Central burners for shaft furnaces are developed for straight-line and counterflow furnaces to roast different materials. Central burner is fixed into the furnace roof arch.
| Parameters | Norm |
|---|---|
| Nominal thermal capacity, Gcal/h | 2,4 |
| Nominal gas consumption, Nm3/h | 300 |
| Torch gas pressure, kgf/sm2 | < 2,8 |
| Gas temperature, oC | from -20 to 30 |
| Compressed air torch pressure, kgf/sm2 | до 4,0 |
| Nominal air burning consumption, m3/h | 3000 |
| Excess air ratio | from 1,1 to 1,5 |
| Air burning temperature, oC | from -20 to 30 |
| TDR | 5 |
| Torch length, m | 14,5 |
| Torch weight, kg | 1700 |
Other burners, produced by NTPF Etalon Co., Ltd.