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Method for separating pre-concentrated copper gold by adopting X-ray radiation

A pre-enrichment and ray technology, applied in the field of mineral processing, can solve problems such as limited application, achieve the effect of realizing industrialization, improving economic and technical indicators and comprehensive benefits, and improving equipment utilization

Inactive Publication Date: 2013-05-01
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the minimum separation limit of the equipment for the content of the target minerals can only reach 100ppm, which limits its application in gold ore beneficiation

Method used

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  • Method for separating pre-concentrated copper gold by adopting X-ray radiation
  • Method for separating pre-concentrated copper gold by adopting X-ray radiation
  • Method for separating pre-concentrated copper gold by adopting X-ray radiation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Crushing: Crushing the copper-bearing gold ore to less than 150mm through a crusher;

[0028] (2) Screening: Use a screening machine with a screen hole size of 90mm to screen the crushed material, and the material under the screen (-90mm) will be processed separately, and the material on the screen will be transported to the X-ray radiation sorter for pre-selection by the belt conveyor In the ore bin, the grade of copper in the copper-bearing gold ore on the sieve is 0.42%, the grade of gold is 3.46g / t, and the rest are gangue minerals;

[0029] (3) X-ray radiation sorting machine pre-selection: the material on the screen obtained in step (2) is fed to the X-ray radiation sorting machine through the feeder, and in the control system of the X-ray radiation sorting machine according to the original ore The copper content in the concentration set the threshold for the separation of concentrate and tailings to be 0.1. After being sorted by the X-ray radiation sorter, th...

Embodiment 2

[0036] (1) Sieving: Screen the under-sieve material (-90mm) obtained in step (2) of Example 1 with a sieving machine with a sieve hole size of 30mm, and the under-sieve material (-30mm) will be treated separately, and the sieve The material is transported to the mine bin of the X-ray radiation sorter through the conveyor belt. The grade of copper in the copper-bearing gold ore on the screen is 0.863%, the grade of gold is 5.36g / t, and the rest are gangue minerals;

[0037] (2) X-ray radiation sorting machine pre-selection: feed the sieved material obtained in step (1) to the X-ray radiation sorting machine through the feeder, and in the control system of the X-ray radiation sorting machine according to the original ore The copper content in the copper content sets the threshold value for the separation of concentrate and tailings at 0.06. After being sorted by the X-ray radiation sorter, the ore with the threshold value greater than 0.06 will be considered as concentrate and en...

Embodiment 3

[0043] (1) Crushing: Crushing the copper-bearing gold ore to less than 150mm through a crusher;

[0044](2) Screening: Use a screening machine with a screen hole size of 100mm to screen the crushed material, and the material under the screen (-100mm) will be processed separately, and the material on the screen will be transported to the X-ray radiation sorter for pre-selection by the belt conveyor In the ore warehouse, the grade of copper in the copper-containing gold ore on the screen is 0.45%, the grade of gold is 3.25g / t, and the rest are gangue minerals;

[0045] (3) X-ray radiation sorting machine pre-selection: the material on the screen obtained in step (2) is fed to the X-ray radiation sorting machine through the feeder, and in the control system of the X-ray radiation sorting machine according to the original ore The copper content in the concentration set the threshold for the separation of concentrate and tailings to be 0.15. After being sorted by the X-ray radiatio...

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Abstract

The invention belongs to the technical field of mineral processing and particularly relates to a method for separating pre-concentrated copper gold by adopting X-ray radiation. The method comprises the steps as follows: crushing the copper gold to be less than 150 mm through a crushing machine; sieving the crushed material by a sieving machine with the mesh size of not less than 20 mm; feeding the sieved material onto an X-ray radiation separating machine through a feeding machine; setting a separating threshold value according to the content of copper in original mineral in a control system of the X-ray radiation separating machine; separating by the X-ray radiation separating machine; and separating out gold mineral concomitant with copper mineral to obtain gold concentrate and tailings. The method is domestically initiated, the target component of the treated mineral is low in quality, the mechanical and automatic level is high, the mineral separation cost is saved, the quality of the separated gold is greatly improved, and the utilization rate of equipment is remarkably increased; and meanwhile, the process technology is reasonable, the operation is stable, the copper gold pre-selection industrialization is facilitated, and the economic technical index and the comprehensive benefit of dressing plants are greatly increased.

Description

[0001] technical field [0002] The invention belongs to the technical field of mineral processing, and in particular relates to a method for pre-enrichment of copper-bearing gold ore by adopting X-ray radiation sorting. Background technique [0003] Because of its rarity, specialness and preciousness, gold has been regarded as the head of hardware since ancient times, and has the title of "King of Metals". Gold has the characteristics of good physical properties, stable chemical properties, high ductility, and scarcity. It is not only a special currency used for financial reserves and investment, but also an important currency in the jewelry industry, electronics industry, modern communications, and aerospace industries. important material for the department. [0004] China is relatively rich in gold mine resources. There are 1,265 mining areas with proven reserves, and the total reserves are 4,265 tons, ranking seventh in the world. Among them, the associated gold res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07C5/346
Inventor 王泽红韩跃新陈晓龙李启亮
Owner NORTHEASTERN UNIV
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