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一、引言近年来,由于高炉冶炼技术的不断发展,特别是4000—5000米~3巨型高炉的相继问世,对于入炉原料提出了愈来愈高的要求。不仅要求入炉原料具有良好的低温还原性能和常温性能,同时必须具有良好的高温冶金性能。从高炉冶炼的角度出发,原料具有良好的高温性能比常温性能更为重要。因此,很多国家开展了旨在改善烧结矿、球团矿高温冶金性能的研究。特别是日本,高炉向大型化发展极为迅速,几乎所有的高炉有效容积都在2000—5000
I. INTRODUCTION In recent years, due to the continuous development of blast furnace smelting technology, especially the 4000-5000m ~ 3 giant blast furnace have come out one after another, putting forward higher and higher requirements for the raw materials into the furnace. Not only requires raw materials into the furnace has good low temperature reduction properties and room temperature properties, at the same time must have good high temperature metallurgical properties. From the blast furnace smelting point of view, raw materials have good high temperature performance is more important than the room temperature performance. Therefore, many countries have carried out research aimed at improving the pyrometallurgical properties of sinter and pellet. Especially in Japan, the blast furnace to the large-scale development is extremely rapid, almost all of the blast furnace effective volume in 2000-5000