Kune mhando dzakasiyana dzezvigadzirwa zve carbon ne graphite electrode, zvichienderana nekushandiswa kwazvo kwakasiyana, kune zvinodiwa zvekushandisa zvakakosha uye zviratidzo zvemhando. Pakufunga nezvemhando yezvinhu zvakagadziriswa zvinofanira kushandiswa kune chimwe chigadzirwa, tinofanira kutanga tadzidza kuti tingazadzisa sei zvinodiwa izvi zvakakosha uye zviratidzo zvemhando.
(1) Kusarudzwa kwezvinhu zvekushandisa pakugadzira graphite electrode zvinoshandiswa mukugadzira simbi dzemagetsi zvakaita seEAF.
Electrode yegrafiti inofambisa mhepo inoshandiswa mukugadzirwa kwesimbi dzemagetsi senge EAF inofanira kunge iine conductivity yakanaka, simba rakakodzera remakanika, inodzivirira kudzimwa nekudziya zvakanaka pakupisa kwakanyanya, inodzivirira ngura uye ine kusvibiswa kwakaderera.
① Ma electrode e graphite emhando yepamusoro anogadzirwa kubva ku petroleum coke, pitch coke nezvimwe zvinhu zvisina ash raw. Zvisinei, kugadzirwa kwe graphite electrode kunoda michina yakawanda, kufamba kwenguva refu uye tekinoroji yakaoma, uye simba rinoshandiswa ne 1 t graphite electrode i6000 ~ 7000 kW · H.
② Anthracite yepamusoro kana metallurgical coke inoshandiswa sezvinhu zvakabikwa kugadzira carbon electrode. Kugadzirwa kwecarbon electrode hakudi michina yegraphitization, uye mamwe maitiro ekugadzira akafanana nekugadzirwa kwegraphite electrode. Kufambiswa kwecarbon electrode kwakaipa zvikuru kupfuura kwegraphite electrode. Kudzivirira kwecarbon electrode kwakawanda kupfuura kwegraphite electrode. Kuwanda kwedota kunosiyana zvichienderana nemhando yezvinhu zvakabikwa, izvo zvinosvika 10%. Asi mushure mekucheneswa kwakakosha, huwandu hwedota hweanthracite hunogona kuderedzwa kusvika pasi pe5%. Hunhu hwedota hwechigadzirwa hunogona kuderedzwa kusvika pa1.0% kana chigadzirwa chikawedzerwa graphitization. Carbon electrode inogona kushandiswa kunyungudutsa common EAF steel neferroalloy.
③ Ichishandisa graphite yechisikigo sezvinhu zvisina kugadzirwa, electrode yegirafiti yechisikigo yakagadzirwa. Grafiti yechisikigo inogona kushandiswa chete mushure mekunge yasarudzwa zvakanaka uye dota rayo radzikira. Kudzivirira kwe electrode yegirafiti yechisikigo kwakapetwa kaviri kupfuura electrode yegirafiti. Asi simba remuchina rakaderera, zviri nyore kupwanya kana uchishandisa. Munzvimbo ine kugadzirwa kwakawanda kwegirafiti yechisikigo, electrode yegirafiti yechisikigo inogona kugadzirwa kuti ipe EAF diki yekunyungudutsa simbi yeEAF yakajairika. Pakushandisa girafiti yechisikigo kugadzira electrode inofambisa mhepo, michina netekinoroji zviri nyore kugadzirisa uye kugona.
④ Graphite electrode inoshandiswa kugadzira electrode yakagadziriswazve (kana graphitized broken electrode) kuburikidza nekupwanya nekukuya marara kana marara. Dota riri muchigadzirwa harisi rakawanda (anenge 1%), uye conductivity yaro yakaipa kupfuura ye graphitized electrode. Resistivity yaro inenge ka1.5 pane ye graphitized electrode, asi kushanda kwaro kuri nani pane ye natural graphite electrode. Kunyangwe zviri nyore kugona tekinoroji nemidziyo yekugadzira electrode yakagadziriswazve, graphitization inowanikwa muzvinhu zvitsva, saka nzira iyi haisi iyo nzira yekuvandudza.
Nguva yekutumira: Chikumi-11-2021