Method for increasing molybdenum ore recovery using fine-sweeping

A recovery rate, fine sweeping technology, applied in flotation, solid separation and other directions, can solve the problems of worsening tailings cycle in sweeping, not much improvement in comprehensive recovery rate, and large enrichment of fine-grained tailings in fine sweeping.

Inactive Publication Date: 2009-03-18
CHINA MOLYBDENUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The original fine sweeping tailings are returned to the rough sweeping mixing tank for recycling, so that the tailings can be reused. However, due to the large enrichment of the fine-grained tailings in th

Method used

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  • Method for increasing molybdenum ore recovery using fine-sweeping
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  • Method for increasing molybdenum ore recovery using fine-sweeping

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Embodiment Construction

[0010] Embodiments of the present invention are further described in conjunction with the accompanying drawings.

[0011] In this embodiment, on the basis of the existing molybdenum beneficiation fine sweeping section process, a group of flotation columns with an effective volume of 30 cubic meters is added on the basis of four fine sweeping separations, so that the original fine sweeping tailings can directly enter the new stage. The flotation column is added to improve the recovery rate of ore dressing and increase the output of molybdenum concentrate under the premise of reducing the final tailings grade.

[0012] As shown in Figure 3: it includes five sorting operations: fine sweep I, fine sweep II, fine sweep, fine sweep III, and fine sweep IV. Among them, the fine sweep I foam, sweep fine foam, coarse concentrate, and fine II tailings are classified by the 2# cyclone, and the overflow is used as the ore feed for the fine sweep I, while the fine sweep I tailings enter the...

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Abstract

The invention discloses a method used for improving the recovery of the molybdenum processing by fine sweeping section; the method comprises five selection operations such as fine sweeping I, II, III, IV and V; wherein, fine sweeping I foam and fine sweeping foam are returned to a slurry pond 2 together; fine sweeping II gangue is classified by a hydrocyclone and the overflow thereof is used as fine I given ore; fine sweeping I gangue enters a fine sweeping II flotation machine; the fine sweeping II flotation machine foam enters fine sweeping; fine sweeping II gangue enters a fine sweeping III flotation machine and is classified; the fine sweeping III gangue is re-classified by fine sweeping IV and used as final fine sweeping gangue; the foam thereof is re-returned to the fine sweeping III flotation machine to be classified; after the selection operation of the fine sweeping IV, a floatation column is provided so as to lead the fine sweeping IV gangue to directly enter a newly increased flotation column (fine sweeping V) and to be classified; subsequently, the gangue is directly used as final fine sweeping gangue tail and the foam as well as the fine sweeping III foam and fine sweeping gangue is returned to the fine sweeping II flotation machine and re-classified. The method leads the original fine gangue to be re-classified, reduces the grade of the final gangue and improves the recovery at the same time, and increases the yield of molybdenum concentrates.

Description

[0001] The invention belongs to the technical field of molybdenum beneficiation recovery rate, and mainly relates to a method for improving the recovery rate of molybdenum beneficiation in fine sweeping section. Background technique [0002] The known technical process of the fine sweeping section of molybdenum beneficiation includes: as shown in Figure 1, there are five sorting operations of fine sweep I, fine sweep II, fine sweep, fine sweep III, and fine sweep IV. Among them, the fine sweep I foam, sweep fine foam, coarse concentrate, and fine II tailings are classified by the 2# cyclone, and the overflow is used as the ore feed for the fine sweep I, while the fine sweep I tailings enter the fine sweep II flotation machine , the fine sweeping II flotation machine foam enters the fine sweeping machine, the fine sweeping II tailings enters the fine sweeping III flotation machine sorting, and so on, the fine sweeping III foam and the fine sweeping tailings return to the fine sw...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/02B03D1/14
Inventor 陈忠典任建国郭金山王运芳宁三性崔红安廉海涛李钟利
Owner CHINA MOLYBDENUM
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