Imigaqo yokuxuba i-Ratio ye-Petroleum Coke kunye noMxholo weSulfur oguquguqukayo:
Ithini i-Maximum Allowable Sulfur Limit ye-Kiln Feed ukuqinisekisa umgangatho we-Anode?**
Kwimveliso yee-anode ezibhakiweyo kwangaphambili ze-aluminium, umda ophezulu wesalfure ovumelekileyo wokutya kwe-oven uhlala uyi-3.0% ukuqinisekisa umgangatho we-anode. Lo mda usekelwe kwimigaqo ephambili elandelayo kunye nezinto zobugcisa eziqwalaselweyo:
1. Impembelelo ephindwe kabini yoMxholo weSulfur kwiNkqubo ye-Anode
- Iingenelo zeSulfur esezantsi:
Xa umxholo wesalfure uphantsi (umz., ≤2.0%), uzinzo lobushushu be-anode kunye nokumelana ne-oxidation kuyaphucuka, kunciphisa ukukhutshwa kwe-sulfur oxide (SOₓ) ngexesha le-electrolysis kwaye kunciphisa umngcipheko wongcoliseko lokusingqongileyo. Ukongeza, i-low-sulfur coke inciphisa ukuqhekeka kwe-anode, ukuqhekeka, kunye nokusetyenziswa kakhulu ngelixa yandisa ubomi benkonzo. - Iingozi zeSulfur ephezulu:
Ubuninzi besalfure (umz., >3.0%) bunyusa kakhulu ukuqhekeka kobushushu be-anode, nto leyo ekhokelela ekuqhekekeni nasekuqhekekeni ngexesha le-electrolysis, nto leyo enyusa ukusetyenziswa kakhulu. Ngaphezu koko, isalfure ivelisa ii-sulfides (umz., i-FeS) ngexesha le-electrolysis, inyusa ukumelana koqhagamshelwano phakathi kwe-anode rod kunye ne-carbon anode, iphakamisa ukuhla kwe-voltage, kwaye inyusa ukusetyenziswa kwamandla.
2. Imigaqo yoXuba lweSilinganiselo: Ukulawula uMxholo weSulfur kwiSiln Feed ≤3.0%
- Ukudibanisa i-High- kunye ne-Low-Sulfur Coke:
I-coke ene-sulfur ephezulu (umz., i-4.5% yesulfur) ingaxutywa ne-coke ene-sulfur ephantsi (umz., i-1.2% yesulfur) ukuze kuncitshiswe ngempumelelo umxholo we-sulfur we-coke exutyiweyo. Umzekelo, umlinganiselo wokuxuba we-1:1 uvelisa umxholo we-sulfur oxutyiweyo we-2.85%, ohlangabezana nemida yokutya kwi-oven. Ukuze kuncitshiswe ngakumbi, ukulungisa umlinganiselo (umz., i-1:2) kunciphisa umxholo we-sulfur ukuya kwi-2.30%. - Indawo yokugcina izinto ezibekelwe bucala kunye nokudibanisa izinto ngendlela echanekileyo:
I-coke ene-sulfur ephezulu nephantsi kufuneka igcinwe ngokwahlukeneyo ukuze kuthintelwe ukungcoliswa okuthe tyaba. Ngexesha lokuxuba, iibhakethi zokubamba zisetyenziselwa ukudibanisa izinto ngokwemilinganiselo, ukuqinisekisa ukuxuba okufanayo ngaphambi kokungena kwi-calciner kunye nokuzinzisa umxholo wesalfure ngaphakathi koluhlu olujoliswe kulo. - Ukuphuculwa kweNkqubo yokuKhala:
Ukubeka esweni ngokusondeleyo amaqondo obushushu e-calcination (ngesiqhelo yi-1250–1350°C) kunye nexesha elaneleyo lokufunxa kubalulekile ukunciphisa intsalela eguquguqukayo kunye nokuphucula umgangatho we-calcined coke. Ukulungiswa kwemilinganiselo kuqinisekisa ukusebenza okuzinzileyo kwe-calciner.
3. Iindlela Zokusebenza Kweshishini Lokunciphisa Ubuninzi BeSulfur Feed Kiln
- Uphando lwabavelisi be-Anode ebhakiweyo kwangaphambili yasekhaya:
I-petroleum coke ene-3.0% yesulfur inokufakwa i-calcined ngqo ngaphandle kokususwa kwe-sulfurization eyongezelelweyo, nto leyo ebonisa ukuvumelana kweshishini malunga nokulinganisela umgangatho we-anode kunye nokusebenza kakuhle kweendleko. - Isalathiso seMigangatho yeHlabathi:
Ishishini le-aluminium carbon ngokubanzi lifuna umxholo wesalfure ≤3.0% kwi-petroleum coke. Umzekelo, i-Grade 3B raw petroleum coke ichaza umda wesalfure we-3.0%, ofanelekileyo kwimveliso ye-anode ebhakiweyo kwangaphambili.
4. Iziphumo Zokugqithisa Imida Yesalfure
- Umgangatho we-Anode Owonakeleyo:
I-sulfur egqithisileyo yonyusa ukuqhekeka kobushushu, okubangela ukuqhekeka, ukuqhekeka, kunye nokusetyenziswa okuphezulu ngexesha le-electrolysis. Ukumelana okuphezulu kwe-anode kunyusa i-voltage yeseli kunye nokusetyenziswa kwamandla e-aluminium ngetoni nganye. - Ungcoliseko olubi kakhulu lweNdalo:
Ukwanda kokukhutshwa kwe-SOₓ ngexesha le-electrolysis konakalisa umgangatho womoya kwaye kwaphula imithetho yokusingqongileyo. - Ukunxiba Izixhobo Ezikhawulezileyo:
Iifilimu ze-sulfide (umz., i-FeS) kwiintonga ze-anode ziphakamisa ukumelana noqhagamshelwano, zikhawulezisa ukonakala kwezixhobo kwaye zinciphisa ubomi benkonzo.
Ixesha lokuthumela: Epreli-20-2026