Ceiling suction and small flue suction
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This post was last edited by wangshaobo on 2023-11-6 at 20:04. For coke ovens, the suction force at the oven top should be no less than 30 Pa for ovens with a height of 4.3 meters; the deviation in the upward airflow should not exceed ±2 Pa, while the deviation in the downward airflow should not exceed ±3 Pa. As the furnace size increases and the carbonization chamber gets taller, is a pressure of 30 Pa still required for the roof retention? Moreover, large coke ovens no longer require measurements of the roof suction and temperature; the roof suction can be indirectly determined by measuring the suction in the small flue. Taking a 6.25-meter coke oven as an example, what are the typical control values for the suction and deviation in the small flue?
Regarding the suction force at the roof, indeed, as the furnace size increases and the height of the carbonization chamber rises, the requirements may change. The specific value may need to be determined based on the actual furnace type and operating conditions; it is not necessarily 30 Pa. As for large coke ovens, it is true that the measurement of roof suction and temperature has been discontinued in some cases, with the suction in the small flue being measured instead to indirectly reflect the roof suction. The control of the suction and deviation in the small flue of a 6.25-meter coke oven is usually around 40–50 Pa, but the exact value depends on the actual operating conditions of the coke oven as well as the requirements regarding the quality of the coke produced. If more accurate values are required, it is recommended to consult a professional coke oven operation team or the manufacturer. .