Waste gas treatment device in butyl acrylate production

Abstract

The utility model discloses a butyl acrylate production waste gas treatment device which comprises a supporting seat, an activated carbon filter box is arranged at the top of the supporting seat, one side of the activated carbon filter box is in threaded connection with a box cover, and one side, corresponding to the activated carbon filter box, of the box cover is rotationally connected with a shifting rod. A first rotating motor is installed at the position, located on one side of the box cover, of one end of the material stirring rod, an air inlet pipe is installed on the side, away from the activated carbon filtering box, of the box cover, a butt joint pipe is installed on the side, away from the box cover, of the activated carbon filtering box, and one end of the butt joint pipe is in threaded connection with an air filtering assembly; the side, away from the butt joint pipe, of the gas filtering assembly is in threaded connection with a gas conveying pipe, a first sucking pump is installed in the gas conveying pipe, and the end, away from the gas filtering assembly, of the gas conveying pipe is fixedly connected with a spraying chamber. Through the design, activated carbon and hydrogen peroxide can be in full contact with chemical waste gas, the purification efficiency is improved, and the overall practicability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment device in the production of butyl acrylate. Background Art

[0002] The waste gas from the production of butyl acrylate mainly contains acrylic acid, butyl acrylate, n-butanol and other non-methane hydrocarbons, which will be emitted into the atmosphere through breathing or directly affect the human body. The production waste gas is collected and enters a two-stage spray absorption tower. The waste gas after washing with alkaline solution enters the activated carbon cotton adsorber, and the waste gas after adsorption enters the activated carbon filled hydrogen peroxide spray tower. The butyl acrylate production waste gas passes through the organic waste gas purification device and meets the emission standards.

[0003] The waste gas produced by butyl acrylate is adsorbed after contacting the activated carbon in the activated carbon cotton adsorber. However, since the surface of the activated carbon is in contact with more waste gas, the adsorption effect on the waste gas is poor after a long adsorption time. At the same time, it blocks the adsorption of the activated carbon below, resulting in a worse adsorption effect.

[0004] Therefore, it is particularly important to design a waste gas treatment device in the production of butyl acrylate to solve the above-mentioned defects. Utility Model Content

[0005] 1) Technical problems to be solved by the utility model

[0006] In view of the deficiencies of the prior art, the utility model designs a waste gas treatment device in the production of butyl acrylate, which aims to solve the technical problems of insufficient contact between activated carbon and waste gas and poor adsorption and filtration effects under the prior art.

[0007] 2) Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] The hood is provided with a filter element, and a filter element is provided on the top of the filter element.

[0010] As a preferred solution of the utility model, a plurality of groups of arc-shaped material-moving leaves are fixedly connected to the outer side of the material-moving rod.

[0011] As a preferred solution of the utility model, a dust screen is fixedly connected to the connection between the butt joint and the activated carbon filter box.

[0012] As a preferred solution of the utility model, a valve is installed on the side of the discharge pipe away from the spray chamber.

[0013] As a preferred solution of the utility model, a second rotating motor is installed at the bottom center of the spray chamber, and a spiral stirring rod is installed above the second rotating motor and inside the spray chamber.

[0014] As a preferred solution of the utility model, the circulation mechanism is composed of a water pump, a water pipe and a water distribution pipe. A water pump is installed above the discharge pipe, a water pipe is installed on the top of the water pump, and a water distribution pipe is installed on one side of the water pipe and at a position corresponding to the annular spray mechanism.

[0015] As a preferred solution of the utility model, the annular spray mechanism is composed of an annular water storage bar and a spray head, two groups of annular water storage bars are installed on the inner wall of the spray chamber, and a plurality of spray heads are installed on the inner wall of the annular water storage bar.

[0016] 3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] First, the rotating motor drives the arc-shaped material-dispensing blades to stir the activated carbon in the activated carbon filter box through the material-dispensing rod, so that the chemical waste gas is fully contacted with the activated carbon for adsorption and filtration, avoiding insufficient contact between the activated carbon and the waste gas and improving the adsorption effect;

[0019] Secondly, the vacuum pump 1 delivers the filtered waste gas to the spray chamber through the air pipe, and the rotary motor 2 drives the spiral stirring rod to stir the hydrogen peroxide stored in the spray chamber, so that the waste gas and hydrogen peroxide are fully contacted for purification, thereby improving the purification efficiency;

[0020] Finally, the circulation mechanism transports the hydrogen peroxide to the annular spray mechanism. When the second vacuum pump extracts the waste gas, the annular spray mechanism sprays and purifies the waste gas to improve the purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the waste gas treatment device for butyl acrylate production;

[0022] Figure 2 This is a schematic diagram of the internal structure of the waste gas treatment device for butyl acrylate production;

[0023] Figure 3 It is a plan view of the structure of the material-moving rod;

[0024] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0025] In the figure: 1. support base; 2. activated carbon filter box; 201. box cover; 202. material shifting rod; 2021. rotating motor 1; 2022. arc-shaped material shifting blade; 203. air inlet pipe; 204. docking pipe; 2041. dust screen; 3. air filter assembly; 301. air supply pipe; 302. vacuum pump 1; 4. spray chamber; 401. discharge pipe; 4011. valve; 402. rotating motor 2; 4021. spiral stirring rod; 5. circulation mechanism; 501. water pump; 502. water supply pipe; 503. water distribution pipe; 6. annular spray mechanism; 601. annular water storage bar; 602. spray head; 7. vacuum pump 2; 701. air outlet pipe. DETAILED DESCRIPTION

[0026] 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 them. 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. Example

[0027] The utility model provides a waste gas treatment device in the production of butyl acrylate, which is intended to solve the technical problems of insufficient contact between activated carbon and waste gas and poor adsorption and filtration effects in the prior art;

[0028] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0029] A waste gas treatment device in the production of butyl acrylate, comprising a support base 1, an activated carbon filter box 2 is arranged on the top of the support base 1, a box cover 201 is threadedly connected to one side of the activated carbon filter box 2, a material shifting rod 202 is rotatably connected to the side of the box cover 201 corresponding to the activated carbon filter box 2, one end of the material shifting rod 202 is located on one side of the box cover 201 and a rotating motor 2021 is installed, the rotating motor 2021 drives the arc-shaped material shifting blade 2022 to stir the activated carbon in the activated carbon filter box 2 through the material shifting rod 202, so that the chemical waste gas is fully in contact with the activated carbon for adsorption and filtration A plurality of groups of arc-shaped material-moving leaves 2022 are fixedly connected to the outer side of the material-moving rod 202. The arc-shaped material-moving leaves 2022 flip the activated carbon to improve the adsorption efficiency of the activated carbon. An air inlet pipe 203 is installed on the side of the box cover 201 away from the activated carbon filter box 2. The activated carbon filter box 2 introduces chemical waste gas through the air inlet pipe 203. A docking pipe 204 is installed on the side of the activated carbon filter box 2 away from the box cover 201. A dust screen 2041 is fixedly connected to the connection between the docking pipe 204 and the activated carbon filter box 2. The dust screen 2041 intercepts activated carbon particles mixed in the chemical waste gas.

[0030] Among them, see Figure 1 and Figure 2 One end of the butt joint 204 is threadedly connected with an air filter assembly 3, and the air filter assembly 3 performs secondary filtration on the chemical waste gas to improve the purification efficiency. The side of the air filter assembly 3 away from the butt joint 204 is threadedly connected with an air pipe 301, and an air pump 302 is installed inside the air pipe 301. The air pump 302 transports the filtered waste gas to the spray chamber 4 through the air pipe 301.

[0031] For further information, see Figure 1 and Figure 2 One end of the air delivery pipe 301 away from the air filter assembly 3 is fixedly connected to the spray chamber 4, and a discharge pipe 401 is fixedly connected to one side of the bottom of the spray chamber 4. The spray chamber 4 discharges and replaces the hydrogen peroxide through the discharge pipe 401. A valve 4011 is installed on the side of the discharge pipe 401 away from the spray chamber 4. The valve 4011 controls the opening and closing of the discharge pipe 401. A rotating motor 402 is installed at the bottom center of the spray chamber 4. A spiral stirring rod 4021 is installed above the rotating motor 402 and inside the spray chamber 4. The rotating motor 402 drives the spiral stirring rod 4021 to stir the hydrogen peroxide stored in the spray chamber 4, so that the exhaust gas is fully in contact with the hydrogen peroxide for purification.

[0032] For further information, see Figure 2A circulation mechanism 5 is provided above the discharge pipe 401, and the circulation mechanism 5 is composed of a water pump 501, a water pipe 502 and a water distribution pipe 503. The water pump 501 is installed above the discharge pipe 401, and the water pipe 502 is installed on the top of the water pump 501. The water distribution pipe 503 is installed on one side of the water distribution pipe 502 and at a position corresponding to the annular spray mechanism 6. The water pump 501 extracts hydrogen peroxide through the discharge pipe 401 and transports it to the water pipe 502. The water pipe 502 transports hydrogen peroxide to the annular spray mechanism 6 through the water distribution pipe 503 for recycling, so that the hydrogen peroxide and the chemical waste gas can fully react.

[0033] For further information, see Figure 1 and Figure 2 Two groups of annular spray mechanisms 6 are provided inside the spray chamber 4. The annular spray mechanisms 6 are composed of annular water storage strips 601 and spray heads 602. Two groups of annular water storage strips 601 are installed on the inner wall of the spray chamber 4. A number of spray heads 602 are installed on the inner wall of the annular water storage strips 601. The annular water storage strips 601 transport hydrogen peroxide to the spray heads 602. When the vacuum pump 27 extracts the waste gas, the spray heads 602 spray and purify the waste gas to improve the purification efficiency. A vacuum pump 27 is installed on the top of the spray chamber 4. An air outlet pipe 701 is installed on one side of the vacuum pump 27. The air outlet pipe 701 extracts the filtered chemical waste gas through the vacuum pump 27.

[0034] In addition, it should be added according to the contents of the above embodiments that the rotating motor, the air pump and the water pump 501 are all existing technologies, and their internal working principles and operating procedures will not be described in detail here.

[0035] The working process of the utility model is as follows: first, the activated carbon filter box 2 introduces chemical waste gas through the air inlet pipe 203, the rotating motor 2021 drives the arc-shaped material-pickling blade 2022 through the material-pickling rod 202 to turn and stir the activated carbon in the activated carbon filter box 2, thereby improving the adsorption efficiency of the activated carbon, so that the chemical waste gas and the activated carbon are fully contacted for adsorption and filtration, the vacuum pump 302 transmits the filtered waste gas to the spray chamber 4 through the air delivery pipe 301, the air filter component 3 performs secondary filtration on the chemical waste gas to improve the purification efficiency, and the dust screen 2041 filters the active carbon mixed in the chemical waste gas. The carbon particles are intercepted, the rotating motor 402 drives the spiral stirring rod 4021 to stir the hydrogen peroxide stored in the spray chamber 4, so that the exhaust gas is fully in contact with the hydrogen peroxide for purification, the water pump 501 extracts the hydrogen peroxide through the discharge pipe 401 and transports it to the water pipe 502, the water pipe 502 transports the hydrogen peroxide to the annular spray mechanism 6 through the water distribution pipe 503, when the vacuum pump 7 extracts the exhaust gas, the spray head 602 sprays and purifies the exhaust gas to improve the purification efficiency, and the exhaust pipe 701 extracts the filtered chemical waste gas through the vacuum pump 7.

[0036] The entire operation process is simple and convenient. Compared with the existing waste gas treatment devices, the utility model can make the activated carbon and hydrogen peroxide fully contact with the chemical waste gas through design, improve the purification efficiency, and enhance the overall practicality.

[0037] Although embodiments of the present invention have been shown and described, it will be understood 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 waste gas treatment device in the production of butyl acrylate, comprising a support base (1), characterized in that: An activated carbon filter box (2) is provided on the top of the support seat (1); a box cover (201) is threadedly connected to one side of the activated carbon filter box (2); a material shifting rod (202) is rotatably connected to the side of the box cover (201) corresponding to the activated carbon filter box (2); one end of the material shifting rod (202) is located on a side of the box cover (201) and is equipped with a rotating motor 1 (2021); an air intake pipe (203) is installed on the side of the box cover (201) away from the activated carbon filter box (2); a butt joint pipe (204) is installed on the side of the activated carbon filter box (2) away from the box cover (201); one end of the butt joint pipe (204) is threadedly connected to an air filter assembly (3), a side of the air filter assembly (3) away from the docking tube (204) is threadedly connected to an air supply pipe (301), an air pump (302) is installed inside the air supply pipe (301), an end of the air supply pipe (301) away from the air filter assembly (3) is fixedly connected to a spray chamber (4), a bottom side of the spray chamber (4) is fixedly connected to a discharge pipe (401), a circulation mechanism (5) is provided above the discharge pipe (401), two groups of annular spray mechanisms (6) are provided inside the spray chamber (4), a second air pump (7) is installed on the top of the spray chamber (4), and an air outlet pipe (701) is installed on one side of the second air pump (7).

2. The waste gas treatment device in the production of butyl acrylate according to claim 1, characterized in that: A plurality of groups of arc-shaped material-moving blades (2022) are fixedly connected to the outer side of the material-moving rod (202).

3. The waste gas treatment device in the production of butyl acrylate according to claim 1, characterized in that: A dust screen (2041) is fixedly connected to the connection between the butt joint pipe (204) and the activated carbon filter box (2).

4. The waste gas treatment device in the production of butyl acrylate according to claim 1, characterized in that: A valve (4011) is installed on the side of the discharge pipe (401) away from the spray chamber (4).

5. The waste gas treatment device in the production of butyl acrylate according to claim 1, characterized in that: A second rotating motor (402) is installed at the bottom center of the spray chamber (4), and a spiral stirring rod (4021) is installed above the second rotating motor (402) and inside the spray chamber (4).

6. The waste gas treatment device in the production of butyl acrylate according to claim 1, characterized in that: The circulation mechanism (5) is composed of a water pump (501), a water pipe (502) and a water distribution pipe (503); the water pump (501) is installed above the discharge pipe (401); the water pipe (502) is installed on the top of the water pump (501); and the water distribution pipe (503) is installed on one side of the water pipe (502) and at a position corresponding to the annular spray mechanism (6).

7. The waste gas treatment device in the production of butyl acrylate according to claim 1, characterized in that: The annular spray mechanism (6) is composed of an annular water storage strip (601) and a spray head (602); two groups of annular water storage strips (601) are installed on the inner wall of the spray chamber (4); and a plurality of spray heads (602) are installed on the inner wall of the annular water storage strip (601).

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