Waste gas purification device for chemical production workshop

Abstract

The utility model discloses a waste gas purification device for a chemical production workshop, which relates to the technical field of workshop air purification and comprises a base, a container fixedly mounted at the upper end of the base, an opening arranged at the upper end of the container, a first gas inlet pipe rotatably mounted at the bottom in the container and penetrating through the container, and a perforated plate fixedly mounted at the upper end in the container. According to the waste gas purification device for the chemical production workshop, the driving mechanism drives the movable pieces to rotate around the first gas inlet pipe, the movable pieces stir waste gas, the waste gas is evenly distributed at the lower end of the porous plate, the waste gas is evenly distributed on the porous plate, and therefore the waste gas is purified. The contact area between the waste gas and the porous solid adsorbent is increased, and the contact time is prolonged, so that the reaction efficiency between the waste gas and the purification medium is improved. Meanwhile, waste gas is prevented from forming dead angles in the container, and the residence time and accumulation of the waste gas are reduced.

Description

Technical Field

[0001] This utility model relates to the field of workshop air purification technology, and in particular to a device for purifying exhaust gas in chemical production workshops. Background Technology

[0002] The equipment used for purifying exhaust gases in chemical production workshops is a specially designed, environmentally friendly device aimed at removing dust and harmful gases from the air to reduce environmental pollution. This type of equipment uses technologies such as adsorption, absorption, catalysis, and oxidation to convert harmful substances in the exhaust gases into harmless substances, providing strong support for the sustainable development of the chemical industry.

[0003] Existing waste gas purification devices used in chemical production workshops utilize porous solid adsorbents to treat gaseous pollutants, causing one or more components to be adsorbed onto the solid surface under the influence of molecular attraction or chemical bonding. Their advantages include high adsorption efficiency and suitability for treating low-concentration organic waste gases. Their disadvantages include the need for regular adsorbent replacement and relatively high operating costs. Activated carbon is the most commonly used adsorbent and is highly effective in adsorbing and recovering organic waste gases such as benzene, ethyl acetate, and chloroform.

[0004] However, existing workshop exhaust gas purification devices suffer from uneven gas distribution within the treatment chamber during the intake process. This uneven distribution leads to excessively high exhaust gas concentrations in some areas and low concentrations in others. High-concentration areas may require longer treatment times and larger amounts of treatment agents for effective purification, while low-concentration areas may not receive sufficient treatment agents, resulting in an overall reduction in purification efficiency. Therefore, we propose an exhaust gas purification device for chemical production workshops. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a waste gas purification device for chemical production workshops, which solves the problems mentioned in the background.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a waste gas purification device for chemical production workshops, comprising: a base, a container fixedly installed on the upper end of the base, the container having an opening at the upper end, an air inlet pipe rotatably installed at the bottom of the container, the air inlet pipe penetrating the container, a porous plate fixedly installed at the upper end of the container, the container being filled with a porous solid adsorbent, and the porous solid adsorbent being placed on the porous plate.

[0007] A suction pump is fixedly installed on the base. A housing is provided on one side of the suction pump. The housing is fixed on the base and is connected to the exhaust pipe of the suction pump. The lower end of the air inlet pipe is rotatably installed on the top of the housing and is connected to the housing. Multiple strip rods arranged in a circumferential array are fixedly installed on the upper end of the air inlet pipe. Multiple movable plates are provided inside the housing. The lower ends of the movable plates are respectively fixedly connected to the strip rods. A toothed ring is sleeved and fixed on the lower end of the air inlet pipe. A drive mechanism that meshes with the toothed ring is provided on the base. The drive mechanism is used to drive the movable plates to rotate around the air inlet pipe.

[0008] As a further technical solution of this utility model, the driving mechanism includes a motor fixed on the base, and a drive wheel is fixedly installed on the output shaft end of the motor, and the drive wheel meshes with a gear ring.

[0009] As a further technical solution of this utility model, a sliding groove is provided on the box body, and a slidable filter plate is inserted in the sliding groove.

[0010] As a further technical solution of this utility model, the porous solid adsorbent is activated carbon.

[0011] As a further technical solution of this utility model, the air inlet end of the suction pump is connected to and fixedly installed with an air inlet pipe two, which is fixed on the base.

[0012] As a further technical solution of this utility model, the upper end of the second air intake pipe is fitted with a slidable movable pipe, the second air intake pipe is connected to the movable pipe, the upper end of the movable pipe is connected to and fixedly installed with an air nozzle, the air nozzle is configured to be outwardly flared, the movable pipe is fitted with side blocks, the container is provided with two rows of vertically and equally spaced limiting grooves, and also includes two limiting pins, the limiting pins pass through the side blocks and one end is inserted into the limiting groove.

[0013] This utility model provides a waste gas purification device for chemical production workshops, which has the following advantages compared with the prior art:

[0014] 1. This design provides a waste gas purification device for chemical production workshops. A drive mechanism rotates a movable plate around the inlet pipe, agitating the waste gas and distributing it evenly across the lower end of a porous plate. This increases the contact area and extends the contact time between the waste gas and the porous solid adsorbent, thereby improving the reaction efficiency between the waste gas and the purification medium. Simultaneously, the uniform waste gas distribution helps ensure that each purification unit can fully perform its purification function, avoiding insufficient or excessive purification in certain areas. Furthermore, it prevents the formation of dead zones within the container, reducing the residence time and accumulation of waste gas.

[0015] 2. This design provides a waste gas purification device for chemical production workshops. By removing the limiting pin, the movable pipe can slide freely, thereby adjusting the height of the nozzle. By adjusting the height of the nozzle, it can be ensured that the nozzle is at the same or similar height as the waste gas source, thus achieving targeted absorption of the waste gas. This design can reduce the diffusion and retention of waste gas in the workshop and improve the efficiency of waste gas absorption. When the distribution of waste gas changes, the operator can quickly adjust the height of the nozzle to adapt to the new waste gas distribution. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a waste gas purification device used in a chemical production workshop.

[0017] Figure 2 A cross-sectional view of a waste gas purification device used in a chemical production workshop;

[0018] Figure 3 This is a partial enlarged schematic diagram of a waste gas purification device used in a chemical production workshop.

[0019] In the diagram: 1. Base; 2. Container; 3. Inlet pipe 1; 4. Perforated plate; 5. Porous solid adsorbent; 6. Suction pump; 7. Box body; 8. Strip rod; 9. Movable plate; 10. Gear ring; 11. Motor; 12. Drive wheel; 13. Slide groove; 14. Filter plate; 15. Inlet pipe 2; 16. Movable pipe; 17. Nozzle; 18. Side block; 19. Limiting groove; 20. Limiting pin. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3This utility model provides a technical solution for a waste gas purification device for a chemical production workshop: A waste gas purification device for a chemical production workshop includes a base 1, a container 2 fixedly installed on the upper end of the base 1, the upper end of the container 2 is open, an air inlet pipe 3 is rotatably installed at the bottom of the container 2, the air inlet pipe 3 passes through the container 2, a porous plate 4 is fixedly installed on the upper end of the container 2, the container 2 is filled with a porous solid adsorbent 5, and the porous solid adsorbent 5 is placed on the porous plate 4. A suction pump 6 is fixedly mounted on the base 1. A housing 7 is provided on one side of the suction pump 6 and is fixed to the base 1. The housing 7 is connected to the exhaust pipe of the suction pump 6. The lower end of the air inlet pipe 3 is rotatably mounted on the top of the housing 7 and is connected to the housing 7. Multiple strip rods 8 arranged in a circular array are fixedly mounted on the upper end of the air inlet pipe 3. Multiple movable plates 9 are provided inside the housing 7. The lower ends of the movable plates 9 are fixedly connected to the strip rods 8. A gear ring 10 is sleeved and fixed on the lower end of the air inlet pipe 3. A drive mechanism that meshes with the gear ring 10 is provided on the base 1. The drive mechanism is used to drive the movable plates 9 to rotate around the air inlet pipe 3. The drive mechanism includes a motor 11 fixed on the base 1. A drive wheel 12 is fixedly mounted on the output shaft end of the motor 11 and meshes with the gear ring 10.

[0022] The device is placed in the workshop. External air is drawn into the box 7 by the suction pump 6, and then introduced into the container 2 through the air inlet pipe 3. At the same time, the motor 11 drives the drive wheel 12 to rotate, and the drive wheel 12 drives the gear ring 10 to rotate, which can make the air inlet pipe 3 rotate. The strip rod 8 and the movable plate 9 on the air inlet pipe 3 rotate. The movable plate 9 can stir the waste gas in the container 2 and make it evenly distributed at the lower end of the porous plate 4. The waste gas passes through the porous plate 4 and enters the porous solid adsorbent 5, where the waste gas is adsorbed and purified.

[0023] When the exhaust gas is agitated by the moving plate 9 and evenly distributed at the lower end of the porous plate, the contact area between the exhaust gas and the porous solid adsorbent 5 increases, and the contact time is prolonged, thereby improving the reaction efficiency between the exhaust gas and the purification medium. Simultaneously, the uniform distribution of exhaust gas helps ensure that each purification unit can fully exert its purification effect, avoiding localized insufficient or excessive purification. It also prevents the formation of dead zones within the container, reducing the residence time and accumulation of exhaust gas.

[0024] The housing 7 has a through-groove 13, into which a slidable filter plate 14 is inserted. The porous solid adsorbent 5 is activated carbon. The exhaust gas passing through the housing 7 is filtered by the filter plate 14, which removes large particles such as dust, preventing them from entering the container 2 and clogging the pores of the porous plate 4. The filter plate 14 can be removed from the groove 13, allowing for periodic removal and surface cleaning.

[0025] The suction pump 6 has an air inlet pipe 15 connected to and fixedly installed at its air inlet end, which is fixed to the base 1. A slidable movable pipe 16 is fitted onto the upper end of the air inlet pipe 15, and the air inlet pipe 15 is connected to the movable pipe 16. An air nozzle 17 is connected to and fixedly installed at the upper end of the movable pipe 16. The air nozzle 17 is flared outwards. Side blocks 18 are fixedly installed on both sides of the movable pipe 16. The container 2 has two rows of equidistant vertically spaced limiting grooves 19, and also includes two limiting pins 20. The limiting pins 20 pass through the side blocks 18 and one end is inserted into the limiting grooves 19.

[0026] When the suction pump 6 is working, the exhaust gas in the workshop enters the movable pipe 16 through the air nozzle 17, and then passes through the movable pipe 16 and the second air inlet pipe 15. By removing the limiting pin 20, the movable pipe 16 can slide freely, thereby adjusting the height of the air nozzle 17. Considering that different exhaust gases are distributed at different heights in the workshop, when the exhaust gases are distributed in different locations, the height of the air nozzle 17 can be adjusted to be at the same height as the exhaust gases, thereby effectively and quickly absorbing the exhaust gases in the workshop. Then, by passing through the side block 18 and inserting one end of the limiting pin 20 into the limiting groove 19, the height of the side block 18, the movable pipe 16, and the air nozzle 17 can be fixed.

[0027] By adjusting the height of the nozzle 17, it can be ensured that the nozzle 17 is at the same or similar height as the exhaust gas source, thereby achieving targeted absorption of the exhaust gas. This design can reduce the diffusion and retention of exhaust gas in the workshop and improve the efficiency of exhaust gas absorption. When the exhaust gas distribution changes, the operator can quickly adjust the height of the nozzle 17 to adapt to the new exhaust gas distribution.

[0028] The working principle of this utility model is as follows: The device is placed in the workshop, and the external air is drawn into the box 7 by the suction pump 6. Then, the air is introduced into the container 2 through the air inlet pipe 3. At the same time, the motor 11 drives the drive wheel 12 to rotate, and the drive wheel 12 drives the gear ring 10 to rotate, which can make the air inlet pipe 3 rotate. The strip rod 8 and the movable plate 9 on the air inlet pipe 3 rotate. The movable plate 9 can stir the waste gas in the container 2 and make it evenly distributed at the lower end of the porous plate 4. The waste gas passes through the porous plate 4 and enters the porous solid adsorbent 5. The porous solid adsorbent 5 adsorbs and purifies the waste gas.

[0029] The exhaust gas passing through housing 7 is filtered by filter plate 14, which filters out large particles such as dust from the exhaust gas, preventing them from entering container 2 and clogging the pores on the perforated plate 4. When suction pump 6 is working, the exhaust gas in the workshop enters the movable pipe 16 through nozzle 17, and then through the movable pipe 16 and the second air inlet pipe 15. By removing the limiting pin 20, the movable pipe 16 can be slid freely, thereby adjusting the height of nozzle 17. Considering that different exhaust gases are distributed at different heights in the workshop, when the exhaust gases are distributed in different locations, the height of nozzle 17 is adjusted to be at the same height as the exhaust gases.

[0030] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. An apparatus for purifying exhaust gas from a chemical production plant, characterized by, The utility model provides a kind of air purifier, including base (1), the container (2) is fixedly installed on the upper end of base (1), the container (2) is provided with opening in upper end, the air inlet pipe one (3) is rotatably installed in the inner bottom of container (2), the air inlet pipe one (3) penetrates container (2), the porous plate (4) is fixedly installed in the inner upper end of container (2), the porous solid adsorbent (5) is filled in container (2), and the porous solid adsorbent (5) is placed on porous plate (4); The base (1) is fixedly installed with suction pump (6), one side of the suction pump (6) is equipped with box (7), the box (7) is fixed on the base (1), the box (7) is communicated with the exhaust pipe of suction pump (6), the air inlet pipe one (3) lower end rotatably installed in the top of box (7) and is communicated with box (7), the air inlet pipe one (3) upper end is fixedly installed with a plurality of strip bars (8) that are circumferentially arrayed, the box (7) is equipped with multiple movable pieces (9), the movable pieces (9) lower end are fixedly connected on strip bar (8) respectively, the air inlet pipe one (3) lower end is equipped with ring gear (10) and is fixed, the base (1) is provided with the drive mechanism that is engaged with ring gear (10), and the drive mechanism is used to drive movable piece (9) to rotate around air inlet pipe one (3).

2. A device for purifying exhaust gas from a chemical production plant according to claim 1, characterized in that The drive mechanism includes motor (11) fixed on the base (1), the motor (11) output shaft end is fixedly installed with driving wheel (12), and the driving wheel (12) is engaged with ring gear (10).

3. A device for purifying exhaust gas from a chemical production plant according to claim 2, characterized in that The box (7) is provided with chute (13) penetrating the box (7), and the filter plate (14) is slidably inserted in the chute (13).

4. The apparatus for purifying exhaust gas of a chemical production plant according to claim 1, wherein The porous solid adsorbent (5) is activated carbon.

5. The apparatus for purifying exhaust gas of a chemical production plant according to claim 1, wherein The suction pump (6) is fixedly installed with air inlet pipe two (15) in the air inlet end, and the air inlet pipe two (15) is fixed on the base (1).

6. A device for purifying exhaust gas from a chemical production plant according to claim 5, characterized in that The air inlet pipe two (15) upper end is equipped with slidable movable pipe (16), and the air inlet pipe two (15) is communicated with movable pipe (16), and the movable pipe (16) upper end is fixedly installed with air nozzle (17), and the air nozzle (17) is arranged as outward expansion, and the movable pipe (16) both sides are fixedly installed with side block (18), the container (2) is provided with two rows of limit grooves (19) that are vertically equidistantly distributed, and further includes two limit pins (20), the limit pin (20) penetrates side block (18) and one end is inserted into limit groove (19).

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