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为了降低炼铁能耗,减少或取消生熔剂入炉,国内外都在发展高碱度烧结矿。邯钢高炉使用100%烧结矿,由于受“槽形区”(即碱度在1.0～2.0范围内存在强度衰弱区)理论的影响,碱度长期控制在1.0左右,灰石单耗高达100公斤/吨铁以上,各项技术经济指标与先进企业相比,都有较大差距。1981年3—4月。曾在高炉上进行了高低碱度烧结矿搭配使用的生产试验,并且取得了明显的经济效果。但是,由于在管理和设备方面存在一定困难,因此未能坚持下来。另外采用高碱度烧结矿搭配天然富矿或酸性球团,却又受到当地资源和缺少球团设备的限制,短期内不易
In order to reduce the energy consumption of ironmaking and to reduce or eliminate the introduction of raw flux into the furnace, high-alkalinity sinter is being developed at home and abroad. Handan Iron and Steel blast furnace using 100% sinter, due to “groove area ” (that is, the basicity in the range of 1.0 ~ 2.0 strength weakening area) theory, long-term control of basicity at about 1.0, 100 kg / ton of iron above, the technical and economic indicators compared with advanced enterprises, there is a big gap. March-April 1981. Have carried out in the blast furnace with high and low alkalinity sinter production test, and achieved significant economic results. However, due to some difficulties in management and equipment, it failed to persist. In addition the use of high alkalinity sinter with natural rich ore or acid pellets, but by the local resources and the lack of pelletizing equipment restrictions in the short term is not easy