Electrostatic Painting Line for Water Curtain Spray Booth with Pumpless Water Circulation System and Simplified Structure

Equipment Description:

The pumpless water curtain spray booth uses air-induced water extraction to form a circulating water curtain. After the air containing paint mist collides with the water curtain, it passes through the water curtain and enters the air-water channel, where it is strongly mixed with the water in the channel. When it enters the air collecting box, the flow rate suddenly decreases, and the air and water are separated. After the air passes through the water baffle, it is discharged into the atmosphere by the exhaust fan; and the separated water is collected in the air collecting box and flows into the overflow tank. The water overflows from the overflow tank to the flooding board to form a water curtain and flows back to the water tank. Special flocculants are added to the circulating water to change the adhesion of the paint mist, so that the paint mist forms slag blocks for easy cleaning. Principle: By using the high-speed exhaust air to induce water extraction, the exhaust system and the water extraction system are combined into one to form a pumpless water circulation system, that is, the entire water pump circulation water supply system is omitted, the structure is simplified, and the floor space is reduced; after realizing the pumpless circulation water supply, the fatal defect of the existing various types of water pump water supply systems that are easily blocked by paint residue is overcome, maintenance is simple, the equipment performance is reliable, it is not easy to fail, and it is easy to use; because the air containing paint mist passes through the water curtain, water curtain, and the air-water channel and is strongly mixed and stirred with the water mist, a multi-stage purification process is formed, which improves the purification efficiency.
Working principle of pumpless water curtain spray paint room: When working, the workpiece is placed on a rotatable working platform set in the front room, and the painter sprays paint facing the workpiece in the front room. The airflow from the outside to the inside is formed in the front room due to the suction effect of the fan, and the paint mist formed by the spraying is processed through the spraying room and discharged from the workshop, ensuring that the workshop and the working environment of the painter are not polluted by the paint mist. At the same time, the paint mist is discharged after being treated by water when passing through the spraying room. The through-type front room is used for large-scale painting operations of small and medium-sized workpieces. The workpiece is passed into the spray booth from one side of the spray booth with a hanging chain and passed out from the other side. The painter completes the painting work when the workpiece passes through the front room.
Application scope of pumpless water curtain spray booth: painting and paint mist filtration operations in various industries such as machinery, electrical instruments, light industry, aircraft, locomotives, etc.

Main structures and components:

1. Main frame structure

1. Spray booth body
Material: galvanized steel plate/stainless steel, anti-corrosion treatment
Structure: modular design, including work area, water curtain area, filtration area
2. Water curtain forming system
Water curtain plate: inclined guide plate to form a uniform water film
Overflow tank: top water storage, forming a continuous water curtain by gravity
Circulating water tank: bottom water collection, equipped with sedimentation and filtration layers

2. Core functional components

1. Air power system
Exhaust fan: variable frequency control, maintain negative pressure environment (air volume 2000-30000m³ /h)
Guide plate group: guide the airflow to fully contact the water curtain
2. Water-gas separation device
Water-retaining folding plate: multi-layer wave-shaped structure, intercepting paint-containing water mist
Air-water separator: centrifugal separation of residual water droplets
3. Filtration system
Primary filter cotton: intercept large particles of paint mist (G4 grade)
Fine filter layer: activated carbon/glass fiber composite filter material (optional)
4. Auxiliary system
LED explosion-proof lighting: ≥800Lux illumination
Automatic water replenishment valve: maintain constant water level
Paint residue collection tank: detachable design

3. Technical features comparison table

Features:

1.High cost performance: Based on the customer's product positioning and development strategy, and with economic affordability as the foundation, we achieve the best cost performance.
2.The advanced and meticulous design concept of the equipment, along with the highly automated industrial equipment, showcases the image of a modern and advanced enterprise.
3. It has high adaptability, meeting the current production requirements and reserving room for development, taking into account the needs of increased production and improved quality in the future.
4.Quality compliance strictly adheres to the ISO900 quality management system, with every minute detail of the entire equipment installation being strictly controlled.