Process for extracting fine sand from quartz sand raw ore, fine sand and application of fine sand

A quartz sand and fine sand technology, which is applied in the processing and purification process and the fine sand field, can solve the problems that the fine sand and fine sand cannot be separated quickly and reasonably, the fine sand and kaolin are difficult to separate, and the utilization rate of raw materials is not high, so as to avoid Equipment corrosion, easy operation and maintenance, and large output

Pending Publication Date: 2021-08-10
广西新福兴硅科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Neither of these two sand washing processes can achieve the purpose of quickly and reasonably separating fine sand, fine sand, and kaolin
[0007] In the process of realizing the present invention, the inventors found the following problems in the prior art: the use of quartz sand raw ore with a high ultrafine powder content to prepare fine sand, fine sand and kaolin are difficult to separate
In the prior art, the processing technology is complicated, the utilization rate of raw materials is not high, and the separation of fine powder and kaolin with small particle size will produce a large amount of waste gas and waste residue, and the cost is high and the energy consumption is large.

Method used

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  • Process for extracting fine sand from quartz sand raw ore, fine sand and application of fine sand
  • Process for extracting fine sand from quartz sand raw ore, fine sand and application of fine sand
  • Process for extracting fine sand from quartz sand raw ore, fine sand and application of fine sand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The specific operation process of this embodiment can refer to image 3 .

[0042] Use a round sieve to screen out the mud in the raw silica sand of the quartz sand, and put the mud into the coarse sand stockpile;

[0043] Utilize the trommel screen to screen out the coarse sand with a particle size greater than 30 mesh in the ultra-fine quartz sand ore silica sand to obtain coarse material and coarse sand, and put the coarse sand into the coarse sand storage yard;

[0044] Coarse material enters the spiral classifier, the speed of the spiral classifier is set to 4rpm, and the inclination angle of the spiral classifier is set to 15°, the coarse particles flow into the slurry tank, and the fine particles overflow into the scraper machine, which continuously scrapes and washes sand, kaolin The overflow enters the kaolin pool, and the sand and gravel fall into the slurry pool to complete the separation of kaolin and fine sand, and realize the first classification of quart...

Embodiment 2

[0052] Except that the rotational speed of the spiral classifier was adjusted to 10rpm, and the inclination angle of the spiral classifier was adjusted to 15°, other process conditions were the same as in Example 1, and fine sand was prepared.

Embodiment 3

[0054] Except that the rotating speed of the spiral classifier was adjusted to 10rpm, and the inclination angle of the spiral classifier was adjusted to 16°, other process conditions were the same as in Example 1, and the fine sand was prepared.

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Abstract

The invention belongs to the technical field of quartz sand production, and particularly relates to a machining and purifying process for extracting float fine sand from quartz sand raw ore with high superfine powder content. The problems that the machining technology is complex, the raw material utilization rate is low, the cost is high, and the energy consumption is large in the prior art are solved. The quartz sand ore with high superfine powder content is used as a raw material, and the above technical problem is solved through the steps of primary grading and the like, wherein kaolin and slag slurry in the quartz sand raw ore are separated through a spiral classifier and a scraper machine in sequence. A pure physical machining process is adopted, acid leaching is not needed, hydrogen fluoride introduction is not needed, a chemical reaction process is avoided, the process belongs to a simple deep machining technology, corrosion to equipment is avoided, and pollution to the environment is avoided; and the process has the advantages of being simple in process, convenient to operate and maintain, large in yield, high in efficiency and low in energy consumption, the obtained product meets the quality requirement of a siliceous raw material for high-quality float glass, and the yield of the fine sand reaches 60%.

Description

technical field [0001] The invention belongs to the technical field of quartz sand production, and more specifically relates to a processing and purification process for extracting float concentrate from quartz sand raw ore with high ultrafine powder content, the concentrate and its application. Background technique [0002] Quartz sand, also known as silica sand, is a kind of non-metallic mineral raw material. The main chemical composition of quartz sand is SiO 2 , with hard, wear-resistant, fire-resistant, acid-resistant properties, widely used in ceramics, metallurgy, construction, aerospace, chips and other traditional industries and high-tech fields. In industry, quartz sand is often divided into: ordinary quartz sand, refined quartz sand, high-purity quartz sand, fused silica sand and silicon micropowder. [0003] Quartz sand is widely used in the glass production process. Generally, the preparation method of quartz sand is to select quartz placer raw materials with...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B03B7/00B03B9/00C01B33/12
CPCB03B7/00B03B9/00C01B33/12
Inventor黄海陈齐平林天俊
Owner广西新福兴硅科技有限公司