Zirconium mullite red brick and preparation technology thereof

A preparation process, the technology of zirconium molybdenum bricks, applied in the field of refractory materials, can solve the problems of short service life of bricks used in the transition zone, and achieve the effects of strong erosion resistance, lower temperature, and high thermal shock stability

Active Publication Date: 2014-05-28
ZHEJIANG RUITAI REFRACTORY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The zirconium molybdenum brick and its preparation process provided by the present invention are aimed at overcoming the short service life of the bricks used in the transition zone in the dry process rotary kiln in the prior art

Method used

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  • Zirconium mullite red brick and preparation technology thereof
  • Zirconium mullite red brick and preparation technology thereof
  • Zirconium mullite red brick and preparation technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Zirconium red brick, including the following components, the weight percentage of each component is:

[0047] Super-grade high-bauxite clinker with a diameter greater than 3 mm and less than or equal to 5 mm: 5%;

[0048] Super-grade high-bauxite clinker with a diameter greater than 1 mm and less than or equal to 3 mm: 18%;

[0049] Sintered mullite with a diameter greater than 1 mm and less than or equal to 3 mm: 15%;

[0050] Synthetic mullite with a diameter greater than 0.1 mm and less than or equal to 1 mm: 10%, the synthetic mullite is Al 2 o 3High-temperature synthetic mullite with a content greater than or equal to 70%;

[0051] Synthetic mullite with a diameter of less than 0.1 mm: 7%, said synthetic mullite being Al 2 o 3 High-temperature synthetic mullite with a content greater than or equal to 70%;

[0052] Zirconium concentrate powder with a diameter greater than 0.1 mm and less than or equal to 1 mm and containing more than or equal to 65% zirconium:...

Embodiment 2

[0073] Zirconium red brick, including the following components, the weight percentage of each component is:

[0074] Super-grade high-bauxite clinker with a diameter greater than 3 mm and less than or equal to 5 mm: 8%;

[0075] Super-grade high-bauxite clinker with a diameter greater than 1 mm and less than or equal to 3 mm: 15%;

[0076] Sintered mullite with a diameter greater than 1 mm and less than or equal to 3 mm: 17%;

[0077] Synthetic mullite with a diameter greater than 0.1 mm and less than or equal to 1 mm: 10%, the synthetic mullite is Al 2 o 3 High-temperature synthetic mullite with a content greater than or equal to 70%;

[0078] Synthetic mullite with a diameter of less than 0.1 mm: 5%, said synthetic mullite being Al 2 o 3 High-temperature synthetic mullite with a content greater than or equal to 70%;

[0079] Zirconium concentrate powder with a diameter greater than 0.1 mm and less than or equal to 1 mm and containing more than or equal to 65% zirconium...

Embodiment 3

[0100] Zirconium red brick, including the following components, the weight percentage of each component is:

[0101] Super-grade high-bauxite clinker with a diameter greater than 3 mm and less than or equal to 5 mm: 10%;

[0102] Super-grade high-bauxite clinker with a diameter greater than 1 mm and less than or equal to 3 mm: 17%;

[0103] Sintered mullite with a diameter greater than 1 mm and less than or equal to 3 mm: 20%;

[0104] Synthetic mullite with a diameter greater than 0.1 mm and less than or equal to 1 mm: 13%, and the synthetic mullite is Al 2 o 3 High-temperature synthetic mullite with a content greater than or equal to 70%;

[0105] Synthetic mullite with a diameter of less than 0.1 mm: 8%, said synthetic mullite being Al 2 o 3 High-temperature synthetic mullite with a content greater than or equal to 70%;

[0106] Zirconium concentrate powder with a diameter greater than 0.1 mm and less than or equal to 1 mm and containing more than or equal to 65% zirc...

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Abstract

The invention relates to a refractory material, in particular to a zirconium mullite red brick and a preparation technology thereof. According to the zirconium mullite red brick provided by the invention and a product prepared due to the adoption of the preparation technology, a refractory brick is prepared by adding a phosphoric acid solution; according to the refractory brick, the temperature of a kiln shell can be effectively reduced, the refractory brick is long in service life, resistant to abrasion and high in anti-erosion ability, and particularly the times of thermal shock resistance reach more than 40; the operating temperature range of the product is between 1400 DEG C and 1550 DEG C, and the maximum allowable temperature is 1600 DEG C; at a high-temperature operating state, the product has high strength, erosion resistance, high-wearing feature, high thermal shock resistance, low heat conductivity coefficient and higher refractoriness under load.

Description

technical field [0001] The invention relates to a refractory material, in particular to a zirconium molybdenum brick and a preparation process thereof. Background technique [0002] The new dry rotary kiln technology has become the main production process in the cement industry, and the brick-breaking maintenance and masonry of the rotary kiln has also evolved into a highly competitive field. For cement plant owners, shortening kiln shutdown time, reducing equipment maintenance costs, ensuring operation safety, and improving the utilization rate of the rotary kiln have become issues that must be attached great importance to. [0003] The bricks used in the transition zone of the new dry-process rotary kiln in the prior art are commonly imported spinel bricks and silica molybdenum bricks. Due to the high cost of spinel bricks, short service life, and high thermal conductivity of spinel bricks, it is not Conducive to energy saving and consumption reduction; while the content ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 范圣良
Owner ZHEJIANG RUITAI REFRACTORY TECH
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