Sib nqus sib cais yog txheej txheem tseem ceeb hauv ntau qhov kev lag luam, suav nrog mining, recycling, thiab metallurgy. Hauv plawv ntawm cov txheej txheem no yog cov Permanent Magnetic Separator , a device that efficiently isolates ferrous materials from non-ferrous counterparts. Kev nkag siab txog cov yam ntxwv ntawm cov khoom sib nqus mus tas li yog qhov tseem ceeb rau kev ua kom zoo ntawm kev sib cais kev ua haujlwm thiab ua kom cov purity ntawm cov khoom kawg.
Sib nqus sib cais leverages cov khoom sib nqus ntawm cov ntaub ntawv kom cais cov ferrous los ntawm cov khoom tsis-ferrous. Cov ntaub ntawv uas muaj zog magnetic susceptibility yog attracted rau ib magnetic teb, ua rau lawv sib cais los ntawm cov ntaub ntawv uas tsis muaj zog los yog tsis muaj hlau nplaum. Qhov ua tau zoo ntawm cov txheej txheem no feem ntau nyob ntawm cov yam ntxwv ntawm cov hlau nplaum sib nqus siv.
Cov hlau nplaum tas mus li muab qhov chaw sib nqus tas li yam tsis tas yuav muaj cov khoom siv hluav taws xob sab nraud. Cov cwj pwm no ua rau lawv txhim khu kev qha thiab lub zog txuag rau kev ua haujlwm tas mus li. Lub zog thiab ruaj khov ntawm cov hlau nplaum yog qhov tseem ceeb rau kev ua haujlwm zoo ib yam ntawm cov khoom sib cais.
Cov sib nqus sib nqus mus tas li yog tsim los nrog cov yam ntxwv tshwj xeeb uas txhim kho lawv txoj haujlwm thiab tsim nyog rau ntau yam kev siv. Hauv qab no yog qee qhov tseem ceeb tshaj plaws nta:
Qhov sib nqus sib nqus ntawm lub tshuab cais txiav txim siab nws lub peev xwm los nyiam cov khoom ferrous. Cov sib nqus sib nqus mus tas li yog nruab nrog cov hlau nplaum siab siv uas tuaj yeem ntes tau txawm tias cov kab mob ferrous zoo tshaj plaws. Qhov no ua kom muaj qib siab purity hauv cov khoom ua tiav.
Tsim los nrog cov ntaub ntawv muaj zog, cov khoom sib nqus ruaj khov muab kev ua haujlwm ntev thiab tiv taus kev ua haujlwm hnyav. Lawv cov qauv tsim minimizes hnav thiab tsim kua muag, txo qhov kev xav tau ntawm kev saib xyuas tsis tu ncua. Qhov kev ua haujlwm ntev no txhais tau tias txo cov nqi ua haujlwm dhau sijhawm.
Txij li cov hlau nplaum tas mus li tsis tas yuav muaj hluav taws xob los tswj lawv qhov chaw sib nqus, cov khoom sib cais no muaj zog heev. Cov yam ntxwv no ua rau lawv zoo tagnrho rau kev lag luam nrhiav kom txo qis kev siv hluav taws xob thiab kev siv nyiaj ua haujlwm.
Cov sib nqus sib nqus mus tas li muaj ntau yam thiab tuaj yeem ua ke rau hauv ntau theem ntawm kev ua cov khoom. Lawv tsim nyog rau qhov chaw qhuav lossis ntub dej thiab tuaj yeem ua ntau yam ntawm cov khoom siv ntau thiab tsawg.
Los ntawm kev tshem tawm qhov xav tau ntawm cov khoom siv hluav taws xob, cov khoom sib nqus mus tas li yuav txo tau qhov kev pheej hmoo ntawm hluav taws xob. Lawv txoj haujlwm tseem txo qis kev cuam tshuam ib puag ncig los ntawm kev txo qis kev siv hluav taws xob thiab tiv thaiv kev sib kis ntawm cov ntaub ntawv.
Muaj ntau hom kev sib nqus sib nqus mus tas li, txhua tus tsim los rau kev siv tshwj xeeb thiab cov yam ntxwv ntawm cov khoom siv.
Cov separators no muaj lub nruas rotating nruab nrog cov hlau nplaum ruaj khov. Raws li lub nruas rotates, ferrous cov ntaub ntawv yog attracted rau lub magnetic teb thiab sib cais los ntawm cov uas tsis yog-sib nqus kwj. Nruas separators muaj txiaj ntsig zoo rau kev ua haujlwm siab.
Overband separators raug tshem tawm saum cov siv conveyor. Lawv tshem tawm cov kab mob ferrous los ntawm cov khoom ntws, kom ntseeg tau tias cov khoom siv qis qis ua haujlwm yam tsis muaj kev cuam tshuam. Hom no zoo tagnrho rau kev tshem tawm tas li ntawm tramp hlau.
Phaj separators siv cov hlau nplaum sib nqus los ntes cov khoom ferrous los ntawm cov khoom tsis poob los yog slurries. Lawv muaj txiaj ntsig tshwj xeeb rau kev tshem tawm cov kab mob ntawm cov granular lossis hmoov hmoov.
Cov ntaub ntawv tsim kho thiab tsim cov khoom sib nqus sib nqus ruaj khov cuam tshuam rau lawv cov kev ua tau zoo thiab tsim nyog rau cov haujlwm tshwj xeeb.
Cov khoom sib nqus muaj xws li ferrite, neodymium hlau boron (NdFeB), thiab samarium cobalt (SmCo). NdFeB hlau nplaum muaj lub zog sib nqus zoo thiab tsim nyog rau kev ntes cov khoom zoo, thaum cov hlau nplaum ferrite yog tus nqi zoo rau cov kab mob loj.
Lub vaj tse tiv thaiv cov hlau nplaum los ntawm kev puas tsuaj thiab kev sib kis. Siv cov hlau tsis muaj hlau lossis lwm yam khoom tsis sib nqus, cov khoom siv tiv thaiv corrosion ua rau cov khoom sib cais ua kom ntev, tshwj xeeb tshaj yog nyob rau hauv qhov hnyav lossis ntub dej.
Kev ua kom zoo tshaj qhov kev ua tau zoo ntawm cov khoom sib nqus mus tas li muaj ntau yam, suav nrog kev teeb tsa, tus nqi pub, thiab qhov loj me ntawm cov khoom ua tiav.
Qee qhov sib cais tso cai rau kho qhov sib nqus lub zog kom haum rau cov khoom sib txawv. Qhov kev hloov pauv no txhim kho kev sib cais ua haujlwm thoob plaws ntau yam kev siv.
Xaiv cov khoom sib cais nrog lub peev xwm tsim nyog thiab qhov ntev kom ntseeg tau tias cov khoom ntws tau raug tswj kom txaus. Cov khoom siv loj lossis cov khoom tsis zoo tuaj yeem ua rau tsis muaj txiaj ntsig thiab txo kev sib cais zoo.
Cov sib nqus sib nqus mus tas li tau ua haujlwm thoob plaws ntau qhov kev lag luam vim lawv cov txiaj ntsig thiab kev ntseeg tau.
Hauv kev mining, cov khoom sib cais muab cov khoom muaj txiaj ntsig zoo tshaj plaws los ntawm cov ore, txhim kho qhov zoo ntawm cov khoom rho tawm. Lawv kuj tshem tawm cov kab mob ferrous uas tsis xav tau uas tuaj yeem cuam tshuam cov khoom siv.
Cov khoom siv rov ua dua tshiab siv cov khoom sib nqus mus tas li kom rov qab tau cov hlau ferrous los ntawm cov dej khib nyiab. Qhov kev rov qab los no yog qhov tseem ceeb rau kev ruaj ntseg ntawm cov peev txheej thiab txo cov khib nyiab xa mus rau qhov chaw pov tseg.
Hauv cov kev lag luam no, cov khoom sib cais xyuas kom meej tias cov khoom lag luam tsis muaj cov kab mob ferrous, uas tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv lossis cuam tshuam cov khoom lag luam. Kev siv cov ntaub ntawv huv-qib hauv kev tsim khoom sib cais yog qhov tseem ceeb hauv cov ntawv thov no.
Kev saib xyuas kom zoo ntawm cov hlau nplaum ruaj khov yog qhov tseem ceeb rau kev ua haujlwm ruaj khov thiab kev nyab xeeb hauv chaw ua haujlwm.
Kev tshuaj xyuas tsis tu ncua pab txheeb xyuas qhov hnav lossis kev puas tsuaj rau cov khoom sib cais. Kev ntxuav cov hlau nplaum ua kom ntseeg tau tias cov khoom sib nqus tsis tsim, uas tuaj yeem txo qhov ua haujlwm tau zoo.
Cov neeg ua haujlwm yuav tsum ceev faj thaum ua haujlwm ze ntawm cov hlau nplaum muaj zog. Khaws cov khoom siv hluav taws xob thiab cov khoom siv sib nqus ntawm qhov chaw nyab xeeb tiv thaiv kev sib tsoo thiab cov khoom puas.
Kev txhim kho thev naus laus zis tau ua rau muaj kev txhim kho ntawm cov khoom siv hluav taws xob ntau dua thiab tshwj xeeb sib nqus sib nqus.
Kev taw qhia ntawm cov hlau nplaum tsawg hauv ntiaj teb, xws li cov hlau nplaum neodymium, tau ua kom muaj zog sib nqus muaj nyob hauv cov khoom sib cais. Qhov kev txhim kho no tso cai rau kev ntes ntawm ultra-fine ferrous hais.
Cov khoom sib cais niaj hnub no tuaj yeem suav nrog kev siv lub tshuab ntxhua khaub ncaws uas tshem tawm cov khoom ferrous uas tsis tas yuav muaj kev cuam tshuam los ntawm phau ntawv. Cov yam ntxwv no txhim kho kev nyab xeeb thiab txo qis sijhawm.
Kev siv cov khoom sib nqus sib nqus tau zoo tuaj yeem muaj txiaj ntsig zoo rau kev lag luam thiab ib puag ncig.
Los ntawm kev txhim kho cov khoom purity thiab tiv thaiv cov khoom siv downstream los ntawm kev puas tsuaj, cov khoom sib cais txo cov nqi ua haujlwm. Lub neej ntev thiab kev saib xyuas tsis tshua muaj yuav ua rau muaj kev txuag nyiaj ntxiv.
Cov txheej txheem sib cais ua tau zoo pab kom rov qab tau cov hlau tseem ceeb, txo qhov kev xav tau rau kev ua haujlwm tsuas yog tshiab. Qhov kev txuag ntawm cov peev txheej no ua ke nrog cov hom phiaj kev txhim kho kom ruaj khov.
Daim ntawv thov tiag tiag hauv ntiaj teb qhia txog kev ua tau zoo ntawm cov hlau nplaum ruaj khov nyob rau hauv ntau yam lag luam.
Ib qho khoom siv rov ua dua tshiab ua ke Permanent Magnetic Separator units rau hauv lawv cov kab ua haujlwm, ua rau 20% nce hauv ferrous hlau rov qab. Qhov kev txhim kho no ua rau muaj txiaj ntsig ntau dua thiab txo kev cuam tshuam ib puag ncig.
Lub tuam txhab kws tshuaj tau siv cov khoom sib nqus mus tas li kom tshem tawm cov kab mob ferrous los ntawm lawv cov khoom. Qhov tshwm sim tau txhim kho cov khoom muaj kev nyab xeeb thiab ua raws li cov cai nruj kev lag luam.
Kev sib nqus sib nqus mus tas li yog cov cuab yeej tseem ceeb hauv cov txheej txheem sib nqus sib nqus thoob plaws ntau lub lag luam. Lawv cov yam ntxwv, xws li kev sib nqus sib nqus, ua haujlwm ntev, lub zog ua haujlwm, thiab ntau yam, pab txhawb rau lawv cov txiaj ntsig thiab kev siv dav. Kev nkag siab txog cov yam ntxwv no tso cai rau cov koom haum xaiv cov cuab yeej tsim nyog rau lawv cov kev xav tau tshwj xeeb, ua rau txhim kho kev ua tau zoo, txuag nqi, thiab cov txiaj ntsig ib puag ncig. Raws li kev siv thev naus laus zis, cov sib nqus sib nqus mus tas li yuav hloov zuj zus mus ntxiv, muab kev ua tau zoo dua thiab kev ruaj khov.