What are the equipment needed for gold mining

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 Gravity separation is an older method of beneficiation, which uses different settling speeds of materials in the medium for separation. For placer gold mines, due to mechanical and weathering effects, the gold-bearing parent rock is gradually broken into granular objects such as cuttings. Under the action of external force, minerals with larger specific gravity are deposited on river beds, mountain slopes and other places to form Enriched. For the sorting of placer gold ore, re-election is a more direct and economical method, and the beneficiation process of re-election includes cracking, screening, dehydration, separation and other stages. Reselection methods include jig selection, shaker selection, chute selection, centrifugal selection and other processes. These gravity separation methods are mostly used in placer gold ore with monomer dissociation, and are rarely used alone. They are generally used in combination with other processes to recover gold ore more effectively. The following briefly introduces the equipment used for reselection.

1. Jig



The jig uses water as the beneficiation medium and uses the difference in the specific gravity of the selected minerals and gangues for separation. The Xinhai mineral processing jig is improved on the basis of the traditional jig, so that the jigging pulse curve is in a sawtooth waveform, and the rising water flow is faster than the falling water flow, so that the heavy mineral particles in the mineral can be fully settled and the recovery rate is improved.

2. Spiral chute



The main equipment of the chute for gold selection is the spiral chute, which is sorted with the help of inclined water flow. Its working characteristic is that the end of the tank is concentrated, medium ore, and tailings, without flushing water during the sorting process. The position of the regulating valve block is used to change the cutting width of various products. The change of the cross-sectional curvature of the spiral chute is particularly suitable for the selection of fine-grained materials. The beneficiation chute can be lined with FRP, wear-resistant rubber, and polyurethane rubber for users to choose independently.

3. Shaker



The shaker is a device for sorting in a horizontal medium flow, which uses the asymmetric reciprocating motion of the bed surface to realize the sorting of light and heavy minerals. The ore particles are fed into the ore tank, and at the same time, horizontal flushing water is supplied from the water supply tank. Under the action of gravity, impulse, friction, etc., the ore particles are layered according to specific gravity and particle size, and make asymmetrical reciprocating movement along the bed surface. Discharge from different areas to get different products.

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