A method to effectively improve the efficiency of black tungsten beneficiation

Abstract

The invention discloses a method for effectively improving the mineral processing efficiency of wolframite. The method comprises the following steps: after raw ores of the wolframite are crushed, the wolframine and impurities are fully separated through the flow of multistage grinding-size grading-strong magnetic separation; and the wolframite is enriched in quantity by a high gradient magnetic separator before being floated, so that the separation of the wolframite and the impurities is realized, tailings of the wolframite is discarded in quantity before the wolframite is floated, and efficiency of the technological process is further improved. The method has the following main characteristics that (1) the flow of multistage grinding and size grading creates conditions for the strong magnetic enrichment and the tailing discarding operation; (2) the mineral processing process is improved, and the flotation feeding index is enhanced; (3) the flotation reagent dosage and the production cost are reduced, and the efficiency of the whole technological process is improved; and (4) the full dissociation and the beforehand tailing discarding of minerals are realized through the novel process, so that the flotation flow is simplified, the efficiency of the whole technological process and the wolframite mineral processing index are enhanced, and the comprehensive utilization ratio of resources is improved.

Description

technical field [0001] The invention relates to a wolframite beneficiation method, in particular to a method for effectively improving wolframite beneficiation efficiency. Background technique [0002] Wolframite is generally pre-enriched by gravity separation, that is: wolframite is mainly harvested by jig early, shaker tailing, multi-stage jigging, multi-stage shaker, middle ore regrinding and "multi-stage flotation". The beneficiation method is the core technology of wolframite beneficiation in recent decades. [0003] With the increasing amount of wolframite mining, high-grade wolframite is increasingly depleted, while low-grade wolframite is in a state of multi-metal coexistence, which requires higher processing technology. The main problems of the traditional flotation method are: (1) The equipment used is simple in structure and small in processing capacity. If it is used in large quantities, it will be difficult to manage, resulting in low production efficiency; (2)...

AI Technical Summary

Problems solved by technology

The main problems of the traditional flotation method are: (1) The equipment used is simple in structure and small in processing capacity. If it is used in large quantities, it will be difficult to manage, resulting in low production efficiency; (2) The traditional flotation method completely relies on flotation and sorting operations , the flotation process is long and complicated, resulting in a large amount of chemicals, high production costs, and difficult management; (3) With the increasing amount of wolframite mining, high-grade wolframite is increasingly depleted, and the grade of wolframite entering flotation Affected by mineral composition, the final wolfram concentrate index is greatly affected by ore supply fluctuations, and production is unstable

[0004] Due to the above disadvantages, the current black tungsten beneficiation and separation cost is high, the management is complicated, the efficiency is low, and the production scale is generally small, which limits the development and utilization of black tungsten resources.

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