SCHMELZWANNE FUER GLAS-WANNENOEFEN MIT PALISADENSTEINEN UND BETRIEBSVERFAHREN HIERFUER

摘要

In a melting end for glass melting furnaces, the end chamber (5) is surrounded by rows of soldier blocks (28) consisting of a fireproof mineral substance and having an innerside (29) towards the end chamber, an outer side (30) away from the end chamber and a rectangular cross-section at least in their lower region and projecting above the intended surface (6) of the molten glass. To extend the furnace campaign the soldier blocks (28) have at least one recess reducing the cross-section in the deep direction on the outside in the region of the glass surface (8) which can be filled with supplementary elements of a material compatible with the soldier blocks and largely resistant to glass. In an initial stage the base of the first recess (31) is flushed with cooling air before the supplementary element is fitted. In later stages, a supplementary element is inserted into the first and every further recess and their outer sides are flushed with cooling air.