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Rotary kiln dryer, - wide application range, - steady performance, reliable operation, - 5 years in export, -history of 30 years - details see: https://www.machineto.com/1-8m-20m-rotary-kiln-dryer-for-coal-gypsum-sand-slag-slurry-etc-10295036

1.8m*20m rotary kiln dryer for coal, gypsum, sand, slag, slurry, etc

1Application range ofrotary kiln dryer

Rotary kiln dryer is widely used in:

- Coal industry: coal slime, raw coal, flotation coal, mixed coal

- Construction industry: blast furnace sludge, clay, bentonite, limestone, sand, quartz

- Mining industry: metal concentrate, sludge, tailings

- Chemical industry: non-heat-sensitive materials

2Features ofrotary kiln dryer

• Anti-overload ability, large handling capacity, less energy consumption, low cost
• Parallel flow method, high evaporation intension, high heat efficiency
• Adjustable operation parameter according to property of materials, full heat exchange
• New feeding and discharging device to avoid blocking, uncontinuous, uneven and revert phenomenon, low load of dust catching system.
• New 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 ofrotary kiln dryer

As coal slime is sticky, rotary kiln dryer is divided into several section for higher efficiency.

• 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.
• 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.
• Lifting boards section. Wet coal slime is loose and of low moisture content that meets the requirement.
• Discharging section. No lifting boards in this area. Materials roll to the outlet. The whole drying process is completed.