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.
After many years’ research and development of filter, the product series have formed, and NHI drew up industry standards. NHI has participated in drawing up and revising of washing mechanical products and upgraded the industry standards of vacuum filter. The company has given many technical seminars for washing related equipment. In the aspects of the filter technology and reformation, NHI is in the leading position and achieves great success. Our company has friendly cooperation relations with many mine enterprises in the domestic.