Click image to view original image
1Application range of coal dryer
Coal slime coal dryer is new drying equipment developed on the base on coal dryer. It is widely used:
1coal industry: coal slime, raw coal, flotation coal, mixed coal
2construction industry: blast furnace sludge, clay, bentonite, limestone, sand, quartz
3mining industry: metal concentrate, sludge, tailings
4chemical industry: non-heat-sensitive materials
2Features of coal dryer
1Anti-overload ability, large handling capacity, less energy consumption, low cost
2Downstream method, high evaporation intension, high heat efficiency
3Adjustable operation parameter according to property of materials, full heat exchange
4New feeding and discharging device to avoid blocking, uncontinuous, uneven and revert phenomenon, low load of dust catching system.
5New internal structure, strengthened cleaning and heat-transmission effection for the dried materials, no phenomenon of attachment on the inner wall of the cylinder, wide flexibility for moisture and stickiness
3Process flow of coal dryer
As coal slime is sticky, coal dryer is divided into several section for higher efficiency.
A. Transmission section. Wet coal slime enters this section, then gets full contact with high temperature air, moisture inside gets vapourized. With lifting boards elevate and scatter materials repeatedly, wet coal slime is conveyed to next section.
B. Cleaning section. When materials fall down, they are easy to stick on the inner wall of the cylinder. During this process, cleaning device breaks the clumps. This spreads the surface area of heat exchange and improves heat efficiency.
C. Lifting boards section. Wet coal slime is loose and of low moisture content that meet the requirement.
D. Discharging section. No lifting boards in this area. Materials roll to the outlet. The whole drying process is completed.
