Tail gas treatment device for biological fermentation tank

Abstract

The invention belongs to the technical field of biological fermentation, and particularly relates to a tail gas treatment device for a biological fermentation tank, which comprises a shell, and the shell is internally provided with a first treatment mechanism, a second treatment mechanism, a third treatment mechanism and a fourth treatment mechanism, the first treatment mechanism, the second treatment mechanism, the third treatment mechanism and the fourth treatment mechanism are connected with one another; according to the scheme, the problems that an existing tail gas treatment device is large in occupied space due to the combined action of multiple purification treatment modes, and the treatment efficiency is too low are solved; according to the solution, through the designed shell, the first treatment mechanism, the second treatment mechanism, the third treatment mechanism and the fourth treatment mechanism are installed in a centralized mode through the shell during use, and therefore occupied space is reduced; and during use, tail gas can be conveniently and rapidly introduced into the first treatment mechanism, the second treatment mechanism, the third treatment mechanism and the fourth treatment mechanism for treatment in sequence, and the treatment efficiency is higher.

Description

Technical Field

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

[0002] The tail gas produced during the biological fermentation process usually contains organic matter (such as alcohols, acids, ketones, etc.), ammonia, sulfides, etc. These waste gases not only have a bad smell, but may also cause harm to human health and the surrounding environment. Through effective tail gas treatment, the emission of these harmful substances can be significantly reduced, protecting the environment and human health. At present, in the actual application of biological fermentation tank tail gas treatment, it is often necessary to adopt a combination of multiple methods for treatment according to the waste gas characteristics, treatment scale and economic conditions. During installation and use, the use of multiple equipment will occupy a large space and the efficiency is too low during treatment. Therefore, it is necessary to design a tail gas treatment device for biological fermentation tanks to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a tail gas treatment device for a biological fermentation tank to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: an exhaust gas treatment device for a biological fermentation tank, comprising a shell, wherein a first treatment mechanism, a second treatment mechanism, a third treatment mechanism and a fourth treatment mechanism are arranged inside the shell, and the first treatment mechanism, the second treatment mechanism, the third treatment mechanism and the fourth treatment mechanism are connected to each other; The first treatment mechanism comprises 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, 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, a spray pipe is arranged at one end of the connecting pipe, the spray pipe is installed at 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 on the inner side of the adsorption partition, and an activated carbon filter box is arranged on one side of the support frame.

[0005] Preferably, 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 on the inner side of the insulating inner shell, and the positioning support filling body is engaged with the outer side of the neutralization treatment barrel, the combustion treatment barrel, the spray treatment barrel and the adsorption treatment barrel.

[0006] Preferably, the upper ends of the neutralization treatment barrel, combustion treatment barrel, spray treatment barrel and adsorption treatment barrel are all installed on the upper end of the outer 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 outer shell.

[0007] Preferably, a rotating motor is provided at the upper end of the neutralization treatment barrel, the rotating central shaft is rotatably mounted in the neutralization treatment barrel via a bearing, and the output shaft of the rotating motor is fixedly mounted to the upper end of the rotating central shaft.

[0008] Preferably, a preheating absorption tube is provided on the outer side of the combustion treatment barrel, the upper end of the preheating absorption tube is connected to the interior of the neutralization treatment barrel, and the lower end of the preheating absorption tube is connected to the interior of the combustion treatment barrel.

[0009] Preferably, a mounting plate is provided at the upper end of the treatment burner, and the mounting plate is fixed to the upper end of the combustion treatment barrel.

[0010] Preferably, a combustion exhaust cylinder is provided on the outer side of the lower end of the treatment burner, an exhaust port is provided on one side of the combustion exhaust cylinder, a combustion air guide hood is provided on the lower end of the combustion exhaust cylinder, 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 provided on the outer side of the combustion air guide hood.

[0011] Preferably, the third treatment mechanism includes a spray treatment barrel, a ventilation baffle is provided 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 to 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 provided on the other side of the spray treatment barrel, one end of the spray air outlet pipe is connected to the adsorption treatment barrel, a filter box is provided at the lower end of the interior of the spray treatment barrel, the extraction pump is installed on the filter box, and one end of the extraction pipe passes through the filter box.

[0012] Preferably, a UV photolysis mounting frame is provided on the inner wall of the spray treatment barrel, 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.

[0013] Preferably, 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 a spray outlet pipe, an air outlet cavity is provided inside the upper end of the adsorption treatment barrel, one end of the air outlet cavity is provided with an opening connected to an activated carbon filter box at a position corresponding to 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.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the designed shell, the first treatment mechanism, the second treatment mechanism, the third treatment mechanism and the fourth treatment mechanism are centrally installed through the shell when in use, thereby reducing space occupancy, and facilitating the exhaust gas to quickly pass into the first treatment mechanism, the second treatment mechanism, the third treatment mechanism and the fourth treatment mechanism in sequence for treatment when in use, which makes the treatment more efficient.

[0015] 2. Through the designed first treatment mechanism and second treatment mechanism, when in use, the rotating motor of the first treatment mechanism drives the rotating central axis and the guide spiral blade to rotate, and the gas is guided by the guide spiral blade and the impurities in the exhaust gas are fully absorbed by the neutralizing liquid, and then passed into the combustion treatment barrel, and the residual exhaust gas is burned through the treatment burner, so that the exhaust gas material is fully treated.

[0016] 3. Through the designed third treatment mechanism and fourth treatment mechanism, when in use, the spray liquid at the bottom is extracted by the extraction pump and sprayed through the spray pipe and the spray head to adsorb the treated exhaust gas again, and then cooperate with the activated carbon filter box of the fourth treatment mechanism to absorb the residual impurities and odors, so as to fully treat the emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the UV photolysis lamp installation structure of the present invention; Figure 4 It is a schematic diagram of the combustion structure of the present invention; Figure 5 It is a schematic diagram of the neutralization combustion structure of the present invention; Figure 6 It is a schematic diagram of the spray structure of the present invention; Figure 7 It is a schematic diagram of the internal structure of the adsorption of the present invention; Figure 8It is a schematic diagram of the adsorption top view structure of the present invention; In the figure: 1. outer shell; 11. outer protective shell; 12. heat-insulating inner shell; 13. positioning support filling body; 2. first treatment mechanism; 21. neutralization treatment barrel; 22. rotating motor; 23. rotating central axis; 24. guide spiral blade; 25. neutralization air intake pipe; 3. second treatment mechanism; 31. combustion treatment barrel; 32. treatment burner; 33. combustion discharge cylinder; 331. exhaust port; 34. combustion air guide cover; 341. sealing ring; 35. gas pipe; 36. combustion air intake pipe; 37. mounting plate; 38. preheating absorption pipe; 4. third treatment mechanism; 41. spray Treatment barrel; 411, spray air inlet pipe; 412, spray air outlet pipe; 413, UV photolysis seat; 414, UV photolysis lamp; 415, UV photolysis mounting bracket; 42, ventilation baffle; 43, through hole; 44, filter box; 45, extraction pipe; 46, extraction pump; 47, connecting pipe; 48, spray pipe; 49, spray head; 5, fourth treatment mechanism; 51, adsorption treatment barrel; 52, adjustment motor; 53, adjustment shaft; 54, adsorption baffle; 55, support frame; 56, activated carbon filter box; 57, air outlet cavity; 58, adsorption air inlet; 59, adsorption air outlet. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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.

[0019] Example 1: Please refer to Figures 1 to 8 The present invention provides a technical solution: an exhaust gas treatment device for a biological fermentation tank, comprising a shell 1, a first treatment mechanism 2, a second treatment mechanism 3, a third treatment mechanism 4 and a fourth treatment mechanism 5 are arranged inside the shell 1, and the first treatment mechanism 2, the second treatment mechanism 3, the third treatment mechanism 4 and the fourth treatment mechanism 5 are connected to each other; The first treatment mechanism 2 includes a neutralization treatment barrel 21, a neutralization air inlet pipe 25 is built into the shell of the neutralization treatment barrel 21, a neutralization chamber is opened inside the neutralization treatment barrel 21, the lower end of the neutralization air inlet pipe 25 is connected to the bottom of the neutralization chamber inside the neutralization treatment barrel 21, a rotating central axis 23 is installed in the neutralization chamber inside the neutralization treatment barrel 21, and a guide spiral sheet 24 is arranged on the outer side of the rotating central axis 23, and air is sucked into the neutralization treatment barrel 21 by a vacuum pump, reacts with the neutralization liquid in the neutralization treatment barrel 21 for neutralization and absorption, and is fully absorbed by guiding through the guide spiral sheet 24; The second treatment mechanism 3 includes a combustion treatment barrel 31, and the combustion treatment barrel 31 is connected to the neutralization treatment barrel 21. A treatment burner 32 is installed at the upper end of the combustion treatment barrel 31. A gas pipe 35 and a combustion air intake pipe 36 are provided at one end of the treatment burner 32. The lower end of the treatment burner 32 is installed in the combustion treatment barrel 31. After the exhaust gas enters, it is burned by the treatment burner 32. The third treatment mechanism 4 includes a spray treatment barrel 41, and the spray treatment barrel 41 and the combustion treatment barrel 31 are connected to each other. An extraction pump 46 is arranged inside the spray treatment barrel 41, and an extraction pipe 45 and a connecting pipe 47 are arranged at the end of the extraction pump 46. The connecting pipe 47 is built and fixed in the spray treatment barrel 41, and a spray pipe 48 is arranged at one end of the connecting pipe 47. The spray pipe 48 is installed on the inner top of the spray treatment barrel 41, and a spray head 49 is arranged on the lower side of the spray pipe 48. 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 sprays it out through the spray head 49 to spray and adsorb the waste gas; The fourth treatment mechanism 5 includes an adsorption treatment barrel 51, and the adsorption treatment barrel 51 is connected to the spray treatment barrel 41. An adsorption partition 54 is arranged inside the adsorption treatment barrel 51, and a support frame 55 is arranged inside the adsorption partition 54. An activated carbon filter box 56 is arranged on one side of the support frame 55. The exhaust gas is adsorbed and treated by the activated carbon filter box 56 inside the adsorption partition 54. For further information, see 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 on the upper end of the outer shell 1, and the lower ends of the neutralization treatment barrel 21 and the spray treatment barrel 41 are 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 spray adsorption liquid in the neutralization treatment barrel 21 and the spray treatment barrel 41 when in use; the outer shell 1 includes an outer protective shell 11, and the interior of the outer protective shell 11 is provided with an insulating inner shell 12, and the inner side of the insulating inner shell 12 is provided with a positioning support filling body 13, and the positioning support filling body 13 is engaged with the outer side 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 when in use, and reduces the influence of external heat on the interior.

[0020] From the above description, it can be seen that the present invention has the following beneficial effects: when in 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 occupancy, and when in use, it is convenient for the exhaust gas to be quickly and sequentially passed into the first treatment mechanism 2, the second treatment mechanism 3, the third treatment mechanism 4 and the fourth treatment mechanism 5 for treatment, and the efficiency is higher during treatment.

[0021] Example 2: Please refer to Figures 1 to 8 As shown, based on the first embodiment, the present invention provides a technical solution: a rotating motor 22 is provided at the upper end of the neutralization treatment barrel 21, and a rotating central shaft 23 is rotatably installed in the neutralization treatment barrel 21 through a bearing, and an output shaft of the rotating motor 22 is fixedly installed on the upper end of the rotating central shaft 23. When in use, the rotating central shaft 23 is driven to rotate by the rotating motor 22 to cooperate with the guide spiral blade 24 for stirring to accelerate the reaction adsorption efficiency.

[0022] For further information, see Figures 1 to 8 A preheating absorption pipe 38 is arranged on the outer side of the combustion treatment barrel 31, and the upper end of the preheating absorption pipe 38 is connected to the interior of the neutralization treatment barrel 21, and the lower end of the preheating absorption pipe 38 is connected to the interior of the combustion treatment barrel 31. When in use, the combustion waste heat of the treatment burner 32 is utilized through the preheating absorption pipe 38, so as to preheat the waste gas and facilitate subsequent heating and combustion; a mounting plate 37 is arranged on the upper end of the treatment burner 32, and the mounting plate 37 is fixed on the upper end of the combustion treatment barrel 31, so as to facilitate the installation of the treatment burner 32 when in use; a combustion discharge cylinder 33 is arranged on the outer side of the lower end of the treatment burner 32, and an exhaust port 331 is arranged on one side of the combustion discharge cylinder 33, and a combustion air guide hood 34 is arranged on the lower end of the combustion discharge cylinder 33, and the outer side of the combustion air guide hood 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 air guide hood 34. When in use, the waste gas is guided by the combustion air guide hood 34, so as to facilitate the combustion of the waste gas inside the combustion discharge cylinder 33.

[0023] The first treatment mechanism 2 and the second treatment mechanism 3 of the above technical solution are used. When in use, the rotating motor 22 of the first treatment mechanism 2 drives the rotating central axis 23 and the guide spiral blade 24 to rotate. The gas is guided by the guide spiral blade 24 and the impurities in the exhaust gas are fully absorbed by the neutralizing liquid. The exhaust gas is then passed into the combustion treatment barrel 31, and the residual exhaust gas is burned by the treatment burner 32, so that the exhaust gas material is fully treated.

[0024] For further information, see Figures 1 to 8The third treatment mechanism 4 includes a spray treatment barrel 41, a ventilation baffle 42 is provided inside the spray treatment barrel 41, a through hole 43 is provided at the lower end of the ventilation baffle 42, a spray pipe 48 is located on one side of the ventilation baffle 42, the upper end of the spray treatment barrel 41 is connected to the inside of the combustion treatment barrel 31 through a spray air inlet pipe 411, and the position of the spray air inlet pipe 411 corresponds to the position of the exhaust port 331, a spray air outlet pipe 412 is provided on the other side of the spray treatment barrel 41, one end of the spray air outlet pipe 412 is connected to the adsorption treatment barrel 51, a filter box 44 is provided at the lower end of the spray treatment barrel 41, and an extraction pump 46 is installed on the filter box 44, and one end of the extraction pipe 45 passes through the filter box 44. The particulate impurities generated after the exhaust gas combustion treatment follow the remaining exhaust gas into the spray treatment barrel 41, and the spray liquid adsorbs the particulate impurities and then flows down. Then, the particulate impurities adsorbed by the spray liquid are filtered out by the filter mesh structure of the filter box 44 and are recycled; the inner wall of the spray treatment barrel 41 is provided with a UV photolysis mounting frame 415, and a UV photolysis seat 413 is installed inside the UV photolysis mounting frame 415. A UV photolysis lamp 414 is provided on one side of the UV photolysis seat 413. When in use, the exhaust gas is photolyzed by the UV photolysis lamp 414.

[0025] For further information, see Figures 1 to 8 , an adjusting shaft 53 is provided in the middle of the adsorption partition 54, an adjusting motor 52 is fixedly installed on the upper end of the adsorption treatment barrel 51, and the output shaft of the adjusting motor 52 is fixedly connected to the upper end of the adjusting shaft 53, and an adsorption air inlet 58 is provided at the lower end of the adsorption treatment barrel 51, and the adsorption air inlet 58 is connected to one end of the spray outlet pipe 412, and an air outlet cavity 57 is provided inside the upper end of the adsorption treatment barrel 51, and an opening connected to the activated carbon filter box 56 is provided at one end of the air outlet cavity 57 corresponding to the position of the adsorption air inlet 58, and an adsorption air outlet 59 is provided on one side of the air outlet cavity 57, and one end of the adsorption air outlet 59 passes through the outer shell 1. When in use, the exhaust 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 air outlet 59. After long-term use, the adjusting motor 52 is used to drive the adjusting shaft 53 to rotate, thereby adjusting the position of the adsorption partition 54 and adjusting the position of the inner activated carbon filter box 56.

[0026] The third treatment mechanism 4 and the fourth treatment mechanism 5 using the above technical solution, when in use, extract the spray liquid at the bottom through the extraction pump 46, and spray it through the spray pipe 48 and the spray head 49 to adsorb the treated exhaust gas again, and then cooperate with the activated carbon filter box 56 of the fourth treatment mechanism 5 to absorb the residual impurities and odors, so as to fully treat the emissions.

[0027] The working principle and use process of the present invention are as follows: when in use, one end of the neutralization air inlet pipe 25 is connected to the biological fermentation tank, and air is sucked into the neutralization treatment barrel 21 through the vacuum pump, reacts with the neutralizing liquid in the neutralization treatment barrel 21 for neutralization and absorption, and is fully absorbed through the guide spiral blade 24. At the same time, the rotating motor 22 drives the rotating central shaft 23 to rotate and cooperates with the guide spiral blade 24 to stir to accelerate the reaction adsorption efficiency. Then the adsorbed waste gas enters the preheating absorption pipe 38, and the waste gas is preheated by absorbing the residual heat of the combustion of the treatment burner 32 through the preheating absorption pipe 38. Then, the waste gas enters from the bottom of the combustion treatment barrel 31, and is guided into the combustion discharge tube 33 through the combustion air guide cover 34. The remaining waste gas is burned by the treatment burner 32, so as to further treat the remaining waste gas. The particulate impurities generated after the exhaust gas combustion treatment follow the remaining exhaust gas through the spray air inlet pipe 411 into the spray treatment barrel 41, and the extraction pump 46 extracts the spray treatment barrel 4 The spray adsorption liquid at the bottom of the inner chamber 1 enters the spray pipe 48 through the connecting pipe 47, and then is sprayed out through the spray head 49 to spray and adsorb the waste gas. 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 screen structure of the filter box 44 and then extracted and recycled by the extraction pump 46. At the same time, the UV photolysis lamp 414 continuously irradiates and photolyzes the waste gas, and then enters the adsorption treatment barrel 51 through the spray outlet pipe 412 and the adsorption air inlet 58, and the waste gas is adsorbed and processed by the activated carbon filter box 56 on the inner side of the adsorption partition 54, and then discharged through the air outlet cavity 57 and the adsorption air outlet 59. After long-term use, the adjustment motor 52 drives the adjustment shaft 53 to rotate, thereby adjusting the position of the adsorption partition 54, and adjusting the position of the inner activated carbon filter box 56, so that the old activated carbon filter box 56 is removed and the new activated carbon filter box 56 is moved to the position of the adsorption air inlet 58.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] The above description is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in 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.

2. A tail gas treatment device for a biological fermentation tank according to claim 1, characterized in that: 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 side of the neutralization treatment barrel, the combustion treatment barrel, the spray treatment barrel and the adsorption treatment barrel.

3. A tail gas treatment device for a biological fermentation tank according to claim 1, characterized in that: 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.

4. A 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.

5. A tail gas treatment device for a biological fermentation tank according to claim 1, characterized in that: A preheating absorption pipe is arranged outside 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.

6. A 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.

7. A 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.

8. A tail gas treatment device for a biological fermentation tank according to claim 7, characterized in that: 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.

9. A tail gas treatment device for a biological fermentation tank according to claim 8, characterized in that: 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.

10. A tail gas treatment device for a biological fermentation tank according to claim 8, 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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