reduction of capex in coal milling andd id drying · pdf fileloesche 3-roller coal mill...
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Reduction of CAPd D iand Dryi
2010 Gasification Tech31. – 03.11.2010
LOESCHPresenPresenTobias
tobias.korz@Duesseldorf
PEX in Coal Milling U itng Units
hnologies Conference Washington DC
E GmbHnted bynted bys Korz
@loesche.derf, Germany
Reduction of CAPEX in Co
- Contents -Contents
Introduction
Range of Products
Functional Principle of LOESCHE co
Development of Coal MillsDevelopment of Coal Mills
Module-Design-Concept
Coal Mill Properties
Economy of Scale
References
Conclusion
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al Milling and Drying Units
al mills
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Reduction of CAPEX in Co
- Introduction -Introduction
LOEScompcompCertifManaMana
EmploEmploEmploTurno
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Turno
al Milling and Drying Units
SCHE GmbH is a privately owned pany founded 1906 in Berlin Germanypany founded 1906 in Berlin, Germanyfied according to DIN EN ISO 9001agement: Dr Thomas Loescheagement: Dr. Thomas Loesche
Dr. Joachim Kirchmaoyees in Duesseldorf: 320oyees in Duesseldorf: 320oyees worldwide: approx. 650over 2009: approx Euro 308 millions
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over 2009: approx. Euro 308 millions
Reduction of CAPEX in Co
- Introduction -Introduction
The LOESC
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CHE Group
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Reduction of CAPEX in Co
- Range of Products -Range of Products
Cement raw material grinding plantg g pcement raw material and drive moto
G i di l t f t li kGrinding plants for cement clinker uup to 250 t/h with very high finenes
Dry-grinding plants for coal with a cwide range of coals varying from stlignite, pre-dried lignite, petcoke an
Grinding plants with Loesche grindiGrinding plants with Loesche grindiminerals and ferrous or non-ferrous
Hot Gas Generators with an outlet tcan be operated using traditional he
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ts for a capacity up to 1.200 t/h of p y pors up to 7.000 kW
t 350 t/h d bl t f lup to 350 t/h and blast furnace slag ses
capacity up to 300 t/h, grinding a team coal, bituminous-, anthracite-, nd even biomass pellets
ing mills for the processing ofing mills for the processing of s ores.
temperature of up to 1,000° C which eating media and low-calorific gases
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Reduction of CAPEX in Co
- Functional Principle of LOESCHEFunctional Principle of LOESCHE
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al Milling and Drying Units
Coal Mills -Coal Mills
LOESCHE 3-roller coal mill
Typical Fineness:yp
5% > 90µm to 35% > 90µm
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Reduction of CAPEX in Co
- Development of Coal Mills -Development of Coal Mills
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Reduction of CAPEX in Co
- Development of Coal Mills -Development of Coal Mills
TTec
Tab
No.
Nom
Driv
R fRef
8 x
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Loca
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h i l d t f th LM 43 4 Dchnical data of the LM 43.4 D
ble diameter: 4.3 m
. of grinding rollers: 4
minal capacity: 210 t/h
ve unit: 1.600 kW
fferences:
sold to India and Vietnam
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ation: Tadipatri – Andhra Pradesh, India
Reduction of CAPEX in Co
- Development of Coal Mills -Development of Coal Mills
TTec
Tab
No.
Nom
Driv
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h i l d t f th LM 53 6 Dchnical data of the LM 53.6 D
ble diameter: 5.3 m
. of grinding rollers: 6
minal capacity: 305 t/h
ve unit: 2.300 kW
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Reduction of CAPEX in Co
- Module-Design-Concept -Module Design Concept
2 Roller M2-Roller-Module:
oller (without Tire)( )
ocker Arm
pring Unit (inside)pring Unit (inside)edestal
Different Modules are available for 2-, which are field proven since years
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which are field proven since years.
al Milling and Drying Units
Mill 3 Roller MillMill 3-Roller-Mill
Extended Pedestal
3-, 4- and 6-roller arrangements
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Reduction of CAPEX in Co
- Module-Design-Concept -Module Design Concept
6-roller mill can be operated with only
Redundancy Concept (In-built redu
~60 % of normalnormal
capacity
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4 rollers in case of mechanical defect
ndancy)
80 % f~80 % of normal
capacitycapacity
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Reduction of CAPEX in Co
- Coal Mill Properties -Coal Mill Properties
Typical Characteristics / Standard design
Pressure shock resistant up to 3.5 bar abs.Stop buffers ensure no metal contact betweStop buffers ensure no metal contact betweIndividual guidance of grinding rollers2, 3, 4 or 6 roller design (dependent on throFlat grinding table with conical rollers arrangHydropneumatic spring systemNo torq e introd ction in mill ho singNo torque introduction in mill housingForce guiding elements outside the housing
Special Characteristics
Increased pressure shock resistant up to 8 bp pCounter pressure unit (Turn-down ratio coulSpeed controlled mill drive
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en roller and tableen roller and table
ughput)ged under 15° => shear forces
g
bar abs.d be extended down to 20%)
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Reduction of CAPEX in Co
- Economy of Scale -Economy of Scale
Gasifier 1Gasifier 1
CMD 1
50 %
CMD 2
50 %
CMD 3
50 %50 % 50 % 50 %
StandardStandard
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Gasifier 2Gasifier 2
CMD 4
50 %
CMD 5
50 %
CMD 6
50 %
sol tion!
50 % 50 % 50 %
solution!
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Reduction of CAPEX in Co
- Economy of Scale -Economy of Scale
Gasifier 1Gasifier 1
CMD 1
100 %
CM
100100 % 100
LOESCHELOESCHE
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Gasifier 2Gasifier 2
D 2
0 %
CMD 3
100 %0 % 100 %
E sol tion!E solution!
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Reduction of CAPEX in Co
- Economy of Scale -Economy of Scale
6 x LM 35 3 D
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6 x LM 35.3 D
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3 x LM 53 6 D
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3 x LM 53.6 D
Reduction of CAPEX in Co
- Economy of Scale -Economy of Scale
Top Vie
Footprint 6 x LM 35.3 D
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ew
Footprint 3 x LM 53.6 D
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Reduction of CAPEX in Co
- Economy of Scale -Economy of Scale
Side V
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Footprint 6 x LM 35.3 D
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View
F t i t 3 LM 53 6 D5-Nov-10 17
Footprint 3 x LM 53.6 D
Reduction of CAPEX in Co
- Economy of Scale -Economy of Scale
Ad
Indpn
On
Le
Leavav
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dvantages
dependent from gasifiers location dueneumatic conveying system
ne single CMD unit can feed one gasif
ess installed area
ess investment costs with better vailabilityvailability
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Reduction of CAPEX in Co
- Economy of Scale -Economy of Scale
Grinding Plant - Total Installed Cost *Grinding Plant - Total Installed Cost
Mill capacity for 100 % gasifier feedMill capacity for 100 % gasifier feed
Invest. costs CMD-grinding plant in total
S i **Savings **
* based on European equipment and installation
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** independent from mill size
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Two mills One millTwo millswith 3- or 4-rollers
One millwith 6-rollers
2 x 50 % = 100 % 100 %2 x 50 % = 100 % 100 %
100 % ~ 70 %
30 %~ 30 %
costs
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Reduction of CAPEX in Co
- References -References
n 1990 LOESCHEsupplied its first coal dry grinding plant fordry-grinding plant for an IGCC power plantn Buggenum.gg
Some Figures:
3 x LM 26.3 D10-20 % R 0,09 mm50 t/h each line with50 t/h each line with< 1,0 % H2OHGG fired with SynthesisGG ed Sy es sGas
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Reduction of CAPEX in Co
- Conclusion -Conclusion
Wide range of feed materialsWide range of feed materials
Low wear rates
Experience in Coal Gasification
References of LOESCHE Mills all o
Tailored Grinding Technology
Low Maintenance intervals for High
Continuing Development of the LOE
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over the World for similar applications
h Availability
ESCHE Mills Economy of Scale
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Reduction of CAPEX in Co
Thank you forQuesty
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LM 21.2 D, Dillingen, Germany
al Milling and Drying Units
r your attentiontions?y
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