In present study,a mathematical model coupling the gas flow and the combustion of pulverized coal and furnace gas were developed to study the reduction rate of raw material in the rotary kiln,in which
资源是人类社会发展的基石,开发复合铁矿资源冶炼技术对于提高我国铁矿石自给率、保证钢铁工业的健康发展具有重要意义.基于硼铁矿资源综合利用的现状和转底炉珠铁工艺的基本特点,提出了含碳球团还原熔分综合利用硼铁精矿的新工艺.在实验室条件下,以硼铁精矿和无烟煤为原料，进行了还原熔分和熔分产物基本特性的探索性研究,发现：wc/wo=1.2,焙烧温度为1400℃,焙烧时间为15 min时,渣铁分离彻底,得到含硼
In order to improve the efficiency of slag and iron separationa new idea of "rapid reduction and carburization in lower temperature and adjustment of slag structure to realize the separation of slag (
In recent years,to product ultra-low carbon steel,vaucuum refining processes are widely used for deep decaburization,desulfurization and so on.In the processe of decaburization,the CO is separated out
Hatch developed the patented Continuous Reduced Iron Steelmaking Process ( CRISP) as a response to the changing needs of the steel industry.The key incentives for this novel,patented technology are im
A coupled model with computational fluid dynamics and population balance model to investigate the non-metallic inclusions behavior including growth,size distribution and removal in gas-stirred ladles
Non-metallic inclusions are considered to play an important role on the quality of steel products.Effect of non-metallic inclusions on the quality of steel products is determined by its state in the f
Mould fluxes play a crucial role in continuous casting process.During casting operation,fluorine in mould fluxes tends to react with moisture to form HF evaporation,which is harmful to human health an
Submerged Arc Furnace is used in reduction of nickel oxide mine.In this paper,a 3D finite element model was developed to analyze current density field and Joule heating field for electrodes,arc,burden
为了建立一个描述任意波形脉冲磁场下电磁力特性的通用数学模型,利用数学解析法推导建立任意波形周期脉冲电磁力的模型和理论解.利用此模型考察了三角脉冲磁场下电磁场和电磁力周期变化规律、脉冲频率和占空比对电磁力的影响.结果表明，任意波形周期脉冲磁场可通过时谐场叠加得到,各个时谐场的频率为基频的整数倍.三角脉冲电磁力方向呈现交替变化,并且其电磁压力绝对值大于电磁拉力.在脉冲磁场某时间段内，介质内部同时存在电