I was just wondering how important it is to a Cement machinery supplier that the Mass Balance is ?? Based on which they give Performance Guarantee. Being a Auditor Myself i came across a plant where they don't have a drop test facility for Mass Balance (Lime consumption factor) so with no other option we have to apt for the equation given by peray in Cement Manufacturer's Handbook Page 100 (Metric system) Here is that excerpt of that equation (Peray doesn't gives the derivation of the equation as usual, All we have is the black box, So believe it to use it or crack the nut)
a = 0.01784 Cca
b = 0.0209 Cmg
c = 0.01 CAl
d = 0.01 CSi
e = 0.01 CFe
f = 0.00075 Csi + 0.0035 CAl
subtotat = a + b+c+d+e+f
g = subtotal * ((100-Hig)/100)
Where C = Composition in % on loss free basis
Ca = CaO , Si = SiO2 , Mg = Mgo , Al = Al2O3 and Fe = Fe2O3
subtracting Ash in clinker form g we get Amount of feed required to produce on kilogram of clinker
Trust Me having done Many, literally Many Audits of cement plants i have found that peray equation (the one above) rarely gives empirical figures
So I was just again wondering if somebody can crack the nut?rather than giving some wild guess !! or just Blindly follow as being done from many years?
I'll be waiting......
Er.Raza Hussaini
Asst.Manager
B.tech., (Chemical Engg)
