Milandu Yowombetsa ndi Kukonza Migodi yaku Russia

Mayskoye Gold Mine

Mgodi wa golidi wa Mayskoye, womwe uli m'chigawo cha Chukotka ku Russia, ndi malo ofunika kwambiri okhala ndi golide okhala ndi mawonekedwe ovuta a geological. Thupi la ore ndi gawo lovuta kwambiri la mineralized breccia. Amapangidwa ndi mitsempha ya quartz yomwe imalowetsedwa mkati mwa miyala ya argillaceous altered. Mitsempha ya quartz iyi ndi magulu akuluakulu a golidi, ndipo mapangidwe awo amagwirizana kwambiri ndi zochitika zovuta za tectonic ndi hydrothermal m'deralo.

Pali mitundu iwiri ikuluikulu ya ore: the mchere woyamba, zomwe ndi zapamwamba kutsutsa. Chikhalidwe chokanachi chimachitika makamaka chifukwa cha kufalitsa bwino kwa golide mkati mwa mchere wa sulfide, monga pyrite ndi arsenopyrite. Mcherewu umatsekereza tinthu tating'ono ta golide, zomwe zimapangitsa kuti zikhale zovuta kuchotsa golideyo pogwiritsa ntchito njira wamba. The oxidized ore, kumbali ina, imapangidwa makamaka ndi quartz mica. Pamodzi ndi mica ya quartz, pali feldspar, kaolin, ndi sulfides zochepa. Njira ya okosijeni yasintha mineralogy ya ore, zomwe zimakhudzanso njira yochotsera golide.

Pokonza miyala ya oxidized, imapita ku chomera cha CIL (Carbon - in - Leach). Pamene zitsanzo za oxidized ore zidayamba kukonzedwa mufakitale ya CIL, kubweza golide kunali kochepa mokhumudwitsa. Izi makamaka zidachitika chifukwa cha "kuwotcha" kwa zinthu zomwe zimapezeka mu miyala. Zinthu zakuthupi zimalumikizana kwambiri ndi ma golide a cyanide, "akuba" golide panjira yotsitsa. Pofuna kuthana ndi vutoli, njira ziwiri zidakhazikitsidwa. Choyamba, kuyandama kaboni - zinthu zomwe zili ndi zinthu zidachitika. Pakuyandama uku, otolera ndi ma frother adasankhidwa mosamala ndikusinthidwa kuti asiyanitse zida zonyamulira kaboni ndi miyala ina yonse. Pambuyo pa kuyandama, michira yoyandamayo idasinthidwa. Njirayi idachepetsa "kuwotcha" katatu katatu. Zotsatira zake, kubweza golide kunakula kwambiri, kufika pamiyeso yomwe idapangitsa kuti ntchito yochotsa golide ikhale yopindulitsa.

Pankhani ya miyala yamtengo wapatali, pafupifupi 90% ya golide imapezedwa kudzera mu kuyandama. Njira yoyandama imaphatikizapo kugwiritsa ntchito ma reagents osiyanasiyana, kuphatikiza otolera, ma frothers, ndi ma modifiers. Ma reagents awa amakonzedwa mosamala kuti agwirizane ndi mchere wa sulfide womwe umakhala ndi golide. Mafuta a sulfide omwe amapezeka, olemera mu golide ndi mchere wa sulfide, kenako amatengedwa mtunda wautali kupita ku chomera m'chigawo cha Amur. Pachomerachi, chitsulocho chimakhala ndi oxidation, yomwe ndi gawo lofunikira kwambiri kuti liwononge mchere wa sulfide ndikutulutsa golide wotsekedwa. Pambuyo pa oxidation, Kutulutsa kwa cyanide tank zimachitika. Yankho la cyanide limakumana ndi golide, kupanga golide wosungunuka - ma cyanide complexes omwe amatha kukonzedwanso kuti apezenso golide.

Golide Mulu Wa Zinyalala za Golide

M'mabizinesi aku Russia - migodi, milu ya zinyalala ndi gwero lofunikira pakubwezeretsa golide wachiwiri. Milu ya zinyalala iyi ndi zinthu zomwe zidachitika m'mbuyomu migodi ndi kukonza. Ali ndi golidi wochuluka, yemwe sanapezeke mokwanira panthawi yoyamba yochotsa. Golide m'milu ya zinyalala nthawi zambiri amapezeka m'njira zosiyanasiyana, kuphatikiza tinthu tating'ono tagolide tating'onoting'ono, tinthu tating'ono ta golide, ndi golide wonyezimira pamwamba pa mchere wina.

Kafukufuku akuwonetsa kuti kuchuluka kwa golide kuchulukirachulukira percolation cyanidation akhoza kufika 75% - 82%. Percolation cyanidation ndi njira yomwe madzi osungunula a cyanide amapoperapo kapena amathira pa mulu wa zinyalala. Yankho la cyanide limadutsa mulu wa zinyalala, kuchitapo kanthu ndi golide ndikupanga golide wosungunuka - cyanide complexes. Ma complex awa amasonkhanitsidwa pansi pa mulu wa zinyalala kuti apitirize kukonzedwa.

Komabe, chifukwa cha kuchepa kwa mchere mu milu ya zinyalala, pali zovuta zingapo. Mchere wochepa - fineness minerals umapangitsa kuti njira yogwirira ntchito ikhale pang'onopang'ono. Izi zikutanthauza kuti yankho la cyanide limatenga nthawi yayitali kuti lilowe mu mulu wa zinyalala, zomwe zimachepetsa mphamvu yonse ya leaching. Kuphatikiza apo, kupewa kuwonongeka kosasunthika kwa mulu wa zinyalala ndikofunikira kwambiri. Kulemera kwa mulu wa zinyalala ndi momwe mankhwala amagwirira ntchito panthawi yokhetsa zinyalala zingapangitse mulu wa zinyalala kugwa kapena kusakhazikika. Kuti athane ndi mavutowa, kafukufuku wina akuwonetsa kuti mulu wa zinyalala uyenera kuchepetsedwa. Njira imodzi ndi yotentha - kuyanika kwa mpweya, kumene mulu wa zinyalala umawumitsidwa pogwiritsa ntchito mpweya wotentha kuti ukhale wabwino. Njira ina ndiyo kusakaniza mulu wa zinyalala ndi miyala yamtengo wapatali. Kusakaniza kumeneku kukhoza kupititsa patsogolo kapangidwe ka mulu wa zinyalala, kupangitsa kuti ikhale yabwino kwambiri ku percolation ya leaching solution ndi kupititsa patsogolo kukhazikika kwa mulu wa zinyalala.

Shaanxi United Chemical: Wokondedwa Wanu Wabwino

Kampaniyi imapereka sodium cyanide ndi zonse zotsika mtengo komanso zapamwamba. Sodium cyanide ndiye reagent yofunika kwambiri pakupanga golide. Mtengo - wogwira sodium cyanide woperekedwa ndi Shaanxi United Chemical zimathandiza mgodi kuchepetsa ndalama zopangira pamene zikuwonetsetsa zotsatira za leaching zapamwamba. Komanso, kampaniyo sikungoyima pazogulitsa. Amapereka chithandizo chokwanira chaukadaulo ku mgodi. Izi zikuphatikiza upangiri wa akatswiri pa mlingo woyenera wa sodium cyanide molingana ndi mikhalidwe yosiyanasiyana ya ore, chitsogozo cha kasungidwe kotetezeka ndi kasamalidwe ka sodium cyanide, komanso thandizo lokhazikitsa njira zoyendetsera bwino.