Post on 16-Jul-2015
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
Successful commissioning of
the OK vertical roller mill at
PT Semen Gresik in Indonesia
By Rune Damborg Hurttia General Manager,
FLSmidth A/S
1
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
The OK mill at PT Semen Gresik
2
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
3
The unique OK mill
1. Best grinding efficiency of any VRM on the market
2. Most versatile & reliable VRM
3. PT Semen Gresik Commissioning result
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
OK OK
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OK mill references: more than 130 sold worldwide
OK OK
OK
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
5
Why choose the OK mill?
1. Best grinding efficiency of any VRM on the market
2. Most versatile & reliable VRM
3. PT Semen Gresik Commissioning result
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
The grinding portion is significantly different from all cement grinding machines on the market
How?
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
7
Pressure distribution in the OK mill grinding bed
Roller
Table
Dam ring
Nozzle ring
Pre-compression zone
De-aeration zone
Grinding zone 180MPa
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
15
20
25
30
35
40
2500 3000 3500 4000 4500 5000Blaine
4000 Blaine ~30kWh/t
3250 Blaine ~25kWh/t
3250 Blaine ~28kWh/t
4000 Blaine ~34kWh/t
Specific power consumption for mill, fan and separator
Best grinding efficiency: OK vs. mills with flat rollers
Sp
ec.
po
wer c
on
s.
(kW
h/
t)
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
9
Why choose the OK mill?
1. Best grinding efficiency of any VRM on the market
2. Most versatile & most reliable VRM
3. PT Semen Gresik Commissioning result
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
0 50 100 150 200 250 300 350 400 450 500 550 600 650 700
OK 25-3
OK 27-4
OK 30-4
OK 33-4
OK 36-4
OK 39-4
OK 42-4
OK 51-6
OK 54-6
OK 58-6
OK 62-6
'
t/h
t/h
OK mill capacity range (reference OPC cement)
1300 kW
1800 kW
2350 kW
3000 kW
3750 kW
4600 kW
5500 kW
6500 kW
7800 kW
9500 kW
11000 kW
For Slag, +20%
motor size
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
OK Mill – Drive options
Conventional gear solution up to 8-9 MW MAAG CEM Drive
up to 14 MW
11 29 April 2015
MAAG MAX Drive up to 14 MW. Siemens MultipleDrive up to 16 MW.
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
Demonstrated fineness on OK mill
0
100
200
300
400
500
600
700
CEM I
OPC
CEM II
PLC
SLAG
Bla
ine m
²/
kg
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
A
B
C
E
F
G
H
I
J
K
L
M
N
O
P
Feed
Clinker
Gypsum
Limestone
Pozzolane
Slag
Fly ash
Trass
Adaptable to all variations of feed compositions
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
OK 33-4 operation with 2 and 4 rollers
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
≤ 5 weeks
≤ 4 weeks
≤ 3 weeks ≤ 2 week ≤ 1 week
90%
95%
100%
105%
110%
115%
120%
A B C D E F G H I J
Plant
% (
Actu
al /
Guara
nte
e)
Capacity Blaine
Fast time to guaranteed production
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
60 mm
Adjustable fulcrum shaft
Eccentric bushing allows change of roller position on table extending the running time of the mill between refurbishment
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
17 29 April 2015
Why choose the OK mill?
1. Best grinding efficiency of any VRM on the market
2. Most versatile & reliable VRM
3. PT Semen Gresik Commissioning result
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
PT Semen Gresik OK 42-4
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
PT Semen Gresik OK mill Performance
Tuban Mill size: OK 42-4
Ordinary OPC cement Performance figures
Guaranteed Achieved
Composition:
Clinker 95% 95%
Gypsum 5% 3%
Lime stone 2%
Grinding aid Yes No
Production, tph 250 253
Blaine cm2/g 3500 3555
Specific energy consumption
Mill (kWh/t) 17.0
Separator (kWh/t) 0.1
Fan (kWh/t) 6.9
Total (kWh/t) 26.8 24.0
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
15
20
25
30
35
40
2500 3000 3500 4000 4500 5000Blaine
4000 Blaine ~30kWh/t
3250 Blaine ~25kWh/t
3250 Blaine ~28kWh/t
4000 Blaine ~34kWh/t
Specific power consumption for mill, fan and separator
Best grinding efficiency: OK vs. mills with flat rollers
Sp
ec.
po
wer c
on
s.
(kW
h/
t)
PT Semen Gresik
The information contained or referenced in this presentation is confidential and proprietary to FLSmidth and is protected by copyright or trade secret laws.
PT Semen Gresik Performance on PPC
21 29 April 2015 Capability presentation
PT Semen Gresik OK 42-4
Blended cement PPC: Clinker: 74.5% Gypsum: 3.4%, Limestone: 3.3%, Trass: 18.8%
Achieved
Grinding aid No
Production tph 302
Blaine 3690
Specific energy consumption
Mill (kWh/t) 13.5
Separator (kWh/t) 0.1
Fan (kWh/t) 5.3
Total (kWh/t) 18.9