共查询到18条相似文献,搜索用时 93 毫秒
1.
阐述了中国电弧炉发展的现状,分析了炼钢技术的发展趋势及制约我国电弧炉发展的因素。在此基础上介绍了电弧炉炼钢的原料、能源状况,指出未来我国废钢供应量和电能富余量将增加,有利于发展电弧炉炼钢流程。同时分析了新型电弧炉的使用情况,指出了电弧炉炼钢技术的发展趋势。 相似文献
2.
3.
4.
5.
电极调节控制技术是电弧炉冶炼过程控制的一个关键技术,其控制效果直接影响电弧炉的电能消耗、冶炼周期等重要经济性能指标。在分析研究现有电弧炉电极控制技术的基础上,以提升电极调节器整体的响应速度和实现控制手段多样化为目标,开发了新一代电弧炉智能电极调节控制系统,该控制系统具有优化控制策略、最佳工作点自动调整、供电曲线自动跟踪等特点。电弧炉智能电极调节控制系统的开发为提升电弧炉冶炼的稳弧控制、降低生产噪音、减少对电网的谐波干扰等优化电弧炉冶炼生产控制技术提供了有力技术支撑。 相似文献
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
《Energy》2006,31(14):2926-2939
A mathematical simulation tool is presented in order to model enthalpy flow rates of off-gas and heat transfer of cooling systems at dedusting plants in electric steel making sites. The flexibility of the simulation tool is based on a user-defined series of modular units that describe elementary units of industrial dedusting systems, e.g. water-cooled hot gas duct, air injector, drop-out box, mixing chamber, post-combustion chamber, filter, etc. Results of simulation were checked with measurements at industrial electric steel making plants in order to validate the models for turbulence, heat transfer and chemical reaction kinetics. Comparison between computed and measured gas temperature and composition yield excellent agreement. The simulation tool is used to calculate off-gas temperature and volume flow rate, where off-gas measurements are very difficult to apply due to high gas temperatures and high dust load. Heat transfer from the off-gas to the cooling system was calculated in detail for a pressurised hot water EAF cooling system in order to investigate the impact of the cooling system and the dedusting plant operation on the energy sinks of the electric arc furnace. It is shown that optimum efficiency of post-combustion of EAF off-gas in the water-cooled hot gas duct requires continuous off-gas analysis. Common operation parameters of EAF dedusting systems do not consider the non-steady-state of the EAF off-gas emission efficiently. 相似文献
16.
电弧炉电极调节器是电弧炉冶炼作业的心脏,它极大地影响电弧炉工作效率、电能消耗和输入到炉中的有功功率,而决定调节器灵敏度的关键环节是调节器的检测环节,针对检测环节的改进设计进行了专门讨论. 相似文献
17.
《Applied Thermal Engineering》2003,23(17):2255-2267
In this study, the steel production process in the AC electric arc furnace (EAF) is discussed and an exergy analysis has been undertaken for the EAF with scrap preheating for an alloyed steel producer in Turkey.Exergy analysis has been employed to obtain optimum design parameters and operation conditions. In this work; obtained results are compared with measured values and previous literature. 相似文献
18.
简要介绍电弧炉的概念、特点、分类以及国内、外目前的发展方向,给出电弧炉按容量划分类型的方法。分析了目前国产电弧炉容量向大型化发展的必要性,给出目前国产电弧炉进一步发展的两大容量类型,即50t超高功率电弧炉和80t高功率电弧炉,并就其国内成套能力,作了较为详细的分析,得出其国内成套是可行和可靠的。 相似文献