Air & Flue Gas Cycle Final

7/25/2019 Air & Flue Gas Cycle Final

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WELCOME TOWELCOME TO

CGPL MUNDRA ,UMPPCGPL MUNDRA ,UMPP

PresentationPresentationOnOn

AIR & FLUE GAS SYSTEMAIR & FLUE GAS SYSTEM



ntroduction

Air and gas flow through the unit is handled by the two(2) forced draft (FD) fans,

two(2) induced draft (ID) fans, and two(2) primary air (PA) fans. wo(2) scanner

cooling air fans and two(2) pul!eri"er seal air booster fans assure that air

pressures are ade#uate to o!ercome resistance in their respecti!e systems.

he air is utili"ed for$

%. &ombustion ' econdary Air and !erfire Air.2. &ooling ' Flame canners (wo Fans).

*. &on!eying and Drying of Pul!eri"ed &oal ' Primary Air.

+. ealing ' Pul!eri"ers and Feeders.(wo eal Air Fans).



Purposes of Air and Flue Gas System

upply of &ombustion econdary Air

upply of &on!eying and drying for Pul!eri"ed &oal

upply of &ooling Air For Flame canners

upply of ealing Air for Pul!eri"ers and Feeders

-tract Flue /as from Furnace and Feed to tac0



ESP

FLUE GAS FROM BOILER

PRIMARY

AIR

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GAS AIR $EA%ER

SE#O!ARY

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$O%&#OL! PRIMARY AIR WI%$ #OAL %O FURA#E

PUL'ERI(ER A)B)#)!)E)F

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&3

4 4

4 4

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5I6-7

5A&8 PA

44

4 44

PA Fan PA Fan

F! Fan F! Fan

I! Fan I! Fan

Flue Gas Pat*

Se+ondary Air Pat*

#old Primary Air Pat*

GA$ GA$

,-. /0. 1,. 1,. /0. ,-.

#old Air $eader

$ot Air $eader

4

Fd Fan 5lade Pitch shoulde be Ma2imun

Fd Fan 5lade Pitch shoulde be Minimun

4

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Fd Fan 5lade Pitch shoulde be Ma2imun

Fd Fan 5lade Pitch shoulde be Minimun

$ot Primary Air Pat*

A A

B B

Air 9 Flue /as

Flow Diagram



#OL! AIR

$EA!ER

$O% AIR

$EA!ER

%O PUL'ERI(ER A %O PUL'ERI(ER B %O PUL'ERI(ER # %O PUL'ERI(ER ! %O PUL'ERI(ER E %O PUL'ERI(ER F

1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6

!YA'AE

FIL%ER SEALIG AIR FA

B B

A A

1

2

3

4

5

6

PUL'ERI(ER SEALIG AIR PIPE

$O% P3A3 S$U%% OFF !AMPER SEALIG

AIR PIPE

#OL! PRIMARY AIR !U#%

$O% PRIMARY AIR !U#%

#OAL FEE!ER SEALIG AIR PIPE

PUL'ERI(ER #OAL PIPIG PURGE

AIR PIPE



#OAL #YLO

M

E4$

E4$

E4$

PUL'ERI(ER LUBE OIL SYS%EM

FROM PUL'ERI(ER SEALIG AIRSYS%EM

FROM !ELUGE

WA%ER SYS%EM

FROM S%EAM IER%IG SYS%EM

FROM #OL! PRIMARY AIR SYS%EM

FROM $O% PRIMARY

AIR SYS%EM

FROM PUL'ERI(ER

SEALIG AIR SYS%EM

FROM PUL'ERI(ER

!IS#$ARGE PURGE

AIR SYS%EM)

#OAL FEE!ER#OAL FEE!ER SEALIG

SYS%EM

1

2

3

4

5

6

PUL'ERI(ER

%O BOILER#ORER ,

%O BOILER

#ORER -

%O BOILER

#ORER 5

%O BOILER

#ORER /



canner cooling air fan

FIL%ER

FIL%ER

SU#%IO FROMA%MOSP$ERE

FOR S#AER

#OOLIG



Air and Flue /as 4o!ie



THANK YOU



Function Of FD Fan

unction Of FD Fan

Forced Draft Fans form part of the 5oiler Draft ystem. he Forced Draft Fan drawForced Draft Fans form part of the 5oiler Draft ystem. he Forced Draft Fan draw in air from the atmosphere and pressuri"es it to enter the furnace to supply the correctin air from the atmosphere and pressuri"es it to enter the furnace to supply the correctamount of air needed for proper &ombustion in the furnace.amount of air needed for proper &ombustion in the furnace.

he secondary air system pro!ides air for combustion to the wind boes which arehe secondary air system pro!ides air for combustion to the wind boes which are

supplied by two (2) single stage, aial flow Forced Draft fans. he secondary air fromsupplied by two (2) single stage, aial flow Forced Draft fans. he secondary air from

Forced Draft fan is raised to a higher temperature by the flue gases in the regenerati!eForced Draft fan is raised to a higher temperature by the flue gases in the regenerati!e

air preheater. From the regenerati!e air preheater, the air is led to the wind boesair preheater. From the regenerati!e air preheater, the air is led to the wind boesthrough the hot secondary air duct. In the wind boes, the air is distributed by indi!idualthrough the hot secondary air duct. In the wind boes, the air is distributed by indi!idual

compartment dampers. In addition the hot secondary air ser!es as the source for thecompartment dampers. In addition the hot secondary air ser!es as the source for the

close coupled o!erfire air.close coupled o!erfire air.

&ontrol of the boiler air flow is by the Forced Draft fan inlet !anes, while the distribution&ontrol of the boiler air flow is by the Forced Draft fan inlet !anes, while the distribution

of secondary air to the indi!idual wind bo compartments is controlled by the secondaryof secondary air to the indi!idual wind bo compartments is controlled by the secondary

air dampers in the wind bo compartments. hese dampers are positioned by a sub loopair dampers in the wind bo compartments. hese dampers are positioned by a sub loop

control system which is associated with the combustion control system.control system which is associated with the combustion control system.



Specification of Forced Draft Fan

pecification of Forced Draft Fan

:o. of Fans ;sed:o. of Fans ;sed $$ wo ( 2<=>?)wo ( 2<=>?)

ype of Fanype of Fan $$ FDF 2=@%2.2'%FDF 2=@%2.2'%

Fan 4anufacturer Fan 4anufacturer $$ uewon Poongryu0 4achinery &o. 6tduewon Poongryu0 4achinery &o. 6td

ype of fanype of fan $$ Aial ( ingle stage ) Aial ( ingle stage )

:o. of 5lades:o. of 5lades $$ %1%1

/ap between end 5lade and &asing/ap between end 5lade and &asing $$ 2.= mm2.= mm

Air Flow &ontrol 4ethod Air Flow &ontrol 4ethod $$ ariable Pitch &ontrol ('*= to B%= deg.)ariable Pitch &ontrol ('*= to B%= deg.)

4ethod f 5earing 6ubrication4ethod f 5earing 6ubrication $$ Pressure oilPressure oil4ethod f 5earing &ooling4ethod f 5earing &ooling $$ Cater'il &ooler Cater'il &ooler

&apacity 54&7 (&apacity 54&7 (㎥㎥ @min )@min ) $$ %=%E=%=%E=

otal Pressure 7ise 54&7, mm32otal Pressure 7ise 54&7, mm32 $$ *2E*2E

Dri!en peedDri!en peed $$ >>

4otor 4anufacturer 4otor 4anufacturer $$ 3yundai (33I)3yundai (33I)

ype of 4otor ype of 4otor $$ #uirrel &age Induction#uirrel &age Induction

7ating, 8C7ating, 8C $$ %E>>%E>>

7ated oltage, 7ated oltage, $$ 11>>11>>

Full 6oad &urrent, AFull 6oad &urrent, A $$ %E*.%E*.











Specification of nduced Draft Fan

pecification of nduced Draft Fan


ype of Fanype of Fan $$ IDF *2@%'%IDF *2@%'%


ype of fanype of fan $$ Aial ( ingle stage ) Aial ( ingle stage )

:o. of 5lades:o. of 5lades $$ %G%G

/ap between end 5lade and &asing/ap between end 5lade and &asing $$ *.G mm*.G mm

Air Flow &ontrol 4ethod Air Flow &ontrol 4ethod $$ ariable Pitch &ontrol ( '+> to %= deg. )ariable Pitch &ontrol ( '+> to %= deg. )

4ethod f 5earing 6ubrication4ethod f 5earing 6ubrication

$$

Pressure oilPressure oil

4ethod f 5earing &ooling4ethod f 5earing &ooling $$ Cater'il &ooler Cater'il &ooler

&apacity 54&7 (&apacity 54&7 (㎥㎥ @min )@min ) $$ *%E+G*%E+G

otal Pressure 7ise 54&7, mm32otal Pressure 7ise 54&7, mm32 $$ +1++1+

Dri!en peedDri!en peed $$ >>


ype of 4otor ype of 4otor $ #uirrel &age Induction$ #uirrel &age Induction

7ating, 8C7ating, 8C $$ +>>+>>

7ated oltage, 7ated oltage, $$ %%>>>%%>>>

Full 6oad &urrent, AFull 6oad &urrent, A $$ *>>.+*>>.+







Function Of APH

unction Of APH

6Hungstrom ype /as Air Pre'3eater form part of the boiler draft system. he /as Air Pre'6Hungstrom ype /as Air Pre'3eater form part of the boiler draft system. he /as Air Pre'3eater is a rotating heat echanger, etracting waste heat from the flue gases suc0ed out3eater is a rotating heat echanger, etracting waste heat from the flue gases suc0ed outby the induced draft fans and transfers this heat to incoming primary and secondary air byby the induced draft fans and transfers this heat to incoming primary and secondary air bymeans of continuously rotating heat transfer elements of specially formed metal plates.means of continuously rotating heat transfer elements of specially formed metal plates.he /A3 furnished for this installation is designed for !ertical counter'flow of air and fluehe /A3 furnished for this installation is designed for !ertical counter'flow of air and fluegases.gases.

As the rotor slowly re!ol!es the mass of elements alternately through the gas and air As the rotor slowly re!ol!es the mass of elements alternately through the gas and air

passages, heat is absorbed by the element surfaces passing through the hot gaspassages, heat is absorbed by the element surfaces passing through the hot gas

stream then as these same surfaces are carried through the air stream, they releasestream then as these same surfaces are carried through the air stream, they release

the stored up heat thus greatly increasing the temperature of the incoming combustionthe stored up heat thus greatly increasing the temperature of the incoming combustion

or process air.or process air.



General Description of APH

eneral Description of APH



Specification of APH

pecification of APH

AP$ 6AP$ 6

:o. of AP3 ;sed:o. of AP3 ;sed $$ wowo

4anufacturer 4anufacturer $$ DA:DA:

ype of AP3ype of AP3 $$ 7otary 7egenerati!e J**'I'2==> (7)K7otary 7egenerati!e J**'I'2==> (7)K

3eating surface /as side3eating surface /as side 4 4/A3/A3 $$ E++2%E++2% ㎡㎡ ( =% ? )( =% ? )

3eating surface econdary side3eating surface econdary side $$ =2G+=2G+ ㎡㎡ ( *1 ? )( *1 ? )

3eating surface Primary side3eating surface Primary side $$ %G**1%G**1 ㎡㎡ ( %2 ? )( %2 ? )

7otor rotation speed, 7P47otor rotation speed, 7P4 $$ Appro. %.> Appro. %.>

&asing Design pressure&asing Design pressure $$ >.>E bar >.>E bar

&asing design temp.&asing design temp. $$ +=> deg. &+=> deg. &

otal height of heating elementotal height of heating element $$ 2.== meters2.== meters

Pressure drop on gas side at 54&7Pressure drop on gas side at 54&7 $$ %2= 44C&%2= 44C&

Air lea0age from air to gas at 54&7 Air lea0age from air to gas at 54&7 $$ E.E ?E.E ?



Motor 6Motor 6

Dri!eDri!e $$ -lectric 4otor as duty and air motor with o!er'-lectric 4otor as duty and air motor with o!er'running clutch as emergency userunning clutch as emergency use

ype of -lectric 4otor ype of -lectric 4otor $$ #uirrel &age Induction#uirrel &age Induction

ype of coolingype of cooling $$ otally enclose fan cooledotally enclose fan cooled

7ating, 8C7ating, 8C $$ *>*>

:o. of poles:o. of poles $$ ++

7ated oltage, 7ated oltage, $$ +%=+%=

7ated , rpm7ated , rpm $$ %=>>%=>>

/ear 7eduction/ear 7eduction $$ %2>@% ( ne lub oil pump for gear bo)%2>@% ( ne lub oil pump for gear bo)

InsulationInsulation $$ 5 class5 class

Accessory Accessory $$ 3andle for manual operation3andle for manual operation



Air Motor 6Air Motor 6

:umber per AP3:umber per AP3 $$ nene

ypeype $$ D 2> L %%G L >=D 2> L %%G L >=

Air Pressure Air Pressure $$ =.> bar /=.> bar /

Air consumption Air consumption $$ %G.* : m%G.* : m**

@min.@min.

tarting or#uetarting or#ue $$ +>.*+ 0g.m (minimum)+>.*+ 0g.m (minimum)

Cor0ing pointCor0ing point $$ 2>>'*>> rpm2>>'*>> rpm

Accessory Accessory $$ ilencer ilencer



Lu7 Oil +ir+ulatin8 unit 9 For Guide 7earin8 : 6Lu7 Oil +ir+ulatin8 unit 9 For Guide 7earin8 : 6

%. il Pump $%. il Pump $

:umber of pump per /A3:umber of pump per /A3 $$ nene

Design pressureDesign pressure $$ =.> bar =.> bar

Discharge #uantityDischarge #uantity $$ %2 6P4 at =.> bar %2 6P4 at =.> bar

7elief !al!e pressure setting7elief !al!e pressure setting $$ =.= bar =.= bar

2. 4otor $2. 4otor $

:umber of motor :umber of motor $$ nene

ypeype $$ otal enclosed Fan cooledotal enclosed Fan cooled

7ated Power 7ated Power $$ >.E= 0w>.E= 0w

-lectric source-lectric source $$ +%=!, * phase, => 3M+%=!, * phase, => 3M

:o. of poles:o. of poles $$ 11

7ated speed7ated speed $$ %>>> rpm%>>> rpm

InsulationInsulation $$ 5 &lass5 &lass



*. il &ooler $*. il &ooler $

:umber of cooler :umber of cooler $$ nene

Design PressureDesign Pressure $$ =.> bar =.> bar

&ooling water temperature&ooling water temperature $$ *= deg. &*= deg. &

&ooling water consumption&ooling water consumption $$ * tons@hr * tons@hr

+. Filter $+. Filter $

:umber of Filters:umber of Filters $$ nene

ypeype $$ DupleDuple

Design #uantityDesign #uantity $$ %2 6P4 at =.> bar %2 6P4 at =.> bar

Filtration rangeFiltration range $$ => microns=> microns

Filtration areaFiltration area $$ 2>> m2>> m22



Fire Detecting de!ice $Fire Detecting de!ice $

%. Fire etinguishing de!ice$%. Fire etinguishing de!ice$

:umber :umber $$ nene

Cater consumptionCater consumption $$ +>> ton@hr +>> ton@hr

Cater pressureCater pressure $$ =.> bar =.> bar

Cater temperatureCater temperature $$ *= deg. &*= deg. &

6ocation6ocation $$ 3ot end gas inlet duct3ot end gas inlet duct

2. Fire detector $2. Fire detector $

Probe typeProbe type $$ N-O thermocoupleN-O thermocouple

:o. of probe per /A3:o. of probe per /A3 $$ Fi!eFi!e

6ocation6ocation $$ &old end gas outlet duct&old end gas outlet duct



Water Was*in8 de;i+e 6Water Was*in8 de;i+e 6

:umber per /A3:umber per /A3 $$ nene

ypeype $$ tationary 4ulti no""letationary 4ulti no""le

Cater consumptionCater consumption $$ *>> ton@hr *>> ton@hr

Cater pressureCater pressure $$ =.> bar =.> bar

Cater temperatureCater temperature $$ 2> to 1> deg. &2> to 1> deg. &

o rotation de;i+e 6o rotation de;i+e 6

his Detector is designed to monitor electrically whether the rotor of /A3 is normally rotating andhis Detector is designed to monitor electrically whether the rotor of /A3 is normally rotating and

to send out the signal when the rotation is abnormal.to send out the signal when the rotation is abnormal.

:umber per /A3:umber per /A3 $$ wowoDetector typeDetector type $$ -2-'%>D%'4%-2-'%>D%'4%

:ormal speed:ormal speed $$ %.> rpm@>.% 7P4 (>.1 sec )%.> rpm@>.% 7P4 (>.1 sec )

Abnormal speed Abnormal speed $$ >.+ 7P4 ( *> sec )>.+ 7P4 ( *> sec )







Function Of ESP

unction Of ESP

An ele+trostati+ pre+ipitator 9ESP: or electrostatic air cleaner is a particulate

collection de!ice that remo!es particles from a flowing gas (such as air) using the force of an induced electrostatic charge. -lectrostatic precipitators are

highly efficient filtration de!ices that minimally Impede the flow of gases through

the de!ice, and can easily remo!e fine particulate matter such as dust and

smo0e from the air stream.

he most basic precipitator contains a row of thin !ertical wires, and followed by A stac0 of large flat metal plates oriented !ertically, with the plates typically

spaced about % cm to %G cm apart, depending on the application. he air or gas

stream flows hori"ontally through the spaces between the wires, and then

passes through the stac0 of plates.



Specification

pecification

of

f

ESP

SP

4a0e $ 3alla -nergy 9 -n!ironment:o of &ollecting electrode $ +<1<+<2

:o of -mitting electrode $ +G<1<+<2

ype $ Dry ype

:o of hopper $ 1<+<2

:o of field $ 1

:o of pass $ 2(A 9 5)ransformer rating $ 1.1@>.+%= 8!

7ectifier $+%= !(A&)@18!(D&)





Function Of Ci!ne"

unction Of Ci!ne"

A +*imney is a structure for !enting hot flue gases or smo0e from a boiler furnace to

the outside atmosphere. &himneys are typically !ertical, or as near as possible to !ertical, to ensure that the gases flow smoothly, drawing air into the combustion in

what is 0nown as the stac0, or chimney, effect. he space inside a chimney is called

a flue. &himneys may be found in buildings, steam locomoti!es and ships. he term

funnel is generally used for ships chimneys and sometimes to refer to locomoti!e

chimneys.&himneys are tall to increase their draw of air for combustion and to

disperse pollutants in the flue gases o!er a greater area so as to reduce thepollutant concentrations in compliance with regulatory or other limits.



#*imney I #*imney II

9%WO FLUES: 9%$REE FLUES:

%. Cind shield outer Diameter '2.>> 66 2G. m *%. m

2. Cind shield outer Diameter B21.=.>> 66 2%.G m 2*.G m

*. Call hic0ness '2.>> 66 >> mm >> mm+. 3eight of wind shield m 2E%.= m 2E%.= m

=. otal height of chimney (including flues) 2E= mm 2E= mm

1. Flue &an Diameter mm E=>> mm E=>> mm

Specification

pecification

of

f

Ci!ne"

i!ne"







Function Of PA Fan

unction Of PA Fan

he Primary Air Fan draws in air from the atmosphere and pressuri"es it to be deli!eredhe Primary Air Fan draws in air from the atmosphere and pressuri"es it to be deli!eredto the draft system in two portions. ne portion passes through the /A3 wherein it isto the draft system in two portions. ne portion passes through the /A3 wherein it isheated to enter the pul!eri"er as hot primary air and thence to the furnace. he otherheated to enter the pul!eri"er as hot primary air and thence to the furnace. he othercold portion which does not pass through the /A3 is used as cold air for the pul!eri"ercold portion which does not pass through the /A3 is used as cold air for the pul!eri"ersystem, as sealing air for the coal feeder pipe and as purge air for the pul!eri"er coalsystem, as sealing air for the coal feeder pipe and as purge air for the pul!eri"er coalpiping.piping.

he Primary Air ystem pro!ides air to the pul!eri"ers for drying the pul!eri"ed coal andhe Primary Air ystem pro!ides air to the pul!eri"ers for drying the pul!eri"ed coal and

for con!eying it to the wind bo coal no""les. wo(2) aial flow, two'stage single speedfor con!eying it to the wind bo coal no""les. wo(2) aial flow, two'stage single speedPrimary Air fans are pro!ided to maintain the re#uired air flow for proper coal dryingPrimary Air fans are pro!ided to maintain the re#uired air flow for proper coal dryingconditions in the pul!eri"ers and proper !elocities in the pul!eri"ed coal piping to theconditions in the pul!eri"ers and proper !elocities in the pul!eri"ed coal piping to thewind bo no""les. Primary Air pressure is controlled by the Primary Air fan inlet !anes.wind bo no""les. Primary Air pressure is controlled by the Primary Air fan inlet !anes.

A portion of the primary air from Primary Air fan is directed through an associated primary A portion of the primary air from Primary Air fan is directed through an associated primaryside of the 6Hungstrom air heater. 3ere the air is heated by the hot heat transfer elementsside of the 6Hungstrom air heater. 3ere the air is heated by the hot heat transfer elementsbefore it is directed to the hot primary air duct leading to the each of the si pul!eri"ersbefore it is directed to the hot primary air duct leading to the each of the si pul!eri"ers

located at the front of the unit. &old primary air duct leads directly from the primary air fanlocated at the front of the unit. &old primary air duct leads directly from the primary air fanand discharged to the pul!eri"ersQ inlet duct. he air inlet duct at each pul!eri"er isand discharged to the pul!eri"ersQ inlet duct. he air inlet duct at each pul!eri"er isconnected with both the hot and cold primary air ducts. emperature control isconnected with both the hot and cold primary air ducts. emperature control isaccomplished by a set of control dampers in both the hot air and cold air connection.accomplished by a set of control dampers in both the hot air and cold air connection.



Specification of Pri!ar" Air Fan

pecification of Pri!ar" Air Fan


ype of Fanype of Fan $$ IDF %G.+@%>.1'2IDF %G.+@%>.1'2


ype of fanype of fan $$ Aial ( wo stage ) Aial ( wo stage )

:o. of 5lades:o. of 5lades $$ %1%1

/ap between end 5lade and &asing/ap between end 5lade and &asing $$ %.G mm%.G mm

Air Flow &ontrol 4ethod Air Flow &ontrol 4ethod $$ ariable Pitch &ontrol ('*> to B%E deg. )ariable Pitch &ontrol ('*> to B%E deg. )

4ethod f 5earing 6ubrication4ethod f 5earing 6ubrication $$ Pressure oilPressure oil

4ethod f 5earing &ooling4ethod f 5earing &ooling $$ Cater'il &ooler Cater'il &ooler

&apacity 54&7 (&apacity 54&7 (㎥㎥ @min )@min ) $$ 1>GE1>GE

otal Pressure 7ise 54&7, mm32otal Pressure 7ise 54&7, mm32 $$ >>>>

Dri!en peedDri!en peed $$ %+>%+>


ype of 4otor ype of 4otor $$ #uirrel &age Induction#uirrel &age Induction7ating, 8C7ating, 8C $$ 2%>>2%>>

7ated oltage, 7ated oltage, $$ 11>>11>>

Full 6oad &urrent, AFull 6oad &urrent, A $$ 2%2.22%2.2





















Function Of #SA Fan

unction Of #SA Fan

4ill eal Air for the pul!eri"ers is supplied by two 4ill eal Air fans, in parallel. ne eal4ill eal Air for the pul!eri"ers is supplied by two 4ill eal Air fans, in parallel. ne eal

Air fan is used during operation and the other fan ser!es as a bac0'up. Indi!idual shut'off Air fan is used during operation and the other fan ser!es as a bac0'up. Indi!idual shut'off

dampers and !al!es are pro!ided at the eal Air connections from the eal Air duct atdampers and !al!es are pro!ided at the eal Air connections from the eal Air duct at

each pul!eri"er and feeder to permit isolation of an indi!idual pul!eri"er and Feeder foreach pul!eri"er and feeder to permit isolation of an indi!idual pul!eri"er and Feeder for

maintenance.maintenance.

eal Air for the feeders is supplied from the Primary Air system. A mechanical filtereal Air for the feeders is supplied from the Primary Air system. A mechanical filter

upstream of the eal Air fans is used to remo!e dust and impurities from the atmosphericupstream of the eal Air fans is used to remo!e dust and impurities from the atmosphericair supply before its introduction into the pul!eri"ers and feeders.air supply before its introduction into the pul!eri"ers and feeders.







Function Of Pul$eri%er

unction Of Pul$eri%er

&oal Pul!erisers grind the coal to a !ery fine powder to ma0e it burn easily.&oal Pul!erisers grind the coal to a !ery fine powder to ma0e it burn easily.

Pul!erisers ha!e steel rollers or steel balls which crush the coal betweenPul!erisers ha!e steel rollers or steel balls which crush the coal between

them into a fine powder. his powder is easy to burn. &oal containsthem into a fine powder. his powder is easy to burn. &oal contains

moisture. 3ot air form the Primary Air Fans dry the coal in the pul!erisers.moisture. 3ot air form the Primary Air Fans dry the coal in the pul!erisers.

his ma0es the burning easy and efficient. his air also carries the dry coalhis ma0es the burning easy and efficient. his air also carries the dry coal

powder from the pul!erisers to the burners in the boiler furnace.In thepowder from the pul!erisers to the burners in the boiler furnace.In the

burners the coal powder is mied with the re#uired amount of &ombustionburners the coal powder is mied with the re#uired amount of &ombustion

air and burned in the furnace.air and burned in the furnace.



Specification of Pul$eri%er

pecification of Pul$eri%er

4a0e $ DA:

ype $ 3P %%>*

:o. of rollers $ >*Diameter of 5owl $ %%> inch

ype of feeder $ gra!imetric

4aterial of roller $ :i hard

For Hournal lubrication $ oil' I1G>, A/4A'G-P

Ceight of Hournal spring assembly $ *.E 4

Ceight of Hournal assembly $ .2> 4Ceight of rolls and shaft assembly $ =.G> 4

Ceight of bowl hub and bowl assembly $ %E.G 4

Gear 7o2 spe+ifi+ations6

4a0e $ 3R;:/ype $ planetary type.

Power $ 1> 8C

I@P speed $ %>>> rpm

@P speed $ *= rpm

/ear ratio $ 2G.=E%

4a0e $ DA:

ype $ 3P %%>*

:o. of rollers $ >*Diameter of 5owl $ %%> inch

ype of feeder $ gra!imetric

4aterial of roller $ :i hard

For Hournal lubrication $ oil' I1G>, A/4A'G-P

Ceight of Hournal spring assembly $ *.E 4

Ceight of Hournal assembly $ .2> 4Ceight of rolls and shaft assembly $ =.G> 4

Ceight of bowl hub and bowl assembly $ %E.G 4

Gear 7o2 spe+ifi+ations6

4a0e $ 3R;:/ype $ planetary type.

Power $ 1> 8C

I@P speed $ %>>> rpm

@P speed $ *= rpm

/ear ratio $ 2G.=E%



Gear 7o2 lu7ri+ation6

6ubricant $ oil

iscosity $ I/ *2>

il #uantity $ %+>> liter.

il pressure $ %'2 bar il re#uirement $ 2*> 6P4

il temperature $ S =>>&.

ype of lubrication $ combination of oil bath and spray.

Ceight of gear bo $ %E.> 4

Spe+ifi+ation of ele+tri+al motor6

4a0e $ 3R;:/, 2>3F&>>'A'*>=F

Phase $ *T, Induction motor

Power $ 1> 8C

oltage $ 1.1 8

peed $ EG rpmLu7ri+ant for t*e motor6

Dri!e end :on'dri!e end

5earing $ slee!e slee!e

6ubricant $ oil (I / +1) il (I / +1)

Uuantity of oil $ E.= 6iter. E.= 6iter.







Function Of Scanner Coolin& Air fan

unction Of Scanner Coolin& Air fan

Fan

an

&ooling air for the scanners is pro!ided by two canner Air fans in parallel, one&ooling air for the scanners is pro!ided by two canner Air fans in parallel, one

ser!ing as a bac0'up. Air to the canner fans is ta0en from atmosphere. A filter isser!ing as a bac0'up. Air to the canner fans is ta0en from atmosphere. A filter is

pro!ided in the canner fan supply duct to ensure clean air to the canners. hepro!ided in the canner fan supply duct to ensure clean air to the canners. he

canner fans boost air pressure to a le!el abo!e the pressure eisting at thecanner fans boost air pressure to a le!el abo!e the pressure eisting at the

canners.canners.

pecification of Scanner Coolin& Air



Specification of Scanner Coolin& Air

Fan

an

:o. of Fan ;sed:o. of Fan ;sed $$ wowo

4anufacturer 4anufacturer $$ uewon Poongryu0 4achinery &o. 6td.uewon Poongryu0 4achinery &o. 6td.

ypeype $$ &entrifugal&entrifugal

4ethod of 5earing 6ubrication4ethod of 5earing 6ubrication $$ /rease/rease

4ethod of 5earing &ooling4ethod of 5earing &ooling $$ :atural:atural

!ri;e Motor <A 9 A# Motor :!ri;e Motor <A 9 A# Motor :

:o. Installed, set:o. Installed, set $$ nene

manufacturer manufacturer $$ 3yundai (33I)3yundai (33I)

ype of -lectric 4otor ype of -lectric 4otor $$

7ating, 8C7ating, 8C $$ E.=E.=

7ated oltage, 7ated oltage, $$ +%=+%=

7ated ,7P47ated ,7P4 $$ %+G>%+G>

Full 6oad &urrent, AFull 6oad &urrent, A $$

!ri;e Motor <B 9 !# Motor :!ri;e Motor <B 9 !# Motor :

:o. Installed, set:o. Installed, set $$ nene

4anufacturer 4anufacturer $$ /-/-

ypeype $$ &D2%%>A&D2%%>A

7ating, 8C7ating, 8C $$ E.=E.=

7ated oltage, 7ated oltage, $$ 22>22>

7ated, 7P47ated, 7P4 $$ 2%>2%>

Full 6oad &urrent, AFull 6oad &urrent, A $$ +>+>

Documents

Air & Flue Gas Cycle Final