What are the reasons for high coke pushing current?
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This post was last edited by Desert Poplar on 2010-11-4 22:11. What are the reasons for a high focusing current? Can a signal failure in the four major vehicle chains lead to high coke pushing current?
Generally, it seems to be related to the maturity of the coke as well as the caking property of the raw coal, right?
It is difficult to push out the coke because the shrinkage rate of the coal cake is insufficient, resulting in high expansion pressure……
The coal cake has insufficient shrinkage, and the expansion pressure is high… In such cases, it is difficult to push the coke out in most of the furnace chambers, and the current required for pushing the coke is high. What are the reasons for a higher pusher current in one or several furnace chambers?
It is also related to the coking time; either too long or too short times are not suitable for pushing
There are generally the following reasons for a high coke pushing current: 1. The coke is not fully matured, it is sticky, and thus difficult to push. 2. The flat coal smelting effect is poor, and the coke is uneven. 3. Graphite forms on the walls of the carburizing chamber. 4. Deformation of the coke pusher rod. Generally speaking, unlocking the four major vehicle chains does not cause difficulties in coke pushing; we often perform such unlocking here. :lol
The main reason is the changes in the volatility and shrinkage of the coal blend.
It is related to coal blending and coking time; of course, the bending of the coke pushing rod also makes it difficult to push the coke
1 has nothing to do with the matching; it refers to volatile matter. 2 is furnace deformation, especially the corner damage of the furnace door. 3 is a short coking time.
1. The coal has poor caking properties, making it difficult to form coke properly during the coking process. 2. The heating regime is inappropriate, or the coking time is too short. 3. The bricks forming the furnace walls or bottom become deformed, increasing frictional resistance. 4. Improper loading of coal into the carbonization chamber leads to coal blocking the loading ports. 5. Excessively high temperatures in the furnace roof area cause excessive graphite formation on the furnace walls. 6. Mechanical issues such as deformation of the coke pushing rods and the guide channels of the coke car make it difficult to push the coke out~~~
It could be due to nodules forming on the furnace wall or the graphite at the furnace mouth not having been removed properly.