Acidic tail gas sealing and absorbing device

Abstract

The utility model discloses an acid tail gas sealing and absorbing device, and belongs to the technical field of industrial tail gas treatment devices. The acid tail gas sealing and absorbing device comprises a tank body, and further comprises a cavity I, a cavity II, a cavity III and a cavity IV which are arranged in the tank body from bottom to top; the multiple sets of shells are all arranged in the tank body, the shells are used for gas between the cavities to flow from bottom to top, and piston devices are connected into the shells; the three groups of connecting pipes are fixedly connected to the tank body, and the connecting pipes are used for liquid among the cavities to flow from top to bottom; according to the utility model, acid tail gas is subjected to sealing absorption treatment through alkaline water from bottom to top, so that the discharged gas is neutral, and meanwhile, the water which is still alkaline at the uppermost part flows into the lower chamber, so that the utilization rate of the alkaline water is increased, and the use is convenient.

Description

Technical Field

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

[0002] During the production of fine chemicals, tail gas is generated. This tail gas generally contains acidic gas pollutants such as hydrogen chloride and sulfur dioxide. If it is discharged into the atmosphere, it will seriously pollute the environment. It must be removed to meet environmental protection standards before it can be discharged into the atmosphere.

[0003] Existing acidic tail gas absorption and treatment devices generally use a neutralization method for treatment, that is, the acidic tail gas passes through alkaline water to produce acid-base neutralization, so that the exhausted gas is neutral gas and can be directly discharged to the outside. Therefore, an acidic tail gas sealed absorption device is provided for performing a neutralization reaction to make the exhausted gas neutral. Utility Model Content

[0004] The utility model aims to solve the problems raised in the above-mentioned background technology and proposes a sealed absorption device for acid tail gas.

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

[0006] The acid tail gas sealing absorption device comprises a tank body and also comprises:

[0007] The tank body is provided with chamber 1, chamber 2, chamber 3, and chamber 4, and the chamber 1, chamber 2, chamber 3, and chamber 4 are arranged from bottom to top;

[0008] A plurality of shells are arranged in the tank body, the shells are used for the gas flow from bottom to top between the chambers, and a piston device is connected inside the shells;

[0009] Three groups of connecting pipes, all fixedly connected to the tank body, the connecting pipes are used for the flow of liquid between the chambers from top to bottom;

[0010] An air inlet is arranged at the bottom of the tank body, and the air inlet is used to transport the gas to be processed into chamber one.

[0011] In order to facilitate the flow of gas, preferably, the piston device includes a piston column, a spring member, and an air outlet. The piston column is slidably connected in the shell, and multiple groups of air outlets are arranged on the shell. The air outlet is located above the piston column, and the spring member is connected in the shell. The other end of the spring member is connected to the piston column.

[0012] In order to filter the dust in the exhaust gas again, preferably, a filter is connected to the end of the shell away from the air outlet.

[0013] In order to facilitate the falling of dust, preferably, a knocking rod is connected to the piston column, and the knocking rod is against the filter screen.

[0014] In order to play a supporting role, preferably, a bottom bracket is fixedly connected to the shell, and the filter is located on the bottom bracket.

[0015] For ease of use, preferably, it further comprises: a liquid inlet pipe connected to the chamber 4, the liquid inlet pipe being used to replenish liquid;

[0016] A liquid outlet pipe is connected to the chamber 1 and is used to discharge liquid.

[0017] Compared with the prior art, the utility model provides an acid tail gas sealing absorption device, which has the following beneficial effects:

[0018] The utility model uses alkaline water to seal and absorb the acidic tail gas from bottom to top, so that the discharged gas is neutral. At the same time, the alkaline water at the top will flow into the chamber below, thereby increasing the utilization rate of the alkaline water and facilitating its use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the acid tail gas sealing absorption device proposed by the utility model;

[0020] Figure 2 A cross-sectional view of the acid tail gas sealing absorption device proposed in the utility model Figure 1 ;

[0021] Figure 3 The utility model proposes a sealed absorption device for acid tail gas Figure 2 Schematic diagram of the structure of part A;

[0022] Figure 4 A cross-sectional view of the acid tail gas sealing absorption device proposed in the utility model Figure 2 ;

[0023] Figure 5 The present invention is a schematic diagram of the structure of the shell of the acid tail gas sealing absorption device.

[0024] In the figure: 1. tank body; 101. chamber one; 102. chamber two; 103. chamber three; 104. chamber four; 105. liquid inlet pipe; 106. liquid outlet pipe; 107. air inlet; 2. connecting pipe; 3. shell; 301. piston column; 302. spring part; 303. air outlet; 304. filter; 305. bottom bracket; 306. knocking rod. DETAILED DESCRIPTION

[0025] 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.

[0026] Embodiment 1:

[0027] Reference Figure 1-5 The acid tail gas sealing absorption device includes a tank body 1, and also includes: a chamber 101, a chamber 2 102, a chamber 3 103, and a chamber 4 104 are arranged in the tank body 1, and the chamber 1 101, the chamber 2 102, the chamber 3 103, and the chamber 4 104 are arranged from bottom to top; a plurality of shells 3 are all arranged in the tank body 1, and the shells 3 are used for the flow of gas from bottom to top between the chambers, and a piston device is connected in the shells 3; three groups of connecting pipes 2 are all fixedly connected to the tank body 1, and the connecting pipes 2 are used for the flow of liquid from top to bottom between the chambers; an air inlet 107 is arranged at the bottom of the tank body 1, and the air inlet 1 07 is used to transport the gas to be processed into chamber one 101, the piston device includes a piston column 301, a spring member 302, and an air outlet 303, the piston column 301 is slidably connected in the shell 3, and multiple groups of air outlets 303 are arranged on the shell 3, and the air outlet 303 is located above the piston column 301, the spring member 302 is connected in the shell 3, and the other end of the spring member 302 is connected to the piston column 301, the liquid inlet pipe 105 is connected to the chamber four 104, and the liquid inlet pipe 105 is used to replenish liquid; the liquid outlet pipe 106 is connected to the chamber one 101, and the liquid outlet pipe 106 is used to discharge liquid.

[0028] When installing this device, Figure 2 As shown, the installation is performed, wherein a one-way valve is provided in the connecting pipe 2 to facilitate the downward flow of alkaline water.

[0029] When in use, alkaline liquid is continuously injected through the top liquid inlet pipe 105. At this time, the liquid in the uppermost chamber 4 104 reaches the connecting pipe 2 and flows into the lower chamber 3 103, and so on, until the lowermost chamber 101 is filled with at least half of the liquid. At this time, the bottom air inlet 107 takes in air, and the gas first neutralizes the alkaline liquid in the chamber 101, and then accumulates in the chamber 101. The subsequent increase in air pressure will cause the piston rod 301 to move upward. , and then the piston rod 301 moves to the air outlet 303. At this time, the gas that has been initially filtered will enter the upper chamber 2 102 through the air outlet 303 and neutralize with the gas in the chamber 2 102. Since the gas continues to enter the chamber 1 101, the gas that has been initially filtered in the chamber 1 101 will continue to enter the chamber 2 102, and then accumulate in the chamber 2 102 and come to the chamber 3 103, and so on, until it is discharged to the outside through the chamber 4 104.

[0030] After processing some gases, the alkaline liquid in chamber 101 will become a neutral liquid. At this time, the gas injection can be stopped, and the alkaline liquid can be injected again through the liquid inlet pipe 105, and the liquid outlet pipe 106 is opened to discharge the neutral liquid. At this time, the liquid with strong alkalinity at the top will enter the chamber below until it reaches the bottom chamber 101. When the liquid in chamber 101 reaches the appropriate amount, gas can be injected again for processing.

[0031] For ease of use, an acid-base detection head can be set in chamber 101. When it is sensed that the alkaline liquid is about to become neutral, the air intake is stopped, and after water is added and drainage is discharged, the process can be carried out again.

[0032] Embodiment 2:

[0033] Reference Figure 1-5 , the acid tail gas sealing absorption device is basically the same as Example 1, and further: a filter screen 304 is connected to the end of the shell 3 away from the gas outlet 303, a knocking rod 306 is connected to the piston column 301, the knocking rod 306 is against the filter screen 304, and a bottom bracket 305 is fixedly connected to the shell 3, and the filter screen 304 is located on the bottom bracket 305.

[0034] When the acidic exhaust gas is usually treated, alkaline water can perform primary treatment on the dust in the exhaust gas, and the filter 304 can perform secondary treatment, so that the exhaust gas does not contain a large amount of dust.

[0035] When changing the water, since the gas is no longer injected and the flow of the liquid will carry part of the gas downward, thereby restoring the air pressure, under the action of the spring member 302, the knocking rod 306 will contact the filter screen 304 at the bottom, and a knocking vibration will be generated, causing some dust to fall off and contact the alkaline water below.

[0036] The utility model uses alkaline water to seal and absorb the acidic tail gas from bottom to top, so that the discharged gas is neutral. At the same time, the alkaline water at the top will flow into the chamber below, thereby increasing the utilization rate of the alkaline water and facilitating its use.

[0037] 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. A sealed absorption device for acid tail gas, comprising a tank body (1), characterized in that: Also includes: The tank body (1) is provided with chamber one (101), chamber two (102), chamber three (103), and chamber four (104), wherein the chamber one (101), chamber two (102), chamber three (103), and chamber four (104) are arranged from bottom to top; A plurality of shells (3) are arranged in the tank body (1); the shells (3) are used for the flow of gas from bottom to top between chambers; a piston device is connected to the shells (3); Three groups of connecting pipes (2), all fixedly connected to the tank body (1), the connecting pipes (2) being used for the flow of liquid between the chambers from top to bottom; An air inlet (107) is arranged at the bottom of the tank body (1), and the air inlet (107) is used to transport the gas to be processed into chamber one (101).

2. The acid tail gas sealing absorption device according to claim 1, characterized in that: The piston device comprises a piston column (301), a spring component (302), and an air outlet (303); the piston column (301) is slidably connected in a housing (3); a plurality of groups of air outlets (303) are arranged on the housing (3); the air outlets (303) are located above the piston column (301); the spring component (302) is connected in the housing (3); and the other end of the spring component (302) is connected to the piston column (301).

3. The acid tail gas sealing absorption device according to claim 2, characterized in that: A filter screen (304) is connected to one end of the housing (3) away from the air outlet (303).

4. The acid tail gas sealing absorption device according to claim 3, characterized in that: The piston column (301) is connected to a knocking rod (306), and the knocking rod (306) abuts against the filter screen (304).

5. The acid tail gas sealed absorption device according to claim 4, characterized in that: A bottom bracket (305) is fixedly connected to the shell (3), and the filter screen (304) is located on the bottom bracket (305).

6. The acid tail gas sealing absorption device according to claim 1, characterized in that: Also includes: A liquid inlet pipe (105), connected to the chamber four (104), the liquid inlet pipe (105) being used to replenish liquid; A liquid outlet pipe (106) is connected to the chamber one (101), and the liquid outlet pipe (106) is used to discharge liquid.

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