The influences of blending process conditions on the properties of dry mixed powder,the influences of various additives on the blending process,the influences of the quality of dry mixed powder on the extrusion operation and the quality of products were discussed.

：The paper introduce a kind of new building materialscement dry mix and its sortsadvantage and developments at home and abroad．And the article probe on the equipmenttechonolagical process and conditions of productionand look forward the dry mix at home

Development status and tendency of coal gasification technology with dry coal feed in China;