Rapid repairing material prepared from waste high-aluminum brick and preparation method thereof

A high-alumina brick and repair material technology, which is applied in the field of refractory materials and its preparation, can solve the problems of easy pulverization, high labor intensity, and affecting service life, and achieve the effects of high thermal strength, beautifying the environment, and reducing costs

Inactive Publication Date: 2015-10-07
鞍山市永恒特种耐火材料制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, when heating furnaces, hot blast stoves and other thermal equipment are quickly repaired, the commonly used repair material is ramming material, which is basically made of bauxite as the main material, supplemented by various additives and binders. The common disadvantages of its products are: : In the process of high temperature use, it is not resistant to erosion, and it is easy to pulverize and affect the service life. At the same time, the construction is cumbersome, the construction period is long, and the labor intensity is high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A quick repair material made of discarded high-alumina bricks, wherein the weight ratio of each component is as follows:

[0023] Abandoned high alumina bricks: 10

[0024] Zircon sand: 5

[0025] Bauxite: 20

[0026] Clay Powder: 10

[0027] Kyanite: 3

[0028] Compound Additives: 2

[0029] Compound binder: 15

[0030] Among them, the chemical indicators of the main components in the raw materials:

[0031] Abandoned high alumina brick AL 2 O 3 ≥65%, Fe 2 O 3 ≤0.3%, CaO≤0.2%;

[0032] Zircon sand ZrO 2 ≥33%;

[0033] Bauxite AL 2 O 3 ≥85%, Fe 2 O 3 ≤1.5%, CaO≤1.15%;

[0034] First Class Clay Powder AL 2 O 3 ≥45%, SiO 2 ≥28%;

[0035] Cyanite SiO 2 ≥28%.

[0036] The particle size of waste high alumina bricks is 0.075mm; the particle size of zircon sand is 2mm; the particle size of bauxite is 8mm; the clay powder is first-grade clay powder with a particle size of 0.03mm;

[0037] The proportion by weight of each component in the composite additi...

Embodiment 2

[0041] A quick repair material made of discarded high-alumina bricks, wherein the weight ratio of each component is as follows:

[0042] Abandoned high alumina bricks: 20

[0043] Zircon sand: 8

[0044] Bauxite: 30

[0045] Clay Powder: 18

[0046] Kyanite: 5

[0047] Compound Additives: 3

[0048] Compound binder: 18

[0049] The particle size of waste high alumina bricks is 4mm; the particle size of zircon sand is 5mm; the particle size of bauxite is 10mm; the particle size of clay powder is 0.044mm; the particle size of kyanite is 0.044mm.

[0050] The proportion by weight of each component in the composite additive is as follows: aluminum powder 2; calcium aluminate cement 3; silica micropowder 1; anti-cracking fiber 1; minute.

[0051] The proportion by weight of each component in the composite binder is as follows: phosphoric acid with a concentration of 85% 50; aluminum hydroxide 20; water 10; boron crystal 5; The kettle was heated to 100°C.

[0052] Using the...

Embodiment 3

[0054] A quick repair material made of discarded high-alumina bricks, wherein the weight ratio of each component is as follows:

[0055] Abandoned high alumina bricks: 15

[0056] Zircon sand: 7

[0057] Bauxite: 26

[0058] Clay Powder: 16

[0059] Kyanite: 4

[0060] Compound additive: 2.5

[0061] Compound binder: 17

[0062] The particle size of waste high alumina bricks is 2mm; the particle size of zircon sand is 3mm; the particle size of bauxite is 8mm; the particle size of clay powder is 0.02mm; the particle size of kyanite is 0.02mm.

[0063] The proportion by weight of each component in the composite additive is as follows: aluminum powder 1.5; calcium aluminate cement 2.5; silica micropowder 1; anti-cracking fiber 0.5; minute.

[0064] The proportion by weight of each component in the composite binder is as follows: phosphoric acid with a concentration of 85% 45; aluminum hydroxide 15; water 8; boron crystal 4; The kettle was heated to 100°C.

[0065] Using ...

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Abstract

The invention relates to a rapid repairing material prepared from a waste high-aluminum brick and a preparation method thereof. The rapid repairing material comprises, by weight, 10-20 parts of waste high-aluminum brick, 5-8 parts of zirconium silicate sand, 20-30 parts of bauxite, 10-18 parts of clay powder, 3-5 parts of kyanite, 2-3 parts of a composite additive and 15-18 parts of a composite binder. The rapid repairing material prepared from a waste high-aluminum brick can replace a high-cost ramming material, realizes recycle of a waste high-aluminum brick, beautifies the environment and reduces a cost. The rapid repairing material is an ideal refractory material for fast first-aid repair of steel rolling and ironmaking thermal furnaces and has the characteristics of high thermal state strength, quenching and quick heating resistance, washing resistance and no baking. Compared with the existing first-aid repair material, the rapid repairing material can shorten a production period by 5-8 days and create large benefits for a client.

Description

technical field [0001] The invention relates to a quick repair material made of discarded high-alumina bricks, in particular to a refractory material and a preparation method for quick repair of a steel rolling heating furnace and a hot blast furnace. Background technique [0002] The heating furnace is a kind of equipment for reheating steel by the rolling system. Because the heating furnace works in the environment of high temperature and frequent temperature rise and fall, it has high requirements on the refractory material of the lining. It not only requires high temperature resistance, but also requires good thermal shock resistance and anti-scour performance. Zirconium sealant is made of anhydrous binder, which has the characteristics of erosion resistance, corrosion resistance, and no reaction with acid refractories and alkali refractories. It has always been the best lining material for repairing heating furnaces and hot blast furnaces at home and abroad. [0003] A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 王东马桂红
Owner 鞍山市永恒特种耐火材料制造有限公司
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