izindaba

Usizo lwesihlungi se-Diatomite
Usizo lokuhlunga lwe-Diatomite lunokwakheka okuhle kwe-microporous, ukusebenza kwe-adsorption kanye nokusebenza kokulwa nokucindezelwa. Ngeke nje yenze uketshezi oluhlungiwe zithole isilinganiso esihle sokugeleza, kodwa futhi ihlunge izinto eziqinile ezimisiwe, iqinisekisa ukucaca. I-Diatomite yizinsalela zama-diatoms asendulo aneseli elilodwa. Izici zayo: isisindo esilula, i-porous, amandla aphezulu, ukumelana nokugqoka, ukwahlukanisa, ukufakwa kwe-thermal, i-adsorption nokugcwalisa, njll.
I-Diatomite yizinsalela zama-diatoms asendulo aneseli elilodwa. Izici zayo: isisindo esilula, i-porous, amandla aphezulu, ukumelana nokugqoka, ukufakwa kwe-insulation, ukufakwa kwe-thermal, i-adsorption nokugcwalisa, njll Inokuqina okuhle kwamakhemikhali. Kuyinto ebalulekile yezimboni yokushisa ukushisa, ukugaya, ukuhlunga, i-adsorption, i-anticoagulation, i-demoulding, ukugcwalisa, umthwali, njll. Ingasetshenziswa kabanzi ku-metallurgy, imboni yamakhemikhali, amandla kagesi, ezolimo, umanyolo wamakhemikhali, izinto zokwakha, imikhiqizo yokushisa okushisayo nezinye izimboni. Ingasetshenziswa futhi njengokugcwalisa okusebenzayo kwezimboni zamapulasitiki, irabha, izitsha zobumba, ukwenza iphepha, njll.
Ukuhlela Kwesigaba
Usizo lokuhlunga lwe-Diatomite lungahlukaniswa ngemikhiqizo eyomile, imikhiqizo e-calcined kanye nemikhiqizo ye-flux calcined ngokuya ngezinqubo ezahlukene zokukhiqiza. [1]
① Umkhiqizo omisiwe
I-silica ehlanzekile, eyomile futhi echotshoziwe inhlabathi eyomile yezinto zokusetshenziswa zomiswa ku-600 ~ 800 ° C bese zichotshozwa. Lo mkhiqizo unosayizi wezinhlayiyana ezinhle kakhulu futhi ulungele ukuhlungwa okunembayo. Ivame ukusetshenziswa ngokuhambisana nezinye izinsiza zokuhlunga. Iningi lemikhiqizo eyomisiwe iphuzi ngokukhanyayo, kodwa futhi i-milky white kanye ne-gray ekhanyayo. [1]
② Umkhiqizo one-calcined
Izinto zokusetshenziswa ze-diatomite ezihlanziwe, ezomisiwe nezichotshoziwe zifakwa kuhhavini elijikelezayo, zibalwa ku-800 ~ 1200 ° C, bese zichotshozwa futhi zifakwe amagremu ukuze kutholwe imikhiqizo ebaliwe. Uma kuqhathaniswa nomkhiqizo owomile, ukungena komkhiqizo owenziwe nge-calcined kungaphezu kokuphindwe kathathu. Imikhiqizo ene-calcined ngokuvamile ibomvu ngokukhanyayo. [1]
③ Flux umkhiqizo calcined
I-diatomite ehlanzekile, eyomile futhi echotshoziwe impahla eluhlaza yengezwa ngenani elincane le-sodium carbonate, i-sodium chloride nezinye izinsiza zokuncibilika, ezibalwe ku-900 ~ 1200 ° C, zichotshoziwe futhi zihlelwe ukuze kutholwe i-calcined flux. Ukungena komkhiqizo we-flux calcined ngokusobala kunyukile, izikhathi ezingaphezu kwezingu-20 zomkhiqizo owomile. Imikhiqizo eyenziwe nge-Flux ngokuvamile imhlophe, futhi i-pink ekhanyayo uma okuqukethwe kwe-Fe2O3 kuphezulu noma umthamo we-flux mncane. [1]
Ukuhlunga
Umphumela wokuhlunga we-diatomite filter aid wenziwa ikakhulukazi ngale misebenzi emithathu elandelayo:
Isenzo sokuhlunga
Lolu uhlobo lokuhlunga kwendawo. Lapho uketshezi lugeleza nge-diatomite, imbotshana ye-diatomite incane kunosayizi wezinhlayiyana zezinhlayiya zokungcola, ngakho izinhlayiya zokungcola azikwazi ukudlula futhi ziyagcinwa. Lo mphumela ubizwa ngokuthi ukuhlola. Eqinisweni, ingaphezulu lekhekhe lokuhlunga lingathathwa njengendawo yesikrini enosayizi olinganayo wembotshana omaphakathi. Uma ububanzi bezinhlayiya eziqinile bungekho ngaphansi (noma ngaphansi kancane) kobubanzi be-diatomite pores, izinhlayiya eziqinile "zizohlungwa" ngaphandle kokumiswa, zidlala indima yokuhlunga kwendawo. [2]
Umthelela ojulile
Umthelela ojulile umphumela wokugcina wokuhlunga okujulile. Ngesikhathi sokuhlunga okujulile, inqubo yokuhlukanisa iyenzeka kuphela "ngaphakathi" kwendawo ephakathi. Ezinye izinhlayiya ezincane zokungcola ezidlula ebusweni bekhekhe lokuhlunga zivinjwe iziteshi ezincane ze-zigzag ngaphakathi kwe-diatomite kanye nezimbotshana ezinhle ngaphakathi kwekhekhe lokuhlunga. Izinhlayiya ezinjalo ngokuvamile zincane kunezimbotshana ezincane ze-diatomite. Lapho izinhlayiya zishaya odongeni lwesiteshi, kungenzeka ukuhlukana nokugeleza kwe-liquid, kodwa kungakhathaliseki ukuthi kungakwazi ukufeza lokhu, Kunqunywa ibhalansi yamandla e-inertia kanye nokumelana okuhlushwa yizinhlayiya, lesi senzo sokungenelela kanye nokuhlola kufana ngokwemvelo futhi kungokwesenzo somshini. Ikhono lokuhlunga izinhlayiya eziqinile ngokuyisisekelo lihlobene nosayizi ohlobene nokuma kwezinhlayiya eziqinile nezimbotshana. [2]
I-Adsorption
I-Adsorption ihluke ngokuphelele kulezi zindlela ezimbili zokuhlunga ezingenhla. Eqinisweni, lo mphumela ungabuye ubhekwe njengokukhanga kwe-electrokinetic, okuncike kakhulu endaweni engaphezulu yezinhlayiya eziqinile kanye ne-diatomite ngokwayo. Lapho izinhlayiya ezinezimbotshana ezincane ku-diatomite zishayisana nendawo yangaphakathi ye-diatomite enezimbotshana, zikhangwa amacala aphikisanayo, noma izinhlayiya zidonselana ukuze zenze amaketanga futhi zinamathele ku-diatomite, okungeye-adsorption. [2] I-Adsorption iyinkimbinkimbi kakhulu kuneyokuqala emibili. Ngokuvamile kunenkolelo yokuthi izinhlayiya eziqinile ezincane kunobubanzi bembotshana zibambeke kakhulu ngenxa yokuthi:
(1) Amandla e-intermolecular (abuye abizwe ngokuthi i-van der Waals attraction) ahlanganisa isenzo se-dipole esihlala njalo, isenzo se-dipole esiyenziwe kanye nesenzo se-dipole sesikhashana;
(2) Ukuba khona kwamandla kaZeta;
(3) Inqubo yokushintshanisa i-ion.