Graphite electrode yog ib feem tseem ceeb ntawm EAFsteelmaking, tab sis nws tsuas yog tso nyiaj rau ib feem me me ntawm cov nqi tsim steel. Nws siv 2 kg ntawm graphite electrode los tsim ib tuj hlau.
Vim li cas thiaj siv graphite electrodes?
Graphite electrode yog lub ntsiab cua sov conductor fittings ntawm arc rauv. EAFs cov txheej txheem ntawm melting seem ntawm cov tsheb qub lossis cov khoom siv hauv tsev los tsim cov hlau tshiab.
Tus nqi tsim kho ntawm hluav taws xob arc rauv yog qis dua li ntawm cov tsoos blast furnace. Cov tsoos blast furnaces ua cov hlau los ntawm cov hlau ore thiab siv coking thee ua roj. Txawm li cas los xij, tus nqi ntawm steelmaking yog siab dua thiab ib puag ncig muaj kuab paug loj. Txawm li cas los xij, EAF siv cov hlau thiab hluav taws xob, uas tsis cuam tshuam rau ib puag ncig.
Lub graphite electrode yog siv los sib sau ua ke cov electrode thiab lub qhov cub npog rau hauv tag nrho, thiab cov graphite electrode tuaj yeem ua haujlwm nce thiab nqis. Tam sim no dhau los ntawm cov electrode, tsim ib qho kub-kub arc uas melts cov seem hlau. Cov electrodes tuaj yeem ncav cuag 800mm (2.5ft) inch thiab mus txog 2800mm (9ft) ntev. Qhov hnyav tshaj plaws yog ntau tshaj ob metric tons.
Graphite electrode noj
Nws yuav siv 2 kilograms (4.4 phaus) ntawm graphite electrodes los tsim ib tuj hlau.
Graphite electrode kub
Lub taub ntawm lub electrode yuav ncav cuag 3,000 degrees Celsius, ib nrab ntawm qhov kub ntawm lub hnub. Cov electrode yog ua los ntawm graphite, vim tias tsuas yog graphite tuaj yeem tiv taus qhov kub thiab txias.
Tom qab ntawd tig lub qhov cub rau ntawm nws sab thiab ncuav cov hlau molten rau hauv cov thoob loj. Lub ladle tom qab ntawd xa cov hlau molten mus rau steel zeb lub caster, uas hloov cov khoom siv rov ua dua tshiab rau hauv cov khoom tshiab.
Graphite electrode siv hluav taws xob
Cov txheej txheem yuav tsum muaj hluav taws xob txaus los txhawb lub nroog ntawm 100,000 tus neeg. Nyob rau hauv lub niaj hnub hluav taws xob arc rauv, txhua melting feem ntau yuav siv sij hawm 90 feeb thiab yuav ua tau 150 tons ntawm hlau, txaus ua 125 tsheb.
Cov khoom nyoos
Koob coke yog cov khoom siv tseem ceeb rau cov khoom siv hluav taws xob, uas siv sijhawm li peb mus rau rau lub hlis los tsim. Cov txheej txheem suav nrog roasting thiab reimpregnation kom tig lub coke rau hauv graphite, cov chaw tsim khoom hais tias.
Muaj cov roj av raws rab koob coke thiab thee raws li rab koob coke, ob qho tib si tuaj yeem siv los tsim graphite electrodes. "Cov tsiaj coke" yog cov khoom siv los ntawm cov txheej txheem roj av refining, thaum thee-rau-coke yog tsim los ntawm cov thee tar uas tshwm sim thaum lub sij hawm tsim cov coke.
Post lub sij hawm: Oct-30-2020