The gold ore gravity separation process is a process that uses the density and particle size differences of minerals to create suitable loose stratification and separation conditions through the combined action of medium fluids and various mechanical forces, thereby obtaining products of different densities or different particle sizes.
Jig gold selection, shaker gold selection, chute gold selection
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Click to add WeChatJig gold selection is to mix mineral particles with different specific gravity and layer them according to specific gravity in the vertically moving variable speed medium flow. Minerals with small specific gravity are located in the upper layer. The minerals with a specific gravity are located in the lower layer, and the stratified materials are discharged separately by the action of machinery and water flow.
Jig gold beneficiation is suitable for sorting coarse mineral particles (mineral raw materials of any size except fine materials). The particle size range of metal minerals is 0.074-50mm. For placer gold beneficiation, the specific gravity can be used Under the premise that the difference is ≥1.25 and the ore monomer is dissociated, the lower limit particle size can reach 0.04mm.
Shaking table gold separation is carried out in a horizontal medium flow. It is mostly suitable for processing and sorting minerals with finer particle sizes. It can be selected according to the characteristics of the ore. Different particle sizes can be divided into three types: coarse sand bed, fine sand bed and mineral mud bed. Among them, the coarse sand bed is suitable for sorting mineral particles with a particle size of 0.5-2.0mm, the fine sand bed is suitable for processing mineral particles with a particle size range of 0.074-0.5mm, and the slime bed is suitable for processing materials with a particle size of 0.037-0.074 mm of mineral particles.
The ore particle size range of shaking table gold beneficiation is generally between 0.019-3mm. The gold beneficiation is stable and reliable, the distribution of ore belts is clearly visible, the rich ore is higher than other beneficiation methods, it is easy to manage, and it can be used in one go Select the required ore.
Chute gold selection is a process where the material relies on the combined forces of water flow, mineral gravity, friction between the mineral particles and the bottom of the tank, etc., to cause the mineral particles to settle according to specific gravity. In different areas in the tank, the mineral particles with small specific gravity are taken away by the water flow, leaving the mineral particles with heavy specific gravity, which completes the separation.
Chute gold selection is suitable for processing micro-fine materials with low mud content. The material size range is 0.03-0.6mm. It has a simple structure, large processing capacity and low overall cost.