Method of raising crushing efficiency of mechanical impact crusher

Abstract

The method of raising crushing efficiency of mechanical impact crusher is to seal the crushing chamber of mechanical impact crusher and to pump out partial air from the crushing chamber to air pressure lower than 0.07 MPa. The method can avoid the floating motion of the material particles and the linear motion of material particles increases the friction and crushing of material particles. The said method results in high crushing efficiency, low power consumption and high material recovering rate.

Description

technical field [0001] The invention relates to a method for improving the pulverization efficiency of a mechanical impact pulverizer. Background technique [0002] The mechanical impact pulverizer uses the impact elements (rods, blades, hammers, etc.) on the high-speed rotor around the horizontal or vertical axis to exert a strong impact on the material, and generate high-frequency vibration between it and the stator and between the materials. Equipment that is crushed by strong impact, shearing, etc. Mechanical impact pulverizers can usually only crush solid material particles to a size of 10 microns. As the solid material particles become smaller, due to the blocking and separation of solid particles by atmospheric pressure, the air film between the solid particles produces The lubricating and buffering effect, as well as the air resistance effect when the solid particles are moving, cause the efficiency of mechanical crushing to decrease rapidly and the energy consumpti...

AI Technical Summary

Problems solved by technology

Mechanical impact pulverizers can usually only crush solid material particles to a size of 10 microns. As the solid material particles become smaller, due to the blocking and separation of solid particles by atmospheric pressure, the air film between the solid particles produces The lubricating and buffering effect, as well as the air resistance effect when the solid particles are moving, cause the efficiency of mechanical crushing to decrease rapidly and the energy consumption to increase sharply. When the mechanical impact crusher crushes the solid material particles to a size of 10 microns, due to the Large and small material particles can already float in the air with the air flow. Under the action of air resistance, most of the energy transmitted by the high-speed rotor to the material particles that can float in the air will be absorbed by the air, and the material particles can only With the flow of air as the floating motion, no matter how the high-speed rotor exerts a strong impact on the material particles, the floating material particles cannot be broken.