operating principle of impact crusher

Impact crusher, sand making commonly known, is an internationally advanced level of high-energy low impact break, whose performance plays an irreplaceable role in a variety of fine ore broken equipment, is the most effective, practical and reliable gravel machine.

Impact crusher is suitable for crushing soft or medium hard and extremely hard materials, plastic, widely used in various ores, cement, refractories, aluminum where the soil clinker, carborundum, glass raw materials, mechanisms, building sand, construction aggregate, artificial sand and various metallurgical slag crushing and coarse grinding jobs, especially for silicon carbide, carborundum, sintered bauxite, Misa high-hard, extra hard and abrasion resistance of materials is higher than other types of crushers yield efficacy . In the engineering field, it is manufactured sand, cushion material, asphalt concrete and cement concrete aggregate ideal production equipment. In the mining sector, impact crusher is widely used in the preceding grinding process, can produce large amounts of iron ore fines, reducing the high cost of grinding load.

Because of its excellent low wear characteristics, impact crusher for high abrasion and secondary crushing disintegration of production use. In addition, because of the product’s zero pollution, impact crusher function well adapted to the production of glass quartz sand and other high purity materials in, 10-500t / h production capacity, impact crusher can meet almost any production requirement.

Feeding way impact crusher

  • 1. Overflow feed, feed impeller same granularity. Such material situation to the next, to the amount of material into the impeller to achieve full load operation (ie, all motor power play), when further increase feed on overflow into the outer whirl crushing cavity of the impeller.
  • 2. Waterfall falling into the material, when the feed size is greater than the second impeller feed size, you need to feed the mouth from two materials respectively.

operating principle of impact crusher

Its working principle aspects of impact crusher, the simple point that is stone hit stone works. Ore hopper into the impact crusher, feeding through the feeder tube into the center of the impeller. When the material into the high-speed rotation of the impeller, the impeller being rapidly accelerated up to several times its acceleration as well as several hundred times the acceleration of gravity. Then, in order to speed 70-100m / s from impeller projectile out, first with the free fall into the eddy crushing material impact outside the cavity of the impeller and broken, and the impact on the whirl together material bed crushing cavity, is bed material impact on the rebound to the top of the eddy oblique crushing chamber, but also to change its direction of motion, deflected downward movement, turns materials Road emitted from the leaves to form a continuous material curtain. Thus, a material in the crushing cavity whirl twice or even more times by the impact crushing effect. Throughout the crushing process, the material is self mutual impact and broken, not in direct contact with the metal components. Because the material from the impeller circumference Road emitted oblique impact, the formation of the material in the whirl crushing rotational motion of the bed on the cavity material, the material between the moving vortex generator friction effect, due to the impact of friction between crushed material is broken material discharged from the discharge port.

Notably, the overflow does not need to feed power consumption and increase the cost of the wear of the crusher, but the increase of the crushing chamber inside the particle density of the particles increases the crushing cavity whirl frequency impact and friction, the broken more effectively more of the particles to improve the energy efficiency.