Air inlet and flue suction
Thread Content
This post was last edited by wangshaobo on 2023-11-9 22:22. In a coke oven, the pressure at the viewing holes is high and the air excess coefficient is high; if the air dampers are reduced, this lowers both the amount of air and the pressure at the viewing holes. Is it still necessary to reduce the suction force in the smoke distribution ducts?
The combustion efficiency of the coke oven and the quality of the gas often depend on the air supply and flue gas emissions. A high air excess factor means that the amount of air used for combustion exceeds the theoretical requirement, which can lead to energy waste. Reducing the air damper, as you mentioned, can effectively lower the air supply volume as well as the pressure at the viewing ports. As for whether it is still necessary to reduce the suction in the smoke ducts, this depends on the actual combustion efficiency and the quality of the gas. If the combustion efficiency and gas quality have improved significantly after reducing the air damper, it may not be necessary to further reduce the suction in the smoke ducts. However, if the suction force of the gas has a significant impact on the entire combustion process, or if the combustion efficiency and the quality of the gas do not meet the expected levels after reducing the air damper, it is necessary to adjust the suction force in the smoke ducts. Overall, this is a process that requires adjustment based on specific circumstances and actual outcomes. .
What you say makes sense; it depends on the specific circumstances to decide whether to adjust the suction force. However, per the manager’s orders, as long as the air damper is reduced, the suction force in the flue must also be decreased.