Infrared ihicha nwere ike budatamelite arụmọrụ nke ejima-screw extruder n'ihi na ọ na-ebelata mmebi nke uru IV ma na-eme ka nkwụsi ike nke usoro ahụ dum dịkwuo mma.
Nke mbụ, PET regrind ga-abụ crystallized na akpọnwụ ya n'ime ihe dịka nkeji 15-20 n'ime IRD. Nke a na-enweta kristal na ihicha usoro site na usoro kpo oku kpọmkwem site na iji radieshon infrared iji nweta okpomọkụ ihe onwunwe nke 170 Celsius. E jiri ya tụnyere sistemụ ikuku na-ekpo ọkụ, ngwa ngwa na ntinye ike ozugbo na-enye aka na nguzozi zuru oke nke ụkpụrụ mmiri na-agbanwe agbanwe na-adịgide adịgide - sistemu njikwa radieshon infrared nwere ike ịzaghachi ọnọdụ usoro mgbanwe na sekọnd. N'ụzọ dị otú a, uru dị na nso nke 5,000 ruo 8,000 ppm n'ime IRD na-ebelata n'otu n'otu ka ọ bụrụ ọdịnaya mmiri fọdụrụnụ nke ihe dịka 150-200 ppm.
Dị ka mmetụta nke abụọ nke usoro kristal na IRD, nnukwu njupụta nke ihe a gwepịara egwepịa na-abawanye, karịsịa na flakes dị arọ. N'ọnọdụ a:IRD nwere ike ịbawanye njupụta buru ibu site na 10% ruo 20%, nke nwere ike iyi obere ihe dị iche, mana ọ nwere ike imeziwanye arụmọrụ ndepụta na ntinye nke extruder - ọ bụ ezie na ọsọ extruder ka dị otu, ọ nwere ike melite arụmọrụ ndochi.
Dị ka ihe ọzọ na elu okpomọkụ crystallization na ihicha usoro, IRD usoro nwekwara ike e mere ka a ngwa ngwa draya na-arụ ọrụ nke ọma na na ihicha okpomọkụ n'okpuru 120 Celsius C. N'okwu a, ọdịnaya mmiri a ga-enweta ga-ejedebe na "naanị" ihe dị ka 2,300 ppm, mana n'ụzọ dị otú a, enwere ike idobe ya nke ọma, karịsịa n'ime oke ụkpụrụ nke onye nrụpụta extruder kwuru. Ihe ọzọ dị mkpa bụ izere mgbanwe dị elu na nke na-adịgide adịgide na uru ahụ, yana mbelata ọdịnaya mmiri ruru 0.6% nke ga-ebelata oke IV n'ime ihe plastik a wụrụ awụ. Enwere ike belata oge obibi na draya na nkeji 8.5 na ike oriri na-erughị 80 W / kg / h.
Oge nzipu: Feb-24-2022