we have 3300tpd FLS plant, last year it was upgraded to 4000TPD capacity without any modification of Grate cooler. we are producing 4000tpd OPC clinker but the clinker temp is very high 250C after cooler.The only change done in cooler was instead of first grate 6 more grates were made stationary. Since upgradtion we are facing the problem, that extreme corner grate plates in 2nd chamber of the cooler are dislarging due bolts are getting shear.Is clinker high temp have any link with these bolts damaging?
Michael Clark
It is likely that the 20% increase in the load on the cooler and the resultant elevated temperatures are a cause of the shearing of the bolts of the extreme corner plates of the 2nd chamber of the cooler. Has increased expansion allowance been provided for the grate plates operating at these elevated temperatures?
Amir Feroze
Dear Michael Clark :
No increased expansion allowance was provided.What do you recommend us to solve this problem.
Michael Clark
Dear Amir,
My first step would be to ask FLS for their advice.