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The reduction in reactivity of coke associated with increase in its postreactive strength is not always economically beneficial, since it may increase coke consumption.  相似文献   

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The operation of blast furnaces with different coke-nut consumption and coke quality is investigated, with the goal of assessing the effectiveness of coke nuts in blast-furnace smelting. The coke consumption is investigated as function of the coke-nut consumption and the coke wear M 10. Uniform blast-furnace operation is possible when the coke-nut consumption is no more than 20 kg/t, with satisfactory coke quality (M 10 must be no more than 9.0%). The mean the mean rate of replacement of coke by coke nuts is 0.67 kg/kg of nuts.  相似文献   

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The correlation between the characteristics of coke is considered for the example of test data from OAO Tulachermet. A new characteristic is proposed.  相似文献   

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The relation between the thermal stability of coke and blast-furnace performance is discussed.  相似文献   

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A means of assessing the influence of the blast-furnace parameters on coke consumption and productivity has been developed, in the course of updating the standard document regarding blast-furnace coke consumption for use in Russia, Ukraine, and Kazakhstan. The new edition has been significantly refined on the basis of analytical and experimental research and operational experience with blast furnaces.  相似文献   

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The quality of coke has a strong effect on the performance indices of a blast furnace. For a furnace to operate with high productivity and a low coke rate, it is necessary to use coke with high strength characteristics. The Novolipetsk Metallurgical Combine has conducted studies of the effect of coke quality on the operation of blast furnaces of different sizes. The quality of the coke was evaluated on the basis of the following indices: CSR, CRL, the cold-strength indices M10 and M25, and the integral coke-quality index Ig.c used by the Sidmar company. Furnace productivity, coke rate, and the totterman index (DMI) were also used for the sake of comparison.  相似文献   

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