Acid corrosion resistant tail gas absorption device

Abstract

The utility model discloses an acid-corrosion-resistant tail gas absorption device, and belongs to the technical field of chemical tail gas treatment devices. An acid-corrosion-resistant tail gas absorption device comprises a tank body and further comprises a plurality of sets of partition plates fixedly connected into the tank body, a plurality of sets of one-way air holes are formed in the partition plates and used for guiding gas below to the upper portion, and a plurality of sets of one-way air holes are formed in the partition plates. The liquid discharge hole is formed in the partition plate; the cam is rotationally connected to the tank body; the L-shaped rod is connected to the tank body in a sliding mode, one end of the L-shaped rod abuts against the cam, and the L-shaped rod conducts reciprocating rectilinear motion under the action of the cam; according to the utility model, the liquid with higher alkaline strength at the upper part can be guided to the lower part through the liquid discharge hole which is opened and closed in a timing manner, so that the liquid which is in contact with gas at the lower part can keep certain alkalinity, and acid gas can be conveniently subjected to neutralization reaction.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical tail gas treatment devices, in particular to an acid corrosion resistant tail gas absorption device. Background Art

[0002] Acidic tail gases such as acetic acid and hydrochloric acid are often produced in the chemical production process. If they are directly discharged into the air, they will cause many adverse effects on the environment. Therefore, the tail acid needs to be absorbed and treated before discharge.

[0003] At present, the acid tail gas absorption device usually has a multi-layer structure in the tank body and is filled with alkaline liquid for neutralizing the gas. The gas is injected into the liquid and contacted with the liquid for neutralization, so that the acidity of the discharged gas meets the standard.

[0004] However, this structure often results in the liquid that first contacts the gas being neutralized to be neutral or even acidic, which affects the subsequent neutralization reaction. Therefore, an acid corrosion resistant tail gas absorption device is provided to solve the above-mentioned problem. Utility Model Content

[0005] The purpose of the utility model is to solve the problems raised in the above background technology, and to propose an acid corrosion resistant tail gas absorption device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An acid corrosion resistant tail gas absorption device comprises a tank body and also comprises:

[0008] A plurality of baffles are fixedly connected to the tank body, and a plurality of one-way air holes are arranged on the baffles to guide the gas below to the upper part;

[0009] A drainage hole is provided on the partition plate;

[0010] A cam, rotatably connected to the tank body;

[0011] An L-shaped rod, slidably connected to the tank body, one end of the L-shaped rod abuts against a cam, and the L-shaped rod performs reciprocating linear motion under the action of the cam;

[0012] A plurality of groups of moving rods are all fixedly connected to the L-shaped rods, and a water-blocking rubber is fixedly connected to the moving rods, and the water-blocking rubber is used to seal the drainage hole.

[0013] In order to stir the liquid, preferably, a motor is fixedly connected to the tank body, a rotating shaft is fixedly connected to the output end of the motor, a stirring blade is fixedly connected to the rotating shaft, and the stirring blade is used to stir the liquid in the tank body.

[0014] For ease of installation, preferably, a mounting seat is fixedly connected to the tank body, the motor is fixedly connected to the mounting seat, and the L-shaped rod is slidably connected to the mounting seat.

[0015] To facilitate resetting, preferably, a spring member is sleeved on the L-shaped rod, a mounting block is fixedly connected to the L-shaped rod, two ends of the spring member are respectively against the mounting block and the mounting seat, and the spring member is used for resetting the L-shaped rod.

[0016] In order to facilitate the inflow and outflow of liquid, preferably, a liquid inlet pipe and a liquid outlet pipe are provided on the tank body.

[0017] In order to facilitate air in and out, preferably, an air outlet pipe and an air inlet pipe are provided on the tank body.

[0018] Compared with the prior art, the utility model provides an acid corrosion resistant tail gas absorption device, which has the following beneficial effects:

[0019] The utility model can guide the liquid with higher alkalinity strength at the upper part to the lower part through the drainage hole of the time switch, so that the liquid at the lower part which contacts with the gas first can maintain a certain alkalinity, which is convenient for neutralizing the acid gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of an acid corrosion resistant tail gas absorption device proposed by the utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of an acid corrosion resistant tail gas absorption device proposed by the utility model. Figure 2 ;

[0022] Figure 3 The utility model proposes an acid corrosion resistant tail gas absorption device Figure 2 The structural diagram of part A in the figure;

[0023] Figure 4 This is a schematic diagram of the structure of an acid corrosion resistant tail gas absorption device proposed by the utility model. Figure 3 ;

[0024] Figure 5 The utility model proposes an acid corrosion resistant tail gas absorption device Figure 4 The structural diagram of part B;

[0025] Figure 6 This is a schematic diagram of the structure of an acid corrosion resistant tail gas absorption device proposed by the utility model. Figure 4 .

[0026] In the figure: 1. tank body; 101. liquid inlet pipe; 102. air outlet pipe; 103. liquid outlet pipe; 104. air inlet pipe; 105. mounting seat; 201. motor; 202. rotating shaft; 203. stirring blade; 204. cam; 3. partition; 301. one-way air vent; 302. liquid drain hole; 401. L-shaped rod; 402. spring member; 403. mounting block; 404. moving rod; 405. water-blocking rubber. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Example:

[0029] Reference Figure 1-6 , an acid corrosion resistant tail gas absorption device, comprising a tank body 1, and also comprising: a plurality of baffles 3, all fixedly connected in the tank body 1, a plurality of one-way air holes 301 are arranged on the baffles 3, used to guide the gas below to the top; a drainage hole 302, arranged on the baffle 3; a cam 204, rotatably connected to the tank body 1; an L-shaped rod 401, slidably connected to the tank body 1, one end of the L-shaped rod 401 is against the cam 204, and the L-shaped rod 401 performs reciprocating linear motion under the action of the cam 204; a plurality of moving rods 404, all fixedly connected to the L-shaped rod 401, a water-blocking rubber 405 is fixedly connected to the moving rod 404, and the water-blocking rubber 405 is used to seal the drainage hole 302, and a motor 20 is fixedly connected to the tank body 1 1, a rotating shaft 202 is fixedly connected to the output end of the motor 201, and a stirring blade 203 is fixedly connected to the rotating shaft 202. The stirring blade 203 is used to stir the liquid in the tank body 1, and a mounting seat 105 is fixedly connected to the tank body 1. The motor 201 is fixedly connected to the mounting seat 105, and an L-shaped rod 401 is slidably connected to the mounting seat 105. A spring member 402 is sleeved on the L-shaped rod 401, and a mounting block 403 is fixedly connected to the L-shaped rod 401. The two ends of the spring member 402 are respectively against the mounting block 403 and the mounting seat 105. The spring member 402 is used to reset the L-shaped rod 401. A liquid inlet pipe 101 and a liquid outlet pipe 103 are provided on the tank body 1, and an air outlet pipe 102 and an air inlet pipe 104 are provided on the tank body 1.

[0030] The liquid outlet pipe 103 in the present device is used to discharge excess liquid. When in use, alkaline liquid is continuously injected into the tank body 1 through the liquid inlet pipe 101. After the liquid is discharged from the liquid outlet pipe 103, the acidic tail gas can be injected into the tank body 1 through the air inlet pipe 104. The liquid is continuously injected. At this time, the acidic tail gas will contact with the alkaline liquid for neutralization. The subsequent gas will be discharged through the one-way air permeable hole 301, come to the top, contact with the liquid above, and be neutralized for a second time until it is discharged from the air outlet pipe 102 at the top.

[0031] During this process, the motor 201 can be started, and the rotating shaft 202 can be rotated by the motor 201, so that the stirring blade 203 stirs the alkaline liquid and disperses part of the gas to increase the contact area with the liquid. At the same time, the cam 204 will also rotate accordingly. The rotation of the cam 204 will drive the L-shaped rod 401 to continuously reciprocate. During the reciprocating movement, the water-blocking rubber 405 will continuously separate and overlap with the drainage hole 302, so that the upper liquid passes through the drainage hole 302 and comes to the bottom, and then the upper liquid with strong alkalinity comes to the bottom and contacts with the lower liquid with poor alkalinity, thereby increasing the alkalinity of the lower part, which is convenient for acid-base neutralization of the tail gas. The excess liquid at the bottom will be discharged through the liquid outlet pipe 103. In this way, the lowermost liquid can always maintain a certain alkalinity, improve the utilization rate of the liquid, and facilitate the neutralization and absorption of the acidic tail gas.

[0032] The utility model can guide the liquid with higher alkalinity strength from the upper part to the lower part through the drainage hole 302 of the time switch, so that the liquid in the lower part that contacts the gas first can maintain a certain alkalinity, which is convenient for neutralizing the acidic gas.

[0033] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An acid corrosion resistant tail gas absorption device, comprising a tank body (1), characterized in that: Also includes: A plurality of groups of baffles (3) are fixedly connected in the tank body (1), and a plurality of groups of one-way air holes (301) are provided on the baffles (3) for guiding the gas at the bottom to the top; A drainage hole (302) is provided on the partition plate (3); A cam (204) rotatably connected to the tank body (1); An L-shaped rod (401) is slidably connected to the tank body (1), one end of the L-shaped rod (401) is in contact with the cam (204), and the L-shaped rod (401) performs reciprocating linear motion under the action of the cam (204); A plurality of groups of moving rods (404) are all fixedly connected to the L-shaped rod (401), and a water-blocking rubber (405) is fixedly connected to the moving rod (404), and the water-blocking rubber (405) is used to seal the drainage hole (302).

2. The acid corrosion resistant tail gas absorption device according to claim 1, characterized in that: The tank body (1) is fixedly connected to a motor (201), an output end of the motor (201) is fixedly connected to a rotating shaft (202), and a stirring blade (203) is fixedly connected to the rotating shaft (202), and the stirring blade (203) is used to stir the liquid in the tank body (1).

3. The acid corrosion resistant tail gas absorption device according to claim 2, characterized in that: The tank body (1) is fixedly connected with a mounting seat (105), the motor (201) is fixedly connected to the mounting seat (105), and the L-shaped rod (401) is slidably connected to the mounting seat (105).

4. The acid corrosion resistant tail gas absorption device according to claim 3, characterized in that: The L-shaped rod (401) is sleeved with a spring member (402), and a mounting block (403) is fixedly connected to the L-shaped rod (401). Two ends of the spring member (402) are respectively against the mounting block (403) and the mounting seat (105), and the spring member (402) is used for resetting the L-shaped rod (401).

5. The acid corrosion resistant tail gas absorption device according to claim 1, characterized in that: The tank body (1) is provided with a liquid inlet pipe (101) and a liquid outlet pipe (103).

6. The acid corrosion resistant tail gas absorption device according to claim 1, characterized in that: The tank body (1) is provided with an air outlet pipe (102) and an air inlet pipe (104).

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