I-Granular recarburizer: i-eco-friendly steelmaking trend? 

Ubona i-'granular recarburizer 'ivela ngakumbi nangakumbi kwiingxoxo zeshishini kunye namaphepha athile. Wonke umntu uyakhawuleza ukuqhwaba ileyibhile 'eco-friendly' kuyo. Kodwa ngaba kukuthengisa nje, okanye ngaba kukho into yokwenyani etshintshayo indlela esilawula ngayo ikhabhoni kwivenkile enyibilikayo? Ukusuka apho ndimi khona, ndibambene nayo yonke into ukusuka kwi-electrode butt ukuya kwiikhabhoni zokwenziwa ezithandekayo, ifom yegranular ayiyonto nje yokutshintsha imilo-yinto enokubakho ye-pivot. Kodwa usathana, njengesiqhelo, ukwiinkcukacha zokusebenza kunye nezibalo zokwenyani kwizinto ezikhutshwayo kunye nesivuno, hayi incwadana.

Ubume bokuSebenza: Ngaphaya nje kokutyisa iCarbon

Masiyinqumle ingxolo. Isibheno esingundoqo se-granular recarburizer, ngakumbi i-high-purity calcined petroleum coke (CPC) esekwe, kukuqikelelwa. Awuyongezi nje ikhabhoni; wongeza into engaguqukiyo, elawulwayo yokusabela. Siye saqhuba izilingo ngokuthelekisa i-recarburizer yentlama eqhelekileyo kunye nemveliso yegranular eyi-1-4mm evela kumthengisi onje. Hebei yaoofa carbon co., ltd.. Umahluko kwisantya sokuchithwa kwisithando somlilo seladle wawuphawuleka. I-slag encinci edadayo, ii-icebergs ezimbalwa zekhabhoni enganyibilikiyo ezifuna i-oxygen lancing, esele ibonisa ukonga amandla. Yifomu yokugaya ngakumbi kwibhafu yentsimbi.

Kodwa nantsi i-hiccup yokuqala: ayizizo zonke iigranules ezilinganayo. Igama elithi 'granular' ligubungela uluhlu olukhulu-ukusuka kwisohlwayo esifana nothuli ukuya kwi-10mm yeepellets. Ukuxinana ngobuninzi kunye nokulinganisa kubaluleke kakhulu. Kakuhle kakhulu, kwaye ulahlekelwe yisivuno kwinkqubo yokutsalwa komphunga; rhabaxa kakhulu, kwaye ubuyele kwingxaki yokupheliswa kancinci. Sifunde oku ngendlela enzima ngebhetshi yokuqala eyayinosasazo olubanzi. Umqhubi wesithando somlilo wakhalaza malunga nokubuyiswa kwekhabhoni engahambelaniyo, esinyanzela ukuba silungelelanise amaxabiso okutya rhoqo, sigatya inzuzo ehambelanayo. Okufanelekileyo luluhlu lobungakanani obuqinileyo, ukuxinana okuphezulu, kunye nokufuma okuphantsi. Ivakala isisiseko, kodwa yintaba yokulawula umgangatho abavelisi abaninzi basanyuka.

Oku kudibanisa ngqo kwi-eco-angle. Ukupheliswa ngokukhawuleza, ngakumbi okuqikelelweyo kuthetha ukuba ixesha le-arc okanye ixesha lokubamba linokuphuculwa. Ixesha elincinane kumandla aphezulu liphantsi ukusetyenziswa kwamandla ombane ngetoni nganye. Leyo yinzuzo ebonakalayo, ukuba ayithanga ngqo, yendalo esingqongileyo. Akukhona nje malunga nomthombo wekhabhoni 'uluhlaza' (uninzi lusafumaneka kwi-fossil-fuel), kodwa malunga nokusebenza kakuhle kwenkqubo yonke. Xa undwendwela indawo efana YOOOOOOOOOOOOOOOORK, uya kubona iinkcukacha ezigxile kwikhabhoni esisigxina, isulfure, kunye nenitrogen. Incoko yokwenyani kunye nomphathi wezobugcisa, nangona kunjalo, kufuneka ibe malunga neegophe zokuphelisa phantsi kweemeko ezithile zesityalo sakho.

Uhlaza kwiGrafite: Ukufumana kunye neShadows yeLifecycle

Ngoku, umbuzo omkhulu: ingaba i-granular recarburizer ingaba yinxalenye yendlela yokwenza intsimbi enekhabhoni esezantsi? Ukunyanzeliswa kweshishini kukunyathela kwekhabhoni yezinto ngokwazo. Ewe, ukusebenzisa i-high-purity, i-sulphur ephantsi, ibakala eliphantsi le-nitrogen njenge-premium ye-GPC (i-graphitized petroleum coke) iyanciphisa ukungcola, okukhokelela kwintsimbi ecocekileyo kunye ne-additives enokuthi ibe mbalwa kamva. Kodwa ibango le-eco lihlala likhubeka kumthombo wezinto ezikrwada. Uninzi lweCPC kunye neGPC ziqala ngeemveliso zokucoca. Ngaba loo nto i-eco-friendly? Kuchaneke ngakumbi ukubiza ukusetyenziswa kwezixhobo ezisebenzayo-ukuguqula umjelo wenkunkuma ukusuka kwelinye ishishini ukuya kwisixhobo esichanekileyo se-metallurgical.

Eyona ndawo ithembisayo, nangona ikhohlisayo, kukusetyenziswa kwemithombo yekhabhoni esekwe kwibhayoloji okanye esetyenzisiweyo kwifomu yegranular. Ndiyibonile i-R&D kwi-granular recarburizers eyenziwe kwi-biocarbon ecudiweyo. Umceli mngeni kukunyusa ubunyulu kunye nokungaguquguquki okufunekayo kwi-EAF okanye ukucokisa iileyile. Ibhetshi enemiba eguquguqukayo ephezulu inokuba yingozi yokhuseleko; Ukuxinana okungahambelaniyo konakalisa iinkqubo zokutya ezizenzekelayo. Hebei yaoofa carbon co., ltd., kunye neminyaka engamashumi amabini kwizinto zekhabhoni, imele abadlali abasekiweyo abanolwazi lwenkqubo yokudibanisa imijelo emitsha yezinto eziluhlaza ngokuthembekileyo. Utshintsho alukho malunga nemveliso enye eluhlaza, kodwa malunga nabavelisi abavelisa isiseko sabo sokutya.

Ukusuka kumbono womjikelo wobomi, ifom yegranular inokuba nenye inzuzo efihlakeleyo: ulungiselelo kunye nokuphatha. Uthuli oluncinci ngexesha lothutho kunye nokulayisha kuthetha ilahleko encinci yempahla kunye nokuphuculwa komgangatho womoya kwindawo yokusebenza. Linqaku elincinci, kodwa kumatshini wanamhlanje ogxile kwingxelo ye-ESG, ezi zinto zisebenzayo zococeko ziqala ukubala. Banegalelo kwinkcazo yokusebenza ezinzileyo ebanzi, nokuba i-carbon chemistry ihlala ifana.

I-Case in Point: Umqobo weNkqubo yokuTyisa

Ukwamkela i-recarburizer yegranular ayisosigqibo sokuthenga nje; ngumngeni wokudibanisa. Apha kulapho ithiyori idibana khona nobunyani begritty yevenkile enyibilikayo. Sinyanzelise ukutshintshela kwiigranules kwiziko elinye, ezithengiswa kwiinzuzo ezisebenzayo. Into esingazange siyiphendule ngokupheleleyo yinkqubo ekhoyo yokondla i-pneumatic. Yenzelwe into ekhaphukhaphu, ene-flakier. Iigranuli ezixineneyo zibangele ukuvaleka kwemigca kunye nokuhamba okungaqhelekanga. Saba neeveki zokuphumla kunye nohlengahlengiso-ukunyusa uxinzelelo lomoya, ukuguqula ukugoba kwemigca-ngaphambi kokuba kuhambe kakuhle.

La mava agxininisa ingongoma ebalulekileyo: izinto eziphathekayo kunye nendlela yokwahlula. I-Granular recarburizer ihlala isebenza ngcono ngeenkqubo ezizinikeleyo, ezichanekileyo zokondla ezinokuyilinganisa ngokuthe chu ebhafini okanye kwileyile. Utyalo-mali olukhulu lwenkqubo enjalo lunokuba ngumqobo. Ukubala kwe-ROI akufuneki kubandakanye nje ixabiso ngetoni nganye yekhabhoni, kodwa isivuno esiphuculweyo (ukunciphisa ilahleko ye-oxidation), ukugcinwa kwabasebenzi ukusuka kungenelelo oluncinci lwezandla, kunye nokugcinwa kwamandla ukusuka kwixesha elifutshane lokucwangcisa. Luphuculo lweenkqubo, hayi utshintshiselwano lwempahla.

Ndikhumbula ingxoxo kunye neqela elivela kumenzi wekhabhoni owagxininisa amandla abo okulungelelanisa ubungakanani begranular kunye noxinaniso kwisixhobo esithile sokutyisa umxhasi. Olo luhlobo lwenkxaso ebonakalayo eyenza okanye iphule inguqu. Isusa incoko ekuthengiseni imveliso ukuya ekusombululeni umqobo wenkqubo.

IiNyaniso zeMarike kunye nesiGqibo sokuTrendi

Ngoko ke, ngaba sisimo esihlala sihleli okanye sisigaba esidlulayo? Ukujonga kwiincwadi ze-odolo kunye nokugxilwa kobugcisa kwabavelisi abakhulu bezongezo zekhabhoni, ukutshintshela kwiifom zegranular ziyinyani kwaye zikhawuleza. Ihambelana nabaqhubi beshishini lentsimbi ebanzi: ukuchaneka, ukuzenzekelayo, kunye nokusebenza kakuhle kwezixhobo. Kumabanga aphezulu entsimbi apho ulawulo lwe-nitrogen kunye ne-hydrogen pickup lubalulekile, ukuhambelana kweprimiyamu yegranular recarburizer kuya kuba yinto engaxoxisiyo.

Nangona kunjalo, ukuyibiza ngokuba yi-eco-friendly kwihlabathi lonke kukugqithisela. Yinkqubo esebenzayo ngakumbi yokongeza i-carbon, engakhokelela ekunciphiseni ukusetyenziswa kwamandla kunye nokuchithwa kwezinto. Ezo ziinzuzo zokusingqongileyo, kodwa ziziphumo zesibini. Impumelelo yokuqala eluhlaza iya kuvela ekususeni ikhabhoni kwikhonkco lemveliso ye-recarburizer okanye ekuphuhliseni ezinye iindlela ezinokusebenza ezinkulu ezivela kwimithombo evuselelekayo. Okwangoku, i-recarburizer yegranular ibonwa ngcono njengophuculo olusebenzayo, elenza ukuba ukwenziwa kwentsimbi kulawulwe ngakumbi kwaye kungabi yinkcitho.

Ekugqibeleni, ixabiso lixhomekeke ngokupheleleyo kumxholo wesityalo sakho. Ukuba uqhuba i-EAF endala, eyondliwe ngesandla ngonyamezelo oluphezulu lokuguquguquka, indleko-inzuzo ayinakupakishwa. Kodwa kwiziko langoku, elizenzekelayo elileqa i-specs engqongqo kunye neendleko zokusebenza ezisezantsi, linyathelo elisengqiqweni. Ayingomlingo, kodwa sisixhobo esingcono. Kwaye kule shishini, isixhobo esifanelekileyo, esisetyenziswe ngokuchanekileyo, sisoloko sihlula inzuzo kwilahleko, kunye nokushisa okupholileyo kwi-messy. Umkhwa, ke ngoko, ubonakala ungaphantsi malunga nokuguqulwa kohlaza ngequbuliso kunye nokunye malunga nokuqhubeka koshishino lwentsimbi, ukuguquguquka kokuguquguquka ngokubhekiselele ekuchanekeni okukhulu kunye nokungasebenzi kakuhle-igranule enye ngexesha.