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A kind of preparation method of dyed serpentine refractory fiber

A technology of refractory fiber and serpentine, which is applied in the field of refractory fiber, can solve the problems of insufficient preparation of dyed refractory fiber, and achieve the effects of good structural stability, high dissolution rate constant, and high color fastness

Active Publication Date: 2019-04-16
CHANGXING MENGYOU REFRACTORIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the insufficient preparation of existing dyed refractory fibers, the invention provides a method for preparing dyed serpentine refractory fibers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Take 70wt% of serpentine, 20wt% of basalt, 5wt% of zircon and 5wt% of graphite, blend, grind to 250 mesh and hold at 500°C for 3 hours to obtain the main raw material. The cobalt-iron green is ground to 400 mesh by a mechanical ball mill to obtain cobalt-iron green powder. Put the main raw material into the melting furnace and heat it to 1500°C until it is completely melted to obtain a molten liquid. Impurities in the molten liquid are then filtered, and the filtrate flows into a stirred tank at 1900° C. and continuously stirred to obtain a spinning solution. The spinning solution flows out from the outlet of the stirred tank and enters the centrifugal head. points), thrown out through the pores (0.2 mm in diameter) of the centrifugal head, the pores vertically spray industrial nitrogen containing cobalt-iron green powder, the concentration of cobalt-iron green powder in the industrial nitrogen is 500mg / L, the temperature of industrial nitrogen is 150°C, and the speed ...

Embodiment 2

[0038] 80wt% serpentine, 15wt% basalt, 3wt% zircon and 2wt% graphite were weighed, blended, crushed to 350 mesh and kept at 600°C for 4 hours to obtain raw material powder. Cobalt chrome blue powder was obtained by grinding the cobalt chromium blue to 600 mesh with a mechanical ball mill. The raw material powder is put into a melting furnace and heated to 1700°C until it is completely melted to obtain a molten liquid. Impurities in the molten liquid are then filtered, and the filtrate flows into a stirred tank at 2100° C. and continuously stirred to obtain a spinning solution. The spinning solution flows out from the discharge port of the stirred tank and enters the centrifugal head. ), thrown out through the pores (0.4 mm in diameter) of the centrifugal head, the vertical direction of the pores sprays industrial nitrogen containing cobalt chromium blue powder, the concentration of cobalt chromium blue powder in industrial nitrogen is 800mg / L, and the temperature of industrial...

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Abstract

The invention discloses a preparation method for a dyed serpentine refractory fiber, wherein with serpentine, basalt, zircon and graphite as raw materials, the preparation method comprises the following preparation steps: 1) raw material preparation; 2) colorant powder preparation; 3) melting; 4) filtration; and 5) refractory fiber collection. Through centrifugal thread throwing, under assisting of industrial nitrogen gas, a colorant powder is adhered, melt and dispersed to the surface of a spinning solution, and along with curing of the spinning solution, the dyed serpentine refractory fiber is prepared; the prepared dyed serpentine refractory fiber has the characteristics of uniform dyeing, high color fastness, less structural defect and high dissolution rate constant.

Description

technical field [0001] The invention belongs to the field of refractory fibers, in particular to a preparation method of dyed serpentine refractory fibers. Background technique [0002] Refractory fibers are mostly used to replace refractory bricks in high-temperature fields such as heat treatment furnaces and heating furnaces. However, since the 1990s, with the development and promotion of new products, refractory materials have gradually entered daily life. Patent CN1229864A discloses a non-combustible blended yarn and its application. Aluminosilicate ceramic refractory fiber and glass fiber or high silica fiber are blended and woven to obtain a fabric, and the obtained fabric has good non-combustibility. Patent CN1253645C discloses a kind of fireproof rolling shutter, takes refractory fiber blanket as curtain core, has played important effect for the fire prevention of large-scale public place, warehouse. With the improvement of people's safety awareness, the application...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66C04B35/16C04B35/622C04B35/653D01F9/08
CPCC04B35/16C04B35/6224C04B35/653C04B35/66C04B2235/3248C04B2235/3427C04B2235/425D01F9/08
Inventor 佘玉明
Owner CHANGXING MENGYOU REFRACTORIES