ENERGY-EFFICIENT HIGH-TEMPERATURE REFINING

摘要

The invention relates to an energy-efficient refining of a glass melt for producing a glass and/or a glass ceramic. The device according to the invention comprises the following components: a refining crucible, which is formed at least by lateral walls having on an inner face a metal lining as the melt contact surface, such that a melt-refining volume that is defined by a base surface, a top surface and a lateral surface is formed at least in the refining crucible; at least one heating device for conductively heating the lining by means of a current flow in the lining, such that the melt can be heated by means of the heated lining, wherein the heating device and the lining are connected to each other via feed lines. The feed lines establish contact with the lining in such a manner that a current flow running from the top surface to the base surface or from the base surface to the top surface can be generated at least in sections of the lining.