Separation method for natural copper ore with high mud content

A high-mud, natural technology, applied in chemical instruments and methods, flotation, solid separation, etc., can solve the problems of low recovery rate and low grade of copper concentrate, and achieve the effect of improving recovery rate

Active Publication Date: 2015-07-08
麻阳华森矿业有限责任公司
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a high-mud natural copper ore separation method with high recovery rate and high copper concentrate grade for the defects of low recovery rate and low copper concentrate grade in the copper ore treatment in the prior art. choose method

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  • Separation method for natural copper ore with high mud content
  • Separation method for natural copper ore with high mud content

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Embodiment Construction

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0025] like figure 2 Shown, a kind of highly muddy natural copper ore sorting method comprises the following steps:

[0026] A. The raw ore of natural copper ore is roughly crushed by the jaw crusher, and then screened in two stages according to the set high particle size and low particle size. The high particle size value and the low particle size value are the standards for separating ores, which can be determined according to the ore mud content, crushing rate and other indicators. This embodiment is mainly determined for the actual situation of the natural copper mine in Jiuquwan Mine. The diameter height value is 16mm, and the described particle diameter minimum value is 6mm.

[0027] The two-stage screening ado...

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Abstract

The invention discloses a separation method for natural copper ore with high mud content. The method includes the following steps: A, conducting two-stage sieving after raw ores are ground, wherein the ground raw ores with a particle diameter bigger than the particle diameter high value adopt step B, the ground raw ores with a particle diameter smaller than the particle diameter low value adopt step D, and the ground raw ores with a particle diameter between the particle diameter high value and the particle diameter low value adopt step C; B, selecting waste ore by hands, and repeating step A and fine grinding the raw ores; C, grinding the ores, classifying slurry and ore sand in a spiral mode, slurry flotation and the ore sand are returned to be ground, flotation selection comprises first grade roughing and third grade scavenging, ore concentrates after flotation are sent to be processed by step E, tailings after flotation are sent to tailing storage; D, obtaining the slurry and riffling through spiral classification, the riffling is sent back to step C, floating the riffling obtained from concentrated slurry, the flotation selection comprises the first grade roughing, second grade fine selection and the third grade scavenging, copper ores after flotation are sent to be processed by step E, and final tailings after the flotation are sent to the tailing storage; E, concentrating ore concentrates to obtain copper concentrates after pressing and filtering. The separation method for the natural copper ore with the high mud content is high in recovery rate and copper concentrate grade.

Description

technical field [0001] The invention belongs to the technical field of copper ore separation and relates to a method for separation of natural copper ore with high mud content. Background technique [0002] Jiuquwan Mine is currently one of only two or three copper-bearing sandstone-type sedimentary copper deposits in the world that are deposited in the inland river-lake delta facies in a single state. It is a natural copper ore. Red argillaceous siltstone, low hardness, easy to break into mud when soaked in water, poor stability, and the mud content of the ore produced can reach as high as 15-20%. like figure 1 As shown, the current conventional flotation process adopts two stages of closed-circuit crushing, one stage of closed-circuit grinding, and one stage of flotation. The flotation index is not high, the actual recovery rate can only reach 85%, and the concentrate grade can only reach 25%. The existing beneficiation process is: the natural copper ore is first crushed...

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Application Information

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IPC IPC(8): B03B7/00B03D1/00B07B1/28
Inventor 郑能欢姚齐林卢金华
Owner 麻阳华森矿业有限责任公司
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