Conical Twin Screw Extruder vs Parallel Twin Screw Extruder ya PVC

Conical and parallel twin screw extruders: tikufanizira chiyani?

Kodi conical twin screw extruder ndi chiyani?

Zomangira zomangira zapawiri zimakhala ndi zomangira zomwe m'mimba mwake mwake zimasinthira kutalika kwake. M'makonzedwe ochiritsira a PVC omwe akukambidwa apa, malekezero a chakudya ndi okulirapo ndipo kumapeto kwake ndi kocheperako. Kufotokozera ngati "conical screw extruder" kumasiyabe komwe kumazungulira, makonzedwe a intermeshing ndi ntchito kuti zitsimikizidwe.

Kodi parallel twin screw extruder ndi chiyani?

Kufanana twin screw extruder ili ndi khwangwala zofananira ndi m'mimba mwake mosalekeza m'mbali mwa gawo lokonzekera. Geometry ya chaneli imatha kusintha. Mawu oti "parallel" samakuwuzani ngati zomangira zimazungulira limodzi kapena mbali zina, kapena ngati makinawo amapangidwa kuti aziphatikiza kapena kutulutsa mwachindunji.

Nastaj ndi Wilczyński amasiyanitsa zozungulira zozungulira komanso zozungulira zozungulira za twin-sctrusionKafukufuku wa 2024 pa counter-rotating extrusion scale-up. Kukambitsirana kwawo kumazindikiritsa kukonzedwa kwa ufa wa PVC ngati ntchito yofunika kwambiri yozungulira. Kusiyanitsa kwa ndondomeko ndiko poyambira kufananitsa kopindulitsa.

Sungani ntchito yogulayo nthawi zonse

Kwa PVC dry-blend extrusion, yerekezerani masinthidwe oyenera ndi ofanana pansi pazofunikira zomwezo. Osasamutsa mawu ophatikizira othamanga kwambiri kupita ku makina a chitoliro ozungulira chifukwa onse ali ndi zomangira zofananira. Ngati ntchito yanu ndi yopanga pawiri, gwiritsani ntchito zathu zambirikalozera wosankha zakuthupi ndi extrusion-systemkukhazikitsa ndondomeko poyamba.

Kwa mzere watsopano, wothandizira makina ayenera kufotokozera kasinthidwe kachitidwe kake. Kwa zida zosinthira, timayamba ndi makina oyika ndi zojambula zake. Mawu akuti screw-and-mbill sangatsimikizire pawokha ngati makina osiyanasiyana ndi oyenera.

Momwe geometry, mtunda wapakati ndi kukula kwachitsanzo zimasiyana

Kusiyanitsa kothandiza kwa geometric ndiko komwe zinthu zili ndi malo komanso komwe msonkhano uyenera kukwanira. Mu ochiritsira conical makonzedwe, awiri ndi kulekana kwa wononga nkhwangwa zosiyanasiyana pamodzi processing kutalika. M'njira yofanana, nkhwangwa zimakhala zofanana. Palibe kulongosola kulikonse komwe kumatanthawuza kuya kwa tchanelo, kukanikiza kwanuko, chilolezo chogwirira ntchito kapena kukakamizidwa kwathunthu.

Awiri awiri si kuchuluka kwa mphamvu

Zathuconical twin screw barrel rangeamalemba anthu awiriawiri kuphatikiza Φ65/Φ132 ndi Φ80/Φ156. Musanayambe kuyitanitsa, tsimikizirani chomwe chimamaliza chojambulacho chikuzindikiritsa ndi kutalika kwa processing. Osawerenga nambala yachiwiri ngati m'mimba mwake ya chitoliro kapena chiŵerengero cha kutalika kwa m'mimba mwake. L/D alibe dimensionless; m'mimba mwake amanyamula unit kutalika.

ThePVC chitoliro parallel screw mbiyamndandanda wamasamba Φ45 mpaka Φ150 mm ndi L/D 32 mpaka 38, mwamakonda. Izi ndi zosankha zomwe zasindikizidwa. Sakhazikitsa kukula kwa conical kofanana kapena kutulutsa kwapadziko lonse lapansi.

Phatikizani dongosolo loyendetsa ndi chithandizo

Titha kufunsa masanjidwe a gearbox, tsatanetsatane wolumikizana ndi envulopu yovomerezeka yogwirira ntchito limodzi ndi chojambula chojambula. Kukhala ndi danga kapena kukula kokulirapo kwa chakudya sikulowa m'malo mwa torque yotsimikizika, liwiro ndi tsatanetsatane. Fananizani malingaliro athunthu m'malo mongoyerekeza mphamvu zamakina kuchokera pa chithunzi.

Conical vs parallel twin screw extruder: kufananitsa ngati-ngati

Masinthidwe onsewa akuyenera kuwunikidwa akafunsidwa kuti agwire ntchito yomweyo ya PVC. Ubwino wawo womwe ungakhalepo umangokhala wothandiza pambuyo poti woperekayo azindikira mawonekedwe enieni a screw, makonzedwe a chakudya, kuyendetsa ndi momwe amagwirira ntchito. Tingagwiritse ntchito tebulo ili m'munsimu kuti tifananize malingaliro, m'malo mopatsa wopambana wapadziko lonse pamzere uliwonse.

M'mawonekedwe akekuyerekeza kufanana ndi conical extrusion, S. Seifert amawunika kasinthidwe, nthawi yokhalamo ndi kumeta ubweya motsutsana ndi ntchito zomaliza za PVC. Izi zimathandizira kufananitsa kwapadera; sichipereka gawo lonse la kukula kwa chitoliro kapena gawo lopulumutsa mphamvu pakugula kwatsopano.

Momwe mapangidwe anu a PVC asinthira chisankho

Yambani tsatanetsatane ndi zomwe zimalowa mu makina ndi zomwe ziyenera kusiya kufa. "PVC yolimba" ndi yotakata kwambiri kufananiza malingaliro awiri. Titha kupempha mtundu wa utomoni, mtundu wa filler ndikuyika, stabilizer ndi lubrication system, zobwezeretsedwanso, mawonekedwe a chakudya ndi njira yokonzekera. Lembani kubwereza kwa maphikidwe kuti mayesero ndi mawu afotokoze zomwezo.

Sungani mayunitsi omveka bwino

Kuyika mu phr kumatanthauza magawo pa magawo zana a utomoni, osati kulemera kwa gawo lonse. Monga chitsanzo chosavuta cha kapangidwe kake, 100 misa ya resin kuphatikiza magawo 50 odzaza, popanda zosakaniza zina, zili ndi 50 ÷ 150 = 33.3% zodzaza ndi misa yonse. Kuonjezera zosakaniza zina kumasintha chiwerengerocho. Masamu awa samakhazikitsa kutsitsa kotetezeka pamakina aliwonse.

Funsani momwe kusasinthasintha kwa chakudya kudzawunikidwa. Kusintha kwa kachulukidwe kachulukidwe kapena kukonzekera chakudya kuyenera kulembedwa m'malo mobisika kuseri kwa dzina losasinthika la polima. Ngati wogulitsa akuwonetsa ma geometry osiyanasiyana, funani kufotokozera komwe kumalumikizidwa ndi zomwe zidadziwika komanso ntchito yopanga.

Fotokozerani fusion yothandiza ndi zenera lolowera

Nastaj ndi Wilczyński'skafukufuku wozungulira wa extrusionimasamalira kutentha, kusungunuka ndi kukula kwake monga zolinga zowonjezera. Limafotokozanso kutayikira umayenda mu intermeshing kachitidwe. Chifukwa chake sitinganene njira yonse kuchokera pa voliyumu yopanda kanthu, kapena kutchula liwiro la screw popanda kuganizira zakukula kwazinthu pagawo.

Gwirizanani kuti ndizovuta ziti ndi kuwerengera kwa kutentha kwa zinthu zomwe zidzatengedwe, komwe zidzatengedwera komanso momwe zitsanzo zamalonda zidzagwirizanirana ndi zowerengerazo. Kuyika kwa migolo kokha sikumapereka mbiri imeneyo. Zenera lothandiza limawonetsa momwe chinthu chofunikira chimadutsa, osati pomwe makinawo akugwirabe ntchito.

Gwiritsani ntchito zoyezetsa zamalonda mkati mwazomwe zili

ASTM D2152-23imayankhulira kukwanira kwa kuphatikizika mu chitoliro cholimba cha PVC ndi zomangira zowumbidwa ndi kumiza kwa acetone. Zoletsa zake zosindikizidwa zimati sizingathe kusiyanitsa kuwonongeka kwa kutentha ndi kusakanikirana kokwanira ndipo sizilowa m'malo mwa mayeso ena akuthupi kapena amankhwala. Si satifiketi yamtundu wazinthu zonse. Kuyesa kulikonse kwa zosungunulira kumakhala ndi anthu oyenerera komanso zowongolera zotetezedwa.

Kwa polojekiti yolimba yolimba ya khoma la PVC-U,ISO 1452-2: 2009imatchula mawonekedwe a chitoliro ndi magawo oyeserera ogwirizana. Simasankha screw geometry. Gwirizanani ndi mulingo wazinthu zomwe zikugwiritsidwa ntchito, zosindikiza ndi zofunikira za msika musanasankhe zomwe zimavomerezedwa.

Kukula kwa extruder mozungulira zomwe zingagulitsidwe

Zolinga zopangira ziyenera kubwera kuchokera ku dongosolo lazogulitsa. Titha kufunsa kuchuluka kofunikira, osati chitoliro chachikulu kwambiri kapena nambala yamakatalogu apamwamba kwambiri. Mzere womwe umakwaniritsa malo amodzi otulutsa kwambiri ungafunikebe kuunikanso kwina kwazinthu zazing'ono, kugwira ntchito pang'onopang'ono kapena kupangidwa kosiyana.

Tanthauzirani liwiro la mzere kukhala mayendedwe ambiri

Pachinthu chopitilira, chulukitsani misa yeniyeni pa mita ndi liwiro la mzere ndikusintha mphindi kukhala maola. Gwiritsani ntchito kulemera kwa chinthu chomwe mwatchulidwa kapena muyeso wotsimikizika. Osatengera kuchuluka kwapang'onopang'ono kapena makulidwe a khoma powerengera zofunikira pakugula.

Kuthamanga kwazinthu zofunikira (kg/h) = misa pa mita (kg/m) × liwiro la mzere (m/mphindi) × 60

Kwa chitoliro chowonetsera cholemera 2.0 kg/m pa 3.0 m/min, chandamale ndi 360 kg/h. Pa 4.0 m/mphindi, mankhwala omwewo amafunikira 480 kg/h. Izi ndizomwe zimaganiziridwa pokonzekera, osati zotsatira za mayeso a Nanhaiya. Palibe kuwerengera komwe kumatiuza ngati makina ena owoneka bwino kapena ofananira adzakwaniritsa zofunikira.

Yang'anani mzere wonsewo

Unikaninso kusakaniza ndi kukonza chakudya kumtunda, kenako kusanja, kuziziritsa, kukokera ndi kudula kunsi kwa mtsinje. Funsani ogulitsa zida kuti atsimikizire zomwe akufuna kupanga. Ngati alipo kuzirala gawo kokha amathandiza panopa mankhwala liwiro, kuvomereza zambiri extruder linanena bungwe si amavomereza apamwamba mzere liwiro.

Ntchito yokakamiza imakhalanso mu kuyerekeza. Kusintha mankhwala kapena kufa kungasinthe ntchito ya makina ngakhale pamene kg/h yofunidwayo imakhalabe chimodzimodzi. Jambulani malo ogwiritsira ntchito ndi kuyeza ndi malo aliwonse opangira kuti zomwe zikunenedwazo zikhalebe zomveka.

Fananizani zopanga

Titha kulemba mwachidule masinthidwe omwe angawonetse mtundu wofunikira ndi chinthu chovomerezeka, ndikufanizira mtengo wake. Osawonjezera chitetezo chokhazikika ndikuyimbira makina osankhidwa. Kuchuluka kulikonse kosungirako kuyenera kugwirizana ndi zomwe zafotokozedwa m'tsogolo, ntchito kapena zofunikira zogwirira ntchito zomwe woperekayo wawunika.

Yerekezerani mphamvu, kuvala ndi ndalama zonse zogwirira ntchito

Chiyerekezo chagalimoto ndi kuchuluka kwa mphamvu, osati bilu yoyezera mphamvu. Pakuyerekeza kothandiza kwa ma twin screw extruder mphamvu, fotokozani zomwe mita imaphatikizapo: kuyendetsa ndi ma heaters, extruder yonse, kapena mzere wonse. Sungani malirewo osasinthika ndikunena ngati zoyambira ndi zokanidwa zikuphatikizidwa.

Gawani mphamvu ndi mankhwala ovomerezeka

Mphamvu zenizeni (kWh/kg zovomerezeka) = mphamvu zoyezedwa panthawiyi ÷ kuvomereza kulemera kwazinthu panthawi yomweyo

Chitsanzo chotsatira cha ola limodzi ndi chongopeka. Otsatira onsewa amagwiritsa ntchito njira zomwezo zovomerezera katundu ndi malire a mita ya mphamvu. Imawonetsa chifukwa chake kuchita bwino kwambiri komanso kuvomerezeka kwa zotulutsa kumatha kubweretsa malingaliro osiyanasiyana.

B amapereka zinthu zovomerezeka kwambiri panthawiyi; A amagwiritsa ntchito mphamvu zochepa pa kilogalamu yovomerezeka. Uku ndikugulitsa malonda, osati umboni woti geometry imapambana. Tchulani mlingo wofunidwa wopangira ndikubwereza kufananitsa kwa malo ogwirira ntchito okhudzana ndi ndondomeko yopangira.

Tchulani chitetezo cha mavalidwe padera

ZathuPVC board conical product pageimatchula 38CrMoAlA ndi njira za chithandizo cha nitriding kapena bimetallic. Zosankha zimenezo sizimakhazikitsa chochulukitsira moyo wautumiki. Titha kufotokoza malo ogwirira ntchito, dongosolo lazinthu ndi zofunikira zowunikira motsutsana ndi mapangidwe enieni ndi malo ovala, m'malo mosankhidwa ndi chizindikiro cha alloy chokha.

Phatikizani zinthu zokanidwa, nthawi yosinthira, kukonza kokonzekera ndi kuchuluka kwa zosintha pakuyerekeza mtengo. Gwiritsani ntchito zolemba zenizeni zogwirira ntchito kapena kuyerekezera kodziwika bwino kwa zolowetsazo. Kutsika mtengo kogulira sikuyankha ngati msonkhano womwe waperekedwawo ukugwirizana ndi zomwe zapangidwa kapena zikugwirizana ndi zida zomwe zayikidwa.

Momwe mungasankhire mapasa wononga extruder pa ntchito yanu ya PVC

Lingaliro lathu ndikusunga ma geometri onse pamndandanda wanthawi yayitali pomwe palibe umboni womwe sunatsatidwepo ndi ndondomeko kapena umboni wamakina. Kenako chotsani masinthidwe osayenera pogwiritsa ntchito pulogalamu yeniyeni. "Chitoliro," "mbiri" ndi "bolodi" amazindikiritsa mabanja mankhwala, osati wathunthu extrusion specifications.

PVC chitoliro extrusion

Timasindikiza onse aPVC chitoliro conical screw mbiyandi aPVC chitoliro parallel screw mbiya. Ichi ndi chifukwa chofanizira masinthidwe, osati lonjezo kuti kukula kulikonse kumagwirizana ndi chitoliro chilichonse. Yambani ndi miyeso yazinthu, kapangidwe kake, ntchito yokakamiza ndi mfundo zokhazikika zomwe zimafunikira.

Tsamba la chitoliro la conical limaphatikizapo magulu ogwiritsira ntchito 16 mpaka 63 mm, 50 mpaka 110 mm ndi 90 mpaka 160 mm. Manambala amenewo amafotokoza ntchito zapaipi zomwe zalembedwa. Iwo si wononga diameters ndipo musati kukhazikitsa chilengedwe pazipita chitoliro kukula kwa makina conical.

Mbiri ndi matabwa

Pa mbiri, phatikizani zojambula za gawo, kulemera kwa mita, makonzedwe a ma calibration ndi zofunikira zovomerezeka. Kwa bolodi, tchulani ngati ili yolimba kapena yachita thovu ndikutanthauzira makulidwe ovomerezeka, kachulukidwe komwe kuli koyenera, pamwamba ndi zofunikira. Kusintha kwa kapangidwe kazinthu kumayenera kuwunikiranso njira yatsopano.

ZathuPVC foam-board screw specification guidechimakwirira m'malo mwachidule mwatsatanetsatane. Titha kusunga kuwunika kwachindunji kwachidziwitsocho kusiyana ndi kufananitsa wamba. Zopangira matabwa zopangidwa ndi PVC zimafunikiranso kuwunikira kwawo; osasintha mawu omaliza kuchokera ku PE- kapena PP-based composite chifukwa zonsezo zimatchedwa WPC.

Nthawi yoti mutsegulenso kusankha

Yang'ananinso momwe maphikidwe, mawonekedwe a chakudya, chandamale chapamwamba kapena dongosolo lazinthu likusintha. Pazosintha zomwe zidachitika kale, cholozera chofananira bwino chiyenera kuwunikiridwa musanapereke malingaliro osintha makina. Kuti muwonjezere ntchito yopanga makina, funsani wopereka makinawo kuti aunikenso mzere wathunthu m'malo molonjeza kusinthaku kudzera pa screw geometry yokha.

Ngati mzere wa conical womwe ulipo uli kale ndi mtundu wofunikira komanso kuchuluka kwa zotulutsa, choyamba tiwunikire cholozera chofananira, osati kugulitsa kutembenuka kofananako ngati kukweza kodziwikiratu. Lingaliro lomwelo likugwiranso ntchito pa mzere wokwanira wofananira. Pantchito yatsopano yopanga, sankhani masinthidwe omwe ali ndi mawonekedwe ogwiritsira ntchito; mtengo wogulira wokwera kapena wokulirapo mwadzina sichiwonetsero chimenecho.

Kodi mungasinthe kapena kusintha screw ndi mbiya zomwe zilipo?

Chokongoletsedwa ndi mbiya yamapasa awiri ndi parallel twin screw barrel sizinthu zosinthika. Musanayambe kukambirana za kutembenuka, pezani kuwunika kwathunthu kwa makina. Makonzedwe otulutsa a Gearbox, maulumikizidwe a shaft, kuyika mbiya ndi kusanja-magawo okonza ndizomwe zili mu ndemangayi, komanso malo odyetserako, mpweya, kutentha ndi kuzizira.

Ndisanayambe amalangiza wononga wononga geometry

Osatengera kusintha ngati kukonza kwapadziko lonse lapansi

Kusintha kulikonse kwa axial kuyenera kutsatira njira ndi malire a wopanga makina. Osasuntha conical seti mpaka zotulutsa ziwonekere. Poyang'anira ndi kuchotsa zomangira, gwiritsani ntchito njira zovomerezeka zodzipatula, kuziziziritsa ndi zokweza ndi anthu oyenerera. Zathukupalana mapasa-screw chilolezo ndi kavalidwe kalozeraikufotokoza momwe mungasankhire zolemba zofananira.

Kodi muyenera kutumiza chiyani pa RFQ ndi kuyesa kupanga?

Chifukwa chiyani sindingavomereze kusinthidwa kwa manambala amakatalogu okha

Konzani ndikutsimikizira zofananira

1. Kutanthauzira mankhwala ndi mapangidwe

   Dziwani zojambula zamalonda, kukonzanso maphikidwe, mawonekedwe a chakudya ndi zofunikira zoyenera. Jambulani zodzaza ndi mayunitsi ake ndikuphatikiza zomwe mukufuna.

2. Tsimikizirani zopinga za mzere

   Tchulani mfundo zovomerezeka zovomerezeka ndikuzindikira momwe angadyetse, kuyendetsa galimoto, kugwiritsa ntchito zida, kuziziritsa, kunyamula ndi kudula zomwe ziyenera kuwathandiza.

3. Onani makina ndi zojambula

   Perekani chizindikiritso cha makina, makonzedwe ozungulira, zojambula zomangira ndi mbiya, zolumikizira pagalimoto, malo olumikizirana ndi okwera ndi miyeso yovala yoyikidwa m'malo.

4. Tanthauzirani kasinthidwe ka munthu aliyense

   Funsani wogulitsa kuti adziwe geometry, zida, malo ogwirira ntchito, zothandizira zofunikira komanso zopatula mawu. Alekanitse kukula kwa gawo lililonse pazosintha zilizonse zamakina.

5. Gwirizanani pazoyeserera ndi zolemba

   Konzani zinthu, mankhwala, nthawi ya zitsanzo ndi malire a mphamvu. Jambulani liwiro, kupanikizika ndi kutentha m'malo otchulidwa, zotuluka ndi zovomerezeka, zokanidwa, momwe mpweya umatulutsira komanso zotsatira zoyeserera.

6. Landirani zoyenera zamakina ndi kupanga padera

   Yang'anani gulu lomwe laperekedwa motsutsana ndi chojambula chovomerezeka, kenako yesani kupanga mogwirizana ndi zomwe mwagwirizana komanso zomwe zatuluka. Sungani zolemba ziwiri zovomerezeka zogwirizana ndi kasinthidwe koyesedwa.

Mafunso omwe amafunsidwa pafupipafupi