Infrared Crystal tshuab ziab khaub ncaws rau R-PET Pelletizing / Extrusion Kab
Infrared Pre-Drying ntawm PET Flakes: Ua kom tso zis ntau ntxiv thiab txhim kho qhov zoo ntawm PET Extruders
> > Reprocessing cov flakes nyob rau hauv lub extruder txo IV vim hydrolysis thiab muaj dej,thiab yog vim li cas ua ntej ziab mus rau homogeneous ziab theem nrog peb IRD System tuaj yeem txo qhov kev txo qis no. Ntxiv mus, cov resin tsis daj vim tias lub sij hawm ziab kom qhuav (Lub sij hawm ziab tsuas yog xav tau 15-20mins, qhov kawg noo noo tuaj yeem ua tau≤ 50ppm, kev siv hluav taws xob tsawg dua 80W / KG / H), thiab shearing nyob rau hauv lub extruder yog li txo vim hais tias cov khoom preheated nkag mus rau hauv lub extruder ntawm qhov kub thiab txias "
>> Hauv thawj kauj ruam, PET regrind yog crystallized thiab qhuav hauv IRD hauv ib lub sijhawm kwv yees li 15 feeb. Cov txheej txheem crystallization thiab ziab ziab no yog ua tiav los ntawm cov txheej txheem hluav taws xob ncaj qha siv hluav taws xob Infrared, kom ua tiav cov khoom kub ntawm 170˚C. Nyob rau hauv qhov sib piv rau cov cua kub qeeb qeeb, lub zog ceev thiab ncaj qha tawm tswv yim ua kom muaj txiaj ntsig zoo tshaj plaws ntawm kev hloov pauv mus tas li ntawm cov tswv yim noo noo - kev tswj hwm ntawm IR hluav taws xob tso cai teb rau cov txheej txheem hloov pauv hauv vib nas this. Nyob rau hauv txoj kev no, qhov tseem ceeb ntawm 5,000 thiab 8,000 ppm raug txo kom sib npaug hauv IRD mus rau qhov seem noo noo ntawm 30-50ppm.
> >Raws li cov nyhuv thib ob ntawm cov txheej txheem crystallization hauv IRD, qhov ntom ntom ntawm cov khoom hauv av nce,tshwj xeeb tshaj yog nyob rau hauv heev light-weight flakes. Qhov kev cuam tshuam thib ob no yog qhov nthuav tawm tsam keeb kwm yav dhau los uas qhov nyiam ntawm cov fwj nyias-walled tiv thaiv cov khoom siv rov ua dua los ntawm kev ua tiav qhov ntom ntom ntawm> 0.3 kg / dm³. Kev nce ntawm qhov ntom ntom ntawm 10 mus rau 20% tuaj yeem ua tiav hauv IRD, uas zoo li tsis tseem ceeb thaum pom thawj zaug, tab sis txhim kho cov kev ua tau zoo ntawm cov extruder inlet ntau heev - thaum lub extruder ceev tseem tsis hloov, muaj kev txhim kho loj heev. filling kev ua tau zoo ntawm cov ntsia hlau.
Post lub sij hawm: Apr-07-2023