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以鞍钢1800～2580米~3大型高炉为对象,探讨强化冶炼过程的条件及问题。精料是强化冶炼过程的基础,它可以保证高炉料柱有良好的透气性以保证顺行,同时又可以降低燃料比。鞍钢七高炉入炉矿石铁分由50％提高到56％,渣铁比由700公斤/吨降到426公斤/吨,但其校正燃料比并未相应降低。计算了七高炉1978年5月和12月的校正燃料比和鞍钢七高炉和日本和歌山高炉校正燃料比都说明如此。问题在于鞍钢烧结矿含粉率高达16～18％,而日本和歌山高炉不大于5%,以及鞍钢大型高炉在强化条件下其炉
Taking Anshan Iron and Steel 1800 ~ 2580 m ~ 3 large-scale blast furnace as the object, to discuss the conditions and problems of strengthening smelting process. Concentrate is the basis for strengthening the smelting process, it can ensure that the blast furnace column has good permeability to ensure that the forward, while reducing fuel ratio. The iron content of the ores entering the furnace at the No.7 BF increased from 50% to 56% and the slag / iron ratio dropped from 700kg / t to 426kg / t, but the corrected fuel ratio did not decrease accordingly. Calculating the corrected fuel ratio of the seventh blast furnace in May and December 1978 and the corrected fuel ratio of the seventh blast furnace in Angang and Wakayama, Japan both illustrate this. The problem is that Angang sinter ore containing powder rate as high as 16 to 18%, while Japan Wakayama blast furnace is not more than 5%, and the Anshan Iron and Steel Co., Ltd. large furnace blast furnace under enhanced conditions