The leakage in coke ovens varies sometimes more and sometimes less
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Standard temperature 1270, 54 furnaces per day. Smokeless coal charging is achieved using high-pressure ammonia water. It is not at 150 Pa under high pressure; once activated, it reaches over 300 Pa. Leakages usually occur at the plug bricks and sight hole seat bricks, as well as at the water seal covers and dust removal holes. The situation is as follows: under the heating regime, there are no significant changes in the iron parts; sometimes there is a high level of leakage, and other times the amount of leakage is low. Coal quality? Temperature? Suction? I’m really confused.
This situation should be related to the heating regime. The graphite in the brick gaps burned away, causing leaks ； With graphite added, the leakage has significantly decreased.
What is the pressure of high-pressure ammonia water? It cannot be too high, as too high a pressure will cause leaks
May I ask: What should be the appropriate pressure for high-pressure ammonia water? Also, what is the relationship between the fire hole pressure and leakage? Thank you.
The pressure for high-pressure ammonia water needs to be determined gradually on one’s own, ensuring that all the dust generated during coal loading can be removed; the lowest possible pressure will suffice. The fire hole pressure has no relation to leakage. The leakage areas can be treated by grouting the vertical flue.