摘要
通过向100tRH真空室内喷射液态天然气和氧气的混合气体,考察了其补偿热量的效果及耐火内衬表面和钢液的温度变化。结果表明:该方法不仅能够补偿钢液的热量损失,而且RH内衬上也不会粘附冷钢:在常压下燃烧混合气,约70%的热量被内衬吸收,在处理钢液过程中燃烧混合气,约52%热量被钢液吸收:热辐射率ε与热量传输率相当,约为0.38。
By spraying the mixture of nature gas and oxygen to 100 t RH vacuum cabinet, the effect of heat compensation of and the temperature change of refractory lining surface and molten steel are investigated. The result shows that the method can not only compensate the heat loss of molten steel but also keep cold steel from sticking on lining. About 70 per cent heat of the burning mixture gas under common pressure is absorbed by inner lining; about 52 per cent heat of the gas burning during molten steel treatment process is absorbed by the molten steel. The heat radiation rate εequivalent to heat transfer rate is about 0.38.
出处
《天津冶金》
CAS
2005年第6期63-67,共5页
Tianjin Metallurgy
