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Method for producing alkali-free glass fiber by taking industrial slag as raw material

A technology of alkali-free glass fiber and raw materials, applied in glass manufacturing equipment, manufacturing tools, etc., can solve the problems of consumption, large processing costs, hidden dangers of environmental pollution, etc., and achieve the effects of reducing environmental pollution, saving raw material costs, and good social benefits

Active Publication Date: 2012-07-25
NEIJIANG HUAYUAN ELECTRONICS MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, in the industrial production of other products, a large amount of silicon-rich (SiO 2 ) Aluminum (Al 2 o 3 ) of slag, for these slag, most domestic production enterprises use it as waste residue for disposal, which requires a large processing fee, and at the same time causes hidden dangers of environmental pollution to a certain extent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] To produce 100kg of alkali-free glass fiber, the amount of raw materials required is: industrial aluminum ore: 59.3kg, of which: SiO 2 ≥58.0%, Al 2 o 3 ≥18.5%, Fe 2 o 3 ≤0.6%, H 2 O≤1%; quicklime: 15.4㎏, of which: CaO≥85.0%, Fe 2 o 3 ≤0.15%, MgO≤3%, H 2 O≤1%; Dolomite: 9.1㎏, of which CaO≥30.0%, Fe 2 o 3 ≤0.15%, MgO≤21.0%, H 2 O≤1%; Colemanite: 8㎏, of which CaO≥27.5%, Fe 2 o 3 ≤0.10%, B 2 o 3 ≥38.0%, SiO 2 ≤6.5%, H 2 O≤1%; leucoporite: 22.7㎏, of which SiO 2 ≥80.0%, Al 2 o 3 ≥10.0%, Fe 2 o 3 ≤0.50%, H 2 O≤1%; Fluorite: 2.3㎏, of which: CaF 2 ≥90.0%, H 2 O≤1%; soda ash: 0.2㎏, of which: Na 2 CO 3 ≥98.0%, H 2 O≤1%; the above percentages are mass percentages.

[0027] Before weighing, the composition content of CaO in quicklime should be detected every day, and the lime ratio should be adjusted according to the content of its composition.

[0028] The production steps are:

[0029] 1. Take and weigh various raw materials according to the ratio; amon...

Embodiment 2

[0041] To produce 100㎏ E-glass fiber, the required amount of each raw material is: industrial aluminum ore: 57.9㎏, of which: SiO 2 ≥58.0%, Al 2 O 3 ≥18.5%, Fe 2 O 3 ≤0.6%, H 2 O≤1%; quicklime: 15.2㎏, of which: CaO≥85.0%, Fe 2 O 3 ≤0.15%, MgO≤3%, H 2 O≤1%; Dolomite: 9.9㎏, of which CaO≥30.0%, Fe 2 O 3 ≤0.15%, MgO≤21.0%, H 2 O≤1%; monetite: 8.4㎏, of which CaO≥27.5%, Fe 2 O 3 ≤0.10%, B 2 O 3 ≥38.0%, SiO 2 ≤6.5%, H 2 O≤1%; white piolite: 23.9㎏, of which SiO 2 ≥80.0%, Al 2 O 3 ≥10.0%, Fe 2 O 3 ≤0.50%, H 2 O≤1%; Fluorite: 2.2㎏, of which: CaF 2 ≥90.0%, H 2 O≤1%; Soda ash: 0.2㎏, of which: Na 2 CO 3 ≥98.0%, H 2 O≤1%; the above percentages are all mass percentages.

[0042] Before weighing, the content of CaO in the quicklime should be detected every day, and the amount of lime should be adjusted according to its content.

[0043] The production steps are:

[0044] 1. Weigh all kinds of raw materials according to their proportions; among them, fluorite, dolomi...

Embodiment 3

[0056] To produce 100㎏ E-glass fiber, the required amount of each raw material is: industrial aluminum ore: 56.9㎏, of which: SiO 2 ≥58.0%, Al 2 O 3 ≥18.5%, Fe 2 O 3 ≤0.6%, H 2 O≤1%; quicklime: 15.6㎏, of which: CaO≥85.0%, Fe 2 O 3 ≤0.15%, MgO≤3%, H 2 O≤1%; Dolomite: 9.8㎏, of which CaO≥30.0%, Fe 2 O 3 ≤0.15%, MgO≤21.0%, H 2 O≤1%; monetite: 9.1㎏, of which CaO≥27.5%, Fe 2 O 3 ≤0.10%, B 2 O 3 ≥38.0%, SiO 2 ≤6.5%, H 2 O≤1%; white piolite: 23.8㎏, of which SiO 2 ≥80.0%, Al 2 O 3 ≥10.0%, Fe 2 O 3 ≤0.50%, H 2 O≤1%; Fluorite: 2.2㎏, of which: CaF 2 ≥90.0%, H 2 O≤1%; Soda ash: 0.2㎏, of which: Na 2 CO 3 ≥98.0%, H 2 O≤1%; the above percentages are all mass percentages.

[0057] Before weighing, the content of CaO in the quicklime should be detected every day, and the amount of lime should be adjusted according to its content.

[0058] The production steps are:

[0059] 1. Weigh all kinds of raw materials according to their proportions; among them, fluorite, dolomi...

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Abstract

The invention discloses a method for producing alkali-free glass fiber by taking industrial slag as a raw material. The method comprises the following steps: a) weighing; b) preparing the raw materials; c) melting; d) passing; e) performing wire-drawing; f) drying; and g) performing a post-treatment step, wherein the raw materials comprise the following components in parts by weight: 460-520 parts of industrial aluminum ore, 100-160 parts of quicklime, 70-100 parts of dolomite, 60-80 parts of colemanite, 180-240 parts of white afrodite, 10-30 parts of fluorite and 1-5 parts of soda ash, and the sum of the parts by weight of all the components is 1000. According to the method disclosed by the invention, the alkali-free glass fiber is produced by taking the industrial slag which is rich in silicon aluminum as one of the main raw materials, so that the product quality is ensured, the cost of the raw materials is greatly saved, the environmental pollution is simultaneously reduced, and the method further has great economic benefits and better social benefits.

Description

technical field [0001] The invention belongs to the technical field of alkali-free glass fiber, and in particular relates to a method for producing alkali-free glass fiber by using industrial slag as a raw material. Background technique [0002] E-glass fiber, R 2 O(K 2 O+Na 2 O) ≤ 0.8%, is a kind of aluminum borosilicate composition, chemical stability, electrical insulation performance, strength are very good. It is mainly used as electrical insulation material, reinforcing material of FRP and tire cord, and used in composite cable support. [0003] At present, my country's glass fiber industry mainly adopts the pool kiln wire drawing production process. When using this process to produce E glass fiber, the main mineral powder (micro powder) raw material is pyrophyllite. With the expansion of global pool kiln glass fiber production capacity, mineral powder raw material resources will continue to shrink. At the same time, in the industrial production of other products, ...

Claims

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Application Information

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IPC IPC(8): C03C13/00C03B37/022
CPCC03C3/091C03C13/00
Inventor 刘钢刘术明陈锐邓贤朝吴远坤何斌朱铭
Owner NEIJIANG HUAYUAN ELECTRONICS MATERIALS
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