When the solid particles in the suspension are large and the particle size is uniform, the pores of the filtered residue layer are relatively smooth, and the filtrate passes through the residue layer at a higher speed. The use of coagulants to aggregate fine particles into larger agglomerates is beneficial to improve the filtration speed. For suspensions with a fast sedimentation rate of solid particles, apply a filter fed on top of the filter medium to make the filtration direction consistent with the direction of gravity. The coarse particles settle first to reduce the blockage of the filter medium and the filter residue layer; in suspensions that are difficult to filter ( (Such as colloid) mixed with coarse solid particles such as diatomite, expanded perlite, etc., can make the filter residue layer loose; when the viscosity of the filtrate is large, the suspension can be heated to reduce the viscosity. These measures can speed up filtering.
