In the sintering of iron ores, the partial substitution of anthracite coal for coke breeze has been considered to be an effective way of reducing emissions and improvement in sintering properties. In the present study, the combustion characteristics of the anthracite coal and coke breeze were investigated and its influence on product sinter quality and sinter flue gases is being monitored. Pot trials are carried out with different coke breeze ratios, 0%, 40%, 50%, 60%, and 100%. It is found that as the percentage of anthracite coal is increased from 0 to 100%, the sintering time decreased from 24 to 20 min, and the productivity increased from 2.25 to 2.60 t/h/m². Up to 60% anthracite coal substitution Tumbler index (+ 6.3 mm%), Product yield (+ 5 mm%), and fines generation (− 5 mm%) is found 62.29%, 85.17%, and 15.33%; moreover, hematite (Fe₂O₃), magnetite (Fe₃O₄), calcium ferrite phases (CaFe₂O₄, CaFe₃O₅), and Silico ferrite of calcium and aluminum (SFCA) are major mineral phases found during microstructural analysis of product sinter.

在铁矿石的烧结中，部分无烟煤替代焦粉被认为是减少排放和改善烧结性能的有效途径。在本研究中，研究了无烟煤和焦粉的燃烧特性，并监测了其对产品烧结矿质量和烧结烟气的影响。用不同的焦粉比例进行罐试验，0%、40%、50%、60% 和 100%。发现随着无烟煤比例从0增加到100%，烧结时间从24分钟减少到20分钟，生产率从2.25增加到2.60 t/h/m ². 无烟煤替代率高达 60% 不倒翁指数 (+ 6.3 mm%)、产品收率 (+ 5 mm%) 和细粉生成 (- 5 mm%) 分别为 62.29%、85.17% 和 15.33%；此外，赤铁矿（Fe ₂ O ₃）、磁铁矿（Fe ₃ O ₄）、铁酸钙相（CaFe ₂ O ₄、 CaFe ₃ O ₅）和钙铝硅铁氧体（SFCA）是显微组织中发现的主要矿物相产品烧结分析。