Umshini wepulasitiki wokugoqa iyisisetshenziswa esisetshenziswa ukuguqula izinto zepulasitiki zibe ama-granules

Umshini wepulasitiki wokugoqa iyisisetshenziswa esisetshenziswa ukuguqula izinto zepulasitiki zibe ama-granules. Nakhu ukubukeka okunemininingwane eyengeziwe:

1. Izingxenye Eziyisisekelo kanye Nemisebenzi Yazo

I-Hopper: I-hopper ingxenye lapho kulayishwa khona izinto zokusetshenziswa zepulasitiki. Ingabamba izinhlobo ezahlukene zepulasitiki njengama-pellets, ama-flakes, noma ama-powder. Usayizi we-hopper uyahlukahluka kuye ngokuthi umthamo womshini kanye nezidingo zokukhiqiza.

Isikulufu kanye neSistimu Yemigqomo

Isikulufu: Isikulufu siyingxenye ebalulekile ezungeza ngaphakathi kombhobho. Inezindawo ezihlukene, okuhlanganisa indawo yokudla, indawo yokucindezela, nendawo yokulinganisa. Endaweni yokudla, idonsa izinto zepulasitiki kusuka ku-hopper. Njengoba ipulasitiki ihamba ngesikulufu endaweni yokucindezela, umthamo otholakalayo wepulasitiki uyancipha, okubangela ukwanda kokucindezela. Lokhu kucindezela kuyasiza enqubweni yokuncibilika. Endaweni yokukala amamitha, ipulasitiki encibilikisiwe isuke iphushelwa phambili ngenani elingaguquki.

Umgqomo: Umphongolo uzungeza isikulufu futhi uhlinzeka ngegumbi ukuze upulasitiki ucutshungulwe. Ifakwe izinto zokushisa, ngokuvamile ngendlela yamabhande okushisa kagesi noma ama-cartridges. Lezi zakhi zokushisa zingashisa umgqomo ekushiseni okudingekile ukuze kuncibilike ipulasitiki. Umphongolo ubuye ube nezinzwa zokushisa zokuqapha nokulawula izinga lokushisa ngokunembile.

I-Die Plate: Ipuleti lokufa litholakala ekugcineni komgqomo. Inezimbobo ezincane eziningi lapho ipulasitiki encibilikisiwe ikhishwa khona. Ubukhulu kanye nokuma kwezimbobo kunquma ukuma nobukhulu bezintambo zokuqala zepulasitiki ezizokwakhiwa.

Iyunithi ye-Pelletizer

Imimese Yokusika: I-pelletizer ngokuvamile iqukethe imimese eyodwa noma ngaphezulu ezungezayo. Le mimese isika imicu yepulasitiki ekhishiwe ibe ama-granules. Isivinini sokuzungezisa ummese kanye nesivinini sokukhipha ipulasitiki sinquma usayizi nokuma kwama-granules. Amanye ama-pellets anezilungiselelo zommese ezilungisekayo ukukhiqiza ama-granules anobude obuhlukile.

I-Drive System: I-pelletizer iqhutshwa injini kagesi noma eminye imithombo yamandla. Isistimu yokushayela idinga ukunikeza isivinini sokuzungeza esingaguquki nesithembekile ukuze kuqinisekiswe ukufana kwama-granules.

2. Inqubo Yokusebenza

Ukondla: Izinto zepulasitiki zifakwa ku-hopper. Isikulufu sibe sesiqala ukuzungezisa futhi sidonsela okokusebenza emgqonyeni.

Ukuncibilika: Njengoba ipulasitiki ihamba emgqonyeni, ukushisa okuvela ezintweni zokushisisa kanye nesenzo sokugunda isikulufu kubangela ukuba ipulasitiki inyibilike. Izinga lokushisa lilawulwa ngokucophelela ukuze kuqinisekiswe ukuthi ipulasitiki ifinyelela esimweni sayo sokuncibilika esifanele. Amapulasitiki ahlukene anamaphuzu ahlukene okuncibilika kanye nezakhiwo ze-rheological, ngakho-ke izinga lokushisa kanye nezilungiselelo zesivinini sesikulufa zidinga ukulungiswa ngokufanele. Isibonelo, i-polystyrene incibilika cishe ku-100 - 120°C, kuyilapho i-polycarbonate incibilika ekushiseni okuphezulu, okungaba ngu-220 - 250°C.

I-Extrusion: Ipulasitiki encibilikisiwe iphoqelelwa ngepuleti le-die, yakhe imicu emide. Le micu ibe isiyiswa ku-pelletizer.

I-Granulation: Imimese ejikelezayo ye-pelletizer isika imicu ibe yizinhlamvana zosayizi oyifunayo. Ama-granules abe eseqoqwa futhi angaphinde acutshungulwe noma ahlanganiswe.

3. Izinhlobo Zemitshina Yezimbotshana Zepulasitiki

Imishini Eyodwa - Yezikulufu Yokumboza:

Lezi izinhlobo ezivame kakhulu. Anesikulufu esisodwa esizungeza ngaphakathi komgqomo. Zilula kakhulu ekwakhiweni futhi zifanele uhla olubanzi lwamapulasitiki. Asebenza kahle ekucubunguleni amapulasitiki anezici ezinhle zokugeleza futhi abiza kakhulu - asebenza kahle ekukhiqizeni okuncane - kuya - kwesikali esimaphakathi.

I-Twin - Imishini Yokukulungela Yezikulufu:

Imishini ye-screw granulating ephindwe kabili - inezikulufu ezimbili ezihlanganayo noma ezihambisanayo. Izikulufu zingazungeza ziye ohlangothini olufanayo (co - zungezisa) noma ngezindlela eziphambene (ikhawunta - iyazungezisa). Le mishini inikezela ngamakhono angcono okuxuba nokuhlanganisa kunemishini yesikulufu eyodwa. Avame ukusetshenziselwa ukucubungula amapulasitiki adinga ukwakheka okuyinkimbinkimbi, okufana namapulasitiki agcwalisiwe (anezithasiselo ezifana nama-filler, ama-reinforcement, noma ama-colorants) noma ukuhlanganisa izinhlobo ezahlukene zamapulasitiki ndawonye. Idizayini yesikulufu esingamawele ivumela ukulawula okunembe kakhudlwana phezu kwezinqubo zokuncibilika, ukuxubana, kanye ne-extrusion.

4. Izicelo

Ukugaywa kabusha kwePlastiki: Enqubweni yokugaywa kabusha, amapulasitiki alahlwayo ayagaywa ukuze afaneleke ukuphinda asetshenziswe. Isibonelo, amabhodlela epulasitiki agaywe kabusha angenziwa imbudumbudu bese asetshenziselwe ukukhiqiza imikhiqizo emisha yepulasitiki njengamapulangwe epulasitiki, amabhentshi asepaki, noma agaywe kabusha - izinto zokupakisha zokuqukethwe.

Ukwenziwa Komkhiqizo Wepulasitiki: Amapulasitiki anezicucu yiwona oyinhloko wezinto ezingavuthiwe zezinqubo eziningi zokubumba zepulasitiki. Ukubunjwa komjovo, ukubunjwa kwe-extrusion, kanye nokubumba okuvuthela konke kudinga amapulasitiki acwebile. Ama-granules ayancibilika futhi akhiwe abe yisimo esidingekayo somkhiqizo wokugcina. Isibonelo, ekukhiqizeni amathoyizi epulasitiki, ama-granules ayancibilika futhi afakwe esikhunjini ukuze enze isimo sethoyizi.

5. Izinto Ezithinta Ukusebenza Nekhwalithi

Ukulawula izinga lokushisa: Ukulawula izinga lokushisa okunembile ngesikhathi senqubo yokuncibilika kubalulekile. Uma izinga lokushisa liphansi kakhulu, ipulasitiki ingase ingancibiliki ngokuphelele, okuholela kuma-granules asezingeni eliphansi anezinhlayiya ezingancibilikisiwe. Uma izinga lokushisa liphezulu kakhulu, ipulasitiki ingase ihlehlise, ithinte izici zayo zemishini nezomzimba.

Isivinini se-Screw: Ijubane lesikulufu lithinta isikhathi sokuhlala sepulasitiki emgqonyeni kanye nokucindezela okukhiqizwayo. Isivinini esilungile sesikulufa siqinisekisa ukuncibilika okusebenzayo nokukhishwa. Isivinini esikhulu kakhulu singabangela ukwedlula - ukugunda kwepulasitiki, kuyilapho isivinini esiphansi kakhulu singaholela ekuhlanganiseni okwanele nokukhiqiza kancane.

I-Die Design: Idizayini ye-die plate, okuhlanganisa usayizi, inombolo, kanye nokuma kwezimbobo, kuthinta umumo nosayizi wezintambo ezinwetshiwe futhi, ngenxa yalokho, ama-granules. Idayi eklanywe kahle ingakhiqiza imicu eningi efanayo nama-granules.