Iyo Heap Leaching Project yemugodhi weGoridhe muAkmola Dunhu, Kazakhstan

Mumunda wekucherwa kwegoridhe, matekinoroji ekuchera uye emhando yepamusoro emakemikari reagents akakosha mukuwedzera kugadzirwa nekuvandudza mabhenefiti ehupfumi. Nhasi, tichatarisa pane a yangu yegoridhe muAkmola Region, Kazakhstan, uye ongorora zvakadzama shanduko dzinoshamisa dzakaunzwa mushure mekushandisa iyo yepamusoro-mhando. sodium cyanide zvinopihwa nekambani yedu.

I. Matambudziko eChirongwa cheMigodhi yeGoridhe mudunhu reAkmola

Mugodhi wegoridhe muAkmola Region ndewerudzi rwematombo akachinjwa e sericite uye rudzi rwegoridhe rine sulfide shoma. Saizi yegoridhe inoparadzirwa yakapfava zvikuru, haina kugoverwa zvakaenzana, uye ine hukama husina kunaka ne sulfides. Matombo aya ane goridhe remuno shoma, pyrite, chalcopyrite, bismuth-tellurium sulfides, pamwe ne galena, sphalerite, nezvimwewo, uye ndewegoridhe rinoyangarara risingadzoreki . Pakutanga kwekuchera, nzira dzechinyakare dzaive dzakaoma kugadzirisa matongo akaomarara akadaro, zvichikonzera kudzoserwa kwegoridhe kwakaderera , kutambisa zviwanikwa zvakanyanya, uye kuvandudzwa kwehupfumi kwakaoma.

II. Inovandudza Maitiro uye Basa Rakakosha reSodium Cyanide

Mushure mekuyedzwa kwakawanda, zvakaonekwa kuti nzira yekubvisa gold heap ndiyo nzira yakanaka kwazvo yekurapa matombo aya. Mukuita uku, sodium cyanide inoita basa rinokosha.

Sodium cyanide yemhando yepamusoro yatinayo yakaratidza kushanda kwakanaka mukubvisa gold leaching process yemugodhi uyu wegoridhe. Maitiro ekubvisa gold leaching ane simba rakasimba uye resainzi pamusoro pehuwandu hwesodium cyanide leaching agent: padanho rekutanga, huwandu hwesodium cyanide leaching agent hunodzorwa pa0.10%, uye simba rekutanga rekupfapfaidza i20 - 30L/(TPD); mushure medanho repakati, huwandu hunoderedzwa kusvika pa0.05% - 0.08%, uye padanho rekupedzisira, hunogadziriswa kusvika pa0.03% - 0.05%. Chiyero chenguva yekupfapfaidza i1:2. Kana paine matambudziko ari pachena ekubuda kwemvura mumurwi, huwandu hwekupfapfaidza uye huwandu hwenguva yekupfapfaidza huchagadziriswa nenguva. Mvura yakapfuma yakabviswa inonyungudutswa mukati memaitiro ese, uye simba rekunyungududza i12 - 20 L/(tpd). Kana giredhi remvura yakapfuma rakaderera pane 0.2g/m3 kana pasina purofiti yehupfumi, kubviswa kwemvura kunopera.

Mushure mekunge leaching yapera, kuitira kuti ive nechokwadi chekutevedzera kwezvakatipoteredza, solid calcium hypochlorite inopararira pamusoro pemurwi uye yobva yapfapfaidzwa nemvura. Kana iyo p(CN -) mumvura ye reflux isingasviki 0.5×10. disinfection inosangana nezviyero. Iyo leaching yakasara inogona kutakurwa kuenda kune slag yekurasa yadhi, uye tsvina yemvura inoburitswa zvakananga.

III. Zvakabudirira Zvinoshamisa

Munguva yese yekushandira pamwe chete, timu yedu yehunyanzvi yehunyanzvi yakapa rutsigiro rwehunyanzvi rwese - rwakakwana uye rwakazara - kumugodhi wegoridhe. Kubva pakutanga kweprojekiti, takaongorora zvakadzama munzvimbo yekuchera. Tichifunga nezvehunhu hwakaoma hwematombo emugodhi wegoridhe, takabatsira timu yemugodhi wegoridhe kugadzira hurongwa hwakadzama uye hwakarurama hwekubvisa matombo emugodhi kuti tive nechokwadi chekuti sodium cyanide inogona kushanda zvakanaka mumamiriro ezvinhu akakodzera.

Munguva yekugadzira goridhe, matekinoroji akamiswa pa - saiti kwenguva yakareba kuti atarise akasiyana maitiro ma paramita munguva chaiyo. Zvinoenderana neshanduko dzezviratidziro zvakakosha senge kusungirirwa kwesodium cyanide leaching agent, kupfapfaidza simba, uye kupfapfaidza interval ratio, mazano ehunyanzvi akapihwa nenguva uye kugadziriswa kwakaitwa. Semuyenzaniso, pakaonekwa matambudziko ekudonha mumurwi, nhaurirano dzehunyanzvi dzakarongwa nekukurumidza, uye chirongwa chekupfapfaidza chakagadziridzwa zvakare kuti ive nechokwadi chekufambira mberi kwakanaka kwemaitiro ekulea.

Panguva imwe cheteyo, takaitawo makwikwi akati wandei ekudzidzisa vashandi vemugodhi wegoridhe. Zvemukati zvekudzidziswa zvakafukidza kushandiswa kwakachengeteka kwesodium cyanide, kushanda uye kugadzirisa kwemurwi leaching michina, uye matambudziko akajairika uye mhinduro mukuita leaching. Kuburikidza nemusanganiswa wenzira dzedzidziso uye dzinoshanda dzekudzidzisa, hunyanzvi hwehunyanzvi uye mwero wekushanda kwechikwata chemugodhi wegoridhe zvakavandudzwa zvinobudirira.

Zviri pasi perutsigiro rwedu rwehunyanzvi hwekuenderera mberi nemasevhisi kuti mwero wekudzosa goridhe pamugodhi wegoridhe uyu wakabudirira kuwedzera kusvika pa77%. Kwete chete kugadzirwa kwegoridhe kwakawedzera zvakanyanya, asiwo mutengo wekugadzira wakaderedzwa zvakanyanya. Izvi zvakabudirira hazvingoratidzi kuita kwakanakisa kweyepamusoro-yemhando sodium cyanide asi zvakare zvinoratidza kusimba kwakasimba kwechikwata chedu chehunyanzvi.

Kune mabhizinesi emigodhi yegoridhe muKazakhstan nemamwe matunhu pasirese, kusarudza yepamusoro-yemhando sodium cyanide inhanho yakakosha yekusimudzira kukwikwidza uye kuwana budiriro inoenderera. Senyanzvi ye sodium cyanide mutengesi kunze, kambani yedu icharamba ichitsigira huzivi hwemhando yekutanga uye sevhisi - yakatarisana, uye ichipa emhando yepamusoro zvigadzirwa nemasevhisi eindastiri yepasi rose yezvicherwa zvegoridhe. Kana mugodhi wenyu wegoridhe uri kutsvagawo mhinduro dzakasimba uye dzine hupfumi, tinokugamuchirai kuti tibatane uye tovhura pamwe chete chitsauko chitsva chekucherwa kwegoridhe.