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首页> 外文期刊>Coke and chemistry >Production of Metallurgical Coke from Kazakhstan Coals with Optimal Consumer Properties
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Production of Metallurgical Coke from Kazakhstan Coals with Optimal Consumer Properties

机译：从哈萨克斯坦煤炭生产具有最佳消费特性的冶金焦

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The metallurgical coke produced upon thermal synthesis of coal blends serves as a reducing agent (a fuel reductant) and a heat carrier and also serves to support the burden in the blast furnace. As the fuel, it supplies the heat as well as the gases required for the reduction of iron ore. The requirements for coke quality constantly increase in connection with the necessity of diminishing its consumption and of improving the technical and economic indices of operation of blast furnaces. The steady demand for high-quality metallurgical coke is accounted for by the shortage of coking coals, the resources of which do not exceed 20 percent of the total reserves. At the same time, the quality of coke depends mainly on the quality of the coal blend and the design features of coke-oven batteries and, to lesser extent, on the coking conditions. Therefore, in order to upgrade the quality of coke, much attention in byproduct coke plants is paid to the optimization of the quality and composition of the coal blend.The coal industry in Kazakhstan is traditionally highly developed, this being due to the powerful resources of coking and power-generating coals of Karaganda and Ekibastuz coalfields. The Karaganda metallurgical plant has used, over 35 years, a coal blend composed of 88-90 percent of Karaganda coals of grades KZh and K and 12-10 percent of Kuznetsk gas coals. With the breakup of economical relations, the Ispat-Karmet Stock Company has a feedstock base represented only by Kazakhstan coals, being composed of 95 percent of Karaganda coals KZh and K and 5 percent of long-flame coals of the Shubarkol open-pit.
机译：在煤混合物热合成时产生的冶金焦炭既用作还原剂（燃料还原剂）和载热体，又可以支撑高炉中的负荷。作为燃料，它提供热量以及还原铁矿石所需的气体。随着减少焦炭消耗以及提高高炉操作技术和经济指标的需要，对焦炭质量的要求不断提高。对优质冶金焦的稳定需求归因于焦煤的短缺，焦煤的资源不超过总储量的20％。同时，焦炭的质量主要取决于混合煤的质量和焦炉电池的设计特征，并且在较小程度上取决于焦化条件。因此，为了提高焦炭的质量，副产物焦炭厂非常重视优化混煤的质量和组成。哈萨克斯坦的煤炭工业传统上高度发达，这是由于哈萨克斯坦强大的资源。 Karaganda和Ekibastuz煤田的炼焦和发电煤。卡拉干达冶金厂已使用35年以上的煤炭混合物，该混合物由88-90％的KZh和K级卡拉冈达煤和12-10％的库兹涅茨克气煤组成。随着经济关系的破裂，Ispat-Karmet股份公司拥有仅以哈萨克斯坦煤炭为代表的原料基地，由95％的Karaganda煤炭KZh和K和Shubarkol露天矿的5％长燃煤组成。

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