Kev Ua Hlau Hlau: Cov Ntsiab Cai, Lub Hom Phiaj, thiab Cov Txiaj Ntsig Zoo
Kev ua kom cov hlau nplaum sib xyaw ua ke yog ib txoj kev ua cov khoom siv uas ua rau cov hlau nplaum rov qab zoo dua thiab zoo dua. Nws ua haujlwm los ntawm kev xaiv cov hlau nplaum uas muaj nqis, xws li hematite thiab magnetite, los ntawm cov hlau nplaum uas tsis xav tau xws li silica, alumina, thiab sulfur. Cov txheej txheem no vam khom qhov sib txawv ntawm cov tshuaj lom neeg saum npoo av, ua rau muaj kev ywj pheej thiab kev ua kom cov hlau nplaum sib xyaw ua ke kom zoo dua qub thiab qib.
Kev Xaiv Sib Cais Cov Khoom Muaj Nqis
Kev ua haujlwm ntawm kev sib cais ntawm cov khoom siv flotation yog tsav los ntawm kev nqus ntawm cov khoom siv sib sau thiab cov khoom ua npuas uas hloov cov nplaim ntawm cov pob zeb hauv av. Piv txwv li, cov khoom siv sib sau ua ke xws li etheramines tsom rau silica, ua rau nws cov khoom sib sau ua ke los ntawm cov hlau oxides. Cov khoom siv sib sau ua ke anionic zoo li cov roj fatty acids ua haujlwm tau zoo rau cov nplaim ntawm cov hlau oxide, ua rau lawv rov qab zoo dua. Cov kev nce qib tsis ntev los no suav nrog cov txheej txheem sib xyaw ua ke - etheramine, amidoamine, thiab MIBC - ua tiav ob qho tib si kev xaiv zoo dua rau hematite / goethite thiab kev txhim kho qhov tseeb ntawm kev sib cais flotation.
Kev tswj cov txheej txheem txheej txheem, suav nrog kev tswj qhov ceev ntawm cov slurry thiab kev hloov kho qhov tseeb ntawm cov reagent, yog qhov tseem ceeb heev. Cov ntsuas qhov ceev ntawm cov hlau ore slurry zoo xws li Lonnmeter txhawb nqa kev tswj qhov ruaj khov ntawm cov txheej txheem los ntawm kev ncua sijhawm ntawm kev sib cais ntawm cov minerals thiab gangue zoo tshaj plaws, tiv thaiv kev hloov pauv ntawm qhov ceev ntawm cov slurry.
Kev Ua Hlau Hlau
*
Kev Tshem Tawm Kev Ua Phem thiab Kev Txhim Kho Qib Ore
Kev tshem tawm cov khoom tsis huv thaum lub sijhawm ntab dej ncaj qha ua rau cov hlau sib xyaw ua kom ruaj khov. Silica, alumina, thiab sulfur raug tsis lees txais, tsim cov hlau sib xyaw ua kom zoo dua uas txo qhov kev siv zog hauv kev sib xyaw ua ke. Kev kho kom zoo ntawm cov khoom siv collector thiab frother, ua haujlwm nrog cov sensors siab heev, ua kom ntseeg tau tias siv cov reagent raug thiab txo cov khib nyiab reagent.
Kev sib cais cov zaub mov thiab cov hlau ua ke zoo kuj txo cov nyeem ntawm cov ntsuas qhov tuab ntawm cov hlau, ua rau kev ua kom cov hlau tuab zoo dua. Kev txo cov khoom tsis huv kom tsawg pab txhawb kev ua raws li ib puag ncig los ntawm kev txo cov khoom tsim teeb meem.
Siv Cov Ores Qib Qis thiab Kev Siv Cov Khoom Siv Kom Zoo Tshaj Plaws
Cov hlau ores qib qis, uas muaj cov khoom tsis zoo thiab kev sib koom ua ke nyuaj, feem ntau xav tau kev sib xyaw ua ke kom tau txiaj ntsig zoo. Kev sib xyaw ua ke ua rau siv tau cov hlau banded iron formations (BIFs) thiab cov hlau lean los ntawm kev xaiv cov hlau oxides. Kev sib txuas ua ke nrog cov txheej txheem ua ntej sib xyaw ua rau muaj kev rho tawm cov peev txheej ntau tshaj plaws, txo cov dej khib nyiab, thiab txhawb nqa kev saib xyuas qhov ntom ntawm cov tailings rau kev siv dav dav.
Piv txwv li suav nrog kev txhim kho qhov twg flotation tom qab kev sib cais ntawm lub ntiajteb txawj nqus tau zoo tshem tawm cov gangue, refining concentrate rau steelmaking specification thiab txo cov hlau ore nrhiav tsis tau rov qab.
Kev Cuam Tshuam Txog Kev Lag Luam ntawm Kev Floating
Kev nce qib hlau concentrate txo qhov kev siv zog thiab cov nqi tsim khoom hauv kev ua tiav tom qab. Kev tswj hwm tus nqi tsim khoom ntawm Flotation yog los ntawm kev txo qis kev siv zog lim thiab kev tiv thaiv kev txhaws ntawm lim. Kev sib cais zoo txo cov kev xav tau kev hnav thiab kev tiv thaiv kev txhaws ntawm cov kav dej, txhawb kom lub cev siv tau ntev thiab txo cov nqi kho.
Kev saib xyuas hauv kab siab heev, xws li kev ruaj khov ntawm cov hlau sib xyaw thiab kev ntsuas qhov ceev ntawm cov tailings los ntawmdensity meter rau slurry, xyuas kom meej tias kev ua haujlwm ua tau raws li qhov yuav tsum tau khaws cia cov tailings, qhov tseem ceeb rau kev ua raws li txoj cai.
Kev Txo Qhov Chaw Ib Puag Ncig
Kev ua kom cov hlau ntab hauv dej pab txhawb kev saib xyuas ib puag ncig los ntawm kev pab txhawb kev tswj hwm cov hlau ntab thiab txo cov hlau tsis tau rov qab los. Kev txhim kho cov hlau ntab zoo los ntawm kev ua kom cov hlau ntab zoo txhawb nqa kev rov ua dua av, txwv tsis pub muaj kev puas tsuaj rau qhov chaw nyob, thiab txo qhov ntim ntawm cov khoom pov tseg phom sij. Kev koom ua ke ntawm cov thev naus laus zis bio-beneficiation ua rau muaj kev txo cov khib nyiab reagent thiab txhawb kev ruaj khov.
Kev ruaj khov ntawm cov txheej txheem thiab kev tswj cov tshuaj reagent meej kuj txhais tau tias muaj tsawg dua cov tshuaj lom neeg thiab cov pa phem, ua kom cov haujlwm sib haum nrog cov qauv kev cai tshiab. Ua ke, cov tswv yim no ua kom lub luag haujlwm ntawm kev ntab dej hauv kev txhim kho ob qho tib si kev ua haujlwm thiab kev ua haujlwm ib puag ncig ntawm kev ua cov hlau.
Cov Khoom Siv Tseem Ceeb thiab Cov Txuj Ci hauv Kev Ua Hlau Hlau
Cov Cell Flotation hauv Kev Ua Cov Khoom Siv Mineral
Cov voj voog flotation hlau siv peb hom cell tseem ceeb: mechanical, column, thiab pneumatic. Mechanical flotation cells muaj agitators thiab impellers los xyuas kom meej tias muaj kev sib xyaw ua ke, feem ntau siv rau lawv txoj kev tswj hwm cov khoom noj ntxhib thiab cov khoom noj zoo. Cov column flotation cells, siab dua thiab nyias dua, muab kev sib cais zoo dua rau cov khoom me me los ntawm kev tsim kom muaj ib puag ncig npuas mos dua thiab thaj chaw ua npuas ruaj khov dua. Pneumatic flotation cells siv cov dav hlau cua es tsis txhob siv mechanical agitation, txhim kho kev ua haujlwm yooj yim thiab txo kev siv hluav taws xob.
Kev ua haujlwm ntawm cov cell hydrodynamics—uas yog lub sijhawm nyob, cua ntws, thiab qhov loj ntawm cov npuas—muaj feem cuam tshuam ncaj qha rau kev ua haujlwm ntawm kev sib cais ntawm cov khoom siv hauv dej. Lub sijhawm nyob ntev dua ua rau muaj kev sib cuag txaus ntawm cov khoom siv hauv av thiab cov npuas, thaum ua kom zoo dua qhov cua ntws thiab qhov loj ntawm cov npuas ua rau muaj kev xaiv ntau ntxiv ntawm cov khoom siv hauv av thiab cov gangue. Piv txwv li, kev ntws ntawm huab cua ntau ntxiv tuaj yeem txhim kho qhov sib tsoo ntawm cov npuas thiab cov khoom siv hauv av, tab sis kev ntxhov siab ntau dhau tuaj yeem txo qhov tseeb ntawm kev sib cais.
Cov yam ntxwv tsim ntawm cov hlwb flotation yog qhov tseem ceeb rau kev ua haujlwm ntawm lub voj voog thiab kev ruaj khov ntawm cov txheej txheem. Cov hlwb nrog cov cua nkag tau hloov kho tau, cov qauv tsim impeller tshiab, thiab cov txheej txheem tswj hwm ua rau kev ua haujlwm ruaj khov txawm tias muaj kev hloov pauv ntawm cov khoom noj slurry thiab cov khoom sib xyaw. Cov koob ntawm lub hlwb flotation qhia txog kev ua tau zoo nrog kev tswj hwm PLC tsis siv neeg, kev saib xyuas lub sijhawm tiag tiag, thiab kev hloov kho cov tshuaj reagent ntse, txo cov tshuaj reagent pov tseg thiab txhawb nqa qib sib xyaw. Cov txheej txheem niaj hnub siv kev tshuaj xyuas cov duab ua npuas thiab kev kawm tshuab rau kev hloov kho sai ntawm cov kev ua haujlwm, txo qhov sib txawv thiab ua kom zoo dua cov khoom zoo. Kev saib xyuas ua rau muaj kev hloov pauv meej hauv cov koob tshuaj collector thiab frother, ua rau txo qis kev poob reagent thiab tus nqi tsim khoom. Cov kev nce qib no tso cai rau kev ua haujlwm kom tswj tau qhov ua tau zoo ntawm kev sib cais flotation thiab txo qis cov hlau tsis tau rov qab.
Kev Ntsuas thiab Tswj Xyuas Qhov Ceev ntawm Slurry
Kev tswj hwm qhov ceev ntawm cov slurry yog qhov tseem ceeb rau kev ruaj khov ntawm lub voj voog flotation.hlau ore slurry density meter(xws li cov ntsuas ultrasonic) muab qhov tseeb, tsis muaj radioactive density readings, tseem ceeb rau kev tswj hwm cov txheej txheem raws sijhawm. Cov yam ntxwv suav nrog kev tiv thaiv kev ntsuas cov yeeb nkab, teb sai, thiab sib xws nrog cov tshuab tswj tsis siv neeg. Hauv kev xyaum, kev ntsuas tas mus li ua rau cov neeg teb xov tooj teb tau tam sim ntawd rau qhov kev hloov pauv ntawm qhov ceev, tswj kev sib cais ntawm cov dej ntws thiab tiv thaiv cov teeb meem ntawm cov slurry density-driven xws li lub tshuab zeb overload lossis cov yeeb nkab clogging.
Lub ntsuas qhov ntom ntom ntawm cov hlau nplaum raug siv rau ntawm cov ntsiab lus uas cov khoom nplaum tsis ntws los xyuas kom meej tias cov hlau nplaum tuab npaum li cas. Qhov no ua rau cov hlau nplaum tuab ua haujlwm tau zoo dua thiab tswj tau qhov ruaj khov ntawm cov hlau nplaum los ntawm kev pub cov khoom noj rau cov khoom lim thiab cov khoom ua pelletizing kom zoo. Qhov ntom ntom ntawm cov hlau nplaum ruaj khov ua rau cov khoom lim tau zoo dua thaum txo cov kev siv hluav taws xob thiab txo qhov kev pheej hmoo ntawm kev txhaws ntawm cov lim. Kev kho cov dej nkag thiab cov nqi pub cov hlau nplaum raws li kev nyeem ntawv tiag tiag txo qhov zaus ntawm kev cuam tshuam ntawm kev lim, txhawb nqa kev rov qab zoo, thiab txhawb nqa kev tswj tus nqi tsim khoom.
Kev ntsuas qhov ceev ntawm cov hlau tailings yog qhov tseem ceeb rau kev ua kom tau raws li qhov yuav tsum tau khaws cov tailings thiab ua tiav kev siv cov tailings tag nrho. Kev saib xyuas qhov ceev ntawm cov tailings tas mus li qhia txog kev tsim lub pas dej thiab kev txiav txim siab ua haujlwm, tiv thaiv kev phom sij rau kev nyab xeeb thiab pab txhawb kev rov qab tau cov peev txheej tom qab. Qhov ceev ntawm cov tailings ruaj khov txhawb nqa kev tswj hwm qhov ruaj khov ntawm cov txheej txheem hauv qab thiab ua rau pom cov hlau tailings tsis tau rov qab los hauv cov kwj deg tailings.
Cov txheej txheem tswj cov slurry density tiag tiag suav nrog kev nyeem ntawv los ntawm ntau lub voj voog - pub, concentrate, thickener, thiab tailings - xyuas kom meej tias cov yeeb nkab hnav thiab lim clogging thoob plaws hauv cov dej ntws beneficiation. Piv txwv li, kev hloov kho qhov ceev ceev sai sai tiv thaiv cov khoom khov kho hauv cov yeeb nkab, txo kev saib xyuas thiab ntev lub neej ntawm cov khoom siv. Kev ruaj khov cov txheej txheem hloov pauv txhawb nqa kev ntsuas reagent kom raug, kev kho kom zoo dua cov khoom sau thiab cov khoom ua npuas ncauj, thiab txhim kho tag nrho kev sib cais flotation. Cov voj voog rov qab ceev ceev tsis siv neeg, ua ke nrog Lonnmeterultrasonic slurry density meterthiab cov ntsuas qhov ceev sib xws, yog qhov tseem ceeb rau kev tswj cov dej ntws niaj hnub no, ua kom muaj kev ntsuas tau zoo los ntawm chav kuaj mus rau kev ua haujlwm hauv kev lag luam.
Cov Txheej Txheem Txheej Txheem Optimizing Iron Ore Flotation Separation
Kev Txhim Kho Dosage ntawm Collector thiab Frother
Qhov zoo tshaj plaws ntawm kev sau thiab kev siv cov khoom ua npuas yog qhov tseem ceeb hauv cov txheej txheem flotation hlau kom ntseeg tau tias cov zaub mov thiab kev sib cais gangue zoo. Cov khoom sau xws li cov roj fatty acids lossis hydroxamates xaiv cov khoom sib txuas rau cov zaub mov hlau, thaum cov khoom ua npuas—zoo li MIBC—ua kom cov npuas ruaj khov thiab tswj qhov loj ntawm cov npuas. Ob qho tib si reagents xav tau kev xaiv meej thiab kev siv cov khoom kom raug kom ua kom cov zaub mov rov qab tau zoo tshaj plaws thiab txo cov reagent pov tseg.
Cov kev tshawb fawb tsis ntev los no siv Cov Txheej Txheem Teb (RSM) tau txheeb xyuas cov koob tshuaj collector ntawm kwv yees li 80 ml / kg thiab cov koob tshuaj frother ze li ntawm 50 ml / kg raws li qhov zoo tshaj plaws nyob rau hauv cov xwm txheej tshwj xeeb flotation rau cov hlau ore slimes. Cov koob tshuaj no, kho rau hom ore thiab cov hom phiaj txheej txheem, xa cov txiaj ntsig zoo tshaj plaws ntawm kev sib cais flotation thiab txhim kho qhov zoo ntawm cov concentrate. Qhov tseem ceeb, cov tshuaj sib xyaw ua ke tsis zoo, tshwj xeeb tshaj yog cov sib xyaw ntawm cov neeg sau nrog MIBC ua frother, ua tau zoo dua li cov txheej txheem ib leeg-reagent - ua rau muaj kev xaiv zoo dua thiab rov qab zoo dua. Kev kho kom zoo ntawm frother concentration yog qhov tseem ceeb tshwj xeeb hauv kev sib xyaw ua ke; kev hloov kho me me tuaj yeem cuam tshuam tsis yog tsuas yog kev sib cais zoo xwb tab sis kuj tseem xav tau lub zog, vim tias kev tsim cov qauv npuas zoo tso cai rau kev sib tsoo coarser thiab kev txuag hluav taws xob.
Kev hloov kho qhov kev ntsuas tshuaj reagent kom raug yog qhov tseem ceeb. Kev ntxiv cov khoom siv los sau/ua npuas tsis txaus yuav txo qhov kev rov qab thiab qib concentration; tus neeg siv ntau dhau ua rau tus nqi nce thiab tej zaum yuav ua rau muaj cov khoom tsis huv. Cov txheej txheem ntsuas tshuaj niaj hnub no sib xyaw nrog cov lus teb rov qab tiag tiag los ntawm cov ntsuas qhov ceev ntawm cov hlau ore slurry, xws li Lonnmeter. Cov txheej txheem no hloov kho cov nqi ntsuas tshuaj raws li kev hloov pauv ntawm qhov ceev ntawm cov slurry, ua kom ntseeg tau tias cov txheej txheem ruaj khov thiab txo cov khib nyiab reagent. Cov kev tshawb fawb tsis ntev los no hauv kev lag luam qhia tau hais tias kev koom ua ke ntawm cov sensor feedback rau hauv cov txheej txheem ntsuas reagent txhim kho ob qho tib si kev ua haujlwm ntawm cov khoom siv flotation thiab kev tswj tus nqi tsim khoom.
Kev Tiv Thaiv Kev Hloov Pauv ntawm Cov Slurry Density
Kev tswj kom cov slurry density tas li thoob plaws hauv lub voj voog flotation yog qhov tseem ceeb rau kev txhim kho qhov tseeb ntawm kev sib cais flotation thiab qib hlau concentrate ruaj khov. Kev hloov pauv ntawm qhov ceev tuaj yeem ua rau muaj kev coj cwj pwm tsis zoo, kev faib cov reagent tsis sib xws, thiab cov teeb meem ua haujlwm xws li lim dej txhaws lossis cov kav dej hnav. Cov txheej txheem tswj hwm tsis siv neeg, coj los ntawm kev ntsuas qhov ceev tiag tiag los ntawm cov ntsuas qhov ceev slurry, pab cov neeg ua haujlwm kho cov dej thiab cov khoom khov ntxiv rau hauv lub voj voog sai sai. Qhov no txo qhov kev hloov pauv los ntawm kev hloov pauv pub lossis kev ua haujlwm tsis zoo.
Cov txheej txheem txheej txheem suav nrog kev ntsuas qhov ntxiv dej tas li thiab kho qhov dej ntws hauv qab lossis cov twj tso kua mis raws li cov zis los ntawm cov ntsuas qhov ceev. Yog tias qhov pub dej dhau los ua dilute (qhov ceev poob qis), cov twj tso kua mis tsis siv neeg txo cov dej nkag lossis nce cov khoom khov. Thaum qhov ceev nce (ua tuab dhau), dej raug ntxiv los tswj qhov ntau yam zoo tshaj plaws rau kev ua kom zoo. Cov txheej txheem no tsis yog tsuas yog ua kom lub cell ua haujlwm ruaj khov xwb tab sis kuj txhim kho kev ua kom tuab ntawm cov khoom sib xyaw, txo kev siv zog lim dej, thiab tiv thaiv cov lim dej txhaws.
Cov ntsuas siab heev, zoo liLonnmeterslurry density analyzer, ua kom muaj peev xwm ntsuas qhov tuab ntawm cov hlau uas muaj zog tiag tiag. Qhov no txhawb nqa qib khoom sib xws thiab kev tshem tawm cov dej noo tom qab kev sib xyaw. Rau kev tswj hwm cov txheej txheem kom tiav, cov cuab yeej saib xyuas qhov tuab ntawm cov tailings xyuas kom meej tias cov kwj deg pov tseg ua tau raws li qhov yuav tsum tau khaws cia thiab txhawb nqa kev tshawb pom cov hlau tsis tau rov qab los rau kev ua kom zoo dua qub.
Cov Kev Ntsuas Tseem Ceeb ntawm Kev Nqus Dej thiab Lawv Txoj Kev Tswj
Yuav tsum tswj ib pawg ntawm cov txheej txheem tseem ceeb kom ruaj khov rau kev sib cais ntawm cov khoom sib xyaw. Qhov ceev ntawm lub impeller, qhov nrawm ntawm kev ua pa, thiab lub sijhawm nyob yog cov yam tseem ceeb. Lawv qhov kev ua kom zoo tshaj plaws cuam tshuam ncaj qha rau kev tsim cov npuas, kev sib tov, thiab lub sijhawm uas cov zaub mov siv hauv cov hlwb flotation. Kev kho cov kev hloov pauv no yam tsis muaj kev tawm tswv yim tas mus li tuaj yeem ua rau muaj qhov tshwm sim tsis zoo: qhov ceev ntawm lub impeller siab dhau yuav ua rau cov khoom me me nkag mus; qhov nrawm ntawm kev ua pa qis tuaj yeem ua rau cov zaub mov rov qab tsis tiav.
Kev kho cov kev ntsuas no suav nrog kev txuas cov kev hloov pauv ntawm cov txheej txheem nrog kev nyeem ntawv los ntawm cov ntsuas qhov ceev ntawm cov hlau ore slurry thiab cov cuab yeej saib xyuas cov khoom siv. Cov neeg ua haujlwm siv cov qauv khoom sib xyaw ua ke - ua los ntawm cov ntaub ntawv sim - thiab koom ua ke rau hauv lub tshuab tswj hwm ntawm lub Hoobkas, tso cai rau kev hloov kho kwv yees. Piv txwv li, kev hloov pauv ntawm qhov ceev ntawm cov khoom nkag uas cov sensors ntes tau ua rau muaj kev ceev ntawm lub impeller lossis kev hloov pauv cua kom tswj tau qhov rais ua haujlwm zoo tshaj plaws.
Kev saib xyuas qhov ceev ntawm cov hlau thiab cov hlau uas raug tso tawm kom raug yuav tiv thaiv kev poob ntawm cov hlau uas tsis tau rov qab los. Yog tias cov ntsuas qhov ceev ntawm cov hlau tailings sau cov kev hloov pauv, cov neeg ua haujlwm tuaj yeem cuam tshuam los ntawm kev nce lub sijhawm nyob lossis hloov kho qhov ntxiv ntawm cov tshuaj reagent. Lub voj voog tawm tswv yim no ua rau muaj kev ruaj khov ntawm cov parameter, ua kom ntseeg tau tias muaj txiaj ntsig zoo dua thiab qib concentrate ruaj khov. Qhov tshwm sim yog kev txhim kho qhov tseeb ntawm kev sib cais ntawm cov khoom ntab, kev tiv thaiv kev poob ntawm cov hlau uas tsis tau rov qab los, thiab kev tswj hwm qhov ruaj khov ntawm cov txheej txheem.
Txhim Kho Cov Txiaj Ntsig ntawm Cov Txheej Txheem: Los ntawm Kev Sib Cais Zoo mus rau Kev Siv Nyiaj Tau Zoo
Kev Sib Cais Cov Mineral thiab Gangue Zoo
Kev txhawb nqa kev xaiv ntawm cov hlau hauv cov hlau nyob ntawm seb puas siv cov tshuaj reagent twg. Cov tshuaj xaiv, xws li alkyl etheramines, feem ntau nqus cov hlau hauv cov hlau, ua rau lawv hydrophobic thiab txhawb kev sib xyaw, thaum cov tshuaj depressants xws li hmoov txhuv nplej siab thiab sodium hexametaphosphate (SHMP) ua rau cov hlau hauv cov hlau hydrophilic, ua rau lawv tsis sib xyaw. Lub tshuab ternary collector-frother qhia tau hais tias kev sib xyaw ua ke ntawm cov tshuaj reagents tuaj yeem txhim kho kev sib cais thiab txo cov silica thiab alumina hauv cov concentrates, tshwj xeeb tshaj yog rau cov hlau nyuaj. Piv txwv li, SHMP ua rau cov chlorite nyuaj yam tsis cuam tshuam rau specularite flotation, ua rau kev tshem tawm cov silicate gangue zoo dua.
Kev ua kom zoo dua ntawm cov txheej txheem sib npaug ua rau cov khoom siv ua kom lub zog thiab lub zog ntawm cov tshuaj depressant. Kev poob qis ntau dhau ua rau cov hlau rov qab los tsawg dua; kev xaiv tsis txaus ua rau cov tshuaj concentrates paug. Cov cuab yeej ntsuas sib xyaw ua ke, xws li cov ntsuas ceev ntawm cov hlau ore slurry real-time (suav nrog Lonnmeter), ua rau muaj kev tswj hwm qhov ceev ntawm cov tshuaj slurry thiab kev siv tshuaj reagent, txo qhov poob Fe thiab ua kom cov qib concentrate ruaj khov. Cov neeg ua haujlwm kho qhov aeration, cov tshuaj reagent, thiab cov theem cell teb rau cov ntaub ntawv ceev tas mus li, kom ntseeg tau tias muaj cov txiaj ntsig sib cais tas mus li. Cov qauv kev kawm tshuab ntxiv kwv yees thiab txhim kho qhov zoo ntawm cov tshuaj concentrate nyob rau hauv cov xwm txheej dynamic.
Kev Ua Kom Thickening thiab Filtration Optimization
Kev ua kom tuab thiab kev lim dej zoo yog qhov tseem ceeb rau kev ua kom tau raws li qhov xav tau ntawm kev tshem dej thiab kev khaws cia hauv kev ua kom cov hlau ua kom tuab. Kev ua kom tuab ua rau cov khoom khov ntau ntxiv los ntawm kev sib tsoo lossis kev sib xyaw ua ke; kev lim dej tshem tawm cov dej seem kom tsim cov khoom lim qhuav. Kev saib xyuas tas li nrog cov khoom siv zoo li Lonnmeterhlau concentrate thickening density meterua kom ntseeg tau tias cov dej ntws hauv qab ua tau raws li cov qauv ceev uas tau teeb tsa rau kev tshem dej tawm tom qab thiab kev khaws cia kom muaj kev nyab xeeb.
Kev ua kom cov concentrate tuab zoo tshaj plaws yuav tsum tau siv cov tshuaj flocculant kom raug kom ua rau cov dej ntws hauv qab thiab ua kom cov dej ntws meej dua. Cov kauj ruam no cuam tshuam ncaj qha rau qhov kev lim dej ua haujlwm zoo li cas. Cov tshuab lim membrane, tom qab ua kom cov dej ntws zoo tshaj plaws, ua tiav cov ncuav mog qab zib lim nrog cov dej noo hauv qab 6%, txhawb nqa kev tsim cov hlau zoo. Kev siv zog lim dej poob qis thaum tswj kev sib txuas thiab kev sib koom ua ke ntawm ncuav mog qab zib; cov qauv theoretical kwv yees qhov kev ua haujlwm sib cais hauv qab kev nyuaj tshwj xeeb thiab kev kho ncuav mog qab zib. Kev tiv thaiv kev txhaws ntawm cov lim dej vam khom cov khoom siv slurry tswj tau - tshwj xeeb tshaj yog qhov ceev thiab viscosity sib xws - ua tiav nrog kev ntsuas lub sijhawm tiag tiag thiab kev ntsuas kom raug.
Kev Tswj Xyuas Cov Khoom Siv Thiab Kev Tshawb Nrhiav Cov Khoom Siv Uas Tsis Tau Rov Qab Los
Kev tswj hwm cov tailings zoo hauv kev flotation hlau ore nyob ntawm kev saib xyuas qhov ceev ntawm cov tailings kom raug rau kev nyab xeeb, kev rov qab tau cov peev txheej, thiab kev siv. Kev ntsuas qhov ceev ntawm cov tailings hlau ore, ntawmcov sensors tsis tu ncua(xws li cov uas Lonnmeter koom ua ke), ua kom cov tailings ua tau raws li qhov yuav tsum tau ua kom ceev rau kev khaws cia kom ruaj ntseg thiab tso cai rau kev rov ua dej dua. Cov tailings uas muaj qhov ceev tsis paub tseeb ua rau muaj kev pheej hmoo ntawm kev ua tsis tiav ntawm lub pas dej thiab kev siv av tsis zoo.
Kev siv cov tailings kom dav dav yuav tsum muaj cov tshuab uas nrhiav tau cov hlau uas tsis tau rov qab los. Cov voj voog uas siv sensor nrhiav tau cov hlau hauv cov kwj deg tailings, ua rau cov neeg ua haujlwm kho cov teeb tsa ntawm lub voj voog flotation, rov qab tau cov hlau uas ploj lawm, thiab txhawb kev rov qab tau tag nrho. Cov hlau uas tau rov qab los ntawm cov tailings tuaj yeem rov qab sib xyaw ua ke los ntawm kev rov ua dua, ua rau cov peev txheej siv tau zoo dua.
Kev Tswj Tus Nqi Tsim Khoom Los Ntawm Kev Txuag Zog Thiab Reagent
Kev tswj tus nqi tsim khoom hauv kev ua cov hlau ore flotation tsom mus rau kev txuag reagent thiab lub zog. Kev saib xyuas qhov ceev ntawm cov slurry tiag tiag ua rau muaj kev hloov kho qhov tseeb ntawm cov reagent. Kev tshuaj xyuas cov npuas raws li duab thiab cov thev naus laus zis tswj kev hloov kho txo cov koob tshuaj ntawm cov khoom sau thiab cov npuas - txo cov khib nyiab reagent thiab ua kom muaj kev sib cais cov zaub mov zoo tshaj plaws. Piv txwv li, kev siv cov dej ua haujlwm uas muaj cov khoom sau amine seem tuaj yeem txiav kev siv cov reagent tshiab txog li 46% yam tsis txo qis qib concentrate lossis rov qab.
Kev txuag hluav taws xob tshwm sim nrog rau kev siv cov tshuaj reagent zoo tshaj plaws. Kev siv hluav taws xob tsawg dua tuaj yeem ua tiav nrog kev ruaj khov ntawm cov slurry ceev thiab kev tswj cov txheej txheem parameter, pab los ntawm kev tawm tswv yim sensor thiab cov qauv kev kawm tshuab. Hauv kev ua kom tuab thiab lim, kev tswj hwm qhov ceev ntawm cov khoom noj kom tsim nyog txo cov sijhawm voj voog thiab kev siv zog ntawm lub lim dej. Tsis tas li ntawd, kev tiv thaiv cov kav dej hnav thiab txhaws - nrog cov khoom slurry ruaj khov thiab qhov ceev - txo cov nqi kho thiab ua rau kev ua haujlwm ntseeg tau.
Kev Ua Si Ntaus Pob Ntaus Pob
*
Kev Koom Tes Ua Haujlwm Siab Tshaj Plaws: Kev Tswj Xyuas Ruaj Khov thiab Kev Txhim Kho Kev Ua Haujlwm Zoo
Kev ruaj khov ntawm cov txheej txheem hauv cov txheej txheem flotation hlau yog ua tiav los ntawm kev sib xyaw ua ke qhov ntsuas qhov ceev nrog kev tswj hwm lub voj voog teb. Kev saib xyuas qhov ceev ntawm cov slurry tiag tiag yog qhov tseem ceeb; cov cuab yeej zoo liCov ntsuas qhov ceev ntawm Lonnmeter muab cov ntaub ntawv zaus siab, meej uas qhia txog kev txiav txim siab tswj hwm thiab tiv thaiv kev hloov pauv ntawm qhov ceev hauv cov txheej txheem ua cov ntxhia hauv cov hlwb flotation. Kev ntsuas qhov ceev tas mus li ua kom muaj kev sib cais ntawm cov ntxhia thiab gangue zoo, txhawb kev sib cais ntawm kev flotation, thiab tiv thaiv cov teeb meem kev ua haujlwm xws li lim dej txhaws, kev hnav cov kav dej, thiab kev hloov pauv ntawm qhov ceev ntawm cov khoom khaws cia.
Cov ntsuas qhov ceev ntawm Lonnmeter, nrog rau cov qhov yuam kev tsawg li ± 0.001 g / cm³, ua rau pom thiab kho qhov ceev ntawm cov slurry drift sai. Qib kev tswj hwm no ua rau cov hlau concentrate thickening ruaj khov, txhim kho cov concentrate thickening efficiency, thiab txo cov hlau ore tsis tau rov qab los hauv tailings. Cov lus teb ceev ceev yog lub hauv paus rau kev hloov kho dynamic ntawm cov reagents - collector thiab frother doses - thiab kev tswj hwm lub sijhawm tiag tiag ntawm cov kev hloov pauv ntawm lub voj voog flotation kom tswj tau cov hlau concentrate qib ruaj khov thiab txo kev siv zog lim. Cov kab ke sib xyaw ua ke siv cov voj voog tswj kev tawm tswv yim tsis siv neeg thiab cov qauv kev tswj hwm kev kwv yees (MPC) teb rau qhov hloov pauv ceev, tiv thaiv cov lim dej clogging thiab ua kom ntseeg tau tias ua raws li cov kev cai ceev cia tailings.
Kev sib npaug ntawm qhov zoo ntawm cov khoom sib xyaw thiab kev ua haujlwm rov qab hauv cov hlau ore flotation yuav tsum nkag siab txog kev sib cuam tshuam ntawm cov txheej txheem hloov pauv. Cov Lus Teb Nto Txoj Kev Tshawb Fawb (RSM) yog siv dav rau kev ua kom zoo dua ntau yam, tso cai rau cov neeg teb xov tooj kom ntsuas qhov cuam tshuam ntawm cov kev sib xyaw ua ke xws li pH qib, qhov loj me ntawm cov khoom me me, cov tshuaj reagent, thiab qhov nrawm ntawm aeration rau cov khoom tsim tawm thiab qib. Cov qauv sib xyaw RSM-ANN tau pom tias xa cov lus kwv yees qhov tseeb ntawm R² > 0.98 rau cov txheej txheem flotation. Central Composite Design (CCD) thiab cov txheej txheem ua kom zoo dua qub - xws li Generalized Reduced Gradient (GRG) - txhais cov txheej txheem zoo tshaj plaws, feem ntau ua rau cov hlau rov qab los txog 95% thaum txo qis SiO₂ kev ua qias tuaj. Cov qauv no txhawb nqa kev hloov kho cov tshuaj reagent kom raug, kev ua kom zoo dua ntawm cov khoom sau thiab cov khoom ua npuas, thiab kev txo cov khib nyiab reagent, uas yog qhov tseem ceeb rau kev tswj tus nqi tsim khoom thiab kev txhim kho qhov tseeb ntawm kev sib cais flotation.
Cov cuab yeej uas siv cov cuab yeej ntsuas lub cev thiab cov ntaub ntawv los ua qauv qhia ua ke ua ke kev ntsuas lub cev thiab kev ntsuas qhov ceev ceev. Cov lus teb rov qab los ntawm kev ntsuas qhov ceev ceev ua rau muaj kev hloov kho sai ntawm qhov nrawm, kev siv tshuaj reagent, thiab kev ua kom muaj pa, tswj cov hom phiaj ua haujlwm thoob plaws cov qib ore thiab cov mineralogies uas hloov pauv. Cov txheej txheem kawm tshuab, suav nrog cov ntxaib digital ntawm cov voj voog flotation thiab kev tshuaj xyuas duab AI-raws li froth, muab cov peev xwm tswj hwm uas kho tau sai rau qhov sib txawv ntawm cov khoom noj lossis cov slurry ceev. Cov cuab yeej simulation xws li JKSimFloat ntxiv txhim kho kev tsim hluav taws xob thiab cov tswv yim ua haujlwm los ntawm kev tso cai rau kev sim virtual "dab tsi-yog", txhawb kev hloov kho cov txheej txheem yam tsis muaj kev pheej hmoo rau cov khoom tsim khoom. Piv txwv li, kev hloov kho tam sim ntawd ntawm cov chaw teeb tsa hluav taws xob raws li kev ntsuas qhov ceev ntawm cov hlau ore ua rau qhov ceev ntawm cov tailings nyob hauv qhov txwv kev ua raws li thaum siv cov peev txheej ntau tshaj plaws.
Kev koom ua ke ntawm cov ntsuas qhov ceev rhiab heev xws li Lonnmeter nrog cov txheej txheem tswj kev kwv yees— suav nrog kev sib txuas lus metric-raws li lub raj-MPC—ua kom ntseeg tau tias qhov ruaj khov ntawm cov txheej txheem tau tswj hwm thoob plaws theem sib tsoo thiab flotation. Los ntawm kev siv cov txheej txheem saib xyuas tas mus li thiab cov txheej txheem teb hloov pauv, cov neeg ua haujlwm ua tiav ob qho tib si cov khoom zoo thiab cov nqi rov qab zoo hauv cov hlau ore flotation, thaum tib lub sijhawm tswj cov nqi ua haujlwm thiab tiv thaiv kev lim dej, cov kav dej, thiab cov teeb meem khaws cia tailings.
Cov Lus Nug Feem Ntau (FAQs)
Cov txheej txheem flotation hlau yog dab tsi thiab vim li cas slurry density thiaj li tseem ceeb?
Cov txheej txheem flotation hlau xaiv cais cov hlau muaj nqis ntawm gangue los ntawm kev txuas cov khoom me me rau cov pa hauv cov hlwb flotation. Qhov no ua rau muaj cov khoom siv siab nrog kev huv zoo dua. Slurry density yog qhov tseem ceeb hauv kev ua haujlwm sib cais flotation, cuam tshuam rau qhov faib cov khoom me me ntawm cov npuas thiab cov tailings. Kev tswj hwm kom zoo tiv thaiv cov teeb meem xws li kev ruaj khov ntawm cov npuas tsis zoo, txo qis kev rov qab, thiab kev lim dej. Kev tswj hwm cov slurry density ua kom muaj kev sib cais zoo ntawm cov minerals thiab gangue, kev tswj hwm kev ruaj khov ntawm cov txheej txheem, thiab kev ua haujlwm zoo tshaj plaws ntawm cov khoom siv downstream, suav nrog cov lim dej thiab cov thickeners.
Cov ntsuas qhov ceev ntawm cov hlau ore slurry pab tau li cas rau kev ua haujlwm ntawm lub voj voog flotation?
Cov ntsuas qhov ceev ntawm cov hlau ore slurry, xws li cov los ntawm Lonnmeter, muab kev ntsuas tas mus li, lub sijhawm tiag tiag ntawm cov pulp ceev ntawm cov ntsiab lus tswj tseem ceeb. Cov ntaub ntawv no ua rau muaj kev tswj hwm qhov ceev ntawm cov slurry circuit, uas yog qhov tseem ceeb rau kev tswj hwm cov xwm txheej sib cais sib xws. Cov lus teb tsis siv neeg tso cai rau kev hloov kho sai ntawm cov txheej txheem, suav nrog kev hloov kho cov tshuaj reagent thiab cov cua ntws, ua kom ntseeg tau tias kev sib cais flotation raug txhim kho. Cov txiaj ntsig no suav nrog kev tiv thaiv kev hloov pauv ntawm cov slurry ceev, kev hnav thiab kev tiv thaiv kev txhaws ntawm cov kav dej, thiab kev txuag cov peev txheej. Cov neeg ua haujlwm tuaj yeem tiv thaiv kev poob ntawm cov hlau tsis tau rov qab, txhawb kev ua haujlwm ntawm lub voj voog, thiab txo cov nqi tsim khoom los ntawm kev ua haujlwm ruaj khov, ua haujlwm zoo uas txhawb nqa los ntawm cov thev naus laus zis ntsuas raug.
Yuav ua li cas thiaj li tau txais txiaj ntsig zoo tshaj plaws ntawm cov khoom siv collector thiab frother hauv kev flotation?
Kev ua kom zoo dua ntawm cov khoom siv los sau thiab cov khoom ua npuas dej yog nyob ntawm cov ntaub ntawv ceev thiab cov txheej txheem tiag tiag. Kev ntsuas qhov ceev sib xws tso cai rau cov txheej txheem dosing kom hloov kho rau cov xwm txheej pub mis hloov pauv, txo cov khib nyiab reagent thiab txhim kho qhov tseeb ntawm kev sib cais flotation. Cov txheej txheem dosing siab heev txo qhov sib txawv, ua rau qib concentrate ruaj khov thiab txo cov nuj nqis ua haujlwm hauv cov chaw ua cov khoom siv minerals. Piv txwv li, kev ntxiv reagent tsis siv neeg, qhia los ntawm kev tawm tswv yim ceev online, txo ob qho tib si overdosing thiab underdosing scenarios uas yuav ua rau lub voj voog flotation tsis zoo thiab tsav tsheb ntau dua kev tswj hwm tus nqi tsim khoom.
Vim li cas kev ntsuas qhov ntom ntom ntawm cov hlau concentrate thiaj li tseem ceeb rau kev ua haujlwm ntawm cov nroj tsuag?
Kev ntsuas qhov ntom ntawm cov hlau uas ua rau cov hlau tuab yog qhov tseem ceeb rau kev tshem dej tawm zoo, ua kom ntseeg tau tias cov hlau tuab ua kom cov hlau tuab zoo dua thiab qib hlau tuab ruaj khov. Kev saib xyuas kom meej tiv thaiv cov lim dej txhaws, pab txo kev siv zog lim dej, thiab ua kom cov khoom ua tau raws li qhov xav tau ntawm cov dej noo rau kev khaws cia thiab xa khoom. Kev tswj cov hlau tuab zoo, txhawb nqa los ntawm lub ntsuas qhov ntom ntawm cov hlau tuab, tso cai rau kev tswj hwm dej sib npaug thiab lav tias cov tshuab lim dej ua haujlwm ntawm qhov ua tau zoo tshaj plaws, yog li txhawb nqa lub hom phiaj kev lag luam thiab kev siv tshuab ntawm lub Hoobkas.
Kev saib xyuas qhov ntom ntawm cov tailings txhim kho kev nyab xeeb ua haujlwm thiab kev siv cov peev txheej li cas?
Kev soj ntsuam qhov ceev ntawm cov hlau tailings rau kev siv dav dav ua lub luag haujlwm tseem ceeb hauv kev nyab xeeb, kev tiv thaiv ib puag ncig, thiab kev ruaj khov. Kev ntsuas qhov ceev ntawm cov hlau tailings pab cov nroj tsuag ua tau raws li qhov yuav tsum tau khaws cov hlau tailings thiab cov qauv kev cai rau kev khaws cia thiab kev tso tawm. Kev soj ntsuam tas mus li muab kev ceeb toom thaum ntxov ntawm cov txheej txheem tsis zoo lossis kev hloov pauv ntawm cov dej ntws, txo qhov kev pheej hmoo ntawm cov xwm txheej ib puag ncig thiab cov khoom siv hnav. Nws kuj tso cai rau kev kuaj pom cov hlau tailings tsis tau rov qab los hauv cov hlau tailings, muab cov sijhawm rau kev ua ntxiv thiab kev siv cov peev txheej zoo dua. Qhov no txhawb nqa kev suav tag nrho ntawm cov khoom siv ntws thiab sib haum nrog cov qauv niaj hnub rau kev tswj hwm cov nroj tsuag flotation ruaj khov.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-25-2025
