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Tin-tungsten ore selection method

A beneficiation method and tin ore technology, applied in the field of tungsten-tin ore beneficiation, can solve problems such as low recovery rate, difficulty in obtaining beneficiation indicators, over-grinding and over-powdering of metals, etc., to achieve low production costs, ensure tungsten-tin recovery rate, and equipment The effect of fewer units

Inactive Publication Date: 2015-11-18
广西冶金研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the tungsten-tin minerals are closely symbiotic, the grade of the main metal is low, and the embedded particle size is uneven, grinding the minerals until the monomers are dissociated will easily lead to overgrinding and over-powdering of the metals. The recovery rate is low, it is difficult to obtain the ideal beneficiation index

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  • Tin-tungsten ore selection method

Examples

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Effect test

Embodiment 1

[0020] An example of the beneficiation method of tungsten-tin ore of the present invention, comprises the steps:

[0021] 1. Mineral raw materials:

[0022] Raw ore main metal grade: Sn0.32%, WO 3 0.035%. Phase analysis shows that tin exists in the form of cassiterite, and tungsten is mainly wolframite with a small amount of scheelite.

[0023] 2. Operation steps and control technical conditions:

[0024] (1) Grind the ore to -0.35mm, and use jigging to separate the minerals into two branches: coarse-grained heavy minerals and fine-grained aggregates. The coarse-grained heavy minerals refer to monomer tin and tungsten with relatively coarse particle size Minerals and rich contiguous bodies with large specific gravity and fine-grained aggregates refer to single tin-tungsten minerals with finer particle size and poor contiguous bodies with small specific gravity, which are hereinafter referred to as coarse-grained heavy minerals and fine-grained aggregates, and then The two ...

Embodiment 2

[0034] Another example of the beneficiation method of tungsten-tin ore of the present invention comprises the following steps:

[0035] 1. Mineral raw materials:

[0036] Raw ore main metal grade: Sn0.24%, WO 3 0.22%. Phase analysis shows that tin exists in the form of cassiterite, and tungsten is mainly wolframite.

[0037] 2. Operation steps and control technical conditions:

[0038] (1) The ore is ground to a particle size of -0.30mm, and the minerals are divided into two branches by jigging separation: coarse-grained heavy minerals and fine-grained aggregates, and then the two minerals are separated separately.

[0039] (2) Coarse-grained heavy minerals are roughed through the spiral chute to obtain the spiral chute rough concentrate and spiral chute tailings, and the spiral chute coarse concentrate shaker is re-selected to obtain tungsten-tin coarse concentrate 1, shaker medium ore 1 and shaker tailings 1;

[0040] (3) The fine-grained aggregate minerals are recovere...

Embodiment 3

[0048] Another example of the beneficiation method of tungsten-tin ore of the present invention comprises the following steps:

[0049] 1. Mineral raw materials:

[0050] Raw ore main metal grade: Sn0.083%, WO 3 0.46%. Phase analysis shows that tin exists in the form of cassiterite, and tungsten is mainly wolframite.

[0051] 2. Operation steps and control technical conditions:

[0052] The ore is ground to a particle size of -0.36mm, and the coarse-grained heavy minerals and fine-grained aggregates are obtained by jigging separation, and then the coarse-grained heavy minerals and fine-grained aggregates are separated separately.

[0053] (2) Coarse-grained heavy minerals are roughed through the spiral chute to obtain the spiral chute rough concentrate and spiral chute tailings, and the spiral chute coarse concentrate shaker is re-selected to obtain tungsten-tin coarse concentrate 1, shaker medium ore 1 and shaker tailings 1;

[0054] (3) The fine-grained aggregate minerals...

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Abstract

Disclosed is a tin-tungsten ore selection method. The method comprises the following steps that tin-tungsten ore is ground to achieve partial monomer separation, and then the jigging branch separation technology is adopted for ore separation to obtain coarse grain heavy ore and fine grain aggregation, wherein the coarse grain heavy ore is monomer tin-tungsten ore with the coarse granularity and rich aggregation with the large specific gravity, and the fine grain aggregation is monomer tin-tungsten ore with the fine granularity and lean aggregation with the small specific gravity; then, separation is performed on the coarse grain heavy ore and the fine grain aggregation, and reselection and recycling of tin and tungsten are achieved. By the adoption of the tin-tungsten ore selection method, tin-tungsten ore can be effectively prevented from being excessively ground or excessively powdered; the technical problems that the main metal ore level is low, the insetting grain size thickness is not uniform and separation is hard are solved; and the fine ore quality and the tin-tungsten recycling rate are better considered, and the high fine ore level and the ore selection recycling rate are obtained.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal beneficiation, in particular to a beneficiation method for tungsten-tin ore whose main metal grade is low in raw ore, minerals are easy to be over-grinded, and the particle size of mineral embedding is uneven, and it is difficult to separate tungsten and tin. Background technique [0002] Tungsten-tin ore is a brittle mineral, which is easily over-grinded and powdered during mineral processing, which brings a lot of inconvenience to the beneficiation process. Preventing tungsten-tin ore from over-grinding and fine-grained tungsten-tin separation is a recognized technical problem in the world's mineral processing field . In tungsten-tin symbiotic ore deposits, in order to comprehensively recover tungsten-tin minerals, the raw ore is generally ground until the basic monomers are dissociated, and the tailings are pre-thrown by a jig or a spiral chute. When the tungsten-tin minerals are clo...

Claims

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Application Information

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IPC IPC(8): B03B7/00
Inventor 陆智伦绍雄李宁钧刘子帅蔡振波阙绍娟程秦豫
Owner 广西冶金研究院有限公司
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