External Over-Coating Of The Glass Bath

During the campaign life of a furnace, either designed or extended, it is inevitable that external over-coating of the melting end glass bath will be required at some stage. In this article, Michael Horsfield considers the application of external over-coating to the furnace glass bath and the need for continuous monitoring. He concludes that over-coating of the glass bath primary refractory can retain a particular encountered problem and extend furnace campaign life, However, it can also introduce added complications if the over-coated positions are not monitored on a scheduled basis.