Qhov cuam tshuam ntawm Carbon Anode Zoo ntawm Aluminium Electrolysis Production

Raws li lub plawv ntawm aluminium electrolysis hlwb, qhov zoo thiab kev ua haujlwm ntawm carbon anodes muaj qhov cuam tshuam tseem ceeb ntawm seb puas yog aluminium electrolysis ntau lawm, nrog rau kev lag luam thiab kev ntsuas xws li kev ua haujlwm tam sim no, hluav taws xob siv hluav taws xob, thiab qib khoom.
1. Anode txhaum
70 feem pua ​​ntawm electrolytic cell tsis ua hauj lwm tshwm sim ntawm lub anode. Feem ntau anode faults (cov tsos mob) uas tshwm sim nyob rau hauv electrolytic hlwb muaj xws li lub zos overheating ntawm anode, uneven tam sim no faib, anode ntog tawm, anode "ntev pob", anode tawg txhaum, anode poob tawm, ib tug loj npaum li cas ntawm carbon residue poob rau hauv lub electrolyte, oxidation thiab combustion nyob ib ncig ntawm lub electrode, thiab anode tilting. Cov faults no feem ntau yog tshwm sim los ntawm cov teeb meem zoo nrog pre ci anodes thiab kev ua haujlwm tsis zoo electrolysis.
(1) Anode detachment (decoupling). Vim tsis zoo casting ntawm phosphorus npua hlau los yog qhov tsis xws luag nyob rau hauv lub anode carbon tais, lub pre ci anode tej zaum yuav muaj detachment ntawm anode carbon thaiv los ntawm cov hlau claw vim thermal expansion thaum siv. Thaum qhov tshwm sim no tshwm sim, nws yuav tsum tau tshem tawm cov pa roj carbon anode los ntawm electrolytic cell thiab hloov nws nrog ib tug tshiab pre ci anode. Thaum muaj cov kab nrib pleb loj hauv cov anode carbon thaiv, nws tseem yuav tawg thiab poob.
(2) Anode ntev pob. Vim qhov tsis sib xws ntawm qhov zoo ntawm lub pre ci anode, tus nqi ntawm electrolysis yog tsis synchronized thaum siv, ua rau lub zos protrusion nyob rau hauv qis nto ntawm carbon anode, uas yog hu ua lub anode ntev pob. Yog tias qhov tshwm sim no tshwm sim, lub anode yuav tsum tau muab tshem tawm, thiab tom qab smashing lub pob ntev nyob rau hauv lub anode carbon thaiv, lub anode tuaj yeem txuas ntxiv mus rau hauv lub tank.
(3) Anode tawg. Pre ci anodes tej zaum yuav muaj cov kab nrib pleb los yog longitudinal tawg vim molding los yog roasting vim li cas. Feem ntau hais lus, anode carbon blocks nrog cov kab nrib pleb pom ua ntej anode casting tsis cam khwb cia; Thaum pom cov kab nrib pleb ntawm lub anode thaum siv nyob rau hauv electrolytic cell, nws yog tsim nyog los tshem tawm thiab hloov nws nrog ib tug tshiab pre ci anode.
Qhov tshwm sim ntawm qhov ua txhaum cuam tshuam rau cov txheej txheem kev tsim khoom ntawm cov xov tooj ntawm tes electrolytic, ua rau muaj kev cuam tshuam ntawm electrolytic cell: voltage oscillation, voltage nce, aluminium dej dov, tsis crust ntawm electrolyte nto, ib nrab tsis-conductivity thiab tsis ua hauj lwm ntawm cov electrolytic cell, ua rau ib tug ntse txo nyob rau hauv tam sim no efficiency, ib tug ntse nce nyob rau hauv DC hwj chim noj thiab raw khoom noj, teeb meem nyob rau hauv electrolytic cell ua hauj lwm, ib tug txo nyob rau hauv aluminium qib, thiab txawm ua rau lub cell kaw.
2. cuam tshuam rau qhov kub thiab txias tam sim no
Cov "cov tsos mob hnyav" ntawm ntau yam anode tsis ua haujlwm hauv txhuas electrolysis hlwb cuam tshuam rau kev lag luam thiab kev ntsuas ntawm cov hlwb, raws li tau hais ua ntej. Cov kab mob ntev los ntawm qhov tsis zoo anode ua rau qhov kub thiab txias tsis sib xws tam sim no ntawm cov anode thiab electrolytic cell, uas tseem cuam tshuam rau kev lag luam thiab kev ntsuas ntawm aluminium electrolytic cell.
Qhov tam sim no dhau los ntawm txhuas electrolysis hlwb tuaj yeem ncav cuag kaum rau ntau pua kiloamperes, thiab kev hloov pauv hauv anode resistivity, anode conductive nrug, thiab cov qauv tsim muaj kev cuam tshuam rau hluav taws xob siv hluav taws xob. Lub tshav kub tsim los ntawm ohmic voltage poob ntawm lub anode yog sib npaug rau kev ua haujlwm tas li ntawm {{0}}KW hluav taws xob luav. Cov kev hloov pauv hauv kev ua haujlwm ntawm txhua qhov ntawm anode tsis tsuas yog cuam tshuam rau kev siv hluav taws xob, tab sis kuj cuam tshuam rau kev ua haujlwm kub ntawm anode thiab electrolytic cell, yog li muaj kev cuam tshuam loj heev rau kev ua haujlwm tam sim no. 75m0 ua. m txo mus rau 50 μΩ. m, tons ntawm txhuas plhaub txuag 500KW. h. Tsis tas li ntawd, cov pa roj carbon residue uas poob rau hauv electrolyte kuj cuam tshuam rau kev ua haujlwm tam sim no thiab kev siv hluav taws xob. Kev tshawb fawb tau pom tias cov ntsiab lus carbon residue ntawm 0.04 feem pua ​​​​ntawm cov electrolyte tuaj yeem txo qhov ua tau zoo tam sim no los ntawm 1 feem pua; Yog tias cov electrolyte muaj 1 feem pua ​​carbon residue, nws tuaj yeem txo cov conductivity los ntawm 11 feem pua.
Cov tshuaj tiv thaiv oxidation ntawm carbon anode thiab cua thiab carbon dioxide tso nyiaj rau ntau tshaj 20 feem pua ​​​​ntawm kev noj cov pa roj carbon anode. Cov tshuaj tiv thaiv no yog xaiv thiab zoo sib xws rau anode zoo, txheej txheem anode, electrolytic cell tsim, thiab electrolytic ua haujlwm.
Cov tshuaj tiv thaiv ntawm cov pa roj carbon thiab huab cua ua rau muaj kev phom sij loj rau txhuas electrolysis hlwb. Ua ntej, cov tshuaj tiv thaiv yog cov tshuaj tiv thaiv exothermic, uas ua rau qhov nce ntawm anode da dej kub; Qhov nce hauv qhov kub thiab txias yuav ua rau cov tshuaj tiv thaiv thaum lub sij hawm huab cua ncig, tsim lub voj voog vicious, uas tsis tsuas yog ua rau cov pa roj carbon ntau ntxiv tab sis tseem cuam tshuam rau kev ua haujlwm tam sim no; Qhov thib ob yog kev xaiv oxidation ntawm cov tshuaj tiv thaiv no, uas ua rau muaj ntau cov pa roj carbon slag poob, ntxiv kev puas tsuaj rau cov txheej txheem thiab kev lag luam ntawm cov xov tooj ntawm tes electrolytic.