The article describes the procedure for preliminary dry cleaning proposed by Osborn Company (Republic of South Africa); a member of Astec Industries, Inc. Osborn is a manufacturer of the full range of crushing, screening and conveyor machinery and equipment for mining industry. Crushing and screening equipment by Osborn in coal-producing integrated works performs all the operations in coal preparation and processing according to the customer’ requirements. A typical flowsheet of dry coal cleaning developed by Osborn is presented to the reader.

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