Cov txheej txheem rov tsim dua tshiab ntawm titanium pas nrig lim cov ntsiab lus suav nrog kev kho lub cev thiab tshuaj lom neeg. Cov txheej txheem no yog siv los ntxuav thiab rov ua kom lub lim dej ua haujlwm hauv ntau qhov xwm txheej. Ntawm no yog ib qho kev tawg ntawm cov txheej txheem regeneration:
Lub cev Regeneration txheej txheem:
Cov txheej txheem no yog tsim rau lim xov xwm nrog tsawg impurities thiab tsawg clogging, xws li ozone disinfection lim thiab cua lim.
Backflush: Pib lub backflush siv dej ntshiab (deionized dej) li ntawm 15 feeb. Lub backflush siab yuav tsum khaws cia hauv qab no 0.4Mpa. Xwb, huab cua huv lossis chav siv tau siv rau kev rov qab los, ua kom lub siab nyob qis dua 0.4Mpa.
Ultrasonic tu: Muab cov pas nrig titanium tso rau hauv lub pas dej ntxuav ultrasonic thiab tso cai rau nws ntxuav rau 60 feeb. Tom qab ntxuav, yaug lub pas nrig nrog dej deionized los yog dej distilled rau 15 feeb. Thaum kawg, qhuav thiab sterilize tus pas nrig ua ntej siv.
Cov txheej txheem kho tshuaj:
Cov txheej txheem no tsim nyog rau kev txhaws hnyav ntawm titanium lim cov ntsiab lus thiab cov khoom siv lim dej nyuaj, xws li decarbonization pom, muaj protein ntau cov khoom pom, thiab cov viscosity media filtration siab.
Alkaline ntxuav txheej txheem:
a. Soak lub lim dej hauv 1% NaOH analytical pure solution rau 30 feeb thaum nws tau siv tshiab lossis tom qab lub sijhawm kaw ntev. Ua ntej soaking, yaug lub lim caij nrog dej ib txwm thiab muab tso rau hauv cov tshuaj alkaline. Tom qab soaking, yaug lub caij nrog dej deionized tsawg kawg yog ob zaug, nrog rau txhua qhov yaug tsis pub tsawg tshaj 30 feeb. Cov dej siab yuav tsum khaws cia ntawm 0.2-0.3Mpa. Tom qab ntxuav, muab cov khoom tso rau hauv dej tseem tsis muaj cov khoom ntab thiab xyuas kom cov pH tus nqi ntawm cov dej tsis zoo.
Pickling txheej txheem:
a. Npaj cov tshuaj ntxuav los ntawm dissolving 5% (qhuav) potassium dichromate (los yog sodium) hauv 1000g dej ib txwm. Ntxiv cov concentrated sulfuric acid (rau kev siv) rau 2000ml ntawm cov tshuaj.
b. Siv cov poov tshuaj dichromate (los yog sodium) crystals los yog hmoov zoo thiab dej kub kom yaj lawv ntawm qhov kub ntawm 60-80 degrees Celsius. Maj mam ntxiv cov concentrated sulfuric acid (94%-96%) thaum stirring tas li. Thaum qhov sib ntxiv nce mus txog 1200ml, potassium dichromate (los yog sodium) yuav tsum tau yaj tag, thiab cov xim yuav tsum hloov ntawm xim av-liab mus rau tob liab. Yog hais tias muaj ib yam dab tsi undissolved, sov cov tshuaj dua kom yaj nws. Cia cov tshuaj txias thiab kaw nws rau kev siv yav tom ntej.
c. Thaum lub sij hawm configuration txheej txheem, xyuam xim rau cov hauv qab no:
Cov kua ntxuav tau zoo tshem tawm cov av dav dav, roj, cov hlau tsis huv, tua cov kab mob, thiab rhuav tshem cov cua sov. Ua ntej soaking hauv cov tshuaj ntxuav, xyuas kom meej cov tshuaj ntxuav alkaline yog siv ua ntej los tiv thaiv fatty acids los ntawm precipitating thiab staining lub lim ntsiab.
Yog tias cov xim ntawm cov tshuaj ntxuav hloov ntsuab, nws qhia tias muaj peev xwm oxidation tsis muaj zog thiab tsis haum rau kev siv.
Qhov concentration ntawm cov kua qaub yuav tsum tsis txhob poob qis dua 85% vim nws txo qis kev muaj peev xwm decontamination. Yog li ntawd, tsis txhob ntxiv dej ntxiv rau cov tshuaj.
Thaum npaj cov tshuaj ntxuav, maj mam ntxiv cov concentrated sulfuric acid rau hauv cov tshuaj potassium dichromate aqueous thaum nplawm. Tsis txhob nchuav dej rau hauv cov kua qaub kom tsis txhob muaj xwm txheej tshwm sim los ntawm kev kub ntxhov tam sim ntawd.
Cov tshuaj ntxuav yuav tsum tsis txhob tov nrog cawv lossis caustic soda kom tsis txhob tawg.
Cov tshuaj ntxuav tau yooj yim nqus dej thiab tuaj yeem kaw thiab khaws cia rau kev siv tom qab.
d. Cov kauj ruam tu:
-Retrieve lub lim caij.
- Yaug cov phab ntsa sab hauv thiab sab nrauv nrog cov dej txhaj tshuaj lossis lim dej distilled ntawm qhov kub ntawm kwv yees li 60 degrees Celsius rau 3 feeb.
-Siv cua compressed (tsis muaj roj lossis roj pos huab) los tshuab kom qhuav cov dej uas tseem tshuav.
-Dub lub lim dej hauv cov tshuaj ntxuav (diluted mus rau ib qho concentration ntawm 2.5%-3%) rau li 15 feeb, ces tshem tawm.
-Rau lub lim dej sab hauv thiab sab nrauv nrog dej deionized lossis dej distilled peb zaug. Cov dej siab yuav tsum yog 0.3--0.35Mpa, thiab qhov kub yuav tsum qis dua 80 degrees Celsius lossis hauv chav tsev kub.
-Siv cov dej kub kom qhuav cov dej seem ntawm cov khoom thiab muab tso ncaj qha rau hauv lub txee rau cov kab mob kom tsis muaj menyuam, uas yuav tsum kav ntev li 40 feeb.
- Yaug nrog me me ntawm cov dej txhaj thiab ci ntawm qhov kub thiab txias ntawm 112 degrees Celsius rau ntau tshaj 1 teev.
-Seal lub lim hauv lub thawv kom tsis muaj menyuam rau kev tiv thaiv.
