What is the minimum suction force for a coke oven chimney?
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When a coking plant loses power, or when the coke ovens are shut down and left idle, what is the minimum suction level required in the side flues and main flue of the coke ovens to ensure their safe and normal operation? What is the minimum suction level that can be maintained in the chimney at this time? What will happen to the coke ovens in a coking plant if there is a sudden power outage, and what emergency measures should be taken?
Theoretically, as long as there is a density difference between the exhaust gas column inside the chimney and the outside air, a suction force will be generated; the temperature of the flue gas is generally not lower than 150℃
How was this 150 degrees determined?
The suction force of the chimney is determined by the pressure at other locations in the coke oven, such as the pressure at the observation holes; a short power outage has no effect on the chimney’s suction force. When the furnace is idling, the flue suction is also determined based on the pressure at the viewing port.
It is recommended that the original poster study the book *Coking Technology and Chemistry*. . . . .
At present, the suction force at our company’s chimney is -400 pascals
What is the suction force in the main flue during furnace idling?