CO-R OT AT ING T SE : F L E XIBIL IT Y IN PL AST IC R E - - PowerPoint PPT Presentation
CO-R OT AT ING T SE : F L E XIBIL IT Y IN PL AST IC R E - - PowerPoint PPT Presentation
CO-R OT AT ING T SE : F L E XIBIL IT Y IN PL AST IC R E CYCL ING PR E SE NT AT ION SCHE ME I ntruduc tio n E xtrude r de sig n fle xib ility Pro c e ss fle xib ility Adva nc e d Re c yc ling e xa mple s Re se rve d
PR E SE NT AT ION SCHE ME
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
I ntruduc tio n E xtrude r de sig n fle xib ility Pro c e ss fle xib ility Adva nc e d Re c yc ling e xa mple s
INT R ODUCT ION
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
Plastic re c yc ling e xtrusion proc e ss is a g e ne ric de finitio n tha t c o ve r a wide ra ng e
- f diffe re nt po ssib ilitie s
We can face “simple” re -granulation re q ue st o r c o mple x c ompounding o r
ble nding pro c e sse s R E
- GR
ANUL AT ION:
- No t c o nta mina te d sing le pla stic type industria l sc ra p e a sy jo b !!!
- Co nta mina te d wa ste stro ng de vo la tiliza tio n & filte ring pe rfo rma nc e re q uire d
- Multi-pla stic s wa ste stro ng mixing pe rfo rma nc e re q uire d
COMPOUNDING: mixing o f so lid pa rtic le s in the pla stic ma trix BL E NDING: mixing o f two o r mo re diffe re nt pla stic s (o fte n no t c o mpa tib le )
The last 2 situations are typical when it’s necessary to give a “new life” to an
use le ss pla stic wa ste to me e t e nd -pro duc t spe c s
INT R ODUCT ION
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
A re c yc ling c o mpa ny tha t wa nts to c o ve r suc h wide ra ng e o f po ssib ilitie s
- ffe re d b y the ma rke t ne e ds to ha ve a fle xible e xtrusion solution
Co-rotating T SE is the mo st fle xib le a nd pe rfo rming so lutio n fo r sa tisfy the pla stic
re c yc ling pro c e ss re q uire me nts
PR E SE NT AT ION SCHE ME
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
I ntro duc tio n E xtrude r de sig n fle xib ility Pro c e ss fle xib ility Adva nc e d Re c yc ling e xa mple s
F L E XIBIL IT Y: MODUL AR DE SIGN
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
Modular design Different barrels sectors available:
- main feeding barrel
- close barrel
- side feeding barrel
- injection barrel
- venting barrel
Easy re-configuration Easy m aintenance Maximun flexibility
F L E XIBIL IT Y: MODUL AR DE SIGN
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
A lo t o f diffe re nt sc re w e le me nts a re a va ila b le to c o mpo se a sc re w c o nfig ura tio n:
Conve ying e le me nt Kne ading e le me nt Mixing e le me nt Sc r e w c onfiguration de pe nds o n: 1) Polyme r type
2) F
ille r
- r fibe r type
3) Additive s 4) F
- rmulation
F L E XIBIL IT Y: MUL T IPL E F E E DING POINT S
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
Po ssib ility to fe e d solid ingre die nts in a dva nc e d po sitio ns (fille rs, fib e rs, a dditive s, po lyme rs) Po ssib ility to fe e d liquid ingre die nts in a dva nc e d po sitio ns (pla stic ize rs, sila ne ,
peroxide, foaming agents,…)
F
- r so lid ing re die nts side fe e de rs a re use d
F
- r liq uid ing re die nt inje c tor
s a re use d
F L E XIBIL IT Y: MUL T IPL E VE NT ING POINT S
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
F e e ding lo w b ulk de nsity so lid ma te ria ls → air in the pro c e ss
Moisture in re c yc le d ma te ria ls
Pro c e ss vo la tile side produc ts (re a c tio ns), vo la tile c ontaminats With multiple a tmo sphe ric a nd va c uum ve nting do me s a ll tho se vo la tile c o mpo ne nts c a n b e e xtra c te d fro m the pro c e ss → final produc t quality
PR E SE NT AT ION SCHE ME
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
I ntro duc tio n E xtrude r de sig n fle xib ility Pro c e ss fle xib ility Adva nc e d Re c yc ling e xa mple s
R E CYCL ING E XT R USION PROCE SS
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
Solid conveying Melting Material feeding Dispersive m ixing Distributive m ixing Venting Metering Good quality Fixed variation
- f the m aterial
enthalpy H
PR OCE SS E F F ICIE NCY & PR ODUCT QUAL IT Y
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2017 Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2016 Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2016
Solid c onve ying Me lting Mate r ial fe e ding Dispe r sive mixing Distr ibutive mixing Ve nting Me te r ing
Ma ximize inta ke pe rfo rma nc e Ma ximize inta ke pe rfo rma nc e Ma ximize me lting e ffic ie nc y Rig ht me lt T fo r ne xt ste p Co rre c t a g g lo me ra te / dro ple ts size Unifo rm c o mpo sitio n Co rre c t so lute final c o nc e ntra tio n Ge ne ra te P in a sho rte st a xia l le ng ht
DISPE R SIVE / DIST R IBUT IVE MIXING
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
Not mixe d Distributive mixing Dispe rsive mixing We ll mixe d Go o d she a r stra in F lo w re -o rie nta tio n Go o d she a r stre ss E no ug h lo a d time
VAR IABL E S in a R E CYCL ING E XT R USION PR OCE SS
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
A lot of variable parame te rs in a re c yc ling proc e ss!!!
Bulk de nsity o f the g rinde d po lyme r Rhe o lo g y o f the po lyme r/ s Co nta mina nts na ture a nd % All o f the m ha ve a stro ng influe nc e o n the pro c e ss pe rfo rma nc e → syste m
fle xibility is a ke y po int!
PR OCE SS PAR AME T E R S AVAIL ABL E
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
T he fo llo wing proc e ss parame te rs ne e ds to b e a da pte d to the spe c ific re c yc ling re q uire me nts:
- she ar / e longational stre sse s o n the pro duc t
- pro duc t he a ting thro ug h visc ous dissipation
- re side nc e time in the diffe re nt pro c e ss se c tio ns
T he c o -ro ta ting T SE
- ffe rs the po ssib ility to a djust the va lue s o f the a b o ve
parameters “playing” with:
- sc re w c o nfig ura tio n
- sc re w spe e d
- filling ra tio o f the sc re w (e xtrude r c a pa c ity)
- b a rre l te mpe ra ture
SHE AR / E L ONGAT IONAL ST RE SSE S
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
She a r / e lo ng a tio na l stre sse s a re influe nc ing :
- dispe rsive mixing q ua lity
- distributive mixing q ua lity
- ove r
he ating o f the pro duc t
T he sc r
e w c onfiguration & spe e d c a n a djust the inte nsity o f the the se stre sse s 2700 1/s 150 1/s 200 1/s 800 1/s
SHE AR / E L ONGAT IONAL ST RE SSE S
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
Po ssib ility to re duc e the stre ss tra nsfe rre d to the ma te ria l using spe c ial mixing
e le me nts
R E SIDE NCE T IME
tmin
σ
T
min : dispe rsive mixing inde x
σ : distributive mixing inde x
Re side nc e time in the diffe re nt sc re w e le me nts is influe nc ing :
- dispe rsive mixing q ua lity
- distributive mixing q ua lity
- ove r
he ating o f the pro duc t
T he e xtrude r
c apac ity, sc r e w c onfiguration & spe e d c a n mo dify the re side nc e
time distrib utio n c urve
R E SIDE NCE T IME sc r e w c onfigur ation
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
R E SIDE NCE T IME sc r e w c onfigur ation
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
R E SIDE NCE T IME
- pe r
ational c ondition se t-up
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
- Increasing capacity and screw speed :
1) reduces the average tr 2) makes the distribution narrower
ME L T T E MPE R AT UR E
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
HE AT ING COOL ING
ME L T T E MPE R AT UR E
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
I nflue nc e d b y the visc ous dissipation inside the pro duc t T he impa c t o f the c onduc tive he at thro ug h the b a rre l is minima l! Ma na g ing the she aring o n the po lyme r → c ontrol on the me lt te mpe rature
de ve lopme nt Sc r e w c onfiguration, sc r e w spe e d, c apac ity
Rhe o lo g y o f the re c yc le d ma te ria l is the sta rting po int fo r a fine se t-up o f the a b o ve c o nditio ns
ME L T T E MPE R AT UR E
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
PR E SE NT AT ION SCHE ME
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
I ntro duc tio n E xtrude r de sig n fle xib ility Pro c e ss fle xib ility Adva nc e d Re c yc ling e xa mple s
R E CYCL E D ADVANCE D COMPOUND E XAMPL E
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
PE T/ HDPE b le nd PE T/ PE + 15% glass fibe r
re pla c ing PA.6 + 30% g la ss fib e r
PE T/ PE + 15% glass fibe r + HF F R PE T+ T PE + 30% glass fibe r
re pla c ing PA.6 + 50% g la ss fib e r
E CO IMPAT T O pr
- je c t
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
2009 pro je c t a wa rde d a nd fina nc e d b y Re g io ne L
- mb a rdia
Gre e n de sig ning o f c o mpo site pro duc ts with the use o f he te ro g e ne o us po st c o nsume r wa ste ma te ria l I mpro ve d a ppe a l q ua lity o f the pro duc ts o pe ns ne w o ppo rtunitie s fo r a pplic a tio ns whe re a e sthe tic a spe c t is c ritic a l Sta rting ma te ria l: washe d Plast Mix (PP, L DPE , HDPE , pa pe r, me ta ls)
not-washe d PlastMix (PP, L
DPE , HDPE , PE T , PA, PVC, pa pe r, me ta ls
E CO IMPAT T O pr
- je c t
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
E COSHE E T
- PR
O pr
- je c t
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
2017 pro je c t a wa rde d a nd fina nc e d b y E uro pe a n Co mmunity HORI ZONT 2020
T AR GE T
: c r
e ate an alte r native solution to plywood starting fr
- m mixe d plastic waste
and obtain a produc t suita ble for high stre ngth applic ations in the c onstruc tion industry
Under development ………………..
ICMA & PL AST IC R E CYCL ING
Re se rve d & Co nfide ntia l - Pro pe rty o f Ic ma Sa n Gio rg io S.p.A. - 2018
L
- ng time e xpe rie nc e in pla stic re c yc ling e xtrusio n pro c e ss