The thermal power plant requires a pulverizer coal is ground into a fine coal particles of irregular, average particle in the 0.05-0.01mm, wherein the particles in the 20-50um (microns) or less majority. This is because the pulverized coal particles is very small, large surface, can adsorb a large amount of air, and with the nature of the general solid No – flow ability.
Pulverized coal the smaller the particle size, moisture content of the smaller, the better liquidity, pulverized coal particles too small or too dry, it will produce coal artesian phenomenon, so the operating characteristics of the coal feeder instability to the adjusting operation of the boiler operation is difficult. In the milling mechanism powder system, pulverized coal is to transport gas, a spark of the mixture of gas and coal will be the source of fire to expand and generate greater pressure, resulting in a pulverized coal explosion. So the new mill needs to consider the work of coal grinding mill explosion-proof. Henan Hongxing vibrating screens will be your best choice. wet type rod mill: http://www.hxjq-crusher.com/26.html
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In the milling machine on Coal grinding, pulverized coal, into contact with oxygen and oxidation must occur pulverized auto ignition. Example: Henan Hongxing prolific MTW the top of the European version of the mill provided a special point of explosion-proof, for the release of the internal pressure of the mill.
Thermal power plants fueled with coal is often referred to as thermal coal, the classification is based on the drying of coal ash-free volatile classification. Steam coal category, mainly brown coal, long flame coal, non-caking coal, the lean coal; gas coal, as well as a small amount of anthracite. From a commercial coal, main wash mixed coal, washed coal, pulverized coal, at the end such as coal.
Thermal power plants using coal into the furnace before grinding Mill. With a very large increase in the case of vertical milling machine technology has matured, the strength of international and domestic enterprises natural duty-bound to select the preferred device for vertical milling machine as pulverized coal.
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