Regarding the density of tamped coal
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Our factory is currently undergoing consolidation upgrades, and our management has asked us to determine the density of the coal pellets fed into the furnace. I have conducted several measurements, and the values obtained range from 1.03 to 1.05. I’m not sure if this is reasonable; I would appreciate everyone’s insights – please advise me, experts.
1.05 is acceptable; the height and width of the carbonization chamber also affect the coal cake. If the ratios are too large, it can lead to the cake collapsing easily
The density of the 4.3-meter rammed coal briquettes produced by our factory is 1.05.
1.0~1.1; it mainly depends on the quality or performance parameters of the rammer.
If you measure the dry density, then it is suitable for a 4.3-meter ramming coke oven; our factory keeps it within the range of 1.03–1.06, which significantly improves the quality of the coal cakes
Our factory uses two-stage crushing before and after coal processing, and the density is generally between 1.05 and 1.1, which is relatively high.
The bulk density of the coal briquettes, the level of compaction, as well as the moisture content before it is fed into the furnace have a direct impact; generally, the moisture content is around 12%, and the bulk density of the coal briquettes can reach its maximum value under these conditions
I just had it tested a couple of days ago; the density of the dry coal pile is 0.98 and 0.99
Maintain the proper fineness and moisture level of the coal; generally, the fineness should be between 88-90, while the moisture level should be between 10 and 12. In this case, there will be no issues with the bulk density. If these values are exceeded, not only will the bulk density decrease, but the coal is also prone to collapsing, leading to a reduction in coke production, higher temperatures in the furnace roof area, and increased viscosity and density of tar – among other problems
The moisture content of the blending coal is 9.5–10%, and its bulk density is 1.08–1.09%; it is used in 5.5-meter ramming coke ovens.