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High-strength foam glass, and preparation method and application thereof

A foam glass and high-strength technology, which is applied in the field of high-strength foam glass and its preparation, can solve the problems of high thermal conductivity, low thermal conductivity, poor cold insulation and thermal insulation effects, etc., to improve strength and toughness , the effect of low thermal conductivity

Inactive Publication Date: 2020-12-01
海能发防腐保温工程有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Foam glass is an inorganic material with a relatively uniform microporous structure. Its raw material is glass-ceramics. The quality of glass-ceramics is excellent and it has a wide range of uses. However, it also has high thermal conductivity, cold insulation and heat insulation effects. Poor shortcomings, can not be directly applied to low temperature insulation, cold preservation, heat preservation and other occasions, therefore, how to make glass-ceramics into low-density, low thermal conductivity, and high-quality low-temperature insulation with high compressive strength and high flexural strength Cold insulation materials have become the main task of developing and producing microcrystalline foam glass

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This embodiment provides a kind of high-strength cellular glass, and its preparation method comprises the following steps:

[0028] S1, according to the mass percentage of the following components: SiO 2 67%, Al 2 o 3 2.5%, Na 2 CO 3 8.6%, K 2 CO 3 2.2%, CaCO 3 1.7%, MgCO 3 0.9%, H 3 BO 3 15.8%, ZnO 0-1.3%, weighing dolomite, feldspar, quartz sand, borax, soda ash, calcium carbonate and other raw materials that have been crushed and processed into a particle size of less than 5mm.

[0029] S2. Put the weighed raw materials above into a melting furnace and heat them to 1250° C. to obtain a glass solution.

[0030] S3. Lead the above-mentioned glass solution through the glass liquid chute into a pool containing clear water, so that the high-temperature glass solution stream is crushed into glass particles with a particle size of about 5.0-8.0mm after being quenched with clear water, and then placed in Carry out drying treatment in a desiccator at 220°C un...

Embodiment 2

[0035] This embodiment provides a kind of high-strength cellular glass, and its preparation method comprises the following steps:

[0036]S1, according to the mass percentage of the following components: SiO 2 65%, Al 2 o 3 3.3%, Na 2 CO 3 9%, K 2 CO 3 3.2%, CaCO 3 3%, MgCO 3 3.2%, H 3 BO 3 12%, ZnO 1.3%, weighing raw materials such as dolomite, feldspar, quartz sand, borax, soda ash, calcium carbonate, etc. that have been pulverized and processed into a particle size of less than 5mm.

[0037] S2. Put the weighed raw materials above into a melting furnace and heat them to 1250° C. to obtain a glass solution.

[0038] S3. Lead the above-mentioned glass solution through the glass liquid chute into a pool containing clear water, so that the high-temperature glass solution stream is crushed into glass particles with a particle size of about 5.0-8.0mm after being quenched with clear water, and then placed in Carry out drying treatment in a drier at 250°C until the...

Embodiment 3

[0043] This embodiment provides a kind of high-strength cellular glass, and its preparation method comprises the following steps:

[0044] S1, according to the mass percentage of the following components: SiO 2 63%, Al 2 o 3 4.2%, Na 2 CO 3 12.8%, K 2 CO 3 2.9%, CaCO 3 2.8%, MgCO 3 1.6%, H 3 BO 3 11.8%, ZnO 0.9%, weighing dolomite, feldspar, quartz sand, borax, soda ash, calcium carbonate and other raw materials that have been crushed and processed into a particle size of less than 5mm.

[0045] S2. Put the weighed raw materials above into a melting furnace and heat them to 1250° C. to obtain a glass solution.

[0046] S3. Lead the above-mentioned glass solution through the glass liquid chute into a pool containing clear water, so that the high-temperature glass solution stream is crushed into glass particles with a particle size of about 5.0-8.0mm after being quenched with clear water, and then placed in Carry out drying treatment in a desiccator at 220°C unt...

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Abstract

The invention is applicable to the technical field of thermal insulation materials, and provides high-strength foam glass and a preparation method and application thereof. The foam glass comprises thefollowing components: borosilicate microcrystalline glass, carbon black, manganese dioxide, borax and rock wool fibers. According to an embodiment of the invention, the borosilicate microcrystallineglass is used as a raw material, the carbon black and the manganese dioxide are used as a composite foaming agent, the borax is used as a modifier, and the rock wool fibers are used as a reinforcing and toughening agent, so the strength, toughness and other properties of the foam glass can be obviously improved, and the high-quality foam glass with the advantages of low heat conductivity coefficient, heat insulation performance, cold insulation performance, heat preservation performance, high strength, high toughness, environmental protection performance, no toxicity and the like is prepared.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation materials, and in particular relates to a high-strength foam glass and its preparation method and application. Background technique [0002] The research and development and production of foam glass in my country started in the 1970s, but due to the relatively insufficient investment in research and development funds and technical strength, until now, the technology in the production of low-density, high-quality foam glass is still relatively insufficient However, the foam glass supplied on the market still has problems such as compressive strength under the specified density, low carrying strength, and high thermal conductivity, especially the foam glass used in the low-temperature heat insulation and cold preservation of LNG, liquid ethane, and liquid ethylene. There is still a huge room for improvement in the production technology of high-quality foam glass products. [0003] Foam gla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C11/00
CPCC03C11/007
Inventor 洪树华梁东明徐晓静王志刚傅维享张宏陈祖斌郑树峰洪延杰梁旭
Owner 海能发防腐保温工程有限责任公司
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