When there are chances of sparking dust catching fire or creating an explosion, usually a wet type of scrubbing collectors are employed. Water is mainly used for quenching or scrubbing the particles. This is a compact device compared to dry-type fabric dust collectors, however, there are problems of corrosion & secondary water pollution.
The design of the Om Engineering Venturi Scrubber consists of a "Wet Approach" venturi followed by a liquid entrainment separator. Dust-laden gases enter the venturi and instantly make contact with the tangentially introduced scrubbing liquid swirling down the venturi's converging walls. At the venture throat, the gas and liquid streams collide and the liquid breaks down into droplets that trap dust particles.
- This gas/liquid mixture passes through a flooded elbow and then enters the entrainment separator through a tangential inlet.
- Centrifugal action removes the heavy wetted particles from the gas stream.
- As an alternate, when very large diameter separators are required, the liquid is separated by passing the stream through a mist eliminator baffle.
- The dust/liquid mixture is discharged from the separator bottom drain and the cleaned gas leaves through the top of the separator.
