High-infrared reflectivity high-aluminum light fire-resistant thermal insulating material and preparation method thereof

An infrared reflection, refractory thermal insulation technology, applied in the field of high-aluminum lightweight refractory thermal insulation materials, can solve the problems of weakening the thermal insulation effect of the material, increasing the thermal conductivity, reducing the strength of the material, etc. The effect of reducing high temperature thermal conductivity

Inactive Publication Date: 2015-09-30
苏安能建筑新材料(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the existing preparation methods of lightweight refractory and thermal insulation materials have their own advantages, their disadvantages are that the lower bulk density often leads to the reduction of material strength; The rapid increase of the use temperature weakens the thermal insulation effect of the material at high temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A high-infrared reflectivity high-aluminum light-weight refractory and thermal insulation material and a preparation method thereof. The concrete steps of preparation method of the present invention are:

[0030] In the first step, 20~30wt% of anhydrous potassium carbonate, 60~70wt% of titanium dioxide and 8~10wt% of glucose powder were mixed evenly, pressed and formed under the condition of 50~80MPa, and then in an argon atmosphere and 1000~ Heat treatment at 1200°C for 1 to 2 hours to obtain a heat treatment material. Then the heat-treated material is crushed, ground, and sieved to obtain material A with a particle size of 0.088-1 mm and material B with a particle size of less than 0.088 mm.

[0031] In the second step, with 20~30wt% bauxite particles, 15~25wt% bauxite fine powder, 10~15wt% described A material, 10~15wt% described B material, 10~15wt% oxidized Aluminum fine powder and 5-10wt% of anhydrous potassium carbonate are used as a mixture, and 2-5wt% of wate...

Embodiment 2

[0034] A high-infrared reflectivity high-aluminum light-weight refractory and thermal insulation material and a preparation method thereof. The concrete steps of preparation method of the present invention are:

[0035] The first step is to mix 30~40wt% potassium sulfate, 50~60wt% metatitanic acid and 8~10wt% glucose powder evenly, press and form under the condition of 80~100MPa, and then press the mold under nitrogen atmosphere and 800~1000℃ Heat treatment under conditions for 0.5 to 1 hour to obtain a heat treatment material. Then the heat-treated material is crushed, ground, and sieved to obtain material A with a particle size of 0.088-1 mm and material B with a particle size of less than 0.088 mm.

[0036] In the second step, with 30~40wt% of bauxite particles, 10~15wt% of bauxite fine powder, 10~15wt% of the A material, 10~15wt% of the B material, 10~15wt% of hydrogen Alumina fine powder and 5-10wt% potassium sulfate are used as a mixture, and 5-8wt% of water is added t...

Embodiment 3

[0039] A high-infrared reflectivity high-aluminum light-weight refractory and thermal insulation material and a preparation method thereof. The concrete steps of preparation method of the present invention are:

[0040] In the first step, 25~35wt% potassium chloride, 60~70wt% metatitanic acid and 5~8wt% industrial dextrin powder are mixed uniformly, pressed and molded under the condition of 50~80MPa, and then in argon atmosphere and Heat treatment at 800-1000°C for 1-2 hours to obtain heat-treated material. Then the heat-treated material is crushed, ground, and sieved to obtain material A with a particle size of 0.088-1 mm and material B with a particle size of less than 0.088 mm.

[0041]In the second step, with 30~40wt% bauxite particles, 15~25wt% bauxite fine powder, 5~10wt% described A material, 10~15wt% described B material, 10~15wt% hydrogen Fine alumina powder and 2-5wt% potassium chloride are used as a mixture, and 2-5wt% of water is added to the mixture, stirred for...

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PUM

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Abstract

The invention relates to a high-infrared reflectivity high-aluminum light fire-resistant thermal insulating material and a preparation method thereof. According to the technical scheme of the High-infrared reflectivity high-aluminum light fire-resistant thermal insulating material and the preparation method thereof, 20-40 wt% of potassic raw material, 50-70wt% of titaniferous raw material and 5-10 wt% of binding agents are uniformly mixed, grinding is conducted after molding and thermal treatment are conducted, and A material with particle size ranging from 0.088-1 mm and B material with particle size smaller than 0.088 mm are obtained. 20-40 wt% of alumina particles, 10-25 wt% of alumina fine powders, 5-15 wt% of A material, 5-15 wt% of B material, 5-15 wt% of aluminiferous raw material and 2-10 wt% of potassic raw material are used as mixture, water containing 2-8 wt% of the micture are added, a green body is made by stirring, drying is conducted, cooling is conducted after the thermal treatment is conducted, the green body is soaked with water, then drying is conducted, and the high-infrared reflectivity high-aluminum light fire-resistant thermal insulating material is obtained. The high-infrared reflectivity high-aluminum light fire-resistant thermal insulating material has the advantages that the volume density is low, the compression strength is high, and the high-temperature heat conductivity coefficient is low. The high-infrared reflectivity high-aluminum light fire-resistant thermal insulating material can also be applied to the heat insulation field within 1300 DEG C for a long time.

Description

technical field [0001] The invention belongs to the technical field of high-aluminum light-weight refractory and thermal insulation materials. In particular, it relates to a high-infrared reflectance high-aluminum lightweight refractory heat-insulating material and a preparation method thereof. Background technique [0002] Thermal insulation is one of the important measures to save energy and ensure sustainable economic development. The development of high-temperature industry has put forward higher requirements for thermal insulation materials, such as high efficiency, energy saving, high strength, low conductivity and waterproof, etc. For this reason, people have been seeking and researching materials with low thermal conductivity, high infrared reflectivity and microporous A new thermal insulation material for high temperature industry. [0003] At present, the preparation methods of lightweight refractory and thermal insulation materials mainly include foam method, lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 王周福刘江波刘浩王玺堂马妍
Owner 苏安能建筑新材料(苏州)有限公司
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