Ngokuthuthuka okusheshayo kwemboni ye-aluminium ye-electrolytic, imboni ye-aluminium prebaking anode isiphenduke indawo entsha yokutshala imali, ukukhiqizwa kwe-anode yokubhaka kuyanda, i-petroleum coke iyimpahla eyinhloko ye-prebaking anode, futhi izinkomba zayo zizoba nomthelela othile kwikhwalithi. kwemikhiqizo.
Okuqukethwe kwesibabule
Okuqukethwe kwesibabule ku-petroleum coke kuncike kakhulu eqophelweni likawoyela ongahluziwe. Ngokuvamile, lapho isibabule se-petroleum coke siphansi, ukusetshenziswa kwe-anode kuncipha ngokwanda kwesibabule, ngoba isulfure inyusa izinga lokuphekwa kwetiyela futhi yehlisa ukugcwala kwe-asphalt coking. Ngasikhathi sinye, isibabule siphinde sihlanganiswe nokungcola kwensimbi, kunciphisa i-Catalysis ngokungcola kwensimbi ukucindezela ukusebenza kabusha kwe-carbon dioxide kanye nokusebenza kabusha komoya kwe-carbon anode. Kodwa-ke, uma okuqukethwe kwesibabule kuphezulu kakhulu, kuzokwandisa ukuvutha okushisayo kwe-carbon anode, futhi ngenxa yokuthi isibabule ngokuyinhloko siguqulwa sibe yisigaba segesi ngesimo sama-oxides ngesikhathi senqubo ye-electrolysis, sizothinta kakhulu imvelo ye-electrolysis, futhi ingcindezi yokuvikelwa kwemvelo izoba mkhulu. Ngaphezu kwalokho, i-sulfuration ingase yakheke ku-anode rod Iron film, ikhulise ukwehla kwamandla kagesi. Njengoba ukuthengwa kukawoyela ongahluziwe wezwe lami kuqhubeka kwanda nezindlela zokucubungula ziqhubeka nokuba ngcono, inkambiso ye-oyili ephansi ye-petroleum coke ayinakugwenywa. Ukuze uvumelane nezinguquko zezinto zokusetshenziswa, abakhiqizi be-anode ababhakiwe ngaphambili kanye nemboni ye-electrolytic aluminium benze inani elikhulu lokuguqulwa kwezobuchwepheshe kanye nempumelelo kwezobuchwepheshe. Kusuka ku-anode yasekhaya ephekiwe yaseShayina Ngokophenyo lwamabhizinisi okukhiqiza, i-petroleum coke enesulfure engaba ngu-3% ngokuvamile ingabalwa ngokuqondile.
Landelela izakhi
I-trace elements ku-petroleum coke ikakhulukazi ihlanganisa i-Fe, i-Ca, V, i-Na, i-Si, i-Ni, i-P, i-Al, i-Pb, njll. Ngenxa yemithombo ehlukene kawoyela yezihlungi ze-petroleum, ukwakheka nokuqukethwe kwezakhi zokulandelela kuhluke kakhulu. Ezinye izakhi zokulandelela zilethwa zisuka kuwoyela ongahluziwe, njenge-S, V, njll. Ezinye izinsimbi ze-alkali nezinsimbi ze-alkaline zomhlaba nazo zizolethwa, futhi okunye okuqukethwe komlotha kuzokwengezwa ngesikhathi sokuthutha nokugcinwa, njenge-Si, Fe, Ca. , njll. Okuqukethwe kwama-trace elements ku-petroleum coke kuthinta ngokuqondile impilo yesevisi yama-anode abhakwe ngaphambilini kanye nekhwalithi nebanga lemikhiqizo ye-electrolytic aluminium. I-Ca, V, Na, Ni nezinye izakhi zinomphumela oqinile we-catalytic ekuphenduleni kwe-anodic oxidation, okukhuthaza i-oxidation ekhethiwe ye-anode, okubangela ukuthi i-anode iwise i-slag namabhulokhi, futhi ikhulise ukusetshenziswa ngokweqile kwe-anode; I-Si ne-Fe ikakhulukazi ithinta ikhwalithi ye-aluminium eyinhloko, futhi okuqukethwe kwe-Si kuyanda Kuzokwandisa ubulukhuni be-aluminium, kunciphise ukuqhutshwa kukagesi, futhi ukwanda kokuqukethwe kwe-Fe kunomthelela omkhulu epulasitiki kanye nokumelana nokubola kwe-aluminium alloy. Kuhlanganiswe nezidingo zangempela zokukhiqiza zamabhizinisi, okuqukethwe kwezakhi zokulandelela ezifana ne-Fe, Ca, V, Na, Si, kanye ne-Ni ku-petroleum coke kufanele kukhawulelwe.
Indaba eguquguqukayo
Izinga eliphezulu lokuguquguquka kwe-petroleum coke libonisa ukuthi ingxenye engaphekiwe ithwalwa kakhulu. Okuqukethwe okuguquguqukayo okuphezulu kakhulu kuzothinta ukuminyana kwangempela kwe-coke e-calcined futhi kunciphise isivuno sangempela se-coke e-calcined, kodwa inani elifanele lokuqukethwe okuguquguqukayo lisiza ukubalwa kwe-petroleum coke. Ngemva kokuba i-petroleum coke ibalwa ekushiseni okuphezulu, okuqukethwe okuguquguqukayo kuncipha. Njengoba abasebenzisi abahlukene benokulindela okuhlukile kokuqukethwe okuguquguqukayo, kuhlanganiswe nezidingo zangempela zabakhiqizi nabasebenzisi, kubekwe ukuthi okuqukethwe okuguquguqukayo akufanele kudlule u-10% -12%.
Umlotha
Ukungcola kwamaminerali angenakushiswa (ukulandelela izakhi) okusele ngemuva kokuba ingxenye evuthayo ye-petroleum coke ishiswe ngokuphelele ngaphansi kwesimo sokushisa okuphezulu kwama-degrees angu-850 kanye nokujikeleza komoya kubizwa ngokuthi umlotha. Inhloso yokulinganisa umlotha ukukhomba okuqukethwe ukungcola kwamaminerali (trace elements) Kungakanani, ukuze kuhlolwe izinga le-petroleum coke. Ukulawula okuqukethwe komlotha kuzophinde kulawule izakhi zokulandelela. Okuqukethwe komlotha okweqile kuzothinta ikhwalithi ye-anode ngokwayo kanye ne-aluminium eyinhloko. Kuhlanganiswe nezidingo zangempela zabasebenzisi kanye nesimo sangempela sokukhiqiza samabhizinisi, kubekwe ukuthi okuqukethwe komlotha akufanele kudlule u-0.3% -0.5%.
Umswakama
Imithombo eyinhloko yokuqukethwe kwamanzi ku-petroleum coke: Okokuqala, lapho i-coke tower ikhishwa, i-petroleum coke ikhishwa echibini le-coke ngaphansi kwesenzo sokusika i-hydraulic; okwesibili, ngokombono wezokuphepha, ngemva kokuba i-coke isikhishiwe, i-petroleum coke engakapholiswa ngokuphelele idinga ukufafazwa ukuze iphole Okwesithathu, i-petroleum coke ibekwa ngokuyisisekelo endaweni evulekile emachibini e-coke nasemagcekeni okugcina impahla, okuqukethwe komswakama nakho kuzothintwa imvelo; okwesine, i-petroleum coke inezakhiwo ezahlukene kanye nekhono elihlukile lokugcina umswakama.
Okuqukethwe kwe-coke
Usayizi wezinhlayiyana ze-petroleum coke unethonya elikhulu ekuvunweni kwangempela, ukusetshenziswa kwamandla kanye ne-coke e-calcined. I-petroleum coke ene-powder coke content inokulahlekelwa okukhulu kwekhabhoni phakathi nenqubo yokubala. Ukudubula nezinye izimo kungaholela kalula ezinkingeni ezinjengokuphuka kwangaphambi kwesikhathi kwesithando somlilo, ukushisa ngokweqile, ukuvaleka kwe-valve yokukhipha, ukuxega okuxekethile nokulula kwe-coke e-calcined, futhi kuthinte ukuphila kwe-calciner. Ngesikhathi esifanayo, ukuminyana kwangempela, ukuminyana kompompi, i-porosity, namandla we-coke ehlanganisiwe , Ukumelana nokusebenza kwe-oxidation kunethonya elikhulu. Ngokusekelwe esimweni esithile sekhwalithi yokukhiqiza i-petroleum coke yasekhaya, inani le-powder coke (5mm) lilawulwa ngaphakathi kwe-30% -50%.
Shot okuqukethwe kwe-coke
I-Shot coke, eyaziwa nangokuthi i-spherical coke noma i-shot coke, iqinile uma kuqhathaniswa, iminyene futhi ayinazimbotshana, futhi ikhona ngesimo senqwaba encibilikisiwe eyindilinga. Ubuso be-shot coke bushelelezi, futhi isakhiwo sangaphakathi asihambisani nengaphandle. Ngenxa yokuntuleka kwezimbotshana ebusweni, lapho uxova nge-binder coal tar pitch, kuba nzima nge-binder ukuthi ingene ngaphakathi kwe-coke, okuholela ekubopheni okuxekethile futhi kujwayele ukukhubazeka kwangaphakathi. Ukwengeza, i-coefficient yokwandisa ukushisa kwe-shot coke iphezulu, okungase kubangele kalula imifantu yokushaqeka okushisayo lapho i-anode ibhakwa. I-petroleum coke esetshenziswe ku-anode ephekwe ngaphambilini akumele ibe ne-shot coke.
Catherine@qfcarbon.com +8618230208262
Isikhathi sokuthumela: Dec-20-2022