How to pick kiln refractory

If you would like to build a heater or kiln, you should strictly choose suitable refractory materials for the specific need based on a temperature and different substance erosion. And before that you can first choose an improved refractory manufacturer.

Cement rotary kiln belongs to building materials equipment and is one kind of calcium kiln. Rotary kiln can be divided into concrete rotary kiln, metallurgy substance kiln and lime rotary kiln according to different materials processing. Cement kiln is mainly used to calcine cement clinker. Generally there are two types of manufacturing technique of dry method and wet process. Therefore, which kind of refractory brick is suited to concrete floor rotary kiln? I will clear your idea at this introduction for a myriad of refractory bricks materials.

Magnesite Chrome Brick

Magnesite chrome brick is a kind of refractory materials products, which adopts MgO and Cr2O3 as its main component, periclase and spinel as the main mineral constituent. Kilnrefractory.com/magnesia-chrome-brick has high refractoriness and excellent features of high-temperature strength, strong basic hudproblem erosion resistance, good high temperature stability and good acidity slag erosion resistance. Magnesite chrome brick is created with main materials of magnesite clinker and chromite. Choose high purity magnesia as far as possible. Chemical element of chromite is required that Cr2O3: 30~45%, CaO: <=1.0~1.5%.
Features of Magnesite chrome brick: Magnesite chrome brick is mainly used for burning zone with good property of adhering coating. But magnesite chrome brick has bad thermal shock resistance.

Spinel Brick

When cement kiln adopts coal as fuel, there is always happened phenomenon of incomplete combustion in some local position. There is existing excess Cao and change of oxygen content, ferric component in direct-bonded magnesia-chrome bricks will have a redox reaction. Then there is no iron in the spinel brick. There will be not this kind of volume change reaction.
Features of spinel brick: Spinel brick is mainly used for transition zone with good shock resistance and great reduction-resistant. But its refractoriness is not very high.

High Alumina Brick

High alumina brick is one kind of refractory materials, which contains main component of Al2O3. If the Al2O3 content is higher than 90%, the brick will be corundum brick. As the several materials, the standard in every country is not complete inconsistency. For example, standard for high alumina refractory materials that Al2O3 should not less than 42% in European countries. But in China, High alumina brick is divided into three grades in line with the Al2O3 content: I grade, Al2O3> 73%. II grade, Al2O3 is 60~75%. III grade, Al2O3 is 48~60%.
Features of high alumina brick: over 72% Al2O3 content, refractoriness is higher than open fire clay brick, great acid-base resistance, well suited for burning sector of cement kiln, much longer service life and higher price.

Truly there are many types of refractory bricks and materials for sale in factory for furnace and kiln application. Search kilnrefractory.com for more information on refractory for great application.