Upload
cma-anita-singh-gautam
View
243
Download
2
Embed Size (px)
Citation preview
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 1/44
HEATING REGIME
HEATING BY EITHER CO GAS OR MIXED
GAS
.
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 2/44
•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.
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 3/44
•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
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 4/44
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#
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 5/44
GREEN REVERSALODD FLUES OF ODD H/W
&EVEN FLUES OF EVEN H/W
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 6/44
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
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 7/44
RED REVERSALEVEN FLUES ODD H/W
&
ODD FLUES OF EVEN H/W
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 8/44
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
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 9/44
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
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 10/44
F&'e (o))e(t*o) *) +-+(e)t h!/0 *) o)e
1e2e1/+&3h! 4"#$ , "#"5
H! "#$ H! "#"
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 11/44
150 150
F4 -1,,-+1, +, G/R 373.4
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 12/44
PAUSE
• SMALL INTERMISSION PROVIDED ATCHANGEOVER FROM ONE HEATING TO
ANOTHER
• FACILITATES EVACUATION OFRESIDUAL GASES
• 0 SECONDS IN 9AT$&2
• 0 SEC# IN 9AT
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 13/44
REVERSING WINCH
• R73+,: ;+,-< *-<.,+* + *., 13
• 373+,: < <.+,: =* 31* RED <.+,: 1
• GREEN <.+,: .,> 7+- 73. 1 ..+, ,+13*
• <.+,: 1 < ?.3=
• T<+ -1,+ 1 . *113 .,> :.3 ?1@#
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 14/44
•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.
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 15/44
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/
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 16/44
AFTER REV COCKB
SYSTEM IS 9IFURCATEDINTO TWO
RED & GREEN
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 17/44
•EACH SUB SYSTEM AFTER REV#COCK ISPRO=IDED WITH A CYLINDER AD>USTED
IN ORIFICE
•THEN EACH SUB SYSTEM IS
CONNECTED TO A MANIFOLD
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 18/44
•THE MANIFOD IS CONNECTED TO
THE FUES BY RU99ER HOSE.
•OTHER END OF THE HOSE IS
CONNECTED TO WASHER HOLDER
AND RISER UNIT.
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 19/44
•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
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 20/44
AIR ENTERS THRU WHB , BUS
FUE AND REGENERATOR CO GAS AFTER RISER UNIT
• PASSES THRU CERAMIC
RISER
•AIR AND GAS UNDERGOES
COMBUSTION
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 21/44
REGENERATOR
• THE HEAT IN THE WASTE GAS
IS A9SOR9ED ?= CHECKERS
DURING DOWN( STREAM AND
GIVEN AWAY 1 AIR DURING UP(
STREAM
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 22/44
OWER BANANA SCHEME P!S377
$ 2 % 5 6 8 $0 $$ $2 $ $% $5 $6
00 5 5 5 5 5 5 5
00 % 2 0 28 26 2% 22
00 % 2 0 28 26 2% 22
00 5 5 5 5 5 5 5
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 23/44
OWER BANANA SCHEME C!S3775
$ $8 $ 20 2$ 22 2 2% 25 26 2 28 2 0 $ 2
5 5 5 5 5 5 5 00
% % % % % % % 00
% % % % % % % 00
5 5 5 5 5 5 5 00
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 24/44
MEANS FOR FLAME
LENGTH ADUSTMENT
• UPPER 9ANANA
• DEFLECTOR
•RECIRCULATION WINDOW
• RESERVE 9RICKS#
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 25/44
CONTROL VERTICAL TEMP6/28
OR /2
MEASUREMENT TO BE STARTED 5 MTS
AFTER RE=ERSA
MESUREMENT TO BE STARTED FROM
"$" C!S UP TO "$" P!S IN A @U FASHION
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 26/44
MEASUREMENT TO BE
DONE IN @ NON " 9URNINGFLUE
MEASUREMENT TO BE
COMPETED BY RE=ERSAEND.
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 27/44
CORRECTION FACTOR 13
CVT• VALID FOR A PARTICULAR CP
• TO COMPENSATE THE DROP IN TEMP
WITH TIME OF MEASUREMEN
• 9ROADLY CLASSIFIED INTO % TEMPONES
• STARTS FROM C/S $0$ AND ENDS WITHP/S $0$
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 28/44
• TEMP DIFF. BETN P!S AND
C!S CONTRO =ERTICAS IS 5(%5
DEG C$#5 DEG C BETN. AD>ACENTFUES5
• DIFF. BETN. E=TFUE TEMP NEXTTO E= NOT TO EXCEED 0 DEG C
•DIFF . BETN. E=T C=T NOT TOEXCEED $00 DEG C#
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 29/44
CROSS WALL TEMP CWT!
3"% FUES5
• TAKE $0/$$ H/WS AS ONE SET
• MEASURE IN TOTAL % REVERSALS5 H/WS IN 2REV
• START MEASUREMENT FROM C/SAND MOVE IN AIG(AG WAY
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 30/44
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
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 31/44
END VERTICAL TEMP
$&2 VERTICALS!
• MAX EVT( $250/$00 DEG C
• EVT AT EXTENDED CP " $$%0/$$80
DEG C
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 32/44
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
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 33/44
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
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 34/44
COEFF OF EXCESS AIR
3theo1et*(+& ".5
ALPHA ' $ ) K O2(0#5 CO!
CO2)CO
fo1 (o 8+/ 4 $.:%
fo1 BF 8+/ 4 %.#J
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 35/44
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#
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 36/44
•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+//
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 37/44
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
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 38/44
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
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 39/44
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>#
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 40/44
•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.
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 41/44
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..:
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 42/44
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
7/23/2019 Coke Oven Heating Regime
http://slidepdf.com/reader/full/coke-oven-heating-regime 43/44
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