Moisture-proof refractory fiber spray coating and spraying method thereof

A refractory fiber and coating technology, applied in the field of refractory materials, can solve the problems of easy clogging of spraying equipment, single type of fiber, unreasonable fiber gradation, etc., and achieve the effect of improving strength and energy saving, reducing thermal conductivity, and improving moisture resistance. Effect

Active Publication Date: 2022-05-31
淄博市产品质量检验研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]Traditional refractory fiber spray coatings often have the following problems: 1. The types of fibers used are single, the fiber gradation is unreasonable, the fluidity is not good during the spraying process, and it is easy to block Spraying equipment affects construction efficiency; 2. The moisture resistance of existing refractory fiber spray coatings is not good enough, and problems such as bubbling, cracking, and mildew are prone to occur

Method used

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  • Moisture-proof refractory fiber spray coating and spraying method thereof

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Effect test

Embodiment 1

[0039] The moisture-proof refractory fiber spray coating is composed of the following components:

[0040] Refractory fiber 37wt.%; wood fiber 8wt.%; deionized water 25wt.%; inorganic binder 13wt.%; organic binder 0.6wt.%; inorganic powder 8wt.%; alumina hollow ball 4wt.%; Cr 2 o 3 Micropowder 4.4wt.%.

[0041] Among them, the refractory fiber is high alumina fiber; the inorganic binder is silica sol; the organic binder is polyacrylamide; the inorganic powder is a mixture of kaolin and silica powder; the mass ratio is 8:1.5; the particle size of the inorganic powder is 65 μm; The particle size of alumina hollow spheres is 0.4mm; Cr 2 o 3 The particle size of the fine powder is 3 μm.

[0042] The spraying method of described moisture-proof type refractory fiber spray coating is carried out according to the following steps:

[0043] S1: Put the refractory fiber and wood fiber into the fiber grinder and process them into short fibers with lengths of 15mm, 8mm and 2mm respect...

Embodiment 2

[0051] The moisture-proof refractory fiber spray coating is composed of the following components:

[0052] Refractory fiber 40wt.%; wood fiber 7wt.%; deionized water 28wt.%; inorganic binder 11wt.%; organic binder 0.3wt.%; inorganic powder 6wt.%; alumina hollow ball 4.2wt.%; Cr 2 o 3 Micropowder 3.5wt.%.

[0053] Among them, the refractory fiber is a mixture of high alumina fiber and glass fiber, and the mass ratio of the two is 2:1; the inorganic binder is sodium silicate; the organic binder is polyacrylamide; the inorganic powder is a mixture of kaolin and silica powder; The mass ratio is 9:2; the particle size of the inorganic powder is 70 μm; the particle size of the alumina hollow sphere is 0.2 mm; Cr 2 o 3 The particle size of the fine powder is 2.8 μm.

[0054] The spraying method of described moisture-proof type refractory fiber spray coating is carried out according to the following steps:

[0055] S1: Put the refractory fiber and wood fiber into the fiber grind...

Embodiment 3

[0063] The moisture-proof refractory fiber spray coating is composed of the following components:

[0064] Refractory fiber 43wt.%; wood fiber 6wt.%; deionized water 27wt.%; inorganic binder 12wt.%; organic binder 0.8wt.%; inorganic powder 3wt.%; alumina hollow ball 6wt.%; Cr 2 o 3 Micropowder 2.2wt.%.

[0065] Among them, the refractory fiber is zirconium-containing fiber; the inorganic binder is silica sol; the organic binder is acrylic resin; the inorganic powder is a mixture of kaolin and silicon micropowder; the mass ratio is 10:1; the particle size of the inorganic powder is 80 μm; The particle size of the aluminum hollow sphere is 0.5mm; Cr 2 o 3 The particle size of the fine powder is 4 μm.

[0066] The spraying method of described moisture-proof type refractory fiber spray coating is carried out according to the following steps:

[0067] S1: Put the refractory fiber and wood fiber into the fiber grinder and process them into short fibers with lengths of 10mm, 5mm...

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Abstract

The invention belongs to the technical field of refractory materials, and particularly relates to a moisture-proof refractory fiber spray coating and a spraying method thereof. The coating is prepared from the following raw materials in percentage by mass: 25-50 wt.% of refractory fibers; 6 to 10 wt.% of wood fiber; 20 to 30 wt.% of water; 10 to 15 wt.% of an inorganic binder; 0.1 to 1 wt.% of an organic binder; 3-10 wt.% of an inorganic powder material; 1-6 wt.% of alumina hollow spheres; and 2 to 6 wt.% of Cr2O3 micro powder. The spraying method comprises the following steps: (1) processing the refractory fibers and the wood fibers into short fibers, soaking the short fibers in the moisture-proof liquid, and drying the short fibers; (2) putting the dried short fibers into a stirrer, adding other raw materials, and stirring into uniform slurry; and (3) adding the slurry into a spraying machine, and spraying to a required thickness. The refractory fiber spray coating disclosed by the invention is good in moisture resistance, low in heat conductivity coefficient, reasonable in fiber gradation, good in fluidity and high in construction efficiency.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a moisture-proof refractory fiber spray coating and a spray coating method thereof. Background technique [0002] Energy issues have attracted widespread attention from all over the world. On the one hand, energy consumption is increasing year by year, and on the other hand, energy utilization is still very low. This contradiction is particularly prominent in our country. Refractory fiber is also called ceramic fiber, which belongs to fibrous heat-insulating refractory material. It has the characteristics of general fiber, and has high temperature resistance and corrosion resistance that general fiber does not have. The traditional construction technology of refractory fiber mainly refers to the construction technology of refractory fiber products. It adopts pasting, splicing and other technologies and techniques for construction. The construction is diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/18C09D7/65C09D7/61B05D1/36B05D3/10
CPCC09D1/00C09D5/18C09D7/65C09D7/70C09D7/61B05D1/36B05D3/107
Inventor 赵维平张青崔兴志赵璇
Owner 淄博市产品质量检验研究院
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