Iindlela eziphambili zeMarike
Ukwanda kweMveliso yeNsimbi ngeTekhnoloji yeSithando soMbane se-Electric Arc
- Isithando somlilo se-arc sombane sithatha i-steel scrap, i-DRI, i-HBI (intsimbi eshushu eqhotsiweyo, eyi-DRI exineneyo), okanye i-pig iron kwimo eqinileyo, size siyinyibilikise ukuze ivelise intsimbi. Kwindlela ye-EAF, umbane unika amandla okunyibilikisa i-feedstock.
- I-electrode yegrafiti isetyenziswa kakhulu kwinkqubo yokwenza intsimbi ye-electric arc furnace (EAF), ukunyibilikisa inkunkuma yentsimbi. Ii-electrode zenziwe ngegrafiti ngenxa yokukwazi kwayo ukumelana namaqondo obushushu aphezulu. Kwi-EAF, incam ye-electrode ingafikelela kwi-3,000º Fahrenheit, nto leyo eyisiqingatha sobushushu bomphezulu welanga. Ubungakanani bee-electrode buyahluka kakhulu, ukusuka kwi-75mm ububanzi, ukuya kwi-750mm ububanzi, kunye nobude obufikelela kwi-2,800mm.
- Ukunyuka kwamaxabiso ee-electrode zegrafiti kunyuse iindleko zee-EAF mills. I-EAF eqhelekileyo iqikelelwa ukuba isebenzisa malunga ne-1.7 kg yee-electrode zegrafiti ukuvelisa itoni enye yentsimbi.
- Ukunyuka kwamaxabiso kubangelwe kukuhlanganiswa kwemizi-mveliso, kwihlabathi liphela, ukuvalwa kwamandla eTshayina, emva kokulawulwa kokusingqongileyo, kunye nokukhula kwemveliso ye-EAF, kwihlabathi liphela. Oku kuqikelelwa ukuba kuya kunyusa iindleko zemveliso ye-EAF nge-1-5%, kuxhomekeke kwiindlela zokuthenga zefektri, kwaye oku kunokwenzeka ukuba kuthintele imveliso yentsimbi, njengoko kungekho nto inokuthatha indawo ye-graphite electrode kwimisebenzi ye-EAF.
- Ukongeza, imigaqo-nkqubo yaseTshayina yokujongana nongcoliseko lomoya iqiniswe yimida eqinileyo yokubonelela, kungekuphela nje kwicandelo lesinyithi, kodwa nakwicandelo lamalahle, i-zinc, kunye namanye amacandelo avelisa ungcoliseko lwamasuntswana. Ngenxa yoko, imveliso yesinyithi yaseTshayina yehle kakhulu kwiminyaka edlulileyo. Nangona kunjalo, oku kulindeleke ukuba kube nefuthe elihle kumaxabiso esinyithi kunye neefektri zesinyithi kulo mmandla, ukuze zifumane inzuzo engcono.
- Zonke ezi zinto zikhankanyiweyo apha ngasentla, kulindeleke ukuba ziqhubele phambili imarike ye-graphite electrode ngexesha lexesha eliqikelelweyo.
Ummandla weAsia-Pacific uza kulawula iMarike
- Ummandla we-Asia-Pacific ulawula isabelo semarike yehlabathi. I-China ithatha isabelo esikhulu ngokwendlela yokusebenzisa kunye nomthamo wemveliso yee-electrodes ze-graphite kwimeko yehlabathi.
- Imiyalelo emitsha yomgaqo-nkqubo eBeijing nakwamanye amaphondo amakhulu kweli lizwe inyanzela abavelisi bentsimbi ukuba bavale umthamo weetoni zentsimbi ezizizigidi ezili-1.25 eziveliswa ngendlela enobungozi kokusingqongileyo ukuze kuveliswe umthamo omtsha weetoni zentsimbi ezizizigidi ezili-1. Ezi nkqubo ziye zaxhasa utshintsho lwabavelisi kwiindlela zemveli zokuvelisa intsimbi ukuya kwindlela ye-EAF.
- Ukwanda kwemveliso yezithuthi, kunye noshishino lokwakha izindlu olukhulayo, kulindeleke ukuba luxhase imfuno yasekhaya yee-alloys ezingezizo iintsimbi kunye nentsimbi, nto leyo enegalelo elihle ekukhuleni kwemfuno ye-graphite electrode kwiminyaka ezayo.
- Umthamo wangoku wemveliso yee-electrodes ze-graphite ze-UHP eTshayina umalunga ne-50 lamawaka eetoni ze-metric ngonyaka. Imfuno yee-electrodes ze-UHP eTshayina kulindeleke ukuba ibone ukukhula okukhulu kwixesha elide kwaye umthamo owongezelelweyo wee-electrodes ze-graphite ze-UHP ezingaphezulu kwe-50 lamawaka eetoni kulindeleke ukuba ubonwe ngamanqanaba alandelayo exesha lokuqikelela.
- Zonke ezi zinto zikhankanyiweyo apha ngasentla, kulindeleke ukuba zonyuse imfuno ye-graphite electrode kulo mmandla ngexesha lexesha eliqikelelweyo.
Ixesha lokuthumela: Oktobha-14-2020