Khib metallurgy ntau lawm

Ib tug ntawm lub ntsiab sectors ntawm kev khwv nyiaj txiag yog metallurgy. Nws muab cov raw khoom, ntau lwm industries. Ferrous thiab uas tsis yog-ferrous co uas yuav tsum tau yuav luag txhua qhov txhia chaw. Thiab tus nqi ntawm cov raw cov ntaub ntawv yog ua txhua txhua hnub. Zog nqi, ntawm chav kawm, muaj ib tug tseem ceeb ntxim rau cov nqi ntawm steel khoom. Tab sis ib qho tseem ceeb luag hauj lwm nyob rau hauv cov tsim thiab zus tau tej cov pov tseg plays nqi.

Thiab nyob rau hauv lub metallurgy ntawm lawv tshwj xeeb loj. Lawv nyob chaw loj loj thiab li paug cov pa tshuaj lom tebchaw, dej thiab av. Thiab nyob rau tib lub sij hawm nyob rau hauv lawv cov kev pab nqi, cia thiab kev thauj mus los ntawm ib tug tseem ceeb cawv rau cov nqi ntawm ntau lawm ntawm metallurgical qhauj. Tab sis cov khoom noj uas muaj ib tug ntau ntawm cov ntsiab uas yuav siv tau raws li theem nrab raw cov ntaub ntawv. Thiab thaum tus tswv lub mus kom ze, xws metallurgical twj yuav tsum muab mus rau hauv ib qhov chaw ntawm cov nyiaj khwv tau.

Cov twj ua los ntawm lub smelting ntawm steel, cam khwb cia hlau los yog ferroalloys. Thiab cov ntsiab lus ntawm ntau mineral Cheebtsam, uas tej zaum yuav muaj xws li hlau, tej zaum yuav txawm ntau dua nyob rau hauv lawv tshaj nyob rau hauv tib lub ntuj ores. Thiab vim tsis txaus txoj kev tshawb no ntawm cov qauv thiab cov thaj chaw ntawm sludges muaj ib qho teeb meem nrog rau lawv cov rov qab siv lub.

Txais yam tsawg kawg tus steelmaking slag. Cov recyclable pov tseg ntau lawm nyob rau hauv ntau steel mills thiab factories hloov dua siab tshiab rau hauv enriched slag. Rau lub hom phiaj no lub "qhuav" magnetic sib cais khoom tau tom qab crushing ntawm cov slag. Ib tug pab tau cov khoom tau tom qab qhov kev kho no, cov ntshav txiv kab ntxwv xam tau tias yog loj hlau thiab aggregates ntawm hlau thiab silica iav. Iron-enriched slag muaj pes tsawg leeg yog tus me ntsis. Thiab raws li ib tug tshwm sim ntawm kev kawm ntxiv nyob rau sinter cov nroj tsuag ntawm tons ntawm slag ua txog 40 kg ntawm cov hlau. Qhov seem pov tseg cov khoom, uas muaj me me xwb blotches los yog hlau oxide yog noj mus rau hauv cov hniav.

Tab sis muaj yog ib tug ntau npaum technology rau lub enrichment ntawm lub steel slag. Nrog kev pab los ntawm cov twj yuav tau peb cov khoom. Tus thawj yog ib tug hlau khoom. Nws yuav tsum txog li 10% ntawm cov slag loj. Nws yog ib, dua li nws yog xim hlau hlau, muaj me impurities iav, silicates thiab carbonates. Nws briquetted thiab xa mus rau ib theem smelter. Qhov thib ob yog lub txiv qaub-hlau oxide khoom. Nws yog hais txog 22% ntawm tag nrho cov. Hlau nyob rau hauv cov khoom no ib tug me ntsis. Rau feem ntau feem, nws muaj ntau yam minerals. Qhov no wustite, magnetite, maghemit, goethite, hematite, hydrated txiv qaub, hlau thiab poov hlau carbonates, raws li zoo raws li magnesium thiab calcium ferrites. Cov khoom no yuav siv tau raws li ib tug siab zoo pub cov ntaub ntawv uas nyob rau hauv zus tau tej cov hlau sinter fluxed. Thiab lub qhov seem, uas yog hais txog 68% ntog rau silica khoom. Nws lub ntsiab yog ib feem muaj lwm yam minerals tawm: silicates, spinels, tridymite, silicate iav thiab cov kua qaub co khoom. Cov khoom pov tseg kuj tsis nyob rau hauv vain. Silicate khoom siv mas nyob rau hauv kev tsim kho, MAAs los yog lwm yam cementitious khoom.

Koj yuav tau coj ib tug slag ferromanganese ntau lawm, uas muaj ntau yam tseem ceeb cov Cheebtsam. Qhov no cov ntshav txiv kab ntxwv ferromanganese thiab nws yog xim hlau hlau, silicates, hydroxides, oxides aggregates, manganese thiab hlau carbonates, silicate iav, thiab cov khoom ntawm nws crystallization. Zaum tau tsim ib tug los ntawm txoj kev uas tus cwj pwm qhuav lub ntiajteb txawj nqus concentration ntawm cov co toxins. Raws li ib tug ntawm cov khoom pov tseg kom tus zus tau tej cov peb cov khoom.

Cov ntawm no yog hlau manganese concentrate. Ntawm tag nrho cov loj ntawm slag nws yuav tau txais mus txog rau 17%. Cov khoom no muaj magnetic thiab uas tsis yog-sib nqus qhov chaw ntawm hlau, manganese, Cohen hlau thiab ntau yam alloys uas ua txheem ntawm manganese thiab hlau, thiab lawv oxides thiab hydroxides. Siv Cov khoom yuav ua tau rau zus tau tej cov ferromanganese.

Qhov thib ob cov khoom no yog ib tug silicate xuab zeb. Ib nrab ntawm tag nrho cov slag hnyav ntog rau nws. Silicate xuab zeb muaj mas quartz, cristobalite, tridymite, iav thiab silicates. Los ntawm nws koj muaj peev xwm tsim silicomanganese los yog siv nws li ib lub tsev khoom.

Qhov seem 33% los ntawm cov av nplaum-carbonate hmoov av. Nws yog li ntawm finely faib silicates, carbonates, iav thiab lwm yam minerals. Qhov no hmoov av yog siv rau MAAs ntau lawm. Muaj ntau ntau ntau ntawm no hom ntawm pov tseg, uas yuav pab tau cov neeg.