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Method for producing quartz crucible by waste high silica glass fiber

A high-silica glass fiber and quartz crucible technology, which is applied in glass forming, glass manufacturing equipment, manufacturing tools, etc., can solve problems such as environmental pollution, waste of resources, and environmental pollution, and achieve reduction of production costs, protection of the environment, and preparation of The effect of simple process

Inactive Publication Date: 2014-06-04
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to statistics, the annual production of high-silica glass fiber mesh cloth in China is 4 million square meters, and the waste high-silica glass fiber produced by the scrapping of high-silica glass fiber products reaches 3 million square meters every year. If the fiber is not handled properly, it will cause great pollution to the environment
It pollutes the environment and wastes resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Step 1: Slurry Preparation

[0016] Firstly, sort the waste high-silica glass fibers from the waste products, remove the plastic and metal objects, and cut them into waste high-silica glass fiber short filaments with a length less than 2 mm;

[0017] Then, put 95% of waste high-silica glass fiber short filaments with a length less than 2 mm by mass fraction, 1% calcium carbonate, 3% kaolin and 1% lactic acid into the ball mill jar, then according to 45ml distilled water / 100 grams of batch material, Then add distilled water to the ball mill jar;

[0018] Finally, put in zirconia balls of the same weight as the batch and mill for 36 hours, pour the slurry out of the ball mill tank, and pass through a 100-mesh standard sieve to obtain the molding slurry;

[0019] The second step: grouting and trimming

[0020] Slowly pour the prepared slurry into the gypsum mold, and constantly vibrate the gypsum mold. When the thickness of the slurry absorbed by the inner wall of the gy...

Embodiment 2

[0024] Step 1: Slurry Preparation

[0025] Firstly, sort the waste high-silica glass fibers from the waste products, remove the plastic and metal objects, and cut them into waste high-silica glass fiber short filaments with a length less than 2 mm;

[0026] Then, put 96.5% of waste high-silica glass fiber short filaments whose length is less than 2 mm by mass fraction, 0.3% calcium carbonate, 2.7% kaolin and 0.5% lactic acid into the ball mill jar, then according to 45ml distilled water / 100 grams of batch material, Then add distilled water to the ball mill jar;

[0027] Finally, put in zirconia balls of the same weight as the batch and mill for 36 hours, pour the slurry out of the ball mill tank, and pass through a 100-mesh standard sieve to obtain the molding slurry;

[0028] The second step: grouting and trimming

[0029] Slowly pour the prepared slurry into the gypsum mold, and constantly vibrate the gypsum mold. When the thickness of the slurry absorbed by the inner wall...

Embodiment 3

[0033] Step 1: Slurry Preparation

[0034] Firstly, sort the waste high-silica glass fibers from the waste products, remove the plastic and metal objects, and cut them into waste high-silica glass fiber short filaments with a length less than 2 mm;

[0035] Then, put 96% of waste high-silica glass fiber short filaments whose length is less than 2 mm by mass fraction, 0.1% calcium carbonate, 3.5% kaolin and 0.4% lactic acid into the ball mill jar, then according to 45ml distilled water / 100 grams of batch material, Then add distilled water to the ball mill jar;

[0036] Finally, put in zirconia balls of the same weight as the batch and mill for 36 hours, pour the slurry out of the ball mill tank, and pass through a 100-mesh standard sieve to obtain the molding slurry;

[0037] The second step: grouting and trimming

[0038] Slowly pour the prepared slurry into the gypsum mold, and constantly vibrate the gypsum mold. When the thickness of the slurry absorbed by the inner wall o...

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Abstract

The invention relates to a method for producing a quartz crucible by waste high silica glass fiber. In the method, the waste high silica glass fiber is taken as main raw material and a slip casting technology is adopted to prepare a quartz crucible green body, and the quartz crucible can be obtained by sintering. The preparation technology is simple and easy as well as low in cost; and the prepared quartz crucible has the heat-resistant temperature of higher than 1400 DEG C and good thermal shock stability. The solid waste is adopted as the raw material, so that the raw material is low in price and rich in source. The method is simple in preparation technology and convenient for industrialized mass production; and the prepared quartz crucible can be widely applied to various fields of glass smelting, glass deep processing, metallurgical industry, electronic industry, chemical industry, aerospace and the like. By using the method, the production cost of quartz glass can be effectively reduced, the environment is protected and waste is turned into wealth, thus the method has obvious economic benefit and environmental protection benefit.

Description

technical field [0001] The invention relates to a method for preparing a quartz crucible, in particular to a method for producing a quartz crucible by utilizing waste high-silica glass fibers. Background technique [0002] Waste high-silica glass fiber is some high-silica glass fiber that cannot be used for re-furnace production during the production process, and a solid waste that is discharged after high-silica glass fiber products are discarded. Due to the SiO in the high silica glass fiber component 2 The content is more than 96%. It is a kind of high temperature resistant inorganic fiber. The long-term use temperature is above 900°C. It has excellent temperature resistance, corrosion resistance, insulation, dielectric and other properties. materials, high-temperature gas and liquid filter materials, heat-resistant, ablation-resistant and wave-transparent materials for aerospace vehicles, etc. At present, there is no scientific and reasonable method for fully recycling...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B20/00C03C6/02
CPCC03B19/066
Inventor 高档妮马建中郭宏伟刘盼李鹏闫松明
Owner SHAANXI UNIV OF SCI & TECH