Ash of rock char rock in western countries is 5% ~ 8%. America provisions are not allowed to use rock power plant sulfur powder more than 1%. Therefore, both coking rock and steam coal, must be broken washing or sieving to roll.
Germany, Britain, France, Japan and other countries of rock almost all
mining equipment rental in india equipment was selected, rock American not selected is the power rock ash powder, but also for screening, removing large gangue crusher by selective. The maximum treatment capacity is the jig and heavy medium separator are already amounted to 1000 tons per hour, maximum flotation machine for the 50 tons per hour.
German sea Sri Robert mine new rock preparation plant, the combined washing system, namely each procedure only one set of large equipment, no spare, so that the whole process is greatly simplified. The main equipment only one lump rock jig and a special rock jig and a 400 tons / centrifugal dewatering machine.
Jig rock preparation is still occupied the main status. Germany in the introduction of Japan Gossen type sieve air jig rock on the basis of the Batak jig, sorting index of rock and heavy medium rock preparation be roughly the same.
The heavy medium rock preparation process is simple, small footprint, the clean rock recovery rate is high, the United States, method, wave, Macao, Czech Republic. In heavy medium separation. With large diameter and heavy medium cyclone as cleaning equipment, to 44 mm below the rock mining.
Because of the requirements of environmental protection, the slime water treatment very seriously. The French rock preparation plant has been basically achieved closed-circuit circulation of wash water. The general approach is to add coagulant concentration, and then press filter.
