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New Progress of Coal Preparation Technology in China | SpringerLinkOct 22, 2016 . This paper introduces three development potentials of the new coal preparation technology: “Steam coal fines dry removal preparation process”, “coal cleaning . The engineering of these new coal preparation processes are now wide spread and applied for the steam coal preparation plants in China.coal preparation plants n china,STATUS OF COAL PREPARATION TECHNOLOGY IN CHINATECHNOLOGY IN VOGUE. ▫. Raw coal crushed to 50/60 mm. ▫. Coarse coal washing. ❖ Mainly by DMC (Dia:1000 mm or more). ❖ Drums or Baths in some plants. ❖ Jigs at few plants. ▫. Fine coal washing. ❖ Spiral + Jameson or Microcel technology. ❖ Limited use of froth flotation for metallurgical coal. ▫. Dewatering.Optimization Strategy of Internal Value Chain of Coal Preparation .Optimization Strategy of Internal Value Chain of Coal Preparation Plant Based on. Cost Control. Jingwen An. China University of Mining and Technology (Beijing). Management School of CUMTB. Beijing, China, 100083 ajw1200263. Xiuling Zhang. China University of Mining and Technology (Beijing). Management.