I-coke ekhalisiwe iwuhlobo lwe-carburizer kanye ne-coke ye-petroleum enezincazelo ezahlukene.
Imininingwane eyinhloko yemikhiqizo ye-graphite yi-￠150-￠1578 kanye namanye amamodeli. Ibaluleke kakhulu emabhizinisini ensimbi nensimbi, emabhizinisini e-silicon polysilicon ezimbonini, emabhizinisini e-emery, embonini yezinto zezindiza kanye neminye imikhiqizo.
1: I-coke kaphethiloli
I-petroleum coke iwumkhiqizo kaphethiloli oqinile omnyama noma ompunga oqinile one-metallic luster futhi unezimbobo. Iyinto e-granular, columnar, noma efana ne-carbonaceous equkethe amakristalu e-graphite amancane.
I-petroleum coke iqukethe ama-hydrocarbon, i-carbon engu-90-97%, i-hydrogen engu-1.5-8%, i-nitrogen, i-chlorine, i-sulfur, kanye nama-compounds ensimbi esindayo.
I-petroleum coke ingumkhiqizo ophuma ku-pyrolysis yamafutha aluhlaza kuyunithi yokupheka ephuzile ukuze kukhiqizwe uwoyela olula ekushiseni okuphezulu.
Umkhiqizo we-petroleum coke cishe u-25-30% walowo kawoyela ongahluziwe.
Inani layo eliphansi lama-calories licishe libe izikhathi ezingu-1.5-2 zamalahle, okuqukethwe komlotha akudluli ku-0.5%, okuqukethwe okuguquguqukayo cishe kungama-11%, futhi ikhwalithi yayo iseduze ne-anthracite.
2: Izinga lekhwalithi le-petroleum coke I-petroleum coke ephuzile ibhekisela ku-coke ekhiqizwa yiyunithi ye-coking ephuzile, eyaziwa nangokuthi i-coke evamile, ayikho indinganiso ehambisanayo.
Njengamanje, amabhizinisi okukhiqiza asekhaya akhiqiza kakhulu ngokwezinga lomkhakha i-SH0527-92 elakhiwe yi-China Petrochemical Corporation yangaphambili.
Indinganiso ihlukaniswa kakhulu ngokwezinga lesibabule se-petroleum coke.
I-coke enguNombolo 1 ifaneleka ekwenzeni i-electrode yamandla avamile e-graphite embonini yokwenza insimbi, futhi isetshenziswa njengekhabhoni yokucwengisisa i-aluminium
I-coke enguNombolo 2 isetshenziselwa ukukhiqizwa kwe-electrode paste kanye ne-graphite electrode kumaseli e-electrolytic (isithando) embonini yokuncibilikisa i-aluminium
I-coke engunombolo 3 isetshenziswa ekukhiqizweni kwe-silicon carbide (izinto zokugaya) kanye ne-calcium carbide (i-calcium carbide), kanye neminye imikhiqizo yekhabhoni, kanye nasekukhiqizweni kwamabhulokhi e-anode e-aluminium smelter kanye nasekwakheni izitini zekhabhoni noma phansi kwesithando somlilo esithandweni somlilo.
3: UKUSEBENZISA okuyinhloko kwe-petroleum coke
UKUSETSHENZISWA okuyinhloko kwe-petroleum coke yi-anode ebhakiwe kusengaphambili kanye ne-anode paste ye-electrolytic aluminium, ukukhiqizwa kwekhabhoni ye-carbonizing agent, i-graphite electrode, i-silicon yezimboni yokuncibilikisa kanye nophethiloli, njll.
Ngokwesakhiwo kanye nokubukeka kwe-petroleum coke, imikhiqizo ye-petroleum coke ingahlukaniswa ibe yi-needle coke, i-sponge coke, i-projectile coke kanye ne-powder coke:
(1) I-coke efana nenaliti, enesakhiwo esicacile esifana nenaliti kanye nokuthungwa kwefayibha, isetshenziswa kakhulu njenge-electrode ye-graphite enamandla aphezulu kanye ne-electrode ye-graphite enamandla aphezulu kakhulu ekwenzeni insimbi.
Ngenxa yokuthi i-needle coke inezidingo eziqinile zekhwalithi yokuqukethwe kwe-sulfur, okuqukethwe komlotha, okuqukethwe kwe-volatiles kanye nokuminyana kwangempela, kunezidingo ezikhethekile kubuchwepheshe bokukhiqiza kanye nezinto zokusetshenziswa ze-needle coke.
(2) I-Sponge coke, ene-reactivity ephezulu yamakhemikhali kanye nokuqukethwe okuphansi kokungcola, isetshenziswa kakhulu embonini yokuncibilikisa i-aluminium kanye nemboni yekhabhoni.
(3) I-coke eqhumayo noma i-coke eyindilinga: inesimo esiyindilinga futhi ububanzi bayo bungu-0.6-30mm. Ngokuvamile ikhiqizwa ngezinsalela ze-sulfur ephezulu kanye ne-asphaltene ephezulu futhi ingasetshenziswa kuphela ekukhiqizeni ugesi, usimende kanye nezinye izinto zokubasa zezimboni.
(4) I-Powder coke: ikhiqizwa ngenqubo yokupheka ephekiwe ngoketshezi enezinhlayiya ezincane (ububanzi: 0.1-0.4mm), okuqukethwe okuphezulu kokuguquguquka kanye ne-thermal expansion coefficient ephezulu, ngakho-ke ayikwazi ukusetshenziswa ngqo ekulungiseleleni i-electrode kanye nemboni yekhabhoni.
4: I-coke kaphethiloli ene-calcined
Uma i-electrode ye-graphite yokwenza insimbi noma i-anode paste (i-electrode yokuncibilikisa) ye-aluminium ne-magnesium, ukuze kwenziwe i-petroleum coke (i-coke) ihlangabezane nezidingo, i-coke kumele ifakwe i-calcium.
Izinga lokushisa le-calcining ngokuvamile licishe libe ngu-1300℃, inhloso yalo iwukususa ukuwohloka kwe-naphthol coke ngangokunokwenzeka.
Ngale ndlela, okuqukethwe yi-hydrogen kwemikhiqizo ye-petroleum coke kungancishiswa, izinga le-graphitization le-petroleum coke lingathuthukiswa, amandla okushisa aphezulu kanye nokumelana nokushisa kwe-graphite electrode kungathuthukiswa, kanye nokuqhuba kukagesi kwe-graphite electrode kungathuthukiswa.
I-Calcine isetshenziswa kakhulu ukukhiqiza i-graphite electrode, imikhiqizo ye-carbon paste, isihlabathi sedayimane, imboni ye-phosphorus yezinga lokudla, imboni ye-metallurgical kanye ne-calcium carbide, phakathi kwazo i-graphite electrode esetshenziswa kabanzi.
I-Coke ngaphandle kokubumba ingasetshenziswa ngqo njenge-calcium carbide, i-silicon carbide kanye ne-boron carbide njengezinto zokugaya.
Ingasetshenziswa ngqo njenge-coke yesithando somlilo sezimboni ze-metallurgical noma isithando somlilo se-blast esifakwe ngezitini zekhabhoni, futhi ingasetshenziswa ekubunjweni kwenqubo ye-coke encane, njll.
Isikhathi sokuthunyelwe: Novemba-20-2020