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Solid Fuel Firing Systems
and Components

Hitachi Power Europe
From Coal to Electricity
d
b
f
c
e
a
Generation of electricity in a typical coal power plant
Contents
Hitachi Power Europe 2
Selection Criteria 5
Furnace 6
Mill Feeders 8
Pulverizers 10
Pulverized Fuel Burners 14
Burn-Out Grate 20
Ash Removal Systems 21
Replacement Parts Service 23
A Before being injected into the furnace, the raw coal is crushed down to a fine pulverized form
in the coal mills.
2 Flue gases up to 1,450 °C arise from pulverized fuel combustion in the steam generator furnace.
The liberated heat is used to generate high-pressure and high-temperature steam.
3 The steam is directed to a turbine; it flows onto the blade wheels and turns the turbine shaft.
An attached generator then generates the electrical power.
4 With the help of catalysts, the nitrogen oxides in the flue gas react in the DeNO x system
to produce nitrogen and water vapor.
5 Ash particles adhere to electrically-charged surfaces in the electrostatic precipitator;
they are rapped and removed from the flue gas.
6 In the flue gas desulphurization system (FGD) lime slurry or suspended pulverized limestone
bind the sulphur dioxide coming from the flue gas. The final product arising is gypsum.
2

Technology Leader with Excellent References
Whether as a plant constructor or as a supplier of key components, Hitachi Power Europe
GmbH (HPE) is one of the technology and market leaders in fossil-fired power plants.
The company – a subsidiary of Hitachi, Ltd. – has its head offices in Duisburg. HPE designs
and builds not only power plants but also supplies all the key components such as utility
steam generators, environmental engineering, turbines and pulverizers. In so doing, HPE can
turn back to a track record going back over many years, an extensive list of references and
to the outstanding know-how of its workforce. Within the Hitachi Group, HPE is responsible
for the markets in Europe, Africa, Russia (incl. Belarus) and India.
Hitachi Power Europe GmbH, Duisburg
Babcock Fertigungszentrum GmbH, Oberhausen
BGR Boilers Private Ltd., Chennai
Donges SteelTec GmbH, Darmstadt
1 2
6
4
7
Hitachi Power Africa (Pty) Ltd., Johannesburg
Hitachi Power Europe Service GmbH, Duisburg
Meeraner Dampfkesselbau GmbH, Meerane
3
5
Coal Firing Systems 3

Firing Systems and Components
Ensuring Economic Efficiency, Conserving Resources
As one of the global cutting-edge companies in power plant design and construction,
Hitachi Power Europe provides highly advanced firing systems which can be used in their
entirety or as single components for practically all fossil fuel qualities.
Project Country Kunde MW Fuel Order obtained
Niederaußem Germany RWE Energie AG 1 x 1,012 Lignite 1995
Boxberg Q Germany VEAG 1 x 907 Lignite 1995
Elbistan B Turkey TEAS 4 x 360 Lignite 1998
Dezhou 5 / 6 China CNTIC 2 x 660 Anthrazit 1998
Hamborn Germany RWE Energie AG 1 x 260 Blast Furnace Gas 1999
Iskenderun Turkey Siemens / STEAG 2 x 660 Hard Coal 2000
Neurath F & G Germany RWE Rheinbraun AG 2 x 1,100 Lignite 2003
Baosteel China Baoshan Iron & Steel Co. Ltd 1 x 350
Blast Furnace Gas, Coke
Oven Gas, Heavy Fuel Oil
2005
Boxberg R Germany Vattenfall Europe 1 x 670 Lignite 2005
Walsum 10 Germany Evonik 1 x 790 Hard Coal 2006
Moorburg A / B Germany Vattenfall Europe 2 x 820 Hard Coal 2006
Datteln Germany E.ON Kraftwerke 1 x 1,100 Hard Coal 2006
Gent Belgium Electrabel 1 x 300 Blast Furnace Gas 2006
Medupi South Africa Eskom 6 x 790 Hard Coal 2007
Maasvlakte Netherlands E.ON Kraftwerke 1 x 1,100 Hard Coal 2008
Wilhelmshaven Germany Electrabel 1 x 750 Hard Coal 2008
Kusile Südafrika Eskom 6 x 790 Hard Coal 2008
Rotterdam South Africa Electrabel 1 x 790 Hard Coal 2008
Maja India NTPC 2 x 660 Hard Coal 2012
Solapur India NTPC 2 x 660 Hard Coal 2012
Raghunathpur India NTPC 2 x 660 Hard Coal 2012
Kozienice Poland Enea 1 x 1,000 Hard Coal 2012
Selection of steam generator orders since 1995
HPE develops solutions, which are just as flexible as our customers’ requirements, for energy
suppliers and industry alike. This can be seen most clearly from the large number of different
types of references (see table) available. A high degree of operational efficiency and conservation
of resources /environment is looked upon as an obligation and challenge by HPE in
designing and manufacturing new utility steam generators. This also applies to the modernization
and enhancement of existing power plants and their components, such as pulverizers
and burners.
It goes without saying that HPE as a certificated DIN ISO 9001 company always orientates
itself to the best possible quality.
4

What Counts is the Choice
The planning and design of firing systems is primarily dependent on the fuel used and
must be individually tailored – something requiring above-average achievements on the
part of our designers.
Whilst there is no secret about up-to-date firing systems, one still needs considerable
know-how and a long track record in plant concepts and specific sequences. Playing a prime
role here are the fuel properties themselves, such as calorific value, moisture and ash content,
volatiles and coal grindability.
Advanced firing systems with a staged combustion sequence lower emissions and require
substantial design and material selection outlay on the basis of the standards and legislation
in force. This applies equally to the selection and construction of the firing components.
Tangential firing system
Slag-tap firing system
Cyclone firing system
U/double U firing system
Hard coal
Dry bottom ash
firing system
Normal volatile coal
Low volatile coal
Front firing system
Double front firing system
Opposed firing system
Corner firing system
Double front firing system
Opposed firing system
Lignite
Dry bottom ash
firing system
Direct firing system
Direct firing system
with vapor separation
Direct firing system
with vapor recycling
Biomass
Dry bottom ash
firing system
Direct firing system
Indirect firing system
Coal Firing Systems 5

Furnace
Pulverized Hard Coal Firing System
The principal features are:
■■
Uniform liberation of heat
■■
Low nitrogen oxide emissions
coupled with practically a total
fuel transformation
■■
Oxygen-rich flue gas atmosphere
right next to the boiler tube walls
Fossil-fired power plants are currently enjoying a boom across the world. And hard coals,
in particular, can be widely used for energy transformation purposes.
The decision to design a firing system with dry bottom ash removal or as a slag-tap furnace
largely depends on the fuel properties themselves. Volatile matter, ash content and chemical
ash composition have always been of decisive significance.
The decision-making process was simplified with the launching of innovative DS ® burners
followed by tremendous combustion stability. Modern steam generators are usually designed
today solely as dry ash discharging boiler plants at low cost and high efficiencies. This applies
to practically the entire range of fuels irrespective of their effects from high volatile bituminous
coal to anthracite.
For many years now, the linear arrangement as front, double-front or opposed firing equipment
complete with vertically offset burner levels has proved to be the most suitable system
for pulverized hard coal firing systems.
The clear arrangement of mill and burner level ensures that the highly complex systems are
clearly designed and arranged. This, in turn, creates a high degree of accessibility and ease
of maintenance.
CAD model of the Datteln 4
utility steam generator
■■
1 x 1,100 MWel / 1 x 2,939 t/h
■■
Benson ® Steam generator
■■
Hard coal
■■
Steam parameters:
Superheated steam: 600 °C / 305 bar;
Reheater: 620 °C / 78 bar
■■
Entering into service: 2011
■■
Scope of delivery:
Utility steam generator including
all the related components, engineering,
installation and commissioning
6

Pulverized Lignite Firing System
Combustion systems for lignite operated steam generators can be designed as direct
systems for the use of raw lignite or as combined systems using raw and pre-dried lignite
in the same furnace.
Even with the usage of very high ash lignites, the new HPE lignite swirl burners (RS ® burners)
do not need any vapor separation.
The excellent igniting stability of the RS ® burners allows the burners to be arranged in a
different way at the combustion chamber – for instance in the form of an all-wall firing system.
Such a system combines the benefits of linear firing equipment with those of a tangential
firing system. The firing steps alone enable the 200 mg/m 3 NO x standard to be undercut in
RS ® burners. As a result, there is no need for complex, multiple air-staging concepts for
adherence to the NO x standards.
The stable ignition of RS ® burners produces a marked improvement in the percentage load
operations of lignite firing systems. Even with problematical fuels, the excess stoichiometric
operation of these burners has a positive effect on fouling and slagging and it optimally
protects the evaporator tube walls from corrosive flue gas products.
The future will see boiler plants mainly being planned for the use of dry pulverized lignite with
interim storage.
CAD model of the Boxberg R
utility steam generator
■■
1 x 670 MWel / 1 x 1,710 t/h
■■
Benson ® Steam generator
■■
Lignite
■■
Steam parameters:
Superheated steam: 600 °C / 315 bar;
Reheater: 610 °C / 72 bar
■■
Entering into service: 2010 / 2011
■■
Scope of delivery:
Utility steam generator including
all the related components, engineering,
installation and placing into service
Coal Firing Systems 7

Mill Feeders
Belt conveyor
Reliability even under Demanding Requirements
Designed as coal bunker dischargers, the mill feeders supply the pulverizers with raw coal –
evenly dosed and in keeping with boiler load requirements.
Even under very demanding requirements, the Hitachi Power Europe designed mill feeders
operate both reliably and safely.
Experienced HPE staff establish the optimum feeder in keeping with the requested fuel quantity,
design directives (including DIN EN 12952-9, NFPA 85 F) and customer requirements
(for instance, volumetric and gravimetric metering).
Other selection factors are the various bulk material properties, such as coal flow and erosion
behavior. The belt speed is determined by the quantity conveyed. Purge air is supplied to the
housing to stop condensate forming and, in turn, to stop corrosion.
8

In hard coal boiler units, belt conveyors are used to discharge the raw coal from the
bunker. In lignite plants, drag-chain conveyors together with belt conveyors are used to
discharge the raw coal from the bunker.
Belt conveyor
The belt conveyor with corrugated edge belt ensures high outputs, uniform bunker discharge
and continuous mill charging – even under low conveying rates. This design permits volumetric
/ gravimetric metering and quantities conveyed of up to 120 t/h. Conveyed material falling
to the bottom of the feeder is transferred to the coal downcomer by the simultaneously running
scraper chain.
Raw coal
d
a
g
A Bed depth limiter
B Belt drive station
b
h
c
C Belt tensioning station
D Corrugated edge belt
E Scraper chain
F Lower belt supporting roller
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G Bunker shut off gate
H Conveyor-type weigher (optional)
Drag-chain conveyor
Drag-chain conveyors are meant for limited conveyed quantities of up to approx. 40 t/h –
this can, in special cases, be raised to 70 t/h. The fuel is discharged opposite to the direction
of conveying. The drag-chain conveyor principle allows both a compact design with minimum
spacing between bunker discharge and conveyor dumping as well as a possible large
spacing between material charging and dumping.
Raw coal
e
a
d
b
c
A Bed depth limiter
B Belt drive station
C Tensioning station
D Forged fork link chain
E Bunker shut off gate
Coal Firing Systems 9

Pulverizers
Excellent Results
In the mills, the raw coal is simultaneously pulverized, dried and evenly distributed to the
coal burners. Hot air or flue gases transfer the pulverized fuel to the burner and reduce the
moisture in the coal.
MPS ® Mill
MPS ® Bowl & Roller Mill
The MPS ® bowl & roller mill from Hitachi Power Europe grinds and dries hard coals and
difficult-to-grind lignite with a low moisture content to pulverized fuel and distributes them
evenly directly to the burners.
Various-sized mills for throughputs ranging from 10 t/h to 200 t/h can be supplied. Constant
refinements and impro vements have led to excellent crushing results with high fineness
a
b
grades from raw coal found throughout the world. The positive operating
properties and low energy requirements have contribu ted in no small
measure to the success of these mills.
c
e
g
f
d
A Rotary classifier
B Classifier drive
C Grinding rollers
E Grinding table
F Gear
G Motor
D Hydro-pneumatic system
10

Long Service Life
RKD Mill
RKD Tube Ball Mill
The Hitachi Power Europe RKD tube ball mill grinds and dries difficult-to-pulverize hard coals
(particularly low-volatile coals such as lean coal and anthracite). This mill type can deal with
approx. 150 t /h of coal. Depending on size and space, the tube ball mill can be designed
with drum or neck bearing and be of the single or double pass type.
a
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A Rotary classifier
B Oversize return
C Neck bearing
D Drive gear rim
E Grinding ball filling
F Feed spiral conveyor
G Classifier riser
Coal Firing Systems 11

Pulverizers
Low Energy Requirements
Pulverizing lignite is particularly challenging in view of its high moisture content and the
considerable throughputs involved. Here again Hitachi Power Europe has the right products
in this segment.
DGS ® Mill
DGS ® Integral Fan Distributor and Beater Mill
HPE supplies DGS ® mills of various sizes up to a 180 t/h throughput for drying and pulverizing
raw lignite and brown coals with a high moisture content.
DGS ® technology involves the raw coal and flue gases being initially put through the precrushing
beater section of the beater wheel. This ensures excellent air and coal dust distribution
into the beater wheel. Crushing in the DGS ® mill is usually so
intensive that adequate grinding fineness can be obtained in one
a
working operation – without the need of an additional classifier.
c
This both raises the pressure balance and cuts back on energy
f g
b
g
d
requirements. The DGS ® mill has stood the test of time particularly
with difficult-to-work lignites – something that explains
its considerable lifetime and unrivalled properties.
e
A Flue gas gate valve
B Inlet housing
C Beater shaft
D Beater wheel
E Coupling
F Motor
G Bearing
12

Easy Maintenance
NV Mill
NV Wet Coal Fan Mill
The NV mills ranging from 10 t/h to 140 t/h throu ghputs are for crushing high moisture
content lignites for direct injection into the furnace.
Together with the flue gases, the raw lignite is brought for crushing purposes into the beater
wheel. It acts as a fan impeller fitted with beater plates. Baffle-type classifiers ensure that the
a
e
required fuel fineness for combustion is fulfilled.
The high-tech NV mill more than meets the ongoing demands
worldwide of operational availability and low costs.
f
g
b
c
d
A Gate valve housing
B Grinding chamber door
C Grinding chamber
D Beater wheel
E Baffle-type classifier
F Double bearing
G Motor
Coal Firing Systems 13

Pulverized Fuel Burners
Optimum Combustion
How do you lower NO x emissions and at the same time control as many different fuels as
possible Questions like these are today determining the concept of pulverized fuel firing
systems and burners.
DS ® Burners
300
1,800
1,667 1,697
260
1,607
1,487
1,600
250
1,303
1,400
200
1,095 1,119 1,135 1,165
1,200
184
144
859
1,000
150
879 9591,031 787
138
120 120
800
643
120
100
88
600
383
80
72 72
64
46
60 400
263
50
8 9 9 129
175
20
24
16 30 30
200
8 1 0
0 0 0
0 0
1991 1993 1995 1997 1999 2001 2003 2005 2007 2009 2011 2013 2015
n Total number n Year of commissioning
DS ® burners were introduced early in the 1990s and continuously developed over the years.
The burner’s principle is focused on fuel treatment to prepare the particles for the pyrolysis
and ignition process that follows. The characteristic features of this burner type are expressed
by the definition of initiation and course of ignition.
Ignition = Pyrolysis + Oxidation
This type of burner with a concentric design and swirled flow streams in all sections, has its
field of application mostly in direct firing systems using all kinds of pulverized fuels.
The DS ® burner concept utilizes operating experience from more than 1,100 applications.
Pulverized Fuel
Core Air
Secondary Air Tertiary Air
Adjustable
Swirlers
Fuel Nozzle
Igniter
14

DS ® burners with an operating range of 1: 3,5 are available for direct operated combustion
systems in a range of thermal capacities from 20 to 100 MW.
Fuels
Burner Classes (MW thermal capacity)
20 40 60 80 100
Lignite* x x x
Sub-bituminous coal x x x x
Bituminous coal x x x x x
Anthracite x x x
Biomass (co-firing with coal) x x x x
Biomass (standalone) x x
* Pulverizer operation on air basis
DS ® burner design for a windbox arrangement
Basically developed for bituminous coal, these burners are applicable now for all carbon
containing solid fuels like anthracite, sub-bituminous coal, lignite and biomass of different
structures. The DS ® burner is suitable for applications with individual air control as well as for
the use in common windboxes.
Coal Firing Systems 15

Pulverized Fuel Burners
DST Burner
The DST burner has been developed on the basis of the DS ® burner concept for use in
indirect firing systems.
Core Gas Secondary Gas Tertiary Gas
Pulverized Fuel
Oil Lance
Swirler
Fuel Nozzle
This burner type is the right one for pre-dried pulverized fuels like anthracite, bituminous and
sub-bituminous coal, lignite, peat, biomass of various types as well as further carbon-containing
pulverized fuels separately or in any combination. Dust loading can range from 0.5 up
to 15 kg fuel / kg medium.
DST burners can be used for atmospheric operation or in pressurized systems with air and / or
oxyfuel atmosphere.
Air, inert gas and flue gas with or without oxygen enrichment can be used as the transport
medium for the fuel.
DST burners can be operated with a turndown rate up to 1:17. As a result a boiler can be
operated from lowest start-up load up to full load conditions with an unlimited load response
rate. Due to an extremely high PF / PA ratio the NO x emission rate is rapidly reduced.
DST burners are available for thermal capacities from 20 to 60 MW for all kinds of pre-dried
pulverized fuels used in indirect firing systems.
Fuels
(pre-dried & pulverized)
Burner Classes (MW thermal capacity)
20 40 60
Lignite x x x
Sub-bituminous coal x x x
Bituminous coal x x x
Anthracite x x x
Biomass (standalone) x x x
16

DS ® burner direct (left)
DST burner indirect (right)
Comparison of both burner systems
5
Coal / PA Ratio [kg/kg]
4
3
2
1
0
Burner control range (as tested)
Indirect firing system, DST burner
Indirect firing system, DST burner
Direct firing system, DS ® burner
minimum load range
0 5 10 15 20 25 30 35 40 45
Burner capacity [MW]
Energy storage and plant flexibility are the main challenges of power generation in the future.
With the DST burner control range of 1:17 coal firing systems will be best prepared to meet
the resulting operating demands.
Coal Firing Systems 17

M
M
M
M
M
M
M
M
M
M
M
M
Pulverized Fuel Burners
DST Burner
Combined firing system
M
M
100 %
75 %
M 20 M 40 M 30 M 10
50 %
M M M M
M
25 %
Flexible Load Range
0 %
Flexibility is what is demanded of power generation now and in the future. With development
of the DST burner, flexible concepts using indirect firing systems are now becoming the focus
of interest.
This system offers lots of advantages like:
■■Turn down of investment and operating costs
■■Independency of mill and boiler operation
■■Wide load range with all burners in service
■■Quick response in case of high load change demand
■■Boiler operation without supplementary fuel (oil/ gas) – even for start-up
■■Exact definition of burner air ratios that enable boiler excess air below 10 %
The combined firing system using the advantages of the direct and indirect systems is the
consequential answer to the fascinating questions surrounding coal fired power plants in
facing the challenges of the future.
18

RS ® Burner
70 160
60
50
40
30
20
10
0
4
4
4
0
10
6
10
0
16
6
16
48
64
76 76
12
100 100 100 100 100 100 100
0
0 0 0 0 0 0 0 0
1994 1996 1998 2000 2002 2004 2006 2008 2010
24
124
24
124
n Total number n Year of commissioning
142
18
2012
140
120
100
80
60
40
20
0
RS ® Burners
Orders since 1994
The extensive findings acquired from developing DS ® burner technology (flame stability, ignition
as well as air staging in the burner proximate zone) are also available for lignite firing
technology purposes.
What has been developed is the lignite RS ® burner. In contrast to the conventional jet burner,
the RS ® burner permits control of the fuel / air mixture and flame propagation in the burner
proximate zone.
Secondary Air
Radiant
Shielding Pipe
Pulverized Fuel
Cooling Air
Secondary Air Deflecting Cone
Coal Dust
Coal Firing Systems 19

Burn-Out Grate
High Efficiencies
In lignite coal or peat-fired plants with a high proportion of xylitol or fibers in the fuel,
the proportion of unburnt residue in the boiler hopper ash can be extremely high and this
impairs firing efficiency.
Burn-out grate diagram
a
Ash
n b c
f
d
A Boiler furnace hopper
e
B Refractory jacket of retarded
combustion reactor
C Water seal gasket
D Firmly fixed grate supporting bars
g
E Grate carriage
F Grate surface
G Hydraulic system for grate
carriage and deashing flap
H Ash hopper
I Cooling and combustion air
J Deashing flap
i
h
j
k
l
K Ash discharge chute
L Shutoff gate valve in ash
discharge chute
M Deasher
m
N Monitoring system
The optimum designed burn-out grate ensures that the ash burnout in the boiler hopper is
improved to over 80 % – thus substantially raising the overall efficiency of the boiler plant.
In addition, afterburning results in additional heat input into the boiler hopper, which would
otherwise be relatively cold. This leads to an even distribution of temperature in the furnace.
20

➞➞
Ash Removal
Stable in the Extreme and Long Lasting
Ash removal systems have been part of HPE’s range of production and supplies for many
years now. This applies to bottom ash removal as well as to the transfer of ash accumulating
in the course of air heater and electrostatic precipitator ash removal.
Submerged scraper conveyor
Submerged scraper conveyor functions:
■■
Air sealing to the boiler hopper
■■
Ash cooling
■■
Ash conveying
■■
Inlet for furnace inspection
Submerged scraper conveyor for hard coal-fired systems
e
c
a
b
i f
h
1 Bottom ash
i
f
k g j k d k g
Submerged scraper conveyor for lignite-fired systems
c
a
k g j k d k g
k
e
h
2 Transfer chute with immersion piece
3 Expansion joint
4 Submerged scraper conveyor
5 Drive station frequency controlled
6 Tensioning station
7 Idler stations
8 Discharge chute
9 Cooling water inlet
J Overflow
K Travelling rails
Conveying
direction
Coal Firing Systems 21

Other Ash Removal Systems
HPE provides a broad range of ash handling systems. These systems apply to ash handling
for furnace bottom ash removal and also to the ash removal from all downstream ash
accumulation points.
Our systems offer a lot of benefits: they are stable in the extreme, wear parts are long lasting
and both the energy requirements and operating / upkeep costs are low. HPE provides the
entire range for utility steam generators with pulverized hard coal and lignite firing: from design,
manufacturing and erection up to commissioning the complete ash disposal systems
including loading systems for transport by truck, rail and ship.
Ash Removal
Components
Our Other
Ash Removal Systems
■■Ash silos and dewatering bunker
■■Single-strand chain conveyors
■■Apron conveyor
■■Screw conveyors
■■Single and double roller crushers
■■Hammer crushers
■■Rotary feeders
■■Single and double pendulum flap
■■Shut off gates
■■Ejectors
■■Bucket-type conveyors
■■Sluice ways
■■Dry mechanical ash removal systems
■■Hydraulic ash removal systems
■■Pneumatic ash removal systems
■■Mill reject systems
■■Re-cooling systems for submerged
conveyor overflow water
22

Replacement Parts Service
As a designer and manufacturer of original components, HPE is the ideal partner to contact
when modernization or replacement parts are needed.
Our extensive expertise derived from designing and delivering utility steam generators with
the associated components over many years enables our HPE experts to provide professional
solutions matched to customer requirements in the matter of plant design and operations.
Optimized plants ensure that performance and availability are raised and that efficient operations
are attained as far as possible. As a competent and flexible partner, HPE’ expertise is
available in the fields of process engineering, plant optimization, measuring technology, plantinternal
inspection, component installation and commissioning. At the same time, HPE supports
customers in the design and configuration of their future plants – from the technical
point of view (planning, design, optimizing) and in the matter of operating economy analyses.
Rapid Service from
a Competent Partner
Feeders
conveyor
Coal Mills
Burners
Ash submerged
scraper conveyor
Manufacturing from
a single source
Belts
Wear parts
Pulverized fuel
line elbows
Chains
As stakeholder in Babcock Fertigungszentrum
GmbH in Oberhau-
Chains Linings Pulverized fuel lines Scraper bars
sen, we are in the closest possible
Drives Nozzle rings Impact plates Wear plates
contact with our partners and, as
such, are flexible and quick in
Bearings Shaft seals Housings Drives
handling your enquiries and can
Gate valves
Conveyor-type
weighers
Feeding screw
conveyors
Beater sections
Adjusting mechanisms
Bearings
provide you with dependable solutions.
More on this under:
www.bfz-ob.de
Expansion joints
Gear units
Drives
Service Hotline: +49.203.8038-2550
Service Fax: +49.203.8038-612550
Email: spareparts@hitachi-power.com
Coal Firing Systems 23

© Hitachi Power Europe GmbH / 02.2013 / Printed on chlorine-free bleached paper
Hitachi Power Europe GmbH
Schifferstraße 80
47059 Duisburg, Germany
Phone +49.203.8038-0
Fax +49.203.8038-1809
infobox@hitachi-power.com
www.hitachi-power.com