Amathrendi Abalulekile Emakethe
Ukwandisa Ukukhiqizwa Kwensimbi Nge-Electric Arc Furnace Technology
- Isithando somlilo se-arc sikagesi sithatha izinsalela zensimbi, i-DRI, i-HBI (i-iron eshisayo enama-briquetted, ehlanganiswe i-DRI), noma insimbi yengulube esesimweni esiqinile, futhi izincibilikise ukuze kukhiqizwe insimbi.Emzileni we-EAF, ugesi unikeza amandla okuncibilikisa isitoko.
- I-electrode ye-graphite isetshenziswa ngokuyinhloko kunqubo yokwenza insimbi ye-arc kagesi (EAF), ukuncibilikisa izinsalela zensimbi.Ama-electrode enziwe nge-graphite ngenxa yekhono lawo lokumelana namazinga okushisa aphezulu.Ku-EAF, ichopho le-electrode lingafinyelela ku-3,000º Fahrenheit, okuwuhhafu wezinga lokushisa lobuso belanga.Ubukhulu bama-electrode buyahlukahluka kakhulu, ukusuka ku-75mm ububanzi, kuya kubukhulu obungama-750mm ububanzi, futhi bufika ku-2,800mm ubude.
- Ukukhuphuka kwentengo yama-electrode e-graphite kwenyuse izindleko ze-EAF.Isilinganiso se-EAF silinganiselwa ukuthi sisebenzisa cishe i-1.7 kg yama-electrode e-graphite ukukhiqiza ithani elilodwa le-metric yensimbi.
- Ukwenyuka kwentengo kudalwe ukuqiniswa kwezimboni, emhlabeni jikelele, ukuvalwa kwamandla e-China, kulandela ukulawulwa kwemvelo, kanye nokukhula kokukhiqizwa kwe-EAF, emhlabeni jikelele.Lokhu kulinganiselwa ukuthi kuzonyusa izindleko zokukhiqiza ze-EAF ngo-1-5%, kuye ngezinqubo zokuthengwa kwemishini yokugaya, futhi lokhu kungase kukhawulele ukukhiqizwa kwensimbi, njengoba kungekho okungathatha indawo ye-graphite electrode ekusebenzeni kwe-EAF.
- Ukwengeza, izinqubomgomo zaseShayina zokubhekana nokungcoliswa komoya ziqiniswe izindlela eziqinile zokuhlinzeka, hhayi kuphela imboni yensimbi, kodwa namalahle, i-zinc, neminye imikhakha edala ukungcoliswa kwezinhlayiyana.Ngenxa yalokho, ukukhiqizwa kwensimbi yaseShayina kwehle kakhulu eminyakeni edlule.Kodwa-ke, lokhu kulindeleke ukuthi kube nomthelela omuhle emananini ensimbi nasezigayweni zensimbi esifundeni, ukuze ujabulele amamajini angcono.
- Zonke lezi zinto ezishiwo ngenhla, kulindeleke ukuthi ziqhube imakethe ye-graphite electrode ngesikhathi sokubikezela.
Isifunda sase-Asia-Pacific sizobusa Imakethe
- Isifunda sase-Asia-Pacific siphethe isabelo semakethe yomhlaba wonke.I-China ithatha isabelo esikhulu kunazo zonke mayelana nokusetshenziswa namandla okukhiqiza ama-graphite electrode esimweni somhlaba wonke.
- Iziyalezo zenqubomgomo entsha e-Beijing nakwezinye izifundazwe ezinkulu zezwe ziphoqa abakhiqizi bensimbi ukuthi bavale umthamo wensimbi ongamathani ayizigidi ezi-1.25 akhiqizwa ngomzila olimaza imvelo ukuze kukhiqizwe umthamo omusha wensimbi eyi-1 million ton.Izinqubomgomo ezinjalo ziye zasekela ukushintshwa kwabakhiqizi besuka ezindleleni ezivamile zokukhiqiza insimbi baye endleleni ye-EAF.
- Ukukhiqizwa okwandayo kwezimoto, kanye nokwanda kwemboni yokwakha yezindawo zokuhlala, kulindeleke ukuthi kusekele isidingo sasekhaya sama-alloys angeyona insimbi nensimbi nensimbi, okuyisici esihle ekukhuleni kwesidingo se-graphite electrode eminyakeni ezayo. .
- Amandla amanje okukhiqiza ama-electrode e-UHP e-graphite e-China alinganiselwa ku-50 thousand metric ton ngonyaka.Isidingo sama-electrode e-UHP eChina kulindeleke ukuthi sibone ukukhula okukhulu esikhathini eside futhi umthamo owengeziwe wamathani angaphezu kwezinkulungwane ezingama-50 we-UHP graphite electrode kulindeleke ukuthi ufakaze ngawo izigaba zakamuva zesikhathi sokubikezela.
- Zonke lezi zinto ezishiwo ngenhla, kulindeleke ukuthi zikhulise isidingo se-graphite electrode esifundeni ngesikhathi sokubikezela.
Isikhathi sokuthumela: Oct-14-2020