Coke oven flue draft
Thread Content
What is the relationship between the total flue draft of a coke oven and the draft of its individual flues? For example, if the suction force in the individual flue is 180 Pa, what should be the total suction force of the flues? The suction in the main flue and the branch flues is the lowest; what is the minimum value it must not fall below?
The total flue draft in a coke oven is usually greater than that of the individual flues, as the total flue has to overcome more resistance to convey gases to the chimney. If the suction in the individual flue ducts is 180 Pa, the total flue duct suction is usually set at a higher value; the specific figure depends on the particular process flow and the design of the coke oven. There is also no unified standard for the minimum suction pressure in main flues and branch flues; it needs to be determined based on various factors such as the flow rate of the smoke gas, the length of the flues, and their cross-sectional area, in order to ensure that the smoke gas can be discharged smoothly. Usually, a certain margin is considered in the design to prevent too low suction. .