Ukusetshenziswa okuphelele kwe-tailings kuyigama elishisayo emkhakheni wezimayini eminyakeni yamuva nje, futhi ucwaningo mayelana nokusetshenziswa okuphelele kwe-tailings yegolide luye lwenziwa. Kuyaqondakala ukuthi ukukhiqizwa kwe-tailings yemayini yegolide ezweni lakithi kufinyelele ngaphezu kwamathani ayizigidi eziyizinkulungwane eziyi-1.5, kodwa izinga lokusetshenziswa okuphelele lingaphansi kwama-20%. Njengamanje, indlela engcono kakhulu yokuthola ukulahlwa kwe-tailings yemayini yegolide okungenamfucuza futhi okungenangozi kuhlanganisa izindlela ezimbili: ukugcwaliswa komhlaba kanye nokusetshenziswa kwezinsiza. Inqubo yendabuko yokugcwalisa izimayini zegolide ukugcwalisa i-tailings enezinhlayiya eziqinile emthonjeni, kuyilapho i-tailings enezinhlayiya eziqinile inqwabelana echibini le-tailings. Ngenxa yokuthi okuqukethwe kwe-ore yegolide kuvame ukuba phansi, ukuze kwandiswe ukutholakala kwezinsiza zegolide, ngokuvamile kuyadingeka ukwenza imisebenzi yokugaya. Ngakho-ke, i-tailings enezinhlayiya eziqinile iqukethe okuningi, kuyilapho i-tailings enezinhlayiya eziqinile incane, futhi i-tailings enezinhlayiya eziqinile kuphela egcwaliswa ngaphansi komhlaba. , akunakwenzeka ukunciphisa imfucuza eqinile futhi kunciphise amandla okugcina amachibi e-tailings. Ukugcina amachibi asele kusadinga umhlaba omningi futhi kulimaza imvelo. Ukulahlwa kwezindawo ezisele zegolide sekuyinto enkulu evimbela intuthuko yezomnotho esimeme yezimayini zegolide.
Ngomhlaka-10 kuNhlolanja 2022, uMnyango Wezimboni Nobuchwepheshe Bolwazi, iKhomishini Yentuthuko Nokuguqulwa Kazwelonke, uMnyango Wezesayensi Nobuchwepheshe, uMnyango Wezezimali, uMnyango Wemithombo Yemvelo, uMnyango Wezemvelo Nezemvelo, uMnyango Wezohwebo, kanye Nokuphathwa Kwentela Kahulumeni bakhiphe ngokubambisana umthetho othi “On Printing and Distribution Accelerating the Promotion of Industrial Resources”. “Isaziso Sohlelo Lokusebenza Lokusetshenziswa Okuphelele” sidinga ukuthi ngo-2025, ukuqina kokukhiqizwa kwemfucuza eqinile yezimboni ezimbonini ezibalulekile njengensimbi nensimbi, izinsimbi ezingenayo insimbi, kanye nezimboni zamakhemikhali ezweni lami kuzoncipha, izinga lokusetshenziswa okuphelele kwemfucuza eqinile yezimboni lizothuthukiswa kakhulu, imboni yemithombo evuselelekayo izoqhubeka nokukhula ngendlela enempilo, futhi imithombo yezimboni izosetshenziswa ngokuphelele. Ukusebenza kahle kuthuthukisiwe kakhulu, futhi izinga lokusetshenziswa okuphelele kwemfucuza eqinile yezimboni lizofinyelela ku-57%. Ngakho-ke, ukusetshenziswa kwemithombo yegolide kubalulekile.
I-Sino-German Key Laboratory of Magnetoelectricity and Intelligent Mineral Processing ye-Huate Company yenza inani elikhulu lokuhlola ukuzuza emigodini yegolide endaweni yaseYantai. Izingxenye eziyinhloko zamaminerali emigodini yegolide yizimbiwa ze-gangue ezifana ne-quartz, i-feldspar kanye ne-calcite, kanye nenani elincane le-mechanical Iron, i-magnetic iron, i-iron oxide, i-titanium oxide, i-iron silicate, i-iron sulfide kanye nokunye ukungcola. Ububanzi bosayizi wezinhlayiya zemigodi yegolide ngokuvamile buyi-200 mesh 50-70%, usayizi wezinhlayiya uyafana, futhi uqukethe inani elincane lodaka oluhle. Ukungcola okuyinhloko Okuqukethwe kwe-Fe2O3 kungu-1-3%, okuqukethwe kwe-TiO2 kungu-0.1-0.3%, okuqukethwe kwe-CaO kungu-0.12-1.0%, kanye nobumhlophe bemigodi yegolide kungu-5-20%. Kunezinhlobo ezithile zomehluko ekwakhiweni kwezinhlayiya ezikhiqizwa yizihlanganisi ezahlukene. Ezinye izinsalela zinokuqukethwe okuphezulu kwe-SiO2, noma ziqukethe i-spodumene, i-sericite, njll. Iningi lazo lingohlobo lwe-pegmatite lohlobo lwe-feldspar-quartz, olunenani eliphezulu lokusetshenziswa kabusha.
I-Huate Company yasungula inqubo yokuzuza ehlanganisiwe "yokuhlukaniswa kwe-magnetic separation-gravity", futhi yathola imvume ye-patent yokusungula ngoSepthemba 2020. Okuqukethwe kwe-patent kumayelana "nendlela ephelele yokusebenzisa i-gold tailings equkethe igolide, insimbi kanye ne-feldspar. Njengamanje, kuye kwenziwa izicelo zezimboni ezinkulu ezingaphezu kweshumi eYantai, eShandong, enkulu kunazo zonke engacubungula amathani angu-8,000 e-gold tailings ngosuku. Kule nqubo, kusetshenziswa imishini yokuzuza ethuthukisiwe njengesikrini sokudlidliza, i-spiral chute, itafula lokushaqeka, i-drum magnetic separator, i-wet strong magnetic plate magnetic separator, i-vertical ring high gradient magnetic separator, kanye ne-electromagnetic slurry magnetic separator. Ngenkathi kutholwa i-feldspar concentrate yekhwalithi ephezulu kusuka ku-tailings, imikhiqizo eyigugu njenge-magnetite, amaminerali aphethe igolide, izinto zokusetshenziswa ze-cement, kanye nezinto zokusetshenziswa zokwenza izitini nazo ziyatholwa ukuze kusetshenziswe ngokuphelele i-gold tailings futhi kufezwe ukukhishwa okuphelele ngendlela yonke.
Isihlukanisi sikagesi esiqondile esinomugqa ophezulu we-gradient kanye nesihlukanisi sikagesi esinomugqa ophezulu we-gradient sisetshenziswa kuphrojekthi ye-gold tailings
Isikhathi sokuthunyelwe: Mashi-11-2022