烧结矿竖式冷却工艺及其工业应用关键问题  

Sinter vertical cooling process and key problems in its industrial application

作　　者：祁腾飞 孙俊杰[3] 许相波[3] 毕传光[3] 张永杰[2] QI Tengfei;SUN Junjie;XU Xiangbo;BI Chuanguang;ZHANG Yongjie(Northeastern University,Shenyang 110819, Liaoning, China;Baoshan Iron & Steel Co. ,Ltd. , Shanghai 201999, China;Shanghai Meishan Iron & Steel Co. ,Ltd. , Nanjing 210039, Jiangsu, China)

机构地区：[1]东北大学,辽宁沈阳110819 [2]宝山钢铁股份有限公司,上海201999 [3]上海梅山钢铁股份有限公司,江苏南京210039

出　　处：《宝钢技术》2021年第4期8-13,共6页Baosteel Technology

摘　　要：概述了烧结矿竖式冷却工艺发展历程,并从吨矿蒸汽回收量、发电量以及减碳、减排量等方面介绍了梅钢烧结矿竖式冷却工艺工业试验进展。研究认为,烧结矿料层空隙率及其分布均匀性对于高温烧结矿与冷却气体的充分接触及换热具有重要意义,烧结矿粒度组成决定了料层空隙率,布料偏析及烧结矿颗粒运动影响料层空隙率大小及均匀性。实际生产中,应确定适宜入炉烧结矿粒度范围,设计偏析改善装置以及保持烧结矿颗粒整体流。The development process of sinter vertical cooling process was summarized,and the industrial test of sinter vertical cooling process of Meisteel was introduced from the aspects of steam recovery,power generation,carbon reduction and emission reduction.This paper hold that the porosity and its distribution uniformity were of great significance for the full contact and heat transfer between high temperature sinter and cooling gas.The sinter size distribution determined the porosity of the bed,and the distribution segregation and sinter movement affected the porosity and its uniformity.In practical production,it is necessary to determine the suitable size range of sinter,design the segregation improvement device and maintain the mass flow of sinter particles.

关 键 词：竖冷炉 空隙率 粒度组成 偏析 颗粒运动 

分 类 号：TF046.4[冶金工程—冶金物理化学]