Equipment Specifications (mm): Φ3000x22000 processing capacity (t / h) :40-50 Motor Power (kw): 90 Feed Water (%): 40 ± 5 coal requirement (kcal / h): ≥ 5500 discharge water ( %): ≤ 10 uses a coal industry, coal, coal, flotation coal, mixed coal and other dry materials; 2, the construction industry, blast furnace slag, clay, bentonite, limestone, sand, quartz and other materials drying; 3, mineral industry, all kinds of metal ore, slag, tailings and other materials dry; 4, the chemical industry, non-drying heat sensitive materials. Work conventional drying method generally uses centrifugal mechanical dewatering, expensive equipment, low productivity, dehydration amplitude is small, usually only about 10% in a precipitation. --- 20% of the remaining moisture content of 15. Lignite rotary dryer, has taken the first crushing lignite drying heat dispersion and then a new technology that allows the material to achieve a continuous drying process of industrialization and automation. The lignite drying process after the wet mud moisture lignite can be from 25% to 30% to 13% or less, used as fuel coal, improve coal washing process, with good economic, social and environmental benefits.