<%@LANGUAGE="VBSCRIPT" CODEPAGE="936"%> what's gravity separation or gravity?
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what's gravity separation or gravity?

Gravity separation is an industrial method of separating two components from a suspension or any other homogeneous mixture where separating the components with gravity is sufficiently practical. All of the gravitational methods are common in the sense that they all use gravity as the dominant force. Often other methods are applied to make the separation faster and more efficient, such as flocculation, coagulation and suction. The most notable advantages of the gravitational methods are their cost effectiveness and in some cases excellent reduction.
Gravity separation is the best proven and accepted technique of concentrating minerals and has been used as a primary form of mineral concentration for centuries. Due to its high efficiency and low cost, gravity separation is always the first consideration in any flowsheet development program and always features in any flowsheet where there is sufficient differences between the specific gravity of the valuable and gangue minerals.This technology can be applied to primary recovery, preconcentration, and final upgrading, as well as recycling and soil washing. Hazen's gravity concentration facilities are among the finest in the world.
There are a multitude of ways to achieve gravity separation, the most common being static separation, centrifugation, and jigging. For all methods, a proper water balance in the suspension is important to ensure efficient separation, and the fluid must be free of slimes, which increases the viscosity and hinders particle movement. For the most effective gravity separation, particle sizes should be relatively close, with very small or very large particles screened out.
Gravity separation is one of the main mineral beneficiation methods. It is a process based on a variety of minerals of different density or particle size, by a variety of fluid power and the role of mechanical force, resulting in a appropriate condition with loose hierarchy and separation, thus gain the product of different densities or different size. Clearly particle and shape of the mineral will affect the accuracy of sorting process which according to density. As the different density or particle size of mixed mineral particles , the velocity in the moving medium (water, heavy media density greater than water and air, etc.) is different , as well as the mobile degrees. Gravity selection process is to use this difference to achieve the separation of minerals.http://www.crushertrade.com

 

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