PO WER A s part of the fl ue ga s desu lfu r iza t io n proce s s th e den s i t y of th e p r o c ess l i qu id s is m e a s ured a t t h e f o l l o w in g l o c a t i o n s in t h e pi peli n e L imesto neli m e sl urry pro d ucti on l i n e L imesto neli m e sl urry feed li ne in to A b s o rber R ecir cu la ti on l i ne in t h e Absor b er C a l ci um su lfi t e s l u rry li ne goin g i n t o th e Ox idi z er G ypsu m sl urry prod uct i o n li ne CHALLENGE A pow e r p l a n t in C h in a n eed ed to i n st a l l sev e ra l den s ity me ters in a wet scrubbing FGD sy stem that were w o rkable in th e following process c o n d it io n s an d met t h e fo ll ow in g co mm ercia l requ irem en ts A bra s ive s l ur ry with a pa rti c le size of 1 0 to 60 m and 60 to 70 s o l i d s co nce n t r at io n by wei g ht A ccuracy re quireme n t of 1 to 8 kgm 3 N omin al flo w r a te of 1 50 m 3 hr 3 150 p r ocess pipe R esistant to plug ging L ow pressure drop L o w m a i n t e n a n c e a n d l o w c o s t 1 5 to 2 year performance warranty SOLUTION The power pl ant chose to i n st al l mu lt ipl e Mi cro M ot ion 7 828 dir e ct ins e r t i o n densi t y meters T y pi ca ll y tu be density meters or Coriolis flow m e ters would have been selected given the particle size and solids co ncent r at io n However by ch angi ng the installation the custom er c h o s e to i n st al l the fo rk de nsi t y m e t e rs for the c o st compe t itiv eness of these m e ters I n add i tion these me t e rs a l so pro v ide d t h e fo ll o w in g be n e f i t s C on ti nu o u s real t im e de nsit y me asu r eme n t E as y direct insertion ins t alla tion G ood resista n ce to abras i ve fluid W ide selecti o n of wet t e d ma teri al appli c at ion s O nl ine di agnos t i c tool s avai labl e t h rou g h the ADVi ew so ft ware application The customer installed each meter in a Tpiece pocket at a specific angle with 1 recessed from the pipe ID Each meter wa s i n s t al led at a vert ical pi pe wi th sl urr y fl owin g upwards The angle w a s c h osen to en sure tha t th e sl urr y wi th in t h e po ck et wa s constantly re freshed which prolong s the lif espan of the v i brati n g ti ne s of t h e me ter because o f t h e a b rasive slurry O v eral l wit h th is in st all a tion the c u stom er receive d the following benefits S im ple lo w co st in sta l l a ti on re duci n g in st rum e n ta ti on cos t s by approximatel y 500 700 per me t e r I m p roved quality c o ntrol of li me Ca l ciu m H y dro x i d e opt i m i zi ng the desu lfu r izat io n proce s s cost s by reducing wast e of raw material L onger meter lifetime given the meter s resis t a n c e to abrasive fl ui d red u ci ng op erat io n and ma intenance costs by about 1000 0 per year Inst all a ti o n o f a Mi cro Mo ti o n 7828 di rec t ins e r t i o n de nsit y me t e r i n F G D pr o c ess pipe l i ne