Aluminum alloy spray painting device

Abstract

The present application discloses an aluminum alloy painting device in the field of painting equipment technology, including a painting tank and an exhaust gas treatment mechanism, wherein a conveying chain is provided on the painting tank, and a plurality of suspension members are connected to the conveying chain; a plurality of painting components are provided in the painting tank, and the painting components are used to paint aluminum alloy parts; the exhaust gas treatment mechanism includes a centrifugal fan and an air duct, wherein the air duct is transversely fixedly connected to the tank wall of the painting tank, and the air duct is connected to the inside of the painting tank, and the centrifugal fan is fixed to the outer wall of the painting tank; a filter screen is detachably connected to the air inlet end of the air duct; an electric heating screen is fixedly connected to the air outlet end of the air duct, and an adsorption layer is detachably connected to the air duct, and the adsorption layer is located between the electric heating screen and the filter screen, and the adsorption layer is used to absorb volatile organic compounds, paint mist particles and some inorganic gases in the paint exhaust. This solution solves the problem that the paint exhaust diffuses into the surrounding environment and affects the air quality.

Description

Technical Field

[0001] The invention relates to the technical field of paint spraying equipment, and in particular to an aluminum alloy paint spraying device. Background Art

[0002] Aluminum alloy is an alloy composed of aluminum and other elements (such as copper, magnesium, manganese, silicon, zinc, etc.). Adding these elements can improve the mechanical properties of pure aluminum, such as strength, hardness, corrosion resistance and processing performance. Due to its light weight, high strength, easy processing and good corrosion resistance, aluminum alloy is widely used in many fields such as aviation, automobile manufacturing, building structure, electronic equipment, household appliances, etc.

[0003] Although aluminum alloys themselves have good corrosion resistance, in certain environments such as marine climates, exposed aluminum alloys may be corroded. In this case, spraying a layer of protective paint can provide an additional layer of protection to prevent corrosion. However, when spraying, a large amount of paint exhaust gas will diffuse into the surrounding environment. The paint exhaust gas is mainly composed of volatile organic compounds (VOCs), paint mist particles and other possible harmful substances released during the spraying and drying process. The diffusion of paint exhaust gas into the surrounding environment will cause air pollution, form photochemical smog, reduce air quality, and damage the ecosystem. Second, for workers engaged in spray painting operations, long-term exposure to a working environment containing a large amount of VOCs and paint mist can easily cause a variety of acute or chronic health problems. Therefore, there is an urgent need for a spray painting device that can treat paint exhaust gas. Summary of the invention

[0004] The present invention is intended to provide an aluminum alloy paint spraying device to solve the problem that paint waste gas diffuses into the surrounding environment and affects the air quality.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an aluminum alloy painting device, comprising a paint spraying bin and an exhaust gas treatment mechanism, wherein two opposite bin walls of the paint spraying bin are respectively provided with an inlet and an outlet, and the paint spraying bin is provided with a conveyor chain, which extends horizontally from above the inlet and then passes through the outlet, and a plurality of hanging parts are fixedly connected to the conveyor chain at intervals, and the conveyor chain is used to transport the aluminum alloy parts from the paint spraying bin to the outlet through the inlet after the aluminum alloy parts are hung on the hanging parts, until they are transported out of the paint spraying bin; a plurality of paint spraying assemblies are provided in the paint spraying bin, and the paint spraying assemblies are respectively located on both sides of the moving path of the aluminum alloy parts, and the paint spraying assemblies are used to spray paint the aluminum alloy parts;

[0006] The exhaust gas treatment mechanism includes a centrifugal fan and an air duct, wherein the air duct is transversely fixedly connected to the warehouse wall of the paint spraying warehouse, and the air duct is communicated with the interior of the paint spraying warehouse, and the centrifugal fan is fixedly connected to the outer wall of the paint spraying warehouse, and the centrifugal fan is used to draw the gas in the paint spraying warehouse into the air duct; a filter screen is detachably connected to the air duct near the air inlet end, and the filter screen is used to filter particulate matter in the paint exhaust gas; an electric heating screen is fixedly connected to the air duct near the air outlet end, and an adsorption layer is detachably connected to the air duct, and the adsorption layer is located between the electric heating screen and the filter screen, and the adsorption layer is used to absorb volatile organic compounds, paint mist particles and some inorganic gases in the paint exhaust gas.

[0007] Furthermore, the air guide pipe is provided with an arc-shaped avoidance opening, the width of the avoidance opening is the same as the wide width of the filter mesh plate and is located directly above the filter mesh plate, an arc-shaped pipe with closed ends is installed in the avoidance opening, a plurality of water outlet holes are provided at intervals on the lower surface of the arc-shaped pipe, a vertical water inlet pipe is connected to the arc-shaped pipe, a drain outlet is provided on the lower surface of the air guide pipe, the drain outlet is located directly below the filter mesh plate, a waste water tank is provided below the air guide pipe, and the water inlet of the waste water tank is connected to the drain outlet.

[0008] Furthermore, an inclined water baffle is fixedly connected to the inner bottom of the air guide pipe, and the water baffle is connected to the front side of the filter screen plate, and the bottom end of the water baffle is located at the edge of the drain outlet.

[0009] Furthermore, a plurality of downwardly inclined inclined plates are fixedly connected in the air duct, the plurality of inclined plates are arranged in a vertical row, and the bottom end of the lowest inclined plate is located at the edge of the drain outlet, and the plurality of inclined plates are located at the rear side of the filter screen plate.

[0010] Furthermore, the adsorption layer is an adsorption layer made of activated carbon.

[0011] Furthermore, the air outlet end of the air guide pipe is bent upward and fixedly connected to a vertical tail gas pipe.

[0012] Beneficial effects of the present invention:

[0013] 1. This solution forms a three-stage filtration system by setting up a filter screen, an electric heating screen and an activated carbon adsorption layer; first, the filter screen can effectively intercept larger particulate matter such as paint mist particles; second, the activated carbon adsorption layer can deeply remove residual VOCs and other harmful gases; finally, the electric heating screen can accelerate the decomposition or evaporation of volatile organic compounds (VOCs). This combination ensures that exhaust emissions meet high standards and reduces the impact on the environment.

[0014] 2. The air duct is equipped with an arc-shaped avoidance port and a matching arc-shaped pipe and water inlet pipe, which can spray cleaning liquid or clean water on the filter screen regularly during the painting process to help remove impurities such as paint particles accumulated on its surface. The cleaned wastewater flows into the wastewater tank below through the drain port for centralized treatment, which not only maintains the cleanliness of the filter screen but also extends its service life. At the same time, when the cleaning liquid flows through the filter screen, a water curtain will be formed, allowing some particles and water-soluble gases in the paint exhaust to be discharged together with the cleaning liquid or water, enhancing the treatment effect of the paint exhaust.

[0015] 3. The inside of the air duct is equipped with inclined water baffles and multiple downward inclined plates, which help guide the water flow to the drain smoothly, prevent water from being retained in the pipe and causing secondary pollution or affecting the subsequent treatment efficiency. In addition, it can also reduce the possibility of water droplets flowing back into the exhaust gas flow, ensuring the continuity and stability of exhaust gas treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of an aluminum alloy spray paint device of the present invention;

[0017] Figure 2 It is a cross-sectional view of an embodiment of an aluminum alloy paint spraying device of the present invention. DETAILED DESCRIPTION

[0018] The following is further described in detail through specific implementation methods:

[0019] The figure marks in the drawings of the specification include: paint spraying cabin 1, conveyor chain 2, outlet 3, air guide pipe 4, arc pipe 5, waste water tank 6, adsorption layer 7, tail gas pipe 8, water inlet pipe 9, centrifugal fan 10, inlet 11, paint spraying assembly 12, water baffle 13, drain outlet 14, inclined plate 15, support plate 16, electric heating mesh plate 17, filter mesh plate 18.

[0020] The embodiment is basically as shown in the attached Figure 1 and attached Figure 2 As shown:

[0021] An aluminum alloy painting device comprises a paint spraying chamber 1 and an exhaust gas treatment mechanism, wherein an inlet 11 and an outlet 3 are respectively arranged on two opposite chamber walls of the paint spraying chamber 1, and a conveying chain 2 is arranged on the paint spraying chamber 1, and the conveying chain 2 extends horizontally from above the inlet 11 and then passes through the outlet 3, and a plurality of hanging parts are fixedly connected to the conveying chain 2 at intervals, and the conveying chain 2 is used for hanging aluminum alloy parts on the hanging parts, and then the aluminum alloy parts are transported from the paint spraying chamber 1 to the outlet 3 through the inlet 11, until they are transported out of the paint spraying chamber 1; a plurality of paint spraying components 12 are arranged in the paint spraying chamber 1, and the paint spraying components 12 are respectively located on both sides of the moving path of the aluminum alloy parts, and the paint spraying components 12 are used for painting the aluminum alloy parts;

[0022] The exhaust gas treatment mechanism includes a centrifugal fan 10 and an air duct 4, the air duct 4 is fixedly connected to the warehouse wall of the paint spraying cabin 1 in the horizontal direction, and the air duct 4 is connected to the interior of the paint spraying cabin 1, and the lower surface of the right end of the air duct 4 is fixedly connected to a support plate 16, and the air outlet end of the air duct 4 is bent upward and fixedly connected to a vertical exhaust pipe 8, and the centrifugal fan 10 is fixedly connected to the outer wall of the paint spraying cabin 1, and the centrifugal fan 10 is used to draw the gas in the paint spraying cabin 1 into the air duct 4; a filter screen plate 18 is detachably connected to the air duct 4 near the air inlet end, and the filter screen plate 18 is used to filter particulate matter in the paint exhaust gas; an electric heating screen plate 17 is fixedly connected to the air duct 4 near the air outlet end, and an adsorption layer 7 made of activated carbon is detachably connected to the air duct 4, and the adsorption layer 7 is located between the electric heating screen plate 17 and the filter screen plate 18, and the adsorption layer 7 is used to absorb volatile organic compounds, paint mist particles and some inorganic gases in the paint exhaust gas.

[0023] The air duct 4 is provided with an arc-shaped avoidance opening, the width of the avoidance opening is the same as the wide width of the filter screen plate 18 and is located directly above the filter screen plate 18, an arc-shaped tube 5 with closed ends is installed in the avoidance opening, a plurality of water outlet holes are arranged at intervals on the lower surface of the arc-shaped tube 5, and a vertical water inlet pipe 9 is connected to the arc-shaped tube 5, a drain port 14 is provided on the lower surface of the air duct 4, and the drain port 14 is located directly below the filter screen plate 18, and a waste water tank 6 is provided below the air duct 4, and the waste water tank 6 The water inlet is connected to the drain outlet 14, and the inner bottom of the air guide pipe 4 is fixedly connected with an inclined water baffle 13, the water baffle 13 is in front of the filter screen plate 18, and the bottom end of the water baffle 13 is located at the edge of the drain outlet 14; a plurality of downwardly inclined inclined plates 15 are fixedly connected in the air guide pipe 4, and the plurality of inclined plates 15 are arranged in a vertical row, and the bottom end of the lowest inclined plate 15 is located at the edge of the drain outlet 14, and the plurality of inclined plates 15 are located at the rear side of the filter screen plate 18.

[0024] The specific implementation process is as follows:

[0025] When in use, the aluminum alloy parts are hung on the conveyor chain 2 through the hanging parts. When the conveyor chain 2 moves, it drives the aluminum alloy parts from the inlet 11 into the paint spraying tank 1 and moves toward the outlet 3. When the aluminum alloy parts move to the paint spraying assembly 12, the paint spraying assembly 12 starts to spray paint on the aluminum alloy parts, and the aluminum alloy parts that have been painted are moved by the conveyor chain 2 to the outlet 3 and transported out of the paint spraying tank 1. In the process of painting, the centrifugal fan 10 and the electric heating mesh plate 17 are started, and water is continuously injected into the arc tube 5 through the water inlet pipe 9. When the centrifugal fan 10 is running, the paint exhaust gas in the paint spraying tank 1 is sucked into the air guide pipe 4. When the centrifugal fan 10 exhausts the paint spraying tank 1, the paint spraying tank 1 sucks in the outside air through the inlet 11 and the outlet 3, forming an inward airflow, thereby preventing the paint exhaust gas in the paint spraying tank 1 from flowing out through the inlet 11 and the outlet 3. After the paint exhaust gas enters the air guide pipe 4, the paint exhaust gas passes through the filter screen 18 under the action of air pressure. At this time, the particulate matter in the paint exhaust gas is filtered by the filter screen 18 and adheres to the filter screen 18. The water inlet pipe 9 continues to inject water into the arc tube 5. Since the lower surface of the arc tube 5 is provided with a plurality of water outlet holes at intervals, the water rushes from the water outlet holes to the filter screen 18, forming a water curtain flowing downward on the filter screen 18. The downward flowing water curtain can wash away the particulate matter attached to the filter screen 18. , ensuring that the filter screen 18 can continue to filter efficiently, and at the same time, when the paint exhaust gas passes through the filter screen 18, the water-soluble substances in the paint exhaust gas are dissolved in the water, and some fine particles are also adsorbed by the water curtain. At this time, the waste water containing the exhaust gas and the particulate matter flows into the wastewater tank 6 through the drain port 14, and the paint exhaust gas filtered by the filter screen 18 passes through the activated carbon adsorption layer 7 under the action of air pressure, and the activated carbon adsorption layer 7 adsorbs the odor, some volatile organic compounds and paint mist particles. Finally, the gas filtered by the filter screen 18 and the activated carbon passes through the electric heating screen, and the VOCs in the gas are decomposed into CO2 and H2O and discharged from the tail pipe 8.

Claims

1. An aluminum alloy spray painting device, characterized in that: It comprises a paint spraying bin and an exhaust gas treatment mechanism, wherein an inlet and an outlet are respectively arranged on two opposite bin walls of the paint spraying bin, and a conveying chain is arranged on the paint spraying bin, which extends horizontally from above the inlet and then passes through the outlet, and a plurality of hanging parts are fixedly connected to the conveying chain at intervals, and the conveying chain is used to transport the aluminum alloy parts from the paint spraying bin to the outlet through the inlet after the aluminum alloy parts are hung on the hanging parts, until they are transported out of the paint spraying bin; a plurality of paint spraying assemblies are arranged in the paint spraying bin, and the paint spraying assemblies are respectively located on both sides of the moving path of the aluminum alloy parts, and the paint spraying assemblies are used to spray paint the aluminum alloy parts; The exhaust gas treatment mechanism includes a centrifugal fan and an air duct, wherein the air duct is transversely fixedly connected to the warehouse wall of the paint spraying warehouse, and the air duct is communicated with the interior of the paint spraying warehouse, and the centrifugal fan is fixedly connected to the outer wall of the paint spraying warehouse, and the centrifugal fan is used to draw the gas in the paint spraying warehouse into the air duct; a filter screen is detachably connected to the air duct near the air inlet end, and the filter screen is used to filter particulate matter in the paint exhaust gas; an electric heating screen is fixedly connected to the air duct near the air outlet end, and an adsorption layer is detachably connected to the air duct, and the adsorption layer is located between the electric heating screen and the filter screen, and the adsorption layer is used to absorb volatile organic compounds, paint mist particles and some inorganic gases in the paint exhaust gas.

2. The aluminum alloy spray paint device according to claim 1, characterized in that: The air guide pipe is provided with an arc-shaped avoidance opening, the width of the avoidance opening is the same as the wide width of the filter mesh plate and is located directly above the filter mesh plate, an arc-shaped pipe with closed two ends is installed in the avoidance opening, a plurality of water outlet holes are arranged at intervals on the lower surface of the arc-shaped pipe, a vertical water inlet pipe is connected to the arc-shaped pipe, a drain outlet is provided on the lower surface of the air guide pipe, the drain outlet is located directly below the filter mesh plate, a waste water tank is provided below the air guide pipe, and the water inlet of the waste water tank is connected to the drain outlet.

3. The aluminum alloy spray paint device according to claim 2, characterized in that: The inner bottom of the air guide pipe is fixedly connected with an inclined water baffle plate, the water baffle plate is connected to the front side of the filter screen plate, and the bottom end of the water baffle plate is located at the edge of the drain outlet.

4. The aluminum alloy spray paint device according to claim 3, characterized in that: A plurality of downwardly inclined inclined plates are fixedly connected in the air guide pipe, the plurality of inclined plates are arranged in a vertical row, and the bottom end of the lowest inclined plate is located at the edge of the drain outlet, and the plurality of inclined plates are located at the rear side of the filter screen plate.

5. The aluminum alloy spray paint device according to claim 4, characterized in that: The adsorption layer is made of activated carbon.

6. The aluminum alloy paint spraying device according to claim 5, characterized in that: The air outlet end of the air guide pipe is bent upward and fixedly connected to a vertical tail gas pipe.

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