PET (polyethylene terephthalate) shine polymer thermoplastic da aka yi amfani da shi sosai don aikace-aikace daban-daban, kamar marufi, yadi, da injiniyanci.PET yana da ingantattun kayan inji, thermal, da kayan gani, kuma ana iya sake yin fa'ida da sake amfani da su don sabbin samfura.Duk da haka, PET kuma kayan aikin hygroscopic ne, wanda ke nufin yana shayar da danshi daga muhalli, kuma wannan zai iya rinjayar ingancinsa da aikinsa.Danshi a cikin PET zai iya haifar da hydrolysis, wanda shine halayen sinadarai wanda ke rushe sarƙoƙi na polymer kuma yana rage danko na ciki (IV) na kayan.IV shine ma'auni na nauyin kwayoyin halitta da kuma digiri na polymerization na PET, kuma yana da mahimmancin alamar ƙarfi, taurin kai, da aiwatar da kayan aiki.Sabili da haka, yana da mahimmanci don bushewa da crystallize PET kafin extrusion, don cire danshi da hana asarar IV.
Infrared crystal bushewa PET Granulationwani sabon labari ne kuma sabuwar fasaha wacce ke amfani da hasken infrared (IR) don bushewa da sanya flakes na PET a cikin mataki ɗaya, kafin ciyar da su zuwa ga masu fitar da su don ƙarin sarrafawa.Hasken IR wani nau'i ne na radiation na lantarki wanda ke da tsayin daka tsakanin 0.7 da 1000 microns, kuma PET da kwayoyin ruwa za su iya shafe su, yana sa su girgiza da kuma haifar da zafi.Hasken IR zai iya shiga cikin ɓangarorin PET kuma ya dumama su daga ciki, yana haifar da bushewa da sauri da inganci fiye da hanyoyin al'ada, kamar iska mai zafi ko bushewa.
Infrared crystal dryer PET Granulation yana da fa'idodi da yawa akan bushewar gargajiya da hanyoyin crystallization, kamar:
• Rage bushewa da lokacin ƙirƙira: Hasken IR na iya bushewa kuma ya sanya flakes PET a cikin mintuna 20, idan aka kwatanta da sa'o'i da yawa da ake buƙata ta hanyoyin al'ada.
• Rage yawan amfani da makamashi: Hasken IR na iya bushewa da kuma sanya kullun PET tare da amfani da makamashi na 0.08 kWh / kg, idan aka kwatanta da 0.2 zuwa 0.4 kWh / kg da ake bukata ta hanyar al'ada.
• Rage abun ciki na danshi: Hasken IR na iya bushewa kuma ya sanya flakes na PET zuwa wani ɗanshi na ƙarshe na ƙasa da 50 ppm, idan aka kwatanta da 100 zuwa 200 ppm da aka samu ta hanyoyin al'ada.
• Rage asarar IV: Hasken IR na iya bushewa kuma ya sanya flakes PET tare da ƙarancin asarar IV na 0.05, idan aka kwatanta da 0.1 zuwa 0.2 IV asarar lalacewa ta hanyar hanyoyin al'ada.
• Ƙara yawan girma: Hasken IR na iya ƙara yawan adadin PET flakes da 10 zuwa 20%, idan aka kwatanta da asali na asali, wanda ya inganta aikin ciyarwa da fitarwa na extruder.
• Ingantattun ingancin samfur: Hasken IR na iya bushewa da yayyafa flakes na PET ba tare da haifar da launin rawaya, lalacewa, ko gurɓata ba, wanda ke haɓaka bayyanar da kaddarorin samfuran ƙarshe.
Tare da waɗannan abũbuwan amfãni, Infrared crystal bushewa PET Granulation iya inganta yadda ya dace da ingancin PET extrusion, kuma zai iya saduwa da bukatun na abinci-sa aikace-aikace.
Ana iya raba tsarin bushewar infrared crystal PET Granulation zuwa manyan matakai guda uku: ciyarwa, bushewa da crystallizing, da extruding.
Ciyarwa
Matakin farko na busar da infrared crystal PET Granulation yana ciyarwa.A cikin wannan mataki, ana ciyar da flakes na PET, waɗanda zasu iya zama budurwa ko sake yin fa'ida, a cikin na'urar bushewa ta screw feeder ko hopper.Filayen PET na iya samun abun ciki na danshi na farko har zuwa 10,000 zuwa 13,000 ppm, ya danganta da tushen da yanayin ajiya.Adadin ciyarwa da daidaito sune mahimman abubuwan da ke shafar bushewa da aikin ƙirƙira da ingancin samfur.
Bushewa da Crystallizing
Mataki na biyu na busar da infrared crystal PET Granulation yana bushewa da crystallizing.A cikin wannan matakin, ɓangarorin PET suna fallasa ga hasken IR a cikin ganga mai jujjuya, wanda ke da tashar karkace da paddles a ciki.Hasken IR yana haskakawa ta wani banki na tsaye na IR emitters, waɗanda ke tsakiyar drum.Hasken IR yana da tsayin raƙuman ruwa na 1 zuwa 2 microns, wanda aka daidaita shi zuwa nau'in nau'in PET da ruwa, kuma yana iya shiga har zuwa mm 5 cikin filayen PET.Hasken IR yana dumama flakes na PET daga ciki, yana haifar da ƙwayoyin ruwa don ƙafe da ƙwayoyin PET don girgiza su sake tsarawa cikin tsarin crystalline.Ana cire tururin ruwa ta hanyar wani rafi na iska, wanda ke gudana ta cikin ganga kuma yana ɗaukar danshin.Tashar karkace da paddles suna isar da ɓangarorin PET tare da axis na drum, suna tabbatar da daidaituwa da bayyanar kamanni ga hasken IR.Tsarin bushewa da crystallizing yana ɗaukar kusan mintuna 20, kuma yana haifar da abun ciki na ƙarshe na danshi na ƙasa da 50 ppm da ƙarancin asarar IV na 0.05.Tsarin bushewa da ƙirƙira shima yana ƙara ɗimbin yawa na flakes PET da 10 zuwa 20%, kuma yana hana rawaya da lalata kayan.
Fitarwa
Mataki na uku kuma na ƙarshe na Infrared crystal dryer PET Granulation yana extruding.A cikin wannan mataki, ana ciyar da busassun busassun PET flakes zuwa ga mai fitar da su, wanda ke narkewa, ya daidaita, kuma ya siffata kayan zuwa samfuran da ake so, kamar pellets, filaye, fina-finai, ko kwalabe.Extruder na iya zama nau'in dunƙule guda ɗaya ko nau'in tagwaye, dangane da ƙayyadaddun samfur da abubuwan da ake amfani da su.Hakanan za'a iya sanye da mai fitar da iska mai huɗa, wanda zai iya cire duk wani ɗanshi da ya rage daga narke.Tsarin extruding yana tasiri da saurin dunƙulewa, daidaitawar dunƙule, zafin ganga, mutun lissafi, da narke rheology.Dole ne a inganta aikin fiddawa don cimma santsi da tsayayyen extrusion, ba tare da lahani ba, kamar narke karye, kumbura, ko rashin kwanciyar hankali.Hakanan za'a iya bin tsarin extruding ta hanyar bayan magani, kamar sanyaya, yanke, ko tattarawa, dangane da nau'in samfurin da kayan aikin ƙasa.
Kammalawa
Infrared crystal dryer PET Granulation wani labari ne kuma sabuwar fasaha wacce ke amfani da hasken IR don bushewa da kristal PET flakes a mataki ɗaya, kafin ciyar da su ga masu fitar da su don ƙarin sarrafawa.Wannan fasaha na iya inganta inganci da ingancin extrusion PET, ta hanyar rage lokacin bushewa da crystallization, yawan amfani da makamashi, abun ciki na danshi, da asarar IV, kuma ta hanyar ƙara yawan girma da ingancin samfurin.Hakanan wannan fasaha na iya biyan buƙatun aikace-aikacen matakin abinci, ta hanyar adana IV da hana launin rawaya da lalata PET.Wannan fasaha na iya ba da gudummawa ga dorewa da tattalin arziƙin madauwari na PET, ta hanyar ba da damar sake yin amfani da PET don sabbin samfura.
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Lokacin aikawa: Janairu-25-2024