A kind of preparation method of basalt fiber with through holes

Abstract

The invention discloses a preparation method of basalt fiber with through holes, which is a kind of basalt ore with through-hole structure obtained through the process steps of screening, crushing, melting, filtering, spinning, dissolving, drying, cooling and winding. The method of the basalt fiber, the preparation method has the advantages of low production cost, simple production process, easy access to raw materials, suitable for large-scale industrial production, and is conducive to the wide application and promotion of the basalt fiber.

Description

technical field

[0001] The invention relates to the field of basalt fiber materials, in particular to a method for preparing basalt fiber with through holes. Background technique

[0002] Basalt fiber is a new type of inorganic environmentally friendly green high-performance fiber material, and it is one of the four high-performance fibers that will be developed in my country in the future. The basalt rock material composed of basalt is melted at high temperature and then prepared by spinning process. Basalt continuous fiber not only has good stability, but also has various excellent properties such as electrical insulation, corrosion resistance, combustion resistance, and high temperature resistance. Moreover, the production process of basalt fiber produces less waste and less environmental pollution. It can be directly transferred to the ecological environment without any harm, so it is a veritable green and environmental protection material. Basalt continuous fiber has b...

Examples

Embodiment 1

[0034] 1) Immerse the basalt ore in the pool, wash it, remove the impurities that may be attached to the surface, and then take it out to dry;

[0035] 2) The dried basalt ore obtained in step 1) is crushed with a pulverizer, and the fineness is 2.0 mm, to obtain basalt ore powder;

[0036] 3) Add the basalt powder obtained in step 2) into the kiln, and raise the temperature to 1200°C to melt the basalt powder into a liquid state;

[0037] 4) Filtrating the molten basalt obtained in step 3) at high temperature to remove unmelted basalt powder and impurities;

[0038]5) Introduce the filtered molten basalt obtained in step 4) and the same molten sodium chloride into the coaxial electrospinning machine at the same time, using an outer needle with a diameter of 1.5 mm and an inner needle with a diameter of 0.7 mm. The distance between the inner tip and the outer tip is 0.42mm, and the spinning voltage is 10KV. Coaxial electrospinning is performed to obtain basalt fibrils with a ...

Embodiment 2

[0045] 1) Immerse the basalt ore in the pool, wash it, remove the impurities that may be attached to the surface, and then take it out to dry;

[0046] 2) The dried basalt ore obtained in step 1) is crushed with a pulverizer to obtain basalt ore powder with a fineness of 4.0mm;

[0047] 3) Add the basalt powder obtained in step 2) into the kiln, and raise the temperature to 1550°C to melt the basalt powder into a liquid state;

[0048] 4) Filtrating the molten basalt obtained in step 3) at high temperature to remove unmelted basalt powder and impurities;

[0049] 5) Introduce the filtered molten basalt obtained in step 4) and the same molten potassium chloride into the coaxial electrospinning machine at the same time, using an outer needle with a diameter of 2.5 mm and an inner needle with a diameter of 1.2 mm. The distance between the inner tip and the outer tip is 0.72mm, and the spinning voltage is 15KV. Coaxial electrospinning is performed to obtain basalt fibrils with a ...

Embodiment 3

[0056] 1) Immerse the basalt ore in the pool, wash it, remove the impurities that may be attached to the surface, and then take it out to dry;

[0057] 2) The dried basalt ore obtained in step 1) is crushed with a pulverizer to obtain basalt ore powder with a fineness of 3.0mm;

[0058] 3) Add the basalt powder obtained in step 2) into the kiln, and raise the temperature to 1400°C to melt the basalt powder into a liquid state;

[0059] 4) Filtrating the molten basalt obtained in step 3) at high temperature to remove unmelted basalt powder and impurities;

[0060] 5) Introduce the filtered molten basalt obtained in step 4) and the same molten sodium sulfate into the coaxial electrospinning machine at the same time. A medium-carbon ferrochrome needle with a distance of 0.6mm from the needle tip to the outer needle tip, coaxial electrospinning at a spinning voltage of 13KV to obtain basalt fibrils with a double-layer structure, in which the outer layer is molten basalt and the i...

technical field

[0001] The invention relates to the field of basalt fiber materials, in particular to a method for preparing basalt fiber with through holes. Background technique

[0002] Basalt fiber is a new type of inorganic environmentally friendly green high-performance fiber material, and it is one of the four high-performance fibers that will be developed in my country in the future. The basalt rock material composed of basalt is melted at high temperature and then prepared by spinning process. Basalt continuous fiber not only has good stability, but also has various excellent properties such as electrical insulation, corrosion resistance, combustion resistance, and high temperature resistance. Moreover, the production process of basalt fiber produces less waste and less environmental pollution. It can be directly transferred to the ecological environment without any harm, so it is a veritable green and environmental protection material. Basalt continuous fiber has b...

Examples

Embodiment 1

[0034] 1) Immerse the basalt ore in the pool, wash it, remove the impurities that may be attached to the surface, and then take it out to dry;

[0035] 2) The dried basalt ore obtained in step 1) is crushed with a pulverizer, and the fineness is 2.0 mm, to obtain basalt ore powder;

[0036] 3) Add the basalt powder obtained in step 2) into the kiln, and raise the temperature to 1200°C to melt the basalt powder into a liquid state;

[0037] 4) Filtrating the molten basalt obtained in step 3) at high temperature to remove unmelted basalt powder and impurities;

[0038]5) Introduce the filtered molten basalt obtained in step 4) and the same molten sodium chloride into the coaxial electrospinning machine at the same time, using an outer needle with a diameter of 1.5 mm and an inner needle with a diameter of 0.7 mm. The distance between the inner tip and the outer tip is 0.42mm, and the spinning voltage is 10KV. Coaxial electrospinning is performed to obtain basalt fibrils with a ...

Embodiment 2

[0045] 1) Immerse the basalt ore in the pool, wash it, remove the impurities that may be attached to the surface, and then take it out to dry;

[0046] 2) The dried basalt ore obtained in step 1) is crushed with a pulverizer to obtain basalt ore powder with a fineness of 4.0mm;

[0047] 3) Add the basalt powder obtained in step 2) into the kiln, and raise the temperature to 1550°C to melt the basalt powder into a liquid state;

[0048] 4) Filtrating the molten basalt obtained in step 3) at high temperature to remove unmelted basalt powder and impurities;

[0049] 5) Introduce the filtered molten basalt obtained in step 4) and the same molten potassium chloride into the coaxial electrospinning machine at the same time, using an outer needle with a diameter of 2.5 mm and an inner needle with a diameter of 1.2 mm. The distance between the inner tip and the outer tip is 0.72mm, and the spinning voltage is 15KV. Coaxial electrospinning is performed to obtain basalt fibrils with a ...

Embodiment 3

[0056] 1) Immerse the basalt ore in the pool, wash it, remove the impurities that may be attached to the surface, and then take it out to dry;

[0057] 2) The dried basalt ore obtained in step 1) is crushed with a pulverizer to obtain basalt ore powder with a fineness of 3.0mm;

[0058] 3) Add the basalt powder obtained in step 2) into the kiln, and raise the temperature to 1400°C to melt the basalt powder into a liquid state;

[0059] 4) Filtrating the molten basalt obtained in step 3) at high temperature to remove unmelted basalt powder and impurities;

[0060] 5) Introduce the filtered molten basalt obtained in step 4) and the same molten sodium sulfate into the coaxial electrospinning machine at the same time. A medium-carbon ferrochrome needle with a distance of 0.6mm from the needle tip to the outer needle tip, coaxial electrospinning at a spinning voltage of 13KV to obtain basalt fibrils with a double-layer structure, in which the outer layer is molten basalt and the i...

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