| 摘要 |
The invention relates to a glass melting furnace comprising a cuvette (5) and an upper furnace (1) having a furnace top (4) and an inner total length ("Lg"), a pre-heating zone (16) for the charge material (14) and a furnace chamber (19) having burners (20). The aim of the invention is to provide a glass melting furnace and a corresponding operating method which allow the. legal requirements for the limits of the environmental impact to be kept without the profitability being reduced and without requiring additional methods, installations and operating staff. The invention is characterized in that a) a single radiation wall (IS) is arranged between the pre-heating zone (16) and the furnace chamber (19) and limits the length ("Lv") of the pre-heating zone (16) to values of 15 to 35 % of the inner total length ("Lg") and the length (("Lf") of the furnace chamber (19) is extended to values of 65 to 85 % of the inner total length ("Lg"), b) the pre-heating zone (I6) is designed exclusively for the furnace-internal pre-heating of the charge material (14), c) a gas source for the oxidation gas has an oxygen content of at least 85 vol.- % of oxygen, and d) at least one outlet (18) of the pre-heating zone (16) for the exhaust gases is connected to the atmosphere without the intermediate connection of a heat exchanger. |
