Ua lag ua luamKev lag luam

Hlau ore, nws ntau lawm thiab kev siv

Hlau ore yog ib tug mineral kev kawm tshwj xeeb xws li hlau thiab nws cov tebchaw. Hlau ore yog suav tias yog nyob rau hauv cov ntaub ntawv uas, yog hais tias nws muaj no nyob rau hauv txaus lawm yuav tsum tau kev lag kev luam muaj txiaj ntsim rau extract nws.

Lub ntsiab zoo ntawm cov hlau ore yog magnetite. Nws muaj txog 70% cov pa roj nitrous oxide thiab hlau. Qhov no ore yog dub los yog steel-grey xim nqaij daim tawv. Sib Nqus hlau ore yog mined nyob rau hauv Russia nyob rau hauv lub Urals. Nws yog pom nyob rau hauv lub roob magnetic, siab, kev hlub thiab Kachkanar. Nyob rau hauv Sweden nws yog nyob rau hauv lub zej zog Falun dannemorite thiab Gällivare. Nyob rau hauv lub US - ib tug paj, thiab nyob rau hauv Norway - Arendal thiab Persberg.

Nyob rau hauv lub hlau thiab steel kev lag luam hlau ore khoom raug muab faib ua peb yam:

- lub sib cais hlau ores (tsawg hlau cov ntsiab lus);

- sinter ore (nrog rau ib qho nruab nrab ntsiab lus ntawm cov hlau);

- pellet (ntub hnyav hlau-muaj).

morphological hom

Tej deposits pom tau hais tias nplua nuj hlau ore, uas muaj ntau tshaj li 57% ntawm cov hlau nyob rau hauv nws muaj pes tsawg leeg. Rau cov neeg pluag ores yog cov nyob rau hauv uas tsis tsawg tshaj li 26% hlau. Zaum hlau ore muab faib ua ob morphological hom: linear thiab ploskopodobny.

Hlau ore yog ib tug linear hom ore lub cev npoo khoov rau ob sab thiab nyob rau hauv qhov chaw ntawm lub ntiaj teb txhaum. Qhov no hom yog yus muaj los ntawm tshwj xeeb yog high hlau cov ntsiab lus (50 mus rau 69%), tab sis leej faj thiab phosphorus nyob rau hauv xws li ib ore muaj ib tug me me npaum li cas.

Ploskopodobnye deposits no muaj nyob rau hauv lub saum ntawm khaubncaws sab nraud povtseg ntawm ferruginous quartzite, uas yog raug weathering ua kiav txhab.

Hlau ore. Cov kev siv thiab zus tau tej cov

Tus nplua nuj hlau ore pom daim ntawv thov rau cov npua hlau thiab tsuas yog yog smelt nyob rau hauv lub converter thiab qhib-hearth furnaces los yog ncaj nraim nrog cov hlau rov qab. Ib tug me me npaum li cas yog siv raws li ib tug natural xim (ochre) thiab weighting av nplaum muds.

Ntiaj teb no stocks tshawb deposits ua li 160 billion. Tons, thiab hlau lawv muaj txog 80 billion. Tons. Hlau ore yog pom nyob rau hauv Ukraine, thiab qhov loj tshaj plaws ntshiab hlau khw muag khoom noj muaj Russia thiab Brazil.

Lub volume ntawm lub ntiaj teb ore ntau lawm hlob txhua txhua xyoo. Nyob rau hauv feem ntau tus neeg mob, cov hlau ore yog mined los ntawm qhib txoj kev, lub essence ntawm cov uas dag nyob rau hauv lub fact tias tag nrho cov tsim nyog cov khoom yog xa mus rau lub mine, thiab nyob rau tib qhov chaw rau tsim ib txoj hauj lwm. hauj lwm nruab nrab tob ntawm hais txog 500 m, thiab nws txoj kab uas hla nyob ntawm tus yam ntxwv ntawm lub pom teb. Tom qab ntawd, nrog kev pab los ntawm tshwj xeeb cov khoom extract hlau ore, muab tso rau hauv lub tshuab, nruj heev heev rau cov thauj ntawm hnyav loads, thiab xa los ntawm lub chaw txua txiag zeb rau lub qhauj uas yog koom nyob rau hauv kev.

Lub disadvantage ntawm lub qhib yog cov muaj peev xwm rau kuv tsuas yog nyob rau ib tug ntiav qhov tob. Yog hais tias nws yog ntau npaum li cas ntxaum, nws yog tsim nyog los tsim cov mine. Thaum xub thawj, ua lub cev, li ib tug sib sib zog nqus zoo nrog ib tug zoo-fortified phab ntsa. Thaum opposite sab ntawm lub pob tw txoj cai huv nam cuag tus thiaj li hu ua drifts. Pom nyob rau hauv lawv ore moj tej tawg, thiab ces nws daim tsa mus rau qhov chaw nrog rau cov kev pab los ntawm tshwj xeeb cov khoom. Hlau ore tsuas nyob rau hauv no yav tas yog zoo tab sis yuav ib tug loj uas muaj feem yuav thiab them tus nqi.

Muaj yog tseem lwm txoj kev nyob rau hauv uas lub mined hlau ore. Nws yog hu ua SRS los yog hydraulic borehole. Lub ore yog muab rho tawm los ntawm hauv av nyob rau hauv xws li ib tug txoj kev: lub zoo yog drilled, nws yog nws txo qis rau hauv cov yeeb nkab thiab jetting haib heev dej dav hlau crushed pob zeb, uas yog ces tsa mus rau qhov chaw. Hlau ore los ntawm cov qauv no yog muaj kev ruaj ntseg, tab sis, hmoov tsis, tsis zoo. Yog li ntawd nws tswj kom tau tsuas yog 3% ntawm cov ore, thiab 70% yog ua ntawm shafts. Txawm li cas los, txoj kev loj hlob ntawm ib tug qauv ntawm cov SRS zoo, thiab muaj ib tug high qhov muaj tseeb hais tias nyob rau hauv lub neej yav tom ntej no yuav los ua lub ntsiab kev xaiv, hloov lub mines thiab quarries.

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