Lignite is a kind of low-grade coal, which is formed by peat diagenetic formation of humic coal, it’s the lowest degree of coalification, always present brown, dark brown, dim or asphalt luster color, no cohesive. Its physical and chemical properties are between peat and bituminous coal. High water content, high volatile, low density, containing humic acid, oxygen content up to 15 ~ 30%, easy to fragmentation, spontaneous combustion in the air. According to China's coal classification standards, they are divided into two categories: light transmittance PM 30 ~ 50% of the old lignite and PM less than or equal to 30% of the young lignite. Chinese and Indonesian lignite are mostly old lignite.
Product Application
Zhengzhou Dingli New Energy Technology Co., Ltd is the most professional, most authoritative enterprise in china,which is engaged in coal drying equipment research and development,which is the only Chinese coal slime drying industry set design, production, sales in the integration of science and technology enterprises. After nearly 20 years of rapid development,Dingli has gradually become the first brand of drying equipment industry in China .Company based on the lignite, washed coal such high moisture content coal, with the carefully technical research and practice, developed the coal rotary drying drum system,After 20 years drying experience and constantly improvement in the equipment design, with its advanced technology, high efficiency, low energy consumption, stable operation, convenient operation and maintenance, security, environmental protection,the product are well received by users, more than 100 sets of coal drying equipment running in China and all over the world. This type of equipment can be used for drying all kinds of coal, lignite, carbocoal, including anthracite, lean coal and poor lean coal, lean coal, coking coal, fat coal, air fertilizer coal, gas coal, coal and weakly caking coal, not sticky coal, long flame coal, lignite, coal washing, screening, raw coal, bituminous coal,the tail coal, middling coal etc. Equipment can be made according to the customers'