The framework column of the water spin paint booth adopts the framework. The column and the beam are both made of profile steel, and the surface is subject to anti-corrosion treatment. The wall plate adopts 75mm rock wool sandwich plate, and the inside and outside are 0.5mm galvanized color steel plates. U-shaped plug connection is adopted between the wall plates, and U-shaped groove connection is adopted between the wall plates and the framework. The whole splicing joint is coated with sealant, and the strength, stability, thermal insulation, sealing, impact resistance, durability and noise meet the requirements of national or industrial standards.

It is composed of a dynamic pressure chamber (i.e. an air supply chamber) and a static pressure chamber. The height of the dynamic pressure chamber is about 1000mm. It adopts the all steel welded structure of the profiled steel skeleton box plate. The air is evenly distributed into the static pressure chamber through the distributor and the non-woven fabric bag filter; The static pressure chamber is set at the lower part of the dynamic pressure chamber, with a height of about 1200 mm, so that the fresh air can flow evenly to the operation room after preliminary filtration. The filter material of the distribution layer of the static pressure chamber is supported by a C-shaped top net, and a movable pressure frame is set to prevent the distribution layer from floating.

Customizable, such as electric opposite door, manual opposite door, flexible door, etc. customers can choose by themselves; If there are small workpieces, it is recommended to use flexible doors. The flexible doors of small workpieces are closed and the large workpieces are opened, which can save energy and improve the working environment; Lighting glass is installed on both sides of the room, and 5mm thick tempered glass is used to increase the indoor light intensity.

A flashing warning light is set on the top of the front end of the gate to remind the staff of the working state in the room. When the green light is on, the spray booth is in normal working condition; It is in fault state when the red light is on; When no light is on, it is in the stop use state.

A pit sump is set at the bottom of the chamber, and a grid plate is laid on the top of the chamber, which is hot-dip galvanized after processing, so as to avoid the waste newspaper and waste tape generated by the scribing and pasting of the decorative tape during the painting of the workpiece from entering the underground structure pool. Grid hole size ≤ 40 × 40mm, 3 × 40mm flat steel, the floor is made of block assembly structure, which is convenient for disassembly and assembly.

The air inlet is installed with metal mesh to prevent birds and sundries from being sucked in. The air inlet is arranged indoors and the air outlet is arranged at high altitude to ensure that the exhaust gas will not be sucked in again; An air volume regulating valve is provided to regulate the air inlet volume to ensure the matching with the exhaust volume; The air valve conversion section is to realize the conversion of spraying and drying paint. It is composed of an air valve and an automatic air valve controller. The automatic air valve controller is a Swiss bellmo product with sensitive response and accurate action.

The fan case is made of profile as wall plate, composite metal frame structure, and equipped with one access door. The air box is equipped with primary and medium effect filters. The primary effect filter is a bag type non-woven fabric filter with aluminum alloy frame, and the type is four bag type. The synthetic fiber filter material vnf-290 of vnf "all-louders" series of the Netherlands "Filtrair" company is adopted, with a filtration accuracy of G3 and a filtration efficiency of ≥ 80%. Medium efficiency filtration adopts 5-bag aluminum frame non-woven fabric filter, with filtration accuracy of F5 and filtration efficiency ≥ 85%.

The fan adopts double suction bkkf explosion-proof centrifugal fan, which has the characteristics of good performance, high efficiency, beautiful appearance, compact structure, stable operation, and convenient installation and maintenance. The forced draft fan base is welded into a frame with channel steel and angle steel industrial profiles to bear the weight and vibration of one forced draft fan; Air supply pipes are all made of δ 1.2mm high-quality galvanized steel plate undercut production, without welding, to ensure that the pipeline is formed without deformation; A damping or elastic reducer is installed at the bottom of the fan. At the same time, we have designed a fan noise reduction room to ensure that the system noise is controlled below 75dBA

In order to ensure the adhesion between the paint film and the workpiece substrate in winter, it is generally required that the ambient temperature should be ≥ 15 ゜ C. the added heating device ensures the spraying effect of the operation at low temperature in winter and is integrated into the air supply system; According to the requirements of heating power value in winter, btg28p two-stage fire gas burner of Italian "Baltur" company is selected as the burner, which is safe and energy-saving

The synthetic fiber filter material product vnf-290 (G3) and the bag filter of the filter section of the air supply system can increase the cotton area of the air inlet by 3-4 times with the cloth bag structure. The adoption of this filter form can reduce the wind resistance, increase the dust capacity and reduce the replacement times

The Dutch "arresters" synthetic fiber filter material cc-600g (F5) is selected as the sub high efficiency filter material, which can filter out all particles that can damage the paint quality, and the dust content is 100% removed to ensure that the air flow passing through the paint booth is evenly diffused and forms a laminar flow state, which conforms to the fire classification standards of European din53438-f1 and American ul900-class1.

The circulating water pump lifts the water in the circulating water tank and injects it into the water injection pipe. The cantilever submerged pump is selected as the circulating water pump. Compared with the ordinary submerged pump, it has the advantages of small volume, high efficiency, good energy saving effect and reliable operation. It is suitable for conveying corrosive media without solid particles and abrasives.

The water spinner is composed of a circular power tube and an impact plate. The outlet of the power pipe is a tapered pipe orifice, and the air flow rate at the constriction orifice is 20-25m / s. The impact plate is a round thick plate. The plate surface is processed into several rhombus shapes or drilled with several holes to increase the disturbance of impact reflection. The water spinner is evenly arranged along the center line of the washing tank, with a spacing of 1000mm. The overflow of the water spinner is 70-100 mm higher than the bottom of the washing tank. Keep the washing tank at a certain level.

The baffle type air-water separation device is used to prevent some water droplets from cleaning the paint mist from being sucked into the ventilation duct and prevent the paint from adhering to the impeller of the exhaust fan and affecting the operation of the fan. Set 2-4 baffles. When the water mist collides between the baffles, the water mist condenses into large water droplets and flows down from the baffles to separate from the air. For water baffle δ 2mm thick stainless steel plate. For the convenience of cleaning, paint peeling agent shall be applied on the board surface or paper shall be pasted with butter to make the waste paint adhered to it easy to peel off.

If the water in the circulating water tank is used for a long time and has serious pollution, it needs to be regularly discharged to the centralized sewage tank of the factory for treatment. The sewage pump is designed with a special channel impeller with a wide flow channel and a reasonable pump body design, so that the pump body and the impeller can be optimally matched. The solid particles are not blocked, the ribbon fibers are not entangled, and the submersible work does not require a bottom valve. It is most suitable for discharging sewage

A circular chain electric hoist CD1 is set above the circulating water tank for the salvage treatment of paint slag. The rigid frame of the electric hoist and the steel platform of the air supply system are integrated to reduce the system cost.

Activated carbon adsorption + RCO catalytic combustion

The organic waste gas can be adsorbed by using the adsorption characteristics of activated carbon micropores, and the waste gas with low concentration, low temperature and hydrocarbon can be treated. The solvent can be recovered and reused, and the purification efficiency is as high as 90-95%. Activated carbon is a non-polar adsorbent with hydrophobic and organophilic properties. It can absorb most organic gases, such as benzene, aldehydes and ketones, alcohols, hydrocarbons, etc., as well as odor substances. After the adsorption is saturated, it can be desorbed and regenerated by hot air and put into use again

Molecular sieve zeolite runner adsorption + catalytic combustion

The zeolite runner concentration area can be divided into treatment area, regeneration area and cooling area. After collection and pretreatment, VOC organic waste gas enters the zeolite molecular sieve runner system. Through the continuous process of adsorption desorption concentration of zeolite molecular sieve runner, large air volume and low concentration organic waste gas is concentrated into small air volume and high concentration waste gas, and then enters the regenerative oxidation furnace for combustion purification, And effectively utilize the surplus heat released by the combustion of organic matter.

Combustible gas detection and alarm

device to ensure safety