Cov lus qhia kom txo qis Sodium Cyanide hauv cov nroj tsuag kub

Tam sim no, feem ntau kub ua cov nroj tsuag siv Sodium cyanide raws li cov kub extraction tshuaj. Cov txheej txheem kub cyanidation tau txais tos los ntawm ntau tus tswv kub kub thoob plaws ntiaj teb vim nws cov txheej txheem yooj yim thiab tus nqi rov qab siab.

1. Txhim khu kev nce nqi thiab txhim kho Oxygen Supply Quality

Kev ua kom aeration thiab nce cov pa oxygen tuaj yeem txo qis kev noj cov kua dej tsis tsim nyog cyanide. Tam sim no, cov nroj tsuag kub cyanidation feem ntau siv tsis tshua muaj siab (0.2mpa) roj-dawb cua compressor rau cov khoom siv cua, thiab cov huab cua ntim ntawm 0.5-1.0m3 / min tank. Txhawm rau txhim kho qhov zoo ntawm cov khoom siv cua, koj teeb lub qhov me me ntawm qhov kawg ntawm cov pa xa hluav taws xob los tsim kom muaj ntau qhov me me npuas npuas, lossis nruab ib daim tshev valve los tiv thaiv kev rov qab.

2. Ua tib zoo tswj cov qib tooj liab ntawm Raw Ore

Tooj liab siv feem ntau ntawm cyanide hauv cov txheej txheem leaching. Piv txwv li, ib tsob ntoo kub cyanidation muaj qib tooj liab ntawm 0.548% hauv cov ore raw, thiab niam cawv ntawm thawj leaching muaj 1161mg / L tooj liab, uas siv 37.6% ntawm txhua xyoo cyanide noj. Vim muaj cov ntsiab lus tooj liab siab ntawm cov tshuaj dissolving, txhawm rau tswj cov kev ua haujlwm kub leaching ntawm cov tshuaj, Sodium Cyanide concentration nyob rau hauv slurry yuav tsum tau nce raws li, uas ntxiv tsub kom tus noj ntawm sodium cyanide. Yog li ntawd, tswj cov ntsiab lus tooj liab ntawm cov ore raw tuaj yeem tsis tsuas yog txo cov sodium cyanide noj los ntawm kev ua kom tooj liab, tab sis kuj txo cov sodium cyanide concentration hauv cov tshuaj leaching.

Txhawm rau txo qis qib ntawm tooj liab, koj tuaj yeem kho nws los ntawm flotation lossis lwm txoj hauv kev, thiab tom qab ntawd leaching kub tom qab tooj liab sib cais.

3. Tswj qhov sib piv ntawm CN- thiab O2 Concentration hauv Slurry

Thaum lub sij hawm kub leaching txheej txheem, huab cua thiab sodium cyanide yuav tsum tau ntxiv los xyuas kom meej lub leaching ntawm kub. Qhov diffusion tus nqi ntawm kub nyob rau hauv cov kev daws yog nyob ntawm tsis tsuas yog nyob rau hauv lub concentration ntawm CN- thiab O2 nyob rau hauv cov kev daws, tab sis kuj nyob rau hauv lub concentration ntawm CN- ib chav kub saum npoo, qhov concentration ntawm yaj O2. thaj tsam ntawm qhov kub thiab qhov tuab ntawm cov hluav taws xob ob txheej.

CN-/O2 = 4x (Dissolved oxygen diffusion coefficient / sodium cyanide diffusion coefficient)

=4×(2.76×10-5cm/s ÷1.83×10-5cm/s)=4×1.5=6

Qhov piv no yog hu ua qhov txwv yaj ion concentration tus nqi ntawm yaj kub.

Rau ntau hom ore, nws tus nqi tuaj yeem hloov kho hauv thaj tsam ntawm 4.6 txog 7.4 los txiav txim qhov txiaj ntsig zoo tshaj plaws. Yog tias ntau dhau sodium cyanide lossis huab cua ntxiv thaum lub sij hawm leaching, nws yuav tsis ua rau cov kub kub nce ntxiv thiab ua rau khib nyiab. Yog li ntawd, nyob rau hauv cov txheej txheem kub leaching, nws yog feem ntau yuav tsum tau soj ntsuam thiab tswj cov dawb cyanide thiab cov pa oxygen cov ntsiab lus nyob rau hauv cov kev daws teeb meem kom qhov ratio ntawm ob ntawm txog 6.

4. Tsim kom muaj qhov Dosage Balance ntawm Cyanide

Sodium cyanide yog tus neeg sawv cev tseem ceeb ntawm cov txheej txheem kub cyanidation. Yog li ntawd, qhov sib npaug ntawm cov tshuaj sodium cyanide yuav tsum tau kawm ntau zaus. Lub npe hu ua cyanide tshuav nyiaj li cas yog hais txog qhov sib npaug ntawm cov cyanide tawm los ntawm cov tshuaj leaching thiab cov kev siv tiag tiag ntawm sodium cyanide, uas muaj feem xyuam rau cov txheej txheem kev ntsuas, cov nqi nyiaj txiag, kev kho ib puag ncig thiab lwm yam nqi.

Ntxiv rau qhov tsim ntawm ntau yam complexes thiab cov tebchaw, qhov poob ntawm sodium cyanide kuj suav nrog cov adsorption ntawm av nplaum sludge, adsorption ntawm cov ntxhia hais thiab kev khiav tawm ntawm ib qho me me ntawm hydrogen cyanide. Kev noj yav dhau los yuav tsum suav txog li 90%. Yog tias nws qis dua tus nqi no, nws yuav tsum raug ntaus nqi rau qhov zoo ntawm sodium cyanide, cov khoom siv raw khoom, thiab cov dej sib npaug, lossis kev ntsuas hauv kev ua haujlwm, lossis "poob, xau, bubbling thiab to".

5. Tswj Tsim nyog Calcium Oxide (CaO) Concentration

Nyob rau hauv tus txheej txheem ntawm oxidative kub extraction, txiv qaub yuav tsum tau ntxiv.Thiab nws yog ib qho tseem ceeb heev kom muaj ib tug kom zoo calcium oxide concentration. Nws lub luag haujlwm tseem ceeb yog:

CaO tuaj yeem nce pH tus nqi ntawm cov kua qaub, txo cov concentration ntawm HCN tsim thiab txo cov volatilization ntawm HCN roj.

Vim tias qhov sib ntxiv ntawm Ca2+ hauv cov tshuaj, qhov leaching tus nqi ntawm tooj liab txo qis, tiv thaiv kev tsim ntawm Fe (CNS) 4. thiab cov concentration ntawm CNS-ions hauv cov tshuaj txo. Ca2+ tiv thaiv kev sib xyaw ntawm CN- nrog Cu thiab S, yog li txo qis kev noj cov tshuaj cyanide.

Tom qab rov sim dua, cov kws tshaj lij ntseeg tias nws tsim nyog ntxiv calcium oxide 12 g / kg.

nyob rau hauv xaus

Cov saum toj no yog 5 txoj hauv kev los txo cov sodium cyanide hauv cov nroj tsuag kub cyanidation. Hauv kev tsim khoom tiag tiag, tus nqi ntawm ntau lub ntsiab lus tuaj yeem hloov kho raws li qhov xwm txheej tiag tiag kom txo qis kev noj cov tshuaj sodium cyanide, txuag nqi, thiab txo qhov kev puas tsuaj ntawm cov dej khib nyiab cyanide rau ib puag ncig.

Yog tias koj muaj lus nug txog cov ntsiab lus saum toj no, lossis xav paub txog, koj tuaj yeem sab laj kev pabcuam hauv online lossis xa lus, peb yuav tiv tauj koj sai li sai tau!