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

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

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如：H P发泡剂、酒糟渣、轻质碳酸钙、活性白土、磁粉、石墨、药渣。

For example: HP vesicant, lees, light calcium carbonate, active white earth, magnetic powder, graphite, medical slag and so on.

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