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1.发明授权
公开(公告)号：US4257806A
公开(公告)日：1981-03-24
申请号：US959241
申请日：1978-11-09
CPC分类号： C22B1/2406 , C22B1/245 , Y10T428/12479
摘要： Fired iron-ore pellets are disclosed which are prepared by crushing iron ore to be pelletized, mixing a carbonaceous material of grain sizes ranging from 0.1 to 3 mm in diameter to the crushed iron ore in an amount of up to 4% by weight, pelletizing the mixture thus prepared, and firing the resulting pellets; thereby providing pellets throughout each of which is dispersed macro-pores of sizes ranging from 0.1 to 3 mm in diameter at a ratio of up to 25% relative to all pores contained in each pellet.
摘要翻译： 公开了通过粉碎要造粒的铁矿石制备的焙烧铁矿石颗粒，将直径为0.1至3mm的粒状碳素材料与至多4重量％的粉碎铁矿石混合，造粒 如此制备的混合物，并烧制所得颗粒; 从而提供颗粒，其中每个颗粒是相对于每个颗粒中包含的所有孔的直径为0.1至3mm的分散大孔，其比例高达25％。
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公开(公告)号：US4231797A
公开(公告)日：1980-11-04
申请号：US1837
申请日：1979-01-08
CPC分类号： C22B1/2406 , C22B1/245 , Y10T428/12479
摘要： Fired iron-ore pellets are disclosed which are prepared by crushing iron ore to be pelletized, mixing a carbonaceous material of grain sizes ranging from 0.1 to 3 mm in diameter to the crushed iron ore in an amount of up to 4% by weight, pelletizing the mixture thus prepared, and firing the resulting pellets; thereby providing pellets throughout each of which is dispersed macro-pores of sizes ranging from 0.1 to 3 mm in diameter at a ratio of up to 25% relative to all pores contained in each pellet.
摘要翻译： 公开了通过粉碎要造粒的铁矿石制备的焙烧铁矿石颗粒，将直径为0.1至3mm的粒状碳素材料与至多4重量％的粉碎铁矿石混合，造粒 如此制备的混合物，并烧制所得颗粒; 从而提供颗粒，其中每个颗粒是相对于每个颗粒中包含的所有孔的直径为0.1至3mm的分散大孔，其比例高达25％。
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公开(公告)号：US4273577A
公开(公告)日：1981-06-16
申请号：US68582
申请日：1979-08-22
申请人： Isao Fujita , Nobuyuki Imanishi , Tadao Tsutaya , Ryo Watanabe , Takao Kawai
发明人： Isao Fujita , Nobuyuki Imanishi , Tadao Tsutaya , Ryo Watanabe , Takao Kawai
摘要： The present invention discloses a blast-furnace operation method which comprises selecting three factors, i.e. the oxygen volume in blast, the ore/coke and the reducibility of the burden materials as control factors from among these which participate in the variation of heat input and heat output of blast furnace, plotting values of these three factors obtained from the practical operation of efficient blast furnaces on a graph consisting of three parallel axes indicating the three factors, evaluating the conditions of furnace heat with reference to a balanced state of the three plotted factors and adjusting one or more of the three factors in the furnace so all will lie within a suitable range thereby balancing the furnace heat.
摘要翻译： 本发明公开了一种高炉操作方法，其中包括选择三种因素，即鼓风中的氧气体积，矿石/焦炭和负荷材料的还原性作为参与热输入和热量变化的控制因素 高炉输出，从三个平行轴组成的曲线图上，从高效高炉的实际操作中获得的这三个因子的值绘制，参照三个因子的均衡状态来评估炉热条件 并且调整炉中的三个因素中的一个或多个因素都将在合适的范围内，从而平衡炉热。
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