Infrared drying inogona zvakanyanyakunatsiridza kushanda kwetwin-screw extruder nekuti inoderedza kuderedzwa kweiyo IV kukosha uye inovandudza zvakanyanya kugadzikana kwemaitiro ese.
Chekutanga, iyo PET regrind ichave yakakwenenzverwa uye yakaomeswa mune angangoita 15-20 maminetsi mukati meIRD.Iyi crystallization uye kuomesa maitiro anowanikwa neakananga kupisa maitiro uchishandisa infrared radiation kuwana tembiricha ye170 ° C.Kuenzaniswa neanononoka-anopisa-mhepo masisitimu, inokurumidza uye yakananga simba yekuisa inobatsira kune yakakwana chiyero chekuchinjika zvachose kuchinjika kunyorova kukosha - infrared radiation control masisitimu anogona kupindura kuchinja kwemaitiro mumasekondi.Nenzira iyi, kukosha muhuwandu hwe5,000 kusvika 8,000 ppm mukati meIRD inoderedzwa zvakafanana kune yakasara hunyoro hwehuwandu hunosvika 150-200 ppm.
Seyechipiri mhedzisiro yeiyo crystallization process muIRD, kuwanda kwehuwandu hwezvinhu zvakapwanyika kunowedzera, kunyanya muhuremu hwakareruka.Mumamiriro ezvinhu aya:IRD inogona kuwedzera kuwanda kwehuwandu ne10% kusvika 20%, iyo inogona kuita sediki mutsauko, asi inogona kuvandudza zvakanyanya mashandiro ekudya pane extruder inlet - kunyangwe iyo extruder kumhanya inoramba yakafanana, inogona kuvandudza zvakanyanya screw yekuzadza kuita.
Seimwe nzira kune yakanyanya tembiricha crystallization uye kuomeswa masisitimu, iyo IRD system inogona zvakare kugadzirwa seyekukurumidza kuomesa kuti ishande nemazvo uye pakuomesa tembiricha iri pasi pe120 ° C.Muchiitiko ichi, hunyoro hunowanikwa huchagumira ku "chete" inenge 2,300 ppm, asi nenzira iyi inogona kuchengetedzwa nekuvimbika, kunyanya mukati mehuwandu hwehutsika hunotsanangurwa nemugadziri weextruder.Chimwe chinhu chakakosha kudzivirira kuchinjika kwepamusoro uye kwechigarire mukukosha, nekudzikiswa kwehunyoro hunosvika 0.6% iyo inoderedza zvakanyanya IV parameter mune yakanyungudutswa yepurasitiki zvinhu.Nguva yekugara muomesi inogona kudzikiswa kusvika 8.5 maminetsi uye simba rekushandisa riri pasi pe80 W / kg / h.
Nguva yekutumira: Feb-24-2022