Dear Ted krapkat Sir,
Good evening.
Can we add Pet Coke with raw mix for grinding?
Will it be helpful in reduction of specific heat of our kiln system?
Is it feasible or any adverse affect on process?
Please provide your expert opinion on the subject matter.
Thanks & Regards,
Raju Sharma
It will not help to reduce sp. heat consumption as petcoke has very less VM . For for combustion it is grind very fine which is not possible with raw meal
Dear Rajuram,
First of all, The grindability of petcoke and lime stone is not compatable to each other, so grinding these two together will not help. Secondly, Petcoke fed with raw meal may create certain problems by increasing the local temperature wherever it would burn in preheater.
In my view it may not be worthwhile at all to grind these two together.
Hello Rajuram,
Firstly, sorry for not responding to your question sooner but I have been out of the office on annual leave.
I agree with Subhash and Dhiman. There is not any advantage in adding petcoke to the raw meal. It will not improve the heat consumption. And as the others have noted, it is likely to have detrimental effects such as localised overheating and generation of CO in the preheater. It would be better to fire it with mixed with the coal, as long as it is ground fine enough.
Regards,
Ted.