Oxygen enrichment combustion-supporting method for float glass melter

Abstract

The present invention relates to oxygen-rich comburant method for float glass kiln. The oxygen-rich air the nitrogen making system in the float glass production line produces is pressurized, introduced to two sides of the glass smelting kiln heat accumulating chamber, made to pass through lower branched pipes with control valve, jetted with the oxygen-rich nozzle and mixed with comburant blast to realize local oxygen increasing combustion. The oxygen-rich nozzle is heat resisting rectangular one of stainless steel, is in an angle of 25-50 deg to the central line of the small furnace, and is provided with guide board. The said method can raise the heat efficiency of in-kiln combustion while avoiding local overheat, so as to lower oil consumption, raise output and reduce NOx exhaust.

Description

technical field [0001] The invention relates to an oxygen-enriched combustion-supporting method for a float glass melting furnace. Background technique [0002] In order to reduce energy consumption and reduce NOx emissions, at present, people have carried out the following experiments on oxygen-enriched combustion in float glass melting furnaces: ①The combustion-supporting air method of introducing oxygen-enriched air into the combustion-supporting air main pipe. Due to the unreasonable distribution of oxygen-enriched air in the kiln, there will be dome burning flow, which will endanger the life of the furnace, and the experiment will be interrupted; ②Use the oxygen-enriched spray gun method. However, because the oxygen-enriched air temperature is too low, the nitrogen supply pressure fluctuates too much, which affects the continuous implementation of the method. Due to the continuity of float glass production (the kiln period is generally 5-10 years), and the transformati...

AI Technical Summary

Problems solved by technology

However, because the temperature of the oxygen-enriched air is too low, the nitrogen supply pressure fluctuates too much, which affects the continuous implementation of the method.

Due to the continuity of float glass production (the kiln period is generally 5-10 years), and the oxygen-enriched combustion-supporting technology transformation should usually be carried out during the cold repair period, which greatly restricts people's exploration experiments on oxygen-enriched combustion-supporting technology

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