The deposit consisted of auriferous quartz veins. Xinhai offered tailored solutions to the project, and crude ingots were produced as final products after smelting.
01 Crushing and screening: raw materials were transported by trucks, and two-stage closed-circuit crushing was adopted.
02 Grinding and classification: After the surge fine ore bin, crushed products entered the two-stage closed-circuit grinding and classification system.
03 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.
04 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.
Based on comprehensive planning, Xinhai worked to shorten construction duration, provide optimal service, optimize plant layout, and ensure environmental protection and workplace safety.
A gravity separation equipment that uses different sedimentation speeds of minerals in vertical alternating currents to realize the separation of light and heavy minerals.
A shaker device that uses the asymmetric reciprocating motion of the bed surface to realize the separation of light and heavy minerals.
Desorption electrolysis system as obtains gold mud from carbon by desorption and electrowinning
Xinhaili Hydrocyclone is a kind of involute feeding cyclone with world advanced level.
Xinhai High Frequency Dewatering Screen is a uniquely designed tailings dewatering screen with large processing capacity and sufficient dewatering.
A vacuum filter with vertical discs consisted of fanning plates