Refractory Cement for Kiln

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1.cheap price and good quality

2. gives out a lot of heat

3. ease of construction

Definition

It is a non-metal inorganic construction material based on calcium aluminate(CaO•Al2O3) or calcium dialuminate(2CaO•Al2O3).It is made up by the way of having natural bauxite or industrial alumina and calcium carbonate(limestone) which are in certain proportion calcined or electric melted, it can also be made through melting laterite and limestone. Compared with silicate cement, calcium aluminate cement has a higher refractoriness, thus it is widely used as binder of refractory castable.

Category

Calcium aluminate cement is sorted into two kinds by chemical composition: common calcium aluminate cement (Al2O353%~72%,CaO21%~35%) and pure calcium aluminate cement(Al2O372%~82%,CaO19%~23%). And common calcium aluminate cement is divided into low iron type(Fe2O3<2.0%) and high iron type(Fe2O37%~16%). The low iron type calcium aluminate cement which has a Al2O3 content of 53%~56% and CaO of 33%~35% is called bauxite cement; the one which has a Al2O3 content of 59%~61% and CaO of 27%~31% is called Aluminium-60 cement; the one which has a Al2O3 content of 65%~70% and CaO of 21%~24% is called low calcium aluminate cement, another kind is fast hardening super early strength calcium aluminate cement. And pure calcium aluminate cement is divided into conventional type (Al2O3 content is 72%~78%)and super high alumina type(Al2O3 content is 78%~85%).

Q:The research direction of unshaped refractory for cement kiln: Setting the product includes: alkali brick, high alumina brick, spalling resistance of silicon carbide brick, magnesia chrome brick, dolomite brick, spinel brick; unshaped products include: high strength alkali resistant castable, high alumina castable, mullite castable, corundum, spinel castable, silicon carbide castable etc..

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