Mine ore mill for ore milling process
Ore Grinding Plant
Ore grinding
Ore Grinding is a powdering or pulverizing process using the rock mechanical forces of impaction, compression, shearing and attrition. Main machines in ore grinding process are ore mill equipment. The most common ore grinding mills in mining are ball mill, Raymond mill and high pressure suspension mill. The selection of is according to customers' requirements and the nature of the minerals.
The ore grinding machine grinds the materials into fine powder by means of knocking and abrasion between the medium (steel balls, steel bars, gravel) and ore. The purpose is to dissemble the ore and achieve the proper size for the next ore processing. Ore grinding can be divided into grinding with media and without (self-grinding). It can also be divided into dry grinding and wet grinding. If the minerals with the unsuitable size return to the mill for re-grinding, it is called closed-circuit grinding. If the minerals is not returned to the mill or transferred to other mill for re-grinding, it is called open-circuit grinding.
Ore milling process
Big ore minerals are fed to the jaw crusher evenly and gradually by vibrating feeder through a hopper for primary crushing. After coarse crushing, the material will transferred to other crushers by belt conveyor for secondary crushing; the crushed materials will then transferred to vibrating screen for separating. Then, the crushed ores will be transferred into the ball mill evenly for ore grinding.
After grinding in ball mill, the ore fine material into the next process: classification. Because of the weight of solid particles is different, the speed of precipitate in liquid is different, according to this principle, spiral classifier can washed and classified the mixture ore. After classifying, ore particles are sent to flotation machines, depending on the mineral characteristics with different chemicals, making the needed ores and other materials to be separated.
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