Cyanide kub ore beneficiation technology

Cyanidation yog ib qho ntawm cov txiaj ntsig tseem ceeb rau cov mines kub, thiab nws tuaj yeem muab faib ua ob hom: nplawm cyanidation thiab percolation cyanidation.Hauv cov txheej txheem no, cov txheej txheem sib xyaw cyanide kub rho tawm feem ntau suav nrog cyanide-zinc hloov txheej txheem (CCD thiab CCF) thiab tsis-filtered cyanide carbon slurry (CIP thiab CIL).Cov khoom siv sib cais kub feem ntau yog zinc hmoov hloov khoom siv, leaching stirring tank, tsawg noj sai desorption electrolysis system.

1. Zinc hmoov hloov khoom siv yog ib txoj hauv kev siv zinc hmoov los rho cov kub los ntawm cov kua muaj txiaj ntsig hauv cov txheej txheem hloov cyanide-zinc.Qhov kev tsim kho tam sim no feem ntau yog tsom rau cov khoom siv nyiaj kub ore uas muaj cov ntsiab lus siab nyiaj hauv kub ore.Tom qab ntxuav cov kua muaj txiaj ntsig thiab tshem tawm cov pa oxygen, cov khoom siv zinc hmoov hloov tau ntxiv kom tau cov av nkos kub.Thaum zinc hmoov (silk) yog siv los hloov cov nag lossis daus thiab rov qab kub, lub npe hu ua cyanide-zinc hloov txoj kev (CCD thiab CCF) tuaj yeem siv rau hauv kev xyaum ntau lawm, lossis zinc hmoov hloov tuaj yeem siv los kho cov kev daws teeb meem kim (leaching daws. ).Feem ntau hais lus, ntxiv rau cov mines kub nrog cov ntsiab lus nyiaj ntau dua, zinc hmoov hloov khoom siv kuj tuaj yeem siv los ua cov ntsiab lus kub uas xav tau los txhim kho lawv qib.

2. Ob chav impeller leaching stirring tank Lub ob lub impeller leaching stirring tank yog ib qho khoom siv ntxhia hauv cov txheej txheem carbon slurry kub extraction (CIP txoj kev thiab CIL).Nyob rau hauv lub luag thiab nplawm kev txiav txim ntawm ob lub impeller, lub slurry ntws downwards los ntawm qhov chaw, diffuses los ntawm ib puag ncig damping daim hlau, txhaj cua nyob rau hauv lub kawg ntawm ncej, sib tov nrog slurry thiab circulates upwards.Qhov kev daws teeb meem no tsim nyog rau cov ntawv thov nrog lub ntiajteb txawj nqus me me, tsis muaj viscosity thiab qis nag lossis daus., thaum lub ore particle loj yog siab tshaj -200 mesh thiab kub tov concentration yog tsawg tshaj li 45%, ib tug uniform suspended sib tov yuav tsim.Kev nqus thiab lwm yam kev sib xyaw ua haujlwm.Nyob rau hauv cov txheej txheem CIP ntawm kub deposits, leaching thiab adsorption yog ywj siab ua hauj lwm.Hauv kev ua haujlwm nqus, cov txheej txheem leaching yog ua tiav.Qhov loj, qhov ntau, thiab kev ua haujlwm ntawm lub tank adsorption yog txiav txim siab los ntawm cov adsorption tsis.Cov txheej txheem CIL ntawm cov nyiaj tso nyiaj kub suav nrog kev ua haujlwm leaching thiab adsorption ib txhij.Txij li thaum kev ua haujlwm leaching feem ntau yuav siv sij hawm ntev dua li kev ua haujlwm adsorption, qhov loj ntawm cov leaching stirring tank yog txiav txim siab los ntawm cov leaching tsis los txiav txim seb tus nqi ntawm aeration thiab dosing.Vim tias qhov nqus dej muaj feem cuam tshuam nrog kev ua haujlwm ntawm cov dej kub yaj, 1-2 qib ntawm kev nqus dej ua ntej feem ntau ua ua ntej ntug dej kom nce cov concentration ntawm cov dej yaj hauv lub tank adsorption thiab nce lub sij hawm leaching.

3. Tsawg-siv ceev desorption electrolysis system.Cov khoom siv hluav taws xob qis qis qis qis yog cov khoom siv kub ore hnav khaub ncaws uas desorbs thiab electrolytes kub-loaded carbon los tsim cov av nkos kub hauv qhov kub thiab txias.Cov kub-loaded carbon slurry yog xa mus rau cov pa roj carbon sib cais screen (feem ntau yog ib tug linear vibrating screen) los ntawm ib tug carbon twj tso kua mis los yog cua lifter.Lub npov saum npoo yog ntxuav nrog dej huv kom cais cov pa roj carbon ntawm slurry.Cov pa roj carbon kub nkag mus rau hauv cov pa roj carbon cia tank, slurry thiab dej ntws tawm.Nkag mus rau thawj ntu ntawm lub tank adsorption.Siv lub tshuab hluav taws xob qis thiab ceev ceev desorption electrolysis ntxiv rau cov anions tuaj yeem hloov Au(CN)2- nrog Au(CN)2-, thiab cov kua muaj txiaj ntsig tau txais los ntawm desorbing kub-loaded carbon tuaj yeem rov qab cov khoom kub los ntawm txoj kev ionization.Kev siv hluav taws xob tsawg tsawg sai desorption electrolysis system muaj qhov desorption ntau dua 98% nyob rau hauv qhov kub siab (150 ° C) thiab siab siab (0.5MPa), thiab lub zog noj tsuas yog 1/4 ~ 1/2 ntawm cov pa. qhov system.Kev sib xyaw ua ke uas tsis muaj tshuaj lom thiab ua rau muaj cov pa roj carbon activator, uas tuaj yeem tsim cov pa roj carbon monoxide.Cov pa roj carbon monoxide tsis tas yuav rov tsim dua los ntawm kev tua hluav taws, uas txuag cov nqi ntawm cov pa roj carbon monoxide.Cov kub slurry yog qib siab, tsis tas yuav rov qab electrolysis, thiab yooj yim rau rho tawm.Nyob rau tib lub sijhawm, cov khoom siv hluav taws xob qis qis qis kuj tseem siv peb qhov kev ntsuas kev nyab xeeb, uas yog kev txawj ntse ntawm nws tus kheej, tsis siv neeg siab txwv thiab txo cov txheej txheem, thiab kev pov hwm kev nyab xeeb valve.