公开(公告)号：US09598748B2

公开(公告)日：2017-03-21

申请号：US14136038

申请日：2013-12-20

申请人： OUTOKUMPU OYJ ,  OUTOTEC OYJ

发明人： Tuomo Mäkelä ,  Pekka Niemelä ,  Helge Krogerus

IPC分类号： C22B1/11 ,  C22B1/20 ,  C22B1/243 ,  C22B23/02 ,  C22C1/02 ,  C22C30/00 ,  C22C19/05 ,  C22C27/06 ,  C22C35/00

CPC分类号： C22C1/02 ,  C22B1/11 ,  C22B1/20 ,  C22B1/243 ,  C22B23/023 ,  C22C19/052 ,  C22C27/06 ,  C22C30/00 ,  C22C35/005

摘要： The invention relates to a method for producing a ferroalloy containing nickel. From a fine-grained raw material containing iron and chromium and a fine-grained raw material containing nickel, a mixture is formed with binding agent, the mixture is agglomerated so that first formed objects of desired size are obtained. The objects formed are heat treated in order to strengthen the objects so that the heat treated objects withstand conveyance and loading into a smelter furnace. Further, the objects are smelted under reducing circumstances in order to achieve ferrochromenickel, a ferroalloy of a desired composition containing at least iron, chromium and nickel.

公开(公告)号：US09884285B2

公开(公告)日：2018-02-06

申请号：US14912697

申请日：2014-08-19

申请人： OUTOKUMPU OYJ

发明人： Jari Kupari ,  Pekka Niemelä ,  Eero Väänänen

IPC分类号： B01D47/00 ,  B01D53/50 ,  B01D53/78 ,  B01D47/06 ,  B01D47/02

CPC分类号： B01D53/507 ,  B01D47/022 ,  B01D47/06 ,  B01D53/502 ,  B01D53/504 ,  B01D2251/304 ,  B01D2251/306 ,  B01D2251/404 ,  B01D2251/60 ,  B01D2251/604 ,  B01D2252/103 ,  B01D2257/302 ,  B01D2258/025

摘要： The invention relates to a method for removing solids in dust and sulphur oxides from process gases generated in a metallurgical process by a wet process. At least part of basic liquid is fed into the gas flow containing solids in at least one cascade scrubber in order to mix basic liquid with the gases and solids to be cleaned at the latest during the wetting of the gases and solids in the water space of the cascade scrubber, and the mixture containing basic liquid, wetted gases and solids are directed to have a cascade shower in each cascade scrubber in order to remove sulphur and solids from the gases.

公开(公告)号：US20160193565A1

公开(公告)日：2016-07-07

申请号：US14912697

申请日：2014-08-19

申请人： OUTOKUMPU OYJ

发明人： Jari Kupari ,  Pekka Niemelä ,  Eero Väänänen

IPC分类号： B01D53/50 ,  B01D47/02

CPC分类号： B01D53/507 ,  B01D47/022 ,  B01D47/06 ,  B01D53/502 ,  B01D53/504 ,  B01D2251/304 ,  B01D2251/306 ,  B01D2251/404 ,  B01D2251/60 ,  B01D2251/604 ,  B01D2252/103 ,  B01D2257/302 ,  B01D2258/025

摘要： The invention relates to a method for removing solids in dust and sulphur oxides from process gases generated in a metallurgical process by a wet process. At least part of basic liquid is fed into the gas flow containing solids in at least one cascade scrubber in order to mix basic liquid with the gases and solids to be cleaned at the latest during the wetting of the gases and solids in the water space of the cascade scrubber, and the mixture containing basic liquid, wetted gases and solids are directed to have a cascade shower in each cascade scrubber in order to remove sulphur and solids from the gases.

摘要翻译： 本发明涉及一种通过湿法在冶金工艺中产生的工艺气体中除去灰尘和硫氧化物中的固体的方法。 在至少一个级联洗涤器中将至少部分碱性液体进料到含有固体的气流中，以便最初将碱性液体与待清洁的气体和固体混合在一起，以在水中的气体和固体的润湿期间 级联洗涤器和含有碱性液体，润湿气体和固体的混合物被引导以在每个级联洗涤器中具有级联淋浴，以从气体中除去硫和固体。