Abstract
Results are provided for industrial use of Sibantratsit anthracite in the manufacture of high-carbon ferrochrome. Qualitative characteristics are given for anthracite and operating indices for ferroalloy furnaces with the use of this reducing agent. Comparative data are provided for results of anthracite and coke nut physiochemical analysis. Low ash content, low phosphorus and sulfur content, and also high specific electrical resistance of anthracite are established. The use of anthracite in smelting high-carbon ferrochrome in furnaces with power of 21 MVA leads to a reduction in specific consumption of reducing agent and electrical energy. Chromium extraction is almost unchanged. The use of anthracite in more powerful furnaces (63 MVA) makes it possible to increase considerably the operating voltage and reduce specific electrical energy consumption. The phosphorus content in ferrochrome is reduced with an increase in proportion of anthracite in a charge.
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