With the importance of the steelmaking industry in the economy and its negative impacts on the environment, reducing dust emissions is a vital focus in this field. Thus, the theory of dust generation in converter steelmaking process was analyzed and the influence of bottom blowing oxygen on dust generation was obtained through experimental research. The industrial test was carried out in a 120-t bottom combined blown O₂–CaO steelmaking converter. The results show that lowering the lance position can reduce the amount of dust. This emission rate of the converter is also found to be in direct proportion to the decarburization rate. As a result, the proposed bottom blowing O₂–CaO steelmaking converter can technically reduce the amount of dust and improve the recovery rate of iron. With more bottom blowing oxygen, the dust content is lower with the dust peak appearing earlier. The evaporation theory, followed by the bubble theory, plays the primary role in the dust generation of bottom blowing oxygen steelmaking. It points out the direction for the technology research and development of reducing dust generation.

鉴于炼钢工业在经济中的重要性及其对环境的负面影响，减少粉尘排放是该领域的重要重点。因此，对转炉炼钢过程中粉尘产生的理论进行了分析，并通过实验研究得到了底吹氧对粉尘产生的影响。工业试验是在120吨底部混合吹制O ₂ -CaO炼钢转炉中进行的。结果表明，降低喷枪位置可以减少粉尘量。还发现转炉的该排放速率与脱碳速率成正比。结果，建议的底部吹气O ₂–CaO炼钢转炉可以从技术上减少粉尘量并提高铁的回收率。随着底部吹入氧气的增加，粉尘含量降低，粉尘峰值出现得更早。蒸发理论，随后是气泡理论，在底吹氧气炼钢的粉尘产生中起主要作用。指出了减少粉尘产生的技术研发方向。