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公开(公告)号:US06330270B1
公开(公告)日:2001-12-11
申请号:US09646731
申请日:2000-09-19
申请人: Georg Brustad , Frode Haugen , Halvard Tveit , Aasgeir Valderhaug
发明人: Georg Brustad , Frode Haugen , Halvard Tveit , Aasgeir Valderhaug
IPC分类号: H05B7148
CPC分类号: G01G19/18
摘要: The present invention relates to a method for weighing an electrode submerged in the charge of an electric smelting furnace. The electrode is moved in vertical direction at least once, whereafter the electrode is lifted and the weight of the electrode is registered shortly after the electrode has been lifted.
摘要翻译: 本发明涉及一种浸在电熔炼炉中的电极的称重方法。 电极在垂直方向上移动至少一次,之后电极被抬起,并且电极的重量在电极被提升之后不久就被记录下来。
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公开(公告)号:US06696035B2
公开(公告)日:2004-02-24
申请号:US09898869
申请日:2001-07-03
申请人: Magne Dastol , Halvard Tveit , Eldar Dingsoyr , Per Ronning , Svein Harsaker
发明人: Magne Dastol , Halvard Tveit , Eldar Dingsoyr , Per Ronning , Svein Harsaker
IPC分类号: C01B3312
CPC分类号: B82Y30/00 , C01B33/025 , C01B33/181 , C01P2004/62 , C01P2004/64 , C01P2006/10 , C01P2006/11 , C01P2006/12 , C01P2006/60 , C01P2006/80 , C01P2006/82
摘要: The present invention relates to a method for producing microsilica having a reflectivity between 65 and 90% in a smelting furnace for production of ferrosilicon or silicon by using a charge comprising an SiO2 source and a solid carbonaceous reduction agent, where microsilica is recovered from the off-gases from the smelting furnace, wherein the solid reduction agent supplied to the furnace contains an amount of volatile matters of less than 1.25 kg per kg produced microsilica and that the temperature in the gas atmosphere in the furnace above the charge is kept above 500° C.
摘要翻译: 本发明涉及通过使用包含SiO 2源和固体碳质还原剂的电荷,在用于生产硅铁或硅的冶炼炉中具有65-90%反射率的微硅粉的制备方法,其中从脱落 - 来自熔炼炉的气体,其中供给炉子的固体还原剂含有少于1.25kg / kg生产的微硅粉的挥发性物质的量,并且在电荷以上的炉子中的气体气氛中的温度保持在500℃以上 C。
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