The belt filter press is widely used for slag-water separation of various dregs materials and pre-dewatering of various domestic and industrial sludge, such as the vegetable leaves, distiller’s grains, beer residue, cassava residue, coffee residue, sweet potato residue, sugarcane, apple residue, starch residue, tea residue, sugar beet pulp, soybean residue, river sludge, cement plant sludge, urban domestic sewage, etc. It is widely applied in the industries of food, chemical, mining, mechanical processing, textile printing and dyeing, electroplating, coal washing, paper making and other industries.