High temperature of the gas collection pipe
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We have six-meter coke ovens that use a 5-2 sequence for coke extraction. After each extraction of coke from furnace number 5, the temperature of the gas collection pipe associated with that furnace rises to around 100 degrees Celsius; while after extracting coke from the other furnaces, the temperature reaches around 90 degrees Celsius at most. Both the oven temperature and the results of ammonia spray tests are within normal ranges. I’m not sure what could be the cause, so I’m seeking advice. Thank you.
Is the location of the gas collector temperature thermocouple at port 5? That’s the case with us: as soon as it’s connected to furnace No. 22, the temperature of the gas collection pipe rises, but it returns to normal after ten or twenty minutes.
The thermocouple for measuring the temperature of the gas collection pipe should be placed near tag number 5; try installing temperature measurement points in other locations to compare.
The location of the thermocouple for measuring the temperature of the gas collection pipe should be near tag number 5
Is the location where the thermocouple is installed, or tag number 5, at the gate-shaped tube, where the gas flows quickly?
Check the secondary spraying near the gas collection pipe of No. 5; it seems that the secondary spraying is not working properly.