Title:
ELECTRIC FURNACE
Document Type and Number:
WIPO Patent Application WO/2018/110171
Kind Code:
A1
Abstract:
This electric furnace has: a cylindrical furnace wall; a furnace lid which is provided at the upper end of the furnace wall; and a furnace bottom which is provided at the lower end of the furnace wall and which has a deep bottom section and a shallow bottom section that is a region at a height of 150-500 mm with respect to the deepest portion of the deep bottom section. The electric furnace is provided with a slag introduction port through which molten slag or a solidified slag lump can be introduced into the electric furnace directly from a slag transport container or via an inclined trough from a slag transport container. The slag introduction port has an overlapping portion with respect to the shallow bottom section in a plan view, and the area ratio of the shallow bottom section to the furnace bottom is 5-40% in a plan view.
Inventors:
HARADA TOSHIYA (JP)
Application Number:
PCT/JP2017/040569
Publication Date:
June 21, 2018
Filing Date:
November 10, 2017
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
F27B3/08; C22B7/04; F27B3/18
Domestic Patent References:
| WO2014003123A1 | 2014-01-03 |
Foreign References:
| JP2002317918A | 2002-10-31 | |||
| JPH102538A | 1998-01-06 | |||
| JP2008075950A | 2008-04-03 | |||
| JPS62153140A | 1987-07-08 | |||
| JPS5855675A | 1983-04-02 | |||
| JP2016244502A | 2016-12-16 | |||
| JPS5233897A | 1977-03-15 | |||
| JP2006528732A | 2006-12-21 | |||
| JPS5522320B2 | 1980-06-16 |
Other References:
See also references of EP 3557171A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
Download PDF: