Introduction to gold mining technology methods and processes
At present, 98 kinds of gold minerals and gold-bearing minerals have been found, only 47 kinds are common, and only 10 kinds of minerals are directly used by industry. There are nearly 38 kinds of gold-bearing minerals in China, and the gold content of gold mines is generally less.
At present, the mainstream gold ore dressing technology is generally crushed by a crusher, and then crushed by a ball mill. Then, through re-election and flotation processes, the concentrate and tailings are extracted, then chemically, and finally smelted. Its products eventually become finished gold.
Gold ore beneficiation method - flotation:
80% of the gold selection plants in the country use the flotation method to select gold, and the produced concentrates are sent to the non-ferrous smelters for treatment. Due to the increasing development of gold extraction by cyanidation and the reduction of concentrate transportation losses by enterprises in order to improve economic efficiency, the local flotation process has been greatly developed, and it plays a very important role in the production of gold.
Gold ore beneficiation method - re-election:
Gravity beneficiation method is a method of selecting ore according to mineral density. The main equipment used is chute, shaker, jig and short cone cyclone. Gold ore beneficiation method-chemical selection: The current selection methods mainly include amalgamation gold extraction process and cyanidation gold extraction process. The amalgamation process is an ancient gold extraction process. It is simple and economical. It is suitable for the recovery of coarse-grained monomer gold, but it has great pollution to the environment and is gradually re-elected, flotation and cyanidation. Replaced by the Fatikin process.
The cyanidation gold extraction process includes: cyanide leaching, washing and leaching of the leaching slurry, extraction of gold from the cyanide or cyanide slurry, and smelting of the finished product.
Gold ore beneficiation process:
Gold ore beneficiation process and operation procedures: silo → jaw crusher → cone crusher → trough type washing machine → belt conveyor → spiral classifier → energy saving ball mill → shaker → self-suction mechanical agitating flotation machine →High efficiency concentrator→leaching tank
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