摘要
通过建立熔融还原炉氧煤喷枪枪体温度场二维模型,对枪体的温度分布及其影响因素进行了分析。分析结果表明,沿枪体轴向方向,前端温度梯度很大,末端温度梯度明显减小;沿枪体横向方向,枪体温度从外层向内层逐渐降低;提高燃烧温度使枪体温度显著升高;在计算条件下,环缝中粉气比对枪体温度影响很小;煤粉流量及氧气流量对枪体温度分布的影响与有效氧碳比有关。
Through establishing a 2dimension model for the temperature field of the oxygencoal lance in reduction smelter, the temperature distribution of the lance and its affecting factors are analyzed. The results of analysis show: Along axial direction, the temperature gradient of the front of the lance is very big and that far from the front decreases remarkably; along cross direction, the temperature decreases gradually from the outer layer to the inner layer; increasing combustion temperature increases the temperature of the lance substantially; under the calculation condition, powder to gas ratio between the tubes has a little effect on the temperature distribution of the lance; the influences of pulverized coal flow and oxygen flow on the temperature distribution of the lance are correlative with the oxygen to carbon effective ratio.
出处
《钢铁研究学报》
CAS
CSCD
北大核心
1998年第4期5-8,共4页
Journal of Iron and Steel Research
基金
国家科学攀登计划资助项目
关键词
熔融还原
氧煤喷枪
温度场
数学模型
smelting reduction,oxygencoal lance,temperature field,mathematical model