Different filter requirements and different types of filter equipment in the process of using the filter cloth put forward different requirements on the filter cloth, and the filter cloth only has scientific and appropriate selection of the filter cloth, so that the filter equipment can be effectively improved. Processing power and separation quality.
Before the selection of preparation work for filter cloths, to a certain extent, it is necessary to understand in detail the performance indicators such as the type of material, the purpose of separation, the production capacity, and the type of filter in the solid-liquid separation production process, so that a certain degree of selection can be made. Its suitable filter cloth.
The characteristics of the solid particles in the slurry of the filter cloth, the particle size, the particle size distribution range, the compressibility of the solid particles, the shape of the particles, and the true density of the solid. The characteristics of the liquid in the feed solution. Such as viscosity, density, acidity, oxidation-reduction, solubility to organics, and temperature.
The physical and chemical stability of the filter cloth material will effectively select the suitable filter cloth material to a certain extent according to the physical and chemical characteristics of the slurry during the operation process. The physical and chemical properties to be considered when selecting the filter cloth include the use temperature, tensile and deformation properties, chemical stability, solubility or swelling properties, and acid and alkali resistance.
The mechanical properties of the filter cloth, when used, should be selected according to the type of the filter to select the tensile properties, abrasion resistance, elongation, elasticity and other mechanical properties of the filter cloth. Such as belt type vacuum filter, filter cloth walking box type filter press, folding belt unloading type drum vacuum filter and other filtering equipment require that the filter cloth has good tensile properties.