Lignite dryer is a machine and equipment mainly used for drying lignite. The rotary lignite dryer uses a low-temperature four-stage drying process to evaporate the lignite moisture to less than 13% while ensuring that the quality of the lignite being dried remains unchanged. The primary drying area removes most of the water at a high temperature of 400°C under high humidity conditions to ensure that the chemical composition of the lignite does not change and is not easy to burn; the room temperature of the secondary drying area is 300°C, and high-yield water removal is achieved through medium-temperature strong air induction to ensure Lignite does not coke; the indoor temperature of the third-level drying area is 120°C-210°C. The crushing device in the drum is used to repeatedly impact and break up the materials and dry them downstream; the fourth-level drying area is a high exhaust area with a room temperature of 60°C -80℃, moisture is removed by low-temperature hot air flow with negative pressure from the induced draft system.
Lignite Coal Dryer usage range
1. Drying of coal slime, raw coal, flotation clean coal, mixed clean coal and other materials in the coal industry;
2. Drying of blast furnace slag, clay, bentonite, limestone, sand, quartz stone and other materials in the construction industry;
3. Drying of various metal concentrates, waste residues, tailings and other materials in the mineral processing industry;
4. Drying of non-heat-sensitive materials in the chemical industry.
