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Patent Searching and Data


Title:
OPERATION OF ARC FURNACE EQUIPMENT, AND ARC FURNACE
Document Type and Number:
Japanese Patent JPH10237529
Kind Code:
A
Abstract:

To realize the high efficiency in energy, to reduce the melting time, and to reduce the electric power unit requirement by contributing the sensible heat of an exhaust gas and the secondary combustion heat generated in burning CO gas to preheat the scrap in an extremely effective manner in an operating method of an arc furnace equipment to preheat the main raw material by introducing the hot exhaust gas to be generated from the arc furnace during the melting and refining operation into other arc furnace in which the main raw material is charged in the arc furnace equipment provided with a plurality of furnace bodies.

The CO gas to be generated in an arc furnace is discharged while the outside air is prevented from being mixed by closing a slag hole 10 in the arc furnace during the melting and refining operation. In other arc furnaces, the CO gas is introduced into the furnace without any combustion tower 7, and a gas containing oxygen is fed from a tuyere 14 provided on a furnace body side wall to perform the secondary combustion, and the main raw material is preheated by the sensible heat and the combustion heat of CO gas.


Inventors:
SUZUKI TAKESHI
KIRIHARA OSAMU
NAKATO SAN
TANMACHI KENICHI
Application Number:
JP1997000035419
Publication Date:
September 08, 1998
Filing Date:
February 20, 1997
Export Citation:
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Assignee:
KAWASAKI STEEL CO
International Classes:
C21C5/52; (IPC1-7): C21C5/52
Attorney, Agent or Firm:
Akihide Sugimura (3 others)