Bubbling type acid mist washing tower

Abstract

The utility model provides a bubbling type acid mist washing tower which comprises a tower body, an air inlet pipeline and an aeration pipe, an alkaline solution is contained in the tower body to wash acid mist, the air inlet pipeline extends into the tower body from the outside to discharge the acid mist into the tower body, the aeration pipe is arranged at an outlet of the air inlet pipeline, and the acid mist enters the alkaline solution from the aeration pipe to react. According to the bubbling type acid mist washing tower disclosed by the utility model, due to the arrangement of the aeration pipe, acid mist can uniformly enter an alkaline solution to react, so that the treatment efficiency of the acid mist is effectively improved, and the problems of short gas-liquid contact time and low acid removal efficiency of the existing single-stage spray tower are solved; the porous plate and the filler are arranged, so that the gas-liquid contact area is further increased, the reaction efficiency of acid mist and an alkaline solution is improved, and the acid removal effect is enhanced; by arranging the spray heads and the multiple groups of supporting frames, acid mist is treated for multiple times, so that the acid removal efficiency is further improved, and meanwhile, the problem that an existing packed tower is easy to block is solved.

Description

Technical Field

[0001] This utility model relates to the field of acid mist treatment technology, and in particular to a bubbling acid mist scrubbing tower. Background Technology

[0002] Currently, most common acid mist scrubbing equipment uses single-stage spray towers or packed towers. Single-stage spray towers spray alkaline solutions into the acid mist through nozzles to achieve acid-base neutralization. However, this type of equipment has a short gas-liquid contact time, resulting in insufficient mixing of the acid mist and alkaline solution, leading to low acid removal efficiency. While packed towers increase the gas-liquid contact area through packing, they are prone to packing blockage when handling high-concentration acid mist, affecting the normal operation of the equipment. Utility Model Content

[0003] The purpose of this invention is to propose a bubbling acid mist scrubbing tower to solve the problems of short gas-liquid contact time and low acid removal efficiency in existing acid mist treatment equipment using single-stage spray towers.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A bubbling acid mist scrubbing tower includes: a tower body containing an alkaline solution for scrubbing acid mist; an air inlet pipe extending from the outside of the tower body into the inside to discharge acid mist into the tower body; and an aeration pipe installed at the outlet of the air inlet pipe, through which acid mist enters the alkaline solution for reaction.

[0006] By adopting the above technical solution, acid mist enters the tower body through the air inlet pipe and enters the alkaline solution through the aeration pipe, so that the acid mist and alkaline solution can fully contact and undergo a neutralization reaction, which effectively improves the treatment efficiency of acid mist and solves the problems of short gas-liquid contact time and low acid removal efficiency of existing single-stage spray towers.

[0007] Furthermore, the aeration pipe includes a delivery pipe connected to the air inlet pipe and a perforated plate located at the bottom of the delivery pipe, and a plug is provided at the end of the delivery pipe away from the air inlet pipe.

[0008] By adopting the above technical solution, the porous plate can more evenly disperse acid mist into the alkaline solution, further increasing the gas-liquid contact area and improving the treatment effect of acid mist.

[0009] Furthermore, the porous plate comes into contact with the surface of the alkaline solution inside the tower.

[0010] By adopting the above technical solution, it is ensured that the acid mist can directly contact the surface of the alkaline solution, thereby further improving the reaction efficiency between the acid mist and the alkaline solution and enhancing the acid removal effect.

[0011] Furthermore, a nozzle is installed above the aeration pipe inside the tower body. After the acid mist exhaust gas continues to rise, it reacts again with the water mist sprayed from the nozzle to remove acid.

[0012] By adopting the above technical solution, the acid mist exhaust gas, after preliminary treatment, continues to rise and undergoes a secondary reaction with the water mist sprayed from the nozzle, further removing acidic substances from the acid mist, improving acid removal efficiency, and solving the problem of unsatisfactory treatment effect of existing equipment.

[0013] Furthermore, a water tank is provided on one side of the bottom of the tower body, and the water tank is connected to the nozzle.

[0014] By adopting the above technical solution, the water tank provides a stable water source for the nozzles, ensuring that the nozzles can continuously spray water mist, guaranteeing the smooth progress of the secondary acid removal process, and also facilitating the recycling of water resources.

[0015] Furthermore, a support frame is provided inside the tower, and filler material that increases the gas-water contact surface is placed on the support frame. Multiple sets of nozzles and support frames are arranged vertically inside the tower.

[0016] By adopting the above technical solution, the packing can further increase the gas-water contact area and improve the reaction efficiency of acid mist and alkaline solution. At the same time, the setting of multiple sets of nozzles and support frames can treat acid mist multiple times, further improving the acid removal effect and solving the problem of easy clogging of existing packed towers.

[0017] Furthermore, the tower body is provided with an S-baffle plate at the top of the support frame and a wire mesh demister located above the S-baffle plate.

[0018] By adopting the above technical solutions, the S-baffle plate can cause acid mist to undergo multiple deflections within the tower, further extending the residence time of acid mist within the tower and improving acid removal efficiency; the wire mesh demister can effectively remove water mist from the acid mist, preventing water mist from affecting downstream equipment and improving the operational stability of the equipment.

[0019] Furthermore, a flue is provided at the top of the tower body, and a fan is provided at the inlet of the air intake pipe.

[0020] By adopting the above technical solution, the flue can discharge the treated waste gas, and the fan can provide power to allow the acid mist to smoothly enter the tower for treatment, ensuring the normal operation of the equipment.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The bubbling acid mist scrubbing tower of this invention, by setting up aeration pipes, allows acid mist to uniformly enter the alkaline solution for reaction, effectively improving the acid mist treatment efficiency and solving the problems of short gas-liquid contact time and low acid removal efficiency in existing single-stage spray towers. By setting up perforated plates and packing, the gas-liquid contact area is further increased, improving the reaction efficiency between acid mist and alkaline solution and enhancing the acid removal effect. By setting up nozzles and multiple sets of support frames, the acid mist is treated multiple times, further improving the acid removal efficiency and solving the problem of easy clogging in existing packed towers. By setting up S-baffles and wire mesh demisters, the residence time of acid mist in the tower is extended, further improving the acid removal efficiency and effectively removing water mist from the acid mist, thus improving the operational stability of the equipment. Attached Figure Description

[0023] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0024] In the attached diagram:

[0025] Figure 1 This is a schematic diagram of the overall structure of the bubbling acid mist scrubbing tower described in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the aeration pipe portion described in an embodiment of the present utility model;

[0027] Figure 3 This is a schematic diagram of the nozzle portion according to an embodiment of the present utility model;

[0028] Figure 4 This is a cross-sectional view of the tower body according to an embodiment of the present utility model;

[0029] Figure 5 This is a schematic diagram of the aeration pipe described in an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Tower body; 2. Air inlet pipe;

[0032] 3. Aeration pipe; 301. Delivery pipe; 302. Perforated plate; 303. Plug;

[0033] 4. Nozzle; 5. Water pipe; 6. Water pump; 7. Support frame; 8. Packing material; 9. S-baffle plate; 10. Wire mesh demister; 11. Flue; 12. Water tank; 13. Fan. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0035] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "back" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0037] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] This embodiment relates to a bubbling acid mist scrubbing tower, the overall structure of which is as follows: Figure 1 and Figure 2 As shown, it includes a tower body 1, an air inlet pipe 2, and an aeration pipe 3.

[0039] The tower body 1 contains an alkaline solution to wash away the acid mist. The air inlet pipe 2 extends from the outside of the tower body 1 into the inside to discharge the acid mist into the tower body 1. The aeration pipe 3 is installed at the outlet of the air inlet pipe 2, and the acid mist enters the alkaline solution from the aeration pipe 3 to react.

[0040] It is worth mentioning that sodium hydroxide solution can be preferred as the alkaline solution. The acid mist is neutralized by the alkaline solution, thereby removing the acidic components in the exhaust gas. The inlet of the air inlet pipe 2 is connected to the inside of the fume hood. The acid mist exhaust gas is discharged from the air inlet pipe 2 into the aeration pipe 3. Under the action of the aeration pipe 3, the acid mist exhaust gas is fully mixed with the alkaline solution, which improves the full reaction between the acid mist exhaust gas and the solution. It should be noted that the air outlet of the aeration pipe 3 is in contact with the liquid surface of the alkaline solution. This setting ensures that the small bubbles discharged from the aeration pipe 3 can enter the solution for mixing.

[0041] Based on the above overall introduction, this embodiment presents an exemplary structure of a bubbling acid mist scrubbing tower, such as... Figure 3 and Figure 4As shown, a nozzle 4 is installed above the aeration pipe 3 inside the tower body 1. After the acid mist exhaust gas continues to rise, it reacts again with the water mist sprayed from the nozzle 4 to remove acid. It should be noted that the nozzle 4 is connected to a water pipe 5, which is connected to an external alkaline solution device. The alkaline solution device can be supplied with water by a water pump 6. The water mist sprayed from the nozzle 4 mixes with the acid mist exhaust gas to remove acid and wash it, thus achieving a second acid removal.

[0042] Preferably, in this embodiment, a support frame 7 is provided inside the tower body 1, and packing material 8 that increases the gas-water contact surface is placed on the support frame 7. Specifically, the support frame 7 is installed horizontally inside the tower body 1, and the packing material 8 is Raschig ring packing 8. The Raschig ring packing 8 is laid on the support frame 7, and water mist and acid mist combine at the Raschig ring packing 8. This arrangement can increase the gas-water contact surface, thereby achieving acid removal of acid mist waste gas by spraying solution washing in the Raschig ring packing 8. Multiple sets of nozzles 4 and support frames 7 can be arranged vertically inside the tower body 1 to improve the quality of acid removal.

[0043] As a preferred option, such as Figure 3 and Figure 4 As shown in this embodiment, the tower body 1 is equipped with an S-baffle plate 9 at the top of the support frame 7 and a wire mesh demister 10 located above the S-baffle plate 9. It should be noted that the acid mist exhaust gas, after being demisted again, passes through the S-baffle plate 9 to remove droplets, achieving gas-liquid separation. The wire mesh demister 10 also achieves gas-liquid separation. This two-stage treatment improves the quality of gas-liquid separation before discharge, preventing secondary pollution from treated liquid mist emissions and meeting acid mist treatment requirements.

[0044] As a preferred option, such as Figure 1 As shown, in this embodiment, a flue 11 is provided at the top of the tower body 1, a water tank 12 is provided on one side of the bottom of the tower body 1, and a fan 13 is provided at the inlet of the air inlet pipe 2. The fan 13 is connected to the fume hood. It should be noted that the alkaline solution device is the water tank 12, the flue 11 can raise the position of gas discharge, the water tank 12 contains alkaline solution, the alkaline solution flows into the bottom of the tower body 1, and the nozzle 4 and the water tank 12 are connected through a pump body and pipe. This arrangement can ensure that the acid mist exhaust gas discharged from the aeration pipe 3 comes into contact with the alkaline solution, and the nozzle 4 can also spray alkaline solution water mist. The fume hood is used to collect the acid mist exhaust gas, and the fan 13 discharges the acid mist exhaust gas in the fume hood into the air inlet pipe 2.

[0045] As a preferred option, such as Figure 5As shown, in this embodiment, the aeration pipe 3 includes a delivery pipe 301 connected to the air inlet pipe 2 and a perforated plate 302 located at the bottom of the delivery pipe 301. A plug 303 is provided at the end of the delivery pipe 301 away from the air inlet pipe 2. It should be noted that the delivery pipe 301 is connected to the perforated plate 302 to ensure that the acid mist exhaust gas is fully mixed in the solution in the form of small bubbles. One end of the delivery pipe 301 is connected to the air inlet pipe 2, and the other end is sealed by the plug 303. This arrangement ensures that the acid mist exhaust gas can be discharged from the perforated plate 302.

[0046] The bubbling acid mist scrubbing tower in this embodiment, by setting up aeration pipes 3, allows acid mist to uniformly enter the alkaline solution for reaction, effectively improving the acid mist treatment efficiency and solving the problems of short gas-liquid contact time and low acid removal efficiency in existing single-stage spray towers. By setting up perforated plates 302 and packing 8, the gas-liquid contact area is further increased, improving the reaction efficiency between acid mist and alkaline solution and enhancing the acid removal effect. By setting up nozzles 4 and multiple sets of support frames 7, the acid mist is treated multiple times, further improving the acid removal efficiency and solving the problem of easy clogging in existing packing 8 towers. By setting up S-baffles 9 and wire mesh demisters 10, the residence time of acid mist in the tower body 1 is extended, further improving the acid removal efficiency and effectively removing water mist from the acid mist, thus improving the operational stability of the equipment.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bubble column acid mist scrubbing tower characterized by, Include: Tower (1), containing alkaline solution to wash acid mist; Gas inlet pipe (2), from the tower (1) outside into the inside, the acid mist into the tower (1) in; Aeration pipe (3), installed at the outlet of the gas inlet pipe (2), acid mist from the aeration pipe (3) into the alkaline solution reaction.

2. According to claim 1, the bubble type acid mist washing tower, characterized in that: The aeration pipe (3) includes a delivery pipe (301) in communication with the gas inlet pipe (2), a perforated plate (302) at the bottom of the delivery pipe (301), and a plug (303) at the end of the delivery pipe (301) away from the gas inlet pipe (2).

3. According to claim 2, the bubble type acid mist washing tower, characterized in that: The perforated plate (302) is in contact with the liquid level of the alkaline solution in the tower (1).

4. According to claim 1, the bubble type acid mist washing tower, characterized in that: The tower (1) is provided with a spray head (4) at the upper part of the aeration pipe (3), and the acid mist exhaust gas continues to rise and reacts with the water mist sprayed by the spray head (4) to remove acid.

5. According to claim 4, the bubble type acid mist washing tower, characterized in that: The tower (1) is provided with a water tank (12) on one side of the bottom, and the water tank (12) is connected with the spray head (4).

6. According to claim 4, the bubble type acid mist washing tower, characterized in that: The tower (1) is provided with a support frame (7), and the support frame (7) is placed with a filler (8) for increasing the gas-water contact area, and the spray head (4) and the support frame (7) are vertically arranged in multiple groups in the tower (1).

7. According to claim 6, the bubble type acid mist washing tower, characterized in that: The tower (1) is provided with an S baffle (9) at the top of the support frame (7) and a wire mesh demister (10) at the upper part of the S baffle (9).

8. According to claim 1, the bubble type acid mist washing tower, characterized in that: The tower (1) is provided with a flue (11) at the top, and the inlet of the gas inlet pipe (2) is provided with a fan (13).

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