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High temperature fireproof brick and preparation method thereof

A refractory brick and high temperature technology, applied in the field of refractory materials and their preparation, can solve problems such as inability to use, and achieve the effects of long service life, strong erosion resistance and simple preparation method

Active Publication Date: 2009-03-11
宜兴市张泽工业炉材料厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for some special processes, especially some chemical reactions, such as the process of extracting and preparing rubber from crude oil, a high temperature of 2100 ° C is required. In this case, ordinary refractory bricks cannot meet the requirements and cannot be used. It is urgent to develop a Refractory bricks that can withstand high temperatures of 2100°C

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Add 11 parts of corundum powder, 7 parts of kaolin, 55 parts of zircon sand, 15 parts of chromium dioxide and 9 parts of zirconium dioxide into the high-speed mixer and stir for 10 to 15 minutes. While stirring, sprinkle 4 parts of water until Mix evenly; keep the material for 5 days; press the mixed material into adobe in a 600-ton brick press to ensure that the density of the refractory brick is 3.2-3.4kg / m 3 ; The shaped adobe is fired at 1500-1600°C for 36 hours and then cooled to room temperature; then fired at 1700-1850°C for 72 hours and then cooled to room temperature.

Embodiment 2

[0018] Add 10 parts of corundum powder, 6 parts of kaolin, 50 parts of zircon sand, 13 parts of chromium dioxide and 8 parts of zirconium dioxide into the high-speed mixer and stir for 10 to 15 minutes. While stirring, sprinkle 3 parts of water until Mix evenly; keep the materials for 3 days; press the mixed materials into adobes in a 600-ton brick press to ensure that the density of the refractory bricks is 3.2-3.4kg / m 3 ; The shaped adobe is fired at 1500-1600°C for 24 hours and then cooled to room temperature; then fired at 1700-1850°C for 72 hours and then cooled to room temperature.

Embodiment 3

[0020] Add 12 parts of corundum powder, 8 parts of kaolin, 56 parts of zircon sand, 16 parts of chromium dioxide and 10 parts of zirconium dioxide into the high-speed mixer and stir for 10 to 15 minutes. While stirring, sprinkle 5 parts of water until Mix evenly; keep the materials for 3 days; press the mixed materials into adobes in a 600-ton brick press to ensure that the density of the refractory bricks is 3.2-3.4kg / m 3 ; The shaped adobe is fired at 1500-1600°C for 16 hours and then cooled to room temperature; then fired at 1700-1850°C for 80 hours and then cooled to room temperature.

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Abstract

The invention discloses a high-temperature refractory brick, which comprises the following components in weight portion: 10 to 12 portions of corundum powder, 6 to 8 portions of kaolin, 50 to 56 portions of Zircon sand, 13 to 16 portions of chromium dioxide, 8 to 10 portions of zirconium dioxide and 3 to 5 portions of water. The invention also discloses a technology for preparing the high-temperature refractory brick. The high-temperature refractory brick can tolerate the high temperature up to 2,100 DEG C and fully meet the working conditions of a high-temperature furnace, and has the advantages of stronger scouring and wearing resistance, good corrosion resistance and thermal shock resistance, and long service life. The preparation method adopts a unique twice baking technology to allow the ultra-temperature condition of the high-temperature refractory brick to fulfill super-high temperature conditions, and is simple and easy to realize.

Description

technical field [0001] The invention relates to a refractory material and a preparation method thereof, in particular to a refractory brick which can withstand a high temperature of 2100°C and a preparation method thereof. Background technique [0002] High-temperature refractory bricks are commonly used thermal insulation, heat insulation and structural materials in high-temperature furnaces. Almost all high-temperature containers and equipment need matching refractory materials to achieve high-temperature technical conditions and protect the long-term stable work of the steel structure furnace body. The high temperature chemical corrosion resistance of the supporting refractory materials in high temperature equipment directly affects the life of refractory materials and the working life of high temperature equipment. The refractory materials and refractory bricks currently on the market generally cannot exceed 1600-1700°C, otherwise the refractory bricks will be damaged. ...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/48
Inventor 徐占球
Owner 宜兴市张泽工业炉材料厂有限公司
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