辽宁某铁矿石铁品位为28.74%,铁主要以赤铁矿形式存在。为确定矿石合理碎磨工艺流程,进行了矿石粉碎特性研究。磨矿功指数试验表明,矿石Bond球磨功指数为8.66 k Wh/t,属中硬矿石且易磨,可采用自磨工艺。为进一步考察矿石在自磨(半自磨)...辽宁某铁矿石铁品位为28.74%,铁主要以赤铁矿形式存在。为确定矿石合理碎磨工艺流程,进行了矿石粉碎特性研究。磨矿功指数试验表明,矿石Bond球磨功指数为8.66 k Wh/t,属中硬矿石且易磨,可采用自磨工艺。为进一步考察矿石在自磨(半自磨)机中的粉碎特性,进行了冲击粉碎试验和磨蚀粉碎试验。结果表明:矿石抗冲击粉碎作用模型为t_(10)=80.82×(1-e^(-0.53×Ecs)),其A×b值为42.8,抗冲击粉碎能力属于中硬范畴;磨蚀指数Ta值为0.28,抗磨蚀能力属于硬的范畴。试验结果可以为该矿石合理碎磨方式的选择提供基础数据支撑。展开更多
China has long been a coal-based energyconsumption country.The coal's combustion process andits particle size are closely related.Because there are stilldifficulties in understanding and mastering the energyconsum...China has long been a coal-based energyconsumption country.The coal's combustion process andits particle size are closely related.Because there are stilldifficulties in understanding and mastering the energyconsumption of comminution,the economic fineness tobalance comminution and burning is mainly obtainedaccording to experience.With the increasingly wide andextensive use of coal,the energy consumption of coalcomminution has been paid more and more attention.Inthis paper,the research on energy consumption ofcomminution is analyzed and summarized to provide areference for the energy consumption of coalcomminution.展开更多
文摘辽宁某铁矿石铁品位为28.74%,铁主要以赤铁矿形式存在。为确定矿石合理碎磨工艺流程,进行了矿石粉碎特性研究。磨矿功指数试验表明,矿石Bond球磨功指数为8.66 k Wh/t,属中硬矿石且易磨,可采用自磨工艺。为进一步考察矿石在自磨(半自磨)机中的粉碎特性,进行了冲击粉碎试验和磨蚀粉碎试验。结果表明:矿石抗冲击粉碎作用模型为t_(10)=80.82×(1-e^(-0.53×Ecs)),其A×b值为42.8,抗冲击粉碎能力属于中硬范畴;磨蚀指数Ta值为0.28,抗磨蚀能力属于硬的范畴。试验结果可以为该矿石合理碎磨方式的选择提供基础数据支撑。
文摘China has long been a coal-based energyconsumption country.The coal's combustion process andits particle size are closely related.Because there are stilldifficulties in understanding and mastering the energyconsumption of comminution,the economic fineness tobalance comminution and burning is mainly obtainedaccording to experience.With the increasingly wide andextensive use of coal,the energy consumption of coalcomminution has been paid more and more attention.Inthis paper,the research on energy consumption ofcomminution is analyzed and summarized to provide areference for the energy consumption of coalcomminution.
