Review of the Development of Dry Coal Preparation Theory and Equipment

Dry efficient separation of moist fine coal is an important part of the development of clean coal technology. This paper reviewed the research situation of the dry screening theory for moist fine coal and summarized the development status of dry screening equipment. The results show that the moist fine materials have complex physical properties and the theory of dry deep screening needs further improved. Flip-flow screen is a kind of screening equipment with wide application prospects, which can well solve the dry deep screening problem of the moist fine materials.