2-chloroethanol production waste gas recovery device

Abstract

The utility model discloses a 2-chloroethanol production waste gas recovery device which comprises a recovery tower, a dehydrator is arranged on one side of the recovery tower, an ethanol evaporator is arranged between the dehydrator and the recovery tower, and a container is arranged on the other side of the recovery tower; the sealing and stabilizing part comprises a cover body detachably connected with the container, a fixing column arranged at the bottom of the cover body and a sealing cylinder arranged at the bottom of the cover body and arranged on the outer side of the fixing column in a sleeving mode, and when the container is covered with the cover body, the sealing cylinder is attached to the inner wall of the container; a fixing block is arranged at the bottom of the cover body, a fixing groove is formed in the top of the container, a protective sleeve is installed on the inner wall of the fixing groove, and the fixing block is inserted into the fixing groove along the protective sleeve; the sealing device has the beneficial effects that the sealing performance of the cover body covering the container is improved and the volatilization of ethanol is reduced by utilizing the matching of the fixed column and the sealing cylinder through the designed sealing stabilizing component.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas recovery, and particularly relates to a recovery device for waste gas generated in the production of 2-chloroethanol. Background Art

[0002] The waste gas generated in the production process of 2-chloroethanol may contain harmful substances such as dichloroethane and chlorine gas. If these substances are directly discharged into the atmosphere, they will pollute the environment, affect air quality, and may even cause environmental problems such as photochemical smog; the harmful substances in the waste gas may also enter water bodies and soil through precipitation and other means, causing long-term adverse effects on the ecosystem.

[0003] The organic waste gas recovery device using ethanol vapor to assist in semiconductor / panel production with the publication number of CN203425677U. This patent discloses a device including a water separator, an ethanol evaporator, a recovery tower, and an ethanol absorption device. The recovery tower is sequentially provided with a demisting layer, an absorbent spraying device, an absorption layer, and a recovery tank from top to bottom. The inlet of the water separator is the organic waste gas inlet. The outlet of the water separator and the outlet of the ethanol evaporator are both connected to the absorption layer. The gas outlet at the upper part of the recovery tower is connected to the ethanol absorption device. The bottom of the recovery tank is connected to a discharge pipe, and a valve is installed on the discharge pipe.

[0004] When the existing waste gas recovery device is in use, the absorption substance stored in the container of the ethanol absorption device needs to be replenished regularly. Due to the lack of sealing and stabilizing components, it is not conducive to increasing the sealing performance, resulting in the volatilization of ethanol from the container. Content of the Utility Model

[0005] The purpose of the utility model is to provide a recovery device for waste gas generated in the production of 2-chloroethanol. By adding sealing and stabilizing components, the sealing performance can be increased, and the volatilization of ethanol can be reduced.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A recovery device for waste gas generated in the production of 2-chloroethanol, including

[0007] A recovery tower, a water separator is arranged on one side of the recovery tower, and an ethanol evaporator is arranged between the water separator and the recovery tower. A container is arranged on the other side of the recovery tower;

[0008] Sealing and stabilizing components, the sealing and stabilizing components include a cover body detachably connected to the container, a fixing column arranged at the bottom of the cover body, and a sealing cylinder arranged at the bottom of the cover body and sleeved outside the fixing column. When the cover body covers the container, the sealing cylinder fits against the inner wall of the container.

[0009] Preferably, a fixing block is provided at the bottom of the cover body, a fixing groove is formed at the top of the container, and a sheath is installed on the inner wall of the fixing groove, and the fixing block is inserted into the fixing groove along the sheath.

[0010] Preferably, symmetrically distributed support columns are installed at the top of the recovery tower, and a protective cover is provided at the top of the support columns.

[0011] Preferably, a pipeline communicating with the inside of the container is provided on the recovery tower, and a demisting layer, an absorbent spraying device, an absorption layer and a recovery tank are sequentially arranged in the recovery tower from top to bottom.

[0012] Preferably, a discharge pipe communicating with the inside of the recovery tower is provided on the recovery tower, a drainage pipe communicating with the absorbent spraying device is provided at the lower part of the recovery tank, and pipelines communicating with the absorption layer are provided at the outlets of the water separator and the ethanol evaporator.

[0013] Preferably, it further includes a reinforcement member, a circulation pump provided on the reinforcement member, and the drainage pipe is connected to the circulation pump.

[0014] Preferably, the reinforcement member includes a reinforcement rod provided on the outer wall of the recovery tower and a reinforcement plate provided at one end of the reinforcement rod and connected to the circulation pump.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] Through the designed sealing and stabilizing member, by using the cooperation of the fixing column and the sealing cylinder, the sealing performance of the cover body covering the container is increased, and the volatilization of ethanol is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic diagram of the splicing structure of the container and the cover body of the present utility model;

[0019] Figure 3 is the Figure 2 magnified schematic structural diagram of the F area in the present utility model;

[0020] Figure 4 is a schematic three-dimensional structural diagram of the reinforcement member of the present utility model;

[0021] In the figure: 1. Recovery tower; 11. Support column; 12. Discharge pipe; 2. Protective cover; 3. Water separator; 4. Ethanol evaporator; 5. Drainage pipe; 6. Circulation pump; 7. Reinforcement rod; 71. Reinforcement plate; 8. Container; 81. Fixing groove; 810. Sheath; 9. Cover body; 91. Handle; 92. Fixing column; 920. Sealing cylinder; 93. Fixing block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1

[0024] Please refer to Figures 1 - 3 , which is the first embodiment of the present utility model. This embodiment provides a recovery device for the waste gas generated in the production of 2-chloroethanol, including

[0025] A recovery tower 1. A water remover 3 is arranged on one side of the recovery tower 1. The water remover 3 removes the water vapor in the steam. An ethanol evaporator 4 is arranged between the water remover 3 and the recovery tower 1. The ethanol evaporator 4 provides ethanol gas to promote the ethanol gas in the organic waste gas to reach a saturated or supersaturated state. A container 8 is arranged on the other side of the recovery tower 1. The gas after condensation treatment is introduced into the container 8 filled with silicone oil and water to absorb the ethanol gas in the tail gas. Among them, water is used to absorb ethanol, and silicone oil is distributed on the upper layer because it is insoluble in water and ethanol and has a low density, playing a role of liquid seal to reduce the volatilization of ethanol gas.

[0026] A sealing and stabilizing component. The sealing and stabilizing component includes a cover body 9 detachably connected to the container 8, a fixing column 92 arranged at the bottom of the cover body 9, realizing the addition of the fixing column 92, and a sealing cylinder 920 arranged at the bottom of the cover body 9 and sleeved outside the fixing column 92. The sealing cylinder 920 is made of rubber material, realizing the addition of the sealing cylinder 920. When the cover body 9 is covered on the container 8, the sealing cylinder 920 fits on the inner wall of the container 8. By the cooperation of the fixing column 92 and the sealing cylinder 920, the sealing performance of the cover body 9 covered on the container 8 is increased. A handle 91 is installed on the top of the cover body 9 to facilitate the removal of the cover body 9 through the handle 91.

[0027] In this embodiment, preferably, a fixing block 93 is arranged at the bottom of the cover body 9, realizing the addition of the fixing block 93. A fixing groove 81 is opened at the top of the container 8, realizing the opening of the fixing groove 81. A sheath 810 is installed on the inner wall of the fixing groove 81, realizing the addition of the sheath 810. The fixing block 93 is inserted into the inside of the fixing groove 81 along the sheath 810. By the cooperation of the fixing block 93, the fixing groove 81, and the sheath 810, the splicing performance of the cover body 9 and the container 8 is increased.

[0028] In this embodiment, preferably, symmetrically distributed support columns 11 are installed at the top of the recovery tower 1, realizing the addition of the support columns 11, and a protective cover 2 is provided at the top of the support columns 11. The support columns 11 increase the support for the protective cover 2.

[0029] In this embodiment, preferably, a pipeline communicating with the inside of the container 8 is provided on the recovery tower 1, and a demisting layer, an absorbent spraying device, an absorption layer, and a recovery tank are sequentially arranged in the recovery tower 1 from top to bottom, realizing the addition of the demisting layer, the absorbent spraying device, the absorption layer, and the recovery tank. The demisting layer is used for demisting to recover organic solvents; the recovery tank is used for recovering the condensed organic solvents above.

[0030] In this embodiment, preferably, a discharge pipe 12 communicating with the inside of the recovery tower 1 is provided on the recovery tower 1, and the absorbent can be discharged through the discharge pipe 12. A drainage pipe 5 communicating with the absorbent spraying device is provided at the lower part of the recovery tank, realizing the addition of the drainage pipe 5. Pipes communicating with the absorption layer are provided at the outlets of the water separator 3 and the ethanol evaporator 4.

[0031] Embodiment 2

[0032] Please refer to Figures 1 - 4 , which is the second embodiment of the present utility model. This embodiment is based on the previous embodiment. The difference is:

[0033] It further includes a reinforcement member, a circulation pump 6 provided on the reinforcement member, the drainage pipe 5 is connected to the circulation pump 6, and the circulation pump 6 is used to transport the liquid in the recovery tank to the absorbent spraying device; the reinforcement member includes a reinforcement rod 7 provided on the outer wall of the recovery tower 1, realizing the addition of the reinforcement rod 7, a reinforcement plate 71 provided at one end of the reinforcement rod 7 and connected to the circulation pump 6. The reinforcement rod 7 increases the limitation on the reinforcement plate 71, and by splicing the reinforcement plate 71 and the circulation pump 6, the installation stability of the circulation pump 6 is further increased.

[0034] The working principle and usage process of the present utility model: The organic waste gas first passes through the water separator 3 to remove the water vapor therein, and then is mixed with the ethanol vapor provided by the ethanol evaporator 4 to make the ethanol vapor in the waste gas reach saturation or supersaturation. The absorbent spraying device sprays the absorbent to cool the waste gas, making the ethanol in the waste gas further saturated and supersaturated. In the absorption layer, the ethanol vapor, the absorbent, and the organic waste gas are fully mass-transferred. The supersaturated ethanol vapor condenses into nuclei, promoting the condensation and absorption of the organic waste gas. The condensate enters the recovery tank; the demisting layer is used for demisting to further recover organic solvents, and the treated gas enters the container 8 for removing ethanol.

[0035] Although embodiments of the present utility model have been shown and described, see the above detailed description, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A recovery device for the waste gas produced in the production of 2-chloroethanol, characterized in that: including a recovery tower (1), a water remover (3) is arranged on one side of the recovery tower (1), and an ethanol evaporator (4) is arranged between the water remover (3) and the recovery tower (1), and a container (8) is arranged on the other side of the recovery tower (1); a sealing and stabilizing component, the sealing and stabilizing component includes a cover body (9) detachably connected to the container (8), a fixing column (92) arranged at the bottom of the cover body (9), and a sealing cylinder (920) arranged at the bottom of the cover body (9) and sleeved outside the fixing column (92). When the cover body (9) is covered on the container (8), the sealing cylinder (920) fits against the inner wall of the container (8).

2. The recovery device for waste gas in the production of 2-chloroethanol according to claim 1, wherein: A fixing block (93) is arranged at the bottom of the cover body (9), a fixing groove (81) is formed at the top of the container (8), and a sheath (810) is installed on the inner wall of the fixing groove (81). The fixing block (93) is inserted into the inside of the fixing groove (81) along the sheath (810).

3. The recovery device for waste gas in the production of 2-chloroethanol according to claim 1, characterized in that: Symmetrically distributed support columns (11) are installed at the top of the recovery tower (1), and a protective cover (2) is arranged at the top of the support columns (11).

4. The recovery device for waste gas in the production of 2-chloroethanol according to claim 1, characterized in that: A pipeline communicating with the inside of the container (8) is arranged on the recovery tower (1), and a demisting layer, an absorbent sprayer, an absorption layer and a recovery tank are sequentially arranged in the recovery tower (1) from top to bottom.

5. The recovery device for the waste gas in the production of 2-chloroethanol according to claim 4, characterized in that: A discharge pipe (12) communicating with the inside of the recovery tower (1) is arranged on the recovery tower (1), a drainage pipe (5) communicating with the absorbent sprayer is arranged at the lower part of the recovery tank, and pipelines communicating with the absorption layer are arranged at the outlets of the water remover (3) and the ethanol evaporator (4).

6. The recovery device for the waste gas from the production of 2-chloroethanol according to claim 5, wherein: It further includes a reinforcement component, a circulation pump (6) arranged on the reinforcement component, and the drainage pipe (5) is connected to the circulation pump (6).

7. The recovery device for waste gas in the production of 2-chloroethanol according to claim 6, wherein: The reinforcement component includes a reinforcement rod (7) arranged on the outer wall of the recovery tower (1), and a reinforcement plate (71) arranged at one end of the reinforcement rod (7) and connected to the circulation pump (6).

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