Ukuqaliswa kweGraphite electrode

I-electrode yegraphiteisetyenziswa ikakhulu kwi-EAF steelmaking. Isithando somlilo sombane kukusebenzisa i-electrode yegraphite ukwazisa okwangoku kwiziko. Umbane onamandla uvelisa ukukhutshwa kwe-arc ngegesi kwisiphelo esisezantsi se-electrode, kwaye ubushushu obuveliswa yi-arc busetyenziselwa ukunyibilikisa. Ngokutsho komthamo wesithando sombane, i-electrode yegraphite ene-diameter eyahlukeneyo isetyenziswa. Ukuze wenze i-electrodes isetyenziswe ngokuqhubekayo, i-electrodes idibaniswe yi-electrode threaded joint. Ii-electrode yegraphitekwi-steelmaking akhawunti kwi-70-80% yexabiso elipheleleyo le-graphite electrode. I-2, isetyenziswa kwiziko lamandla obushushu bomgodi. Uphawu lwayo kukuba inxalenye engezantsi ye-electrode conductive ingcwatywe kwintlawulo. Ngoko ke, ngaphezu kokushisa okwenziwa yi-arc phakathi kwepleyiti yombane kunye nentlawulo, ukushisa kuphinda kuveliswe ukuchaswa kwentlawulo xa ikhoyo ngoku idlula kwintlawulo. 3, Graphitization eziko, iglasi ukunyibilika eziko kunye neziko lombane ukuvelisa iimveliso graphite zonke eziko ukumelana. Izinto ezikwisithando azikho nje ukuchasana nokufudumala, kodwa kunye nokufudumeza into. Ngokuqhelekileyo, i-electrode ye-graphite eqhubayo ifakwe eludongeni lwentloko yesithando somlilo ekupheleni kweziko, ngoko ke i-electrode conductive ayidliwe ngokuqhubekayo.

Imimandla yesicelo:

(1) Isetyenziswa kwiziko lokwenza intsimbi yombane, engumsebenzisi omkhului-electrode yegraphite. E-China, imveliso yentsimbi ye-EAF ibalelwa kwi-18% yemveliso yentsimbi ekrwada, kwaye i-electrode yegraphite yokwenza i-akhawunti yentsimbi ithatha i-70% ~ 80% yosetyenziso lulonke lwe-electrode yegraphite. I-steelmaking yesithando sombane kukusebenzisa i-electrode yegraphite ukwazisa okwangoku kwiziko, kwaye usebenzise umthombo wobushushu obuphezulu owenziwe yi-arc phakathi kokuphela kwe-electrode kunye nentlawulo yokunyibilika.

2) Isetyenziswe kwisithando somlilo se-arc; i-arc eziko elintywilayo lisetyenziselwa ukuvelisa i-silicon yezoshishino kunye ne-phosphorus ephuzi, njl. eveliswa kukuchaswa kwentlawulo ngokwayo. Iziko le-arc elintywiliselweyo elinoxinzelelo oluphezulu lwangoku lifuna i-electrode yegraphite, umzekelo, malunga ne-100kg ye-electrode yegraphite efunekayo kwi-1t nganye yemveliso yesilicon, kwaye malunga ne-100kg ye-electrode yegraphite iyafuneka kwi-1t yemveliso yesilicon nganye Malunga ne-40 kg ye-electrode yegraphite efunekayo ukuze ityheli. phosphorus.

(3) Isetyenziselwa iziko lokumelana; Iziko legraphitization lokuvelisa iimveliso zegraphite, iziko lokunyibilikisa iglasi kunye neziko lombane lokuvelisa isilicon carbide zonke zezeziko lokumelana. Izinto eziphathekayo kwisithando somlilo zimbini ukuchasana nokufudumeza kunye nento eshushu. Ngokuqhelekileyo, i-electrode ye-graphite conductive ifakwe eludongeni lwentloko yesithando somlilo ekupheleni kwesithando somlilo, kwaye i-electrode yegraphite esetyenziswe apha ayidli ngokuqhubekayo.

(4) Isetyenziselwa ukulungiselela imilo ekhethekileyoiimveliso zegraphite; I-electrode yegraphite engenanto ikwasetyenziselwa ukusetyenzwa kweemveliso ezahlukeneyo zegraphite ezinokwakheka okukhethekileyo okunje ngecrucible, ukungunda, isitya sesikhephe kunye nomzimba wokufudumeza. Ngokomzekelo, kwimboni yeglasi ye-quartz, i-10t graphite electrode blank iyadingeka kwi-tube yonke ye-1t yokunyibilika kombane; I-100kg ye-graphite electrode engenanto iyafuneka kwisitena se-1t ye-quartz nganye.