ʻO ka hoʻohana piha ʻana i nā huelo he huaʻōlelo wela i ka mahina ʻai i nā makahiki i hala iho nei, a ua hoʻokō ʻia ka noiʻi ʻana i ka hoʻohana piha ʻana i nā huelo gula. Ua hoʻomaopopo ʻia ʻo ka hana ʻana o nā huelo mine gula ma koʻu ʻāina ua hōʻea ma mua o 1.5 biliona tons, akā ʻo ka nui o ka hoʻohana ʻana ma lalo o 20%. ʻElua mau ala o kaʻu huelo: ka hoʻopiha ʻana i lalo a me ka hoʻohana ʻana i nā kumuwaiwai. ʻO ke kaʻina hana hoʻopiha maʻamau o nā mines gula ʻo ia ka hoʻopiha ʻana i nā huelo ʻeleʻele i loko o ka pūnāwai, ʻoiai ʻo nā huelo maikaʻi e hōʻiliʻili ʻia i loko o ka loko huelo. ʻO ka mea maʻamau ka haʻahaʻa, i mea e hoʻonui ai i ka loaʻa ʻana o nā kumuwaiwai gula, pono maʻamau ka hana ʻana i nā hana wili. No laila, he nui nā huelo maikaʻi, ʻoiai ʻoi aku ka liʻiliʻi o nā huelo koʻikoʻi, a ʻo nā huelo koʻikoʻi wale nō i hoʻopiha ʻia ma lalo o ka lepo. , ʻaʻole hiki ke hoʻemi maoli i ka ʻōpala paʻa a hoʻemi i ka hiki ke mālama i nā loko huelo. ʻO ka mālama ʻana i nā loko huelo he mea nui ka ʻāina a hoʻopōʻino i ke kaiapuni.
Ma Pepeluali 10, 2022, ka Ministry of Industry and Information Technology, National Development and Reform Commission, the Ministry of Science and Technology, the Ministry of Finance, the Ministry of Natural Resources, the Ministry of Ecology and Environment, the Ministry of Commerce. , a me ka State Administration of Taxation i hoʻopuka pū i ka "On Printing and Distributing Accelerating the Promotion of Industrial Resources". Pono ka "Notice on the Implementation Plan for Comprehensive Utilization" i ka makahiki 2025, e emi iho ka ikaika o ka hana ʻōpala paʻa ʻoihana i nā ʻoihana nui e like me ka hao a me ke kila, nā metala non-ferrous, a me nā ʻoihana kemika ma koʻu ʻāina, e emi iho ka pae hoʻohana piha. e hoʻomaikaʻi maikaʻi ʻia ka ʻōpala paʻa ʻoihana nui, e hoʻomau maikaʻi ʻia ka ʻoihana waiwai hou, a e hoʻohana nui ʻia nā kumuwaiwai ʻoihana. Ua hoʻomaikaʻi maikaʻi ʻia ka maikaʻi, a hiki i ka 57% ka nui o ka hoʻohana ʻana i nā ʻōpala paʻa ʻoihana nui.
ʻO ka Sino-German Key Laboratory of Magnetoelectricity and Intelligent Mineral Processing of Huate Company e alakaʻi i ka nui o nā hoʻokolohua pōmaikaʻi ma nā huelo gula ma Yantai. ʻO nā mea koʻikoʻi nui o nā huelo gula he mau mineral gangue e like me ka quartz, feldspar a me ka calcite, a me kahi mea liʻiliʻi o ka mechanical Iron, magnetic iron, iron oxide, titanium oxide, iron silicate, iron sulfide a me nā mea haumia ʻē aʻe. ʻO nā huelo gula ma ke ʻano he 200 mesh 50-70%, ʻano like ka nui o ka ʻāpana, a loaʻa kahi liʻiliʻi o ka lepo maikaʻi. ʻO ka maʻiʻo Fe2O3 haumia nui he 1-3%, TiO2 maʻiʻo he 0.1-0.3%, CaO maʻiʻo he 0.12-1.0%, aʻo ka keʻokeʻo o nā huelo gula he 5-20%. Aia kekahi mau ʻokoʻa i ka haku ʻana o nā huelo i hana ʻia e nā concentrators like ʻole. ʻO kekahi mau huelo he kiʻekiʻe SiO2 maʻiʻo, a i ʻole spodumene, sericite, etc. ʻO ka hapa nui o lākou no ke ʻano pegmatite ʻano feldspar-quartz, me ka waiwai hoʻohana hou.
Huate Company invented the "magnetic separation-gravity separation" hui beneficiation kaʻina, a loaʻa i ka invention patent mana i loko o Kepakemapa 2020. ʻO ka palapala patent e pili ana i "kahi hana hoʻohana piha o nā huelo gula i loaʻa i ke gula, hao a me feldspar. ʻumi mau noi ʻoihana nui i hana ʻia ma Yantai, Shandong, ʻo ka mea nui loa e hiki ke hana i 8,000 tons o nā huelo gula i kēlā me kēia lā. , pulu ikaika hoʻoheheʻe mākēneki, apo kūwae kiʻekiʻe gradient magnetic separator, a me electromagnetic slurry magnetic separator hoʻohana pū ʻia. ʻOiai ka loaʻa ʻana o ka feldspar concentrate kiʻekiʻe mai nā huelo, ua hoʻihoʻi hou ʻia nā huahana waiwai e like me ka magnetite, nā minerala gula, nā kumu sima, a me nā mea hana brick-maker no ka hoʻomaopopo ʻana i ka hoʻohana piha ʻana i nā huelo gula a loaʻa i ka hoʻokuʻu ʻole ʻana i nā mea āpau. - ala puni.
Hoʻohana ʻia ke apo vertical high gradient magnetic separator a me ka electromagnetic slurry high gradient magnetic separator i ka papahana huelo gula.
Ka manawa hoʻouna: Mar-11-2022