Microbial filter bed

Abstract

The utility model aims to provide a microorganism filter bed, including box and tumbling subassembly, tumbling subassembly includes drive piece, shaft lever, roller frame and spray pipe, drive piece is provided on the box, shaft lever is rotatingly provided on the box, one end of shaft lever is connected with drive piece, roller frame is provided on shaft lever, roller frame is used for holding packing, spray pipe is provided on the box. The water spraying pipe is arranged on the inner top wall of the box body, the water spraying direction of the water spraying pipe faces the roller frame, and when the driving part drives the shaft rod to rotate, the roller frame drives the filler to roll, so that the water spraying pipe can wash the filler at multiple angles, the roller frame comprises two clamping plates and multiple round rods, and the two clamping plates are arranged on the shaft rod in a sleeving mode; the two ends of each round rod are connected with the two clamping plates respectively, and the round rods are circumferentially distributed at equal intervals relative to the clamping plates, so that the two clamping plates and the round rods jointly form a roller frame. In this way, the roller frame is rotated to drive the filler to continuously roll over, so that the filler can be thoroughly flushed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of waste gas treatment, particularly relate to a microbial filter bed. BACKGROUND

[0002] With the acceleration of industrialization and urbanization, environmental pollution problems are increasingly prominent, among which malodor pollution as a serious environmental problem affecting people's quality of life and health has been widely concerned. Malodor substances are widely sourced, including sewage treatment plants, landfill sites, livestock and poultry farms, chemical enterprises, etc., which are complex in composition and mainly contain hydrogen sulfide, ammonia, methyl mercaptan, dimethyl disulfide and other volatile organic compounds (VOCs) and inorganic gases. These malodor substances not only have a pungent odor, but also can cause harm to the respiratory system, nervous system, circulatory system, etc. of the human body. Biological deodorization technology as an environmentally friendly, efficient and economical deodorization method has been rapidly developed in recent years. Microbial filter bed as an important application device of biological deodorization technology has the advantages of convenient operation and good treatment effect, and has broad application prospects in the field of malodor pollution control. It mainly utilizes the biofilm formed by microorganisms on the surface of the filler to adsorb, absorb and degrade the pollutants in malodor gas.

[0003] However, the existing microbial filter bed technology still has the following deficiencies in actual use: the growth and reproduction of microorganisms, the accumulation of particulate matter in waste gas and the aging and shedding of biofilm lead to filler blockage, and when regular flushing is performed, the bottom layer of filler cannot be completely flushed clean due to the accumulation of filler on the filter bed, resulting in a decrease in purification effect. In view of this, the microbial filter bed of the present application is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the deficiencies in the prior art, and provides a microbial filter bed capable of flushing each angle of the filler to improve the purification effect.

[0005] The utility model aims at overcoming the deficiencies in the prior art, and provides a microbial filter bed capable of flushing each angle of the filler to improve the purification effect.

[0006] A microbial filter bed comprises:

[0007] A box body; and

[0008] The rolling assembly comprises a driving member, a shaft, a drum frame and a water spraying pipe. The driving member is arranged on the box. The shaft is arranged on the box in a rotating manner. One end of the shaft is connected with the driving member. The drum frame is coaxially arranged on the shaft. The drum frame is used for accommodating filler. The water spraying pipe is arranged on the inner top wall of the box. The spraying direction of the water spraying pipe is towards the drum frame. When the driving member drives the shaft to rotate, the drum frame drives the filler to roll, so that the water spraying pipe can flush the filler from multiple angles. The drum frame comprises two clamping plates and a plurality of round rods. The two clamping plates are sleeved on the shaft. The two ends of each round rod are respectively connected with the two clamping plates. Each round rod is distributed at a circumferential equal distance with respect to the clamping plate, so that the two clamping plates and each round rod jointly form the drum frame.

[0009] Optionally, the rolling assembly further comprises a gate. A sliding groove is arranged on the drum frame. The gate is arranged in the sliding groove in a sliding manner. The gate is used for closing the drum frame.

[0010] Optionally, a clamping strip is arranged on the shaft. The clamping strip extends from one end of the shaft to the other end. A through hole is arranged on each of the two clamping plates. The clamping strip passes through the through hole. A clamping groove is arranged on the inner side wall of the through hole, which is matched with the clamping strip. The clamping groove is clamped with the clamping strip.

[0011] Optionally, a plurality of shafts and drum frames are arranged. The shafts are distributed on the box at intervals. A plurality of drum frames are arranged on each shaft at intervals. The drum frames on any two adjacent shafts are distributed in a staggered manner.

[0012] Optionally, the rolling assembly further comprises an eccentric disc and a conversion member. The eccentric disc is arranged on the driving member. One end of the conversion member is sleeved on the shaft. The other end of the conversion member is rotatably connected with the eccentric disc.

[0013] Optionally, the conversion member comprises a connecting rod and a plurality of rotating blocks. One end of each rotating block is sleeved on each shaft. The other end of each rotating block is rotatably connected with the connecting rod. The end of the connecting rod, which is away from the rotating block, is rotatably connected with the eccentric disc.

[0014] Optionally, the microbial filter bed further comprises a plurality of baffles, each of the baffles is arranged in the box, each of the baffles divides the box into a spraying chamber, a reaction chamber and a treatment chamber, the spraying chamber, the reaction chamber and the treatment chamber are communicated with each other, the spraying chamber is used for spraying the gas into the box, the tumbling assembly is located in the reaction chamber, and the treatment chamber is used for slowing down the flow of the gas in the box.

[0015] Optionally, the microbial filter bed further comprises a plurality of flow limiting plates, each of the flow limiting plates is located on the opposite two inner side walls of the treatment chamber, and the flow limiting plates are staggered with each other.

[0016] Optionally, the microbial filter bed further comprises a flow distribution plate, the flow distribution plate is arranged in the box, and the flow distribution plate is located in a channel communicated between the reaction chamber and the spraying chamber, and the flow distribution plate is used for guiding the gas in the spraying chamber to enter the reaction chamber uniformly.

[0017] Optionally, a plurality of perforations are formed in the flow distribution plate, and the perforations are distributed on the flow distribution plate at intervals.

[0018] Compared with the prior art, the microbial filter bed has at least the following advantages:

[0019] After the filling material is continuously tumbled by rotating the roller frame, the filling material in the roller frame continuously changes the angle towards the water spraying pipe, so that the flushing effect is improved, and the vibration generated when the roller frame tumbles the filling material can also shake off some aged biofilm and accumulated particulate matter, so that the filling material can be completely flushed clean, and the use efficiency of the filling material is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 FIG. 1 is a structural schematic view of a microbial filter bed according to an embodiment of the present application;

[0022] Figure 2 FIG. 2 is a front cross-sectional structural schematic view of the microbial filter bed according to the embodiment of the present application;

[0023] Figure 3This is a schematic diagram of a cross-sectional structure of a microbial filter bed according to one embodiment of the present invention when viewed from above;

[0024] Figure 4 for Figure 3 A partial enlarged view of middle A;

[0025] Figure 5 This is a schematic structural diagram of a plurality of roller racks installed on a shaft in one embodiment of the present invention;

[0026] Figure 6 This is a structural schematic diagram of a roller frame according to one embodiment of the present invention;

[0027] Figure 7 This is a structural diagram of the installation position of a fence door according to one embodiment of the present invention;

[0028] Figure 8 This is a schematic structural diagram of a shaft rod according to one embodiment of the present invention;

[0029] Figure 9 This is a schematic structural diagram of a rotating block according to one embodiment of the present invention;

[0030] Figure 10 This is a schematic structural diagram of an eccentric disk according to one embodiment of the present invention;

[0031] Figure 11 This is a structural schematic diagram of a diverter plate according to one embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Microbial filter bed; 10. Box body; 20. Tumbling assembly; 21. Driving member; 22. Shaft; 23. Drum frame; 24. Spray pipe; 231. Clamp; 232. Round rod; 25. Gate; 233. Slide; 221. Card bar; 26. Eccentric disk; 27. Converter; 271. Connecting rod; 272. Rotating block; 11. Spray chamber; 12. Reaction chamber; 13. Processing chamber; 28. Limiting plate; 30. Diverter plate; 40. Sealing plate; 50. Partition. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings, in which preferred embodiments of the present invention are shown.

[0035] In the description of the embodiments of the utility model, it is understood that the directions or position relations indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific direction, be constructed in a specific direction and be operated, and therefore cannot be understood as limiting the utility model.

[0036] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0037] In the embodiments of the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0038] As shown in FIG. Figures 1 to 5 As shown in FIG. In an embodiment, a microbial filter bed 1, comprising a box body 10 and a tumbling assembly 20, the tumbling assembly 20 comprises a driving member 21, a shaft 22, a drum frame 23 and a water spraying pipe 24, the driving member 21 is arranged on the box body 10, the shaft 22 is arranged on the box body 10 in rotation, and one end of the shaft 22 is connected with the driving member 21, the drum frame 23 is coaxially arranged on the shaft 22, and the drum frame 23 is used for accommodating the filler, the water spraying pipe 24 is arranged on the inner side wall of the box body 10, and the spraying direction of the water spraying pipe 24 is towards the drum frame 23, when the driving member 21 drives the shaft 22 to rotate, the drum frame 23 drives the filler to tumble, so that the water spraying pipe 24 can wash the filler at multiple angles, the drum frame 23 comprises two clamping plates 231 and a plurality of round rods 232, the two clamping plates 231 are sleeved on the shaft 22, the two ends of each round rod 232 are connected with the two clamping plates 231 respectively, and each round rod 232 is distributed at a circumferential equal distance relative to the clamping plate 231, so that the two clamping plates 231 and each round rod 232 jointly form the drum frame 23.

[0039] It should be noted that the shaft 22 is arranged in the box 10, and the two ends of the shaft 22 extend from the opposite sides of the box 10, further, the driving part 21 comprises a motor and a support frame, the support frame is arranged on the outer side wall of the box 10, the motor is arranged on the support frame, and the output end of the motor is connected with the shaft 22, so that the driving part 21 can drive the shaft 22 to rotate relative to the box 10. Further, each roller frame 23 is coaxially arranged on the shaft 22, and the roller frame 23 is used for accommodating the filler, so that when the driving part 21 drives the shaft 22 to rotate, the roller frame 23 drives the filler to overturn, so that the filler at the bottom layer can be turned to the top layer, further, the water spraying pipe 24 is arranged on the inner side wall of the box 10, and the water spraying pipe 24 is located above the roller frame 23, the water spraying pipe 24 can spray water on the roller frame 23, so that when the water spraying pipe 24 washes the filler at the top layer, the water spraying pipe 24 can wash the filler by rotating the roller frame 23 to make the filler at the bottom layer tumble on the upper layer, and after the roller frame 23 continuously drives the filler to tumble, the filler in the roller frame 23 will continuously change the angle towards the water spraying pipe 24, so as to improve the washing effect, and the vibration generated when the roller frame 23 drives the filler to tumble can also shake off some aged biological membrane and accumulated particulate matter, so that the filler can be thoroughly washed, so as to improve the use efficiency of the filler.

[0040] As shown in Figure 6 In an embodiment, the tumbling assembly 20 further comprises a barrier door 25, and the roller frame 23 is provided with a sliding groove 233, and the barrier door 25 is slidingly arranged in the sliding groove 233, and the barrier door 25 is used for closing the roller frame 23.

[0041] It should be noted that the drum frame 23 comprises two clamping plates 231 and a plurality of round rods 232, both ends of each round rod 232 are connected with the two clamping plates 231 respectively, and each round rod 232 is distributed at a circumferential equidistance relative to the clamping plates 231, so that the two clamping plates 231 and each round rod 232 jointly form the drum frame 23. Both of the two clamping plates 231 are circular structures, and both of the two clamping plates 231 are provided with grooves along the circumferential direction, the two grooves are aligned with each other, and when both ends of each round rod 232 are connected with the two clamping plates 231 respectively, the two grooves jointly form a sliding groove 233. Further, the fence door 25 comprises two edge blocks, two sliding strips and a plurality of rails, the shapes of the two edge blocks are consistent with the shapes of the two grooves, the two ends of the two edge blocks are connected by the two sliding strips respectively, so that the two edge blocks and the two sliding strips jointly form a frame body, and the plurality of rails are arranged in the frame body at intervals. Further, when the fence door 25 is slidingly located in the sliding groove 233, each rail on the fence door 25 is distributed at a circumferential relative to the two clamping plates 231 together with each round rod 232, so that each rail and each round rod 232 and the two clamping plates 231 jointly form an openable and closable drum frame 23, thereby enabling the fence door 25 to close the inside of the drum frame 23. In this way, by sliding the fence door 25 out of the sliding groove 233 to open the inside of the drum frame 23, the opening of the fence door 25 can be used to put in the filler, and after the filler is placed, the fence door 25 can be slid into the sliding groove 233 to close the drum frame 23, so as to avoid the filler from falling out of the drum frame 23 when the drum frame 23 rotates.

[0042] In an embodiment, the drum frame 23 is placed into the filler beyond the axial position of the drum frame 23, so that the filler can cover the maximum lateral area of the drum frame 23 relative to the shaft 22, so as to increase the contact area of the biological membrane on the filler and the waste gas, thereby improving the reaction efficiency.

[0043] As shown in Figure 5 , Figure 8 In an embodiment, the shaft 22 is provided with a clamping strip 221 extending from one end to the other end of the shaft 22, both of the two clamping plates 231 are provided with through holes, the clamping strip 221 passes through the through holes, and the inner side wall of the through hole is provided with a clamping groove matched with the clamping strip 221, and the clamping groove is clamped with the clamping strip 221.

[0044] It should be noted that the shaft 22 is provided with a plurality of clamping strips 221, each clamping strip 221 extends from one end of the shaft 22 to the other end, and each clamping strip 221 is spaced apart from each other. Further, the shaft 22 passes through the two through holes at the axial center positions of the two clamping plates 231. Further, the inner side wall of the through hole is provided with a clamping groove corresponding to each clamping strip 221. When the shaft 22 drives each clamping strip 221 to pass through the through hole, each clamping strip 221 is clamped in each clamping groove on the inner side wall of the through hole one by one. In this way, the shaft 22 can drive the clamping plate 231 to rotate when the shaft 22 rotates, and further drive the drum frame 23 to rotate.

[0045] As shown in Figures 2 to 5 In an embodiment, the shaft 22 and the drum frame 23 are provided with a plurality of shafts 22, each shaft 22 is spaced apart on the box body 10, and each shaft 22 is provided with a plurality of drum frames 23, and each drum frame 23 on any two adjacent shafts 22 is staggered.

[0046] It should be noted that each shaft 22 is arranged on the box body 10, and each shaft 22 is spaced apart, and the two ends of each shaft 22 extend from the two sides of the box body 10. Further, each shaft 22 is provided with a plurality of drum frames 23, and each drum frame 23 on any two adjacent shafts 22 is staggered. In order to facilitate description, two shafts 22 are defined as a first shaft 22 and a second shaft 22, and four drum frames 23 are defined as a first drum frame 23, a second drum frame 23, a third drum frame 23 and a fourth drum frame 23. The first shaft 22 and the second shaft 22 pass through the box body 10, the first drum frame 23 and the second drum frame 23 are sleeved on the first shaft 22 and are spaced apart, and the third drum frame 23 and the fourth drum frame 23 are sleeved on the second shaft 22 and are spaced apart. Further, the distance between the two shafts 22 is the distance of the diameter of one drum frame 23. Further, since the drum frames 23 are spaced apart on the shafts 22, the first drum frame 23 on the first shaft 22 is tangent to the second shaft 22, the third drum frame 23 is close to the first drum frame and tangent to the first shaft 22, the second drum frame 23 is close to the side of the third drum frame 23 away from the first drum frame 23 and tangent to the second shaft 22, and the fourth drum frame is close to the side of the second drum frame 23 away from the third drum frame 23 and tangent to the first shaft 22. In this way, the shafts 22 passing through the box body 10 are provided with a plurality of drum frames 23, and the shafts 22 are spaced apart by the diameter of one drum frame 23, so that the drum frames 23 on the shafts 22 are spaced apart and staggered to fill the box body 10. In this way, after the exhaust gas passes through the box body 10, it can completely contact the filler in the drum frame 23 to improve the purification effect.

[0047] AsFigure 1 、 Figures 9 to 10 As shown, in one embodiment, the rolling assembly 20 further includes an eccentric disk 26 and a conversion member 27. The eccentric disk 26 is disposed on the driving member 21. One end of the conversion member 27 is sleeved on the shaft 22, and the other end of the conversion member 27 is rotatably connected to the eccentric disk 26.

[0048] It should be noted that the conversion member 27 includes a connecting rod 271 and a plurality of rotating blocks 272. One end of the rotating block 272 is rotatably connected to the connecting rod 271. A locking hole is provided on the other end of the rotating block 272. A plurality of locking grooves that are compatible with the various clips 221 on the shaft 22 are provided on the inner side wall of the lock hole. When the rotating block 272 is sleeved on the end of the shaft 22 extending from the box body 10, the various locking grooves are engaged with the various clips 221. In this way, the rotating block 272 can drive the shaft 22 to rotate. Furthermore, one end of each rotating block 272 away from the shaft 22 is rotatably connected to the connecting rod 271, and the end of the connecting rod 271 away from each rotating block 272 is rotatably connected to the eccentric disk 26. The axis position of the eccentric disk 26 is set on the output shaft of the motor. In this way, when the motor drives the eccentric disk 26 to rotate, the connecting rod 271 drives each rotating block 272 to rotate at the same time, and then each shaft 22 drives each roller frame 23 to rotate to make the filler in the roller frame 23 roll.

[0049] like Figures 1 to 4 As shown, in one embodiment, the microbial filter bed 1 also includes a plurality of partitions 50, each of which is arranged in the box body 10, and each partition 50 divides the box body 10 into a spray chamber 11, a reaction chamber 12 and a processing chamber 13. The spray chamber 11, the reaction chamber 12 and the processing chamber 13 are interconnected. The spray chamber 11 is used to spray the gas entering the box body 10, the tumbling assembly 20 is located in the reaction chamber 12, and the processing chamber 13 is used to slow down the gas flow in the box body 10.

[0050] It should be noted that each partition 50 divides the box body 10 into two spray chambers 11, two processing chambers 13 and a reaction chamber 12. The two spray chambers 11 are connected to each other, one of the spray chambers 11 is connected to the air inlet, and the other spray chamber 11 is connected to the reaction chamber 12. Furthermore, the microbial filter bed 1 also includes two spray pipes, both of which are arranged on the inner top wall of the box body 10, and the two spray pipes are respectively located in the two spray chambers 11. Since many malodorous gas components such as hydrogen sulfide and ammonia are soluble in water. The water sprayed from the spray pipe can transfer these gases from the gas phase to the liquid phase, which is beneficial to the subsequent treatment of them by microorganisms. For example, ammonia is highly soluble in water. After spraying water, the ammonia in the air will dissolve in water to form ammonia water, thereby converting ammonia from gas to liquid, which is easier for microorganisms to contact and utilize. At the same time, the malodorous gas may contain some solid particulate impurities, such as dust, fiber, etc. Water spraying can capture these solid impurities by water, playing a filtering role, preventing these impurities from entering the microbial treatment area and avoiding interference with the growth and metabolic activities of microorganisms.

[0051] like Figures 2 to 3 As shown, in one embodiment, the microbial filter bed 1 further includes a plurality of flow limiting plates 28, each of which is located on two opposite inner walls of the processing chamber 13, and each of the flow limiting plates 28 is staggered.

[0052] It should be noted that the two processing chambers 13 are interconnected, with one processing chamber 13 communicating with the reaction chamber 12 and the other processing chamber 13 communicating with the air outlet. Furthermore, the flow restrictor 28 includes a plate body and a block. The block is disposed on one end of the plate body and is perpendicular to the plate body, forming a 90-degree angle between the block and the plate body. The other end of the plate body is disposed on the inner wall of the processing chamber 13, and the side of the plate body away from the block forms a 45-degree angle with the inner wall of the processing chamber 13, and the 45-degree angle is located on the side of the plate body facing the air outlet channel. Furthermore, the plates are arranged in sequence and staggered on the two opposite inner walls of the processing chamber 13, and the plates are all facing the same side of the air outlet channel, and the blocks are arranged on each plate in a one-to-one correspondence, and the blocks are all facing the same side of the reaction chamber 12 channel. In this way, after the gas flows from the reaction chamber 12 into the processing chamber 13, it tends to flow in an "S" shape, so as to slow down the flow of gas from the reaction chamber 12 and increase the time the gas stays in the reaction chamber 12, so as to improve the purification effect.

[0053] like Figure 2 As shown, in one embodiment, the microbial filter bed 1 also includes a diverter plate 30, which is arranged in the box body 10, and the diverter plate 30 is located in the channel connecting the reaction chamber 12 and the spray chamber 11. The diverter plate 30 is used to guide the gas in the spray chamber 11 to enter the reaction chamber 12 evenly.

[0054] It should be noted that the shunt plate 30 is arranged in the box body 10, and the shunt plate 30 is located in the passage communicated between the reaction chamber 12 and the spraying chamber 11, and a plurality of perforations are arranged on the shunt plate 30, so that the gas in the spraying chamber 11 can flow into the reaction chamber 12 uniformly, and the filler in the reaction chamber 12 can be uniformly contacted with the gas, so that the microorganism on the filler grows uniformly, and the purification effect is improved.

[0055] As shown in Figures 3 to 5 In an embodiment, the plurality of drum frames 23 on the shaft rods 22 are spaced apart, so that there is a gap between the plurality of drum frames 23 on the two shaft rods 22 located at the two ends of the reaction chamber 12. Further, the microbial filter bed 1 further comprises a plurality of sealing plates 40, one end of each of the sealing plates 40 is arranged on the two opposite inner side walls of the reaction chamber 12, and the other end of each of the sealing plates 40 extends in the gap between the two drum frames 23 and is tangent to the shaft rod 22, so that the gas passes through the filler in each of the drum frames 23, and the reaction between the gas and the microorganism on the filler is improved, and the purification effect is improved.

[0056] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as the limitation of the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A microbial filter bed, characterized in that: include: Box; and The tumbling assembly includes a driving member, a shaft, a roller frame and a water spray pipe, the driving member is arranged on the box body, the shaft is rotatably arranged on the box body, and one end of the shaft is connected to the driving member, the roller frame is coaxially arranged on the shaft, the roller frame is used to accommodate filler, the water spray pipe is arranged on the inner top wall of the box body, and the spray direction of the water spray pipe is toward the roller frame, when the driving member drives the shaft to rotate, the roller frame drives the filler to roll, so that the water spray pipe can flush the filler at multiple angles, the roller frame includes two plywood and multiple round rods, the two plywoods are both mounted on the shaft, the two ends of each round rod are respectively connected to the two plywoods, and the round rods are equidistantly distributed circumferentially relative to the plywood, so that the two plywoods and the round rods together form the roller frame.

2. The microbial filter bed according to claim 1, characterized in that: The tumbling assembly further comprises a gate. A slide groove is provided on the roller frame. The gate is slidably arranged in the slide groove. The gate is used to close the roller frame.

3. The microbial filter bed according to claim 1, characterized in that: A clip strip is provided on the shaft rod, and the clip strip extends from one end of the shaft rod to the other end. Through holes are provided on both of the two splints, and the clip strip passes through the through holes. A slot adapted to the clip strip is provided on the inner side wall of the through hole, and the slot is clipped to the clip strip.

4. The microbial filter bed according to claim 3, characterized in that: There are multiple shafts and roller racks, and the shafts are distributed on the box at intervals. Multiple roller racks are arranged on each shaft, and the roller racks on any two adjacent shafts are staggered with each other.

5. The microbial filter bed according to claim 4, characterized in that: The tumbling assembly further includes an eccentric disk and a conversion member. The eccentric disk is arranged on the driving member. One end of the conversion member is sleeved on the shaft, and the other end of the conversion member is rotatably connected to the eccentric disk.

6. The microbial filter bed according to claim 5, characterized in that: The conversion member includes a connecting rod and a plurality of rotating blocks, one end of each rotating block is respectively sleeved on each of the shafts, the other end of each rotating block is rotatably connected to the connecting rod, and the end of the connecting rod away from the rotating block is rotatably connected to the eccentric disk.

7. The microbial filter bed according to claim 1, characterized in that: The microbial filter bed also includes a plurality of partitions, each of which is arranged in the box body. Each partition divides the box body into a spray chamber, a reaction chamber and a processing chamber. The spray chamber, the reaction chamber and the processing chamber are interconnected. The spray chamber is used to spray the gas entering the box body. The tumbling assembly is located in the reaction chamber. The processing chamber is used to slow down the gas flow in the box body.

8. The microbial filter bed according to claim 7, characterized in that: The microbial filter bed further includes a plurality of flow limiting plates, each of which is located on two opposite inner side walls of the processing chamber, and each of the flow limiting plates is staggered and distributed with respect to each other.

9. The microbial filter bed according to claim 7, characterized in that: The microbial filter bed also includes a diverter plate, which is arranged in the box body and located in a channel connecting the reaction chamber and the spray chamber. The diverter plate is used to guide the gas in the spray chamber to evenly enter the reaction chamber.

10. The microbial filter bed according to claim 9, characterized in that: The diverter plate is provided with a plurality of through-holes, and the through-holes are distributed on the diverter plate at intervals.

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