Chromite chinhu chakakosha pakunyungudutsa ferroalloys, simbi isina ngura uye alloys dzinokosha. Indasitiri yesimbi inoshandisa inenge 60% yechromium, iyo inonyanya kushandiswa kugadzira simbi isina ngura, kunyanya simbi isina ngura. Panguva imwe chete, chromite inoshandiswawo zvakanyanya muindasitiri ye refractory, indasitiri yemakemikari uye indasitiri yechiedza.
Zvivakwa zveOre
Kune mhando dzinopfuura makumi mashanu dzezvicherwa zvine chromium zvinowanikwa muzvisikwa, asi zvicherwa zvine chromium chete zvine kukosha kwemaindasitiri ichromite, izvo zvinoti spinel (MgO, Al2O3), magnesia chromite (MgO, Cr2O3), uye magnetite. (FeO, Fe2O3) nedzimwe mhinduro dzakasimba. Mupfungwa, fomura yemakemikari yechromite ndeyeFeO, Cr2O3, ine 68% Cr2O3, 32% FeO, ine magnetic yepakati, density 4.1~4.7g/cm3, Mohs hardness 5.5~6.5, uye chitarisiko chepamusoro chinobva padema kusvika pabrown yakasviba. Zvicherwa zveGangue zvinonyanya kusanganisira olivine, serpentine uye pyroxene, dzimwe nguva zvichiperekedzwa nehuwandu hushoma hwevanadium, nickel, cobalt uye molybdenum group elements.
Tekinoroji Yekugadzirisa
Zviwanikwa zvemakromite muChina hazvina kusimba, zvakanyanya kuTibet, Xinjiang, Inner Mongolia, Gansu nedzimwe nzvimbo. Zviwanikwa zvemakromite zvekunze kwenyika zvinonyanya kupararira muSouth Africa, Russia, Brazil, United States nedzimwe nyika. Chromite ine hunhu hwe high density, medium magnetism uye coarse crystal particles. Kazhinji, inorongwa ne ore washing, weak magnetic separation, medium strong magnetic separation, gravity separation, flotation nezvimwe zvinhu.
Nzira yekugeza
Yakakodzera matombo echromite akakora ane matombo emhando yepamusoro uye matope akatetepa akaita sevhu setsvina. Zvigadzirwa zvemachira akakora zvinogona kusarudzwa nekusuka zviri nyore.
Kupatsanurwa kwemagineti
Chromite ine hunhu hwemagineti huri pakati nepakati uye inogona kupatsanurwa nekupatsanurwa kwakasimba kwemagnetic kwakaoma kana kwakanyorova. Magnetite inobatanidzwa inotanga yapatsanurwa nemagnetic isina simba, yozopatsanurwa nemagineti neCXJ kana CFLJ, plate magnetic separator, vertical ring high gradient magnetic separator, nezvimwewo. Midziyo iyi inoita basa rekuwedzera mvura neyakanyorova, uye inogona kusarudza zvigadzirwa zvine hunyanzvi. Nzira yekupatsanurwa kwemagnetic ine zvakanakira zvehukuru hwekugadzirisa uye zviratidzo zvakagadzikana.
Nzvimbo yekushandisa chromite muSouth Africa
Kuronga midhiya zvakanyanya
Huremu hwe chromite hwakanyanya i4.1~4.7g/cm3, uye huremu hwe gangue ne iron silicate minerals dzakabatana hunowanzova 2.7~3.2g/cm3. Kushandisa musiyano we density pakati pe minerals, spiral chute, jigging, shake table, spiral beneficiation zvinogona kushandiswa. Michina, centrifuges nezvimwe zvinhu zvinorema zvekurongedza zvinogona kushandiswa. Nzira iyi yakakodzera chromite ine saizi ye crystal grain yakakura, uye zvidimbu zvidiki zvinorasika nyore nyore mu tailings.
Kuyangarara
Chromite inogona kushandisa mafuta anounganidza kana amine kuti isarudze zvinhu zvine simba kuburikidza nekukwesha nekutsvaira pasi pemamiriro ezvinhu akakodzera epH. Yakakodzera machromite ane ganda rakatsetseka uye rakatsetseka.
Kubatsira kwemakemikari
Kune mamwe ma chrome ores akaoma kugadziriswa nenzira dzekugadzira simbi, simbi inogadzirwa—maitiro akabatanidzwa emakemikari kana nzira imwe chete yemakemikari inoshandiswa. Nzira dzekugadzira simbi dzinosanganisira: kucheneswa kwechinhu chose, redox, kupatsanurwa kwefuse, kucheneswa kwesulfuric acid nechromic acid, kuderedza nekucheneswa kwesulfuric acid, nezvimwewo.
Muenzaniso wekubatsira
Chikamu cheCr2O3 chiri mu chromite tailing muSouth Africa i24.80%. I tailings dzinosarudzwazve panzvimbo yacho. Saizi yesampuro i -40 mesh uye saizi ye particles yakafanana. Chromite iripo mu fine particles uye contiguous bodies uye inclusions. Main gangue minerals Iolivine nepyroxene, ine dhaka diki. Zvichienderana nerudzi rwema ore samples, maitiro ekuwedzera mvura anosimbiswa se flat kana vertical ring one-step roughing.
Chromite ine ganda rakatsetseka iri mumaseko enzvimbo yekupatsanurana kwegiravhiti inoshandisa nzira yekuparadzanisa simbi yakatsetseka kana kuti vertical ring strong magnetic, iyo inogona kusarudza zvigadzirwa zvine hunyanzvi zve concentrate. Zvicherwa zvine chromium mumuswe wemagnetic inclusions dzakatsetseka kana zvimwe zvicherwa zvisina kukosha zvine chromium zvakawana zviratidzo zvakanaka zvekubatsira.
Nguva yekutumira: Gumiguru-12-2021