Method and arrangement for use in lining articles, particularly melting ovens

Abstract

A method and arrangement for lining articles are disclosed which are particularly well-suited for use in lining melting ovens. The arrangement includes a mold member which is composed of several relatively movable sections so as to permit the dimensions thereof to be changed. For the lining of an oven chamber, the mold member has an external surface the configuration of which corresponds to the inner wall of the oven chamber. This surface is coated with a refractory-containing composition, which is releasably secured over the surface. In coating the mold member the composition is made up in a flowable or plastic state, applied over the external surface of the mold member in this state, and then hardened, for instance, by heating. The composition is of such a nature that the temperatures required for hardening the same are sufficiently low to avoid undesirable effects on the mold member. In order to line the oven chamber, the mold member and its coating of the hardened composition are arranged inside the chamber so that the coating faces the inner wall of the chamber and is spaced therefrom. A ramming mass is then admitted into the space defined between the inner wall of the chamber and the coating. Thereafter, the mold member is disengaged from the coating by causing the sections thereof to move inwardly, thereby decreasing the dimensions of the mold member, and the mold member is then removed from the oven chamber. The hardened coating remains behind and serves to maintain the ramming mass in position. The ramming mass is sintered and is thus converted into a lining for the oven chamber. The method and arrangement make it possible to re-use the relatively expensive mold member since the latter need not be subjected to high temperatures which may be detrimental thereto. Thus, the cheaper refractory-containing composition is sacrificed in order to save the mold member.

Dependencies are inferred from the claim text.