1 the strong centrifugal force the material from the radial swing meditate, rotor between the precision of narrow gap in. At the same time by centrifugal extrusion, liquid layer friction, hydraulic impact force, the materials are initially dispersed.           Dispersion machine of high-speed rotation of the rotor at least more than 15m / s line speed, material under the strong hydrodynamic shear, liquid friction layer tear collision were fully dispersed. At the same time, through the stator slot high speed injection.           3 dispersion machine material constantly from the radial ejected at high speed, in the resistance of the material itself and the vessel wall changes the flow direction, at the same time in the rotor generated on, under the action of the axial suction and formed, two shares strong changes the turbulence. Material after several cycles, the final completion of the dispersion process.           Selection of key points           1 first to clear the use of equipment to achieve the desired results and purposes.           2 in addition to a detailed grasp of the nature of the material.           3 according to the material and then the mixer selection of the mixer.           4 once again to determine the operating parameters and structure of the design of the dispersion machine.           5 considering the cost of the equipment, the cost of the installation should be considered.