Dry powder, granule raw materials which have special requirements to drying. For example: HP vesicant, lees, light calcium carbonate, active white earth, magnetic powder, graphite, medical slag and so on.

• 对有特殊要求的粉状，颗粒状物料的干燥。如：HP发泡剂、酒糟渣、轻质碳酸钙、活性白土、磁粉、石墨、药渣。