Page 51 - Steel Tech India eMagazine Volume October 2021
P. 51
92/ Ć 12 Ć 2FWREHU
Continuous Pickling cum GalvaniYing Line CPGL for
Hot Rolled GalvaniYed Steel Coils Production
Sanat Bhaumik
INTRODUCTION +5*, FRLOV )LJ FDQ EH SURGXFHG E\ D FRPELQDWLRQ
RI FRQWLQXRXV SLFNOLQJ DQG JDOYDQL]LQJ RSHUDWLRQV 7KH
)RU KRW UROOHG JDOYDQL]HG VWULSV WKHUH LV D KXJH SRWHQWLDO
PDMRU DGYDQWDJHV RI VXFK FRPELQDWLRQ &3*/ DUH ORZ
IRU ODUJH VDYLQJ RQ SURGXFWLRQ FRVW SURYLGLQJ RI FRXUVH
LQYHVWPHQW FRVW KLJK SURGXFWLRQ IOH[LELOLW\ DQG TXDOLW\
WKH ILQLVKHG KRW UROOHG JDOYDQL]HG +5*, VKHHWV LV ILW
SURGXFLQJ VNLQ SDVVHG +5*, VWULSV RI PP WR PP
IRU WKH SXUSRVH DQG UHDFKHV WKH VDPH TXDOLW\ VWDQGDUG
WKLFNQHVV ORZ RSHUDWLQJ FRVW OHVV FRLO KDQGOLQJ QR
DV WKH FROG UROOHG VWHHO JDOYDQL]HG &5*, JUDGHV 7KH FROG UROOLQJ DQG GHJUHDVLQJ RSHUDWLRQV ORZ PDQSRZHU
WUHQG IRU PDQXIDFWXUH RI KRW UROOHG FRLOV LQ WKH ZRUOG QHHGV LQVWDOODWLRQ FRVW UHGXFWLRQ DQG UHGXFLQJ
LV FKDQJLQJ YHU\ IDVW ZLWK WDUJHW IRU UROOLQJ WKLQQHU DQG HQYLURQPHQWDO LPSDFWV
WKLQQHU JDXJHV HYHU\ GD\ 7KLV KDV DOUHDG\ FUHDWHG
&RPELQLQJ KLJK HIILFLHQF\ SLFNOLQJ VSHFLILF VNLQ SDVVLQJ
HQRXJK FRPSHWLWLRQ IURP +5*, VWULS SURGXFHUV IRU WKH
DQG WKH RSWLPL]HG KHDW WR FRDW WUHDWPHQW ZLWKLQ D VLQJOH
&5*, SURGXFWV HVSHFLDOO\ IRU FRQVWUXFWLRQ DQG VRPH
SURFHVV OLQH WKH FRQWLQXRXV SLFNOLQJ DQG JDOYDQL]LQJ OLQH
HQJLQHHULQJ DSSOLFDWLRQV
&3*/ JLYHV WKH FXVWRPHU WKH FRPSHWLWLYH DGYDQWDJH
'XULQJ 2FWREHU DQ $UYHGL (63 (QGOHVV LQ WHUPV RI LQYHVWPHQW DV ZHOO DV RSHUDWLRQDO FRVW DQG
6WULS 3URGXFWLRQ OLQH LQVWDOOHG LQ D SODQW EHORQJLQJ WR PLQLPL]HG HQYLURQPHQWDO LPSDFW 7KLV SURFHVV VHW XS
WKH &KLQHVH VWHHO SURGXFHU 5L]KDR 6WHHO *URXS &R HQDEOHV SURGXFWLRQ RI ILQDO JDOYDQL]HG KRW UROOHG VWULS
/WG SURGXFHG XOWUD WKLQ KRW VWULS ZLWK WKLFNQHVV RI MXVW ZLWK FROG PLOO WROHUDQFHV
PP IRU WKH YHU\ ILUVW WLPH +RW VWULS DV WKLQ DV
PP KDG QHYHU EHIRUH EHHQ SURGXFHG DQ\ZKHUH LQ &3*/ &RQ¾JXUDWLRQ 3URGXFWLRQ &DSDFLW\
WKH ZRUOG 6XFK WKLQ VWULS FDQ FRYHU DOPRVW SHUFHQW $ FRQWLQXRXV SLFNOLQJ FXP JDOYDQL]LQJ OLQH &3*/
RI UHJXODU FRPPHUFLDO FROG UROOHG VWULS DSSOLFDWLRQV DQG WR SURGXFH +5*, FRLOV ZLOO KDYH GRXEOH SD\ RII HQWU\
LW JLYHV DQ HQRUPRXV RSSRUWXQLW\ IRU +5 JDOYDQL]HG VHFWLRQ ODVHU ZHOGHU IRU VWULS HQGV MRLQLQJ KRUL]RQWDO
VWULSV WR EH XVHG LQ SODFH RI PDQ\ &5 JDOYDQL]HG *, ORRSHU VFDOH EUHDNHU SLFNOLQJ VHFWLRQ VLGH WULPPHUV
DSSOLFDWLRQV ZLWK VFUDS FKRSSHU LQGXFWLRQ IXUQDFH ]LQF FRDWLQJ
Fig. 1: HRGI coils from a Continuous Pickling cum Galvanizing Line (CPGL)
STEEL TECH