Environment - De-dusting system
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| Dust cut-size | Efficiency (%) | |
| Middle efficiency cyclone | High efficiency cyclone | |
| ≤ 5 μm | ≤ 50 | 50 ~ 60 |
| 5~20 μm | 50 ~ 80 | 80 ~ 90 |
| 15~40 μm | 80 ~ 95 | 95 ~ 99 |
| 40 μm | 95 ~ 99 | 95 ~ 99 |
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| Equipment name | specification |
| Rapping Device | For remove the dust in Collecting electrodes, discharge electrodes and rectifying device in EP inlet duct, rap on electrodes |
| Collection Electrode | Collect the charged particle |
| Discharge Electrode | Form the corona electric-discharge and charge particle |
| Gas Distribution Device | Uniformly distribute the gas velocity |
| High Voltage Rectifier Transformer | |
| Insulator & Hopper | Insulated and protected discharge electrode |
| Dust discharge system | Conveyor, rotary valve etc. |
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| Contents | DRY E.P | WET E.P |
| Type |
This type is best suited for a larger capacity and a longer electrodes, it is adopted where the discharge electrodes are up to about 15 meters long. Further, life of the discharge electrodes is long and provability of wire breaking is very small. |
There are two types of wet-type electrostatic precipitators the
cylindrical type with a round casing and the plate type with a
rectangular-shaped casing. These wet-type electrostatic precipitators are generally used for special applications where dry-type electrostatic precipitators would not be suitable due to the pressure of dusty gases containing mists, the need for purification to reduce dust concentration or refining process required for fuel gas production. |
| Max.Inlet dust (g/㎥) | 60 | 3 |
| Max.Outlet dust (g/㎥) | 0.02 | ~0.01 |
| Inlet Temperature ℃ | 400 | <100 |
| Pressure Drop(mmH2O) | 15~30 | 20~30 |
| Merit | Easy maintenance Small power consumption |
Cheap maintenance costs Small power consumption |
| Demerit | Expensive initial cost Electrical characteristic influence |
Water treatment |
