Kwiintlobo ezahlukeneyo zeemveliso ze-carbon kunye ne-graphite electrode, ngokweendlela ezahlukeneyo zokusetyenziswa kwazo, kukho iimfuno ezikhethekileyo zokusetyenziswa kunye neempawu zomgangatho. Xa sicinga ngohlobo lwezinto ezikrwada ekufuneka zisetyenziswe kwimveliso ethile, kufuneka siqale sifunde indlela yokuhlangabezana nezi mfuno zikhethekileyo kunye nezibonakaliso zomgangatho.
(1) Ukukhethwa kwezinto zokwenza i-graphite electrode ezisetyenziswa kwinkqubo ye-electrometallurgical efana nokwenza intsimbi ye-EAF.
I-electrode yegrafiti eqhubayo esetyenziswa kwinkqubo ye-electrometallurgical efana nokwenza intsimbi ye-EAF kufuneka ibe ne-conductivity elungileyo, amandla afanelekileyo oomatshini, ukumelana okuhle nokucinywa nokufudumeza kubushushu obuphezulu, ukumelana nokugqwala kunye nomxholo ophantsi wokungcola.
① Ii-electrode zegrafiti ezisemgangathweni ophezulu ziveliswa kwi-petroleum coke, i-pitch coke kunye nezinye izinto eziluhlaza eziphantsi kothuthu. Nangona kunjalo, ukuveliswa kwe-graphite electrode kufuna izixhobo ezingaphezulu, ukuhamba kwexesha elide kunye nobuchwepheshe obuntsonkothileyo, kwaye ukusetyenziswa kwamandla kwe-1 t graphite electrode yi-6000 ~ 7000 kW · H.
② I-anthracite esemgangathweni ophezulu okanye i-metallurgical coke isetyenziswa njengezinto eziluhlaza ukuvelisa i-carbon electrode. Ukuveliswa kwe-carbon electrode akudingi zixhobo ze-graphitization, kwaye ezinye iinkqubo zemveliso ziyafana nokuveliswa kwe-graphite electrode. Ukuqhuba kwe-carbon electrode kubi kakhulu kunokwe-graphite electrode. Ukumelana kwe-carbon electrode ngokubanzi kuphindwe kabini ukuya kathathu kunokwe-graphite electrode. Umxholo wothuthu uyahluka ngokomgangatho wezinto eziluhlaza, malunga ne-10%. Kodwa emva kokucoca okukhethekileyo, umxholo wothuthu we-anthracite unokwehliswa ube ngaphantsi kwe-5%. Umxholo wothuthu wemveliso unokwehliswa ube malunga ne-1.0% ukuba imveliso ifakelwe i-graphit. I-carbon electrode ingasetyenziselwa ukunyibilikisa intsimbi eqhelekileyo ye-EAF kunye ne-ferroalloy.
③ Kusetyenziswa i-graphite yendalo njengezinto eziluhlaza, i-electrode ye-graphite yendalo iveliswa. I-graphite yendalo ingasetyenziswa kuphela emva kokuba ikhethwe ngononophelo kwaye umxholo wayo wothuthu unciphile. Ukumelana kwe-electrode ye-graphite yendalo kuphindwe kabini kunokwe-electrode ye-graphitized. Kodwa amandla oomatshini aphantsi kakhulu, kulula ukuwaphula xa uyisebenzisa. Kwindawo enemveliso eninzi ye-graphite yendalo, i-electrode ye-graphite yendalo inokuveliswa ukuze inike i-EAF encinci ukuze inyibilikise intsimbi eqhelekileyo ye-EAF. Xa kusetyenziswa i-graphite yendalo ukuvelisa i-electrode eqhubayo, izixhobo kunye netekhnoloji kulula ukuyisombulula nokuyilawula.
④ I-electrode ye-Graphite isetyenziselwa ukuvelisa i-electrode ehlaziyiweyo (okanye i-electrode ephukileyo eyenziwe nge-graphitized) ngokutyumza nokusila ukungcola okanye iimveliso zenkunkuma. Umxholo wothuthu lwemveliso awuphezulu (malunga ne-1%), kwaye ukuhanjiswa kwayo kubi kunokwe-electrode eyenziwe nge-graphitized. Ukumelana kwayo kumalunga ne-1.5 amaxesha kunokwe-electrode eyenziwe nge-graphitized, kodwa isiphumo sayo sokusebenza singcono kunokwe-electrode yendalo ye-graphite. Nangona kulula ukuyiqonda kakuhle itekhnoloji kunye nezixhobo zokuvelisa i-electrode ehlaziyiweyo, umthombo wezinto eziluhlaza ze-graphitization ulinganiselwe, ngoko ke le ndlela ayisiyo indlela yophuhliso.
Ixesha lokuthumela: Juni-11-2021