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1979年我国重点企业初轧燃耗为78公斤/吨,轧钢燃耗为109公斤/吨.其中,均热炉和加热炉的燃耗占70％以上.因此探讨轧钢加热炉的节能是十分有意义的. 一、加热炉长度与加热炉炉底强度各种设计计算结果表明,目前一般采用的设计标准是根据图1所示的曲线进行的. 从图1可以看出,以炉底强度为600—650公斤/米~2·时进行设计为宜.这样,加热炉的有效长度要比初期采用的高炉底强度(900公斤/米~2·时)的炉子加长1.4—1.5倍.延长加热炉
In 1979, the key enterprises in our country had a burnup of 78 kg / ton of first rolling and a burnup of 109 kg / ton of rolled steel, of which the burnup of the soaking furnace and the heating furnace accounted for over 70% .Therefore, it is very important to discuss the energy saving of the rolling furnace Significance.First, the length of the furnace and the furnace bottom strength of various design and calculation results show that the current design standard is generally based on the curve shown in Figure 1. It can be seen from Figure 1, the furnace bottom strength of 600-650 kg / m ~ 2 ·, the effective length of the furnace should be 1.4-1.5 times longer than that of the initial blast furnace bottom strength (900 kg / m ~ 2 · h) furnace