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Multi-metal ore beneficiation technology

A polymetallic and ore technology, applied in the mining field, can solve the problems that the field operating conditions are difficult to control in the optimal range, the process adaptability is poor, and the process is complicated, and achieves the effects of easy operation, low production cost and simple steps.

Inactive Publication Date: 2013-09-18
BAIYIN NONFERROUS GROUP
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Problems solved by technology

At present, the beneficiation process of polymetallic ores containing Cu, Pb, Zn, and S in China and the world is relatively complicated, and there are many types of chemicals used, mostly more than a dozen, and the process is complicated and the adaptability of the process is poor. It is difficult to control the operating conditions in the optimal range, etc.

Method used

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Embodiment Construction

[0024] The polymetallic ore sorting process of the present invention is to complete the polymetallic ore sorting through the following steps:

[0025] 1. One-time grinding

[0026] The polymetallic ore with a qualified particle size of less than 15mm is fed into the first ball mill through a belt, and 2-2 kg / t of lime is added at the same time. %—7%, the S content is 10%—20%, and the processing capacity of the ball mill is 40—55t / h. The ore discharged after grinding by the ball mill is classified by the classifier, and the ore that reaches the standard enters the cyclone classification, and the unqualified ore is classified. The ore returning to sand and the new feeding ore are put into a grinding process together;

[0027] 2. Secondary grinding

[0028] The cyclone grit that entered the cyclone classification in step 1 and did not meet the classification standard is sent to the second ball mill for grinding, and the cyclone that meets the classification standard enters the ...

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Abstract

The invention discloses multi-metal ore beneficiation technology. The technology comprises the processes of primary ore grinding, secondary ore grinding, mixing rough primary flotation, mixing rough secondary flotation, primary mixing flotation, secondary mixing flotation, tailings sulphur selection operation, desulfuration operation and dehydration and reagent removal; and Cu, Pb, Zn, S, Au and Ag contained in ore are comprehensively recycled. The steps of the multi-metal ore beneficiation technology are simple, and a small variety of medicament is used, and only 5 types of medicament are used currently; and particularly for copper and lead-zinc separation operation, relatively high index is achieved by using only two types of medicament. Compared with other multi-metal ore beneficiation technology, the multi-metal ore beneficiation technology disclosed by the invention has characteristics of stable field technical conditions, high flow adaptability, low production cost and relatively low environmental pollution while ensuring that highly toxic medicament is not used in the copper and lead-zinc separation operation, a large part of backwater can be recycled and the like, and the multi-metal ore beneficiation technology is easy in operation.

Description

technical field [0001] The invention belongs to the field of mining, and particularly relates to a beneficiation process for polymetallic ores containing Cu, Pb, Zn and S. technical background [0002] The ore of polymetallic ore contains copper, lead, zinc, gold, silver, sulfur and other valuable elements, and has a very considerable mining and utilization value. The ore properties of polymetallic ore are complex and changeable, and the useful minerals copper, lead, zinc and pyrite are closely related to each other. At present, the beneficiation process of polymetallic ores containing Cu, Pb, Zn, and S in China and the world is relatively complex, and there are many types of chemicals used, most of which are more than a dozen, and the process is complex and the process adaptability is poor. Operating conditions are difficult to control in the optimal range and so on. [0003] Since the establishment of Xiaotieshan polymetallic mineral processing system in 1980, the grind...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00B03B1/00
Inventor 王勇李娟赵天岩张文乾李轶才杨爱民穆晓辉李永祥赵亚平姜文波景世妍
Owner BAIYIN NONFERROUS GROUP
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