Exhaust gases from copper casting processes carry high pollutant concentrations, while elevated temperatures and spark hazard make a baghouse filter solution unsuitable.
PM Engineering designed and manufactured a Venturi wet scrubbing system that achieves high collection efficiency while minimising flame propagation risk. The total hot exhaust gas flow (2,000 Nm³/h) passes through a precisely calculated converging-diverging throat, where high-pressure spray at optimised droplet sizing takes place. Due to the high velocities, superior gas–liquid mixing is achieved, causing pollutants to agglomerate and be carried into the collection vessel. A downstream mist eliminator section enables water recirculation, reducing consumption.
