MQP series spiral air crushing is the high-speed air to drive the material in the direction of tangential impact in the grinding chamber, shear and other comprehensive forces to break the material. After the compressed gas is released instantaneously through the Laval nozzle, the heat absorption effect is generated, which takes away the heat generated in the crushing process, so that the material can be crushed in a low temperature environment. The crushing principle is shown in the following figure: