Qhov twg muab cov xov tooj ntawm tes thiab cov khoos phis tawj tawg lawm?
Ntau tus neeg tsis paub txog tias cov khoom siv hluav taws xob zoo li tsis muaj txiaj ntsig tau sawv cev rau qhov tsis pom zoo "lub nroog kuv." Txhua lub rooj tsav xwm luam tawm (PCB) muaj cov hlau tseem ceeb xws li tooj liab, kub, nyiaj, thiab palladium. Nrog cov txheej txheem ua haujlwm zoo, cov khoom siv hluav taws xob tuaj yeem hloov pauv mus rau cov khoom siv rov siv tau.
PCB Recycling txheej txheem
1. Kev tshem tawm cov khoom: cais cov khoom sib txawv
Thawj kauj ruam hauv PCB rov ua dua yog tshem tawm cov khoom siv hluav taws xob.
Niaj hnub nimno automated dismantling khoom siv tswj hluav taws xob cua sov, feem ntau tswj kub ntawm 120-150 degree. Nyob rau hauv no ntau yam, solder melts zoo, cia lub Cheebtsam mus detach tsis ua thermal deformation ntawm lub substrate. Ib txoj kab rhuav tshem ib leeg yuav tsum muaj kev ua haujlwm tsawg thiab tuaj yeem ua tiav ntau pua kilograms ntawm PCBs ib teev, kom ntseeg tau tias kev ua haujlwm zoo thiab kev ua haujlwm ruaj khov.
2. Crushing Theem: Kev tswj kub kom txo cov khoom decomposition
Tom qab tshem tawm cov khoom, cov seem PCB substrates raug xa mus rau theem crushing.
Ib qho tseem ceeb ntawm kev xav yog kev tsim hluav taws xob thaum lub sij hawm crushing. Qhov kub ntau dhau tuaj yeem hloov cov ntaub ntawv organic hauv cov laug cam. Advanced crushing systems yog nruab nrog kub tswj mechanisms tswj kev ua haujlwm ruaj khov thiab txo qis thermal decomposition.
Cov kev tshawb fawb qhia tias tom qab crushing, kwv yees li 72.77% ntawm cov hlau tseem ceeb yog concentrated nyob rau hauv particle loj li ntawm 0.5 mus rau 2 hli. Cov ntaub ntawv no muab lub hauv paus tseem ceeb rau kev txhim kho cov txheej txheem sib cais tom ntej.
3. Kev sib cais theem: Lub cev txoj kev rau hlau rov qab
Thaum crushed, cov ntaub ntawv raug sib cais kom rov qab tau cov hlau los ntawm cov tsis yog -cov khoom siv hlau.
Cov tshuab niaj hnub no feem ntau vam khom lub cev sib cais, suav nrog:
Sib nqus sib cais:Extracts ferrous hlau xws li hlau thiab npib tsib xee
Eddy Tam sim no sib cais:Sib cais tsis yog-ferrous hlau xws li tooj liab thiab txhuas raws li qhov sib txawv conductivity
Electrostatic Sib cais:Ntxiv refines qhov sib cais ntawm cov khoom zoo
Cov txheej txheem no tsis tas yuav muaj cov tshuaj reagents thiab ua kom tsis muaj kuab paug pov tseg, ua rau lawv nyob ib puag ncig. Nrog optimized configurations, siab rov qab tus nqi ntawm tooj liab thiab lwm yam hlau yuav ua tau tiav.
Kev sib xyaw hlau ntawm khib nyiab PCBs
Cov ntsiab lus hlau ntawm khib nyiab PCB sib txawv nyob ntawm lawv qhov chaw thiab hom. Cov kev tshawb fawb kev kawm muab kev nkag siab txog lawv cov peev txheej:
Kev tshuaj xyuas cov qauv PCB los ntawm e- cov chaw pov tseg hauv Malaysia tau pom cov ntsiab lus tooj liab ntawm kwv yees li 43.60%, nrog rau muaj cov npib tsib xee, kub, thiab hlau.
Lwm cov kev tshawb fawb kwv yees tias txhua tuj ntawm khib nyiab PCBs muaj txog 100-143 kg ntawm tooj liab thiab 0.11-0.56 kg ntawm kub.
Kev tshawb fawb tseem qhia tau tias tooj liab thiab txhuas ua ke suav txog ze li 70% ntawm tag nrho cov ntsiab lus hlau hauv PCBs.
