CN212017334U

CN212017334U - Spray tower for industrial waste gas treatment

Info

Publication number: CN212017334U
Application number: CN202020440280.9U
Authority: CN
Inventors: 张建新
Original assignee: Tongxiang Longshun Environmental Protection Engineering Co ltd
Current assignee: Tongxiang Longshun Environmental Protection Engineering Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-11-27
Anticipated expiration: 2030-03-30

Abstract

The utility model relates to a spray column field especially relates to a spray column for industrial waste gas treatment, which comprises a tank body, the air-supply line, go out the tuber pipe, air-supply line and exhaust gas piping intercommunication, go out tuber pipe and emission chimney intercommunication, the inner chamber internal fixation of the jar body has alkaline liquid case and acidic liquid case, the alkaline liquid case is located the top of acidic liquid case, the one end of the internal chamber of air-supply line intercommunication jar and the inner chamber intercommunication of acidic liquid case, the alkaline liquid incasement is provided with the connecting piece, the outside of the jar body is provided with the backward flow case, be fixed with the baffle in the middle of the backward flow case, the baffle is cut apart into first space and second space with the backward flow case, be provided with first backward flow piece on the backward flow case, still be provided with second backward flow piece on the backward flow case, this kind of spray column both can be.

Description

Spray tower for industrial waste gas treatment

Technical Field

The utility model belongs to the technical field of the spray column technique and specifically relates to a spray column for industrial waste gas treatment is related to.

Background

With the increase of industrialization degree, the pollution of industrial waste gas is becoming more serious, and in order to protect the environment, a purifying device with excellent performance is required to treat high-concentration harmful gas discharged in industry. The existing industrial waste gas not only comprises dust, dust and other large particles, but also is acid-base gas, and the gas can cause serious influence on human health after being dissipated in the air.

The utility model with the publication number of CN205392153U relates to an acid mist spray tower, which comprises a spray tower outer wall, a gas delivery pipe, a blower, a cross grate, a packing layer, a liquid delivery pipe, a water pump, a first spray pipe, a second spray pipe, an adjusting box and a third spray pipe; the air blower is arranged in the gas conveying pipe, the gas conveying pipe penetrates through the outer wall of the spray tower and is arranged at the lower part of the acid mist spray tower, the gas conveying pipe in the acid mist spray tower is positioned below the liquid level, and the gas conveying pipe in the acid mist spray tower is provided with small exhaust holes; the liquid conveying pipe is arranged on the outer wall of the spray tower and is positioned below the gas conveying pipe in the acid mist spray tower; the liquid conveying pipe is connected with the water pump, and the water pump is connected with the first spraying pipe, the second spraying pipe and the adjusting box through pipelines; and a transverse grate and a packing layer are arranged between the first spray pipe and the bottom end of the outer wall of the spray tower. The utility model can fully neutralize the acid component in the acid mist.

The above patents can only neutralize acid components, and it is known that, in the existing industrial waste gas, not only the acid gas can seriously pollute the environment, but also the alkaline gas can bring harm to human body when being discharged into the atmosphere, but the acid mist spray tower disclosed in the above patents can only treat the acid waste gas, and can not treat the alkaline waste gas.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects existing in the prior art, the utility model aims to provide a spray tower for industrial waste gas treatment, which has the effects of neutralizing acid gas and alkaline gas.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a spray column for industrial waste gas treatment, includes the jar body, fixes the air-supply line on a jar external wall, fixes the play tuber pipe on jar external end outer wall, the air-supply line communicates with the exhaust gas pipeline in the factory, it communicates with the gaseous emission chimney in the factory through draught fan to go out the tuber pipe, the inner intracavity of the jar body is fixed with alkaline liquid case and acid liquid case, alkaline liquid case is located the top of acid liquid case, the one end of air-supply line intercommunication jar internal chamber communicates with the inner chamber of acid liquid case, alkaline liquid incasement is provided with and is used for flowing into the connecting piece in the alkaline liquid case from the gas that acid liquid incasement flows, the outside of the jar body is provided with the backward flow case, the backward flow incasement middle part is fixed with the baffle, the baffle will the backward flow case is cut apart into the first space that is used for depositing acid liquid and the second space that is used, the reflux box is provided with a first reflux piece for refluxing the acidic liquid in the first space into the acidic liquid box, and the reflux box is also provided with a second reflux piece for refluxing the alkaline liquid in the second space into the alkaline liquid box.

By adopting the technical scheme, when the spray tower is used for treating the acidic waste gas, the acidic waste gas flows into the tank body from the air inlet pipe and flows into the alkaline liquid tank through the connecting piece, so that the acid waste gas and the alkaline solution are fully neutralized and pass through the second reflux piece again, so that the alkaline solution and the acid waste gas overflowing from the alkaline liquid tank are neutralized again, thereby leading the discharged gas to be in composite discharge standard, when the spray tower is used for treating the alkaline waste gas, the alkaline waste gas is fully contacted with the acid solution and neutralized when flowing through the acid liquid tank, and passes through the first backflow piece again, so that the acid solution and the acid waste gas overflowing from the acid liquid tank are neutralized again, therefore, the discharged gas is combined with the emission standard, and the spray tower can be used for treating acidic waste gas and alkaline waste gas.

The utility model discloses further set up to: the connecting piece includes the standpipe of wearing to establish in the alkaline liquid case, fixes the first return bend on the standpipe up end, fixes the second return bend that keeps away from standpipe one end at first return bend, standpipe one end is worn out the outer wall lower surface of alkaline liquid case, and the other end is located the top of alkaline liquid case liquid level, the one end that the standpipe was kept away from to first return bend is located the liquid level of alkaline liquid case, the second return bend is kept away from first return bend one end and is located the liquid level of alkaline liquid case.

By adopting the technical scheme, after the waste overflows from the liquid level of the acidic liquid tank, the waste flows through the first bent pipe from the vertical pipe, then flows through the second bent pipe, finally overflows from the liquid level of the alkaline liquid tank, and finally is discharged from the air outlet pipe through the discharge chimney.

The utility model discloses further set up to: an air inlet one-way valve for limiting acid liquid backflow is fixed in the inner cavity of the air inlet pipe, and an air outlet one-way valve for limiting alkaline liquid backflow is fixed in the inner cavity of the vertical pipe.

Through adopting above-mentioned technical scheme, the check valve that admits air makes the acid solution of acid liquid incasement difficult to flow back in the air-intake pipe, and the check valve that gives vent to anger makes the alkaline solution of alkaline liquid incasement difficult to flow into in the acid liquid case from the standpipe.

The utility model discloses further set up to: the first backflow part comprises a first pump arranged in a first space, a first flow guide pipe fixed on a water outlet of the first pump, a first shower head fixed at one end of the first flow guide pipe, which is far away from the first pump, and a second flow guide pipe fixed between the backflow box and the acidic liquid box, wherein one end of the first flow guide pipe is positioned in the first space, the other end of the first flow guide pipe extends into an inner cavity of the tank body, the first shower head is positioned below the vertical pipe, one end of the second flow guide pipe is communicated with the inner cavity of the first space, and the other end of the second flow guide pipe is communicated with the inner cavity of the acidic liquid box.

Through adopting above-mentioned technical scheme, when the spray column was used for handling alkaline waste gas, the first pump sprayed the acid solution in with first space through first gondola water faucet, and the acid liquid who sprays instils into the acid liquid incasement, and the alkaline waste gas that overflows from the acid liquid case liquid level contacts with the acid liquid who sprays once more for alkaline waste gas bigger degree by the neutralization, thereby has promoted the performance of spray column, has reduced environmental pollution.

The utility model discloses further set up to: the second backward flow spare is including setting up the second pump in the second space, fixing the third honeycomb duct on the second pump outlet, fixing the second gondola water faucet of keeping away from second pump one end at the third honeycomb duct, fixing the fourth honeycomb duct between alkaline liquid case and flow-back case, third honeycomb duct one end is located the second space, and the other end stretches into the inner chamber of the jar body and is located the top of alkaline liquid case, the second gondola water faucet is located the inner chamber of the jar body, the inner chamber in fourth honeycomb duct one end intercommunication alkaline liquid case, the inner chamber in other end intercommunication second space.

By adopting the technical scheme, when the spray tower is used for treating the acidic waste gas, the second pump sprays the alkaline solution in the second space through the second shower head, the sprayed alkaline liquid is dripped into the alkaline liquid tank, and the acidic waste gas overflowing from the liquid surface of the alkaline liquid tank is contacted with the sprayed alkaline liquid again, so that the acidic waste gas is neutralized to a greater extent, the performance of the spray tower is improved, and the environmental pollution is reduced.

The utility model discloses further set up to: a layer of toughened glass film is fixed on the inner wall of the tank body, and a ceramic Raschig ring particle layer is fixed on the inner wall of the upper end of the tank body.

Through adopting above-mentioned technical scheme, ceramic raschig ring has excellent acidproof heat resistance, has tower wall bias flow and channeling phenomenon simultaneously, and ceramic raschig ring granule layer can liquefy vaporific exhaust gas granule for the exhaust gas after the liquefaction drips into alkaline liquid incasement, makes and carries acidic or alkaline vaporific granule to be difficult to directly be discharged into the atmospheric environment, has reduced environmental pollution.

The utility model discloses further set up to: and a first PH tester for testing the PH of the acidic solution is fixed on the outer wall of the first space, and a second PH tester for testing the PH of the alkaline solution is fixed on the outer wall of the second space.

Through adopting above-mentioned technical scheme, through first PH tester, can test the pH value of the acidic liquid in the first space, because the inner chamber in first space and the inner chamber intercommunication of acidic liquid case, the pH value in the acidic liquid incasement equals with the pH value in the first space to can be clear know whether need add acidic reagent to the acidic liquid incasement, also can be clear through second PH tester know whether need add alkaline reagent to the alkaline liquid incasement, ensure that the spray column has good exhaust-gas treatment performance.

The utility model discloses further set up to: the improved chemical dosing device is characterized in that a dosing box is arranged on the upper surface of the outer wall of the backflow box, a layer of baffle is fixed in the dosing box, the baffle divides an inner cavity of the dosing box into a third space and a fourth space, a fifth flow guide pipe is fixed at the bottom of the dosing box, one end of the fifth flow guide pipe is communicated with the third space, the other end of the fifth flow guide pipe is communicated with the first space, a first valve is arranged on the outer wall of the fifth flow guide pipe, a sixth flow guide pipe is fixed at the bottom of the dosing box, one end of the sixth flow guide pipe is communicated with the fourth space, the other end of the sixth flow guide pipe is communicated with the second space.

Through adopting above-mentioned technical scheme, when the PH value of acid liquid incasement is close 7, add acid medicament this moment in the third space, then pour into water and mix the stirring, rotate first valve, make acid solution after mixing flow into acid liquid incasement, when the PH value of alkali liquid incasement is close to 7, add alkaline medicament this moment in the fourth space and then pour into water again and mix the stirring, rotate the second valve, make alkali solution after mixing flow into in the second space, thereby ensure that the spray column has good exhaust-gas treatment performance, environmental pollution has been reduced.

To sum up, the utility model discloses a beneficial technological effect does: by arranging the acid liquid tank and the alkaline liquid tank, the spray tower can be used for treating acid waste gas and alkaline waste gas; the air inlet one-way valve is arranged, so that the acidic solution in the acidic liquid tank is difficult to flow back into the air inlet pipe; the air outlet one-way valve is arranged, so that alkaline solution in the alkaline liquid tank is difficult to flow into the acidic liquid tank from the vertical pipe; through setting up first pump and first gondola water faucet, make alkaline waste gas can fully contact with acid solution, and then with its neutralization, through setting up second pump and second gondola water faucet, make acidic waste gas can fully contact with alkaline solution, and then with wherein neutralization, the purification performance of spray column has been promoted, environmental pollution has been reduced, through setting up ceramic raschig ring grained layer, make it is difficult to directly by the atmospheric environment of being discharged to carry acidic or alkaline vaporific granule, environmental pollution has been reduced, through setting up first PH tester and second PH tester, the PH value of acid solution and alkaline solution is known to can understand, the staff of being convenient for adds acid medicament in to the third space, add alkaline medicament to the fourth space, thereby ensure that spray column has good exhaust-gas treatment performance, environmental pollution has been reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is an exploded view of the entire structure of the inside of the tank body in the present embodiment;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

Reference numerals: 1. a tank body; 2. an air inlet pipe; 3. an air outlet pipe; 4. an alkaline liquid tank; 5. an acid liquid tank; 6. a connecting member; 7. a return tank; 8. a partition plate; 9. a first space; 10. a second space; 11. a first return; 12. a second return member; 13. a vertical tube; 14. a first bend pipe; 15. a second bend pipe; 16. an air inlet check valve; 17. an air outlet one-way valve; 18. a first pump; 19. a first draft tube; 20. a first shower head; 21. a second draft tube; 22. a second pump; 23. a third draft tube; 24. a second shower head; 25. a fourth draft tube; 26. tempering the glass film; 27. a ceramic raschig ring particle layer; 28. a first pH tester; 29. a second pH tester; 30. a dosing box; 31. a baffle plate; 32. a third space; 33. a fourth space; 34. a fifth draft tube; 35. a first valve; 36. a sixth draft tube; 37. a second valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, for the utility model discloses a spray column for industrial waste gas treatment, which comprises a tank body 1, be fixed with the air-supply line 2 on the outer wall of the jar body 1, be fixed with out tuber pipe 3 on the upper end outer wall of the jar body 1, the one end that jar body 1 was kept away from to the air-supply line 2 is connected on the air outlet in the factory, the play tuber pipe 3 of the jar body 1 communicates through the discharge chimney in draught fan and the factory, the air discharge fan in the factory emits into air-supply line 2 with acid waste gas or alkaline waste gas in, then the drive draught fan rotates, make the interior intracavity of the interior exhaust acid-base waste gas of factory from the air-supply line 2 by the suction jar body 1, and then filtered back is followed out tuber pipe 3 again and is by the suction, then discharge chimney is followed again.

As shown in fig. 2, an acidic liquid tank 5 and an alkaline liquid tank 4 are fixed in an inner cavity of the tank body 1, the acidic liquid tank 5 is located below the alkaline liquid tank 4, the acidic liquid tank 5 and the alkaline liquid tank 4 are both made of glass fiber reinforced plastic, the air inlet pipe 2 is communicated with the inner cavity of the acidic liquid tank 5, an air inlet check valve 16 is fixed in the inner cavity of the air inlet pipe 2, and a gap is reserved between the alkaline liquid tank 4 and the acidic liquid tank 5.

As shown in fig. 2, the alkaline liquid tank 4 is provided with a connecting member 6 for flowing gas flowing out from the acidic liquid tank 5 into the alkaline liquid tank 4, the connecting member 6 includes a vertical pipe 13, a first bent pipe 14 and a second bent pipe 15, the vertical pipe 13 is inserted into the alkaline liquid tank 4, one end of the vertical pipe 13 is located above the alkaline liquid tank 4, the other end of the vertical pipe extends out of the lower surface of the outer wall of the alkaline liquid tank 4, an air outlet one-way valve 17 is fixed in the inner cavity of the vertical pipe 13, one end of the first bent pipe 14 is fixedly connected to the upper end of the vertical pipe 13, the other end of the first bent pipe extends into the inner cavity of the alkaline liquid tank 4, one end of the second bent pipe 15 is fixed at one end of the first bent pipe 14 far from the vertical pipe 13, the other end of the second bent pipe is vertically oriented and located in the inner cavity of the alkaline liquid tank 4, the.

As shown in fig. 2 and 3, a return box 7 is arranged outside the tank body 1, a partition plate 8 is fixed in the middle of the return box 7, the partition plate 8 divides the inner cavity of the return box 7 into a first space 9 and a second space 10, the first space 9 is used for storing acidic liquid, the second space 10 is used for storing alkaline liquid, a dosing box 30 is arranged on the upper surface of the outer wall of the return box 7, a baffle plate 31 is fixed in the dosing box 30, the baffle plate 31 divides the inner cavity of the dosing box 30 into a third space 32 and a fourth space 33, the third space 32 is positioned above the first space 9, the fourth space 33 is positioned above the second space 10, a fifth guide pipe 34 is fixed at the bottom of the dosing box 30, one end of the fifth guide pipe 34 is communicated with the inner cavity of the first space 9, the other end of the fifth guide pipe is communicated with the inner cavity of the third space 32, a first valve 35 is arranged on the outer wall of the fifth guide pipe 34, a sixth guide pipe 36 is fixed at the, one end of the sixth flow guide pipe 36 is communicated with the inner cavity of the fourth space 33, the other end is communicated with the inner cavity of the second space 10, and a second valve 37 is arranged on the outer wall of the sixth flow guide pipe 36.

As shown in fig. 2, a first PH tester 28 for testing the PH value of the acidic liquid is arranged outside the first space 9, a second PH tester 29 for testing the PH value of the alkaline liquid is arranged outside the second space 10, and both the first PH tester 28 and the second PH tester 29 are fixed on the outer wall of the backflow box 7.

As shown in fig. 1 and fig. 2, a first backflow component 11 for refluxing the acidic liquid in the first space 9 to the acidic liquid tank 5 is disposed on the backflow tank 7, the first backflow component 11 includes a first pump 18, a first diversion pipe 19, a first shower head 20 and a second diversion pipe 21, the first pump 18 is fixed on the backflow tank 7, a water inlet of the first pump 18 is communicated with an inner cavity of the first space 9 through a water pipe, one end of the first diversion pipe 19 is fixed on a water outlet of the first pump 18, the other end of the first diversion pipe extends into the inner cavity of the tank body 1, one end of the first diversion pipe 19, which is far away from the first pump 18, is located between the alkaline liquid tank 4 and the acidic liquid tank 5, the first shower head 20 is fixed on one end of the first diversion pipe 19, which is far away from the first pump 18, one end of the second diversion pipe 21 extends into the inner cavity of the first space 9, and the other end extends.

As shown in fig. 1 and fig. 2, the backflow box 7 is further provided with a second backflow member 12 for returning the alkaline liquid in the second space 10 to the alkaline liquid box 4, the second backflow member 12 includes a second pump 22, a third flow guide pipe 23, a second shower head 24 and a fourth flow guide pipe 25, a water inlet of the second pump 22 is communicated with an inner cavity of the second space 10, the second pump 22 is fixed on the backflow box 7, one end of the third flow guide pipe 23 is fixed on a water outlet of the second pump 22, the other end of the third flow guide pipe 23 extends into the inner cavity of the tank body 1, one end of the third flow guide pipe 23, which is far away from the second pump 22, is located above the alkaline liquid box 4, the second shower head 24 is fixed at one end of the third flow guide pipe 23, which is far away from the second pump 22, one end of the fourth flow guide pipe 25 extends into the inner cavity of the tank body 1 and is communicated with the inner cavity of the alkaline liquid box.

As shown in fig. 2, a layer of toughened glass film 26 is fixed in the inner cavity of the tank body 1, and toughened glass solution is sprayed on the inner wall of the tank body 1 in an electrophoresis mode, so that the acid resistance and the alkali resistance of the tank body 1 are enhanced, the service life of the tank body 1 is prolonged, and a ceramic raschig ring particle layer 27 is fixed in the inner cavity at the upper end of the tank body 1.

The implementation principle of the embodiment is as follows: when alkaline waste gas is discharged in a workshop of a factory, an exhaust fan in the workshop is started, the alkaline gas in the workshop is discharged into a waste gas pipeline, an induced draft fan is started, the alkaline waste gas in the waste gas pipeline flows into the acidic liquid tank 5 from the air inlet pipe 2, the alkaline waste gas is fully contacted with the acidic solution in the acidic liquid tank 5, most of the alkaline waste gas is neutralized, meanwhile, the first pump 18 is started, the acidic solution in the first space 9 passes through the first guide pipe 19 by the first pump 18, the spraying position on the first shower head 20 is formed, the residual alkaline waste gas is contacted with the sprayed acidic liquid, the alkaline waste gas is neutralized, the residual neutral gas enters the upper part of the alkaline liquid tank 4 from the vertical pipe 13, and when residual alkaline fog-shaped water drops exist, the residual alkaline gas drops are liquefied when passing through the ceramic raschig ring particle layer 27 and then drop into the alkaline liquid tank 4, the gas from the air outlet pipe 3 is relatively weak in alkalinity, and the pollution to the atmospheric environment is little, when the spray tower is used for discharging acidic waste gas in a factory, the acidic waste gas flows into the inner cavity of the alkaline liquid tank 4 from the vertical pipe 13, and meanwhile, the second pump 22 sprays the alkaline solution through the second shower head 24, so that the acidic waste gas is fully neutralized, the gas from the air outlet pipe 3 is relatively weak in acidity, and the pollution to the atmospheric environment is little.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a spray column for industrial waste gas treatment, includes a jar body (1), fixes air-supply line (2) on jar body (1) outer wall, fixes play tuber pipe (3) on jar body (1) upper end outer wall, air-supply line (2) and the exhaust gas pipeline intercommunication in the factory, go out tuber pipe (3) and communicate its characterized in that through draught fan and the gaseous emission chimney in the factory: an alkaline liquid tank (4) and an acidic liquid tank (5) are fixed in an inner cavity of the tank body (1), the alkaline liquid tank (4) is located above the acidic liquid tank (5), one end of the inner cavity of the tank body (1) is communicated with the inner cavity of the acidic liquid tank (5) through the air inlet pipe (2), a connecting piece (6) used for enabling gas flowing out of the acidic liquid tank (5) to flow into the alkaline liquid tank (4) is arranged in the alkaline liquid tank (4), a backflow tank (7) is arranged on the outer side of the tank body (1), a partition plate (8) is fixed in the middle of the backflow tank (7), the backflow tank (7) is divided into a first space (9) used for storing acidic liquid and a second space (10) used for storing the alkaline liquid through the partition plate (8), a first backflow piece (11) used for enabling the acidic liquid in the first space (9) to flow back into the acidic liquid tank (5) is arranged on the backflow tank (7), the return tank (7) is also provided with a second return piece (12) for returning the alkaline liquid in the second space (10) to the alkaline liquid tank (4).

2. The spray tower for industrial waste gas treatment according to claim 1, wherein: connecting piece (6) including wear to establish standpipe (13) in alkaline liquid case (4), fix first return bend (14) on standpipe (13) up end, fix second return bend (15) of keeping away from standpipe (13) one end in first return bend (14), the outer wall lower surface of alkaline liquid case (4) is worn out to standpipe (13) one end, and the other end is located the top of alkaline liquid case (4) liquid level, the one end that standpipe (13) were kept away from in first return bend (14) is located the liquid level of alkaline liquid case (4), second return bend (15) are kept away from first return bend (14) one end and are located the liquid level of alkaline liquid case (4).

3. The spray tower for industrial waste gas treatment according to claim 2, wherein: an air inlet one-way valve (16) used for limiting acid liquid backflow is fixed in the inner cavity of the air inlet pipe (2), and an air outlet one-way valve (17) used for limiting alkaline liquid backflow is fixed in the inner cavity of the vertical pipe (13).

4. The spray tower for industrial waste gas treatment according to claim 3, wherein: first backward flow spare (11) are including setting up first pump (18) in first space (9), fixing first honeycomb duct (19) on first pump (18) delivery port, fixing first gondola water faucet (20) of keeping away from first pump (18) one end in first honeycomb duct (19), fixing second honeycomb duct (21) between backward flow case (7) and acid liquid case (5), first honeycomb duct (19) one end is located first space (9), and the other end extends to the inner chamber of the jar body (1), first gondola water faucet (20) are located the below of standpipe (13), the inner chamber intercommunication of second honeycomb duct (21) one end and first space (9), the other end and acid liquid case (5) inner chamber intercommunication.

5. The spray tower for industrial waste gas treatment according to claim 4, wherein: second backward flow spare (12) are including setting up second pump (22) in second space (10), fixing third honeycomb duct (23) on second pump (22) delivery port, fixing second gondola water faucet (24) of keeping away from second pump (22) one end in third honeycomb duct (23), fixing fourth honeycomb duct (25) between alkaline liquid case (4) and backward flow case (7), third honeycomb duct (23) one end is located second space (10), and the other end stretches into the interior intracavity of the jar body (1) and is located the top of alkaline liquid case (4), second gondola water faucet (24) are located the interior chamber of the jar body (1), the inner chamber of fourth honeycomb duct (25) one end intercommunication alkaline liquid case (4), the inner chamber of the other end intercommunication second space (10).

6. The spray tower for industrial waste gas treatment according to claim 5, wherein: a layer of toughened glass film (26) is fixed on the inner wall of the tank body (1), and a ceramic raschig ring particle layer (27) is fixed on the inner wall of the upper end of the tank body (1).

7. The spray tower for industrial waste gas treatment according to claim 6, wherein: a first PH tester (28) for testing the PH of the acidic solution is fixed on the outer wall of the first space (9), and a second PH tester (29) for testing the PH of the alkaline solution is fixed on the outer wall of the second space (10).

8. The spray tower for industrial waste gas treatment according to claim 7, wherein: be provided with dosing box (30) on the outer wall upper surface of backward flow case (7), dosing box (30) internal fixation has one deck baffle (31), baffle (31) divide the inner chamber of dosing box (30) into third space (32) and fourth space (33), the bottom of dosing box (30) is fixed with fifth honeycomb duct (34), fifth honeycomb duct (34) one end intercommunication third space (32), the first space of other end intercommunication (9), be provided with first valve (35) on the outer wall of fifth honeycomb duct (34), the bottom of dosing box (30) is fixed with sixth honeycomb duct (36), sixth honeycomb duct (36) one end intercommunication fourth space (33), other end intercommunication second space (10), be provided with second valve (37) on the outer wall of sixth honeycomb duct (36).