【摘要】 利用RH的水力学模型,分析了冶金操作参数和喷吹方式对单管RH和双管RH的RH真空溶氧和脱碳行为的影响。水模型结果表明:随着单管RH底吹气体流量的增大,二氧化碳的吸收速率和容积传质系数呈现先增大后保持不变的规律;提高单管RH顶吹气量能提高容积传质系数;增大单管RH真空度能提高二氧化碳的吸收和释放速率;单管双喷嘴RH的溶氧和脱碳效率要比传统双管侧吹RH提高26%和32%;对于单管RH,双喷嘴RH的脱碳效率要高于单喷嘴RH;对于双管RH,采用侧底复吹方式能够促进传质,提高脱碳效率。更多还原

【Abstract】 RH water model is applied to study the metallurgical operation parameters,the effect of blowing method on the vacuum oxygen absorption and decarburization in single snorkel RH and two snorkel RH. Water model results show that,with the increase of the bottom blown gas flow rate,the absorption rate for carbon dioxide and the volume mass transfer coefficient increase at first,and then keep unchanged. The increase of top blowing gas flow rate can prompt the volume mass transfer coefficient in single snorkel RH. The increase of vacuum degree can increase the adsorption and release rate of dioxide in single snorkel RH. Compared with traditional two snorkel RH,the decarburization rate and the oxygen absorption rate in single snorkel RH increase 26% and 32%,respectively. For single snorkel RH,the decarburization rate in the case of dual plug is greater than that in the case of single plug. For the two snorkels RH,side-bottom blowing method can improve mass transfer,and enhance the decarburization rate.更多还原