Title:
APPARATUS AND METHOD FOR CONTROLLING CONCENTRATION OF OXYGEN IN HEATING FURNACE
Document Type and Number:
WIPO Patent Application WO/2018/117625
Kind Code:
A1
Abstract:
An apparatus for controlling the concentration of oxygen in a heating furnace according to one embodiment of the present invention may comprise: a first oxygen concentration bias setting unit for receiving a set first oxygen concentration bias; a second oxygen concentration bias calculation unit for, when a measured value of carbon monoxide in exhaust gas is out of an allowable carbon monoxide range, calculating a second oxygen concentration bias by using the measured value of carbon monoxide and the concentration of oxygen measured in the exhaust gas; an oxygen concentration bias providing unit for providing an oxygen concentration bias by using the first oxygen concentration bias and the second oxygen concentration bias; and an oxygen concentration set value correction unit for correcting a set value of the concentration of oxygen by using the oxygen concentration bias.
Inventors:
KIM YOUNG-IL (KR)
Application Number:
PCT/KR2017/015084
Publication Date:
June 28, 2018
Filing Date:
December 20, 2017
Export Citation:
Assignee:
POSCO (KR)
RES INST IND SCIENCE & TECH (KR)
RES INST IND SCIENCE & TECH (KR)
International Classes:
F27D19/00; F27D21/04
Foreign References:
| JPH0579622A | 1993-03-30 | |||
| KR20090068810A | 2009-06-29 | |||
| KR20090069607A | 2009-07-01 | |||
| KR20090067937A | 2009-06-25 | |||
| JP2015113484A | 2015-06-22 |
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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