Ngezinhlobo ezahlukene zemikhiqizo ye-carbon ne-graphite electrode, ngokwezindlela ezahlukene zokusebenzisa, kunezidingo ezikhethekile zokusebenzisa kanye nezinkomba zekhwalithi. Uma sicabangela ukuthi hlobo luni lwezinto zokusetshenziswa okufanele zisetshenziswe kumkhiqizo othile, kufanele siqale sifunde ukuthi singahlangabezana kanjani nalezi zidingo ezikhethekile kanye nezinkomba zekhwalithi.
(1) Ukukhethwa kwezinto zokusetshenziswa zokwenza i-graphite electrode esetshenziswa enqubweni ye-electrometallurgical njengokwenza insimbi ye-EAF.
I-electrode ye-graphite eqhubayo esetshenziswa enkambisweni ye-electrometallurgical efana nokwenza insimbi ye-EAF kumele ibe nokuqhuba okuhle, amandla afanele omshini, ukumelana okuhle nokucinywa nokushisa ekushiseni okuphezulu, ukumelana nokugqwala kanye nokuqukethwe okuphansi kokungcola.
① Ama-electrode e-graphite asezingeni eliphezulu akhiqizwa nge-petroleum coke, i-pitch coke nezinye izinto zokusetshenziswa eziphansi zomlotha. Kodwa-ke, ukukhiqizwa kwe-graphite electrode kudinga imishini eyengeziwe, ukugeleza kwenqubo ende kanye nobuchwepheshe obuyinkimbinkimbi, futhi ukusetshenziswa kwamandla kwe-1 t graphite electrode kungu-6000 ~ 7000 kW · H.
② I-anthracite esezingeni eliphezulu noma i-coke ye-metallurgical isetshenziswa njengezinto zokusetshenziswa ukukhiqiza i-carbon electrode. Ukukhiqizwa kwe-carbon electrode akudingi imishini ye-graphitization, kanti ezinye izinqubo zokukhiqiza ziyafana nokukhiqizwa kwe-graphite electrode. Ukuqhuba kwe-carbon electrode kubi kakhulu kunokwe-graphite electrode. Ukumelana kwe-carbon electrode ngokuvamile kuphakeme ngokuphindwe kabili-kathathu kunokwe-graphite electrode. Okuqukethwe komlotha kuyahlukahluka ngekhwalithi yezinto zokusetshenziswa, okungaba ngu-10%. Kodwa ngemva kokuhlanza okukhethekile, okuqukethwe komlotha kwe-anthracite kungancishiswa kube ngaphansi kuka-5%. Okuqukethwe komlotha komkhiqizo kungancishiswa kube cishe ngu-1.0% uma umkhiqizo uncishiswa kakhulu. I-carbon electrode ingasetshenziswa ekuncibilikiseni insimbi evamile ye-EAF kanye ne-ferroalloy.
③ Kusetshenziswa i-graphite yemvelo njengezinto zokusetshenziswa, kwakhiqizwa i-electrode ye-graphite yemvelo. I-graphite yemvelo ingasetshenziswa kuphela ngemva kokukhethwa ngokucophelela nokuqukethwe komlotha wayo kuncishisiwe. Ukumelana kwe-electrode ye-graphite yemvelo cishe kuphindwe kabili kune-electrode ye-graphitized. Kodwa amandla omshini aphansi kakhulu, kulula ukuwaphula uma usebenzisa. Endaweni enokukhiqizwa okuningi kwe-graphite yemvelo, i-electrode ye-graphite yemvelo ingakhiqizwa ukuze inikeze i-EAF encane ukuze incibilikise insimbi evamile ye-EAF. Uma usebenzisa i-graphite yemvelo ukukhiqiza i-electrode eqhubayo, imishini nobuchwepheshe kulula ukukuxazulula nokuyiqondisa.
④ I-electrode ye-Graphite isetshenziselwa ukukhiqiza i-electrode evuselelwe (noma i-electrode ephukile eyenziwe nge-graphitized) ngokuchoboza nokugaya udoti noma imikhiqizo engcolile. Okuqukethwe komlotha komkhiqizo akuphezulu (cishe u-1%), futhi ukuhanjiswa kwawo kubi kunokwe-electrode eyenziwe nge-graphitized. Ukumelana kwayo cishe kuphindwe izikhathi eziyi-1.5 kunokwe-electrode eyenziwe nge-graphitized, kodwa umphumela wokusetshenziswa kwayo ungcono kunowe-electrode yemvelo ye-graphite. Nakuba kulula ukuba yingcweti kwezobuchwepheshe kanye nemishini yokukhiqiza i-electrode evuselelwe, umthombo wezinto zokusetshenziswa ze-graphitization ulinganiselwe, ngakho-ke le ndlela akuyona indlela yokuthuthukiswa.
Isikhathi sokuthunyelwe: Juni-11-2021