Bauxite imatanthauza miyala yomwe ingagwiritsidwe ntchito m'mafakitale, ndipo pamodzi imatchedwa miyala yomwe imapangidwa ndi gibbsite ndi monohydrate ngati mchere waukulu. Bauxite ndi chinthu chabwino kwambiri popanga aluminiyamu yachitsulo, ndipo kugwiritsidwa ntchito kwake kumawononga zoposa 90% ya bauxite yonse padziko lonse lapansi. Magawo ogwiritsira ntchito bauxite ndi achitsulo komanso osakhala achitsulo. Ngakhale kuchuluka kwa zinthu zopanda chitsulo ndi kochepa, kuli ndi ntchito zosiyanasiyana. Bauxite imagwiritsidwa ntchito m'makampani opanga mankhwala, zitsulo, zoumba, zinthu zotsutsa, zokometsera, zokometsera, makampani opepuka, zipangizo zomangira, makampani ankhondo, ndi zina zotero.
Kapangidwe ka miyala ndi kapangidwe ka mchere
Bauxite ndi chisakanizo cha mchere wambiri (ma hydroxide, mchere wa dongo, ma oxide, ndi zina zotero) ndi aluminiyamu hydroxide ngati gawo lalikulu. Imatchedwanso "bauxite" ndipo nthawi zambiri imakhala ndi gibbsite. , Diaspore, boehmite, hematite, kaolin, opal, quartz, feldspar, pyrite ndi mchere wina wambiri, womwe umakhala ndi mankhwala ambiri monga AI2O3, SiO2, Fe2O3, TiO2, yachiwiri. Zosakaniza zake ndi CaO, MgO, K2O, Na2O, S, MnO2 ndi zinthu zachilengedwe, ndi zina zotero, zoyera, imvi, imvi-chikasu, chikasu-chobiriwira, chofiira, bulauni, ndi zina zotero.
Kupindula ndi kuyeretsa
Mamineral ena osaphika omwe amachotsedwa ku bauxite amatha kukwaniritsa zofunikira pakugwiritsa ntchito. Bauxite wamba imatsimikizira njira yophikira kutengera mtundu wa mchere wodetsedwa womwe umagwirizana nawo. Nthawi yomweyo, zodetsa zomwe zimagwirizanitsidwa ndi mchere wokhala ndi aluminiyamu m'ma bauxite ena zimakhala zovuta kuchotsa mwamakina kapena mwakuthupi.
01
Kugawa phindu
Mchenga wa quartz wopangidwa ndi granular ndi bauxite wophikidwa ndi ufa ukhoza kulekanitsidwa mwa kutsuka, kutseka kapena kugawa kuti ukhale wabwino. Ndi woyenera boehmite yokhala ndi silicon yambiri.
02
Kupindula kwa mphamvu yokoka
Kugwiritsa ntchito heavy medium beneficiation kumatha kulekanitsa dongo lofiira lomwe lili ndi chitsulo mu bauxite, ndipo spiral concentrator imatha kuchotsa siderite ndi mchere wina wolemera.
03
Kulekanitsa maginito
Kugwiritsa ntchito njira yofooka yolekanitsa maginito kungachotse chitsulo cha maginito mu bauxite, ndipo kugwiritsa ntchito zida zolimba zolekanitsa maginito monga mbale yolekanitsa maginito, vertical ring high gradient magnetic separator, electromagnetic slurry magnetic separator kungachotse chitsulo chosakanizika, titaniyamu ndi silicate yachitsulo, ndi zina zotero. Kusankha zipangizo zofooka zofooka kungapangitse kuti aluminiyamu ikhale yochuluka pamene kuchepetsa mtengo wopangira ndi kukonza alumina.
04
Kuyandama
Pa ma sulfide monga pyrite omwe ali mu bauxite, kuyandama kwa xanthate kungagwiritsidwe ntchito kuchotsa; kuyandama kwabwino ndi kobwerera kungagwiritsidwenso ntchito kuchotsa zonyansa monga pyrite, titaniyamu, silicon, kapena kusankha kuchuluka kwa AI2O3 mpaka 73% ya bauxite yoyera kwambiri.
Kupanga alumina
Njira ya Bayer imagwiritsidwa ntchito makamaka popanga alumina kuchokera ku bauxite. Njirayi ndi yosavuta, kugwiritsa ntchito mphamvu ndi mtengo wake ndizochepa, ndipo khalidwe la chinthucho ndi labwino. ). Kwa bauxite yokhala ndi chiŵerengero chochepa cha aluminiyamu ndi silicon, njira yopangira soda lime imagwiritsidwa ntchito, ndipo njira ya Bayer ndi njira yopangira soda lime ingagwiritsidwenso ntchito popanga zinthu pamodzi.
Kupanga mchere wa aluminiyamu
Ndi bauxite, aluminiyamu sulfate imatha kupangidwa pogwiritsa ntchito njira ya sulfuric acid, ndipo polyaluminum chloride imatha kupangidwa pogwiritsa ntchito njira ya hydrochloric acid yotentha kwambiri.
Utumiki Waukadaulo wa Huate Beneficiation Engineering Design Institute
①Kusanthula zinthu zodziwika bwino ndi kuzindikira zinthu zachitsulo.
②Kuchotsa ndi kuyeretsa zinthu zodetsedwa monga zachitsulo, Chingerezi, Chitchaina, zotsetsereka, zowala, zofiirira, zofiirira, zitsulo zotayidwa, sera wa masamba, makristalo olemera ndi zina zosakhala zachitsulo.
③Kupindulitsa kwa chitsulo, titaniyamu, manganese, chromium, vanadium ndi mchere wina wopanda chitsulo.
④Kupindulitsa kwa mchere wofooka wa maginito monga tungsten ore, tantalum niobium ore, durian, electric, ndi cloud.
⑤ Kugwiritsa ntchito bwino zinthu zina monga zinthu zosiyanasiyana zotsalira ndi zinthu zosungunulira.
⑥Kuphatikizana kwa mchere wamitundu yosiyanasiyana, maginito, zolemera, ndi flotation.
⑦ Kusankha kwa sensa yanzeru ya mchere wosakhala wachitsulo ndi wosakhala wachitsulo.
⑧ Mayeso obwerezabwereza a theka la mafakitale.
⑨ Kuwonjezera ufa wabwino kwambiri monga kuphwanya zinthu, kupukuta ndi kugawa.
⑩EPC njira zosinthira monga kuphwanya, kusankha zinthu pasadakhale, kugaya miyala, kulekanitsa miyala ndi maginito (yolemera, yoyandama), kukonza, ndi zina zotero. posankha miyala.
Nthawi yotumizira: Disembala-20-2021