Gravity beneficiation is a beneficiation method that separates minerals according to their density. The size, shape and media properties of the ore particles all have an impact on the separation efficiency. In addition to the reselection equipment, the media must be used for reselection. Medium such as water, air and heavy liquid or resuspended liquid. This is also the difference between gravity beneficiation and other beneficiation processes.
1. Water eluting mud: Disperse the agglomerated or fine mud bonded with quartz particles under the action of water flow, and remove the mud. It is suitable for glass, foundry and other industrial sand to remove clay fine mud.
2. Hydraulic classification: According to the different sedimentation speed of different particle size minerals in the water ascending stream, the wide-grade particle group is divided into several particle grade products, and different particle grades are divided to meet user requirements. Suitable for processing foundry sand, glass sand, cement standard sand, etc.
3. Shaking bed beneficiation: iron and high-density ore particles settle faster in the water, and low-density quartz particles are separated from heavy minerals under the combined action of horizontal and vertical water flow. Suitable for removing iron and other heavy minerals from glass sand.
4.It is a traditional method for processing tungsten, tin, and gold ore, especially placer gold and placer tin ore. It is also widely used in processing placer ore containing rare metals (tantalum, niobium, titanium, zirconium, etc.). It is also used to sort weakly magnetic iron ore, manganese ore and chromium ore. In recent years, it has also been developed in the non-metal processing industry, mainly used to process asbestos, diamond, kaolin, apatite, pyrite and other ores.
The advantages of the gravity separation method are reflected in the simple structure of the equipment and low beneficiation cost, so as long as the conditions are suitable, the gravity beneficiation process can be used.
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