Production technology of high alumina brick and clinker clay brick more similar, the difference is that the ingredients in the clinker ratio is higher, can be as high as 90 ~ 95%, before breaking the clinker grading sorting and screening in addition to iron, firing temperature is higher, such as Ⅰ, Ⅱhigh alumina refractory brick with tunnel kiln firing when the general is 1500 ~ 1600 ℃.
Chinese production practice has proved that high alumina clinker strictly choose grading, and hierarchical storage before crushing, bauxite clinker and clay together fine grinding method, to improve the quality of products.