The industry features of dual swirl pulverized coal burner
1. The coal consumption is decreased by 30%;
2. The consumption-efficiency >97%;
3. The slag contains<1%;
4. The burn-off rate>99%;
5. The ash emission<50mg/m³when adding a dust collector;
6. Coal flexibility, easy operation;
7. High temperature resistance and wear resistance.
The primary and secondary air velocity for coal furnace
Coal type | Hard Coal | Lean Coal | Soft coal | Brown Coal | ||
Burner
Type | Direct wind | Primary air | 20-25 | 20-26 | 25-35 | 18-30 |
Secondary air | 45-55 | 45-55 | 40-55 | 40-60 | ||
Whirl wind | Primary air | 12-16 | 16-20 | 20-26 | 20-24 | |
Secondary air | 15-22 | 20-25 | 30-40 | 25-35 |
We have two principles. First, there is enough distance among the burners. and
1. Quadrangular layout.
2 Relative collision layout front wall against back wall.
3.Front wall layout.
4.Layout at the top of the boiler.
Model Selection
No. | Model | Minimum amount of pulverized coal injection (Kg/H) | Overall size (Lxnozzle diameter) | Weight (Kg) | regulation |
1 | LZ-200 | 100 | 307×1021 | 56 | 2.5 |
2 | LZ-300 | 200 | 350×1196 | 85 | 3 |
3 | LZ-400 | 400 | 400×1316 | 145 | 3 |
4 | LZ-600 | 600 | 460×1532 | 245 | 1:4 |
5 | LZ-800 | 1000 | 545×1625 | 420 | 1:4.5 |




