Ngophuhliso olukhawulezayo lweshishini le-aluminiyam ye-electrolytic, i-aluminium prebaking ye-anode ishishini iye yaba yindawo entsha yotyalo-mali, ukuveliswa kwe-anode ye-prebaking kuyanda, i-petroleum coke yeyona nto iphambili ye-anode yokubhaka, kwaye izalathisi zayo ziya kuba nefuthe elithile kumgangatho. yeemveliso.
Umxholo wesulfure
Isiqulatho sesulphur kwi-petroleum coke ikakhulu sixhomekeke kumgangatho we-oyile ekrwada. Ngokuqhelekileyo, xa umxholo wesulfure we-petroleum coke uphantsi, ukusetyenziswa kwe-anode kuncipha ngokunyuka komxholo wesulfure, kuba isulfure yonyusa izinga lokupheka i-asphalt kwaye inciphisa i-porosity ye-asphalt coking. Ngelo xesha, i-sulfure idibaniswe nokungcola kwesinyithi, ukunciphisa i-Catalysis ngokungcola kwetsimbi ukucinezela i-carbon dioxide reactivity kunye ne-air reactivity ye-carbon anodes. Nangona kunjalo, ukuba umxholo wesulfure uphezulu kakhulu, uya kwandisa i-thermal brittleness ye-carbon anode, kwaye ngenxa yokuba isulfure iguqulwa ikakhulu kwisigaba segesi ngendlela ye-oxides ngexesha lenkqubo ye-electrolysis, iya kuchaphazela kakhulu indawo ye-electrolysis, kwaye uxinzelelo lokusingqongileyo luya kuba lukhulu. Ukongeza, i-sulfuration inokwakheka kwifilimu ye-anode yentsimbi, inyusa ukuhla kombane. Njengoko ukuthengwa kwe-oli ekrwada yelizwe lam kuqhubeleka ukwanda kunye neendlela zokuyilungisa ziqhubeka ziphucuka, umkhwa we-petroleum coke ekumgangatho ophantsi awunakuthintelwa. Ukuze ulungelelanise utshintsho kwizinto eziluhlaza, abavelisi be-anode bangaphambili kunye ne-electrolytic aluminium industry baye baqhuba inani elikhulu leenguqu zeteknoloji kunye nokuphumelela kwezobuchwepheshe. Ukusuka kwi-anode yase-China ephekiweyo yasekhaya Ngokophando lwamashishini emveliso, i-petroleum coke enomxholo wesulfure malunga ne-3% ingabalwa ngokuthe ngqo.
Landela izinto
Ukulandelela izinto kwi-petroleum coke ikakhulu ziquka i-Fe, i-Ca, i-V, i-Na, i-Si, i-Ni, i-P, i-Al, i-Pb, njl. Ezinye izinto zomkhondo zingeniswa kwi-oyile ekrwada, njenge-S, V, njl njl. Ezinye iintsimbi zealkali kunye nesinyithi somhlaba wealkaline nazo ziyakungeniswa, kwaye umxholo othile wothuthu uya kongezwa ngexesha lothutho kunye nokugcinwa, njengeSi, Fe, Ca. , njl I-Ca, V, i-Na, i-Ni kunye nezinye izinto zinempembelelo enamandla kwi-anodic oxidation reaction, ekhuthaza i-oxidation ekhethiweyo ye-anode, ebangela ukuba i-anode iwise i-slag kunye neebhloko, kwaye yandise ukusetyenziswa ngokugqithiseleyo kwe-anode; I-Si kunye ne-Fe ichaphazela kakhulu umgangatho we-aluminium ephambili, kwaye umxholo we-Si uyakwandisa Kuya kwandisa ubulukhuni be-aluminium, ukunciphisa ukuhanjiswa kombane, kunye nokunyuka komxholo we-Fe kunempembelelo enkulu kwi-plastiki kunye nokumelana nokubola kwe-aluminium alloy. Idityaniswe neemfuno zangempela zemveliso zamashishini, umxholo wezinto zokulandelela ezifana neFe, Ca, V, Na, Si, kunye ne-Ni kwi-petroleum coke kufuneka ibe ncinane.
Umcimbi oguquguqukayo
Umxholo oguquguqukayo ophezulu we-petroleum coke ubonisa ukuba inxalenye engaphekiweyo ithwalwa ngakumbi. Umxholo oguquguqukayo ngokugqithisileyo uya kuchaphazela ubuninzi bokwenene be-coke ye-calcined kunye nokunciphisa isivuno sangempela se-coke e-calcined, kodwa isixa esifanelekileyo somxholo oguquguqukayo ulungele ukubalwa kwe-petroleum coke. Emva kokuba i-petroleum coke ibalwa kwiqondo lokushisa eliphezulu, umxholo oguqukayo uyancipha. Ekubeni abasebenzisi abahlukeneyo banolindelo oluhlukeneyo lomxholo oguquguqukayo, udibene neemfuno zangempela zabakhiqizi kunye nabasebenzisi, kuchazwe ukuba umxholo oguquguqukayo akufanele udlule i-10% -12%.
Uthuthu
Ukungcola kwamaminerali angenakutsha (ukulandelela izinto) eziseleyo emva kokuba inxalenye evuthayo ye-petroleum coke itshiswe ngokupheleleyo phantsi kweemeko zokushisa okuphezulu kwama-850 degrees kunye nokujikeleza komoya kubizwa ngokuba ngumlotha. Injongo yokulinganisa uthuthu kukuchonga umxholo wokungcola kwezimbiwa (trace elements) Ingakanani, ukuze kuhlolwe umgangatho wepetroleum coke. Ukulawula umxholo wothuthu kuya kulawula kwakhona izinto zokulandelela. Umxholo womlotha ogqithisileyo uya kuchaphazela ngokuqinisekileyo umgangatho we-anode ngokwayo kunye ne-aluminium ephambili. Idityaniswe neemfuno zangempela zabasebenzisi kunye neyona meko yokuvelisa yamashishini, kuchazwe ukuba umxholo womlotha awufanele udlule kwi-0.3% -0.5%.
Ukufuma
Imithombo ephambili yamanzi kwi-petroleum coke: Okokuqala, xa i-coke tower ikhutshwa, i-petroleum coke ikhutshwe kwi-coke pool phantsi kwesenzo sokusika i-hydraulic; okwesibini, ngokwembono yokhuseleko, emva kokuba i-coke ikhutshwe, i-petroleum coke engazange ipholiswe ngokupheleleyo idinga ukutshizwa ukupholisa okwesithathu, i-petroleum coke ibekwe ngokusisiseko kwindawo evulekileyo kumachibi e-coke kunye neeyadi zokugcina, kwaye isiqulatho sokufuma siya kuchaphazeleka nokusingqongileyo; okwesine, i-petroleum coke inezakhiwo ezahlukeneyo kunye nobuchule obuhlukeneyo bokugcina ukufuma.
Umxholo weCoke
Ubungakanani be-particle ye-petroleum coke inempembelelo enkulu kwisivuno sangempela, ukusetyenziswa kwamandla kunye ne-coke calcined. I-petroleum coke enomxholo ophezulu we-powder coke inelahleko enkulu yekhabhoni ngexesha lenkqubo yokubala. Ukudubula kunye nezinye iimeko kunokukhokelela ngokulula kwiingxaki ezifana nokuqhekeka kwangaphambili komzimba wesithando somlilo, ukutshisa ngokugqithiseleyo, ukuvalelwa kwe-valve yokukhupha, ukukhululeka kunye nokulula kwe-pulverization ye-coke calcined, kunye nokuchaphazela ubomi be-calciner. Kwangaxeshanye, ukuxinana kokwenyani, ukuxinana kwempompo, i-porosity, kunye namandla e-coke e-calcined, Ukumelana nokusebenza kwe-oxidation kunempembelelo enkulu. Ngokusekelwe kwimeko ethile yomgangatho wokuvelisa i-petroleum coke yasekhaya, inani le-powder coke (5mm) lilawulwa ngaphakathi kwe-30% -50%.
Shot umxholo wecoke
I-shot coke, nekwaziwa ngokuba yi-spherical coke okanye i-shot coke, iqinile noko, ixinene kwaye ayinaporeshi, kwaye ikhona ikwimo yobuninzi obutyhidiweyo obungqukuva. Umphezulu we-shot coke ulungile, kwaye isakhiwo sangaphakathi asihambisani nangaphandle. Ngenxa yokunqongophala kweepores kumphezulu, xa uxova nge-binder coal tar pitch, kunzima ukuba i-binder ingene ngaphakathi kwi-coke, okukhokelela ekubopheni okuxekethileyo kunye nokuthambekela kwiziphene zangaphakathi. Ukongeza, i-coefficient yokwandisa i-thermal ye-shot coke iphezulu, enokubangela ukuba kube lula ukuqhekeka kwe-thermal xa i-anode ibhakwa. I-petroleum coke esetyenziswe kwi-anode ebhakiwe kwangaphambili kufuneka ingaqulathi i-coke edutshulwa.
Catherine@qfcarbon.com +8618230208262
Ixesha lokuposa: Dec-20-2022