DEAR EXPERTS
I WANT TO REDUCE THE RETENTION ON 212 MICRON OF RAW MEAL FROM 3% TO LESS THAN 1% KEEPING THE 90 MICRON SAME.
AT PRESENT I AM GETTING 14% ON 90 MICRON WITH 3.5% ON 212 MICRON.
I AM HAVING POLYSIUS ROLLER PRESS CKT FOR RAW MEAL GRINDING. WHAT CHANGES ARE REQUIRED IN PROCESS PARAMETERS LIKE SEPARATOR,SEPARATOR AIR,OUTPUT ETC.
PLEASE SUGGEST
SIDHANT
Please check the PSD of your current raw mix.If it has wider PSD than you may reduce +212 micoron residue while maintianing +90 micron residue coarser from the current level by changing wider PSD to steeper PSD .It can be done by replacing first generation dynamic air separator by latest generation high efficiency separator.
Hi,
Usually the 90 micron residue is controlled with the grinding equipment and your 212 micron residue is governed by you separator setting.
Regards;
FJalali
Dear,
Pl clear how lower grinding pressure give narrow psd and high grinding pressure wider psd in case of
VRM- coal mil, raw mill and cement mill
Roll press- raw mill and cement mill .
GKS