26 posts
How to increase C3S in clinker
Dear all
Our clinker designed with SR 2.5, LS 95.5. C3S according to calculation is arround 58%. If we wan to increase C3S upt to 62%, can we reduce SR and increase LS a bit without mineralization? Are there any problem with kiln operation and cement quality?
Anybody can share with me about this idea.
Thanks
Tam
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49 posts
Re: How to increase C3S in clinker
Dear Tam
With your case there are more than LS And SR :-
1- Raw meal particle size and mixture ( homogenize )
2- Burning zone Temp, and burning time
3- Cooling ( Rapid cooling ) ( Cooler type )
4- Flame ( wide , long slim )
5- Fuel type
Check all that factors and you can back to me or to any body else to help with that by the way i forget to ask how much Free lime in your clinker %
Best regards
ILA
26 posts
Re: How to increase C3S in clinker
Hello ILA
At the movement, our clinker is acceptable but we wan to increase its quality by increase C3S.
- RM particle size: R200<1.5%, R90 <15%, well homogenise, stdev <1.0
- Burning temp ~ 1400oC
- Grate cooler. Cooling rate is good based on microscopy.
- Flame: quite long flame. We are adjusting the flame to be shorter and stronger.
- Fuel: 3b coal. Will be replaced by 3c coal in near future.
- Freelime is controlled around 1.0-1.5%
My expectation is to keep the same kiln burning condition (temp, flame...) and adjust material a little bit.
Can you please share me your idea with thanks.
Best regards
Tam
77 posts
Re: How to increase C3S in clinker
Dear Mr. Tam,
Please go through the following two results as per your requirement, I will wait for other experts for their comments. It is very difficult to paste the excel results here so if you have any difficulty/query, contact me.
Vikpro
Present Clinker Specification | ||
HM | 2.19 | |
SM | 2.50 | |
IM | 2.59 | |
F.CaO | 0.70 | |
Total | 98.50 | |
So3 | 0.31 | |
Na2O | 0.10 | |
K2O | 0.44 | |
MgO | 1.25 | |
Moisture | 0.00 | |
Cli. Type | I | |
Sio2 | 21.90 | |
Al2O3 | 6.31 | |
Fe2O3 | 2.44 | |
CaO | 67.49 | |
C3S | 58.14 | |
C2S | 18.93 | |
C3A | 12.61 | |
C4AF | 7.41 | |
LSF | 95.5 | |
Liq.ph | 26.52 | |
BI | 2.90 | |
Coating Index | 28.68 | |
BF | 115.10 | |
Predicted Clinker Specification | ||
HM | 2.18 | |
SM | 2.45 | |
IM | 1.65 | |
F.CaO | 0.7 | |
Total | 98.50 | |
So3 | 0.31 | |
Na2O | 0.098 | |
K2O | 0.44 | |
MgO | 1.25 | |
Moisture | 0.00 | |
Cli. Type | I | |
Sio2 | 21.86 | |
Al2O3 | 5.54 | |
Fe2O3 | 3.35 | |
CaO | 67.40 | |
C3S | 62.00 | Hard to grind |
C2S | 15.89 | |
C3A | 9.00 | |
C4AF | 10.20 | |
LSF | 95.9 |
|
Liq.ph | 26.25 | |
BI | 3.23 | Hard to burn |
Coating Index | 29.09 | |
BF | 115.14 | |