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Step branched ore milling and milling and dressing circular new technology

A new technology, grinding technology, applied in the field of step-by-step branch grinding and grinding cycle new technology, to achieve the effect of improving the grinding environment, good recovery, and increased tin recovery rate

Inactive Publication Date: 2007-04-11
广西华锡集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to propose a new ore grinding process for raw ore with complex ore properties (multi-element, multi-component, multiple embedded structures and extremely uneven embedded particle size minerals) that are prone to over-crushing during the grinding process

Method used

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  • Step branched ore milling and milling and dressing circular new technology
  • Step branched ore milling and milling and dressing circular new technology

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Embodiment Construction

[0029] Figure 1 has been described in the above background technology, here is a brief description:

[0030] After the raw ore enters the screening system, it is screened immediately to separate the products on the upper sieve. The second-stage mill processes the jigging first, second, and third-room concentrates and the tailings in the floating bed. The spiral classifier and the second-stage mill are closed. Its overflow enters the full flotation of sulfide ore.

[0031] Shown in Fig. 2 is that the present invention improves the ore grinding production technique of Fig. 1:

[0032] The raw ore is screened into three products. The material larger than 4mm enters the raw ore and grinds to a particle size of less than 3mm, accounting for 70%. Then enter the stage floating system for sorting. The raw ore mill here starts the first sub-step, and the jigging first room, second room, third room and tailings enter the 8# mill, 3# mill, and 4# mill for the second step. Three-branch ...

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Abstract

The present invention relates to the non-ferrous ore milling and separating process. The process includes sieving the crude ore into three size fractions, including 4 mm over fraction to the ore mill for milling to 3 mm below size, 2-4 mm fraction to the jigger for enriching and 2 mm below fraction to the screw chute system for enriching and to the table floating system for separating; milling crude ore in the crude ore mill; enriching in the jigger; grading after milling; separating in the table floating system and the screw chute system to obtain ore concentrate; and milling the concentrated tailings to recover target metals before draining ore slag. The present invention has sufficient milling and high metal recovering rate.

Description

technical field [0001] The invention relates to grinding and sorting technology of one or more metal minerals, especially a new technology for preventing minerals with multiple components from being over-crushed during the grinding process. Background technique [0002] Grinding is the most important link in the beneficiation process. Due to the different dissociation degrees of monomers of different minerals, the particle size states required for flotation separation and gravity separation are different, so the requirements for grinding particle size are also different. At present, there are still It is to grind the raw ore to the particle size required by the sorting operation at one time, or to grind the raw ore to 3-5 mm first and then to the required qualified size after the second stage of grinding in consideration of factors such as grinding ratio, energy consumption, material consumption, and particle size. Particle size, which is very common in chemical, metal and n...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03B1/00
Inventor 吴伯增陈建明王熙黄承波王万忠余忠保
Owner 广西华锡集团股份有限公司
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