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X-ray radiation pre-selecting enrichment method for copper sulfide ore with low grade

A copper sulfide, low-grade technology, used in chemical instruments and methods, solid separation, classification, etc., can solve problems such as waste of resources, achieve stable operation, improve economic and technical indicators and comprehensive benefits, and improve equipment utilization.

Inactive Publication Date: 2012-06-20
NORTHEASTERN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in recent years, many copper sulfide mines in my country have only mined high-quality copper ore, and many copper sulfide ores with relatively low raw ore grades have not been utilized, resulting in a great waste of resources

Method used

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  • X-ray radiation pre-selecting enrichment method for copper sulfide ore with low grade
  • X-ray radiation pre-selecting enrichment method for copper sulfide ore with low grade
  • X-ray radiation pre-selecting enrichment method for copper sulfide ore with low grade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The low-grade copper sulfide ore raw ore that adopts contains Cu 0.21% by weight percentage;

[0025] Use a crusher to crush the raw ore of low-grade copper sulfide ore to ≤200mm;

[0026] Sieve the crushed material with a sieving machine with a sieve size of 20mm. The material with a particle size of 20-200mm on the sieve is used as the copper sulfide ore feed; the material under the sieve is treated as a middle ore; The conveyor belt is transported to the mine bin of the X-ray radiation sorter;

[0027] Turn on the X-ray radiation sorter and the ore bin feeder, set the spectral ratio threshold for the separation of concentrate and tailings in the control system of the X-ray radiation sorter, the threshold is 0.15, and the ore bin feeder The copper sulfide ore in the feed is fed into the X-ray radiation sorting machine through the ore bin feeder, and after being sorted by the X-ray radiation sorting machine, the copper ore concentrate with a copper ore spectral ratio ...

Embodiment 2

[0031] The low-grade copper sulfide ore raw ore that adopts contains Cu 0.34% by weight percentage;

[0032] Use a crusher to crush the raw ore of low-grade copper sulfide ore to ≤200mm;

[0033] Sieve the crushed material with a sieving machine with a sieve size of 35mm. The material with a particle size of 35-200mm on the sieve is used as the copper sulfide ore feed; the material under the sieve is treated as a middling ore; The conveyor belt is transported to the mine bin of the X-ray radiation sorter;

[0034] Turn on the X-ray radiation sorter and the ore bin feeder, set the spectral ratio threshold for the separation of concentrate and tailings in the control system of the X-ray radiation sorter, the threshold is 0.25, and the ore bin feeder The copper sulfide ore in the feed is fed into the X-ray radiation sorting machine through the ore feeder, and after being sorted by the X-ray radiation sorting machine, the copper sulfide ore spectral ratio is greater than 0.25. F...

Embodiment 3

[0038] The raw ore of low-grade copper sulfide ore contains Cu0.28% by weight percentage;

[0039] Use a crusher to crush the raw ore of low-grade copper sulfide ore to ≤200mm;

[0040] Sieve the crushed material with a sieving machine with a sieve size of 30mm. The material with a particle size of 30-200mm on the sieve is used as the copper sulfide ore feed; the material under the sieve is treated as a middling ore; The conveyor belt is transported to the mine bin of the X-ray radiation sorter;

[0041] Turn on the X-ray radiation sorter and the ore bin feeder, set the spectral ratio threshold for the separation of concentrate and tailings in the control system of the X-ray radiation sorter, the threshold is 0.20, and the ore bin feeder The copper sulfide ore in the feed is fed into the X-ray radiation sorting machine through the ore bin feeder, and after being sorted by the X-ray radiation sorting machine, the copper sulfide ore concentrate and ore with ore spectral ratio g...

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Abstract

The present invention provides an X-ray radiation pre-selecting enrichment method for copper sulfide ores with a low grade, which belongs to the technical field of ore processing. The method includes steps as follows: 1) crushing original ores of the copper sulfide ores with a low grade into particles with a size of no more than 200 mm; 2) sieving the crushed materials to obtain the copper sulfide feeding through a sieving machine with 20-50 mm sieve mesh; 3) setting a grade threshold within 0.15-0.30 for sorting ore concentrates and tailings in a control system of an X-ray sorting machine, putting the copper sulfide ore feeding into the X-ray sorting machine, and sorting the copper sulfide ore feeding to obtain the ore concentrates and the tailings of the copper sulfide ore. The method has high mechanization degree and automation degree, reasonable technique, stable operation, and low ore sorting cost, which is easy to realize the industrialization of copper ores with a low grade.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, in particular to an X-ray radiation preselection enrichment method for low-grade copper sulfide ores. Background technique [0002] Copper is one of the earliest metals discovered and used by humans. Copper is soft, malleable, chemically stable, corrosion-resistant, fusible, has a small friction coefficient, and has good electrical and thermal conductivity. Therefore, copper and copper alloys have been widely used in modern national defense, modern industry, cutting-edge science and technology, and human life. Wide range of applications. [0003] The copper-bearing minerals known in nature mainly include copper oxide ore and copper sulfide ore, but the reserves of copper oxide ore are small. Therefore, it is mainly copper sulfide ore that is of economic significance at present. With the development of my country's national economic construction, the demand for copper is increasing, ...

Claims

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Application Information

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IPC IPC(8): B02C21/00B02C23/08B07B13/00
Inventor 韩跃新印万忠刘明宝孙中强
Owner NORTHEASTERN UNIV
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