Michael Clark

Posts

re Calcined clay

First you need to check that your clay has a kaolinite content of more than 40%. Then you need to grind the clay i...

re TSR % in kiln from 4.5 % to 10.%

This sounds a very bad idea. The need to control the air balance around the kiln, cooler and tertiary air duct to ...

re Low LSF of the Kiln return dust

Normally the dust return to the kiln is high LSF because the calcium carbonate is easier to grind than silica. So ...

re Roll press vibration

You need to make sure there is a constant column of material in the chute and hopper above the rolls. Any starving...

re Effect of Free silica/Quartz silica in Kilnfeed

Quartz is very hard to grind and therefore concentrates in the coarse fraction of the kiln feed. The corase grains...

re Silica importance in kiln

The reason you have such a high kiln feed LSF is because you are firing the kiln with high ash coal. If the ash co...

re Raw mix design

I suggest you enrol on the CemNet quality control on-line training course. That covers the topic of raw mix design...

re Water reducer reagent

You can try lignosulphonate.

re High chloride in hot meal

This is a common problem. Chloride typically concentrates to 100x the inputs in the hot meal. Only a slight variat...

re use of Microscopy for Identify the Alk Sulphate in clinker?

Yes, that should be possible under sufficient resolution. If the alkali is present as sulphate then it will be sol...