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Method for preparing refined quartz sand by washing

A technology of quartz sand and quartz stone, which is applied in the field of washing and producing refined quartz sand, which can solve the problems of many impurities, time-consuming and material-consuming, etc., and achieve the effects of high whiteness, wide application range and saving artificial raw materials

Inactive Publication Date: 2012-12-19
连云港桃盛熔融石英有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention proposes a method for producing refined quartz sand by water washing, which solves the problems of many impurities, time-consuming and material-consuming in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, a kind of method for washing and producing refined quartz sand, comprising

[0026] S1. Processing: process the quartz stone ore into coarsely crushed stone with a length of 5cm through a stone crushing machine;

[0027] S2. Sand granulation: crush coarsely crushed stones into sand grains, add water continuously during rolling, the ratio of water to sand grains (weight percentage) = 2:1;

[0028] S3. Sedimentation: water flows into the sedimentation tank with sand, and the sedimentation time is 7 hours; when the sand is completely settled, the water on the surface of the sand is drained away;

[0029] S4. Baking: Transport the grit into the baking room for baking. The baking time is 2 hours to form dry sand, take it out, and cool to room temperature;

[0030] S5. Sieving: Screening with a vibrating sieve to obtain finished fine sand.

[0031] Further, the processing in step S1 further includes:

[0032] S11. The processed stone in step S1 is evenly sent...

Embodiment 2

[0038] Example 2, a method for washing and producing refined quartz sand, the steps of which are mostly the same as in Example 1, the difference is that: step S1 is: the quartz ore is processed into a coarsely crushed quartz sand with a length of 25 cm through a stone crushing machine. stone;

[0039] Step S3. Sedimentation: the water carries the sand into the sedimentation tank, and the sedimentation time is 4 hours; when the sand is completely settled, the water on the surface of the sand is drained away;

[0040] S4. Baking: Transport the grit to the baking room for baking. The baking time is 3 hours to form dry sand. Take it out and cool it to room temperature.

Embodiment 3

[0041] Example 3, a method for washing and producing refined quartz sand, the steps of which are mostly the same as those in Example 1, the difference is that: step S1 is: process the quartz stone ore into coarsely crushed quartz sand with a length of 50 cm through a stone knocking machine stone;

[0042] Step S3. Sedimentation: the water carries the sand into the sedimentation tank, and the sedimentation time is 8 hours; when the sand is completely settled, the water on the surface of the sand is drained away;

[0043] S4. Baking: Transport the grit to the baking room for baking. The baking time is 2.5 hours to form dry sand. Take it out and cool it to room temperature.

[0044] In general, the process of producing quartz sand by water method is roughly as follows: the quartz ore is processed into smaller stones by a stone crushing machine, and then the stones are rolled into sand by stone rollers, and water is continuously added during rolling. Bring the sand into the sedim...

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Abstract

The invention provides a method for preparing refined quartz sand by washing; and the method comprises the following steps that (1) a processing step is carried out: a quartz stone ore material is processed by a stone breaking machine into coarse broken stone with the lengths being 3cm to 50cm; (2) stone is rolled into sand: the coarse broken stone is rolled into sand, water is added in continuously when the stone is rolled, and the ratio (weight percentage) of the water to the sand is equal to 2:1; (3) a sedimentation step is carried out: the water flows into a sedimentation tank together with the sand, and the sedimentation time is more than four hours; after the sand is fully settled, the water on the surface of the settled sand flows away; (4) a baking step is carried out: the settled sand is moved into a bakery to be baked, the baking time is 2 hours to 3 hours, dry sand is formed, taken out and cooled down to room temperature; and (5) a screening step is carried out: a vibration sieve is used for screening, and fine sand finished products are obtained. The quartz sand which is prepared through the method for preparing refined quartz sand by washing is not graded, and due to the adoption of a closed-loop circulating system for processing, manpower and raw materials are saved, the white content is high, no impurity exists, and the iron content is low.

Description

technical field [0001] The invention relates to the field of quartz sand production, in particular to a method for producing refined quartz sand by water washing. Background technique [0002] Quartz sand is a milky white or colorless translucent non-metallic mineral with a hardness of 7. It is a hard, wear-resistant and chemically stable silicate mineral, and its main mineral component is SiO2. Quartz sand is an important industrial mineral raw material, non-chemical dangerous goods, widely used in glass, casting, ceramics and refractory materials, ferrosilicon smelting, metallurgical flux, metallurgy, construction, chemical industry, plastics, rubber, abrasives and other industries. In nature, it exists as quartz sandstone, quartzite and vein quartz. Quartz sandstone is a consolidated clastic rock with a quartz clast content of more than 95%. It comes from various igneous rocks, sedimentary rocks and metamorphic rocks. It has less heavy minerals and associated minerals ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/12
Inventor 吕学平孙鹏
Owner 连云港桃盛熔融石英有限公司
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