Mica ndi imodzi mwa miyala ikuluikulu yomwe imapanga miyala, ndipo kristalo ili ndi kapangidwe kake mkati, kotero imakhala ndi kristalo wa hexagonal flake. Mica ndi mawu ofala a gulu la mica la mchere, makamaka kuphatikizapo biotite, phlogopite, muscovite, lepidolite, sericite, ndi lepidolite.
Katundu wa Mamineral ndi Kapangidwe kake
Mica ndi mchere wa aluminosilicate ndipo umagawidwa m'magulu atatu: muscovite, biotite ndi lepidolite. Muscovite imaphatikizapo muscovite ndipo nthawi zambiri imakhala ndi sodium mica; biotite imaphatikizapo phlogopite, biotite, manganese biotite; lepidolite ndi mulingo wabwino wa mica yosiyanasiyana yokhala ndi lithiamu oxide yambiri; sericite ndi mchere wadothi wokhala ndi mawonekedwe enaake a muscovite wachilengedwe. M'makampani, makamaka m'makampani amagetsi, muscovite ndi phlogopite zimagwiritsidwa ntchito kwambiri. Zigawo zazikulu za mica ndi silicon, aluminiyamu, potaziyamu, magnesium, lithiamu, madzi a kristalo ndi chitsulo chochepa, manganese, titaniyamu, chromium, sodium, calcium, ndi zina zotero. Mica ili ndi cleavage yangwiro ndipo imatha kuchotsedwa. Pakati pawo, biotite ndi phlogopite zili ndi mphamvu zofooka zamaginito, ndipo mapepala ena a mica amathanso kukhala ndi zonyansa monga chitsulo ndi manganese ndipo ali ndi mphamvu zina zofooka zamaginito. Kulimba kwa Mohs ndi 2 ~ 3, kuchuluka kwake ndi 2.7 ~ 2.9g / cm3, mchere wodziwika bwino ndi pyrite, tourmaline, beryl, feldspar, quartz, spinel, diopside, tremolite, ndi zina zotero, zomwe chitsulo chachikasu, tourmaline, spinel, diopside, ndi zina zotero zili ndi mphamvu zofooka zamaginito.
Madera ogwiritsira ntchito ndi zizindikiro zaukadaulo
Muscovite ili ndi zinthu zabwino zakuthupi ndi zamakemikolo monga mphamvu yayikulu ya dielectric, kukana kwambiri, kutayika kochepa kwa dielectric, kukana arc, kukana corona, kapangidwe kolimba, mphamvu yayikulu yamakina, kukana kutentha kwambiri, kukana asidi ndi alkali, kotero imagwiritsidwa ntchito kwambiri m'mafakitale. Ili ndi ntchito zosiyanasiyana; zinthu zazikulu za phlogopite mica ndizochepa pang'ono kuposa muscovite mica, koma imakhala ndi kukana kutentha kwambiri ndipo ndi chinthu chabwino choteteza kutentha; fragment mica imatanthauza mawu onse a mica yabwino yomwe imakumbidwa ndi zotsala zomwe zimapangidwa pokonza ndi kuyika ma tableti. ; Lepidolite, yomwe imadziwikanso kuti phosphomica, ndi zinthu zopangira mchere zochotsera lithiamu, ndipo sericite imagwiritsidwa ntchito kwambiri mu rabara, mapulasitiki, zitsulo, zodzoladzola, ndi zina zotero.
Ukadaulo Wokonza
Kupindula ndi kuyeretsa
Njira zoyeretsera ndi kuyeretsa mica zimasiyana malinga ndi mtundu wake. Flake mica nthawi zambiri imagwiritsa ntchito kusanja pamanja, kupatsa mphamvu kwa friction, kupatsa mphamvu mawonekedwe, ndi zina zotero; crash mica imagwiritsa ntchito kugawa kwa mphepo ndi kuyandama, biotite ndi phlogopite zimatha kugwiritsa ntchito kugawa kwamphamvu kwa maginito, muscovite, lepidolite ndi sericite zili ndi mphamvu zofooka za maginito. Zodetsa zimathanso kuchotsedwa ndi kugawa kwamphamvu kwa maginito.
01 Kusankha (kuloza)
Pamaso pa mgodi kapena mulu wa miyala yomwe ili pa dzenje, mica yomwe yalekanitsidwa ndi monomer imasankhidwa, ndipo nthawi zambiri imakhala yoyenera mica yayikulu yodulidwa.
02 Kupindula kwa kukangana
Malinga ndi kusiyana pakati pa sliding friction coefficient ya flaky mica crystal ndi rolling friction coefficient ya round gangue, mica crystal ndi gangue zimalekanitsidwa. Chimodzi mwa zipangizo zomwe zimagwiritsidwa ntchito ndi slant plate sorter.
03 Kukongoletsa mawonekedwe
Malinga ndi mawonekedwe osiyanasiyana a makhiristo a mica ndi gangue, kuthekera kodutsa m'malo otsetsereka kapena dzenje la sieve panthawi yotsekeredwa ndi kosiyana, kotero kuti mica ndi gangue zimalekanitsidwa.
04 Kusankha kwa mphepo
Mchenga ndi miyala ikaphwanyidwa, mica imakhala ngati ma flakes, pomwe mchere wa gangue umakhala ngati tinthu tating'onoting'ono tambiri. Pambuyo pogawa magulu osiyanasiyana, zida zapadera zimagwiritsidwa ntchito polekanitsa mphepo malinga ndi kusiyana kwa liwiro la kuyimitsidwa kwa mpweya.
05 Kuyandama
Pakadali pano, pali njira ziwiri zoyandama: imodzi ndi kuyandama kwa mica ndi ma amine osonkhanitsa mu acid medium; ina ndi kuyandama ndi ma anionic osonkhanitsa mu alkaline medium, yomwe imafunika kuchotsedwa slime isanasankhidwe, ndipo imafunika kusankhidwa mobwerezabwereza.
06 Kupatukana kwa maginito
Biotite ndi phlogopite zili ndi mphamvu zofooka zamaginito ndipo zimatha kusankhidwa pogwiritsa ntchito njira yamphamvu yamaginito; zinthu zodetsedwa za iron oxide ndi iron silicate nthawi zambiri zimagwirizanitsidwa ndi muscovite, sericite ndi lepidolite, zomwe zimathanso kuchotsedwa pogwiritsa ntchito njira yamphamvu yamaginito. Zipangizo zolekanitsa maginito zimaphatikizapo ma rollers amphamvu amaginito owuma ndi onyowa, ma plate magnetic separators ndi ma vertical ring high gradient magnetic separators.
Chotsani
Kuchotsa mica yaiwisi m'mapepala a mica osiyanasiyana kumatchedwa mica peeling. Pakadali pano, pali njira zitatu zochotsera mica, zomwe ndi zamanja, zamakaniko, zakuthupi komanso zamankhwala, zomwe zimagwiritsidwa ntchito pokonza monga mapepala okhuthala, mapepala opyapyala, ndi chubu cha mica.
Kupera bwino komanso kosalala kwambiri
Pali mitundu iwiri ya kupanga ufa wosalala ndi wosalala kwambiri wa mica, njira youma ndi njira yonyowa. Kuwonjezera pa zida zophwanyira ndi zopera, njira youma iyeneranso kukhala ndi zida monga kuwunikira ndi kugawa mpweya. Kupanga konyowa kumagwiritsa ntchito zida zosiyanasiyana zopera zonyowa, ndipo ukadaulo wopopera wonyowa ndiye njira yayikulu yopangira ufa wosalala wa mica.
Kusintha kwa pamwamba
Kusintha kwa ufa wa mica pamwamba kungagawidwe m'njira ziwiri: kusintha kwa organic pamwamba ndi kusintha kwa inorganic pamwamba. Chogulitsa cha mica chosinthidwacho chingawongolere mphamvu ya makina ya chinthucho, kuchepetsa kuchepa kwa kapangidwe kake, mawonekedwe abwino a kuwala ndikuwonjezera phindu la kugwiritsa ntchito, ndi zina zotero.
Nthawi yotumizira: Marichi-07-2022