Coke Oven Heating Regime

7/23/2019 Coke Oven Heating Regime

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HEATING REGIME

HEATING BY EITHER CO GAS OR MIXED

GAS

.



•AIR REQUIRED FOR COMBUSTION ENTERS

AND WASTE GASES GENERATED AREDISPOSED, THRU WHBOX by the DRAFT of

CHIMNEY

•AIR QUANTITY IS REGUATED WITH THE

HEP OF FINGER PATES, FAP

OPENING,OWER BANANA,DRAFT DAMPER

AND CHIMNEY GATES.



•CO GAS FROM NETWORK PREHEATED TO 65 DEG C AND

SUPPLIED TO ALL 68 RISERS EACH ON P/S

& P/S

•EACH GAS RISER IS EQUIPPED WITHISOLATION COCK

& REVERSING COCK



WHAT IS REVERSAL

• ONCE FOR EVERY 20 MTS HEATINGCHANGES FROM GREEN TO RED

OR! RED TO GREEN TAKES PLACEWHICH IS CALLED " REVERSAL

• THIS IS TO ATTAIN UNIFORMHEATING#



GREEN REVERSALODD FLUES OF ODD H/W

&EVEN FLUES OF EVEN H/W



H!W

REG

$50

REG

$5$

WHB"#"

REG

$5$

REG

$52

OVEN$5$ HH

REG

$50

REG

$52

" OVEN$50

WHB"#$

REG

$%

REG

$%

CONCRETE FLUE GAS TUNNEL

E EE E

O O EEO O

H!W"#$ H!W"#" H!W"#%

HEATING SYSTEM IN GREEN REVERSAL



RED REVERSALEVEN FLUES ODD H/W

&

ODD FLUES OF EVEN H/W



X

Y

$0

C ' X(Y)$0! ' $5 " $65 ** ' T +, -. 1 F "S3+

' $56 " $60 ** ' T +, -. 1 D ( S3+

F

AS

H

P

A

T

E



H!W

REG

$50

REG

$5$

WHB"#"

REG

$5$

REG

$52

OVEN$5$ HH

REG

$50

REG

$52

" OVEN$50

WHB"#$

REG

$%

REG

$%

CONCRETE FLUE GAS TUNNEL

E EE E O O EEO O

H!W"#$ H!W"#" H!W"#%

HEATING SYSTEM IN RED REVERSAL



F&'e (o))e(t*o) *) +-+(e)t h!/0 *) o)e

1e2e1/+&3h! 4"#$ , "#"5

H! "#$ H! "#"



150 150

F4 -1,,-+1, +, G/R 373.4



PAUSE

• SMALL INTERMISSION PROVIDED ATCHANGEOVER FROM ONE HEATING TO

ANOTHER

• FACILITATES EVACUATION OFRESIDUAL GASES

• 0 SECONDS IN 9AT$&2

• 0 SEC# IN 9AT



REVERSING WINCH

• R73+,: ;+,-< *-<.,+* + *., 13

• 373+,: < <.+,: =* 31* RED <.+,: 1

• GREEN <.+,: .,> 7+- 73. 1 ..+, ,+13*

• <.+,: 1 < ?.3=

• T<+ -1,+ 1 . *113 .,> :.3 ?1@#



•D1*2e/ 61o2*e +1e e&e(t1*(+&, +) P)e'7+t*(

•M+)'+& P1o2*/*o) */ +&/o 8*2e) *) (+/e of tot+&6oe1 f+*&'1e

•M*)*7'7 +*1 61e//'1e 1e9'*1e fo16)e+'7+t*(1*2e */ : ;8!/9.(7•A&& the WHBo<e/ +) he+t*)8 8+/ 1e2e1/*)8

(o(;/ +1e (o))e(te to th*/ /y/te7.

•Co)*t*o) of the 1o6e/ +) 6'&&ey/ */ to be

e)/'1e.



INTERLOCKS OF REV#

WINCH• To e)/'1e the /+fety of the /y/te7, /o7e

*)te1&o(;/ +1e 61o2*e /'(h th+t

• R7#;+,-< :1 1 . 1++1, 3+&o)8 *th hoote15• he) 1e8 .1+ft *) both the /t1e+7/ 8oe/ be&o

5**;-

• Whe) h!8+/ 61e//'1e 8oe/ be&o 50**;-

• Whe) +*1 1o6e /)+6/• R7# ;+,-< 3*.+, +, < .* 1++1, 3b't hoote1

(o7e/5 he) 8+/ 1o6e /)+6/



AFTER REV COCKB

SYSTEM IS 9IFURCATEDINTO TWO

RED & GREEN



•EACH SUB SYSTEM AFTER REV#COCK ISPRO=IDED WITH A CYLINDER AD>USTED

IN ORIFICE

•THEN EACH SUB SYSTEM IS

CONNECTED TO A MANIFOLD



•THE MANIFOD IS CONNECTED TO

THE FUES BY RU99ER HOSE.

•OTHER END OF THE HOSE IS

CONNECTED TO WASHER HOLDER

AND RISER UNIT.



•FOR EACH FUE, WASHER OF

PRESCRIBED SI?E IS PRO=IDED IN THEWASHER HODER

•GAS FOW FOR ENTIRE HAF SECTIONOF H!W IS REGUATED BY CYLINDER .

•GAS FOW FOR EACH FUE IS

REGUATED BY WASHER



AIR ENTERS THRU WHB , BUS

FUE AND REGENERATOR CO GAS AFTER RISER UNIT

• PASSES THRU CERAMIC

RISER

•AIR AND GAS UNDERGOES

COMBUSTION



REGENERATOR

• THE HEAT IN THE WASTE GAS

IS A9SOR9ED ?= CHECKERS

DURING DOWN( STREAM AND

GIVEN AWAY 1 AIR DURING UP(

STREAM



OWER BANANA SCHEME P!S377

$ 2 % 5 6 8 $0 $$ $2 $ $% $5 $6

00 5 5 5 5 5 5 5

00 % 2 0 28 26 2% 22

00 % 2 0 28 26 2% 22

00 5 5 5 5 5 5 5



OWER BANANA SCHEME C!S3775

$ $8 $ 20 2$ 22 2 2% 25 26 2 28 2 0 $ 2

5 5 5 5 5 5 5 00

% % % % % % % 00

% % % % % % % 00

5 5 5 5 5 5 5 00



MEANS FOR FLAME

LENGTH ADUSTMENT

• UPPER 9ANANA

• DEFLECTOR

•RECIRCULATION WINDOW

• RESERVE 9RICKS#



CONTROL VERTICAL TEMP6/28

OR /2

MEASUREMENT TO BE STARTED 5 MTS

AFTER RE=ERSA

MESUREMENT TO BE STARTED FROM

"$" C!S UP TO "$" P!S IN A @U FASHION



MEASUREMENT TO BE

DONE IN @ NON " 9URNINGFLUE

MEASUREMENT TO BE

COMPETED BY RE=ERSAEND.



CORRECTION FACTOR 13

CVT• VALID FOR A PARTICULAR CP

• TO COMPENSATE THE DROP IN TEMP

WITH TIME OF MEASUREMEN

• 9ROADLY CLASSIFIED INTO % TEMPONES

• STARTS FROM C/S $0$ AND ENDS WITHP/S $0$



• TEMP DIFF. BETN P!S AND

C!S CONTRO =ERTICAS IS 5(%5

DEG C$#5 DEG C BETN. AD>ACENTFUES5

• DIFF. BETN. E=TFUE TEMP NEXTTO E= NOT TO EXCEED 0 DEG C

•DIFF . BETN. E=T C=T NOT TOEXCEED $00 DEG C#



CROSS WALL TEMP CWT!

3"% FUES5

• TAKE $0/$$ H/WS AS ONE SET

• MEASURE IN TOTAL % REVERSALS5 H/WS IN 2REV

• START MEASUREMENT FROM C/SAND MOVE IN AIG(AG WAY



WASHER SCHEME H/WALLS($02 TO $6 / H/WALLS $0$ B$68!

$ 2 % 5 6 8 $0 $$ $2 $ $% $5 $6

2$# $6# $6#% $6#2 $6#$ $6#$ $6#$ $6#$ $6#2 $6#2 $6#2 $6#2 $6# $6# $6#% $6#%

$ $8 $ 20 2$ 22 2 2% 25 26 2 28 2 0 $ 2

$6#5 $6#5 $6#6 $6#6 $6# $6# $6# $6# $6#8 $6#8 $6#8 $6# $6# $# $8#8 22#

$ 2 % 5 6 8 $0 $$ $2 $ $% $5 $6

2$#% $#$ $% $#5 $#% $#% $#% $#5 $#6 $#6 $#6 $#6 $# $# $# $#

$ $8 $ 20 2$ 22 2 2% 25 26 2 28 2 0 $ 2

$# $# $#8 $#8 $#8 $#8 $#8 $#8 $# $# $# $# $%# $5#5 $ 22#6



END VERTICAL TEMP

$&2 VERTICALS!

• MAX EVT( $250/$00 DEG C

• EVT AT EXTENDED CP " $$%0/$$80

DEG C



COEFFICIENT OF 9ATTERYK9!

+,>+-. * ,+13*+=!• K9' 66(0! ) 66(0! ' $#0 +>.4!

2J66

• 66 ' ,1 1 </; -1,+>3>

• 0' ,1 1 </; >7+.> 31* / >.= .73.: * ?=*13 <., ) 20 DEG#C

• 0 ' ,1 1 </; -1,+>3> 31* -/ >.= .73.: * ?=*13 <., )20 >: C



KC )o of +28/0 e2*+te by

7o1e th+) e8 ( f1o7 the1e/6e(t*2e t+18et

tot+& )o of +28/0 *) the +y35

( !"3*e+&5



COEFF OF EXCESS AIR

3theo1et*(+& ".5

ALPHA ' $ ) K O2(0#5 CO!

CO2)CO

fo1 (o 8+/ 4 $.:%

fo1 BF 8+/ 4 %.#J



FREE SPACE TEMP

• T<+ + < * *.3> +, < 3.- 1 < 17, . 2/ 1 -1+,: 3+1>

<3 / .,> -/ -<.3:+,: <14 ;+< <<4 1 < <3*1-14#

• T<+ * <14> ? +, < 3.,: 1 80(800 >: C#



•H*8he1 FST 1e/'&t/ *) (1+(;*)8 of+1o7+t*(/ +) ')+)te 81+6h*te

e6o/*t*o) h*(h +ffe(t/ t+1 f&'**ty +)

+&/o 8+/ t1+(; -+77*)8.

• &oe1 FST 1e/'&t/ *) )o) 1e+*)e// of(o;e 7+//



CHARGE LEVEL

MEASUREMENT• C1.4 474 1 ? *.3> +, < 17,

+**>+.4= .3 -<.3:+,: ;+< < <4

1 . 114 317+>> @-4+74= 13 +#• T< 3 .- <14> ? .31,> 250(00

**#

• T1 ? *.3> <3 .44 <3 -<.3:+,:<14#

SHRINKAGE



SHRINKAGE

MEASUREMENT

• I + *.3> +, < 17, <3 .44 -<.3:+,: <14 $5* ?13 < ,> 1 -1+,: 3+1>#

• T< <3+,.: + 250(00 **

• <3+,.: ' <3+,.: +, ** J $00 600 **-1.4 474 .3 -<.3:+,:!

• DESIRA9LE VALUE' 5.31@#!

• 4 <3+,.: 34 +, *13 ;.44 33• *13 <3+,.: + < 34 1 *13 714.+4 *.3



DRAFT

• S-+1, -3.> ?= < -<+*,=

• A*1, 1 -+1, -3.> >,> 1, -<+*,= <+:<B

;. :. *B -4+*.+- -1,>++1, -#

• D3. .-+4+. +,4+,: 1 .+3 .,> 1 4+,: 1 ;.:. +,1 .*1<3#

• D3. + *.,.+,> ;+< < <4 1 -<+*,= :. +,.1 *1>#



•I)*(+t*o) fo1 8oo 1+ft */ /&*8ht&y 6o/*t*2e 61.+t

2e1t*(+& to6, /t1o)8 f&+7e +) +&6h+ K".".:.

•D1+ft /ho'& be ')*fo17 th1o'8ht the b+tte1y fo1

bette1 te76 ')*fo17*ty

•.U)*fo17*ty of 1+ft */ to be +tt+*)e by 1e8'&+t*)8

1+ft +76e1/ +t +/te he+t bo<e/ +t&e+/t

t*(e!7o)th

•D1+ft 1e8'&+t*o) */ o)e *th the he&6 of

INCINTED MANOMETER.



VERTICAL TOP PRESSURE

• VTP 1 ? *.,.+,> . 4+:<4= 1++7 1 . 1 37,

+,+43.+1, 1 .+3 +,1 < =*CROSS LEAKAGES

• T< .3 *.+,4= 3.; :. 31* 17, 1 <.+,: =*

• -31 4..: .3 < +,>+-.+1, 1 ?.> 33.-13=-1,>++1,

• C31 4..: .4;.= 1 ? . -<-

• H+:< ;. :. * + < +,>+-.+1, 1 -31 4..:



OVEN SOLE PRESSURE

GCM P3# ' S14 3# ) $#2 <

h he*8ht bet). O2e) /o&e +)

GCM3 "$ 7t1/ *) o'1 (+/e5

De/*1e /o&e 61e//'1e $.#".$77



COKE MASS TEMP

• COKE MASS TEMP MEASURED THRU ALLCHARGING HOLES AT % LEVELS ALONGOVEN HEIGHT

• MEASURED WITH THERMOCOUPLESINSERTED AT (8 HRS OF CP

• DESIRA9LE COKE MASS TEMP#AT 0 MTS9EFORE THE END OF CP( $050 >: C



GENERAL PRO9LEMS

• 9UFFING

• CHIMNEY CROSS LEAK

• CHIMNEY SMOKING WHITE• CHIMNEY PUMPS NOT WORKING

• WASTE GAS TEMP HIGH ETC

JJJREASONS B INDICATIONS AND

REMEDIES

Coke Oven Heating Regime

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