Abstract: Runner for guiding a flow of liquid metal and/or slag, comprising a refractory permanent lining and, inside the latter, a refractory wear lining, in which runner the permanent lining is arranged inside an elongate trough-like steel casing, in which parallel runner ducts through which a gaseous cooling medium is passed run through this permanent lining divided along the circumference and in the vicinity of the bottom and the walls of the steel casing, and in which the wearing and the permanent lining are separated from one another by a deformable layer which is made from the group of materials comprising dry refractory ramming mixture and refractory felt.

Abstract: Runner for conveying a hot melt, for example molten pig iron and slag, comprising a wear lining in which the melt flows during normal operation, a safety lining which surrounds the wear lining and a metal encasing which surrounds the safety lining, wherein the safety lining is made essentially of a refractory concrete, and the metal encasing and the safety lining are joined to one another by anchoring means, and wherein a means for keeping the encasing at a higher temperature where it would otherwise have a relatively cool spot is situated locally on the outwardly facing side of the encasing.