Izvo Zvinonyanya Kubatsira zveSodium Cyanide Heap Leaching yekubvisa Goridhe

Kubvisa goridhe kubva mumatombo egoridhe emhando yepamusoro (sodium cyanide heap leaching) inzira inoshandiswa zvakanyanya muindasitiri yekuchera goridhe kubva mumatombo emhando yepamusoro (low-grade ores). Maitiro aya anosanganisira kuunganidzira matombo egoridhe emhando yepamusoro kana kuti flotation tailings pajira rekugadzira uye kupfapfaidza cyanide solution pamusoro pematombo kuti goridhe nesirivha zvinyunguduke, zvichiita kuti goridhe rive negoridhe rekugadzirisa goridhe. Heano mabhenefiti makuru enzira iyi:

Mutengo - kubudirira

1. Kudyara mari shoma: Chimwe chezvakanakira zvikuru zveSodium cyanide heap leaching ndechekuti inoda mari shoma. Zvichienzaniswa nenzira dzakaoma dzekubvisa goridhe dzakadai sekugaya nekunyungudutsa goridhe, izvo zvinoda zvivakwa zvakakura nemidziyo, heap leaching inongoda zvinhu zvekutanga zvakaita se leaching pad, sisitimu yekuunganidza mhinduro, uye nzira yekutenderera mhinduro. Hapana chikonzero chekuvaka mafekitori makuru uye anodhura ekugadzirisa, izvo zvinoita kuti ive sarudzo inokwezva, kunyanya kune mabasa ekuchera madiki kusvika pakati kana kune migodhi ine zviwanikwa zvishoma.

2.Kuderedza mari yekushandisa:

• Kushandiswa kwesimba shoma: Maitiro ekubvisa simbi muhari ane simba shoma. Hazvisanganisiri mashandiro akasimba akadai sekukuya simbi kuita upfu hwakatsetseka mugomba rebhora, izvo zvinowanzoitwa mune dzimwe nzira dzekubvisa simbi. Kushanda kuri nyore kwekupfapfaidza mvura nekubvisa simbi muhari yesimbi kunoda simba shoma, zvichiita kuti mari yesimba iderere.

• Mari shoma ye reagent (zvichienderana nedzimwe nzira): Kunyangwe cyanide iri reagent inokosha uye kubata kwayo kunoda matanho akasimba ekuchengetedza, maererano nemaitiro ese ekubvisa goridhe, huwandu hwe cyanide hunodiwa pakubvisa goridhe hunogona kugadziriswa. Kana tichienzanisa nedzimwe nzira dzekubvisa goridhe, cyanide inogona kushanda zvakanaka mune mamwe mamiriro ezvinhu, kunyanya tichifunga nezvehuwandu hwakawanda hwematombo emhando yepasi anogona kugadziriswa uchishandisa nzira iyi.

Kukodzera kune yakaderera-giredhi ores

1. Kubvisa goridhe kubva muzvicherwa zvemhando yepamusoro: Kubvisa goridhe kubva muzvicherwa zvemhando yepamusoro (sodium cyanide heap leaching) kwakanyatsokodzera kurapa goridhe remhando yepamusoro (low-grade ores), kazhinji iro rine goridhe remhando yepamusoro (0.5 - 3g/t). Izvi zvakawedzera zvakanyanya huwandu hwezvicherwa zvegoridhe zvine pundutso. Kare, zvicherwa zvakawanda zvemhando yepamusoro zvaionekwa sezvisina pundutso mukuchera. Zvisinei, nekuvandudzwa kwetekinoroji yekubvisa goridhe kubva muzvicherwa zvemhando yepamusoro (heap leaching), zvicherwa izvi zvinogona kushandiswa zvine pundutso. Semuenzaniso, mune dzimwe nzvimbo uko zvicherwa zvegoridhe zvemhando yepamusoro (high-grade leaching) zvisingawanikwe, kuburitsa goridhe kubva muzvicherwa zvemhando yepamusoro kuburikidza nekuburitsa goridhe kubva muzvicherwa zvemhando yepamusoro (heap leaching) kwave chinhu chikuru chinoita kuti goridhe rigadzirwe.

2. Kushandiswa kwezviwanikwa zvisina kushandiswa kare: Zvinobvumira kushandiswa kwemhando dzakasiyana dzezviwanikwa zvisina kushandiswa kare, zvakaita semarara emugodhi, kusanganisira tsvina yemabasa ekuchera kare uye matombo emhando yepasi akasiyiwa panguva yekuchera. Nekugadzirisa zvinhu izvi, goridhe rekuwedzera haringogone kuwanikwa chete, asi zvinobatsirawo mukuderedza njodzi yekuchengetedzwa kwezvakatipoteredza inokonzerwa nekuchengetedza marara akawanda.

Maitiro ari nyore

1. Kushanda zviri nyore: Maitiro ekubvisa matombo mudura ari nyore pakushanda kwawo. Kana matombo emudura agadzirwa zvakanaka, basa guru rinosanganisira kuramba uchipfapfaidza mushonga wecyanide pamusoro pedura. Maitiro aya haadi vashandi vane hunyanzvi hwepamusoro pakushanda kwezuva nezuva. Vashandi vanogona kudzidziswa nekukurumidza kuti vaite mabasa akadai sekupfapfaidza mvura, kutarisa mwero wekuyerera kwemvura, uye kuunganidza masampuli. Kureruka uku kunobatsirawo kuderedza mari yevashandi inobatanidzwa nekudzidziswa uye kuhaya vashandi vane hunyanzvi hwepamusoro.

2. Matanho mashoma ekugadzirisa: Zvichienzaniswa nemaitiro akaomarara ekubvisa goridhe, kukwesha goridhe muzvikamu zvine matanho mashoma ekugadzirisa. Hapana chikonzero chemaitiro akaomarara ekuparadzanisa zvicherwa zvakaita sekukwesha froth, izvo zvinosanganisira matanho akawanda ekuwedzera ma reagents akasiyana kuti aparadzanise zvicherwa zvine goridhe kubva kuzvicherwa zvegangue. Mukukwesha goridhe muzvikamu, cyanide solution inosangana zvakananga neore iri muzvikamu, ichinyungudutsa goridhe nesirivha, zvichiita kuti maitiro ese ekubvisa ave nyore.

Kufambira mberi kwetekinoroji kunowedzera kushanda zvakanaka

1. Nzira dzekugadzira simbi dzakavandudzwa: Kuvandudzwa kwenzira dzekugadzira simbi dzakavandudzwa kwakavandudza zvikuru kushanda kweSodium cyanide heap leaching . Kune simbi dzisina kupinza zvakanaka kana kuti dzine ivhu rakawanda, simbi dzinogona kushandiswa kuvandudza kuyerera kwemvura yecyanide kuburikidza nesimbi. Nekuwedzera zvinhu zvakaita se lime kana Portland cement musimbi uye wozonyorovesa uye wobatanidza musanganiswa, kuumbwa kwenzira dzekugadzirisa simbi kunokurudzirwa. Izvi zvinoita kuti simbi ibatane zvakanaka pakati pesimbi yecyanide nezvicherwa zvine goridhe, zvichiita kuti goridhe riwande.

2. Kushandiswa kwezvinowedzera kuwedzera kucheneswa kwesimbi: Kuwedzerwa kwezvimwe zvinowedzerwa kunogona kuwedzera kuvandudza maitiro ekucheneswa kwesimbi. Semuenzaniso, kushandiswa kwezvinhu zvinoburitsa okisijeni senge oxygen yakachena kana calcium peroxide kunogona kuwedzera kugona kwe oxidation kwemvura inocheneswa, zvichiwedzera kunyungudika kwegoridhe. Pamusoro pezvo, zvinhu zvinoshanda pamusoro zvinogona kuwedzerwa kuti zvivandudze kunyoroveswa kwesimbi ne cyanide solution, zvichivandudza kushanda kwese kwese kwekucheneswa kwesimbi. Kufambira mberi uku kwehunyanzvi kwakaita kuti Sodium Cyanide heap leaching inyanye kushanda uye ibudirire mukubvisa goridhe kubva mumhando dzakasiyana dzesimbi.