Abstract

The production of magnesia pellets is developing in mining enterprises, especially in the context of tightening environmental standards and a decrease in sinter production. In the course of the work, it was determined that from the peculiarities of pellet structure formation, the dolomite influence is manifested in a change in both the thermal conditions of firing (the endothermic effect increases with the decomposition of carbonates) and the mineral composition of the fired product. From the point of view of metallurgical properties, MgO contributes to an increase in the strength upon reduction, as well as an increase in carbonates content in the charge leads to an increase in porosity and reducibility. In general, the use of dolomite makes it possible to improve the quality of iron ore pellets by increasing their metallurgical properties.

中文翻译：

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JSC Mikhailovsky GOK以AV Varichev命名时，白云石熔炼铁矿石球粒的结构和冶金性能的演变

摘要

采矿企业正在发展氧化镁球团矿的生产，特别是在严格的环境标准和烧结矿产量下降的背景下。在工作过程中，从丸粒结构形成的特殊性可以确定，白云石的影响体现在焙烧的热条件（吸热效果随碳酸盐的分解而增加）和矿物组成的变化上。烧制的产品。从冶金性能的观点来看，MgO有助于还原时强度的增加，以及装料中碳酸盐含量的增加导致孔隙率和还原性的增加。通常，白云石的使用使得可以通过提高其冶金性能来改善铁矿石球团的质量。