Iyintoni indima ye-graphitized petroleum coke kwimizi-mveliso yokunyibilikisa isinyithi efana ne-industrial silicon kunye ne-silicon carbide?

Indima yeGraphitized Petroleum Coke kwiMizi-mveliso yokuSmelting ye-Industrial Silicon kunye neSilicon Carbide

I. Indima kwi-Industrial Silicon Smelting

1. Umsebenzi weArhente yokunciphisa uBuchule
I-graphitized petroleum coke yenye yezona zinto ziphambili zokunciphisa i-carbonaceous kwimveliso ye-silicon yemizi-mveliso. Umxholo wayo ophezulu we-carbon (90%-97%) kunye neempawu zayo zomlotha ophantsi zenza ukuba ibe yinto ebalulekileyo yokubonelela nge-carbon efunekayo kwiimpendulo. Ngexesha lokunyibilikisa i-arc furnace, i-petroleum coke inceda ukuguqulwa kwe-silica (SiO₂) ibe yi-industrial silicon ngokusebenzisa iimpendulo zokunciphisa i-carbothermal. Ukongeza, i-conductivity yayo yombane inceda ukulawula ukumelana kwetshaja ye-furnace, ukulawula ubunzulu bokufakwa kwe-electrode kunye nokwenza ngcono ukusebenza kwe-arc furnace yombane.

2. Ukuphucula ukusebenza kwetshaja yesithando somlilo

• Uhlengahlengiso lokuxhathisa: Ukuqhuba kombane kwe-petroleum coke kunefuthe ekuxhathiseni kwetshaja yesithando somlilo. Ngokulungisa idosi yaso kunye nobukhulu bamasuntswana, ukusebenza kakuhle kobushushu besithando somlilo sombane kunokuphuculwa, kuncitshiswe ukusetyenziswa kwamandla.
• Ukuphuculwa Kokukwazi Ukungena: I-petroleum coke ecocekileyo idla ngokujika ibe yigraphitize kumaqondo obushushu aphezulu, nto leyo ekhokelela ekwakhekeni kwe-crust kumphezulu wesithando. Ukunciphisa oku, ii-wood chips okanye i-sawdust ziyaxutywa ukuze kwandiswe ukumelana okuthile, kuphuculwe ukuvuleka kwe-furnace, kwaye kuzinziswe iimeko zokusebenza.
• Ukongezwa kweMisebenzi yeeKhemikhali: I-petroleum coke ineempawu zokunciphisa ezibuthathaka kwaye idla ngokusetyenziswa kunye ne-silicon coal okanye i-charcoal enomlotha ophantsi ukuqinisekisa ukuqhubela phambili okuthe tye kwempendulo yokunciphisa.

3. Ibhalansi Phakathi koMgangatho kunye neendleko

• Imveliso yeSilicon ekumgangatho ophezulu: Umxholo ophantsi wothuthu lwe-petroleum coke wenza ukuba ifaneleke ukuvelisa i-silicon yemizi-mveliso ecocekileyo kakhulu. Nangona kunjalo, i-sulfur, i-vanadium, i-nickel, kunye nokunye ukungcola kufuneka kulawulwe, ngakumbi kwimveliso ye-organosilicon, apho umlinganiselo we-petroleum coke unqunyelwe ukuthintela ubuthi be-catalyst.
• Iingenelo zoqoqosho: Xa kuthelekiswa namalahle, i-petroleum coke ifumaneka ngokubanzi, ixabiso layo lizinzile, kwaye ayichaphazeleki kakhulu yimigaqo-nkqubo yokusingqongileyo, nto leyo eyenza ukuba ibe yeyona nto ikhethwayo ekunciphiseni imveliso enkulu.

II. Indima kwiSilicon Carbide Smelting

1. Ubonelelo ngeMthombo yeKhabhoni
Imveliso ye-silicon carbide (SiC) ifuna umthombo wekhabhoni ococekileyo kakhulu. Emva kokuba i-calcination ifunyenwe, i-graphitized petroleum coke ibonisa umxholo ophantsi we-volatile kunye ne-graphitization ephuculweyo, ibonelela ngomthombo wekhabhoni ozinzileyo okhuthaza impendulo yesigaba esiqinileyo phakathi kwe-silicon kunye nekhabhoni ukuvelisa i-silicon carbide ecocekileyo kakhulu.

2. Izicelo kwiZixhobo zeAbrasive
I-petroleum coke ingasetyenziselwa ngqo ukwenza i-silicon carbide abrasives (umz., amavili okugaya, iphepha lokusila). Ubunzima bayo obuphezulu kunye nokumelana nokuguguleka kwayo kuyenza ibe yinto ebalulekileyo ekusetyenzweni kwesinyithi, ukupolisha i-ceramic, kunye nezinye izinto.

3. Ukuphucula Inkqubo

• Unyango lweCalcination: Ukufaka iCalcination kwi-petroleum coke eluhlaza kwi-1300°C kunciphisa umxholo we-hydrogen kwaye kuphucula i-graphitization, kuphucula ukuhanjiswa kombane kunye nokumelana nobushushu kweemveliso ze-silicon carbide.
• Ulawulo lobungakanani beenxalenye: Ukulungisa ubungakanani beenxalenye ze-petroleum coke kuphucula inkqubo yokwenza i-silicon carbide ibe yikristale, nto leyo ephucula ukufana kwemveliso.

III. Indima eBanzi kunye neXabiso kwiShishini

1. Ukuphucula Ukusebenza Kokunyibilikisa Isinyithi
Ukuqhuba kombane kunye nokuzinza kweekhemikhali kwe-graphitized petroleum coke kunciphisa ukusetyenziswa kwamandla kwii-electrical arc ovens, kunciphisa imijikelo yokunyibilikisa, kwaye kuphucule ukusebenza kakuhle kwemveliso. Umzekelo, kwimveliso ye-silicon yemizi-mveliso, ukuxuba i-petroleum coke ngokufanelekileyo kunokunciphisa ukusetyenziswa kwamandla nge-5%-10%.

2. Uqinisekiso loMgangatho
Ukulawula amanqanaba esalfure, uthuthu, kunye nokungcola kwi-petroleum coke kunciphisa ukufakwa kwezinto ezingezizo ezesinyithi kwi-silicon yemizi-mveliso kwaye kuphucula ubunyulu be-silicon carbide, ukuhlangabezana neemfuno zokwenziwa kwemveliso ephezulu (umz., i-silicon carbide ye-semiconductor-grade).

3. Ukuqhuba Uphuculo Lwemizi-mveliso
Njengoko ishishini lokunyibilikisa isinyithi lisiya kwimisebenzi emikhulu nekrelekrele, ubunyulu obuphezulu kunye nekristali ye-graphitized petroleum coke zixhasa ukuveliswa kwee-electrode pastes eziphezulu kunye nee-carbon electrodes ezinkulu, nto leyo ekhuthaza ukuphuculwa kobuchwepheshe kulo lonke eli candelo.