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Beneficiation method for airflow classification of garnet ore with uneven disseminated grain size

A beneficiation method, garnet technology, applied in the direction of solid separation, etc., can solve the problems of uneven distribution of garnet coarse and fine particles, poor sorting effect, poor beneficiation index, etc., to improve the overall recovery rate, reduce interference, and effectively recover Effect

Inactive Publication Date: 2020-08-07
BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, gravity separation and magnetic separation are generally better for recovering coarse and medium-sized garnets, while fine-grained (below 0.1mm) garnets have poor separation effects and large losses.
[0004] There are many garnet ores in my country with uneven distribution of coarse and fine grains, and garnet ores are inherently brittle, and a large number of fine-grained garnets are produced during the crushing and grinding process. Difference

Method used

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  • Beneficiation method for airflow classification of garnet ore with uneven disseminated grain size
  • Beneficiation method for airflow classification of garnet ore with uneven disseminated grain size

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The main component mineral of a garnet ore in Shanxi is garnet, with a garnet content of 35%, followed by quartz, and a small amount of pyroxene, amphibole, feldspar, mica, trace rutile and others.

[0035] Such as figure 1 with figure 2 As shown, a beneficiation method for split separation of garnet ore with uneven distribution particle size is used for beneficiation of the above-mentioned garnet ore in Shanxi, which may specifically include the following steps:

[0036] Step 1. The steps of raw ore crushing: take the above-mentioned garnet ore in Shanxi as raw ore, first use a crusher to jaw crush the raw ore, and then perform roller crushing until the particle size is not greater than 2mm, and then pass the 0.85mm standard Sieve, the ore with a particle size greater than 0.85mm is subjected to closed-circuit grinding with a rod mill, that is, the ore with a particle size greater than 0.85mm is ground through the rod mill, and the ground ore after grinding is passed throug...

Embodiment 2

[0044] A garnet mine in Lianyungang, Jiangsu Province is mainly composed of garnet and pyroxene, with a garnet content of 52.93%, followed by actinolite, amphibole, etc., and a small amount of rutile, chlorite, serpentine, albite, etc. .

[0045] Such as figure 1 with figure 2 As shown, a beneficiation method for split separation of garnet ore with uneven distribution particle size is used for beneficiation of a garnet ore in Lianyungang, Jiangsu. The specific steps are the same as in Example 1 of the present invention, and the difference lies in the above A garnet mine in Lianyungang, Jiangsu is used as a raw ore.

[0046] Specifically, after analysis and testing, the final beneficiation technical indicators of Example 2 of the present invention are shown in Table 2 below:

[0047] Table 2

[0048] product name Garnet content,% Mineral recovery rate,% Coarse garnet concentrate93.4345.34 Fine-grained garnet concentrate 91.5237.12

[0049] In summary, the embodiments of the pre...

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Abstract

The invention discloses a beneficiation method for airflow classification of garnet ore with the uneven disseminated grain size. The method includes the steps that raw ore is crushed with a crushing machine until the grain size is not larger than 2mm, closed-circuit ore grinding is conducted through a rod mill until all the raw ore passes through a standard sieve of 0.6-1.2mm, and thus well-groundraw ore can be obtained; the well-ground raw ore passes through a standard sieve of 0.11-0.18mm, and over-sieve coarse graded mineral and under-sieve fine graded mineral are obtained; the over-sievecoarse graded mineral is subjected to low-intensity magnetic separation so that strongly-magnetic mineral can be removed, then strong magnetic separation is conducted, and a coarse grain garnet concentrate product is obtained; and fine silt of the under-sieve fine graded mineral is removed at first, then ore pulp is made, a pH regulator, an activator and a mixed collector are added into the ore pulp for flotation, and thus a fine grain garnet concentrate product can be obtained. By adoption of the beneficiation method, the interference to coarse graded garnet magnetic separation by the fine graded mineral can be reduced, the concentrate quality of coarse grain garnet is improved and the overall recovery rate of garnet concentrate can be effectively increased.

Description

Technical field [0001] The invention relates to the technical field of garnet ore beneficiation, in particular to a beneficiation method for garnet ore separation and separation with uneven embedded particle size. Background technique [0002] Garnet is a non-metallic mineral with unique physical and chemical properties and mineralogical properties. In recent years, the application field has been expanding, the output has been increasing, the price has been rising, the sales income of the industry has risen year by year, and the vitality of the industry has increased year by year. [0003] There are very few reports on the production process of garnet in my country. At present, it is known that garnet beneficiation generally adopts gravity separation, magnetic separation or combined magnetic gravity separation processes, such as elutriation, dry jigging, shaker, wet magnetic separation, dry magnetic separation, etc. . However, gravity separation and magnetic separation are generall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00B03B1/00
CPCB03B9/00B03B1/00
Inventor 万丽王立刚孙志健田祎兰曾克文周高云于洋李俊旺叶岳华胡志强陈旭波于志超刘万峰苏建芳
Owner BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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