Page 37 - Steel Tech India eMagazine Volume October 2020
P. 37
81. Ŗ 01 Ŗ 1EVQDGT
Transition from Integrated to Electrical
Steelmaking Process Route: The Importance
of Secondary Metallurgy
*Bojan Vucinic and Gandin Franco,
Danieli +6#.;
6JG V[RKECN UGEQPFCT[ OGVCNNWTI[ EQPſIWTCVKQP CU RCTV
Abstract
QH C $1( DCUGF OGNV UJQR EQPUKUVU QH
)NQDCN TGSWKTGOGPVU HQT %1 reduction have strong
2
KPƀWGPEG QP VJG EJCPIGU PGGFGF HQT KTQP CPF Ŗ 5VCPFCTF CTIQP UVKTTKPI UVCVKQPU UVGGN EJGOKUVT[
UVGGNOCMKPI VQ CFQRV PGY VGEJPQNQIKGU VJCV YKNN JQOQIGPK\CVKQP NKIJV CNNQ[KPI CPF DWHHGTKPI
IGPGTCVG NGUU %1 . The ability to produce steel grades
2
YKVJ WNVTC NQY ECTDQP WNVTC NQY 5WNRJWT NQY PKVTQIGP Ŗ #TIQP UVKTTKPI UVCVKQPU YKVJ VQR NCPEG UVKTTKPI
CPF NQY J[FTQIGP EQPVGPVU CU YGNN CU JKIJ FGITGGU CFFKVKQPCN 5WNRJWT TGOQXCN
QH UVGGN ENGCPPGUU VQIGVJGT YKVJ VJG TGSWKTGF JKIJ Ŗ %JGOKECN JGCVKPI UVCVKQP
OGNV UJQR RTQFWEVKXKV[ CPF JKIJ OGNV UJQR WVKNK\CVKQP
TCVGU CTG VJG OCKP SWGUVKQPU HQT UVGGNOCMGTU FWT KPI Ŗ 4* XCEWWO FGICUUKPI UVCVKQP ECTDQP CPF J[FTQIGP
VJG VTCPUKVKQP HTQO VTCFKVKQPCN KPVGITCVGF OGNV UJQRU TGOQXCN CPF QT
VQ UVGGNOCMKPI RTQEGUUGU DCUGF QP VJG GNGEVTKECN CTE Ŗ 8CEWWO 6CPM &GICUUKPI UVCVKQP ECTDQP PKVTQIGP
HWTPCEG CU VJG RTKOCT[ OGNVKPI WPKV 'XCNWCVKQP QH VJG 5WNRJWT CPF J[FTQIGP TGOQXCN
DGUV CXCKNCDNG VGEJPKSWG HQT VJG VTCPUKVKQP HTQO $1(U
VQ C ITGGP '#( UVGGNOCMKPI RJKNQUQRJ[ ECPPQV DG 7UWCNN[ VJG OCKP TGCUQPU VQ KPUVCNN CP 4* FGICUUKPI
DCUGF QPN[ QP GXCNWCVKQP QH VJG RTKOCT[ OGNVKPI KPUVGCF QH 86& WPKV CU RCTV QH C $1( OGNV UJQR CTG
WPKV 6JG ECRCDKNKV[ QH GZKUVKPI UGEQPFCT[ OGVCNNWTI[
RTQEGUUGU VQ HWNſNN TGSWKTGF UVGGN SWCNKV[ OWUV DG Ŗ 2TQFWEV OKZ JKIJ RGTEGPVCIG QH WNVTC NQY ECTDQP
GXCNWCVGF ECTGHWNN[ ITCFGU CPF QT GNGEVTKECN UVGGN ITCFGU
Ŗ 0GGF HQT UNKIJV PKVTQIGP TGOQXCN WPFGT XCEWWO QT
Key words: %1 TGFWEVKQP 5VGGN SWCNKV[ 0KVTQIGP ſPCN PKVTQIGP EQPVGPV EQPVTQN KU DCUGF QP PKVTQIGP
2
%CTDQP 86& 4* 2TQFWEVKXKV[ EQPVGPV CV VJG GPF QH $1( RTQEGUU 7UWCNN[ VJG
OCKP VCTIGV KU TG FWEGF J[FTQIGP EQPVGPV
Comparison: BOF versus EAF Steelmaking
Philosophy Ŗ *KIJ $1( RTQFWEVKXKV[ UJQTV VCR VQ VCR VKOG
6JG OCMKPI QH JKIJ SWCNKV[ UVGGN KPENWFKPI ƀCV RTQFWEV (QT CP GNGEVTKE CTE HWTPCEG DCUGF OGNV UJQR DGUV
UVGGN JCU CNYC[U DGGP VJG FQOCKP QH KPVGITCVGF CXCKNCDNG VGEJPKSWGU YKVJ TGURGEV VQ UGEQPF CT[
OKNNU QRGTCVKPI CEEQTFKPI VQ VJG DNCUV HWTPCEG OGVCNNWTI[ YKNN DG UGNGEVGF DCUGF QP
EQPXGTVGTUGEQPFCT[ OGVCNNWTI[ ECUVKPI TQWVG 6JG Ŗ -PQYP UVGGN EJGOKUVT[ QWVRWV HTQO '#(
OCKP TGCUQP HQT NQY PKVTQIGP EQPVGPVU DGHQTG VCRRKPI
HTQO VJG $1( KU C JKIJ ECTDQP TGOQXCN TCVG FWTKPI VJG Ŗ 6CTIGV RTQFWEV OKZ HTQO SWCNKV[ RQKPV QH XKGY
QZ[IGP DNQYKPI UVCIG VJCPMU VQ JKIJ URGEKſE JQV OGVCN Ŗ 4GSWKTGF OGNV UJQR RTQFWEVKXKV[
EQPUWORVKQP $GECWUG 5WNRJWT KU TGOQXGF HTQO JQV
OGVCN DGHQTG VJG $1( RTQEGUU 5WNRJWT EQPVGPVU DGHQTG Ŗ #WZKNKCTKGU G I CXCKNCDNG ETCPGU
VCRRKPI HTQO VJG $1( GCUKN[ EQWNF DG DGNQY 6JG 6CDNG DGNQY UJQYU OGVCNNWTIKECN VCUMU KP FGVCKN
with proper scrap selection. RGT FKHHGTGPV UGEQPFCT[ OGVCNNWTI[ WPKVU
STEEL TECH
