Login| Sign Up| Help| Contact|

Patent Searching and Data


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 (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
Application Number:
JP2017/040569
Publication Date:
June 21, 2018
Filing Date:
November 10, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON STEEL & SUMITOMO METAL CORPORATION (6-1 Marunouchi 2-chome, Chiyoda-ku Tokyo, 71, 〒1008071, JP)
International Classes:
F27B3/08; C22B7/04; F27B3/18
Domestic Patent References:
WO2014003123A12014-01-03
Foreign References:
JP2002317918A2002-10-31
JPH102538A1998-01-06
JP2008075950A2008-04-03
JPS62153140A1987-07-08
JPS5855675A1983-04-02
JP2016244502A2016-12-16
JPS5233897A1977-03-15
JP2006528732A2006-12-21
JPS5522320B21980-06-16
Attorney, Agent or Firm:
TANAI Sumio et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
Download PDF:



 
Previous Patent: MOBILE DEVICE LOCATION SYSTEM

Next Patent: OPTICAL MODULE