Melting furnace used for melting quartz glass has an non-closable opening in its wall during the melting process with a housing arranged outside of the furnace to flush the opening with a gas

摘要

Melting furnace has an non-closable opening (11) in its wall during the melting process. A housing arranged outside of the furnace is used to flush the opening with a gas which influences the combustion process. Preferred Features: The housing consists of a tubing (18) having an outlet (22) in the region of the non-closable opening. The position of the outlet can be changed.