A grinder is a large solid raw material to the required size. The grinder is composed of coarse crushing, fine crushing, wind transmission and other devices, to achieve the purpose of the grinder in the form of high-speed impact. Using wind energy to become powder once, eliminating the traditional screening process. Mainly used in mining, building materials and other industries.
According to the size of the crushed material or crushed material, the grinder can be divided into coarse grinder, grinder and super micro grinder.
In the process of crushing, the external force applied to the solid includes shear, impact, crushing and grinding. Shear is mainly used for coarse crushing (crushing) and crushing operations, suitable for crushing or crushing of resilient or fiber materials and large materials; impact is mainly used for crushing operations, suitable for brittle material crushing; rolling is mainly used for high fineness crushing (ultra micro crushing) operations, suitable for most materials; grinding is mainly used for ultra micro crushing or super large crushing equipment, suitable for further crushing after crushing.
The actual crushing process is often several external forces acting at the same time, but the high-end grinder is tailored according to the crushing environment
When the grinder is operated, the motor drives the spindle and turbine to rotate at high speed (its speed is up to 700 r/min). The turbine and the grinding block on the screen ring are broken and ground, and its structure is compact. When the material enters the chamber from the hopper, the material entering the chamber closely rubs and strongly hits the inner edge of the turbine in the rotating air flow, and is ground again in the gap between the blade and the grinding block. At the same time, the turbine sucks in a large amount of air, and these gases play the role of cooling the machine, grinding the material and transmitting the material: the fineness of the material depends on the nature of the material and the size of the screen, as well as the passage of the material and air. The bearing part of the grinder (crusher) is equipped with a special maze seal, which can effectively prevent the dust from entering the bearing cavity, thus extending the service life of the bearing. There are two O-shaped rubber sealing rings inside the door, no dust leakage and pollution the operating environment.
