Kugadzirisa Kunyanya Kushandiswa Kwesodium Cyanide muGoridhe Mugodhi Leaching

Muindasitiri yekuchera goridhe, nzira yekuisa goridhe mumatombo esimbi inoramba iri musimboti wekubvisa goridhe kubva mumatombo. Zvisinei, nyaya yekushandiswa zvakanyanya kweSodium cyanide panguva yekubviswa kwegoridhe mugodhi haingowedzere mari yekushandisa chete asiwo inokonzera njodzi huru dzezvakatipoteredza nekuchengetedzwa. Chinyorwa ichi cheblog chinotarisa zvikonzero zvikuru, nzira dzinoshanda dzekuona, uye mhinduro dzinoshanda dzekugadzirisa dambudziko iri rakajairika.

Kunzwisisa Zvinokonzera

1. Ore Hunhu

• Mineralogy Yakaoma : Matombo ane mineral yakasanganiswa yakaoma anogona kukonzera kushandiswa kwecyanide yakawanda . Semuenzaniso, mamineral esulfide anopindirana necyanide, zvichigadzira thiocyanate compounds. Arsenopyrite nepyrrhotite muore zvinogona kushandisa cyanide kuburikidza ne oxidation uye complexation reactions, zvichiibvisa kubva mukuita kwekubvisa goridhe.

• Kuwanda kweCarbon : Matombo ane Carbonaceous ane zvinhu zvakasikwa zvinonwisa gold-cyanide complexes, chiitiko chinozivikanwa se "preg-robbing." Izvi zvinomanikidza kuwedzerwa kwecyanide yakawanda kuti zvibatsire pakurasikirwa kwekushanda zvakanaka kwekubvisa, zvichikonzera kushandiswa zvakanyanya.

2. Maitiro Ekushanda

• Kusagadzikana Kusina Kukwana : Kusasanganiswa kwakakwana panguva yekubviswa kwesimbi kunokonzera kusabatana zvakanaka pakati pesimbi ne cyanide solution. Izvi zvinotadzisa kunyungudika kwegoridhe uye zvinoita kuti vashandi vawedzere cyanide yakawanda vachitarisira kuwedzera mwero wekuburitswa kwesimbi.

• Mazinga epH asina kunaka : Cyanidation inoenderana zvikuru nepH, ine huwandu hwakanaka hunowanzova pakati pe10.5 ne11.5. pH iri pasi pehuwandu uhwu inoita kuti cyanide ishanduke kuita gasi rehydrogen cyanide, zvichiita kuti ideredze kuwanikwa kwayo kuti inyungudike. Kune rumwe rutivi, pH yakakwira zvakanyanya inogona kukanganisa mhinduro yecyanide, zvichibatsirawo pakuwedzera kushandiswa kwayo.

3. Mvura Yakanaka

• Mvura Yakaoma : Mvura ine huwandu hwakawanda hwecalcium, magnesium, uye mamwe maion esimbi inogona kuita necyanide, zvichiita kuti pave nesimbi yakasviba isinganyunguduke. Maitiro aya anopedza cyanide mumushonga wekubuda, zvichiita kuti pave necyanide yakawedzerwa.

• Kuwanda kweOkisijeni Yakanyungudutswa : Kunyange zvazvo okisijeni ichikosha pakuoxidation yegoridhe panguva yecyanidation, huwandu hwakawanda hunogona kukurumidzisa oxidation yecyanide pachayo, zvichikonzera kuora kwayo nekukurumidza uye kushandiswa kwakawanda.

Maitiro Ekuona

1. Nguva dzose Sampling uye Analysis

Unganidza masampula emhinduro yeleaching pamatanho akasiyana ekuita, kusanganisira chikafu, chepakati, uye chekuburitsa mapoinzi. Ongorora aya masampuli eiyo cyanide concentration uchishandisa nzira dzakadai setitration, ion chromatography, kana colorimetric assays. Kuenzanisa iyo yakayerwa cyanide mazinga ane theoretical kukosha kunogona kubatsira kuona zvisirizvo maitiro ekushandisa.

2. Monitoring Process Parameters

Ramba uchitarisisa makiyi ekushanda ma paramita senge pH, tembiricha, kumhanya kweagitation, uye oxygen yemukati. Kutsauswa kubva kumhando dzakakwana kunogona kuratidza zvingangoitika zvinokonzeresa kunyanyisa kushandiswa kwecyanide. Shandisa otomatiki ekutarisa masisitimu anogona kukonzeresa maaramu kana ma paramita arasika kubva pamiganho yakatarwa.

3. Ore Characterization

Ita yakadzama mineralogical uye kemikari ongororo yeanouya ore batches. X-ray diffraction (XRD), scanning electron microscopy (SEM), uye atomic absorption spectroscopy (AAS) inogona kupa nzwisiso mukuumbwa kweore, zvichibatsira kufanotaura mashandisirwo ecyanide uye kugadzirisa maitirwo ekuchinja zvinoenderana.

Zvinoshanda Solutions

1. Ore Pretreatment

• Kurapa Kwekucheneswa Kwemafuta : Kune matombo ane sulfide minerals, nzira dzekurapa kwekucheneswa kwemafuta dzakadai sekugocha, kuoxidation kwepressure, kana bio-oxidation dzinogona kushandiswa. Maitiro aya anoputsa sulfide minerals, zvichideredza reactivity yavo ne cyanide uye kuvandudza kushanda kwegoridhe ukuwo zvichideredza kushandiswa kwe cyanide.

• Kubviswa kweKabhoni : Kana paine simbi dzeCarbon aceous, kubvisa kabhoni yakakangwa kana zvimwe zvinobvisa kabhoni kunogona kubatsira kubvisa mhedzisiro yekubvisa kabhoni. Izvi zvinobvumira cyanide kuti itarisire pakunyungudutsa goridhe pane kudyiwa nezvinhu zvekabhoni.

2. Process Optimization

• Kugadzirisa Kusagadzikana uye Kufefetera : Iva nechokwadi chekuti kufefetera kwakakodzera uye kufefetera kwakakodzera kukurudzira kusanganiswa kwakafanana uye kutamiswa kweokisijeni kwakakodzera. Ita bvunzo dzemuchina wekuongorora kuti uone kumhanya kwakakodzera kwekufefetera uye mwero wekufefetera kwemhando dzakasiyana dzematombo nemamiriro ekubuda kwemhepo.

• Kudzora pH : Isa masisitimu ekutonga pH otomatiki anogona kugadzirisa pH yemushonga unoburitsa mvura. Shandisa lime kana sodium hydroxide kuchengetedza pH iri mukati mehuwandu hwakakodzera, kudzivirira kuparara kwecyanide uye kuve nechokwadi chekuti goridhe rinonyungudika zvakanaka.

3. Kurapa Kwemvura

• Kupfavisa : Shandisa mvura yemushonga kubvisa maion anokonzera kuomarara. Ma "ion exchange resins" kana "lime softening" zvinogona kushandiswa kukonzera calcium ne magnesium ions, zvichideredza kukanganiswa kwawo ne cyanide solution.

• Kutarisira Okisijeni : Gadzirisa huwandu hweokisijeni muropa kuti ibude zvakanaka. Shandisa masensa eokisijeni kutarisa nekudzora huwandu hweokisijeni yakanyungudutswa, uchiita shuwa kuti yakakwana kuti iokisijeni yegoridhe iokisijeni asi kwete yakawandisa kuti ikonzere kuora kwecyanide.

4. Reagent Management

• Zvinhu Zvinotsiva Cyanide : Ongorora mashandisirwo ezvimwe zvinhu zvinobvisa tsvina zvakaita sethiosulfate, thiourea, kana chloride-based solutions. Izvi zvinogona kuderedza zvakatipoteredza uye kuderedza kushandiswa kwemvura zvichienzaniswa neSodium Cyanide , kunyanya kune mamwe marudzi esimbi.

• Kudzokorodza Mashandiro Ezvinhu : Shandisa masisitimu ekudzokorodza uye kudzokorodza cyanide. Matekinoroji akadai sekuchinjana kwemaion, kuhwina magetsi, uye kupfapfaidza membrane anogona kushandiswa kudzokorodza nekushandisazve cyanide kubva mumarara, zvichideredza kushandiswa kwese uye kugadzirwa kwemarara.

Nzira dzokudzivirira

1. Kudzidziswa kweVashandi

Ipa kudzidziswa kwakazara kune vashandi vemigodhi nekugadzirisa nezve cyanidation maitiro, mashandiro emidziyo, uye kugadzirisa. Vashandi vakanyatsodzidziswa vanogona kuona uye kugadzirisa matambudziko nekukasira, kuve nechokwadi chekuti nzira yekudzidzisa inofamba zvakanaka uye nemazvo.

2. Data Analytics uye Modelling

Shandisa maturusi e data analytics uye maitiro ekuenzanisa maitiro ekuongorora nhoroondo uye chaiyo-nguva data. Nekuona mafambiro uye hukama, vashandisi vanogona kufanotaura matambudziko angangove ane chekuita nekushandiswa kwecyanide uye kutora matanho ekuzvidzivirira.

3. Nguva Dzose Kuongorora uye Kuongorora

Ita nguva dzose mukati nekunze kuongororwa kweiyo cyanidation process. Aya maodhisheni anogona kubatsira kuona nzvimbo dzekuvandudza, kuve nechokwadi chekutevedzwa kwezvakatipoteredza nekuchengetedza mirau, uye kuchengetedza kushanda kwese kwekuita kwegoridhe leaching.

Mukupedzisa, kugadzirisa kushandiswa kwakanyanya kwe sodium cyanide mukubvisa goridhe kubva mumigodhi kunoda nzira dzakasiyana-siyana dzinosanganisira kunzwisisa zvikonzero, kushandisa nzira dzinoshanda dzekuongorora, kushandisa mhinduro dzakakodzera, uye kutora matanho ekudzivirira. Nekuita izvi, makambani emigodhi haangogone kuderedza mari chete asiwo kusimudzira kuchengetedzeka kwenzvimbo yemabasa avo ekuchera goridhe.