Kev tsim cov electroplated seem steel rau hluav taws xob cua sov raj
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Kev tsim cov electroplated seem steel rau hluav taws xob cua sov raj
Cov khib nyiab steel yog ib qho tseem ceeb raw khoom rau steel smelting, thiab kev rov qab thiab siv cov seem steel ua lub luag haujlwm tseem ceeb hauv kev txhim kho steel kev lag luam. Cov hlau khib nyiab feem ntau yog los ntawm cov khoom siv hlau pov tseg xws li kev tsim khoom, kev ua neej nyob txhua hnub, thiab kev tiv thaiv lub teb chaws, xws li cov tsheb khib nyiab, nkoj, steel qauv txuas hniav, kev tsim steel, cov khoom siv hauv tsev, riam phom, tshuab ua liaj ua teb, thiab lwm yam. Recycling 1 tuj ntawm seem steel. tuaj yeem ua tau 0.9 tons ntawm steel, txuag 2-3 tons ntawm hlau ore, 1 tuj coking thee, thiab 5 tons ntawm limestone, thiab kuj txuag zog. Lub zog tsim nyog rau kev tsim cov hlau los ntawm cov khoom siv hlau tsuas yog ib feem peb ntawm cov khoom qub, thiab tshem tawm cov pa phem thiab ib puag ncig kev puas tsuaj los ntawm kev khawb av. Lub ntiaj teb cov khoom siv hlau suav rau 40 feem pua ntawm steelmaking raw khoom. Tebchaws Asmeskas tseem ceeb heev rau kev rov ua dua ntawm cov hlau khib nyiab, nrog yuav luag txhua lub tsheb uas tau muab pov tseg rov qab siv dua. Tus nqi rov ua dua ntawm cov hlau hauv cov khoom siv hauv tsev nce mus txog 77 feem pua , thaum cov nqi rov ua dua ntawm cov hlau tuav thiab cov phaj hauv kev tsim kho kev lag luam nce mus txog 95 feem pua. Hauv xyoo 2004, 58 feem pua ntawm cov hlau tsim hauv Tebchaws Meskas yog los ntawm cov hlau seem. Lwm lub tebchaws tsim muaj xws li UK, Lub Tebchaws Yelemees, Nyiv, Russia, thiab lwm yam kuj tseem siv ntau tshaj 40 feem pua ntawm cov khoom seem steel rau steel ntau lawm.
Tus nqi rov qab ntawm cov khoom siv hlau rov ua dua tshiab hauv Suav teb yog tsawg. Hauv xyoo 2004, kev siv hlau txhua xyoo ntawm Tuam Tshoj txoj kev lag luam steel khib nyiab yog 58 lab tons, suav txog 26 feem pua ntawm cov khoom siv hlau. Ntawm lawv, 10.23 lab tons ntawm cov hlau seem tau raug xa tawm, thiab tam sim no Tuam Tshoj tau dhau los ua ib tus neeg tseem ceeb ntawm cov khoom seem hauv ntiaj teb.
2. Kev tsim cov khoom siv rov ua dua tshiab
Qhov kev faib ua feem ntawm cov khoom siv txhuas rov ua dua tshiab hauv tag nrho cov khoom lag luam aluminium raw khoom tau dhau los ua qhov loj. Qhov piv ntawm cov khoom siv rov ua dua tshiab rau txhuas txhuas hauv cov teb chaws tsim tau nce los yog tshaj 1: 1. Nyob rau hauv 2004, qhov kev faib ua feem ntawm recycled aluminium ntau lawm nyob rau hauv lub tebchaws United States, Nyiv, thiab Ltalis accounted rau ntau tshaj 100 feem pua ntawm refined aluminium ntau lawm, nrog lub teb chaws Yelemees accounting rau 97 feem pua, lub UK accounting rau 57 feem pua, thiab Fabkis accounting rau 52 feem pua. Lub ntiaj teb qhov nruab nrab ntawm cov khoom siv rov ua dua tshiab ntawm aluminium account txog li 25 feem pua ntawm ob qho tib si refined aluminium ntau lawm thiab noj. Recycled aluminium feem ntau yog siv los ntawm cov khib nyiab aluminium castings hauv kev lag luam tsheb, chaw lag luam, kev tsim kho kev lag luam thiab ntim kev lag luam, tshwj xeeb tshaj yog txhuas cov kaus poom (pop poom). Thoob plaws ntiaj teb, kev rov qab los ntawm cov khib nyiab txhuas hauv kev lag luam tsheb thiab chaw lag luam yog qhov siab tshaj plaws, ncav cuag 90 ~ 95 feem pua, ua raws li kev tsim kho kev lag luam, nce mus txog 80 ~ 85 feem pua, thiab tus nqi rov qab ntawm cov khib nyiab txhuas yog li ntawm 30 ~ 90. feem pua. Hauv qee lub tebchaws nyob sab Europe, xws li Norway thiab Sweden, tus nqi rov ua dua ntawm txhuas cov kaus poom yog qhov tshwj xeeb, nce mus txog 95 feem pua, thaum nyob rau hauv North America, qhov rov ua dua ntawm txhuas cov kaus poom yog nyob ib ncig ntawm 50 feem pua. Hauv xyoo 2003, Tebchaws Meskas tau rov ua dua 49.9 billion pov tseg txhuas cov kaus poom, hnyav 670000 tons. Brazil thiab Is Nrias teb muab qhov tseem ceeb heev rau kev rov ua dua tshiab ntawm cov khob haus dej khib nyiab. Hauv xyoo 2003, kev rov ua dua tus nqi ntawm cov khib nyiab txhuas hauv Brazil mus txog 89 feem pua, sib npaug rau 8.2 billion pov tseg txhuas cov kaus poom, nrog qhov hnyav ntawm 112000 tons. Raws li International Aluminium Association, tag nrho cov nyiaj ntawm lub ntiaj teb txhuas rov ua dua tshiab yog kwv yees li 12 lab tons hauv ib xyoos. Qib ntawm aluminium recycling tus nqi yog ze ze rau kev cai lij choj ntawm ntau lub teb chaws. Qee lub tebchaws, xws li tim Nkij teb chaws, United Kingdom, Iceland, Eastern European lub teb chaws, thiab Russia, tseem tsis tau tsim kev cai lij choj ntawm cov khoom siv khib nyiab pov tseg, tab sis Switzerland, Sweden, Finland, Lub teb chaws Yelemees, thiab lwm lub teb chaws muaj kev cai nruj heev rau kev siv cov khib nyiab aluminium. , uas ua rau cov khoom siv khib nyiab siab aluminium recycling.
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