T he wire less s olution ha s unc o v e red new oppor t unities for increa sing throu ghput and r edu c in g c o sts W e h a v e als o bee n able t o signific a ntly redu c e our maint e nanc e c o sts a s s o c i at ed with t e mpe rat ure monit o ring b y ex c l uding the u s e o f slip ring s Vit a ly Nik ono v He ad o f Me trological De p ar tme n t R U S AL Boksit ogor sk F or m or e in f or m a ti on www Eme r s onProc e s sc omSm ar tWire le s s SMART WIRELES S AP P L IC A T IONS Smar t Wireless T e c h nology Impro v es Pro duc tivit y of R o t a ting Kiln at R u ssian Alumina Plant BENEFITS R e li a b le t e m pe r a tur e me a sur e me n t O ff s pec cak e p roduc tion reduc ed b y 96 t ons pe r y e ar f or e a c h f ur n a c e M ain t e n anc e freque nc y time and o pe r a ting c o sts reduc t ion CHALLENG E R U S AL is the w orld s l ar ge s t produc e r o f aluminium and alumin a The R U S A L Boksit ogor sk re fine r y u s e s se v e n 5m di ame t e r 100m long r o t a t i n g k i l n s t o p r o d u c e 1 6 5 0 0 0 t on n e s o f a r g i l a t y p e o f c l a y a y e a r f r o m b a u xi t e K i l n t e m p e r a tu r e s a r e c r i t i c a l t o p r o c e s s e f f i c i e nc y a n d the qu alit y o f the proc e s s ed m a t e ri al The y are me a sured u sing the r moc o uple s a tt a c hed t o the sur f ac e o f the furn ac e Becau s e the k i l n r o t a t e s t h e w i r e d d e v i c e s w e r e c on n e c t e d d i r e c tl y t o a s l i p ri n g a s se mbly with c y lindrical carbon br u she s Due t o be aring lubrica tion t h i c k e n i n g i n t h e h i g h t e m p e r a tu r e e n v i r o n m e n t t h e s l i p r i n g s w e r e no t m aking c on t ac t all the time This led t o o ff s pec ar gil be ing produc ed th a t needed t o be re w ork ed In addition the furn ac e h a d t o be shut do wn f o r three hour s t w ic e a mon t h t o c l e a n the slip ring s reduc i ng o v e r all produc tion v olume s SOL U TI ON R U S AL Boksit ogor sk ide n tified wire le s s a s an alt e r n a tiv e t o the unre li a ble s p lit ring c onnec tion and applied Eme r s on s Sm ar t Wire le s s t ec hnology a s p ar t o f a fie l d tri al During a pl anned shut do wn o f a ki ln E me r so n s Ro s e m o u n t 648 wire l e s s t e mpe r a t ure transmitt e r wa s c o nnec t ed t o t h e e x i s t i n g t h e r m o c o u p l e s T h e d e v i c e w a s m o u n t ed o n h e a t p r o o f c e ramic se al t o pro v ide pro t ec tion from t e mpe r a t ure s ranging be t w ee n 240280 460540F The R o se moun t wire l e s s de vic e transmits me a sure me n t d a t a t o a g a t e wa y th a t is c on nec t ed t o a local ne t w ork vi a an Ethe r ne t in t e r f ac e A u thorised pe r s onne l are able t o vie w this d a t a v i a a we b in t e r f ac e and can e nsure the c orrec t kiln t e mpe r a ture s are m ain t ained