... rotary dryer's scope of using:1: chemical, mining,metallurgical and other industries,such as ore, slag, coal, metal powder, ... fertilizer ammonium sulfate.3: For the drying of the powder with special requirements and granular materials. Such as: various ... crystals, light calcium carbonate, active floridin, magnetic powder, graphite, inorganic slurry, argil, line slurry, mineral slurry, ...