performance evaluation of hydrocyclone purification of clay using computer simulation

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PERFORMANCE EVALUATION OF HYDROCYCLONE PURIFICATION OF CLAY USING COMPUTER SIMULATION

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Proposal for MSc thesis that studies the evaluation of performance of a hydrocyclone in the purification of kaolin using computer simulation.

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PERFORMANCE EVALUATION OF HYDROCYCLONE PURIFICATION OFCLAY USING COMPUTER SIMULATIONACRONYMS, ABBREVIATIONS AND SYMBOLSCAD Computer Aided DesigCAPED Computer Aided Pro!ess E"uipmet DesigCFD Comput#tio#$ F$uid D%#mi!sd P#rti!$e di#meter& mdp!& d'(Cut si)e *!riti!#$ di#meter #t '(+ e,,i!ie!%-& mi!ros *d'(-IDE Itegr#ted De.e$opmet E.irometL/VV Lo!us o, )ero .erti!#$ .e$o!it%PSD P#rti!$e si)e distri0utioRMRDC R#1 M#teri#$s Rese#r!2 #d De.e$opmet Cou!i$sp3 gr3 Spe!i,i! gr#.it%V4A Visu#$ 4#si!.o$3 Vo$ume1t3 5eig2t2CHAPTER 1: INTRODUCTIONC%!$oes#rede.i!est2#t#reused,orsi)ig& !$#ssi,i!#tio#ds!reeigo,m#i$%p#rti!u$#tem#teri#$s imi6ture1it2,$uids *g#sesor $i"uids- 0ut t2e%!##$so0e#pp$iedto,$uids 1it2di,,eret desities3 T2eir pri!ip$e o, oper#tiois 0#sedodi,,ere!ei desit%#d7or p#rti!$e si)eo,t2e !ompoets3T2ere#re 0#si!#$$%t1ot%pes o, !%!$oes& t2ese #re g#s !%!$oes *12i!2 m#% 0e geer#$$% re,erred to simp$% #s!%!$oes- #d 2%dro!%!$oes3 Ast2e#meimp$ies& g#s!%!$oes#reemp$o%edit2e!#se12eret2e,$uidit2emi6ture is # g#s *most!ommo$%#ir or itroge g#s- 12i$e2%dro!%!$oes#re used12eret2e,$uidis #$i"uid*usu#$$%1#ter-3 Despitet2e,#!t t2#t !%!$oes !omeidi,,eret s2#pes #dsi)es& #dt2#t t2e properties o, g#ses #re di,,eret ,romt2eproperties o, $i"uids& t2e% #$$ oper#te o t2e s#me 0#si! pri!ip$e3C%!$oes #re emp$o%ed i sm#$$& medium #d $#rge s!#$e idustries 12ere t2e% ser.eimport#t ro$es8 ,or e6#mp$e& g#s !%!$oes #re pre,erred to ot2er g#s9so$id sep#r#tios,or # um0er o, #pp$i!#tios 12i$e 2%dro!%!$oes #re #mog t2e most import#t de.i!esused i t2e mier#$s idustr% *:u%e et al.& ;(('-3 52i$e !%!$oes #re re$#ti.e$% e#s% to,#0ri!#te& t2e% eed to 0e proper$% desiged i order to 0e e,,e!ti.e #d7or e,,i!iet3 Ire!et times& !omputer #ideddesig*CAD- 2#s m#det2edesigo, pro!esses #de"uipmet e#sier #d ,#ster3 52i$e it is true t2#t tod#% t2ere is # $og $ist o, po1er,u$#d !ompre2esi.e pro!ess simu$#tors t2#t #re #.#i$#0$e to#!!ur#te$%mode$ #%pro!ess ,rom # sig$e uit to # !omp$ete pro!ess p$#t& t2ese simu$#tio p#!e!ted to o etr% ito t2e 2%dro!%!$oe3 H%dro!%!$oes #re simp$e %et ro0ustde.i!es 1it2omo.igp#rts& #do.er t2e%e#rs& t2e%2#.e0e!omet2est#d#rde"uipmet ,or !$#ri,i!#tio #d t2i!e!tedto t1o m#>or ,or!es& !etri,ug#$ ,or!e *due to !ir!u$#r motio- #d dr#g ,or!e *due to,$uid ,ri!tio-3 T2e p#rti!$es re.o$.e #roud t2e #6is o, t2e 2%dro!%!$oe 1it2 # r#dius #t12i!2t2e !etri,ug#$ ,or!e is e6#!t$%0#$#!ed0%t2e ,$uid,ri!tio,or!e ot2ep#rti!$es& t2is r#dius de,ies t2e e"ui$i0rium or0it3 T2e resu$t o, t2is is t2#t $#rger #d7ordeser p#rti!$es 12i!2 e6perie!e re$#ti.e$% $#rger m#gitudes o, !etri,ug#$ ,or!e tedto 2#.e # $#rger or0it t2# t2e sm#$$er #d7or $ess dese p#rti!$es3 I, t2e e"ui$i0rium or0ito, # p#rti!$e is $#rger t2# t2e di#meter o, t2e !%!$oe& it 1i$$ 0e deposited o t2e 1#$$s#d1i$$ 0esu0se"uet$%dr#1do11#rdstot2e0ottomout$et udert2ee,,e!t o,gr#.it#tio#ddr#g,or!es3Ast2ep#rti!$esde!re#seisi)e& t2eire"ui$i0riumor0itredu!es 0ut t2e t#per !#used 0% t2e !oi!#$ se!tio pro.ides t2e e!ess#r% redu!tio idi#meter o, t2e 2%dro!%!$oe t2#t ,#!i$it#tes gre#ter depositio o, p#rti!$es o t2e 1#$$s3T2osep#rti!$es12osee"ui$i0riumor0its#resm#$$er t2#t2e#rro1est p#rt o,t2e92%dro!%!$oe#re!#rried#$og1it2t2e,$uid#dout o,t2e2%dro!%!$oe1it2t2eo.er,$o13Figure 2.3: A cloe!u" o# #orce acting on a "article in the "rimary $orte% o# a hydrocycloneT2e 2%dro!%!$oe m#% 0e oper#ted .erti!#$$% or 1it2 t2eir #6es i!$ied #t #% #g$e&e.e 2ori)ot#$$% 0e!#use t2e ,$o1 p#tters #re o$% s$ig2t$% i,$ue!ed 0% gr#.it#tio#$,or!es3 A$t2oug2t2eremo.#$ o, t2euder,$o1is ,#!i$it#ted12et2e#6is o, t2e2%dro!%!$oe is .erti!#$ *Ri!2#rdso et al.& ;((;-310&late ': Hydrocyclone ued to clean coal ((yclone)Hydrocyclone, n.d.)H%dro!%!$oes !# 0e m#de o, met#$ *most$%stee$-& !er#mi! or p$#sti! *su!2 #spo$%uret2#e& po$%prop%$ee& or ot2er t%pes-3 Met#$ or !er#mi! 2%dro!%!$oes #re used,or situ#tios re"uirig more stregt2& or dur#0i$it% i terms o, 2e#t or pressure3 52et2ere is # o!!urre!e o, mu!2 #0r#sio *su!2 #s o!!urs 1it2 s#d p#rti!$es-po$%uret2#e per,orms 0etter t2# met#$s or !er#mi!s3 Met#$ $ied 1it2 po$%uret2#e isused i !#ses o, !om0ied #0r#sio #d 2ig2 pressure3!., Ba'"% Parameter' +or a Sta#ar# C/%loeA!!ordig to :u%e et al. *;(('-& # Jst#d#rd !%!$oeI is de,ied #s t2#t !%!$oe 12i!22#s t2e proper geometri!#$ re$#tios2ip 0et1ee t2e !%!$oe di#meter& i$et #re#& .orte6,ider& #pe6 ori,i!e& #d su,,i!iet $egt2 pro.idig retetio time to proper$% !$#ssi,%p#rti!$es3 T2e 0#si! p#r#meters o, iterest ,or # st#d#rd 2%dro!%!$oe #reB#3 T2eisidedi#meter& D!o, t2e!%$idri!#$ ,eed!2#m0er3 T2is is t2em#>orp#r#meter to 12i!2 #$$ ot2er dimesios #re usu#$$% re$#ted31103 T2e #re# o, t2e i$et o))$e #t t2e poit o, etr% ito t2e ,eed !2#m0er3 T2is i$eto))$e is orm#$$% # re!t#gu$#r ori,i!e 1it2 t2e $#rger dimesio p#r#$$e$ to t2e#6iso,t2e!%!$oe3 T2e0#si!#re#o,t2ei$et o))$eis#ppro6im#te$%(3('times t2e s"u#re o, t2e !%!$oe di#meter3!3 T2e .orte6,ider& 12i!22#s t2e prim#r%,u!tioo, !otro$$ig0ot2t2esep#r#tio #d t2e ,$o1 $e#.ig t2e !%!$oe3 It s2ou$d 0e su,,i!iet$% e6teded0e$o1 t2e ,eed etr#!e to pre.et s2ort9!ir!uitig o, t2e m#teri#$ dire!t$% itot2e o.er,$o13 T2e si)e o, t2e .orte6,ider e"u#$s (3H'times t2e !%!$oedi#meter3d3 T2eC%$idri!#$ Se!tioB T2is is $o!#ted0et1eet2e,eed!2#m0er #dt2e!oi!#$ se!tio3 It 2#s t2e s#me di#meter #s t2e ,eed !2#m0er #d ,u!tios to$egt2e t2e !%!$oe #d i!re#se t2e retetio time ,or t2e 0#si! !%!$oe& t2e$egt2 o, t2e !%$idri!#$ portio is usu#$$% e"u#$ to E((+ o, D!e3 Coe Se!tioB T2e i!$uded #g$e o, t2e !oe se!tio is orm#$$% 0et1ee ;(o#d E(o #d $i