Lean hematite technology combining dressing-fine screening and shaking table gravity separation

A technology of hematite and fine sieve, applied in the direction of solid separation, separation of solids from solids with air flow, chemical instruments and methods, etc., can solve the problems of high environmental protection requirements

Active Publication Date: 2010-12-29
ANSTEEL GRP MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process cannot be used in concentrators that have high environmental protection requirements for the production of concentrators, do not allow the use of flotation technology, and have a small scale of construction.

Method used

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  • Lean hematite technology combining dressing-fine screening and shaking table gravity separation
  • Lean hematite technology combining dressing-fine screening and shaking table gravity separation

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Embodiment Construction

[0029] The specific implementation manner of the present invention will be further described below in conjunction with the examples given in the accompanying drawings.

[0030] Such as figure 1 As shown, a kind of lean hematite ore beneficiation fine screen-shaking table gravity separation process of the present invention is characterized in that the grinding product is inspected and graded by using the high-frequency vibrating screen fine screen 6, the roughing spiral flow tank 13, the selection spiral flow The trough, the sweeping spiral flow trough 22, the roughing shaker 26, and the selection shaker 30 are combined into a full-gravity separation beneficiation process, and the specific steps are as follows:

[0031] (1) Depleted hematite ore 1 carries out one-stage grinding operation 2;

[0032] (2) The product of one-stage grinding operation 2 enters classification operation 3, the separated sand-returning product 4 returns to one-stage grinding operation 2, and the separ...

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Abstract

The invention relates to a lean hematite technology combining dressing-fine screening and shaking table gravity separation. The technology is characterized in that a high frequency vibrating fine screen is used to check and grade the grinding product and the gravity separation device and technology are adopted to perform the upgrading production flow. The technology mainly comprises the following steps: the high frequency vibrating fine screen is used to check and grade the grinding product, and a first-stage roughing spiral launder, a first-stage concentration spiral launder, a second-stage concentration spiral launder, a scavenging spiral launder, a roughing shaking table and a concentration shaking table are combined to complete the entire gravity separation process. The high frequency vibrating fine screen with (0.1-0.15)*(0.1-0.15)mm of sieve pores which is a metal wire mesh or polyurethane mesh, is used for screening; the above spiral launders are used to concentrate 30-100 microns of hematite and obtain hematite concentrate with coarse particles; and 0-30 microns of fine hematite particles which are separated by the first-stage roughing fine-grain slimmer spiral launder and the first-stage concentration fine-grain slimmer spiral launder are used to prepare hematite concentrate with fine particles. The technology is suitable for the hematite concentrator with small production scale.

Description

technical field [0001] The invention relates to the technical field of iron ore beneficiation, in particular to a method of inspecting and grading grinding products by using a high-frequency vibrating fine screen, and all using gravity separation equipment for separation of lean hematite ore beneficiation fine sieve-shaker gravity separation craft. Background technique [0002] At present, in the beneficiation technology of fine-grained lean hematite ore at home and abroad, the beneficiation process of lean hematite ore of Ansteel Mining Company in my country is the most representative, and the beneficiation process of lean hematite ore adopted by it is stage grinding, rotary Coarse and finer classification of flow device, gravity separation-magnetic separation-anion reverse flotation process, use gravity separation, flotation technology and equipment to select the final concentrate with a concentrate grade of 67.5%, and use medium magnetic, strong magnetic and high gradient ...

Claims

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Application Information

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IPC IPC(8): B07B9/00
Inventor 韦锦华孙雷达
Owner ANSTEEL GRP MINING CO LTD
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