Microporous fire-resistant thermal-insulation material and preparation process thereof

A thermal insulation material and fire-resistant technology, which is applied in the field of microporous refractory thermal insulation materials and their preparation, can solve the problems of short service life and poor thermal insulation performance, and achieve improved thermal insulation performance, good fire-resistant thermal insulation performance, and Good compressive strength and wear resistance

Inactive Publication Date: 2017-08-18
MAANSHAN RUNQI NEW MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the load-bearing structure of the kiln and the refractory and heat-insulating materials in direct contact with slag, furnace charge, molten metal and other parts have poor heat insulation performance, resulting in short service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] In this example, the proportion of ingredients used is: 5 parts of silica-alumina sol, 20 parts of expanded vermiculite powder, 4 parts of polystyrene particles, 2 parts of polyaluminum chloride, 10 parts of nano-sized silicon micropowder, 5 parts of nano-sized titanium dioxide powder parts, 4 parts of alumina hollow spheres, 8 parts of ceramic fibers, 2 parts of magnesium oxide, 20 parts of aluminum silicate fibers and 10 parts of alumina.

[0017] The preparation process of the present embodiment comprises the following steps:

[0018] A. Mix expanded vermiculite powder, polystyrene particles, polyaluminum chloride, and aluminum oxide hollow balls and add them to a grinder for grinding for 30 minutes to obtain mixture A;

[0019] B. Add silica-alumina sol, nano-scale silicon micropowder, nano-scale titanium dioxide powder, and ceramic fiber to mixture A. After mixing, add it to a mechanical stirring tank for stirring. The stirring tank speed is 3000 rpm, and the stirr...

Embodiment 2

[0023] In this example, the proportion of ingredients used is: 15 parts of silica-alumina sol, 40 parts of expanded vermiculite powder, 10 parts of polystyrene particles, 8 parts of polyaluminum chloride, 20 parts of nano-scale silicon micropowder, and 15 parts of nano-scale titanium dioxide powder. parts, 12 parts of alumina hollow spheres, 17 parts of ceramic fibers, 10 parts of magnesium oxide, 40 parts of aluminum silicate fibers and 20 parts of alumina.

[0024] The preparation process of the present embodiment comprises the following steps:

[0025] A. Mix expanded vermiculite powder, polystyrene particles, polyaluminum chloride, and aluminum oxide hollow balls and add them to a grinder for grinding for 30 minutes to obtain mixture A;

[0026] B. Add silica-alumina sol, nano-scale silicon micropowder, nano-scale titanium dioxide powder, and ceramic fiber to mixture A. After mixing, add it to a mechanical stirring tank for stirring. The stirring tank speed is 3000 rpm, an...

Embodiment 3

[0030] In this example, the proportion of ingredients used is: 7 parts of silica-alumina sol, 25 parts of expanded vermiculite powder, 5 parts of polystyrene particles, 3 parts of polyaluminum chloride, 12 parts of nano-scale silicon micropowder, and 6 parts of nano-scale titanium dioxide powder. parts, 5 parts of alumina hollow spheres, 10 parts of ceramic fibers, 3 parts of magnesium oxide, 25 parts of aluminum silicate fibers and 12 parts of alumina.

[0031] The preparation process of the present embodiment comprises the following steps:

[0032] A. Mix expanded vermiculite powder, polystyrene particles, polyaluminum chloride, and aluminum oxide hollow balls and add them to a grinder for grinding for 30 minutes to obtain mixture A;

[0033] B. Add silica-alumina sol, nano-scale silicon micropowder, nano-scale titanium dioxide powder, and ceramic fiber to mixture A. After mixing, add it to a mechanical stirring tank for stirring. The stirring tank speed is 3000 rpm, and the...

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PUM

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Abstract

The invention discloses a microporous fire-resistant thermal-insulation material and a preparation process thereof. The fire-resistant thermal-insulation material comprises the following components in parts by weight: silicon-aluminum sol 5-15 parts, expanded vermiculite powder 20-40 parts, polystyrene granules 4-10 parts, aluminium polychloride 2-8 parts, nano silica micro-powder 10-20 parts, nano titanium dioxide powder 5-15 parts, alumina hollow balls 4-12 parts, ceramic fibers 8-17 parts, magnesium oxide 2-10 parts, aluminum silicate fibers 20-40 parts and alumina 10-20 parts. The preparation process is simple, and the prepared material is good in fire-resisting and thermal-insulation property and good in pressure resistance and wear resistance.

Description

technical field [0001] The invention relates to the technical field of preparation of fire-resistant and heat-insulating materials, in particular to a microporous fire-resistant and heat-insulating material and a preparation process thereof. Background technique [0002] Heat-insulating refractory materials refer to refractory materials with high porosity, low bulk density and low thermal conductivity. Heat-insulating refractory materials are also called lightweight refractory materials. It includes heat-insulating refractory products, refractory fibers and refractory fiber products. [0003] Insulating refractory materials are characterized by high porosity, generally 40% to 85%; low bulk density, generally lower than 1.5g / cm3; low thermal conductivity, generally lower than 1.0W (m k). It is used as The heat insulation material of industrial kiln can reduce the heat loss of the furnace, save energy, and reduce the weight of thermal equipment; the heat insulation refractory ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B33/36C04B33/13
CPCC04B35/66C04B33/13C04B33/36C04B2235/3206C04B2235/3217C04B2235/3232C04B2235/3418C04B2235/428C04B2235/444C04B2235/48C04B2235/5216C04B2235/5228
Inventor 张伟施享
Owner MAANSHAN RUNQI NEW MATERIAL SCI & TECH
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