Abstract:

The influence of moisture content in coal charge to the cold and hot strength and grain size is studied.This paper compares the difference of center temperature of coke cake from same dry coal but different coal cake height.The experiment result shows that as the moisture content reduces，the dry basis coke rate increases，but the shrinkage rate of coal cake decreases，the cold and hot strength of coke are improved，especially the coke strength after reaction is improved remarkably，the coke grain size decreases and uniformity of coke is getting better.Under the condition of same dry coal，temperature of coke cake at the center rises faster as the moisture content decreases.