It is mainly composed of fixed devices such as wavy blades, plates, and clamps. In wet desulfurization, the absorption tower is prone to generate "fog" with a particle size of 10-60 microns during operation. The "fog" does not contain water, and it also dissolves sulfuric acid, sulfate, sulfur dioxide, etc. It also causes contamination and severe corrosion of fans, heat exchangers, and flue. Therefore, the wet desulfurization process requires the absorption equipment to remove fog, The purified gas needs to be demisted before leaving the absorption tower.

Mist eliminators are used to separate liquid droplets carried by gas in the tower, ensuring mass transfer efficiency, reducing valuable material loss, and improving the operation of the compressor behind the tower. Generally, mist eliminators are often installed at the top of the tower. It can effectively remove 3-5 μ m of fog droplets. If a mist eliminator is installed between the trays, the mass transfer efficiency of the trays cannot be guaranteed, and the spacing between the plates can also be reduced. So the mist eliminator is mainly used for gas-liquid separation. It can also be used for gas separation as an air filter. In addition, wire mesh can also serve as a buffer for various instruments in the instrument industry, such as an electronic shield to prevent electromagnetic interference.

The common layout forms of mist eliminators include flat panel layout and roof layout.