《工程科学学报》录用稿，htps:/doi.org/10.13374/i,issn2095-9389.2021.01.21.002©北京科技大学2020 工程科学学报DO: 烟气循环烧结热风罩内气流数值模拟及优化 罗云飞)，龙红明2，赵利明)，周江虹，余正伟)，王毅璠区 1)安徽工业大学治金工程学院，安徽马鞍山2430322)治金工程与资源综合利用安徽省重点实验室（安徽王 安徽马鞍山243002 3)宝钢湛江钢铁有限公司炼铁厂，广东湛江5240004)马鞍山钢铁股份有限公司，安徽马鞍山243002 ☒通信作者，E-mail:ahutwyf(@l63.com: 摘要烟气循环技术是基于部分热废气被再次引入烧结过程的原理而开发的一种新型烧结模式，对提高烧结余热利 用率、降低污染物排放和烧结能耗具有显著效果。但循环烟气在烟气罩内流动状态、烟气罩漏风状况等对烟气循环的 效果及稳定性至关重要。为此，对某钢厂循环烟气罩内烟气流动状态及漏风伏况迸行模拟，结果表明：现有烟气罩 人孔打开时虽然在一定程度上削弱了烟气进入形成漩涡的强度，但并改善烟气旋转流动，导致料面上烟气流速不 均：通过优化烟气罩内导流板结构和数量，削弱了烟气罩内烟气旋装流窈，明显改善了循环烟气的流动，使烟气分 布更均匀：同时烟气罩漏风状况大大改善，优化后使A侧漏众) 1.2m3s变为吸风2.4m3s,有利于烧结生 产的顺行。 关键词烧结：烟气罩：烟气循环：漏风：流动状态 分类号TF046.4 Numerical simulation and optimization of the flow in the sintering flue gas circulating hot air hood LUO Yun-fei,LONG Hong-ming ZHAO Li-ming,ZHOU Jiang-hong",YU Zheng-wei,WANG Yi-fa 1)School of Metallurgical Engineering, University of Technology,Maanshan 243002,China; 2) Anhui Province Key Laboratory lurgy Engineering Resources Recycling (Anhui University of Technology),Maanshan 243002, China, 3) Baosteel Zhanjiang Tron and Steel Co.,Ltd.Ironmaking Plant,Zhanjiang 524000,China; 4) Maanshan Iron and Steel Go.,Ltd.,Maanshan 243002,China Corresponding author.E-mail:ahutwyf@163.com ABSTRACT The fluegas circulation technology is a new type of sintering mode developed based on the principle that part of the hot exhaust gas is re-introduced into the sintering process.It has significant effects on improving the utilization rate of sintering waste heat,reducing pollutant emissions and sintering energy consumption.However,the circulating flue gas flow state in the flue gas hood and the air leakage of the flue gas hood are very important to the effect and stability of the flue gas circulation,and at the same time have a significant impact on the quality indicators of the sintered ore.In order to optimize the circulating flue gas flow state in the flue gas hood,improve the air leakage of the flue gas hood,and then give full play to the advantages of low pollution and low emission of the flue gas circulation sintering technology,the flue gas flow status in 1收稿日期：2021-01-0X 善金项目：国家自然科学基金面上资助项目(51674002)工程科学学报 DOI: 烟气循环烧结热风罩内气流数值模拟及优化1 罗云飞 1)，龙红明 1,2)，赵利明 3)，周江虹 4)，余正伟 1)，王毅璠 1) 1) 安徽工业大学冶金工程学院，安徽 马鞍山 243032 2) 冶金工程与资源综合利用安徽省重点实验室（安徽工业大学），安徽马鞍山 243002 3) 宝钢湛江钢铁有限公司炼铁厂，广东 湛江 524000 4) 马鞍山钢铁股份有限公司，安徽 马鞍山 243002  通信作者，E-mail: ahutwyf@163.com； 摘 要 烟气循环技术是基于部分热废气被再次引入烧结过程的原理而开发的一种新型烧结模式，对提高烧结余热利 用率、降低污染物排放和烧结能耗具有显著效果。但循环烟气在烟气罩内流动状态、烟气罩漏风状况等对烟气循环的 效果及稳定性至关重要。为此，对某钢厂循环烟气罩内烟气流动状态及漏风状况进行模拟，结果表明：现有烟气罩 人孔打开时虽然在一定程度上削弱了烟气进入形成漩涡的强度，但并未改善烟气旋转流动，导致料面上烟气流速不 均；通过优化烟气罩内导流板结构和数量，削弱了烟气罩内烟气旋转流动，明显改善了循环烟气的流动，使烟气分 布更均匀；同时烟气罩漏风状况大大改善，优化后使 A 侧漏风口由漏风 1.2 m3 ·s -1变为吸风 2.4 m3 ·s -1，有利于烧结生 产的顺行。 关键词 烧结；烟气罩；烟气循环；漏风；流动状态 分类号 TF046.4 Numerical simulation and optimization of the flow in the sintering flue gas circulating hot air hood LUO Yun-fei1) , LONG Hong-ming1,2) , ZHAO Li-ming3) , ZHOU Jiang-hong4) , YU Zheng-wei1) , WANG Yi-fa1)  1) School of Metallurgical Engineering, Anhui University of Technology, Maanshan 243002, China; 2) Anhui Province Key Laboratory of Metallurgy Engineering & Resources Recycling (Anhui University of Technology), Maanshan 243002, China; 3) Baosteel Zhanjiang Iron and Steel Co., Ltd. Ironmaking Plant, Zhanjiang 524000, China; 4) Maanshan Iron and Steel Co., Ltd., Maanshan 243002, China  Corresponding author, E-mail: ahutwyf@163.com ABSTRACT The flue gas circulation technology is a new type of sintering mode developed based on the principle that part of the hot exhaust gas is re-introduced into the sintering process. It has significant effects on improving the utilization rate of sintering waste heat, reducing pollutant emissions and sintering energy consumption. However, the circulating flue gas flow state in the flue gas hood and the air leakage of the flue gas hood are very important to the effect and stability of the flue gas circulation, and at the same time have a significant impact on the quality indicators of the sintered ore. In order to optimize the circulating flue gas flow state in the flue gas hood, improve the air leakage of the flue gas hood, and then give full play to the advantages of low pollution and low emission of the flue gas circulation sintering technology, the flue gas flow status in 1收稿日期:2021-01-0X 基金项目: 国家自然科学基金面上资助项目(51674002) 《工程科学学报》录用稿，https://doi.org/10.13374/j.issn2095-9389.2021.01.21.002 ©北京科技大学 2020 录用稿件，非最终出版稿