EHWD-CFH is a large-airflow wet dust collector with chain-scraper sludge removal and downstream G3/G4 pre-filtration, F9 medium-efficiency filtration and HEPA final filtration.

The wet collection stage removes the main particulate load before the airflow passes through the downstream dry filtration stages for progressively finer particle removal.

Standard airflow capacity ranges from approximately 2,500 to 50,000 m³/h, subject to the selected model and project requirements.

Equipment can be manufactured in corrosion-protected carbon steel, SUS304 stainless steel or SUS316L stainless steel according to process conditions.

Main components include the wet collection chamber, liquid-level control system, water tank, chain-scraper sludge removal system and vertically integrated G3/G4, F9 and HEPA filtration sections.

High-velocity gas-liquid contact and controlled water turbulence capture dust in the wet stage before the airflow enters the downstream G3/G4, F9 and HEPA filtration sections.

Settled sludge is continuously conveyed along the collector bottom by the chain-scraper system and discharged automatically, reducing manual sludge-cleaning work.

Smaller EHWD-CFH models use a single-turbine wave-generating structure, while larger models use a twin-turbine arrangement to support higher airflow requirements.

Typical applications include foundry sand handling, sandblasting, shot blasting, crushing and other industrial processes with medium-to-high dust loading and continuous sludge generation.

The main wet stage uses no spray nozzles and no filter cartridges or filter bags, helping reduce blockage risk, while the vertically integrated multi-stage filtration section makes efficient use of floor space.