Recycled waste gas collecting system for paint spraying of bottle bodies of wine bottles

Abstract

The invention relates to the technical field of wine bottle paint spraying equipment, and discloses a recovered waste gas collecting system for paint spraying of wine bottle bodies, which comprises a paint spraying box body, and a recovery chamber is used for absorbing paint fog drops and toxic volatile solvent gas emissions in paint spraying waste gas; the spraying chamber sprays spiral water flow to paint fog drops sprayed on the workpiece conveying line; the water curtain cavity communicates with the spraying cavity to form a flowing water pool, and the water curtain cavity communicates with a water supply pool and conducts water flow flushing on paint fog drops sprayed on the working conveying line. The recycling chamber is communicated with the spraying chamber through a negative pressure pipeline, so that the flowing water pool in the spraying chamber is spirally sucked into the water supply pool of the recycling chamber through the negative pressure pipeline, and the water supply pool supplies water to the spraying chamber for spraying and supplies water to the water curtain chamber for washing. According to the device, paint fog drops and toxic volatile solvent gas emissions in the paint spraying waste gas are rapidly absorbed in the wine bottle spraying process, so that the waste gas exhausted to the external environment meets the national environmental protection requirement.

Description

Technical Field

[0001] The present invention relates to the technical field of wine bottle painting equipment, and particularly to a waste gas collection system for recycling waste gas from the painting of wine bottle bodies. Background Art

[0002] The outer surface of wine bottles is usually beautified by painting. The traditional spraying process is an open spraying process. During the spraying process, the paint will spread around to form paint droplets to generate spraying waste gas, which will cause environmental pollution and seriously endanger the physical health of operators.

[0003] Therefore, in order to solve the above technical problems, a spraying line with a high-pressure air gun spraying and a water curtain wall recycling method is now adopted, so that the wine bottle painting environment is in a relatively enclosed space. During the wine bottle painting process, the water flow of the water curtain wall drives the paint droplets to be recycled into the wastewater treatment tank, thereby reducing the diffusion of the paint droplets to the surrounding area; however, during the use of the above-mentioned spraying line with a high-pressure air gun spraying and a water curtain wall recycling method, the water flow of the water curtain wall sprays the paint droplets unidirectionally. Although it can reduce the paint droplets in the spraying waste gas, there are still a large number of paint droplets carried in the spraying waste gas during the emission process. The discharged spraying waste gas contains a large amount of toxic volatile solvent gas emissions and cannot meet the national environmental protection requirements.

[0004] Therefore, in order to ensure that the spraying waste gas meets the national environmental protection requirements, during the outward emission of the spraying waste gas, the spraying waste gas will be treated again. That is, after the wine bottle is painted with paint through a spraying line with a high-pressure air gun spraying and a water curtain wall recycling method, devices and equipment for treating the spraying waste gas are additionally installed to control the large amount of spraying droplets and toxic volatile solvent gas emissions contained in the waste gas, so as to meet the national environmental protection requirements. However, this greatly increases the production cost of wine bottles, and at the same time, the maintenance of each device and equipment also greatly increases the maintenance cost. Summary of the Invention

[0005] The present invention aims to provide a waste gas collection system for recycling waste gas from the painting of wine bottle bodies, so as to cancel the devices and equipment for treating the spraying waste gas in the prior art, and realize the rapid absorption of paint droplets and toxic volatile solvent gas emissions in the spraying waste gas during the wine bottle spraying process, so as to meet the requirement that the waste gas discharged to the external environment complies with the national environmental protection requirements.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] 1) A waste gas collection system for recycling waste gas from the painting of wine bottle bodies, comprising:

[0008] A painting box body configured to have a workpiece conveying line through which a wine bottle passes and is painted on the wine bottle;

[0009] A recovery chamber, configured to be arranged at the top inside the paint spraying box body, and a negative pressure pumping state is continuously formed inside the recovery chamber, and is used to absorb paint droplets and toxic volatile solvent gas emissions in the paint spraying waste gas;

[0010] A spray chamber, configured to be arranged inside the paint spraying box body and below the recovery chamber, the spray chamber is communicated with the recovery chamber to form a water supply pool for supplying water to the spray chamber, and sprays a spiral water flow on the paint droplets sprayed on the workpiece conveying line;

[0011] A water curtain chamber, configured to be arranged inside the paint spraying box body close to the workpiece conveying line and below the recovery chamber, the water curtain chamber is communicated with the spray chamber to form a flowing water pool, the water curtain chamber is communicated with the water supply pool and flushes the paint droplets sprayed on the workpiece conveying line with water flow;

[0012] The recovery chamber is communicated with the spray chamber through a negative pressure pipeline. During use, a negative pressure pumping state is formed inside the recovery chamber, so that a negative pressure state is formed in both the negative pressure pipeline and the spray chamber, and the flowing water pool in the spray chamber is spirally sucked into the water supply pool of the recovery chamber through the negative pressure pipeline, and water is supplied from the water supply pool to the spray chamber for spraying and to the water curtain chamber for flushing.

[0013] The recovery chamber, the spray chamber and the water curtain chamber designed in the above technical solution are all arranged inside the paint spraying box body. The wine bottles are painted on the workpiece conveying line inside the paint spraying box body. The paint spraying waste gas generated during the paint spraying process is sprayed towards the direction of the water curtain chamber. The water flow in the water curtain chamber flushes and absorbs the paint spraying waste gas sprayed on the workpiece conveying line, and carries the paint droplets and toxic volatile solvent gas emissions in the paint spraying waste gas into the flowing water pool;

[0014] The remaining paint spraying waste gas that has not been flushed and absorbed will enter the spray chamber through the water curtain chamber. The spray chamber sprays a spiral water flow on the paint spraying waste gas sprayed on the workpiece conveying line. The impact force generated by the spiral water flow flushes and absorbs the paint droplets and toxic volatile solvent gas emissions floating in the spray chamber, so that the paint droplets and toxic volatile solvent gas emissions enter the flowing water pool along with the spiral water flow;

[0015] During this process, due to the formation of a negative pressure state in the recovery chamber, negative pressure states are formed in both the negative pressure pipeline and the spray chamber. As a result, the flowing water pool in the spray chamber is sucked into the recovery chamber through the negative pressure conduit under negative pressure. Since the negative pressure pipeline is in a negative pressure state, the paint mist droplets and toxic volatile solvent gas emissions contained in the flowing water pool are mixed with air under negative pressure in the negative pressure pipeline, greatly enhancing the rapid absorption of paint mist droplets and toxic volatile solvent gas emissions in the flowing water pool. At the same time, after the water and gas in the water supply pool in the recovery chamber are mixed, they supply water to the spray chamber. The sprayed spiral water flow will carry the gas to impact the spray painting exhaust gas, which can destroy and absorb the paint mist droplets and toxic volatile solvent gas emissions in the spray painting exhaust gas.

[0016] At the same time, the water flow in the above technical solution is recycled. Through the water flow scouring in the water curtain chamber, the combined spiral water flow of water and gas in the spray chamber, and the negative pressure mixing of water and gas in the negative pressure pipeline, it can absorb more than 80% of the paint mist droplets and toxic volatile solvent gas emissions in the spray painting exhaust gas, etc., making the discharged spray painting exhaust gas meet the national environmental protection requirements for discharging to the external environment.

[0017] 2) The recovery exhaust gas collection system for wine bottle body spray painting according to 1), wherein:

[0018] A horizontally arranged partition is provided in the spray painting box body. The periphery of the partition is fixed on the inner walls of the four sides of the spray painting box body. The upper surface of the partition faces the recovery chamber and is located at the bottom of the water supply pool in the recovery chamber. The lower surface of the partition faces the spray chamber and the water curtain chamber. A number of spray holes facing the spray chamber and communicating with the spray chamber, and strip-shaped through holes facing the water curtain chamber and communicating with the water curtain chamber are opened on the partition.

[0019] The partition arranged by adopting the above technical solution separates the recovery chamber, the spray chamber and the water curtain chamber, making the recovery chamber located above the spray chamber and the water curtain chamber. Thus, the water supply pool formed in the recovery chamber can supply water to the spray chamber and the water curtain chamber respectively. The water in the water supply pool is sprayed into the spray chamber through a number of spray holes on the partition, and the water in the water supply pool rushes into the water curtain chamber in the form of a waterfall through the strip-shaped through holes.

[0020] The spray painting exhaust gas of the wine bottle spray painting on the workpiece conveyor line is sprayed into the waterfall-like water flow to absorb the paint mist droplets and toxic volatile solvent gas emissions in the spray painting exhaust gas. At the same time, after the flowing water pools in the spray chamber and the water curtain chamber collect the waste water, they flow back to the water supply pool in the recovery chamber under the negative pressure suction state, and then water is supplied from the water supply pool in the recovery chamber to the spray chamber and the water curtain chamber. This cycle repeats, and the water flow is recycled, which can greatly save water volume and enable the water flow to fully absorb the paint mist droplets and toxic volatile solvent gas emissions in the spray painting exhaust gas.

[0021] 3) The waste gas collection system for spraying the bottle body of wine bottles according to 2), wherein:

[0022] A water curtain plate is vertically arranged between the spray chamber and the water curtain chamber. The top of the water curtain plate is fixed to the lower surface of the partition plate, and the bottom of the water curtain plate is fixed to the bottom of the spray paint box body, so that the water curtain plate separates the spray chamber and the water curtain chamber. The plate surface of the water curtain plate faces the workpiece conveying line, and the top of the plate surface of the water curtain plate corresponds to the position of the strip-shaped through hole. A rectangular pipe facing the water curtain plate is provided on the strip-shaped through hole. A plurality of through holes are evenly arranged along the height direction of the water curtain plate. All the through holes communicate the spray chamber and the water curtain chamber and form a flowing water pool at the bottom of the spray paint box body.

[0023] The water curtain plate in the above technical solution is used to separate the spray chamber and the water curtain chamber to form two chambers for treating spray paint waste gas respectively; the plate surface of the water curtain plate in the water curtain chamber faces the workpiece conveying line, and at the same time, the top of the plate surface of the water curtain plate corresponds to the position of the strip-shaped through hole of the partition plate, so that the water flow in the water supply pool of the recovery chamber supplies water to the water curtain plate through the rectangular pipe. The water curtain plate washes down the water flow in the form of a waterfall, and the spray paint waste gas from the spraying of wine bottles on the workpiece conveying line is sprayed into the waterfall-like water flow to absorb the paint mist droplets and toxic volatile solvent gas emissions in the spray paint waste gas;

[0024] At the same time, all the through holes designed on the water curtain plate communicate the spray chamber and the water curtain chamber. The flowing water in the water curtain chamber will flow through the through holes to the spray chamber and gather in the flowing water pool at the bottom of the spray paint box body. At the same time, after the spray paint waste gas from the spraying of wine bottles on the workpiece conveying line is washed by the waterfall-like water flow, part of the spray paint waste gas will enter the spray chamber and be mixed and absorbed again with the water flow in the spray chamber, reducing the paint mist droplets and toxic volatile solvent gas emissions in the spray paint waste gas.

[0025] 4) The waste gas collection system for spraying the bottle body of wine bottles according to 3), wherein:

[0026] Windows for the workpiece conveying line to pass through are respectively opened on both sides of the spray paint box body. The conveying direction of the workpiece conveying line is perpendicular to the spraying direction of the wine bottle spraying. A guiding inclined plate is provided in the spraying direction of the wine bottle on the workpiece conveying line. The guiding inclined plate is arranged in the water curtain chamber, and the top of the guiding inclined plate is fixedly connected to the partition plate.

[0027] The windows opened on both sides of the spray paint box body in the above technical solution are used to provide a passage for the workpiece conveying line to pass through the spray paint box body, so that the spray paint waste gas generated during the spraying process of the workpiece conveying line is in a relatively enclosed environment, avoiding affecting the surrounding environment and facilitating the transfer of wine bottles into the spray paint box body in the direction of the workpiece conveying line for spraying treatment;

[0028] In addition, the conveying direction of the workpiece conveyor line is perpendicular to the painting direction of the wine bottle spraying. At the same time, the guide inclined plate set in the painting direction of the wine bottle spraying of the workpiece conveyor line is to drain the paint liquid generated during the painting process into the flowing water pool, and the paint exhaust gas generated during the painting process will be directed into the water curtain chamber along the direction of the paint liquid spraying, and the water curtain chamber will absorb the paint exhaust gas with water flow.

[0029] 5) The waste gas collection system for wine bottle spray painting according to 2), wherein:

[0030] It also includes a microprocessor. Each spray hole is equipped with a nozzle facing the spray chamber. Each nozzle is equipped with an electromagnetic valve for opening and closing the nozzle. All electromagnetic valves are electrically connected to the microprocessor. The end of the nozzle facing away from the partition is connected to a spiral nozzle.

[0031] The water supply pool of the recovery chamber and the spray chamber are connected by the spray hole in the above technical solution. When the recovery chamber is under negative pressure, the water flow in the flowing water pool is sucked into the water supply pool of the recovery chamber through the negative pressure pipe. The microprocessor sends instructions to all solenoid valves, and all solenoid valves open the nozzles, so that the water in the water supply pool flows through the nozzles to the spiral nozzle. The spiral nozzle can spray the water in a spiral shape toward the spray chamber, so that the paint exhaust gas floating in various parts of the spray chamber can be sprayed and absorbed and collected in the flowing water pool, thereby reducing the paint droplets and toxic volatile solvent gas emissions in the paint exhaust gas.

[0032] 6) The waste gas collection system for wine bottle body painting according to 1), wherein:

[0033] The top of the paint spray box is provided with a negative pressure fan and an exhaust pipe arranged side by side, respectively. The negative pressure fan and the exhaust pipe are connected to the recovery chamber respectively. The negative pressure motor is used to provide a negative pressure environment in the recovery chamber. The exhaust pipe and the rectangular tube are provided with control valves.

[0034] The negative pressure fan in the above technical solution can suck air into the recovery chamber, so that negative pressure is generated in the recovery chamber. During this process, the control valve closes the exhaust pipe and the rectangular tube, and the solenoid valve closes the nozzle, so that a closed space is formed in the recovery chamber. During the air extraction process of the negative pressure fan, the gas in the negative pressure pipeline is also sucked outward to generate negative pressure, thereby sucking the water flow in the flowing water pool into the recovery chamber, and then supplying water to the nozzle and rectangular tube toward the spray chamber and the water curtain chamber respectively through the water supply pool in the recovery chamber.

[0035] 7) The waste gas collection system for wine bottle spray painting according to 6), wherein:

[0036] The negative pressure fan includes a protective cover arranged on the top of the painting box body. A servo motor is installed on the outer surface of the protective cover. The servo motor is provided with an output shaft extending towards the protective cover and passing through the protective cover. A rotating block is fixed on the free end of the output shaft. Several negative pressure blades are evenly distributed along the circumferential direction of the rotating block. All the negative pressure blades face the recovery chamber and are communicated with the recovery chamber.

[0037] With the servo motor in the above technical solution, the output shaft drives the rotating block to rotate. The rotating block drives all the negative pressure blades to rotate and suck the air in the recovery chamber, so that a negative pressure is generated in the recovery chamber. The negative pressure is used to suck the water flow in the flowing water pool through the negative pressure pipeline and introduce it into the water supply pool in the recovery chamber.

[0038] 8) The waste gas recovery and collection system for wine bottle body painting according to 1), wherein:

[0039] A liquid suction hole communicated with the flowing water pool is opened at the bottom of the painting box body. A liquid infusion hole communicated with the water supply pool is opened at the top of the painting box body. The liquid suction hole and the liquid infusion hole are located on the same side of the painting box body. The two ends of the negative pressure pipeline are respectively communicated with the liquid suction hole and the liquid infusion hole.

[0040] With the above technical solution, the negative pressure pipeline sucks the water in the flowing water flow into the negative pressure pipeline through the liquid suction hole. During the suction process, the water flow and air are mixed in a spiral shape in the negative pressure pipeline. During the mixing process, the water flow can greatly absorb the painting waste gas in the air. The mixed water flow and air flow through the liquid infusion hole into the water supply pool, so that the water flow and air are mixed and stored in the recovery chamber.

[0041] 9) The waste gas recovery and collection system for wine bottle body painting according to 1), wherein:

[0042] The workpiece conveying line includes a conveying chain. The conveying chain passes through the painting box body in the conveying direction. Several supporting seats for supporting wine bottles are evenly distributed along the conveying direction of the conveying chain; A wine bottle painting device for painting the workpiece conveying line is arranged in the painting box body.

[0043] With the above technical solution, several supporting seats evenly arranged along the conveying chain, each supporting seat is used to support the wine bottle, drive the wine bottle to pass through the painting box body along the conveying direction of the workpiece conveying line, and the wine bottle painting device in the painting box body paints the wine bottles on each supporting seat. The operation is convenient and simple, and there is no need for manual spraying, which greatly reduces the impact on the physical health of the staff.

[0044] Compared with the prior art, the present invention also has the following technical effects:

[0045] The negative pressure pipeline designed by the present invention can suck the wastewater containing paint droplets and toxic volatile solvent gas emissions in the flowing water tank into the water supply tank of the recovery chamber, and under the negative pressure suction state of the recovery chamber, mix the paint droplets and toxic volatile solvent gas emissions contained in the flowing water tank with air under negative pressure, greatly improving the rapid absorption of paint droplets and toxic volatile solvent gas emissions in the flowing water tank; at the same time, during the suction process of the negative pressure pipeline, the water flow is mixed with air and concentrated in the water supply tank of the recovery chamber, and then sprayed from the water supply tank towards the spray chamber through the spiral nozzle. Due to the mixing of air and water flow, the spraying impact force of the spiral nozzle is stronger, effectively absorbing more than 80% of the paint droplets and toxic volatile solvent gas emissions in the spray exhaust gas, etc., so that the spray exhaust gas discharged later no longer needs to be treated additionally, and the exhaust gas discharged to the external environment meets the national environmental protection requirements, reducing the treatment steps of the spray exhaust gas discharged later, saving energy and increasing efficiency, and greatly improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a schematic structural diagram of the waste gas recovery collection system for spraying the bottle body of wine bottles according to the present invention;

[0047] Figure 2 is Figure 1 a sectional view taken along line A-A in

[0048] Figure 3 is Figure 2 a sectional view taken along line B-B in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0049] The following will be further described in detail through specific embodiments:

[0050] The reference numerals in the accompanying drawings of the specification include: spray paint box body 1, recovery chamber 2, spray chamber 3, water curtain chamber 4, conveyor chain 5, partition plate 6, exhaust pipe 7, negative pressure fan 8, servo motor 9, negative pressure pipeline 10, guide inclined plate 11, water curtain plate 12, through hole 13, spray pipe 14, spiral nozzle 15, liquid suction hole 16, liquid infusion hole 17, rotating block 18, negative pressure blade 19.

[0051] Now, reference will be made in detail to the embodiments disclosed by the present invention. Although the present disclosure will be described in conjunction with embodiments and / or examples, they do not limit the present disclosure to these embodiments and / or examples. On the contrary, the present disclosure covers alternatives, modifications and equivalents.

[0052] Embodiment, see Figure 1As shown in the figure, in this embodiment, the waste gas collection system for spraying paint on the wine bottle body includes a spraying box body 1, a recovery chamber 2, a spraying chamber 3 and a water curtain chamber 4. Among them, the spraying box body 1 is configured to have a workpiece conveying line for the wine bottle to pass through and spray paint on the wine bottle; the recovery chamber 2 is configured to be arranged at the top inside the spraying box body 1 and continuously form a negative pressure pumping state inside the recovery chamber 2, and is used to absorb the paint droplets and toxic volatile solvent gas emissions in the spraying waste gas.

[0053] The spraying chamber 3 is configured to be arranged inside the spraying box body 1 and below the recovery chamber 2. The spraying chamber 3 is connected to the recovery chamber 2 to form a water supply pool for supplying water to the spraying chamber 3, and sprays a spiral water flow on the paint droplets sprayed on the workpiece conveying line; the water curtain chamber 4 is configured to be arranged inside the spraying box body 1 close to the workpiece conveying line and below the recovery chamber 2. The water curtain chamber 4 is connected to the spraying chamber 3 to form a flowing water pool. The water curtain chamber 4 is connected to the water supply pool and flushes the paint droplets sprayed on the work conveying line with water flow.

[0054] The recovery chamber 2 is connected to the spraying chamber 3 through a negative pressure pipeline 10. During use, a negative pressure pumping state is formed inside the recovery chamber 2, so that a negative pressure state is formed inside the negative pressure pipeline 10 and the spraying chamber 3. The flowing water pool inside the spraying chamber 3 is spirally sucked into the water supply pool of the recovery chamber 2 through the negative pressure pipeline 10, and the water supply pool supplies water for spraying in the spraying chamber 3 and flushing in the water curtain chamber 4.

[0055] In this embodiment, a liquid suction hole 16 communicating with the flowing water pool is opened at the bottom of the spraying box body 1, and an infusion hole 17 communicating with the water supply pool is opened at the top of the spraying box body 1. The liquid suction hole 16 and the infusion hole 17 are located on the same side of the spraying box body 1. The two ends of the negative pressure pipeline 10 are respectively connected to the liquid suction hole 16 and the infusion hole 17.

[0056] In this embodiment, the negative pressure pipeline 10 sucks the water in the flowing water into the negative pressure pipeline 10 through the liquid suction hole 16. During the suction process, the water flow and air are spirally mixed inside the negative pressure pipeline 10. During the mixing process, the water flow can greatly absorb the spraying waste gas in the air, and the mixed water flow and air flow into the water supply pool through the infusion hole 17, so that the water flow and air are mixed and stored inside the recovery chamber 2. In addition, in this embodiment, a thread groove spirally extending upward along the axis direction is opened on the inner wall of the negative pressure pipeline 10, so that the water and air can be spirally sucked into the recovery chamber 2.

[0057] In addition, the designed recovery chamber 2, spray chamber 3 and water curtain chamber 4 are all arranged inside the paint spraying box body. The wine bottles are painted on the workpiece conveyor line inside the paint spraying box body. The paint spraying waste gas generated during the painting process is sprayed towards the water curtain chamber 4. The water flow in the water curtain chamber 4 flushes and absorbs the paint spraying waste gas sprayed on the workpiece conveyor line, and carries the paint droplets and toxic volatile solvent gas emissions in the paint spraying waste gas into the flowing water tank.

[0058] The remaining paint spraying waste gas that has not been flushed and absorbed will enter the spray chamber 3 through the water curtain chamber 4. The spray chamber 3 sprays a spiral water flow on the paint spraying waste gas sprayed on the workpiece conveyor line. The impact force generated by the spiral water flow flushes and absorbs the paint droplets and toxic volatile solvent gas emissions floating in the spray chamber 3, so that the paint droplets and toxic volatile solvent gas emissions enter the flowing water tank along with the spiral water flow.

[0059] During this process, since a negative pressure state is formed in the recovery chamber 2, the negative pressure pipeline 10 and the spray chamber 3 are both in a negative pressure state, so that the flowing water tank in the spray chamber 3 is sucked into the recovery chamber 2 through the negative pressure conduit under negative pressure. Because the negative pressure pipeline 10 is in a negative pressure state, therefore, the paint droplets and toxic volatile solvent gas emissions contained in the flowing water tank are negatively mixed with air in the negative pressure pipeline 10, greatly improving the rapid absorption of paint droplets and toxic volatile solvent gas emissions in the flowing water tank; at the same time, the water and gas in the water supply tank in the recovery chamber 2 are mixed and then supply water to the spray chamber 3. The sprayed spiral water flow will carry the gas to impact the paint spraying waste gas, which can destroy and absorb the paint droplets and toxic volatile solvent gas emissions in the paint spraying waste gas.

[0060] At the same time, the water flow in the above technical solution is recycled. Through the water flow flushing in the water curtain chamber 4, the spiral water flow spraying combined with water and gas in the spray chamber 3, and the negative pressure mixing of water and gas in the negative pressure pipeline 10, it can absorb more than 80% of the paint droplets and toxic volatile solvent gas emissions and other contents in the paint spraying waste gas, so that the discharged paint spraying waste gas can meet the national environmental protection requirements for discharging to the external environment.

[0061] Combined Figure 2 As shown in the figure, a horizontally arranged partition 6 is provided inside the paint spraying box body 1. The peripheral sides of the partition 6 are fixedly connected to the inner walls of the four sides of the paint spraying box body 1. The upper surface of the partition 6 faces the recovery chamber 2 and is located at the bottom of the water supply tank of the recovery chamber 2. The lower surface of the partition 6 faces the spray chamber 3 and the water curtain chamber 4. A plurality of spray holes facing the spray chamber 3 and communicating with the spray chamber 3, and strip-shaped through holes 13 facing the water curtain chamber 4 and communicating with the water curtain chamber 4 are opened on the partition 6.

[0062] The partition plate 6 provided in this embodiment separates the recovery chamber 2, the spray chamber 3, and the water curtain chamber 4, such that the recovery chamber 2 is located above the spray chamber 3 and the water curtain chamber 4, so that the water supply pool formed in the recovery chamber 2 can supply water to the spray chamber 3 and the water curtain chamber 4 respectively. The water in the water supply pool is sprayed into the spray chamber 3 through a plurality of spray holes on the partition plate 6, and the water in the water supply pool rushes into the water curtain chamber 4 in the form of a waterfall through the strip-shaped through hole 13;

[0063] The spray exhaust gas of the wine bottle painting on the workpiece conveyor line is sprayed into the waterfall-like water flow to absorb the paint droplets and toxic volatile solvent gas emissions in the spray exhaust gas. At the same time, after the flowing water pools in the spray chamber 3 and the water curtain chamber 4 collect the wastewater, they flow back to the water supply pool in the recovery chamber 2 under the negative pressure suction state, and then the water supply pool in the recovery chamber 2 supplies water to the spray chamber 3 and the water curtain chamber 4. This cycle repeats, and the water is recycled, which can greatly save water and allow the water to fully absorb the paint droplets and toxic volatile solvent gas emissions in the spray exhaust gas.

[0064] At the same time, a vertically arranged water curtain plate 12 is provided between the spray chamber 3 and the water curtain chamber 4. The top of the water curtain plate 12 is fixed to the lower surface of the partition plate 6, and the bottom of the water curtain plate 12 is fixed to the bottom of the spray paint box 1, such that the water curtain plate 12 separates the spray chamber 3 and the water curtain chamber 4. The plate surface of the water curtain plate 12 faces the workpiece conveyor line, and the top of the plate surface of the water curtain plate 12 corresponds to the position of the strip-shaped through hole 13. A rectangular pipe is provided on the strip-shaped through hole 13 facing the water curtain plate 12. Refer to Figure 3 As shown, in this embodiment, several through holes 13 are evenly distributed along the height direction of the water curtain plate 12. The several through holes 13 are arranged in a matrix. All the through holes 13 communicate the spray chamber 3 and the water curtain chamber 4 and form a flowing water pool at the bottom of the spray paint box 1.

[0065] The water curtain plate 12 in this embodiment separates the spray chamber 3 and the water curtain chamber 4 to form two chambers that respectively treat the spray exhaust gas; the plate surface of the water curtain plate 12 in the water curtain chamber 4 faces the workpiece conveyor line, and at the same time, the top of the plate surface of the water curtain plate 12 corresponds to the position of the strip-shaped through hole 13 of the partition plate 6, such that the water flow in the water supply pool of the recovery chamber 2 supplies water to the water curtain plate 12 through the rectangular pipe. The water curtain plate 12 washes down the water flow in the form of a waterfall, and the spray exhaust gas of the wine bottle painting on the workpiece conveyor line is sprayed into the waterfall-like water flow to absorb the paint droplets and toxic volatile solvent gas emissions in the spray exhaust gas;

[0066] Meanwhile, all the through holes 13 designed on the water curtain plate 12 connect the spray chamber 3 and the water curtain chamber 4. The water flow in the water curtain chamber 4 will flow through the through holes 13 into the spray chamber 3 and gather in the flowing water pool at the bottom of the paint spraying box body 1. At the same time, after the paint spraying waste gas of the wine bottles on the workpiece conveyor line is washed by the waterfall-like water flow, part of the paint spraying waste gas will enter the spray chamber 3 and be mixed and absorbed again with the water flow in the spray chamber 3, reducing the emissions of paint droplets and toxic volatile solvent gases in the paint spraying waste gas.

[0067] See Figure 1 As is known, openings for the workpiece conveyor line to pass through are respectively provided on both sides of the paint spraying box body 1. The workpiece conveyor line includes a conveyor chain 5. The conveyor chain 5 passes through the openings on both sides of the paint spraying box body 1 in the conveying direction. Several supporting seats for supporting wine bottles are evenly distributed on the conveyor chain 5 along its driving direction. A wine bottle paint spraying device for spraying paint towards the workpiece conveyor line is provided inside the paint spraying box body 1. In this embodiment, the wine bottle paint spraying device uses an electric paint spraying machine with the brand of Wufu and the model of P-922, but it is not limited to using this model device, and other wine bottle paint spraying devices can also be used.

[0068] In this embodiment, several supporting seats evenly arranged along the conveyor chain 5, each supporting seat is used to support a wine bottle, drive the wine bottle to pass through the paint spraying box body 1 along the conveying direction of the workpiece conveyor line, and the wine bottle paint spraying device inside the paint spraying box body 1 sprays paint on the wine bottles on each supporting seat. The operation is convenient and simple, without the need for manual spraying, greatly reducing the impact on the physical health of the staff.

[0069] During use, the conveying direction of the workpiece conveyor line is perpendicular to the spraying direction of the wine bottle paint spraying. The spraying direction of the wine bottle paint spraying on the workpiece conveyor line has a diversion inclined plate 11. The diversion inclined plate 11 is arranged in the water curtain chamber 4, and the top of the diversion inclined plate 11 is fixedly connected to the partition plate 6. In this embodiment, the openings provided on both sides of the paint spraying box body 1 are for the workpiece conveyor line to pass through inside the paint spraying box body 1, so that the paint spraying waste gas generated during the paint spraying process of the workpiece conveyor line is in a relatively enclosed environment, avoiding affecting the surrounding environment and facilitating the transfer of the wine bottles into the paint spraying box body 1 in the direction of the workpiece conveyor line for paint spraying treatment.

[0070] In addition, the conveying direction of the workpiece conveyor line is perpendicular to the paint spraying direction of the wine bottle paint spraying. At the same time, the diversion inclined plate 11 arranged in the paint spraying direction of the wine bottle paint spraying on the workpiece conveyor line is to divert the paint liquid generated during the paint spraying process into the flowing water pool, and the paint spraying waste gas generated during the paint spraying process will follow the spraying direction of the paint liquid towards the water curtain chamber 4, and the water curtain chamber 4 conducts water absorption treatment on the paint spraying waste gas.

[0071] Meanwhile, this embodiment further includes a microprocessor. A spray pipe 14 is installed in each spray hole and is oriented towards the spray chamber 3. An electromagnetic valve for opening and closing the spray pipe 14 is arranged in each spray pipe 14. All the electromagnetic valves are electrically connected to the microprocessor in common. The end of the spray pipe 14 facing away from the partition plate 6 is communicated with a spiral nozzle 15.

[0072] In this embodiment, the spray holes communicate the water supply pool of the recovery chamber 2 with the spray chamber 3. When the recovery chamber 2 is in a negative pressure state, the water flow in the flowing water pool is sucked through the negative pressure pipeline 10 and introduced into the water supply pool of the recovery chamber 2. The microprocessor issues instructions to all the electromagnetic valves, and all the electromagnetic valves open the spray pipes 14, so that the water flow in the water supply pool flows through the spray pipes 14 to the spiral nozzles 15. The spiral nozzles 15 can spray the water flow towards the spray chamber 3 in a spiral shape, so as to spray and absorb the paint waste gas floating in various parts of the spray chamber 3 and collect it into the flowing water pool, thereby reducing the emissions of paint droplets and toxic volatile solvent gases in the paint waste gas.

[0073] On the top of the paint spraying box body 1, a negative pressure fan 8 and an exhaust pipe 7 are arranged side by side. The negative pressure fan 8 and the exhaust pipe 7 are respectively communicated with the recovery chamber 2. The negative pressure motor is used to provide a negative pressure environment in the recovery chamber 2. Control valves are arranged in the exhaust pipe 7 and the rectangular pipe. The control valves are also electrically connected to the microprocessor. The microprocessor can respectively control the opening and closing of the control valve of the exhaust pipe 7 and control the opening and closing of the rectangular pipe by controlling the control valve in the rectangular pipe.

[0074] In this embodiment, the negative pressure fan 8 can suck air in the recovery chamber 2, so that a negative pressure is generated in the recovery chamber 2. During this process, the control valves close the exhaust pipe 7 and the rectangular pipe, and the electromagnetic valves close the spray pipes 14, so that a closed space is formed in the recovery chamber 2. During the air extraction process of the negative pressure fan 8, the gas in the negative pressure pipeline 10 is also sucked outwards to generate a negative pressure, thereby sucking the water flow in the flowing water pool into the recovery chamber 2, and then supplying water to the spray chamber 3 and the water curtain chamber 4 through the water supply pool in the recovery chamber 2 to the spray pipes 14 and the rectangular pipe respectively.

[0075] See Figure 2 As shown, in this embodiment, the negative pressure fan 8 includes a protective cover arranged on the top of the paint spraying box body 1. A servo motor 9 is installed on the outer surface of the protective cover. The servo motor 9 is provided with an output shaft extending towards the protective cover and passing through the protective cover. A rotating block 18 is fixed on the free end of the output shaft. A plurality of negative pressure blades 19 are evenly distributed along the circumferential direction of the rotating block 18. All the negative pressure blades 19 face the recovery chamber 2 and are communicated with the recovery chamber 2.

[0076] In this embodiment, the servo motor 9 drives the rotating block 18 to rotate with its output shaft, and the rotating block 18 drives all the negative pressure blades 19 to rotate and suck the air in the recovery chamber 2, so as to generate negative pressure in the recovery chamber 2. The negative pressure is used to suck the water flow in the flowing water pool through the negative pressure pipeline 10 and introduce it into the water supply pool of the recovery chamber 2.

[0077] The negative pressure pipeline 10 designed in this embodiment can suck the wastewater containing paint droplets and toxic volatile solvent gas emissions in the flowing water pool into the water supply pool of the recovery chamber 2, and under the negative pressure suction state of the recovery chamber 2, mix the paint droplets and toxic volatile solvent gas emissions contained in the flowing water pool with air under negative pressure, greatly improving the rapid absorption of paint droplets and toxic volatile solvent gas emissions in the flowing water pool; at the same time, during the suction process of the negative pressure pipeline 10, the water flow is mixed with air and concentrated in the water supply pool of the recovery chamber 2, and then sprayed from the water supply pool towards the spray chamber 3 through the spiral nozzle 15. Because the air is mixed with the water flow, the jet impact force of the spiral nozzle 15 is stronger, effectively absorbing more than 80% of the paint droplets and toxic volatile solvent gas emissions in the spray exhaust gas. The spray exhaust gas discharged later no longer needs to be treated additionally, and the exhaust gas discharged to the external environment meets the national environmental protection requirements, reducing the treatment steps of the spray exhaust gas discharged later, saving energy and increasing efficiency, and greatly improving the production efficiency.

[0078] The above are only embodiments of the present invention, and common general technical solutions and / or characteristics in the solutions are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can still be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A waste gas collection system for recycling the waste gas generated during the spray painting of wine bottle bodies, comprising: A spray painting box body configured with a workpiece conveying line through which wine bottles are passed for spray painting; A recovery chamber configured to be arranged at the top inside the spray painting box body, and a negative pressure pumping state is continuously formed inside the recovery chamber, which is used to absorb the paint droplets and toxic volatile solvent gas emissions in the spray painting waste gas; A spray chamber configured to be arranged inside the spray painting box body and below the recovery chamber. The spray chamber is communicated with the recovery chamber to form a water supply pool for supplying water to the spray chamber, and a spiral water flow is sprayed onto the paint droplets ejected on the workpiece conveying line; A water curtain chamber configured to be arranged inside the spray painting box body near the workpiece conveying line and below the recovery chamber. The water curtain chamber is communicated with the spray chamber to form a flowing water pool. The water curtain chamber is communicated with the water supply pool and flushes the paint droplets ejected on the work conveying line with water flow; The recovery chamber is communicated with the spray chamber through a negative pressure pipeline. During use, a negative pressure pumping state is formed inside the recovery chamber, so that a negative pressure state is formed in both the negative pressure pipeline and the spray chamber. The flowing water pool in the spray chamber is spirally sucked into the water supply pool of the recovery chamber through the negative pressure pipeline, and water is supplied from the water supply pool to the spray chamber for spraying and to the water curtain chamber for flushing.

2. The waste gas collection system for spray painting the bottle body of a wine bottle according to claim 1, characterized in that: A horizontally arranged partition is provided inside the spray painting box body. The periphery of the partition is fixed on the inner walls around the spray painting box body. The upper surface of the partition faces the recovery chamber and is located at the bottom of the water supply pool of the recovery chamber. The lower surface of the partition faces the spray chamber and the water curtain chamber. A plurality of spray holes facing the spray chamber and communicated with the spray chamber, and strip-shaped through holes facing the water curtain chamber and communicated with the water curtain chamber are opened on the partition.

3. The waste gas recovery and collection system for spraying the bottle body of wine bottles according to claim 2, characterized in that: A vertically arranged water curtain plate is provided between the spray chamber and the water curtain chamber. The top of the water curtain plate is fixed on the lower surface of the partition, and the bottom of the water curtain plate is fixed on the bottom of the spray painting box body, so that the water curtain plate separates the spray chamber and the water curtain chamber. The plate surface of the water curtain plate faces the workpiece conveying line, and the top of the plate surface of the water curtain plate corresponds to the position of the strip-shaped through hole. A rectangular pipe facing the water curtain plate is provided on the strip-shaped through hole. A plurality of through holes are evenly distributed along the height direction of the water curtain plate. All the through holes communicate the spray chamber and the water curtain chamber and form a flowing water pool at the bottom of the spray painting box body.

4. The waste gas collection system for spraying the bottle body of wine bottles according to claim 3, characterized in that: Windows for the workpiece conveying line to pass through are respectively opened on both sides of the spray painting box body. The conveying direction of the workpiece conveying line is perpendicular to the spraying direction of the wine bottle spray painting. A guiding inclined plate is provided in the spraying direction of the wine bottle on the workpiece conveying line. The guiding inclined plate is arranged in the water curtain chamber, and the top of the guiding inclined plate is fixedly connected with the partition.

5. The waste gas collection system for spray painting the bottle body of a wine bottle according to claim 2, characterized in that: It further includes a microprocessor. A spray pipe facing the spray chamber is installed in each spray hole. An electromagnetic valve for opening and closing the spray pipe is arranged in each spray pipe. All the electromagnetic valves are commonly electrically connected to the microprocessor. The end of the spray pipe facing away from the partition is communicated with a spiral nozzle.

6. The waste gas collection system for spraying the bottle body of wine bottles according to claim 1, characterized in that: The top of the paint spraying box body is respectively provided with a negative pressure fan and an exhaust pipe arranged side by side. The negative pressure fan and the exhaust pipe are respectively communicated with the recovery chamber. The negative pressure motor is used to provide a negative pressure environment in the recovery chamber. A control valve is arranged in the exhaust pipe and the rectangular pipe.

7. The waste gas collection system for spray painting the bottle body of wine bottles according to claim 6, characterized in that: The negative pressure fan includes a protective cover arranged on the top of the paint spraying box body. A servo motor is installed on the outer surface of the protective cover. The servo motor is provided with an output shaft extending towards the protective cover and passing through the protective cover. A rotating block is fixed on the free end of the output shaft. Several negative pressure blades are evenly distributed along the circumferential direction of the rotating block. All the negative pressure blades face the recovery chamber and are communicated with the recovery chamber.

8. The waste gas collection system for spray painting the bottle body of a wine bottle according to claim 1, characterized in that: A liquid suction hole communicated with the flowing water pool is opened at the bottom of the paint spraying box body. An infusion hole communicated with the water supply pool is opened at the top of the paint spraying box body. The liquid suction hole and the infusion hole are located on the same side of the paint spraying box body. The two ends of the negative pressure pipeline are respectively communicated with the liquid suction hole and the infusion hole.

9. The waste gas collection system for spray painting the bottle body of wine bottles according to claim 1, characterized in that: The workpiece conveying line includes a conveyor chain. The conveyor chain passes through the paint spraying box body in the conveying direction. Several support seats for supporting wine bottles are evenly distributed on the conveyor chain along its transmission direction. A wine bottle paint spraying device for spraying paint towards the workpiece conveying line is arranged in the paint spraying box body.

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