Ukwethulwa kwe-Graphite electrode

I-electrode ye-graphiteisetshenziswa kakhulu ekwenzeni insimbi ye-EAF. Ukwenza insimbi yesithando somlilo ukusebenzisa i-graphite electrode ukwethula okwamanje esithandweni. Amandla amanje anamandla akhiqiza ukukhishwa kwe-arc ngegesi ekugcineni okuphansi kwe-electrode, futhi ukushisa okukhiqizwa yi-arc kusetshenziselwa ukuncibilikisa. Ngokusho komthamo wesithando somlilo, ama-electrode e-graphite anama-diameter ahlukene asetshenziswa. Ukuze wenze ama-electrode asetshenziswe ngokuqhubekayo, ama-electrode axhunywe ngokuhlanganyela okuhlanganisiwe kwe-electrode. Ii-graphite electrodeama-akhawunti e-steelmaking angu-70-80% yenani eliphelele le-graphite electrode. 2. Isetshenziswa esithandweni samandla ashisayo emayini. Isici saso ukuthi ingxenye engezansi ye-electrode conductive ingcwatshwe ekukhokhiseni. Ngakho-ke, ngaphezu kokushisa okukhiqizwa yi-arc phakathi kwepuleti kagesi kanye nokushaja, ukushisa nakho kukhiqizwa ukumelana nokushaja lapho okwamanje kudlula ukushaja. I-3, Isithando somlilo se-Graphitization, isithando somlilo esincibilikisa ingilazi nesithando somlilo sikagesi sokukhiqiza imikhiqizo ye-graphite yizo zonke iziko lokumelana. Izinto ezisesithandweni azigcini nje ukumelana nokushisa, kodwa futhi nokushisa into. Ngokuvamile, i-electrode ye-graphite conductive ifakwa odongeni lwekhanda lomlilo ekupheleni kweziko, ngakho-ke i-electrode conductive ayidliwa ngokuqhubekayo.

Izinkambu zohlelo lokusebenza:

(1) Isetshenziswa esithandweni sikagesi se-arc steelmaking, umsebenzisi omkhulu wasoi-graphite electrode. E-China, ukukhiqizwa kwensimbi ye-EAF kubala cishe u-18% wensimbi engahluziwe, kanti i-electrode ye-graphite yokwenza insimbi ibalelwa ku-70% ~ 80% wesamba esisetshenziswa i-graphite electrode. Ukwenza insimbi yesithando somlilo ukusebenzisa i-electrode yegraphite ukwethula okwamanje esithandweni, nokusebenzisa umthombo wokushisa ophezulu okhiqizwe i-arc phakathi kokuphela kwe-electrode kanye nokushaja ukuze kuncibilike.

2) Isetshenziswa esithandweni somlilo esingaphansi kwamanzi; isithando somlilo se-arc esingaphansi kwamanzi sisetshenziselwa ikakhulukazi ukukhiqiza i-silicon yezimboni kanye ne-phosphorus ephuzi, njll. ibonakala ngokuthi ingxenye engezansi ye-electrode conductive ingcwatshwe ngokushaja, yenza i-arc kungqimba lokushaja, futhi ishise ishaja ngokusebenzisa amandla okushisa. okukhiqizwa ukumelana nokukhokhiswa ngokwayo. Isithando somlilo se-arc esingaphansi kwamanzi esinokuminyana okuphezulu kwamanje sidinga i-electrode yegraphite, isibonelo, cishe u-100kg we-graphite electrode edingekayo kuwo wonke ukukhiqizwa kwe-silicon eyi-1t, futhi cishe u-100kg we-graphite electrode edingekayo kuwo wonke ukukhiqizwa kwe-silicon eyi-1 Kudingeka cishe ama-40 kg we-electrode yegraphite ukuze aphuzi. i-phosphorus.

(3) Isetshenziselwa ukushisa komlilo; isithando somlilo se-graphitization sokukhiqiza imikhiqizo ye-graphite, isithando somlilo sengilazi encibilikayo nesithando somlilo sikagesi sokukhiqiza i-silicon carbide konke kungokwesithando somlilo. Izinto ezisesithandweni kokubili ukumelana nokushisa kanye nento evuthayo. Ngokuvamile, i-electrode ye-graphite conductive ifakwe odongeni lwekhanda lomlilo ekupheleni kwesithando somlilo, futhi i-electrode ye-graphite esetshenziswe lapha ayidli ngokuqhubekayo.

(4) Isetshenziselwa ukulungisa okumise okukhethekileimikhiqizo ye-graphite; i-electrode ye-graphite iphinde isetshenziselwe ukucubungula imikhiqizo ehlukahlukene ye-graphite emise okukhethekile efana ne-crucible, isikhunta, isitsha sesikebhe kanye nomzimba wokufudumeza. Isibonelo, embonini yengilazi ye-quartz, i-10t graphite electrode engenalutho iyadingeka kuwo wonke amashubhu okuncibilika kagesi we-1t; I-100kg ye-graphite electrode engenalutho iyadingeka kuso sonke isitini se-quartz esingu-1.