Centrifuge is a machine which uses high-speed rotation to separate the components of liquid and solid particles or liquid and liquid mixture. The centrifuge is mainly used to separate the solid particles in the suspension from the liquid, or separate two kinds of liquid with different density and immiscible in the emulsion (such as separating cream from milk); it can also be used to remove the liquid in the wet solid, such as drying wet clothes with a washing machine; the special super speed tube separator can also separate gas mixtures with different densities; the use of the centrifuge is different Some centrifuges can also classify solid particles according to their density or particle size.