Impact of weakly caking coal on coke production? ? ?
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Gentlemen, what impact does using too much low-cohesion coal have on coking? ? ? What impact does it have on coke quality? ? ? Which brother will reply to me? ? ?
Reduce the cold and hot strength of coke.
Provided that the bonding property of the blended coal is good, adding an appropriate amount of weakly bonding coal has little impact on coke strength, and it helps to reduce the ash and sulfur content in the coke as well as the cost of coal blending. However, if too much of such coal is added, it will lead to a decline in the bonding and coking properties of the blended coal, resulting in a significant deterioration in coke strength.
We have previously used a small amount of weak-cohesion coal to replace 1/3 of the coking coal; adding such a small amount has little impact on the quality of the coke, while helping to reduce ash and sulfur content as well as costs
This mainly depends on the coal blending structure used; weakly caking coals inherently have poor coking properties, either due to a high content of inert components or poor thermal stability. If the coal blending composition contains sufficient amounts of active components and colloids, a small amount can be added, with 5% being the upper limit ； If the coal blending structure is already relatively reasonable, then adding weak-cohesion coal has a significant impact on the quality of coke.
Adding a small amount can reduce costs and lower ash and sulfur content, but excessive amounts can affect the quality of coke