Kodi Chitsulo Chimapangidwa Bwanji ndi Iron Ore?

Chitsulo ndi chimodzi mwa zinthu zofunika kwambiri pa chitukuko chamakono, zomwe zimapanga maziko a mafakitale monga zomangamanga, magalimoto, zomangamanga, mphamvu, zomangamanga, ndi kupanga. Ngakhale kuti chitsulo chimagwiritsidwa ntchito kwambiri, anthu ambiri sadziwa momwe chimapangidwira kuchokera ku miyala yachitsulo yosaphika. Njira yopangira zitsulo ndi ulendo wosangalatsa wosintha, komwe mchere wachilengedwe umasinthidwa kukhala chosakaniza champhamvu, chosinthasintha, komanso cholimba chomwe chimathandizira chuma cha padziko lonse lapansi.

M'nkhaniyi, tiona mwatsatanetsatane njira yonse yopangira zitsulo, kuyambira pa kuchotsa zitsulo, kusuntha kudzera mu kukonza ndi kusungunula, ndikutha ndi zinthu zopangidwa ndi zitsulo zokonzedwa bwino zomwe zakonzeka kugwiritsidwa ntchito m'mafakitale.

1. Kufunika kwa Chitsulo mu Anthu Amakono

Chitsulo ndi chimodzi mwa zipangizo zogwiritsidwa ntchito kwambiri pa uinjiniya chifukwa cha kuphatikiza kwake kwapadera kwa mphamvu, kusinthasintha, kulimba, komanso kugwiritsa ntchito bwino ndalama. Kuyambira nyumba zazitali ndi milatho mpaka mapaipi ndi zida zopangira opaleshoni, chitsulo chakhala chofunikira kwambiri. Kupanga kwake kumagwirizana kwambiri ndi chitukuko cha mafakitale ndi kukula kwachuma.

Makampani opanga zitsulo padziko lonse lapansi amapanga matani pafupifupi 2 biliyoni pachaka, ndipo kufunikira kukupitirira kukula pamene mayiko omwe akutukuka akukula ndikukula kwa zomangamanga zawo komanso chuma chotsogola chikusinthira ku mphamvu zongowonjezwdwanso, magalimoto amagetsi, ndi mizinda yanzeru. Kuti timvetse bwino makampaniwa, ndikofunikira kuphunzira momwe chitsulo chimapangidwira kuchokera ku zinthu zopangira: chitsulo.

2. Kodi Chitsulo Chopangidwa ndi Matope N'chiyani?

Miyala yachitsulo ndi mwala wachilengedwe womwe uli ndi mchere wachitsulo, makamaka ma oxide monga hematite (Fe2O3), magnetite (Fe3O4), ndi limonite (FeO(OH)·nH2O). Miyala iyi imakumbidwa kuchokera kuzinthu zomwe zimapezeka m'maiko monga Australia, Brazil, China, India, ndi Russia, zomwe zimapereka chitsulo chambiri padziko lonse lapansi.

Ubwino wa miyala yachitsulo umatsimikiziridwa ndi kuchuluka kwa chitsulo chomwe chili nacho. Miyala yamtengo wapatali imakhala ndi chitsulo choposa 60 peresenti, pomwe miyala yamtengo wotsika imafuna njira zowonjezerera chitsulo kuti iwonjezere kuchuluka kwake musanayambe kugwiritsa ntchito popanga zitsulo.

3. Kuchokera ku Matope Kupita ku Chitsulo: Ng'anjo Yophulika

Gawo loyamba lalikulu pakupanga chitsulo ndikusintha chitsulo kukhala chitsulo chosungunuka. Izi nthawi zambiri zimachitika mu ng'anjo yophulika, nyumba yayikulu yoyima yokhala ndi njerwa zosalimba zomwe zimatha kupirira kutentha kwambiri.

Gawo 1: Kukonzekera Zipangizo Zopangira

• Miyala yachitsuloimaphwanyidwa ndi kusakanizidwa kuti ikhale yabwino nthawi zonse.

• Coke, yopangidwa ndi makala otentha popanda mpweya, imagwira ntchito ngati mafuta komanso ngati chochepetsera kutentha.

• Mwala wa laimukapena dolomite imawonjezedwa ngati madzi otuluka kuti achotse zinthu zodetsa monga silika, sulfure, ndi phosphorous.

Gawo 2: Kuchaja Ng'anjo

Zigawo za chitsulo, coke, ndi limestone zimayikidwa pamwamba pa ng'anjo yophulika. Mpweya wotentha umalowetsedwa pansi kudzera mu nozzles zotchedwa tuyeres.

Gawo 3: Machitidwe a Mankhwala

Mkati mwa ng'anjo, zinthu zingapo zovuta zimachitika:

• Coke imayaka kuti ipange carbon monoxide (CO), yomwe imachepetsa ma oxide achitsulo kukhala chitsulo chosungunuka.

• Zodetsedwa zimasakanikirana ndi miyala yamchere kuti zipange slag, chinthu chopepuka chomwe chimayandama pamwamba pa chitsulo chosungunuka.

• Chitsulo chosungunuka, chomwe nthawi zambiri chimatchedwa chitsulo cha nkhumba, chimasonkhana pansi pa ng'anjo.

Chitsulo cha nkhumba ichi nthawi zambiri chimakhala ndi mpweya wa carbon ndi zinthu zina zosafunika, zomwe zimapangitsa kuti chikhale chofooka komanso chosagwiritsidwa ntchito nthawi zambiri. Chiyenera kutsukidwa kukhala chitsulo.

4. Kuyeretsa Nkhumba Chitsulo Kukhala Chitsulo

Gawo lotsatira popanga zitsulo limaphatikizapo kuchepetsa mpweya woipa ndi kuchotsa zinyalala kuchokera ku chitsulo cha nkhumba. Pali njira ziwiri zazikulu:

A. Ng'anjo Yoyambira ya Oxygen (BOF)

• Chitsulo cha nkhumba chosungunuka kuchokera ku ng'anjo yophulika chimathiridwa mu ng'anjo yoyambira ya okosijeni.

• Mpweya woyera umalowetsedwa mu chitsulo chosungunuka ndi mphamvu yayikulu, zomwe zimapangitsa kuti kaboni ndi zinthu zina zonyansa ziume.

• Izi zimachepetsa kuchuluka kwa kaboni kufika pa 2 peresenti, zomwe zimapangitsa kuti chitsulo chikhale cholimba.

Njira ya BOF imapanga zoposa 70 peresenti ya kupanga zitsulo padziko lonse lapansi.

B. Ng'anjo ya Arc yamagetsi (EAF)

• Mu ndondomeko ya EAF, zidutswa zachitsulo zobwezerezedwanso komanso nthawi zina chitsulo chochepetsedwa mwachindunji (DRI) zimasungunuka pogwiritsa ntchito mphamvu zamagetsi.

• Kaboni, sulfure, ndi zinthu zina zodetsedwa zimasinthidwa pogwiritsa ntchito ma flux ndi zowonjezera.

• Njira ya EAF ndi yosinthasintha, yokhazikika, komanso yotchuka kwambiri chifukwa imadalira kwambiri kubwezeretsanso zinthu zakale.

5. Kuyeretsa ndi Kuyika Aloyi kwachiwiri

Pambuyo pa sitepe yoyamba yopanga zitsulo, chitsulocho nthawi zambiri chimayengedwa kwambiri mu uvuni wa mbale. Kuyenganso kwachiwiri kumalola kuwongolera bwino kapangidwe ka mankhwala, kuchotsa mpweya wosungunuka monga haidrojeni ndi nayitrogeni, komanso kusintha kutentha.

Zinthu zosakaniza zimawonjezedwa pagawoli kuti zipereke mawonekedwe enaake:

• Chromiumkuti zisawonongeke ndi dzimbiri (chitsulo chosapanga dzimbiri).

• Fakitolichifukwa cha kulimba mtima ndi mphamvu.

• Manganesechifukwa cha kuuma ndi kukana kuvala.

• Molybdenumkuti ikhale ndi mphamvu yotentha kwambiri.

Gawo ili limalola opanga monga sakysteel kupanga zitsulo zapadera zomwe zimakwaniritsa miyezo yapadziko lonse lapansi yamafakitale ovuta.

6. Kuponya Chitsulo

Chitsulo chikakonzedwa bwino, chiyenera kulimba kukhala mawonekedwe ogwiritsidwa ntchito. Njira yodziwika kwambiri ndikuponyera kosalekeza, kumene chitsulo chosungunuka chimapita ku nkhungu yoziziritsidwa ndi madzi ndipo chimalimba kukhala mawonekedwe osamalizidwa bwino monga ma billets, maluwa, kapena slabs.

• Mabilletsamagwiritsidwa ntchito pazinthu zazitali monga mipiringidzo, ndodo, ndi waya.

• Maluwaamakonzedwa kukhala mawonekedwe a kapangidwe kake monga ma I-beams.

• Ma slabsamakulungidwa m'mapepala, mbale, ndi zozungulira.

Kuponyera kosalekeza kumathandizira kuti zinthu zigwire bwino ntchito, kumachepetsa zinyalala, komanso kumatsimikizira kuti zitsulo zimakhala zapamwamba kwambiri.

7. Kugubuduza ndi Kumaliza

Chitsulo chomalizidwa pang'ono chimayendetsedwa ndi kutentha ndi kuzizira kuti chifike pa makulidwe omaliza ndi mtundu wa pamwamba womwe makasitomala amafunikira.

• Kugubuduzika kotenthaimapanga chitsulocho pamene chili pamwamba pa kutentha kwake kobwezeretsanso, zomwe zimapangitsa kuti zikhale zosavuta kupanga mbale, ma coil, kapena ma profiles.

• Kuzungulira kozizirazimachitika kutentha kwa chipinda, zomwe zimapangitsa kuti pamwamba pake pakhale bwino, mphamvu, komanso kulondola kwa mawonekedwe ake.

Pambuyo pogubuduza, chitsulocho chingakumanenso ndi:

• Kuphimbakuti zinthu ziyende bwino.

• Kukongoletsakuteteza dzimbiri.

• Chithandizo cha pamwambakuti ziwoneke bwino komanso kuti zisawonongeke.

Zotsatira zake ndi zinthu zambiri zachitsulo zokonzeka kugwiritsidwa ntchito m'magawo osiyanasiyana.

8. Zoganizira Zachilengedwe Pakupanga Zitsulo

Kupanga zitsulo kumafuna mphamvu zambiri ndipo nthawi zambiri kumagwirizanitsidwa ndi mpweya woipa wa carbon dioxide. Komabe, makampaniwa akupita patsogolo kwambiri pakukula kwa zinthu kudzera mu:

• KubwezeretsansoChitsulo ndi chinthu chomwe chimabwezeretsedwanso ntchito kwambiri padziko lonse lapansi, ndipo chiŵerengero cha kubwezeretsanso zinthu chomwe chimabwezerezedwanso ntchito ndi choposa 85 peresenti.

• Maguwa a Magetsi a Arc: Ma EAF amachepetsa kudalira mafuta pogwiritsa ntchito magetsi ndi zitsulo zotsalira.

• Ukadaulo Wogwira Kaboni: Mapulojekiti oyesera cholinga chake ndi kulanda ndikusunga CO2 kuchokera ku zitofu zophulika.

• Kuchepetsa Hydrogen: Opanga zitsulo ena akuyesa haidrojeni m'malo mwa coke ngati chochepetsera mpweya woipa.

Kupanga zitsulo kosatha n'kofunika kwambiri pokwaniritsa zolinga za nyengo yapadziko lonse komanso kukwaniritsa kufunikira kwakukulu kwa zinthu zofunikazi.

9. Atsogoleri Padziko Lonse Pakupanga Zitsulo

Mayiko monga China, India, Japan, ndi South Korea ndi omwe amalamulira kupanga zitsulo padziko lonse lapansi. Makampani monga ArcelorMittal, Nippon Steel, Baosteel, ndi Tata Steel ndi ena mwa opanga zitsulo zazikulu kwambiri padziko lonse lapansi.

Ogulitsa amakondasakysteelYang'anani kwambiri pakupereka zinthu zapamwamba kwambiri zachitsulo chosapanga dzimbiri, zitsulo zosungunulira, ndi zitsulo za kaboni kwa makasitomala apadziko lonse ku Europe, Middle East, ndi Latin America, ndikuwonetsetsa kuti makasitomala alandila zinthu zomwe zikugwirizana ndi miyezo yokhwima yamakampani.

10. Kugwiritsa Ntchito Chitsulo

Kusinthasintha kwa zitsulo kumapangitsa kuti zikhale zofunika kwambiri m'mafakitale ambiri:

• Ntchito yomanga: Mipiringidzo yolimbitsa, matabwa, ndi chitsulo chomangira.

• Magalimoto: Mapanelo a thupi, zigawo za injini, ndi machitidwe achitetezo.

• Mphamvu: Mapaipi, ma turbine amphepo, ndi mapulatifomu a m'mphepete mwa nyanja.

• Zamlengalenga: Zitsulo za aloyi zolimba kwambiri za nyumba za ndege.

• Zachipatala: Zipangizo zopangira opaleshoni ndi zida za kuchipatala.

Kusinthasintha kwa chitsulo kumatsimikizira kuti chidzakhalabe chinthu chofunikira mtsogolo.

Mapeto

Kusintha kwa chitsulo kukhala chitsulo ndi chimodzi mwa zinthu zodabwitsa kwambiri zomwe makampani amakono apeza. Kuyambira kukumba mchere wachilengedwe, kudutsa mu uvuni wophulika, kuyeretsa, kusakaniza, ndi kuponyera, njirayi imapereka zinthu zolimba komanso zosinthika.

Pamene ukadaulo ukupita patsogolo, kupanga zitsulo kumapitilizabe kusintha kukhala kokhazikika, kogwira ntchito bwino, komanso kogwira ntchito bwino. Kaya zimagwiritsidwa ntchito m'nyumba zazitali, magalimoto, kapena machitidwe amagetsi, zitsulo zimakhalabe mzati wa kupita patsogolo kwa mafakitale ndi chitukuko cha anthu.

Kwa mafakitale omwe akufuna kupeza zinthu zachitsulo zapamwamba kwambiri zokhala ndi miyezo yotsimikizika, makampani monga sakysteel amapereka ukatswiri, kudalirika, komanso luso lofunikira kuti athandizire mapulojekiti ofunikira padziko lonse lapansi.