Mining crusher principle adapt to massive mine hard rock crushing, the typical granite, the material particle size less than or equal to 40 mm accounted for 90%, the function deal with side length of 100 ~ 500 mm in the following materials, the maximum compressive strength of 350 MPa, with big crushing ratio, crushed material is cubic particle etc.. Mining gravel machinery is refers to the size of the particle size is greater than three mm in the total discharge amount of more than 50% of the crushing machinery.
According to the principles of broken, heavy mining machinery used crusher are jaw crusher, counterattack type crusher, vertical impact crusher, hydraulic cone crusher, type ring hammer crusher, hammer crusher, roller crusher, composite type crusher, cone crusher, the two-stage crusher, gyratory crusher, mobile crusher, etc..
Different types of crusher working principle is completely different, with ring hammer crusher as an example:
Hammer crusher is mainly rely on impact energy to complete the operation of the broken material. Hammer type crusher is working, the motor drives the rotor to rotate at a high speed, material evenly into the crushing chamber, high-speed rotary hammer impact and shearing tear material caused by the material being broken. At the same time, the material of its own gravity materials from the high-speed rotating hammer rushed to the frame body plate, screen, the lower part of the rotor, with sieve plate, crushing the material less than sieve size fractions discharged through the sieve plate, greater than the pore size of material resistance at sieve plate continue to be a hammer blow and grinding.