Water Treatment Equipment for Large and Medium-Sized Workpieces with Electrostatic Painting Line

Equipment Description:

The water-cyclone spray booth adopts the method of upper air supply and lower exhaust, and the paint mist collection device is located below the spray booth, which is suitable for large and medium-sized workpieces. The paint mist treatment equipment uses water as the medium and adopts the method of upper air supply and lower exhaust to fully mix the paint mist and water in the lower part of the spray booth. The plane of the water-cyclone spray booth can be large or small, which is suitable for high-level spraying of large and medium-sized workpieces.
Working principle of water cyclone spraying room: fresh air is sent into the pressure equalizing chamber at the top of the water cyclone spraying room through the air conditioning device, and after passing through the equalizing regulator and the filter layer, it is evenly sent into the room at an end wind speed of 0.45m/s. From top to bottom, the workpiece is placed in the equalizing layer with a certain wind speed, so that the splashing waste paint mist is pressed into the water cyclone of the water cyclone spraying room. The water is atomized under the impact of the high-speed airflow and fully mixed with the waste paint mist, so that the paint mist is attracted to the water and taken away. After the air-water separation, the clean air is sent into the atmosphere through the exhaust system, and the purification rate of the paint mist is ≥98%; the water containing paint mist flows into the circulating water pool, and after condensation purification (coagulant is regularly added to the water), it is sent to the spraying room for recycling by the circulating pump. The floating paint residue is regularly fished out and buried or incinerated.
Application scope of water cyclone spray booth: household appliances, bicycles, household and commercial steel furniture, automobile, motorcycle parts and surface spraying, instrument housing, electrical cabinets, agricultural machinery, sports equipment, and others.

Main structures and components:

1. Basic frame system

1. Spray painting cabin
Material: double-layer cold-rolled steel plate (inner wall covered with epoxy anti-corrosion coating)
Partition: spray painting operation area, hydrocyclone power area, exhaust gas treatment area
Sealing design: pneumatic sliding door + silicone sealing strip (air leakage rate <3%)
2. Circulating water system
High-pressure water pump: stainless steel multi-stage centrifugal pump (pressure 0.4-0.6MPa)
Hydrocyclone generator: conical vortex cylinder (316L stainless steel, swirl angle 15°-25°)
Water tank classification: sedimentation tank → slag separation tank → PH adjustment tank
2. Core functional modules
1. Paint mist capture unit
Water Rotary grid array: multi-layer staggered swirl plates, paint mist collision rate> 98%
Water-gas mixing chamber: Venturi tube acceleration structure (wind speed 8-12m/s)
2. Air power system
Air supply unit: variable frequency centrifugal fan (air volume 3000-50000m³/h)
Exhaust purification tower: PP material packing tower (optional activated carbon adsorption layer)
3. Intelligent control system
PLC parameter adjustment: water pressure/air volume/temperature linkage control
Water level sensor: automatic alarm and water replenishment
Paint residue scraper: chain-type automatic cleaning device

II. Comparison of key parameters (with traditional water curtain type)

Note: The specific selection needs to be comprehensively designed based on the workpiece size (such as automobile/mechanical parts), the VOC content of the spraying material and the local environmental protection standards (such as GB16297-2025).

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.