To improve the working rate of a solid-reduction furnace, relating to an apparatus and a method for processing the reduction of iron oxide containing zinc or zinc oxide or iron oxide.
This apparatus is the one, in which the iron oxide containing zinc or the zinc oxide or the iron oxide is heated to carry out the solid-reduction of the zinc and/or the iron oxide with the reduction furnace, and courses 2a, 2b toward conveying means 3, 4 for discharging material from the reduction furnace 1 are switched with a switching means 5. When the solid-reduction is carried out, the solid discharged material discharged from the reduction furnace is introduced into the dry-type conveying means 3 and conveyed under drying state without leaking out to be suitably usable as the raw material for iron-making process at latter part. Meanwhile, when the stuck material on the inner wall of the furnace 1 is removed, the solid-reduction operation is once stopped and the stuck material is fused by raising the reduction furnace 1 temperature so as to fuse the stuck material and introduce the fused material discharged from the reduction furnace 1 into the wet-type conveying means 4, and while preventing the re-sticking as the stuck material by introducing the fused discharged material into the dry-type conveying means 3, without carrying out the start-up of the furnace and one series of the removing operation and the start-up again as the usual, the stuck material is easily fused and removed from the reduction furnace 1.
COPYRIGHT: (C)2009,JPO&INPIT
Omiya Associate
Sato
Fumio Shimizu
Osaka Steel Co., Ltd.
| JP52133002A | ||||
| JP2001279312A |
Shiro Terasaki
Yoshiki Kuroki