subject: Coal milling plant for high-efficiency use of coal [print this page] Coal milling plant for high-efficiency use of coal
Coal is primarily used as a solid fuel to produce electricity and heat through combustion. In order to use coal efficiently, we extract other matter from coal, thus we must first grind coal into powder in coal milling process.
Coal milling plant:
There are many kinds of coal mills, such as ball mill, vertical mill, raymond mill.
Ball Mills are generally used to grind material 1/4 inch and finer, down to the particle size of 20 to 75 microns. To achieve a reasonable efficiency with ball mills, they must be operated in a closed system, with oversize material continuously being recirculated back into the mill to be reduced. Various classifiers, such as screens, spiral classifiers, cyclones and air classifiers are used for classifying the discharge from ball mills. Ball mill is an efficient tool for grinding many materials into fine powder. The ball mill is used to grind many kinds of mine and other materials, or to select the mine. It is widely used in building material, chemical industry, etc. There are two ways of grinding: the dry process and the wet process. It can be divided into tabular type and flowing type according to different forms of discharging material.
Raymond Grinder (Raymond mill) is one of our most important milling equipment! It is mainly used to grind non-inflammable and non-explosive materials with Moh's hardness below 7 and moisture content below 6% such as barite, calcite, potash feldspar, talcum, marble, limestone, ceramic, glass, etc. Raymond grinder can be used in mining, chemical industry, construction materials, metallurgy and so on. The final products can be adjusted freely from 100 mesh to 425 mesh.
Vertical mill can be widely used in cement, electric power, metallurgy, chemical industry, non-metallic mining and other industries. Used to make the block, granular and powder materials grind into a powder material as required, is a ideal milling industry device which contain crushing, drying, grinding, grading conveyor in one machine.
The complete coal milling plant is consist of several types of coal mill and powder collector.
