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Reselection method
The re-election method is to classify minerals based on the difference in relative density of minerals (commonly referred to as specific gravity). Mineral particles of different densities are subjected to hydrodynamic forces and various mechanical forces in the moving medium (water, air and heavy liquid), resulting in suitable loose delamination and separation conditions, so that different density of ore particles can be separated.
2. Flotation method
The flotation method is based on the difference in physical and chemical properties of the mineral surface, and is treated by a flotation agent to selectively attach the useful mineral to the bubble to achieve the purpose of sorting.
The ore dressing of non-ferrous metal ore, such as copper, lead, zinc, sulfur, molybdenum and other mines, is mainly treated by flotation; some ferrous metals, rare metals and some non-metallic ores, such as graphite ore, apatite, etc. are also used for flotation Law selection.
3. Magnetic separation method
The magnetic separation method is based on the difference in mineral magnetic properties, and different minerals are subjected to different forces in the magnetic field of the magnetic separator to obtain sorting. It is mainly used for sorting ferrous metal ore (iron, manganese, chromium); it is also used for the selection of colored and rare metal ores.
4.Electrical selection method
Electroporation is based on the difference in mineral conductivity. When the mineral passes through the high-voltage electric field of the electric separator, the electrostatic force acting on the mineral is different due to the difference in the conductivity of the mineral, so that the mineral can be separated. Electroporation is used for the selection of rare metals, non-ferrous metals and non-metallic ores. Currently used mainly for the separation and selection of mixed coarse concentrates; such as the separation of white tungsten and cassiterite; the selection of zircon, the selection of antimony ore.
Mineral processing equipment includes: ball mill, magnetic separator, dry magnetic separator, wet magnetic separator, magnetite ore dressing equipment, flotation machine, mining flotation machine, classifier, spiral classifier, sorghum spiral classifier , dryer, rotary kiln, shaker, hoist, high frequency sieve, finished sieve, high efficiency concentrator, spiral chute, disc granulator, trough feeder, energy saving ball mill.
Buying ore dressing equipment must look at what mine to choose, and then see what mineral processing equipment to buy. 
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Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn