2 013 R o se mount Inc Al l r i gh ts rese r v ed For m o re information wwwro s emountcom Arc e lorMitt a l Increases R e li a bilit y of Critical F u rnac e Cooling Circ uit Leak Det e c t ion with High P e r f ormanc e Magn etic Flo w m e t e r s R E SULTS I mpro v e d sa f e t y b y i d e n tif y in g le aks be f ore po t e n ti ally haz a rd o u s c o n d i t i o n s o c c u r I ncre a sed fur n ac e a v ail abilit y b y reduc i ng nuisan c e sh ut do wns R edu c ed m a in t e n a nc e c o sts and im pro v ed le ak de t e c t ion pe r f orm a nc e APPLIC ATION B l as t F u r n a c e T u yer e C o o l i n g W a t e r L e a k D e t e c t i o n CUSTO M ER Arc e lo rMit t a l pl an t lo ca t e d in Fl ora n ge in F r an c e Ar c e l o rMi ttal i s the w o rlds le ading in tegra t ed stee l and mining c o m p an y with a pre s e n c e i n mo re th an 60 c o u n tri e s CHA L L E N G E W a t e r is u s e d t o c o ol t h e t u y e res th a t injec t a i r in t o th e bl a s t f u r n a c e T h e f l o w o f c o o l i n g wa t e r a t the i n le t and out let o f the c o ol in g circu i ts is moni t o red t o de t e rmi n e i f t h e r e i s a le ak in the c o ol in g c i r c uit whi c h wou l d show up a s a di f f e r e n c e be t w ee n the t w o f l o w s T h e fl o w me a s ur e m e n t mu st be a s acc u ra t e a s po s s i bl e t o q u i c k l y i d e n ti f y a l e ak and re li able t o pre v e n t unnec e s sar y al arms and shut downs A le ak in the c o ol in g w a t e r c i rc u i t c h ange s the dyn a m i c s o f the c o oling s y st e m impa c t ing th e re ac tio n in t h e f u r n a c e a n d decre a si ng t h e p e r f or m a nc e and e f fic i e n c y o f the furn ac e M o reo v e r if the le ak is no t de t e c t ed i n a ti me ly m a nne r an d w a t e r is i n j e c t ed in t o the fu rn ac e h y dro g e n i s pro d u c e d resu lt in g in d a ng e r ou s sa f e t y c o n d i t io n s a n d c a u s ing e r o s io n i n th e f u r n a c e wal l s and roo f th a t can be expe nsiv e and t i m e c o n s um in g t o re pa ir Arc e lo rMit t a l wa s l ook in g f o r a mor e a c c u ra t e r e l i abl e me t h o d t o m e a s u r e c o ol in g wat e r f l ow in t o a n d o u t o f t h e f u r n a c e Th e al lowed diff e r e n c e be t w ee n the input and output flo w is 150 Lhr a t a flo w ra t e of 4 0 m 3 hr or a ppro x i m a t e l y 0 375 o f the c o ol ing w a t e r flo w The m e a s ure m e n t m u st be re pe a t able and re li able t o pre v e n t false al arm s and nui s anc e furn a c e sh ut down s a n d t h e m e as u r em en t d e v i ce s sh ou ld be se lf ch eck i ng t o in sure t h e y a r e wo rk in g c o r r ec tl y Inst all e d R o s e m o un t 87 00 Ma gneti c F l o wm e t e r s to mea s ure t h e co o l i n g w a te r f l o w a t A r cel o r M i t ta l f u r n a c e Besid e s the impr o v ed s a fet y the Eme r s o n s o lution fac i lit a t e d the st ar tup thanks t o the s e amless in t e gra t i o n o f th e 8700 Ma gm et e r with Profibu s P A pr ot ocol i n ou r existin g sy st e m Da vid K r a e me r Pr o j ec t m a n a g e r ME T A L S MINING R O SEMOUNT 8700 MAGMET ER