Title:
BLAST FURNACE TUYERE CONDITION OBSERVATION METHOD AND BLAST FURNACE TUYERE CONDITION OBSERVATION DEVICE
Document Type and Number:
Japanese Patent JP2016060931
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To accurately observe a condition near a blast furnace tuyere independently from fluctuation in a blast furnace tuyere image due to fire.SOLUTION: The present invention is a method for observing a condition in a blast furnace tuyere by utilizing a thermal radiation intensity image taken by an imaging apparatus arranged on the blast furnace tuyere, comprising: a step of identifying an ellipse shape matching with an outline shape by applying ellipse shapes to an outline shape of a tuyere from each of thermal radiation intensity images; a step of carrying out geometric transformation to each of thermal radiation intensity images to generate a normalized image and carrying out polar conversion to the normalized image with ellipse parameters of the identified ellipse shape so that each of outline shapes to be a normalized circle having a determined center position and a determined radius; a step of generating a binarized image by binarizing the normalized image after polar conversion generated; and a step of generating light part distribution information showing distribution in the radial direction of a normalized circle of light parts present in the generated binarized image by utilizing the binarized image generated.SELECTED DRAWING: Figure 5
Inventors:
KONNO YUSUKE
SUGIURA MASAHITO
MURAMATSU MASAOMI
DOEN HIROYUKI
UETAKI HARUO
SUGIURA MASAHITO
MURAMATSU MASAOMI
DOEN HIROYUKI
UETAKI HARUO
Application Number:
JP2014188545A
Publication Date:
April 25, 2016
Filing Date:
September 17, 2014
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP
International Classes:
C21B7/24; F27D21/02; G01J5/00; G01J5/48
Domestic Patent References:
| JP2013185234A | 2013-09-19 | |||
| JP2013185234A | 2013-09-19 | |||
| JPS5959813A | 1984-04-05 | |||
| JPH05256705A | 1993-10-05 | |||
| JP2003194529A | 2003-07-09 | |||
| JPS5959813A | 1984-04-05 | |||
| JPH05256705A | 1993-10-05 | |||
| JP2003194529A | 2003-07-09 |
Attorney, Agent or Firm:
Miaki Kametani
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto