PURPOSE: To obtain an Al2O3-MgO-C regenerated refractory brick capable of effectively reutilizing used Al2O3-MgO-C refractory bricks massively generated from the ladles of a steel mill, thereby reducing the cost for treating or throwing away the used bricks, and effectively utilizing the resource.
CONSTITUTION: This Al2O3-MgO-C regenerated refractory brick is produced by removing deteriorated layers on the operated surface sides of waste Al2 O3-MgO-C bricks used as the lined refractory bricks of a ladle, grinding the left parts, mixing the waste brick ground product with a raw material for new Al2O3-MgO-C bricks in such an amount that the amount of the waste brick ground product is ≤30% based on the whole amount of the mixture, and subsequently molding the mixture.
GOSHIMA MAMORU
MINODA TAKURO
