How Much Stronger Is The Full Oxygen Combustion Glass Furnace Compared To Traditional Glass Furnaces Based On Actual Data

How much stronger is the full oxygen combustion glass furnace compared to traditional glass furnaces based on actual data

The application of full oxygen combustion technology in glass furnaces has many advantages. The previous article has already introduced it in detail, so I won't go into detail here. Today, I will show you a set of actual data to see how much stronger the full oxygen combustion glass furnace is compared to the air assisted combustion glass furnace in practical application?

1. Comparative analysis of the actual flue gas production between full oxygen combustion and air assisted combustion in a glass furnace. By comparing the actual flue gas production of a domestic company's 600T/D float glass furnace using full oxygen and another 600T/D float glass furnace using air assisted combustion, the flue gas production of full oxygen combustion is about one-third of that of air assisted combustion, which is far less than the air demand and flue gas production during air assisted combustion; The content of SO ₂ in the flue gas of full oxygen combustion is only 53% of that of air assisted combustion, and the content of NOx is only 26% of that of air assisted combustion, greatly reducing the emission of exhaust gas, especially NOx; Please refer to Table 1 for details.

2. Comparative analysis of energy consumption between full oxygen combustion and air assisted combustion in glass furnaces. In air assisted combustion operations, it is necessary to heat a large amount of nitrogen gas, which is not beneficial to the heating process, to the operating temperature of the furnace and waste a large amount of energy. Taking methane natural gas fuel combustion as an example:

Air assisted combustion: CH ₄+2O ₂+7.5N ₂=CO ₂+2H ₂ O+7.5N ₂

Full oxygen combustion: CH ₄+2O ₂=CO ₂+2H ₂ O

Normally, only 21% of the total air is consumed by oxygen in air combustion, while the remaining approximately 78% of nitrogen not only does not support combustion, but also carries a large amount of heat away from the flue gas. In the case of using full oxygen combustion, the amount of air required for fuel combustion decreases, and the heat carried away by exhaust gas decreases; Fully combusted, without small furnaces or heat storage chambers, with minimal outward heat dissipation and significant energy-saving effects.

3. Comparison of operating costs in glass manufacturing: Compared with air assisted combustion, oxyfuel combustion has complete fuel combustion, high flame temperature, strong radiation ability, and flame radiation can increase the temperature of glass liquid by about 100 ℃