The graphite mining processes are mainly the gravity separation process, froth flotation process, electric separation process, and the combination process. And froth flotation process is the main graphite ore processing method. Generally, 90%-97% grade of graphite concentrate can be obtained after the graphite flotation process. For the different graphite ore properties, the graphite mining processes are also different.
To protect the graphite flakes from crushing, Xinhai uses a multi-stage grinding flow. Through re-grinding and re-processing, the quality of concentrates is qualified.
For graphite ores with heavy minerals, Xinhai gravity separation - flotation combined technology flow can be used. The heavy minerals are separated through gravity separation, and the tailings are dealt with flotation.
Coarse crushing equipment for crystalline and amorphous graphite is the common jaw crusher. The middling and fine crushing equipment is a common cone crusher or hammer crusher. The grinding equipment uses the wet ball mill and the grid ball mill. The flotation equipment for graphite is the common JJF flotation cell, XCF flotation cell, and XJB flotation cell. The dewatering equipment of graphite is the common hydrocyclone or belt filter.
In the multi-stage flotation process, the common foaming agents are No.2 oil, No.4 oil, ether alcohol, Rourke oil, etc; The collectors are kerosene, diesel, heavy oil, sulfonate, sulfate, phenols, carboxylic acids, etc.
A graphite mine in Vietnam
The graphite ore type is mainly graphite granulite, followed by graphite schist, and the beneficial mineral composition of graphite ore is mainly mesoscale crystalline graphite. After a comprehensive analysis of the properties of the raw ore, Xinhai added a sweeping and a beneficiation on the basis of the original graphite beneficiation process in order to ensure the quality of the concentrate. Selected, selected nine times.
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