The processes include permanent heap leaching, thin layer leaching, agglomeration & heap leaching, and acid curing and heap leaching, The leaching cycle ranges from 3~6 months.
The process requires ore grinding and generally has a high recovery. Leaching cycle lasts 2~3 hours, followed by solid-liquid separation. CCD washing is used to improve the copper recovery.
Roughing flotation to obtain coarse concentrate for grinding,Sweeping by flotationto obtain concentrate and tailings pulp.Raw copper ore transported to warehouse by the mine car for storage,Raw Ore sent to the jaw crusher for primary crushing through the electric vibration feeder,Crushed product is transported to the cone crusher for secondary crushing by the belt conveyor, andSecondary crushed product is sent to the cone crusher for secondary crushing.Ore after crushing and Screening sent into hopper for the ball mill grinding;Grinding product is sent to the hydrocyclone for classification.Stirring is carried out in the tank, and after stirring, the ore pulp enters the flotation machine for flotation.After the ore slurry passes through a copper rougher, the tailings obtained are scavenged, and the scavenging concentrate is returned to the copper rougher for repeated concentration.
Tailing Treatment Process
Scavenging tailings slurry is pumped to the thickening cyclone for thickening, and the concentrated overflow is conveyed Concentrate again in the high-efficiency thickener, the overflow water of the thickener is returned for reuse, the underflow is sent to the high-efficiency multi-frequency dewatering screen with the underflow of the thickening cyclone for filtration, the filtrate water is returned to the tailings slurry, and the filter cake is transported by a belt conveyor to the tailings pond. The concentrate obtained from copper roughing is put into the ball mill for regrinding.
TOMINE'S new smelting slag treatment process hot smelting slag comprehensive recovery technology in a harmless way
TOMINE (TSL technology)Oxygen-enriched top-blowing submerged lance bath smelting includes ISA process and Ausmelt process
TOMINE Flash smelting technology is featured with quick reaction speed, strong smelting intensity, high production efficiency, and high level of automation
TOMINE Oxygen-enriched side-blowing bath smelting technology adopts a fixed horizontal furnace with concentrate directly into furnace
TOMINE BCC furnace is also of horizontal type with oxygen-enriched air blowing into furnace via lances positioned at the furnace