Limestone desulfurization device

By designing hoisting and fixing components and internal cleaning components, the problems of sprayer height adjustment and drying were solved, achieving stable operation and efficient desulfurization of the limestone desulfurization unit.

CN223464653UActive Publication Date: 2025-10-24DONGPAN TECH CO LTD
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Patent Information

Application Number
CN202422902463.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-10-24
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

In existing limestone desulfurization units, the sprayers are difficult to adjust in height, and the residual limestone slurry in the sprayers dries and clogs them, affecting stable operation.

Method used

The design combines the hoisting and fixing components with the telescopic rod body. The height of the slurry spraying component can be adjusted by the hoisting base and the telescopic rod. It is also equipped with an internal cleaning component to clean up residual slurry and prevent it from drying and hardening.

Benefits of technology

The height of the slurry spraying component is adjustable, which facilitates debugging, improves the desulfurization effect, avoids slurry drying and blockage, and ensures the stable operation of the device.

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Abstract

The limestone desulfurization device comprises an absorption tower body, an inspection channel is formed in the front portion of the absorption tower body, a sealing door capable of being opened and closed is installed on the front end face of the inspection channel through a hinge, and a slurry spraying assembly is arranged at the position, corresponding to the inspection channel, in the absorption tower body. And the slurry spraying assembly is used for atomizing and spraying limestone slurry. The slurry spraying device has the beneficial effects that the slurry spraying assembly can be hoisted and fixed in the absorption tower body through the hoisting and fixing assemblies on the two sides, and meanwhile, the hoisting seats of the hoisting and fixing assemblies are combined and connected with the slurry spraying assembly through the telescopic rod bodies; the height of the working position of the slurry spraying assembly can be adjusted through vertical telescopic adjustment of the telescopic rod body and locking by tightening the locking screw, and the slurry spraying assembly can be conveniently adjusted to the proper working position height during later debugging.
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Description

TECHNICAL FIELD

[0001] The utility model relates to calcium sulfate whisker production auxiliary assembly field, concretely relates to a limestone desulfurization device. BACKGROUND

[0002] The main principle of limestone gypsum wet desulfurization is to use limestone or lime as a desulfurization absorbent, limestone is crushed into powder and mixed with water to form an absorption slurry, in the absorption tower, the absorption slurry is mixed with flue gas, sulfur dioxide in the flue gas reacts with calcium carbonate in the slurry and the oxidizing air to be removed, and the final reaction product is gypsum, which can be used as raw material for the production of calcium sulfate whiskers.

[0003] Specifically in the limestone desulfurization process, the limestone slurry is usually delivered into the spray of the absorption tower through the pipeline to spray the slurry in the tower in the form of mist to improve the desulfurization effect of the flue gas, but the current spray is usually installed by hoisting in the absorption tower, which cannot be adjusted in height, so it is not convenient to adjust the spray to the appropriate working position height during the later debugging, and when the limestone slurry is stopped, the residual limestone slurry in the spray cannot be cleaned, which will dry and block the inside of the spray, directly affecting the stable use of the spray. UTILITARIAN CONTENT

[0004] The utility model discloses a limestone desulfurization device, which can fix the slurry spraying assembly in the absorption tower body through the hoisting and fixing assembly on both sides, and the hoisting seat of the hoisting and fixing assembly is connected with the slurry spraying assembly through the telescopic rod body, so that the working position height of the slurry spraying assembly can be adjusted by vertically telescoping the telescopic rod body and locking it through the tightening screw after opening the sealing door.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] The utility model provides a limestone desulfurization device, which comprises an absorption tower body, a check channel is formed in the front part of the absorption tower body, and a sealing door capable of being opened and closed is installed on the front end face of the check channel through a hinge;

[0007] A slurry spraying assembly is arranged at the position height corresponding to the check channel in the absorption tower body, which can atomize and spray the limestone slurry through the slurry spraying assembly;

[0008] Both sides of the absorption tower body are provided with lifting fixing assemblies above the slurry spraying assembly, the bottom ends of the lifting fixing assemblies are fixed on the top of the slurry spraying assembly, and the slurry spraying assembly is suspended and fixed in the absorption tower body through the lifting fixing assemblies.

[0009] One side of the slurry spraying assembly is provided with an internal cleaning assembly for cleaning the limestone slurry stored in the internal cleaning assembly, and part of the internal cleaning assembly is located outside the absorption tower body.

[0010] Preferably, the slurry spraying assembly comprises a collecting tank and a slurry inlet pipe, the collecting tank is horizontally arranged in the absorption tower body and located at a position corresponding to the inspection channel, the collecting tank is a hollow tank and is uniformly and fixedly connected with a plurality of shunt pipes at the bottom surface, the bottom end of each shunt pipe is coaxially provided with a spray head for atomizing and spraying limestone slurry, one side of the collecting tank is provided with the internal cleaning assembly, the other side of the collecting tank is fixedly connected with an inlet connecting pipe, and the inlet connecting pipe is fixedly connected with a liquid conveying hose through a pipe joint one, the slurry inlet pipe penetrates into the absorption tower body from the outside in the transverse direction, and the inner end of the slurry inlet pipe is fixedly connected with the outer end of the liquid conveying hose through the pipe joint one.

[0011] Preferably, the outer end of the slurry inlet pipe is coaxially provided with the pipe joint one, and the part of the slurry inlet pipe protruding out of the absorption tower body is provided with a valve one for controlling opening and closing.

[0012] Preferably, the pipe joint one is a quick connector; the spray head is an atomizing spray head; and the liquid conveying hose is a metal hose.

[0013] Preferably, the lifting fixing assembly comprises a lifting seat and a telescopic rod body, the lifting seat is horizontally fixed on both sides of the absorption tower body above the collecting tank through a connecting seat, the telescopic rod body is vertically fixed on the bottom surface of the lifting seat above the collecting tank, and the bottom end of the telescopic rod body is fixed on the top surface of the collecting tank through a connecting sleeve.

[0014] Preferably, the telescopic rod body is a double-section telescopic rod with a locking screw, and the locking screw faces the inspection channel.

[0015] As preferred, the internal cleaning assembly comprises an air inlet pipe, an air flow inlet pipe and an air supply pump body, the liquid collecting tank is fixedly communicated with the air inlet pipe away from one side of the liquid inlet pipe, and the air inlet pipe is fixedly communicated with an air supply hose through pipe joint two, the air flow inlet pipe penetrates into the internal part from the lateral side of the outside of the absorption tower body, and the inner end of the air flow inlet pipe is fixedly communicated with the outer end of the air supply hose through pipe joint two, the air supply pump body is located outside of the absorption tower body, the air outlet on the top of the air supply pump body is fixedly communicated with an air supply pipe, and the other end of the air supply pipe is fixedly communicated with the outer end of the air flow inlet pipe through the pipe joint two.

[0016] As preferred, the part of the air flow inlet pipe extending out of the absorption tower body is provided with a valve two for controlling opening and closing; the pipe joint two is a quick connector; and the air supply hose is a metal hose.

[0017] In the use of the limestone desulfurization device, specifically in the use of the absorption tower body for limestone slurry desulfurization, the slurry spraying assembly can be hoisted and fixed in the absorption tower body through the hoisting and fixing assembly at both sides, and the hanger seat of the hoisting and fixing assembly is combined with the slurry spraying assembly through the telescopic rod body. After the sealing door is opened, the working position height of the slurry spraying assembly can be adjusted by loosening the locking screw first, then vertically adjusting the telescopic rod body and locking again by tightening the locking screw, so that the slurry spraying assembly can be adjusted to the appropriate working position height during later debugging. In the use of the slurry spraying assembly, a plurality of shunt pipes are fixedly and uniformly communicated with the bottom of the liquid collecting tank, and the nozzles are coaxially installed at the bottom of the shunt pipes. After the slurry supply pipeline is fixedly communicated with the slurry inlet pipe through the pipe joint one, the limestone slurry is input into the liquid collecting tank through the slurry inlet pipe and the liquid inlet pipe, and the nozzles at the bottom of the shunt pipes can spray the limestone slurry, which is easy to realize and can improve the limestone desulfurization effect. When the absorption tower body is maintained, the valve one is closed to interrupt the supply of limestone slurry, so that the maintenance work can be carried out smoothly. Since the internal cleaning assembly is installed on one side of the slurry spraying assembly, the limestone slurry remaining in the liquid collecting tank and the shunt pipes can be blown out and cleaned through the nozzles when the supply is interrupted, so that the internal part of the slurry spraying assembly is cleaned, and the remaining limestone slurry is prevented from drying and blocking the internal part of the slurry spraying assembly.

[0018] The beneficial effects are: 1, the slurry spraying assembly is hung and fixed in the absorption tower body through the hanging and fixing assembly at both sides, meanwhile, the hanging seat of the hanging and fixing assembly is combined and connected with the slurry spraying assembly through the telescopic rod body, then after the sealing door is opened, the working position height of the slurry spraying assembly can be adjusted through the vertical telescopic adjustment of the telescopic rod body and the locking mode of the tightening locking screw, so that the slurry spraying assembly can be adjusted to the appropriate working position height during the later debugging;

[0019] 2, the multiple shunt pipes are uniformly and fixedly communicated at the bottom of the liquid collecting tank of the slurry spraying assembly, and the spray heads are coaxially installed at the bottom of the shunt pipes, then after the limestone slurry is input into the liquid collecting tank through the liquid inlet pipe and the liquid inlet connector, the limestone slurry can be atomized and sprayed out through the spray heads at the bottom ends of the multiple shunt pipes, the spraying mode of the limestone slurry is uniform and easy to realize, and the limestone desulfurization effect is improved.

[0020] 3, the internal cleaning assembly is installed on one side of the slurry spraying assembly, then when the feeding is interrupted, the limestone slurry remaining in the liquid collecting tank and the shunt pipes can be blown out and cleaned through the spray heads by the mode that the gas inlet pump body of the internal cleaning assembly inputs the gas flow into the liquid collecting tank of the slurry spraying assembly through the gas inlet connector, the internal cleaning of the slurry spraying assembly is realized, and the remaining limestone slurry is prevented from drying and blocking the internal part of the slurry spraying assembly. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 is the overall isometric view of the present application;

[0023] Figure 2 is the overall isometric view of the present application Figure 1 ; Figure 1 ;

[0024] Figure 3 is the overall isometric view of the present application Figure 1 ; Figure 2 ;

[0025] Figure 4 is the overall isometric view of the present application Figure 1 ;

[0026] Figure 5 is the overall isometric view of the present application Figure 1 ;

[0027] Figure 6 is the right view external view of the utility model Figure 1 ;

[0028] Figure 7 is the plan view external view of the utility model Figure 1 ;

[0029] Figure 8 is the bottom view external view of the utility model Figure 1 .

[0030] The figure mark is explained as follows:

[0031] 1, absorption tower body;101, check passage;102, sealing door;2, slurry spray subassembly;201, valve;202, slurry liquid inlet pipe;203, pipe joint one;204, spray head;205, shunt pipe;206, liquid collecting tank;207, liquid inlet connection pipe;208, liquid conveying hose;3, hoisting fixed subassembly;301, connecting seat;302, hanging seat;303, telescopic rod body;304, locking screw;305, connecting sleeve;4, internal cleaning subassembly;401, valve two;402, pipe joint two;403, airflow inlet pipe;404, gas supply pipe;405, gas conveying hose;406, air inlet connection pipe;407, gas supply pump body. Specific implementation

[0032] In order to make the purpose, technical scheme and advantage of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other implementation manners obtained by the ordinary skill in the art without making the creative labor belong to the scope of the utility model.

[0033] See Figures 1-8The utility model provides a kind of limestone desulfurization device, including absorption tower body 1, the front of absorption tower body 1 is equipped with inspection passage 101, and the front end surface of inspection passage 101 is equipped with the sealing door 102 that can be opened and closed by hinge, absorption tower body 1 inside is equipped with slurry spraying assembly 2 in the position height corresponding to inspection passage 101, to atomize and spray limestone slurry by slurry spraying assembly 2, specifically, slurry spraying assembly 2 includes liquid collecting tank 206 and slurry liquid inlet pipe 202, liquid collecting tank 206 is placed in absorption tower body 1 inside and is located in the position height corresponding to inspection passage 101, liquid collecting tank 206 is hollow box and the bottom surface is uniformly fixed and communicated with multiple shunt pipes 205, the bottom end of shunt pipe 205 is coaxially equipped with the spray head 204 for atomizing and spraying limestone slurry, internal cleaning assembly 4 is installed on the side of liquid collecting tank 206, another side of liquid collecting tank 206 is fixed and communicated with liquid inlet connector pipe 207, and liquid inlet connector pipe 207 is fixed and communicated with liquid delivery hose 208 by pipe joint one 203, slurry liquid inlet pipe 202 is inserted into inside from absorption tower body 1 outside along transverse, while the inner end of slurry liquid inlet pipe 202 is fixed and communicated with the outer end of liquid delivery hose 208 by pipe joint one 203, the purpose of this arrangement is that after limestone slurry is input into liquid collecting tank 206 by slurry liquid inlet pipe 202 through liquid inlet connector pipe 207, limestone slurry can be atomized and sprayed by the spray head 204 at the bottom end of multiple shunt pipes 205, and the spraying mode of limestone slurry is uniform and easy to realize.

[0034] Referring to Figures 1-3 As shown, slurry spraying assembly 2 is suspended and fixed in absorption tower body 1 inside by hoisting and fixing assembly 3 installed and arranged at both sides positions above slurry spraying assembly 2 inside absorption tower body 1, specifically, hoisting and fixing assembly 3 includes hanger seat 302 and telescopic rod body 303, hanger seat 302 is horizontally fixed by connecting seat 301 at both sides positions above liquid collecting tank 206 inside absorption tower body 1, and telescopic rod body 303 is vertically fixed at the bottom surface of hanger seat 302 at both sides positions above liquid collecting tank 206, and the bottom end of telescopic rod body 303 is fixed on the top surface of liquid collecting tank 206 by connecting sleeve 305, so that the working position height of slurry spraying assembly 2 can be adjusted by telescopic adjustment of telescopic rod body 303 and locking by tightening locking screw 304 after the sealing door 102 is opened.

[0035] Referring to Figures 1-3As shown, the slurry spraying assembly 2 is provided with an internal cleaning assembly 4 for cleaning the limestone slurry retained in the internal part of the slurry spraying assembly 2, and part of the internal cleaning assembly 4 is located outside the absorption tower body 1. Specifically, the internal cleaning assembly 4 comprises an air inlet pipe 406, an air flow inlet pipe 403 and an air supply pump body 407. The air inlet pipe 406 is fixedly connected to the liquid collection tank 206 away from the liquid inlet pipe 207, and the air inlet pipe 406 is fixedly connected to the air conveying hose 405 through the pipe joint two 402. The air flow inlet pipe 403 penetrates into the internal part of the absorption tower body 1 from the outside of the absorption tower body 1 in a transverse direction, and the inner end of the air flow inlet pipe 403 is fixedly connected to the outer end of the air conveying hose 405 through the pipe joint two 402. The air supply pump body 407 is located outside the absorption tower body 1, and the air outlet of the air supply pump body 407 is fixedly connected to the air supply pipe 404, and the other end of the air supply pipe 404 is fixedly connected to the outer end of the air flow inlet pipe 403 through the pipe joint two 402. In this way, when the feeding is interrupted, the air flow inlet pipe 406 of the air supply pump body 407 of the internal cleaning assembly 4 can blow out the limestone slurry retained in the liquid collection tank 206 and the flow dividing pipe 205 through the spray head 204, so as to realize the cleaning of the internal part of the slurry spraying assembly 2.

[0036] Referring to Figures 1-3 As shown, the slurry spraying assembly 2, the hoisting and fixing assembly 3 and the internal cleaning assembly 4 are respectively optimized as follows. Specifically, the outer end of the slurry inlet pipe 202 is coaxially provided with a pipe joint one 203, and the part of the slurry inlet pipe 202 extending out of the absorption tower body 1 is provided with a valve one 201 for controlling the opening and closing. In this way, firstly, the slurry inlet pipe 202 can be connected to the limestone slurry supply pipeline outside through the pipe joint one 203, and the opening and closing of the slurry inlet pipe 202 can be controlled through the valve one 201. Meanwhile, the pipe joint one 203 can be a quick connector, the spray head 204 can be an atomizing spray head 204, and the liquid conveying hose 208 can be a metal hose. In this way, firstly, the pipeline connection through the pipe joint one 203 can be quickly assembled and disassembled, and the spray head 204 has good spraying effect. Preferably, the length of the liquid conveying hose 208 is greater than the distance between the slurry inlet pipe 202 and the liquid inlet pipe 207, so as to ensure that the liquid collection tank 206 can be smoothly adjusted in height.

[0037] Specifically, the telescopic rod body 303 is a double-section telescopic rod with a locking screw 304, and the locking screw 304 faces the inspection channel 101. In this way, the telescopic rod body 303 can be adjusted in length by pulling and stretching, and the telescopic rod body 303 can be locked after adjustment by tightening the locking screw 304. Moreover, the locking screw 304 can be easily operated through the inspection channel 101.

[0038] And specific to the internal cleaning assembly 4, the part of the gas flow into the pipe 403 extending out of the absorption tower body 1 is provided with a valve two 401 for controlling opening and closing, the pipe joint two 402 is a quick connector, and the gas conveying hose 405 is a metal hose. The advantages of this arrangement are: first, the opening and closing of the gas flow into the pipe 403 can be controlled through the valve two 401, which facilitates the regulation of the enabled and disabled states of the internal cleaning assembly 4, and facilitates quick assembly and disassembly when connecting the pipeline through the pipe joint two 402. In addition, the length of the gas conveying hose 405 is preferably greater than the distance between the gas flow into the pipe 403 and the gas inlet connector 406 by a certain length, so as to ensure that the liquid collecting tank 206 can be smoothly adjusted in height.

[0039] With the above structure, during the use of the absorption tower body 1 for desulfurization of limestone slurry, the slurry spraying assembly 2 can be hoisted and fixed in the absorption tower body 1 by the hoisting and fixing assembly 3 on both sides. The lug 302 of the hoisting and fixing assembly 3 is combined and connected with the slurry spraying assembly 2 through the telescopic rod body 303. Then, after opening the sealing door 102, the locking screw 304 is loosened first, and then the working position height of the slurry spraying assembly 2 is adjusted by vertically telescoping the telescopic rod body 303 and locking again by tightening the locking screw 304, which facilitates the adjustment of the slurry spraying assembly 2 to the appropriate working position height during later debugging. During the use of the slurry spraying assembly 2, the bottom of the liquid collecting tank 206 is uniformly fixed and communicated with a plurality of shunt pipes 205, and the bottom of the shunt pipe 205 is coaxially installed with a spray head 204. Then, after the external slurry supply pipeline is fixedly communicated with the slurry inlet pipe 202 through the pipe joint one 203, the limestone slurry is input into the liquid collecting tank 206 through the slurry inlet pipe 202, and the limestone slurry is atomized and sprayed through the spray head 204 at the bottom of the shunt pipe 205. The spraying mode of the limestone slurry is uniform and easy to realize, which is conducive to improving the limestone desulfurization effect. When the absorption tower body 1 is maintained and repaired later, the valve one 201 is closed to interrupt the supply of limestone slurry, so as to ensure the smooth progress of the maintenance and repair work. Since the internal cleaning assembly 4 is installed on one side of the slurry spraying assembly 2, when the supply is interrupted, the gas flow into the liquid collecting tank 206 of the slurry spraying assembly 2 through the gas inlet connector 406, so as to blow out and clean the limestone slurry remaining in the liquid collecting tank 206 and the shunt pipe 205 through the spray head 204, which realizes the cleaning of the inside of the slurry spraying assembly 2 and avoids the dry and clogged limestone slurry inside the slurry spraying assembly 2.

[0040] The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A limestone desulfurization device comprising an absorption tower body (1), characterized in that: The front part of the absorption tower body (1) is provided with an inspection channel (101), and the front end face of the inspection channel (101) is provided with a sealable sealing door (102) through a hinge; The inside of the absorption tower body (1) is provided with a slurry spraying assembly (2) at a position corresponding to the inspection channel (101), so that limestone slurry is atomized and sprayed through the slurry spraying assembly (2); The inside of the absorption tower body (1) is provided with a hoisting fixing assembly (3) at both sides above the slurry spraying assembly (2), the bottom end of the hoisting fixing assembly (3) is fixed to the top of the slurry spraying assembly (2), so that the slurry spraying assembly (2) is suspended and fixed in the inside of the absorption tower body (1) through the hoisting fixing assembly (3); The slurry spraying assembly (2) is provided with an internal cleaning assembly (4) at one side, which is used to clean the limestone slurry stored inside, and part of the internal cleaning assembly (4) is located outside the absorption tower body (1).

2. The limestone desulphurization device as claimed in claim 1, wherein: The slurry spraying assembly (2) comprises a liquid collecting tank (206) and a slurry inlet pipe (202), the liquid collecting tank (206) is horizontally placed in the inside of the absorption tower body (1) and located at a position corresponding to the inspection channel (101), the liquid collecting tank (206) is a hollow tank body, the bottom surface of the liquid collecting tank (206) is uniformly and fixedly connected with a plurality of shunt pipes (205), the bottom end of each shunt pipe (205) is coaxially provided with a spray head (204) used to atomize and spray limestone slurry, one side of the liquid collecting tank (206) is provided with the internal cleaning assembly (4), the other side of the liquid collecting tank (206) is fixedly connected with an inlet connecting pipe (207), the inlet connecting pipe (207) is fixedly connected with a liquid conveying hose (208) through a pipe joint (203), the slurry inlet pipe (202) penetrates into the inside of the absorption tower body (1) from the outside of the absorption tower body (1) in a transverse direction, and the inner end of the slurry inlet pipe (202) is fixedly connected with the outer end of the liquid conveying hose (208) through the pipe joint (203).

3. The limestone desulphurization device as claimed in claim 2, wherein: The outer end of the slurry inlet pipe (202) is coaxially provided with the pipe joint (203), and the part of the slurry inlet pipe (202) extending out of the absorption tower body (1) is provided with a valve (201) used to control opening and closing.

4. The limestone desulphurization device as claimed in claim 3, wherein: The pipe joint (203) is a quick connector; the spray head (204) is an atomizing spray head (204); and the liquid conveying hose (208) is a metal hose.

5. The limestone desulphurization device according to any one of claims 2-4, characterized in that: The hoisting fixing assembly (3) comprises a hoisting seat (302) and a telescopic rod body (303), the hoisting seat (302) is horizontally fixed to the inside of the absorption tower body (1) at both sides above the liquid collecting tank (206) through a connecting seat (301), the bottom surface of the hoisting seat (302) at both sides is vertically fixed with the telescopic rod body (303) at a position above the liquid collecting tank (206), and the bottom end of the telescopic rod body (303) is fixed to the top surface of the liquid collecting tank (206) through a connecting sleeve (305).

6. The limestone desulphurization device as claimed in claim 5, wherein: The telescopic rod body (303) is a two-section telescopic rod with locking screws (304) facing the inspection channel (101).

7. The limestone desulphurization device according to any one of claims 2, 3, 4 and 6, characterized in that: The internal cleaning assembly (4) comprises an air inlet pipe (406), an air flow inlet pipe (403) and an air supply pump body (407), one side of the liquid collecting tank (206) away from the liquid inlet pipe (207) is fixedly connected with the air inlet pipe (406), the air inlet pipe (406) is fixedly connected with an air supply hose (405) through a pipe joint two (402), the air flow inlet pipe (403) penetrates into the internal part from the outside of the absorption tower body (1) in a transverse direction, and an inner end of the air flow inlet pipe (403) is fixedly connected with an outer end of the air supply hose (405) through the pipe joint two (402), the air supply pump body (407) is located outside the absorption tower body (1), an air outlet on the top of the air supply pump body (407) is fixedly connected with an air supply pipe (404), and the other end of the air supply pipe (404) is fixedly connected with the outer end of the air flow inlet pipe (403) through the pipe joint two (402).

8. A limestone desulphurization device as claimed in claim 7, characterized in that: A valve two (401) for controlling opening and closing is mounted on the part of the air flow inlet pipe (403) extending out of the absorption tower body (1); the pipe joint two (402) is a quick connector; and the air supply hose (405) is a metal hose.