Introduction：Gravity separation is called gravity, is based on the mineral particles due to the density difference, by gravity, fluid power and other mechanical force in moving medium and different, so as to realize the separation of mineral particles

Gravity separation is called gravity, is based on the mineral particles due to the density difference, by gravity, fluid power and other mechanical force in moving medium and different, so as to realize the separation of mineral particles by density group. Particle size and shape affect the accuracy of density separation.
The purpose of gravity separation is mainly in accordance with the density of ore particles. Therefore, in the process of separation, we should try to create conditions to reduce the particle size and shape of the mineral particles on the separation results, so that the difference between the mineral particles in the separation process can play a leading role.
According to the different forms of media movement and the purpose of operation, gravity can be divided into the following several process methods: hydraulic classification, heavy medium separation, jigging ore dressing,  ore washing. The ore washing and classification are the operation according to the density, and the others belong to the operation according to the density.

Gravity separation is one of the most common methods of mineral processing, especially for the treatment of materials with high density, such as gold, iron, tungsten, tin, etc.. At the same time, gravity separation has also been used in the treatment of non-metallic minerals, such as asbestos, diamond, kaolin, etc.. For the non-ferrous metals (copper, lead, zinc, etc.) which are mainly treated by flotation process, the gravity separation method can be used for presorting, and the coarse gangue or the surrounding rock can be removed, so as to achieve the initial enrichment. Gravity separation method is also widely used in dehydration, classification, concentration, dust collection and other operations. These processes are essential for almost all of the concentrator.