What is the formulae used for Liquid calculation at 1450 deg C? is it
1.13 C3A+1.35C4AF+MgO+ Na2O +K2O
or
1.13 C3A+1.35C4AF+MgO+Na2O +K2O + SO3
Some places SO3 is shown while in some it is not. Which is the correct one?
Michael Clark
Both are only approximations and do not take into account factors such as solid solution. Whether it is correct to include SO3 or not depends on the alkali:sulphate ratio.
shiggavi
u can try this formula but it only theoritical.
3 X Al2O3 + 2.25 X Fe2O3 + MgO +K2O + Na2O + SO3
RAJIV MODGAL
Dear Mr clark, Sub:-High dust recirculation and high free lime We request your help in solving our above subjected problem. At sanghi cement we are having 9500Mt/Day kiln where axial air is being maintained11500 and radial zero(0). The dust recirculation is so high that burning zone temperature could not be assessed (it is showing in the range 900 to 1050 degree centigrade).We are using high VM Indonation coal, our raw mix is having 1.1 to 1.2% SO3 and nearly 2.3%MgO, maintaining residue on 212mic is nearly 3%. Our clinker analysis is as under:- Loi 0.28% SiO2 20.54% Al2O3 5.53% Fe2O3 4.14% CaO 63.79% MgO 3.82% SO3 1.08% Cl- 0.028% LSF 96.61 SM 2.13 AM 1.33 F.CaO 2.8% Liq. 29.93 Please inform, what possible stapes we could take in arresting above subjected problems. Warm Regards, Rajiv Modgal G.M(Q.C) Sanghi industries limitedMichael Clark:
Both are only approximations and do not take into account factors such as solid solution. Whether it is correct to include SO3 or not depends on the alkali:sulphate ratio.