Problems with heating 5.5-meter ramming coke ovens
Thread Content
The current temperature is 340, and it has remained at this level for a month. The pressure measured at the flame hole is negative each time – is this normal? The 75/75 three-zone ratio for suction is 88/61; the pressure at the viewing ports, as measured recently, ranges from -8 to -10. Doesn’t it mean that operation should become normal at around 300 degrees?
Adjust the suction force of the smoke ducts by 5–10 Pascals at a time to avoid temperature fluctuations.
It is normal for large coke ovens to switch to positive pressure later than smaller ones; there’s no need to worry or take any insulation measures, as they will switch to positive pressure in a few days
The temperature at the lower part is a bit low; check the sealing condition there. Ensuring proper sealing at the lower part and raising its temperature can reduce suction and increase the pressure at the viewing port
The control parameters for the suction force in the side flue at the machine focus are quite critical! ! ! ! !