Waste gas absorption tower

Abstract

The utility model discloses a waste gas absorption tower and relates to the technical field of waste gas treatment. The device comprises an absorption tower body and a water storage tank, one side of the top of the water storage tank is of an open structure, the absorption tower body is communicated with the other side of the top of the water storage tank, and an exhaust pipe is communicated above one side of the absorption tower body; the mounting cylinder is fixedly embedded in the middle of the absorption tower body, an activated carbon column is arranged in the mounting cylinder, one side of the bottom of the mounting cylinder outwards communicates with an air inlet pipe penetrating through the outer wall of the absorption tower body, the middle of the top of the mounting cylinder upwards communicates with a fixed pipe, and a triangular bucket cover is fixedly arranged at the top of the fixed pipe; and the maximum outer diameter of the triangular bucket cover is smaller than the inner diameter of the mounting cylinder. The activated carbon column is arranged in the mounting cylinder, the fixing pipe and the triangular bucket cover are arranged, the triangular bucket cover forms a protective cover, spraying liquid is prevented from making direct contact with the activated carbon column, the activated carbon column is effectively prevented from being wetted, the adsorption effect is effectively prevented from being affected, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment equipment, in particular to a waste gas absorption tower. Background Art

[0002] In the process of solid waste treatment, especially in the stage of solid waste drying and dissolving, a large amount of waste gas containing hydrochloric acid will be generated. If these waste gases are discharged directly without treatment, they will cause serious pollution to the environment and are highly corrosive to surrounding equipment, threatening the health of employees. Therefore, an efficient waste gas absorption tower is needed to purify these waste gases.

[0003] The Chinese utility model patent with the announcement number CN219186407U discloses a waste gas absorption tower including a tower body, wherein an air inlet pipe is arranged on the outer wall of the tower body near the bottom, and an air outlet pipe is arranged on the outer wall of the tower body near the top, and the waste gas is input into the tower body from the air inlet pipe, and the purified waste gas is discharged from the air outlet pipe, ..., an absorption liquid inlet pipe is arranged in the middle of the top of the tower body, which is used to introduce absorption liquid, and the harmful substances in the waste gas are absorbed by the absorption liquid to avoid direct discharge to the outside; the bottom end of the absorption liquid inlet pipe passes through the top of the tower body to a position near the top of the baffle, and the bottom end of the absorption liquid inlet pipe is a closed structure, and six L-shaped spray pipes arranged in a circular array are arranged on the outer wall of the absorption liquid inlet pipe near the bottom, and a nozzle is arranged at the bottom end of each of the L-shaped spray pipes, and the absorption liquid inlet pipe introduces the absorption liquid into the six L-shaped spray pipes and sprays it out from the six nozzles.

[0004] The above-mentioned device absorbs particulate matter in the exhaust gas through activated carbon particles arranged inside the frame. Although it can remove some harmful substances, during the spraying process, the activated carbon particles will absorb moisture, resulting in its inability to continuously and effectively absorb exhaust gas particles, thereby reducing the overall exhaust gas treatment efficiency. Therefore, we propose an exhaust gas absorption to solve the above problem. Summary of the invention

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] A waste gas absorption tower, comprising:

[0007] An absorption tower body and a water storage tank, wherein one side of the top of the water storage tank is an open structure, and the absorption tower body is connected to the other side of the top thereof, and an exhaust pipe is connected to the top of one side of the absorption tower body;

[0008] An installation tube is fixedly embedded in the middle of the absorption tower body, an activated carbon column is arranged inside the installation tube, one side of the bottom of the installation tube is connected to the outside with an air inlet pipe that penetrates the outer wall of the absorption tower body, the middle of the top of the installation tube is connected upward with a fixed pipe, a triangular bucket cover is fixed on the top of the fixed pipe, the maximum outer diameter of the triangular bucket cover is smaller than the inner diameter of the installation tube, and the fixed pipe body is connected to an air outlet pipe near the triangular bucket cover;

[0009] The spray assembly is arranged in the water storage tank and is used for spraying the calcium hydroxide solution to the middle of the top of the triangular bucket cover.

[0010] Furthermore, the spray assembly includes a water pump installed inside the water storage tank, the water outlet end of the water pump is connected to a guide pipe, the other end of the guide pipe passes through the top wall of the absorption tower body and is connected to a nozzle, and the nozzle is located directly below the triangular bucket cover.

[0011] Furthermore, the mounting tube is arranged to be inclined, and the air inlet pipe is connected to the bottom of a lower side thereof.

[0012] Furthermore, the higher end of the installation cylinder is an open structure and is threadedly connected with a cylinder cover.

[0013] Furthermore, a Z-shaped plate is fixedly provided on the inner bottom wall of the installation tube, and the Z-shaped plate is an elastic plastic plate.

[0014] Furthermore, a baffle is fixedly provided on the surface of the fixed pipe below the air outlet pipe.

[0015] Furthermore, a sewage pipe is connected to the bottom of one side of the water storage tank, and a valve is provided at the pipe mouth of the sewage pipe.

[0016] Furthermore, a guide plate is obliquely arranged inside the water storage tank below the absorption tower body.

[0017] The beneficial effects of the utility model are as follows:

[0018] The utility model places the activated carbon column inside the installation cylinder, and arranges a fixing pipe and a triangular bucket cover. The triangular bucket cover forms a protective cover to prevent the spray liquid from directly contacting the activated carbon column, effectively avoiding the activated carbon column from being wetted and affecting the adsorption effect, and has high practicality.

[0019] The utility model works based on the principle of combining physical filtration with chemical conversion. First, the powerful adsorption capacity of activated carbon is used to remove suspended particles in the exhaust gas. Then, calcium hydroxide solution is used to react with the remaining volatile components (such as hydrogen chloride) to generate new substances that are easy to handle or harmless, thereby achieving the purpose of completely removing pollutants. The device adopts an integrated design, which saves space and is easy to maintain and manage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a top view schematic diagram of the utility model;

[0022] Figure 3 This utility model Figure 2 Schematic cross-sectional view in the AA direction;

[0023] Figure 4 This utility model Figure 2 Schematic diagram of the cross-section along the BB direction.

[0024] Figure numerals: 1. Absorption tower body; 101. Exhaust pipe; 2. Water storage tank; 201. Drain pipe; 3. Mounting cylinder; 301. Cylinder cover; 302. Z-shaped plate; 4. Activated carbon column; 5. Inlet pipe; 6. Fixed pipe; 601. Baffle plate; 7. Triangular bucket cover; 8. Exhaust pipe; 9. Spray assembly; 901. Water pump; 902. Guide pipe; 903. Nozzle; 10. Guide plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0026] The present application provides a waste gas absorption tower, which is mainly used to solve the problem in the prior art that activated carbon particles absorb moisture during the spraying process, resulting in the inability to continuously and effectively absorb waste gas particles, thereby reducing the overall waste gas treatment efficiency, and provides the following technical solutions. Figure 1-Figure 4 Make a detailed description:

[0027] A waste gas absorption tower, comprising:

[0028] An absorption tower body 1 and a water storage tank 2, wherein one side of the top of the water storage tank 2 is an open structure, and the absorption tower body 1 is connected to the other side of the top thereof, and an exhaust pipe 101 is connected to the top of one side of the absorption tower body 1;

[0029] The installation tube 3 is fixedly embedded in the middle of the absorption tower body 1, and an activated carbon column 4 is arranged inside the installation tube 3. One side of the bottom of the installation tube 3 is connected to the outside with an air inlet pipe 5 that penetrates the outer wall of the absorption tower body 1. The middle of the top of the installation tube 3 is connected upward with a fixed tube 6. The top of the fixed tube 6 is fixedly provided with a triangular bucket cover 7. The maximum outer diameter of the triangular bucket cover 7 is smaller than the inner diameter of the installation tube 3. The fixed tube 6 is connected to an air outlet pipe 8 near the triangular bucket cover 7.

[0030] The spray assembly 9 is arranged in the water storage tank 2 and is used for spraying the calcium hydroxide solution to the middle of the top of the triangular bucket cover 7.

[0031] Workflow Description

[0032] The first step is to introduce waste gas: the waste gas containing hydrochloric acid enters the interior of the installation cylinder 3 through the air inlet pipe 5;

[0033] The second step is particle absorption: when the particles in the exhaust gas pass through the installation cylinder 3, they are adsorbed and removed by the activated carbon column 4 in the installation cylinder 3;

[0034] The third step is volatile gas emission: the gas (mainly volatile hydrochloric acid gas) after adsorption treatment by the activated carbon column 4 moves upward through the fixed pipe 6 and is discharged from the gas outlet pipe 8. At the same time, the spray component 9 sprays the calcium hydroxide solution in the water storage tank 2 to the top of the triangular bucket cover 7. The sprayed calcium hydroxide solution forms a water curtain along the outer wall of the triangular bucket cover 7, contacts with the discharged volatile hydrochloric acid gas and undergoes a neutralization reaction to generate harmless substances;

[0035] Step 4: Purify gas and discharge it: the gas purified through the above process is finally safely discharged to the outside through the exhaust pipe 101.

[0036] The exhaust gas absorption tower is constructed by placing an activated carbon column 4 inside a mounting tube 3, and arranging a fixing tube 6 and a triangular bucket cover 7. The triangular bucket cover 7 forms a protective cover to prevent the spray liquid from directly contacting the activated carbon column 4, effectively avoiding it from being wetted and affecting the adsorption effect. Its working principle is based on the principle of combining physical filtration with chemical conversion. First, the powerful adsorption capacity of activated carbon is used to remove suspended particles in the exhaust gas; then, calcium hydroxide solution is used to react with the remaining volatile components (such as hydrogen chloride) to generate new substances that are easy to handle or harmless, thereby achieving the purpose of completely removing pollutants. The device adopts an integrated design, which saves space and is easy to maintain and manage.

[0037] like Figure 4 As shown, in some embodiments, the spray assembly 9 includes a water pump 901 installed inside the water storage tank 2, and the water outlet end of the water pump 901 is connected to a guide pipe 902. The other end of the guide pipe 902 passes through the top wall of the absorption tower body 1 and is connected to a nozzle 903. The nozzle 903 is located directly below the triangular bucket cover 7. More specifically, when the water pump 901 is working, the absorption liquid (such as calcium hydroxide solution) is drawn out from the water storage tank 2 and transported to the nozzle 903 through the guide pipe 902. The nozzle 903 sprays the absorption liquid evenly on the top of the triangular bucket cover 7. Under the action of the absorption liquid's own gravity, it slides downward along the outer wall of the triangular bucket cover 7, and finally forms a water curtain at the lower edge of the triangular bucket cover 7. The water curtain contacts the volatile hydrochloric acid gas discharged from the fixed pipe 6, and a chemical reaction occurs, thereby removing harmful substances in the gas.

[0038] like Figure 3As shown, in some embodiments, the mounting cylinder 3 is tilted, and the air inlet pipe 5 is connected to the bottom of its lower side. More specifically, the tilted mounting cylinder 3 allows the exhaust gas to naturally rise along the cylinder wall after entering. This flow pattern helps the exhaust gas to fully contact the activated carbon column 4, thereby more effectively removing particulate matter in the exhaust gas. The air inlet pipe 5 is located at the bottom of the lower side, which can ensure that the exhaust gas enters from the lower part of the absorption tower, so that the exhaust gas will pass through more activated carbon columns 4 during the rising process, which increases the chance and time of adsorption and improves the purification effect.

[0039] like Figure 3 As shown, in some embodiments, the higher end of the mounting cylinder 3 is an open structure, and is threadedly connected with a cylinder cover 301. More specifically, the open structure allows the staff to directly contact the activated carbon column 4 from the upper part of the absorption tower body 1, and can easily remove the old activated carbon column 4 or install a new activated carbon column 4 without disassembling other components, which greatly simplifies the maintenance process and improves work efficiency. The cylinder cover 301 is tightly connected to the mounting cylinder 3 through threads, ensuring that there will be no gas leakage during normal operation. When the activated carbon column 4 needs to be maintained, it is only necessary to unscrew the cylinder cover 301, which is easy and quick to operate. In addition, the threaded connection also has good sealing properties, which can prevent the exhaust gas from escaping without treatment.

[0040] like Figure 3 As shown, in some embodiments, the inner bottom wall of the installation tube 3 is fixedly provided with a Z-shaped plate 302, and the Z-shaped plate 302 is an elastic plastic plate. More specifically, on the one hand, the Z-shaped plate 302, as an elastic plastic plate, can play a buffering role when installing the activated carbon column 4. When the activated carbon column 4 is placed in the installation tube 3, the elasticity of the Z-shaped plate 302 can absorb part of the impact force, preventing the activated carbon column 4 from being damaged by direct impact, thereby extending the service life of the activated carbon column 4. On the other hand, when the activated carbon column 4 needs to be replaced or maintained, the staff can first press the activated carbon column 4, and use the elastic force of the Z-shaped plate 302 to eject one end of the activated carbon column 4 from the installation tube 3. This method greatly simplifies the process of removing the activated carbon column 4, improves work efficiency, and also reduces damage to the activated carbon column 4.

[0041] like Figure 3 As shown, in some embodiments, a baffle plate 601 is fixedly provided on the surface of the fixed tube 6 below the outlet pipe 8. More specifically, the baffle plate 601 prevents the hydrochloric acid gas from flowing directly downward from the outlet pipe 8, so as to better promote its chemical reaction with the calcium hydroxide solution.

[0042] like Figure 3As shown, in some embodiments, a sewage pipe 201 is connected to the bottom of one side of the water storage tank 2, and a valve is provided at the pipe mouth of the sewage pipe 201. More specifically, by providing the sewage pipe 201, it is convenient for the staff to discharge sewage to the outside, and the valve can control the opening and closing of the sewage pipe 201.

[0043] like Figure 4 As shown, in some embodiments, a guide plate 10 is obliquely arranged inside the water storage tank 2 below the absorption tower body 1. More specifically, the oblique arrangement of the guide plate 10 allows the sediment in the wastewater to naturally slide along the inclined surface to the open side of the water storage tank 2. The sediment is concentrated on the open side of the water storage tank 2, and the staff can more easily reach this area during cleaning and use tools or manually to remove the sediment. This design reduces the difficulty and time of cleaning and improves work efficiency.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waste gas absorption tower, characterized in that: include: An absorption tower body (1) and a water storage tank (2), wherein one side of the top of the water storage tank (2) is an open structure, and the absorption tower body (1) is connected to the other side of the top thereof, and an exhaust pipe (101) is connected to the top of one side of the absorption tower body (1); A mounting tube (3) is fixedly embedded in the middle of the absorption tower body (1), an activated carbon column (4) is arranged inside the mounting tube (3), one side of the bottom of the mounting tube (3) is connected to an air inlet pipe (5) penetrating the outer wall of the absorption tower body (1), the middle of the top of the mounting tube (3) is connected to a fixed tube (6) upward, a triangular bucket cover (7) is fixedly arranged on the top of the fixed tube (6), the maximum outer diameter of the triangular bucket cover (7) is smaller than the inner diameter of the mounting tube (3), and the fixed tube (6) is connected to an air outlet pipe (8) at a position close to the triangular bucket cover (7); A spray assembly (9) is arranged in the water storage tank (2) and is used to spray a calcium hydroxide solution onto the middle of the top of the triangular bucket cover (7).

2. A waste gas absorption tower according to claim 1, characterized in that: The spray assembly (9) comprises a water pump (901) installed inside the water storage tank (2); the water outlet end of the water pump (901) is connected to a flow guide pipe (902); the other end of the flow guide pipe (902) passes through the top wall of the absorption tower body (1) and is connected to a spray head (903); the spray head (903) is located directly below the triangular bucket cover (7).

3. The exhaust gas absorption tower according to claim 1, characterized in that: The mounting tube (3) is arranged in an inclined manner, and the air intake pipe (5) is connected to the bottom of a lower side thereof.

4. The exhaust gas absorption tower according to claim 1, characterized in that: The higher end of the installation cylinder (3) is an open structure and is threadedly connected to a cylinder cover (301).

5. The exhaust gas absorption tower according to claim 1, characterized in that: A Z-shaped plate (302) is fixedly provided on the inner bottom wall of the installation cylinder (3), and the Z-shaped plate (302) is an elastic plastic plate.

6. The exhaust gas absorption tower according to claim 1, characterized in that: A baffle plate (601) is fixedly provided on the surface of the fixed pipe (6) below the air outlet pipe (8).

7. The exhaust gas absorption tower according to claim 1, characterized in that: The bottom of one side of the water storage tank (2) is connected to a sewage pipe (201), and a valve is provided at the pipe mouth of the sewage pipe (201).

8. The exhaust gas absorption tower according to claim 1, characterized in that: A guide plate (10) is obliquely arranged inside the water storage tank (2) below the absorption tower body (1).

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