Different Types of Mills

7/27/2019 Different Types of Mills

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Boiler Products

February 2003February 2003


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Boiler ProductsManaging Director: Edward Bysiek

l Air preheaters (Ljungstrom) Designed for either vertical or

horizontal flows Available in a full range of

sizes for gas flows of 20,000 to780,000 lb./hr.

Applications include: electricpower generating plants,

fluidised bed and industrialboilers, flue gas and otherreheating systems

24,00024,000 LjungstrmLjungstrm air and gas heat exchangers air and gas heat exchangers


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Boiler Products

l Industrial and Utility Mills Over 18,000 industrial and

utility type mills in serviceworldwide including bowl mills,

beater wheel mills, ball tubemills, Industrial mills These mills can handle from 15

to 200 tons/hour for boilers upto1,000 MW

Able toAble to handle virtually anyhandle virtually any type of fueltype of fuel


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8

Boiler Products - Locations

30

USAAbilene (K) Concordia (K) Lisle (IL) Wellsville (N Y)

GermanyBammental Stuttgart

J apanKobe

Lead Technology Centre

FranceVlizy Czech

Rep. Brno


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Boiler ProductsMilling Systems

Mechthild AngleysALSTOM Power Boiler GmbH, Stuttgart Tel.: +49 711 917 1441



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l ALSTOM Stuttgart,Germany former EVT

l ALSTOM Windsor, USA former Combustion Engineering

l ALSTOM Velizy, France former Stein Industriel ALSTOM Lisle, USA former Raymond

l ALSTOM Brno, CZ fromer ENS

Coal Mills - Technology places

033 238p


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l Vertical mills or Bowl mills Type SM or HP, RP

l Horizontal mills or Tube mills Type BBD or BBI

l Beater wheel mills, Type N or S

Coal Mills- Type of mills

033 239p


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Bowl Mill SM 19

036 135p_quer


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Vertical Mills, Type SM

Use: Bituminous CoalCapacity: 12 to 105 t/h

Fineness with static classifier 15 % R 90 mFineness with dynamic classifier 8 - 10 % R 90 m

Moisture content of coal up to 30%Hardgrove 45 - 120

Characteristic of the mill

033 240p


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Bowl Mill with Rotary Classifier

036 138b_quer


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Main componentsll BowlBowl

solid cast-iron construction, no vertical shaft bowl wear segments with hard welded overlay

ll Journal Journal with high wear resistent rollers for long service

life roller liners can be rewelded several times bearings dimensioned for long lifetime

(> 100000 h) dip lubrication system for bearing lubrication easy maintenance for the journals by separate

swiveling of each journal

ll GearboxGearbox planetary gearbox which con be removed

separately

Characteristicsof ALSTOM Bowl Mills

036 158p

ll ClassifierClassifier 4 classifier outlets for homogenous

coal-air distribution to the burners

flow optimised classifier design to avoidcoal deposits in the classifierll HousingHousing

optimised aerodynamic design toprevent coal dust deposits

journal cover cast iron construction tohave optimised aerodynamic design

ll Grinding forcesGrinding forces raising of grinding forces is done by

hydraulic cylinders. Hydraulic forces caneasily adjusted to different coals by

setting of hydraulic pressurell MainMain operation featuresoperation features

no metallic contact between bowl androllers

when rollers change profil due to wear,

journals can be adjusted be means of an eccentric disc


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Bowl Mills in Solid edges design

036 167p


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Bowl Mill, view inside the mill


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Swing Outof the Grinding Journal

036 164p

Journal Opening Cover

Grinding Journal

Mill Housing

Hydraulic Cylinder

Foundation Bracket


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Mill-Repowering, 4 x SM 28/17

PS Bergkamen, 750 MW el

036 165p

OLDOLDOLDOLDOLDOLDOLDOLDStatic SeparatorCapacity 77 t/hFineness 20 % R 90 m

Coal RangeHu 26.6 bis 29.6Hg 60 bis 90w < 9a 8

Bowl - 2,670 mmMotor 650 kW

NEWNEWNEWNEWNEWNEWNEWNEWDynamical SeparatorCapacity 105 t/hFineness 10 - 25 % R 90 m

Coal RangeHu 25.0 bis 28.5Hg 45 bis 100w < 12a 8 - 16

Bowl - 2,800 mmMotor 650 + 45 kW


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Anlage/PlantAnlage/PlantAnlage/PlantAnlage/Plant BestelljahrBestelljahrBestelljahrBestelljahr Year of Year of Year of Year of

OrderOrderOrderOrder

DurchsatzDurchsatzDurchsatzDurchsatz Through- Through- Through- Through-

putputputputt/ht/ht/ht/h

Herkunft der KohleHerkunft der KohleHerkunft der KohleHerkunft der KohleOrigin of CoalOrigin of CoalOrigin of CoalOrigin of Coal

Mhlentyp undMhlentyp undMhlentyp undMhlentyp undAnzahl MhlenAnzahl MhlenAnzahl MhlenAnzahl MhlenMill Type andMill Type andMill Type andMill Type and

number of millsnumber of millsnumber of millsnumber of millsHiberna AG, EssenKW Scholven 1966 40 Germany (Ruhr) 8 x SM 20

MAN, AugsburgKW Bremen Hafen 1966 18 Germany 3 x SM 16

Hiberna AG, HerneKW Datteln 1967 16 Germany 3 x SM 16

Hiberna AG, HerneKW Scholven D+E 1968 40 Germany (Ruhr) 8 x SM 20Drrwerke AG, RatingenChem. Hls 1968 22- Germany (Ruhr) 3 x SM 18

Elektrim Warzawa, PolandGorna Odra, Jaworzno,Kozienice

1971 60 Poland 15 x SM 27

Ahlstrm EspooFinnland 1974 18 Import 3 x SM 16

VEBA Kraftwerke RuhrScholven F 1975 60 Germany (Ruhr) 4 x SM 27

Elektrim Warzawa, Poland

Opele, J aworzno 3,Kozienice 1975 60 Poland 31 x SM 27Stadtwerke BremenKW Hafen 1975 32 Import 5 x SM 20

Shell Hamburg 1977 10 Germany (Ruhr) 1 x SM 16

STEAG-VEW, EssenBergkamen 1977 67 Germany (Ruhr) 4 x SM 27

GKM Mannheim AGK 18 1979 40 Germany, (Ruhr, Saar) 4 x SM 20

Stadtwerke ErlangenHKW 3 1979 8,5 Germany 2 x SM 12

EWAG NrnbergHKW Sandreuth 1979 13,6 Germany 6 x SM 14

SaarbergwerkeKW Bexbach 1980 60 Germany (Saar) 4 x SM 27

TWS StuttgartKW Mnster 1980 13,6 Germany, South-Africa 3 x SM 14

Balcke-Drr, HEWKW Hafen 1980 13,6 Import 3 x SM 14

Cockerill for ChinaKW Ping Ding Shan 1980 41 China 10 x SM 22

Waagner Biro, Wien

DK KW Zeltweg1981 18 Import 4 x SM 16

TWS StuttgartKW Mnster 1981 13,6 Germany, South-Africa 3 x SM 14

Schsselmhlen/ReferenzlisteBowl Mills/Reference List

036 155a_quer


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Schsselmhlen/ReferenzlisteBowl Mills/Reference List

036 155b_quer

Anlage/PlantAnlage/PlantAnlage/PlantAnlage/Plant BestelljahrBestelljahrBestelljahrBestelljahr Year of Year of Year of Year of

OrderOrderOrderOrder

DurchsatzDurchsatzDurchsatzDurchsatz Through- Through- Through- Through-

putputputputt/ht/ht/ht/h

Herkuft der KohleHerkuft der KohleHerkuft der KohleHerkuft der KohleOrigin of CoalOrigin of CoalOrigin of CoalOrigin of Coal

Mhlentyp undMhlentyp undMhlentyp undMhlentyp undAnzahl MhlenAnzahl MhlenAnzahl MhlenAnzahl MhlenMill Type andMill Type andMill Type andMill Type and

number of millsnumber of millsnumber of millsnumber of millsSGP, WienKW Drnrohr 1981 40 Import 4 x SM 22

SKP, WienKW Drnrohr 1981 40 Import 4 x SM 20

Waagner-Biro, WienSTEWEAG KW Mellach 1981 32 Import 4 x SM 20

Stadtwerke BraunschweigHKW Mitte 1981 8,5 Germany 4 x SM 12

Waagner-Biro, WienKW Riedersbach 1982 20 Poland 2 x SM 17

SGP, WienKW Naga, Philippinen 1983 16,7 Import 4 x SM 15

EVS, StuttgartKW Heilbronn 1983 60 Germany (Ruhr) 4 x SM 27

RDK Karlsruhe 1985 42Germany (Saar),Germany (Ruhr),

Germany (Aachen)4 x SM 24

TWS, StuttgartKW Mnster 1986 13

Germany (Ruhr)South Africa 3 x SM 17

Elektrim Warzawa, Poland Taiyuan China 1986 45 China 10 x SM 27

Stadtwerke BremenKW Hastedt Bremen 1987 15

Germany (Ruhr)South Africa 3 x SM 17

LCS Gummerbach Tiefstack Hamburg HEW 1988 12,5

Germany (Ruhr)Poland, England 3 x SM 17

GKM MannheimK 19 1989 40 Import 4 x SM 27

OKA, LinzKW Riedersbach 2 1993 18 Poland 2 x SM 19DK, KlagenfurtKW St. Andr 1993 14 Import 3 x SM 17

OKA, LinzKW Timelkam 1993 9,2 Import 3 x SM 14

Ulaan BaatarMongolia 1996 28 Mongolia 16 x SM 19

STEAG-VEWKW Bergkamen 1997 67 Import 4 x SM 28

Waigaoqiao,China 1998 67 China 12 x SM 28/17

ManjungMalaysia 1999 65 Import 21 x SM 28/17


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)* + ,Kohlenmahlanlage mit

=> ? @ Schsselmhle


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Beater Wheel Mills

Mechthild AngleysALSTOM Power Boiler GMBH, Stuttgart Tel.: +49 711 917 1441



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Power Station Schwarze Pumpe

011 283p

0 ,0 m

+ 161 ,5 m


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Pulverized Brown Coal Firing

031 010p

Core air

Upper air

Oil burner

Pulverized coal duct

Pulverized coal duct

Flue gas resuction duct

Raw coal chute

Beater wheel mill

Pulverized coal

Cooling air

Pulverized coal

Intermediate air

Lower air

Ceramic nozzle


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Type N 400.42

ALSTOM Beater Wheel Mill

035 132p

1 Connection for flue gas

resuction duct2 Isolating slide damper for

flue gas resuction duct

3 Mill door

4 Mill housing

5 Beater wheel

6 Classifier

7 Coarse particle return duct8 Double bearing

9 Variable speed gear

10 Drive motor


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Beater Wheel Millwith Pre-Beater Stage

035 001p


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Beater Wheel Mill N 340.43with Beater Wheel Transporter

035 238p_quer


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Beater Wheel Millwith Precrushers

035 243p


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Beater Wheel Millwith Prebeater

035 230p


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Beater Wheel MillMill Door with Prebeater


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Beater Wheel MillBeater Wheel


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The BBD mills


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The BBD system

BBD

The BBD mills

Th BBD ill


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Air and coal circuit

BBD

The BBD mills

Th BBD ill


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Range of BBD mills

BBD mill type 25 36 34 48 38 54 40 60 43 66 47 60 47 72

Diameter mm 2 450 3 350 3 750 3 950 4 250 4 650 4 650Lenght mm 3 740 4 940 5 540 6 140 6 740 6 140 7 340

Motor kW 300 770 1 120 1 530 1 800 2 200 2 400

Base capacity t/h 15 40 58 68 96 102 122

The BBD mills

Th BBD ill


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References

Job Country Boilers Mills

Customer Plant Numb x Capacity total typeBeghin Say Corbehem France 2 x 120 t/h 2 25 36

NALCO Damanjodi India 3 x eq 60 MW 6 34 48BHEL / GEB Sikka India 1 x 120 MW 4 34 48

SHMP / HEPB Ping Ding Shan China 2 x 350 MW 8 34 48ESKOM Arnot RSA 1 x 350 MW 3 40 60

LCS / ESKOM Tutuka RSA 6 x 600 MW 36 40 60HEPC Qi Tai He China 2 x 350 MW 6 40 60SEPC Laicheng China 2 x 300 MW 6 40 60 +

ELSAM Vestkraft Denmark 1 x 400 MW 3 43 66CEPA Sual Philippines 2 x 660 MW 8 43 66

LCS / ESKOM Majuba RSA 6 x 666 MW 30 47 60BHEL / APSEB Vijayawada India 4 x 210 MW 12 47 60

BHEL / DVC Mejia India 3 x 210 MW 9 47 60BHEL / BSEB Tenughat India 2 x 210 MW 6 47 60

BHEL / OPGCL Ib Valley India 2 x 210 MW 6 47 60BHEL / RSEB Kota India 1 x 210 MW 3 47 60

BHEL / APSEB Muddanur India 2 x 210 MW 6 47 60BHEL Unchahar India 2 x 210 MW 6 47 60

ESKOM Matimba RSA 6 x 660 MW 30 47 72NTPC Talcher India 2 x 500 MW 10 47 72

MHI / UPSEB Anpara "b" India 2 x 500 MW 16 47 72BHEL / BSES Dahanu India 2 x 250 MW 6 47 72BHEL / MSEB Chandrapur India 1 x 500 MW 5 47 72BHEL / BSES Vindhyachal India 2 x 500 MW 10 47 72

BHEL / APSEB Kothagudem India 2 x 250 MW 6 47 72BHEL / RSEB Surat Garh India 4 x 250 MW 12 47 72

total:

255

The BBD mills

The BBI mills


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The BBI mills

The BBI mills


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Indirect Firing System

The BBI mills

The BBI mills


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r ec i r c u l at io n w i t h c l as s i f ier

cycloneFEEDING

OUTLET

Raw product

ventfilter

vent fan

stackclassifier

binfeeder

2

1

hot gasgenerator

exhaust fanballmill

1 - C L A S

S I F I C A

T I O N

2 - G R I N

D I N G

3 - D

R Y I N G

+ +

Dry Process

The BBI mills


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Large ball mills

The BBD mills


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Outstanding advantages of the BBD mills

High availability

Low maintenance cost

Constant capacity versus time

Hard or abrasive coals efficiently groundInstantaneous response to load change

Low air to coal ratioWide range of coal possible

Unaffected by foreign material

The BBD mills

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Different Types of Mills

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