Hi All,
We are facing an odd fenomena in our kiln
There is a drop in the LSF of the kiln return dust , usually the LSF is exceeding 110 tbut currently LSF is 90 to 95
Any logic explanation behind this fenomena
gks
Low LSF in Kiln return dust due to following reason.
1.high reduced of Raw meal .
Check 45 micron residue KF , RAW Mill prod residue & return dust.
2. top cyclone dip tube worn out ( low collection efficiency of cyclone )
Regards
GKSharma
.
hendyalheety
what are the permissible limits for resdue 45 maicron
Michael Clark
Normally the dust return to the kiln is high LSF because the calcium carbonate is easier to grind than silica. So the finest particles in the kiln feed tend to be high LSF and these are the particles that are lost from the preheater as dust. In your case the finest particles must be low LSF. Maybe you have changed the clay comonent of the kiln feed?