Kev Taw Qhia Txog Cov Txheej Txheem Cog Khoom Siv Thee
Cov txheej txheem ntawm lub Hoobkas npaj thee muaj ntau kauj ruam uas tsim los txhim kho cov thee nyoos ua ntej xa mus rau kev lag luam. Thee tuaj txog ntawm lub Hoobkas sib xyaw nrog cov khoom tsis xav tau xws li pob zeb, tshauv, thiab sulfur. Lub hom phiaj tseem ceeb yog tshem tawm cov khoom tsis huv no, tsim cov khoom thee muaj nqis dua, huv dua uas tsim nyog rau kev tsim hluav taws xob thiab kev siv hauv kev lag luam.
Kev tuav thiab npaj theeCov haujlwm ntawm cov nroj tsuag pib nrog kev tuav cov thee, qhov twg cov khoom raug thauj mus los, khaws cia, thiab ntsuas qhov loj. Cov kauj ruam ntawm cov txheej txheem npaj thee feem ntau suav nrog kev tshuaj ntsuam, kev tsoo, kev ntxuav, thiab kev sib cais. Txhua theem tsom mus rau cov khoom tsis huv tshwj xeeb lossis tsom mus rau qhov loj me kom zoo dua qub.
Ib qho tseem ceeb ntawm kev ua cov thee yog kev sib cais thee. Cov kauj ruam no siv cov khoom siv lub cev - feem ntau yog qhov ceev - los sib txawv thee thiab gangue. Gangue yog hais txog cov zaub mov uas tsis yog thee sib xyaw hauv cov khoom noj nyoos, uas yuav tsum tau tshem tawm kom txhim kho tus nqi calorific thiab txo cov pa phem. Kev ua haujlwm ntawm kev tshem tawm gangue hauv kev ua cov thee vam khom rau kev tswj qhov ceev hauv cov khoom sib cais.
Kev ntsuas qhov ceev yog qhov tseem ceeb heev rau kev ua haujlwm ntxuav thee. Kev tswj qhov ceev ntawm cov tshuaj uas zoo tshaj plaws ua kom cov txheej txheem sib cais, xws li kev sib cais nruab nrab uas tuab, ua haujlwm tau zoo.lub ntsuas qhov ceev hauv onlinerau cov thee slurry tso cai rau cov neeg teb xov tooj saib xyuas thiab tswj cov khoom nruab nrab, txo qhov poob ntawm cov thee huv thiab pov tseg.
Kev Sib Cais Xov Xwm Hnyav
*
Kev siv tshuab thee huv thiab cov qauv txheej txheem tsim thee huv yuav tsum muaj cov zis zoo thiab ruaj khov. Kev tswj qhov ceev kom raug ua rau kev sib cais zoo dua, ua rau cov thee huv tau ntau dua thiab pov tseg cov feem me me uas kub hnyiab tau tsawg dua. Cov txheej txheem siv thee thiab kev tsim cov nroj tsuag ntxuav thee tau koom ua ke nrog cov txheej txheem ntsuas qhov ceev kom tswj tau zoo dua.
Cov lus tseem ceeb siv hauv kev ua haujlwm ntawm cov chaw tsim khoom siv thee suav nrog:
- Gangue: Cov zaub mov uas tsis kub hnyiab thiab pob zeb sib xyaw nrog cov thee nyoos.
- Cov thee huv: Cov khoom tom qab tshem tawm cov khoom tsis huv, nrog rau cov tshauv thiab cov sulfur tsawg dua.
- Kev sib cais thee: Cov txheej txheem siv los sib txawv thee thiab gangue raws li cov khoom xws li qhov ceev.
Cov txheej txheem ua cov thee siv tau tam sim no siv ntau yam khoom siv, suav nrog cov chav dej nruab nrab, cov ntxaij vab tshaus, thiab cov tshuab tswj tsis siv neeg. Kev npaj thee zoo ua kom cov nroj tsuag ua haujlwm tau zoo, ua raws li cov cai ib puag ncig, thiab txhim kho kev lag luam ntawm cov khoom thee.
Cov Ntsiab Lus ntawm Kev Ncua Nruab Nrab Hnyav
Cov tshuaj nruab nrab hnyav yog lub hauv paus tseem ceeb ntawm cov txheej txheem cog thee, ua rau muaj kev sib cais ntawm cov thee ntawm cov gangue thiab lwm yam impurities. Cov txheej txheem no siv lub hauv paus ntsiab lus tias cov ntaub ntawv ntawm ntau qhov sib txawv yuav ua haujlwm sib txawv thaum muab tso rau hauv cov kua nruab nrab ntawm qhov sib txawv.
Kev Txhais thiab Lub Luag Haujlwm hauv Kev Sib Cais Thee
Hauv cov chaw ua haujlwm thiab npaj cov thee, cov tshuaj nruab nrab hnyav yog cov kua sib tov - feem ntau yog dej sib xyaw nrog cov zaub mov sib xyaw ua ke - siv los tsim cov slurry ntom ntom. Cov thee nyoos raug muab tso rau hauv cov tshuaj, qhov twg cov thee qis dua ntab, thiab cov gangue ntom ntom dua poob. Qhov kev sib txawv ntom ntom no tsim lub hauv paus ntawm cov txheej txheem sib cais thee thiab txhawb nqa cov thev naus laus zis niaj hnub huv si, tso cai rau kev tshem tawm cov khoom tsis xav tau thiab txhim kho cov txheej txheem tsim cov thee huv si. Kev sib cais ntom ntom yog suav tias yog ib kauj ruam tseem ceeb ntawm cov txheej txheem ntxuav thee, ua kom cov thee rov qab tau zoo tshaj plaws los ntawm cov txheej txheem ua cov thee tsim tau zoo.
Hom Khoom Siv
Kev ncua magnetiteyog qhov nruab nrab tshaj plaws hauv kev ua haujlwm ntawm cov txheej txheem ua kom cov thee zoo. Magnetite, ib qho mineral uas ntom thiab tsis muaj tshuaj lom neeg, raug sib tsoo zoo thiab dai rau hauv dej. Cov slurry uas tshwm sim muab qhov ceev hloov kho tau, feem ntau ntawm 1.3 thiab 1.8 g / cm³, tsim nyog rau kev sib cais ntawm cov feem sib txawv ntawm cov thee thiab kev tshem tawm gangue hauv kev ua cov thee. Kev ruaj khov thiab rov qab tau ntawm magnetite ua rau nws tsim nyog rau kev lag luam thiab kev ua haujlwm rau kev tsim cov nroj tsuag ntxuav thee, nrog cov sib cais sib nqus rov qab magnetite rau kev siv dua.
Lwm cov xov xwm tau siv rau hauv cov xwm txheej tshwj xeeb, xws li ferrosilicon, galena, lossis barite, txawm hais tias cov no tsis tshua muaj vim yog tus nqi siab dua lossis kev txwv kev ua haujlwm. Kev xaiv ntawm cov xov xwm nyob ntawm lub hom phiaj ntawm cov nroj tsuag, kev lag luam txheej txheem, thiab qhov ntau thiab tsawg xav tau.
Cov Khoom Siv Lub Cev Muaj Feem Xyuam Rau Kev Ua Haujlwm Zoo
Kev ua tau zoo ntawm cov txheej txheem npaj cov thee nyob ntawm ntau yam khoom tseem ceeb ntawm cov khoom siv hnyav nruab nrab:
- Qhov Ceev:Qhov nruab nrab qhov ceev (ρ) raug tswj hwm kom meej kom ua rau muaj kev sib cais xaiv tau. Cov neeg teb xov tooj feem ntau tswj ρ hauv qhov ntau thiab tsawg, sib npaug nrog qhov ceev ntawm cov thee huv thiab cov gangue. Piv txwv li, qhov ceev nruab nrab ntawm 1.5 g / cm³ tso cai rau cov thee (qhov ceev ~ 1.2–1.5 g / cm³) ntab thaum tsis lees txais cov pob zeb ntom dua.
- Qhov nplaum:Qhov viscosity ntawm cov tshuaj uas raug ncua yuav cuam tshuam rau qhov kev sib cais ntawm cov thee. Qhov viscosity siab yuav ua rau cov khoom me me tsis txav mus los thiab txo qhov ntse ntawm kev sib cais, thaum qhov viscosity qis ua rau kev faib ua pawg sai thiab zoo.
- Kev Ruaj Ntseg:Kev ruaj khov nruab nrab yog qhov tseem ceeb kom tiv thaiv kev sib sau ua ke sai ntawm cov khoom me me, uas tuaj yeem hloov pauv qhov ceev ntawm cov slurry thiab ua rau kev sib cais tsis zoo. Kev saib xyuas ntau zaus, pab los ntawm lub ntsuas qhov ceev online rau cov slurry thee xws liLonnmeter, pab tswj kom muaj kev ncua zoo tshaj plaws.
- Kev Faib Tawm Qhov Loj ntawm Cov Khoom Me Me:Cov khoom me me uas me dua muab kev ruaj khov zoo dua tab sis yuav nyuaj rau rov qab zoo. Cov khoom loj dua poob sai sai, xav tau kev tswj hwm cov txheej txheem thiab kev xaiv cov khoom siv hauv kev ua haujlwm ntawm cov chaw ua thee.
Kev ua tib zoo tswj cov khoom no txhais tau tias kev ua tiav ntawm kev siv thee thiab kev ntseeg siab ntawm kev ua haujlwm ntawm lub chaw ua haujlwm npaj thee. Cov khoom siv ntxuav thee, suav nrog cov cua daj cua dub nruab nrab, cov dab dej, thiab cov nruas, tau tsim los tswj cov khoom nruab nrab xav tau, xyuas kom meej tias cov kauj ruam ua tiav thiab ruaj khov ntawm cov txheej txheem npaj thee.
Ib qho piv txwv zoo yog kev ua haujlwm ntawm lub cyclone nruab nrab ntom ntom: Cov thee pub nkag mus rau hauv lub cyclone, thiab nyob rau hauv lub zog centrifugal, cov khoom me me stratify raws li qhov ceev hauv lub magnetite suspension. Kev kho qhov ceev nruab nrab, lub cyclone txoj kab uas hla, thiab lub siab pub tso cai rau cov neeg ua haujlwm kom tsom mus rau qhov sib cais txiav qhov ntau thiab tsawg (d₅₀), kho cov kev ua haujlwm ntxuav thee kom haum rau kev ua lag luam lossis cov nroj tsuag xav tau.
Los ntawm kev xaiv thiab tswj cov khoom hnyav nruab nrab zoo, kev ntxuav thiab kev ua kom zoo ntawm cov thee ua tiav qhov ua tau zoo, txhawb nqa cov thev naus laus zis huv thiab kev ua haujlwm ntawm cov nroj tsuag ruaj khov.
Qhov Tseem Ceeb ntawm Kev Ntsuas Qhov Ceev Kom Tseeb
Kev tswj kom muaj qhov ceev ntawm cov tshuaj uas nyob hauv cov txheej txheem ua cov thee yog qhov tseem ceeb rau cov txheej txheem sib cais thee zoo thiab cov thee huv siab. Qhov sib txawv me me—tsuas yog 0.01 g/cm³—tuaj yeem ua rau cov txiaj ntsig poob ntawm 1–3% thiab cov tshauv nce mus txog 0.5% hauv cov khoom thee huv. Qhov tseeb ntawm no txiav txim siab qhov txiav-point, uas txhais tau tias cov khoom me me tshaj tawm rau cov thee lossis cov kwj dej pov tseg. Yog li ntawd, kev ntsuas qhov ceev tseeb cuam tshuam ncaj qha rau qhov ua tau zoo ntawm cov khoom siv gangue tsis zoo raug tshem tawm thaum lub sijhawm ua cov thee thiab kev ntxuav.
Kev tswj qhov ceev kom raug txo qhov yuam kev tshem tawm cov khib nyiab hauv kev ua cov thee, ua rau kev siv cov peev txheej zoo dua. Thaum qhov ceev nruab nrab raug teeb tsa siab dhau, cov thee muaj nqis tuaj yeem raug pov tseg ua pov tseg tsis raug, txo qhov kev tsim cov thee huv tag nrho thiab ua rau cov khib nyiab ntau ntxiv. Yog tias qhov ceev tsawg dhau, ntau cov khib nyiab xaus rau hauv cov khoom thee, ua rau cov tshauv ntau ntxiv thiab txwv tus nqi ntawm cov thev naus laus zis thee huv. Kev ua haujlwm ntawm cov chaw npaj thee tsis siv neeg uas muaj lub ntsuas ceev online rau cov slurry thee tau ua pov thawj tias txo cov nqi tsis raug los ntawm 15-20%, txhim kho kev siv cov peev txheej thiab tswj cov khoom zoo ruaj khov.
Kev tswj hwm qhov ceev kom raug kuj tseem ceeb rau kev lav phib xaub ib puag ncig hauv kev tuav thiab npaj cov thee. Kev ua qias tuaj tsawg dua yuav txo qhov ntim ntawm cov khib nyiab uas yuav tsum tau tuav thiab pov tseg, ua kom zoo dua qhov chaw siv cov peev txheej thiab txo qhov cuam tshuam rau ib puag ncig. Cov khoom thee ntshiab dua ua rau muaj cov pa phem tsawg dua tom qab hlawv, ua raws li cov hom phiaj niaj hnub ntawm cov txheej txheem tsim cov thee huv. Qhov ceev ruaj khov kuj pab tswj cov plua plav: thaum cov tshauv thiab cov hmoov av raug cais tawm zoo thiab txwv rau cov kwj dej pov tseg, cov plua plav hauv huab cua thaum tuav txo qis, txo cov kev pheej hmoo rau cov neeg ua haujlwm thiab thaj chaw ib puag ncig.
Cov kev tshawb fawb qhia tau tias kev kho kom raug thiab kev saib xyuas lub sijhawm tiag tiag ntawm qhov ceev ntawm cov khoom siv hauv cov chaw ua cov thee tiv thaiv kev hloov pauv ntawm qhov ceev, ua kom qhov nruab nrab ntawm cov khoom sib xyaw hauv ± 0.005 g / cm³ ntawm cov nqi uas tau teem tseg. Qhov kev sib xws no txhawb nqa ob qho tib si cov qauv tsim ntawm cov chaw ntxuav thee thiab kev txhim kho tas mus li hauv kev ua haujlwm sib cais thee. Cov chaw siv cov cuab yeej ntsuas digital qhia txog cov tshauv qis dua - 0.3–0.6% piv rau cov uas siv cov txheej txheem ua cov thee tes.
Kev ntsuas qhov ceev kom raug yog lub hauv paus rau kev ua tiav qhov zoo tshaj plaws ntawm cov thee huv, kev tshem tawm cov khib nyiab zoo hauv kev ua cov thee, thiab kev tswj hwm ib puag ncig zoo thoob plaws hauv cov txheej txheem npaj cov thee. Lub luag haujlwm tseem ceeb no qhia txog qhov tseem ceeb ntawm cov txheej txheem saib xyuas siab heev thiab cov txheej txheem calibration nruj hauv kev ua haujlwm npaj cov thee zoo.
Cov Txheej Txheem rau Kev Ntsuas Qhov Ceev hauv Cov Chaw Ua Khoom Siv Thee
Cov Txuj Ci Ib Txwm
Kev kuaj tes thiab kev tshuaj xyuas hauv chaw kuaj mob yog lub hauv paus tseem ceeb ntawm kev tswj cov txheej txheem ntawm cov nroj tsuag npaj thee. Hauv cov txheej txheem no, tus neeg teb xov tooj sau cov qauv ntawm cov khoom nruab nrab lossis cov thee slurry ntawm lub sijhawm teem tseg los ntawm cov ntsiab lus tshwj xeeb hauv lub kaw lus. Cov qauv raug thauj mus rau chav kuaj mob hauv tsev rau kev txiav txim siab qhov ceev, siv cov txheej txheem hydrometer lossis gravimetric.
Txoj kev ntsuas hydrometer siv dav rau kev ntsuam xyuas sai. Ib qho qauv ntawm cov kua dej raug nchuav rau hauv lub tog raj kheej calibrated, thiab lub hydrometer raug maj mam immersed. Qhov ceev ntawm cov kua dej yog nyeem ntawm cov kua meniscus, feem ntau xav tau kev kho qhov kub thiab txias kom raug. Txoj hauv kev no yog ceev tab sis feem ntau muaj ntau yam teeb meem: cov khoom me me, cov npuas, lossis kev pom tsis zoo hauv cov qauv turbid yuav ua rau cov txiaj ntsig tsis sib xws. Cov txheej txheem ua haujlwm yog qhov hloov pauv tseem ceeb; kev nyeem ntawv tuaj yeem hloov pauv raws li qhov du ntawm lub hydrometer ntab lossis yog tias lub tog raj kheej tsis muab tso rau ntawm qhov chaw tiaj tus. Hydrometers feem ntau ua tiav qhov tseeb ntawm ± 0.005 txog ± 0.01 qhov ceev ntawm cov khoom, ua rau lawv tsim nyog rau kev kuaj xyuas sai tab sis tsis yog rau kev tswj hwm nruj, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej ntawm cov kua dej viscous lossis cov kua dej zoo. Cov kev txwv no tuaj yeem cuam tshuam rau cov txheej txheem sib cais thee thiab cov txheej txheem tsim cov thee huv si yog tias tsis pom.
Txoj kev ntsuas qhov sib npaug (gravimetric) siv lub pycnometer lossis lub thawv zoo sib xws. Lub thawv raug ntim nrog cov khoom siv thiab hnyav rau ntawm lub thawv ntsuas analytical. Tus kws tshawb fawb rho tawm qhov hnyav ntawm lub thawv khoob thiab faib los ntawm qhov ntim ntawm lub thawv kom paub qhov ceev. Thaum ua tiav zoo, txoj kev no ua tiav qhov tseeb dua (± 0.001 units), ua rau nws muaj txiaj ntsig zoo rau kev txheeb xyuas cov txheej txheem thiab kev tshawb fawb txog kev siv thee huv. Txawm li cas los xij, nws qeeb dua thiab ua rau muaj kev ua yuam kev - cov pa npuas, qhov kub tsis sib xws, thiab kev sau tsis tiav tuaj yeem hloov pauv cov txiaj ntsig. Ntxiv mus, cov txheej txheem xav tau kev ntsuas qhov hnyav ntawm cov khoom siv, thiab cov qauv sawv cev yuav tsum tau khaws cia thoob plaws kev tuav kom tiv thaiv kev xaus lus tsis raug txog cov txheej txheem beneficiation thee.
Cov Kev daws teeb meem ntsuas qhov ceev hauv online tiag tiag
Cov chaw tsim khoom siv thiab npaj cov thee niaj hnub no vam khom ntau ntxiv rau kev ntsuas qhov ceev hauv online los saib xyuas cov txheej txheem ntawm cov chaw tsim khoom siv thee. Lub hauv paus ntsiab lus ua haujlwm ntawm cov khoom siv no suav nrog kev ntsuas qhov ceev ntawm cov khoom siv suspension tas mus li, lub sijhawm tiag tiag - feem ntau yog siv cov thev naus laus zis microwave, ultrasonic, lossis nuclear. Piv txwv li, lub ntsuas qhov ceev hauv online Lonnmeter siv cov sensors hluav taws xob uas tau teeb tsa ncaj qha rau hauv kab slurry thee. Cov khoom siv no tso tawm cov cim los ntawm cov slurry thiab ntsuas seb lawv hloov pauv li cas los ntawm qhov muaj thiab kev sib sau ua ke ntawm cov khoom khov, muab kev nyeem tam sim ntawd ntawm qhov ceev ntawm slurry.
Kev koom ua ke rau hauv cov kauj ruam dav dua ntawm cov txheej txheem npaj thee yog qhov yooj yim: cov ntsuas qhov ceev online pub cov ntaub ntawv txuas ntxiv mus rau hauv cov kab ke tswj hwm ntawm cov nroj tsuag. Cov neeg ua haujlwm tuaj yeem saib xyuas qhov ceev ntawm cov khoom hnyav hauv cov thoob sib cais lossis tswj qhov sib piv ntawm magnetite lossis ferrosilicon hauv lub sijhawm tiag tiag. Nrog cov voj voog tawm tswv yim tsis siv neeg, cov nroj tsuag tuaj yeem hloov kho qhov ntxiv ntawm cov khoom nruab nrab, kev sib xyaw dej, lossis cov ntsiab lus sib cais yuav luag tam sim ntawd - txo qis kev cuam tshuam ntawm tus neeg ua haujlwm thiab txo qis kev cia siab rau kev kuaj tes.
Cov txiaj ntsig ntawm kev siv tshuab, cov ntsuas qhov ceev online yog qhov tseem ceeb heev. Kev saib xyuas tiag tiag ua kom muaj kev tswj hwm tas li ntawm kev sib cais cov khoom nruab nrab ntom ntom, uas yog theem tseem ceeb hauv cov txheej txheem ua cov thee. Kev kuaj pom tam sim ntawd ntawm qhov hloov pauv ntawm qhov ceev ceev pab tiv thaiv kev tso tsis raug ntawm cov khoom muaj nqis lossis nce cov khib nyiab, khaws cov khoom zoo thiab cov txiaj ntsig. Nrog cov ntaub ntawv txuas ntxiv mus, kev ua haujlwm ntawm cov chaw npaj thee ua haujlwm tau zoo dua, txhawb nqa cov hom phiaj thev naus laus zis huv thiab txhim kho kev ntseeg siab ntawm cov txheej txheem.
Cov khoom siv zoo li Lonnmeterlub ntsuas qhov ceev hauv onlinetau ua pov thawj nws txoj kev ua haujlwm zoo hauv kev tswj hwm qhov ruaj khov ntawm cov khoom siv thiab kev ntseeg siab ntawm cov txheej txheem - cov yam ntxwv tseem ceeb rau kev ua kom zoo dua cov txheej txheem ntxuav thee thiab kev tshem tawm cov kab mob hauv kev ua cov thee. Tsis zoo li cov txheej txheem ib txwm muaj, cov txheej txheem online tshem tawm cov qauv qeeb, txo qhov yuam kev ntawm tib neeg, thiab muab cov ntaub ntawv siab. Kev ntsuas qhov ceev tsis siv neeg kuj tso cai rau kev teb tam sim ntawd rau qhov tsis zoo, txhawb kev tswj hwm nruj dua ntawm cov txheej txheem npaj cog thee thiab txhim kho lub zog thiab kev ua haujlwm zoo hauv kev tsim cov nroj tsuag ntxuav thee.
Txawm hais tias kev kuaj tes thiab kev tshuaj xyuas hauv chaw kuaj mob tseem ceeb rau kev ntsuas thiab kev daws teeb meem, kev txav mus rau lub ntsuas qhov ceev hauv online rau cov ntawv thov slurry thee cim qhov kev nce qib tseem ceeb hauv cov khoom siv cog ua thee thiab kev ua haujlwm cog ua thee niaj hnub.
Cov Khoom Siv Tseem Ceeb thiab Cov Txuj Ci hauv Kev Tswj thiab Kev Npaj Thee
Cov chaw tsim khoom siv thiab npaj cov thee niaj hnub no vam khom cov khoom siv tshwj xeeb thiab cov thev naus laus zis sib xyaw ua ke kom ua tiav cov thee zoo. Kev tsoo, kev tshuaj ntsuam, kev ntxuav, thiab kev tswj qhov ceev yog lub hauv paus ntawm cov txheej txheem tsim cov thee thiab cuam tshuam ncaj qha rau kev siv cov thev naus laus zis huv thiab kev tshem tawm cov kab mob zoo hauv kev ua cov thee.
Cov Crushers, Screens, thiab Washing Circuits
Cov tshuab tsoo yog qhov tseem ceeb rau kev txo qhov loj me hauv cov txheej txheem npaj cov thee. Cov tshuab tsoo thee siab heev, xws li cov tshuab ntsuas, faib cov thee khiav ntawm kuv mus rau hauv cov qib loj me ua ntej ntxuav. Cov tshuab ntsuas siv cov yob sib txawv, sib phim qhov ceev ntawm cov thee nrog cov dej ntws kom txwv tsis pub tsoo tsis tsim nyog. Cov txheej txheem no txo kev tsim cov khoom me me, uas tuaj yeem cuam tshuam kev sib cais hauv qab thiab txo cov nqi rov qab. Piv txwv li, cov thev naus laus zis niaj hnub no txo cov kev rov ua dua hauv theem tsoo, xa cov khoom me me sib npaug zoo dua uas tsim nyog rau kev sib cais los ntawm cov voj voog ntxuav thee thiab cov kab ke nruab nrab.
Cov ntxaij lim dej ua raws li theem kev sib tsoo, cais cov thee ua tej daim me me rau cov voj voog ntxuav. Kev tshuaj ntsuam zoo ua kom cov voj voog ntxuav, xws li cov nruas nruab nrab hnyav thiab cov cua daj cua dub faib tawm, tau txais cov khoom noj loj zoo tshaj plaws. Cov voj voog no vam khom qhov kev faib tawm qhov loj me ntawm cov khoom me me uas tsim los ntawm sab saud. Kev tshuaj ntsuam kom zoo txhawb nqa cov txheej txheem sib cais thee zoo thiab kev rov qab tau cov khoom huv dua.
Cov voj voog ntxuav, suav nrog cov chav dej nruab nrab thiab cov cua daj cua dub, yog qhov tseem ceeb rau cov txheej txheem ntxuav thee. Cov kab ke no siv qhov sib txawv ntawm qhov ceev ntawm thee thiab gangue, ua rau muaj kev sib cais meej. Qhov ua tau zoo ntawm cov txheej txheem ua cov thee no nyob ntawm qhov sib xws ntawm qhov loj ntawm cov khoom noj thiab qhov ruaj khov ntawm qhov ceev nruab nrab, ob qho tib si tsim los ntawm kev xaiv thiab ua haujlwm ntawm cov crusher thiab screen kom raug.
Cov Khoom Siv Tswj Xyuas Nruab Nrab thiab Qhov Ceev
Kev tswj qhov nruab nrab ntawm qhov ceev hauv lub voj voog ntxuav yog qhov tseem ceeb rau kev sib cais thee zoo tshaj plaws. Cov khoom siv tswj qhov ceev xws li lub rooj sib tw ceev, cov ntsuas qhov ceev, thiab cov ntsuas qhov ceev online rau cov slurry thee txuas ntxiv saib xyuas thiab kho qhov ceev ntawm cov khoom nruab nrab hauv lub sijhawm tiag tiag. Lub Lonnmeter, lub ntsuas qhov ceev online rau cov slurry thee, qhia txog kev siv no, muab cov lus teb tam sim ntawd kom tswj tau qhov nruab nrab ntawm qhov ceev hauv qhov kev kam rau nqaim. Qib kev tswj hwm no cuam tshuam loj heev rau qhov zoo ntawm cov khoom thiab kev ua haujlwm sib cais, muab cov ntaub ntawv rau cov neeg ua haujlwm kom ua tau zoo rau kev tswj hwm kev ua haujlwm ruaj khov hauv cov txheej txheem cog kev npaj thee.
Cov qhov dej cais thiab cov qhov dej hloov pauv sib koom tes ua kom cov dej ntws ntawm lub cev sib koom ua ke, ua rau muaj kev tswj hwm qhov ntxiv, rov qab, thiab faib cov khoom nruab nrab kom raug. Cov ntsiab lus tswj hwm no ua kom cov txheej txheem sib cais tseem sib xws, txo cov khoom poob thiab txhawb nqa cov txheej txheem tsim cov thee huv.
Cov Sensors, Valves, thiab Cov Tshuab Tswj Xyuas Tsis Siv Neeg
Cov sensors tseem ceeb heev rau kev ua haujlwm ntawm cov chaw ua thee niaj hnub no. Lawv saib xyuas cov yam ntxwv tseem ceeb xws li qhov ceev ntawm cov slurry, cov nqi ntws, qhov siab, thiab qhov loj ntawm cov khoom me me thoob plaws hauv cov txheej txheem ua kom cov thee zoo. Cov ntaub ntawv no muab cov kev nkag siab uas siv tau rau kev hloov kho tes thiab kev hloov kho tsis siv neeg kom tswj tau qhov ruaj khov ntawm cov txheej txheem.
Cov txheej txheem tswj tsis siv neeg sib xyaw cov ntaub ntawv sensor, qhov chaw ntawm lub valve, thiab cov lus teb ntawm cov khoom siv los ua kom zoo dua qhov xwm txheej sib cais. Cov txheej txheem niaj hnub no kho qhov nruab nrab ntawm qhov ceev, tswj kev siv dej tiebreaker, thiab sib npaug ntawm kev rov ua dua kom zoo, txo qhov kev cuam tshuam tes. Kev tswj tsis siv neeg ua rau cov nroj tsuag muaj peev xwm ua haujlwm tau zoo dua, cov khoom tsim tau, thiab kev ua haujlwm sib xws thaum txo lub sijhawm tsis ua haujlwm los ntawm kev saib xyuas qhov xwm txheej thiab kev ceeb toom txij nkawm.
Cov li qub, uas sib koom tes los ntawm cov tshuab tsis siv neeg, tswj tau qhov kev tswj hwm zoo thiab hloov pauv tau rau txhua qhov dej ntws - kev xa cov thee nyoos, kev ncig nruab nrab, thiab kev ntxiv dej. Txoj hauv kev dav dav no ua kom txhua qhov kev ua haujlwm ntawm chav tsev - kev tsoo, kev tshuaj ntsuam, kev ntxuav - ua haujlwm ua ke, txhawb nqa kev tsim cov chaw ntxuav thee siab heev thiab kev teeb tsa cov khoom siv ua haujlwm thee zoo.
Kev tsim qauv niaj hnub no ua rau ob qho tib si kev sib cais thee thiab kev txo cov hmoov av, ua kom muaj txiaj ntsig zoo dua thiab cov qauv kev nyab xeeb zoo dua thoob plaws hauv lub Hoobkas tuav thiab npaj thee.
Cov Yam Cuam Tshuam Rau Qhov Ceev Nruab Nrab Hnyav
Cov tshuaj ncua nruab nrab ntom ntom siv thoob plaws cov chaw npaj thee los cais cov thee tawm ntawm cov gangue, tswj cov khoom zoo thiab cov nqi rov qab. Qhov ntom ntom ntawm cov tshuaj ncua no raug cuam tshuam los ntawm ntau yam tseem ceeb:
Kev Faib Tawm Qhov Loj ntawm Cov Thee thiab Gangue
Qhov kev faib tawm ntawm cov khoom me me (PSD) ntawm magnetite lossis ferrosilicon ncaj qha ua rau lub zog ruaj khov thiab qhov ceev ntawm cov khoom siv. Cov khoom me me, tshwj xeeb tshaj yog cov uas muaj qhov loj dua 10 microns, ua rau lub zog ruaj khov ntawm cov khoom siv los ntawm kev txo cov nqi sib xyaw thiab txhawb kev sib cuam tshuam colloidal. Qhov no ua kom cov khoom nruab nrab tswj tau qhov ceev sib npaug thaum lub sijhawm sib cais hauv cov txheej txheem npaj thee. Txawm li cas los xij, cov khoom siv uas muaj cov khoom me me tuaj yeem ua rau viscous, ua rau kev nqus thiab kev ncig nyuaj. Qhov sib piv, cov khoom siv ntxhib ntau dhau yuav sib xyaw sai sai, ua rau muaj kev faib cov khoom ntom ntom thiab kev sib cais thee tsis zoo. PSD zoo tshaj plaws xav tau kev sib xyaw ua tib zoo, feem ntau saib xyuas thiab kho kom raug siv cov khoom siv tshwj xeeb xws li cov ntsuas qhov ceev online rau cov thee slurry, xws li Lonnmeter, uas txhawb nqa kev ua haujlwm ntawm cov nroj tsuag npaj thee thiab ua kom cov txheej txheem ua haujlwm zoo tshaj plaws.
Cov Khoom Siv Nruab Nrab thiab Rheology
Cov khoom sib xyaw ua ke ntawm cov khoom nruab nrab—feem ntau yog magnetite lossis ferrosilicon—txiav txim siab qhov ceev thiab tus cwj pwm rheological uas ua tau. Qhov muaj cov nplua nplua ua rau viscosity thiab kev ntxhov siab ntawm cov zis, uas tuaj yeem ua rau muaj kev cov nyom rau kev tuav thiab kev ncig. Yog tias muaj cov nplua nplua ntau dhau, qhov ceev yuav poob qis, thiab yuav tsum ntxiv ntau cov khoom nruab nrab, cuam tshuam rau cov nqi ua haujlwm. Kev sim rheological hauv xyoo tas los no qhia tau hais tias PSD zoo (nrog rau qhov sib piv nruab nrab ntawm cov nplua nplua qis dua 10 micron) sib npaug qhov ceev nrog viscosity tswj tau, ua kom ntseeg tau tias cov txheej txheem ntxuav thee sib xws thaum txhawb nqa cov txheej txheem tsim cov thee huv. Cov nroj tsuag kho cov khoom nruab nrab dynamically kom ua tiav cov hom phiaj ceev, feem ntau ntawm 1.3 thiab 1.5 g / cm³ rau feem ntau cov thee tuav thiab npaj cov txheej txheem cog.
Cov Kev Ntsuas Ua Haujlwm ntawm Cov Hoobkas
Kev ua haujlwm txhua hnub ntxiv cuam tshuam rau qhov ceev ntawm cov khoom nruab nrab uas raug tshem tawm. Qhov ceev ntawm kev pub noj tswj qhov ntim thiab kev faib tawm ntawm cov khoom khov thiab cov kua uas nkag mus rau hauv cov voj voog sib cais. Qhov ceev ntawm kev pub noj ntau dua tuaj yeem ua rau qhov concentration ntawm cov khoom nruab nrab tsis sib haum, ua rau muaj kev hloov pauv ntawm qhov ceev yog tias tsis tau them rov qab. Kev co yog qhov tseem ceeb rau kev khaws cov khoom me me uas raug tshem tawm thiab tiv thaiv kev poob qis, tab sis kev co ntau dhau tuaj yeem tsim cov khoom me me ntau dhau, ua rau viscosity nce siab thiab ua rau cov txheej txheem sib cais thee nyuaj. Qhov kub thiab txias cuam tshuam rau ob qho tib si viscosity thiab kev ruaj khov ntawm kev tshem tawm; qhov kub sov feem ntau txo qhov viscosity, tab sis yog tias qhov kub tshaj qhov ntau thiab tsawg zoo tshaj plaws, lawv tuaj yeem ua rau qhov nruab nrab puas tsuaj lossis volatility sai dua, cuam tshuam rau cov txheej txheem beneficiation thee. Cov thawj coj cog qoob loo koom ua ke cov kev ntsuas no rau hauv cov zaub mov ua haujlwm, kho lawv kom tswj tau qhov ceev ntawm cov khoom nruab nrab zoo tshaj plaws rau kev tshem tawm gangue hauv kev ua cov thee.
Cov Kev Cuam Tshuam ntawm Cov Pluav Plua Plav rau Kev Noj Qab Haus Huv ntawm Cov Neeg Ua Haujlwm
Kev tuav thiab kev ncig ntawm cov khoom siv nruab nrab hnyav ua rau muaj hmoov av tawg, tshwj xeeb tshaj yog thaum siv cov hlau nplaum zoo lossis ferrosilicon. Cov hmoov av ntau ntxiv nrog kev ntxhov siab ntau, kev sib npaug PSD tsis raug, lossis kev tuav qhuav ntau dhau. Cov khoom me me hauv huab cua no ua rau muaj kev phom sij rau cov neeg ua haujlwm hauv cov chaw ua cov khoom siv hauv cov chaw ua cov thee. Cov qauv tsim ntawm cov nroj tsuag tam sim no siv cov tshuab cua zoo dua thiab cov tshuab sau hmoov av kom txo qis kev raug mob thaum lub sijhawm ua cov txheej txheem ntawm cov nroj tsuag npaj thee. Cov cuab yeej saib xyuas inline, xws li Lonnmeter, tuaj yeem pab txwv cov hmoov av tawm los ntawm kev tswj hwm qhov ceev thiab txo kev cuam tshuam tes. Kev tswj hwm kom zoo ntawm cov kev pheej hmoo hmoov av yog qhov tseem ceeb rau kev siv cov thev naus laus zis niaj hnub no.
Cov xwm txheej ua haujlwm ntawm cov nroj tsuag cuam tshuam ncaj qha rau qhov nruab nrab ntawm qhov ceev thiab cov hmoov av, ua rau pom qhov xav tau kev tswj hwm kom meej rau txhua yam uas cuam tshuam rau cov khoom siv nruab nrab hnyav. Cov txheej txheem ua cov thee zoo nyob ntawm txoj hauv kev sib koom ua ke, sib npaug PSD, cov khoom nruab nrab, thiab cov chaw ua haujlwm rau kev rov qab tau cov thee huv thiab cov chaw ua haujlwm nyab xeeb.
Kev Npaj Thee
*
Cov Tswv Yim Txhim Kho Rau Cov Txheej Txheem Npaj Thee
Tswj Kev Nruj Nruag Ruaj Khoov
Kev tswj kom muaj qhov ruaj khov ntawm qhov hnyav nruab nrab ntawm cov tshuaj ncua yog qhov tseem ceeb rau kev sib cais cov thee zoo hauv txhua lub chaw ua haujlwm thiab npaj cov thee. Cov txheej txheem tawm tswv yim yog lub hauv paus ntawm kev ua haujlwm tsis siv neeg. Cov ntsuas qhov ceev online, xws li cov uas tsim los ntawm Lonnmeter, siv cov sensors tiag tiag xws li cov ntsuas qhov ceev ntawm nuclear, cov ntsuas qhov ceev ntawm lub raj vibrating, thiab cov sensors ultrasonic los muab kev nyeem ntawv tas mus li ntawm qhov ceev ntawm cov tshuaj ncua. Cov sensors no tau koom ua ke nrog cov txheej txheem tswj cov txheej txheem, ua rau muaj kev tawm tswv yim yog tias qhov ceev ntsuas tsis sib xws ntawm cov hom phiaj ua ntej. Piv txwv li, lub kaw lus tuaj yeem tswj hwm magnetite lossis ntxiv dej, kom ntseeg tau tias cov khoom nruab nrab nyob hauv qhov ceev zoo tshaj plaws rau cov txheej txheem ntxuav thee.
Kev hloov kho uas siv tau tiag tiag suav nrog cov twj tso kua mis thiab cov twj tso kua mis uas tsis siv neeg los hloov kho qhov ntws ntawm cov dej ntom ntom thiab cov dej uas yaj lossis cov dej nplaum magnetite. Cov kev ua no raug tswj hwm los ntawm cov ntaub ntawv los ntawm lub ntsuas qhov ceev online rau cov dej nplaum thee, uas saib xyuas kev hloov pauv tas li thiab xyuas kom meej tias cov txheej txheem npaj thee tseem nyob hauv qhov ntau thiab tsawg uas xav tau. Cov lus ceeb toom yuav raug xa mus yog tias qhov nyeem qhov ceev hla cov kev txwv uas lees txais tau, ceeb toom rau cov neeg ua haujlwm txog kev ua haujlwm tsis zoo lossis kev ua qias tuaj ntawm lub sensor, ua rau muaj kev kho sai.
Cov lus qhia ntawm tus neeg ua haujlwm ntxiv rau kev ua haujlwm tsis siv neeg, hais txog kev saib xyuas cov qhov ceev ntawm cov khoom siv, kev saib xyuas cov sensor tsis tu ncua, thiab kev daws teeb meem sai sai ntawm cov teeb meem xws li kev nyeem tsis tu ncua, kev ceeb toom tas li, lossis qhov tsis sib xws pom hauv cov khoom lag luam. Cov txheej txheem daws teeb meem ib kauj ruam suav nrog: xyuas kom meej qhov kev ntsuas sensor; kuaj xyuas seb puas muaj kev thaiv lossis xau hauv cov kab xa khoom nruab nrab; tshuaj xyuas cov kev hloov kho tsis ntev los no lossis kev hloov pauv teeb tsa; thiab cais tawm qhov ua rau muaj kev hloov pauv, xws li cov khoom siv pub thee tsis tau xav txog lossis cov khoom siv ua haujlwm tsis zoo. Kev tshuaj xyuas cov qauv niaj hnub thiab kev sau cov ntaub ntawv txhawb nqa kev ua kom zoo dua tas li thiab kev kuaj mob hauv paus hauv kev ua haujlwm ntawm cov chaw npaj thee.
Txhim Kho Kev Ua Haujlwm Zoo ntawm Kev Sib Cais Thee
Cov txheej txheem sib cais thee vam khom kev kho qhov ceev ntawm cov khoom hnyav kom tsim tau ib qho ciam teb meej ntawm thee thiab gangue. Kev teeb tsa qhov ceev ntawm cov khoom nruab nrab kom raug yog qhov tseem ceeb: qhov ceev tsis txaus ua rau kev tshem tawm gangue tsis zoo hauv kev ua cov thee, txo qhov zoo ntawm cov thee huv; qhov ceev ntau dhau ua rau cov khoom siv hluav taws xob poob rau cov tailings, txo qis cov txiaj ntsig thiab ua rau cov khoom pov tseg ntau ntxiv. Cov neeg ua haujlwm yuav tsum kho qhov ceev raws li kev tshuaj xyuas tsis tu ncua ntawm cov yam ntxwv pub thiab cov khoom xav tau.
Kev tswj cov txheej txheem online tso cai rau kev hloov kho tas mus li kom tswj tau qhov txiav tawm, ua kom cov thee huv si ntau tshaj plaws thiab txo cov tshauv. Piv txwv li, hauv cov txheej txheem ua kom cov thee zoo, qhov nruab nrab ntawm 1.35–1.50 g/cm³ yog qhov ib txwm muaj rau kev cais cov thee zoo los ntawm cov khoom tsis huv uas muaj qhov ceev ntau dua. Kev kuaj xyuas hauv chaw kuaj mob tsis tu ncua ua pov thawj qhov tseeb ntawm cov txheej txheem online thiab pab tswj kev sib raug zoo ntawm qhov ceev tiag tiag thiab qhov ceev uas tau teem tseg, txhawb kev siv cov thev naus laus zis huv si tas mus li.
Cov txheej txheem ua kom cov thee ua haujlwm tau zoo kuj xav kom cov neeg ua haujlwm teb sai sai rau kev hloov pauv ntawm cov khoom noj zoo. Yog tias cov thee nkag los sib txawv ntawm qhov ceev lossis qhov loj me, kev kho dua tshiab tam sim ntawd ntawm qhov chaw teeb tsa qhov ceev ntawm kev ncua yuav ua rau kev sib cais zoo dua. Qhov kev ywj pheej no ua rau lub tshuab ntxuav thee tsim los hloov kho rau cov zis tawm ntawm lub qhov av, txo qhov kev nqa mus ntawm cov gangue tsis xav tau thiab ua kom qhov rov qab zoo tshaj plaws thiab kev huv ntawm cov khoom kawg.
Cov Txheej Txheem Txo Cov Pluag Mov
Kev tswj cov plua plav zoo yog qhov tseem ceeb rau kev ua haujlwm ntawm cov chaw ua haujlwm npaj thee kom muaj kev nyab xeeb thiab ua raws li txoj cai. Cov txheej txheem tswj cov plua plav ntub yog tus qauv hauv cov chaw ua haujlwm conveyor thiab cov chaw hloov pauv, qhov twg cov dej tsuag lossis cov khoom siv atomizing ua rau cov plua plav hauv huab cua tsawg kawg nkaus. Cov txheej txheem tsim cov thee huv si feem ntau koom ua ke tswj cov plua plav nrog kev tswj hwm qhov nruab nrab, lees paub tias kev tswj qhov tseeb txo cov khoom siv turbulence thiab agitator ua rau cov plua plav tsim thaum lub sijhawm ua thiab hloov pauv. Qhov nruab nrab ruaj khov txhais tau tias tsawg dua splashing thiab tsawg dua entrainment ntawm cov khoom me me hauv cov cua ntws.
Tsis tas li ntawd xwb, qhov nruab nrab ceev uas tswj tau zoo tiv thaiv kev sib sau ua ke ntawm cov khoom khov, txo cov kav dej hnav, kev pheej hmoo ntawm kev nchuav, thiab kev tsim cov hmoov av cuam tshuam - qhov tseem ceeb tshaj plaws hauv cov khoom siv hauv chaw ua cov thee. Cov neeg ua haujlwm hauv chaw ua haujlwm muaj lub luag haujlwm los xyuas kom meej tias lub kaw lus tua hmoov av zoo thiab yuav tsum daws qhov teeb meem xau, cov tshuaj tsuag txhaws, lossis kev hloov pauv ceev ceev uas tuaj yeem ua rau muaj kev pheej hmoo ntawm hmoov av. Kev coj ua zoo yuav tsum tau tshuaj xyuas cov chaw teeb tsa kev tswj hwm ceev thiab kev ua haujlwm ntawm kev tua hmoov av, kom ntseeg tau tias muaj kev tiv thaiv tas mus li rau cov neeg ua haujlwm, cov khoom siv, thiab ib puag ncig.
Kev tswj kom muaj qhov ceev ntawm cov thee uas zoo tshaj plaws, kev sib cais cov thee kom raug, thiab kev tshem tawm cov plua plav kom zoo yog lub hauv paus rau cov txheej txheem npaj cov thee uas ua haujlwm tau zoo, muaj kev nyab xeeb, thiab zoo. Cov kauj ruam ua cov txheej txheem npaj cov thee no, txhawb nqa los ntawm kev saib xyuas qhov ceev ntawm online thiab cov txheej txheem ua haujlwm uas muaj kev qhuab qhia, tsim lub hauv paus ntawm kev tsim cov thee huv niaj hnub.
Kev Xav Txog Ib puag ncig thiab Kev Nyab Xeeb
Kev tswj qhov ceev kom zoo hauv cov txheej txheem ua cov thee muaj cov txiaj ntsig ncaj qha rau kev txo cov pa phem ntawm cov khoom me me. Qhov ceev nruab nrab ntawm cov tshuaj sib xyaw ua ke txiav txim siab qhov ua tau zoo ntawm kev sib cais, cuam tshuam rau qhov ntau npaum li cas cov khoom me me, xws li cov hmoov av thee lossis cov khoom me me, lo rau thee tom qab ntxuav. Yog tias qhov ceev nruab nrab tsis raug kho kom zoo, cov khoom seem me me yuav tawm thaum lub sijhawm ntxuav lossis tuav, ua rau muaj cov pa phem ntau dua thaum khaws cia thiab thauj mus los.
Cov pa phem yog qhov teeb meem tseem ceeb hauv txhua lub chaw ua haujlwm thiab npaj cov thee. Cov txheej txheem ua cov thee xws li kev sib cais nruab nrab ntom ntom, thaum ua tiav nrog kev tswj qhov ntom ntom meej, pab tsim cov nplaim thee huv dua nrog cov khoom me me tsawg dua. Cov thev naus laus zis thee huv no ua rau muaj cov hmoov av tsawg dua kom raug tso tawm mus rau hauv huab cua thaum cov thee raug tswj tom qab hauv cov txheej txheem. Piv txwv li, yog tias kev yaug tom qab kev sib cais tsis txaus vim qhov ntom ntom tsis zoo, cov khoom me me tuaj yeem lo rau cov thee. Cov khoom me me no tom qab ntawd dhau mus rau hauv huab cua thaum lub sijhawm xa khoom lossis khaws cia, ua rau PM10 thiab PM2.5 nce siab, uas paub tias ua rau muaj kev puas tsuaj rau kev noj qab haus huv thiab ua rau huab cua tsis zoo.
Kev txhim kho huab cua zoo thiab kev nyab xeeb ntawm cov neeg ua haujlwm tuaj yeem ua tiav los ntawm kev txo cov plua plav uas tsim los rau cov txheej txheem ua kom cov thee zoo. Kev tiv thaiv dej ntub yog suav tias yog qhov zoo tshaj plaws, siv dej lossis cov tshuaj surfactants tshwj xeeb thaum thiab tom qab kev sib cais nruab nrab ntom ntom. Txoj hauv kev no tiv thaiv cov plua plav hauv huab cua los ntawm kev ntes cov khoom me me ntawm cov chaw. Piv txwv li, kev siv cov neeg sawv cev ntub dej ntawm cov chaw hloov pauv thiab khaws cia txo cov plua plav tsiv teb tsaws chaw. Kev tsim cov chaw khaws cia thee kuj cuam tshuam rau cov pa phem: cov pawg tiaj tiaj, piv rau cov pawg conical, tsim cov plua plav tsawg dua vim tias txo qis cua thiab kev ntxhov siab ntawm qhov chaw ntawm pawg.
Kev nce qib ntawm thev naus laus zis, xws li kev siv cov ntsuas qhov ceev hauv online rau cov thee slurry (xws li cov los ntawm Lonnmeter), ua rau muaj kev soj ntsuam tiag tiag thiab kev hloov kho qhov ceev ntawm cov khoom siv. Qhov no tso cai rau kev tswj hwm cov txheej txheem zoo dua thaum lub sijhawm ua haujlwm ntawm cov chaw npaj thee thiab txhawb nqa kev siv cov tswv yim tshem tawm plua plav uas sib haum nrog cov txheej txheem teeb tsa.
Yuav kom ua raws li cov qauv ib puag ncig, muaj ntau cov lus qhia tshwm sim:
- Kev ntsuas thiab saib xyuas tas li ntawm qhov ntom ntom nruab nrab thoob plaws hauv qhov tsim ntawm lub tshuab ntxuav thee kom ntseeg tau tias qhov ntau ntawm qhov ntom ntom zoo tshaj plaws tau khaws cia rau kev sib cais zoo thiab kev khaws cia zoo tsawg kawg nkaus.
- Kev tswj cov plua plav kom huv si ntawm txhua qhov chaw tseem ceeb, tshwj xeeb tshaj yog ntawm kev sib cais thee, kev ntxuav, thiab chaw xa khoom, nrog rau kev nyiam siv cov txheej txheem tswj cov dej ntub. Yog tias siv cov tshuaj tua kab mob, xaiv cov tshuaj phytochemical uas tau ua pov thawj tias muaj kev nyab xeeb rau cov neeg ua haujlwm thiab ib puag ncig.
- Kev siv cov kev soj ntsuam huab cua zoo tiag tiag hauv thaj chaw ua haujlwm kom ntseeg tau tias qhov concentration ntawm PM tsis tshaj qhov txwv ntawm kev raug tshuaj lom hauv chaw ua haujlwm.
- Kev siv cov cheeb tsam buffer zones thiab cov cheeb tsam tswj kev nkag mus nyob ib puag ncig cov chaw uas muaj cov plua plav ntau kom txo tau kev raug mob ntawm cov neeg ua haujlwm thiab kev tsiv teb tsaws chaw mus rau lwm qhov chaw.
- Xyuas kom tseeb tias kev ua haujlwm ntawm lub Hoobkas thiab cov khoom siv hauv Hoobkas ua cov thee ua raws li cov lus qhia txog kev tso pa phem thiab kev nyab xeeb hauv chaw ua haujlwm. Qhov no suav nrog kev koom ua ke ntawm kev tswj hwm plua plav rau hauv cov txheej txheem ntawm lub Hoobkas npaj cov thee thiab ua kev tshuaj xyuas ib puag ncig tsis tu ncua.
Kev ua raws li cov txheej txheem no ua kom muaj kev nyab xeeb thiab muaj lub luag haujlwm rau ib puag ncig, txhawb nqa ncaj qha rau cov txheej txheem tsim cov thee huv thiab txhim kho ob qho tib si kev ua haujlwm ntawm cov nroj tsuag thiab cov qauv kev noj qab haus huv ntawm cov neeg ua haujlwm.
Cov Lus Nug Feem Ntau (FAQs)
Lub luag haujlwm ntawm kev ntsuas qhov ceev hauv cov txheej txheem cog thee yog dab tsi?
Kev ntsuas qhov ceev yog ib qho tseem ceeb hauv kev tswj hwm cov txheej txheem cog thee. Nws txiav txim siab qhov ua tau zoo ntawm kev sib cais nruab nrab hnyav - ib txoj kev uas vam khom qhov ceev ntawm cov khoom siv, feem ntau yog magnetite thiab dej, los cais cov thee huv ntawm cov gangue. Kev tswj qhov ceev nruab nrab kom zoo ua kom cov thee ntab thaum cov khoom tsis huv xws li pob zeb thiab shale poob, ua kom cov thee huv siab tshaj plaws thiab tshem tawm cov gangue zoo. Txawm tias qhov sib txawv me ntsis ntawm qhov ceev tuaj yeem txo cov nqi rov qab thee thiab ua rau muaj kev ua qias tuaj, cuam tshuam rau qhov zoo ntawm cov khoom thiab kev lag luam hauv cov txheej txheem ntxuav thee thiab cov txheej txheem siv thee.
Lub ntsuas qhov ceev hauv online ua li cas thiaj txhim kho kev ua haujlwm ntawm cov txheej txheem npaj thee?
Ib lub tshuab ntsuas qhov ceev hauv online, xws li cov qauv uas Lonnmeter muab, ua rau muaj kev soj ntsuam tas mus li ntawm cov khoom siv hnyav uas siv hauv kev tsim cov chaw ntxuav thee. Nrog cov lus teb tam sim ntawd, cov neeg ua haujlwm tuaj yeem kho qhov kev ntws ntawm cov txheej txheem, tswj cov qib ceev zoo tshaj plaws, thiab xyuas kom meej tias cov khoom siv huv si ruaj khov. Qhov no txo qhov kev poob qis los ntawm kev kuaj tes thiab txo qhov kev pheej hmoo ntawm kev ua haujlwm tsis zoo, ua rau kev ntxuav zoo dua, kev siv hluav taws xob tsawg dua, thiab cov txheej txheem tsim cov khoom siv huv si zoo dua. Cov txheej txheem tswj hwm kaw-loop siv cov ntaub ntawv los ntawm cov tshuab ntsuas qhov ceev hauv online los tswj kev ntxiv magnetite thiab dej ntws, ua kom cov txheej txheem ua haujlwm ruaj khov ntxiv.
Gangue yog dab tsi thiab nws sib cais li cas hauv cov chaw ua haujlwm tswj hwm thee?
Gangue piav qhia txog cov khoom siv tsis yog thee thiab cov khoom tsis huv—xws li pob zeb, shale, thiab av nplaum—uas raug khawb ua ke nrog thee. Hauv cov txheej txheem npaj cov thee, gangue raug cais tawm ntawm thee siv cov txheej txheem raws li qhov ceev. Cov khoom nruab nrab hnyav ua haujlwm ua tus cais: thee, nrog nws qhov ceev qis dua, ntab, thaum gangue ntom dua poob dej. Qhov kev sib cais no yog tsav los ntawm qhov ceev nruab nrab tswj tau meej thiab yog qhov tseem ceeb rau kev siv tshuab thee huv thiab txhim kho cov khoom zoo.
Vim li cas kev tshem tawm cov plua plav thiaj li tseem ceeb hauv kev tswj hwm thiab kev npaj cov thee?
Kev tswj cov plua plav yog qhov tseem ceeb rau kev noj qab haus huv, ib puag ncig, thiab cov laj thawj ntawm cov khoom siv hauv kev tswj thiab npaj cov thee. Cov plua plav thee tuaj yeem ua rau cov neeg ua haujlwm muaj kev phom sij rau kev ua pa, txo qhov pom kev, thiab ua rau cov khoom siv puas tsuaj los ntawm kev sib txhuam thiab kev txhaws. Kev tswj cov plua plav zoo - suav nrog cov txheej txheem tswj cov dej noo hauv cov chaw ua haujlwm siv txoj siv - txo cov plua plav hauv huab cua, txhim kho kev nyab xeeb hauv chaw ua haujlwm, thiab ua kom cov khoom siv siv tau ntev. Cov thawj coj ntawm cov nroj tsuag feem ntau koom ua ke cov tshuaj tsuag dej thiab cov chav rho plua plav ua ib feem ntawm cov kauj ruam npaj cov thee.
Cov khoom siv twg koom nrog hauv cov txheej txheem npaj thee rau kev ntsuas thiab tswj qhov nruab nrab ceev?
Cov khoom siv tseem ceeb rau kev ntsuas thiab tswj qhov nruab nrab muaj xws li:
- Cov ntsuas qhov ceev hauv online rau cov thee slurry, xws liCov cuab yeej Lonnmeter, muab cov ntaub ntawv tiag tiag.
- Hydrometers rau kev txheeb xyuas tes tsis tu ncua.
- Cov crushers thiab cov ntxaij vab tshaus rau kev txo qhov loj me thiab kev faib tawm.
- Cov voj voog ntxuav suav nrog cov cua daj cua dub nruab nrab thiab lub dab dej, rau kev sib cais raws li qhov ceev.
- Cov tshuab tswj tsis siv neeg uas kho cov khoom nruab nrab raws li kev nyeem qhov ceev.
Cov txheej txheem thiab cov khoom siv sib koom ua ke no ua kom muaj kev ua haujlwm ruaj khov, kev tsom qhov ceev kom raug, thiab kev tshem tawm cov khib nyiab zoo hauv cov khoom siv ua cov thee thiab cov txheej txheem ua kom zoo. Piv txwv li, cov ntsuas qhov ceev online sib txuas ncaj qha nrog cov vaj huam sib luag tswj hwm los tswj cov tshuaj magnetite thiab tswj cov ntsiab lus teeb tsa qhov ceev, ua rau cov txheej txheem sib cais thee zoo dua thiab cov txiaj ntsig thee huv.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-02-2025
