In the blast furnace smelting process, blast furnace gas is the emission gas from top stack through dedusting, filtering and purging. As a byproduct material in the blast furnace process, blast furnace gas is flammable and explosive. Therefore, on line monitoring system is required in the production process to ensure the production safety.
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NO.
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Measurement point
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Temperature
|
Pressure
|
Measurement components
|
Detection purpose
|
Recommend products*
|
|
1
|
Bag dedusting down stream
|
200°C
|
0.2MPa
|
CO, Co2, O2,
CH41 ,h2
|
Safety monitoring combustion, control hydrogen analyzer
|
LGT-100
Hydrogen analyzer
|
|
2
|
Hot-air pipe line
|
200-400°C
|
/
|
O2
|
Monitoring O2 concentration of main pipe, adjust production devices, realize production optimization
|
LGT-100
|
|
3
|
Hot-air stove exhaust gas
|
200-400°C
|
Minute positive gas
|
co、02
|
Control combustion efficiency
|
LGT-100
|
|
4
|
Emission stack
|
/
|
/
|
NOX, SO2 etc.
|
Online monitoring concentration of exhaust gas
|
EM-5
|
