BDF board and manufacturing method and application thereof

A glass fiber cotton and K2O technology, applied in glass manufacturing equipment, manufacturing tools, glass production, etc., can solve the problems of increased thermal conductivity, poor heat preservation effect, short service life, etc., and achieve low cost, not easy to absorb moisture, The effect of reducing production costs

Active Publication Date: 2015-11-18
CHONGQING ZAISHENG TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most of the insulation materials used in the interior decoration of "passive houses" are EPS polystyrene board, XPS extruded board, steel wire grid Shule board, vitrified microbead insulation material, rubber powder polystyrene particle insulation material, EPS board High water absorption rate, easy to absorb water, with the increase of water absorption, its thermal conductivity also increases, the thermal insulation effect also becomes worse, and it is easy to age, and the service life is relatively short. To make the "passive house" more energy-saving Well, it is necessary to study an inorganic material as insulation material, which is more environmentally friendly, safer and more energy-saving

Method used

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  • BDF board and manufacturing method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0027] 1) Select silica sand, soda ash, feldspar, dolomite, limestone and Glauber's salt so that the above raw materials meet the following ratio after mixing: SiO 2 : 55 parts, Al 2 o 3 : 25 parts, CaO: 3 parts, MgO: 1.5 parts, K 2 O: 1.5 parts, Na 2 O: 9 parts, BaO: 5 parts;

[0028] 2) Put the raw materials in step 1) into the melting furnace and melt to obtain molten glass, with a melting temperature of 1520°C;

[0029] 3) introducing the molten glass in step 2) into a centrifuge, and when the centrifuge rotates at a high speed, fine streams of glass are thrown out from the side wall of the centrifuge to fibrillate the molten glass;

[0030] 4) In the combustion chamber, use a high-temperature and high-speed flame to further draw the thin glass stream in step 3), and cut it to obtain 0.3 μm glass fibers after reaching a certain length;

[0031] 5) Add glass fiber into the opening machine for opening, and the opening speed is controlled at 100kg / h;

[0032] 6) Then th...

Embodiment 2

[0037] 1) Select silica sand, soda ash, feldspar, dolomite, limestone and Glauber's salt so that the above raw materials meet the following ratio after mixing: SiO 2 : 53 parts, Al 2 o 3 : 27 parts, CaO: 3 parts, MgO: 2 parts, K 2 O: 1 part, Na 2 O: 9 parts, BaO: 5 parts;

[0038] 2) adding the raw materials of step 1) into the melting furnace and melting to obtain molten glass, the melting temperature is 1550°C;

[0039] 3) introducing the molten glass in step 2) into a centrifuge, and when the centrifuge rotates at a high speed, fine streams of glass are thrown out from the side wall of the centrifuge to fibrillate the molten glass;

[0040] 4) In the combustion chamber, use a high-temperature and high-speed flame to further draw and stretch the glass thin stream in step 3), and cut it to obtain 1.5 μm glass fibers after reaching a certain length;

[0041] 5) Add glass fiber into the opening machine for opening, and the opening speed is controlled at 100kg / h;

[0042] ...

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Abstract

The invention discloses a BDF board and manufacturing method and application thereof. The BDF board is made of glass fiber cotton with the diameter ranging from 0.3 micrometer to 2.0 micrometer. The glass fiber cotton is composed of, by mass, 55-60 parts of SiO2, 20-30 parts of Al2O3, 2-3 parts of CaO, 1-2 parts of MgO, 1-2 parts of K2O, 9-10 parts of Na2O, 3-4 parts of BaO and inescapable foreign matter. The invention further discloses a BDF board manufacturing method and application of the BDF board in passive house building. The BDF board is good in heat preservation effect, high in mechanical strength and long in service life, and the above effects of the BDF board can be further guaranteed by the adoption of the manufacturing method.

Description

technical field [0001] The invention belongs to the field of inorganic materials, and in particular relates to a BDF board and its preparation method and application. Background technique [0002] The concept of "passive house" buildings was established on the basis of low-energy buildings in Germany in the 1980s. In 1988, Professor Adamson of Lund University in Sweden and Dr. Wolfgang Feist of Germany ) first proposed this concept. They believed that "passive house" buildings should be buildings that can maintain a comfortable indoor thermal environment without active heating and air conditioning systems. In 1991, the first "Passive House" building (Passive House Darmstadt Kranichstein) was built in Darmstadt, Germany. In the past ten years since it was built, it has been operating normally according to the design requirements and achieved good results. . [0003] Energon, the world's largest passive office building, was built in Ulm, Germany in 2002. According to the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/00C03B37/022
CPCY02P40/57
Inventor 郭茂秦大江周凌桠
Owner CHONGQING ZAISHENG TECH CORP
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