tugas khusus Perhitungan Neraca Massa Rawmill

data yang diambil pada tanggal 15 Februari 2016

rawmix copperslag silica sand

RAW

hot gas from pre dust loss A. PERHITUNAN !"#P"$I$I A$ PANA$ #A$U! RA% RA% #I&& komposisi batu bara masuk rotary kiln

233 233!!

analisa komposisi batu bara dari lab "aminan mutu komponen # massa $ %!&' (2 3%3  )2 !' *2 -

&+!, !&+

(2 *

&+3&

ash

&!./

0otal

&!!

 perhitungan massa 1 mol batubara komponen

# massa

massa kg

4Mkg5kgmol

molkmol5h

$

%!&'

&&/',2+

&2

'+,%22%

(2  )2

3%3 !'

.22,' 2!'+

2 2.

,&&2,% +,.'2.%+&,3

*2 (2 *

&+!, !&+ &+3&

3'+!32 3'/& ,!3323

ash 0otal

&!./ &!!

2%3!3. 6 233!!

32 &2,!+2% 32 &23+.&2% &. 22,!/.3333333 &+,2/3%,3&%,.

asumsi pembakaran batu bara sempurna 7 artinya kon8ersi reaksinya &!!# reaksi pembakaran batu bara Reaksi I $

9

*2 $*2 yang terbentuk:

$*2 mol $*2

4M $ :

,, &2

:

,2.+.''

*2 yang dibutuhkan:

4M *2 4M $

:

32

:

&2 3&&.,+2

Reaksi II -

9

*2 -*2 yang terbentuk:

-*2 4M -*2 4M -

: : *2 yang dibutuhkan:

/, 32 +'22 4M *2 4M -

:

32 32 3'/&

: Reaksi III (2

9

&52 *2 (2* yang terbentuk:

(2* 4M (2* 4M (2

: : *2 yang dibutuhkan:

0otal *2 yang diperlukan untuk bereaksi:

*2 dalam batubara: kebutuhan *2 teoritis: : :

&. 2 +,!2,& 4M *2 4M (2

:

32 2

:

/%+''2 *2 dari reaksi &9 3&&.,+2 3+.!,2%

: : 3'+!32 kg 0otal *2 yang diperlukan6*2 dalam b 3+.!,2% 6 33.33'3 kg

A-;M-I <=4;0;(A) ;>ARA ?A)@ >I@;)A
3+2&+323 kg &!! x kebutuhan *2 s 2& &!! x 2&

kebutuhan udara sesungguhnya: : :  )2 dari udara: : :  )2 total

&++22%3,+/&'!,. kg +' x kebutuhan *2 sesungguhnya 2& +' x 3+2&+323 2&

&,!!!.!2,/&'!,. kg

: : :

)2 dari udara 9 )2 dari batubara &,!!!.!2,/&'!,. 9 &,!2&++2,/&'!,. kg

*2 sisa pembakaran:

2!'+

kebutuhan *2 sesungguhnya6kebutuhan *2 teoritis : 3+2&+323 6 : 33.33'3 kg


$*2

#a((a)*g+

,#)*g-*gm'l+

*m'l

 m'l /.522 &/%./2.,+&3, 32. +,%'3++,&2,&

,2.+.''

,,

&,!2&++2,/2

2.

(2*

+,!2,&

&.

11.25

/'''3%/2%%/

-*2 *2

+'22 33.33'3

/, 32

1.2 105.0/

!!2&!%3/3.. &+''%3&2/.

0otal

&'3'/&+3+/2

%.+%,/.'

&!!

 )2

'+,%22 &/%./2.,+&3, ,3.2+3, +,%'3++,&2,& ,&&2,% /'''3%/2%%/ &23+ &!%+3!' %.+%,/.'

!!2&!%3/3.. &+''%3&2/. &!!

kiln feed hot gas ILL

 

kiln feed 4L=)>I)@ -IL*

eaer 

ton5h kg5h

komposisi ash batu bara komponen # massa massakg -i*2 2!'2 %2'3%%,'/

# mol %%'2233'3/'3 23%''!2//%%/ !,2'+/++./&

Al2*3

&&,&

2..+&/3%.

Ce2*3

%2.

&33/!,!/,

$a* Mg*

%3,/ 2%.

&3%2+,&&,. /%2.3.!,

-*3

3.2

'///!%&/

impuritas 0otal

2%3

/,!&./&,

&!!

2%3!3.

+&&'.&'/%/+ !!+&!3&!/,+ &2.%.!&%,/++ 2!%/22% &!!

 4erat $

BR=

x

&&/',2+

kg x 4erat $ x

&&/',2+

kg

x 4erat x

3'/&

kg x 4erat x

3'/&

kg

x 4erat (2

4M

x

.22,'

kg x 4erat (2 x

&!! /! &!2 &%'/ .,

x !7% .22,' x !7%

&.

kg *2 dari reaksi 2 9 *2 dari reaksi 3 9 3'/& 9 kg  

atubara 3'+!32

/%+''2

#r

&!! /! &!2 &%'/ ., &.

 

esungguhnya 3+2&+323

33.33'3

material terkalsinasi =A0=R 

hot gas dust loss Lan"utan <*MB*-I-I @A- BA)A- MA-;< RAW MILL 8olume gas panas masuk  raw mill  : mol udara masuk raw mill: n: massa 4M BD: nR0

B: B: R:

n:

BD R0

0:

:

!7!!.3..atm x &2!!!!! m35h

&2!!!!!

!7!.2!/ m3atm5kgmol< x /%%7&% <  : !'mp'nen

&.+2,+.'33&3& kmol5h  m'l

m'l )*m'l+

,# )*g-*gm'l+

ma((a )*g-4+

$*2

&/%./

3&!%+

,,!!!

&3//%2'

 )2

+,%',

&3'/+%

2.!!!

3'&!'!.

(2* -*2

/''' !!2&

&3&!/ !!3'

&.!!! /,!!!

23%'&& 2%23

*2 0otal

&.!! &!!!!!

33+! &.+2,.

32!!!

&!+.2+ %/23/'+

,. PERHITUNAN NERAA #A$$A RAW MILL

>ata diketahui E umpan masuk raw mill:

+&3 ton5h +&3!!! ton5h

: dust loss masuk raw mill dari suspension preheater :
/2/ ton5h :

: &!# x kiln feed &!# x

:

/2/!!

La"u alir massa raw material masuk raw mill Raw material masuk raw mill #aterial Lime stone $lay

ma((a )*g-4+ %...2! &&%3.!

-ilica sand

!

Iron sand 0otal

.3!! +&2%!!


&ime $t'ne

lay

$ilia (and

Ir'n (and

.'!/#

3!#

!#

&&!'#

-i*2 Al2*3 Ce2*3 Mg$*3

&+'# &&%# !%2# !%/#

3!,/# .'/# ,,3# &&&%#

!# !# !# !#

,,/3# %.'# 23.%# '.%#

(2*

/'2#

&%!!#

!#

,/'#

T'tal

100.00

100.00

0.00

100.00


&ime $t'ne

#aterial #a(u* Ra7 #ill lay $ilia (and

ma((a )*g-4+ %2,,!3!'2 &!%3'.+. /++&,3 3!/&./, 32'+3'2

ma((a )*g-4+ 3,/&, 3%&,,+,. &!33.!,. %&&&33, &2./,.+

(2*

,!+,/3,,

T'tal

533320

$a$*3 -i*2 Al2*3 Ce2*3 Mg$*3

! ! ! ! !

ma((a )*g-4+ '2!,+ 3+!,2' ,...+ &'+'%% .&+%%

&+3!+

!

3.'2+

11530

0

300

La"u alir massa raw material  masuk raw mill  !'mp'nen $a$*3 -i*2 Al2*3 Ce2*3 Mg$*3

(2*

ma((a)*g-4+ m'l)*m'l-4+ %%''3+%/2 %%''3+%/2 ,'3..'&/ .23&,./ &+%'.3,. &+2%32.23%2', &!&%2+,. /3/&3+!'2+32 &/'+'.&2 2!2&,!/&'!,+/

%.,,2/&,

Ir'n $and

32,/.&&......'

ma((a )*g-4+

T'tal

12500 1010.62260/1

La"u alir massa gas panas masuk raw mill  !'mp'nen $*2  )2 (2* -*2

*2 T'tal

ma((a)*g-4+ m'l )*m'l-4+ &3//%3 3&!%+ 3'&!'& &3'/+% 23%'& &3&!/ 2%2 !!3'

&!+.3 562.0

33+! 13.23/11

&a8u alir ma((a dust lost  dari (u(pen(i'n pre4eater ma(u* raw mill 
 2!,% /.+ 3/+ /+&, &+

-*3

!&+

T'tal

100

La"u alir dust loss suspension preheater  masuk raw mill  !'mp'nen

ma((a )*g-4+

#r )*g-*m'l+

m'l )*m'l-4+

-i*2

&2.!&+

/!

2&33/&//////+

Al2*3

,3!!/2

&!2

,2&/2',&&+/%

Ce2*3 $a*

22'+,2 ,2!2'/,

&%'/ %/

Mg* -*3

&!/,2 &!/,2

,! .!

T'tal

62600

&,3',./2&%%, &&&%/!!+2//,%&' +%!%2'2.%+&,3 2//!% &33!2% &!,.3.,!!%+&2.

Fumlah komponen masuk raw mill !'mp'nen ma((a )*g-4+ #r )*g-*m'l+ m'l )*m'l-4+ -i*2 /2&'!/&/ /! &!3/%&!2/////+ Al2*3 2&.'.'/. &!2 2&,/'%+/,+!%' Ce2*3 &2,%!&/. &%'/ +.!!.%+&,2./ $a* ,2!2'/, %/ +%!%2'2.%+&,3 Mg* &!/,2 ,! 2//!% -*3 &!/,2 .! &33!2%

Mg$*3 $a$*3 (2* T'tal

&/'+'.&2 %%''3+%/2 %.,,2/&, ++%&!!

., &!! &.

2!2&,!/&'!,+/ %%''3+%/2 32,/.&&......' &&&%/!!+2//,%&'

m35"am .% mbar : !!!.3../% atm !!.2!%+ m3atm5kgmol<  3.2 $

&!# dari kiln feed /2/!!! kg5h /2/!!!

:

!!!.% bar

 

/%%&% <

 

kg 5h


++2/,,/ 2!2!2%,,' 2&%3!.. &3/.&!. ,2/232&2% &,,.2..& 2&,.2!''& /2!/',' 2&3!//

%/2'+3/+, 3%++22.%% &&&,,.!%3 !3+./.++/ %/&/'.&.+ &/22',+%, !%%+&!'3/

'%3&' !2,'233&, /&/++ !&/&2/.% &&+2//, !3!//&'%' 3.2,,'&,,/

&!!

Lan"utan La"u alir massa raw material keluar raw mill  raw material  keluar raw mill  mengandung (2* dalam raw material  keluar raw mill 

La"u alir raw material  keluar raw mill  !'mp'nen

ma((a )*g-4+

$a$*3

%%''3+%/2

-i*2

,'3..'&/

Al2*3

&+%'.3,.

Ce2*3

&!&%2+,.

Mg$*3 (2*

&/'+'.&2 2'22&3!+

T'tal

&a8u alir ma((a ga( pana( *eluar

65/.5//0

raw mill 


La"u alir uap air dari gas panas masuk raw mill : -ehingga la"u alir uap air keluar raw mill  E !'mp'nen $*2

ma((a )*g-4+ &3//%2'

 )2 (2* -*2

3'&!'!. %.3./3&2 2%23

*2

&!+.2+

T'tal

6.0/3

(asil dan Berhitungan )eraca Massa Raw Mill  !'mp'nen

Raw material tanpa (2* (2* dari raw mill dust lost dari suspension preheater gas panas masuk rawmill raw material kering !7%# (2* 1 dust lost

Input )*g-4+

/%,!%+3./ %.,,2/&, /2/!! %/23/'/%..!.!3 !

@as panas keluar raw mill T'tal

! 302.6/653303

! !'mp'nen

Input )*g-4+

-i*2 s Al2*3 s Ce2*3 s $a* s

/2&'!/2 2&.'.'+ &2,%!&+ ,2!2'/,

Mg* s -*3 s Mg$*3 s $a$*3 s (2* l $*2 g  )2 g (2* g

&!/,2! &!/,2 &/'+'.& %%''3+%/ %.,,2/& &3//%3 3'&!'& 23%'&

-*2 g *2 g 0otal

2%2 &!+.3 +.!+23+!

!%!# !7%# x :

 ma((a

!'mp'nen

2'22&3!+

ma((a )*g-4+

,2%+

-i*2

/2&'!/&/

&3+.

Al2*3

2&.'.'/.

3.,

Ce2*3

&2,%!&/.

2,,

$a*

&23 !!,,/%+!2%'

,2!2'/,

Mg* -*3

6./065025/

&!/,2 &!/,2

Mg$*3

&/'+'.&2

$a$*3

%%''3+%/2

(2*

2'22&3!+ +&/','%''!+

T'tal

kadar (2* in 6 kadar (2* out GDAL;=H :

4M

molkmol5h ,,

3&!%+

%.,,2/&, 6 %.&%!,!!'3 kg5h

2. &. /,

&3'/+% 32,3/., !!3'

32

33+! 3,&+.2/

"utput)*g-4+

Input )*m'l-4+

! ! ! ! +&/','%''!+ /3++,!'+%&.!.!3 302.6/653303

Input )*m'l-4+

"utput )*g-4+

"utput)*m'l-4+

&!3/%& 2&,+! +.!& +%!%3

/2&'!/2 2&.'.'+ &2,%!&+ ,2!2'/,

&!3/%& 2&,+! +.!& +%!%3

2//& &33 2!2&, %%''3. 32,/.& 3&!/ &3'/. &3&&

&!/,2! &!/,2 &/'+'.& %%''3+%/ 2'22& &3//%3 3'&!'& %.3./3&

2//& &33 2!2&, %%''3. &/23 3&!/ &3'/. 32,3/.

!!, 33+

2%2 &!+.3

!!, 33+

&&3,32/

+.!+23+!

&&3,32/

(2* %.,,2/&, kg5h

#r )*g-*m'l+

m'l )*m'l-4+

/!

&!3/%&!2/////+

&!2

2&,/'%+/,+!%'

&%'/

+.!!.%+&,2./ copy dari raw material masuk rawmill

%/

+%!%2'2.%+&,3

,! .!

2//!% &33!2%

.,

2!2&,!/&'!,+/

&!!

%%''3+%/2

&.

&/23,!%',,,, +'2%,2',3+!!+%

2'22&3!+

23%'&& kg5h %.3./3&&%+.,&% kg5h