PET (polyethylene terephthalate) ni polymer ikoreshwa cyane ya polimoplastique ya porogaramu zitandukanye, nko gupakira, imyenda, hamwe nubuhanga. PET ifite ibikoresho byiza bya mashini, ubushyuhe, na optique, kandi birashobora gukoreshwa kandi bigakoreshwa kubicuruzwa bishya. Nyamara, PET nayo ni ibikoresho bya hygroscopique, bivuze ko ikuramo ubuhehere buturuka ku bidukikije, kandi ibyo birashobora kugira ingaruka ku bwiza no ku mikorere. Ubushuhe muri PET burashobora gutera hydrolysis, nigisubizo cyimiti isenya iminyururu ya polymer kandi igabanya ubwiza bwimbere (IV) bwibintu. IV ni igipimo cy'uburemere bwa molekuline n'urwego rwa polymerisation ya PET, kandi ni ikimenyetso cy'ingenzi cyerekana imbaraga, gukomera, no gutunganya ibintu. Niyo mpamvu, ni ngombwa gukama no gutegera PET mbere yo kuyikuramo, gukuraho ubuhehere no kwirinda gutakaza IV.
Infrared kristal yumye PET Granulationni ubuhanga bushya kandi bushya bukoresha urumuri rwa infragre (IR) kugirango rwume kandi rutobore flake ya PET mu ntambwe imwe, mbere yo kuzigaburira extruder kugirango irusheho gutunganywa. Itara rya IR ni uburyo bwimirasire ya electromagnetique ifite uburebure buri hagati ya microni 0.7 na 1000, kandi irashobora kwinjizwa na PET na molekile zamazi, bigatuma zinyeganyega kandi zikabyara ubushyuhe. Itara rya IR rirashobora kwinjira muri flake ya PET hanyuma ikabashyushya imbere, bikavamo kwihuta kandi neza kwumisha no korohereza ibintu kuruta uburyo busanzwe, nkumuyaga ushushe cyangwa gukama vacuum.
Infrared kristal yumye PET Granulation ifite ibyiza byinshi muburyo bwo gukama gakondo hamwe na kristu, nka:
Kugabanya igihe cyo kumisha no gutegera: Itara rya IR rirashobora gukama no gutobora flake ya PET muminota 20, ugereranije namasaha menshi asabwa muburyo busanzwe.
• Kugabanya gukoresha ingufu: Itara rya IR rirashobora gukama no gutobora flake ya PET hamwe ningufu zingana na 0.08 kWh / kg, ugereranije na 0.2 kugeza 0.4 kWh / kg bisabwa muburyo busanzwe.
• Kugabanya ibirimo ubuhehere: Itara rya IR rirashobora gukama no gutondekanya ibice bya PET kugeza kubushuhe bwa nyuma butarenze 50 ppm, ugereranije na 100 kugeza 200 ppm byagezweho muburyo busanzwe.
• Kugabanya igihombo cya IV: Itara rya IR rirashobora gukama no gutobora flake ya PET hamwe nigihombo gito cya IV cya 0.05, ugereranije nigihombo 0.1 kugeza 0.2 IV cyatewe nuburyo busanzwe.
• Kwiyongera k'ubucucike bwinshi: Itara rya IR rishobora kongera ubwinshi bwa flake ya PET ku gipimo cya 10 kugeza kuri 20%, ugereranije n'ubucucike bw'umwimerere, butezimbere imikorere y'ibiryo n'ibisohoka muri extruder.
• Kunoza ubuziranenge bwibicuruzwa: Itara rya IR rirashobora gukama no gutobora flake ya PET idateye umuhondo, kwangirika, cyangwa kwanduza, byongera isura nibiranga ibicuruzwa byanyuma.
Hamwe nibyiza, Infrared kristal yumye PET Granulation irashobora kunoza imikorere nubwiza bwa PET ikuramo, kandi irashobora kuzuza ibisabwa mubisabwa murwego rwo kurya.
Inzira ya Infrared kristal yumye PET Granulation irashobora kugabanywamo intambwe eshatu zingenzi: kugaburira, kumisha no korohereza, no gusohora.
Kugaburira
Intambwe yambere ya Infrared kristal yumye PET Granulation ni kugaburira. Muri iyi ntambwe, flake ya PET, ishobora kuba isugi cyangwa iyongera gukoreshwa, igaburirwa mumashanyarazi ya IR nigaburo rya screw cyangwa hopper. PET flake irashobora kugira ubushuhe bwambere bugera ku 10,000 kugeza 13.000 ppm, bitewe ninkomoko nububiko. Igipimo cyo kugaburira no kwizerwa ni ibintu byingenzi bigira ingaruka kumisha no korohereza ibicuruzwa hamwe nubwiza bwibicuruzwa.
Kuma no korohereza
Intambwe ya kabiri ya Infrared kristal yumye PET Granulation iruma kandi ikabura. Muri iyi ntambwe, flake ya PET ihura nurumuri rwa IR imbere yingoma izunguruka, ifite umuyoboro uzenguruka hamwe na padi imbere. Itara rya IR ritangwa na banki ihagaze y’ibyuka bya IR, biherereye hagati yingoma. Itara rya IR rifite uburebure bwa microne 1 kugeza kuri 2, ihujwe no kwinjiza ibintu bya PET n'amazi, kandi irashobora kwinjira muri mm 5 muri flake ya PET. Itara rya IR rishyushya ibice bya PET biva imbere, bigatuma molekile zamazi zishira hamwe na molekile ya PET ihinda umushyitsi kandi igahinduka muburyo bwa kristu. Umwuka wamazi ukurwaho numugezi wumwuka w ibidukikije, unyura mungoma kandi ugatwara ubuhehere. Umuyoboro uzenguruka hamwe na paddles byerekana ibice bya PET kumurongo wingoma, byemeza ko bahuje urumuri rwa IR. Uburyo bwo kumisha no korohereza ibintu bifata iminota igera kuri 20, kandi bikavamo ubushuhe bwanyuma butarenze 50 ppm hamwe no gutakaza IV byibuze 0.05. Uburyo bwo kumisha no korohereza ibintu kandi byongera ubwinshi bwibice bya PET ku 10 kugeza kuri 20%, kandi bikarinda umuhondo no kwangirika kwibintu.
Kurenza urugero
Intambwe ya gatatu kandi yanyuma ya Infrared kristal yumye PET Granulation irasohoka. Muri iyi ntambwe, ibishishwa byumye kandi byumye bya PET bigaburirwa extruder, ishonga, igahuza abantu, kandi igahindura ibikoresho mubicuruzwa byifuzwa, nka pellet, fibre, firime, cyangwa amacupa. Extruder irashobora kuba umugozi umwe cyangwa ubwoko bwimpanga, ukurikije ibicuruzwa nibisobanuro byongeweho. Extruder irashobora kandi kuba ifite umuyaga wa vacuum, ushobora kuvanaho ubushuhe ubwo aribwo bwose busigaye cyangwa ibinyabuzima bihinduka. Igikorwa cyo gusohora giterwa numuvuduko wa screw, iboneza rya screw, ubushyuhe bwa barrale, bipfa geometrie, hamwe na rheologiya. Inzira yo gusohora igomba kuba nziza kugirango igere ku buryo bworoshye kandi butajegajega, nta nenge, nko kuvunika gushonga, gupfa kubyimba, cyangwa guhungabana kurwego. Igikorwa cyo gusohora gishobora kandi gukurikirwa nuburyo nyuma yubuvuzi, nko gukonjesha, gukata, cyangwa gukusanya, bitewe nubwoko bwibicuruzwa nibikoresho byo hasi.
Umwanzuro
Infrared kristal yumye PET Granulation nubuhanga bushya kandi bushya bukoresha urumuri rwa IR kugirango rwume kandi rutobore flake ya PET mu ntambwe imwe, mbere yo kuyigaburira kuri extruder kugirango ikorwe neza. Iri koranabuhanga rirashobora kunoza imikorere nubwiza bwa PET yo gukuramo, mukugabanya igihe cyo kumisha no gutegera, gukoresha ingufu, ibirimo ubuhehere, hamwe nigihombo cya IV, no kongera ubwinshi nubwinshi bwibicuruzwa. Iri koranabuhanga rirashobora kandi kuzuza ibisabwa mubisabwa mu rwego rwibiryo, mukuzigama IV no gukumira umuhondo no kwangirika kwa PET. Iri koranabuhanga rirashobora kugira uruhare mu buryo burambye n’ubukungu buzenguruka bwa PET, mu gufasha gutunganya no gukoresha PET ku bicuruzwa bishya.
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