Iielectrode zegraphitengamacandelo abalulekileyo ekusebenzeni kwee-arc furnaces, asebenza indima ebalulekileyo kwiinkqubo ezahlukeneyo zamashishini.
Iielectrode zegraphite zenziwe ngokuyintloko ngohlobo lwekhabhoni ebizwa ngokuba yigraphite, eluhlobo lwecrystalline lwe element carbon. Igraphite ineempawu ezizodwa ezenza ukuba ilungele ukusetyenziswa kwii-electrode, ezinje nge-conductivity ephezulu yombane, ukumelana nobushushu kunye neekhemikhali, kunye ne-coefficient ephantsi yokwanda kwe-thermal. Ezi zakhiwo zenza ukuba i-electrode yegraphite isebenze ngokugqwesileyo kwizicelo zesithando somlilo se-arc.
IInkqubo yokuvelisa i-graphite electrodeibandakanya amanyathelo aliqela. Iqala ngokukhethwa kwezinto eziphezulu zegraphite, ezithi emva koko zicolwe kwaye zixutywe kunye nezinto ezibophayo, ezifana ne-tar pitch yamalahle okanye i-petroleum coke. Lo mxube umiliselwe kwifomu ye-electrode efunwayo usebenzisa inkqubo yokubumba. Emva kokubumba, i-electrodes iphantsi kwenkqubo yokubhaka ukususa i-binder kunye nokuqinisa ngakumbi isakhiwo sekhabhoni. Oku kulandelwa yinkqubo yegraphitization, equka ukufudumeza i-electrode ukuya kumaqondo obushushu amalunga nama-3000 ngokukaCelsius ukuziguqula zibe yigraphite. Ekugqibeleni, i-electrode idlula uluhlu lweemvavanyo zokulawula umgangatho ukuqinisekisa ukusebenza kwabo kunye nokuthembeka.
I-electrode yegraphite ifumana ukusetyenziswa okubanzi kwiinkqubo ezahlukeneyo zemizi-mveliso, ngakumbi kwii-arc zombane zombane. Ezi zixhobo zisetyenziselwa ukuveliswa kwentsimbi, apho i-electrode yegraphite isebenza njengezinto zokuqhuba ukuvelisa nokugcina i-arc yombane, enyibilikisa izinto eziluhlaza kwaye ivumela ukubunjwa kwesinyithi esityhidiweyo. Ukongeza, ii-electrode zegraphite zisetyenziswa kwezinye iinkqubo zetsimbi ezifana nokuveliswa kweeferroalloys, isinyithi sesilicon, kunye ne-calcium carbide.
Ukubaluleka kwee-electrode zegraphite kwiindawo zoshishino azikwazi ukugqithiswa. I-conductivity yabo ephezulu ye-thermal ivumela ukuhanjiswa kobushushu ngokufanelekileyo, okwenza ukunyibilika ngokukhawuleza kunye nokuchaneka ngakumbi kwezinto eziphathekayo kwii-arc furnaces. Iielectrode zegraphite zikwabonisa ukuxhathisa okugqwesileyo kumothuko we-thermal, ukuthintela ukuqhekeka okanye ukwaphuka phantsi kweemeko zobushushu obugqithisileyo. Oku kuqina kuqinisekisa ubomi obude be-electrode kwaye kunciphisa ixesha lokuphumla kunye neendleko zokugcina.
Ngaphezu koko, iigraphite electrode conductivity yombaneyenye into ebalulekileyo ekubalulekeni kwabo kwezoshishino. I-conductivity ephezulu yenza ukuhamba kakuhle kombane ngokusebenzisa i-electrodes, okubangela ukuba i-arc ezinzile kunye ne-arc ngexesha lokunyibilika. Oku kuqinisekisa ukuhanjiswa okufanayo kunye nokulawulwa kokushisa, okukhokelela ekuphuculeni umgangatho wensimbi kunye nokuhambelana.
Ubungakanani kunye nomgangatho wee-electrode zegraphite zichaphazela kakhulu ukusebenza kwazo kwi-arc furnace operations. Imilinganiselo yee-electrodes, ezifana nobubanzi kunye nobude bayo, iyahluka ngokuxhomekeka kuyilo oluthile lwesithando somlilo kunye neemfuno zokuvelisa. Abavelisi bavelisa uluhlu olubanzi lobungakanani be-electrode ukulungiselela iintlobo ezahlukeneyo zesithando somlilo kunye nobuchule.
Abavelisi bee-electrode zegraphiteidlala indima ebalulekileyo ekuboneleleni ngezi nxalenye zibalulekileyo kumashishini ehlabathi jikelele. Aba bavelisi kufuneka babambelele kwimilinganiselo engqongqo yokulawula umgangatho wokuqinisekisa ukuveliswa kwee-electrode ezihlangabezana nemigangatho yoshishino. Ulawulo lomgangatho lubandakanya iimvavanyo zeempawu ezibonakalayo, ezifana nokuxinana kunye nokwandiswa kwe-thermal, kunye neempawu zombane, ezifana nokuxhathisa kunye nokuxhatshazwa kombane. Ngokugcina imigangatho yomgangatho ohambelanayo, abavelisi be-graphite electrode bafaka isandla ekusebenzeni kakuhle kunye nemveliso yemisebenzi yesithando somlilo we-arc.
Ukuqukumbela, ii-electrode zegraphite zibalulekile ekusebenzeni kwee-arc furnaces kwaye zidlala indima ebalulekileyo kwiinkqubo ezininzi zoshishino. Iimpawu zabo ezikhethekileyo, ezifana nokuhamba kombane ophezulu, ukuxhathisa i-thermal, kunye nokuqina, kubenza balungele ukusetyenziswa kwezi zicelo. Inkqubo yokwenziwa kwee-electrode zegraphite ibandakanya ukukhetha ngononophelo kwemathiriyeli yegraphite ekumgangatho ophezulu, elandelwa luthotho lwamanyathelo afana nokuxuba, ukubumba, ukubhaka, kunye negraphitization. I-electrode yegraphite ifumana izicelo kwimveliso yentsimbi kunye neenkqubo ezahlukeneyo zetsimbi. Ukubaluleka kwabo kukwazi ukudlulisa ukushisa ngokufanelekileyo, ukuxhathisa ukutshitshiswa kwe-thermal, kunye nokubonelela nge-conductivity yombane ezinzileyo. Ngokubanzi, abavelisi be-electrode be-graphite badlala indima ebalulekileyo ekuboneleleni kwee-electrode ezikumgangatho ophezulu kunye nokuqinisekisa ukusebenza kakuhle kunye nokuthembeka kwemisebenzi yoshishino.
QHAGAMSHELANA NATHIUKUFUMANA ULWAZI OLULUNGILEYO NGE-GRAPHITE ELECTRODES.
Ixesha lokuposa: Oct-11-2023