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The Secrets You Don't Know About Refractory Bricks

Date:2018-12-24 16:23 From:Zhengzhou Sunrise Refractory Author:admin
The types and uses of refractory bricks are very wide. Some special parts of equipment can only use specific refractory products. Do you know why? Today sunrise refractory will introduce you to these secrets about refractory bricks that you don't know, and take you into the mysterious world of refractory bricks.
 
What are the refractory bricks?
There are many types of refractory brick products, such as silica brick, semi-silica brick, clay brick, high alumina brick, magnesia brick, insulation brick, etc., special refractory brick has low creep, anti-flaking, high density, low porosity, AZS brick, Corundum brick, directly combined with magnesia chrome brick, silicon carbide brick, silicon nitride bonded silicon carbide brick, nitride, silicide, sulfide, boride, carbide and other non-oxide, calcium oxide, chromium oxide, aluminum oxide, oxidation Refractory products such as magnesium and cerium oxide.

 What are the basic properties of refractory bricks?
(1) refractoriness; (2) high temperature volume stability; (3) resistance to rapid cooling and rapid heat;

If we are according to the chemical composition, what are the refractory products?
Acidic materials, such as silica bricks; (2) alkaline materials, such as magnesia bricks, dolomite bricks, magnesia carbon bricks; (3) neutral materials, such as high alumina bricks, carbon bricks.
Due to the wide variety of refractory products and wide application, special refractory bricks or products can only be used in certain special parts.
 
For example, a 2000 ton/D rotary kiln firing zone must use mafic iron spinel bricks, and the upper transition zone uses magnesium aluminum spinel bricks. Why, because these parts are currently using special refractory bricks due to environmental and temperature factors. To meet the requirements for use;
 
For example, the molten pool of the glass kiln needs to resist the erosion and impact of the glass solution, and only the fused zirconium corundum brick can be used, because other refractory bricks do not achieve long-term use effects;
 
For example, the ball dome of the bottom of the second-stage reformer of the chemical industry ammonia plant can only be built with special-type low-silicon corundum refractory bricks. Although the temperature of the reformer is not high, the requirements for the use of refractory bricks are relatively high. Only corundum refractory materials.
 
The above is some small secrets about refractory bricks. I hope that can help you when choosing refractory materials. If you have other questions, Zhengzhou sunrise refractory welcomes you to send an email or call us every time.

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