Kushandiswa kwakazara kwezvicherwa zvegoridhe ishoko rinopisa mumunda wemigodhi mumakore achangopfuura, uye tsvakiridzo pamusoro pekushandiswa kwakazara kwezvicherwa zvegoridhe yakaitwawo. Zvinonzwisisika kuti kugadzirwa kwezvicherwa zvegoridhe munyika yangu kwasvika matani anopfuura bhiriyoni 1.5, asi mwero wekushandiswa kwakazara uri pasi pe20%. Parizvino, nzira yakanakisisa yekuwana kuraswa kwezvicherwa zvegoridhe zvisina marara uye zvisina njodzi inosanganisira nzira mbiri: kuzadza pasi pevhu uye kushandiswa kwezviwanikwa. Maitiro ekuzadza echinyakare emigodhi yegoridhe ndeyekuzadza zvicherwa zvine matombo akakora mugomba, nepo zvicherwa zvine matombo akakora zvakaunganidzwa mudziva rezvicherwa. Nekuti huwandu hwegoridhe hunowanzova hwakaderera, kuitira kuti zvicherwa zvegoridhe zviwanikwe zvakanyanya, zvinowanzodiwa kuita mabasa ekukuya. Naizvozvo, zvicherwa zvine matombo akakora zvine zvakawanda, nepo zvicherwa zvine matombo akakora zvishoma, uye zvicherwa zvine matombo akakora chete ndizvo zvinozadzwa pasi pevhu. , hazvigoneke kuderedza zvakanyanya marara akasimba uye kuderedza kugona kwekuchengetedza kwemadziva ezvicherwa. Madziva ekuchengetedza dhaka regoridhe achiri kuda ivhu rakawanda uye anokuvadza nharaunda. Kuraswa kwedhaka regoridhe kwave chinhu chikuru chinotadzisa kufambira mberi kwehupfumi hwemigodhi yegoridhe.
Musi wa10 Kukadzi 2022, Bazi reIndasitiri neTekinoroji yeRuzivo, National Development and Reform Commission, Bazi reSainzi neTekinoroji, Bazi reMari, Bazi reZviwanikwa zveMusikirwo, Bazi reEcology neZvakatipoteredza, Bazi reCommerce, neHurumende yeHurumende yeMitero vakaburitsa pamwe chete "Pakudhinda neKuparadzira Kukurumidzisa Kusimudzirwa kweZviwanikwa zveMaindasitiri". "Chiziviso chePurogiramu yeKushandiswa Kwakazara" chinoda kuti panosvika 2025, simba rekugadzira marara emumaindasitiri mumaindasitiri akakosha akadai sesimbi nesimbi, simbi dzisina feri, nemaindasitiri emakemikari munyika yangu richadzikira, huwandu hwekushandiswa kwakazara kwemarara emumaindasitiri akawanda huchavandudzwa zvakanyanya, indasitiri yezviwanikwa zvinogona kudzokororwa icharamba ichikura zvine hutano, uye zviwanikwa zvemaindasitiri zvichashandiswa zvizere. Kushanda zvakanaka kwavandudzika zvakanyanya, uye mwero wekushandiswa kwakazara kwemarara emumaindasitiri akawanda uchasvika 57%. Saka, kushandiswa kwemari yegoridhe kwakakosha.
Sino-German Key Laboratory yeMagnetoelectricity uye Intelligent Mineral Processing yeHuate Company inoita kuyedza kwakawanda kwekuwedzera kunaka kwegoridhe munzvimbo yeYantai. Zvikamu zvikuru zvezvicherwa zvegoridhe zvinosanganisira maminerari egangue akadai sequartz, feldspar necalcite, uye huwandu hushoma hweIron yemakanika, simbi yemagnetic, iron oxide, titanium oxide, iron silicate, iron sulfide nezvimwe zvisina kuchena. Hukuru hwezvimedu zvegoridhe hunowanzova 200 mesh 50-70%, saizi yezvimedu yakafanana, uye ine dhaka diki. Kusachena kukuru kweFe2O3 kuri 1-3%, TiO2 kuri 0.1-0.3%, CaO kuri 0.12-1.0%, uye kuchena kwezvimedu zvegoridhe kuri 5-20%. Kune misiyano yakati wandei mukuumbwa kwezvimedu zvinogadzirwa ne concentrators dzakasiyana. Mamwe matope ane huwandu hwakawanda hweSiO2, kana kuti ane spodumene, sericite, nezvimwewo. Mazhinji acho ndeerudzi rwefeldspar-quartz rwepegmatite, uye anogona kushandiswazve zvakanyanya.
Kambani yeHuate yakagadzira nzira ye "magnetic separation-gravity separation" yekuwedzera kunaka kwegoridhe, uye yakawana mvumo yekupa patent munaGunyana 2020. Zviri mukati mepatent iyi ndezve "nzira yakazara yekushandisa goridhe rine goridhe, simbi uye feldspar. Parizvino, maindasitiri anopfuura gumi akashandiswa muYantai, Shandong, iyo huru yacho inogona kugadzirisa matani 8,000 egoridhe pazuva. Mukuita uku, michina yepamusoro yekuwedzera kunaka kwegoridhe yakaita se vibrating screen, spiral chute, shaking table, drum magnetic separator, wet strong magnetic plate magnetic separator, vertical ring high gradient magnetic separator, uye electromagnetic slurry magnetic separator zvinoshandiswa pamwe chete. Paunenge uchiwana feldspar concentrate yemhando yepamusoro kubva mu tailings, zvigadzirwa zvakakosha zvakaita semagnetite, goridhe-bearing minerals, simende raw materials, uye brick-making materials zvinowanikwawo kuti zviwanikwe kushandiswa kwakazara kwegoridhe tailings uye kuwana zero discharge nenzira yese.
Mhete yakatwasuka ine gradient magnetic separator uye electromagnetic slurry ine gradient magnetic separator inoshandiswa mupurojekiti yegoridhe
Nguva yekutumira: Kurume-11-2022