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Tungsten ore sorting method

A sorting and tungsten ore technology, applied in chemical instruments and methods, solid separation, wet separation, etc., can solve the problems of high labor cost and long process flow

Active Publication Date: 2020-06-05
GANZHOU NONFERROUS METALLURGICAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process is long and labor costs are high

Method used

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  • Tungsten ore sorting method

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Embodiment 1

[0055] A copper and tungsten primary polymetallic symbiotic ore (black and white tungsten symbiotic ore) in Jiangxi, WO 3 The content of tungsten is 0.28%. Tungsten mainly exists in two forms of wolframite and scheelite. Wolframite accounts for about 54%, and scheelite accounts for about 42%. Other metal sulfides are mainly chalcopyrite, followed by magnetite Iron ore and pyrite; gangue minerals are mainly quartz, followed by feldspar, biotite and chlorite. according to figure 1 The flow chart shown is to sort the black and white tungsten paragenetic ore, including the following steps:

[0056] After the black and white tungsten symbiotic ore is excavated, the raw ore with a particle size of +120mm is hand-selected and discarded, and then manually hammered into the raw ore with a particle size of -120mm. After that, it is screened and classified into -120+50mm, -50+27mm , -27+16mm, -16+12mm and -12mm five grain grades, the raw ore of -120+50mm, -50+27mm and -27+16mm three gr...

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Abstract

The invention provides a tungsten ore sorting method and belongs to the technical field of ore dressing. According to the tungsten ore sorting method, tungsten ore drawing raw ore is pre-selected anddiscarded to obtain qualified ore containing primary mud; one-stage closed-circuit grinding is performed on the qualified ore to obtain ore pulp to be sorted; flotation desulfurization is performed onthe ore pulp to be sorted, and obtained desulfurized tailing ore pulp is graded to obtain coarse ore pulp and fine ore pulp; a gravity separation and magnetic separation combined process of a shakingtable is adopted on the coarse ore pulp and the fine ore pulp to obtain wolframite concentrate, scheelite concentrate, shaking table middlings, shaking table overflow and discardable shaking table tailings; and after the shaking table middlings are subjected to roll milling, wolframite concentrate, scheelite concentrate, shaking table overflow and discardable shaking table tailings are obtained through the gravity separation and magnetic separation combined process of the shaking table; and after all the shaking table overflows are combined and then reselected, fine mud concentrate and discardable tailings are obtained. The method provided by the invention not only can realize effective recovery of tungsten resources, but also has the characteristics of simple flow structure, low production cost, ecological environment friendliness and the like.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a method for separating tungsten ore. Background technique [0002] Tungsten is a precious rare metal, known as "the tooth of industry". Tungsten minerals include wolframite, scheelite and scheelite. At present, in my country's tungsten ore, especially black tungsten ore-based beneficiation, the raw ore out of the hole is usually hand-selected and discarded to obtain qualified ore and primary mud. The qualified ore is mainly heavy by jigging and shaking table. The selection and sorting process, the fine mud is treated separately by shaking table, and the combined process of flotation-gravity separation-magnetic separation is used for selection, that is, "four-stage hand selection, three-stage jigging, four-stage shaking table, fine mud returning to the team" Separate treatment, gravity separation, wool sand grinding, floating desulfurization, floating tail heavy-magnet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03B1/00B03B9/00
CPCB03B1/00B03B7/00B03B9/00
Inventor 张婷李平李振飞沈新春古吉汉袁亚君王强强李秀珍
Owner GANZHOU NONFERROUS METALLURGICAL RES INST
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