Izitayela Eziyinhloko Zemakethe
Ukwanda Kokukhiqizwa Kwensimbi Ngobuchwepheshe Be-Electric Arc Furnace
- Isithando sikagesi se-arc sithatha izingcezu zensimbi, i-DRI, i-HBI (insimbi eshisayo eboshwe nge-briquette, eyi-DRI ehlanganisiwe), noma insimbi yengulube ngesimo esiqinile, bese siyincibilikisa ukuze ikhiqize insimbi. Endleleni ye-EAF, ugesi unikeza amandla okuncibilikisa isitokwe sokudla.
- I-electrode ye-graphite isetshenziswa kakhulu enkambisweni yokwenza insimbi ye-arc furnace (EAF), ukuncibilikisa izingcezu zensimbi. Ama-electrode enziwe nge-graphite ngenxa yekhono layo lokubekezelela amazinga okushisa aphezulu. Ku-EAF, isihloko se-electrode singafinyelela ku-3,000º Fahrenheit, okuyisigamu sokushisa kobuso belanga. Ubukhulu bama-electrode buyahlukahluka kakhulu, kusukela ku-75mm ububanzi, kuya ku-750mm ubukhulu, kanye nobude obufika ku-2,800mm.
- Ukwenyuka kwentengo yama-electrode e-graphite kwenyuse izindleko zemishini yokugaya i-EAF. I-EAF evamile kulinganiselwa ukuthi isebenzisa cishe ama-electrode e-graphite angu-1.7 kg ukukhiqiza ithani elilodwa lensimbi.
- Ukwenyuka kwentengo kubangelwa ukuhlanganiswa kwemboni, emhlabeni jikelele, ukuvalwa kwamandla eShayina, kulandela imithethonqubo yezemvelo, kanye nokukhula kokukhiqizwa kwe-EAF, emhlabeni jikelele. Lokhu kulinganiselwa ukuthi kuzonyusa izindleko zokukhiqiza ze-EAF ngo-1-5%, kuye ngemikhuba yokuthenga yemishini, futhi lokhu kungenzeka kuvimbele ukukhiqizwa kwensimbi, njengoba kungekho okunye okungathatha indawo ye-graphite electrode emisebenzini ye-EAF.
- Ngaphezu kwalokho, izinqubomgomo zaseShayina zokubhekana nokungcoliswa komoya ziqiniswe yimikhawulo eqinile yokuphakelwa, hhayi nje kuphela emkhakheni wensimbi, kodwa futhi nakumalahle, i-zinc, kanye neminye imikhakha ekhiqiza ukungcola kwezinhlayiya. Ngenxa yalokho, ukukhiqizwa kwensimbi yaseShayina kwehle kakhulu eminyakeni edlule. Kodwa-ke, lokhu kulindeleke ukuthi kube nomthelela omuhle emananini ensimbi kanye nasezigayweni zensimbi esifundeni, ukuze kujabulele izinzuzo ezingcono.
- Zonke lezi zici ezibalwe 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 maqondana nokusetshenziswa kanye nomthamo wokukhiqiza wama-electrode e-graphite esimweni somhlaba wonke.
- Imithetho emisha yenqubomgomo eBeijing nakwezinye izifundazwe ezinkulu ezweni iphoqa abakhiqizi bensimbi ukuthi bavale umthamo wamathani ayizigidi ezingu-1.25 ensimbi ekhiqizwa ngendlela elimaza imvelo ukuze kukhiqizwe umthamo omusha wamathani ayizigidi ezingu-1 ensimbi. Lezo zinqubomgomo zisekele ukushintsha kwabakhiqizi besuka ezindleleni ezivamile zokukhiqiza insimbi baye endleleni ye-EAF.
- Ukukhiqizwa okwandayo kwezimoto, kanye nomkhakha wokwakha izindlu okhulayo, kulindeleke ukuthi kusekele isidingo sasekhaya sama-alloy angenawo ugesi kanye nensimbi nensimbi, okuyisici esihle sokukhula kwesidingo se-graphite electrode eminyakeni ezayo.
- Amandla okukhiqiza amanje ama-electrode e-UHP graphite eShayina angaba yi-metric ton eyizinkulungwane ezingama-50 ngonyaka. Isidingo sama-electrode e-UHP eShayina kulindeleke ukuthi sibone ukukhula okukhulu esikhathini eside futhi amandla engeziwe angaphezu kwama-metric ton ezinkulungwane ezingama-50 ama-electrode e-UHP graphite kulindeleke ukuthi abonakale ezigabeni zakamuva zesikhathi sokubikezela.
- Zonke izici ezishiwo ngenhla, kulindeleke ukuthi zikhulise isidingo se-graphite electrode esifundeni ngesikhathi sokubikezela.
Isikhathi sokuthunyelwe: Okthoba-14-2020