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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 (1101, 45 Yongdusan-gil, Buk-gu,Pohang-si, Gyeongsangbuk-do, 37607, KR)
Application Number:
KR2017/015084
Publication Date:
June 28, 2018
Filing Date:
December 20, 2017
Export Citation:
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Assignee:
POSCO (6261, Donghaean-ro Nam-gu,Pohang-si, Gyeongsangbuk-do, 37859, KR)
RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY (67 Cheongam-ro, Nam-guPohang-si, Gyeongsangbuk-do, 37673, KR)
International Classes:
F27D19/00; F27D21/04
Foreign References:
JPH0579622A1993-03-30
KR20090068810A2009-06-29
KR20090069607A2009-07-01
KR20090067937A2009-06-25
JP2015113484A2015-06-22
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (7th Floor, Daelim Acrotel13, Eonju-ro 30-gil,Gangnam-gu, Seoul, 06292, KR)
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