Hot Blast Stove (Blast Furnace Facility) - YOKOGAWA EXAxt ZR22G Technical Information

(2) 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 zirconia oxygen
analyzer is used to control or monitor this combustion.
Sample point
Duct
Blast
Furnace
Hot blast stove
Gas temperature: 20 to 350°C
Gas pressure: 3.5 to 10 kPa
Dust: 50 mg/Nm
Fuel: Gas
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System type
L2, L3
(If pressure is high,
a pressure compensated
detector is selected.)
Dust
Precipitator
3
<4. Applications>
Detector
Combustion monitoring
D1
Furnace Top Pressure
Recovery Unit
TI 11M12A01-01E
4-6
Objective
O control
2
Waste Heat Recovery
from Hot Blast Stove
F0406.ai
Mar. 14, 2017-00