The problem of brick wear at the bottom of the carbonization chamber in rammed coke ovens and its solutions
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It has now been found that the bricks at the bottom of the carbonization chamber are worn. But I want to know the pattern of variation in this wear amount. I hope everyone will discuss it. Could the factories that have encountered this issue share their solutions here (regardless of the aspect)? This post was last edited by ryn on 2009-3-23 17:59
In fact, it is also greater than top-loading and faster than top-loading, mainly due to the coal support plate. At the same time, the poster is also requested to strengthen the inspection of the furnace walls, paying special attention to the first layer of bricks on both sides of the carbonization chamber to check for any obvious depressions in certain sections. It is inevitable that ramming coke ovens reduce the lifespan of coke ovens. The impact is not limited to the carbonization chamber; it also affects the furnace protection iron parts and the furnace roof area. At the same time, the coke pushing coefficient will also decrease. The workload for workers will also increase. This post was last edited by Yan Xiangsi on 2009-1-23 06:19.]
The wear of the first layer of bricks in the furnace walls on both sides of the carbonization chamber is mainly caused by the coal support bottom plates (the affected areas are primarily located at the machine side of the furnace head). This issue has also occurred in our case, and it can be addressed by using patching methods.
How is its wear level monitored, moderator?
Agree with the person above. Also, I wonder if there is the factor of coke pushers? For example, the pusher rod is not level, or the tracks of the coke pusher vehicle are not level. Check whether there is more wear on the focal side or on the mechanical side, and that will allow you to make a judgment.
We should ask those brothers who have spent more time producing compacted coke to share their experiences; they surely have a good understanding of this. Please ask the moderators to support this.
It is normal for rammed coke to have such problems; it is mainly caused by friction from the coal supporting plates. It is necessary to pay close attention to any changes by considering factors related to production and flame adjustment, and address any issues that arise. Replace the bricks and apply coatings as needed
This phenomenon mainly occurs on the machine side; in severe cases, it is said that there are leaks. Another reason is that in plants that use single-activity wall-mounted coal, this phenomenon may be more pronounced.
The coal-supporting bottom plate, slides, and the graphite on the furnace walls should be checked regularly and cleaned thoroughly. In one of our units, an excessive amount of graphite on the furnace walls caused a brick to be pushed away by the coal-supporting bottom plate, resulting in a leakage.
I don’t think graphite has a significant impact; the graphite in our plant has long been polished away, and the gaps between the bricks at the bottom of the furnace are clearly visible.
I think the coal-bearing floor shouldn’t be too wear-resistant; a lifespan of one to one and a half years should be sufficient. It is recommended that, in the design of rammed coke ovens, the bricks at the bottom of the carbonization chamber and the first layer of bricks in that chamber be made thicker.