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Compressive and fireproof insulating brick and preparation method thereof

A technology of refractory insulation bricks and refractory clay, which is applied in the field of refractory materials, can solve the problems of low compressive strength, short service life, poor refractoriness, etc., and achieve the effects of high compressive strength, increased strength and good weather resistance

Inactive Publication Date: 2017-11-03
HEFEI FANTENG ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the refractory bricks on the market have problems such as low compressive strength and poor fire resistance. They are easily damaged during use and have a short service life.

Method used

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  • Compressive and fireproof insulating brick and preparation method thereof
  • Compressive and fireproof insulating brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A compression-resistant refractory insulation brick prepared from the following raw materials in parts by weight: 30 parts of corundum mullite, 15 parts of quartz sand, 30 parts of expanded perlite, 12 parts of vermiculite, 5 parts of silicon carbide micropowder, floating beads 6 parts, 3.5 parts of silica micropowder, 5 parts of titanium dioxide, 7 parts of refractory clay, 1 part of foaming agent and 50 parts of water.

[0026] Wherein, the floating beads are composed of silicon dioxide and aluminum oxide in a mass ratio of 3:1.

[0027] Wherein, the mass percentage of aluminum oxide in the refractory clay is 40%.

[0028] Wherein, the foaming agent is one of sodium carbonate, magnesium carbonate, sodium bicarbonate and carbon powder.

[0029] A preparation method of a compression-resistant refractory insulation brick, comprising the following steps:

[0030] (1) Grind corundum mullite, quartz sand, expanded perlite, vermiculite, silicon carbide micropowder, floatin...

Embodiment 2

[0038] A compression-resistant refractory insulation brick prepared from the following raw materials in parts by weight: 20 parts of corundum mullite, 10 parts of quartz sand, 25 parts of expanded perlite, 8 parts of vermiculite, 2 parts of silicon carbide micropowder, floating beads 3 parts, 1 part of silica micropowder, 2 parts of titanium dioxide, 4 parts of refractory clay, 0.5 parts of foaming agent and 40 parts of water.

[0039] Wherein, the floating beads are composed of silicon dioxide and aluminum oxide in a mass ratio of 2:1.

[0040] Wherein, the mass percentage of aluminum oxide in the refractory clay is 30%.

[0041] Wherein, the foaming agent is one of sodium carbonate, magnesium carbonate, sodium bicarbonate and carbon powder.

[0042] A preparation method of a compression-resistant refractory insulation brick, comprising the following steps:

[0043] (1) Grind corundum mullite, quartz sand, expanded perlite, vermiculite, silicon carbide micropowder, floating...

Embodiment 3

[0051] A compression-resistant refractory insulation brick prepared from the following raw materials in parts by weight: 40 parts of corundum mullite, 20 parts of quartz sand, 35 parts of expanded perlite, 15 parts of vermiculite, 8 parts of silicon carbide micropowder, floating beads 10 parts, 6 parts of silica micropowder, 8 parts of titanium dioxide, 10 parts of refractory clay, 1.5 parts of foaming agent and 60 parts of water.

[0052] Wherein, the floating beads are composed of silicon dioxide and aluminum oxide in a mass ratio of 4:1.

[0053] Wherein, the mass percentage of aluminum oxide in the refractory clay is 50%.

[0054] Wherein, the foaming agent is one of sodium carbonate, magnesium carbonate, sodium bicarbonate and carbon powder.

[0055] A preparation method of a compression-resistant refractory insulation brick, comprising the following steps:

[0056] (1) Grind corundum mullite, quartz sand, expanded perlite, vermiculite, silicon carbide micropowder, floa...

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Abstract

The invention discloses a compressive and fireproof insulating brick and a preparation method of the insulating brick. The insulating brick comprises the following raw materials: corundum mullite, quartz sand, expanded perlite, vermiculite, silicon carbide micropowder, floating beads, silica micropowder, titanium dioxide, fireproof clay, a foaming agent and water. The preparation method of the insulating brick comprises the steps of (1) grinding the raw materials, (2) adding the water, performing uniform stirring, performing heating to be 1200-1400 DEG C, and performing insulation for 3-5h, (3) performing natural cooling, adding the foaming agent, performing uniform stirring, performing pouring into a mold, and performing insulation for 1-3h at 700-800 DEG C, and (4) performing demolding, drying and heating to obtain the compressive and fireproof insulating brick. The compressive and fireproof insulating brick has the characteristics of high compressive strength, low heat conductivity coefficient, good insulating property, excellent fireproof property, good weather resistance and the like.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a compression-resistant refractory insulation brick and a preparation method thereof. Background technique [0002] Refractory bricks are refractory materials with a certain shape and size made of refractory clay or other refractory raw materials, light yellow or brown, resistant to high temperatures of 1580°C-1770°C, and are mainly used for building smelting furnaces. According to the preparation process, it can be divided into fired bricks, unfired bricks, electric fused bricks, refractory and heat-insulating bricks; according to the shape and size, it can be divided into standard bricks, ordinary bricks, special bricks, etc. Refractory bricks can be used as high-temperature building materials and structural materials for construction kilns and various thermal equipment, and can withstand various physical and chemical changes and mechanical actions at high temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/185C04B35/16C04B35/622C04B35/63
CPCC04B35/66C04B35/16C04B35/185C04B35/622C04B35/6303C04B2235/3217C04B2235/3232C04B2235/3418C04B2235/3427C04B2235/3463C04B2235/349C04B2235/3826C04B2235/96C04B2235/9607
Inventor 李丹丹
Owner HEFEI FANTENG ENVIRONMENTAL PROTECTION TECH CO LTD
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