Kugwiritsiridwa ntchito kokwanira kwa michira ndi mawu otentha kwambiri pankhani ya migodi m'zaka zaposachedwa, ndipo kafukufuku wokhudza kagwiritsidwe ntchito kake ka michira ya golide wachitikanso.Zikumveka kuti kupanga michira ya migodi ya golidi m'dziko langa kwafika matani oposa 1.5 biliyoni, koma kuchuluka kwa magwiritsidwe ntchito ndi osachepera 20%. Mchira wa migodi umaphatikizapo njira ziwiri: kudzaza mobisa ndi kugwiritsa ntchito zipangizo.Njira yodzaza migodi ya golidi ndiyo kudzaza michira yambewu yolimba m'chitsime, pamene michira yabwino imawunjika mu dziwe la tailings. ore nthawi zambiri amakhala otsika, kuti achulukitse kupeza golide, nthawi zambiri ndikofunikira kuchita ntchito yopera.Choncho, michira yabwino imakhala ndi zambiri, pamene tailings coarse-grained ndi yochepa, ndipo michira yokhayokhayo imadzazidwa pansi., n'kosatheka kuchepetsa zinyalala zolimba ndikuchepetsa mphamvu yosungiramo maiwe a tailings.Kusunga maiwewa kumafunabe malo ambiri ndipo kumawononga chilengedwe. Kutaya michira ya golide kwakhala chinthu chachikulu chomwe chikulepheretsa chitukuko cha zachuma cha migodi ya golide.
Pa February 10, 2022, Unduna wa Zamakampani ndi Upangiri Waukadaulo, National Development and Reform Commission, Unduna wa Sayansi ndi Ukadaulo, Unduna wa Zachuma, Unduna wa Zachilengedwe, Unduna wa Zachilengedwe ndi Zachilengedwe, Unduna wa Zamalonda. , ndi State Administration of Taxation mogwirizana anapereka "Pa Kusindikiza ndi Kugawa Kupititsa patsogolo Kukwezeleza kwa Zida Zamakampani"."Chidziwitso pa Implementation Plan for Comprehensive Utilization" chimafuna kuti pofika chaka cha 2025, kuchulukira kwa zinyalala zolimba m'mafakitale monga chitsulo ndi chitsulo, zitsulo zopanda chitsulo, ndi mafakitale amankhwala m'dziko langa kuchepe, kuchuluka kwa kugwiritsidwa ntchito kwa zinyalala. za zinyalala zambiri zolimba za m'mafakitale zidzatukuka kwambiri, makampani opanga zinthu zongowonjezwdwa adzapitilira kukhala athanzi, ndipo chuma chamakampani chidzagwiritsidwa ntchito mokwanira.Kugwira ntchito bwino kwachitika bwino kwambiri, ndipo kuchuluka kwa zinyalala zolimba m'mafakitale kudzafika pa 57%.
Sino-German Key Laboratory of Magnetoelectricity and Intelligent Mineral Processing of Huate Company imachita zoyeserera zambiri zopezera ma tailings a golide kudera la Yantai.The waukulu mchere zigawo zikuluzikulu za tailings golide ndi gangue mchere monga quartz, feldspar ndi calcite, ndi pang'ono makina Iron, maginito chitsulo, okusayidi chitsulo, titaniyamu okusayidi, chitsulo silicate, chitsulo sulfide ndi zosafunika zina.The tinthu kukula osiyanasiyana. golide michira zambiri 200 mauna 50-70%, tinthu kukula ndi yunifolomu, ndipo lili pang'ono matope abwino.Zonyansa zazikulu za Fe2O3 ndi 1-3%, za TiO2 ndi 0.1-0.3%, za CaO ndi 0.12-1.0%, ndipo kuyera kwa michira ya golide ndi 5-20%.Pali kusiyana kwina mu kapangidwe ka michira yopangidwa ndi ma concentrator osiyanasiyana.Michira ina imakhala ndi zinthu zambiri za SiO2, kapena zili ndi spodumene, sericite, etc. Ambiri a iwo ali a feldspar-quartz mtundu wa pegmatite, wokhala ndi mtengo wogwiritsanso ntchito kwambiri.
Kampani ya Huate idapanga "maginito olekanitsa-mphamvu yokoka" yophatikizira kupindula, ndipo idalandira chilolezo chovomerezeka mu Seputembala 2020. Zomwe zili patent ndi "njira yokwanira yogwiritsira ntchito michira ya golide yokhala ndi golide, chitsulo ndi feldspar.Pakali pano, kuposa Ntchito khumi zazikulu zamakampani zachitika ku Yantai, Shandong, yayikulu kwambiri yomwe imatha kukonza matani 8,000 a michira yagolide patsiku. , chonyowa champhamvu maginito mbale maginito olekanitsa, ofukula mphete mkulu gradient maginito olekanitsa, ndi electromagnetic slurry maginito olekanitsa ntchito pamodzi.Ngakhale kupeza feldspar yokhazikika kuchokera ku michira, zinthu zamtengo wapatali monga magnetite, mchere wonyamula golide, zopangira simenti, ndi zopangira njerwa zimapezedwanso kuti zizindikire kugwiritsidwa ntchito bwino kwa michira ya golide ndikutulutsa ziro zonse. - njira yozungulira.
Cholekanitsa champhete chokwera kwambiri cha maginito olekanitsa ndi electromagnetic slurry high gradient maginito olekanitsa amagwiritsidwa ntchito mu projekiti ya golide.
Nthawi yotumiza: Mar-11-2022