Kev siv ntawmcev steeltsis yog tsuas yog kev nyab xeeb rau tib neeg xwb, tab sis kuj muaj kev nyab xeeb rau ib puag ncig.Tab sis vim li cas peb thiaj hais li ntawd?
Hlau yog Recyclable heev
Nws yog qhov paub me ntsis tias steel yog cov khoom siv rov ua dua tshiab tshaj plaws hauv ntiaj teb. Hauv xyoo 2014,86%ntawm cov hlau tau rov ua dua tshiab, uas dhau ntawm cov ntawv, txhuas, yas thiab iav. Qhov no yuav zoo kawg nkaus, tab sis thaum koj xav txog qee yam ntawm cov hlau hauv lub sijhawm tiag tiag, nws ua rau kev nkag siab zoo:
Raws li kev txheeb cais ntawm Ellen MacArthur Foundation, tsuas yog 14% ntawm cov yas hauv ntiaj teb tau rov ua dua. Nyob rau hauv sib piv, lub ntiaj teb no daim ntawv rov qab tus nqi yog 58%, thiab cov hlau rov qab tus nqi yog 70% mus rau 90%. Obviously, tus nqi rov qab ntawm steel yog siab tshaj.
Vim li cas cov hlau ua cov khoom siv nrog tus nqi rov qab siab tshaj? Muaj ntau yam laj thawj tseem ceeb:
1. Magnetism ntawm hlau
Hlau yog cov khoom siv yooj yim tshaj plaws hauv ntiaj teb, feem ntau vim nws cov hlau nplaum. Magnetism ua rau nws yooj yim rau lub crusher cais cov seem hlau, kom lub tsheb disassembly cov lag luam tuaj yeem tau txais cov txiaj ntsig rov qab, vim tias cov khoom seem hlau ncig ua lag luam yog cov paub tab.
2. Hlau muaj cov khoom siv hlau zoo heev
Ib qho txiaj ntsig zoo tshaj plaws ntawm cov hlau ua cov khoom siv yog tias nws yuav tsis degrade thaum rov siv dua. Qhov no txhais tau hais tias cov hlau siv nyob rau hauv txhua lub peev xwm tuaj yeem yaj thiab siv los ntawm ib qho khoom mus rau lwm qhov yam tsis muaj kev poob haujlwm.
3. Ntau cov khoom seem
Muaj ntau qhov chaw ntawm seem steel, uas tau muab faib ua peb pawg los ntawm kev lag luam:
Cov khib nyiab hauv tsev - Qhov no yog cov hlau uas tau txais los ntawm cov txheej txheem tshwm sim hauv lub hoobkas. Qhov no yog cov txheej txheem tau txais los ntawm tag nrho cov nroj tsuag steel, vim tias tag nrho cov ntaub ntawv pov tseg tau rov qab siv rau qee txoj kev.
Factory scrap - cov khoom siv ntau tshaj tawm los ntawm cov ntawv xaj steel thiab xa rov qab mus rau lub Hoobkas rov ua dua tshiab. Cov khib nyiab tsis siv tam sim ntawd yog yaj tam sim ntawd thiab ua rau cov khoom tshiab.
Cov khib nyiab pov tseg - qhov no tuaj yeem yog los ntawm cov khoom qub, cov khib nyiab pov tseg, lossis txawm tias rov siv cov khoom siv tub rog uas tsis siv lawm. Plaub steel ncej tuaj yeem tsim los ntawm cov ntaub ntawv ntawm lub tsheb uas tau muab tshem tawm.
4. Recycled steel muaj kev pab cuam ib puag ncig
Recycled steel muaj ib puag ncig zoo. Txhua tuj ntawm seem steel siv rau steelmaking yuav txo tau 1.5 tons ntawm carbon dioxide, 14 tons ntawm hlau ore thiab 740 kg ntawm thee. Tam sim no, peb rov qab tau txog 630 lab tons ntawm cov hlau seem txhua xyoo, thiab tuaj yeem txo tau ze li ntawm 945 lab tons ntawm carbon dioxide txhua xyoo, ntau dua 85%. Piv nrog rau cov txheej txheem ib txwm siv hlau ore thiab thee ua cov khoom siv raw, cov khoom siv hlau los ntawm cov khoom siv tsuas yog siv li ib feem peb ntawm lub zog. Cov khib nyiab kuj yog ib qho tseem ceeb raw khoom nyob rau hauv cov tsoos blast furnace converter txheej txheem. Ntxiv cov seem tuaj yeem nqus tau lub zog ntau dhau hauv cov txheej txheem converter steelmaking thiab tswj cov tshuaj tiv thaiv kub hauv qhov cub.
Hlau yog ib qho ntawm cov khoom siv rov ua dua tshiab tshaj plaws
Cov txheej txheem txheej txheem ntawm txhua cov nroj tsuag steel yog rov qab cov seem los ntawm kev tsim cov hlau. Cov neeg tsim khoom tau kawm ntev ntev tias cov hlau yuav tsis plam lub zog thaum nws rov ua dua thiab siv rau lwm lub hom phiaj. Txawm tias muaj kuab paug xws li xim thiab xeb yuav tsis cuam tshuam rau lub zog ntawm cov hlau. Xyoo 2020, kev lag luam steel yuav rov qab tau cov hlau txaus los ntawm cov tsheb siv ib leeg los tsim 16 lab lub tsheb tshiab. Txawm hais tias ob ntawm txhua peb tons ntawm cov hlau tshiab yog tsim los ntawm cov khoom siv rov ua dua tshiab, nws tseem yuav tsum tau ntxiv cov hlau tseem ceeb hauv cov txheej txheem. Yog vim li cas yog tias ntau lub tsheb steel thiab cov qauv feem ntau siv tau ntev heev thiab muaj lub neej ua haujlwm ntev, thaum lub ntiaj teb kev thov rau steel txuas ntxiv mus.
Nyob rau hauv lub neej yav tom ntej, peb yuav tsum txhim kho kev siv cov khoom siv los ntawm kev txhim kho cov khoom tsim, kev tsim khoom, kev txhim kho kev siv thiab rov siv cov khoom los ntawm cov neeg siv khoom, thiab txuas ntxiv lub neej kev pab cuam ntawm cov ntaub ntawv. Los ntawm kev siv cov kev ntsuas no, peb tuaj yeem txhawb txoj kev loj hlob ntawm zej zog.
Yuantai Derun Cov yeeb nkab steelPab neeg zoo siab tias peb ua peb txoj haujlwm ua kom peb lub ntiaj teb huv. Peb muab qhov tseem ceeb rau cov ntaub ntawv uas yooj yim rau rov ua dua. Thaum peb ua haujlwm hauv ib qhov project, peb muab qhov tseem ceeb rau cov khoom siv rov ua dua tshiab thiab rov ua dua tshiab.
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Post lub sij hawm: Feb-07-2023
