Lignite quality drying equipment used in the lignite power plants, and dehydration before the burning of raw coal quality and handling is determined by its own characteristics, which is characterized mainly in the: 
 A lignite quality drying equipment working medium is superheated steam, it can make good use of the power plant waste heat, which allows resources to turning waste into wealth, has very important significance for the use of resources and environmental protection. 
 Burning lignite power plant boiler mainly suspension combustion, pulverized coal combustion boiler, which is consistent with the drying process of the lignite quality raw materials. 
 (3) the dry strength. Airflow, high-speed drying equipment in the lignite quality coal particles well dispersed in the gas phase, all the surface area of ??the particles can be as an effective dry area. Therefore, drying the effective area is greatly increased. Dispersion due to the dry and stir role gasification surface constantly updated, so powerful, dry heat and mass transfer process. 5 
 Short drying time. The gas-solid contact time is very short, particle residence time in the whole system is about 2s. 
 5 simple equipment. Lignite quality drying equipment is simple, small footprint, low investment. Reduced by 60% compared with air drying equipment, 80 percent of the investment province. 

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