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Cyaniding carbon-in-pulp technology thick reclaimed water activated carbon adsorption device

An activated carbon adsorption and dense technology is applied in the field of dense return water activated carbon adsorption device of cyanidation carbon slurry process, which can solve the problem of high operating cost and achieve the effects of improving recovery rate, reducing accumulation and avoiding inhibition.

Inactive Publication Date: 2019-04-19
内蒙古包头鑫达黄金矿业有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Some enterprises adopt the ion exchange resin method to remove metal impurity ions in the circulating water in the cyanide carbon slurry gold leaching process, but considering the strict process requirements and high operating costs of the ion exchange resin method, most enterprises are discouraged

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  • Cyaniding carbon-in-pulp technology thick reclaimed water activated carbon adsorption device

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Embodiment Construction

[0009] figure 1 It is a kind of cyanide carbon slurry process thick backwater activated carbon adsorption device embodiment of the present invention, is the full mud cyanide carbon slurry method recovery gold flow process of Inner Mongolia Baotou Xinda Gold Mining Co., Ltd. (hereinafter referred to as Xinda Company), wherein adopts A dense backwater activated carbon adsorption device for the cyanided carbon slurry process of the present invention has been developed.

[0010] Xinda Company's original process flow of all mud cyanide carbon slurry method is as follows: figure 2 shown. The ore is fed into the first overflow ball mill (2) and the first cyclone group (3) from the fine ore bin (1) for rough grinding, and then enters the second overflow ball mill (4) The closed-circuit grinding process composed of the second stage cyclone group (5) is used for fine grinding, the processing capacity is 3000t / d, and the final grinding product fineness is -200 mesh 90%. Grinding prod...

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Abstract

The invention relates to a cyaniding carbon-in-pulp technology thick reclaimed water activated carbon adsorption device used for recovering free gold, harmful impurities and heavy metal ions from thick reclaimed water in a cyaniding carbon-in-pulp gold leaching technology. A powder ore bin (1), a first stage ball mill (2), a first stage cyclone set (3), a second stage ball mill (4), a second stagecyclone set (5), a thickener (6), a leaching adsorption tank (7) and other equipment are involved in the process of the cyaniding carbon-in-pulp gold leaching technology, and the thick reclaimed water is recycled in the ore grinding and thickening processes. The cyaniding carbon-in-pulp technology thick reclaimed water activated carbon adsorption device is composed of 1-10 adsorption tanks (8) inseries, activated carbon in the adsorption tanks is utilized to effectively recover the free gold from the thick reclaimed water in the process of the cyaniding carbon-in-pulp gold leaching technology, so that accumulation of the harmful impurities and the heavy metal ions in the ore grinding and thickening processes is reduced, the inhibition effect of the free gold on the cyaniding process in the main process of the cyaniding carbon-in-pulp gold leaching technology is avoided, the cyanide leaching effect of the gold is improved, the consumption of cyanides is reduced, and the recovery rateof the gold in production is improved.

Description

technical field [0001] The invention relates to a dense backwater activated carbon adsorption device for the cyanide carbon slurry process used for recovering free gold, harmful impurities and heavy metal ions in the dense backwater in the cyanide carbon slurry gold leaching process. Background technique [0002] The cyanide carbon slurry gold leaching process consists of a powder ore bin (1), a first-stage ball mill (2), a first-stage cyclone group (3), a second-stage ball mill (4), and a second-stage cyclone group (5), thickener (6), leaching adsorption tank (7) and other equipment, and the thickened return water returns to the grinding machine for repeated use. Due to the repeated recycling of dense return water in the grinding and thickening process, the accumulation of harmful impurities and heavy metal ions in the pulp is relatively serious. After entering the leaching adsorption tank (7), it will inhibit the cyanidation reaction of gold and affect the recovery of gold...

Claims

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Application Information

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IPC IPC(8): C22B11/08C22B7/00
CPCC22B7/005C22B11/08
Inventor 佐太东庞玉明杨志芳李伟范保建
Owner 内蒙古包头鑫达黄金矿业有限责任公司
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