SCRUBBER

A scrubber is a device that is used to remove pollutants from industrial exhaust gases. In cement plants, scrubbers are used to remove sulfur dioxide (SO2) and other harmful substances from the flue gas that is generated during the cement manufacturing process . The scrubber itself is a type of spray tower without internals and is operated in counter current flow. Limestone scrubbers can be made of stainless steel, FRP or rubber-lined / coated carbon steel . The process of scrubbing involves spraying a mixture of limestone slurry over incoming flue gas. This creates a chemical reaction that removes or “scrubs” the toxins from the flue gas. Once the limestone slurry reacts with the incoming flue gas, it is converted to a gypsum slurry.