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Production formula of low boron fiberglass

A technology of glass fiber and production formula, which is applied in the field of production formula of glass fiber produced by using quicklime instead of limestone, which can solve the problems of increasing waste gas emissions, increasing production costs, and improving kiln energy consumption, so as to reduce waste gas emissions and save Energy consumption, the effect of increasing the melting rate of the furnace

Inactive Publication Date: 2009-05-06
JUSHI GRP CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the melting and decomposition process of limestone, CaO will be produced on the one hand, and a large amount of CO will be produced on the other hand. 2 , which will not only increase the emission of exhaust gas, but also increase the energy consumption of the kiln, thereby increasing the production cost

Method used

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  • Production formula of low boron fiberglass
  • Production formula of low boron fiberglass
  • Production formula of low boron fiberglass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: Mix 126.8kg of quartz sand, 154.2kg of quicklime, 618.5kg of pyrophyllite, 67.4kg of calcined dolomite, 110.5kg of boronite, etc., and then put the mixture at a temperature of 1450℃-1570℃ The molten glass is melted and clarified in the kiln, and the formed glass liquid flows through the passage to the fiber forming drain plate at the bottom of the passage. The glass liquid is pulled out through the drain nozzle on the drain plate at a temperature of 1200°C-1300°C to form glass fibers. The glass fibers are drawn and wound on the rotating head of the drawing machine to form raw silk cakes or yarn clusters. These glass fibers can be further processed by conventional methods to meet expected requirements.

Embodiment 2

[0013] Example 2: Produced by the same process as Example 1. The mixture was prepared into a mixture of 147.8 kg of quartz sand, 178.5 kg of quicklime, 617.5 kg of pyrophyllite, 70.9 kg of calcined dolomite, and 47.4 kg of boronite. The molten glass is melted and clarified in the kiln, and the formed glass liquid is drawn into glass fiber.

Embodiment 3

[0014] Example 3: Produced by the same process as Example 1. Mix 209.1kg of quartz sand, 186kg of quicklime, 571.8kg of pyrophyllite, 83.6kg of calcined dolomite, etc., and then melt and clarify the mixture in a tank kiln. The formed glass liquid is drawn into glass fibers.

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Abstract

The invention relates to a formulation for producing low-boron glass fiber, in particular to a formulation for producing glass fiber by utilizing quicklime to replace limestone. In the prior glass fiber formulation, the limestone is generally used to introduce CaO, but in the process of melting and decomposing the limestone, a large amount of CO2 is generated for not only increasing the emission of waste gas, but also increasing the energy consumption of a kiln furnace. The invention provides the formulation for producing the low-boron glass fiber, which is characterized in that compositions of main raw materials include quartz sand, quicklime, pyrophyllite, burned dolomite, borocalcite and the like. The low-boron glass fiber produced by the formulation has the advantages of not only improving melting ratio of the kiln furnace, quickening reaction of glass materials, saving energy consumption, achieving the aim of lowering production cost, but also effectively reducing emission amount of waste gas and lowering environmental pollution.

Description

Technical field [0001] The invention relates to a production formula of low-boron glass fiber, in particular to a production formula of using quicklime instead of limestone to produce glass fiber. Background technique [0002] E glass is the most commonly used glass component for the production of continuous glass fibers. The components of traditional E glass fiber generally have a relatively high content of CaO, which is mainly derived from boronite and limestone. Due to the high price of boronite, a large amount of boride will be discharged into the atmosphere with waste gas during the production process to pollute the environment. Therefore, the development of low boron E glass fiber is of great significance in terms of raw material cost and environmental protection. In the raw materials of low-boron E glass fiber, the amount of boronite is very small or even zero, which leads to the need to use a large amount of limestone to introduce CaO. During the melting and decomposition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C12/00
Inventor 张毓强杨国明曹国荣张兵章林高雪林邢文忠
Owner JUSHI GRP CO
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