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精料是使高炉炉况顺行,获得良好技术经济指标的重要物质基础。随着生产的发展,精料所包含的内容也在日趋完善,高炉合理炉料结构的探讨即其一例。新日铁为宝钢高炉设计的炉料结构模式是:85%的碱度为1.55～1.75的烧结矿、10%的富块矿和5%的酸性球团矿。这种模式与50年代从苏联引入的模式迥然不同。当时认为:使用100%自熔性烧结矿,完全去掉石灰石,是理想的炉料结构。因此在相当长一段时期内都使用碱度为1.0～1.3的自熔性烧结矿。这种模式可以鞍钢高炉的炉料结构为
Concentrate is to make the blast furnace furnace conditions, access to good technical and economic indicators of an important material basis. With the development of production, the content of fine material is also getting more and more perfect. The blast furnace reasonable charge structure is one example. The structure pattern of the charge designed by Nippon Steel for Baosteel’s blast furnace is 85% sinter with basicity of 1.55-1.75, 10% rich lump ore and 5% acidic pellets. This model is quite different from that introduced in the 1950s from the Soviet Union. At that time: the use of 100% self-fluxing sinter, complete removal of limestone, is the ideal charge structure. Therefore, for a long period of time are used alkalinity of 1.0 to 1.3 self-fluxing sinter. This model can be Anshan Iron and Steel blast furnace charge structure