WU Peng-fei
,
XU An-jun
,
TIAN Nai-yuan
,
HE Dong-feng
钢铁研究学报(英文版)
Combined with the parameters of the production process of a steel factory, numerical simulations for a new ladle from preheating to turnover are conducted using the finite element analysis system software (ANSYS). The measured data proved that the simulated results are reliable. The effects of preheating time, thermal cycling times, and empty package time on steel temperature are calculated, an ideal preheating time is provided, besides, based on the analysis of a single factor and use the nonlinear analysis method, a steel temperature compensating model with diversified coupling factors is proposed, with the largest error of the present coupling model at 1462 ℃, and the errors between actual and target steel temperature in tundish after the model is applied to practical production are basically controlled within ±6 ℃, which can meet the accuracy of the manufacturer and has a practical guiding significance for the production in steelmaking workshops.
关键词:
ladle
,
thermal state
,
multiple-factor coupling
,
numerical simulation
,
compensation model
陈红，吕永康，张继斌，杨锦文
钢铁
运用钢包运行周期方法详细统计了钢包在各环节的停留时间,研究了温降规律，计算出钢包运行周期和合理钢包运行个数，并发现钢包运行期间存在的主要问题是：钢包实际投入运行的个数较多,空包运行时间较长，在线烘包时间较短。通过对钢包运行的优化控制，不但缩短了钢包运行的周期，确定出合理的钢包运行个数，而且使空包运行速度加快，钢包运行的工序时间缩短了10min，基本实现了正常生产情况下的红包出钢。钢包的运行控制对节省能源、降低钢包个数，特别是稳定和降低钢水的浇铸温度、促进连铸的顺行和提高铸坯的质量均有着重要意义。
关键词:
钢包
,
running
,
statistics analysis
,
optimization
吴亚夫
,
贺东风
,
徐安军
,
田乃媛
钢铁研究学报
为优化某厂的钢包烘烤制度，耦合了烘烤过程中流体流动、燃烧和换热过程，建立了用于数值计算的三维数学模型，利用计算流体力学软件FLUENT，采用有限差分方法和修正的速度-压力耦合算法SIMPLEC，计算了钢包内的燃烧现象，重点分析了不同煤气流量下钢包内煤气燃烧温度场的变化规律，并进行了试验验证。结果表明，煤气流量800 m3/h时，烘烤温度较为理想，并且烘烤均匀性好，是提高炉壁温度的最佳流量，计算结果与试验结果基本吻合。提出了可供现场参考的烘烤工艺参数。
关键词:
钢包
,
baking
,
numerical simulation
