subject: Brief Introduction Of Gravity Separation Methods [print this page] 1, the definition and application of gravity concentration range
Gravity separation is often said that the re-election, it is the relative density, particle size, shape differences between be separation of mineral particles and their media (water, air or other relatively high density liquid) movement in the rate and direction different, so that the mutual separation of mineral processing methods.
Gravity separation is one of the most popular of several beneficiations, the main deal with the density difference between the larger materials. It is a coal sorting the most important method, but also choose the traditional methods of the other gold, tin, tungsten and other metal ore, titanium, zirconium, hafnium, vanadium, niobium, tantalum, molybdenum and other rare metal ore is also very common. Gravity separation is also used for sorting iron ore and manganese ore, is also used to deal with some non-metallic ore, such as asbestos, diamond, kaolin. Flotation processing non-ferrous metals such as copper, lead, zinc ore, gravity separation method of pre-sorting to remove coarse gangue or wall rock to reach the initial enrichment. In addition, the gravity separation method can be applied to dehydration, grading, concentrate, dust, and other operations. These processes link is an integral part of all concentrator and coal preparation plant.
2, gravity separation of the purpose and process of classification
Gravity separation of the main purpose of dressing tablets in accordance with the density. Therefore, in the process of sorting, should be focused on the wisdom to create favorable conditions to reduce the size and shape of the mineral particles on the sorting results, so that the density difference between the mineral particles play a leading role in the sorting process.
There are several craft classification according to different media forms of exercise and operating purposes, gravity separation: Water grading, heavy media beneficiation, jig beneficiation, a double dressing (out of the disk), and the chute dressing and washing. The use of different media is divided into a wet re-election and wind (dry) re-election.
3, gravity concentration equipment
In order to enhance the effect of the separation of fine-grained material, gravity separation, centrifugal force field of the spiral chute, centrifuges, cyclone and other gravity separation equipment.
Gravity concentrator new technology is the formation of the joint operations of the fine sieve and magnetic agglomeration process, a fine sieve to control particle size, based on magnetic agglomeration work mainly with the process is reliable, simple structure, convenient and energy efficient features. In particular, is most appropriate for a single magnetic ore was heterogeneity disseminated.
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