Why is the base of the coke oven rising pipe red-hot?
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The base of the coke oven rising pipe and the flange at the interface with the bridge pipe have turned red – what could be the reason? Waiting for an answer online.
There’s a problem with the ammonia spray, or the gas pipeline is partially blocked
The refractory material is falling off. What type of furnace is it?
Ammonia is sprayed to cool the bridge tube, but cooling does not reach the base of the rising tube; therefore, it cannot be a problem caused by the ammonia spraying. The reason for the redness at the root is most likely the detachment of the refractory material. If the flange at the bridge pipe connection is red, it may be due to poor spraying or blockage at that location
This post was last edited by dmz329227 on 2019-4-16 09:31: 1. Detachment of refractory materials (most likely)； 2. The furnace door near the rising pipe (especially the upper part) has severe air leakage, allowing air to mix with raw gas during combustion ； 3. Air leakage at the root of the rising pipe (at the flange or base and the interface with the refractory material) ； 4. The furnace temperature is too high for several batch numbers in the side hole ； 5. The flip plate was not activated at the end of coking, resulting in backflow of raw gas (which mixes with air leaking in from the base; this is less likely) ；
What was said upstairs is correct; it’s probably these issues. :)
Spray is blocked; check the spray system, use high-pressure ammonia water