High aluminum refractory brick [products]:
High aluminum refractory brick, namely alumina content of more than 48% in an alumina silicate refractory. By alumina or other high content of alumina raw materials forming andcalcination. High thermal stability, refractoriness in 1770 DEG C. Slag resistance is good.
The classification of high aluminum refractory brick []:
Is usually divided into three categories:
I: the content of Al2O3 is more than or equal to 75-80%;
II: the content of Al2O3 60%~75%;
III: the content of Al2O3 48%~60%;
[production process] :
Basically the same molding production method of highaluminum refractory bricks and clay bricks, but some process parameters vary. There are crushing, mixing, forming, drying,sintering, inspection and packaging process. Under low temperature, the compressive stress under high temperatureis better but slightly reduced so kiln stacked below 1 meters.The producing process of high alumina refractory brick andclay brick clinker similar difference lies in that the higherproportion of clinker can be as high as 90% ~ 99% clinker incrushing need before grading picking and screening iron removing higher firing temperatures such as I, II high alumina refractory brick firing tunnel kiln is generally 1500 ~ 1600 DEG C.
[use] high alumina refractory brick:
Mainly used in blast furnace, hot blast furnace, furnace top,blast furnace, reverberatory furnace, rotary kiln lining. In addition, high alumina refractory bricks are widely used asopen hearth furnace regenerative checker brick, gating system using the plug head, nozzle etc..