Description

Coal crusher is the main crushing machine used in coal crushing plant. Coal crushing plant consist of many types of crushers, vibrating feeder, screen and grinding mills.

The Toothed Roll Crusher is applicable to the industries of coal, metallurgy, mineral, chemical and construction materials, and It is more suitable to crushing raw coal (included gangue) of big coal mine or coal separating plant. The electrical motor and speed reducer is connected by distance limited hydraulic turbo coupling, which prevents the dynamic overload and sensor overload for safe operation. The distance between the toothed rolls is adjusted by hydraulic and the bearing of the toothed rolls is centralized lubricated. It has the features of optimal designing of gear shape, the choice crushing between tension and cutting, high efficiency with low consumption, uniform production size

Coal crushing can be divided into two categories according to their position in the production system such as crushing preparations and finally crushing. Crushing preparations work for the next operational requirements of the particle size for crushing operations; finally broken coal is broken to the required size of the operation of commercial coal. Coal crushing commonly used mechanical method. In a variety of crushing machines of coal, we often dominated by a kind of broken way, accompanied by other fragmentation methods.

There are two coal crushing operation systems: open systems and closed-circuit crushing system. Open crushing system is used on the product's size is not strictly required, or crushed when the situation does not produce too large, while closed-circuit crushing system called loop crushed system, broken product for less than the specified size must be strictly guaranteed, while the crusher machine itself cannot meet this requirement of the situation. Crushed in the closed-loop system, the crushed product to check through the screen, screen then return to the coal crusher, until through the screen so far.