Introduction to the energy-saving advantages of applying a full oxygen burner to a coal gas baking oven
2025-07-30
Pure oxygen combustion technology revolutionizes ladle baking: reducing exhaust emissions by 70%, saving energy by up to 50%, and combined with precise temperature control and insulation measures, achieving comprehensive energy savings of up to 60% for efficient, safe, and environmentally friendly steel production. Pure oxygen combustion effectively reduces energy consumption in ladle baking, improves production efficiency, and reduces environmental pollution.
Energy-saving principle of pure oxygen combustion: In traditional air-assisted combustion, methane (CH4) and oxygen (O2) require a large amount of nitrogen (N2) to maintain stable combustion. Pure oxygen combustion uses high-concentration oxygen to simplify the combustion process, allowing methane to combine more efficiently with oxygen, producing carbon dioxide (CO2) and water (H2O), and releasing a large amount of heat. This high-concentration oxygen combustion method not only simplifies the combustion process but also significantly reduces energy consumption, achieving energy savings.
The fuel is all from gas, and air or oxygen does not directly bring in or generate heat. In air, oxygen accounts for only 21% by volume, while nitrogen accounts for 79%. When using pure oxygen combustion, compared with air combustion, the flue gas volume can be reduced by more than 70%. The heat in the flue gas depends on its volume, temperature, and specific heat. The energy-saving principle of pure oxygen combustion lies in reducing nitrogen, which does not participate in the combustion reaction and has no promoting effect on the reaction, thereby reducing exhaust heat loss and improving fuel utilization efficiency.
Advantages of Oxygen Combustion Technology Advantages of oxygen combustion technology: While maintaining the same heating capacity, oxygen combustion can reduce flue gas volume by 70%-75%. Under the same heating conditions, the use of oxygen combustion technology can significantly reduce exhaust heat loss, greatly improving thermal utilization efficiency, even reaching twice the original level, while the energy-saving effect is also significant, reaching about 50%.
Ladle Baking Energy-Saving Measures :
Analysis of the effects of various energy-saving measures: Adopting measures such as ladle surface insulation, precise control of the air-fuel ratio, and temperature curves can significantly reduce heat loss and improve thermal utilization efficiency.
1. Ladle surface insulation: By observing the changes in gas consumption in winter and summer, we found that after implementing ladle surface insulation measures, gas consumption was reduced by at least 3% to 5%. This finding directly demonstrates the significant energy-saving effect of ladle surface insulation.
2. Precise control of the air-fuel ratio: In the baking process, heat loss due to incomplete combustion is closely related to the amount of air supplied. When the baking temperature is maintained at about 1100℃, if the air supply increases by 10%, the natural gas consumption will increase to about 10.15%. This observation highlights the key role of precise control of the air-fuel ratio in energy saving.
3. Precise control of the target temperature: By following the heating curve, we can effectively reduce the smoke and heat dissipation losses caused by rapid heating. Through this measure, not only can the baking quality of the refractory materials be improved, but also the service life of the ladle can be extended.
4. Lid insulation measures: The cover accounts for more than 20% of the total heat dissipation area. Therefore, by using fiber modules for insulation, we can significantly reduce the heat storage loss and surface heat dissipation loss of the ladle cover.
5. Reducing exhaust heat loss: By adopting a series of measures, such as air preheating, air heat storage, and pure oxygen combustion, we can effectively reduce heat loss during the exhaust process. The implementation of these measures will help further improve the overall energy utilization efficiency.
Comprehensive energy-saving effect: By comprehensively applying the above energy-saving measures combined with the application experience of pure oxygen combustion technology from Zhengzhou Zhongwei Environmental Protection Equipment Co., Ltd., we can achieve an energy-saving target of 40% to 60%.
Advantages of Zhongwei Pure Oxygen Burner Advantages: Pure oxygen burners have many advantages, not only focusing on safety in design but also providing flexible adjustment and control in function.
(1) Unique design and safety performance: Pure oxygen burners have a unique structural design and automatic ignition technology, which greatly improves their safety performance. The premix-free design merges in the large space of the furnace, eliminating the risk of flashback, thus greatly improving the safety factor. At the same time, the burner is equipped with a constant pilot flame burner technology, with a small-to-large design concept to ensure the safety and reliability of the ignition process.
(2) Flexible adjustment and control functions: Pure oxygen burners can flexibly adjust the flame size and length. According to the depth of the ladle, the flame length can be adjusted online to meet different heating needs. In addition, it provides high-precision temperature curve control to ensure safe and efficient heating. Through these advantages, pure oxygen burners demonstrate their excellent energy-saving effect and operational convenience in ladle baking.
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