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Environmentally friendly bio-soluble refractory fibre and production process thereof

A production process, soluble technology, applied in the direction of fiber processing, filament/thread forming, artificial filament of inorganic raw materials, etc., to achieve the effects of less harm to the human body, good fire resistance, and improved dissolution rate

Inactive Publication Date: 2010-01-06
MORGAN KAILONG (JINGMEN) THERMAL CERAMICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of environment-friendly refractory bio-soluble fiber and its production process in view of the deficiency that my country cannot produce bio-soluble fiber at present.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] A: Raw material ratio: mix 60 kg of silicon dioxide, 30 kg of calcium oxide, and 15 kg of magnesium oxide (it is required that the alumina in the raw material is less than 1, and the content of other impurities is not more than 0.8%);

[0013] B: Put the prepared raw materials into the resistance furnace, and melt them into liquid at a high temperature of 1500 ℃ ~ 1800 ℃;

[0014] C: The high-temperature molten liquid with a stream temperature of 1400°C to 1500°C is poured onto the roller head of the spinning machine rotating at high speed, and the high-temperature molten liquid is centrifugally spun into fibers by centrifugal force;

[0015] Solubility of refractory bio-soluble fiber (SW607 super 607 product) made by this process: 150ng / cm2.h, semi-disappearance period: 7 days, permanent line change 1000℃x24h: 0.9, thermal conductivity w / m.k average 500℃ : 0.10. The fiber can be used to make refractory products such as environmentally friendly refractory fiber blanket...

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PUM

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Abstract

The invention relates to an environmentally friendly bio-soluble refractory fibre and a production process thereof; the fibre comprises the following components according to the parts by weight: 58-76 parts of silicon dioxide, 24-38 parts of calcium oxide and 4-20 parts of magnesium oxide. The production process comprises the following steps: A. resistance furnace melting: silicon dioxide, calcium oxide and magnesium oxide are placed in a resistance furnace to melt to liquid at a raw material melting temperature of 1500-1800 DEG C; B. thread throwing: throwing the molten liquid to threads with high speed whirling rollers at a fiber forming temperature of 1400-1500 DEG C. The production process has the advantage that the process has little harm to human body and can effectively prevent occupational diseases such as silicosis and the like or canceration which is directly caused.

Description

technical field [0001] The invention relates to the field of fire-resistant and heat-insulating materials, in particular to an environment-friendly fire-resistant bio-soluble fiber and a production process. Background technique [0002] The traditional refractory fiber is SiO2-Al2O3 series ceramic fiber. Because it is produced by spinning or blowing method, it is easy to produce a lot of fine fibers and dust in the process of production and use. These dusts contain 30-60% acidic SiO2 ( PH 7~8), once these fine fibers and dust are inhaled deep into the human lungs, it will take a long time to gradually partially dissolve, and the dissolution rate is ≤7.6ng / cm 2 .h, the half-disappearance period is above 89 days. Therefore, it poses a potential threat to human health, causing occupational diseases such as silicosis or directly causing cancer. The International Agency for Research on Cancer (IARC) classifies traditional refractory fibers as possible carcinogens according to th...

Claims

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Application Information

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IPC IPC(8): D01F9/08D01D5/00C04B35/66
Inventor 陈双喜冯德喜王德海方传军吴勇
Owner MORGAN KAILONG (JINGMEN) THERMAL CERAMICS CO LTD
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