Power plant coal crusher Nigeria
SBM Machinery Company is a professional manufacture of coal ash mill, which integrates design, manufacturing, marketing and after-sale service of coal ash production line and equipments. Featuring with energy-saving and environment-protection, the coal ash production plants of SBM have won a numbers of national patents, and the production technology of coal ash can meet the demands of different production.
Shanghai SBM Machinery Co. Lit. adopts advanced structures of the same products at home and aboard to make coal mill (coal gangue mill).
The coal mill which is produced by the Shanghai SBM Machinery Co. Ltd. Adopts the advanced structures of the same kind products at home and aboard. Compared with the ball mill, this grinding machine features with higher efficiency, lower power-consumption, smaller occupation and one-time investment.
Under the action of centrifugal force, the grinder rolls of the mill rolling compact on the bull ring tightly. For this reason, it does not influence the output and fineness of product, even the grinder roll and bull ring are worn down to certain thickness. Also, their replacement periods are long, so the shortcoming that the replacement period of quick-wear parts of coal gangue is short is removed. The separating airflow of the coal mill circuits through draught fan, shell, cyclone separating-device and fan. As a result, it makes less dust than high-speed centrifugal crusher, and the workshop is more cleaner, the environment is not unpolluted.
Coal mill application
The coal mill is mainly used to finely grind materials whose compression strength are less than 150Mpa, such as coal, coal gangue, slag, steel slag, limestone, coke, galena, spathic iron, sphalerite, and limonite. Even more, it is particularly appropriate for grinding brittle materials into thinner particles, which contain large content of water. The coal mill is widely used in chemical industry, electric-power, aluminum manufacturer, mineral products, building materials, beneficiation and other industries.
Coal Mining Machine Working Principle and Processes
The process of coal ash mining is complex, so its production technology consists of multiply assorted equipments: Firstly, excavating equipment; secondly, the blasting equipments, through which the coal ash is turned into coal fragments; thirdly, the rock hammer, falling sphere, primary crusher, gyratory crusher and other crushing equipments; finally, the rough materials are sent to porcelain tile mills by conveyor belt.
During the using process of the coal ash, the fineness of coal ash particles influences its strength. The finer the particle of coal ash is, the higher the particle’ strength is. So in the processes of treating and grinding of coal ash, it is the key to choose a mill of good function and high grinding fineness. The hardness of turning coal bulk into coal ash depends on its structure. Owing to distinction in structural features, mechanical strength and high brittleness of different coals, their grindability is diverse. In this way, the grindability index indicates the hardness of grinding coal into coal ash; when special equipment is endowed with the meaning, it represents the relative difficulty of the equipment to grind coal into coal ash. When the coal crusher operates, the two cross-connected rotors, derived by electrical machine, whirl at high-speed simultaneously. In coal gangue crusher, the materials are crushed by the upper rotor, whirling down to the rotor whip and spur, crushed again by the hammer of the lower rotor. The materials inside crash and crush together, and turn into slack particles whose discharging size are less than 3mm. This size completely meets the requirements of the internal burned bricks of bricks and tiles plants.
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