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Title:
METHOD FOR RECYCLING ELECTRIC FURNACE DUST
Document Type and Number:
Japanese Patent JP2010235962
Kind Code:
A
Abstract:

To provide a method for recycling electric furnace dust, in which the electric furnace dust is recycled into the electric furnace by handling the electric furnace dust with a lifting-magnet crane while maximizing a recycling ratio of a the electric furnace dust into the electric furnace.

In the method for recycling the electric furnace dust, the dust generated in the electric furnace (the electric furnace dust) and granular irons (the granular iron recovered from the slag) wherein the steel-making slag is crushed and sorted by a magnetic force to recover, are mixed and thereafter, charged into the electric furnace. The ratio of the granular iron recovered from the slag, is set to be 5-50 mass% based on the total content of the electric furnace dust and the granular iron recovered from the slag. As the result of mixing the granular iron recovered from the slag, even in the case of maximizing the recycling ratio of the electric furnace dust, the dust can be handled with the lifting magnetic crane.

COPYRIGHT: (C)2011,JPO&INPIT


Inventors:
HAYASHI HIROAKI
HIRAMA TSUNEO
SUZUKI MASANOBU
Application Number:
JP2009081693A
Publication Date:
October 21, 2010
Filing Date:
March 30, 2009
Export Citation:
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Assignee:
NIPPON STEEL CORP
International Classes:
C21C5/52; C22B7/02; C22B19/30
Domestic Patent References:
JP2000212630A2000-08-02
JPS56139631A1981-10-31
JP2008019510A2008-01-31
JPH10158718A1998-06-16
JPH10195514A1998-07-28
JPH09310112A1997-12-02
JPH06256814A1994-09-13
JPH06281363A1994-10-07
Attorney, Agent or Firm:
Shunta Naito
Hisataka Tanaka