Rudzii rweOre Yakakodzera Cyanide Heap Leaching?

Cyanide heap leaching inzira inoshandiswa zvakanyanya muindasitiri yekuchera goridhe kugadzirisa mamwe marudzi e ores. Kunzwisisa hunhu hweores hwakakodzera muitiro uyu kwakakosha pakudzoreredza goridhe.

1. General Applicability: Low - Grade Ores

Maitiro ekubvisa matombo egoridhe eCyanide anowanzo shandiswa chete pakurapa matombo egoridhe emhando yepasi, kunyanya matombo eOxidized emhando yepasi . Mazhinji eaya matombo egoridhe emhando yepasi anowanikwa neoxidized ores. Zvichienderana nehukuru hwematombo egoridhe mukubvisa matombo emhando yepasi, kudyidzana pakati pematombo egoridhe necyanide leaching agent hakuna kusimba. Nekuda kweizvozvo, mwero wekubvisa matombo egoridhe hauna kukwira semamwe maitiro ekubvisa matombo egoridhe, izvo zvinoderedza kushandiswa kwawo kunyanya kune matombo emhando yepasi apo kushanda kwemutengo kunogona kuramba kuripo. Matombo egoridhe akakodzera kuchenesa matombo ecyanide anowanikwa ari pakati pe1.0 - 3.0 g/t, uye goridhe chete ndiro giredhi remadhayi egoridhe ega ega rinodarika 3.0 g/t.

2. Ore Structural and Compositional Characteristics

2.1 Goridhe Particle Hunhu

• Zvidimbu zvegoridhe zvakatsetseka kana kuti zvakati sandara : Hukuru hwegoridhe hwakaiswa mumatombo akakodzera hwakatsetseka kana kuti hwakati sandara. Chimiro ichi chinoita kuti zvive nyore kuti goridhe ribviswe necyanide. Zvidimbu zvegoridhe zvakatsetseka kana kuti zvakati sandara zvinogona kubata zviri nani necyanide leaching agent, zvichiita kuti goridhe rinyungudike panguva yekubvisa goridhe kubva mumatombo. Semuenzaniso, mumatombo akasanganiswa, goridhe rinowanzo kuwanikwa muzvidimbu zvakatsetseka zvakapararira mumatombo ese, izvo zvinoita kuti cyanide leaching ibviswe.

2.2 Porosity uye Permeability

• Matombo Akasununguka, Ane Maburi, uye Anoyerera : Matombo anofanira kunge akasununguka, ane maburi, uye anoyerera nekuda kwekuoxidation uye mamiriro ekunze. Izvi zvinobatsira kuti mushonga wecyanide upinde mudutu rematombo. Kana mushonga wecyanide ukakwanisa kusvika kune zvicherwa zvine goridhe, zvinogona kubuda. Matombo akaita seaya akamboparadzwa kwenguva yakareba anowanzo gadzira chimiro chine maburi, zvichiita kuti mushonga wecyanide upinde nepakati uye ubate zvidimbu zvegoridhe zviri mukati.

• Matombo ane Goridhe Rinowanikwa Nekupwanya : Kune matombo ane maburi mashoma pakutanga, goridhe rinogona kuburitswa pachena nenzira yekupwanya. Iri idanho rakakosha rekugadzirira usati wabvisa cyanide heap. Nekupwanya, zvivakwa zvemukati zvegoridhe zvinoputsika, zvichiita kuti cyanide leaching agent ikwanise kuwana goridhe. Mamwe matombo akaomarara ane goridhe rakavharirwa mukati anogona kugadziriswa nenzira iyi kuti akwanise kubviswa heap.

2.3 Kuumbwa Kwemakemikari

• Zvinhu Zvine Asidhi Yakaderera uye Zvinhu Zvisina Kushanda : Ore inofanira kunge iine zvinhu zvisina asidhi yakawanda uye zvinhu zvinogona kuita necyanide. Zvinhu zvine asidhi kana zvinhu zvinoshanda zvinogona kudya cyanide leaching agent. Semuenzaniso, kana paine huwandu hwakawanda hwezvicherwa zvine asidhi muore, zvinozoita necyanide, zvichideredza huwandu hwecyanide inowanikwa yekubvisa gold leaching uye nokudaro zvichideredza kushanda kwekuita kwekubvisa cyanide heap leaching.

• Hapana Goridhe - Inonyungudutsa kana Kuderedza Mvura : Matombo haafanire kunge aine zvinhu zvinonyungudutsa kana kunyungudutsa goridhe rakanyunguduka. Kana zvinhu zvakadaro zviripo, zvinogona kukanganisa kuburitswa kwegoridhe panguva yekubviswa kwe cyanide heap, zvichideredza mwero wekudzorerwa kwegoridhe. Semuenzaniso, mamwe matombo ane Carbon anogona kunyungudutsa goridhe rakanyunguduka, zvichidzivirira kugadziriswa kwaro kuti riwane goridhe.

3. Mhando dzeOre Yakananga

3.1 Yakaparadzirwa Oxidized Ore

Disseminated oxidized ores akakodzera kwazvo cyanide heap leaching. Mune aya ores, goridhe rinogovaniswa zvakaenzana munzvimbo yakanaka-yakaomeswa mukati meiyo oxidized rock matrix. Iyo oxidation maitiro anowanzo kuita kuti ore ive yakawanda, uye iyo yakatsetseka-yakaomeswa goridhe inowanikwa nyore kune cyanide mhinduro. Semuyenzaniso, mune imwe goridhe-ine matombo ejecha madhipoziti akave nemamiriro ekunze kwenguva refu uye oxidation, goridhe rinoparadzirwa mujecha matrix, uye cyanide murwi leaching inogona kunyatsoburitsa goridhe.

3.2 Sulfide Ore neGoridhe Isiri - Yakabatana Padyo

Sulfide ores umo goridhe risingagari pamwe chete nemaminerari esulfide anogonawo kurapwa necyanide heap leaching. Mune ores akadaro, goridhe haina kusungirirwa zvakasimba kune zvikamu zve sulfide. Kana ore yaiswa murwi - yakanyudzwa necyanide, cyanide inokwanisa kunyungudutsa goridhe nekusarudza pasina kunyanya kukanganiswa nemaminerari esulfide. Zvakadaro, kana goridhe rakanyatsobatanidzwa nemaminerari esulfide, iyo sulfide ingangoda kugadzirwa kare (senge kuburikidza nekugocha kana bio - oxidation) kuti goridhe riwanikwe pa cyanide leaching.

3.3 Vein Gold Deposit kana Placer Gold Deposit ine Diki Goridhe Particles

Vein goridhe deposits kana placer goridhe deposits ine zvidiki goridhe zvimedu kana yakakura chaiyo nzvimbo yegoridhe inokodzera cyanide heap leaching. Zvimedu zvidiki zvegoridhe zvine nzvimbo yakakura yakatarisana neiyo cyanide solution, inosimudzira kuita leaching. Mumitsipa yegoridhe madhipoziti, kana goridhe riripo mune yakatsetseka - yakaomeswa fomu mukati meiyo tsinga chimiro, uye tsinga - hosting dombo rine kwakakodzera porosity uye permeability, cyanide murwi leaching inogona kuve inoshanda yekubvisa nzira. Nzvimbo dzegoridhe dzakaiswa, uko goridhe rakanyungudutswa kuita zvidimbu zvidiki, zvinogonawo kugadziriswa uchishandisa nzira iyi.

Mukupedzisa, cyanide heap leaching inonyanya kukodzera kune yakaderera - giredhi ores ine chaiyo dhizaini uye yekugadzira hunhu, kusanganisira yakanakisa - yakavezwa goridhe, yakakodzera porosity, uye kushomeka kwezvinhu zvinokanganisa. Nekunzwisisa izvi zvinodikanwa zveore, mashandiro emigodhi anogona kukwidziridza kushandiswa kwecyanide murwi leaching kuti ishande uye inodhura - kudhirowa kwegoridhe kunoshanda.