By inst alling this wire less net w ork w e w e re able t o monit or and treat the NO x in the kiln su cc essfully w h e n the re w a s no o t he r alt e r nativ e S t e v e T yrrell Se nior Elec trical Supe r visor CalP or tl and F or more in f or m a t ion www Eme r sonProc e s sc omSm ar t Wire le s s SMART WIRELES S AP P L IC A T IONS Smar t Wireless T ec hnology Help s CalP or tland Compan y Comply with Air Q u alit y R e gulations at C a lif o rnia Cement Plant B E N E F I T S Se lf or g ani zing wire le s s ne t w ork re li ably monit or s c e me n t kilns NOx e mis sions reduc t ion proc e s s de s p it e ro t a ting equipme n t and h ar sh c onditions E n a ble s c ompli anc e with qu alit y e msis sions require me n ts I nst all a t ion o f the de vic e s c omple t ed in one d a y CHALLENG E The gradu allysloped 540f oo t long 13f oo t di ame t e r kiln ro t a t e s almo st t wic e a minut e and ope r a t e s a t t e mpe r a t ure s a s high a s 2800 F a hre n he it The c o mp an y u s e s a Se lec tiv e Non Ca t a ly tic R educ tion S NCR proc e s s o f s pra ying ammoni a in t o the kiln t o c on t rol NOx e mis sions It needed t o monit or the t e mpe r a t ure o f the ammoni a the proc e s s g a se s a s w e ll a s the kilns slight v a c u um It h a d tried u sing a slip ring around the kiln t o c heck the se p arame t e r s but fric tion al w e ar ground do wn the ring and the gro wth o f the kiln a s it he a t ed up brok e insul a t or s isol a t ing the proc e s s sign al SOL U TI ON The CalP or tl and inst all a t ion inc lude s Eme r sons se lf or g ani zing wire le s s ne t w ork o f fie l d instr ume n t a t ion th a t re li ably monit or s the proc e s s u s ed t o reduc e NOx e mis sions inside a ro t a ting c e me n t kiln a t the f a c i lit y NOx is a b y produc t o f the p y ro proc e s s in v olv ed in the c h e mical proc edure o f c e me n t m anuf a c t ure The wire le s s ne t w ork inc lude s f o ur o f Eme r sons R o se moun t wire le s s t e mpe r a t ure transmitt e r s one wire le s s DP transmitt e r and a Sm ar t Wire le s s G a t e w a y CalP or tl and c ho s e wire le s s becau se it w a s the be st solution th a t c o uld mee t the v e r y c h alle nging applica tion The ro t a tion e x tre me t e mpe r a t ure and the loca tion o f the kiln a t 20 t o 40 f e e t abo v e grade m a de u sing a wired solution imprac tical said S t e v e T y rre ll CalP or tl and se nior e lec trical supe r visor Em e r s o ns Sm ar t Wire l es s t e c h n o l o gy re li a b ly m o nit o r s t h e p ro c e s s u s e d t o r e d u c e N O x e m i s s i o n s i n s i d e a r o t a r y c e m e n t ki ln a t C alPor tl an ds c e m e n t p l an t