Hydrochloric acid tail gas absorption treatment device

Abstract

The utility model relates to the technical field of tail gas treatment, and discloses a hydrochloric acid tail gas absorption treatment device, which comprises a treatment mechanism and an adsorption mechanism, the adsorption mechanism is fixedly connected to the surface of the treatment mechanism, the adsorption mechanism comprises a filler unit and a circulating unit, the filler unit is fixedly connected to the inside of the treatment mechanism, and the circulating unit is fixedly connected to the inside of the treatment mechanism. And the circulating unit is fixedly connected to the side surface of the treatment mechanism. According to the hydrochloric acid tail gas absorption treatment device, the specific filler layer and spraying device design is adopted, the contact area of waste gas and absorption liquid is increased, the absorption efficiency is improved, the used adsorption liquid can be recycled, the use efficiency is high, alkali liquor is adopted as the absorption liquid, the alkali liquor and hydrochloric acid tail gas can be subjected to an acid-base neutralization reaction, and the hydrochloric acid tail gas can be recycled. The hydrochloric acid tail gas can be fully and efficiently absorbed to generate corresponding salt and water, and hydrogen chloride in the tail gas is absorbed by the water to form combined absorption, so that the hydrochloric acid tail gas can be comprehensively and efficiently absorbed and treated, the absorption efficiency is high, and the treatment effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a hydrochloric acid tail gas absorption treatment device. Background Art

[0002] In the chemical production process, a large amount of hydrochloric acid gas is usually discharged into the air along with water vapor to form hydrochloric acid tail gas. If this type of tail gas is not absorbed and treated, it will cause great danger to the environment and human health.

[0003] The prior art discloses a hydrochloric acid tail gas absorption and treatment device with application number: 202321493836.0, including a primary filter tank, a secondary absorption tank and a tertiary absorption tank; the primary filter tank is provided with an air inlet and an air outlet, and a filter medium is provided between the air inlet and the air outlet; the air outlet of the primary filter tank is connected to the side wall of the secondary absorption tank below the liquid level of the absorption liquid through a first pipe, and an exhaust port is provided on the top of the secondary absorption tank, and the exhaust port is connected to the side wall of the tertiary absorption tank below the liquid level of the absorption liquid through a second pipe, and the top of the tertiary absorption tank is an open structure. The utility model can filter the hydrochloric acid tail gas first and then absorb it step by step, effectively remove the impurity components therein before absorption, effectively improve the purity of the by-products obtained in the secondary absorption tank, improve the utilization value of the by-products, and ensure that the hydrochloric acid tail gas is effectively purified through the design of the tertiary absorption tank, so as to achieve the pollution-free discharge of the hydrochloric acid tail gas.

[0004] However, the existing technology still has the following shortcomings: when the above-mentioned device is used, the journey is long and needs to pass through multiple absorption tanks for conduction. When in use, the conduction efficiency is low, which affects the treatment efficiency and there is a slow processing speed. Therefore, it is of great practical significance to develop an efficient and simple hydrochloric acid tail gas absorption treatment device. Utility Model Content

[0005] The purpose of the utility model is to provide a hydrochloric acid tail gas absorption treatment device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a hydrochloric acid tail gas absorption treatment device, comprising a treatment mechanism and an adsorption mechanism, wherein the adsorption mechanism is fixedly connected to the surface of the treatment mechanism.

[0007] The adsorption mechanism comprises a filling unit and a circulation unit, wherein the filling unit is fixedly connected to the inside of the processing mechanism, and the circulation unit is fixedly connected to the side of the processing mechanism.

[0008] Preferably, the treatment mechanism consists of a treatment tower, a support frame, a base plate, an air inlet pipe, an exhaust pipe interface and an exhaust port, the support frame is fixedly connected to the bottom of the treatment tower, the base plate is fixedly connected to the bottom of the support frame, the air inlet pipe is fixedly connected to the side of the bottom of the treatment tower, the exhaust pipe interface is rotatably connected to the side of the air inlet pipe, and the exhaust port is fixedly connected to the side of the upper end of the treatment tower.

[0009] Preferably, the packing unit consists of a circulation groove, a mounting frame, a packing plate and connecting holes, the circulation groove is opened at the inner bottom of the treatment tower, the mounting frame is fixedly connected to the inner wall of the treatment tower, the packing plate is fixedly connected to the inside of the mounting frame, and the connecting holes are opened on the surface of the packing plate, thereby increasing the contact area between the exhaust gas and the absorption liquid and improving the absorption efficiency.

[0010] Preferably, the circulation unit consists of a connecting frame, a circulation pump, a suction pipe, an absorption liquid barrel, a guide pipe, a tower cover and a spray port, the connecting frame is fixedly connected to the side of the treatment tower, the circulation pump is fixedly connected to the inside of the connecting frame, the suction pipe is fixedly connected between the circulation pump and the treatment tower, the absorption liquid barrel is fixedly connected to the top of the connecting frame, the guide pipe is fixedly connected between the absorption liquid barrel and the tower cover, the tower cover is fixedly connected to the top of the treatment tower, and the spray port is fixedly connected to the inner bottom of the tower cover, so as to facilitate the recovery of the used adsorption liquid, and adopt a specific packing layer and spray device design to increase the contact area between the exhaust gas and the absorption liquid, improve the absorption efficiency, and can recover the used adsorption liquid, with high utilization efficiency, and can form combined absorption, so as to realize comprehensive and efficient absorption treatment of hydrochloric acid tail gas treatment.

[0011] Preferably, the absorption liquid barrel is connected to the circulation pump, and the guide pipe is connected to the absorption liquid barrel and the spray port, which is convenient for connection and guidance and convenient for transmission and treatment of waste gas.

[0012] Preferably, the absorption liquid barrel is loaded with alkaline solution, which can undergo an acid-base neutralization reaction with the hydrochloric acid tail gas to generate corresponding salt and water, and then the water absorbs the hydrogen chloride in the tail gas to form a combined absorption, which can achieve comprehensive and efficient absorption treatment of the hydrochloric acid tail gas with high absorption efficiency and good treatment effect.

[0013] Preferably, the treatment tower and the internal packing plates are made of stainless steel. Stainless steel has good corrosion resistance, especially good resistance to alkali solution. It has high strength and good toughness. The stainless steel storage tank also has good sealing and hygiene, ensuring that the absorption liquid will not be contaminated by the outside.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The hydrochloric acid tail gas absorption treatment device adopts a specific packing layer and spray device design to increase the contact area between the exhaust gas and the absorption liquid, improve the absorption efficiency, and can recycle the used absorption liquid, with high utilization efficiency.

[0016] 2. The hydrochloric acid tail gas absorption treatment device adopts alkaline solution as the absorption liquid, which can undergo acid-base neutralization reaction with the hydrochloric acid tail gas to generate corresponding salt and water, and then the water absorbs the hydrogen chloride in the tail gas to form a combined absorption, which can realize comprehensive and efficient absorption treatment of the hydrochloric acid tail gas, with high absorption efficiency and good treatment effect.

[0017] 3. The hydrochloric acid tail gas absorption treatment device is made of stainless steel. Stainless steel has good corrosion resistance, especially good resistance to alkali solution. It has high strength and good toughness. The stainless steel storage tank also has good sealing and hygiene, ensuring that the absorption liquid will not be contaminated by the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0019] Figure 2 This is a side view of the structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the bottom structure of the tower cover of the utility model.

[0022] In the figure: 1. treatment mechanism; 101. treatment tower; 102. support frame; 103. bottom plate; 104. air inlet pipe; 105. exhaust pipe interface; 106. exhaust port; 2. adsorption mechanism; 201. circulation tank; 202. mounting frame; 203. packing plate; 204. connecting hole; 211. connecting frame; 212. circulation pump; 213. suction pipe; 214. absorption liquid barrel; 215. guide pipe; 216. tower cover; 217. spray port. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4The utility model provides the following technical solutions: a hydrochloric acid tail gas absorption treatment device, comprising a treatment mechanism 1 and an adsorption mechanism 2, wherein the adsorption mechanism 2 is fixedly connected to the surface of the treatment mechanism 1.

[0025] The adsorption mechanism 2 includes a packing unit and a circulation unit. The packing unit is fixedly connected to the inside of the processing mechanism 1 , and the circulation unit is fixedly connected to the side of the processing mechanism 1 .

[0026] The treatment mechanism 1 consists of a treatment tower 101, a support frame 102, a base plate 103, an air intake pipe 104, an exhaust pipe interface 105 and an exhaust port 106. The support frame 102 is fixedly connected to the bottom of the treatment tower 101, and the base plate 103 is fixedly connected to the bottom of the support frame 102, playing the main role of supporting the overall device. The air intake pipe 104 is fixedly connected to the side of the bottom of the treatment tower 101, and the exhaust pipe interface 105 is rotatably connected to the side of the air intake pipe 104 to facilitate the connection of the exhaust emission device to form a connection. The exhaust port 106 is fixedly connected to the side of the upper end of the treatment tower 101.

[0027] The packing unit is composed of a circulation tank 201, a mounting frame 202, a packing plate 203 and a connecting hole 204. The circulation tank 201 is opened at the inner bottom of the treatment tower 101, the mounting frame 202 is fixedly connected to the inner wall of the treatment tower 101, and the packing plate 203 is fixedly connected to the inside of the mounting frame 202. The material of the treatment tower 101 and the internal packing plate 203 is stainless steel. Stainless steel has good corrosion resistance, especially good resistance to alkali solution. It has high strength and good toughness. The stainless steel storage tank also has good sealing and hygiene, ensuring that the absorption liquid will not be affected by the outside. Pollution, the connecting hole 204 is opened on the surface of the packing plate 203, which is convenient for recycling the adsorption liquid after use, and adopts a specific packing layer and a spray device design to increase the contact area between the exhaust gas and the absorption liquid, improve the absorption efficiency, and can recycle the adsorption liquid after use, with high efficiency. After the initial reaction, it can also form a joint absorption to achieve a comprehensive and efficient absorption treatment of hydrochloric acid tail gas. The circulation unit is composed of a connecting frame 211, a circulation pump 212, a suction pipe 213, an absorption liquid barrel 214, a guide pipe 215, a tower cover 216 and a spray port 217, and the connection The frame 211 is fixedly connected to the side of the treatment tower 101, the circulation pump 212 is fixedly connected to the inside of the connecting frame 211, the suction pipe 213 is fixedly connected between the circulation pump 212 and the treatment tower 101, the absorption liquid barrel 214 is fixedly connected to the top of the connecting frame 211, the absorption liquid barrel 214 is connected to the circulation pump 212, and the guide pipe 215 is connected to the absorption liquid barrel 214 and the spray port 217, which is convenient for connection and guidance, and convenient for waste gas transmission and treatment. The absorption liquid barrel 214 is loaded with alkali solution, which can react with the hydrochloric acid tail gas to produce corresponding salt and water, and then Hydrogen chloride in the tail gas is absorbed by water, and the guide pipe 215 is fixedly connected between the absorption liquid barrel 214 and the tower cover 216. The tower cover 216 is fixedly connected to the top of the treatment tower 101, and the spray port 217 is fixedly connected to the inner bottom of the tower cover 216, which is convenient for spraying and also convenient for recovering the used absorption liquid. A specific packing layer and a spray device are designed to increase the contact area between the waste gas and the absorption liquid, improve the absorption efficiency, and be able to recover the used absorption liquid, with high utilization efficiency, and can form a combined absorption, thereby realizing a comprehensive and efficient absorption treatment of hydrochloric acid tail gas.

[0028] When in use, it is connected to the exhaust port through the air inlet pipe 104. A packing layer is provided in the treatment tower. A spray device is provided above the packing layer. The adsorption liquid is sprayed on the top of the packing plate 203 and the assembly is drained down to cover the multiple layers of the packing plate 203. When the exhaust gas enters the treatment tower 101, the exhaust gas enters through the gap between the packing plate 203 and the adsorption liquid. When the exhaust gas contacts the adsorption liquid made of alkaline liquid, the alkaline liquid can react with the hydrochloric acid exhaust gas to generate corresponding salt and water. The water then absorbs the hydrogen chloride in the exhaust gas to form a combined absorption. After a short stroke and a large area of ​​contact, the absorption treatment is comprehensive and efficient.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrochloric acid tail gas absorption treatment device, comprising a treatment mechanism (1) and an adsorption mechanism (2), characterized in that: The adsorption mechanism (2) is fixedly connected to the surface of the processing mechanism (1); The adsorption mechanism (2) comprises a filling unit and a circulation unit, wherein the filling unit is fixedly connected to the inside of the processing mechanism (1), and the circulation unit is fixedly connected to the side of the processing mechanism (1).

2. The hydrochloric acid tail gas absorption treatment device according to claim 1, characterized in that: The treatment mechanism (1) is composed of a treatment tower (101), a support frame (102), a bottom plate (103), an air intake pipe (104), an exhaust pipe interface (105) and an exhaust port (106); the support frame (102) is fixedly connected to the bottom of the treatment tower (101); the bottom plate (103) is fixedly connected to the bottom of the support frame (102); the air intake pipe (104) is fixedly connected to the side of the bottom of the treatment tower (101); the exhaust pipe interface (105) is rotatably connected to the side of the air intake pipe (104); and the exhaust port (106) is fixedly connected to the side of the upper end of the treatment tower (101).

3. A hydrochloric acid tail gas absorption treatment device according to claim 2, characterized in that: The packing unit is composed of a circulation groove (201), a mounting frame (202), a packing plate (203) and a connecting hole (204); the circulation groove (201) is opened at the inner bottom of the processing tower (101); the mounting frame (202) is fixedly connected to the inner wall of the processing tower (101); the packing plate (203) is fixedly connected to the inside of the mounting frame (202); and the connecting hole (204) is opened on the surface of the packing plate (203).

4. A hydrochloric acid tail gas absorption treatment device according to claim 3, characterized in that: The circulation unit is composed of a connecting frame (211), a circulation pump (212), a suction pipe (213), an absorption liquid barrel (214), a guide pipe (215), a tower cover (216) and a spray port (217); the connecting frame (211) is fixedly connected to the side of the treatment tower (101); the circulation pump (212) is fixedly connected to the inside of the connecting frame (211); the suction pipe (213) is fixedly connected between the circulation pump (212) and the treatment tower (101); the absorption liquid barrel (214) is fixedly connected to the top of the connecting frame (211); the guide pipe (215) is fixedly connected between the absorption liquid barrel (214) and the tower cover (216); the tower cover (216) is fixedly connected to the top of the treatment tower (101); and the spray port (217) is fixedly connected to the inner bottom of the tower cover (216).

5. A hydrochloric acid tail gas absorption treatment device according to claim 4, characterized in that: The absorption liquid barrel (214) is connected to the circulation pump (212), and the guide pipe (215) is connected to the absorption liquid barrel (214) and the spray port (217).

6. A hydrochloric acid tail gas absorption treatment device according to claim 5, characterized in that: The absorption liquid barrel (214) is loaded with alkaline solution.

7. The hydrochloric acid tail gas absorption treatment device according to claim 6, characterized in that: The processing tower (101) and the internal filling plate (203) are made of stainless steel.

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