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Mineral Processing Plant

Separating metal ore (such as: gold, iron, chrome,tungsten,etc) from rock ore is a multi-step process that involves crushing the rock ore,grinding and fractionation and concentrating and gathering the metal.
The rock ore is usually crushed by jaw crusher, cone crusher and some other stone crushing equipments for the primary crushing process. When it is crushed to an reasonable particle size (about 0-15mm), the elevator and feeder feed the crushed particles to milling machines.
At the mill, the ore should be ground to create sand-sized particles from the ore. The sand will be composed of expected metal particulates and other useful metals, dependent upon the geologic formation from which the rock ore was found.
Ground by the grinding machines, the particles must be fractionated. Usually the spiral classifier will be used to separate the different metals. Bases on that the deposition rate of different solid particles' specific gravity in the liquid is different, the screw classifier is able to achieve the grading function. Also the raw material is cleaned at the same time.
After the crushing , grinding, cleaning and fractionation processes, with the help of mechanical force, the subsequent magnetic separator will separate the magnetic substance from the mixture according to their different specific susceptibility.
Then the initial gross separation ore particles will be transported to the flotation machine. Some special chemicals will be added to the liquid according to different ores chemical characters. In this way, the expected metal ore is separated from other substances. But the moisture is quite high, so the expected metal ore need to be concentrated by the thickener. Finally we can use dryers dry the ore and get the high purity and dry expecting metal ore.