摘要
经过电弧炉熔炼后的电熔镁坨含有大量的余热资源,文章通过采用铝硅合金相变储热材料对镁熔坨的余热进行回收,设计了一种高效的电熔镁余热回收工艺流程,以解决目前存在的镁坨余热资源浪费严重、空气作为余热回收载体时气体温度低、物料预热温度低等问题。本设计回收的余热可将物料预热至350℃,可达到熔炼每吨菱镁矿节约电量92.1 kW·h的效果,其中预热物料的可用能占镁坨全部余热的39.5%。本工艺优点在于不仅充分回收了镁坨中的余热资源,而且提高了用于预热物料的气体温度,进而提高了物料预热温度,减少了能源的消耗。
The fused magnesium lump after being smelted in an electric arc furnace contains abundant waste heat resources.In this paper,an efficient fused magnesium waste heat recovery process was designed by using the aluminum-silicon alloy phase change heat storage material to recover the waste heat of the magnesium lump.The recovered waste heat is used to preheat the magnesite up to 350°C,and thus increases the available energy of the waste heat of magnesium lumps.The process can reduce the energy consumption.
作者
孙添文
陈韧
罗志国
邹宗树
SUN Tian-wen;CHEN Ren;LUO Zhi-guo;ZOU Zong-shu(School of Metallurgy,Northeastern University,Shenyang Liaoning 110819,China;School of Metallurgy Engineering,Liaoning Institute of Science and Technology,Benxi Liaoning 117004,China)
出处
《辽宁科技学院学报》
2022年第4期1-4,共4页
Journal of Liaoning Institute of Science and Technology
基金
工业攻关及产业化“全密闭式自动电熔镁生产线高效节能环保关键技术研究”(2020JH2/10100019).
关键词
镁熔坨
余热回收
相变储热材料
预热物料
Fused magnesium lump
Waste heat recovery
Phase change heat storage materials
Magnesite preheating
