Twin Screw Extruder Basics le Mokhoa oa ho sebetsa
Tafole ea likateng
Twin Screw Extruder Basics le Mokhoa oa ho sebetsa
A mafahla a sekoti extruder e na le dikurufu tse pedi tse ohlang mmoho ka hara moqomo. Sekoti se seng le se seng se na le dikarolo tse thellang kutung ya yona seo se lekana hantle feela. Sena se thusa li-screw ho tsamaea hantle le ho fana ka taolo e ntle. Moralo ona o o lumella ho kopanya le ho sebetsana le lintho hantle. Likhoebo tse ngata, joalo ka dipolasetiki le dijo, sebelisa mochine ona ho etsa lihlahisoa. Haeba u batla ho sebelisa extruder, u lokela ho ithuta lintho tsa motheo. Hangata batho ba bacha ba na le sena bothata ka mocheso le ho arola mefuta ea li-screw tse le 'ngoe le tse peli.
Lintlha tsa bohlokoa
A mafahla a sekoti extruder e sebelisa likurufu tse peli tse phethohang hammoho. Li-screws tsena li kopanya le ho sebetsa lisebelisoa hantle haholo. Sena se etsa hore mochini o be moholo bakeng sa lipolasetiki le liindasteri tsa lijo.
Mochine ona o kopanya hantle le ho laola mocheso ho feta a sekrufuru se le seng sa extruder. E thusa ho etsa lihlahisoa tse ntle le ho boloka matla.
Ho tseba likarolo, joalo ka li-screw le libarele, e o thusa ho fetola le ho ntlafatsa extruder. Sena se o lumella ho e sebelisa bakeng sa lisebelisoa le mesebetsi e fapaneng.
O ka fetola hore na o fepa lisebelisoa kapele hakae le ho beha libaka tsa mocheso. Sena se etsa hore "twin screw extruder" e sebetse hantle le ho boloka boleng ba sehlahisoa bo tsitsitse.
Ho khetha "twin screw extruder" e nepahetseng, joalo ka ho potollana kapa ho bilika, e bohlokoa. E ka fetola tsela eo mochine o tsoakang hantle ka eona le haeba e sebetsa bakeng sa lisebelisoa tse itseng.
What Is Twin Screw Extruder
Tlhaloso ea Motheo
A mafahla a sekoti extruder ke mochini o nang le likurufu tse peli tse phethohang ka hare ho moqomo. U kenya lisebelisoa tse tala ka har'a moqomo. Li-screws li sutumelletsa thepa pele. Ha lisebelisoa li ntse li tsamaea, li-screw tse kopanyang, qhibilihisa, le ho li bōpa. Moralo ona o o lumella ho laola ho kopanya le mocheso hamolemo. U ka sebelisa a mafahla a sekoti extruder bakeng sa mesebetsi e mengata, joalo ka ho etsa polasetiki, dijo, kapa lik'hemik'hale.
Maikutlo a mantlha a mochini a mafahla a sekoti extruder thusa ho fumana litholoana tse ntle. Tafole ke ena e hlalosang mehopolo ena:
Molao-motheo
Tlhaloso
Mokhoa oa ho feptjoa ke tlala
E u lumella ho fepa lisebelisoa ka lebelo la hau ntle le ho fetola tlhahiso.
Phetiso e ntle
E tsamaisa thepa hantle, kahoo u se ke ua fumana li-blockages kapa li-slips.
Sekhahla se tlase sa ho kuta
E u fa taolo e ntle ea mocheso le khatello ea maikutlo linthong tse bonahalang.
Taolo ea boholo
E boloka phallo e tsitsitse, e ntlafatsang boleng ba sehlahisoa sa ho qetela.
Ho kopanya hantle
E kopanya lisebelisoa hantle ntle le ho li chesa.
Matla a matla
E sebelisa matla a fokolang, kahoo o boloka matla.
U tla bona hore a mafahla a sekoti extruder e boloka disebediswa ka hare ho nako e kgutshwane le e lekanang. Sena se thusa ho emisa tšenyo ea thepa. Mochine o boetse o kopanya le ho qhibilihisa thepa hantle haholo. Sena ke sa bohlokoa haeba u batla ho fetola kapa ho ntlafatsa polasetiki. Ho fapana le mechine e le 'ngoe ea screw, li-fin screw extruders sebelisa "intermeshing screws".. Sena se bolela hore li-screw li sebetsa 'moho ho tsamaisa thepa pele. Ha ba sebelise likhohlano feela.
Twin Screw vs. Screw e le 'Ngoe
U ka botsa kamoo a mafahla a sekoti extruder e fapane le screw extruder e le 'ngoe. Phapang e kholo ke hore na mochini o mong le o mong o kopanya le ho tsamaisa thepa joang. Sekurufu se le seng sa extruder se na le screw e le 'ngoe feela ka har'a moqomo. E bonolo ebile e bonolo ho e sebelisa. Empa e ke ke ea kopanya lisebelisoa hammoho le a mafahla a sekoti extruder.
Liphapang tse kholo lipakeng tsa mefuta ena e 'meli ke tsena:
U ka laola hore na li-screw li sebelisa matla a makae, kahoo u se ke ua senya boitsebiso boo.
The intermeshing screws a mafahla a sekoti extruder etsa motsoako o matla le ho duba. Sena se o thusa ho kopanya li-additives le li-filler hantle.
Li-extruder tsa screw tse le 'ngoe li ntle bakeng sa ho kopanya ha motheo, empa ba na le bothata ba ho kopanya ka thata.
Tafole e ka tlase e bontša kamoo mechine e 'meli e fapaneng ka litsela tsa bohlokoa:
Sebopeho
Twin Screw Extruder
Single Screw Extruder
Katleho
Tlhahiso e phahameng le ts'ebetso e potlakileng
Ts'ebetso e tlase
Ho Kopanya Bokgoni
Ho kopanya ho matla le ho etsa polasetiki
Ho kopanya ha motheo feela
Tšebeliso ea Matla
Matla a tlase ka yuniti ea sehlahisoa
Matla a phahameng ka yuniti ea sehlahisoa
Sebaka sa Kopo
E sebetsa bakeng sa mefuta e mengata ea lihlahisoa
E lekanyelitsoe lits'ebetsong tse bonolo
U tla fumana hore a mafahla a sekoti extrudere sebetsa hantle ebile e boloka matla. Ka mohlala, sekurufu se le seng sa extruder sebelisa ka 900-1500 kJ ea matla bakeng sa k'hilograma e 'ngoe le e 'ngoe ea thepa. A mafahla a sekoti extruder hloka feela mabapi 400-600 kJ bakeng sa chelete e lekanang. Sena se bolela hore o ka sebetsana le lisebelisoa tse ngata le ho sebelisa chelete e nyane ho matla.
Keletso: Haeba o hloka ho kopanya lisebelisoa tse fapaneng kapa ho eketsa li-fillers, a mafahla a sekoti extruder e tla u fa liphetho tse ntle le lihlahisoa tsa boleng bo holimo.
Likarolo tsa Mochini oa Twin Screw Extruder
Mochini oa mafahla a screw extruder o na le likarolo tse ngata tsa bohlokoa. Likarolo tsena li sebetsa 'moho ho sebetsa thepa. U lokela ho tseba likarolo tsena ho utloisisa hore na mochine o sebetsa joang. Ho li tseba ho u thusa ho fetola mochini bakeng sa mesebetsi e fapaneng.
Screws le Barrel
Li-screws ke karolo e ka sehloohong ea mochini oa twin screw extruder. Ba kopanya lisebelisoa ebe ba li isa pele. U ka khetha e fapaneng meralo ea screw, joalo ka ho potollana kapa ho bilika. Sena se o nolofalletsa ho bapisa li-screw le lisebelisoa tseo u batlang ho li sebelisa. Moqomo o pota-pota li-screw ebe o li tšoara hantle. E sireletsa li-screws hore li se ke tsa senyeha 'me e thusa ho laola mocheso. Boholo ba li-screws le libarele li entsoe ka tshepe e matla. Tšepe ena e ka sebetsana le mocheso o phahameng le lisebelisoa tse thata.
Karolo
Mosebetsi
Screw Design
E kopanya le ho tsamaisa thepa; e ka etsoa bakeng sa mekhoa e fapaneng.
Moqomo
E tšoara li-screw, e laola mocheso, le ho sireletsa kgahlanong le ho aparoa.
Keletso: O ka fetola setupo sa screw le sebopeho sa moqomo ka mochini oa mafahla a screw extruder. Sena se etsa hore ho be bonolo ho sebetsana le lisebelisoa tse ngata le ho etsa lihlahisoa tse fapaneng.
Ho fepa le ho qhala
The mokhoa oa ho fepa e tlisa lisebelisoa tse tala mochining oa twin screw extruder. U ka sebelisa li-feeders tse khethehileng, joalo ka mefuta ea volumetric kapa gravimetric. Li-feeders tsena li u thusa ho laola hore na ke lintho tse kae tse kenang. Mekhoa e metle ea ho fepa e boloka phallo e tsitsitse 'me e emisa ho thibela. Sistimi ea ho lahla e ntša sehlahisoa se felileng ka har'a mochini. Haeba u theha ho fepa le ho ntša hantle, o ka fumana tlhahiso e eketsehileng le ho boloka matla.
Phepo e tsitsitseng e emisa ho phahama le ho boloka mochini oa twin screw extruder o sebetsa hantle.
Li-feeders tsa vibratory li etsa lerata le fokolang 'me li bonolo ho li hloekisa.
Sebopeho le lebelo la likurufu sebakeng sa phepelo li u thusa ho laola hore na ke lintho tse kae tse kenang.
Ho futhumatsa, Ho phodisa, le Venting
U lokela ho laola mocheso ka hare ho mafahla screw extruder mochine. Lifuthumatsi, joalo ka lihitara tsa barrel kapa lihitara tsa ceramic, futhumatsa mochine ka potlako le ka ho lekana. Lijakete tse pholileng kapa mekhoa ea metsi e thibela mochine hore o se ke oa chesa haholo. O ka fetola libaka tsa ho futhumatsa le ho futhumatsa hore li lekane lisebelisoa tsa hau.
Ho kenya moea le hona ho bohlokoa. E tlosa mongobo le likhase ha thepa e qhibiliha. Mohato ona o boloka sehlahisoa sa ho qetela se le matla 'me se se na likoli. Haeba u sebelisa thepa e hlokolosi, moea o emisa mathata joalo ka matheba a fokolang kapa lipudula.
Mokhoa oa ho futhumatsa
Melemo
Mocheso oa moqomo
Ho futhumatsa ka potlako, taolo e nepahetseng ea mocheso
Mofuthu oa ceramic
E tšoarellang, e ntle bakeng sa mocheso o phahameng
Mofuthu oa motlakase oa motlakase
E boloka matla, e thibela ho chesa haholo sebakeng
Mochini oa twin screw extruder o khethehile hobane o ka fetola likarolo tsa ona. U ka fetola li-screw, meqomo, le li-feeders ho sebetsana le lisebelisoa tse ncha kapa ho etsa lihlahisoa tse betere. Sena se etsa hore mochini o be le thuso ho liindasteri tse ngata.
Kamoo Extruder e Sebetsang Kateng
Ha u tseba kamoo a mafahla a sekoti extruder mesebetsi, o ka e sebelisa hamolemo. Mokhoa ona o na le mehato e seng mekae e meholo. Mohato o mong le o mong o etsa ntho ea bohlokoa. Karolo e 'ngoe le e' ngoe ea mochini e thusa ho fetola thepa e tala hore e be lihlahisoa tse felileng.
Ho Fepa Lintho Tse Molemo
Ea pele, o eketsa lisebelisoa tse tala tse kang li-pellets tsa polasetiki kapa li-powders. Hopper e ka holimo 'me e tšoere lisebelisoa tsena. Matla a khoheli a hulela lintho ka har'a moqomo. Li-screw li qala ho bilika le ho tšoara thepa. Ba e hulela pele ka moqomo.
Kenya lintho tse tala ka har'a hopper.
Thepa e oela ka har'a moqomo.
Li-screws li nka thepa ebe li e isa pele.
Keletso: Ho fepa lintho ka mokhoa o tsitsitseng ho boloka lintho li tsamaea hantle. Li-feeders tse khethehileng li u thusa ho laola hore na ke lintho tse kae tse kenang.
Ho kopanya le ho qhibiliha
Ha thepa e ntse e tsamaea, dikurufu tsa pepeta le ho kopanya. Li-screws li kopane haufi-ufi. Sena se thusa ho kopanya tsohle hantle, le haeba o eketsa li-fillers. Moqomo oa chesa, 'me li-screws li etsa khohlano. Mocheso le khatello li qhibilihisa thepa.
Li-screws li kopanya thepa ka matla. Sena se etsa hore motsoako o be bonolo, esita le ka li-additives tse thata.
Thepa e qhibiliha 'me e fetoha e bonolo le e lekaneng.
Hlokomela: U ka fetola mocheso likarolong tse fapaneng tsa barrel. Sena se o thusa ho boloka thepa e bolokehile mochesong o mongata haholo.
Tlhahiso ea Sehlahisoa
Ka mor'a ho qhibiliha le ho kopanya, dikurufu di sututsa thepa ho isa qetellong. Thepa e qhibilihisitsoeng e kena ka har'a phala. Lefu le e bopa hore e be melamu, maqephe, kapa li-pellets. Ha thepa e tlohela lefu, e a fola mme e be thata.
Li-screws li sutumelletsa lintho tse qhibilihisitsoeng ho isa lefung.
Thepa e feta ka har'a lefu mme e nka sebopeho sa eona.
Sehlahisoa se pholile 'me se tiile.
U ka bona se etsang hore a mafahla a sekoti extruder e khethehileng mona. Li-screws li boloka phallo e tsitsitse, kahoo sehlahisoa se lula se tšoana. O ka fetola likarolo tsa screw kapele. Sena se o lumella ho etsa lihlahisoa tse ncha kapa ho sebelisa lisebelisoa tse ncha kapele.
Mona ke tafole e bonts'ang litsamaiso tse khethehileng tseo u li fumanang ka mafahla a sekoti extruder:
Sebopeho
Molemo
Taolo e ntlafalitsoeng ea mocheso
E boloka thepa ka mocheso o nepahetseng hohle
Modular screw le moralo oa moqomo
E o lumella ho ikamahanya le lisebelisoa le lihlahisoa tse fapaneng
Mokhoa o matla oa ho kopanya le ho pompa
E u fa li-blends le phallo e boreleli
Ho lokisa kapele bakeng sa lihlahisoa tse ncha
E boloka nako mme e eketsa maemo a bonolo
Keletso: Ho fetola likarolo tsa screw le ho laola mocheso libakeng ho u fa taolo e eketsehileng. Ke ka lebaka lena batho ba bangata ba khethang ho mafahla a sekoti extruder bakeng sa ts'ebetso ea lintho tse bonahalang.
Joale u ka bona hore na mokhoa ona o tloha ho fepa ho ea ho sehlahisoa se felileng. Mohato o mong le o mong o sebelisa likarolo tse khethehileng tsa mafahla a sekoti extruder ho u fa litholoana tse ntle.
Melemo le Lisebelisoa
Melemo ea Bohlokoa
Haeba u sebelisa "twin screw extruder"., o fumana dintho tse ngata tse molemo. Likurufu kopanya lisebelisoa hantle haholo. Sena se thusa ho etsa hore lihlahisoa tsa polasetiki li be matla le ho lekana. O ka eketsa li-fillers kapa mebala, mme ba tla kopanya hantle.
Ho kopanya ho molemo: Li-screw li sebetsa e le sehlopha. Ba kopanya thepa hantle le ka potlako.
Boiketsi ba ho itlhoekisa: Mochine o itlhoekisa ha o ntse o sebetsa. Ha ho hlokahale hore u eme hangata ho hloekisa kapa ho fetola thepa.
Ho kenya moea hantle: Maqhubu a mangata a ntša metsi le likhase. Ka mohlala, masoba a mararo a ka khaola lintho tse sa batleheng ho tloha 50% ho tlase ho 0.1%. Sena se boloka lihlahisoa tsa hau li le matla 'me se emisa liphoso.
Phaello e phahameng: U ka etsa boitsebiso bo bongata ka nako e khutšoanyane. Sena se thusa mosebetsi oa hau ho tsamaea kapele.
Moqapi o feto-fetohang: O ka fetola likarolo tsa screw bakeng sa mesebetsi e fapaneng kapa thepa.
Hlokomela: Litiiso li tlameha ho lekana hantle feela. Haeba tiiso e le thata haholo kapa phallo e potlakile haholo, thepa e ka thiba leqhubu. Kamehla hlahloba litlhophiso tsa hau ho fumana liphetho tse ntle.
Lisebelisoa tse Tloaelehileng
Li-extruder tse peli tsa screw li sebelisoa liindastering tse ngata. Ba kopanya thepa hantle 'me ba sebetsa ka potlako. Mechini ena e ntle bakeng sa ho etsa lipolasetiki le lijo. Tafole e ka tlase e bontša lisebelisoa tse ling tse tloaelehileng:
Sebaka sa Kopo
Tlhaloso
Ho Etsa Lithaere
E etsa lithaere le rabara ka motsoako o matla.
Metsoako ea Polymer
E kopanya li-polymer tse fapaneng le li-filler bakeng sa liphetho tse lekanang.
Phetoho ea Resin
E eketsa lintho ho fetola tsela eo li-polymer li sebetsang ka eona.
Phetoho ea Lijo
Ho pheha le ho bopa lijo tse entsoeng ka starch.
Recycling
E qhibilihisa le ho fetola lipolasetiki bakeng sa tšebeliso e ncha.
Lihlahisoa tsa Sebōpeho
E theha likarolo tse rarahaneng tsa likoloi le lisebelisoa tsa bongaka.
E bataletseng & Lihlahisoa tsa Foam
E etsa thepa ea ho paka le ho tenyetseha ka polasetiki.
U ka boela ua sebelisa mechine ena ho etsa meriana, ho kopanya li-polymers, le ho etsa lintho ka linako tsohle. Ho kopanya ha bona ka matla le mosebetsi o potlakileng o ba etsa khetho e bohlale bakeng sa mesebetsi e mengata.
Mefuta ea Twin Screw Extruders
Ho na le tse fapaneng mefuta e meng ea li-screw screws. Mofuta o mong le o mong o molemo bakeng sa mesebetsi e itseng. U hloka ho tseba hore na e mong le e mong o sebetsa joang ho khetha extruder e nepahetseng.
Ho potoloha ka kopanelo
Ho a e potolohang ka kopanelo, likurufu ka bobeli li bilika ka tsela e tšoanang. Sena se etsa hore li-screw li kopane hantle. Li-screws li ama le ho tsamaisa lintho ho tloha ho e 'ngoe ho ea ho e' ngoe. Sena se thusa ho qhaqha li-clumps le ho kopanya lintho tse kang li-filler kapa li-additives.
Mofuta o potolohang o kopane hantle hobane li-screw li sebetsa hammoho haholoanyane.
Ho kuta e phahameng bohareng ho pshatla likotoana tse kholo.
U ka eketsa li-blocks tsa kneading ho kopanya hantle le ho feta.
Setupo sena se fana ka phallo e tsitsitseng le tlhahiso e ngata.
E sebetsa bakeng sa polasetiki, dijo, le rabara.
U ka e sebelisa ka mefuta e mengata ea thepa.
Keletso: Khetha extruder e potolohang ha u batla ho kopanya ho matla le mosebetsi o potlakileng.
Khahlanong le ho potoloha
Li-extruder tse bilikang li na le likurufu tse fetohang ka litsela tse fapaneng. Mofuta ona o sutumelletsa thepa pele ebe o e tšoara ka bonolo. E ntle bakeng sa lintho tse ke keng tsa nka matla a mangata haholo, joalo ka PVC kapa likhoele tsa cable.
Liaparo tsa cable, tlhahiso e thata ebile e tenyetseha
Li-extruder tse pota-potileng li molemo ka ho fetisisa bakeng sa lintho tse hlokang tlhokomelo e bonolo. U ka etsa lipeipi, maqephe, le likhoele tse nang le mofuta ona.
U ka etsa ts'ebetso e fetang e le 'ngoe, joalo ka extrusion le ente.
Li-setups tse ikhethileng li sebelisoa ho tsa bongaka, koloi, le mesebetsi ea elektronike.
Molemo
Tlhaloso
Eketsa Ho Kopanya le ho Kopanya
Likarolo tse khethehileng tsa screw li thusa ho kopanya ka ho lekana le ho etsa lihlahisoa tse ntle.
Ntlafatsa ho feto-fetoha ha ts'ebetso
U ka sebelisa extruder ka lab kapa lifeme tse kholo.
Ikamahanye le Litlhoko tsa Maraka
O ka fetola setupo sa hau ha indasteri e fetoha.
Hlokomela: Meetso ea modular e u thusa ho tsamaisana le lisebelisoa le lihlahisoa tse ncha. U ka fetola extruder hao ka potlako ntle le ho reka e ncha.
Moralo o mong le o mong oa sekoti sa mafahla o na le melemo ea ona e ikhethang. Haeba u khetha mofuta o nepahetseng, o fumana litholoana tse ntle bakeng sa mosebetsi oa hau.
Joale ua tseba hore na "twin screw extruder" e sebetsa joang. E kopanya lintho hantle, e ba boloka ba bolokehile, mme e etsa lihlahisoa tse ngata. Mochine o entsoe ka thepa e matla joaloka 420 ts'epe e sa beng le mabali. Sena se thusa ho boloka nako e telele. U ka sebelisa mochine ka linako tsohle 'me ua boloka chelete. Likhoebo tse ngata li sebelisa mochini ona ho o sebelisa hape, dijo, le dipolasetiki. Haeba u batla ho ithuta haholoanyane, sheba lihokelo tsena:
E thata haholo, ha e ruse, mme e nka nako e telele
U ka bala lingoliloeng tsa sekolo kapa lipatlisiso ho bona hore na li-fin screw extruder li thusa joang ho e sebelisa hape le ho etsa lisebelisoa tse ncha.
LBH
Ke lisebelisoa life tseo u ka li sebetsanang le mafahla a screw extruder?
U ka sebetsana le li-plastiki, dijo, lik'hemik'hale, esita le thepa e sebelisoang hape. Mochine o sebetsa ka phofo, li-pellets, le makumane. U ka boela ua kopanya li-fillers, mebala, kapa litlatsetso.
U hloekisa "twin screw extruder" joang?
Li-extruder tse ngata tsa mafahla li na le ketso ea ho itlhoekisa. O ka tsamaisa thepa ea ho hloekisa ka mochini. Bakeng sa tlhoekiso e tebileng, o ka tlosa li-screws le barrel.
Ke hobane'ng ha u lokela ho khetha "twin screw extruder" holim'a screw extruder e le 'ngoe?
O fumana hantle ho kopanya, ts'ebetso e potlakileng, le taolo e eketsehileng. Li-extruder tse peli tsa screw li sebetsana le metsoako e thata le lisebelisoa tse bobebe. U ka boela ua fetola likarolo tsa mesebetsi e fapaneng.
A na u ka fetola tlhahiso ea "twin screw extruder".?
Ee! O ka fetola lebelo la screw, mocheso, le sekhahla sa ho fepa. Sena se u fa monyetla oa ho laola hore na u etsa sehlahisoa se kae le boleng ba sona.
