Kuwonongeka kwa pulasitiki kwakhala vuto lalikulu padziko lonse lapansi, ndipo matani mamiliyoni ambiri a zinyalala za pulasitiki zimathera m'nyanja zathu, malo otayirako, ndi malo achilengedwe chaka chilichonse.Kuthana ndi vutoli kumafuna mayankho anzeru, ndipo njira imodzi yotere ndi chingwe chochapira cha PPPE.
Mzere wochapira wa PP PE ndi dongosolo lathunthu lopangidwa kuti lizibwezeretsanso ndikugwiritsanso ntchito zida zapulasitiki zomwe zimagwiritsidwa ntchito pambuyo pa ogula, makamaka polypropylene (PP) ndi polyethylene (PE).Mapulasitiki amtunduwu amagwiritsidwa ntchito kwambiri pakuyika, mabotolo, ndi zinthu zosiyanasiyana zogula, zomwe zimawapangitsa kuti azithandizira kwambiri zinyalala zapulasitiki.
Mzere wobwezeretsanso uli ndi zigawo zingapo zofunika zomwe zimagwira ntchito mogwirizana pokonza ndikusintha zinyalala zapulasitiki kukhala zida zogwiritsidwanso ntchito.Gawo loyamba limaphatikizapo njira yosankhira yomwe imalekanitsa mitundu yosiyanasiyana ya mapulasitiki kutengera kapangidwe kake ndi mtundu wake.Izi zimaonetsetsa kuti chakudya chizikhala chofanana pamagawo otsatirawa pobwezeretsanso.
Kenako, zinyalala za pulasitiki zimatsukidwa bwino.Izi zimaphatikizapo njira zingapo zoyeretsera, monga kutsuka mkangano, kutsuka madzi otentha, ndi mankhwala, kuchotsa zonyansa monga dothi, zolemba, ndi zomatira.Kuchapirako kumagwira ntchito yofunika kwambiri popanga zida zapulasitiki zobwezerezedwanso zapamwamba.
Akatsukidwa, zinyalala za pulasitiki zimadulidwa mwamakina kukhala tizidutswa tating'ono ting'ono kenako ndikudutsa mu zida zingapo, kuphatikiza granulator, friction washer, ndi centrifugal dryer.Makinawa amathandizira kuphwanya pulasitiki kukhala ma granules ndikuchotsa chinyezi chochulukirapo, kukonzekera zinthuzo pagawo lomaliza la mzere wobwezeretsanso.
Pulasitiki yopangidwa ndi granulated imasungunuka ndikutulutsidwa mu ma pellets ofananira, omwe amatha kugwiritsidwa ntchito ngati zopangira m'mafakitale osiyanasiyana.Ma pellets obwezerezedwanso awa ali ndi zinthu zofanana ndi pulasitiki ya namwali, zomwe zimawapangitsa kukhala oyenera kupanga zinthu zatsopano monga zotengera zapulasitiki, mapaipi, ndi zida zopakira.
Ubwino wogwiritsa ntchito chingwe chobwezeretsanso cha PPPE ndi chochuluka.Choyamba, zimachepetsa kwambiri kuchuluka kwa zinyalala zapulasitiki zomwe zimatha kutayira kapena kuwononga chilengedwe chathu.Pokonzanso zinthu zapulasitiki, titha kusunga zinthu zamtengo wapatali ndikuchepetsa kufunika kopanga pulasitiki watsopano.
Kuphatikiza apo, kugwiritsa ntchito pulasitiki yobwezerezedwanso kumachepetsa kutulutsa mpweya komanso kugwiritsa ntchito mphamvu zomwe zimayenderana ndi njira zopangira.Kubwezeretsanso pulasitiki kumafuna mphamvu zochepa kusiyana ndi kupanga pulasitiki ya virgin kuchokera ku mafuta oyaka, zomwe zimathandiza kuti pakhale njira yokhazikika komanso yosamalira chilengedwe.
Kuphatikiza apo, chingwe chotsuka chotsuka cha PPPE chimathandizira kupanga chuma chozungulira cha pulasitiki, pomwe zida zimagwiritsidwanso ntchito ndikusinthidwanso m'malo motayidwa.Izi zimachepetsa kufunikira kwa kupanga pulasitiki yatsopano, kusunga chuma, ndikuchepetsa kuwononga zinyalala za pulasitiki pazachilengedwe.
Pomaliza, mzere wotsuka wotsuka wa PPPE umapereka yankho lothandiza kuthana ndi vuto la zinyalala za pulasitiki padziko lonse lapansi.Pogwiritsira ntchito njira yonseyi yobwezeretsanso, tikhoza kusintha zinyalala zapulasitiki zomwe zimagwiritsidwa ntchito pambuyo pa ogula kukhala zinthu zamtengo wapatali, kuchepetsa kuwononga chilengedwe, ndikulimbikitsa njira yokhazikika yogwiritsira ntchito pulasitiki.Kulandira matekinoloje atsopano obwezeretsanso ndikofunikira kuti mukhale ndi tsogolo labwino komanso lobiriwira.
Nthawi yotumiza: Aug-01-2023