Melting furnace

chamberoxy-fuelnitrogen

FEATURES •reduction of the flue gas volume reduce investment in waste gas equipment •low energy consumption •reduced NOx-emmission •reduced dusting of raw materials •improvement of the glass quality •possibility to increase pull •lower costs for refractory material (and with it later lower disposal costs) and therefore service costs with the construction •stable combustion since there is no fire change as with regenerative furnaces •easy adjustable temperature profile along the furnace •less space requirements •high flexibility during production changes •long lifetime GENERAL Oxy-fuel furnaces are designed as cross fired unit-melter furnaces whereby the oxidant for the fuel combustion is the oxygen. The biggest advantage is the low energy consumption due to the absence of the nitrogen at the combustion process. A complete oxy-fuel furnace is approximately 35% cheaper in comparison to a cross-heated regenerative furnace, approximately 15-20% cheaper in comparison to an end fired furnace, and approximately 25-30% cheaper in comparison to a recuperativ furnace. DESCRIPTION HORN oxy-fuel furnaces are designed to allow for the specific conditions when firing with oxygen and fuel. The reduced waste gas volume in particular requires a modified superstructure design. The aim is to reduce the thermal load of the superstructure to less than 40 000 kcal / (m ³* h). This increases the residence time of the flame gases inside the tank and increases efficiency.