High-wear-resistance red Guimo brick and preparation technique thereof

A silicon mullite brick and a preparation process technology, applied in the field of refractory materials, can solve the problems of insufficient bonding strength, incomplete development of mullite crystals, wear resistance, high temperature resistance and thermal shock resistance, etc.

Active Publication Date: 2014-06-04
JIANGSU SHUNXING REFRACTORY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary silica-mollite bricks are made of common bauxite raw materials and silicon carbide in the process of pressing, drying and firing refractory bricks. The bonding strength is not enough,

Method used

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  • High-wear-resistance red Guimo brick and preparation technique thereof
  • High-wear-resistance red Guimo brick and preparation technique thereof
  • High-wear-resistance red Guimo brick and preparation technique thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A high wear-resistant silica molybdenum brick is prepared from the following components in weight percent:

[0020]

[0021] Wherein, described bauxite clinker is Al 2 o 3 The weight percentage is 88% special-grade bauxite clinker; the described silicon carbide fine powder is silicon carbide fine powder with a SiC weight percentage of 95%; the described fused white corundum powder is Al 2 o 3 The electric fused white corundum powder that weight percentage is 99.3%; Described andalusite powder is Al 2 o 3 The andalusite powder that weight percent composition is 59%; Described bonding fire clay is Al 2 o 3 The weight percentage is 40% combined fire clay.

[0022] The above-mentioned raw materials are weighed according to the proportion, then put into the forced mixer and mixed well, and kneaded to make mud; use a friction brick press to press the mud under a pressure of 650KN to obtain adobe; the formed adobe is dried Dry in the kiln at 150°C for 15 hours to rem...

Embodiment 2

[0025] A high wear-resistant silica molybdenum brick is prepared from the following components in weight percent:

[0026]

[0027] Wherein, described bauxite clinker is Al 2 o 3 The weight percentage is 89% special-grade bauxite clinker; the described silicon carbide fine powder is silicon carbide fine powder with a SiC weight percentage of 94%; the described fused white corundum powder is Al 2 o 3 The electric fused white corundum powder that weight percentage is 99.4%; Described andalusite powder is Al 2 o 3 The andalusite powder that weight percent composition is 58.6%; Described bonding fire clay is Al 2 o 3 The weight percentage is 38.5% combined fire clay.

[0028] The above-mentioned raw materials are weighed according to the proportion, then put into the forced mixer and mixed well, and kneaded to make mud; use a friction brick press to press the mud under a pressure of 650KN to obtain adobe; the formed adobe is dried Dry in the kiln at 100°C for 20 hours to...

Embodiment 3

[0031] A high wear-resistant silica molybdenum brick is prepared from the following components in weight percent:

[0032]

[0033]

[0034] Wherein, described bauxite clinker is Al 2 o 3 The weight percentage is 90% special-grade bauxite clinker; the described silicon carbide fine powder is silicon carbide fine powder with a SiC weight percentage of 93%; the described fused white corundum powder is Al 2 o 3 The electric fused white corundum powder that weight percentage is 99.6%; Described andalusite powder is Al 2 o 3 The andalusite powder that weight percent composition is 58.6%; Described bonding fire clay is Al 2 o 3 The weight percentage is 38.7% combined fire clay.

[0035] The above-mentioned raw materials are weighed according to the proportion, then put into the forced mixer and mixed well, and kneaded to make mud; use a friction brick press to press the mud under a pressure of 650KN to obtain adobe; the formed adobe is dried Dry in the kiln at 170°C for...

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Abstract

The invention discloses a high-wear-resistance red Guimo brick and a preparation technique thereof, belonging to the field of refractory materials. The high-wear-resistance red Guimo brick is prepared from the following components in percentage by weight: 30-35% of alumina clinker with the particle size d of greater than 1mm, 10-15% of alumina clinker with the particle size d of greater than or equal to 0.088mm and smaller than or equal to 1mm, 5-6% of alumina clinker with the particle size d of smaller than 0.088mm, 15-25% of silicon carbide fine powder with the particle size d of smaller than or equal to 0.088mm, 15-25% of electrofused white alundum powder with the particle size d of smaller than or equal to 0.088mm, 10-15% of andalusite powder with the particle size d of smaller than or equal to 0.088mm, 3-5% of combined fireclay with the particle size d of smaller than or equal to 0.088mm, 0.3-0.8% of yellow dextrin, 0.2-0.5% of methyl cellulose and 4-5% of water. The high-wear-resistance red Guimo brick has the characteristics of high wear resistance, high temperature resistance, high thermal shock stability, high refractoriness under load, low thermal conductivity and the like.

Description

technical field [0001] The invention belongs to the field of refractory materials, and relates to a high wear-resistant silicon molybdenum brick and a preparation process thereof, in particular to a high wear-resistant silicon molybdenum brick for a large dry-process cement kiln and a preparation process thereof. Background technique [0002] The decomposition zone and transition zone of the existing large-scale dry-process cement rotary kiln usually use magnesia-aluminum spinel bricks or ordinary silica molybdenum bricks. Ordinary silica-mollite bricks are made of ordinary bauxite raw materials and silicon carbide in the process of pressing, drying and firing refractory bricks. The bonding strength is not enough, and the lack of firing temperature leads to incomplete development of mullite crystals, resulting in wear resistance, high temperature resistance, The thermal shock resistance is relatively general. Contents of the invention [0003] The purpose of the present i...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/103C04B35/622
Inventor 吴俊亮沈驰钱利峰陈志福
Owner JIANGSU SHUNXING REFRACTORY TECH
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