Smoke coming from the furnace door
Thread Content
The coke ovens in my workshop have been emitting heavy smoke from their doors lately; this problem occurs with both the doors that have been cleaned and new doors. There are no issues with the rising pipes, bridge pipes, or collection pipes, and the high-pressure ammonia solution is functioning normally. I just can’t figure out what’s causing the smoke. Please help me out.
Check the gap between the edge of the furnace door and the furnace door frame; it must be 0.05 mm
How is the fan’s suction? Check for tar deposition in the gas collection pipes and negative pressure pipelines. If smoke can escape, it indicates poor exhaust.
Check for tar deposition in the gas collection pipes and negative pressure pipelines. If smoke can escape, it indicates poor exhaust.
Since the system operates under negative pressure, if black smoke appears, it indicates that the system has become under positive pressure； At this point, it is necessary to check whether the back route is unobstructed, whether there are significant changes in load, whether there is incomplete combustion resulting in black smoke, and whether the balance of the operation has been disrupted,.....
Check the pressure in the gas collection pipe, paying special attention to the pressures at five different points – especially the pressure at the bottom of the carbonization chamber. It’s likely that, due to the change in season, it is necessary to adjust the control pressure for the gas collection pipe (in other words, the current pressure in the gas collection pipe is too high)
I thought it was a problem with the smoke from the burner; we can discuss ways to deal with that. In a situation like this, I still think it’s better to carefully check the negative pressure system, as suggested by the person upstairs