带式焙烧机制备镁质熔剂性球团研究  

Study on magnesia-bearing fluxed pellets production by travelling grate

作　　者：邓睿 DENG Rui(Mineral Processing Engineering Department,Sinosteel Equipment and Engineering Co.,Ltd.,Beijing 100080,China)

机构地区：[1]中钢设备有限公司矿物加工工程部,北京100080

出　　处：《中国冶金》2021年第2期55-59,共5页China Metallurgy

摘　　要：为了提高高炉球团矿入炉比,从而降低钢铁生产能耗,缓解日益严峻的环保形势,基于氧化球团焙烧基础理论,结合相关学者研究成果,对镁质熔剂性球团特性进行分析和梳理,在此基础上对带式焙烧机球团工艺制备镁质熔剂性球团的热工参数进行了研究。结果表明,得益于镁质熔剂性球团的良好技术经济指标,可以实现高炉原料结构中球团矿比例的大幅提高。通过流体力学(CFD)数值模拟和构建物质流和能量流计算模型,对现有带式焙烧机球团工艺的热工参数进行分析,阐明了镁质熔剂性球团制备特点,并论述了带式焙烧机在制备镁质熔剂性球团上的优势。In order to improve the pellets charging ratio in blast furnace, reduce the energy consumption in iron and steel production process and alleviate the increasingly severe environmental protection situation, based on the basic roasting theory of oxidized pellets, the features of magnesia-bearing fluxed pellets are analyzed and combed combined with the relevant academic research results. On the basis of this, the thermal parameter of magnesia-bearing fluxed pellets prepared by the travelling grate process is studied. The results show that the pellet proportion in the blast furnace material structure can be increased greatly due to the good technical and economic index magnesia-bearing fluxed pellets. Through the computational fluid dynamics(CFD) numerical simulation and calculation of material flow and energy flow models, the thermal parameter of the existing travelling grate process is analyzed, the characteristics of magnesia-bearing fluxed pellets production are expounded, and the advantages of travelling grate in the magnesia-bearing fluxed pellets production are discussed.

关 键 词：带式焙烧机 镁质熔剂性球团 物理和冶金特性 热工参数 计算流体力学 

分 类 号：TF046.6[冶金工程—冶金物理化学]