Yiziphi izindlela zokufaka i-pelletizing zemigqa yokukhiqiza i-granulation?

Kunokwehluka okuningi umugqa we-pelletizing imiklamo emakethe, kodwa yonke imigqa yokugaya ama-pellet ihlukana ngezigaba ezimbili eziyinhloko: izinhlelo zokugaya ama-pellet ezibandayo kanye nezinhlelo zokugaya ama-pellet ezishisayo ezibhekene nobuso obubandayo. Umehluko omkhulu phakathi kwalezi ezimbili isikhathi senqubo yokugaya ama-pellet. Ngayinye yalezi zinhlelo ezimbili zokugaya ama-pellet inezinzuzo nezinkinga zayo!

Uhlelo lokusika olubandayo

Uhlelo lokufaka ama-pelletizing abandayo luqukethe idayi, indawo yokupholisa (epholile emoyeni noma emanzini), indawo yokomisa (uma ipholile emanzini) kanye negumbi lokufaka ama-pelletizing. Kunezinhlobo ezimbili eziyinhloko zezinhlelo zokufaka ama-pelletizing abandayo, okungukuthi ama-pelletizer e-flake kanye nama-pelletizer e-strip.

a: I-polymer encibilikisiwe ye-flake granulator igeleza isuka emishinini yokuxuba nge-belt die noma i-roller refiner ukuze ihlelwe ibe yi-polymer flakes enobukhulu obuthile. Ama-flakes ayaqina futhi apholiswe ibanga elithile ngesikhathi sokuthuthwa, bese enqunywa abe ama-pellet ayindilinga noma ayisikwele ane-pelletizer ebhodweni.

I-Chip granulation iyindlela endala kakhulu yokukhiqiza ama-granule ezinhlobonhlobo zama-polymer ahlukene kusukela ku-nylon kuya ku- PVC. Izinzuzo: Umkhiqizo ophezulu. Kubikwa ukuthi ukunemba kuhle impela, kunamandla okugaya afinyelela ku-1,843.69 kg/h. Lena indlela yokugaya ebandayo, futhi umsindo uphuma kakhulu kunendlela yokusika ama-granule avela kuma-polymer ancibilikisiwe. Ama-polymer aqinile ahlala isikhathi esifushane futhi ukukhiqizwa kwempuphu kuvame ukuba yinkinga. Kwamanye ama-polymer, ezinye izimo "zochungechunge lwezinhlamvu" zingabonakala.

b: Ama-strip pelletizers asetshenziswe cishe isikhathi eside njenge-flake pelletizers. Aqukethe idayi, ingxenye yokupholisa (ibhavu lamanzi noma i-blower), ingxenye yokomisa (uma ipholiswe ngamanzi) kanye nommese wokusika. Ama-strip akhiwa ngokudlulisa i-polymer encibilikisiwe nge-orifice efakwe ngokuvundlile kusetshenziswa umshini noma iphampu yegiya (ama-orifice esimanje asebenza ngomshini oqondile futhi afudunyezwa ngokulinganayo ukuze akhiqize ama-strip ekhwalithi efanayo). Uma ama-strip esekhishwe esikhumbeni, apholiswa yi-blower noma indawo yomoya/i-vacuum, noma ngebhavu lamanzi. Uma kusetshenziswa ukupholisa amanzi, ama-strip adlula engxenyeni yokomisa enomoya ophoqelekile ukuze kususwe umswakama bese ama-strip athunyelwa ekamelweni le-pelletizing. Ama-strip asikwa ngokunembile ubude obudingekayo kusetshenziswa isenzo sokusika semimese emibili eqinile nejikelezayo. Ama-granule anobubanzi obungu-3.175 mm kanye nobude obungu-3.175 mm anamakhona achazwe kahle.

c: Indlela yendabuko yokudweba imichilo ihilela ukwelula imichilo engxenyeni yokupholisa (ngokuvamile okuwukugeza ngamanzi), okubangela ukuthi ngezinye izikhathi kube nokuwa noma ukungaguquguquki kobukhulu bemichilo. Lokhu kuvamile kuma-polymer anamandla amancane okuncibilika, njenge-polypropylene, i-polyester kanye ne-nylon. Uma umchilo uwa, izinto ziyalahlwa, ngakho-ke abaqhubi kudingeka banake kakhulu. Uma imichilo idonswa ngokungaguquguquki, ama-pellet angezansi adinga ukuhlungwa.

Ezinye izindlela zokwakheka kwe-strip zingafezwa ngaphandle kokuqashwa okuseduze komqhubi ngokusebenzisa i-conveyor ene-slot eqhutshwa yinjini esekela futhi ihlukanise i-strip kusukela kudayi kuya ku-pelletizer. I-strip edluliswa yilolu hlobo lwamandla okuphotha ifana kakhulu ngobukhulu, ayiwi, ngakho-ke cishe ayinakushiywa. Ezinye zalezi zindlela zingaba nomthamo wokukhiqiza ongu-6803.89 kg/h, uma kuqhathaniswa cishe no-1814.37 kg/h wendlela yokwelula, njengoba opharetha engaphatha inani elilinganiselwe le-strip.

Imigqa ye-strip ayibizi, kulula ukuyisebenzisa futhi kulula ukuyihlanza. Lokhu kunezinzuzo zokuxuba imibala, njengoba ukushintsha imibala emibili ehlukene kudinga ukuhlanzwa kahle kwemishini. Kodwa-ke, ububi bendlela ye-strip isikhala esidingekayo sesigaba sokupholisa, ubude baso bunqunywa yizidingo zokushisa ze-polymer.

Uhlelo Lokusika Olushisayo Lobuso Bokufa

Kunezinhlobo ezintathu eziyisisekelo zezinhlelo zokusika ezishisayo ezisebenzisa i-die-surface, okungukuthi ama-spray granulators, ama-water-jet (ama-water ring granulators) kanye nama-underwear granulators. Nakuba izinhlelo ezinjalo zingaba nemiklamo ehlukene, uhlelo olujwayelekile luqukethe i-orifice die, igumbi lokusika, ummese ojikelezayo onenjini, indawo yokupholisa, kanye nendlela yokomisa ama-granule (uma kusetshenziswa ukupholisa amanzi).

Isikhunta se-orifice siyingxenye ebalulekile yesistimu ye-die face thermal pelletizing. Sifakwa siqonde phezulu noma ngokuvundlile futhi sivame ukufudunyezwa ngamafutha, umusi, noma i-cartridge noma i-band heater. Ukushisa kukagesi kuvame ukusetshenziselwa ama-dies amancane; noma kunjalo, ama-dies amakhulu avame ukufudunyezwa ngomusi noma uwoyela. Izinto zokwakha i-die ziyahlukahluka, kodwa kungakhathaliseki ukuthi isetshenziswa yiphi impahla noma indawo yokushisa, ububanzi be-die orifice kudingeka bufane; kudingeka kube nokushisa okwanele ukugcina izinga lokushisa le-polymer kulo lonke inqubo; futhi indawo ye-die ejikelezayo lapho ummese we-pelletizing ujikeleza khona kudingeka ibe lukhuni futhi ibushelelezi - konke okudingekayo ukukhiqiza i-pellet efanayo.

Njengoba i-polymer encibilikisiwe ifakwa ngaphakathi kwesikhunta, ummese ohlanganisa ama-pellet, ojikeleza ngesivinini esikhulu kakhulu, uyawusika ube ama-pellet. Ngokuvamile, ummese uthintana noma useduze kakhulu nendawo yesikhunta. Uma ama-pellet esesikiwe, aphonswa kude nommese ngamandla e-centrifugal bese ethuthelwa endaweni yokupholisa. Usayizi, ukuma, izinto zokwakha kanye nokufakwa kommese kungahluka. Kwezinye izinhlelo, ummese ufakwa entwasahlobo ukuze ulungise ngokuzenzakalelayo ibanga phakathi kommese ne-diye; kwezinye izinhlelo, ibanga phakathi kommese ne-diye lilungiswa ngesandla. Njengoba impilo yommese incike ekuqondeni kokulungiswa kommese kuya ku-diye, ukuklwebheka kwe-polymer, kanye nolaka lomsebenzi, ama-pellet e-polymer asikiwe esimweni esincibilikisiwe kuyathandeka.

a: Kunconywa ama-granulator okufutha kuma-polymer azwela ukushisa kanye nezikhathi zokuhlala isikhathi eside, njenge-PVC, i-TPR kanye ne-polyethylene exhumene. Amazinga okukhipha ama-pellet afinyelela ku-4989.52 kg/h ayadingeka ukuze kugcinwe indlela yokugeleza kwe-polymer isuka emshinini iye ekamelweni lokukhipha ama-pellet imfushane ngangokunokwenzeka futhi kusetshenziswe inani elincane lokushisa. Njengoba i-polymer idlula kudayi, amandla okujikeleza ongaphezulu kwedayi elijikelezayo alisika libe ama-pellet. Uma ama-pellet esesikiwe, aphonswa kude nommese ojikelezayo bese ebanjwa umoya ophoqelekile ukujikeleza ekamelweni lokukhipha ama-pellet eliklanyelwe ngokukhethekile. Umfudlana womoya uqala ngokucisha ubuso be-pellet bese uyikhipha ekamelweni lokusika bese uyiyisa endaweni yokupholisa.

Ama-dryer emibhedeni athambile avame ukusetshenziselwa ukupholisa ama-pellet. Ama-pellet ashintshwa phansi kwe-ramp elungisekayo bese ifeni elijikelezayo liqhumisa umoya ngama-pellet. Ukulungisa ukuthambekela kwe-ramp kungandisa noma kufinyeze isikhathi sokuhlala kwama-granules ku-dryer. Enye indlela evamile yokupholisa ukukhipha ama-pellets ekamelweni lokusika uwayise ethangini lamanzi bese ususa amanzi ku-dryer yemibhedeni ethambile noma ku-dryer ye-centrifugal.
b: Ama-granulator e-Water-jet, afanelekela iningi lama-polymer ngaphandle kwalawo ane-viscosity encibilikayo noma i-viscosity ephansi. Le mishini, eyaziwa nangokuthi ama-pelletizer endandatho yamanzi, inesilinganiso se-pelletizing esingu-13,607.77 kg/h.

I-polymer encibilikisiwe inqunywa ibe yizinhlayiya ezivela kudayi oshisayo ngommese ojikelezayo ojikeleza phezu kodayi. Isici esikhethekile salolu hlelo lokufaka i-pelletizing yikamelo lokufaka i-pelletizing elenziwe ngokukhethekile le-water jet. Amanzi ageleza nge-helix aze aphume ekamelweni. Uma ama-pellet esesikiwe, aphonswa emseleni wamanzi ukuze acinywe ekuqaleni. I-pellet water slurry ikhishwa ethangini le-pellet slurry ukuze iphole kakhulu bese ifakwa emshinini wokomisa we-centrifugal ukuze kususwe amanzi.

c: I-pelletizer engaphansi kwamanzi ifana ne-spray pelletizer kanye ne-water jet pelletizer, ngaphandle kokuthi inomfudlana wamanzi obushelelezi ogeleza phezu kobuso be-die, obuthintana ngqo nobuso be-die. Ubukhulu begumbi le-pelletizing bukhulu ngokwanele ukuvumela ummese we-pelletizing ukuthi ujikeleze ngokukhululeka phezu kobuso be-die ngaphandle kokuvimbela ukugeleza kwamanzi. I-polymer encibilikisiwe idlula ku-die, ummese ojikelezayo usika ama-pellet, bese ama-pellet ekhishwa ekamelweni le-pelletizing ngamanzi afudumele aye ku-centrifugal dryer. Ku-dryer, amanzi akhishwa abuyele ethangini lokugcina, apholiswe futhi aphinde asetshenziswe; ama-pellet adlula ku-centrifugal dryer ukuze asuse amanzi.

I-pelletizer engaphansi kwamanzi idinga ukusebenzisa isikhunta somlomo ngokusabalalisa ukushisa okulinganayo kanye nezinsiza ezikhethekile zokuvikela ukushisa. Imimese emincane yokufaka ama-pellet ifudunyezwa ngogesi; imimese emikhulu yokufaka ama-pellet idinga ama-orifice afudunyezwa ngowoyela noma ngomusi. Amanzi enqubo afudunyezwa njalo aze afike emazingeni okushisa aphezulu, kodwa awashisi ngokwanele ukuthinta ukugeleza kwamahhala kwama-pellet. Ama-granulator angaphansi kwamanzi asetshenziswa kuma-polymer amaningi futhi amanye amamodeli ayakwazi ukufinyelela umthamo we-granulation ongu-22,679.62 kglh. Indlela amanzi ageleza ngayo phezu kobuso be-orifice iyinzuzo enkulu uma isetshenziselwa ukufaka ama-polymer aphansi noma aqinile, kodwa kwamanye ama-polymer afana ne-nylon kanye neminye imikhiqizo ye-polyester lesi sici singabangela ukuthi i-orifice iqine. Ezinye izinzuzo zifaka: ukukhishwa komsindo okuphansi ngoba ukufaka ama-pellet kwenziwa esimweni esincibilikisiwe futhi amanzi asebenza njengesithiyo somsindo; kanye nezinguquko ezimbalwa zemimese yokufaka ama-pellet uma kuqhathaniswa nezinhlelo zokusika ezibandayo.