Filter is one of the necessary equipment in the course of mineral processing. Depending on the pressure difference, it separates solid particle with liquid through the porous medium (including filter cloth, filter plate, etc.). Besides the pressure, filter carries on dewatering with the help of particle gravity itself and magnetic reunion during forming filter cake. It is widely applied in the industry of metal mine, non-metallic mine, coal, metallurgy, chemical, papermaking and other industries.
Vacuum filter is divided into cylinder-shaped (drum) filter, disk filter, horizontal belt filter based on different structure. Cylinder-shaped (drum) filter has also many types such as outer filtering, inner filtering, folding belt and permanent magnet outer filtering types. Disk filter is also divided into disk-type and ceramic filter.