Grading and branching streaming flotation method of tungsten ore

A branch series flow and flotation technology, applied in flotation, solid separation, etc., can solve the problems of lower flotation index, slow flotation rate, affecting the purity and overall quality of concentrate, and achieve the improvement of flotation technical indicators, Improve the performance of sorting indicators

Active Publication Date: 2013-09-18
中钨共享服务(湖南)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Most of the existing flotation methods are direct flotation of ore pulp after ore grinding. The coarser ore part in the ore pulp has a faster flotation rate and is easier to select, while the finer ore slime part has a slower flotation rate and is difficult to select. Those that interfere with each other will reduce the overall flotation index and affect the purity and overall quality of the concentrate

Method used

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  • Grading and branching streaming flotation method of tungsten ore
  • Grading and branching streaming flotation method of tungsten ore
  • Grading and branching streaming flotation method of tungsten ore

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Embodiment 1

[0035] Such as figure 1 Shown, the graded branch serial flow flotation method of a kind of tungsten ore of the present invention, it comprises the following steps:

[0036] 1) Firstly, the tungsten ore is finely ground to a particle size smaller than 0.074mm, and the yield accounts for 85%;

[0037] 2) Adjust the finely ground tungsten ore into slurry, and then use hydrocyclone classification equipment to divide it into the ore part with high flotation speed and the slime part with low flotation speed. The yield of the ore part is 95%, and the ore part is The particle size is 0.10mm; the slime yield is 5%, and the particle size of the slime part is 0.010mm;

[0038] 3) Auxiliaries need to be added before partial flotation of ore and a conventional mixer is used. Auxiliaries include water glass 2800g / t, aluminum sulfate 550g / t, activator lead nitrate 500g / t, chelating collector 300g / t, fatty acid Collector 45 / t, water glass and aluminum sulfate stirring time of the present in...

Embodiment 2

[0043] A kind of graded branch series flow flotation method of tungsten ore of the present invention, it comprises the following steps:

[0044] 1) First, the tungsten ore is finely ground to a particle size smaller than 0.074mm, and the yield accounts for 95%;

[0045] 2) Adjust the finely ground tungsten ore into slurry, and then use hydrocyclone classification equipment to divide it into the ore part with high flotation speed and the slime part with low flotation speed. The yield of the ore part is 55%, and the ore part The particle size is 0.10mm; the slime yield is 45%, and the particle size of the slime part is 0.001mm;

[0046] 3) Auxiliaries need to be added before partial flotation of ore and a conventional mixer is used. Auxiliaries include water glass 3500g / t, aluminum sulfate 300g / t, activator lead nitrate 700g / t, chelating collector 500g / t, fatty acid Collector 20 / t, water glass and aluminum sulfate stirring time of the present invention need about seven minutes,...

Embodiment 3

[0051] A kind of graded branch series flow flotation method of tungsten ore of the present invention, it comprises the following steps:

[0052] 1) First, the tungsten ore is finely ground to a particle size smaller than 0.074mm, and the yield accounts for 75%;

[0053] 2) Adjust the finely ground tungsten ore into slurry, and then use hydrocyclone classification equipment to divide it into the ore part with high flotation speed and the slime part with low flotation speed. The yield of the ore part is 70%, and the ore part The particle size is 0.10mm; the slime yield is 30%, and the particle size of the slime part is 0.01mm;

[0054] 3) Auxiliaries need to be added before partial flotation of ore and a conventional mixer is used. Auxiliaries include water glass 1500g / t, aluminum sulfate 700g / t, activator lead nitrate 300g / t, chelating collector 200g / t, fatty acid Collector 80 / t, water glass and aluminum sulfate stirring time of the present invention need about seven minutes, ...

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Abstract

The invention discloses a grading and branching streaming flotation method of tungsten ore. The grading and branching streaming flotation method of the tungsten ore comprises the following steps: firstly, finely grinding the tungsten ore; secondly, grading ore pulp of the ground tungsten ore into an ore sand part with a high flotation speed and an ore mud part with a low flotation speed by using grading equipment; thirdly, floating the ore sand part to obtain medium-grade tungsten concentrate and ore sand tailing; and finally, streaming the ore sand tailing to the ore mud part for floating, and obtaining low-grade tungsten concentrate and streamed tailing. By the grading and branching streaming flotation method of the tungsten ore, the size fraction for floating the ore pulp can be improved and the flotation performance and flotation indexes of the ore mud part can be improved.

Description

technical field [0001] The invention relates to the technical field of mineral processing engineering, and more particularly relates to a tungsten ore classification branch series flow flotation method. Background technique [0002] Tungsten is a metal element with element symbol W, atomic number 74, and relative atomic mass 183.85. Metal tungsten is steel gray or silver white, with high hardness, high melting point (3422°C), high density (19.35g / cm 3 ), has red hardness, and still has high tensile strength at temperatures above 1650 ° C. It is not eroded by air at room temperature. It is one of the important rare refractory metals. At present, the main use of tungsten is to manufacture cemented carbide (cutting tools, knives, drilling tools and wear-resistant parts), filaments, high-speed cutting alloy steel and heat-resistant special steel, rocket propulsion nozzles and firearms, etc. Tungsten has extensive and important applications in electrical, metal rolling, machini...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/018B03D101/02
Inventor 邓海波李晓东陈玉林魏大为
Owner 中钨共享服务(湖南)有限公司
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