Exhaust gas purification apparatus for metal heat treatment

Abstract

The utility model relates to air purification equipment technical field, and disclose a kind of waste gas purification equipment for metal heat treatment, the waste gas purification equipment for metal heat treatment, including reaction tank, the cam of the arc surface of the reaction tank is fixedly installed with exhaust fan, the arc surface of the reaction tank is fixedly connected with pump body by connecting pipe, the lower surface of the pump body is fixedly installed with water tank.The waste gas purification equipment for metal heat treatment, motor starts to drive cam periodic rotation on the shaft, cam contact arc block makes filter screen plate along with limit block to move up and down, promote filter screen plate to shake off the impurity of jam, while reset spring deformation, corrugated hose protects reset spring to reduce the influence of external impurities on reset spring, while filter screen plate resets due to gravity, reset spring will shake, enhance the shake of filter screen plate moving up and down, promote filter screen plate to shake off the impurity of jam, guarantee the use efficiency of filter screen plate.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment technology, specifically to a waste gas purification device for metal heat treatment. Background Technology

[0002] However, the pollution caused by waste gas from metal heat treatment is becoming increasingly prominent. During the heat treatment process, the huge amount of waste gas generated when the high-temperature workpiece enters the cooling medium not only causes significant air pollution, but also poses a health risk to workers due to the presence of nitrogen monoxide, nitrogen dioxide, sulfur dioxide, water, and small amounts of carbon particles in the waste gas. Therefore, it is necessary to purify the waste gas generated from metal heat treatment before discharging it.

[0003] According to a public notice regarding a waste gas purification device for metal heat treatment (Announcement No.: CN221310138U), the aforementioned application uses a spraying device to spray alkaline or acidic solutions to neutralize the waste gas, thereby filtering out toxic substances and also filtering out some dust in the waste gas.

[0004] However, in actual use, when the above-mentioned equipment is set up to filter large impurities, the sprayed water causes some impurities to adhere to the mesh of the filter screen, making it troublesome to replace the filter screen frequently, thus affecting the efficiency of the filter screen. In view of this, we propose a waste gas purification device for metal heat treatment. Utility Model Content

[0005] The purpose of this invention is to provide a waste gas purification device for metal heat treatment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waste gas purification device for metal heat treatment, comprising a reaction vessel, an exhaust fan fixedly installed on the arc surface of the reaction vessel, a pump body fixedly connected to the arc surface of the reaction vessel via a connecting pipe, a water tank fixedly installed on the lower surface of the pump body, a filter screen plate fixedly connected to the inner wall of the reaction vessel, a spray ring pipe fixedly installed on the inner wall of the reaction vessel, an activated carbon filter screen fixedly installed on the inner wall of the reaction vessel, an anti-clogging mechanism provided inside the reaction vessel, and an auxiliary mechanism provided inside the reaction vessel. The anti-clogging mechanism includes: The motor is fixedly mounted on the arc surface of the reaction vessel, and a rotating shaft is fixedly mounted on the output end of the motor. A cam is fixedly mounted on the arc surface of the rotating shaft, and an arc block is fixedly mounted on the lower surface of the filter screen. A limiting block is fixedly installed on the inner wall of the reaction vessel, a corrugated hose is fixedly installed on the surface of the limiting block, and a return spring is fixedly connected to the surface of the limiting block.

[0007] Preferably, the auxiliary mechanism includes a cylinder, which is fixedly installed on the upper surface of the filter screen plate, and a weight ball is disposed inside the cylinder.

[0008] Preferably, the diameter of the weighted ball is smaller than the inner diameter of the cylinder, and the number of weighted balls is set to several, so that the weighted balls will vibrate when they move with the filter screen, thereby promoting the tapping effect on the filter screen.

[0009] Preferably, the limiting block consists of a round rod and two fixing blocks, and the fixing blocks are fixedly installed on the inner wall of the reaction vessel. The limiting block penetrates the filter screen plate, thereby allowing the filter screen plate to move up and down along the limiting block.

[0010] Preferably, the cam and the arc block are on the same vertical plane, so that when the cam rotates, it will squeeze the arc block, thereby driving the filter screen to move up and down.

[0011] Preferably, the reset spring and the corrugated hose are located on the lower surface of the filter screen plate, and the side of the reset spring and the corrugated hose away from the lower end of the limiting block is fixedly installed on the lower surface of the filter screen plate.

[0012] Preferably, the number of limiting blocks is set to several, and the several limiting blocks are evenly arranged in a circular array on the surface of the filter screen plate, thereby ensuring the overall stability when the filter screen plate moves.

[0013] Compared with the prior art, this utility model provides a waste gas purification device for metal heat treatment, which has the following beneficial effects:

[0014] 1. This waste gas purification equipment for metal heat treatment is equipped with an anti-clogging mechanism. When the motor starts, it drives the cam on the rotating shaft to rotate periodically. The cam contacts the arc block, causing the filter screen to move up and down along the limit block, which promotes the filter screen to shake off the clogging impurities. At the same time, the return spring deforms, and the corrugated hose protects the return spring to reduce the impact of external impurities on the return spring. When the filter screen returns to its original position due to gravity, the return spring will vibrate, which enhances the vibration of the filter screen as it moves up and down, further promoting the removal of clogging impurities and ensuring the efficiency of the filter screen.

[0015] 2. This waste gas purification equipment for metal heat treatment is equipped with an auxiliary mechanism that causes several heavy balls to vibrate as they move with the filter screen. The heavy balls fall due to gravity and strike the upper surface of the filter screen. The multiple dispersed cylinders further enhance the striking effect on the surface of the filter screen, promote the removal of impurities, and ensure the efficiency of the filter screen. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a partial cross-sectional schematic diagram of the reaction vessel structure of this utility model;

[0018] Figure 3 This is a partial schematic diagram of the rotating shaft of this utility model;

[0019] Figure 4 This is a partial explosion diagram of the structural limiting block of this utility model;

[0020] Figure 5 This is a partial explosion diagram of the cylindrical structure of this utility model.

[0021] In the diagram: 1. Reaction vessel; 2. Exhaust fan; 3. Anti-clogging mechanism; 301. Motor; 302. Rotating shaft; 303. Cam; 304. Arc block; 305. Limiting block; 306. Corrugated hose; 307. Return spring; 4. Auxiliary mechanism; 401. Cylinder; 402. Weight ball; 5. Water tank; 6. Pump body; 7. Spray ring pipe; 8. Filter screen; 9. Activated carbon filter. Detailed Implementation

[0022] like Figures 1-5 As shown, this utility model provides a technical solution: a waste gas purification device for metal heat treatment, including a reaction tank 1, an exhaust fan 2 fixedly installed on the arc surface of the reaction tank 1, a pump body 6 fixedly connected to the arc surface of the reaction tank 1 through a connecting pipe, a water tank 5 fixedly installed on the lower surface of the pump body 6, a filter screen plate 8 fixedly connected to the inner wall of the reaction tank 1, a spray ring pipe 7 fixedly installed on the inner wall of the reaction tank 1, an activated carbon filter screen 9 fixedly installed on the inner wall of the reaction tank 1, an anti-clogging mechanism 3 inside the reaction tank 1, and an auxiliary mechanism 4 inside the reaction tank 1. The anti-clogging mechanism 3 includes a motor 301, a rotating shaft 302, a cam 303, an arc block 304, a limit block 305, a corrugated hose 306, and a return spring 307.

[0023] In one embodiment of this utility model, a motor 301 is fixedly installed on the arc surface of the reaction vessel 1, a rotating shaft 302 is fixedly installed at the output end of the motor 301, a cam 303 is fixedly installed on the arc surface of the rotating shaft 302, an arc block 304 is fixedly installed on the lower surface of the filter screen plate 8, a limiting block 305 is fixedly installed on the inner wall of the reaction vessel 1, a corrugated hose 306 is fixedly installed on the surface of the limiting block 305, and a return spring 307 is fixedly connected to the surface of the limiting block 305.

[0024] In addition, the auxiliary mechanism 4 includes a cylinder 401, which is fixedly installed on the upper surface of the filter screen plate 8. A weighted ball 402 is disposed inside the cylinder 401. The diameter of the weighted ball 402 is smaller than the inner diameter of the cylinder 401, and several weighted balls 402 are provided so that the weighted balls 402 will vibrate when they move with the filter screen plate 8, thereby promoting the tapping effect on the filter screen plate 8.

[0025] In this embodiment of the invention, the limiting block 305 consists of a round rod and two fixed blocks, with the fixed blocks fixedly installed on the inner wall of the reaction vessel 1. The limiting block 305 penetrates the filter screen plate 8, allowing the filter screen plate 8 to move up and down along the limiting block 305. The cam 303 and the arc block 304 are on the same vertical plane. When the cam 303 rotates, it will squeeze the arc block 304, thereby driving the filter screen plate 8 to move up and down. At the same time, the lower end of the cam 303 contacts the arc block 304, squeezing the filter screen plate 8 to move. The upper end of the cam 303 will have a certain gap from the filter screen plate 8 to facilitate the vibration of the return spring 307. The return spring 307 and the corrugated hose 306 are located on the lower surface of the filter screen plate 8, and the side of the return spring 307 and the corrugated hose 306 away from the lower end of the limiting block 305 is fixedly installed on the lower surface of the filter screen plate 8. Several limit blocks 305 are arranged in a circular array on the surface of the filter plate 8 to ensure the overall stability of the filter plate 8 when it moves. The end of the pump body 6 away from the water tank 5 is connected to the spray ring pipe 7 through the through hole of the connecting pipe. The connecting pipe on the pump body 6 is inserted into the inner wall of the bottom of the water tank 5 to facilitate the pump body 6 to draw and neutralize the air from the inside of the water tank 5 and spray it out from the spray ring pipe 7 to neutralize impurities in the air. The end of the rotating shaft 302 away from the motor 301 is rotatably connected to the inner wall of the reaction tank 1. The lower end of the reaction tank 1 is provided with a discharge pipe for discharging the neutralized solution. An exhaust pipe is fixedly installed on the upper surface of the reaction tank 1. The exhaust fan 2 draws out the exhaust gas. The exhaust gas passes through the filter plate 8, and the pump body 6 draws and neutralizes the air from the inside of the water tank 5 and sprays it out from the spray ring pipe 7 to neutralize impurities in the air. The treated air passes through the activated carbon filter 9 and is discharged from the top.

[0026] In this invention, during use, the motor 301 starts and drives the cam 303 on the rotating shaft 302 to rotate periodically. The cam 303 contacts the arc block 304, causing the filter screen plate 8 to move up and down along the limit block 305, which promotes the filter screen plate 8 to shake off the blockage impurities. At the same time, the reset spring 307 deforms, and the corrugated hose 306 protects the reset spring 307 to reduce the influence of external impurities on the reset spring 307. At the same time, when the filter screen plate 8 resets due to gravity, the reset spring 307 will be unstable and vibrate, which enhances the vibration of the filter screen plate 8 moving up and down, promotes the filter screen plate 8 to shake off the blockage impurities, and ensures the efficiency of the filter screen plate 8.

[0027] Furthermore, the weighted balls 402 vibrate as they move with the filter screen plate 8, causing them to fall and strike the upper surface of the filter screen plate 8 due to gravity. The multiple dispersed cylinders 401 further enhance the striking effect on the surface of the filter screen plate 8, promote the falling off of impurities, and ensure the efficiency of the filter screen plate 8.

[0028] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A waste gas purification device for metal heat treatment, comprising a reaction tank (1), wherein an exhaust fan (2) is fixedly installed on the arc surface of the reaction tank (1), a pump body (6) is fixedly connected to the arc surface of the reaction tank (1) via a connecting pipe, a water tank (5) is fixedly installed on the lower surface of the pump body (6), a filter screen plate (8) is fixedly connected to the inner wall of the reaction tank (1), a spray ring pipe (7) is fixedly installed on the inner wall of the reaction tank (1), and an activated carbon filter screen (9) is fixedly installed on the inner wall of the reaction tank (1), characterized in that: The reaction vessel (1) is equipped with an anti-clogging mechanism (3) and an auxiliary mechanism (4). The anti-clogging mechanism (3) includes: The motor (301) is fixedly installed on the arc surface of the reaction vessel (1). The output end of the motor (301) is fixedly installed with a rotating shaft (302). The arc surface of the rotating shaft (302) is fixedly installed with a cam (303). The lower surface of the filter screen plate (8) is fixedly installed with an arc block (304). A limiting block (305) is fixedly installed on the inner wall of the reaction vessel (1). A corrugated hose (306) is fixedly installed on the surface of the limiting block (305). A reset spring (307) is fixedly connected to the surface of the limiting block (305).

2. The waste gas purification equipment for metal heat treatment according to claim 1, characterized in that: The auxiliary mechanism (4) includes a cylinder (401), which is fixedly installed on the upper surface of the filter screen plate (8), and a weight ball (402) is provided inside the cylinder (401).

3. The waste gas purification equipment for metal heat treatment according to claim 2, characterized in that: The diameter of the weighted ball (402) is smaller than the inner diameter of the cylinder (401), and the number of weighted balls (402) is set to several.

4. The waste gas purification equipment for metal heat treatment according to claim 1, characterized in that: The limiting block (305) consists of a round rod and two fixing blocks, and the fixing blocks are fixedly installed on the inner wall of the reaction vessel (1). The limiting block (305) penetrates the filter screen (8).

5. The waste gas purification equipment for metal heat treatment according to claim 1, characterized in that: The cam (303) and the arc block (304) are on the same vertical plane.

6. The waste gas purification equipment for metal heat treatment according to claim 1, characterized in that: The reset spring (307) and the corrugated hose (306) are located on the lower surface of the filter screen plate (8), and the side of the reset spring (307) and the corrugated hose (306) away from the lower end of the limiting block (305) is fixedly installed on the lower surface of the filter screen plate (8).

7. The waste gas purification equipment for metal heat treatment according to claim 1, characterized in that: The number of the limiting blocks (305) is set to several, and the several limiting blocks (305) are evenly arranged in a circular array on the surface of the filter plate (8).

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