1.Dab tsi yog qhov kev sau thiab pretreatment cov kauj ruam hauv kev cob qhia?
Online Automated Recycling: Niaj hnub nimno loj - nplai stamping kab feem ntau nruab nrog cov khib nyiab conveyors thiab balers, uas cia li sau thiab compact strips thiab nplooj ntawv rau hauv siab - ntom bales. Txoj kev no yog qhov ua tau zoo, xav tau qhov chaw me me, thiab muaj kev nyab xeeb zoo.
Offline Centralized Collection: Cov chaw me me thiab nruab nrab- cov chaw ua haujlwm loj feem ntau siv cov khib nyiab pov tseg thiab cov hoppers rau kev sau, hloov cov khib nyiab mus rau qhov chaw nruab nrab.
Cov kev coj ua zoo tshaj:
Kev faib tawm nruj: Cov khib nyiab yuav tsum tau muab cais raws li cov khoom siv (xws li cov pa roj carbon zoo tib yam, cov hlau tsis muaj steel, cov ntawv galvanized, aluminium), thickness, thiab huv si (txawm tias nws muaj cov roj lossis cov coatings). Cov khib nyiab sib xyaw muaj tus nqi qis tshaj.
Kev tshem tawm raws sij hawm: Tiv thaiv cov khoom pov tseg thiab ua kom muaj kev nyab xeeb thiab ua raws li 5S.
Compression Baling: Baling txo qhov ntim txog li 70%, txo qis kev thauj mus los thiab khaws cov nqi thiab yog ib qho tseem ceeb hauv kev nce nqi muag.
2. Leej twg yog tus neeg yuav khoom tseem ceeb?
Cov hlau loj loj: Cov no yog qhov kawg siv tau zoo tshaj - cov neeg siv. Lawv muaj cov cuab yeej crushing thiab sorting siab heev, ua rau lawv ncaj qha pub dawb huv, zoo - cais cov khib nyiab pov tseg rau hauv lawv lub qhov cub kom siab - zoo "kub noj."
Cov kws tshaj lij cov khoom siv hluav taws xob rov ua dua tshiab: Raws li cov neeg nruab nrab, lawv sau, txheej txheem, thiab tom qab ntawd rov muag cov seem rau steel mills. Xaiv lub npe nrov recycler uas muaj peev xwm ua tau zoo yog qhov tseem ceeb.
Cov chaw siv me me: Cov no feem ntau muab cov nqi qis dua thiab tsim nyog rau kev ua cov ntim me me lossis cov khoom sib xyaw.
3.Dab tsi yog tus nqi mechanism?
Kev ua lag luam- tsav: Cov nqi sib txuas nrog cov nqi steel yav tom ntej thiab cov khoom lag luam hauv cheeb tsam thiab kev xav tau, thiab hloov pauv ntau.
Qhov hnyav-raws li tus nqi: Kev daws teeb meem yog nyob ntawm tons.
Kev txiav tawm qhov hnyav: Yog tias cov khoom seem muaj roj, xim, lossis lwm yam tsis huv, kev txiav tawm yuav raug txiav los yog tus nqi yuav raug txo.
4.Dab tsi yog cov txheej txheem kev ua haujlwm tshwj xeeb?
Crushing: Cov khoom loj ntawm cov khib nyiab yog crushed rau hauv me me, cov khoom sib xws kom yooj yim sib nqus sib cais thiab smelting.
Kev txheeb xyuas:
Sib Nqus Sib Nqus: Sib cais cov ntaub ntawv ferromagnetic (steel, hlau) los ntawm cov khoom tsis yog-sib nqus (aluminium, tooj liab, roj hmab).
Ntug tam sim no sib cais: cais cov tsis yog{0}}ferrous hlau.
Phau ntawv/Visual Separation: Ua kom purity.
Txheej / Degreasing: Qee qhov siab - kawg ua cov kab siv siab - kub los yog tshuaj lom neeg txoj kev los tshem tawm cov coatings nto thiab roj, txhim kho cov khoom purity.
5.Qhov kev ceev faj txog kev tuav cov khoom pov tseg tshwj xeeb yog dab tsi?
Coated / plated pov tseg (piv txwv li, galvanized thiab aluminized zinc nplooj):
Zinc thiab aluminium coatings yog impurities nyob rau hauv steelmaking thiab yuav tsum tau kho los ntawm tshwj xeeb plua plav tshem tawm thiab ib puag ncig tiv thaiv cov cuab yeej ntawm lub steel zeb. Hom khib nyiab no pheej yig dua li cov khib nyiab uas tsis muaj coated.
Roj- muaj cov khib nyiab:
Cov roj paug ua rau cov pa taws thiab cov pa phem thaum smelting. Steel mills nruj me ntsis tswj qhov no los yog kho nws ntawm tus nqi txo. Kev sib xyaw nrog cov kua dej txiav, emulsions, lossis lwm yam pov tseg pov tseg raug txwv nruj; txwv tsis pub, nws yuav raug kho raws li cov pov tseg uas muaj kev phom sij, uas ua rau cov nqi siab heev.
Stainless hlau thiab tshwj xeeb alloy pov tseg:
Yuav tsum tau rov ua dua tshiab; nws tus nqi yog siab dua li cov pa roj carbon zoo tib yam. Sib tov nws nrog cov pa roj carbon zoo tib yam yuav ua rau tus nqi ntawm ob qho tib si puas.
Cov khib nyiab thiab khib nyiab:
Cov khib nyiab zoo heev (xws li "cov plaub hau scraps" los ntawm stamping) muaj cov nqi qis dua thiab yooj yim oxidized. Kev saib xyuas tshwj xeeb yuav tsum tau coj mus rau hauv kev sau thiab ntim khoom kom tsis txhob muaj kev sib tsoo tshwm sim.