Mill type 140,150,175 represents the diameter of the grinding disk is 140 mm, 150 mm and 175 mm respectively, the mill is a kind of equipment to mix solid particles with liquid, widely used in coal mine, metal mine, construction engineering and other industries, its working principle is through the high-speed rotor and stator, solid particles and liquid friction abrasion, in the machine constantly mixing and stirring, and finally form slurry.