大型带式焙烧机球团技术装备设计与应用  

Design and application on pelletizing technologies and equipments in large-scale belt type roasting machine

作　　者：张福明 张卫华[2] 青格勒 王渠生[2] 韩志国[2] ZHANG Fuming;ZHANG Weihua;QING Gele;WANG Qusheng;HAN Zhiguo(Shougang Group Co.,Ltd.,Bejing 100041,China;Beijing Shougang International Engineering Technology Co.,Ltd.,Beijing 100043,China;Research Institute of Technology,Shougang Group Corporation,Beijng 100041,China)

机构地区：[1]首钢集团有限公司,北京100041 [2]北京首钢国际工程技术有限公司,北京100043 [3]首钢集团有限公司技术研究院,北京100041

出　　处：《烧结球团》2021年第1期66-75,共10页Sintering and Pelletizing

基　　金：国家重点研发计划项目(2017YFB0304302)。

摘　　要：球团矿是高炉炼铁的优质炉料,发展球团技术是实现低碳绿色炼铁的重要途径之一。首钢京唐为实现5500 m^(3)高炉的稳定顺行和低碳冶炼,大力提高球团矿的入炉比率、冶金性能和产品质量,确定了以球团矿为主的炉料结构,设计二期工程球团矿入炉比率为55%~70%,并相继设计建造了3条400万t/a带式焙烧机球团生产线。本文主要探讨了现代高炉炉料结构的演化发展趋势,提出了低碳绿色球团生产的发展理念,研究分析了带式焙烧机球团生产工艺的特点和适用性,并在阐述对带式焙烧机球团工艺流程设计优化的同时,重点介绍了首钢京唐带式焙烧机球团工程设计中应用的先进技术和关键装备,如球团工程能量高效转换、高效燃烧-传热系统、节能减排和智能化控制等方面的设计创新,以及往复式布料器等主要设备的设计开发和应用效果,以期为类似工程提供借鉴与参考。With pellet as a high quality burden for blast furnace ironmaking,developing pelletizing technology becomes one of the important approaches to make low-carbon and green ironmaking available.In order to achieve the stable and smooth production,as well as low carbon smelting in the 5500 m^(3) blast furnace of Shougang Jingtang,the charging ratio in burden,metallurgical performance and quality of the pellet are improved greatly,and the burden structure dominated by pellets is determined.The design on the ratio of pellet into furnace of 55%~70%in Phase II Project is reached,and 3 production lines of belt type roasting machine with 4 million t/a capacity is constructed consequently.The evolution and development trends of the modern blast furnace burden structure is mainly discussed,the developing concept of low-carbon green pelletizing production is proposed,and the characteristics and applicability on pelletizing production process of belt type roasting machine are studied and analyzed.With the introduction of the optimized design of pelletizing process flow of belt type roasting machine,the advanced technologies and key equipments in the design of Shougang Jingtang pelletizing engineering of belt type roasting machine are highlighted,such as energy efficient conversion of pelletizing engineering,high efficiency combustion-heat transfer system,energy saving and emission reduction,intelligent control and other innovation designs,as well as such design,development and application effects on main equipments as reciprocating distributor,etc.It is hoped that the results can provide references for similar engineering construction.

关 键 词：球团 带式焙烧机 大型 装备设计 先进技术 

分 类 号：TF046.6[冶金工程—冶金物理化学]