Nrov Science ntawm kev noj txheej txheej mechanism ntawm graphite electrodes

Kev noj haus ntawm graphite hluav taws xob hauv hluav taws xob rauv stat steelmaking (xws li muaj cov tshuab cua sov, txawm tias nws yog ntau lawm lawm, lwm yam) thiab cov haujlwm steelmaking (xws li cov hom hlau smelting hlau, lub sijhawm oxygen lub sijhawm, cub hluav taws xob daws, thiab lwm yam). Ntawm no peb tsuas yog tham txog kev tau txais kev noj ntawm graphite electrodes lawv tus kheej, thiab nws cov txheej txheem kev siv nyiaj tau muaj cov hauv qab no:
1. Xaus Noj: Xws li cov sublimation ntawm graphite cov khoom siv los ntawm qhov kub ntawm lub elc thiab poob ntawm electrode kawg thiab molten hlau thiab swb. Qhov kev kub siab tshaj plaws ntawm qhov kawg feem ntau yog nyob ntawm qhov ntev tam sim no dhau los ntawm cov hluav taws xob, thiab qhov thib ob ntawm cov cheeb tsam ntawm electrode tom qab oxidation. Kev noj khoom xaus tseem cuam tshuam txog seb cov electrode nyob rau hauv cov hlau nplaum kom ua kom cov roj carbon.
2. Sab Oxidation: Cov tshuaj lom neeg muaj pes tsawg leeg ntawm electrode yog carbon. Cov pa roj carbon yuav yauv tawm cov pa oxidation nrog huab cua, dej vapor, thiab carbon dioxide nyob rau qee yam. Qhov ntau ntawm cov sab nrauv sab oxidation yog cuam tshuam nrog cov lej oxidation thiab thaj chaw sib kis. Nyob rau hauv ib txwm muaj xwm txheej, tus nqi ntawm electrode sab oxidation account rau txog li 50% ntawm tag nrho cov electrode. Nyob rau hauv xyoo tsis ntev los no, nyob rau hauv thiaj li yuav nce qhov ceev ntawm hluav taws xob rauv smas, qhov zaus ntawm cov pa oxygen ua haujlwm tau nce, ua rau muaj cov roj ntsha tsis tau. Nquag saib cov liab ntawm lub pob zeb electrode thiab tus taper ntawm qis kawg thaum kawg thaum lub sij hawm steelmaking yog ib txoj kev sib txuam yog qhov muaj peev xwm los ntsuas hluav taws xob lub peev xwm.
3. Cov hluav taws xob poob qis: Thaum ntu hluav taws xob txuas ntxiv mus rau qhov sib txuas lossis cov hluav taws xob me me) yog ib qho chaw nyob sab saud, piv txwv vim yog oxidation thiab thining ntawm lub cev lossis kev nkag ntawm cov kab nrib pleb Cov. Qhov loj me ntawm cov seem poob yog cuam tshuam nrog cov qauv ntawm cov qauv hauv elegrode, thiab kev co thiab cuam tshuam ntawm cov hluav taws xob.
4. Tom qab peeling thiab ntog: Qhov tshwm sim ntawm kev txias txias thiab cua sov thaum lub sijhawm smelting, thiab cov thermal thermal kev co ntawm cov electrode nws tus kheej.
5. Electrode breakage: suav nrog electrode pob tw breakage thiab sib koom ua ke. Kev tawg pob tsuas muaj feem xyuam rau kev ua kom zoo thiab ua kom muaj kev sib koom tes ntawm cov graphite electrode thiab sib koom tes nws tus kheej, nrog rau kev ua haujlwm steelmaking. Qhov laj thawj yog feem ntau ua kom pom tseeb ntawm kev sib cav ntawm cov hlau mills thiab electrode manufacturers.