Preparation method of mineral fiber raw material and obtained mineral fiber raw material

A mineral fiber and raw material technology, applied in the field of preparation of mineral fiber raw materials, can solve the problems of high discrete rate of products, unstable fiber performance, limited interrelationship, etc., and achieve the effect of simple process, low cost and wide sources

Pending Publication Date: 2020-01-17
河北地质大学
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  • Abstract
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Problems solved by technology

[0003] In the production process of the current silicate continuous fiber, especially the basalt fiber, due to the complex composition of natural rock and many impurities, the fluctuation of the composition causes the instability of the fiber performance and the high discrete rate of the product, which affects its high-end application
The production process of mineral fiber emphasizes that the chemical composition ratio is used to limit the raw material formula, but there are more than a dozen main chemical components in rocks, and there are differences between pure chemical raw materials and rocks in terms of melting point, structure, and chemical activity. The method of blending raw materials with chemical components is basically unrealizable; while the method of mixing rocks is limited by the interrelationships between the components, and there are many variables, making it difficult to blend

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  • Preparation method of mineral fiber raw material and obtained mineral fiber raw material
  • Preparation method of mineral fiber raw material and obtained mineral fiber raw material

Examples

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Effect test

Embodiment 1

[0014] Mineral ratio (mass fraction): 52% feldspar minerals, 33% pyroxene minerals, 15% associated minerals. The mass fraction of terminal components in feldspar minerals (based on feldspar minerals): albite 44%, anorthite 32%, potassium feldspar 24%; the mass fraction of terminal components in pyroxene minerals (based on Pyroxene minerals): enstatite 27%, ferropyroxene 57%, wollastonite 16%; associated minerals: quartz, apatite, magnetite, ilmenite.

[0015] The preparation process of mineral fiber raw materials: see the process figure 1 . Firstly, the feldspar and pyroxene samples were crushed, passed through a 30-mesh sieve first, and the lower portion was taken, and then the part was passed through a 40-mesh sieve, and the upper portion of the sieve was taken. Finally, two kinds of mineral particles were obtained respectively, with a particle size of about 0.5cm. Accurately weigh 5.69g of feldspar particles, including 5.18g of feldspar and 0.51g of quartz; accurately wei...

Embodiment 2

[0019] Mineral ratio (mass fraction): 66% feldspar, 29% pyroxene, 5% associated minerals. The mass fraction of terminal components in feldspar minerals (based on feldspar minerals): albite 43%, anorthite 44%, potassium feldspar 13%; the mass fraction of terminal components in pyroxene minerals (based on Pyroxene minerals): enstatite 41%, ferropyroxene 41%, wollastonite 18%; associated minerals: apatite, magnetite, ilmenite.

[0020] The preparation process of mineral fiber raw materials: see the process figure 1 . Firstly, feldspar and pyroxene were crushed and sieved respectively to obtain two kinds of mineral particles with a particle size of about 0.5 cm. Accurately weigh 6.63g of feldspar particles and 3.38g of pyroxene particles. Pyroxene contains 0.55g of associated apatite, magnetite and ilmenite in total. Mix and stir the feldspar and pyroxene particles evenly, transfer them into a platinum crucible, melt and react at 1350°C for 5 hours to obtain a silicate melt, th...

Embodiment 3

[0022] Mineral ratio (mass fraction): 59% feldspar, 31% pyroxene, 10% associated minerals. The mass fraction of terminal components in feldspar minerals (based on feldspar minerals): albite 49%, anorthite 44%, potassium feldspar 6%; the mass fraction of terminal components in pyroxene minerals (based on Pyroxene minerals): enstatite 52%, ferropyroxene 29%, wollastonite 19%; associated minerals: apatite, magnetite, ilmenite.

[0023] The preparation process of mineral fiber raw materials: see the process figure 1 . Firstly, feldspar and pyroxene were crushed and sieved to obtain two kinds of mineral particles with a particle size of about 0.3 cm. Accurately weigh 6.28g of feldspar particles, including 0.36g of quartz; weigh 3.72g of pyroxene particles, including 0.63g of associated apatite, magnetite, and ilmenite. Mix feldspar and pyroxene particles and stir evenly, transfer them into a platinum crucible, melt and react at 1200°C for 6 hours to obtain a silicate melt, then ...

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Abstract

The invention relates to a preparation method of a mineral fiber raw material and the mineral fiber raw material prepared by the method, and the method comprises the following steps of: (1) mixing feldspar and pyroxene particles according to a certain proportion, so that the mass fraction of feldspar is 50-70%, the mass fraction of pyroxene is 25-35%, the total mass fraction of feldspar and pyroxene is more than 85%, and the mass fraction of associated minerals is not more than 15%; (2) putting the mixture into a platinum crucible and heating and melting at high temperature to obtain a uniformsilicate melt; and (3) taking out the melt from the furnace, placing the melt in air and naturally cooling to obtain an amorphous silicate solid product, and crushing the solid to obtain the mineralfiber raw material.

Description

technical field [0001] The invention relates to a preparation method of mineral fiber raw material and the mineral fiber raw material obtained by the method. The mineral fiber raw material prepared by the method of the present invention can be used to produce mineral fibers with stable properties. Background technique [0002] Some minerals and rocks, such as diabase, dolomite, granite, basalt, limestone, etc., after high-temperature melting, the melt obtained has a certain viscosity, which is suitable for making fiber products through the drawing process. Moreover, rocks of specific composition, such as diabase, basalt, etc., can be made into continuous fibers under certain conditions. This type of continuous fiber has excellent performance in mechanics and electricity, and has been listed as the four major fibers for key development in my country together with glass fiber, carbon fiber and aramid fiber. [0003] In the production process of the current silicate continuou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/06C03B1/00
CPCC03B1/00C03C13/06
Inventor 刘昶江李红超杨春成姜乐涛
Owner 河北地质大学
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