Waste gas treatment equipment for spraying

Abstract

The utility model discloses waste gas treatment equipment for spraying, which relates to the technical field of waste gas treatment and comprises an inverted U-shaped frame, a lifting component mounted at the top of an inner cavity of the inverted U-shaped frame, a fan cover mounted at the bottom of the lifting component, an axial fan mounted in an inner cavity of the fan cover, and a fourth ventilation pipe mounted on the outer wall of the fan cover. A first treatment assembly is installed at the bottom of the inverted-U-shaped frame, a second treatment assembly is installed on the first treatment assembly, and a third treatment assembly is installed on the second treatment assembly. According to the spraying waste gas treatment device, the axial flow fan is started to extract spraying waste gas and inject the spraying waste gas into the first treatment assembly, so that volatile organic compounds in the waste gas can be dissolved into a carbon tetrachloride solution, ammonia gas and hydrogen sulfide gas in the waste gas can be dissolved into clear water, and the lifting assembly is started to drive the fan cover and the axial flow fan to move up and down to a proper height; therefore, the height of the axial fan can be flexibly adjusted according to the height of a component in spraying operation, and the treatment effect of spraying waste gas is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment, and in particular to a waste gas treatment device for spraying. Background Technology

[0002] Spray painting operations generate waste gas, mainly including volatile organic compounds, ammonia, hydrogen sulfide, and other gases. Direct emission of these gases would pollute the environment, so they usually need to be treated. Chinese utility model patent document CN219023715U discloses a waste gas treatment device for a spray painting workshop, including a treatment tank. An exhaust pipe with a solenoid valve is fixed to the top of the treatment tank, and a fume extractor is fixed to the top of the top of the treatment tank. A liquid inlet pipe with a solenoid valve is fixed to the outer wall of the treatment tank near the liquid inlet of the fume extractor. An air inlet square pipe and an exhaust bend are fixed to the air inlet and outlet of the fume extractor, respectively. An air inlet hood is connected to the other end of the air inlet square pipe, and an air inlet stirring synchronization mechanism is connected between the other end of the exhaust bend and the treatment tank. An insert plate is movably inserted into the air inlet square pipe.

[0003] Although the aforementioned exhaust gas treatment equipment for spray painting workshops can use a fume extractor to extract exhaust gas for treatment, the fixed height of the air inlet hood makes it impossible to adjust during use, resulting in poor extraction of exhaust gas at different heights. Therefore, this utility model proposes an exhaust gas treatment equipment for spray painting that differs from the existing technology to solve the above-mentioned technical problems. Utility Model Content

[0004] To address the problem mentioned above where the fixed height of the air intake hood results in poor extraction of spraying exhaust gas at different heights, this invention provides a spraying exhaust gas treatment device.

[0005] This utility model provides a waste gas treatment device for spraying, which adopts the following technical solution:

[0006] A spray painting exhaust gas treatment device includes an inverted U-shaped frame. A lifting assembly is installed at the top of the inner cavity of the inverted U-shaped frame, a fan shroud is installed at the bottom of the lifting assembly, an axial flow fan is installed inside the fan shroud, a fourth ventilation pipe is installed on the outer wall of the fan shroud, a first treatment assembly is installed at the bottom of the inverted U-shaped frame, a second treatment assembly is installed on the first treatment assembly, and a third treatment assembly is installed on the second treatment assembly.

[0007] By adopting the above technical solution, an appropriate amount of carbon tetrachloride solution and clean water are injected into the first and second treatment components. The axial flow fan is started to extract the spraying exhaust gas and inject it into the first treatment component through the fourth air exchange pipe. This allows the volatile organic compounds in the exhaust gas to dissolve in the carbon tetrachloride solution, and the ammonia and hydrogen sulfide gases in the exhaust gas to dissolve in the clean water. When treating the spraying exhaust gas, the lifting component is started to move the fan cover and axial flow fan up and down to an appropriate height. This allows the height of the axial flow fan to be flexibly adjusted according to the height of the components being sprayed, thereby improving the treatment effect of the spraying exhaust gas.

[0008] Optionally, the lifting assembly includes a mounting frame, which is fixed to the top wall of the inner cavity of the inverted U-shaped frame. A winch is installed on the lower surface of the inner cavity of the mounting frame, and a wire rope is installed at the output end of the winch and fixed to the upper surface of the fan cover.

[0009] By adopting the above technical solution, starting the winch drives the wire rope to wind up, which in turn moves the fan cover and axial fan up and down to an appropriate height in the inner cavity of the inverted U-shaped frame. This allows the height of the axial fan to be flexibly adjusted according to the height of the component being sprayed.

[0010] Optionally, the first processing component includes a first processing box, which is fixed at the bottom of the inverted U-shaped frame. A first cylinder is installed at one end of the upper surface of the first processing box. The output shaft of the first cylinder extends into the inner cavity of the first processing box and is fixed with a first king-shaped frame. A first air exchange pipe is installed at the upper end of the outer wall of one side of the first processing box.

[0011] By adopting the above technical solution, the axial flow fan is started to extract the spraying exhaust gas and inject it into the inner cavity of the first treatment box through the fourth air exchange pipe, so that the exhaust gas can fully contact the carbon tetrachloride solution in the inner cavity of the first treatment box, and the volatile organic compounds in the exhaust gas can dissolve into the carbon tetrachloride solution.

[0012] Optionally, the second processing component includes a third processing box, which is fixed to the outer wall of the first processing box. A second cylinder is installed at one end of the upper surface of the third processing box. The output shaft of the second cylinder extends into the inner cavity of the third processing box and is fixed with a second king-shaped frame. A third air exchange pipe is installed at the upper end of one side of the outer wall of the third processing box.

[0013] By adopting the above technical solution, ammonia and hydrogen sulfide in the waste gas can be dissolved into the clean water inside the third treatment tank.

[0014] Optionally, the third processing component includes a second processing box, which is fixed to the outer wall of the third processing box. Multiple sets of ventilation plates are alternately installed at the top and bottom of the inner cavity of the second processing box. Multiple sets of UV lamps are installed on the upper surface of the second processing box. A second ventilation pipe is installed at the upper end of one side of the outer wall of the second processing box.

[0015] By adopting the above technical solution, multiple sets of UV lamps are powered on to use ultraviolet light to further degrade organic or inorganic substances.

[0016] Optionally, a liquid replenishment pipe is installed at one end of the upper surface of both the first and third processing tanks, and a drain pipe is installed at the bottom of both the first and third processing tanks.

[0017] By adopting the above technical solution, the liquid inside the first treatment tank and the third treatment tank can be discharged by opening the control valve on the sewage pipe.

[0018] Optionally, a limiting slide tube is installed at the middle position of both the front and rear side walls of the fan cover, and a limiting vertical rod slides through the inner cavity of both sets of limiting slide tubes.

[0019] By adopting the above technical solution, when the fan cover moves up and down, it can drive the limiting slide tube to slide synchronously on the outer wall of the limiting vertical rod, thereby restricting the movement path of the fan cover.

[0020] In summary, this utility model has at least one of the following beneficial effects:

[0021] The axial fan is activated to extract the spraying exhaust gas and inject it into the inner cavity of the first treatment chamber through the fourth ventilation pipe. This allows the exhaust gas to fully contact the carbon tetrachloride solution in the inner cavity of the first treatment chamber, and the volatile organic compounds in the exhaust gas can dissolve in the carbon tetrachloride solution. The remaining exhaust gas enters the inner cavity of the third treatment chamber through the first ventilation pipe, allowing the ammonia and hydrogen sulfide gases in the exhaust gas to dissolve in the clean water in the inner cavity of the third treatment chamber. The remaining exhaust gas enters the inner cavity of the second treatment chamber through the third ventilation pipe. Multiple sets of UV lamps are then activated to use ultraviolet light to further degrade organic or inorganic substances.

[0022] When treating spraying exhaust gas, starting the winch drives the wire rope to wind up, which in turn moves the fan cover and axial fan up and down to an appropriate height within the inverted U-shaped frame. This allows the height of the axial fan to be flexibly adjusted according to the height of the components being sprayed, thereby improving the treatment effect of the spraying exhaust gas. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0024] Figure 2This is a schematic diagram of the left-side cross-sectional structure of this utility model.

[0025] In the diagram: 1. Winch; 2. Limiting rod; 3. Axial flow fan; 4. Fan cover; 5. Inverted U-shaped frame; 6. First processing box; 7. First cylinder; 8. First king-shaped frame; 9. Sewage pipe; 10. First ventilation pipe; 11. Second king-shaped frame; 12. Second processing box; 13. Ventilation plate; 14. UV lamp; 15. Second ventilation pipe; 16. Third ventilation pipe; 17. Second cylinder; 18. Third processing box; 19. Liquid replenishment pipe; 20. Fourth ventilation pipe; 21. Steel wire rope; 22. Mounting frame; 23. Limiting slide tube. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-2 The present invention will be described in further detail below.

[0027] Please refer to the attached diagram in the instruction manual. Figure 1 and 2 An embodiment of this utility model provides a spraying exhaust gas treatment device, including an inverted U-shaped frame 5. A lifting assembly is installed at the top of the inner cavity of the inverted U-shaped frame 5. The lifting assembly includes a mounting frame 22, which is fixed to the top wall of the inner cavity of the inverted U-shaped frame 5. A winch 1 is installed on the lower surface of the inner cavity of the mounting frame 22. A wire rope 21 is installed at the output end of the winch 1. A fan cover 4 is installed at the bottom of the wire rope 21. The outer wall of one side of the fan cover 4 is set as an opening. An axial flow fan 3 is installed in the inner cavity of the fan cover 4.

[0028] When treating the spraying exhaust gas, the winch 1 is started to drive the wire rope 21 to wind up, which can drive the fan cover 4 and the axial fan 3 to move up and down to an appropriate height in the inner cavity of the inverted U frame 5. This allows the height of the axial fan 3 to be flexibly adjusted according to the height of the components being sprayed, thereby improving the treatment effect of the spraying exhaust gas.

[0029] Please refer to the attached diagram in the instruction manual. Figure 1 and 2 A fourth ventilation pipe 20 is installed on the outer wall of the fan cover 4. The longitudinal section of the fourth ventilation pipe 20 is set to L-shape. A first processing component is installed at the bottom of the inverted U frame 5. The first processing component includes a first processing box 6. The first processing box 6 is fixed at the bottom of the inverted U frame 5. The inner cavity of the first processing box 6 is filled with carbon tetrachloride solution. A first cylinder 7 is installed at one end of the upper surface of the first processing box 6. The output shaft of the first cylinder 7 extends to the inner cavity of the first processing box 6 and is fixed with a first king-shaped frame 8.

[0030] A suitable amount of carbon tetrachloride solution is injected into the inner cavity of the first treatment box 6. The axial flow fan 3 is started to extract the spraying exhaust gas and inject it into the inner cavity of the first treatment box 6 through the fourth air exchange pipe 20, so that the exhaust gas can fully contact the carbon tetrachloride solution in the inner cavity of the first treatment box 6, and the volatile organic compounds in the exhaust gas can dissolve into the carbon tetrachloride solution.

[0031] Please refer to the attached diagram in the instruction manual. Figure 1 A second processing assembly is installed on the outer wall of the first processing box 6. The second processing assembly includes a third processing box 18. The third processing box 18 is fixed on the outer wall of the first processing box 6. The inner cavity of the third processing box 18 is filled with clean water. A second cylinder 17 is installed at one end of the upper surface of the third processing box 18. The output shaft of the second cylinder 17 extends to the inner cavity of the third processing box 18 and is fixed with a second king-shaped frame 11. A first air exchange pipe 10 extending to the inner cavity of the third processing box 18 is installed at the upper end of one side of the outer wall of the first processing box 6. The longitudinal section of the first air exchange pipe 10 is set to L-shape.

[0032] Inject an appropriate amount of clean water into the inner cavity of the third treatment box 18, start the axial flow fan 3 to extract the spraying exhaust gas and inject it into the inner cavity of the first treatment box 6 through the fourth ventilation pipe 20. The remaining exhaust gas enters the inner cavity of the third treatment box 18 through the first ventilation pipe 10, so that the ammonia and hydrogen sulfide gas in the exhaust gas can dissolve into the clean water in the inner cavity of the third treatment box 18.

[0033] Please refer to the attached diagram in the instruction manual. Figure 1 A third processing assembly is installed on the outer wall of the third processing box 18. The third processing assembly includes a second processing box 12, which is fixed on the outer wall of the third processing box 18. A third ventilation pipe 16 is installed at the upper end of one side of the outer wall of the third processing box 18. The third ventilation pipe 16 extends into the inner cavity of the second processing box 12. Multiple sets of ventilation plates 13 are installed alternately at the top and bottom of the inner cavity of the second processing box 12. Multiple sets of UV lamp tubes 14 are installed on the upper surface of the second processing box 12. A second ventilation pipe 15 is installed at the upper end of one side of the outer wall of the second processing box 12.

[0034] Multiple sets of UV lamps 14 are powered on to use ultraviolet light to further degrade organic or inorganic substances. The treated exhaust gas is discharged through the second ventilation pipe 15. Under the action of multiple sets of ventilation plates 13, the flow path of exhaust gas in the inner cavity of the second treatment box 12 can be increased, thereby improving the treatment effect.

[0035] Please refer to the attached diagram in the instruction manual. Figure 1 and 2Both the first treatment tank 6 and the third treatment tank 18 have a replenishment pipe 19 installed at one end of their upper surfaces. A control valve is installed on the outside of the replenishment pipe 19. Both the first treatment tank 6 and the third treatment tank 18 have a drain pipe 9 installed at their bottom positions. A control valve is installed on the outside of the drain pipe 9. Opening the control valve on the replenishment pipe 19 allows carbon tetrachloride solution and clean water to be injected into the inner cavities of the first treatment tank 6 and the third treatment tank 18. Opening the control valve on the drain pipe 9 allows the liquid in the inner cavities of the first treatment tank 6 and the third treatment tank 18 to be drained, respectively.

[0036] Please refer to the attached diagram in the instruction manual. Figure 1 and 2 Limiting slide tubes 23 are installed at the middle position of both the front and rear side walls of the fan cover 4, and limiting vertical rods 2 slide through the inner cavity of both sets of limiting slide tubes 23. When the fan cover 4 moves up and down, it can drive the limiting slide tubes 23 to slide synchronously on the outer wall of the limiting vertical rods 2, thereby restricting the movement path of the fan cover 4.

[0037] Working principle: When using the spraying exhaust gas treatment equipment, move the equipment to a suitable position next to the spraying equipment, open the control valve on the replenishment pipe 19, and inject appropriate amounts of carbon tetrachloride solution and clean water into the inner cavities of the first treatment tank 6 and the third treatment tank 18 respectively. Start the axial flow fan 3 to extract the spraying exhaust gas and inject it into the inner cavity of the first treatment tank 6 through the fourth ventilation pipe 20, so that the exhaust gas can fully contact the carbon tetrachloride solution when it enters the inner cavity of the first treatment tank 6, and the volatile organic compounds in the exhaust gas can dissolve in the carbon tetrachloride solution.

[0038] The remaining exhaust gas enters the inner cavity of the third treatment chamber 18 through the first ventilation pipe 10, allowing the ammonia and hydrogen sulfide in the exhaust gas to dissolve in the clean water inside the third treatment chamber 18. The remaining exhaust gas then enters the inner cavity of the second treatment chamber 12 through the third ventilation pipe 16. Multiple sets of UV lamps 14 are powered on to use ultraviolet light to further degrade organic or inorganic substances. The treated exhaust gas is then discharged through the second ventilation pipe 15. The multiple ventilation plates 13 increase the flow path of the exhaust gas in the inner cavity of the second treatment chamber 12, improving the treatment effect.

[0039] Activating the extension and retraction of the first cylinder 7 and the second cylinder 17 can drive the first king-shaped frame 8 and the second king-shaped frame 11 to move up and down in the inner cavities of the first treatment box 6 and the third treatment box 18, respectively. This can agitate the carbon tetrachloride solution and water, improving the contact effect between the spraying exhaust gas and the carbon tetrachloride solution and water. Opening the control valve on the drain pipe 9 can discharge the liquid from the inner cavities of the first treatment box 6 and the third treatment box 18, respectively.

[0040] When treating the spraying exhaust gas, the winch 1 is started to drive the wire rope 21 to wind up, which can drive the fan cover 4 and the axial flow fan 3 to move up and down to an appropriate height in the inner cavity of the inverted U frame 5. This allows the height of the axial flow fan 3 to be flexibly adjusted according to the height of the components being sprayed, thereby improving the treatment effect of the spraying exhaust gas. When the fan cover 4 moves up and down, it can drive the limiting slide tube 23 to slide synchronously on the outer wall of the limiting vertical rod 2, thereby restricting the movement path of the fan cover 4.

[0041] All standard parts used in this utility model document can be purchased from the market. Each component in this utility model document can be customized according to the description and drawings. The specific connection methods of each component adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.

[0042] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A waste gas treatment device for spraying, comprising an inverted U-shaped frame (5), characterized in that: A lifting assembly is installed at the top of the inner cavity of the inverted U-shaped frame (5), a fan cover (4) is installed at the bottom of the lifting assembly, an axial flow fan (3) is installed in the inner cavity of the fan cover (4), a fourth ventilation pipe (20) is installed on the outer wall of the fan cover (4), a first processing assembly is installed at the bottom of the inverted U-shaped frame (5), a second processing assembly is installed on the first processing assembly, and a third processing assembly is installed on the second processing assembly.

2. The waste gas treatment equipment for spraying according to claim 1, characterized in that: The lifting assembly includes a mounting frame (22), which is fixed on the top wall of the inner cavity of the inverted U-shaped frame (5). A winch (1) is installed on the lower surface of the inner cavity of the mounting frame (22), and a wire rope (21) fixed to the upper surface of the fan cover (4) is installed at the output end of the winch (1).

3. The waste gas treatment equipment for spraying according to claim 1, characterized in that: The first processing component includes a first processing box (6), which is fixed at the bottom of the inverted U-shaped frame (5). A first cylinder (7) is installed at one end of the upper surface of the first processing box (6). The output shaft of the first cylinder (7) extends into the inner cavity of the first processing box (6) and is fixed with a first king-shaped frame (8). A first air exchange pipe (10) is installed at the upper end of the outer wall of one side of the first processing box (6).

4. The waste gas treatment equipment for spraying according to claim 3, characterized in that: The second processing component includes a third processing box (18), which is fixed on the outer wall of the first processing box (6). A second cylinder (17) is installed at one end of the upper surface of the third processing box (18). The output shaft of the second cylinder (17) extends into the inner cavity of the third processing box (18) and is fixed with a second king-shaped frame (11). A third air exchange pipe (16) is installed at the upper end of one side of the outer wall of the third processing box (18).

5. The waste gas treatment equipment for spraying according to claim 4, characterized in that: The third processing component includes a second processing box (12), which is fixed on the outer wall of the third processing box (18). Multiple sets of ventilation plates (13) are installed alternately on the top and bottom of the inner cavity of the second processing box (12). Multiple sets of UV lamp tubes (14) are installed on the upper surface of the second processing box (12). A second ventilation pipe (15) is installed at the upper end of the outer wall on one side of the second processing box (12).

6. The waste gas treatment equipment for spraying according to claim 4, characterized in that: A liquid replenishment pipe (19) is installed at one end of the upper surface of the first processing tank (6) and the third processing tank (18), and a drain pipe (9) is installed at the bottom of the first processing tank (6) and the third processing tank (18).

7. The waste gas treatment equipment for spraying according to claim 1, characterized in that: Limiting slide tubes (23) are installed at the middle position of the front and rear side walls of the fan cover (4), and limiting vertical rods (2) slide through the inner cavity of both sets of limiting slide tubes (23).

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