Ayini ama-electrode e-graphite kanye ne-needle coke?

Ama-electrode e-graphite ayisici esiyinhloko sokushisa esisetshenziswa esithandweni sikagesi se-arc, inqubo yokwenza insimbi lapho izinsalela zezimoto ezindala noma izinto zikagesi zincibilikiswa khona ukuze kukhiqizwe insimbi entsha.

Izitofu zikagesi ze-arc zishibhile ukuzakha kunezitofu zendabuko zokuqhuma, ezenza insimbi nge-iron ore futhi ziphehlwa ngamalahle okupheka. Kodwa izindleko zokwenza insimbi ziphakeme ngoba zisebenzisa izingcezu zensimbi futhi zisebenza ngogesi.

Ama-electrode ayingxenye yesivalo sesithando futhi ahlanganiswa abe amakholomu. Ugesi ube usudlula kuma-electrode, wakhe i-arc yokushisa okukhulu encibilikisa insimbi elahliwe. Ama-electrode ayahlukahluka ngobukhulu kodwa angaba amamitha angu-0.75 (amamitha angu-2 nesigamu) ububanzi futhi abe amamitha angu-2.8 (amamitha angu-9) ubude. Elikhulu kunawo wonke linesisindo esingaphezu kwamathani amabili.

Kuthatha ama-electrode e-graphite angafika ku-3 kg (6.6 lb) ukukhiqiza ithani elilodwa lensimbi.

Isihloko se-electrode sizofinyelela kuma-degree Celsius angu-3,000, okuyisigamu sokushisa kobuso belanga. Ama-electrode enziwe nge-graphite ngoba yi-graphite kuphela engamelana nokushisa okukhulu kangaka.

Isithando somlilo sibe sesibekwe eceleni ukuze sithulule insimbi encibilikisiwe emabhakedeni amakhulu abizwa ngokuthi ama-ladle. Ama-ladle abe esethwala insimbi encibilikisiwe aye e-caster ye-steel mill, eyenza imikhiqizo emisha ngezinsalela ezisetshenzisiwe.

Ugesi odingekayo kule nqubo wanele ukunika amandla idolobha elinabantu abayi-100,000. Ukuncibilika ngakunye esithandweni sikagesi sesimanje ngokuvamile kuthatha imizuzu engaba ngu-90 futhi kwenza amathani ayi-150 ensimbi, okwanele izimoto ezingaba ngu-125.

I-Needle coke iyinto eluhlaza esetshenziswa kakhulu kuma-electrode abakhiqizi abathi kungathatha izinyanga eziyisithupha ukwenziwa ngezinqubo ezihlanganisa ukubhaka nokubhaka kabusha ukuguqula i-coke ibe yi-graphite.

Kukhona i-needle coke esekelwe ku-petroleum kanye ne-needle coke esekelwe kumalahle, futhi noma yikuphi kungasetshenziswa ukukhiqiza ama-electrode e-graphite. I-'Pet coke' ingumkhiqizo ongaphansi kwenqubo yokucwenga uwoyela, kuyilapho i-needle coke esekelwe kumalahle yenziwe nge-coal tar evela ngesikhathi sokukhiqizwa kwe-coke.

Ngezansi abakhiqizi abaphezulu kakhulu emhlabeni bama-electrode e-graphite ahlelwe ngokwezinga lokukhiqiza ngo-2016:

Igama Lenkampani Indlunkulu Amasheya Amandla

(,000 amathani) I-YTD %

I-GrafTech US 191 Yangasese

Okwamazwe ngamazwe

I-Fangda Carbon China 165 +264

*I-SGL Carbon eJalimane 150 +64

*Showa Denko Japan 139 +98

KK

I-Graphite India India 98 +416

Ltd

I-HEG India 80 +562

I-Tokai Carbon Japan 64 +137

I-Co Ltd

I-Nippon Carbon Japan 30 +84

I-Co Ltd

I-SEC Carbon Japan 30 +98

*I-SGL Carbon ngo-Okthoba 2016 yathi izothengisa ibhizinisi layo le-graphite electrode kuShowa Denko.

Imithombo: GrafTech International, UK Steel, Tokai Carbon Co Ltd