Device for removing hydrogen sulfide impurities in tail gas

Abstract

The invention discloses a device for removing hydrogen sulfide impurities in tail gas. The device for removing the hydrogen sulfide impurities in the tail gas aims to solve the technical problems that in the prior art, a device for removing the hydrogen sulfide impurities in the tail gas is usually difficult to make amine liquid fully contact with the tail gas, the gas flow direction is difficult to change to achieve multiple contact reactions of the amine liquid and the tail gas, and the removal effect is difficult to improve. The tail gas removal device comprises a supporting box and a cover body fixedly mounted at the upper end of the supporting box, a purification box is fixedly installed at the upper end of the cover body, a first fixing cylinder is fixedly installed at the right end of the purification box, a first air outlet pipe is fixedly installed at the right end of the first fixing cylinder, a backflow pipe is fixedly installed at the right end of the first air outlet pipe, and one end of the backflow pipe penetrates through the cover body and extends into the cover body. According to the tail gas removal device, amine liquid can be in full contact with tail gas, the gas flow direction can be changed to realize multiple contact reactions of the amine liquid and the tail gas, and the removal effect can be improved.

Description

Technical Field

[0001] The invention belongs to the field of tail gas removal, and in particular relates to a device for removing hydrogen sulfide impurities in tail gas. Background Art

[0002] At present, the process flow of hydrogen sulfide treatment in tail gas from hydrodesulfurization devices is complicated, and plate tower equipment is mostly used to remove hydrogen sulfide in tail gas. However, the current devices for removing hydrogen sulfide impurities in tail gas usually make it difficult to fully contact the amine liquid with the tail gas, and it is difficult to change the gas flow direction to achieve multiple contact reactions between the amine liquid and the tail gas, and it is difficult to improve the removal effect, which needs further improvement.

[0003] At present, the invention patent with patent number CN201510216430.1 discloses a photochemical atomized bed hydrogen sulfide removal system, which includes a dust collector, a cooler, a photochemical atomized bed reactor, a gas distribution nozzle, a circulation pump, a particulate matter filter, a feeding tower, a spray pipe, a main flue, a demister and a product post-treatment system. The treatment system is suitable for the process of removing hydrogen sulfide from medium and low concentration exhaust gas, but the current device for removing hydrogen sulfide impurities in exhaust gas usually makes it difficult to fully contact the amine liquid with the exhaust gas, it is difficult to change the gas flow direction to achieve multiple contact reactions between the amine liquid and the exhaust gas, and it is difficult to improve the removal effect.

[0004] Therefore, the above-mentioned problems that the current devices for removing hydrogen sulfide impurities from exhaust gas usually find it difficult to fully contact the amine liquid with the exhaust gas, it is difficult to change the gas flow direction to achieve multiple contact reactions between the amine liquid and the exhaust gas, and it is difficult to improve the removal effect need to be solved urgently to achieve a tail gas removal device that can fully contact the amine liquid with the exhaust gas, can change the gas flow direction to achieve multiple contact reactions between the amine liquid and the exhaust gas, and can improve the removal effect. Summary of the invention

[0005] (1) Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a device for removing hydrogen sulfide impurities from exhaust gas. The device for removing exhaust gas is intended to solve the technical problems that the existing devices for removing hydrogen sulfide impurities from exhaust gas usually find it difficult to fully contact the amine liquid with the exhaust gas, it is difficult to change the gas flow direction to achieve multiple contact reactions between the amine liquid and the exhaust gas, and it is difficult to improve the removal effect.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the present invention provides a device for removing hydrogen sulfide impurities in tail gas, which comprises a support box and a cover body fixedly installed on the upper end of the support box; a purification box is fixedly installed on the upper end of the cover body, a first fixed cylinder is fixedly installed on the right end of the purification box, a first air outlet pipe is fixedly installed on the right end of the first fixed cylinder, a return pipe is fixedly installed on the right end of the first air outlet pipe, one end of the return pipe passes through the cover body and extends to the interior of the cover body, a first supporting plate is fixedly installed on the right end of the support box, a first water pump and an amine liquid tank are fixedly installed on the upper end of the first supporting plate, a first water pumping pipe is fixedly installed on the water pumping port of the first water pump, one end of the first water pumping pipe passes through the amine liquid tank and extends to the interior of the amine liquid tank, and a first water outlet pipe is fixedly installed on the water outlet port of the first water pump , a first fixed pipe is movably provided on the outer wall of the cover body, one end of the first water outlet pipe is threadedly installed on the inner wall of the lower end of the first fixed pipe, and a uniformly distributed first water delivery pipe is fixedly installed on the lower end of the first water outlet pipe, the lower end of the first water delivery pipe passes through the cover body and extends to the inside of the cover body, the outer wall of the first water delivery pipe is connected to the inner wall layer of the cover body, and a third nozzle is fixedly installed on the lower end of the first water delivery pipe, a second bearing plate is fixedly installed on the left end of the support box, a second water pump and a support block are fixedly installed on the upper end of the second bearing plate, a spray tank is fixedly installed on the upper end of the support block, a support cylinder is fixedly installed on the upper end of the spray tank, a spray body is fixedly installed on the upper end of the support cylinder, and a connecting air pipe is fixedly installed on the upper end of the spray body, and one end of the connecting air pipe passes through the outer wall of the purification box and extends to the inside of the purification box.

[0009] When the exhaust gas removal device of the technical solution is used, the exhaust gas is injected into the cover body, the purification box can catalytically purify the exhaust gas by photolysis, and the exhaust gas can be circulated in the cover body through the reflux pipe and precipitated by the amine liquid sprayed by two water pumps. The atomization technology is used to atomize the alkali liquid and fully mix the exhaust gas of the hydrodesulfurization device for reaction, and the treated waste gas can enter the spray tank and be atomized and precipitated with alkali liquid again. The injection pipe mouth of the spray tank is the exhaust port, thereby realizing the desulfurization of hydrogen of the exhaust gas.

[0010] Preferably, an air injection pipe is fixedly installed at the front end of the support box, an air outlet body is fixedly installed at the upper end of the support box, and the rear end of the air injection pipe passes through the front end of the air outlet body and extends to the front inner wall of the air outlet body. The air outlet body is arranged to facilitate the rapid placement of the exhaust gas injected into the air injection pipe into the cover body.

[0011] Preferably, first air ducts are fixedly installed at both the front and rear ends of the air outlet body, and first through holes are evenly distributed through the inner and outer walls of the first air duct, and second air ducts are fixedly installed at both the left and right ends of the air outlet body, and second through holes are evenly distributed through the inner and outer walls of the second air duct. The first air duct and the second air duct are convenient for conveying the gas to be purified.

[0012] Preferably, a third through hole is formed through the front and rear ends of the air outlet body, the inner wall of the third through hole is in the same plane as the inner wall of the first air duct, a fourth through hole is formed through the left and right ends of the air outlet body, the inner wall of the fourth through hole is in the same plane as the inner wall of the second air duct, and ventilation slots are formed through the upper and lower ends of the air outlet body. The third through hole and the fourth through hole are provided to facilitate the flow of gas.

[0013] Preferably, a waste water pipe is fixedly provided at the lower end of the spray tank, a solenoid valve is fixedly provided on the waste water pipe, a symmetrical first fixed rod is fixedly provided on the inner wall of the upper end of the spray body, a third fixed pipe is fixedly provided on the lower end of the first fixed rod, a uniformly distributed first nozzle is fixedly provided on the lower end of the third fixed pipe, a second pumping pipe is fixedly provided on the pumping port of the second water pump, one end of the second pumping pipe penetrates the outer wall of the spray tank and extends to the inside of the spray tank, a second outlet pipe is fixedly provided on the outlet port of the second water pump, one end of the second outlet pipe penetrates the spray body and is interconnected with the third fixed pipe. The second water pump can be used to spray the waste gas in the spray tank with alkali solution again by atomization.

[0014] Preferably, the inner walls of the left and right ends of the purification box are fixed with fixing plates, the upper and lower ends of the fixing plates are penetrated with first slots, the inner walls of the first slots are fixed with uniformly distributed UV lamps, and the inner walls of the right and left ends of the purification box are penetrated with second slots. Turning on the UV lamp can achieve photocatalytic purification of exhaust gas.

[0015] Preferably, a symmetrical fixing frame is fixedly installed on the inner wall of the first air outlet pipe, a steel mesh is fixedly installed on the inner wall of the fixing frame, and activated carbon is movably installed on the inner wall of the lower end of the first air outlet pipe. The setting of the activated carbon can adsorb the exhaust gas to a certain extent.

[0016] Preferably, a second fixing rod is fixedly mounted on the inner wall of the first fixing cylinder, a third fixing cylinder is fixedly mounted on one end of the second fixing rod close to the center of the first fixing cylinder, and an exhaust fan is fixedly mounted on the inner wall of the third fixing cylinder. The exhaust fan is convenient for changing the flow direction of the gas, thereby realizing multiple cycles of spraying the exhaust gas.

[0017] Preferably, a second fixed cylinder is fixedly installed at the right end of the spray tank, the second fixed cylinder and the first fixed cylinder have the same structure, a second air outlet pipe is fixedly installed at the right end of the second fixed cylinder, and the right end of the second air outlet pipe penetrates the outer wall of the cover body and extends to the inside of the cover body. The waste gas can flow into the spray tank through the second air outlet pipe and the second fixed cylinder to be processed again.

[0018] Preferably, the upper end of the support box is fixedly installed with uniformly distributed second nozzles, the front inner wall of the support box is fixedly installed with a first water pipe, the water inlet port of the second nozzle penetrates the outer wall of the first water pipe and extends to the inside of the first water pipe, the front inner wall of the first water pipe is threadedly installed with a second water pipe, the second water pipe and the first water outlet pipe are mutually connected, the first water outlet pipe is fixedly connected with a third water pipe, the outer wall of one end of the third water pipe is threadedly installed with a second fixed pipe, the lower end of the second fixed pipe is fixedly installed with uniformly distributed second water pipes, the lower end of the second water pipe penetrates the outer wall of the cover body and extends to the inside of the cover body where a third nozzle is fixedly installed. The first water pump can spray the alkali solution through multiple third nozzles, thereby increasing the contact area between the alkali solution and the tail gas and improving the reaction effect.

[0019] (3) Beneficial effects

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the exhaust gas removal device of the present invention injects the exhaust gas into the cover body, the purification box can photocatalytically purify the exhaust gas, the exhaust gas can be circulated in the cover body through the reflux pipe and precipitated by the amine liquid sprayed by two water pumps, the atomization technology is used to atomize the alkali liquid and fully mix the exhaust gas of the hydrodesulfurization device, the exhaust fan is convenient to change the flow direction of the gas, so that multiple cycles of spraying of the exhaust gas can be achieved, and the treated exhaust gas can enter the spray tank and be atomized and precipitated with alkali liquid again, the injection pipe mouth of the spray tank is an exhaust port, so that the exhaust gas can be desulfurized hydrogen treatment, the exhaust fan is convenient to change the flow direction of the gas, so that multiple cycles of spraying of the exhaust gas can be achieved, the first water pump can spray the alkali liquid through multiple third nozzles, so as to increase the contact area between the alkali liquid and the exhaust gas, and improve the reaction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a specific embodiment of the tail gas removal device of the present invention;

[0022] Figure 2 A cross-sectional view of a spray body of a specific embodiment of the tail gas removal device of the present invention;

[0023] Figure 3 A cross-sectional view of a first gas outlet pipe of a specific embodiment of the tail gas removal device of the present invention;

[0024] Figure 4 A schematic diagram of the three-dimensional structure of a support box of a specific embodiment of the tail gas removal device of the present invention;

[0025] Figure 5 A three-dimensional structural diagram of an air outlet body of a specific embodiment of the exhaust gas removal device of the present invention;

[0026] Figure 6A perspective view of a cover body of a specific embodiment of the tail gas removal device of the present invention;

[0027] Figure 7 A cross-sectional view of a purification box of a specific embodiment of the tail gas removal device of the present invention;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the first water pipe of a specific embodiment of the tail gas removal device of the present invention.

[0029] The markings in the attached drawings are: 1, support box; 2, cover body; 3, purification box; 4, first fixed cylinder; 5, first air outlet pipe; 6, reflux pipe; 7, first bearing plate; 8, first water pump; 9, amine liquid tank; 10, first water extraction pipe; 11, first water outlet pipe; 12, first fixed pipe; 13, first water delivery pipe; 14, second bearing plate; 15, second water pump; 16, second water extraction pipe; 17, support block; 18, spray tank; 19, second water outlet pipe; 20, support cylinder; 21, spray body; 22, connecting air pipe; 23, second fixed cylinder; 24, second air outlet pipe; 25, air injection pipe; 26, first water pipe; 27, second water pipe; 28, The third water pipe; 29. ​​The second fixed pipe; 30. The second water pipe; 31. The waste water pipe; 32. The solenoid valve; 33. The first fixed rod; 34. The third fixed pipe; 35. The first nozzle; 36. The second fixed rod; 37. The third fixed cylinder; 38. The exhaust fan; 39. The fixed frame; 40. The wire mesh; 41. The activated carbon; 42. The second nozzle; 43. The air outlet body; 44. The ventilation slot; 45. The first air duct; 46. The first through hole; 47. The second air duct; 48. The second through hole; 49. The third through hole; 50. The fourth through hole; 51. The fixed plate; 52. The first tank body; 53. The UV lamp tube; 54. The second tank body; 55. The third nozzle. DETAILED DESCRIPTION

[0030] Example 1

[0031] This specific embodiment is a device for removing hydrogen sulfide impurities in tail gas, and its three-dimensional structural schematic diagram is shown as follows Figure 1 As shown, the cross-sectional view of the spray body 21 is as shown Figure 2As shown, the tail gas removal device includes a support box 1 and a cover body 2 fixedly installed on the upper end of the support box 1; a purification box 3 is fixedly installed on the upper end of the cover body 2, a first fixed cylinder 4 is fixedly installed on the right end of the purification box 3, a first air outlet pipe 5 is fixedly installed on the right end of the first fixed cylinder 4, a return pipe 6 is fixedly installed on the right end of the first air outlet pipe 5, one end of the return pipe 6 passes through the cover body 2 and extends to the inside of the cover body 2, a first bearing plate 7 is fixedly installed on the right end of the support box 1, a first water pump 8 and an amine liquid tank 9 are fixedly installed on the upper end of the first bearing plate 7, a first water pump 10 is fixedly installed on the water pumping port of the first water pump 8, one end of the first water pump 10 passes through the amine liquid tank 9, and a first water pump 10 is fixedly installed on the upper end of the first water pump 8. The liquid tank 9 extends to the interior of the amine liquid tank 9, a first water outlet pipe 11 is fixedly installed on the water outlet port of the first water pump 8, a first fixed pipe 12 is movably provided on the outer wall of the cover body 2, one end of the first water outlet pipe 11 is threadedly installed on the inner wall of the lower end of the first fixed pipe 12, a uniformly distributed first water delivery pipe 13 is fixedly installed on the lower end of the first water outlet pipe 11, the lower end of the first water delivery pipe 13 passes through the cover body 2 and extends to the interior of the cover body 2, the outer wall of the first water delivery pipe 13 is connected to the wall layer of the cover body 2, a third nozzle 55 is fixedly installed on the lower end of the first water delivery pipe 13, a second bearing plate 14 is fixedly installed on the left end of the support box 1, and the upper end of the second bearing plate 14 A second water pump 15 and a support block 17 are fixedly installed, a spray tank 18 is fixedly installed on the upper end of the support block 17, a support cylinder 20 is fixedly installed on the upper end of the spray tank 18, a spray body 21 is fixedly installed on the upper end of the support cylinder 20, a connecting air pipe 22 is fixedly installed on the upper end of the spray body 21, one end of the connecting air pipe 22 passes through the outer wall of the purification box 3 and extends to the interior of the purification box 3, an air injection pipe 25 is fixedly installed on the front end of the support box 1, an air outlet body 43 is fixedly installed on the upper end of the support box 1, the rear end of the air injection pipe 25 passes through the front end of the air outlet body 43 and extends to the front end inner wall of the air outlet body 43, and a symmetrical fixing frame is fixedly installed on the inner wall of the first air outlet pipe 5 39, a wire mesh 40 is fixedly installed on the inner wall of the fixed frame 39, activated carbon 41 is movably provided on the inner wall of the lower end of the first air outlet pipe 5, a second fixed rod 36 is fixedly installed on the inner wall of the first fixed cylinder 4, a third fixed cylinder 37 is fixedly installed on one end of the second fixed rod 36 close to the center of the first fixed cylinder 4, an exhaust fan 38 is fixedly installed on the inner wall of the third fixed cylinder 37, a second fixed cylinder 23 is fixedly installed on the right end of the spray tank 18, the second fixed cylinder 23 and the first fixed cylinder 4 have the same structure, a second air outlet pipe 24 is fixedly installed on the right end of the second fixed cylinder 23, and the right end of the second air outlet pipe 24 passes through the outer wall of the cover body 2 and extends to the inside of the cover body 2.

[0032] In order to achieve large-area contact between the tail gas and the alkali solution, the first air duct 45 is fixedly installed at both the front and rear ends of the air outlet body 43, and the inner and outer walls of the first air duct 45 are penetrated with uniformly distributed first through holes 46, and the left and right ends of the air outlet body 43 are fixedly installed with the second air duct 47, and the inner and outer walls of the second air duct 47 are penetrated with uniformly distributed second through holes 48, and the front and rear ends of the air outlet body 43 are penetrated with third through holes 49, and the inner wall of the third through hole 49 is in the same plane as the inner wall of the first air duct 45, and the left and right ends of the air outlet body 43 are penetrated with fourth through holes 50, and the inner wall of the fourth through hole 50 is in the same plane as the inner wall of the second air duct 47, and the upper and lower ends of the air outlet body 43 are penetrated with ventilation slots 44. The provision of the first air duct 45 and the second air duct 47 can achieve large-area contact between the tail gas and the alkali solution.

[0033] In order to improve the treatment effect of exhaust gas, a waste water pipe 31 is fixedly provided at the lower end of the spray tank 18, and a solenoid valve 32 is fixedly provided on the waste water pipe 31. A symmetrical first fixed rod 33 is fixedly installed on the inner wall of the upper end of the spray body 21, and a third fixed pipe 34 is fixedly installed at the lower end of the first fixed rod 33. A uniformly distributed first nozzle 35 is fixedly installed at the lower end of the third fixed pipe 34. A second water pumping pipe 16 is fixedly installed on the water pumping port of the second water pump 15, and one end of the second water pumping pipe 16 passes through the outer wall of the spray tank 18 and extends to the inside of the spray tank 18. A second water outlet pipe 19 is fixedly installed on the water outlet port of the second water pump 15, and one end of the second water outlet pipe 19 passes through the spray body 21 and is connected to the third fixed pipe 34. Then, the upper end of the support box 1 is fixedly installed with a uniformly distributed second nozzle 42, the front inner wall of the support box 1 is fixedly installed with a first water pipe 26, the water inlet port of the second nozzle 42 penetrates the outer wall of the first water pipe 26 and extends to the inside of the first water pipe 26, the front inner wall of the first water pipe 26 is threadedly installed with a second water pipe 27, the second water pipe 27 and the first water outlet pipe 11 are mutually connected, the first water outlet pipe 11 is fixedly connected with a third water pipe 28, the outer wall of one end of the third water pipe 28 is threadedly installed with a second fixed pipe 29, the lower end of the second fixed pipe 29 is fixedly installed with a uniformly distributed second water pipe 30, the lower end of the second water pipe 30 penetrates the outer wall of the cover body 2 and extends to the inside of the cover body 2 and is fixedly installed with a third nozzle 55. The tail gas after the reaction in the cover body 2 can flow into the spray tank 18 and be sprayed with alkali solution again, thereby improving the treatment effect of the tail gas, and the first water pump 8 can be turned on to spray the alkali solution through multiple third nozzles 55, thereby increasing the contact area between the tail gas and the alkali solution.

[0034] In order to achieve photolysis purification of tail gas, a fixing plate 51 is fixedly installed on the inner walls of the left and right ends of the purification box 3, a first slot 52 is penetrated through the upper and lower ends of the fixing plate 51, and uniformly distributed UV lamps 53 are fixedly installed on the inner wall of the first slot 52, and a second slot 54 is penetrated through the inner wall of the right and left ends of the purification box 3. The UV lamp 53 can be used to photocatalytically oxidize the tail gas, thereby improving the purification effect of the tail gas.

[0035] The cross-sectional view of the first exhaust pipe 5 of the exhaust removal device is as follows: Figure 3 As shown, the three-dimensional structural diagram of the support box 1 is as shown Figure 4 As shown, the three-dimensional structure diagram of the air outlet body 43 is as shown Figure 5 As shown, the perspective view of the cover body 2 is as shown Figure 6 As shown, the cross-sectional view of the purification box 3 is as shown Figure 7 As shown, the three-dimensional structural diagram of the first water delivery pipe 13 is as shown Figure 8 shown.

[0036] When the exhaust gas removal device of the present technical solution is used, the exhaust gas is injected into the cover body 2, and the UV lamp tube 53 in the purification box 3 can photocatalytically purify the exhaust gas. The exhaust fan 38 can be turned on to draw the exhaust gas, and the exhaust gas can be circulated in the cover body 2 through the reflux pipe 6 and precipitated by the amine liquid sprayed by two water pumps. The atomization technology is used to atomize the alkali liquid and fully mix the tail gas of the hydrodesulfurization device for reaction, and the treated waste gas can enter the spray tank 18 and be atomized and precipitated with alkali liquid again. The injection pipe mouth of the spray tank 18 is the exhaust port, and the first water pump 8 can spray the alkali liquid through multiple third nozzles 55, thereby increasing the contact area between the alkali liquid and the exhaust gas and improving the reaction effect.

Claims

1. A device for removing hydrogen sulfide impurities from tail gas, the tail gas removal device comprising a support box (1) and a cover body (2) fixedly mounted on the upper end of the support box (1); characterized in that: A purification box (3) is fixedly mounted on the upper end of the cover body (2); a first fixed cylinder (4) is fixedly mounted on the right end of the purification box (3); a first air outlet pipe (5) is fixedly mounted on the right end of the first fixed cylinder (4); a return pipe (6) is fixedly mounted on the right end of the first air outlet pipe (5); one end of the return pipe (6) passes through the cover body (2) and extends to the interior of the cover body (2); a first bearing plate (7) is fixedly mounted on the right end of the support box (1); an upper end of the first bearing plate (7) is fixedly mounted on the upper end of the first bearing plate (7); A first water pump (8) and an amine liquid tank (9) are fixedly installed at one end of the housing (2); a first water pumping pipe (10) is fixedly installed on the water pumping port of the first water pump (8); one end of the first water pumping pipe (10) penetrates the amine liquid tank (9) and extends to the interior of the amine liquid tank (9); a first water outlet pipe (11) is fixedly installed on the water outlet port of the first water pump (8); a first fixed pipe (12) is movably provided on the outer wall of the housing (2); one end of the first water outlet pipe (11) is threadedly installed on the first fixed pipe (12) The first water outlet pipe (11) is fixedly mounted on the lower end inner wall of the housing (2), the lower end of the first water outlet pipe (11) is fixedly mounted with a uniformly distributed first water delivery pipe (13), the lower end of the first water delivery pipe (13) penetrates the housing (2) and extends to the interior of the housing (2), the outer wall of the first water delivery pipe (13) is connected to the inner wall layer of the housing (2), the lower end of the first water delivery pipe (13) is fixedly mounted with a third nozzle (55), the left end of the support box (1) is fixedly mounted with a second bearing plate (14), the second bearing plate ( A second water pump (15) and a support block (17) are fixedly mounted on the upper end of the purification box (14); a spray tank (18) is fixedly mounted on the upper end of the support block (17); a support cylinder (20) is fixedly mounted on the upper end of the spray tank (18); a spray body (21) is fixedly mounted on the upper end of the support cylinder (20); a connecting air pipe (22) is fixedly mounted on the upper end of the spray body (21); one end of the connecting air pipe (22) passes through the outer wall of the purification box (3) and extends to the interior of the purification box (3).

2. A device for removing hydrogen sulfide impurities from tail gas according to claim 1, characterized in that: An air injection pipe (25) is fixedly mounted on the front end of the support box (1), an air outlet body (43) is fixedly mounted on the upper end of the support box (1), and a rear end of the air injection pipe (25) penetrates the front end of the air outlet body (43) and extends to the front end inner wall of the air outlet body (43).

3. A device for removing hydrogen sulfide impurities in tail gas according to claim 2, characterized in that: The front and rear ends of the air outlet body (43) are both fixedly mounted with first air guide tubes (45), and the inner and outer walls of the first air guide tube (45) are penetrated with uniformly distributed first through holes (46); the left and right ends of the air outlet body (43) are both fixedly mounted with second air guide tubes (47), and the inner and outer walls of the second air guide tube (47) are penetrated with uniformly distributed second through holes (48).

4. A device for removing hydrogen sulfide impurities from tail gas according to claim 3, characterized in that: The front and rear ends of the air outlet body (43) are penetrated by third through holes (49), the inner wall of the third through hole (49) is in the same plane as the inner wall of the first air guide tube (45), the left and right ends of the air outlet body (43) are penetrated by fourth through holes (50), the inner wall of the fourth through hole (50) is in the same plane as the inner wall of the second air guide tube (47), and the upper and lower ends of the air outlet body (43) are penetrated by ventilation grooves (44).

5. The device for removing hydrogen sulfide impurities from tail gas according to claim 1, characterized in that: A waste water pipe (31) is fixedly arranged at the lower end of the spray tank (18), and a solenoid valve (32) is fixedly arranged on the waste water pipe (31); a symmetrical first fixed rod (33) is fixedly installed on the inner wall of the upper end of the spray body (21); a third fixed pipe (34) is fixedly installed at the lower end of the first fixed rod (33); and evenly distributed first nozzles (35) are fixedly installed at the lower end of the third fixed pipe (34); a second water pump (16) is fixedly installed on the water pumping port of the second water pump (15); one end of the second water pump (16) passes through the outer wall of the spray tank (18) and extends to the inside of the spray tank (18); a second water outlet pipe (19) is fixedly installed on the water outlet port of the second water pump (15); one end of the second water outlet pipe (19) passes through the spray body (21) and is interconnected with the third fixed pipe (34).

6. A device for removing hydrogen sulfide impurities from tail gas according to claim 5, characterized in that: The inner walls of the left and right ends of the purification box (3) are fixedly mounted with fixing plates (51), the upper and lower ends of the fixing plate (51) are penetrated with a first slot body (52), the inner wall of the first slot body (52) is fixedly mounted with uniformly distributed UV lamp tubes (53), and the inner walls of the right and left ends of the purification box (3) are penetrated with a second slot body (54).

7. The device for removing hydrogen sulfide impurities from tail gas according to claim 1, characterized in that: A symmetrical fixing frame (39) is fixedly mounted on the inner wall of the first air outlet pipe (5), a steel wire mesh (40) is fixedly mounted on the inner wall of the fixing frame (39), and activated carbon (41) is movably mounted on the inner wall of the lower end of the first air outlet pipe (5).

8. The device for removing hydrogen sulfide impurities from tail gas according to claim 1, characterized in that: A second fixing rod (36) is fixedly mounted on the inner wall of the first fixing cylinder (4); a third fixing cylinder (37) is fixedly mounted on one end of the second fixing rod (36) close to the center of the first fixing cylinder (4); and an exhaust fan (38) is fixedly mounted on the inner wall of the third fixing cylinder (37).

9. The device for removing hydrogen sulfide impurities from tail gas according to claim 1, characterized in that: A second fixed cylinder (23) is fixedly mounted on the right end of the spray tank (18); the second fixed cylinder (23) and the first fixed cylinder (4) are of the same structure; a second air outlet pipe (24) is fixedly mounted on the right end of the second fixed cylinder (23); the right end of the second air outlet pipe (24) penetrates the outer wall of the cover body (2) and extends to the interior of the cover body (2).

10. The device for removing hydrogen sulfide impurities from tail gas according to claim 1, characterized in that: The upper end of the support box (1) is fixedly mounted with uniformly distributed second nozzles (42); the front inner wall of the support box (1) is fixedly mounted with a first water pipe (26); the water inlet port of the second nozzle (42) penetrates the outer wall of the first water pipe (26) and extends to the interior of the first water pipe (26); the front inner wall of the first water pipe (26) is threadedly mounted with a second water pipe (27); the second water pipe (27) and the first water outlet pipe (11) are interconnected; the first water outlet pipe (11) is fixedly connected with a third water pipe (28); the outer wall of one end of the third water pipe (28) is threadedly mounted with a second fixed pipe (29); the lower end of the second fixed pipe (29) is fixedly mounted with uniformly distributed second water pipes (30); the lower end of the second water pipe (30) penetrates the outer wall of the cover body (2) and extends to the interior of the cover body (2) where a third nozzle (55) is fixedly mounted.

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