Formula for calculating coking rate
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The coke yield per ton of coal is the coking rate k, and its reciprocal is the coal consumption per ton of coke. So what are the formulas for calculating the coking rate k? Compared to the actual values, are the calculation results of each formula on the high side or the low side?
The formulas for calculating the focal length that I am aware of at present are all based on statistical experience; therefore, the calculated results will certainly not be accurate and can only be used as a reference! So much experience has been accumulated in the field of coking technology!
100 – Volatiles of coal fed into the furnace + Volatiles of coke. This is only for reference
Can I just use dry-base coke/dry-base coal?
K = 103.17 – 0.75×Vd – 0.0067×t, where t is the temperature at the center of the cake.
K = 98 – Vd×5/6, where: Vd = Vdaf × (1–Ad)
I think in this formula, using the combustible basis of coal is more accurate.
What is the theoretical basis for this formula? Is there a derivation process? For example, k = A_coal / A_coke is derived from the fact that the ash content in coke is equal to that in coal; thus, 100 × A_coal = k × A_coke. Therefore, k = A_coal / A_coke. What about k = 100 – V_coal + V_coke?
All the formulas are meaningless. The mathematical model needs to be developed based on one’s own factory’s processes and parameters; what works for others is still meant for others only, and it’s useless to try to apply it elsewhere.
Well said, I agree with your view! At present, most of the empirical formulas derive from the statistical formulas of the former Soviet Union, and the applicability of such models has significant drawbacks; they can only be used as a reference! !
I’ve also spent a long time trying it, but the results haven’t been very accurate. The main issue is inaccurate measurement of coal and coke