Mazano ekuderedza Sodium Cyanide muGoridhe Processing Plants

Parizvino, mazhinji ekugadzira goridhe zvidyarwa anoshandisa Sodium cyanide sekemikari yekubvisa goridhe. Iyo goridhe cyanidation nzira inotambirwa nevazhinji varidzi vemigodhi yegoridhe pasi rese nekuda kwekuita kwayo kuri nyore uye kudzoreredza kwakanyanya.

1. Simbisa Inflation uye Kuvandudza Oxygen Supply Quality

Kuwedzera aeration uye kuwedzera kupihwa kweokisijeni kunogona kuderedza kushandiswa kusingakoshi kwemvura cyanide. Parizvino, zvidyarwa zvakawanda zvegoridhe cyanidation zvinoshandisa low pressure (0.2mpa) oiri-isina air compressor yekupihwa nemhepo, uye vhoriyamu yekupa mweya iri pakati pe0.5-1.0m3/min tank. Kuti uvandudze kunaka kwemhepo, iwe unoisa hood duku pamagumo epombi yekufambisa mhepo kuti ibudise nhamba huru yediki mabhubhu, kana kuisa cheki valve kudzivirira kudzokera shure.

2. Kunyatsodzora Mhangura Giredhi yeRaw Ore

Mhangura inodya chikamu chikuru che cyanide mukuita leaching. Semuyenzaniso, chirimwa chegoridhe cyanidation chine giredhi remhangura ye0.548% mumatombo mambishi, uye doro raamai rekutanga kudonha rine 1161mg/L mhangura, iyo inodya 37.6% yekudyiwa kwecyanide pagore. Nekuda kweiyo yakakwira mhangura yemhinduro yekunyungudika, kuitira kuchengetedza iyo goridhe leaching chiitiko chemhinduro, iyo Sodium Cyanide kusungirirwa mu slurry kunofanira kuwedzerwa maererano, izvo zvinowedzera kuwedzera kushandiswa kwe sodium cyanide. Naizvozvo, kudzora iyo mhangura yemukati meore yakasvibira haingogone kuderedza sodium cyanide inopedzwa nekunyungudutsa mhangura, asi zvakare inoderedza zvakanyanya iyo sodium cyanide concentration mune leaching mhinduro.

Kuti uderedze giredhi remhangura, unogona kuitora nekuyangarara kana dzimwe nzira, wobva wasiya goridhe mushure mekuparadzaniswa kwemhangura.

3. Dzora Muyero weCN- uye O2 Concentration muSlurry

Munguva yegoridhe leaching process, mweya uye sodium cyanide inofanirwa kuwedzerwa kuti ive nechokwadi chekudonha kwegoridhe. Kupararira kwegoridhe mumhinduro hakubvi chete pakusangana kweCN- uye O2 mumhinduro, asiwo pahuwandu hweCN- pachikamu chegoridhe pamusoro, huwandu hweO2 yakanyungudika. nzvimbo yepamusoro yezvimedu zvegoridhe uye ukobvu hwemagetsi maviri layer.

CN–/O2 = 4x(Kunyunguduka kweokisijeni inopararira coefficient/sodium cyanide diffusion coefficient)

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

Reshiyo iyi inodaidzwa kuti muganhu wakanyungudika ion concentration kukosha yegoridhe rakanyungudutswa.

Pamhando dzakasiyana dze ore, kukosha kwayo kunogona kugadziridzwa muhuwandu hwe4.6 kusvika 7.4 kuti uone iyo yakanakisa bhenefiti reshiyo. Kana yakawandisa sodium cyanide kana mhepo yakawedzerwa panguva yekuita leaching, haizo wedzera iyo leaching rate yegoridhe uye kukonzera tsvina. Naizvozvo, mukuita goridhe leaching process, zvinowanzodikanwa kuongorora nekudzora iyo yemahara cyanide uye iyo oxygen yemukati mumhinduro kuchengetedza reshiyo yevaviri panosvika 6.

4. Gadzira Chiyero Chiyero cheCyanide

Sodium cyanide ndiyo inonyanya kushandisa mumiriri wegoridhe cyanidation process. Nokudaro, chiyero che sodium cyanide dosage inofanira kuongororwa kakawanda. Iyo inonzi cyanide chiyero inoreva chiyero pakati pecyanide inoburitswa kubva kune leaching mhinduro uye chaiyo kushandiswa kwesodium cyanide, iyo ine hukama nemaitiro ehunyanzvi zviratidzo, mutengo wehupfumi, kurapwa kwezvakatipoteredza uye zvimwe zvinodhura.

Pamusoro pekugadzirwa kwezvakasiyana siyana uye macompound, kurasikirwa kwesodium cyanide kunosanganisirawo adsorption yevhu sludge, adsorption yemamineral particles uye kupukunyuka kweiyo shoma shoma yehydrogen cyanide. Iko kushandiswa kwekare kunofanirwa kuverengera nezve 90%. Kana yakaderera pane iyi kukosha, inofanirwa kuverengerwa kumhando ye sodium cyanide, mbishi ore zvikamu, uye chiyero chemvura, kana kuyerwa kuri kushanda, kana "kudonha, kudonhedza, kuputika uye kubuda".

5. Kudzora Inonzwisisika Calcium Oxide (CaO) Concentration

Mukuita kwekutsvaga kwegoridhe reoxidative, lime inofanira kuwedzerwa.Uye zvakakosha zvikuru kuchengetedza zvakakodzera calcium oxide concentration. Mabasa ayo makuru ndeaya:

CaO inogona kuwedzera iyo pH kukosha kweiyo leach mhinduro, inoderedza kuwanda kweHCN inogadzirwa uye inoderedza kuvhurika kweHCN gasi.

Pamusana pekuwedzerwa kweCa2 + mukugadzirisa, chiyero cheleaching chemhangura chakaderera zvakanyanya, kudzivirira kuumbwa kweFe (CNS) 4. uye kusanganiswa kweCNS-ions mukugadzirisa kwakaderera. Ca2 + inodzivirira kusanganiswa kweCN- neCu uye S, nokudaro zvinobudirira kuderedza kushandiswa kwecyanide.

Mushure mekuedzwa kwakadzokororwa, nyanzvi dzinofunga kuti zvine musoro kuwedzera calcium oxide 12 g/kg.

pakupedzisa

Idzi dziri pamusoro inzira 5 dzekudzikisa huwandu hwesodium cyanide mumiti yegoridhe cyanidation. Mukugadzirwa chaiko, huwandu hwezvinhu zvakasiyana hunogona kugadziridzwa zvinoenderana nemamiriro chaiwo kuderedza kushandiswa kwesodium cyanide, kuchengetedza mari, uye kuderedza kukuvadza kweiyo cyanide tsvina kune zvakatipoteredza.

Kana iwe uine chero mibvunzo nezve zviri pamusoro, kana uchida kuziva iyo, unogona kubvunza online vatengi sevhisi kana kutumira meseji, isu tichakubata iwe nekukurumidza sezvinobvira!