Title:
MONITORING DEVICE, MONITORING METHOD AND MONITORING PROGRAM
Document Type and Number:
Japanese Patent JP2023039651
Kind Code:
A
Abstract:
To provide a monitoring device, a monitoring method and a monitoring program that can suppress an increase in the ratio of reducing materials.SOLUTION: A monitoring device 1 has: a stave temperature acquisition unit 21 that acquires a plurality of stave temperatures for a plurality of stave coolers arranged on a furnace wall of a blast furnace at regular time intervals including the period of suspension of the blast furnace; a temperature variation calculation unit 22 that calculates a plurality of temperature variations, which are the variations of temperatures at predetermined positions on the furnace wall of the blast furnace, at the predetermined time intervals, from the plurality of stave temperatures; a stave temperature variation index calculation unit 23 that calculates the stave temperature variation index, which is the standard deviation of the plurality of temperature variations; and an operation abnormality determination unit 24 that determines whether the stave temperature variation index is below a predetermined lower threshold. An initial value of the lower threshold is extracted from the stave temperature variation index during a wind resting period.SELECTED DRAWING: Figure 4
Inventors:
MATSUZAKI SHINROKU
NATSUI TAKUYA
MIYAOKA SHINJI
NATSUI TAKUYA
MIYAOKA SHINJI
Application Number:
JP2021146882A
Publication Date:
March 22, 2023
Filing Date:
September 09, 2021
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
C21B7/24; C21B7/10; F27D1/00; F27D21/00
Attorney, Agent or Firm:
Aoki Atsushi
Shinji Mihashi
Ritsuo Fukuchi
Saito Manabu
Kenji Kimura
Power Endo
Shinji Mihashi
Ritsuo Fukuchi
Saito Manabu
Kenji Kimura
Power Endo
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