Wet dust collector

The XDP-WDC is a wet filtration dust collector engineered for industrial processes producing sticky, moist or combustible dusts—combining high airflow (2644–10562 m³/h) with water-film filtration to capture 3–30 µm particles and ≥90% of particles >10 µm.
The machine can be applied in metalworking, plating, painting/finishing, chemical processing, pigment and glaze production—any process generating moist, sticky or combustible airborne particles.

Working principle
Under the negative pressure created by the fan, the dust-laden gas enters the water-filtration module and comes into close contact with the liquid (typically water). Through inertial impaction between water droplets and dust particles and other collection mechanisms, the device effectively captures liquid or solid particles with diameters in the 3–30 μm range and also removes some gaseous pollutants. The water is entrained upward by the gas flow; in combination with the baffle and demisting unit, gas–liquid separation occurs and the liquid returns to the tank, achieving pump-free water recirculation. The system achieves a purification efficiency of ≥90% for particles larger than 10 μm.

Performance characteristics
Pump-free water-film design — operates without a recirculation pump, resulting in lower energy consumption and reduced failure points;
Hybrid wet-scrubber features — combines the advantages of immersion and self-priming wet scrubbers for high dust-removal efficiency;
Low resistance & anti-clogging — designed for low pressure drop and reduced tendency to block;
Broad dust handling capability — suitable for high-temperature, high-humidity gas streams, dusts with high electrical resistivity, and combustible/explosive dust-laden gases;
Combined dust and gas treatment — while removing particulate matter, the system also condenses water vapor and removes certain gaseous contaminants, providing simultaneous cooling and purification.

Device principle
When dust-laden gas is drawn into the collector inlet by the fan, the flow turns and impacts the water surface; larger particles fall directly into the water. Finer particles are carried with the gas through the S-shaped contraction–expansion channel formed between vane rows, where local velocity increases and the gas jet entrains water, generating abundant splashes, bubbles and fine mist for enhanced gas–liquid contact. In the S-shaped channel the sudden change of direction produces centrifugal forces that fling particles toward the outer wall, while the fine particles are captured by the water mist. After exiting the S-shaped channel, the gas enters the demisting chamber where its velocity drops; baffles (demisting elements) centrifugally separate entrained droplets, which fall and wash away collected dust. The water then returns to the storage tank. Cleaned gas is discharged by the fan, and sludge is removed periodically or continuously via the sludge discharge valve.