subhash

re How to grind pet coke in vertical roller mill designed for normal coal

How much Mill output you have achived  in petcoke compare to caol grinding

re KILN OUTLET HOOD VELOCITY CALCULATION

calculate hood area.  By cooler air balance ( Vent air- cooling air) = combustion air*0.6 = SA SA/ hood area/36...

re High Exit vent temp at cement mill outlet

Heat is generated during grinding due to  ball impact. also feed material  having temp.

re Lime stone VRM output

can you send process parameters before and after then i can answer your question

re Regarding Pet Coke grinding with raw mix in raw mill

It will not help to reduce sp. heat consumption  as  petcoke has very less VM . For for combustion it is grind ver...

re Louvre ring in VRM

Calculate louver ring area .  Measure mill inlet air flow if possible  othewise measure at Mill fan inlet , and  c...

re The cement fineness!!

check classifier seal gap ( maintain around 12 mm) . Reduce mill air flow

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