Lihlahisoa tsa temo le tse ka thōko, veine, asene le soso ea soya li belisoa ho tloha ho starch, ea lijo-thollo.Ho hloekisoa ha lihlahisoa tsena ke mokhoa oa bohlokoa oa tlhahiso, 'me boleng ba ho hloekisa bo ama ka ho toba boleng ba lihlahisoa.Mekhoa ea setso ea ho hloekisa e kenyelletsa sedimentation ea tlhaho, adsorption e sebetsang, ho hloekisa ka diatomite, ho hloekisa poleiti le foreimi, joalo-joalo Mekhoa ena ea ho hloekisa e na le mathata a itseng ka nako e fapaneng, ts'ebetso, ts'ireletso ea tikoloho le likarolo tse ling, kahoo ho hlokahala hore u khethe mokhoa o tsoetseng pele oa ho hloekisa. mokhoa.
Fiber e se nang letho e ka thibela lintho tse kholo tsa limolek'hule le litšila tse pakeng tsa 0.002 ~ 0.1μm, 'me ea lumella lintho tse nyenyane tsa molek'hule le lintho tse thata tse qhibilihisitsoeng (matsoai a sa tloaelehang) hore li fete, e le hore mokelikeli o tlhotliloeng o ka boloka' mala oa oona oa pele, monko le tatso, 'me o finyelle morero. ea ho thibela mocheso ntle le mocheso.Ka hona, ho sebelisa sefa sekoti sa fiber ho sefa veine, asene, soy sauce ke mokhoa o tsoetseng pele oa ho sefa.
Polyethersulfone (PES) e khethiloe e le lisebelisoa tsa lera, 'me lesela le se nang letho le entsoeng ka fiber ena le na le thepa e phahameng ea lik'hemik'hale, e hanyetsanang le li-hydrocarbon tse chlorinated, ketone, acids le metsoako e meng ea lintho tse phelang,' me e tsitsitse ho acids, metheo, aliphatic hydrocarbons, oli. , lino tse tahang joalo-joalo.Botsitso bo botle ba mocheso, ho hanyetsa hantle mouoane le metsi a chesang haholo (150 ~ 160 ℃), sekhahla sa phallo e potlakileng, matla a phahameng a mochini.Lera la filthara le bonolo ho hloekisoa ka khatello ea kahare e sekoti ea fiber membrane, 'me khetla ea membrane, phala le valve li entsoe ka tšepe e sa hloekang ea 304, e hloekileng ebile e bonolo ho e hloekisa.
Bakeng sa veine, asene, soy sauce ke mefuta e fapaneng ea amino acid, organic acid, tsoekere, divithamini, lintho tse manyolo tse kang joala le ester le metsi motsoako, 'me e amohela cross-flow filtration mokhoa, ka pompo tla hlokeha ho sefa liphaephe tsa metsi ka har'a lera la filtration, lera le tlhotliloeng bakeng sa sehlahisoa se felileng, eseng ka mokelikeli ho ea phala ea concentrate ho khutlela sebakeng se le seng.
Ka lebaka la ho tsoa ha metsi a concentrated, matla a maholo a ho kuta a ka thehoa holim'a lera, kahoo a fokotsa tšilafalo ea lera ka katleho.Karo-karolelano ea sekhahla sa phallo ea mokelikeli o koalehileng ho sekhahla sa phallo ea sehlahisoa se felileng se ka fetoloa ho latela boemo bo ikhethileng ba mokelikeli o tlhotliloeng ho fokotsa tšilafalo ea lera, 'me mokelikeli o koalehileng o ka khutlela sebakeng sa ona sa pele ebe o khutlela sebakeng sa ona sa pele. -kena tsamaiso ea ultrafiltration bakeng sa phekolo ea ho hloekisa.
3 Mokhoa oa ho hloekisa
Sistimi ea ho hloekisa ea fiber e sekoti ke karolo ea bohlokoa ea filthara, hobane bokaholimo ba lera bo tla koaheloa ke litšila tse fapaneng tse koaletsoeng, esita le masoba a membrane a tla koalloa ke litšila tse ntle, tse tla senya ts'ebetso ea karohano. ho hlokahala ho hlatsoa lera ka nako.
Molao-motheo oa ho hloekisa ke hore mokelikeli o hloekisang (o atisang ho hloekisoa metsi a hloekileng) o kenngoa ka morao ke pompo ea ho hloekisa ka phala ho kena ka har'a lera le lengata la fiber ho hlatsoa litšila tse leboteng la membrane, 'me metsi a litšila a ntšoa ka har'a litšila. phaephe.Sistimi ea ho hloekisa ea filthara e ka hloekisoa ka litsela tse ntle le tse mpe.
Positive hlatsoa (joaloka khatello ea khatello) ka tsela e itseng e haufi le valve ea filtrate outlet, bula valve ea ho tsoa ha metsi, pompo e tla qala tlhahiso ea membrane ea mokelikeli oa 'mele, ketso ena e etsa hore ho be le fiber e se nang letho ka hare le ka ntle ho khatello ea mahlakoreng ka bobeli e lekana, phapang ea khatello. ho khomarela ka litšila tse hlephileng holim'a lera, eketsa sephethephethe hape hlatsoa holim'a metsi, filimi e bonolo holim'a palo e kholo ea litšila e ka tlosoa.
Ho hlatsoa mokokotlo (ho khutlela morao), mokhoa o tobileng ke ho koala valve ea ho ntša metsi, ho bula ka ho feletseng sephahla sa metsi a litšila, ho bula valve ea ho hloekisa, ho qala pompo ea ho hloekisa, metsi a hloekisang ka har'a 'mele oa membrane, ho tlosa litšila ka lesoba la lerako. .Ha backwashing, tlhokomelo e lokela ho lefshoa ho laola khatello ea ho hlatsoa, khatello ea backwashing e lokela ho ba ka tlase ho 0.2mpa, ho seng joalo ho bonolo ho senya filimi kapa ho senya bokaholimo ba bonding ba fiber e sekoti le binder le ho etsa dutla.
Le hoja ho hloekisa kamehla ka mokhoa o nepahetseng le ka morao ho ka boloka lebelo la ho hloekisa lera hantle, ka ho atolosoa ha nako ea ho sebetsa ea mojule oa lera, tšilafalo ea lera e tla ba matla le ho feta, 'me lebelo la ho hloekisa lera le tla fokotseha.Bakeng sa ho khutlisa lera la filtration flux, mojule oa membrane o hloka ho hloekisoa ka lik'hemik'hale.Ho hloekisa ka lik'hemik'hale hangata ho etsoa ka asiti pele ebe alkali.Ka kakaretso, 2% citric acid e sebelisoa ho pickling, 'me 1% ~ 2% NaOH e sebelisoa ho hlatsoa alkali.
Nako ea poso: Aug-06-2021