Integrated Dust and VOCs Control Project – Anhui Welding Industry

Client: Welding equipment manufacturing enterprise in Anhui, China

System Type: Cartridge dust collector + catalytic oxidation (RCO) system

Pollution Source

Dust: Generated from welding operations and alcohol wiping processes

Key Pollutants:

1. Toluene
2. Xylene
3. Fine metal dust particles

System Design Highlights

1. Oil Removal Unit – Pre-treatment of oily fumes before entering the dust collector
2. Cartridge Dust Collector – Equipped with clip-in cartridge filters for efficient fine dust capture
3. Adsorption Tower – Absorbs VOCs prior to catalytic oxidation
4. Online Desorption + Catalytic Combustion – Regenerates adsorption media and oxidizes VOCs at low temperature
5. Exhaust Fan System – Maintains system pressure and stable airflow

Performance Parameters

1. Air Volume: 30,000 CMH
2. VOC Concentration (Post-treatment): 8–12 mg/m³
3. Filtration Efficiency: ≥99.98% @ 0.2–2 microns
4. Emission Compliance: Fully compliant with China’s GB environmental standards

Comprehensive Control

Simultaneous removal of solid particulates and VOC gases

Efficient Layout

Modular structure, easy maintenance, and low operating cost

Safe and Reliable

Tailored design for flammable organic compounds like toluene and xylene

Clean Emission

Stable discharge well below emission limits