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Flame blowing method and flame blowing system

A flame and natural gas technology, applied in glass manufacturing equipment, manufacturing tools, etc., can solve the problems of low energy utilization, high heat consumption, large initial investment, etc., and achieve the effects of reducing heat loss, sufficient combustion, and reducing energy consumption

Active Publication Date: 2020-04-17
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, this method requires a large modification of the existing equipment, a large initial investment, and because a large amount of combustion-supporting air needs to be introduced, and the heating of the combustion-supporting air from room temperature to the injection temperature also consumes a large amount of heat, so there is still energy in the later use process. Defects such as low utilization rate and high production cost

Method used

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  • Flame blowing method and flame blowing system
  • Flame blowing method and flame blowing system
  • Flame blowing method and flame blowing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Preparation of glass microfibers with a heat-resistant temperature of 600°C

[0050] Ingredients:

[0051] composition SiO 2

al 2 o 3

Fe 2 o 3

MgO B 2 o 3

TiO 2

content(%) 60.0 20.0 8.0 8.0 2.0 2.0

[0052] see figure 2 According to the formula requirements, it is formulated into glass batch materials, put into the pool kiln for melting, the melting temperature is controlled at 1550°C±20°C, and the mixed heating method of electrodes and flames is used in the forehearth to form glass liquid with stable temperature and good homogenization. To the leak plate; the melted glass passes through the leak plate and the leak nozzle, and is drawn by the rubber roller drawing machine to form a primary fiber with a diameter of 100-300 μm, and then is sent to the injection port of the combustion chamber through the guide mechanism, where Melted and stretched to the required size (average diameter 1.5-2.0 microns), form...

Embodiment 2

[0057] Preparation of glass microfibers with a heat-resistant temperature of 600°C

[0058] Ingredients:

[0059] composition SiO 2

al 2 o 3

Fe 2 o 3

MgO B 2 o 3

TiO 2

content(%) 60.0 20.0 8.0 8.0 2.0 2.0

[0060] see figure 2 According to the formula requirements, it is formulated into glass batch materials, put into the pool kiln for melting, the melting temperature is controlled at 1550°C±20°C, and the mixed heating method of electrodes and flames is used in the forehearth to form glass liquid with stable temperature and good homogenization. To the leak plate; the melted glass passes through the leak plate and the leak nozzle, and is drawn by the rubber roller drawing machine to form a primary fiber with a diameter of 100-300 μm, and then is sent to the injection port of the combustion chamber through the guide mechanism, where Melted and stretched to the required size (average diameter 1.5-2.0 microns), form...

Embodiment 3

[0065] Preparation of glass microfibers with a heat-resistant temperature of 650°C

[0066] Ingredients:

[0067] composition SiO 2

al 2 o 3

MgO B 2 o 3

TiO 2

content(%) 65.0 23.0 8.0 2.0 2.0

[0068] see figure 2 According to the formula requirements, it is formulated into glass batch materials, put into the pool kiln for melting, and the melting temperature is controlled at 1570°C±20°C. The mixed heating method of electrodes and flames is used in the forehearth to form glass liquid with stable temperature and good homogenization. To the leak plate; the melted glass passes through the leak plate and the leak nozzle, and is drawn by the rubber roller drawing machine to form a primary fiber with a diameter of 100-300 μm, and then is sent to the injection port of the combustion chamber through the guide mechanism, where Melted and stretched to the required size (average diameter 1.5-2.0 microns), forming glass microfibers....

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Abstract

The invention relates to a flame blowing system and a flame blowing method. The system comprises a natural gas station, a natural gas conveying pipeline, a natural gas pressure regulating device, a natural gas flow device, a combustion-supporting air station, a combustion-supporting air conveying pipeline, a combustion-supporting air pressure regulating device, a compressed air flow device, an oxygen station, an oxygen conveying pipeline, an oxygen pressure regulating device, an oxygen flow device, a gas premixing chamber for mixing natural gas with adjusted pressure and adjusted flow, and combustion-supporting gas obtained by premixing combustion-supporting air and oxygen, and a combustion chamber for combusting the mixed gas formed in the gas premixing chamber. The content of the glass microfiber residue balls prepared by the system and the method is low.

Description

technical field [0001] The invention relates to a flame blowing method and system for manufacturing glass microfibers, belonging to the field of inorganic non-metallic material manufacturing. Background technique [0002] The manufacturing process of glass fiber is mainly divided into centrifugal method and flame blowing method. The average diameter of glass fiber produced by centrifugal method is generally 3-8μm, while the average diameter of glass fiber produced by flame blowing method can reach 0.1-2.0μm, so it is also called glass microfiber. Due to the advantages of small fiber diameter, soft processed products, lower thermal conductivity, good sound absorption effect, and strong adsorption capacity, glass microfibers are often used as materials for heat insulation, sound absorption, and filtration. Depending on the specific application field and place, the size of the required glass microfibers is different. For example, when used as a thermal insulation material for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/06C03C13/00
CPCC03B37/06C03C13/00
Inventor 王振朋刘劲松蔡增伟张焱
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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