Kub Pas Dej Leaching Method: Muaj Scope thiab Txheej Txheem Flow

cov pas dej kub leaching method muaj npe nrov rau nws txoj kev yooj yim hauv kev ua haujlwm, cov cuab yeej siv qis, thiab tus nqi - kev ua tau zoo, ua rau kev pib tsim khoom sai. Txawm li cas los xij, txoj kev no yuav tsum muaj ntau qhov chaw vim tias ntau lub pas dej yuav tsum tau ua kom tiav cov haujlwm leaching. Ntxiv mus, nws tsis haum rau txhua hom kub ores. Kab lus no yuav qhia txog qhov siv tau, txheej txheem ntws ntawm lub pas dej kub leaching txoj kev, nrog rau cov ntaub ntawv siv tswv yim.

Siv tau Scope ntawm Gold Pas Dej Leaching Method

Kub ores haum rau lub pas dej ua ke leaching txoj kev yuav tsum ua tau raws li peb cov txheej txheem ib txhij. Ua ntej, cov khoom kub yuav tsum muaj qhov loj me me. Qhov thib ob, cov ore yuav tsum yog qib qis lossis ultra-low-qib. Thib peb, cov ore nws tus kheej yuav tsum muaj qhov tsis zoo permeability. Piv txwv li, hlau oxide cap - hom ores uas muaj nplua - grained kub thiab oxidized quartz leeg ores nrog nplua - grained kub yog heev haum rau lub pas dej ua ke leaching txoj kev.

Cov txiaj ntsig rov qab los ntawm txoj kev leaching pas dej tuaj yeem ncav cuag 70 - 90%. Piv nrog rau CIL thiab CIP kub extraction txoj kev, lub pas dej ua ke leaching txoj kev nta cov nqi qis, ua rau nws yog ib qho kev daws teeb meem zoo rau kev txhim kho kev lag luam ntawm qib qis kub ores. Tsis tas li ntawd, nws txoj haujlwm yooj yim ua rau txo cov nqi zog. Txawm li cas los xij, lub pas dej leaching txoj kev cuam tshuam cov nqi tsim kho siab thiab yuav tsum tau siv sij hawm ntev leaching. Qhov no yog vim hais tias nws yog ib qho tsim nyog los tsim cov pas dej leaching thiab cov pas dej tsis muaj dej, kom ntseeg tau tias lawv tau xau - pov thawj thiab qhov tseem ceeb qhuav. Tom qab ntawd, cov ore yog muab tso rau hauv lub leaching pas dej ua ke, thiab cov leaching tov yog npaj nyob rau hauv lub barren kua pas dej ua ke ua ntej muab tso rau hauv lub leaching pas dej ua ke rau leaching. Tom qab ib lub sij hawm, cov tshuaj cev xeeb tub raug tso tawm rau kev hloov chaw.

Txheej Txheem Flow ntawm Kub Pas Dej Leaching Method

Kub pas dej leaching feem ntau tshwm sim nyob rau hauv percolation leaching tso tsheb hlau luam. Cov tso tsheb hlau luam no tuaj yeem ua los ntawm ntoo, hlau troughs, lossis cement. Lub tank hauv qab yog tiaj tus lossis me ntsis inclined, thiab lawv tuaj yeem ua tau ncig, duab plaub, lossis square hauv cov duab. Nyob rau hauv lub tank, ib tug cuav hauv qab ua los ntawm perforated acid - resistant daim hlau yog ntsia. Ib daim ntaub lim yog muab tso rau ntawm qhov tsis tseeb hauv qab, thiab daim phiaj ua los ntawm cov ntoo lossis corrosion-resistant hlau strips yog muab tso rau saum cov ntaub lim. Thaum leaching, cov ore yog loaded rau hauv lub tank, thiab cov leaching tus neeg sawv cev yog ntxiv los ntawm saum toj no. Cov tshuaj leaching ntws tawm ntawm qhov tsis tseeb hauv qab. Qhov cuav hauv qab ua haujlwm lim thiab txhawb nqa cov ore.

Lub pas dej leaching txheej txheem ntws yog raws li nram no: Cov kub - bearing ore crushed mus rau ib tug tshwj xeeb particle loj yog loaded rau hauv lub leaching tank. Ib qho alkaline cyanide tov yog ntxiv rau soaking, thaum lub sij hawm uas kub yog yaj nyob rau hauv cov tshuaj. Tom qab soaking rau ib lub sij hawm, ib zaug cov concentration thiab qib ntawm cov kua ua tau raws li qhov yuav tsum tau pom, cov kub - bearing tov (xws li cev xeeb tub) yog tawm ntawm lub hauv qab ntawm lub tank. Kub tau rov qab los ntawm kev hloov pauv nrog zinc flakes (hmoov) (activated carbon adsorption kuj siv tau). Cov leaching residue raug rau kev kho decontamination ua ntej muab pov tseg. Txhawm rau tshem tawm cyanide los ntawm leaching residue, tshuaj xws li sodium bisulfite thiab tooj liab sulfate tuaj yeem ntxiv.

Nws yuav tsum tau muab sau tseg tias lub sij hawm yuav tsum tau rau percolation tank leaching nyob ntawm tsis tsuas yog nyob rau hauv lub dissolution tus nqi ntawm cov kuab tshuaj nyob rau hauv cov minerals tab sis kuj nyob rau hauv tus nqi nkag mus rau cov hnyav los ntawm cov khoom txheej. Kev nkag mus rau hauv tus nqi feem ntau yog nyob ntawm cov khoom xws li qhov siab ntawm cov khoom thauj khoom, qhov porosity ntawm cov khoom, qib ntawm cov ntsiab lus ntawm cov xuab zeb, cov viscosity ntawm cov leaching tus neeg sawv cev, thiab cov khoom siv ntawm cov khoom nws tus kheej.