outlet ports 24 are provided at the top and bottom of the shell 21. The bottom of the shell 21 is connected to the material receiving box 3 through the inlet and outlet ports 24. A material receiving bin 31 is provided inside the material receiving box 3. An air inlet hole 32 is provided on the outer wall of the material receiving box 3 near the top. The top of the shell 21 is connected to the feeding box 4 through the inlet and outlet ports 24. A bin door 41 is hinged on one side of the feeding box 4, and a discharge hole 42 is provided at the top of the feeding box 4.

[0028] By adopting the above technical solution, the top and bottom of the shell 21 are cleverly designed with inlet and outlet ports 24. These openings are not only convenient for the entry and exit of the filler, but also ensure the compactness of the internal structure of the reaction tower. At the bottom of the shell 21, the inlet and outlet ports 24 are directly connected to the receiving box 3, and the receiving box 3 is equipped with a receiving bin 31 inside for collecting the replaced old filler. In order to optimize the intake efficiency of the exhaust gas, an air inlet hole 32 is specially set near the top of the outer wall of the receiving box 3 to ensure that the exhaust gas can smoothly enter the interior of the reaction tower.

[0029] The working principle and use process of the embodiment of the present invention are as follows: Under normal conditions, the docking port 2511 of the rotating bin 251 will be aligned with the inlet and outlet port 24, and the filler will be transported to the feed box 4 by opening the bin door 41. The filler will fall into the rotating bin 251 located at the top layer through the feed box 4, and the waste gas will be transported to the filler device 2 located at the bottom layer through the air inlet 32. The waste gas will enter the rotating bin 251 through the grid assembly 2518 and the docking port 2511. The waste gas will be biologically purified through the filler, and then enter the filler device 2 of the upper layer. When the waste gas enters the filler device 2, some gas will directly enter the filler. Sometimes, the gas flow rate is large, which will impact the movable plate 2525 in the gas separation assembly 252 to move it upward, and the air holes 2523 at different heights will be exposed by pushing the movable plate 2525, and then the waste gas will be discharged to the fillers at different depths through the air holes 2523.

[0030] The bottom of the reaction tower is prone to form a high-speed airflow area due to narrow space or uneven airflow. The filler at the bottom is used because of continuous friction from the high-speed airflow, which wears its outer structure, making the filler particles smaller and the surface rough. Soft plastic fillers are easily broken due to reduced mechanical strength. In addition, the filler vibrates due to the impact of the airflow, and the fillers frequently collide with each other and the inner wall of the tower, especially the corners and edges are prone to damage. The connection parts may become loose over a long period of time, destroying the stability of the overall structure. The connecting parts of the modular filler may be affected by this. Impurities such as dust and particulate matter in the exhaust gas will hit the surface of the filler with the airflow, and the sharp impurities will scratch and cause more serious wear. The accumulation of impurities will also change the state of the airflow to form vortices, aggravating impact erosion. When dealing with waste gas containing a large amount of dust, the durability of the bottom filler will be reduced due to dust coverage and wear. Therefore, the air supply will be stopped after the packing has been running for a certain period of time, and then starting from the packing device 2 at the bottom, the turntable 2514 will be driven by the driving motor first, and the rotation of the turntable 2514 will drive the push rod 2515 to move in a small range in the docking bayonet 2513, and the movement of the push rod 2515 will push the movable rod 25181 to move through the spring 1 2516, and the movement of the movable rod 25181 will drive the gear 25187 to rotate through the docking tooth 25182, and the gear 25187 drives the anti-pinch plate 25186 to flip through the rotating shaft 25185, and the anti-pinch plate 25186 will be stuck on the adjacent rotating shaft 25185 when it is flipped, and the packing stuck between the rotating shafts 25185 will be pushed out when the anti-pinch plate 25186 is stuck. After the anti-pinch plate 25186 is stuck, the movable rod 25181 will not be able to move, and at the same time, the push rod 2515 drives the rotating bin 251 to rotate through the docking plate 2512; The push rod 2515 will continue to push the spring 1 2516, but because the movable rod 25181 cannot move, the pushing force will be transmitted to the spring 2 2517 through the connecting chain 25183. However, because the strength of the spring 2 2517 is greater than that of the spring 1 2516, the spring 1 2516 will be compressed, and the grid assembly 2518 will not move. When the rotating bin 251 rotates to the docking port 2511 to separate from the inlet and outlet 24, the extrusion force will act on the spring 2 2517 to compress it, and at the same time drive the grid assembly 2518 to separate from the inlet and outlet 24. 251 continues to rotate until the upper docking port 2511 rotates to the lower position, and the filler previously located at the upper position will begin to fall. When the filler is cleared, the driving motor drives the rotating bin 251 to rotate in the opposite direction, and the rest of the synchronously start to reset. Then the upper filling device 2 starts to rotate, and the filler previously located at the bottom falls last. The filler in the bottom filling device 2 is discharged into the receiving bin 31 through rotation, and the filler located above it will fall into the filling device 2 below by flipping, and finally the filling device 2 located at the top can be filled through the feeding box 4.

[0031] In summary, compared with the prior art, the embodiments of the present invention have the following advantages: Advantage 1. The present invention realizes efficient automation of packing replacement through a unique switching mechanism 25. The driving motor drives the turntable 2514 to rotate, and then the push rod 2515 moves in the docking bayonet 2513, and the movable rod 25181 is displaced through the spring 1 2516, driving the gear 25187 and the anti-pinch plate 25186 to flip and push out the packing. Afterwards, the push rod 2515 drives the rotating bin 251 to rotate through the docking plate 2512, and the different strength characteristics of the spring 1 2516 and the spring 2 2517 are used to complete the packing replacement process in an orderly manner. The entire process does not require manual and difficult operation with the help of complex tools, which greatly saves manpower, material resources and time, avoids damage to the structure inside the tower, and reduces maintenance costs, which is unmatched by traditional bioreactors.

[0032] Advantage 2: The design of the gas distribution component 252 greatly improves the working environment of the packing. When the waste gas flow changes, the movable plate 2525 slides in the gas distribution cylinder 2522, and the air holes 2523 at different heights are exposed as needed, and the waste gas is evenly discharged to the packing at different depths. This effectively avoids the formation of a high-speed airflow area at the bottom of the reaction tower due to narrow space or uneven airflow, reduces the wear of the packing by high-speed airflow, impact vibration, and impurity impact wear, thereby significantly extending the service life of the packing. Compared with traditional biological reaction towers, it can better maintain the performance of the packing when treating waste gas containing complex components.

[0033] Advantage 3: The close cooperation between the main body 1 and the packing device 2, as well as the coordinated work of each component, ensures the high efficiency and stability of waste gas treatment. The waste gas enters from the air inlet 32 ​​and passes through each layer of the packing device 2 for biological purification in turn. The gas separation component 252 ensures the uniform distribution of the waste gas in the packing, so that the waste gas is fully in contact with the microorganisms on the surface of the packing, thereby improving the decomposition and conversion efficiency of pollutants. At the same time, the convenient packing replacement and long packing service life enable the equipment to operate continuously and stably, ensuring the high quality and high efficiency of odorous waste gas treatment, and has obvious advantages in the field of waste gas treatment technology.

[0034] Advantage 4: The structural design of the present invention fully considers various factors during the operation of the equipment. In terms of packing vibration and collision, through reasonable airflow distribution and packing fixing method, the frequent collision between packing and the inner wall of the tower is reduced, the risk of loose connection parts is reduced, and the stability of the overall structure is enhanced. For example, the grid assembly 2518 plays a certain role in fixing the packing, and to a certain extent avoids excessive displacement and collision of the packing caused by airflow impact, making the connection parts of the modular packing more stable, and compared with the traditional bioreactor, it can better maintain structural integrity in long-term operation.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A malodorous waste gas bioreactor equipped with a filler replacement structure, comprising a main body (1), characterized in that: A filling device (2) is arranged inside the main body (1), the filling device (2) comprises a shell (21) fixedly connected to the main body (1), a switching mechanism (25) is arranged inside the shell (21), a docking groove (22) is provided at a position of the outer circumferential wall of the shell (21) close to the switching mechanism (25), a docking groove (23) is provided at a position of the shell (21) close to the docking groove (22), and the docking groove (23) is communicated with the docking groove (22); The switching mechanism (25) comprises a rotating chamber (251) rotatably connected to the inner wall of the housing (21); the rotating chamber (251) is provided with docking ports (2511) at the top and bottom; docking plates (2512) are provided on both sides of the rotating chamber (251); a rotating disk (2514) is rotatably connected between the docking plates (2512) and the rotating chamber (251); a docking bayonet (2513) is provided on the outer wall of the docking plate (2512); and the outer wall of the rotating disk (2514) corresponds to the docking bayonet (2513). A push rod (2515) is provided at the position of the rotating chamber (2513), one end of the push rod (2515) extends along the docking bayonet (2513) to a position close to the circumferential outer wall of the rotating chamber (251), and at the same time, this end of the push rod (2515) is fixedly connected to a push plate (25151) that is slidably connected to the outer wall of the rotating chamber (251), and a plurality of springs (2516) are provided on one side of the push plate (25151), and one end of the springs (2516) is connected to a grid assembly (2518).

2. The malodorous waste gas bioreactor equipped with a filler replacement structure according to claim 1, characterized in that: A plurality of second springs (2517) are provided on a side of the grid assembly (2518) away from the first spring (2516); one end of the second spring (2517) is connected to the inner wall of the shell (21); a drive motor is provided on a side of the outer wall of the shell (21) near the turntable (2514); an output end of the drive motor passes through the shell (21) and is fixedly connected to the turntable (2514).

3. The malodorous waste gas bioreactor equipped with a filler replacement structure according to claim 1, characterized in that: The grid assembly (2518) comprises a connection chain (25183) slidably connected to the inner wall of the first docking groove (22), push plates (25184) are arranged at both ends of the connection chain (25183), wherein the push plate (25184) at one end is connected to the second spring (2517), the connection chain (25183) is internally connected to a rotating shaft (25185) for damping rotation, the end of the rotating shaft (25185) passes through the outside of the connection chain (25183) and is fixedly connected to a gear (25187), and an anti-pinch plate (25186) is arranged below the rotating shaft (25185).

4. The malodorous waste gas bioreactor with a filler replacement structure according to claim 3, characterized in that: The grid assembly (2518) further comprises a movable rod (25181) slidably connected to the inner wall of the second docking groove (23); a docking tooth (25182) meshingly connected to the gear (25187) is provided on a side of the movable rod (25181) close to the gear (25187); and one end of the movable rod (25181) is connected to the first spring (2516).

5. The malodorous waste gas bioreactor equipped with a filler replacement structure according to claim 1, characterized in that: An air distribution component (252) is arranged inside the rotating bin (251), and the air distribution component (252) comprises an air distribution cylinder (2522) fixedly connected to the inner wall of the rotating bin (251) via a fixing rod (2521), a plurality of air holes (2523) are evenly penetrated through the circumferential outer wall of the air distribution cylinder (2522), a sliding groove (2524) is arranged on the inner wall of the air distribution cylinder (2522), and a movable plate (2525) is slidably connected inside the sliding groove (2524).

6. The malodorous waste gas bioreactor equipped with a filler replacement structure according to claim 1, characterized in that: The shell (21) is provided with material inlet and outlet ports (24) at the top and bottom, the bottom of the shell (21) is connected to a material receiving box (3) via the material inlet and outlet ports (24), a material receiving bin (31) is provided inside the material receiving box (3), and an air inlet hole (32) is provided on the outer wall of the material receiving box (3) near the top.

7. The malodorous waste gas bioreactor equipped with a filler replacement structure according to claim 1, characterized in that: The top of the housing (21) is connected to a feeding box (4) via a feeding port (24); a door (41) is hingedly connected to one side of the feeding box (4); and a discharge hole (42) is provided at the top of the feeding box (4).

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