中南大学学报（自然科学版）2016，Vol.47Issue(5)：1480-1486,7.DOI:10.11817/j.issn.1672-7207.2016.05.004
氧气高炉新型氧煤燃烧器设计参数对风口区流场影响数值模拟
Numerical analysis of flow behavior in tuyere and raceway of oxygen blast furnace with new type of oxy-coal burner
摘要
Abstract
Oxygen blast furnace can effectively reduce CO2emissions by two means, pulverized coal injection and recycling of CO2-removed blast furnace gas. To study the velocity fieldamongthe tuyere and raceway region, a three-dimensional modelwasbuildupusing the commercial CFD software. The factors these numerical simulations mainly focus on the number of oxygen-coal lances, the angle and distance between the blowpipe and oxy-coal lances. Numerical results show that increasing angle between the blowpipe and oxy-coal lance from 7° to 15° results in lower velocity when the oxy-coal lanceisset above the blowpipe,the appropriate angle is 9°. When the lance is located below the blowpipe, the bigger the angle is, the deeper the raceway will be.Inaddition, when theoxy-coal burner has two lances, the lances are set at two sides of the blowpipe, i.e. vertical and horizontal distribution around the blowpipe, and the reasonable angles are 11° and 13°.Besides,the suitable distance between the blowpipe and oxy-coal lance is 75mm when the oxy-coal lanceisset above the blowpipe.关键词
氧气高炉/氧煤燃烧器/设计参数/风口回旋区/数值模拟Key words
oxygen blast furnace/oxy-coal burner/design parameters/raceway/numerical simulation分类
矿业与冶金引用本文复制引用
张超,张建良,孙辉,刘征建..氧气高炉新型氧煤燃烧器设计参数对风口区流场影响数值模拟[J].中南大学学报（自然科学版）,2016,47(5):1480-1486,7.基金项目
国家自然科学基金委员会与宝钢集团有限公司联合资助项目(51134008)；国家重点研究发展计划(973计划)资助项目(2012CB720401)(Project(51134008)supported by the National Natural Science Foundation of China andBaosteel Group Corporation （51134008）
Project(2012CB720401) supported by the NationalKeyResearch andDevelopmentProgram (973 Program) of China) （2012CB720401）
