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Method for producing alkali-proof glass fiber

An alkali-resistant glass fiber and production method technology, applied in glass manufacturing equipment, manufacturing tools, etc., can solve problems such as inability to eliminate glass ball pollution and re-pollution, increase in glass fiber production costs, and affect the durability of GRC products, and achieve energy-saving effects Remarkable, excellent tensile strength and alkali resistance, easy to adjust and control

Active Publication Date: 2008-07-09
XIANGYANG HUIERJIE GLASSFIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the "secondary melting and drawing process" is that the energy consumption is relatively large, because it eliminates the process of making balls and remelting the balls; the second is that the quality of the glass is poor, because it cannot eliminate the pollution and pollution of the glass balls by external factors. Recontamination of the crucible to the molten glass; in view of the above two points, the fiber seriously affects the durability of the GRC product in the application
Compared with the natural gas plus auxiliary electric melting pool kiln method, the "pure electric melting method" consumes more energy, and the power consumption per ton of wire is more than 3000 degrees more than the natural gas pool kiln method. Compared with the auxiliary electric furnace, it is not easy to adjust and control in the production process, the melting quality is uneven, and it is easy to produce melting dead angles, resulting in crystallization problems, and the production cost of glass fiber increases by about 20%.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In this example 1, the mixing ratio required to produce 100Kg of alkali-resistant glass fiber is used. The amount of each raw material is: Quartz sand: 61kg, of which SiO 2 Content: 99.9%, Fe 2 O 3 Content: ≤0.2%, ALO 2 :≤0.8%; potassium nitrate: 5.5kg of which K 2 O content: ≥45%; calcite: 8.5kg, of which, CaO content: ≥55%, Fe 2 O 3 Content: ≤0.2%, ALO 2 :≤0.3%; Zircon sand: 24kg, of which ZrO 2 Content: ≥63%, Fe 2 O 3 Content: ≤0.2%, ALO 2 :≤0.2%; Soda ash: 23kg, of which, Na 2 O content: ≥55; fluorite: 0.5 kg, of which, CaF content: ≥80, Fe 2 O 3 Content: ≤0.2%, ALO 2 :≤0.3%; rutile: 7.9KG, of which TiO 2 : ≥85%.

[0026] Before weighing, soda ash should be checked for moisture content every day, and the amount of soda ash should be adjusted appropriately according to the level of moisture content.

[0027] 1. Except for the above-mentioned raw materials, which must pass 250 meshes for zircon sand and 80 meshes for quartz sand, the other materials must pass 40 meshes af...

Embodiment 2

[0038] In the second embodiment, the mixing ratio required to produce 100Kg of alkali-resistant glass fiber is used. The amount of each raw material is: quartz sand: 54kg, of which SiO 2 Content: 99.9%, Fe 2 O 3 Content: ≤0.2%, ALO 2 :≤0.8%; potassium nitrate: 3.5kg of which K 2 O content: ≥45%; calcite: 9.5 kg, of which, CaO content: ≥55%, Fe 2 O 3 Content: ≤0.2%, ALO 2 :≤0.3%; Zircon sand: 26kg, of which ZrO 2 Content: ≥63%, Fe 2 O 3 Content: ≤0.2%, ALO 2 :≤0.2%; soda ash: 26kg, of which, Na 2 O content: ≥55; fluorite: 1.0kg, of which, CaF content: ≥80, Fe 2 O 3 Content: ≤0.2%, ALO 2 :≤0.3%; rutile: 1.5KG, of which TiO 2 : ≥85%.

[0039] Before weighing, soda ash should be checked for moisture content every day, and the amount of soda ash should be adjusted appropriately according to the level of moisture content.

[0040] 1. Except for the above-mentioned raw materials, which must pass 250 meshes for zircon sand and 80 meshes for quartz sand, the others must pass 40 meshes afte...

Embodiment 3

[0050] In this example 3, the mixing ratio required to produce 100Kg of alkali-resistant glass fiber is used. The amount of each raw material is: quartz sand: 61kg, of which SiO 2 Content: 99.9%, Fe 2 O 3 Content: ≤0.2%, ALO 2 :≤0.8%; potassium nitrate: 3.5kg of which K 2 O content: ≥45%; calcite: 9.6kg, of which, CaO content: ≥55%, Fe 2 O 3 Content: ≤0.2%, ALO 2 :≤0.3%; Zircon sand: 28kg, of which ZrO 2 Content: ≥63%, Fe 2 O 3 Content: ≤0.2%, ALO 2 :≤0.2%; Soda ash: 27kg, of which Na 2 O content: ≥55; fluorite: 1.5kg, of which, CaF content: ≥80, Fe 2 O 3 Content: ≤0.2%, ALO 2 : ≤0.3%.

[0051] Before weighing, soda ash should be checked for moisture content every day, and the amount of soda ash should be adjusted appropriately according to the level of moisture content.

[0052] 1. Except for zircon sand that needs to pass 250 meshes and quartz sand that needs to pass 80 meshes, the above raw materials are crushed to pass 40 meshes.

[0053] 2. Mix the weighed potassium nitrate, ...

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Abstract

The invention is a process for producing alkali-resistant glass fibers, which belongs to the technical field of alkali-resistant glass fibers. The invention mainly resolves the problems of high production cost of the two-time melting wire drawing technology, pollution of glass marbles from external factors and recontamination of glass liquid from crucibles. The invention is mainly characterized in that grinding, mixing and evenly stirring quartz sand, potassium nitrate, calcite, zircon sand, calcined soda and fluorite powders, then sending the six materials into a melting pool to be melted, wherein the melting pool adopts zirconia corundum blocks without shrinkage cavities as liners or masonry bodies, and using natural gas, the six materials flow into a clarification pool which adopts zirconia corundum blocks without shrinkage cavities as liners or masonry bodies via passing through a throat to be clarified, flowing into an operation pool after homogenizing, the clarification pool and the operation pool are both provided with an molybdenum electrode heating apparatus, the materials flow out from a bushing well made of platinum dissolution with 800-2400 pores, the surface is further coated with a layer of macromolecular latex, finally intertwining materials on a headstock to prepare glass fiber. The invention has the advantages of stable melting temperature, high quality, low energy consumption, less pollution, and is mainly applied for the production of alkali-resistant glass fibers.

Description

Technical field [0001] The invention belongs to the technical field of alkali-resistant glass fibers. Specifically, it relates to a preparation method for producing alkali-resistant glass fiber by using natural gas plus auxiliary electric melting tank kiln method. Background technique [0002] Alkali-resistant glass fiber, also known as alkali-resistant glass fiber, was invented by Dr. Ma jumdar of the British Institute of Architecture and developed and industrialized in the 1970s in cooperation with Pilkington Glass Company in the United Kingdom. It is mainly used for Reinforced cement concrete (referred to as GRC) can effectively resist the erosion of alkaline substances in cement concrete. Since alkali-resistant glass fiber has the characteristics of light weight, high strength, non-combustibility, high temperature resistance, corrosion resistance of alkaline substances, strong designability, and easy forming, it can replace steel bars in non-load-bearing structures to enhance...

Claims

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Application Information

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IPC IPC(8): C03B37/02C03C13/02
Inventor 杨兴明郭清
Owner XIANGYANG HUIERJIE GLASSFIBER
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