Process for operating a glass melting furnace and glass melting furnace for carrying out the process

摘要

At least one upward flow of the melt (10) is produced in the region between the center of the melter zone (3) and the front (19a) of the clarifier bank (19). Before reaching the melt surface (9) this flow branches into two, with one flow directed upstream into the melter zone and the other directed downstream into the clarifier zone (4). The downstream flow effectively prevents return of the melt from the clarifier zone into the melter zone. The claimed glass melting furnace is characterized by the presence of means (16, 17, 18) for production of an upward, subsequently branching melt flow near the front of the clarifier bank.