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Andalusite ore strong magnetic - heavy media separation technique

A process method and technology of andalusite, applied in the field of ore production process, can solve the problems of high cost, low recovery rate, low yield and the like, and achieve the effects of low cost, less environmental pollution and improved grade

Inactive Publication Date: 2008-03-05
陶家荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Weaknesses of these processes are low recovery, low yield and high cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Andalusite ore strong magnetic-dense medium beneficiation process:

[0019] The first step of crushing: crush the andalusite ore until most of the andalusite has been dissociated from the andalusite ore, and the ore particle size is less than 8 mm;

[0020] The second step of magnetic separation: the crushed ore is removed by a strong magnetic separator to remove most of the weak magnetic gangue minerals such as biotite;

[0021] The third step of ore washing: the ore after magnetic separation is washed through the ore washing screen or other ore washing equipment to remove the part of the slime less than 0.5 mm;

[0022] The fourth step of beneficiation: ferrosilicon powder and water are mixed in a weight ratio of 2:1 to make a dense medium, and the ore after washing is mixed with the heavy medium, and is fed into the dense medium cyclone under a certain pressure for separation, and the ore is divided into Light products and heavy products, the light products become t...

Embodiment 2

[0024] Andalusite ore strong magnetic-dense medium beneficiation process:

[0025] The first step of crushing: crushing the andalusite ore until most of the andalusite has been dissociated from the andalusite ore, and the ore particle size is less than 5 mm;

[0026] The second step of magnetic separation: the crushed ore is removed by a strong magnetic separator to remove most of the weak magnetic gangue minerals such as biotite;

[0027] The third step of ore washing: the ore after magnetic separation is washed through the ore washing screen or other ore washing equipment to remove the part of the slime less than 0.5 mm;

[0028] The fourth step of beneficiation: ferrosilicon powder and water are mixed in a weight ratio of 4:1 to make a dense medium, and the ore after washing is mixed with the heavy medium, and is fed into the dense medium cyclone under a certain pressure for separation, and the ore is divided into Light products and heavy products, the light products becom...

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PUM

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Abstract

The present invention relates to ore producing process, and is especially one andalusite ore separating strong magnetic-heavy medium process. The process includes the following steps: 1. crushing andalusite ore to dissociate most of the andalusite; 2. magnetically separating in a strong magnetic separator to eliminate most of biotite and other weak magnetic gangue minerals; 3. beneficiating to eliminate slime; and 4. heavy medium separating including mixing beneficiated ore with heavy medium, separating in a heavy medium cyclone with 0.05-0.20 MPa pressure applied into light product and heavy product, sieving the light product to eliminate the medium and to obtain tailing, and sieving the heavy product to eliminate the medium and to obtain concentrate. The process without a grinding step is simple and reasonable, and has high concentrate yield, low cost and environment friendship.

Description

Technical field: [0001] The invention relates to an ore production process, especially an andalusite beneficiation process. Background technique: [0002] Andalusite is a high-alumina mineral, which can be used as high-grade refractory materials, silicon-aluminum alloys, aluminum-silicon alloys, alumina, etc. The content of andalusite in the raw ore of andalusite is generally 10% to 30%, and it needs to be processed before it can be used. At present, the domestic andalusite beneficiation process mainly includes crushing-grinding-strong magnetic-shaker strong magnetic, crushing-grinding-strong magnetic-flotation-strong magnetic, crushing-strong magnetic-jigging-strong magnetic, etc. The weaknesses of these processes are low recovery, low yield, and high cost. Invention content: [0003] The purpose of the present invention is to overcome the above-mentioned disadvantages and provide a strong magnetic-dense medium beneficiation process for andalusite ore. The process is si...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03B5/32B03B1/00B03C1/02
Inventor 陶家荣
Owner 陶家荣
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