The other way to purify and recycle coal gas is dry dedusting. Compared with wet dedusting, dry dedusting has higher purifying efficiency with no secondary pollution and sewage processing; higher coal gas calorific value and recycling dust can be used directly to save energy. Therefore, dry dedusting method has higher economic and environmental benefits.
| NO. | Measurement point | Temperature | Pressure | Measurement components | Detection purpose | Recommend products* |
| 1 |
ESP after the evaporative cooler |
Normal | Slightnegative pressure |
O2:0-5% C0:0-100%
|
Monitoring condition of fuel combustion | LGT-100 |
| 2 | Induced fan upstream | Normal | Slightnegative pressure |
O2:0-5% C0:0-100% |
Control Steelmaking, adjust production device, realize production optimization | LGT-100 |
| 3 | Induced fan down stream | Normal | Slightpositive pressure |
O2:0-5% C0:0-100% |
Recycle the coal gas when purified flue gas meets recycling condition | LGT-100 |
| 4 | Gas tank upstream | Normal | Slightpositive pressure |
O2:0-5% C0:0-100% |
Prevent coal gas tank from accident or explosion | LGT-100 |
| 5 | Gas tank downstram | Normal | Slightpositive pressure |
O2:0-5% C0:0-100% |
Prevent coal gas tank from accident or explosion | LGT-100 |
