Title:
METHOD FOR CHARGING RAW MATERIAL TO BELL-LESS BLAST FURNACE
Document Type and Number:
Japanese Patent JP3846451
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a raw material-charging method that inhibits the influx of coke and the deviation of an amount of a mixed layer formed of the coke and ore in a circumferential direction in a furnace, which occur when the ore is charged onto a coke terrace having deviated terrace lengths.
SOLUTION: When sequentially charging the coke and the ore so as to form layers, this charging method charges 20 mass% or more ore at a distribution chute tilting angle of θ+2 degrees or lower, when the minimum tilting angle of the distribution chute during charging the coke is θ; or alternatively, charges the ore at the distribution chute tilting angle of θ+6 degrees or higher, and if there is limitation in the quantity, charges the remaining ore at the tilting angle of θ+2 degrees or lower.
Inventors:
Sunahara fairness
Kaoru Nakano
Shusaku Komatsu
Jimbo high school student
Kaoru Nakano
Shusaku Komatsu
Jimbo high school student
Application Number:
JP2003131029A
Publication Date:
November 15, 2006
Filing Date:
May 09, 2003
Export Citation:
Assignee:
SUMITOMO METAL INDUSTRIES,LTD.
International Classes:
C21B5/00; (IPC1-7): C21B5/00
Attorney, Agent or Firm:
Michio Mori
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