The working principle of the spray booth The working principle of the spray booth The working principle of the spray booth
1. Advantages of dry spray booth
The structure is simple, the ventilation volume and the wind pressure are uniform, the coating loss is small, and the coating efficiency is high. Since water is not used, it is not necessary to carry out wastewater treatment, and the operation cost is low. The dry spray booth is one of the most technically complete spray booths in the world. It has changed the pollution of the old spray booth work area, the paint spray treatment ability is poor, the safety is poor, the performance is unstable, and the environmental protection requirements cannot be met. . The dry spray booth has the advantages of advanced design, reasonable structure, beautiful appearance, high efficiency of paint mist treatment, stable performance, safety and reliability, good rigidity and no shadow. The dry spray booth is mainly composed of a chamber system, a passive air inlet filter system, a paint mist filter system, an organic waste gas treatment system, an exhaust system, a lighting system, and a control system.
2. Water curtain spray booth
The water curtain spray booth is a wet processing equipment. The front of the equipment is a water curtain board, the water curtain board is an overflow tank, and the water curtain board is a multi-stage water curtain filter. When painting, the paint mist entering the spray booth first meets the water curtain and is washed into the water tank. The rest of the paint mist is completely intercepted in the water as it passes through the multi-stage water curtain filter. The water in the water tank is lifted by the water pump to the overflow of the water curtain and the multi-stage water curtain filter, and overflows to the water curtain plate to form a water curtain. The water curtain spray booth interior is made of stainless steel "target=_blank> stainless steel water curtain panel. The structure of the water curtain panel is advanced and reasonable, ensuring the indoor airflow speed, improving the paint lacquering rate and the residual paint capture rate. Reliable, non-disruptive with waterless splash. The scroll device, the gas-water separation baffle can be assembled, the disassembly and setting method can fully wash and separate the residual paint and soda, which can achieve the purification environment and convenient and effective solution to the cleaning and preservation of the paint residue. The problem is particularly convenient for maintenance. The water curtain spray booth consists of the chamber body, the sink, the stainless steel "target=_blank> stainless steel water curtain plate, the water circulation system, the exhaust filter system, etc., which can effectively prevent the waste paint from being discharged while the workpiece is being sprayed normally. polluted environment.
Water curtain spray booth working principle:
The workpiece is fed into the spray booth through the overhead conveyor or placed on the table. The operator sprays the workpiece with a hand-held electrostatic spray gun or a stationary rotor spray gun. Using an electrostatic spray gun, the paint mist capture effect is good. The scattered spray paint mist is sucked to the water curtain for purification with the airflow, and after being sprayed and purified, the purified gas is discharged to the outside through the gas-water separation device. The paint mist captured by the water curtain oozes into the water tank with the water flow, and is pumped and filtered by the water pump, and the paint residue floats on the water surface. Then, the paint coagulant is added into the pool, and the paint residue is condensed into a loose mass, and then the container is used for centralized treatment to keep the water clean, thereby completing the purpose of purifying the paint mist.
Water curtain spray booth application range: workpiece spraying in machinery, auto parts, metal products, decorative parts, home appliances, furniture and other industries.
Water curtain spray booth is suitable for: single-side spraying, or multiple sets of double-sided spraying.
3. No pump spray booth
The pumpless spray booth uses air-induced water to form a circulating water curtain. After the air with the paint mist collides with the water curtain, it enters the gas-water passage through the water curtain, and it is strongly mixed with the water in the channel. When entering the gas collection box, the flow rate suddenly decreases, the gas and water are separated, and the air passes through the water. After the board is discharged to the atmosphere by the exhaust fan; the separated water flows into the overflow tank after the gas collection tank is collected, and the water overflows from the overflow tank to the flooding plate to form a water curtain and flows back to the water tank. A special flocculant is added to the circulating water to change the adhesion of the paint mist, so that the paint mist is formed into a slag block for easy cleaning.
Principle: The high-efficiency water extraction is induced by the exhaust air, and the air exhaust system and the water lifting system are combined into one to form a water-free system with no pump, which saves the entire water pump circulating water supply system, simplifies the structure and reduces the floor space; After the pump-free circulating water supply is realized, the fatal defects of the existing various pump water supply systems are easy to be blocked by the paint slag, the maintenance is simple, the equipment performance is reliable, the fault is not easy to be used, and the use is convenient; the air containing the paint mist passes through the water curtain and the water The curtain and the gas-water passage are strongly mixed with the water mist to form a multi-stage purification process, which improves the purification efficiency.
4. Water spray paint booth
The water-rotating spray booth is powered by the upper air supply, and the paint mist trapping device is located below the spray booth, which is suitable for large and medium-sized workpieces. The water mist is used as a medium, and the paint mist processing device which thoroughly mixes the paint mist and the water in the lower portion of the spray booth is adopted by means of air suction under the upper air supply. The spray booth of the water spray booth can be large or small, suitable for advanced spraying of large and medium-sized workpieces.
Water-rotating spray booth application range: household appliances, bicycles, household and commercial steel furniture, automotive, motorcycle parts and surface coating, instrumentation housing, electrical cabinets, agricultural machinery, sports equipment, and others.
The principle of water-rotating spray booth: fresh air is sent to the pressure equalizing chamber at the top of the water spray paint chamber through the air-conditioner air supply device. After the flow regulating device and the filter layer, the air is evenly sent into the chamber at a wind speed of 0.45 m/s. In the body, from top to bottom, the workpiece is placed in a uniform layer with a certain wind speed, so that the splashed waste paint mist is pressed into the water spray booth water swirler, the water is atomized after the impact of the high-speed airflow and the waste paint mist Fully mixed, so that the paint mist is attracted to the water and taken away. After the moisturey air is separated by the gas and water, the clean air is sent to the atmosphere through the exhaust system, and the purification rate of the paint mist is ≥98%; The water containing the paint mist flows into the circulating pool, and is condensed and purified (the special coagulant is added regularly in the water), and then sent to the spray booth by the circulation pump for recycling. The floating paint slag is periodically removed and then deeply buried or incinerated.
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Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
EVA (ethylene - vinyl acetate copolymer) waterproof board productìon technology adopt domestic advanced two-section co-extrusion single screw extrusion method to manufacture. The raw materials resin EVA adding enhancers and antioxidants, through heating melting , plasticizing ,extrusion molding and traction to form the board.
Performance Characteristics:
Chemical corrosion resistance, UV radiation resistance; anti-aging , good wear resistance; strong puncture resistance; the construction is simple, easy construction and non-pollution.
Executive Standard:
TB/T 3306.1-2014 GB18173.1-2012
Specification:
Thickness: 1.0-3.0mm Width: 1- 3m
Application:
New railways , highways , municipal roads , light rail traffic construction (including bridges , tunnels) , roofing , underground project waterproofing , water conservancy construction , sewage treatment projects . landfill , chemical acid-base treatment pond environmental protection projects anti-seepage and corrosion resistance liner usage.
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