Inkqubo yokuvelisa amalaphu angalukwanga e-meltblown kukusebenzisa umoya oshushu okhawulezayo ukutsala umsinga omncinci we-polymer melt ephuma kwi-orifice yedayi, ngaloo ndlela yenze imicu emincinci kakhulu kwaye ijijeke kwikhethini yenethi okanye i-roller, kwaye ixhomekeke kwiBonds ngokwayo ukuba ibe yilaphu elingalukwanga.

Ukuthelekiswa kwe-meltblown fiber kunye ne-spun-bond fiber:
● Ubude befayibha: I-Spunbond yi-filament, i-meltblown yi-fibre emfutshane.
● Amandla efayibha: Amandla efayibha yeSpunbond> Amandla efayibha enyibilikayo.
● Ubuncinci befayibha: Ifayibha enyibilikayo incinci kunefayibha ephothiweyo.

Izixhobo zokunyibilikisa zahlulwe zibe ziintlobo ezithe tye nezithe nkqo ngokweendlela zazo zokubeka.

1. Ukuhamba kwenkqubo kunye nezixhobo
Inkqubo yokunyibilika

Ukulungiswa kwePolymer→i-melt extrusion→i-metering pump→i-metal blowing die assembly→i-melt trickle stretching→i-melt trickle stretching→i-cooling→isixhobo sokwamkela

Izixhobo ezifakiweyo kumgca wemveliso yelaphu elingalukwanga le-pp meltblown

Izixhobo eziphambili: isixhobo sokutya, isixhobo sokukhuhla isikrufu, ipompo yokulinganisa, indibano yedayi enyibilikayo, icompressor yomoya, isifudumezi somoya, isixhobo sokwamkela, isixhobo sokujija. Ukuze kuveliswe ipolyester kunye nezinye izinto ezikrwada, kufuneka isixhobo sokomisa iitshiphusi.

Izixhobo ezincedisayo: isithando sokucoca ngombane, isixhobo sokufaka umbane, kunye nesixhobo sokutshiza, njl.

1. Isondli

Ifakwe kwi-hopper ye-extruder. Umsebenzi we-feeder kukufunxa izilayi ze-polymer kwi-hopper ye-screw extruder. Ihlala inomsebenzi ozenzekelayo. Ubungakanani bokutya ngeyunithi nganye bunokubekwa ngokwemveliso yomgca wonke wemveliso.
2. Isikrufu esikhupha izinto ezingafunekiyo
3. Impompo yokulinganisa
4. Indibano yentloko ye-die e-Meltblown
I-die assembly yeyona nxalenye ibalulekileyo yezixhobo ezinyibilikayo, ikakhulu kubandakanya:

1. Inkqubo yokusasazwa kokunyibilika kwePolymer
2. Inkqubo yentloko yokufa

Inkqubo yokusasazwa kokunyibilika kwePolymer
Inkqubo yokusasazwa kokunyibilika kwepolymer inokuqinisekisa ukuba ukunyibilika kwepolymer kuhamba ngokulinganayo kubude be-meltblown die kwaye inexesha elifanayo lokuhlala, ngaloo ndlela iqinisekisa ukuba ilaphu elingalukwanga le-meltblown lineempawu ezifanayo kububanzi.

Inkqubo yokufa
Inkqubo yentloko yedayi yenziwe nge-spinneret, ipleyiti yegesi, izinto zokufudumeza kunye nokugcina ubushushu, njl.
Ukufana kweemveliso ze-meltblown kunxulumene kakhulu ne-die. Ngokubanzi, ukuchaneka kokucubungula kwentloko ye-meltblown die kuphezulu, ngoko ke iindleko zokuvelisa intloko ye-die zibiza kakhulu.

Inkqubo yokufa

5. Isifudumezi somoya
Inkqubo yokunyibilika komoya ifuna umoya oshushu kakhulu. Umoya ophumayo ocinezelweyo yi-air compressor uyasuswa umswakama kwaye uhluzwe uze uthunyelwe kwi-air heater ukuze ufudumale, uze uthunyelwe kwi-meltblown die assembly. I-air heater sisitya soxinzelelo, kwaye kwangaxeshanye kufuneka imelane ne-oxidation yomoya obushushu obuphezulu, ngoko ke izinto kufuneka zibe yintsimbi engatyiwayo.

6. Isixhobo sokwamkela
Iintlobo eziphambili zezixhobo zokwamkela inkqubo yokunyibilika zezi: uhlobo lwerola, uhlobo lwesikrini esisicaba
Ukubumba okunemilinganiselo emithathu (i-mandrel): isixhobo sokwenza izinto zesihluzi
Sebenzisa isixhobo sokwamkela esinobukhulu obuthathu, esahlulwe phakathi kokwamkela okukhawulezileyo kunye nokufumana okuqhubekekayo.

Isixhobo sokwamkela esingenaxesha
Isixhobo sokwamkela sihamba sibuyela umva, kwaye iifayibha zibotshelelwe kwi-mandrel ngeeleya ezininzi; umgama wokwamkela uyatshintshwa ukuze kuveliswe into yokucoca ene-density gradient;
Tshintsha ubungakanani be-mandrel ukuze uvelise izinto zesihluzo ezineedayamitha ezahlukeneyo zangaphakathi. Emva kokuba into nganye yesihluzo yenziwe, i-mandrel kufuneka itshintshwe, ukuze ukusebenza kakuhle kwemveliso kube phantsi.

Isixhobo sokwamkela esiqhubekayo
I-mandrel efumanayo ikwimo ye-cantilever beam, kwaye kukho i-transmission shaft yokukhupha i-tubular filter element. Isiphelo sentloko se-transmission shaft sifakwe intambo, kwaye i-tubular filter element itsalwa kwi-receiving mandrel ize ithuthwe iye kwinkqubo yokusika.
Xa kuveliswa izinto zesihluzo ezine-density gradients, kufuneka kuxhotyiswe iintloko ezininzi ze-die ezinemigama eyahlukileyo yokwamkela.

7. Izixhobo ezincedisayo
Izixhobo ezincedisayo eziphambili zomgca wokuvelisa i-meltblown sisithando sokucoca iidayi. Ukuvaleka kwemingxunya kuya kwenzeka emva kokuba intloko yedayi e-meltblown ivelisiwe okwethutyana. Ngeli xesha, intloko yedayi e-meltblown kufuneka itshintshwe.
Idayi etshintshiweyo ye-meltblown kufuneka itshiswe ukuze kususwe i-polymer kunye nokungcola okuseleyo kwidayi. Izikrufu kunye nee-spinnerets zihlala zirostiwe ukuze kususwe ii-polymers eziseleyo kunye nokungcola.

2. Izinto ezisetyenzisiweyo xa kunyibilika i-meltblown
Ngokwethiyori, zonke izinto ze-polymer chip ezisetyenziswa kwi-thermoplastic (ukunyibilika kobushushu obuphezulu, ukuqina kobushushu obuphantsi) zingasetyenziswa kwinkqubo ye-meltblown. I-Polypropylene yenye yezona zinto zisetyenziswa kakhulu kwi-chip kwitekhnoloji ye-meltblown. Ngaphandle koko, izinto ze-polymer chip ezisetyenziswa kakhulu kwitekhnoloji ye-meltblown ziquka i-polyester, i-polyamide, i-polyethylene, i-polytetrafluoroethylene, i-polystyrene, i-PBT, i-EMA, i-EVA, njl.njl. Uhlobo lwe-polymer lumisela indawo yayo yokunyibilika kunye neempawu ze-rheological. Kwizinto ze-polymer nganye ezisetyenziswa kwi-polymer, kukho inkqubo yokuvuthela ukunyibilika ehambelanayo, efana nobushushu bokufudumeza, umlinganiselo wobude be-screw ukuya kububanzi, imo ye-screw, inkqubo yokomisa izinto ezisetyenziswa kwi-greenhouse, njl.njl., kukho umahluko othile.
Izinto eziluhlaza ze-Olefin polymer (ezifana ne-polypropylene) zinezinga eliphezulu le-polymerization, ngoko ke ubushushu bokufudumeza buphezulu kune-melting point yayo eyi-100 ℃ okanye ngaphezulu bunokunyibilika kakuhle, ngelixa ubushushu bokufudumeza be-polyester buphezulu kancinci kune-melting point yayo bunokunyibilika. Izinto eziluhlaza ze-Olefin ngokubanzi azidingi komiswa. I-polyester kufuneka yomiswe nge-chip-omiswe.
Ubunzima bemolekyuli kunye nokusasazwa kobunzima bemolekyuli bezinto eziluhlaza zepolymer zezona zinto zibalulekileyo ezichaphazela inkqubo yokunyibilika kunye nokusebenza kwamalaphu angalukwanga e-meltblown.
Kwinkqubo yokunyibilika, kukholelwa ngokubanzi ukuba ubunzima obuphantsi beemolekyuli kunye nokusasazwa okuncinci kobunzima beemolekyuli zezinto eziluhlaza zepolymer kuluncedo ekufaneni kwewebhu yokunyibilika. Okukhona ubunzima beemolekyuli zepolymer buphantsi, kokukhona isalathisi sokunyibilika kwe-melt (MFI, isalathisi sokunyibilika kwe-melt, sibhekisa kubunzima bokunyibilika okuphuma kwimizuzu eli-10 phantsi koxinzelelo oluthile kunye nobushushu), kwaye okukhona i-melt viscosity iphantsi, kokukhona ifanelekile ngakumbi. Inkqubo yokunyibilika kwe-melt inefuthe elibuthathaka lokudrafta.

3. ulwakhiwo kunye neempawu zelaphu ezingalukwanga ezinyibilikisiweyo
Enye yeempawu zelaphu ezingalukwanga ezinyibilikisiweyo kukuba ubuncinci befayibha, budla ngokuba ngaphantsi kwe-10 μm, kwaye uninzi lobuncinci befayibha buyi-1 ukuya kwi-4 μm.
Amandla ahlukeneyo kumgca wonke wokujikeleza ukusuka kwi-meltblown die nozzle ukuya kwisixhobo sokwamkela awakwazi ukulinganiswa (impembelelo yokuguquguquka kwamandla okolula kobushushu obuphezulu kunye nokuhamba komoya okukhawulezayo, isantya, kunye nobushushu bomoya opholileyo, njl.njl.), nto leyo eyenza i-meltblown fiber ibe nobukhulu obahlukeneyo bobuncinci.
Ukulingana kobubanzi befayibha kwiwebhu yelaphu elisontiweyo elingelolukiweyo kungcono kakhulu kunobo befayibha enyibilikayo, kuba kwinkqubo ye-spin bond, iimeko zenkqubo yokujikeleza zizinzile, kwaye iimeko zokubhala kunye nokupholisa azitshintshi.
Ubukhali kunye nokwakheka kwe-meltblown fiber kuncinci kunendlela ye-spun-bond. Ke ngoko, amandla e-meltblown fiber aphantsi, kwaye amandla e-fiber web nawo aphantsi. Amandla ee-PP fibers ezininzi ngala alandelayo:

Amandla eefayibha ezininzi zePP

Ngenxa yokungabi namandla kakuhle kweefayibha ze-meltblown, ukusetyenziswa ngokuchanekileyo kweefayibha ezingalukwanga ze-meltblown kubangelwa ikakhulu ziimpawu zeefayibha zayo ezicolekileyo kakhulu.

4.ukusetyenziswa kwamalaphu angalukwanga anyibilikisiweyo
Okwangoku, amalaphu angalukwanga e-meltblown asetyenziswa kakhulu kwezi zinto zilandelayo:
Izinto zokucoca ezi-1
Ukuhluza kukwahlulwa kwezinto ezincinci ezisasazeke kwigesi okanye kulwelo.
Indlela yokuhluza: ukuvalelwa kwe-sieving, ukubekwa kwe-electrostatic, ukubekwa kwe-diffusion, njl.njl.
Ingaba la masuntswana makhulu kunobukhulu bemingxuma yezinto zokucoca eziza kuhluzwa?
Izifundo zibonise ukuba: izixhobo zokucoca ezinobukhulu be-pore ephakathi kweshumi kunye namashumi ee-microns zinokubamba uthuli ukuya kuthi ga kwi-1 µm. Ukuphucula isiphumo se-sedimentation yesihluzo, kuyimfuneko ukunciphisa ubungakanani be-pore yezinto zokucoca, oko kukuthi, ukunciphisa ubuncinci befayibha kunye nokunyusa uxinano lwezinto.
Izinto ezingalukwanga ezinyibilikisiweyo zineengenelo zeefayibha ezincinci, iimbobo ezininzi, kunye nobukhulu beembobo ezincinci.

sicelo:
Ukuhluzwa kwegesi: iimaski zonyango, izixhobo zokuhluza izixhobo zomoya ezisetyenziswa ngaphakathi endlwini.
Ukuhluzwa kolwelo: ukuhluzwa kweziselo, ukuhluzwa kwamanzi.
Ukuphucula isiphumo sokucoca, ubuncinci befayibha bunokuncipha kwaye ubuninzi bezinto zokucoca bunokwandiswa, kodwa kuya kubangela ukwanda okukhulu kokumelana nokucoca.
Ngoko ke, vumela izinto ezingelukwanga ezinyibilikisiweyo zitshajwe ngombane, kwaye isiphumo sazo sokucoca singaphuculwa ngesiphumo se-electrostatic, oko kukuthi, unyango lwe-electret.
Ilaphu elingalukwanga elicociwe nge-electret elicociwe nge-meltblown linombane ongashukumiyo ohlala ixesha elide kwaye linokuxhomekeka kwisiphumo se-electrostatic ukubamba uthuli olucolekileyo, ngoko ke linezibonelelo zokusebenza kakuhle kokuhluza kunye nokumelana nokuhluza okuphantsi.
I-Polypropylene inokumelana okuphezulu kombane (7×1010Ω·cm) kunye nomthamo omkhulu wokutshiza. Yinto efanelekileyo yokwenza iifayibha ze-electret. Uvavanyo lubonisa ukuba emva kweeyure ezili-1440 zokugcina ilaphu le-polypropylene eligqityiweyo nge-electret elingasebenziyo likwimeko yendalo, ukusebenza kakuhle kokuhluza akutshintshi.
Impembelelo yokugqitywa kwe-electret ekusebenzeni kakuhle kokuhluza kunye nokumelana kwamalaphu angalukwanga e-meltblown

Impembelelo yokugqitywa kwe-electret ekusebenzeni kakuhle kokuhluza kunye nokumelana kwamalaphu angalukwanga e-meltblown

Kuyabonakala ukuba ukumelana nokuhluzwa kwelaphu elingalukwanga elinyibilikisiweyo akukatshintshi emva kokugqitywa kwe-electret, kodwa ukusebenza kakuhle kokuhluza kuphuculwe kakhulu, okungenakuthelekiswa nezinye ilaphu ezingalukwanga.

2. Izixhobo zonyango kunye nempilo
Imaski yezonyango: into edityanisiweyo (i-SMS) eyenziwe ngezinto ezisontiweyo kwiileya zangaphakathi nezangaphandle, kunye nezinto ezinyibilikisiweyo embindini.

3. Izixhobo zokukhusela okusingqongileyo (izinto ezifunxa ioyile)
Ilaphu elingalukwanga le-polypropylene meltblown liyinto elungileyo yokufunxa ioyile ngenxa yeempawu zalo kunye nolwakhiwo lwe-microfiber. Liye lasetyenziswa kakhulu kumazwe aphuhlileyo afana neYurophu, iMelika, iJapan, njl.njl., njengokuchitheka kweoyile yaselwandle, ukuchitheka kweoyile evela kwizixhobo zasefektri, kunye nonyango lwelindle.
Ilaphu elingalukwanga le-polypropylene meltblown lineempawu ezingathathi cala kwaye ziphosakele, liyakwazi ukumelana nee-asidi ezinamandla kunye ne-alkalis, kwaye linobunzima obuphantsi kunamanzi. Emva kokufunxwa kweoyile, lingadada phezu kwamanzi ixesha elide ngaphandle kokuguquka kwaye linokuphinda lisetyenziswe kwaye ligcinwe ixesha elide. Amalaphu angalukwanga e-polypropylene meltblown enziwe ngeentambo ezifunxa ioyile, iitsheyini ezifunxa ioyile, imiqamelo efunxa ioyile, njl. Ukufunxwa kweoyile kunokufikelela kubunzima obuphindwe ka-10-50.

4. Izinto zokunxiba (izinto zokugcina ubushushu)
Izixhobo zokukhusela ubushushu kufuneka zibe neempawu ezilungileyo zokukhusela ubushushu kwaye zingasetyenziswa ixesha elide ngaphandle kokutshintsha iimpawu zazo zokukhusela ubushushu.
Uvavanyo lubonisa ukuba ulwakhiwo lwe-fiber mesh yenye yezona zinto ziphambili ezichaphazela ukusebenza kokudluliselwa kobushushu kwezinto zokukhusela ubushushu.
Kwizinto zokukhusela ubushushu ezihlanganisiweyo ezincibilikayo, ubukhulu bazo abunampembelelo ingako ekungeneni komoya, ngelixa ukungeneni komoya kweeflakes zefiber zepolyester kukhula ngokukhawuleza njengoko ubukhulu buncipha. Ke ngoko, izinto zokukhusela ubushushu ezihlanganisiweyo ezincibilikayo zinokumelana nomoya ngamandla.

5. Isahluli sebhetri
Izinto ze-diaphragm ziyinxalenye ebalulekileyo yebhetri kwaye zihlala zibekwe phakathi kweepleyiti ezilungileyo nezingalunganga. Umsebenzi ophambili kukukhusela iipleyiti ezilungileyo nezingalunganga ukuqinisekisa ukuhamba kakuhle kwe-dielectric.
Izinto zePolypropylene zinokumelana okuhle kakhulu ne-asidi kunye ne-alkali. Izinto ze-diaphragm zePolypropylene meltblown zineempawu zobukhulu obuncinci be-pore, i-porosity enkulu, ukumelana okuncinci, kunye notshintsho oluhlukeneyo lwemveliso.