Single screw extruder: e loketse thepa e le 'ngoe le phepelo e akaretsang ea liphoofolo le likhoho.
Twin screw extruder: e sebediswa ka kakaretso tlhahisong ya dijo tsa metsing le tsa diphoofolo tse nang le boleng bo phahameng, jwalo ka eel, turtle, le furu ya tlhapi ya bana, hobane ditheko tsa dihlahiswa tsena tse rekiswang mmarakeng di lekane ho lefa ditjeho tsa tlhahiso ya dihlahiswa tse sebediswang. theknoloji ea li-screw tse peli;Ho phaella moo, lijo tse ling tse khethehileng tsa metsing, tse kang lijo tsa metsing (tse bophara ba 0.8 ~ 1.5mm), lijo tse nang le mafura a mangata a metsing, le lijo tse nang le molumo o monyenyane oa tlhahiso empa li lula li fetoha, li boetse li hloka ho hlahisoa ka "twin screw extruder". .
E lokela ho hlakisoa hore liphapang tse ka holimo ha li na bonnete.Mohlala, re sisinya ho sebelisa likurufu tse mafahla ho hlahisa lijo tsa metsing, empa hona joale lik'hamphani tse ngata li sebelisa likurufu tse le 'ngoe ho hlahisa lijo tsa metsing.Ho na le liphapano tsa tšebeliso ea tse peli bakeng sa phepelo ea metsing.Ka bokhutšoanyane, ha ho bapisoa le screw e le 'ngoe, screw double e na le melemo e latelang:
① Ho ikamahanya le maemo ha thepa e tala ho pharalletse, e ka ikamahanyang le ts'ebetso ea viscosity e phahameng, viscosity e tlase, oli e ngata, mongobo o phahameng kapa viscosity, mafura, lisebelisoa tse tala tse metsi haholo, le lisebelisoa tse ling tse ka thellang ka sekoti se le seng (SSE) .
② Ho na le lithibelo tse fokolang mabapi le boholo ba thepa e tala, e ka ikamahanyang le ts'ebetso ea lihlahisoa tse tala ho tloha ho phofo e nyane ho isa ho likaroloana tse mahoashe tsa phofo le ts'ebetso e le 'ngoe ea screw ea thepa e nang le boholo ba likaroloana kantle ho mofuta o itseng.
③ Thepa e phallang ka har'a moqomo e tšoana haholo, 'me mouoane, metsi, joalo-joalo li ka eketsoa ho finyella phello e lakatsehang ea sehlahisoa.
④ Boleng ba ka hare le ba ka ntle ba sehlahisoa bo molemo, bo ka finyellang boemo bo botle haholo ba homogeneous le ho etsa hore sebopeho sa limolek'hule sa thepa se hlophisoe ka tsela e lekanang.Bokaholimo bo boreleli nakong ea ts'ebetso ea extrusion.Likaroloana tsa lihlahisoa li na le ho tšoana ho phahameng le ho tšoana hantle.
⑤ Phello ea ho butsoa le ho homogenization e betere, hangata ka tekanyo ea ho butsoa ha starch e fetang 95%, e nolofalletsang lijo tse entsoeng ka metsing ho boloka botsitso metsing, ho thibela tahlehelo ea limatlafatsi tsa sehlahisoa, le ho ba bonolo ho cheka le ho monya.
⑥ Kotulo e phahameng tlas'a matla a lekanang.Ts'ebetso e ntle ea ho kopanya e nolofalletsa homogenization ka nako ea mocheso o amoheloang ke thepa, e potlakisa tekanyo ea ho hōla ha thepa, e fokotsa ho fetoha ha mocheso oa thepa, 'me e ntlafatsa tlhahiso ea lihlahisoa tsa extruded.
⑦ Mefuta e fapa-fapaneng ea lihlahisoa le ho ikamahanya le maemo li pharaletseng, 'me e khona ho sebetsana le lijo tse nyenyane tsa metsing, oli e ngata ea oli, mongobo o phahameng, lihlahisoa tse khomarelang haholo, le mebala e mengata, mofuta oa sandwich le lihlahisoa tse khethehileng.
⑧ Ts'ebetso ea ts'ebetso e bonolo haholoanyane, 'me lebelo la spindle le ka fetoloa ho latela litlhoko tsa sehlahisoa se sebelitsoeng.Ka lebaka la sebopeho sa ho itlhoekisa, ho hloekisa ho bonolo haholo, 'me ha ho hlokahale ho qhaqha lisebelisoa ka mor'a hore ho sebetsanoe ka' ngoe.
⑨ Likarolo tse tlokotsing li apara hanyane.Maikutlo a fosahetseng a tloaelehileng ke hore screw e le 'ngoe e na le ho fokola ho fokolang.Ha e le hantle, nakong ea ts'ebetso ea li-strusion tsa mafahla, ka lebaka la lipalangoang tse tsitsitseng tsa lipalangoang le litšobotsi tsa phallo ea thepa, ho roala ha thepa holim'a screw le sleeve e ka hare ea barrel e nyenyane ho feta ea screw e le 'ngoe.Le hoja palo ea li-screw e le sete e le 'ngoe, theko ea lisebelisoa e ntse e le tlaase ho feta ea screw e le' ngoe.
⑩ Theko ea tlhahiso e tlase.Ka lebaka la ts'ebetso e ntle ea ts'ebetso ea "twin screw model", ho na le litšenyehelo tse fokolang tsa ho qala, litšila tse fokolang tsa metsi le khase, litšenyehelo tse fokolang tsa basebetsi, bokhoni bo phahameng ba ho fetisa mocheso, chai e ngata, le matšoao a phahameng a tlhahiso ea motlakase ts'ebetsong ea phepelo.Ho phaella moo, litšenyehelo tsa lisebelisoa le tsona li tlaase, 'me litšenyehelo tsa ho qetela tsa tlhahiso li ntse li le tlaase haholo ha li bapisoa le sekoti se le seng.
Ke hantle ka lebaka la melemo e mengata ea "twin screw" ha e bapisoa le screw e le 'ngoe ea ho hlahisa phepelo ea metsing, moo re khothaletsang hore khetho ea "twin screw extruder" e etelletsoe pele ha maemo a lumela likarolong tsohle.
Lintlha tse latelang ke litemoso tse lokelang ho nkuoa ha u sebelisa screw extruder ea mafahla:
1. Tšireletseho ea ts'ebetso:
-Pele o sebelisa "twin screw extruder", hoa hlokahala ho tseba mekhoa ea ts'ebetso ea sesebelisoa, mehato ea ts'ireletso le ts'ebeliso ea lisebelisoa tsa ts'ohanyetso.
-Basebelisi ba lokela ho apara lisebelisoa tse ts'ireletso tse ts'oanang ho qoba likotsi le likotsi tse ka bang teng nakong ea ts'ebetso.
-Etsa bonnete ba polokeho ea tikoloho ea ts'ebetso e potolohileng lisebelisoa le ho thibela likotsi tse kang ho thella le ho thulana.
2. Tlhokomelo ea lisebelisoa:
-Ho boloka le ho boloka "twin screw extruder", ho kenyelletsa ho hloekisa, ho tlotsa, ho tiisa liboutu, joalo-joalo Netefatsa hore lisebelisoa li maemong a matle a ho sebetsa.
- Kamehla hlahloba likarolo tse aparoang habonolo tse kang li-screw, li-washer le likopano, 'me u li nkele sebaka ka nako ho netefatsa ts'ebetso e tloaelehileng ea lisebelisoa.
-Theha merero ea tlhokomelo e tsamaellanang e ipapisitse le khafetsa ea tšebeliso ea lisebelisoa le tikoloho ea ts'ebetso ho netefatsa ts'ebetso e tsitsitseng ea nako e telele ea lisebelisoa.
3. Ho ikamahanya le maemo a lisebelisoa tse tala:
-Mechini ea li-screw puffing ea Twin e na le litlhoko tse phahameng tsa lisebelisoa tse tala, 'me lisebelisoa tse fapaneng tse tala li ka hloka liparamente tse fapaneng tsa ts'ebetso le mekhoa ea ts'ebetso.
-Ha u khetha lisebelisoa, hoa hlokahala ho etsa bonnete ba hore mohlala le litlhaloso tsa lisebelisoa li loketse theknoloji e hlokahalang ea ho sebetsa e itšetlehileng ka litšobotsi tsa lisebelisoa tse tala le litlhoko tsa ho sebetsa.
4. Taolo ea mocheso le lebelo:
-Mocheso le lebelo la ho potoloha ke li-parameter tsa bohlokoa tse amang phello ea ts'ebetso ea twin screw extruder, 'me li hloka phetoho le taolo e utloahalang.
-Taolo ea mocheso e lokela ho fetoloa ho latela lisebelisoa tse fapaneng tse tala le litlhoko tsa ts'ebetso.Mocheso o feteletseng o ka lebisa ho butsoitseng ho feteletseng kapa ho chesoa ha thepa e tala, ho ama boleng ba sehlahisoa.
-Taolo ea lebelo la ho potoloha le eona e hloka ho lokisoa ka mokhoa o utloahalang ho latela lisebelisoa tse tala le litlhoko tsa ts'ebetso.Lebelo le phahameng kapa le tlase la ho potoloha le ka ama phello ea ts'ebetso le boleng ba sehlahisoa.
5. Bongata ba thepa le taolo ea tšebetso:
-Taolo ea bongata ba thepa e hloka ho lokisoa ho latela litlhaloso tsa lisebelisoa le litšobotsi tsa thepa e tala.Bophahamo bo feteletseng ba thepa bo ka baka tšitiso ea lisebelisoa, athe molumo o tlase haholo o ka fokotsa ts'ebetso ea ts'ebetso.
-Taolo ea ts'ebetso e hloka tlhophiso e utloahalang ea tatellano ea ho fepa le ho ntša lihlahisoa tse tala, ho netefatsa ho aroloa ha thepa e sa tšoaneng le ho tsoa ka mokhoa o tloaelehileng oa tlhahiso, le ho qoba ho thibela le ho kopanya liketsahalo.
6. Ho hloekisa le bohloeki:
-Ha u sebelisa li-scruder tse mafahla, tlhokomelo e lokela ho lefshoa ho bohloeki le tsamaiso ea bohloeki ea lisebelisoa, 'me ho hloekisa kamehla masala le lerōle ka har'a thepa ho lokela ho etsoa ho thibela tšilafalo ea sefapano le kholo ea baktheria.
Nako ea poso: Jun-29-2023