Tsvagiridzo yeKugadzira Muedzo weKuderedza Sodium Cyanide Kushandiswa muCyanide Carbon-in-Pulp Plant.

1. ziviso

Muindasitiri yekuchera goridhe, kuchekwa kweCyanide inzira inoshandiswa zvakanyanya pakubvisa goridhe kubva mumatombo. Zvisinei, kushandiswa kweSodium cyanide , kemikari ine chepfu yakawanda, hakungogumiri panjodzi huru dzezvakatipoteredza uye kuchengetedzeka asiwo kunokonzera mari yakawanda. Kuderedza kushandiswa kweSodium Cyanide mucyanide . Zvigadzirwa zveCarbon -in-pulp zvave basa guru rekuvandudza kushanda zvakanaka kwehupfumi uye hushamwari hwezvakatipoteredza hwemaitiro ekugadzira. Chinyorwa chino chinopa mhedzisiro yebvunzo yekugadzira yakanangana nekuderedza kushandiswa kwesodium cyanide muchirimwa checyanide carbon-in-pulp.

2. Mabviro eDambudziko

Kushandiswa kwakanyanya kwesodium cyanide mu cyanide carbon-in-pulp zvinomera kunonyanya kukonzerwa nezvikonzero zvakawanda. Chekutanga, kuvepo kwekusvibiswa kwakasiyana-siyana mune ore, semhangura, zinc, uye iron, kunogona kuita necyanide, zvichikonzera kudyiwa kwehuwandu hwesodium cyanide. Kechipiri, kudzora kusiri iko kwemamiriro ekucheka, senge pH kukosha, tembiricha, uye aeration rate, zvinogona zvakare kutungamira mukuwedzera kudyiwa kwesodium cyanide. Pamusoro pezvo, kusashanda kwemidziyo yeLeaching uye nzira yekudzokorodza yecyanide mhinduro inogona kuwedzera dambudziko iri. Naizvozvo, zvinodikanwa kuita tsvakiridzo yakadzama nekuongorora kuti uwane matanho anoshanda ekuderedza kushandiswa kwesodium cyanide.

3. Nzira dzekutsvagisa

3.1 Ore Characterization

Danho rekutanga rekutsvagisa raive rekuita rondedzero yakadzama yeore inoshandiswa mucyanide carbon-in-pulp chirimwa. Kuumbwa kwekemikari, mineralogy, uye particle size kugovera ore zvakaongororwa. Ruzivo urwu rwakakosha pakunzwisisa zvingangoitika pakati pezvikamu zveore uye sodium cyanide uye nekugadzira nzira dzakakodzera dzekudzikisa kushandiswa kwesodium cyanide.

3.2 Optimization yeLeaching Conditions

Nhevedzano yekuyedza yakaitwa kuti ikwidze mamiriro e leaching. Mhedzisiro ye pH kukosha, tembiricha, aeration rate, uye leaching nguva pakushandiswa kwesodium cyanide uye chiyero chekubvisa goridhe zvakaongororwa. Kusanganiswa kwakasiyana kweiyi paramita kwakaedzwa, uye mamiriro akakwana akatemwa kuburikidza nekuongororwa kwakazara.

3.3 Kugadziriswa Kwechicherwa

Kuti kuderedze kukanganisa kwakashata kwetsvina mune ore pane sodium cyanide kushandiswa, nzira dzekugadzirira dzakaongororwa. Nzira mbiri dzekutanga dzekutanga, dzinoti flotation uye kugocha, dzakaedzwa. Nzira yekufambisa yakanangana nekuparadzanisa zvicherwa zvakakosha kubva kune tsvina, nepo nzira yekugocha yakashandiswa kuokisisa zvicherwa zve sulfide uye kubvisa zvimwe zvehutsvina zvinogona kudya cyanide.

3.4 Kuvandudzwa kweCyanide Recycling System

Kushanda kweiyo cyanide recycling system inobata zvakananga sodium cyanide kushandiswa. Mutsvagiridzo iyi, kuvandudzwa kwakaitwa kune cyanide recycling system. Tekinoroji nyowani nemidziyo zvakaunzwa kuti iwedzere kudzoreredza mwero wecyanide kubva kumaswe uye nekugadzirisa leaching. Pamusoro pezvo, mhando yemushonga wecyanide yakadzokororwa yakanyatsotariswa uye yakagadziridzwa kuti ive nechokwadi chekushandisa zvakare.

4. Mhedzisiro uye Kukurukurirana

4.1 Mhedzisiro yeLeaching Condition Optimization

Iyo optimization yemamiriro ekucheka yakave nemhedzisiro inoshamisa. Nokugadzirisa pH kukosha kune imwe nzvimbo yakakodzera (yakakomberedza 10 - 11), kuwedzera kutonhora kusvika ku30 - 35 ° C, uye kutonga chiyero cheaeration pa 0.5 - 1.0 L / min, kushandiswa kwe sodium cyanide kwakaderedzwa zvakanyanya. Panguva imwecheteyo, kutorwa kwegoridhe kwakaramba kwakagadzikana kana kutowedzera zvishoma. Mhedzisiro iyi yakaratidza kuti kudzora kwakaringana kwemamiriro ekuchenesa kunogona kusimudzira kuita pakati pegoridhe necyanide uku ichideredza kushandiswa kusingakoshesi kwesodium cyanide.

4.2 Mhedzisiro yeOre Pretreatment

Iyo ore pretreatment nzira dzakaratidzawo maitiro akanaka. Iyo flotation pretreatment yakapatsanura zvinobudirira kumwe kusvibiswa, semhangura uye zinc zvicherwa, kubva kune ore. Nekuda kweizvozvo, iyo sodium cyanide inoshandiswa panguva yakazotevera yeleaching process yakaderedzwa neinosvika 20%. Iko kugocha pretreatment, kunyangwe simba rakawanda - rakasimba, raive rakanyanya kushanda. Mushure mekugocha, maminerari e sulfide muore akaiswa oxidized, uye kushandiswa kwesodium cyanide kwakadzikira neinenge 30%. Nekudaro, iyo sarudzo yepretreatment nzira inofanirwa kuve yakavakirwa pane chaiwo maitiro eiyo ore uye iyo yakazara hupfumi uye yezvakatipoteredza kufunga kwechirimwa.

4.3 Kuvandudzwa kweCyanide Recycling System

Kuvandudzwa kweiyo cyanide recycling system yakawedzera zvakanyanya chiyero chekudzoreredza checyanide. Iwo matekinoroji matsva nemidziyo yakagonesa kudzoreredza chiyero checyanide kubva kumaswe kuti chiwedzere kubva kune chepakutanga 60% kusvika pamusoro pe80%, uye kunaka kweiyo cyanide mhinduro yakavandudzwa zvakare. Kuvandudza uku hakuna kungoderedza huwandu hwesodium cyanide itsva inodiwa pakugadzirwa asi zvakare yakaderedza kukanganiswa kwezvakatipoteredza kwekubuda kwecyanide.

5. Mhedziso

Kuburikidza neiyi bvunzo yekugadzira, akati wandei matanho anoshanda akawanikwa kuderedza sodium cyanide kushandiswa mucyanide carbon-in-pulp chirimwa. Kunatsiridza mamiriro ekuleaching, pretreating ore, uye kuvandudza cyanide recycling system zvese zvinogona kubatsira mukudzikisa sodium cyanide kushandiswa. Aya matanho haangogone kudzikisa mitengo yekugadzira chete asiwo anosimudzira kushanda kwezvakatipoteredza kwechirimwa. Nekudaro, zvinofanirwa kucherechedzwa kuti kuitwa kwematanho aya kunoda kunyatsoongororwa zvinoenderana nemamiriro chaiwo echirimwa chimwe nechimwe, tichifunga nezvezvinhu zvakaita seore zvivakwa, chiyero chekugadzira, uye kugona kwehupfumi. Tsvagiridzo yeramangwana inogona kutarisa kuenderera mberi nekuvandudza kushanda kwemaitiro aya uye kuongorora matekinoroji matsva kuti awane kuderedzwa kwakakosha mukushandiswa kwe sodium cyanide mu cyanide carbon-in-pulp process.