Color-magnetic separation combined sorting method for high-purity quartz sand produced through quartzite

A high-purity quartz sand and quartzite technology, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of large equipment investment, high production cost, hidden dangers of environmental protection, etc., and achieve no tailings discharge and operation. The effect of good environment and wide application prospects

Active Publication Date: 2016-10-12
赣州金环磁选科技装备股份有限公司
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Problems solved by technology

Quartz sand itself is a cheap resource, and the processing cost is limited. Traditional purification methods such as scrubbing, acid leaching, and flotation often need to add chemicals to the purification process, which not only has high production costs, but also has hid

Method used

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Example Embodiment

[0020] The present invention will be further described in detail below in conjunction with the embodiments.

[0021] A combined color-magnetic separation method for producing high-purity quartz sand from quartzite. The specific steps are as follows:

[0022] A ,broken - Screening: crush the raw ore of quartzite lump ore through a jaw crusher and a vertical sander to 1.5-2.5cm Lumps, using a linear vibrating screen to control the particle size of the material, -1.5cm Is the granularity of qualified products, +2.5cm Return the ore to the vertical sander for re-crushing;

[0023] B , Washing: The crushed ore is fed into a cylindrical rotary screen or ore washing machine to wash the ore, and the clay and impurities covering the surface of the ore are washed away, so that the ore is exposed to the true color and lumps are obtained;

[0024] C , Color separation: The cleaned lump ore is sent to the color separator through a vibrating feeder for rough separation, and three product...

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Abstract

The invention discloses a color-magnetic separation combined sorting method for high-purity quartz sand produced through quartzite. The method comprises the steps of adopting a crushing-ore washing technology to crush quartzite ore into 1.5-to-2.5 cm blocks, and carrying out ore washing through adopting a cylindrical rotating screen or a linear vibration screen; carrying out roughing and purification on the washed ore through utilizing a color sorter; after parts of a high-quality raw material are selected, carrying out ore grinding, desliming and classification; controlling the particle size of the material at 20 to 140 meshes, and carrying out secondary deironing purification on the part of material through utilizing a vertical ring pulsating high gradient magnetic separator; and after concentrating an obtained product, stacking the product, and carrying out natural dehydration to obtain the high-purity quartz sand. According to the method, adopted technologies belong to physical beneficiation, any chemical substance does not need to be added, and the method is safe and efficient to operate, good in working environment and free of tailing discharge; environmental pollution is avoided; and the method has wide application prospect in high-purity quartz sand manufacturing under the situation that high-quality ore resources are exhausted day by day.

Description

technical field [0001] The invention relates to a production process of quartz sand, in particular to a color-magnetic separation combined separation method for producing high-purity quartz sand from quartz rock. Background technique [0002] Due to its good thermal stability, light transmittance, high temperature resistance and corrosion resistance, the application field of quartz sand has gradually extended from glass, casting, ceramics and refractory materials, metallurgy and plastic industries to photovoltaic, aviation, electronics and other fields. The quality requirements of quartz sand in these fields are getting higher and higher, but good quartz ore resources such as crystal and vein quartz are gradually decreasing. How to use advanced processing technology to process and purify ordinary quartz rock is very important. Quartz sand itself is a cheap resource, and the processing cost is limited. Traditional purification methods such as scrubbing, acid leaching, and flo...

Claims

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Application Information

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IPC IPC(8): B03B7/00
CPCB03B7/00
Inventor 陈剑陈荣饶宇欢许金越危雄曾招科
Owner 赣州金环磁选科技装备股份有限公司
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