Introduction to High-alumina refractory brick and its production technology
High alumina refractory bricks that aluminum levels above 48% of aluminium silicate refractory materials. By high content of alumina or alumina raw material and burning. High thermal stability and fire resistance in 1770 at above. Good slag resistance. High alumina bricks are mainly used for masonry in blast furnaces, hot-blast stove, electric stove top, blast furnaces, reverberatory furnace, rotary kiln lining. In addition, high alumina refractory bricks are widely used for open-hearth furnace regenerative Checker bricks, pouring system with Plug and outlet tile.
High-alumina refractory brick production process:
High-alumina refractory brick and clay brick production methods are basically the same. Except for some parameters differ. Smashing → mixing → forming → drying → firing → test → packaging process. Low temperature stress to bear better slightly reduced so stacked in the kiln but high temperatures below 1 m. High alumina refractory bricks and clinker brick similar difference is that the ingredients in the production of clinker high percentage can be as high as 90%~9% clinker before the crushing demand rating selection and screening iron and high firing temperature as ⅰ, ⅱ High-alumina refractory brick tunnel kiln is usually 1500~1600℃.
Production practice in breaking the strict selection of high alumina clinker rating, and tiered storage using bauxite and combines clay common grinding method can improve the quality of high-alumina refractory bricks.