Title:
POWDER RATIO MEASUREMENT DEVICE, POWDER RATIO MEASUREMENT SYSTEM, AND BLAST FURNACE OPERATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/189262
Kind Code:
A1
Abstract:
This powder ratio measurement device is capable of highly accurate real-time measurement of the powder ratio of powder adhered to the surface of a lump of a substance. This device is for measuring the powder ratio of powder adhered to the surface of a lump of a substance, and comprises an illumination device for illuminating the lump of the substance, a spectroscopy device for separating the light reflected by the lump of the substance and measuring a reflectance spectrum, and a calculation device for extracting a feature value from the reflectance spectrum measured by the spectroscopy device and calculating the powder ratio from the extracted feature value.
Inventors:
YAMAHIRA NAOSHI (JP)
TSUBOI TOSHIKI (JP)
TSUBOI TOSHIKI (JP)
Application Number:
PCT/JP2019/013016
Publication Date:
October 03, 2019
Filing Date:
March 26, 2019
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
G01N21/27; C21B5/00; F27D21/00; G01N15/02
Foreign References:
| JP2016141828A | 2016-08-08 | |||
| JP2001091484A | 2001-04-06 | |||
| JP2015196888A | 2015-11-09 | |||
| JP2015124436A | 2015-07-06 | |||
| US4799799A | 1989-01-24 | |||
| JP2005134301A | 2005-05-26 | |||
| JP2000329683A | 2000-11-30 | |||
| JP2015124436A | 2015-07-06 |
Other References:
See also references of EP 3757543A4
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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