Cov ntsiab lus tseem ceeb cuam tshuam rau tus nqi rov qab kub hauv Sodium Cyanide Leaching

Introduction

Kev siv Sodium cyanide leaching yog ib txoj kev siv dav hauv kev lag luam kub los rho kub ntawm cov hlau. Txawm li cas los xij, qhov ua tau zoo ntawm kev rov qab kub hauv cov txheej txheem no yog cuam tshuam los ntawm ntau yam tseem ceeb. Kev nkag siab txog cov yam ntxwv no yog qhov tseem ceeb rau kev ua kom zoo dua ntawm cov txheej txheem leaching, nce kev rov qab kub, thiab txo cov nqi tsim khoom. Tsab xov xwm no yuav nkag mus rau hauv cov yam tseem ceeb uas cuam tshuam rau qhov nrawm rov qab kub thaum lub sijhawm Sodium cyanide leaching.

Sib tsoo Fineness

Ua ntej txheej txheem cyanide leaching, kub ore yuav tsum tau pretreated, nrog rau kev sib tsoo yog ib qho tseem ceeb kauj ruam. Lub hom phiaj ntawm kev sib tsoo yog kom ua tiav cov monomer dissociation ntawm kub, cais nws los ntawm gangue minerals ntau li ntau tau. Thaum cov kub nyob rau hauv lub ore yog finely embedded los yog encapsulated, ib tug tsim nyog sib tsoo fineness yog ib qho tseem ceeb. Yog tias qhov sib tsoo hnyav dhau lawm, cov khoom kub tsis tuaj yeem raug nthuav tawm, ua rau tsis tiav leaching thiab qis kub rov qab. Ntawm qhov tod tes, tshaj - sib tsoo tsis tsuas yog nce nqi ntawm kev sib tsoo, tab sis kuj coj qee qhov tsis zoo. Tshaj tawm hauv av tuaj yeem qhia ntau cov dej tsis huv rau hauv cov dej xau, uas tuaj yeem cuam tshuam nrog cov tshuaj cyanide, ua rau cov khib nyiab ntawm cyanide. Ntxiv mus, tshaj - sib tsoo tuaj yeem ua rau muaj teeb meem hauv cov khoom sib cais - kua dej sib cais, thiab tseem tuaj yeem ua rau poob ntawm cov kub yaj. Feem ntau, rau cov kub ore nrog nplua - grained ntuj kub, sib tsoo particle loj ntawm - 38 μm nrog cov ntsiab lus piv ntawm 75% tuaj yeem ua kom muaj txiaj ntsig zoo dua thaum tswj cov nqi sib tsoo.

Kev Siv Sodium Cyanide

Qhov ntau ntawm Sodium Cyanide ntxiv rau hauv cov txheej txheem leaching muaj qhov cuam tshuam loj rau qhov rov qab tau kub. Hauv qee qhov ntau thiab tsawg, qhov ntau ntawm cyanide yog sib npaug rau qhov leaching ntawm cov kub ore pulp. Thaum cov ntsiab lus cyanide tsawg, qhov cuam tshuam ntawm kub leaching tsis zoo, thiab qhov ceev leaching qeeb. Qhov no tsis yog tsuas yog ua rau lub sijhawm xav tau rau leaching tab sis kuj tseem yuav ua rau leaching tsis tiav ntawm kub, yog li txo qhov rov qab tau kub. Txawm li cas los xij, yog tias qhov ntau ntawm cyanide siab dhau, tom qab qhov ua tau zoo ntawm kub leaching mus txog qee qib, qhov nce ntawm qhov rov qab tau kub yuav tsis pom tseeb. Hloov chaw, nws yuav ua rau pov tseg ntawm cyanide thiab ua rau tus nqi tsim khoom nce ntxiv. Piv txwv li, thaum rho tawm cov kub concentrate los ntawm kub ore nrog cov khoom me me, Dosage ntawm sodium cyanide yog qhov tsim nyog dua ntawm 1.5 - 3.0 kg / t. Hauv kev tsim khoom tiag tiag, cov chaw khawb av yuav tsum txiav txim siab qhov ntau ntawm sodium cyanide raws li cov yam ntxwv ntawm lawv tus kheej ore thiab kev sim beneficiation.

Tus nqi ntawm txiv qaub

Txiv qaub yog ntxiv rau cov tshuaj cyanide raws li kev tiv thaiv alkali. Cyanide ions hauv cov tshuaj muaj cov tshuaj tsis ruaj khov thiab yooj yim rau volatilize li hydrogen cyanide gas, uas yuav ua rau poob ntawm sodium cyanide tov. Los ntawm kev ntxiv txiv qaub, lub pulp tuaj yeem khaws cia ntawm qhov tsim nyog alkalinity, uas yuav pab txhim kho kev ruaj ntseg ntawm cov tshuaj cyanide. Raws li kev tshuaj ntsuam xyuas, qhov leaching tus nqi ntawm kub kuj tseem zoo dua tom qab ntxiv txiv qaub. Thaum cov txiv qaub ntxiv yog 2 kg / t thiab siab dua, pH tus nqi ntawm cov pulp yog nyob nruab nrab ntawm 11 - 12. thiab cov leaching tus nqi ntawm cov kub hauv lub pulp yog qhov ruaj khov. Txawm li cas los xij, yog tias cov txiv qaub ntau dhau lawm, nws kuj tseem tuaj yeem cuam tshuam tsis zoo rau cov txheej txheem leaching, xws li hloov lub cev thiab tshuaj lom neeg lub cev, uas yuav cuam tshuam rau cov tshuaj tiv thaiv ntawm cyanide thiab kub.

Leaching Pulp Concentration

Qhov concentration ntawm leaching pulp yog ib qho tseem ceeb uas cuam tshuam ncaj qha rau leaching ceev thiab efficiency ntawm kub. Feem ntau hais lus, thaum lub concentration ntawm leaching pulp yog tsawg, lub fluidity ntawm lub pulp yog zoo, uas yog conducive rau kev sib cuag ntawm cov tshuaj cyanide thiab cov kub hais, thiab yog li cov leaching efficiency ntawm kub concentrate yuav siab dua. Txawm li cas los xij, qhov xwm txheej no yuav tsum tau nce ntxiv ntawm tus neeg sawv cev ntxiv. Nyob rau tib lub sijhawm, qhov loj ntawm cov khoom siv thiab cov nqi peev yuav nce ntxiv. Ntawm qhov tsis sib xws, yog hais tias lub pulp concentration siab dhau lawm, lub viscosity ntawm lub pulp yuav nce, lub fluidity yuav tsis zoo, uas yuav cuam tshuam qhov diffusion ntawm cov tshuaj cyanide thiab kev sib cuag nrog cov khoom kub, uas ua rau txo qis hauv leaching ceev thiab efficiency ntawm kub. Rau cov kub ore nrog ib tug nplua - grained particle loj, lub pulp concentration yuav tsum tau khaws cia ntawm li 20% - 33% kom ntseeg tau ib tug zoo leaching nyhuv. Hauv kev tsim khoom tiag tiag, cov nroj tsuag tsuas tuaj yeem tsim kho qhov concentration raws li qhov xwm txheej tshwj xeeb, tab sis nws yuav tsum tsis txhob siab dhau.

Lub Sijhawm Leaching

Lub sij hawm leaching kuj yog ib qho tseem ceeb cuam tshuam rau tus nqi rov qab kub hauv cov txheej txheem cyanidation. Xaiv lub sij hawm leaching kom tsim nyog tuaj yeem xyuas kom meej tias cov khoom kub tau yaj tag nrho. Txawm li cas los xij, thaum lub sij hawm dissolution ntawm kub hais, lwm yam impurities nyob rau hauv lub pulp yuav tseem yaj mus ntxiv. Raws li lub sij hawm leaching prolongs, qhov nruam dissolution thiab tsub zuj zuj ntawm cov impurities no yuav cuam tshuam nrog lub dissolution ntawm kub, thiab txawm inhibit qhov leaching ntawm kub. Tsis tas li ntawd, lub sij hawm leaching ntev dhau lawm yuav tsum muaj kev teeb tsa ntawm cov khoom siv leaching loj thiab qhov chaw, uas yuav ua rau cov nqi ntau lawm. Rau cov kub ore nrog ib tug nplua - grained particle loj, nws yog zoo dua kom lub cyanidation leaching lub sij hawm ntawm txog 4 teev. Yog hais tias lub sij hawm leaching yog ntau tshaj 24 teev, qhov leaching ntawm kub yog yuav inhibited, thiab cov kub ion concentration nyob rau hauv cov kua muaj nuj nqis kuj yuav txo.

xaus

Hauv cov txheej txheem Sodium cyanide leaching rau kev rho tawm kub, cov yam ntxwv xws li kev sib tsoo zoo, koob tshuaj ntawm sodium cyanide, qhov ntau ntawm cov txiv qaub ntsuab, leaching pulp concentration, thiab leaching lub sijhawm ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab qhov ceev ntawm kev rov qab kub. Cov chaw khawb av yuav tsum ua cov kev ntsuam xyuas kom ntxaws raws li cov yam ntxwv ntawm lawv cov hlau kom zoo dua cov yam ntxwv no. Los ntawm kev ua li ntawd, lawv tsis tsuas yog txhim kho qhov ceev ntawm kev rov qab kub tab sis kuj txo cov nqi tsim khoom thiab kev cuam tshuam rau ib puag ncig, ua tiav kev txhim kho ruaj khov hauv kev lag luam khawb kub.