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目前世界各国平炉燃料均趋向于采用高发热值燃料,如重油、天然气、冷焦炉煤气等。包钢平炉限于条件系采用高炉焦炉混合煤气供热,并以煤系燃料油作为增炭剂。经过两年来的实践,证明增炭后提高了平炉火焰的幅射性能和燃烧气源的动能,抑止了泡沫渣的生成。但目前包钢平炉上应用的两种喷油嘴还存在着一些缺点,例如:小烧嘴(类似УПИ型喷油烧嘴)雾化极其不良;大烧嘴(图1)嘴口经常堵塞,雾化剂消耗
At present, flat furnace fuel in all countries in the world tends to use high calorific value fuels, such as heavy oil, natural gas and cold coke oven gas. Baotou open hearth furnace conditions limited to the use of blast furnace coke oven mixed gas heating, and coal-based fuel oil as a carbon agent. After two years of practice, it has been proved that after carbonation, the radiation performance of the open hearth flame and the kinetic energy of the combustion gas source are increased, inhibiting the generation of foam slag. However, there are still some shortcomings of the two kinds of fuel injectors used on the Baotou Flat Furnace. For example, small burners (like the УПИ fuel injection burners) have extremely poor atomization; large burners (Figure 1) Atomizer consumption