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Washup-flotation process for stacked bauxite

A bauxite and ore washing technology, applied in flotation, solid separation, wet separation, etc., can solve problems such as clogged screens, and achieve the effects of saving water, increasing production capacity and alkali consumption, and reducing cultivated land

Inactive Publication Date: 2006-02-08
SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is: for the ore slime discharged from the existing ore washing process flow, increase the flotation operation, and the ore slime containing a large amount of gibbsite, diaspore and boehmite, Recover the above beneficial minerals through flotation to improve their resource utilization; at the same time, add a dispersant to the ore washing operation to fully disperse the ore slime in the washing water and improve the A / S of the washing concentrate; the particle size of ore washing and flotation is 30mm. It can increase the A / S of concentrate washing from 7.75 to above 13.86, and also solve the problem of clogged screen; improve the grade of raw ore entering flotation operation, which is also beneficial to improve the A / S of flotation concentrate

Method used

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  • Washup-flotation process for stacked bauxite
  • Washup-flotation process for stacked bauxite
  • Washup-flotation process for stacked bauxite

Examples

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Embodiment 1

[0034] figure 2 It is a flow chart of embodiment 1 of heaped bauxite washing-flotation process of the present invention. On the basis of not changing the original equipment, the technique of this embodiment includes the following stages:

[0035] Feed the mud-containing bauxite into the drum screen washing machine, and at the same time add the dispersant sodium carbonate or sodium hydroxide into the drum screen washing machine, and wash with water is the first stage;

[0036] After washing, the ore with a particle size greater than or equal to 50mm is hand-selected to obtain the washed concentrate, which specifically includes hand-selected, coarse crushing, ore stockpiling after washing, and fine crushing and screening to obtain qualified bauxite; the ore with a particle size of less than 50mm passes through the tank The ore washing machine is the second stage;

[0037] Through the ore washing of the trough type ore washing machine, the ore with a particle size greater than...

Embodiment 2

[0043] image 3 It is the flow chart of the second embodiment of the stacked bauxite washing-flotation process of the present invention.

[0044] This embodiment is set for the grade measurement results of ores with a particle size greater than 50mm and below. For ores with a particle size greater than or equal to 50mm, the A / S is up to 13.86 and for ores with a particle size of 30-50mm, the A / S is as high as 15 or more, while 10- The A / S of 30mm-sized ore dropped rapidly to 6.58; the A / S of 10mm to 1mm-sized ore dropped to 3.89.

[0045] For this reason, this embodiment proposes that the particle size of ore washing and flotation should be 30 mm. That is to adjust the screen of the trough washing machine to 30mm. The technique of the present embodiment comprises the following stages:

[0046] Feed the mud-containing bauxite into the drum screen washing machine, and at the same time add the dispersant sodium carbonate or sodium hydroxide into the drum screen washing machine...

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PUM

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Abstract

The invention discloses a mill run technology of bauxite, especially relates to a ore wash-floatation technology of cumulate bauxite. For cumulate bauxite, changing the single ore wash technology into ore wash and appending dispersant, and floatation to the gangue. The invention can increase the quality of wash-concentrate and decrease the mud ratio of wash-concentrate; by floatation, a number of gibbsite, diasporite, bodhmite can be reclaimed, achieve the intention of using bauxite.

Description

Technical field [0001] The invention relates to an ore washing process of bauxite, in particular to an ore washing-flotation process of stacked bauxite. Background technique [0002] Accumulative bauxite is a unique type of bauxite mineralization in my country. Mainly distributed in Guangxi, Yunnan, Sichuan and Guizhou provinces. The accurate definition of accumulative bauxite is: primary layered bauxite, deposit rock series, long-term weathering, denudation and other geological forces, both physical and chemical effects, loss of surrounding rocks on the roof and floor of the deposit, bauxite It has strong weathering resistance and accumulates in situ, but it is also mixed in the soil by weathering and leaching into lumps and particle sizes. [0003] Due to the misleading of "more than 1mm is ore, and less than 1mm is mud", the current ore washing process adopted by accumulated bauxite has caused a large number of gibbsite, diaspore and boehmite less than 1mm to be washed ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00B03D1/00
Inventor 李耀吾栾书伟
Owner SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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