Inqubo yokukhiqiza izindwangu ezingalukiwe ezincibilikisiwe iwukusebenzisa umoya oshisayo osheshayo ukudonsa umfudlana omncane wokuncibilika kwe-polymer okukhishwe endaweni engaphandle kwedayi, ngaleyo ndlela kwakhiwe imicu emincane kakhulu futhi kuncibilike ekhethinini noma ku-roller, bese kuthenjelwa ku-Bonds uqobo ukuze ibe yindwangu engalukiwe.

Ukuqhathaniswa kwe-meltblown fiber kanye ne-spun-bond fiber:
● Ubude befayibha: I-Spunbond iyi-filament, i-meltblown iyi-fibre emfushane.
● Amandla efayibha: Amandla efayibha ye-Spunbond> Amandla efayibha encibilikayo.
● Ubuncane befayibha: Ifayibha encibilikisiwe incane kunefayibha ephothiwe.

Amadivayisi okuncibilikisa ahlukaniswe ngezinhlobo ezivundlile neziqondile ngokwezindlela zawo zokubeka.

1. Ukugeleza kwenqubo kanye nemishini
Inqubo yokuncibilika

Ukulungiswa kwe-polymer→i-extrusion yokuncibilikisa→iphampu yokulinganisa→i-metering die assembly→i-melt blowing die stretching→i-melt trickle stretching→i-cooling→idivayisi yokwamukela

Imishini efakiwe emgqeni wokukhiqiza indwangu engalukiwe ye-pp meltblown

Imishini eyinhloko: i-feeder, i-screw extruder, i-metering pump, i-meltblown die assembly, i-air compressor, i-air heater, idivayisi yokwamukela, idivayisi yokugoqa. Ukuze kukhiqizwe i-polyester nezinye izinto zokusetshenziswa, kudingeka nedivayisi yokomisa ama-chip.

Imishini yokusiza: isithando sokuhlanza ngodayi, idivayisi yokufaka ngogesi, kanye nedivayisi yokufafaza, njll.

1. Element

Kufakwe ku-hopper ye-extruder. Umsebenzi we-feeder ukumunca izingcezu ze-polymer ku-hopper ye-screw extruder. Ngokuvamile inomsebenzi ozenzakalelayo. Inani lokudla ngeyunithi ngayinye lingabekwa ngokuya ngomphumela womugqa wonke wokukhiqiza.
2. Isikulufo sokukhipha izinto
3. Iphampu yokulinganisa
4. Ukuhlanganiswa kwekhanda le-die elincibilikisiwe
Ukuhlanganiswa kwedayi kuyingxenye ebaluleke kakhulu yemishini encibilikayo, okuhlanganisa kakhulu:

1. Uhlelo lokusabalalisa ukuncibilika kwe-polymer
2. Uhlelo lwekhanda lokufa

Uhlelo lokusabalalisa ukuncibilika kwe-polymer
Uhlelo lokusabalalisa ukuncibilika kwe-polymer lungaqinisekisa ukuthi ukuncibilika kwe-polymer kugeleza ngokulinganayo ngobude bedayi ye-meltblown futhi kunesikhathi sokuhlala esifanayo, ngaleyo ndlela kuqinisekiswe ukuthi indwangu engalukiwe ye-meltblown inezakhiwo ezifanayo ngobubanzi.

Uhlelo lokufa
Uhlelo lwekhanda lokudaya lwakhiwe yi-spinneret, ipuleti legesi, izinto zokushisa nokugcina ukushisa, njll.
Ukufana kwemikhiqizo ye-meltblown kuhlobene eduze ne-die. Ngokuvamile, ukunemba kokucubungula kwekhanda le-meltblown die kuphezulu, ngakho-ke izindleko zokukhiqiza zekhanda le-die ziyabiza.

Uhlelo lokufa

5. Isifudumezi somoya
Inqubo yokuncibilika kwe-melt idinga umoya oshisayo omningi. Umoya ophumayo ocindezelwe yi-air compressor uyasuswa umswakama bese uhlungwa bese uthunyelwa ku-air heater ukuze ufudumale, bese uthunyelwa ku-meltblown die assembly. I-air heater iyisitsha sokucindezela, futhi ngesikhathi esifanayo kumele imelane nokushiswa komoya oshisa kakhulu, ngakho-ke izinto kumele zibe yinsimbi engagqwali.

6. Idivayisi yokwamukela
Izinhlobo eziyinhloko zamadivayisi okwamukela inqubo yokuncibilika yilezi: uhlobo lwe-roller, uhlobo lwesikrini esicaba
Ukubumba okunezinhlangothi ezintathu (i-mandrel): idivayisi yokukhiqiza izakhi zokuhlunga
Sebenzisa idivayisi yokwamukela enezinhlangothi ezintathu, ehlukaniswe phakathi kokwamukela ngezikhathi ezithile kanye nokwamukela okuqhubekayo.

Idivayisi yokwamukela ngezikhathi ezithile
Idivayisi eyamukelayo iyahamba iye emuva naphambili, futhi imicu iboshwe ku-mandrel ngezingqimba eziningi; ibanga lokwamukela liyashintshwa ukuze kukhiqizwe isici sokuhlunga esine-gradient yobuningi;
Shintsha usayizi we-mandrel ukuze ukhiqize izinto zokuhlunga ezinobubanzi obuhlukene bangaphakathi. Ngemva kokuba into ngayinye yokuhlunga yenziwe, i-mandrel idinga ukushintshwa, ngakho ukusebenza kahle kokukhiqiza kuphansi.

Idivayisi yokwamukela eqhubekayo
I-mandrel etholayo isesimweni somsebe we-cantilever, futhi kukhona umshafti wokudlulisa wokukhipha isici sokuhlunga esiyi-tubular. Ikhanda lomshafti wokudlulisa liyacutshungulwa, bese isici sokuhlunga esiyi-tubular sikhishwa ku-mandrel etholayo bese sithuthwa siye ohlelweni lokusika.
Uma kukhiqizwa izinto zokuhlunga ezine-density gradients, kufanele kufakwe amakhanda amaningi e-die anamabanga ahlukene okwamukela.

7. Izinto zokusebenza ezisizayo
Imishini eyinhloko yokusiza yomugqa wokukhiqiza i-meltblown isithando sokuhlanza idayi. Ukuvaleka kwemigodi kuzokwenzeka ngemva kokuba ikhanda ledayi le-meltblown selikhiqizwe isikhathi esithile. Ngalesi sikhathi, ikhanda ledayi le-meltblown lidinga ukushintshwa.
I-meltblown die eshintshiwe idinga ukushiswa ukuze kususwe i-polymer kanye nokungcola okusele ku-die. Izikulufo nama-spinneret ngokuvamile kuyashiswa ukuze kususwe ama-polymer asele kanye nokungcola.

2. Izinto zokusetshenziswa ezisetshenziswa ekuncibilikeni kwe-meltblown
Ngokwethiyori, zonke izinto zokusetshenziswa ze-polymer chip ze-thermoplastic (ukuncibilika kwezinga lokushisa eliphezulu, ukuqina kwezinga lokushisa eliphansi) zingasetshenziswa enqubweni yokuncibilika. I-Polypropylene ingenye yezinto zokusetshenziswa kakhulu kwe-chip zobuchwepheshe be-meltblown. Ngaphandle kwalokho, izinto zokusetshenziswa kakhulu kwe-polymer chip zobuchwepheshe be-meltblown zifaka i-polyester, i-polyamide, i-polyethylene, i-polytetrafluoroethylene, i-polystyrene, i-PBT, i-EMA, i-EVA, njll. Uhlobo lwe-polymer lunquma indawo yayo yokuncibilika kanye nezakhiwo ze-rheological. Kuzo zonke izinto zokusetshenziswa ze-polymer, kunenqubo yokuqhuma yokuncibilika ehambisanayo, njengokushisa kokushisa, isilinganiso sobude besikulufo kuya kububanzi, isimo sesikulufo, inqubo yokomisa izinto zokusetshenziswa, njll., kukhona umehluko othile.
Izinto zokusetshenziswa ze-polymer ze-Olefin (njenge-polypropylene) zinezinga eliphezulu le-polymerization, ngakho-ke izinga lokushisa lokushisa liphakeme kunezinga lalo lokuncibilika elingu-100 ℃ noma ngaphezulu lingancibilika kahle, kuyilapho izinga lokushisa lokushisa le-polyester liphakeme kancane kunezinga lalo lokuncibilika elingancibilika. Izinto zokusetshenziswa ze-Olefin ngokuvamile azidingi ukomiswa. I-polyester kumele yomiswe nge-chip-omiswe.
Isisindo sama-molecule kanye nokusatshalaliswa kwesisindo sama-molecule kwezinto zokusetshenziswa ze-polymer yizinto ezibaluleke kakhulu ezithinta inqubo yokuncibilika kanye nokusebenza kwezindwangu ezingalukiwe ze-meltblown.
Ngenqubo yokuncibilika, ngokuvamile kukholelwa ukuthi isisindo esiphansi sama-molecule kanye nokusatshalaliswa okuncane kwesisindo sama-molecule kwezinto zokusetshenziswa ze-polymer kuzuzisa ukufana kwewebhu yokuncibilika. Uma isisindo sama-molecule se-polymer siphansi, kulapho inkomba yokuncibilika kokuncibilika (i-MFI, inkomba yokuncibilika kokuncibilika, ibhekisela esisindweni sokuncibilika okuphuma ngemizuzu eyi-10 ngaphansi kwengcindezi ethile kanye nokushisa), futhi lapho i-viscosity yokuncibilika iphansi, kulapho ifaneleka khona kakhulu. Inqubo yokuncibilika kokuncibilika inomphumela wokudweba obuthakathaka.

3. isakhiwo kanye nezakhiwo zezindwangu ezingalukiwe ezincibilikisiwe
Esinye sezici zezindwangu ezingalukiwe ezincibilikisiwe ukuthi ubucwebe befayibha buncane, ngokuvamile bungaphansi kuka-10 μm, kanti iningi lobucwebe befayibha liyi-1 kuya ku-4 μm.
Amandla ahlukahlukene kulo lonke ulayini wokuphotha kusukela ku-nozzle ye-meltblown die kuya kudivayisi yokwamukela awakwazi ukulinganiswa (ithonya lokuguquguquka kwamandla okwelula kokushisa okuphezulu kanye nokugeleza komoya okushesha kakhulu, ijubane, kanye nokushisa komoya opholile, njll.), okwenza i-fibre ye-meltblown ibe nobukhulu obuhlukene bobuncane.
Ukufana kobubanzi befayibha kuwebhu yendwangu engalukiwe yesibopho esisontiwe kungcono kakhulu kunokwefayibha encibilikisiwe, ngoba enqubweni yesibopho esisontiwe, izimo zenqubo yokuphotha zizinzile, futhi izimo zokudweba nokupholisa azishintshi.
Ukwakheka kwekristali kanye nokuma kwe-fibre encibilikayo kuncane kunokwendlela ye-spun-bond. Ngakho-ke, amandla e-fibre encibilikayo aphansi, futhi amandla e-fiber web nawo aphansi. Amandla e-fiber eminingana ye-PP alandelayo:

Amandla emicu eminingana ye-PP

Ngenxa yokuqina okungekuhle kwemicu ye-meltblown, ukusetshenziswa okungokoqobo kwezindwangu ezingalukiwe ze-meltblown kungenxa yezici zemicu yayo emihle kakhulu.

4.ukusetshenziswa kwezindwangu ezingalukiwe ezincibilikisiwe
Njengamanje, izindwangu ezingalukiwe ezincibilikisiwe zisetshenziselwa kakhulu:
Izinto zokuhlunga ezi-1
Ukuhlunga ukuhlukaniswa kwezinto ezincane ezihlakazekile kugesi noma uketshezi.
Indlela yokuhlunga: ukufakwa kwesivingo, ukufakwa kwe-electrostatic, ukufakwa kokusabalalisa, njll.
Ingabe izinhlayiya zinkulu kunosayizi wembobo yezinto zokuhlunga ezizohlungwa?
Izifundo zikhombisile ukuthi: izinto zokuhlunga ezinosayizi wembobo ephakathi kweshumi namashumi ama-micron zingabamba uthuli olufika ku-1 µm. Ukuze kuthuthukiswe umphumela wokuthungwa kwesihlungi, kuyadingeka ukunciphisa usayizi wembobo yezinto zokuhlunga, okungukuthi, ukunciphisa ubuncane befayibha nokwandisa ubuningi bezinto.
Izinto ezingalukiwe ezincibilikisiwe zinezinzuzo zemicu emincane, ama-pores amaningi, kanye nosayizi wama-pore amancane.

Isicelo:
Ukuhlunga igesi: imaski yezokwelapha, izinto zokuhlunga ze-air conditioner yangaphakathi.
Ukuhlunga uketshezi: ukuhlunga iziphuzo, ukuhlunga amanzi.
Ukuze kuthuthukiswe umphumela wokuhlunga, ubuncane befayibha bungancishiswa futhi ubuningi bezinto zokuhlunga bungakhushulwa, kodwa kuzobangela ukwanda okukhulu kokumelana nokuhlunga.
Ngakho-ke, vumela izinto ezingalukiwe ezincibilikisiwe zishajwe ngogesi, futhi umphumela wazo wokuhlunga ungathuthukiswa ngomphumela we-electrostatic, okungukuthi, ukwelashwa nge-electret.
Indwangu engalukiwe ehlungwe nge-electret ene-meltblown inogesi ohlala isikhathi eside futhi ingathembela kumphumela we-electrostatic ukuze ibambe uthuli oluncane, ngakho-ke inezinzuzo zokusebenza kahle kokuhlunga okuphezulu kanye nokumelana nokuhlunga okuphansi.
I-Polypropylene inokumelana okuphezulu kukagesi (7×1010Ω·cm) kanye nomthamo omkhulu wokujova wokushaja. Iyinto efanelekile yokwenza imicu ye-electret. Ukuhlolwa kubonisa ukuthi ngemva kwamahora angu-1440 okugcinwa kwendwangu engalukiwe ye-polypropylene eqediwe nge-electret esimweni semvelo, ukusebenza kahle kokuhlunga akushintshi.
Ithonya lokuqedwa kwe-electret ekusebenzeni kahle kokuhlunga kanye nokumelana kwezindwangu ezingalukiwe ezincibilikisiwe

Ithonya lokuqedwa kwe-electret ekusebenzeni kahle kokuhlunga kanye nokumelana kwezindwangu ezingalukiwe ezincibilikisiwe

Kungabonakala ukuthi ukumelana kokuhlunga kwendwangu engalukiwe encibilikisiwe akukashintshi ngemva kokuqeda i-electret, kodwa ukusebenza kahle kokuhlunga kuthuthukiswe kakhulu, okungenakuqhathaniswa nezinye izindwangu ezingalukiwe.

2. Izinto zokwelapha nezempilo
Imaski yezokwelapha: impahla ehlanganisiwe (i-SMS) eyenziwe ngezinto ezisontekile ezingqimbeni zangaphakathi nezangaphandle, kanye nezinto ezincibilikisiwe phakathi.

3. Izinto zokuvikela imvelo (izinto ezimunca uwoyela)
Indwangu engalukiwe ye-polypropylene meltblown iyinto enhle yokumunca uwoyela ngenxa yezakhiwo zayo kanye nesakhiwo se-microfiber. Isetshenziswe kabanzi emazweni athuthukile njengeYurophu, iMelika, iJapan, njll., njengokuchitheka kukawoyela wasolwandle, ukuchitheka kukawoyela okuvela emishinini yasefektri, kanye nokwelashwa kwendle.
Indwangu engalukiwe ye-polypropylene meltblown inezakhiwo ezithinta amanzi kanye ne-lipophilic, imelana nama-asidi aqinile nama-alkali, futhi inobunzima obuphansi kunamanzi. Ngemva kokumuncwa kwamafutha, ingantanta emanzini isikhathi eside ngaphandle kokuguquka futhi ingaphinde isetshenziswe futhi igcinwe isikhathi eside. Izindwangu ezingalukiwe ze-polypropylene meltblown zenziwa izintambo ezimunca amafutha, amaketanga amunca amafutha, imicamelo emunca amafutha, njll. Ukumuncwa kwamafutha kungafinyelela isisindo esiphindwe kayi-10-50.

4. Izinto zokugqoka (izinto zokugcina ukufudumala)
Izinto zokuvikela ukushisa kufanele zibe nezakhiwo ezinhle zokuvikela ukushisa futhi zingasetshenziswa isikhathi eside ngaphandle kokushintsha izakhiwo zazo zokuvikela ukushisa.
Ukuhlolwa kubonisa ukuthi isakhiwo se-fiber mesh singenye yezinto eziyinhloko ezithinta ukusebenza kokudluliselwa kokushisa kwezinto zokuvimbela ukushisa.
Kwizinto zokuvikela ukushisa ezihlanganisiwe ezincibilikisiwe, ukujiya kwazo akunawo umthelela omkhulu ekungeneni komoya, kuyilapho ukujiya komoya kwama-flakes e-polyester fiber kukhuphuka ngokushesha njengoba ukujiya kuncipha. Ngakho-ke, izinto zokuvikela ukushisa ezihlanganisiwe ezincibilikisiwe zinokumelana nomoya okuqinile.

5. Isihlukanisi sebhethri
Izinto ze-diaphragm ziyingxenye ebalulekile yebhethri futhi zivame ukufakwa phakathi kwamapuleti amahle nangalungile. Umsebenzi oyinhloko ukuvikela amapuleti amahle nangalungile ukuqinisekisa ukugeleza kwe-dielectric.
Izinto ze-polypropylene zinokumelana okuhle kakhulu kwe-asidi ne-alkali. Izinto ze-polypropylene meltblown diaphragm zinezici zobukhulu be-pore encane, i-porosity enkulu, ukumelana okuncane, kanye nezinguquko ezahlukahlukene zomkhiqizo.