Method for recovering fine-grained wolframite by applying superconducting magnetic separation

Abstract

The invention discloses a method for recovering fine-grained wolframite by applying superconducting magnetic separation. The method aims to solve the technical problems that in the prior art, the recovery rate of the fine-grained wolframite is low through traditional shaking table reselection, so that great economic loss and resource waste are formed, a large amount of reagents are needed in flotation, and environmental pollution is prone to being caused. The method comprises the following steps that ores containing the fine-grained wolframite are used as raw materials, firstly, the raw materials are subjected to centrifugal reselection, minerals with small specific gravity in the raw materials are removed, the fine-grained wolframite is pre-enriched, and reselected concentrates are obtained; and then superconducting magnetic separation is carried out on the reselected concentrates by using a superconducting magnetic separator, so that fine-grained wolframite concentrates are obtained.According to the method, the process of gravity separation-superconducting magnetic separation is used in a breakthrough mode, so that the sorting precision and efficiency are greatly improved, meanwhile, any reagent does not need to be added, the process is energy-saving and environment-friendly, the resource recycling rate is high, and the high-efficiency recycling of the wolframite resources is realized.

Description

technical field [0001] The invention belongs to the technical field of mineral separation, in particular to a method for recovering fine-grain wolframite by using superconducting magnetic separation, specifically a process of centrifugal gravity pre-selection and superconducting magnetic separator selection. Background technique [0002] Wolframite is the main ore for extracting tungsten. It is also called wolframite. Because it contains different proportions of iron tungstate and manganese tungstate, if the iron content is higher, it is called wolframite. , containing more manganese is called tungsten ore. Wolframite is brown to black with a metallic or semi-metallic luster. [0003] Wolframite is currently the most important tungsten ore mineral, and its use is mainly for the production of various deep-processed products of tungsten; Wolframite is widely used, but with the mining of this mineral resource for many years, wolframite resources are also very close to exhausti...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a method for recovering fine-grained wolframite by superconducting magnetic separation, which aims at solving the problem of fine-grained wolframite. Shaking table gravity separation has a low recovery rate of fine-grained wolframite, which is likely to cause a large amount of tungsten resource loss, resulting in huge economic losses and waste of resources, reducing the utilization rate of tungsten resources, and flotation requires the use of a large amount of chemicals. It is easy to cause technical problems of environmental pollution and equipment corrosion; this method greatly improves the sorting accuracy and efficiency through the breakthrough use of gravity-superconducting magnetic separation process, and the sorting index is good and stable, reducing production costs; at the same time There is no need to add any chemicals, the process is energy-saving and environmentally friendly, realizing comprehensive ecological benefits, and the resource recycling rate is high, realizing the efficient recycling of wolframite resources