subject: Coal crusher and coal mill use in coal mining plant [print this page] Jaw Coal Crushers are heavy duty double toggle machines designed for longlife service and minimum of maintenance for hard tough and / or abrasive material. The frame is made of heavy steel plates with reinforce members welded in place. It is fabricated as a unit with all bearings seats in place and stress relieved. The swing jaw pin is made of medium carbon steel. It is seated and clamped to the main frame. The swing jaw is freely pivoted on the shaft. PITMAN: Pitman is fabricated from M.S. plates alternatively in one pieve casting duly normalized. The pitman is machined to receive large size antifriction bearings and provision is made for grease lubrication. Sealing covers are provided to retain grease and exclude dirt. Recesses are provided in the bottom for centre toggle seats. Jaw plates are of non-choking design reversible and of Manganese steel containing 12 to 14% manganese conforming to IS276. they are clamped in position. Side plates are machined and are provided to act as protection for main frame against any wear due to material being crushed in crusher mouth.
Coal mill is major equipment of cement plant and used for drying and grinding coal. The equipment is mainly consisted of feed device, main bearings, rotating parts, drive device, selling device, high-voltage start-up device and lubrication system. The raw material is fed into mill by feeding equipment. The hot wind enters into the mill by inlet end. As the mill cylinder rotates, the coal and hot air exchange heat in the mill. The coal is crushed and grinded in the mill. When the coal is being grinded, the powder is brought out of the mill by the hot air going through the mill.
coal mill can handle all types of coal and is highly economical in terms of specific energy consumption.
Compact design: Grinds any type of coal Adaptable to specific process requirements Long service life of grinding parts Easy maintenance
Coal crusher and coal mill use in coal mining plant
