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Composite combining silica thermal repairing material and preparation method thereof

A technology of heat repair material and composite binder, which is applied in the field of composite bonded silicon heat repair materials, which can solve the problems of high thermal expansion coefficient of natural silica, pollution of glass liquid, and inability to quickly achieve effective welding of repaired parts, etc., to achieve plasticity and adhesion Strong, improved performance indicators, and conducive to the effect of hot repair operations

Active Publication Date: 2009-05-06
山西高科耐火材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor bonding of the existing hot repair materials, it is easy to fall into the glass liquid and cause glass liquid pollution; natural silica has a high thermal expansion coefficient, which not only affects the volume stability, but also cannot be repaired densely, which is likely to cause repeated repairs in the future; the repaired part cannot be quickly realized. Effective welding, affecting construction quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Prepare siliceous hot-filling material of the present invention: prepare and weigh the siliceous clinker aggregate (with SiO 47% of raw material gross weight) 2 95.0% waste silica bricks processed to the required particle size), 11% siliceous clinker powder (SiO 2 content of 95.0% waste silica brick processing); 26% natural silica powder (SiO 2 content of 96.0%), 3.5% white clay, 1.5% silica fume (SiO 2 Content is 92.0%), 11% composite binder. Among them, the natural silica powder 200-mesh sieve rate is 98%, the siliceous clinker powder 200-mesh sieve rate is 99%, and the white clay 325-mesh sieve rate is 98%. Pour the siliceous clinker aggregate, siliceous clinker powder, natural silica powder, white clay, and silica fume into the mixer in proportion to mix. After fully stirring, slowly add the prepared composite binder and continue stirring. Until it is fully mixed, it can be packed into bags. Secondary mixing is required before use to achieve the best constructio...

Embodiment 2

[0018] Prepare siliceous hot-filling material of the present invention: prepare 49% siliceous refractory aggregate (with SiO 2 Fused quartz with a content of 98.0% processed to the required particle size), 11% siliceous clinker powder (using SiO 2 98.0% fused silica processing); 25% natural silica powder (SiO 2 content of 96.0%), 3.5% of bentonite, 1.2% of silica fume (SiO 2 Content is 92.0%), 10.3% composite binder. Among them, the natural silica powder 200-mesh sieve rate is 98%, the siliceous clinker powder 200-mesh sieve rate is 99%, and the bentonite 325-mesh sieve rate is 98%. Pour the siliceous clinker aggregate, siliceous clinker powder, natural silica powder, bentonite, and silica fume into the mixer in proportion to mix. After fully stirring, slowly add the prepared composite binder and continue stirring until Mix well and pack into bags. Secondary mixing is required before use to achieve the best construction effect.

Embodiment 3

[0020] Prepare siliceous hot-filling material of the present invention: prepare 51% siliceous clinker aggregate (with SiO 2 Fused quartz with a content of 98.0% processed to the required particle size), 10% siliceous clinker powder (using SiO 2 98.0% fused silica processing); 25% natural silica powder (SiO 2 content of 96.0%), 2.5% of bentonite, 1.5% of white clay, 1.0% of silica fume (SiO 2 Content is 92.0%), 9% composite binder. Among them, the natural silica powder 200-mesh sieve rate is 98%, the siliceous clinker 200-mesh sieve rate is 99%, and the bentonite and white clay 325-mesh sieve rates are 98%. Pour the siliceous clinker aggregate, siliceous clinker powder, natural silica powder, bentonite, white clay, and silica fume into the mixer in proportion to mix. After fully stirring, slowly add the prepared composite binder and continue Stir until well mixed and pack into bags. Secondary mixing is required before use to achieve the best construction effect.

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Abstract

The invention discloses a composite bonded silicious hot repair material, which belongs to the technical field of refractory materials. The repair material comprises the following compositions in percentage by weight: 45 to 55 percent of silicious clinker aggregate, 8 to 12 percent of silicious clinker powder, 20 to 30 percent of natural silica powder, 8 to 12 percent of complex binder, 3 to 5 percent of plasticizer, and 1 to 1.5 percent of dispersant. The silicious clinker aggregate and the silicious clinker powder are waste main crown silica bricks (SiO2 is more than or equal to 95 percent) and fused quartz tubes or fused quartz wedges (SiO2 is more than or equal to 98 percent), SiO2 is more than or equal to 96 percent in natural silica, the complex binder is formed by compounding an SiO2 ceramic bond and a phosphorous acid (phosphate) chemical bond, the plasticizer is white clay or bentonite, and the dispersant is silica fume. The repair material is processed according to the particle size. The invention can satisfy various conditions proposed by hot repair of a kiln to the repair material, can also realize the aims of saving energy sources and increasing the service life of the kiln, and can also be used for filling or building positions which are not suitable for silica brick masonry during the cold repair at the same time.

Description

technical field [0001] The invention relates to a compound bonded siliceous heat repair material, which belongs to the field of refractory materials. Background technique [0002] Glass production is a high-energy-consuming production project, so the maintenance of glass melting furnaces is of great significance to the production of enterprises. When the kiln body is under long-term high temperature, the refractory material in the flame space is impacted by thermal radiation and overflow, and perforation and fire occur. In serious cases, it will partially sink and collapse, which will bring serious consequences to the life and production of the glass kiln. During the operation of the kiln, it is necessary to repair the damaged parts of the kiln body many times. Therefore, adopting the hot repair method (that is, the kiln is not stopped during maintenance or the kiln is not stopped, and the kiln body is repaired when the temperature is high) not only saves the time of stoppi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 韩梅陈俊红赵艳青李祥俭崔佺寿王虹
Owner 山西高科耐火材料股份有限公司
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