Absorption device for chloroethanol production tail gas

Abstract

The utility model belongs to the technical field of chloroethanol production tail gas purification, and provides a chloroethanol production tail gas absorption device which comprises a cleaning box, an absorption box is arranged on one side of the cleaning box, a cleaning structure is arranged in the cleaning box, a filtering structure is arranged in the absorption box, and a transmission structure is arranged between the filtering structure and the cleaning structure. The cleaning structure comprises a driving cylinder rotationally inserted into the top of the cleaning box, a connecting pipe is fixedly inserted into the bottom end of the driving cylinder, a plurality of nozzles are uniformly arranged at the bottom end of the connecting pipe, a conveying pipe is rotationally inserted into the top end of the driving cylinder, the conveying pipe is fixed to one side of the cleaning box, and the bottom end of the conveying pipe extends and penetrates to the inner bottom end of the cleaning box. The problems that according to existing equipment, tail gas is guided into a water washing box to be washed and filtered, but the tail gas can form a large number of bubble bodies in water, a water tank cannot conduct active breaking behavior, harmful substances wrapped in the bubbles cannot be washed, and the purification effect of the equipment is reduced are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of chloroethanol production tail gas purification, especially to a kind of absorption device of chloroethanol production tail gas. BACKGROUND

[0002] 2-chloroethanol is also known as chloroethanol, which is an important organic solvent and organic synthesis raw material. It is used to manufacture ethylene oxide, synthetic rubber, dyes, pharmaceuticals and pesticides, etc. It is also used as an organic solvent. The vapor of 2-chloroethanol can form an explosive mixture with air and can cause combustion and explosion when exposed to open flame or high heat. It can react with oxidizing agents. It can decompose phosgene, a highly toxic gas, at high temperatures. When it comes into contact with water or water vapor, it reacts to release heat and produce a toxic and corrosive gas. High concentrations of vapor can irritate the eyes and upper respiratory tract. High concentrations of inhalation can cause headache, dizziness, lethargy, nausea, vomiting, followed by fatigue, dyspnea, cyanosis, ataxia, convulsions, and coma. Severe cases can develop brain and lung edema. Circulatory and respiratory failure can lead to death. Skin contact can cause skin redness and skin absorption can cause poisoning. Oral ingestion can be fatal. Chronic effects include headache, fatigue, decreased appetite, low blood pressure, and weight loss. Therefore, there is an urgent need for an absorption device for chloroethanol production tail gas.

[0003] According to the search, the patent with the publication number CN213528094U provides an absorption device for 2-chloroethanol production tail gas. The bottom of the inner wall of the absorption box is rotatably connected with two lead screws, the top of each lead screw is fixedly connected with a connecting rod, the outer surface of each connecting rod is fixedly connected with a first turbine, and the top of the inner wall of the absorption box is fixedly connected with two support plates.

[0004] The existing equipment guides the tail gas to the water washing box for water washing and filtering behavior, but the tail gas forms a large number of bubbles in the water, and the water tank cannot actively break the bubbles, so that the harmful substances wrapped in the bubbles cannot be washed by water, reducing the purification effect of the equipment.

[0005] Therefore, it is necessary to provide an absorption device for chloroethanol production tail gas to solve the above technical problems. Utility model content

[0006] To solve the above technical problems, the utility model provides an absorption device for chloroethanol production tail gas.

[0007] The absorption device for chloroethanol production tail gas provided by the utility model comprises a cleaning box, an absorption box is arranged on one side of the cleaning box, a cleaning structure is arranged in the cleaning box, a filtering structure is arranged in the absorption box, and a transmission structure is arranged between the filtering structure and the cleaning structure.

[0008] The cleaning structure includes a driving cylinder rotatably inserted into the top of the cleaning tank, a connecting pipe fixedly inserted into the bottom end of the driving cylinder, a plurality of spray heads uniformly arranged at the bottom end of the connecting pipe, a conveying pipe rotatably inserted into the top end of the driving cylinder, the conveying pipe being fixed to one side of the cleaning tank, the bottom end of the conveying pipe extending through the inside bottom end of the cleaning tank and being inserted with a water pump machine, and the water pump machine being fixedly arranged in the cleaning tank.

[0009] In order to achieve the effect of filtering harmful substances, the utility model provides a kind of absorption device for chloroethanol production tail gas, preferably, the filtering structure includes the driving shaft rotatably arranged in the inside of the absorption tank, the outside of the driving shaft is uniformly provided with a plurality of filter plates, the top of the driving shaft extends through the absorption tank and is inserted with motor, and the bottom end of the motor is fixedly arranged in the absorption tank.

[0010] In order to achieve the effect of power transmission, the utility model provides a kind of absorption device for chloroethanol production tail gas, preferably, the transmission structure includes a driving pulley sleeved to the top end of the driving shaft, the driving pulley is connected with a driven pulley through transmission belt, and the driven pulley is sleeved to the driving cylinder.

[0011] In order to achieve the effect of uniform distribution of tail gas, the utility model provides a kind of absorption device for chloroethanol production tail gas, preferably, the inside of the absorption tank is provided with an equal distribution structure.

[0012] In order to achieve the effect that tail gas uniformly contacts the filtering structure, the utility model provides a kind of absorption device for chloroethanol production tail gas, preferably, the equal distribution structure includes a fan fixedly arranged in the inside of the absorption tank close to one end of the cleaning tank, one end of the fan extends through the cleaning tank through the fixedly arranged air inlet pipe, the other end of the fan is fixedly provided with an equal distribution pipe, the other end of the equal distribution pipe is equidistantly provided with a plurality of exhaust ports, the inside of the plurality of exhaust ports is provided with an electric valve, and the equal distribution pipe is arranged in the absorption tank through a fixed support.

[0013] In order to achieve the effect of continuous air supply and exhaust, the utility model provides a kind of absorption device for chloroethanol production tail gas, preferably, the front bottom end of the cleaning tank is provided with a tail gas inlet, and the top of one side of the absorption tank is provided with a tail gas outlet.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The absorption device for tail gas of chloroethanol production sprays lye through a plurality of rotating nozzles, and uses the impact force of the falling lye to break tail gas bubbles, solving the problem that the existing equipment guides the tail gas into a water washing tank for water washing and filtering, but the tail gas forms a large number of bubbles in the water, and the water tank cannot actively break the bubbles, so that harmful substances wrapped in the bubbles cannot be washed by water, reducing the purification effect of the equipment

[0016] The absorption device for tail gas of chloroethanol production is provided with a uniform distribution structure and a filtering structure, solving the problem that the existing equipment controls two lead screws to drive a plurality of porous plates to descend, the porous plates successively pierce a large number of bubbles generated by gas, and the bubbles are broken to make the gas fully contact and react with lye, thereby improving the reaction rate, the absorption efficiency and the effect, but the bubbles contain a large amount of gas, which will quickly float upward after being broken, resulting in incomplete contact and reaction with the lye and easy emission of harmful substances. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A preferred embodiment structure of the absorption device for tail gas of chloroethanol production is shown in the structure diagram.

[0018] Figure 2 For Figure 1 The structure diagram of the cleaning structure is shown.

[0019] Figure 3 For Figure 2 The structure diagram of the cleaning structure is shown.

[0020] Figure 4 For Figure 2 The structure diagram of the filtering structure is shown.

[0021] Figure 5 For Figure 2 The structure diagram of the uniform distribution structure is shown.

[0022] In the drawing, 1 is a cleaning tank, 2 is an absorption tank, 3 is a cleaning structure, 301 is a driving cylinder, 302 is a connecting pipe, 303 is a nozzle, 304 is a conveying pipe, 305 is a water pump, 4 is a filtering structure, 401 is a driving shaft, 402 is a filter plate, 403 is a motor, 5 is a transmission structure, 501 is a driving pulley, 502 is a driven pulley, 6 is a uniform distribution structure, 601 is a fan, 602 is an air inlet pipe, 603 is a uniform distribution pipe, 604 is an exhaust port, 7 is a tail gas inlet, and 8 is a tail gas outlet. DETAILED DESCRIPTION

[0023] The present application will be further described below in combination with the drawings and embodiments.

[0024] Please refer to Figure 1 ,Figure 2 、 Figure 3 、 Figure 4 and Figure 5 wherein, Figure 1 is a preferred embodiment of the structure of the chloroethanol production tail gas absorption device provided by the utility model; Figure 2 is Figure 1 the structure of the front view; Figure 3 is Figure 2 the structure of the cleaning structure; Figure 4 is Figure 2 the structure of the filtering structure; Figure 5 is Figure 2 the structure of the equal division structure, including the cleaning box 1, the cleaning box 1 is provided with the absorption box 2 on one side, the inside of the cleaning box 1 is provided with the cleaning structure 3, the inside of the absorption box 2 is provided with the filtering structure 4, and the filtering structure 4 is provided with the transmission structure 5 between the cleaning structure 3;

[0025] The cleaning structure 3 includes the driving cylinder 301 rotatably inserted into the top of the cleaning box 1, the connecting pipe 302 is fixedly inserted into the bottom end of the driving cylinder 301, the bottom end of the connecting pipe 302 is uniformly provided with a plurality of spray heads 303, the top end of the driving cylinder 301 is rotatably inserted into the transportation pipe 304, the transportation pipe 304 is fixed to one side of the cleaning box 1, the bottom end of the transportation pipe 304 extends through to the inside bottom end of the cleaning box 1, and the water pump machine 305 is inserted, and the water pump machine 305 is fixedly arranged in the cleaning box 1.

[0026] It should be noted that the water pump machine 305 generates suction to transport the lye in the inside of the cleaning box 1 to the inside of the connecting pipe 302, the driving cylinder 301 is driven to rotate by the transmission structure 5, so that the connecting pipe 302 follows the circumferential rotation behavior, and the plurality of spray heads 303 at the bottom of the connecting pipe 302 uniformly spray the lye, so that the gas bubbles formed by the tail gas entering the inside of the cleaning box 1 are broken, and the efficiency of the harmful substances in the cleaning tail gas is improved.

[0027] In the specific implementation process, referring to Figure 2 and Figure 4 , the filtering structure 4 includes the driving shaft 401 rotatably arranged in the inside of the absorption box 2, the outside of the driving shaft 401 is uniformly provided with a plurality of filter plates 402, the top of the driving shaft 401 extends through the absorption box 2 and is inserted into the motor 403, and the bottom end of the motor 403 is fixedly arranged in the absorption box 2.

[0028] It should be noted that the motor 403 controls the driving shaft 401 to rotate, and the plurality of filter plates 402 on the circumferential side of the driving shaft 401 pass through the tail gas in turn, adsorb and filter the harmful substances in the tail gas, and achieve the secondary filtering behavior.

[0029] In the specific implementation process, referring toFigure 3 and Figure 4 As shown in

[0030] It should be noted that the motor 403 controls the driving shaft 401 to rotate, the driving shaft 401 controls the driving pulley 501 to rotate synchronously, and then the power is transmitted to the driven pulley 502 through the transmission belt to realize the rotating spraying of the cleaning structure 3.

[0031] In the specific implementation process, referring to Figure 2 and Figure 5 As shown in

[0032] It should be noted that the fan 601 generates suction to absorb the tail gas in the cleaning box 1 to the distribution pipe 603, and then the tail gas is uniformly discharged through the electric valve and the exhaust port 604 to achieve the purpose of uniformly contacting the filter plate 402 and improve the uniformity and comprehensiveness of the filtering.

[0033] In the specific implementation process, referring to Figure 1 As shown in

[0034] The working principle of the absorption device for chloroethanol production tail gas provided by the utility model is as follows:

[0035] In use, the tail gas is added through the tail gas inlet 7, the motor 403 controls the driving shaft 401 to rotate, the driving shaft 401 controls the driving pulley 501 to rotate synchronously, then the power is transmitted to the driven pulley 502 through the transmission belt, the water pump 305 generates suction to transport the lye in the cleaning box 1 to the connecting pipe 302, the driving cylinder 301 is driven by the transmission structure 5 to rotate, so that the connecting pipe 302 rotates in a circle, the several nozzles 303 at the bottom of the connecting pipe 302 spray the lye uniformly, the bubbles formed by the tail gas entering the cleaning box 1 are broken, the fan 601 generates suction to suck the tail gas in the cleaning box 1 to the distribution pipe 603, then the tail gas is uniformly discharged through the several exhaust ports 604 under the control of the electric valve, and the several filter plates 402 around the driving shaft 401 sequentially pass through the tail gas to adsorb and filter the harmful substances in the tail gas.

[0036] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. An apparatus for absorbing off-gas from chloroethanol production, comprising a washing tank (1), characterized in that, The cleaning box (1) is provided with an absorption box (2), the cleaning box (1) is provided with a cleaning structure (3), the absorption box (2) is provided with a filter structure (4), and the filter structure (4) and the cleaning structure (3) are provided with a transmission structure (5); The cleaning structure (3) comprises a driving cylinder (301) rotatably inserted into the top of the cleaning box (1), a connecting pipe (302) is fixedly inserted into the bottom end of the driving cylinder (301), a plurality of nozzles (303) are uniformly arranged on the bottom end of the connecting pipe (302), a conveying pipe (304) is rotatably inserted into the top end of the driving cylinder (301), the conveying pipe (304) is fixed to one side of the cleaning box (1), the bottom end of the conveying pipe (304) extends through to the inside bottom end of the cleaning box (1), and a water pump machine (305) is inserted, and the water pump machine (305) is fixedly arranged on the cleaning box (1).

2. The chloroethanol production tail gas absorption device according to claim 1, characterized in that, The filter structure (4) comprises a driving shaft (401) rotatably arranged in the inside of the absorption box (2), a plurality of filter plates (402) are uniformly arranged on the outside of the driving shaft (401), the top of the driving shaft (401) extends through the absorption box (2), and a motor (403) is inserted, and the bottom end of the motor (403) is fixedly arranged on the absorption box (2).

3. The chloroethanol production tail gas absorption device according to claim 1, characterized in that, The transmission structure (5) comprises a driving pulley (501) sleeved on the outside top end of the driving shaft (401), the driving pulley (501) is connected with a driven pulley (502) through a transmission belt, and the driven pulley (502) is sleeved on the driving cylinder (301).

4. The chloroethanol production tail gas absorption device according to claim 1, characterized in that, The inside of the absorption box (2) is provided with an equal division structure (6).

5. The chloroethanol production tail gas absorption device according to claim 4, characterized in that, The equal division structure (6) comprises a fan (601) fixedly arranged on one end of the inside of the absorption box (2) close to the cleaning box (1), one end of the fan (601) extends through the cleaning box (1) through a fixedly arranged air inlet pipe (602), the other end of the fan (601) is fixedly provided with an equal division pipe (603), the other end of the equal division pipe (603) is provided with a plurality of exhaust ports (604) at equal intervals, a plurality of exhaust ports (604) are provided with electric valves in the inside, and the equal division pipe (603) is arranged on the absorption box (2) through a fixed support.

6. The chloroethanol production tail gas absorption device according to claim 1, characterized in that, The front bottom end of the cleaning box (1) is provided with a tail gas inlet (7), and the top of one side of the absorption box (2) is provided with a tail gas outlet (8).

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