The goal of coal mining is to remove coal from the ground.There are four main types of coal mines: shaft mine, slope mine, drift mine, and surface (open-cast) mine. coal mining is need crusher or moible crusher,include some optional equipment such as vibrating feeder, vibrating screen, belt conveyors and so on to finish the coal milling process.
Vertical coal mill also called coal grinder is the most used machine for coal grinding according to our mining experience.Raymond mill is also the early coal mill, the capacity of this coal mill can be up to 6-8 t/p.Ball grinding mill is the early coal mill used in coal powder plant, there are two types, wet ball mill and dry ball mill.Raw coal is fed through a central coal inlet at the top of the pulverizer and falls by gravity to the rotating grinding table, mixing with classifier rejects returned for re-grinding.Centrifugal action forces the coal outward to the grinding ring where it is pulverized between the ring and three grinding rollers.
Coal mill include ball mill,raymond mill,vertical mill,MXB Gridning Mill.In coal crushing process, several types of coal crusher are used,such as jaw crusher,impact crusher,cone crusher and mobile crusher.Usually a complete coal milling line includes coal mill, impulse dust cleaner, piping device, cyclone collector device, classifier.
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