Ndezvipi zvinodiwa zvemhando yegraphite electrode yeDC arc furnace?

Iyo graphite electrode inoshandiswa muDC arc furnace haina ganda mhedzisiro kana yazvino ichipfuura, uye yazvino inogoverwa zvakaenzana pane yazvino muchinjikwa chikamu. Kuenzaniswa ne AC arc furnace, iyo density iripo kuburikidza ne electrode inogona kuwedzerwa zvakakodzera. Kune emagetsi emagetsi epamusoro-soro ane simba rakafanana rekupinza, DC arc furnaces inoshandisa electrode imwe chete, uye dhayamita yeelectrode yakakura, senge 100t AC electric furnaces inoshandisa maelectrodes ane dhayamita ye600mm, uye 100t DC arc furnaces inoshandisa. maelectrodes ane dhayamita 700mm, uye makuru eDC arc furnaces anotoda maelectrodes ane dhayamita ye750-800mm. Mutoro wazvino urikukwirawo uchikwira, saka zvinotevera zvinodiwa zvinoiswa kumberi kwemhando yegraphite electrode:

(1) Muyero wakanaka wemuviri we electrode uye mubatanidzwa unofanirwa kuve diki, senge resistivity yemuviri we electrode inoderedzwa kusvika pa5.μΩ·m, uye resistivity yejoinhi yakaderedzwa kusvika inenge 4μΩ·m. Kuti uderedze resistivity yegraphite electrode, mukuwedzera pakusarudza yakakwirira-mhando tsono coke mbishi zvinhu, tembiricha yegraphitization inofanira kuwedzerwa zvinoenderana.

(2) Iyo mutsara yekuwedzera coefficient yemuviri we electrode uye chibatanidzwa chinofanira kunge chakaderera, uye axial uye mutsara mutsara wekuwedzera coefficient ye electrode body inofanirwa kuchengetedza hukama hwakakodzera hunoenderana neinowirirana thermal yekuwedzera coefficient yejoini zvinoenderana nehukuru hwe. kupfuura ikozvino density.

(3) Thermal conductivity ye electrode inofanira kuva yakakwirira. Iyo yakakwira yekupisa conductivity inogona kuita kupisa kwekushisa mu graphite electrode nekukurumidza, uye radial tembiricha gradient inodzikiswa, nekudaro ichidzikisa kupisa kwekushushikana.

(4) ine simba remagetsi rakakwana, senge simba rekukotama remuviri we electrode rinosvika pa12MPa, uye kusimba kwejoinhi kwakakwira zvakanyanya kupfuura muviri we electrode, unofanirwa kunge uchikwira ka1. Kujoinhi, simba rekusimba rinofanirwa kuyerwa, uye torque yakayerwa inofanirwa kuiswa mushure mekubatanidza kwe electrode, kuitira kuti migumo miviri ye electrode ichengetedze imwe yakasimba.

(5) Iyo porosity ye electrode inofanira kunge yakaderera kuderedza kushandiswa kweoxidation ye electrode pamusoro.