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大型热处理炉采用电加热是不经济的,采用发生炉煤气则煤气站投资太大,采用重油作为大型热处理炉的燃料,在当前也可能是比较可行的。但是重油过去多用于1100℃以上的钢锭或锻坯的加热炉。用于950℃左右的热处理炉加热必须采取措施,保证重油的稳定燃烧。有的厂在助燃空气里加入水蒸汽,以提高重油雾化效果;或用高压蒸汽雾化重油。这两种措施都易使被加热工件严重脱碳。经过调查分析,我厂2.3×16m辊底
It is uneconomical to use large heating furnace for electric heating. Using gas from coal gas station will invest too much. Using heavy oil as fuel for large heat treatment furnace may be feasible at present. However, heavy oil used in the past for more than 1100 ℃ ingot or forging billet heating furnace. For the heat treatment furnace heating at about 950 ℃ measures must be taken to ensure the stable combustion of heavy oil. Some plants in the combustion air to add water vapor to improve the effect of heavy oil atomization; or high pressure steam atomized heavy oil. Both of these measures tend to severely decarbonize the heated workpiece. After investigation and analysis, I plant 2.3 × 16m roller bottom