项目名称: 高炉燃烧带温度场重建及炉缸工作均匀性评价系统
项目编号: No.61271303
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 无线电电子学、电信技术
项目作者: 程树森
作者单位: 北京科技大学
项目金额: 80万元
中文摘要: 钢铁工业是国民经济基础工业,炼铁耗能占其70%以上。提高高炉喷煤量是其高效、节能、环保及绿色的重要举措。高炉燃烧带温度场及炉缸工作均匀性是提高喷煤量及保障高炉顺行的决定性因素之一。一座高炉炉缸沿周向有20到30个左右燃烧带。燃烧带燃烧主要是焦炭与煤粉颗粒在有限体积内不完全气固燃烧,并伴有渣铁滴落,理论燃烧温度高达2000度以上。本项目在提出燃烧带有限角不完全数据温度场重建概念的基础上,建立燃烧带气相、焦炭颗粒相、煤粉颗粒相、渣及铁滴流动、传热、传质、燃烧及辐射传热"正问题"数学模型,进行数值模拟,提取影响燃烧带温度场主要参数及关系,结合燃烧带产物辐射特性研究及专家启发经验对燃烧带温度场重建(反问题)数学模型进行全局与局部寻优求解。开发高炉燃烧带温度场重建及炉缸工作均匀性评价系统。本项目涉及冶金学、多相化学反应流体力学、传热学、燃烧学、计算科学、光学成像、信息科学及图像处理等多学科知识。
中文关键词: 高炉燃烧带;检测系统;温度场分布;均匀性评价体系;
英文摘要: More than 70% of the energy consumption of the iron & steel industry, which is basic industry ofthe national economy, comes from ironmaking process. Increasing PCI rate of blast furnace is an important measure which can make iron & steel industry more efficient, energy saving and green. Combustion zone temperature field of blast furnace and working uniformity of hearth is one of determining factors of increasing PCI rate and blast furnace smooth running. Along the circumference direction of BF hearth has about 20 to 30 combustion zone. Burning in combustion zone,in which theoretical combustion temperature is higher than 2000℃, is mainly incomplete gas-solid burning of coke and pulverized coal particles in limited volume, accompanied with dripping of liquid iron and slag. On the basis of proposing the concept of finite angle incomplete data temperature field rebuilding of combustion zone, this project will build "non-inverse problem" of gas phase, coke particle phase, pulverized coal particle phase, flow, heat and mass transfer, and combustion of liquid iron and slag drops and simulate. In this process, extract influential parameters and relationship of combustion zone temperature field, and combining with the research on radiation characteristics of combustion products and experts inspired experience, solve th
英文关键词: Combustion zone of blast furnace;Detecting system;Temperature field;Uniformity evaluation system;