Gold in the ore is extremely low. In order to extract gold, we need to crush and grind the ore first and then use beneficiation method to pre-concentrate or separate the gold from the ore. Gold often exists in sand gold in a single form of native gold, with a density over 16 ton per cubic meter which is very different from gangue. As a result, gravity is the most important, effective and economical method in sand gold sorting.
Gravity Separation Line is composed of jaw crusher, feeder, high efficiency ball mill, classifier, chute and shaker; while floatation Line is composed of jaw crusher, feeder, high efficiency ball mill, classifier, mixing bucket and floatation machine. Our company can provide users with the most reasonable line equipped with the most energy-efficient equipment in accordance with their different technical requirements. The gravity separation of gold ore is separated according to the ratio difference between gold and other minerals. The more apparent the difference is, the easier to separate. Put the gold ore into cylinder screen and flow through high-pressure water. Gravel bigger than the screen hole go through chute and into tailings area by belt; While Gravel smaller than screen hole go through cyclone to jigger and flow into shaker to be primary, secondary and scavenging selection, and fine placers is produced. This method is often used for sand mining, sand gold, and also applicable for the crushed ores. And the crusher, energy-saving ball mill and classifier should be used for large ore.
The main equipment used in Gravity Separation includes various chute, jigger and shaker. In addition to the common gravity separation equipment, our country has developed such new items as belt chute, Ross chute, round jigger, gold centrifugal washing machine, which are based on the characteristics of gold production in our country, and which are in the digestion and absorption of advanced equipment in foreign countries. And the new equipment has achieved very good results. Processing plant in DSMAC Henan province they set soft chute cladding in grinding and classification circuit to reach a gold recovery by 70%. Soft chute cladding is also used in floatation and amalgamation tailings to improve the gold recovery.
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