PET (polyethylene terephthalate) bụ polymer thermoplastic a na-ejikarị eme ihe maka ngwa dị iche iche, dị ka nkwakọ, textiles na engineering.PET nwere ezigbo igwe, thermal, na ngwa anya, enwere ike megharịa ya ma jiri ya mee ihe maka ngwaahịa ọhụrụ.Otú ọ dị, PET bụkwa ihe hygroscopic, nke pụtara na ọ na-amịkọrọ mmiri sitere na gburugburu ebe obibi, nke a nwere ike imetụta àgwà ya na arụmọrụ ya.Mmiri dị na PET nwere ike ime ka hydrolysis, nke bụ mmeghachi omume kemịkalụ nke na-agbaji ụdọ polymer ma na-ebelata viscosity intrinsic (IV) nke ihe.IV bụ ihe nleba anya nke ịdị arọ molekụla na ogo nke polymerization nke PET, ọ bụkwa ihe dị mkpa na-egosi ike, isi ike, na nhazi nke ihe.Ya mere, ọ dị mkpa iji kpoo PET na crystallize tupu extrusion, wepụ mmiri mmiri ma gbochie ọnwụ nke IV.
Infrared crystal dryer PET granulationbụ ihe ọhụrụ na teknụzụ ọhụrụ nke na-eji ọkụ infrared (IR) mee ka ọ kpoo ma kpochaa flakes PET n'otu nzọụkwụ, tupu ịnye ha nri na extruder maka nhazi ọzọ.Ìhè IR bụ ụdị radieshon electromagnetic nke nwere ogologo ebili mmiri n'etiti 0.7 na 1000 microns, yana PET na ụmụ irighiri mmiri nwere ike itinye ya n'ahụ, na-eme ka ha maa jijiji wee mepụta okpomọkụ.Ìhè IR nwere ike banye n'ime flakes PET wee kpoo ha n'ime, na-ebute ihicha ngwa ngwa na ịrụ ọrụ nke ọma karịa usoro ndị a na-emekarị, dị ka ikuku na-ekpo ọkụ ma ọ bụ ikpo ọkụ.
Infrared crystal dryer PET Granulation nwere ọtụtụ uru karịa ihicha ọdịnala na ụzọ kristal, dị ka:
• Mbelata ihicha na oge kristal: Igwe ọkụ IR nwere ike kpoo ma mee ka flakes PET kristal n'ime nkeji 20, ma e jiri ya tụnyere ọtụtụ awa achọrọ site na usoro omenala.
• Mbelata ume ike: Ìhè IR nwere ike ihicha ma kpoo PET flakes na ike ike nke 0.08 kWh / kg, ma e jiri ya tụnyere 0.2 na 0.4 kWh / kg chọrọ site na usoro omenala.
• Mbelata ọdịnaya mmiri: Ìhè IR nwere ike ihicha ma mee ka flakes PET mee ka ọ bụrụ ọdịnaya mmiri ikpeazụ nke na-erughị 50 ppm, ma e jiri ya tụnyere 100 ruo 200 ppm enwetara site na usoro omenala.
• Mbelata IV ọnwụ: Ìhè IR nwere ike ihicha ma mee ka flakes PET dị ntakịrị na obere mfu IV nke 0.05, ma e jiri ya tụnyere 0.1 ruo 0.2 IV ọnwụ kpatara site na usoro omenala.
• Ịba ụba njupụta nke ukwuu: ọkụ IR nwere ike ịbawanye njupụta nke PET flakes site na 10 ruo 20%, ma e jiri ya tụnyere nke mbụ, nke na-eme ka ọrụ nri na mmepụta nke extruder dịkwuo mma.
• Mma ngwaahịa mma: Ìhè IR nwere ike ihicha ma kpochaa flakes PET na-eme ka ọ ghara ịdị na-acha odo odo, mmebi, ma ọ bụ mmetọ, nke na-eme ka ọdịdị ahụ dịkwuo mma na njirimara nke ngwaahịa ikpeazụ.
Site na uru ndị a, onye na-ehicha kristal infrared PET Granulation nwere ike imeziwanye arụmọrụ na ịdị mma nke extrusion PET, ma nwee ike izute ihe achọrọ nke ngwa nri.
Enwere ike ikewa usoro nke igwe nkụ infrared kristal PET Granulation n'ime usoro atọ bụ isi: nri, ihicha na kristal, na extruding.
Nri
Nzọụkwụ mbụ nke infrared crystal dryer PET Granulation na-eri nri.N'ime usoro a, a na-enyefe flakes PET, nke nwere ike ịbụ nwa agbọghọ na-amaghị nwoke ma ọ bụ megharịa ya, n'ime igwe nkụ nke IR site na screw feeder ma ọ bụ hopper.Fleke PET nwere ike ịnwe ọdịnaya mmiri mbụ ruru 10,000 ruo 13,000 ppm, dabere na isi mmalite yana ọnọdụ nchekwa.Ọnụego nri na izi ezi bụ ihe dị mkpa na-emetụta ihicha na ịrụ ọrụ kristal na àgwà ngwaahịa.
ihicha na crystallizing
Nzọụkwụ nke abụọ nke infrared crystal dryer PET Granulation bụ ihicha na crystallizing.N'ime usoro a, a na-ekpughere flakes PET na ọkụ IR n'ime drum na-atụgharị, nke nwere ọwa gburugburu na paddles n'ime ime ya.A na-ebunye ọkụ IR site na ụlọ akụ IR emitters guzoro, nke dị n'etiti etiti ahụ.Ìhè IR nwere ogologo ebili mmiri nke 1 ruo 2 microns, bụ nke a na-ege ntị na ụdị mmịpụta nke PET na mmiri, ma nwee ike ịbanye ruo 5 mm n'ime flakes PET.Ìhè IR na-eme ka flakes PET dị n'ime, na-eme ka ụmụ irighiri mmiri pụta na ụmụ irighiri ihe PET na-ama jijiji ma gbanwee n'ime usoro kristal.A na-ewepụ uzuoku mmiri site na iyi nke ikuku gburugburu, nke na-asọfe na drum ma buru mmiri ahụ pụọ.Ọwa okirikiri na paddles na-ebufe flakes PET n'akụkụ axis nke drum ahụ, na-eme ka n'otu n'otu na mkpughe nke ọkụ IR.Usoro ihicha na kristal na-ewe ihe dị ka nkeji 20, na-ebute oke mmiri ikpeazụ nke na-erughị 50 ppm yana obere mfu IV nke 0.05.Usoro ihicha na kristal na-abawanye njupụta nke flakes PET site na 10 ruo 20%, ma na-egbochi ịcha edo na mmebi nke ihe.
Na-apụ apụ
Nzọụkwụ nke atọ na nke ikpeazụ nke infrared crystal dryer PET Granulation na-apụ apụ.N'ime usoro a, a na-enyefe flakes PET a mịrị amị na crystallized na onye na-apụ apụ, nke na-agbaze, na-emekọ ọnụ, ma na-akpụzi ihe ahụ ka ọ bụrụ ngwaahịa a chọrọ, dị ka pellets, fibers, film, ma ọ bụ karama.Onye na-apụ apụ nwere ike ịbụ otu-skru ma ọ bụ ụdị ejima, dabere na nkọwa ngwaahịa na ihe mgbakwunye eji.Enwere ike ijikwa ikuku na-ekpo ọkụ, nke nwere ike wepu mmiri ọ bụla fọdụrụnụ ma ọ bụ ihe na-agbanwe agbanwe na agbaze.Usoro nke extruding na-emetụta ọsọ nke ịghasa, nhazi screw, okpomọkụ barrel, die geometry, na gbazee rheology.A ghaghị imeziwanye usoro mkpochapụ ahụ iji nweta extrusion dị nro ma kwụsie ike, na-enweghị ntụpọ, dị ka mgbaji agbaze, ịnwụ zaa, ma ọ bụ enweghị nkwụsi ike.Usoro nke extruding nwekwara ike soro usoro ọgwụgwọ post-ọgwụgwọ, dị ka jụrụ oyi, ịkpụ, ma ọ bụ ịnakọta, dabere na ụdị ngwaahịa na akụrụngwa ala.
Mmechi
Infrared crystal dryer PET Granulation bụ akwụkwọ akụkọ na teknụzụ ọhụrụ nke na-eji ọkụ IR kpoo ma kpochaa flakes PET n'otu nzọụkwụ, tupu inye ha nri na extruder maka nhazi ọzọ.Teknụzụ a nwere ike imeziwanye arụmọrụ na ịdị mma nke extrusion PET, site na ibelata oge ihicha na kristal, oriri ike, ọdịnaya mmiri, na mfu IV, yana site n'ịba ụba njupụta na ogo ngwaahịa.Teknụzụ a nwekwara ike imezu ihe achọrọ maka ngwa ọkwa nri, site na ichekwa IV na igbochi ịcha edo na mmebi nke PET.Nkà na ụzụ a nwere ike inye aka na nkwado na akụ na ụba okirikiri nke PET, site n'ịkwaliteghachi na iji PET maka ngwaahịa ọhụrụ.
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Oge nzipu: Jan-25-2024