Ukusetyenziswa okubanzi kweentsalela zezimbiwa ligama elishushu kwibala lezemigodi kwiminyaka yakutshanje, kwaye uphando malunga nokusetyenziswa okubanzi kweentsalela zegolide nalo lwenziwe. Kuyaqondwa ukuba ukuveliswa kweentsalela zezimbiwa zegolide kwilizwe lam kufikelele ngaphezu kwe-1.5 yebhiliyoni yeetoni, kodwa izinga elibanzi lokusetyenziswa lingaphantsi kwama-20%. Okwangoku, eyona ndlela ifanelekileyo yokuqonda ukulahlwa kwegolide kungenankunkuma kwaye kungenabungozi. umsila wemigodi uquka iindlela ezimbini: ukuzaliswa ngaphantsi komhlaba kunye nokusetyenziswa kwemithombo.Inkqubo yokuzaliswa kwendabuko yemigodi yegolide kukugcwalisa i-tailings-grained tailings equleni, ngelixa i-tailings-grained tailings ifunjwe kwi-tailings pod.Ngenxa yokuba umxholo wegolide I-ore idla ngokuphantsi, ukwenzela ukwandisa ukufunyanwa kwemithombo yegolide, ngokuqhelekileyo kuyimfuneko ukwenza imisebenzi yokusila. Ngoko ke, i-tailings-grained tailings iqulethe eninzi, ngelixa i-coarse-grained tailings incinci, kwaye kuphela i-tailings-grained tailings igcwele phantsi komhlaba. , akunakwenzeka ukunciphisa ngokusisiseko inkunkuma eqinileyo kunye nokunciphisa amandla okugcina amachibi e-tailings. Ukugcina amachibi eentsalela zezimbiwa kusafuna umhlaba omninzi kwaye konakalisa indalo esingqongileyo.Ukulahlwa kweentsalela zegolide kuye kwaba ngumba omkhulu othintela uphuhliso loqoqosho oluzinzileyo lwemigodi yegolide.
NgoFebruwari 10, 2022, iSebe lezoShishino kunye neTeknoloji yoLwazi, iKomishoni yoPhuhliso kunye noHlaziyo lweSizwe, iSebe lezeNzululwazi nobuChwepheshe, iSebe lezeMali, iSebe lezeNdalo, iSebe le-Ecology kunye neNdalo, iSebe lezoRhwebo. , kunye noLawulo lukaRhulumente lweRhafu ngokudibeneyo lukhuphe "Ekushicilelweni nasekusasazeni ukuKhawuleza ukuPhakanyiswa kweMithombo yoShishino". “Isaziso ngeSicwangciso soPhumezo sokuSetyenziswa okuBanzi” sifuna ukuba ngo-2025, ukuqina kokuveliswa kwenkunkuma eqinileyo kwimizi-mveliso kumashishini abalulekileyo afana nentsimbi nentsimbi, isinyithi esingeyontsimbi, kunye namashishini ekhemikhali kwilizwe lam kuya kuncipha, umgangatho wosetyenziso olubanzi. yenkunkuma eninzi eqinileyo kwimizi-mveliso iya kuphuculwa kakhulu, ushishino lwemithombo ehlaziyekayo luya kuqhubeka luphuhla ngokusempilweni, kunye nemithombo yemizi-mveliso iya kusetyenziswa ngokubanzi. Ukusebenza kakuhle kuye kwaphuculwa kakhulu, kwaye izinga lokusetyenziswa kwenkunkuma eninzi eqinileyo kwimizi-mveliso liya kufikelela kuma-57%.
I-Sino-German Key Laboratory ye-Magnetoelectricity kunye ne-Intelligent Mineral Processing yeNkampani ye-Huate iqhuba inani elikhulu leemvavanyo zokuxhamla kwi-tailings yegolide kwindawo yaseYantai. Amacandelo abalulekileyo amaminerali eentsimbi zegolide zimbiwa ze-ganggue ezifana ne-quartz, i-feldspar kunye ne-calcite, kunye nexabiso elincinci le-Iron yomatshini, intsimbi yamagnetic, i-iron oxide, i-titanium oxide, i-iron silicate, i-iron sulfide kunye nezinye izinto ezingcolileyo. imisila yegolide ngokuqhelekileyo 200 umnatha 50-70%, ubungakanani amasuntswana iyunifomu ngokwentelekiso, kwaye iqulethe isixa esincinci sodaka olucolekileyo. Ukungcola okuphambili kwe-Fe2O3 umxholo ngu-1-3%, umxholo we-TiO2 ngu-0.1-0.3%, umxholo we-CaO ngu-0.12-1.0%, kwaye ubumhlophe be-tailings yegolide yi-5-20%. Kukho iiyantlukwano ezithile ekubunjweni kwee-tailings eziveliswa ngama-concentrators ahlukeneyo. Ezinye ii-tailings zinomxholo ophezulu we-SiO2, okanye ziqulethe i-spodumene, i-sericite, njl. Uninzi lwazo luhlobo lwe-feldspar-quartz uhlobo lwe-pegmatite, kunye nexabiso eliphezulu lokuphinda lisetyenziswe.
Inkampani yeHuate yaqulunqa "imagnetic separation-gravity separation" inkqubo edityanisiweyo yokuzuza, kwaye yafumana isigunyaziso selungelo elilodwa lomenzi wechiza ngoSeptemba 2020. Umxholo welungelo elilodwa lomenzi wechiza umalunga "nendlela ebanzi yokusetyenziswa kweentsalela zegolide ezinegolide, intsimbi kunye nefeldspar. Okwangoku, ngaphezulu kwe Izicelo ezilishumi ezinkulu zemizi-mveliso ziye zaqhutywa eYantai, eShandong, eyona inkulu inokusebenza iitoni ezingama-8,000 zemisila yegolide ngosuku. Kule nkqubo, izixhobo eziphucukileyo zoncedo ezifana nescreen sokungcangcazela, i-spiral chute, itafile eshukumayo, isahluli segubu. , ipleyiti yemagnethi emanzi eyomeleleyo isahluli kazibuthe, umsesane othe nkqo umahluli wemagnethi ephezulu, kunye ne-electromagnetic slurry separator magnetic zisetyenziswa ngokudibeneyo. Ngelixa ufumana umgangatho ophezulu we-feldspar ugxininise kwimisila, iimveliso ezixabisekileyo ezinje ngemagnetite, izimbiwa ezinegolide, imathiriyeli ekrwada yesamente, kunye nezinto ezikrwada zokwenza izitena nazo ziyafunyanwa ukuze kuqondwe ukusetyenziswa ngokupheleleyo kweentsalela zegolide kunye nokufezekisa ukukhutshwa kwe-zero kuyo yonke into. -indlela ejikelezayo.
Umsesane othe nkqo umahluli wemagnethi ephezulu kunye ne-electromagnetic slurry umahluli wemagnethi ephezulu isetyenziswa kwiprojekthi yeentsalela zezimbiwa zegolide.
Ixesha lokuposa: Mar-11-2022