Regarding the issue of coke oven suction adjustment

There are many books on this topic; it can’t be explained in just a few sentences. .

This is my personal experience: use the suction force on the rising side to check whether the pressure of the air cover, orifice plate, and main gas pipe is appropriate. Check whether the suction in the smoke branch duct and the flap of the exhaust tray are appropriate using the suction at the lower storage level. Use the suction force from air and gas to check whether the ratio of gas to air is appropriate.

Ultimately, the pressure at the monitoring hole is used to determine this value; in combination with the pressure at 5 points, the suction force in the standard regenerator is determined. For the same regenerator, the pressure on the air side should be 1–2 Pa lower than that on the gas side, with it being ideal if the two pressures are as close as possible to each other

1. The basis for determining the suction force at the roof is to ensure that, with the pressure at the monitoring hole maintained at 0–5 Pa, there is an adequate amount of air and gas, along with a reasonable air excess coefficient. 2. When heated with blast furnace gas, since the furnace wall cannot be absolutely airtight, the air regenerator and the gas regenerator may interconnect. To prevent explosion accidents, it is allowed for the gas in the gas regenerator to flow into the air regenerator, but it is not allowed for the air in the air regenerator to flow into the gas regenerator; therefore, the suction force in the air regenerator must be slightly greater than that in the gas regenerator. 3. This is because the amount of gas entering the gas regenerator is higher than the amount of air entering the air regenerator. To ensure that the gas is fully preheated during ascent, the suction in the gas regenerator on the descent side must be greater than that in the air regenerator, in order to increase the heat carried by the exhaust gases. This post was last edited by 26722672 on 2009-2-14 22:31]