Commonly used beneficiation method
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.
Non-ferrous metal ore beneficiation, such as copper, lead, zinc, sulfur, molybdenum and other miners to use flotation process; some ferrous metals, rare metals, and some non-metallic minerals, such as graphite ore, apatite, also with floating Choose the law.
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.
Common equipment in mineral processing equipment
Crusher : jaw crusher, hammer crusher , impact crusher, cone crusher , tooth roll crusher, double roll crusher, etc.
Ball mill : cement ball mill, cone ball mill, ceramic ball mill, energy-saving ball mill, high-energy ball mill, high-fine ball mill, lattice ball mill, overflow ball mill, etc.
Screening and grading equipment : high-frequency sieve, circular vibrating screen, linear vibrating screen, drum screen, finished sieve, classifier, etc.
Magnetic separator: wet magnetic separator, dry magnetic separator; strong magnetic field magnetic separator, medium magnetic field magnetic separator, weak magnetic field magnetic separator; river sand magnetic separator, wet permanent magnetic cylinder magnetic separator.
Flotation machine: SF flotation machine, XJK series flotation machine, stirring flotation machine, etc.
Mineral processing auxiliary equipment: vibrating feeder, trough feeder, mixing tank, bucket elevator, pendulum feeder, electromagnetic vibrating feeder, high efficiency concentrator, disc granulator, disc feeder , shaker, spiral chute, cement mill / raw material mill, MBS rod mill, etc.
Drying and calcining equipment: dryer, rotary kiln, etc.
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