The deposit consisted of auriferous quartz veins. Xinhai offered tailored solutions to the project, and crude ingots were produced as final products after smelting.
Crushing and screening: raw materials were transported by trucks, and two-stage closed-circuit crushing was adopted.
Grinding and classification: After the surge fine ore bin, crushed products entered the two-stage closed-circuit grinding and classification system.
Gravity concentration: gravity concentration system was added between the first-stage ball mill grinding and closed-circuit classification. Jigs and shaking tables were used for roughing and concentration respectively.Cyanide leaching: the two-stage classification cyclone overflow entered the cyanide leaching system which adopted eight-stage leaching and absorption and reverse carbon extraction.Desorption electrolysis and smelting: the saturated gold-bearing carbon was fed to the high-temperature high-voltage desorption electrolysis system for gold extraction. The gold slime, which had a high grade Au, was fed to the high-frequency furnace to produce crude gold ingots.
Tailings dry stacking: tailings were dehydrated by filter press. The dehydrated tailings (20-25% water) were transported to the tailings pond, while the filtrate was recycled to achieve no discharge of production sewage.
Leaching agitation tank is a leaching equipment for cyanide leaching by referring to the USA technical design.
Desorption electrolysis system as gold extraction equipment obtains gold mud from carbon by desorption and electrowinning
A jigging machine realizes the separation of light and heavy mineral by the different sedimentation speed in vertical alternating water flow
Concentrating table (shaking table) is a gravity separation equipment of separation different weight mineral by asymmetric reciprocating motion
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