Gold tailing treatment process

A treatment process, technology for gold mine tailings, applied in the direction of solid separation, wet separation, chemical instruments and methods, etc., can solve the problems of low production technology level, low recovery rate, poor production indicators, etc.

Inactive Publication Date: 2012-01-25
中矿金业股份有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] For gold mines built before the 1970s, most of the concentrators used traditional processes such as flotation, gravity separation, amalgamation, amalgamation + flotation, o...

Method used

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Embodiment Construction

[0013] see figure 1 Shown, the gold ore tailings treatment process of the present invention comprises the following process steps:

[0014] (1) First, the original tailings slurry is re-selected and separated through the spiral chute 1. The width of the selection area of ​​the spiral chute 1 is set to 8-9CM. The width can be adjusted according to the site. The spiral chute recycles the large-grained ore pulp within the width of 8-9CM. Use the fine-grained slurry outside the width of 8-9CM for tailings filling;

[0015] (2) the ore pulp recovered in step (1) is carried out through the first single-layer thickener 2 to separate water and ore, and the separated water is discharged;

[0016] (3) the ore that step (2) is obtained is ground by ball mill 3, and the ore fineness of grinding is that the ore particles passing through the 200 hole / square inch sieve have 55 ± 2%, and the pulp concentration is 33 ± 2%;

[0017] (4) The ore processed in step (3) is sent to classifier 4 fo...

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Abstract

The invention relates to a gold tailing treatment process, which comprises the steps of: conducting gravity separation for original tailing pulp through a spiral chute, recovering large particles of pulp within the width of 8-9CM, and using fine-grains of pulp outside the width of 8-9CM as tailing filling; then, conducting water and ore separation for the recovered pulp through a fist single-layer thickener, and draining away the separated water; finely grinding the obtained ore through a ball grinder, with the grinding fineness being 55+/-2% of ore grains passing a screen of 200 holes/ square inch and the pulp density being 33+/-2%; sending the processed ore into a classifier for fractionating, making the ore meeting the dimensional requirement enter a flotation process, and making the ore not meeting the granular size returning to the ball grinder for circular treatment; and finally recovering the obtained fine ore through treatment, and transporting the obtained tailings through treatment to an ore district through a water isolation pump to be used for tailing filling. The gold tailing treatment process can comprehensively recover gold and valuable elements in the tailings, so that the utilization ratio of resources can be enhanced, and the economic benefit of enterprises can be increased.

Description

technical field [0001] The invention relates to a processing technology for tailings, in particular to a processing technology for gold mine tailings. Background technique [0002] For gold mines built before the 1970s, most of the concentrators used traditional processes such as flotation, gravity separation, amalgamation, amalgamation + flotation, or gravity + flotation, with low production technology, poor production indicators, and gold recovery. low rate. The gold grade in the tailings is mostly above 1g / t, and some mines even reach 2-3g / t. For a few ores with complex mineral components or high-grade ores, the gold grade in the tailings is above 3g / t. In addition, gold ore often contains associated elements, and after extraction of gold and silver, these useful components can be recovered to a certain extent. Many gold mine ores contain associated components that can be comprehensively recovered, such as lead, zinc, copper, iron, sulfur, etc. Among the many associate...

Claims

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Application Information

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IPC IPC(8): B03B7/00
Inventor 李建波赵金菊温建波
Owner 中矿金业股份有限公司
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