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(一)概述 合理的炉料结构及炉料良好的冶金性能是实现高炉冶炼高产、优质、低耗、长寿的物质基础。为解决攀钢高炉冶炼高钛型钒钛磁铁矿炉渣变稠及“泡沫渣”等问题,过去的工作已从理论上对“泡沫渣”产生的原因、机理进行了很多研究。在生产实践中用配加部分普通块矿将渣中TiO_2降到25％以下,基本消除了“泡沫渣”,使冶炼高钛型钒钛磁铁矿的高炉各项技术经济指标显著上升。目前这种炉料结构对消除“泡沫渣”、提高冶炼强度起到了很大的作用,但也存在一些问题,
(A) Overview Reasonable charge structure and charge Good metallurgical properties are the material basis to achieve high yield, high quality, low consumption and longevity in blast furnace smelting. In order to solve the problem of thickening slag and “foam slag” of high-titanium vanadium titanomagnetite from blast furnace in Panzhihua Iron and Steel Group, many researches have been done on the causes and mechanism of “foam slag” theoretically in the past. In the practice of production, some common lump ore is used to reduce the content of TiO_2 in slag to less than 25% and basically eliminate the “foam residue”, so that the technical and economic indexes of blast furnaces for smelting high-titanium vanadium-titanium magnetite are significantly increased. At present, the charging structure has played a significant role in eliminating “foam residue” and improving the smelting strength. However, there are still some problems,