Glass melting furnace and method for melting glass

Abstract

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 (15) 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 (16) 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.

Description

technical field [0001] A glass melting furnace for melting glass, especially lime-sodium bicarbonate glass, especially glass containers or glass faces and mechanical glass for rolling processes, especially borosilicate glass or neutral Glass, the glass melting furnace has a tank, a top furnace with a roof and a total internal length ("Lg") within which there is a preheating section for feeding with at least one exhaust port, a furnace bin with nozzles, Elevated sections, homogenization zones, bottom channels and elevated channels for molten glass on the trough surface, where the gas source of an acid-rich oxidizing gas is a nozzle outside the fossil fuel outlet, and At least one row of water jet drinking ports is arranged in the furnace chamber in front of the raised part of the bottom surface. Background technique [0002] EP0864543B1 can be used as the closest technical background. This document exhaustively discloses exactly the opposite problems in glass melting, such ...

AI Technical Summary

Problems solved by technology

This limits more gas circulation and most piping

For this reason, there is no absolute "heat density" separator for large-volume heat exchangers, so high combustion consumption and heating losses in the environment are unavoidable, where the early discharge of combustion gases also represents Sources of loss in the combustion chamber

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