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Title:
METHOD AND FACILITY FOR CHARGING RAW MATERIAL FOR BLAST FURNACE
Document Type and Number:
Japanese Patent JP2012167294
Kind Code:
A
Abstract:

To provide a method for charging a raw material for blast furnace, which can charge a raw material for blast furnace at an uniformed distribution into a bell-less blast furnace having a plurality of furnace top bunkers, and to provide a facility for charging a raw material for blast furnace.

In the facility for charging a raw material for blast furnace, the raw material for blast furnace is conveyed to a furnace top of the bell-less blast furnace 1 by a furnace top conveyor 3 and fed into the furnace top bunkers 21-23 from a furnace top hopper 4; the fed raw material for blast furnace is discharged into a receiver 10 from raw material discharging valves 91-93; and the discharged raw material for blast furnace is charged inside the furnace top of the bell-less blast furnace from a rotating chute 11. The facility for charging a raw material for blast furnace includes: a calculation device 14 for calculating a weight of the raw material for blast furnace inside the bunker by correcting bunker weight measurement values measured by load cells 121-123 with a preset correction coefficient; and a control device 15 for controlling the raw material discharging valves to be opened or closed based on the calculation result outputted by the calculation device 14.


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Inventors:
HOSOMI KAZUO
Application Number:
JP2011026476A
Publication Date:
September 06, 2012
Filing Date:
February 09, 2011
Export Citation:
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Assignee:
JFE STEEL CORP
International Classes:
C21B5/00; C21B7/20
Domestic Patent References:
JP2002038208A2002-02-06
JPH0428806A1992-01-31
JP2002302707A2002-10-18
JPS62156527A1987-07-11
JPS62151722A1987-07-06
JP2002038208A2002-02-06
JPH0428806A1992-01-31
JP2002302707A2002-10-18
JPS62156527A1987-07-11
JPS62151722A1987-07-06
Foreign References:
US0009004A1852-06-08
US0009004A1852-06-08
Attorney, Agent or Firm:
Tetsuya Mori
Megumi Konishi
Hide Tanaka Tetsu
Ichi Hirose
Toru Miyasaka



 
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