The crushers can be divided into medical lithotripters and mining crushers according to the major categories. The principle of mining gravel is suitable for the hard rock crushing of massive mines. Its typical granite discharge granularity is ≤40mm, accounting for 90%. The machine can process materials with side lengths of 100~500mm and its compressive strength is up to 350MPa. The crushing ratio is large, and the material after the crushing has the advantages of cubic particles. Mining gravel machinery refers to a crushing machine with a particle size greater than three millimeters in the discharge, accounting for more than 50% of the total discharge.
According to the major categories, crushers can be divided into medical crushers and mining crushers. Among them, the medical lithotripter is mainly used for crushing stones, and generally uses resonance to break the stones to avoid various risks brought by surgery.
The mining crusher mainly performs crushing operations on various types of stone materials. According to the principle of crushing and the different particle sizes, it is divided into many models. The crusher is widely used in many sectors such as mining, smelting, building materials, roads, railways, water conservancy and chemical industries. Commonly used crushing machines include jaw crusher, impact crusher, vertical impact crusher, hydraulic cone crusher, ring hammer crusher, hammer crusher, roller crusher, composite crusher, cone crusher Machine, double crusher, rotary crusher, mobile crusher, etc.
The working principle of different types of crushers is also completely different. Take the ring hammer crusher as an example:
The hammer crusher mainly relies on the impact energy to complete the crushing material operation. When the hammer crusher is working, the motor drives the rotor to rotate at high speed, and the material enters the crusher cavity evenly. The high-speed rotary hammer impacts and shears the tearing material, causing the material to be broken. At the same time, the gravity of the material itself causes the material to The high-speed rotating hammer head rushes toward the baffle and the screen strip in the frame body. In the lower part of the rotor, a sieve plate is arranged, and the size of the pulverized material smaller than the mesh size is discharged through the sieve plate, and the material larger than the mesh size is retained in the sieve plate. Continue to be hit and grinded by the hammer until it is broken to the required discharge size and finally discharged through the sieve plate.