Average straight-line temperature
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4.3-meter ramming coke oven: higher temperature on the machine side and lower temperature on the coke side; air inlet valve on the machine side is set at 19 cm, with a suction force of 205； The air intake door on the Anxious side is 21 cm wide, with a suction force of 210. I don’t know how to adjust it; please advise a expert.
The temperature on the furnace side is lower than that on the machine side – by how much exactly? If it’s not that low, then it’s fine. Because the door on the machine side of the ramming coke oven remains open for a longer time than that on the coke side, the temperature drops more on the machine side. Additionally, in order to prevent severe coke collapse, less coal is loaded on the coke side compared to the machine side, which reduces the amount of heat required as well.
First, check the temperature in the horizontal row to see whether it is high throughout the machine side or at the standard level. If it is at the standard level, the small nozzles can be changed; if it is high throughout, the air inlet on the machine side can be reduced in size to increase the suction force on the coke side. It is important to ensure that there is positive pressure at the viewing holes on the coke side – negative pressure should be avoided, especially during noon, when regular checks should be carried out
It is recommended to measure the horizontal rows first, focusing on those that are at a higher level on the machine side; this can be achieved by adjusting the orifice plates or using pressing wires
It is best not to adjust the suction power or the opening degree of the air inlet casually
Under normal circumstances, adjusting the size of the air inlet has a minor impact on the air flow rate, but changes in suction strength have a greater effect on it. If there is not a large temperature difference on the side of the coke in a full-furnace setup, it’s not a big problem. However, if the temperature difference is significant, the suction force on the coke side should be reduced as soon as possible. As for why this adjustment is necessary, it cannot be explained in just a few words; it relates to factors such as the airflow volume, thermal buoyancy, and the amount of heat carried away. The key is to make fine adjustments, make them frequently, and keep experimenting.