An exhaust gas treatment device for a bioreactor

Abstract

The present invention belongs to the field of biological fermentation technology, and particularly relates to an exhaust gas treatment device for a biological fermentation tank, including a housing. A first treatment mechanism, a second treatment mechanism, a third treatment mechanism, and a fourth treatment mechanism are arranged inside the housing, and the first treatment mechanism, the second treatment mechanism, the third treatment mechanism, and the fourth treatment mechanism are connected to each other. The problem to be solved in this solution is that the current exhaust gas treatment device uses multiple purification methods together, resulting in a large occupied space and low efficiency during treatment. The solution of the present invention is to centrally install the first treatment mechanism, the second treatment mechanism, the third treatment mechanism, and the fourth treatment mechanism through the designed housing during use, thereby reducing space occupation, and facilitating the exhaust gas to quickly enter the first treatment mechanism, the second treatment mechanism, the third treatment mechanism, and the fourth treatment mechanism in sequence for treatment during use, with faster treatment efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of biological fermentation, and particularly relates to an exhaust gas treatment device for a biological fermentation tank. Background Technique

[0002] The exhaust gas generated during the biological fermentation process usually contains organic substances (such as alcohols, acids, ketones, etc.), ammonia, sulfides, etc. These waste gases not only have an unpleasant smell but may also pose hazards to human health and the surrounding environment; through effective exhaust gas treatment, the emissions of these harmful substances can be significantly reduced, protecting the environment and human health.

[0003] Currently, in the practical application of exhaust gas treatment for biological fermentation tanks, it is often necessary to comprehensively adopt various methods for treatment according to the characteristics of the waste gas, the treatment scale, and economic conditions. When installing and using, due to the use of multiple devices, there will be a phenomenon of a large occupied space, and the treatment efficiency is too low during treatment. Therefore, it is necessary to design an exhaust gas treatment device for a biological fermentation tank to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an exhaust gas treatment device for a biological fermentation tank to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An exhaust gas treatment device for a biological fermentation tank, including a housing. Inside the housing, a first treatment mechanism, a second treatment mechanism, a third treatment mechanism, and a fourth treatment mechanism are provided, and the first treatment mechanism, the second treatment mechanism, the third treatment mechanism, and the fourth treatment mechanism are connected to each other.

[0006] The first treatment mechanism includes a neutralization treatment barrel. Inside the shell of the neutralization treatment barrel, a neutralization inlet pipe is provided. Inside the neutralization treatment barrel, a neutralization chamber is formed. The lower end of the neutralization inlet pipe communicates with the bottom of the inner neutralization chamber of the neutralization treatment barrel. Inside the neutralization chamber of the neutralization treatment barrel, a rotating central axis is installed, and guiding spiral vanes are arranged on the outer side of the rotating central axis.

[0007] The second treatment mechanism includes a combustion treatment barrel, and the combustion treatment barrel is connected to the neutralization treatment barrel. At the upper end of the combustion treatment barrel, a treatment burner is installed. One end of the treatment burner is provided with a gas pipe and a combustion inlet pipe, and the lower end of the treatment burner is installed inside the combustion treatment barrel.

[0008] The third processing mechanism includes a spray treatment barrel, and the spray treatment barrel is connected to the combustion treatment barrel. An extraction pump is arranged inside the spray treatment barrel. An extraction pipe and a connection pipe are arranged at the end of the extraction pump. The connection pipe is fixedly arranged inside the spray treatment barrel. One end of the connection pipe is provided with a spray pipe. The spray pipe is installed at the inner top of the spray treatment barrel, and spray heads are arranged on the lower side of the spray pipe;

[0009] The fourth processing mechanism includes an adsorption treatment barrel, and the adsorption treatment barrel is connected to the spray treatment barrel. An adsorption partition is arranged inside the adsorption treatment barrel. A support frame is arranged inside the adsorption partition. An activated carbon filter box is arranged on one side of the support frame.

[0010] Preferably, the outer shell includes an outer protective shell. A heat-insulating inner shell is arranged inside the outer protective shell. A positioning support filler is arranged inside the heat-insulating inner shell. The positioning support filler is clamped on the outer sides of the neutralization treatment barrel, the combustion treatment barrel, the spray treatment barrel and the adsorption treatment barrel.

[0011] Preferably, the upper ends of the neutralization treatment barrel, the combustion treatment barrel, the spray treatment barrel and the adsorption treatment barrel are all installed at the upper end of the outer shell. Connecting pipes are arranged at the lower ends of the neutralization treatment barrel and the spray treatment barrel, and the connecting pipes all pass through the outer shell.

[0012] Preferably, a rotating motor is arranged at the upper end of the neutralization treatment barrel. A rotating central shaft is rotatably installed inside the neutralization treatment barrel through a bearing. The output shaft of the rotating motor is fixedly installed at the upper end of the rotating central shaft.

[0013] Preferably, a preheating absorption pipe is arranged on the outer side of the combustion treatment barrel. The upper end of the preheating absorption pipe is connected to the inside of the neutralization treatment barrel, and the lower end of the preheating absorption pipe is communicated with the inside of the combustion treatment barrel.

[0014] Preferably, a mounting plate is arranged at the upper end of the treatment burner. The mounting plate is fixed at the upper end of the combustion treatment barrel.

[0015] Preferably, a combustion emission cylinder is arranged on the outer side of the lower end of the treatment burner. An exhaust port is arranged on one side of the combustion emission cylinder. A combustion gas guide cover is arranged at the lower end of the combustion emission cylinder. The outer side of the combustion gas guide cover is attached to the inner wall of the combustion treatment barrel, and a sealing ring is arranged on the outer side of the combustion gas guide cover.

[0016] Preferably, the third processing mechanism includes a spray processing barrel, an air vent partition is arranged inside the spray processing barrel, through holes are formed at the lower end of the air vent partition, the spray pipe is located on one side of the air vent partition, the upper end of the spray processing barrel is connected to the inside of the combustion processing barrel through a spray inlet pipe, and the position of the spray inlet pipe corresponds to the position of the exhaust port. A spray outlet pipe is arranged on the other side of the spray processing barrel, one end of the spray outlet pipe is communicated with the adsorption processing barrel, a filter box is arranged at the lower end inside the spray processing barrel, an extraction pump is installed on the filter box, and one end of the extraction pipe penetrates through the filter box.

[0017] Preferably, a UV photocatalytic mounting bracket is arranged on the inner wall of the spray processing barrel, a UV photocatalytic seat is installed inside the UV photocatalytic mounting bracket, and a UV photocatalytic lamp is arranged on one side of the UV photocatalytic seat.

[0018] Preferably, an adjustment shaft is arranged in the middle of the adsorption partition, an adjustment motor is fixedly installed at the upper end of the adsorption processing barrel, the output shaft of the adjustment motor is fixedly connected to the upper end of the adjustment shaft, an adsorption air inlet is arranged at the lower end of the adsorption processing barrel, the adsorption air inlet is connected to one end of the spray outlet pipe, an air outlet cavity is arranged inside the upper end of the adsorption processing barrel, an opening communicated with the activated carbon filter box is arranged at one end of the air outlet cavity corresponding to the position of the adsorption air inlet, an adsorption air outlet is arranged on one side of the air outlet cavity, and one end of the adsorption air outlet penetrates through the outer shell.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. Through the designed outer shell, when in use, the first processing mechanism, the second processing mechanism, the third processing mechanism and the fourth processing mechanism are centrally installed through the outer shell, thereby reducing space occupation, and when in use, it is convenient for the tail gas to be quickly introduced into the first processing mechanism, the second processing mechanism, the third processing mechanism and the fourth processing mechanism in sequence for processing, and the processing efficiency is faster.

[0021] 2. Through the designed first processing mechanism and the second processing mechanism, when in use, the rotation motor of the first processing mechanism drives the rotation central shaft and the guiding spiral blades to rotate. While guiding the gas through the guiding spiral blades, the impurities in the waste gas are fully absorbed by the neutralizing liquid, and then introduced into the combustion processing barrel. The residual waste gas is burned by the processing burner, so as to fully process the waste gas materials.

[0022] 3. Through the designed third processing mechanism and the fourth processing mechanism, when in use, the extraction pump extracts the spray liquid at the bottom and sprays it through the spray pipe and the spray head for secondary adsorption treatment of the processed tail gas, and then cooperates with the activated carbon filter box of the fourth processing mechanism to absorb the residual impurities and odors, so as to fully process the emission. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of the present invention;

[0024] Figure 2 is a schematic internal structure diagram of the present invention;

[0025] Figure 3 is a schematic installation structure diagram of the UV photolysis lamp of the present invention;

[0026] Figure 4 is a schematic combustion structure diagram of the present invention;

[0027] Figure 5 is a schematic neutralization combustion structure diagram of the present invention;

[0028] Figure 6 is a schematic spraying structure diagram of the present invention;

[0029] Figure 7 is a schematic internal adsorption structure diagram of the present invention;

[0030] Figure 8 is a schematic top-down adsorption structure diagram of the present invention;

[0031] In the figure: 1. Outer shell; 11. Outer protective shell; 12. Heat-insulating inner shell; 13. Positioning support filler; 2. First treatment mechanism; 21. Neutralization treatment barrel; 22. Rotating motor; 23. Rotating central axis; 24. Guide spiral plate; 25. Neutralization intake pipe; 3. Second treatment mechanism; 31. Combustion treatment barrel; 32. Treatment burner; 33. Combustion exhaust cylinder; 331. Exhaust port; 34. Combustion air guide cover; 341. Sealing ring; 35. Gas pipe; 36. Combustion intake pipe; 37. Installation plate; 38. Preheating absorption pipe; 4. Third treatment mechanism; 41. Spraying treatment barrel; 411. Spraying intake pipe; 412. Spraying outlet pipe; 413. UV photolysis seat; 414. UV photolysis lamp; 415. UV photolysis mounting bracket; 42. Ventilation partition; 43. Through hole; 44. Filter box; 45. Extraction pipe; 46. Extraction pump; 47. Connecting pipe; 48. Spraying pipe; 49. Spraying head; 5. Fourth treatment mechanism; 51. Adsorption treatment barrel; 52. Adjusting motor; 53. Adjusting shaft; 54. Adsorption partition; 55. Support frame; 56. Activated carbon filter box; 57. Air outlet cavity; 58. Adsorption intake port; 59. Adsorption outlet port. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Example 1: Please refer to Figures 1 to 8 , the present invention provides a technical solution: An exhaust gas treatment device for a bioreactor, including a housing 1. Inside the housing 1, a first treatment mechanism 2, a second treatment mechanism 3, a third treatment mechanism 4, and a fourth treatment mechanism 5 are provided, and the first treatment mechanism 2, the second treatment mechanism 3, the third treatment mechanism 4, and the fourth treatment mechanism 5 are interconnected;

[0034] The first treatment mechanism 2 includes a neutralization treatment barrel 21. Inside the housing of the neutralization treatment barrel 21, a neutralization inlet pipe 25 is provided. Inside the neutralization treatment barrel 21, a neutralization chamber is formed. The lower end of the neutralization inlet pipe 25 communicates with the bottom of the inner neutralization chamber of the neutralization treatment barrel 21. Inside the neutralization chamber of the neutralization treatment barrel 21, a rotating central axis 23 is installed. Outside the rotating central axis 23, a guiding spiral blade 24 is provided. By pumping air through an air extractor into the neutralization treatment barrel 21, it reacts and neutralizes with the neutralization liquid inside the neutralization treatment barrel 21, and is fully absorbed through the guiding of the guiding spiral blade 24;

[0035] The second treatment mechanism 3 includes a combustion treatment barrel 31, and the combustion treatment barrel 31 is interconnected with the neutralization treatment barrel 21. At the upper end of the combustion treatment barrel 31, a treatment burner 32 is installed. At one end of the treatment burner 32, a gas pipe 35 and a combustion inlet pipe 36 are provided. The lower end of the treatment burner 32 is installed inside the combustion treatment barrel 31. After the waste gas enters, it burns by the treatment burner 32 spraying fire;

[0036] The third treatment mechanism 4 includes a spray treatment barrel 41, and the spray treatment barrel 41 is interconnected with the combustion treatment barrel 31. Inside the spray treatment barrel 41, a extraction pump 46 is provided. At the end of the extraction pump 46, an extraction pipe 45 and a connecting pipe 47 are provided. The connecting pipe 47 is fixedly installed inside the spray treatment barrel 41. At one end of the connecting pipe 47, a spraying pipe 48 is provided. The spraying pipe 48 is installed at the inner top of the spray treatment barrel 41. And below the spraying pipe 48, a spraying head 49 is provided. The extraction pump 46 extracts the spray adsorption liquid at the bottom inside the spray treatment barrel 41, enters the spraying pipe 48 through the connecting pipe 47, and then sprays out through the spraying head 49 to spray and adsorb the waste gas;

[0037] The fourth treatment mechanism 5 includes an adsorption treatment barrel 51, and the adsorption treatment barrel 51 is interconnected with the spray treatment barrel 41. Inside the adsorption treatment barrel 51, an adsorption partition 54 is provided. Inside the adsorption partition 54, a support frame 55 is provided. On one side of the support frame 55, an activated carbon filter box 56 is provided. The waste gas is adsorbed by the activated carbon filter box 56 inside the adsorption partition 54;

[0038] Further, it can be referred to Figures 1 to 8, the upper ends of the neutralization treatment barrel 21, the combustion treatment barrel 31, the spray treatment barrel 41 and the adsorption treatment barrel 51 are all installed at the upper end of the outer shell 1. The lower ends of the neutralization treatment barrel 21 and the spray treatment barrel 41 are both provided with connecting pipes, and the connecting pipes all pass through the outer shell 1, which is convenient for discharging and replacing the neutralization liquid and the spray adsorption liquid in the neutralization treatment barrel 21 and the spray treatment barrel 41 during use; the outer shell 1 includes an outer protective shell 11, an insulating inner shell 12 is arranged inside the outer protective shell 11, and a positioning support filler 13 is arranged inside the insulating inner shell 12. The positioning support filler 13 is clamped on the outer sides of the neutralization treatment barrel 21, the combustion treatment barrel 31, the spray treatment barrel 41 and the adsorption treatment barrel 51, which is convenient for positioning the neutralization treatment barrel 21, the combustion treatment barrel 31, the spray treatment barrel 41 and the adsorption treatment barrel 51 during use, and reduces the influence of external heat on the inside.

[0039] As can be seen from the above description, the present invention has the following beneficial effects: during use, the first treatment mechanism 2, the second treatment mechanism 3, the third treatment mechanism 4 and the fourth treatment mechanism 5 are centrally installed through the outer shell 1, thereby reducing space occupation, and it is convenient for the tail gas to be quickly introduced into the first treatment mechanism 2, the second treatment mechanism 3, the third treatment mechanism 4 and the fourth treatment mechanism 5 in sequence for treatment during use, and the treatment efficiency is faster.

[0040] Embodiment 2: Please refer to Figures 1 to 8 As shown, on the basis of Embodiment 1, the present invention provides a technical solution: a rotary motor 22 is arranged at the upper end of the neutralization treatment barrel 21, a rotary central shaft 23 is rotatably installed in the neutralization treatment barrel 21 through a bearing, and the output shaft of the rotary motor 22 is fixedly installed with the upper end of the rotary central shaft 23. During use, the rotary motor 22 drives the rotary central shaft 23 to rotate and cooperate with the guiding spiral fins 24 to stir, so as to accelerate the reaction adsorption efficiency.

[0041] Furthermore, it can be referred to Figures 1 to 8 , a preheating absorption pipe 38 is arranged outside the combustion treatment barrel 31. The upper end of the preheating absorption pipe 38 is connected to the inside of the neutralization treatment barrel 21, and the lower end of the preheating absorption pipe 38 is communicated with the inside of the combustion treatment barrel 31. During use, the combustion waste heat of the treatment burner 32 is utilized through the preheating absorption pipe 38 to preheat the waste gas for subsequent heating and combustion; an installation plate 37 is arranged at the upper end of the treatment burner 32, and the installation plate 37 is fixed at the upper end of the combustion treatment barrel 31, which is convenient for installing the treatment burner 32 during use; a combustion discharge cylinder 33 is arranged outside the lower end of the treatment burner 32, an exhaust port 331 is arranged on one side of the combustion discharge cylinder 33, a combustion gas guide cover 34 is arranged at the lower end of the combustion discharge cylinder 33, the outer side of the combustion gas guide cover 34 is attached to the inner wall of the combustion treatment barrel 31 and a sealing ring 341 is arranged on the outer side of the combustion gas guide cover 34. During use, the waste gas is guided through the combustion gas guide cover 34, so as to facilitate the combustion of the waste gas inside the combustion discharge cylinder 33.

[0042] For the first processing mechanism 2 and the second processing mechanism 3 adopting the above technical solutions, during use, the rotation motor 22 of the first processing mechanism 2 drives the rotation of the rotation central shaft 23 and the guiding spiral fins 24. While guiding the gas through the guiding spiral fins 24, impurities in the waste gas are fully absorbed in cooperation with the neutralizing liquid, and then introduced into the combustion treatment barrel 31. The residual waste gas is subjected to combustion treatment by the treatment burner 32, so as to fully treat the waste gas materials.

[0043] Further, reference can be made to Figures 1 to 8 , the third processing mechanism 4 includes a spraying treatment barrel 41. An air-permeable partition 42 is arranged inside the spraying treatment barrel 41. A through hole 43 is opened at the lower end of the air-permeable partition 42. A spraying pipe 48 is located on one side of the air-permeable partition 42. The upper end of the spraying treatment barrel 41 is connected to the inside of the combustion treatment barrel 31 through a spraying inlet pipe 411, and the position of the spraying inlet pipe 411 corresponds to the position of the exhaust port 331. A spraying outlet pipe 412 is arranged on the other side of the spraying treatment barrel 41. One end of the spraying outlet pipe 412 is communicated with the adsorption treatment barrel 51. A filter box 44 is arranged at the lower end inside the spraying treatment barrel 41. An extraction pump 46 is installed on the filter box 44, and one end of an extraction pipe 45 passes through the filter box 44. The particulate impurities generated after the tail gas combustion treatment follow the remaining tail gas into the spraying treatment barrel 41. After the spraying liquid adsorbs the particulate impurities and flows down, the particulate impurities adsorbed by the spraying liquid are filtered by the filter screen structure of the filter box 44 and then recycled; a UV photolysis mounting frame 415 is arranged on the inner wall of the spraying treatment barrel 41. A UV photolysis seat 413 is installed inside the UV photolysis mounting frame 415. A UV photolysis lamp 414 is arranged on one side of the UV photolysis seat 413. During use, the waste gas is subjected to photolysis treatment by the UV photolysis lamp 414.

[0044] Further, reference can be made to Figures 1 to 8 , a regulating shaft 53 is arranged in the middle of the adsorption partition 54. An adjusting motor 52 is fixedly installed at the upper end of the adsorption treatment barrel 51. The output shaft of the adjusting motor 52 is fixedly connected to the upper end of the regulating shaft 53. An adsorption air inlet 58 is arranged at the lower end of the adsorption treatment barrel 51. The adsorption air inlet 58 is connected to one end of the spraying outlet pipe 412. An air outlet cavity 57 is arranged inside the upper end of the adsorption treatment barrel 51. An opening communicating with the activated carbon filter box 56 is arranged at one end of the air outlet cavity 57 corresponding to the position of the adsorption air inlet 58. An adsorption air outlet 59 is arranged on one side of the air outlet cavity 57. One end of the adsorption air outlet 59 passes through the housing 1. During use, the waste gas is adsorbed by the activated carbon filter box 56 inside the adsorption partition 54 and then discharged through the air outlet cavity 57 and the adsorption air outlet 59. After long-term use, the adjusting motor 52 drives the regulating shaft 53 to rotate, so as to adjust the position of the adsorption partition 54 and adjust the position of the inner activated carbon filter box 56.

[0045] For the third processing mechanism 4 and the fourth processing mechanism 5 adopting the above technical solutions, during use, the extraction pump 46 extracts the spray liquid at the bottom and sprays it through the spray pipe 48 and the spray head 49 to adsorb and process the treated tail gas again, and then cooperates with the activated carbon filter box 56 of the fourth processing mechanism 5 to absorb the residual impurities and odors, so as to fully treat the emissions.

[0046] The working principle and usage process of the present invention: During use, one end of the neutralization intake pipe 25 is connected to the biogas fermentation tank, and air is pumped in through the air extractor and introduced into the interior of the neutralization treatment barrel 21, where it reacts with the neutralization liquid in the neutralization treatment barrel 21 for neutralization and absorption. The guide spiral plate 24 guides for full absorption. At the same time, the rotation motor 22 drives the rotation of the rotation shaft 23 to cooperate with the guide spiral plate 24 to stir and accelerate the reaction and adsorption efficiency. Then, the adsorbed waste gas enters the preheating absorption pipe 38, and the waste gas is preheated by absorbing the waste heat generated by the combustion of the burner 32 in the preheating absorption pipe 38. Then, it enters from the bottom of the combustion treatment barrel 31, is guided through the combustion air guide cover 34 and enters the combustion discharge cylinder 33, and the remaining waste gas is further treated by the spraying of the burner 32. The particulate impurities generated after the tail gas combustion treatment follow the remaining tail gas and enter the spray treatment barrel 41 through the spray intake pipe 411. The extraction pump 46 extracts the spray adsorption liquid at the bottom of the spray treatment barrel 41, enters the spray pipe 48 through the connecting pipe 47, and then is sprayed through the spray head 49 to adsorb the waste gas by spraying. After the spray liquid adsorbs the particulate impurities, it flows down to the bottom, and then the particulate impurities adsorbed by the spray liquid are filtered out through the filter mesh structure of the filter box 44 and extracted by the extraction pump 46 for recycling. At the same time, the UV photocatalytic lamp 414 continuously irradiates and photocatalyzes the waste gas. Then, it enters the adsorption treatment barrel 51 through the spray outlet pipe 412 and the adsorption intake port 58, and the waste gas is adsorbed and treated by the activated carbon filter box 56 inside the adsorption partition 54, and then discharged through the air outlet cavity 57 and the adsorption outlet 59. After long-term use, the adjustment motor 52 drives the rotation of the adjustment shaft 53 to adjust the position of the adsorption partition 54 and adjust the position of the inner activated carbon filter box 56, so as to move the old activated carbon filter box 56 away and move the new activated carbon filter box 56 to the position of the adsorption intake port 58.

[0047] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0048] As described above, it is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention shall be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A tail gas treatment device for a biological fermentation tank, characterized in that: The invention comprises a shell, wherein a first processing mechanism, a second processing mechanism, a third processing mechanism and a fourth processing mechanism are arranged inside the shell, and the first processing mechanism, the second processing mechanism, the third processing mechanism and the fourth processing mechanism are connected to each other; The first treatment mechanism includes a neutralization treatment barrel, a neutralization air inlet pipe is built into the shell of the neutralization treatment barrel, a neutralization chamber is opened inside the neutralization treatment barrel, the lower end of the neutralization air inlet pipe is connected to the bottom of the neutralization chamber inside the neutralization treatment barrel, a rotating central shaft is installed in the neutralization chamber inside the neutralization treatment barrel, and a guide spiral sheet is arranged on the outer side of the rotating central shaft; The second treatment mechanism includes a combustion treatment barrel, and the combustion treatment barrel is connected to the neutralization treatment barrel, a treatment burner is installed at the upper end of the combustion treatment barrel, a gas pipe and a combustion air inlet pipe are arranged at one end of the treatment burner, and the lower end of the treatment burner is installed in the combustion treatment barrel; The third treatment mechanism includes a spray treatment barrel, and the spray treatment barrel and the combustion treatment barrel are connected to each other. An extraction pump is arranged inside the spray treatment barrel, and an extraction pipe and a connecting pipe are arranged at the end of the extraction pump. The connecting pipe is built and fixed in the spray treatment barrel, and a spray pipe is arranged at one end of the connecting pipe. The spray pipe is installed on the inner top of the spray treatment barrel, and a spray head is arranged at the lower side of the spray pipe; The fourth treatment mechanism includes an adsorption treatment barrel, and the adsorption treatment barrel is connected to the spray treatment barrel, an adsorption partition is arranged inside the adsorption treatment barrel, a support frame is arranged inside the adsorption partition, and an activated carbon filter box is arranged on one side of the support frame; The outer shell includes an outer protective shell, an insulating inner shell is arranged inside the outer protective shell, a positioning support filling body is arranged inside the insulating inner shell, and the positioning support filling body is engaged with the outer sides of the neutralization treatment barrel, the combustion treatment barrel, the spray treatment barrel and the adsorption treatment barrel; The upper ends of the neutralization treatment barrel, the combustion treatment barrel, the spray treatment barrel and the adsorption treatment barrel are all installed on the upper end of the shell, and the lower ends of the neutralization treatment barrel and the spray treatment barrel are provided with connecting pipes, and the connecting pipes all pass through the shell; A preheating absorption pipe is arranged outside the combustion treatment barrel, the upper end of the preheating absorption pipe is connected to the interior of the neutralization treatment barrel, and the lower end of the preheating absorption pipe is connected to the interior of the combustion treatment barrel; The inner wall of the spray treatment barrel is provided with a UV photolysis mounting frame, a UV photolysis seat is installed inside the UV photolysis mounting frame, and a UV photolysis lamp is provided on one side of the UV photolysis seat; The third treatment mechanism includes a spray treatment barrel, a ventilation baffle is arranged inside the spray treatment barrel, a through hole is opened at the lower end of the ventilation baffle, the spray pipe is located on one side of the ventilation baffle, the upper end of the spray treatment barrel is connected with the interior of the combustion treatment barrel through a spray air inlet pipe, and the position of the spray air inlet pipe corresponds to the position of the exhaust port, a spray air outlet pipe is arranged on the other side of the spray treatment barrel, one end of the spray air outlet pipe is connected with the adsorption treatment barrel, a filter box is arranged at the lower end of the interior of the spray treatment barrel, an extraction pump is installed on the filter box, and one end of the extraction pipe passes through the filter box.

2. The tail gas treatment device for a biological fermentation tank according to claim 1, characterized in that: A rotating motor is arranged at the upper end of the neutralization treatment barrel, the rotating central shaft is rotatably installed in the neutralization treatment barrel through a bearing, and the output shaft of the rotating motor is fixedly installed on the upper end of the rotating central shaft.

3. The tail gas treatment device for a biological fermentation tank according to claim 1, characterized in that: The upper end of the treatment burner is provided with a mounting plate, and the mounting plate is fixed to the upper end of the combustion treatment barrel.

4. The tail gas treatment device for a biological fermentation tank according to claim 1, characterized in that: A combustion exhaust tube is arranged on the outer side of the lower end of the treatment burner, an exhaust port is arranged on one side of the combustion exhaust tube, a combustion air guide hood is arranged on the lower end of the combustion exhaust tube, the outer side of the combustion air guide hood is attached to the inner wall of the combustion treatment barrel and a sealing ring is arranged on the outer side of the combustion air guide hood.

5. The tail gas treatment device for a biological fermentation tank according to claim 1, characterized in that: An adjusting shaft is provided in the middle of the adsorption partition, an adjusting motor is fixedly installed on the upper end of the adsorption treatment barrel, the output shaft of the adjusting motor is fixedly connected to the upper end of the adjusting shaft, an adsorption air inlet is provided at the lower end of the adsorption treatment barrel, the adsorption air inlet is connected to one end of the spray outlet pipe, an air outlet cavity is provided inside the upper end of the adsorption treatment barrel, an opening connected to the activated carbon filter box is provided at one end of the air outlet cavity corresponding to the position of the adsorption air inlet, an adsorption air outlet is provided on one side of the air outlet cavity, and one end of the adsorption air outlet passes through the outer shell.

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