Kupesvedzera Kwekukurudzira Mwero payero yeLeaching yeSodium Cyanide

1. ziviso

Kubvisa simbi dzeCyanide inzira inoshandiswa zvakanyanya muindasitiri yemigodhi pakubvisa simbi dzinokosha, kunyanya goridhe, kubva mumatombo. Sodium cyanide inoita basa rakakosha mukuita uku sezvo ichiita basa rayo nesimbi kuti igadzire macomplexes anonyunguduka, zvichiita kuti dziparadzaniswe nematombo eCyanide. Pakati pezvinhu zvakasiyana-siyana zvinogona kukanganisa kushanda kweCyanide leaching , stirving rate inokosha zvikuru. Chinyorwa chino chinangwa chekuongorora zvakadzama kuti stirving rate inokanganisa sei Leaching rate yeSodium cyanide.

2. Basa Rokukurudzira muCyanide Leaching

2.1 Kuvandudza Kufambiswa Kwevakawanda

Mukuita kwekubvisa cyanide, kusangana pakati peSodium Cyanide nesimbi iri muore kunoitika pakati pezvikamu zveore zvakasimba ne liquid cyanide solution. Kusanganisa kunobatsira kuvandudza kutamiswa kwema reactants ( sodium cyanide ne oxygen) pamusoro pezvikamu zveore uye kubviswa kwezvigadzirwa zve reaction kubva pamusoro. Kana stir rate yakawedzerwa, kuyerera kwemvura kutenderedza zvikamu kunowedzera kuvhiringidzika. Kutenderera uku kunoderedza ukobvu hwe boundary layer yakatenderedza zvikamu, inova nzvimbo ine concentration gradient ye reactants nezvigadzirwa. Nekuda kweizvozvo, kupararira kwe sodium cyanide ne oxygen kune particle surface kunowedzera, zvichikurudzira leaching reaction.

2.2 Kudzivirira Particle Sedimentation

Rimwe basa rinokosha rekukurudzira nderokudzivirira kusvibiswa kwezvidimbu zve ore, kunyanya munyaya ye ores ine yakakwirira ye slime, ivhu, kana shale. Aya ma particles akanaka anogona kugadzikana panguva yeleaching process, kuderedza nzvimbo yekubatana pakati pe ore ne cyanide solution nekudaro kudzikisira kugona kweLeaching. Nekuenderera mberi nekukurudzira pulp (musanganiswa weore uye mhinduro), zvimedu zvinochengetwa zvakamiswa, kuve nechokwadi chekubatana kweyunifomu nemushonga wecyanide mukati mekuita leaching.

3. Zvidzidzo zvekuedza pamusoro peKufurira kweKukurudzira Rate

3.1 Murabhoritari - Chiyero Maedzo

Kwakawanda murabhoritari - chiyero chekuedza chakaitwa kuongorora hukama pakati pekukurudzira mwero uye chiyero cheleaching yesodium cyanide. Muchiyedzo chakajairika, muenzaniso wesimbi inokuyiwa kusvika pakukura chaiko uye yozosanganiswa nemushonga wecyanide mureactor ine chibatiso. Chiyero chekukurudzira chakasiyana, uye chiyero cheleaching chinoyerwa pane imwe nguva. Semuenzaniso, mukuyedza pane goridhe-inotakura ore, pakawedzera mwero wekusimudzira kubva pa200 rpm kusvika 600 rpm, chiyero cheleaching chegoridhe (iyo inonyudzwa nesodium cyanide) yakawedzera zvakanyanya mumatanho ekutanga ekudonha. Nekudaro, kupfuura imwe nhanho inosimudzira (yakatenderedza 800 rpm mune iyi kesi), kuwedzera kweyero yeleaching kwakava kushoma kutaurwa.

3.2 Industrial - Scale Observations

Indasitiri - chiyero mashandiro anopawo ruzivo rwakakosha mukukanganisa kwehuwandu hwekukurudzira. Mune yakakura - cyanide leaching zvirimwa, iyo inosimudzira nhanho yematangi ekudonha inodzorwa nekungwarira. Zvakaonekwa kuti kana chiyero chekusimudzira chakanyanya kuderera, kune matunhu mutangi umo zvimedu zveore zvisina kunaka - zvakasanganiswa nemushonga wecyanide, zvichikonzera kudzikira kwese kwemazinga. Kune rumwe rutivi, kana chiyero chekukurudzira chakanyanya kukwira, chinogona kukonzera kupfeka zvakanyanya uye kubvarura pamidziyo, kuwedzera kushandiswa kwesimba, uye zvinogona kutotungamira mukuumbwa kwevortexes inogona kukanganisa maitiro ekucheka. Semuyenzaniso, mune yakakura - goridhe cyanidation chirimwa, kuwedzera iyo inosimudzira chiyero kubva payakajairwa 400 rpm kusvika 500 rpm yakakonzera kuwedzera kwe5% muyero yegoridhe leaching, asi kuwedzera kuriwedzera kusvika 600 rpm kwakangokonzera kumucheto kwe1% kuwedzera, nepo kushandiswa kwesimba kwakawedzera ne20%.

4. Optimal Stiring Rate Kutsunga

4.1 Kutarisa maitiro eOre

Iyo yakakwana yekukurudzira mwero wecyanide leaching inoenderana nezvakati wandei zvinhu, nehunhu hweiyo ore iri yekutanga kufunga. Kune ores ane hukuru hukuru hukuru, huwandu hwekusimudzira hunogona kudiwa kuti ive nechokwadi chekuti cyanide solution inogona kupinda mumapores uye kuita nemukati mezvikamu. Mukupesana, kune yakanaka-yakaomeswa ores, yakaderera yekukurudzira mwero inogona kukwana kuchengetedza zvimedu zvakamira uye kukurudzira kutamiswa kwehuwandu. Uyezve, mineralogy ye ore inokosha. Kana iyo ore iine zvicherwa zviri nyore oxidized kana kuita ne cyanide nekukurumidza kukurumidza, yakaderera inosimudzira mwero inogona kushandiswa kudzora maitiro ekuita uye kudzivirira kunyanyisa kushandiswa kwesodium cyanide.

4.2 Kuenzanisa Leaching Rate uye Mutengo

Kuwedzera kune ore maitiro, mutengo - kushanda kweiyo leaching process inoitawo basa mukuona iyo yakakwana yekukurudzira mwero. Mwero wepamusoro wekukurudzira kazhinji unoda simba rakawanda, izvo zvinowedzera mutengo wekushandisa wechirimwa. Naizvozvo, chiyero chinoda kurohwa pakati pekuwana yakakwira leaching mwero uye kuderedza kushandiswa kwesimba. Izvi zvinowanzobatanidza kuitisa ongororo dzehupfumi dzinofunga zvinhu zvakaita sekukosha kwesimbi iri kubviswa, mutengo we sodium cyanide, uye mutengo wesimba unoenderana nemhando dzakasiyana dzinokurudzira. Semuyenzaniso, kana mutengo wegoridhe wakakwira uye mutengo wesimba wakadzikira, mwero wekusimudzira zvishoma unogona kusarudzwa kuwedzera mwero wegoridhe. Zvakadaro, kana mutengo wesimba uchinyanya kunetseka, mwero wakaderera wekukurudzira unogona kusarudzwa kunyangwe ukaguma nekuderera zvishoma.

5. Matambudziko Akabatanidzwa Nekugadzirisa Kukurudzira Mwero

5.1 Equipment Limitations

Imwe yezvinetso mukugadzirisa nhanho yekukurudzira ndiyo miganhu yemidziyo. Dhizaini yematangi ekudonha, simba remamotor anotyaira zvinobatisa, uye simba remagetsi rezvipombi zvese zvinodzora huwandu hwekukurudzira mazinga anogona kuwanikwa. Mune zvimwe zviitiko, kukwidziridza michina kuti iwane yakakwira kana kuti yakanyatso kusimudzira chiyero kungada yakakosha mari yekudyara. Semuyenzaniso, kana chirimwa ichida kuwedzera nhanho inonyandura kupfuura yazvino inogumira, ingangoda kutsiva mota neakawanda ane simba uye kuisa ma impeller akasimba, izvo zvinogona kuita zvinodhura.

5.2 Kusagadzikana kwemaitiro

Kushandura chiyero chekukurudzira kunogonawo kukonzera kusagadzikana kwekugadzirisa. Kuwedzera kamwe kamwe kana kuderera muyero inokurudzira inogona kukanganisa mafambiro emvura mutangi reLeaching, zvichikonzera kusaenzana kwekugoverwa kweore particles uye cyanide solution. Izvi zvinogona kukonzeresa kusawirirana kwemazinga uye zvinogona kutotungamira mukuumbwa kwenzvimbo dzinopisa kana kutonhora mutangi, uko maitirwo emitengo angave akanyanya kana kuderera. Semuenzaniso, kana chiyero chekukurudzira chakadzikira nekukurumidza, zvimedu zveore zvinogona kutanga kugadzika mune dzimwe nzvimbo dzetangi, zvichikonzera kudzikira kwekuita kwese kwekuita leaching.

6. Mhedziso

Iyo inosimudzira chiyero ine mhedzisiro yakakosha pachiyero cheleaching yesodium cyanide mucyanide leaching process. Nekusimudzira kufambisa kwemazhinji uye kudzivirira particle sedimentation, chiyero chakakodzera chekukurudzira chinogona kuvandudza kushanda kweiyo leaching process. Nekudaro, kuona iyo yakakwana yekukurudzira mwero inoda kunyatsotarisisa maitiro eore uye mutengo - kushanda. Pamusoro pezvo, matambudziko akadai sekushomeka kwemidziyo uye kusagadzikana kwemaitiro anofanirwa kugadziriswa pakugadzirisa chiyero chekukurudzira. Kumwe kutsvagurudza munzvimbo ino kunogona kutarisisa mukugadzira tekinoroji inosimudzira uye kugadzirisa iyo yakazara cyanide leaching process yekuvandudza kudzoreredzwa kwesimbi dzakakosha uku ichideredza kukanganisa kwezvakatipoteredza uye mutengo.