Method for efficiently preparing ultra-white quartz sand from vein quartz ore

Abstract

The invention discloses a highly-efficient preparation method of ultra-white quartz sand utilizing vein quartz minerals. The highly-efficient preparation method is applied as follows: vein quartz minerals are subjected to crushing, grinding, desliming, grading, desliming and magnetic concentration and undergo grading complete-flow process based on the principle of more crushing and less grinding, and processes including slassifying and delurrying and segmented magnetic separation. The technological process of the highly-efficient preparation method of ultra-white quartz sand utilizing vein quartz minerals has following beneficial effects: iron impurities and fine silt, having impacts on quality of vein quartz, are well processed so that beneficiation effect of the technological process is enhanced; reliability and adaptability for beneficiation of quartz and vein quartz minerals are improved in order to effectively ensure technological quality of vein quartz minerals; ultra-white sand products by production can satisfy the requirement of the market for high-quality quartz sand; and the technological process has advantages including high processing capability and conservation of energy consumption so as to be cost-effective and eco-friendly.

Description

technical field [0001] The invention relates to a method for preparing quartz sand, in particular to a method for efficiently preparing ultra-white quartz sand from vein quartz ore. Background technique [0002] Quartz ore is widely used in glass, casting, ceramics and refractory materials, ferrosilicon smelting, metallurgical flux, metallurgy, construction, chemical industry, plastics, rubber, abrasives, filter materials and other industries. It is an important industrial mineral raw material. [0003] Vein quartz is one of the important components of quartz minerals. The ore body is milky white, off-white, white, oily, dense and massive, with a specific gravity of about 2.65, a melting point above 1700°C, and a hardness greater than 7. It has excellent temperature resistance and resistance Acidic and alkaline, and has the characteristics of poor thermal conductivity, high insulation, low expansion and stable chemical properties. It is an important advanced industrial basi...

AI Technical Summary

Problems solved by technology

As the current natural high-quality quartz sand resources are becoming less and less, at the same time, the quartz sand beneficiation industry is affected by regions and markets, the overall development of the industry is restricted by regions, the industry branches are small, and it is difficult to attract more technology and capital. A lot of social resources are invested, the mineral processing technology of the quartz sand industry is relatively backward, and the relatively simple and extensive quartz elutriation and purification process generally adopted in the industry makes it difficult to guarantee stable and high-quality products.

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