Lignite drying and quality and the country is also a need to overcome the problem of coal drying expert Dongding dry in many years engaged in the slime, clean coal and coal dewatering drying accumulated a wealth of experience and theory and practice. Engineering and technical personnel of the Division I for the characteristics and use of lignite point to address a range of safety, environmental issues, the successful development of the large drum anaerobic lignite dryer device, the system is Division I development slime dryer device a major breakthrough in the field of domestic vertical drying greatly expand the use of lignite ways. Division I a brown drum anaerobic lignite dryer system in Inner Mongolia, Liaoning, Yunnan rapid promotion used to solve the practical problems of customers, won customers, friends come to our company visit exchanges welcome owners. Division I to the lignite dryer system installed for customers in Dandong, the system configuration Division I newly developed the lignite drying dedicated large burner stove, completely solve the problem of lignite drying heat source selection troubled. Dongding the drum-anaerobic lignite drying machine and quality and technical characteristics: (1) dry lignite do not get damp absorbent: dried lignite larger physical and chemical changes occurred, that the pores collapse, the crosslinking reaction and tar migration of pores form a seal results montanic becomes more and more hydrophobic, and also can be observed to the hardening of the lignite, which also led to the formation of the rigid structure of the lignite. As a result, lignite soft coal is converted to hard coal is hydrophobic and hydrophilic conversion to stamp out lignite dry damp absorbent, which can achieve the long-distance transport of lignite. 
 (2) dry lignite volatiles can be effectively protected: the humidity content of the carrier wet medium, without volatile release conditions; 
 (3) a high degree of automation, simple manipulation: a high degree of system integration, and with automatic intelligent monitoring system, the hot stove furnace, the inlet of the dryer, the dryer outlet and induced draft fan entrance of the main parts of the temperature, the pressure, flame, smoke real-time monitoring of oxygen and other parameters, to achieve automatic control and regulation system running, the parameter continuous automatic acquisition, fault alarm and safety interlock protection. Vibrating feeder, dryer, cited devices such as fans, blowers, spiral feeder with frequency control, according to the needs of production and operating parameters, using the appropriate speed, not only can easily control the final moisture indicators but also save a lot of power. 
 (4) Energy efficient: dry heat loss (drying) machine, high thermal efficiency; heat source coal burnout rate of pulverized coal up to 99% of the hot stove, the effect of heat transfer efficiency than traditional coal-fired hot air furnace section Coal 30 --- 50%; lignite powder produced by the drying process can be used as a fuel, which greatly reduces the cost of fuel. 
 (5) Safety: seamless wind phenomenon unique sealing structure to discharge a thorough solution to sealing and difficult to achieve full oxidation of negative-pressure operation, and eliminate the possibility of lignite combustion and explosion, safe, reliable operation.