I-coke e-calcined luhlobo lwe-carburizer kunye ne-petroleum coke yeenkcukacha ezahlukeneyo.
Iinkcukacha eziphambili zeemveliso zegrafiti yi-￠150-￠1578 kunye nezinye iimodeli. Iyimfuneko kakhulu kumashishini esinyithi nentsimbi, amashishini e-silicon polysilicon emizi-mveliso, amashishini e-emery, amashishini ezixhobo zeenqwelo moya kunye nezinye iimveliso.
1: I-petroleum coke
I-petroleum coke yimveliso yepetroleum eqinileyo emnyama okanye engwevu emnyama ene-metallic luster kwaye inemingxuma. Yinto efana ne-carbonaceous, columnar, okanye efana nenaliti equlethwe ziikristale ze-graphite ezincinci.
I-petroleum coke iqulethe ii-hydrocarbons, i-90-97% yekhabhoni, i-1.5-8% yehydrogen, i-nitrogen, i-chlorine, i-sulfur, kunye neekhompawundi zesinyithi esinzima.
I-petroleum coke yimveliso ephuma kwi-pyrolysis yeoyile eluhlaza kwiyunithi ye-coking ebambezelekileyo ukuvelisa ioyile ekhaphukhaphu kubushushu obuphezulu.
Imveliso ye-petroleum coke imalunga ne-25-30% ye-oyile eluhlaza.
Ixabiso layo eliphantsi leekhalori limalunga ne-1.5-2 yamalahle, umxholo wothuthu awudluli kwi-0.5%, umxholo oguquguqukayo umalunga ne-11%, kwaye umgangatho wayo usondele kwi-anthracite.
2: Umgangatho womgangatho we-petroleum coke I-petroleum coke ebambezelekileyo ibhekisa kwi-coke eveliswa yiyunithi ye-coking ebambezelekileyo, ekwaziwa ngokuba yi-coke eqhelekileyo, akukho mgangatho uhambelanayo.
Okwangoku, amashishini emveliso yasekhaya ikakhulu avelisa ngokwemigangatho yoshishino i-SH0527-92 eyaveliswa yi-China Petrochemical Corporation yangaphambili.
Umgangatho uhlelwe ngokubanzi ngokwesixa sesalfure se-petroleum coke.
I-coke yenombolo 1 ifanelekile ukwenza i-electrode yegrafiti yamandla eqhelekileyo kushishino lokwenza intsimbi, kwaye ikwasetyenziswa njengekhabhoni yokucocwa kwe-aluminium
I-coke yenombolo 2 isetyenziselwa ukuvelisa i-electrode paste kunye ne-graphite electrode kwi-electrolytic cell (furnace) kwishishini lokunyibilikisa i-aluminium
I-coke yenombolo 3 isetyenziswa ekuvelisweni kwe-silicon carbide (izinto zokugaya) kunye ne-calcium carbide (i-calcium carbide), kunye nezinye iimveliso zekhabhoni, kunye nasekuvelisweni kweebhloko ze-anode ze-aluminium smelter kunye nasekwakhiweni kwezitena zekhabhoni okanye isiseko se-furnace kwi-blast furnace.
3: UKUSETYENZISWA okuphambili kwe-petroleum coke
Ezona zinto ziphambili ezisetyenziswa yi-petroleum coke yi-anode ebhakiweyo kwangaphambili kunye ne-anode paste kwi-electrolytic aluminium, ukuveliswa kwe-carbon ye-carbonizing agent, i-graphite electrode, i-silicon yezimboni yokunyibilikisa kunye ne-fuel, njl.njl.
Ngokwesakhiwo kunye nembonakalo ye-petroleum coke, iimveliso ze-petroleum coke zingahlulwa zibe yi-needle coke, i-sponge coke, i-projectile coke kunye ne-powder coke:
(1) I-coke efana nenaliti, enesakhiwo esicacileyo esifana nenaliti kunye nobume befayibha, isetyenziswa kakhulu njenge-electrode ye-graphite enamandla aphezulu kunye ne-electrode ye-graphite enamandla aphezulu kakhulu ekwenzeni intsimbi.
Ngenxa yokuba i-needle coke ineemfuno ezingqongqo zomgangatho kwi-sulphur content, ash content, volatiles content kunye ne-true density, kukho iimfuneko ezikhethekileyo kwitekhnoloji yokuvelisa kunye nezinto ezikrwada ze-needle coke.
(2) I-sponge coke, ene-reactivity ephezulu yeekhemikhali kunye nomxholo ophantsi wokungcola, isetyenziswa kakhulu kwishishini lokunyibilikisa i-aluminium kunye neshishini le-carbon.
(3) I-projectile coke okanye i-spherical coke: imile okwesangqa kwaye ububanzi bayo buyi-0.6-30mm. Ngokuqhelekileyo iveliswa nge-sulfur ephezulu kunye ne-asphaltene residue kwaye ingasetyenziselwa kuphela ukuvelisa umbane, isamente kunye nezinye izibaso zoshishino.
(4) I-Powder coke: iveliswa yinkqubo yokucola enyibilikisiweyo enamasuntswana amancinci (ububanzi: 0.1-0.4mm), umxholo ophezulu wokuwohloka kunye ne-thermal expansion coefficient ephezulu, ngoko ke ayinakusetyenziswa ngokuthe ngqo ekulungiseleleni i-electrode kunye neshishini lekhabhoni.
4: I-coke ye-petroleum ene-calcined
Xa i-electrode yegrafiti yokwenza intsimbi okanye i-anode paste (i-electrode yokunyibilikisa) ye-aluminium kunye ne-magnesium, ukuze kwenziwe i-petroleum coke (i-coke) ihlangabezane neemfuno, i-coke kufuneka ifakwe i-calcium.
Iqondo lobushushu le-calcining lidla ngokuba malunga ne-1300℃, injongo yalo kukususa i-naphthol coke volatilization kangangoko kunokwenzeka.
Ngale ndlela, umxholo we-hydrogen kwi-petroleum coke reproducts unokuncitshiswa, inqanaba le-graphitization ye-petroleum coke linokuphuculwa, amandla obushushu obuphezulu kunye nokumelana nobushushu kwe-graphite electrode kunokuphuculwa, kwaye ukuhanjiswa kombane kwe-graphite electrode kunokuphuculwa.
I-Calcine isetyenziselwa kakhulu ukuvelisa i-graphite electrode, iimveliso ze-carbon paste, isanti yedayimani, imboni ye-phosphorus ekumgangatho wokutya, imboni ye-metallurgical kunye ne-calcium carbide, phakathi kwazo i-graphite electrode isetyenziswa kakhulu.
I-Coke ngaphandle kokuyila ingasetyenziswa ngqo njenge-calcium carbide, i-silicon carbide kunye ne-boron carbide njengezinto zokusila.
Ingasetyenziswa ngqo njenge-coke kwi-metallurgical industry blast oven okanye i-blast oven lining carbon brick, ikwasetyenziselwa ukuphosa i-compact coke, njl.
Ixesha lokuposa: Novemba-20-2020