Ngokuthuthuka okusheshayo kwemboni ye-aluminium e-electrolytic, imboni ye-anode ye-aluminium prebaking isibe yindawo entsha yokutshalwa kwezimali, ukukhiqizwa kwe-anode ye-prebaking kuyanda, i-petroleum coke iyinto eyinhloko eluhlaza ye-anode ye-prebaking, futhi izinkomba zayo zizoba nomthelela othile kwikhwalithi yemikhiqizo.
Okuqukethwe kwe-sulfur
Okuqukethwe kwe-sulfur ku-petroleum coke kuncike kakhulu kwikhwalithi kawoyela ongahluziwe. Ngokuvamile, lapho okuqukethwe kwe-sulfur ku-petroleum coke kuphansi, ukusetshenziswa kwe-anode kwehla ngokwanda kokuqukethwe kwe-sulfur, ngoba i-sulfur yandisa izinga lokugoba kwe-asphalt futhi inciphisa ukugoba kwe-asphalt coking. Ngesikhathi esifanayo, i-sulfur nayo ihlanganiswa nokungcola kwensimbi, kunciphisa i-Catalysis ngokungcola kwensimbi ukuze kucindezelwe ukusabela kwe-carbon dioxide kanye nokusabela komoya kwama-carbon anode. Kodwa-ke, uma okuqukethwe kwe-sulfur kuphakeme kakhulu, kuzokhulisa ukuqina kokushisa kwe-carbon anode, futhi ngoba i-sulfur iguqulwa kakhulu ibe yisigaba segesi ngesimo sama-oxide ngesikhathi senqubo ye-electrolysis, izothinta kakhulu indawo ye-electrolysis, futhi ingcindezi yokuvikela imvelo izoba nkulu. Ngaphezu kwalokho, i-sulfuration ingakheka ku-anode rod Iron film, okwandisa ukwehla kwamandla kagesi. Njengoba ukungeniswa kukawoyela ongahluziwe ezweni lami kuqhubeka nokwanda futhi izindlela zokucubungula ziqhubeka nokuthuthuka, ukuthambekela kwe-petroleum coke ephansi akunakugwenywa. Ukuze bazivumelanise nezinguquko ezintweni zokusetshenziswa, abakhiqizi be-anode ebhakiwe kusengaphambili kanye nemboni ye-aluminium ye-electrolytic benze izinguquko eziningi kwezobuchwepheshe kanye nokuthuthuka kwezobuchwepheshe. Kusukela ku-anode ebhakiwe kusengaphambili yasekhaya yaseShayina Ngokusho kocwaningo lwamabhizinisi okukhiqiza, i-petroleum coke enokuqukethwe kwesulfure okungaba ngu-3% ngokuvamile ingafakwa i-calcium ngqo.
Izinto zokulandelela
Izinto ezilandelanayo ku-petroleum coke zifaka phakathi i-Fe, i-Ca, i-V, i-Na, i-Si, i-Ni, i-P, i-Al, i-Pb, njll. Ngenxa yemithombo ehlukene yamafutha ezindawo zokuhlanza i-petroleum, ukwakheka nokuqukethwe kwezinto ezilandelanayo kuhlukile kakhulu. Ezinye izinto ezilandelanayo zilethwa kusuka ku-oyili ongahluziwe, njenge-S, i-V, njll. Ezinye izinsimbi ze-alkali kanye nezinsimbi zomhlaba ze-alkaline nazo zizolethwa, futhi okunye okuqukethwe komlotha kuzongezwa ngesikhathi sokuthuthwa nokugcinwa, njenge-Si, i-Fe, i-Ca, njll. Okuqukethwe kwezinto ezilandelanayo ku-petroleum coke kuthinta ngqo impilo yesevisi yama-anode abhakiwe ngaphambilini kanye nekhwalithi kanye nezinga lemikhiqizo ye-aluminium ye-electrolytic. I-Ca, i-V, i-Na, i-Ni nezinye izinto zinomthelela omkhulu we-catalytic ekusabeleni kwe-anodic oxidation, okukhuthaza i-oxidation ekhethiwe ye-anode, okubangela ukuthi i-anode iwele phansi i-slag nama-block, futhi kwandise ukusetshenziswa ngokweqile kwe-anode; i-Si ne-Fe zithinta kakhulu ikhwalithi ye-aluminium eyinhloko, futhi okuqukethwe kwe-Si kuyanda. Kuzokhulisa ubulukhuni be-aluminium, kunciphise ukuqhuba kukagesi, futhi ukwanda kokuqukethwe kwe-Fe kunethonya elikhulu ekuqineni nasekumelaneni kokugqwala kwe-aluminium alloy. Uma kuhlanganiswa nezidingo zangempela zokukhiqiza zamabhizinisi, okuqukethwe kwezinto ezincane ezifana ne-Fe, Ca, V, Na, Si, kanye ne-Ni ku-petroleum coke kufanele kulinganiselwe.
Izinto eziguquguqukayo
Okuqukethwe okuphezulu kokuguquguqukayo kwe-petroleum coke kubonisa ukuthi ingxenye engaphekiwe ithwalwa kakhulu. Okuqukethwe okuphezulu kokuguquguqukayo kuzothinta ubuningi beqiniso be-calcined coke futhi kunciphise isivuno sangempela se-calcined coke, kodwa inani elifanele lokuqukethwe okuguquguqukayo likhuthaza ukuncishiswa kwe-petroleum coke. Ngemva kokuba i-petroleum coke incishisiwe ekushiseni okuphezulu, okuqukethwe okuguquguqukayo kuyancipha. Njengoba abasebenzisi abahlukene benamathemba ahlukene ngokuqukethwe okuguquguqukayo, kuhlanganiswe nezidingo zangempela zabakhiqizi nabasebenzisi, kunqunywe ukuthi okuqukethwe okuguquguqukayo akufanele kudlule u-10%-12%.
Umlotha
Ukungcola kwamaminerali okungashi (izinto zokulandelela) okusele ngemuva kokuba ingxenye evuthayo ye-petroleum coke ishiswe ngokuphelele ngaphansi kwesimo sokushisa okuphezulu kwama-degrees angu-850 kanye nokugeleza komoya kubizwa ngokuthi umlotha. Inhloso yokulinganisa umlotha ukuhlonza okuqukethwe kokungcola kwamaminerali (izinto zokulandelela) Kungakanani, ukuze kuhlolwe ikhwalithi ye-petroleum coke. Ukulawula okuqukethwe komlotha kuzolawula nezinto zokulandelela. Okuqukethwe komlotha okweqile kuzothinta ikhwalithi ye-anode uqobo kanye ne-aluminium eyinhloko. Uma kuhlanganiswa nezidingo zangempela zabasebenzisi kanye nesimo sangempela sokukhiqiza samabhizinisi, kunqunywe ukuthi okuqukethwe komlotha akufanele kudlule u-0.3%-0.5%.
Umswakama
Imithombo eyinhloko yokuqukethwe kwamanzi ku-petroleum coke: Okokuqala, lapho umbhoshongo we-coke ukhishwa, i-petroleum coke ikhishwa iye echibini le-coke ngaphansi kwesenzo sokusika kwe-hydraulic; okwesibili, ngokombono wokuphepha, ngemva kokuba i-coke ikhishwe, i-petroleum coke engakapholi ngokuphelele idinga ukufuthwa ukuze iphole. Okwesithathu, i-petroleum coke ibekwe emoyeni ovulekile emachibini e-coke nasezindaweni zokugcina izinto, futhi okuqukethwe kwayo komswakama nakho kuzothinteka yimvelo; okwesine, i-petroleum coke inezakhiwo ezahlukene kanye nekhono elihlukile lokugcina umswakama.
Okuqukethwe kwe-Coke
Usayizi wezinhlayiya ze-petroleum coke unethonya elikhulu ekuvuneni kwangempela, ukusetshenziswa kwamandla kanye ne-calcined coke. I-petroleum coke enokuqukethwe okuphezulu kwe-powder coke inokulahlekelwa okukhulu kwekhabhoni ngesikhathi senqubo ye-calcination. Ukudubula nezinye izimo kungaholela kalula ezinkingeni ezifana nokuphuka komzimba wesithando somlilo kusenesikhathi, ukushiswa ngokweqile, ukuvaleka kwevalvu yokukhipha, ukucolwa okulula nokukhululekile kwe-calcined coke, futhi kuthinte impilo ye-calciner. Ngesikhathi esifanayo, ubuningi beqiniso, ubuningi be-tap, i-porosity, kanye namandla e-calcined coke, i-Resistivity kanye nokusebenza kwe-oxidation kunethonya elikhulu. Ngokusekelwe esimweni esithile sekhwalithi yokukhiqizwa kwe-petroleum coke yasekhaya, inani le-powder coke (5mm) lilawulwa ngaphakathi kwama-30%-50%.
Okuqukethwe kwe-coke okudutshulwe
I-Shot coke, eyaziwa nangokuthi i-spherical coke noma i-shot coke, iqinile, iminyene futhi ayinazo izimbobo, futhi ikhona ngesimo sezinqwaba ezincibilikisiwe eziyindilinga. Ubuso be-shot coke bubushelelezi, futhi isakhiwo sangaphakathi asihambisani nengaphandle. Ngenxa yokuntuleka kwezimbobo ebusweni, lapho kuxutshwa nge-binder coal tar pitch, kunzima ukuthi i-binder ingene ngaphakathi kwe-coke, okuholela ekubopheni okuxekethile futhi kube nezinkinga zangaphakathi. Ngaphezu kwalokho, i-thermal expansion coefficient ye-shot coke iphezulu, okungase kubangele kalula ukuqhekeka kokushisa lapho i-anode ibhakwa. I-petroleum coke esetshenziswa ku-anode ebhakiwe ngaphambilini akumele iqukathe i-shot coke.
Catherine@qfcarbon.com +8618230208262
Isikhathi sokuthunyelwe: Disemba-20-2022