Acid gas neutralizing tower

Abstract

The utility model discloses an acid gas neutralizing tower which comprises a neutralizing tower body and retaining nets arranged in the upper side and the lower side of the center of the neutralizing tower body, acid gas neutralizing fillers are arranged at the upper ends of the retaining nets, and spraying pipes are arranged on the upper sides of the acid gas neutralizing fillers. A plurality of novel acid gas uniform distribution devices are additionally arranged in the acid gas neutralization tower, and the acid gas uniform distribution devices can play a role in uniformly distributing the acid gas when the gas flows in the neutralization tower body, so that when the acid gas is conveyed upwards from the interior of the lower side of the neutralization tower body, the acid gas can be uniformly distributed; the acid gas can certainly pass through the plurality of acid gas uniform distribution devices, and the acid gas uniform distribution devices can enable the passing acid gas to be uniformly and upwards diffused and conveyed, so that neutralization liquid sprayed out of the plurality of atomization nozzles can be more fully mixed and contacted with the acid gas; meanwhile, the acid gas can uniformly enter the acid gas neutralization filler, so that the mixing effect between the acid gas neutralization filler and the acid gas neutralization liquid and the acid gas is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to environmental protection, and particularly relates to an acid gas neutralization tower. Background Technique

[0002] An acid gas neutralization tower is a device used to treat gases containing acidic components and is widely used in the industrial and environmental protection fields. Its basic principle is to introduce the acidic gas into the bottom of the tower body, and let the gas pass through the acid gas neutralization filler and the spray pipe layer by layer inside the tower body, and contact and react with the circulating acid gas neutralization liquid, so as to neutralize the acidic components in the gas. The neutralized gas is further purified through the dehumidification filler at the top and finally meets the environmental protection discharge standards. This device can not only effectively reduce the content of acidic substances in the emissions, but also ensure the efficiency and stability of the treatment process.

[0003] However, when the acid gas neutralization tower neutralizes acid gas, it is necessary to continuously transport the acid gas into the neutralization tower, and then the acid gas will be transported upward inside the bottom end of the tower body. During the transportation process, the neutralization filler and the neutralization liquid inside the tower body are mixed and contacted with the acid gas, so as to achieve the purpose of neutralizing the acid gas. However, during the upward transportation of the acid gas inside the tower body, although the acid gas will diffuse upward through the gas characteristics, its diffusion effect is limited. Therefore, when the acid gas passes through the neutralization filler and the neutralization liquid, the acid gas cannot be completely mixed with the neutralization filler and the neutralization liquid, so the neutralization effect on the acid gas will be weakened, resulting in the gas not meeting the emission requirements after final neutralization. Content of the Utility Model

[0004] The purpose of the utility model is to provide an acid gas neutralization tower to solve the problem that during the upward transportation of the acid gas inside the tower body in the above-mentioned background technique, although the acid gas will diffuse upward through the gas characteristics, its diffusion effect is limited. Therefore, when the acid gas passes through the neutralization filler and the neutralization liquid, the acid gas cannot be completely mixed with the neutralization filler and the neutralization liquid, so the neutralization effect on the acid gas will be weakened.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an acid gas neutralization tower, including a neutralization tower body and retention nets arranged inside the upper and lower sides at the center of the neutralization tower body. Acid gas neutralization fillers are arranged at the upper ends of multiple retention nets, spray pipes are arranged above multiple acid gas neutralization fillers, a plurality of atomizing nozzles are equidistantly arranged at the bottom of the spray pipes, and a plurality of acid gas uniform distribution devices are arranged inside the neutralization tower body;

[0006] The acid gas uniform distribution device includes a fixed cylinder, a uniform distribution plate and an equalizing mesh. The outer wall of the fixed cylinder is attached to the inner wall of the neutralization tower body. The fixed cylinder and the neutralization tower body are fixedly connected by screws. A uniform distribution plate is fixedly installed inside the center of the fixed cylinder, and an equalizing mesh is fixedly installed inside the top end of the fixed cylinder. The uniform distribution plate and the equalizing mesh are parallel to each other.

[0007] Preferably, the acid gas uniform distribution device further includes ventilation holes and equalizing guiding heads. A plurality of ventilation holes are equidistantly arranged inside the uniform distribution plate, and equalizing guiding heads are arranged between the bottoms of adjacent ventilation holes. The equalizing guiding heads are fixed on the outer wall of the bottom end of the uniform distribution plate.

[0008] Preferably, the equalizing guiding head is a hemispherical guiding head. The distance between the equalizing guiding heads is greater than the distance between adjacent two ventilation holes. The outer walls of the equalizing guiding heads and the uniform distribution plate are smooth and free of burrs.

[0009] Preferably, an air inlet is arranged on the lower side of the center of the left end of the neutralization tower body, and an air outlet is arranged at the top of the neutralization tower body. The air inlet and the air outlet are both connected to the external air inlet pipe and the air outlet pipe through flanges and screws.

[0010] Preferably, a dehumidifying filler is arranged inside the top end of the neutralization tower body. The dehumidifying filler can adsorb moisture in the gas. A liquid storage tank is arranged at the right end of the bottom of the neutralization tower body, and an acid gas neutralizing liquid is stored in the liquid storage tank.

[0011] Preferably, a circulating pump is arranged on the top of the liquid storage tank. The right ends of a plurality of spray pipes are connected to a liquid delivery pipe. The top end of the liquid delivery pipe is sealed, and the bottom end of the liquid delivery pipe is connected to the liquid outlet of the circulating pump.

[0012] Preferably, a waste discharge port is arranged at the front end of the bottom of the neutralization tower body, and a plurality of inspection and maintenance holes are arranged on the upper side of the center of the front end of the neutralization tower body. Sealing covers are fixed at the front ends of the waste discharge port and the plurality of inspection and maintenance holes.

[0013] Compared with the prior art, the present utility model provides an acid gas neutralization tower, which has the following beneficial effects:

[0014] The utility model adds a plurality of novel acid gas uniform distribution devices inside the acid gas neutralization tower. The acid gas uniform distribution device can make the gas play a role in uniformly distributing the acid gas when flowing inside the neutralization tower body. When the acid gas is transported upward from the lower side inside the neutralization tower body, the acid gas will surely pass through a plurality of acid gas uniform distribution devices, and the acid gas uniform distribution device can make the passing acid gas uniformly diffuse and transport upward. In this way, it can not only make the neutralizing liquid sprayed from a plurality of atomizing nozzles more fully mixed and contacted with the acid gas, but also make the acid gas uniformly enter the acid gas neutralization filler, so as to increase the mixing effect between the acid gas neutralization filler, the acid gas neutralizing liquid and the acid gas, thereby increasing the neutralization effect on the acid gas and avoiding the occurrence of incomplete acid gas neutralization. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the internal planar structure of an acid gas neutralization tower of the utility model.

[0016] Figure 2 It is a schematic diagram of the external planar structure of an acid gas neutralization tower of the utility model.

[0017] Figure 3 It is a schematic diagram of the front view cross-section structure of the acid gas uniform distribution device of the utility model.

[0018] In the figure: 1, liquid storage tank; 2, neutralization tower body; 3, air inlet; 4, acid gas uniform distribution device; 5, retention net; 6, acid gas neutralization filler; 7, spray pipe; 8, atomizing nozzle; 9, dehumidification filler; 10, air outlet; 11, infusion pipe; 12, circulation pump; 13, waste discharge port; 14, inspection and maintenance hole; 15, fixed cylinder; 16, uniform distribution plate; 17, ventilation hole; 18, equalization guiding head; 19, equalization net. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] The present utility model provides as Figures 1-3An acid gas neutralization tower shown in the figure includes a neutralization tower body 2 and a retention net 5 arranged inside the upper and lower sides at the center of the neutralization tower body 2. Acid gas neutralization fillers 6 are arranged at the upper ends of multiple retention nets 5. Spray pipes 7 are arranged above multiple acid gas neutralization fillers 6. Multiple atomizing nozzles 8 are arranged at equal intervals at the bottom of the spray pipe 7. An air inlet 3 is arranged at the lower side of the center of the left end of the neutralization tower body 2. An air outlet 10 is arranged at the top of the neutralization tower body 2. The air inlet 3 and the air outlet 10 are both connected to the external air inlet pipe and the air outlet pipe through flanges and screws. A dehumidification filler 9 is arranged inside the top end of the neutralization tower body 2. The dehumidification filler 9 can adsorb the moisture in the gas. A liquid storage tank 1 is arranged at the right end of the bottom of the neutralization tower body 2. An acid gas neutralization liquid is stored in the liquid storage tank 1. A circulating pump 12 is arranged at the top of the liquid storage tank 1. The right ends of multiple spray pipes 7 are connected to an infusion pipe 11. The top end of the infusion pipe 11 is sealed. The bottom end of the infusion pipe 11 is connected to the liquid outlet of the circulating pump 12. A waste discharge port 13 is arranged at the front end of the bottom of the neutralization tower body 2. Multiple inspection and maintenance holes 14 are arranged at the upper side of the center of the front end of the neutralization tower body 2. Sealing covers are fixed at the front ends of the waste discharge port 13 and multiple inspection and maintenance holes 14. When this acid gas neutralization tower is in use, first, connect and fix the acid gas supply pipe that needs to be neutralized to the air inlet 3, so that the acid gas supply pipe can continuously and normally transport the acid gas that needs to be neutralized to the inside of the bottom end of the neutralization tower body 2. At the same time, the air outlet 10 at the top of the neutralization tower body 2 needs to be connected to the external discharge pipe, so that the neutralized gas can be discharged through the discharge pipe. After the acid gas is continuously transported into the neutralization tower body 2, the acid gas will be transported from bottom to top inside the neutralization tower body 2, and the acid gas will successively pass through multiple acid gas neutralization fillers 6 and multiple spray pipes 7 inside the neutralization tower body 2. The circulating pump 12 will continuously suck the acid gas neutralization liquid and transport it to multiple spray pipes 7 through the infusion pipe 11. Multiple spray pipes 7 will evenly spray the acid gas neutralization liquid through the atomizing nozzles 8. Therefore, when the acid gas passes through the area of the acid gas neutralization liquid atomized by multiple acid gas neutralization fillers 6 and multiple spray pipes 7, the acid gas neutralization fillers 6 and the acid gas neutralization liquid will neutralize the passing acid gas. The neutralized gas will continue to be transported upward, and then the gas will pass through the dehumidification filler 9 inside the top end of the tower body. The dehumidification filler 9 will absorb the acid gas neutralization liquid in the gas, so that the situation that the finally discharged gas does not meet the emission standard due to mixing a large amount of acid gas neutralization liquid will not occur.

[0021] As Figure 1 and Figure 3As shown, multiple acid gas uniform distribution devices 4 are arranged inside the neutralization tower body 2. The acid gas uniform distribution device 4 includes a fixed cylinder 15, a uniform distribution plate 16, and an equalization mesh 19. The outer wall of the fixed cylinder 15 fits against the inner wall of the neutralization tower body 2, and the fixed cylinder 15 and the neutralization tower body 2 are fixedly connected by screws. A uniform distribution plate 16 is fixedly installed inside the center of the fixed cylinder 15, and an equalization mesh 19 is fixedly installed inside the top end of the fixed cylinder 15. The uniform distribution plate 16 and the equalization mesh 19 are parallel to each other. The acid gas uniform distribution device 4 further includes ventilation holes 17 and equalization guiding heads 18. A plurality of ventilation holes 17 are equidistantly arranged inside the uniform distribution plate 16, and an equalization guiding head 18 is arranged between the bottom ends of adjacent ventilation holes 17. The equalization guiding head 18 is fixed on the outer wall of the bottom end of the uniform distribution plate 16.

[0022] As Figure 1 and Figure 3 shown, the equalization guiding head 18 is a hemispherical guiding head. The distance between the equalization guiding heads 18 is greater than the distance between two adjacent ventilation holes 17. The outer walls of the equalization guiding head 18 and the uniform distribution plate 16 are smooth and free of burrs. When the acid gas is transported from bottom to top inside the neutralization tower body 2, the acid gas will pass through the acid gas uniform distribution device 4. First, the acid gas will pass through the uniform distribution plate 16 at the center of the fixed cylinder 15. Since the bottom end of the uniform distribution plate 16 is densely provided with equalization guiding heads 18, the equalization guiding heads 18 will diffuse and transport the acid gas outward and upward in a circular shape through their hemispherical structures, so that the acid gas will be transported to the through holes inside the uniform distribution plate 16, thus performing the first-stage uniform diffusion distribution on the acid gas. Then, the acid gas will pass through the equalization plate inside the top end of the fixed cylinder 15, and the equalization plate will perform the second-stage uniform diffusion distribution on the acid gas, so that the acid gas is uniformly diffused inside the neutralization tower body 2 after passing through the acid gas uniform distribution device 4. In this way, the uniformly diffused acid gas can smoothly enter the acid gas neutralization filler 6 and the area of the atomized sprayed acid gas neutralization liquid, so that the acid gas is uniformly mixed with the acid gas neutralization filler 6 and the acid gas neutralization liquid, thereby increasing the acid gas neutralization effect and efficiency.

[0023] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An acid gas neutralization tower, comprising a neutralization tower body (2) and a retention net (5) arranged inside the upper and lower sides at the center of the neutralization tower body (2). Acid gas neutralization fillers (6) are arranged at the upper ends of multiple said retention nets (5), spray pipes (7) are arranged above multiple said acid gas neutralization fillers (6), and a plurality of atomizing nozzles (8) are arranged at equal intervals at the bottom of the spray pipe (7), characterized in that: Inside the neutralization tower body (2), a plurality of acid gas uniform distribution devices (4) are provided; The acid gas uniform distribution device (4) includes a fixed cylinder (15), a uniform distribution plate (16) and a uniform division net (19). The outer wall of the fixed cylinder (15) is attached to the inner wall of the neutralization tower body (2). The fixed cylinder (15) and the neutralization tower body (2) are fixedly connected by screws. Inside the center of the fixed cylinder (15), a uniform distribution plate (16) is fixed. Inside the top end of the fixed cylinder (15), a uniform division net (19) is fixed. The uniform distribution plate (16) and the uniform division net (19) are parallel to each other.

2. The acid gas neutralization tower according to claim 1, characterized in that: The acid gas uniform distribution device (4) further includes ventilation holes (17) and uniform division guiding heads (18). A plurality of ventilation holes (17) are equidistantly arranged inside the uniform distribution plate (16), and uniform division guiding heads (18) are arranged between the bottom ends of adjacent ventilation holes (17). The uniform division guiding heads (18) are fixed on the outer wall of the bottom end of the uniform distribution plate (16).

3. The acid gas neutralization tower according to claim 2, wherein: The uniform division guiding heads (18) are hemispherical guiding heads. The distance between the uniform division guiding heads (18) is greater than the distance between adjacent two ventilation holes (17). The outer walls of the uniform division guiding heads (18) and the uniform distribution plate (16) are smooth and free of burrs.

4. The acid gas neutralization tower according to claim 1, characterized in that: Below the center of the left end of the neutralization tower body (2), an air inlet (3) is provided. At the top of the neutralization tower body (2), an air outlet (10) is provided. The air inlet (3) and the air outlet (10) are both connected to the external air inlet pipe and air outlet pipe through flanges and screws.

5. The acid gas neutralization tower according to claim 1, characterized in that: Inside the top end of the neutralization tower body (2), a dehumidifying filler (9) is provided. The dehumidifying filler (9) can adsorb the moisture in the gas. At the right end of the bottom of the neutralization tower body (2), a liquid storage tank (1) is provided. An acid gas neutralizing liquid is stored in the liquid storage tank (1).

6. The acid gas neutralization tower according to claim 5, characterized in that: At the top of the liquid storage tank (1), a circulation pump (12) is provided. The right ends of a plurality of spray pipes (7) are connected to an infusion pipe (11). The top end of the infusion pipe (11) is sealed. The bottom end of the infusion pipe (11) is connected to the liquid outlet of the circulation pump (12).

7. The acid gas neutralization tower according to claim 1, characterized in that: At the front end of the bottom of the neutralization tower body (2), a waste discharge port (13) is provided. Above the center of the front end of the neutralization tower body (2), a plurality of inspection and maintenance holes (14) are provided. Sealing covers are fixed at the front ends of the waste discharge port (13) and the plurality of inspection and maintenance holes (14).

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