Kev txiav txim siab tseem ceeb hauv Gold Extraction los ntawm Crushing thiab Heap Leaching hauv Kub Mines

Kev rho kub los ntawm kev tsoo thiab rho cov kub tawm yog ib txoj kev siv dav hauv kev lag luam khawb kub . Yuav kom paub tseeb tias tau txais kub zoo thiab ruaj khov, cov neeg ua haujlwm yuav tsum tau ua tib zoo saib xyuas ntau yam thoob plaws hauv cov txheej txheem.

1. Kev soj ntsuam ntawm Ore Properties

Mineral Composition

Kev nkag siab txog cov ntsiab lus kub thiab cov ntxhia hauv cov ore yog qhov tseem ceeb heev. Cov kauj ruam no yuav pab txiav txim seb txoj kev heap leaching puas siv tau. Piv txwv li, yog hais tias cov ore muaj ib tug loj npaum li cas ntawm refractory minerals, ntxiv pretreatment yuav tsum tau.

Particle Loj Distribution

Tom qab crushing, qhov luaj li cas ntawm cov ore yuav tsum yog uniform. Cov khoom loj loj tuaj yeem ua rau tsis tiav leaching, thaum cov khoom me me tuaj yeem tsim cov nplua nplua, cuam tshuam cov tshuaj nkag mus.

2. Cov txheej txheem crushing

Cov khoom siv crushing

Xaiv cov crushers tsim nyog, xws li lub puab tsaig crushers thiab lub khob hliav qab crushers. Cov tshuab no yog tsim los rhuav tshem cov ore mus rau qhov loj me me. Piv txwv li, lub puab tsaig crushers yog zoo rau thawj crushing, thaum lub khob hliav qab crushers yog haum rau theem nrab thiab tertiary crushing.

Particle Loj Tswj

Feem ntau, qhov luaj li cas yuav tsum tau tswj ntawm 10 - 30 millimeters. Cov khoom loj loj txo cov leaching tus nqi, thiab cov khoom me me tuaj yeem ua rau muaj teeb meem nrog kev daws teeb meem vim yog kev tsim cov nplua.

3. Kev Npaj Heap Leaching Sites

Xaiv Rau Ntawm Qhov Chaw

Xaiv ib qho chaw tiaj tus thiab impervious rau heap leaching. Qhov no pab tiv thaiv cov kua dej tawm, uas tuaj yeem ua paug ib puag ncig.

Kev kho mob impermeability

Tso lub impermeable daim nyias nyias los tiv thaiv cov leachate los ntawm seeping rau hauv av. Qhov no yog qhov tseem ceeb rau kev tiv thaiv ib puag ncig thiab muaj txiaj ntsig leaching.

4. Kev xaiv thiab siv cov neeg ua haujlwm Leaching

Leaching Agents

Cov tshuaj sodium cyanide feem ntau siv ua cov tshuaj ntxuav. Qhov concentration ntawm Sodium cyanide yuav tsum tau tswj hwm nruj me ntsis hauv 0.05% - 0.1%. Qhov concentration siab dua yuav ua rau tus nqi nce, thaum qhov concentration qis dua yuav ua rau qhov leaching qeeb.

pH Tus nqi tswj

Khaws tus nqi pH ntawm cov tshuaj leaching ntawm 10 - 11. Qhov no yuav pab tiv thaiv kom tsis txhob decomposition ntawm cyanide, ua kom cov txheej txheem leaching zoo.

5. Heap Leaching Operations

Heap Height Control

Qhov siab heap feem ntau yog teem ntawm 3 - 6 meters. Ib lub heap siab dhau tuaj yeem cuam tshuam cov tshuaj nkag mus, thaum lub heap qis dhau txo qis kev tsim khoom.

Kev siv tshuaj tsuag

Tswj qhov kev siv tshuaj tsuag ntawm 5 - 10 L / m²·h. Kev txau ntau dhau ua rau kev daws teeb meem, thaum tsis txaus txau cuam tshuam rau cov nyhuv leaching.

6. Kev tswj ntawm Leachate

Leachate Collection

Xyuas kom muaj txiaj ntsig zoo ntawm cov dej xau kom tsis txhob poob thiab ib puag ncig muaj kuab paug. Ib qho zoo-tsim kev sau cov txheej txheem yog qhov tseem ceeb rau kev ua kom zoo tshaj kub rov qab.

Leachate Recycling

Rov ua dua cov leachate los txhim kho kub rov qab thiab txo cov reagent noj. Qhov no tsis tsuas yog nce efficiency tab sis kuj txo cov nqi.

7. Kev tiv thaiv ib puag ncig

Dej Khib Nyiab Kev Kho Mob

Kho cov leachate ua ntej tso tawm kom tsis txhob muaj kuab paug ib puag ncig. Qhov no tej zaum yuav muaj cov txheej txheem xws li tshuaj los nag lossis dej lim dej.

Kev tshem tawm tailings

Tshem tawm cov tailings kom raug tom qab leaching los tiv thaiv cov pa phem thib ob. Cov kev xaiv muaj xws li kev ruaj ntseg cia hauv tailings pas dej los yog ua ntxiv.

8. Kev Tswj Xyuas Kev Nyab Xeeb

Cyanide Management

Cyanide yog tshuaj lom heev. Ua raws li kev tswj hwm nruj kom tiv thaiv kom tsis txhob muaj kuab lom thiab lom. Qhov no suav nrog kev khaws cia, tuav, thiab kev thauj mus los ntawm cyanide.

Kev Tiv Thaiv Cov Neeg Ua Haujlwm

Cov neeg ua haujlwm yuav tsum hnav cov khoom tiv thaiv tsim nyog. Kev cob qhia tsis tu ncua kuj tseem tsim nyog los ua kom muaj kev nyab xeeb.

9. Cov khoom siv tu

Kev tshuaj xyuas tsis tu ncua

Tsis tu ncua tshuaj xyuas crushing, txau, thiab lwm yam khoom siv kom ntseeg tau tias kev ua haujlwm zoo li qub. Qhov no pab txheeb xyuas cov teeb meem uas yuav tshwm sim ua ntej lawv ua rau muaj kev cuam tshuam loj heev.

Kho raws sijhawm

Kho tej faults tam sim ntawd kom tsis txhob muaj ntau lawm qeeb. Cov cuab yeej tswj xyuas kom zoo yog qhov tseem ceeb rau kev tsim khoom tas mus li thiab ua tau zoo.

10. Tus nqi tswj

Reagent Nqi

Txhim kho kev siv cov tshuaj reagents kom txo tau cov nqi. Qhov no yuav suav nrog kev kho reagent concentrations raws li cov khoom ore thiab cov txiaj ntsig leaching.

Kev Tswj Kev Siv Hluav Taws Xob

Txhim kho cov txheej txheem crushing thiab txau kom txo tau lub zog noj. Qhov no tsis yog tsuas yog txo cov nqi xwb tab sis kuj txhawb nqa ib puag ncig sustainability.

Xaus lus, kev rho kub los ntawm kev tsoo thiab kev rho tawm cov pob zeb yuav tsum tau xav txog cov khoom siv ore, cov txheej txheem txheej txheem, kev tiv thaiv ib puag ncig, thiab kev tswj hwm kev nyab xeeb. Los ntawm kev ua tib zoo saib xyuas cov ntsiab lus tseem ceeb no, cov neeg ua haujlwm tuaj yeem txhim kho cov nqi rov qab tau kub thiab ua tiav kev txhim kho ruaj khov hauv kev lag luam khawb kub.