The machine can be mainly used for all kinds of suspension which contains fine particle with diameter of 0.005-15mm, the concentration of 1 - 40% and temperature of not more than 100 ℃. Also can be used for the separation of 3-phase mixture in which the solid’s density is higher than the liquid, and there is density difference (liquid-liquid-solid), and the separation of liquid-solid suspension and particles, especially for the suspension separation in which the filter cloth is difficult to regenerate, and its concentration & particle size changes lot.