iindaba

I-Diatomite filter aid
I-Diatomite filter aid inesakhiwo esihle se-microporous, ukusebenza kwe-adsorption kunye nokusebenza kwe-anti compression. Ayinakwenza kuphela ulwelo oluhluziweyo lufumane umlinganiselo wokuqukuqela olungileyo, kodwa ikwahluza izinto eziqinileyo ezimisiweyo, ziqinisekisa ukucaca. I-Diatomite yintsalela yeediatom zamandulo ezineseli enye. Iimpawu zayo: ubunzima obulula, i-porous, amandla aphezulu, ukuxhathisa ukunxiba, ukugquma, ukufakwa kwe-thermal, i-adsorption kunye nokuzaliswa, njl.
I-Diatomite yintsalela yeediatom zamandulo ezineseli enye. Iimpawu zayo: ubunzima bokukhanya, i-porous, amandla aphezulu, ukuxhathisa ukugqoka, ukugquma, ukutshitshiswa kwe-thermal, i-adsorption kunye nokuzaliswa, njl Unokuzinza kweekhemikhali ezilungileyo. Yimpahla ebalulekileyo yoshishino yokufudumala ubushushu, ukugaya, ukuhluza, i-adsorption, i-anticoagulation, i-demoulding, ukuzaliswa, i-carrier, njl. Isenokusetyenziswa njengefektri esebenzayo yokugcwalisa iiplastiki, irabha, iiseramics, ukwenza iphepha, njl.
Ukuhlelwa kweCandelo
Uncedo lokucoca i-diatomite lunokwahlulwa lube yimveliso eyomileyo, imveliso ye-calcined kunye nemveliso ye-flux calcined ngokweenkqubo ezahlukeneyo zokuvelisa. [1]
① Imveliso eyomileyo
I-silica yomhlaba owomileyo ococekileyo ococekileyo, omiswe kwangaphambili kunye nemathiriyeli ekrwada ekrwada iyomiswa kwi-600 ~ 800 ° C kwaye emva koko icolile. Le mveliso inobungakanani obuhle kakhulu kwaye ifanelekile ukuhluzwa okuchanekileyo. Ihlala isetyenziswa ngokudibeneyo nezinye izixhobo zokucoca. Uninzi lweemveliso ezomileyo zityheli kancinci, kodwa zikwamhlophe zimhlophe kwaye zingwevu. [1]
② Imveliso ene-calcined
I-diatomite ehlanjululweyo, eyomileyo kwaye icolile imathiriyeli ekrwada yondliwa kwi-rotary kiln, i-calcined kwi-800 ~ 1200 ° C, emva koko icolile kwaye ihlelwe ukuze ifumane iimveliso ze-calcined. Xa kuthelekiswa nemveliso eyomileyo, i-permeability yemveliso ye-calcined ingaphezulu kwamaxesha amathathu aphezulu. Iimveliso ezine-calcined zibomvu kakhulu. [1]
③ Imveliso ye-Flux calcined
I-diatomite ehlanjululweyo, eyomileyo kwaye echotshoziweyo yezinto eziluhlaza zongezwa kunye nenani elincinci le-sodium carbonate, i-sodium chloride kunye nezinye izixhobo ezinyibilikayo, i-calcined kwi-900 ~ 1200 ° C, igayiwe kwaye ihlelwe ukuze ifumane i-calcined flux. I-permeability yemveliso ye-flux calcined ngokucacileyo yanda, ngaphezu kwamaxesha angama-20 emveliso eyomileyo. Iimveliso ze-Flux calcined ikakhulu zimhlophe, kunye nepinki ekhanyayo xa umxholo we-Fe2O3 uphezulu okanye idosi ye-flux encinci. [1]
Uhluzo
Isiphumo sokuhluza i-diatomite filter aid iqhutywa ikakhulu ngale misebenzi mithathu ilandelayo:
Intshukumo yeSieving
Olu luhlobo lohluzo lomphezulu. Xa i-fluid ihamba nge-diatomite, i-pore ye-diatomite incinci kune-particle size ye-particle ye-particle yokungcola, ngoko ke iinqununu zokungcola azikwazi ukudlula kwaye zigcinwe. Esi siphumo sibizwa ngokuba yi-screening. Ngapha koko, umphezulu wekhekhe lokucoca unokubonwa njengendawo yesikrini enobungakanani obulinganayo bepore. Xa i-diameter ye-particle eqinile ingekho ngaphantsi (okanye incinci ngaphantsi) ububanzi be-diatomite pores, i-particle eqinile iya "kuhluzwa" ngaphandle kokumiswa, idlala indima yokucoca indawo. [2]
Isiphumo esinzulu
Isiphumo sobunzulu sisiphumo sokugcinwa kokucoca okunzulu. Ngexesha lokuhluza okunzulu, inkqubo yokwahlula ivela kuphela "ngaphakathi" kwendawo ephakathi. Amanye amasuntswana okungcola amancinci adlula kumphezulu wekhekhe lokucoca athintelwe yimijelo ye-zigzag microporous ngaphakathi kwediatomite kunye neepores ezicolekileyo ngaphakathi kwekhekhe lokucoca. Iincinci ezinjalo zihlala zincinci kune-microporous pores ye-diatomite. Xa amasuntswana abetha udonga lomjelo, kunokwenzeka ukuba ahlukane nokuhamba kolwelo, kodwa ingaba inokufezekisa oku, Igqitywe ngokulinganisela kwamandla e-inertia kunye nokumelana nokuxhatshazwa ngamasuntswana, le nto yokuthintela kunye neyokuhlola iyafana kwindalo kwaye iyingxenye yesenzo soomatshini. Ukukwazi ukucoca amasuntswana aqinileyo ngokusisiseko kunxulumene nobungakanani obunxulumene kunye nokumila kwamasuntswana aqinileyo kunye neepores. [2]
I-Adsorption
I-Adsorption yahluke ngokupheleleyo kwezi ndlela zimbini zokucoca. Enyanisweni, esi siphumo sinokuqwalaselwa njengento ekhangayo ye-electrokinetic, eyona nto ixhomekeke kwiipropati zomphezulu wamasuntswana aqinileyo kunye ne-diatomite ngokwayo. Xa amasuntswana aneembombo ezincinci kwi-diatomite engqubuzana nomphezulu wangaphakathi we-diatomite ene-porous, atsalwa ngeentlawulo ezichaseneyo, okanye amaqhekeza atsala omnye komnye ukuba enze amatyathanga kwaye abambelele kwi-diatomite, eye-adsorption. [2] I-Adsorption inzima kakhulu kuneyokuqala ezimbini. Ngokuqhelekileyo kukholelwa ukuba amasuntswana aqinileyo amancinci kune-diameter ye-pore abanjwe ngenxa yokuba:
(1) I-intermolecular force (ekwabizwa ngokuba ngumtsalane we-van der Waals) iquka isenzo se-dipole esisigxina, isenzo esibangelwa i-dipole kunye nesenzo se-dipole yesikhashana;
(2) Ubukho beZeta ezinokubakho;
(3) Inkqubo yokutshintsha i-ion.