Ukupheka amalahle kwi-Steelmaking: Isikhokelo esiBanzi

Eli nqaku liphonononga indima ebalulekileyo ye ukupheka amalahle ekwenzeni intsimbi, ichaza iimpawu zayo, inkqubo yokwenza intsimbi, ukuqwalaselwa kokusingqongileyo, kunye neendlela ezizayo. Sihlola ukuphendula kweekhemikhali, imingeni ejongene noshishino, kunye nezisombululo ezinokubakho kwikamva elizinzileyo kwimveliso yentsimbi.

Ukuqonda indima yokuCoka amalahle

Ukupheka amalahle ngamalahle e-metallurgical akhethwe ngokukodwa ukukwazi kwawo ukuvelisa i-coke, i-porous fuel eyimfuneko kwinkqubo yomlilo yokuqhuma kwentsimbi. Ngokungafaniyo nezinye iintlobo zamalahle, amalahle okuphekela aneempawu ezizodwa ezenza ukuba alungele le njongo. Ezi zakhiwo zibandakanya umxholo ophezulu we-volatile, umxholo wesulfure ophantsi, kunye noluhlu oluthile lomxholo wothuthu. Umxholo ophakamileyo oguquguqukayo ubalulekile ekuveliseni isakhiwo se-coke esomeleleyo kunye ne-porous, eyimfuneko ekunciphiseni okusebenzayo kwentsimbi kwi-blast furnace. Umxholo wesulfure ophantsi uyimfuneko ekunciphiseni ukungcoliswa kwesulfure kwintsimbi ephumela, ukugcina umgangatho wayo kunye neempawu ezifunwayo.

Iipropati Zokuphekela amalahle

Iipropati ezininzi eziphambili zahlula amalahle okupheka kwamanye amalahle. Ezi ziquka umxholo wayo ophezulu wekhabhoni, uluhlu oluthile lwemiba eguquguqukayo, kunye nomxholo ophantsi womlotha kunye nesulfure. Uluhlu oluchanekileyo lwezi zakhiwo luyahluka ngokuxhomekeke kumgangatho ofunekayo we-coke kunye nenkqubo ethile yokwenza insimbi. Iimpawu ze ukupheka amalahle ichaphazela ngokuthe ngqo umgangatho we-coke eveliswayo, leyo ichaphazela ukusebenza kakuhle kunye nemveliso yenkqubo yokwenza insimbi. Ukhetho lwe ukupheka amalahle linyathelo elibalulekileyo ekuqinisekiseni ukuveliswa kwentsimbi ephezulu. Ababoneleli, njengaye I-Inner Mongolia i-Xinxin Silicon Industry Co.,Ltd, zivavanye ngononophelo ezi zakhiwo ukuhlangabezana neemfuno zabathengi.

Inkqubo yokwenza iSteelmaking kunye neCoal Coal

Inkqubo yokwenza intsimbi ibandakanya amanyathelo aliqela, kunye nesithando somlilo siyindawo ephakathi apho ukupheka amalahle idlala indima ebalulekileyo. Kwisithando somlilo, i-coke isebenza njenge-fuel kunye ne-arhente yokunciphisa. Inika ubushushu obufunekayo ukunyibilikisa intsimbi kunye nokunciphisa i-iron oxides kwintsimbi yesinyithi. Isakhiwo se-porous se-coke siqinisekisa ukuhamba kwegesi ngokufanelekileyo kunye nokusabalalisa ukushisa ngaphakathi kwesithando somlilo. Umsebenzi we-blast furnace unamandla amakhulu kakhulu, okwenza ukusebenza kakuhle kwe ukupheka amalahle inkxalabo ephambili kubavelisi bentsimbi.

Ukusabela kweBlast Furnace

Iimpendulo zeekhemikhali ngaphakathi kwesithando somlilo ziyinkimbinkimbi kwaye zibandakanya ukunciphisa i-iron oxides (i-Fe2O3 kunye ne-Fe3O4) kwi-iron metallic (Fe) isebenzisa i-carbon monoxide (CO) eveliswe ekutsha kwe-coke. Le nkqubo ixhomekeke kakhulu kwiqondo lokushisa, ifuna ukushisa okuphezulu okwenziwa kukutshiswa kwe-coke. Umgangatho we-coke uchaphazela ngokuthe ngqo izinga kunye nokusebenza kakuhle kwenkqubo yokunciphisa kunye nomgangatho wesinyithi obangelwayo. Ukwenza umsebenzi ogqwesileyo, kuqwalaselwe ngononophelo ekukhetheni nasekuxutyweni kweentlobo ngeentlobo zeemveliso ukupheka amalahle ukufezekisa iipropati ezifunwayo ze-coke.

Ukuqwalaselwa kokusingqongileyo kunye noZinzo

Ushishino lwentsimbi lunophawu lokusingqongileyo olubalulekileyo, nge ukupheka amalahle ukutsha okunegalelo ekukhutshweni kwegesi yegreenhouse. Ishishini lizama ngokuzimisela ukunciphisa impembelelo yalo yokusingqongileyo ngokusebenzisa izicwangciso ezahlukeneyo, kubandakanywa ukulungelelaniswa kwemisebenzi yokuqhuma kwesithando somlilo, ukuphuhliswa kwamanye amafutha, kunye nokuphunyezwa kokugcinwa kwekhabhoni kunye nokugcinwa kweteknoloji. Uphando luyaqhubeka kwiiteknoloji ezizezinye zokuvelisa isinyithi kunye nentsimbi, njengeenkqubo ezisekelwe kwi-hydrogen, ukunciphisa ukuthembela kumafutha e-fossil afana ukupheka amalahle. Ezi nkqubela phambili zibalulekile ekuqinisekiseni ikamva elizinzileyo lokwenziwa kweentsimbi.

IiNdlela zexesha elizayo kwiCoking Coal and Steelmaking

Ikamva lokwenziwa kweentsimbi kusenokwenzeka ukuba libandakanye utshintsho olusingise kwiinkqubo ezizinzileyo nezingamelani nokusingqongileyo. Oku kubandakanya ugxininiso olukhulu kuphuculo olusebenzayo kubuchwephesha obukhoyo, ukuhlola ezinye ii-arhente zokunciphisa ukunciphisa ukuthembela ukupheka amalahle, kunye nokuphuhlisa iindlela ezintsha zokwenza intsimbi kunye nefuthe elincinci lokusingqongileyo. Ukuphononongwa kwamanye amafutha kunye neenkqubo kubalulekile ekuphumezeni ezi njongo. Oku kubandakanya uphando kunye nokuphunyezwa kweteknoloji yokubamba i-carbon, ejolise ekunciphiseni kakhulu i-carbon footprint yemveliso yensimbi.

Qaphela: Olu luhlu luqikelelweyo kwaye lunokwahluka ngokuxhomekeke kumthombo othile wamalahle kunye neemfuno zomgangatho.

Olu lwazi lwenzelwe iinjongo zolwazi ngokubanzi kuphela. Soloko ubonisana neengcali ezifanelekileyo zeshishini kunye nemithombo esemthethweni yezicelo ezithile kunye namanyathelo okhuseleko.