Iron And Steel Furnaces; A) Iron & Steel Heating Furnace - YOKOGAWA ZR22G Technical Information

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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.
Preheat zone, heating zone,
soaking zone
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Sample point
Iron & steel heating furnace
Temperature: 900 to 1400°C
Pressure: 0.03 to 0.05 kPa
Dust: Minute
Fuel: Gas
System type
H2, H3
4. Applications
Detector Objective
D5 Combustion monitoring
TI 11M12A01-01E
4-5
T0452.EPS
F0452.EPS
May 31,2004-00