Lignite in the context of increasingly tense domestic coal resources is a new development and utilization pathway, lignite drying and quality and in the country is also a need to overcome the problem, the coal drying Experts Dongding dry in many years engaged in the slime, clean coal and other coal dewatering drying has 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 a dedicated lignite dryer device, the system is a vertical drying in the country after the Division I both developed slime dryer device the field is a major breakthrough, greatly expanding the use of lignite ways. Lignite dryer to mention the quality of Dongding bit: Zhengzhou the Dongding drying of lignite drying process advantages: 1, the drying process is no open flame to enter, there is no possibility of fire or explosion; 2, high thermal efficiency of the combustion furnace, ignition convenient, fast heating, the use of mechanized slagging; 3, stable operation of equipment, easy operation, low maintenance; 4, low operating costs, high collection efficiency, energy saving and environmental protection 5, with dustfall room into the dryer dust less reduce product increased gray; 6, with short circuit chimney, emergency short-circuit high-temperature flue gas gate opens to discharge excess heat. The lignite drying to mention quality manufacturers look Zhengzhou Dongding!