Cov hluav taws xob graphite yog cov khoom siv cua sov tseem ceeb uas siv rau hauv lub cub tawg hluav taws xob, uas yog cov txheej txheem ua hlau uas cov khoom seem ntawm cov tsheb qub lossis cov khoom siv hluav taws xob raug yaj los tsim cov hlau tshiab.
Cov cub hluav taws xob arc pheej yig dua li cov cub tawg ib txwm muaj, uas ua hlau los ntawm cov hlau ore thiab siv roj los ntawm coking thee. Tab sis tus nqi ntawm kev ua hlau yog siab dua vim lawv siv cov hlau seem thiab siv hluav taws xob.
Cov electrodes yog ib feem ntawm lub hau cub tawg thiab tau muab sib dhos ua ke ua ke. Tom qab ntawd hluav taws xob hla dhau cov electrodes, tsim ib lub voj voog ntawm cua sov uas yaj cov hlau seem. Cov electrodes sib txawv ntau qhov loj me tab sis tuaj yeem muaj txog li 0.75 meters (2 thiab ib nrab feet) hauv txoj kab uas hla thiab ntev txog li 2.8 meters (9 feet). Qhov loj tshaj plaws hnyav ntau dua ob metric tons.
Nws siv txog li 3 kg (6.6 lb) ntawm cov electrodes graphite los tsim ib tonne ntawm cov hlau.
Lub hau ntawm lub electrode yuav kub txog 3,000 degrees Celsius, ib nrab ntawm qhov kub ntawm lub hnub. Cov electrodes yog ua los ntawm graphite vim tsuas yog graphite thiaj li tiv taus qhov kub heev no.
Tom qab ntawd lub cub tawg raug tig rau ib sab kom nchuav cov hlau uas yaj rau hauv cov thoob loj hu ua ladles. Cov ladles mam li nqa cov hlau uas yaj mus rau lub tshuab hlau lub caster, uas ua cov khoom tshiab los ntawm cov khoom seem rov ua dua tshiab.
Cov hluav taws xob uas xav tau rau cov txheej txheem no txaus rau lub nroog uas muaj cov pej xeem 100,000 tus. Txhua zaus yaj hauv lub cub hluav taws xob niaj hnub no feem ntau siv sijhawm li 90 feeb thiab ua tau 150 tonnes ntawm cov hlau, txaus rau li 125 lub tsheb.
Cov koob coke yog cov khoom siv tseem ceeb uas siv rau hauv cov electrodes uas cov neeg tsim khoom hais tias tuaj yeem siv sijhawm txog rau lub hlis los ua nrog cov txheej txheem suav nrog kev ci thiab rov ci dua kom hloov cov coke mus ua graphite.
Muaj cov roj av uas siv roj av thiab cov thee uas siv thee, thiab ob qho tib si siv tau los tsim cov graphite electrodes. 'Pet coke' yog cov khoom seem ntawm cov txheej txheem ua roj, thaum cov thee uas siv thee yog ua los ntawm cov thee tar uas tshwm sim thaum lub sijhawm tsim coke.
Hauv qab no yog cov tuam txhab tsim cov graphite electrodes saum toj kawg nkaus hauv ntiaj teb uas tau muab faib los ntawm lub peev xwm tsim khoom hauv xyoo 2016:
Lub Npe Tuam Txhab Chaw Ua Haujlwm Muaj Peev Xwm Feem Pua
(,000 tonnes) YTD %
GrafTech US 191 Private
Thoob ntiaj teb
Fangda Carbon Tuam Tshoj 165 +264
*SGL Carbon Lub Tebchaws Yelemees 150 +64
*Showa Denko Nyiv 139 +98
KK
Graphite Is Nrias teb Is Nrias teb 98 +416
Ltd.
HEG Is Nrias teb 80 +562
Tokai Carbon Nyiv Pooj 64 +137
Tuam Txhab Ltd.
Nippon Carbon Nyiv Pooj 30 +84
Tuam Txhab Ltd.
SEC Carbon Nyiv 30 +98
*SGL Carbon thaum Lub Kaum Hli Ntuj xyoo 2016 tau hais tias nws yuav muag nws txoj kev lag luam graphite electrode rau Showa Denko.
Cov Khoom Siv: GrafTech International, UK Steel, Tokai Carbon Co Ltd
Lub sijhawm tshaj tawm: Tsib Hlis-21-2021