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All Rights Reserved. Copyright © 2004, Yokogawa Electric Corporation
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TI 11M12A01-01E
4. Applications
b) Hot blast stove (blast furnace facility)
The hot blast stove is a facility used to heat the air used in a blast furnace to provide the high-
temperature hot air blast.
The air is heated by combustion of the gas generated from the coke ovens. The O
2
analyzer is
used to control or monitor this combustion.
Sample point
System type
T0404.EPS
Objective
Detector
Duct
D1
L2, L3
(If pressure is high,
a pressure compensated
detector is selected.)
Combustion monitoring
O
2
control
F0404.EPS
Purified G
as Bleeder T
ube
Furnace Top Pressure
Recovery Unit
Hot Blast Stove Waste
Heat Recovery
C-gas
Com
bustion Blo
we
rs
Blast
Furnace
Hot blast stove
Temperature: 20 to 350
°
C
Pressure: 3.5 to 10 kPa
Dust: 50 mg/Nm
3
Fuel: Gas
Dust
Precipitator
May 31,2004-00
