I-coke Calcined iwuhlobo lwe-carburizer kanye ne-petroleum coke yemininingwane ehlukahlukene.
Ukucaciswa okuyinhloko kwemikhiqizo ye-graphite ￠150-￠1578 namanye amamodeli. Kubaluleke kakhulu emabhizinisini ensimbi nensimbi, amabhizinisi e-silicon polysilicon yezimboni, amabhizinisi e-emery, imboni yezinto ze-aerospace neminye imikhiqizo.
1: I-petroleum coke
I-petroleum coke ingumkhiqizo we-petroleum omnyama noma omnyama oqinile ocwebezelayo futhi unezimbotshana. Kuyi-granular, i-columnar, noma impahla ye-carbonaceous efana nenaliti ehlanganisa amakristalu e-graphite amancane.
I-petroleum coke iqukethe ama-hydrocarbons, i-90-97% yekhabhoni, i-1.5-8% ye-hydrogen, i-nitrogen, i-chlorine, isulfure, nezinhlanganisela zensimbi ezisindayo.
I-petroleum coke iwumkhiqizo we-pyrolysis kawoyela ongahluziwe kuyunithi yokupheka ebambezelekile ukuze kukhiqizwe uwoyela olula ekushiseni okuphezulu.
Umphumela we-petroleum coke cishe u-25-30% walowo wamafutha aluhlaza.
Inani layo le-calorific eliphansi limayelana nezikhathi ezingu-1.5-2 zamalahle, okuqukethwe komlotha akukho ngaphezu kwe-0.5%, okuqukethwe okuguquguqukayo kumayelana ne-11%, futhi ikhwalithi yayo iseduze ne-anthracite.
2: Izinga lekhwalithi ye-petroleum coke I-coke ye-petroleum ebambezelekile ibhekisela ku-coke ekhiqizwa iyunithi yokupheka ebambezelekile, eyaziwa nangokuthi i-coke evamile, akukho okuhambisanayo ## okujwayelekile.
Njengamanje, amabhizinisi okukhiqiza asekhaya akhiqiza ikakhulukazi ngokwezinga lemboni i-SH0527-92 elakhiwe yinkampani yangaphambili yase-China Petrochemical Corporation.
Izinga lihlukaniswa ngokuyinhloko ngokusho kokuqukethwe kwesibabule se-petroleum coke.
I-coke engu-1 ilungele ukwenza i-electrode yamandla ajwayelekile e-graphite embonini yokwenza insimbi, iphinde isetshenziswe njengekhabhoni yokucwenga i-aluminium.
I-coke engunombolo 2 isetshenziselwa ukunamathisela i-electrode kanye nokukhiqizwa kwe-electrode ye-graphite kuseli ye-electrolytic (isithando somlilo) embonini yokuncibilikisa i-aluminium.
I-coke engu-3 isetshenziswa ekukhiqizeni i-silicon carbide (izinto zokugaya) ne-calcium carbide (i-calcium carbide), kanye neminye imikhiqizo ye-carbon, kanye nokukhiqizwa kwama-anode blocks e-aluminium smelter nasekwakhiweni kwe-carbon lining. izitini noma isithando somlilo phansi esithandweni somlilo.
3: UKUSETSHENZISWA okuyinhloko kwe-petroleum coke
UKUSETSHENZISWA okuyinhloko kwe-petroleum coke yi-anode ebhakwe ngaphambilini ne-anode paste ye-electrolytic aluminium, ukukhiqizwa kwekhabhoni ye-carbonizing agent, i-graphite electrode, ukuncibilikisa i-silicon yezimboni nophethiloli, njll.
Ngokwesakhiwo nokubukeka kwe-petroleum coke, imikhiqizo ye-petroleum coke ingahlukaniswa ngenaliti ye-coke, i-sponge coke, i-projectile coke ne-powder coke:
(1) I-coke emise njengenaliti, enesakhiwo esisobala njengenaliti kanye nokuthungwa kwefayibha, isetshenziswa kakhulu njenge-electrode yegraphite yamandla aphezulu kanye ne-ultra-high-power graphite electrode ekwenzeni insimbi.
Ngenxa yokuthi i-needle coke inezidingo eziqinile zenkomba yekhwalithi kokuqukethwe kwesibabule, okuqukethwe komlotha, okuqukethwe okuguquguqukayo nokuqina kweqiniso, kunezidingo ezikhethekile kubuchwepheshe bokukhiqiza nezinto zokusetshenziswa ze-coke yenaliti.
(2) I-sponge coke, ene-high chemical reactivity kanye nokungcola okuphansi, isetshenziswa kakhulu embonini yokuncibilikisa i-aluminium kanye nemboni ye-carbon.
(3) I-projectile coke noma i-coke eyindilinga: iyindilinga futhi inobubanzi obungu-0.6-30mm. Ivame ukukhiqizwa kusuka ezinsaleni zesulfure ephezulu kanye ne-asphaltene ephezulu futhi ingasetshenziswa kuphela ukukhiqiza ugesi, usimende nezinye izibaseli zezimboni.
(4) I-powder coke: ikhiqizwa inqubo yokupheka e-fluidized enezinhlayiya ezinhle (ububanzi: 0.1-0.4mm), okuqukethwe okuphezulu kwe-volatilization kanye ne-coefficient ephezulu yokwandisa ukushisa, ngakho ayikwazi ukusetshenziswa ngokuqondile ekulungiseleleni i-electrode kanye nemboni ye-carbon.
4: I-coke ye-petroleum ene-calcined
Lapho i-electrode ye-graphite yokwenza insimbi noma i-anode paste (i-electrode encibilikayo) ye-aluminium ne-magnesium, ukuze kwenziwe i-petroleum coke (coke) ihlangabezane nezidingo, i-coke kufanele ibalwe.
Izinga lokushisa lokubala ngokuvamile liba ngu-1300 ℃, inhloso yalo okuwukuqeda ukuvuvukalisa kwe-naphthol coke ngangokunokwenzeka.
Ngale ndlela, okuqukethwe kwe-hydrogen ye-petroleum coke reproducts kungancishiswa, izinga le-graphitization le-petroleum coke lingathuthukiswa, amandla okushisa aphezulu nokumelana nokushisa kwe-graphite electrode kungathuthukiswa, futhi ukuqhutshwa kukagesi kwe-graphite electrode kungathuthukiswa. .
I-Calcining isetshenziselwa ikakhulukazi ukukhiqiza i-graphite electrode, imikhiqizo ye-carbon paste, isihlabathi sedayimane, imboni ye-phosphorus-grade-grade, imboni ye-metallurgical kanye ne-calcium carbide, phakathi kwayo i-graphite electrode isetshenziswa kabanzi.
I-coke ngaphandle kokubumba ingasetshenziswa ngokuqondile njenge-calcium carbide, i-silicon carbide ne-boron carbide njengezinto zokugaya.
Ingase futhi isetshenziswe ngokuqondile njenge-coke yesithando somlilo semboni ye-metallurgical noma i-blast furnace lining carbon brick, futhi ingasetshenziselwa ukuphonsa inqubo ye-compact coke, njll.
Isikhathi sokuthumela: Nov-20-2020