Gravity beneficiation is the main method of placer gold extraction. Due to the free state of gold in placer gold deposits, and the specific gravity difference between gold and sand is very obvious, it is the most ideal and efficient method to extract gold from placer gold ore by gravity dressing method.
Mineral jig is used as the coarse concentration equipment for placer gold ore, and the shaking table is used as the fine concentration equipment for the rough concentrate of mineral jig. The mineral jig is used in conjunction with the shaking table to complete the concentration and extraction of gold ore.
In the process of placer gold dressing, the mineral jig is generally used as a coarse concentration or tailings scavenging equipment, while the shaking table can only be used as a concentration equipment.
The general process of placer gold dressing is screening -> jigging -> shaking table -> mixing mercury. For low-grade ore deposits in some locations, sluice box may be used as a coarse concentration device, a mineral jig as a tailings scavenging device, and a mercury mixing cylinder or a shaking table as a concentration device.
In some other locations, a sluice box or a centrifuge may be used as a coarse concentration device, a mineral jig as a tailings scavenging device, and a shaking table or a mercury mixing cylinder as a concentration device.
In fact, the processing technology and equipment of gold ore dressing should be determined according to the specific ore properties and characteristics. Not all gold ores can obtain the best beneficiation effect by using the same beneficiation technology and equipments. Therefore, it is recommended that you choose a professional manufacturer and let professional engineers equip you with ore dressing process and equipment.
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