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Mobile grinding plant
for solid fuels
2 3
0
2000
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1930 1970 2010 2050 2090
Loesche technology – always one step ahead
The first spring-loaded air-swept grinding mill in the world,
constructed by the original company Curt v. Grueber Maschinenbau-
Anstalt, Teltow near Berlin, is launched onto the market in 1928
under the name Loesche Mill and has 2 grinding rollers.
Loesche’s vertical grinding mills form the heart of these plants for
dry grinding of the following materials:
• Coal
• Cement raw material
• Clinkers / granulated slag
• Industrial minerals and
• Ores.
Loesche has designed and constructed the world’s largest and
most efficient grinding plants for its customers.
Loesche designs plants specifically for the required process
stages and equips them with the necessary technology.
This includes:
• Processing plants and storage of materials
• Transport and conveying systems
• Loesche vertical mills
• Loesche hot gas generators
• Filtration and separation systems
• Dosing and weighing systems
• Steel and piping system construction
• Structural and civil engineering
• Peripheral infrastructure
• Loesche electrical and automation technology
Loesche has designed a mobile coal grinding plant (CGPmobile),
for the local supply of thermal processes with solid fuels.
The plant, newly developed by Loesche, is designed within
containers, to enable it to be used at any location. The design
parameters are listed in the adjacent table.
The mobile coal grinding plant can process different types of
coal under almost all environmental and physical conditions and
make it available to a downstream thermal process.
Loesche is certi� ed according to EN ISO 9001, our grinding plants
meet all national and international safety requirements.
Mill size LM 9.200 D
Throughput 2 – 4 t/h
Fineness 5 – 45% R 90 μm
Mill grain feed size < 30 mm
Crusher grain feed size < 120 mm
Safety standards according to ATEX (optional NEC)
Pressure shock resistance 3.5 bar (a)
Hot-gas generator LOMA heater Type LF 6
The supply of energy today comes mainly from the following
sources:
• Fossil fuels (oil, gas, coal)
• Nuclear fuels
• Regenerative energy (biomass, solar energy, wind energy, etc.)
• Industrial products containing hydrocarbons / waste products
(petroleum coke, blast furnace gas, synthesising gas, etc).
The following graph displays the world energy reserves of the major
primary energy sources as “history-future” scenario for the periods
from 1930 until 2090 as viewed from today’s perspective.
It clearly shows that only the fossil fuel coal will continue to be
available in appreciable quantities for the global economy.
Based on these forecasts, Loesche continues to develop grinding
plants for this type of fuel. This is especially done to substitute the
rare energy sources such as oil and gas with coal as an energy
source for thermal processes. Parallel to this, Loesche has
developed a hot gas generator with burner for the combustion
of solid fuels based on the Loesche steel combustion chamber
(LOMA heater), putting it in the position of supplying both plant
technology and expertise starting from grinding to the availability of
process heat.
Loesche builds coal grinding plants for a throughput of 2 t/h to 300
t/h and is the market leader in the sector of self-inert, central coal
grinding plants for hard coal and the grinding of brown coal in verti-
cal mills.
Decades of experience is also the basis for manufacturing container-
type coal grinding plants with the necessary safety technology.
Sources of energy through the ages
World Energy Reserves (2010 calculation)
History Future
Nuclear energy
Coal
Gas
Oil
up to 2010 starting 2010
mto
e
(mio
t o
il eq
uiva
lent
)
Year
4 54 5
M
M
1 1
2 2
4
5
6
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15 16
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3
– Process flow sheet
1 Raw coal silo 2 Conveyor belts 3 Conveyor belt 4 Crusher 5 Magnetic separator 6 Conveyor belt 7 Vertical conveyor 8 Conveyor belt 9 Metal detector 10 Diverter chute 11 Rotary gate 12 Feed screw 13 Loesche mill LM 9.200 D 14 Filter with rotary gate 15 Volumetric � ow measurement 16 Process gas fan 17 Coal dust dosing 18 Stack with stack fl ap 19 Return gas fl ap 20 Fresh air supply 21 Hot gas generator
seal air
water injection
to coal dust consumer
7
1
1110
2
12
3
13
4
14
5
15
6
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17
8
18
9
19
20 21 22 23 24 25 26 27 28
1
1110
2
12
3
13
4
14
5
15
6
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7
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8
18
9
19
20 21 22 23 24 25 26 27 281
1110
2
12
3
13
4
14
5
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6
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7
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8
18
9
19
20 21 22 23 24 25 26 27 28
1
1110
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20 21 22 23 24 25 26 27 28
1
1110
2
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3
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5
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9
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20 21 22 23 24 25 26 27 281
1110
2
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3
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5
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9
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20 21 22 23 24 25 26 27 28 1
1110
2
12
3
13
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5
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9
19
20 21 22 23 24 25 26 27 281
1110
2
12
3
13
4
14
5
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6
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7
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8
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9
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20 21 22 23 24 25 26 27 281
1110
2
12
3
13
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5
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20 21 22 23 24 25 26 27 28
1
1110
2
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19
20 21 22 23 24 25 26 27 28
1
1110
2
12
3
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9
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20 21 22 23 24 25 26 27 28
1
1110
2
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20 21 22 23 24 25 26 27 28
1
1110
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20 21 22 23 24 25 26 27 28
1
1110
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20 21 22 23 24 25 26 27 28
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1110
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20 21 22 23 24 25 26 27 28
8 9
Centralised supplyCentralised coal grinding plants are generally integrated into
the systems requiring the coal dust for their process. Centralised
grinding plants are built only in rare cases to supply different
customers with coal dust in a certain area.
Brown coal grinding plants by Loesche are the exeption here.
There are now 3 such plant complexes in Germany which
transport the coal dust in special vehicles for distances of up
to 1000 kilometres.
The large-scale substitution of rare energy sources with coal
dust is possible with centralised coal grinding plants in structural
developed regions.
Decentralised supplyThe mobile coal grinding plant developed by Loesche closes
the coal dust supply gap. Long transport distances with special
vehicles are eliminated, since it is possible to install such plants at
any location around the globe.
The more economical use of coal in comparison with gas and oil
lowers operating costs considerably and ensures plant operators
maximum profit with increased flexibility.
Coal dust supply routes
Features• Self-inert Loesche coal grinding plants, decades of experience, more than
300 references
• Grinding of all types of coal possible, from brown coal to anthracite
• Grain feed size < 110 mm
• Fineness size range of coal dust 5%R 90μm to 45%R 90μm
• Throughput of 2 – 4 t/h coal dust
• Emission values correspond to TA air (German regulations)
• Safety concept according to ATEX (optional NEC)
• Plant is installed in ISO containers
Advantages
• Standardised plant design• Simplified approval procedure• Delivery period ≤ 6 months• Installation and commissioning
≤ 3 weeks• Adaptation to the required output
at the location• High on-site mobility, implementation
approximately 2 to 3 weeks• Plant can be financed by leasing
• High economic efficiency through substitution of gas or oil with coal
• Fast amortisation• Low transport costs• No foundation required• Weather protection for plant
components• Full pre-service testing before delivery• Short supply times for spare parts
due to standardisation
10 111110
Areas of application for decentralised processing and supply
Asphalt mixing plant
+ burner
Full integration in asphalt mixing plant for direct drying and heating of mineral substances and recycling asphalt.
Process steam generation
+ burner + steam generator:Indirect drying for the food, pharmaceuti-cal, chemical and waste disposal, paper, mineral oil industries, etc.
Process heat
+ burner + LOMA hot gas generatorDirect drying for the steel, coal, cement, mineral, ore, animal-feed industries and processing of biomass.
Decentralised power generation
+ steam generator + turbineCombined heat and power for supplying industry and communities with electricity and heat in mains parallel operation or as an isolated solution for areas with under-developed infrastructure.
Loesche – worldwide presence
Loesche is an export-oriented company run
by the owner, which was established in 1906
in Berlin. Today the company is internatio-
nally active with subsidiaries, representatives
and agencies worldwide.
Our engineers are constantly developing
new ideas and individual concepts for grin-
ding technologies and preparation processes
for the benefit of our customers. Their com-
petence is mainly due to our worldwide
information management.
This ensures that current knowledge and
developments can also be used immediately
for our own projects.
The services of our subsidiaries and agen-
cies are of key importance for analysis,
processing and solving specific project
problems for our customers.
Please visit our homepage at
www.loesche.com for up-to-date
information on our overseas companies.
Loesche GmbHHansaallee 24340549 DüsseldorfTel. +49 - 211 - 53 53 - 0Fax +49 - 211 - 53 53 - 500Email: [email protected]
Loesche Automatisierungstechnik GmbHZum Pier 5244536 LünenTel: +49 - 231 - 98 70 10Fax: +49 - 231 - 98 70 10 - 20 E-mail: [email protected]
BrazilLoesche Equipamentos Ltda.Rua México 119 sl. 190820031-145 Rio de Janeiro, BrazilTel. +55 - 21 - 22 40 79 00Fax +55 - 21 - 22 20 94 40Email: [email protected]
IndiaLoesche India Pvt. Ltd.D - 83, Sector - 2Noida - 201301U.P., India Tel. +91 - 120 - 40 18 500 +91 - 120 - 24 44 205 - 207Fax +91 - 120 - 40 18 590 - 91 +91 - 120 - 24 43 327Email: [email protected]
People’s Republic of China Loesche Mills (Shanghai) Co., Ltd.No. 568, Jinhong Road(near No. 555, Chunhe Road)Baoshan District,201901 Shanghai, P. R. ChinaTel. +86 - 21 - 5180 6100Fax +86 - 21 - 5180 6101Email: [email protected]
People’s Republic of China Loesche Mills (Shanghai) Co. Ltd.5 Dongzhimen South Street Room 817-818, CYTS Plaza Dongcheng District, 100007 Beijing, P. R. ChinaTel. +86 - 10 - 5815 6205Fax +86 - 10 - 5815 6220 Email: [email protected]
RussiaOOO LoescheBerezhkovskaya Naberezhnaya 16a/2P.O. Box 97, 121059 MoscowRussian FederationTel. +7 - 495 - 988 50 81Fax +7 - 495 - 988 60 86Email: [email protected]
Socialist Republic of VietnamLoesche GmbH Viet Nam Representative office60 Nguyen Dinh Chieu Str.Dakao Ward, Dist. 1HCM - Ho-Chi-Minh City,Tel. +84 - 8 - 39 10 45 62Fax +84 - 8 - 39 10 45 26 E-Mail: [email protected]
South AfricaLoesche South Africa (Pty.) Ltd.55 Empire Road, Empire Park, Block C2193 Parktown, South AfricaTel. +27 - 11 - 482 29 33Fax +27 - 11 - 482 29 40Email: [email protected]
SpainLoesche Latinoamericana S.A.U.Condesa de Venadito 1, Planta 428027 Madrid, SpainTel. +34 - 91 - 458 99 80Fax +34 - 91 - 457 10 17Email: [email protected]
United Arab EmiratesLoesche Middle East FZEP.O. Box 262 622Jebel Ali, Dubai, U.A.E.Tel. +971 - 4 - 886 59 11 Fax +971 - 4 - 886 59 22Email: [email protected]
United KingdomLoesche Energy Systems Ltd.2, Horsham GatesNorth StreetHorsham, RH135PJ, United KingdomTel. +44 - 1403 - 223 101 Fax +44 - 1403 - 223 102 Email: [email protected]
USALoesche America, Inc.20170 Pines Boulevard, Suite 301Pembroke PinesFlorida 33029, USATel. +1 - 954 - 602 14 24Fax +1 - 954 - 602 14 23Email: [email protected]