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Comprehensive utilization method for gold tailings containing gold, iron and feldspar

A technology for gold tailings and feldspar, applied in recycling technology, solid separation, mechanical material recycling, etc., can solve the problems of low comprehensive utilization and low utilization value, and achieve improved comprehensive recycling rate, high economic and social benefits , to achieve the effect of zero emissions

Active Publication Date: 2019-06-18
SHANDONG HUATE MAGNET TECH
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Problems solved by technology

These transformation measures all have the problem of low comprehensive utilization degree and low utilization value

Method used

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  • Comprehensive utilization method for gold tailings containing gold, iron and feldspar

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Embodiment Construction

[0023] The present invention will be described in further detail without limitation in conjunction with the accompanying drawings and examples below.

[0024] Such as figure 1 Shown, the gold tailing comprehensive utilization method containing gold, iron, feldspar of the present invention comprises the following steps:

[0025] S10 tailings classification desliming: the gold tailings are screened by screening equipment, and the screening equipment preferably adopts a high-frequency vibrating screen with a mesh number of 30 mesh; the material under the screen enters the desliming equipment to remove fine-grained mud, The desliming equipment preferably adopts a desliming bucket, which is used to remove fine-grained mud below 0.045mm; the coarse-grained sand on the screen after vibratory screening is returned to the concentrator for re-grinding and gold extraction.

[0026] S20 Separation of magnetite and gold-bearing minerals: the under-screen material after classification and ...

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Abstract

The invention discloses a comprehensive utilization method for gold tailings containing gold, iron and feldspar. The comprehensive utilization method comprises the following steps: graded desliming ofthe tailings; separation of magnetite and gold-containing minerals; strong magnetic separation to reduce impurities; dehydration of concentrate; and concentration and dry discharge of the impurities.By means of the graded desliming, coarse particle raw tailings and fine particle oxide impurities which affect the quality of feldspar are removed, and the product granularity is controlled effectively. By means of a spiral chute, a drum magnetic separator and a table and by combining reselection and magnetic separation, magnetite and gold-containing sulfide mineral with value are separated effectively, and conditions are created for a follow-up strong magnetic separation impurity-reducing flow; and by means of three strong magnetic separation impurity-reducing operations with different magnetic field intensity, it is sufficiently ensured that magnetic impurities in the feldspar are separated and removed effectively. The magnetite and gold-containing sulfide mineral with value are also recovered while the high-quality feldspar is obtained. Plus sieve coarse grain sand is returned to a concentration plant to be subjected to grinding and gold selection again, and fine grain mud and themagnetic impurities serve as cement or building material raw materials, so that zero discharge of the tailings is achieved.

Description

technical field [0001] The invention relates to the technical field of comprehensive utilization of tailings resources, in particular to a method for comprehensive utilization of gold tailings containing gold, iron and feldspar. Background technique [0002] There are many gold producing areas in my country, and several trillion tons of flotation gold tailings are produced every year. After decades of discharge accumulation, new and old tailings ponds occupy a large amount of valuable land resources, and the residual mineral processing agents in the tailings have caused serious pollution to the soil, air, vegetation, and groundwater around the tailings ponds. The reservoir poses a safety hazard to the lives and properties of downstream residents. According to the provisions of the new national environmental protection policy, new tailings ponds are no longer approved, and the comprehensive utilization of old tailings ponds is imperative. The comprehensive utilization of gol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/06
CPCY02W30/52
Inventor 王建磊彭少伟魏黎明刘静静卢昊李军安峰文李会建王成业
Owner SHANDONG HUATE MAGNET TECH
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