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在烧结混合料中添加石灰以代替部分石灰石的技术在一些国家(如苏联、波兰、日本、西德、巴西等)的许多烧结厂得以应用;法国沿海的一些烧结厂也用此技术来提高烧结矿碱度。本文综合这些生产结果和近年来IRSID(法国黑色冶金研究所,本文均同。)在工业和实验室实验中所取得的结果,着重阐明以下几点: ——添加石灰可以大大提高生产率,最佳效果可达30%。提高生产率的具体效果(每添加1%的石灰可提高生产率5～15%),视烧结条件、石灰性质和添加方式等情况不同而异,另外,添加石灰对其他因素影响不大; ——在某种情况下,添加石灰会引起烧结矿冷态强度降低,这种情况可以通过提高料层厚度得以弥补; ——从产量来看,因为石灰添加后会使混合料成球性好以至焙烧时透气性也好,使产量得以提高。
The technology of adding lime to the sinter mix instead of part of the limestone has been applied in many sinter plants in some countries (such as the Soviet Union, Poland, Japan, West Germany, Brazil, etc.); some sintering plants along the coast of France have also used this technique to increase the sintering Alkalinity. This paper summarizes these production results and recent IRSIDs (the Black Institute of Metals, France, all of the same text in this article). The results achieved in industrial and laboratory experiments focus on the following points: - Lime can be added to greatly increase productivity, best The effect can reach 30%. Depending on the sintering conditions, the nature of the lime and the method of addition, the specific effect of increasing the productivity (5% to 15% for every 1% addition of lime) and the addition of lime has little effect on other factors; In some cases, the addition of lime causes the cold strength of the sinter to be reduced. This can be compensated by increasing the thickness of the material. - From the standpoint of output, Breathability Ye Hao, so that production can be improved.