Title:
METHOD AND SYSTEM FOR PREHEATING AND MELTING IRON SCRAP
Document Type and Number:
Japanese Patent JP2000310492
Kind Code:
A
Abstract:
To reduce physical unit of refractory, frequency of repair and operational trouble by decreasing the ventilation resistance at the bottom part of a shaft furnace thereby decreasing the push-out resistance of scrap.
The preheating/melting system for iron scrap comprises a melting furnace employing an energy source of electricity or fossil fuel, and a shaft furnace having a pusher on the bottom and preheating scrap by introducing exhaust gas from the melting furnace. Productivity is enhanced by providing the shaft furnace 3 with one or more clamp unit 5 and one or more finger unit 6 thereby ensuring stabilized preheating/melting work of scrap.
Inventors:
IDEMOTO YOJI
NAGAHAMA HIROSHI
OGAWA YUJI
YAMASHITA KOSUKE
NAGAHAMA HIROSHI
OGAWA YUJI
YAMASHITA KOSUKE
Application Number:
JP11911199A
Publication Date:
November 07, 2000
Filing Date:
April 27, 1999
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
C21C5/28; F27B3/18; F27D13/00; (IPC1-7): F27D13/00; C21C5/28; F27B3/18
Attorney, Agent or Firm:
Tomoyuki Yathata (1 outside)
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