All Rights Reserved. Copyright © 2004, Yokogawa Electric Corporation
TI 11M12A01-01E
4-5
4. Applications
<Toc> <Ind>
4.2
Iron and Steel Furnaces
a) Iron & steel heating furnace
These furnaces are for the heating of steel slabs, and generally the measured gas is at a high
temperature of 1000
°
C or above. The oxygen concentration is controlled to a low level to prevent
oxidation of the slabs. These are also some cases in which there is some amount of CO in the
gas, and in which magnetic oxygen analyzers or infrared type CO analyzers are used.
Sample point
System type
T0452.EPS
Objective
Detector
Preheat zone, heating zone,
soaking zone
H2, H3
D5
Combustion monitoring
F0452.EPS
Iron & steel heating furnace
Temperature: 900 to 1400
°
C
Pressure: 0.03 to 0.05 kPa
Dust: Minute
Fuel: Gas
May 31,2004-00
