Injection molding waste gas treatment device

Abstract

The utility model discloses an injection molding waste gas treatment device, and relates to the technical field of injection molding waste gas treatment, the injection molding waste gas treatment device comprises a treatment box, the left side of the treatment box is provided with a waste gas conveying pipe, the right side of the treatment box is provided with an air suction pipe, and the right side of the air suction pipe is provided with an induced draft fan; an exhaust pipe is installed on the upper portion of the right side of the induced draft fan, a chimney is installed on the right side of the exhaust pipe, three groups of light oxygen purification devices are installed in the treatment box, each light oxygen purification device comprises an ultraviolet lamp tube and a photocatalyst filter screen, the ultraviolet lamp tubes are installed on the inner top of the treatment box, and the photocatalyst filter screens are installed on the inner top of the treatment box. According to the scheme, the problems that in the using process of an existing injection molding waste gas treatment device, the contact area between activated carbon and harmful gas is too small, the gas purification effect is prone to being poor, and the ideal treatment effect is often difficult to achieve by adopting a single purification technology are solved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding waste gas treatment technology, specifically to an injection molding waste gas treatment device. Background Technology

[0002] In the processing of plastic products, raw materials need to be placed in the feeding port and sucked into the injection molding machine hopper through the injection molding machine pipe. The raw materials are then heated to about 200°C by the injection molding machine to melt and be injected into the mold to form the product. During the heating and molding process, injection molding waste gas is generated. The unorganized emission of injection molding waste gas will pollute the environment and affect human health.

[0003] As indicated by announcement number CN218980991U, an injection molding waste gas treatment device is described. This device includes a treatment box, which is provided with an air inlet and an air outlet. An activated carbon adsorption plate is installed inside the treatment box. A drive shaft is installed inside the treatment box and is rotatably connected to the treatment box. A cleaning brush for cleaning plastic particles from the inner wall of the treatment box is provided on the end of the drive shaft near the air inlet. A first drive assembly for driving the drive shaft to rotate is installed inside the treatment box.

[0004] The above-mentioned devices have too small a contact area between activated carbon and harmful gases during use, which easily leads to poor gas purification effect. Using a single purification technology is often difficult to achieve the ideal treatment effect. Therefore, we propose an injection molding waste gas treatment device to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide an injection molding waste gas treatment device to solve the problem mentioned in the background art that the contact area between activated carbon and harmful gases in the existing injection molding waste gas treatment devices is too small during use, which easily leads to poor gas purification effect, and it is often difficult to achieve the ideal treatment effect by using a single purification technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an injection molding waste gas treatment device, comprising a treatment box, a waste gas conveying pipe installed on the left side of the treatment box, a suction pipe installed on the right side of the treatment box, an induced draft fan installed on the right side of the suction pipe, an exhaust pipe installed at the upper part of the right side of the induced draft fan, a chimney installed on the right side of the exhaust pipe, three sets of photo-oxidation purification devices installed inside the treatment box, each photo-oxidation purification device comprising an ultraviolet lamp and a photocatalytic filter, the ultraviolet lamp being installed at the top inside the treatment box, the photocatalytic filter being located to the right of the ultraviolet lamp, an activated carbon adsorption plate being installed on the right side inside the treatment box, the photo-oxidation purification device being located to the left of the activated carbon adsorption plate, four sets of slide rails installed at both ends inside the treatment box, the photocatalytic filter and the activated carbon adsorption plate being slidably connected to the inner wall of the treatment box via the slide rails.

[0007] Preferably, a gas collection hood is installed at the bottom of the waste gas conveying pipe.

[0008] Preferably, a support column is installed on the top of the chimney, and a rain cover is installed on the top of the support column.

[0009] Preferably, a fixed support is installed at the bottom of the chimney.

[0010] Preferably, a sealing rubber strip is fixedly installed between the bottom of the photocatalytic filter and the bottom of the activated carbon adsorption plate and the inner bottom of the treatment box.

[0011] Preferably, elastic sealing rings are fixedly installed around the top of the photocatalytic filter and around the top of the activated carbon adsorption plate.

[0012] Preferably, handles are fixedly installed at the middle position of the top of the photocatalytic filter and at the middle position of the top of the activated carbon adsorption plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention uses ultraviolet lamps to generate ultraviolet light, which activates the catalyst on the surface of the photocatalytic filter, causing it to adsorb and decompose harmful gases. The activated carbon adsorption plate removes residual pollutants from the exhaust gas, bringing it up to emission standards. The photocatalytic filter and activated carbon adsorption plate are slidably connected to the inner wall of the treatment box via slide rails, facilitating their removal for cleaning. An elastic sealing ring prevents unpurified harmful gases from leaking through the top gaps of the photocatalytic filter and activated carbon adsorption plate, thus preventing environmental pollution. This invention solves the problem in existing injection molding exhaust gas treatment devices where the contact area between activated carbon and harmful gases is too small, leading to poor gas purification. It also addresses the difficulty of achieving ideal treatment results using a single purification technology. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front view structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 4 This is a front cross-sectional view of the present invention.

[0019] Figure 5 This is a top cross-sectional view of the present invention.

[0020] In the diagram: 1. Processing box; 2. Waste gas conveying pipe; 3. Gas collection hood; 4. Inhalation pipe; 5. Exhaust fan; 6. Exhaust pipe; 7. Chimney; 8. Support column; 9. Rain cover; 10. Fixed bracket; 11. Photocatalytic oxidation purification device; 12. Ultraviolet lamp; 13. Photocatalytic filter; 14. Activated carbon adsorption plate; 15. Slide rail; 16. Sealing rubber strip; 17. Elastic sealing ring; 18. Handle. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This utility model provides an embodiment of an injection molding waste gas treatment device, comprising a treatment box 1, a waste gas conveying pipe 2 installed on the left side of the treatment box 1, an air intake pipe 4 installed on the right side of the treatment box 1, an induced draft fan 5 installed on the right side of the air intake pipe 4, an exhaust pipe 6 installed on the upper part of the right side of the induced draft fan 5, a chimney 7 installed on the right side of the exhaust pipe 6, three sets of photo-oxidation purification devices 11 installed inside the treatment box 1, each photo-oxidation purification device 11 comprising an ultraviolet lamp 12 and a photocatalytic filter 13, the ultraviolet lamp 12 being installed at the top inside the treatment box 1, the photocatalytic filter 13 being located to the right of the ultraviolet lamp 12, an activated carbon adsorption plate 14 being installed on the right side inside the treatment box 1, the photo-oxidation purification device 11 being located to the left of the activated carbon adsorption plate 14, and four sets of slide rails 15 being installed at both ends inside the treatment box 1, the photocatalytic filter 13 and the activated carbon adsorption plate 14 being slidably connected to the inner wall of the treatment box 1 via the slide rails 15.

[0023] Please see Figure 1 The bottom of the exhaust gas conveying pipe 2 is equipped with a gas collection hood 3. The gas collection hood 3 is equipped with an injection molding exhaust gas collection system, which can effectively collect and treat the exhaust gas generated during production, and prevent exhaust gas leakage from causing environmental pollution.

[0024] Please see Figure 2 A support column 8 is installed on the top of the chimney 7, and a rain cover 9 is installed on the top of the support column 8. The rain cover 9 prevents rainwater and foreign objects from entering the exhaust pipe system and protects the normal operation of the device.

[0025] Please see Figure 1 A fixed support 10 is installed at the bottom of the chimney 7, which provides support for the chimney 7 and improves the stability of the chimney 7.

[0026] Please see Figure 3A sealing rubber strip 16 is fixedly installed between the bottom of the photocatalytic filter 13 and the bottom of the activated carbon adsorption plate 14 and the inner bottom of the treatment box 1, which prevents unpurified harmful gases from flowing out from the gaps at the bottom of the photocatalytic filter 13 and the activated carbon adsorption plate 14, thereby improving the purification quality of the gas.

[0027] Please see Figure 1 and Figure 3 Elastic sealing rings 17 are fixedly installed around the top of the photocatalytic filter 13 and around the top of the activated carbon adsorption plate 14 to prevent unpurified harmful gases from leaking from the gaps at the top of the photocatalytic filter 13 and the activated carbon adsorption plate 14, thus preventing waste gas leakage from causing environmental pollution.

[0028] Please see Figure 3 A handle 18 is fixedly installed at the middle position of the top of the photocatalytic filter 13 and the middle position of the top of the activated carbon adsorption plate 14. The handle 18 facilitates the installation and removal of the photocatalytic filter 13 and the activated carbon adsorption plate 14, thus improving the practicality of the device.

[0029] Working principle: During use, the waste gas generated during production can be effectively collected and treated through the gas collection hood 3. The waste gas enters the treatment box 1 through the waste gas delivery pipe 2. The exhaust fan 5 allows the waste gas to pass through the photo-oxidation purification device 11 and the activated carbon adsorption plate 14 and enter the exhaust fan 5 through the suction pipe 4. The purified gas is discharged from the chimney 7 through the exhaust pipe 6. The ultraviolet light generated by the ultraviolet lamp tube 12 can activate the catalyst on the surface of the photocatalytic filter 13 to adsorb and decompose harmful gases. The activated carbon adsorption plate 14 can remove residual pollutants in the waste gas, so that the waste gas meets the emission standards. The photocatalytic filter 13 and the activated carbon adsorption plate 14 are slidably connected to the inner wall of the treatment box 1 through the slide rail 15, which makes it easy to remove the photocatalytic filter 13 and the activated carbon adsorption plate 14 from the treatment box 1 for cleaning.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for treating injection molding exhaust gas, comprising a treatment chamber (1), characterized in that: A waste gas conveying pipe (2) is installed on the left side of the treatment box (1), a suction pipe (4) is installed on the right side of the treatment box (1), an exhaust fan (5) is installed on the right side of the suction pipe (4), an exhaust pipe (6) is installed on the upper right side of the exhaust fan (5), and a chimney (7) is installed on the right side of the exhaust pipe (6). Three sets of photo-oxidation purification devices (11) are installed inside the treatment box (1). The photo-oxidation purification device (11) includes an ultraviolet lamp (12) and a photocatalytic filter (13). The photocatalytic filter (13) is installed at the top inside the treatment box (1). The photocatalytic filter (13) is located to the right of the ultraviolet lamp (12). An activated carbon adsorption plate (14) is installed on the right side inside the treatment box (1). The photo-oxidation purification device (11) is located to the left of the activated carbon adsorption plate (14). Four sets of slide rails (15) are installed at both ends inside the treatment box (1). The photocatalytic filter (13) and the activated carbon adsorption plate (14) are slidably connected to the inner wall of the treatment box (1) through the slide rails (15).

2. The injection molding waste gas treatment device according to claim 1, characterized in that: A gas collection hood (3) is installed at the bottom of the waste gas conveying pipe (2).

3. The injection molding waste gas treatment device according to claim 1, characterized in that: The top of the chimney (7) is equipped with a support column (8), and the top of the support column (8) is equipped with a rain cover (9).

4. The injection molding waste gas treatment device according to claim 1, characterized in that: The bottom of the chimney (7) is fitted with a fixed bracket (10).

5. The injection molding waste gas treatment device according to claim 1, characterized in that: A sealing rubber strip (16) is fixedly installed between the bottom of the photocatalytic filter (13) and the bottom of the activated carbon adsorption plate (14) and the inner bottom of the treatment box (1).

6. The injection molding waste gas treatment device according to claim 1, characterized in that: Elastic sealing rings (17) are fixedly installed around the top of the photocatalytic filter (13) and around the top of the activated carbon adsorption plate (14).

7. The injection molding waste gas treatment device according to claim 1, characterized in that: A handle (18) is fixedly installed at the middle position of the top of the photocatalytic filter (13) and at the middle position of the top of the activated carbon adsorption plate (14).

Images