Kaolin ni amabuye y'agaciro asanzwe ku isi. Nibintu byingirakamaro kuri pigment yera, kubwibyo, umweru nigipimo cyingenzi kigira ingaruka kuri kaolin. Hano hari ibyuma, ibinyabuzima, ibintu byijimye nibindi byanduye muri kaolin. Iyi myanda izakora kaolin igaragara kumabara atandukanye, bigira ingaruka kumweru. Kaolin rero igomba gukuraho umwanda.
Uburyo busanzwe bwo kweza kaolin burimo gutandukanya uburemere, gutandukanya magneti, flotation, kuvura imiti, nibindi bikurikira nuburyo busanzwe bwo kweza kaolin:
1. Gutandukanya imbaraga
Uburyo bwo gutandukanya imbaraga za rukuruzi bukoresha cyane cyane itandukaniro riri hagati yubutare bwa gangue na kaolin kugirango ukureho umwanda mwinshi w’ibintu byoroheje kama, quartz, feldspar nibintu birimo fer, titanium na manganese, kugirango bigabanye ingaruka z’umwanda ku cyera. Centrifugal concentrated ikoreshwa mugukuraho umwanda mwinshi. Itsinda rya hydrocyclone rirashobora kandi gukoreshwa kugirango urangize gukaraba no kwerekana kaolin mugikorwa cyo gutondeka, bidashobora kugera ku ntego yo gukaraba no gutondekanya gusa, ariko kandi bikanakuraho umwanda, ufite agaciro keza ko gusaba.
Nubwo bimeze bityo ariko, biragoye kubona ibicuruzwa bya kaolin byujuje ibyangombwa hakoreshejwe uburyo bwo gusubiramo, kandi ibicuruzwa byujuje ibyangombwa bigomba kuboneka hakoreshejwe gutandukanya magnetiki, flotation, kubara nubundi buryo.
2. Gutandukana kwa rukuruzi
Amabuye ya kaolin hafi ya yose arimo ubutare buke bwa fer, muri rusange 0.5-3%, cyane cyane magnetite, ilmenite, siderite, pyrite nibindi byanduye. Itandukanyirizo rya magnetiki rikoresha cyane cyane itandukaniro rya magneti hagati ya gangue minerval na kaolin kugirango ukureho umwanda wamabara.
Kuri magnetite, ilmenite nandi mabuye akomeye ya magnetiki cyangwa ibyuma bya fer bivanze mugutunganya, ukoresheje uburyo bwo gutandukanya magnetiki gutandukanya kaolin nibyiza cyane. Ku myunyu ngugu ya magnetiki idakomeye, hari uburyo bubiri bwingenzi: bumwe ni uguteka, kubigira imyunyu ngugu ikomeye ya magnetiki oxyde, hanyuma igakomeza gutandukanya magneti; Ubundi buryo ni ugukoresha urwego rwo hejuru rukuruzi ya magnetiki yo gutandukanya uburyo bwo gutandukanya magneti. Kuberako gutandukanya magnetique bidasaba gukoresha imiti yimiti, ibidukikije ntibizatera umwanda, kuburyo mugihe cyo gutunganya amabuye y'agaciro atari ubutare akoreshwa cyane. Uburyo bwo gutandukanya magnetique bwakemuye neza ikibazo cyo gukoresha no gukoresha kaolin yo mu rwego rwo hasi idafite agaciro mu bucukuzi bw'amabuye y'agaciro kubera ubwinshi bw'amabuye y'agaciro.
Nubwo bimeze bityo ariko, biragoye kubona ibicuruzwa bya kaolin yo murwego rwohejuru ukoresheje magnetique yonyine, kandi kuvura imiti nibindi bikorwa birakenewe kugirango turusheho kugabanya ibyunyunyu fer mubicuruzwa bya kaolin.
3. Flotation
Uburyo bwa flotation bukoresha cyane cyane itandukaniro ryumubiri nubumara hagati yimyunyu ngugu ya gangue na kaolin kugirango bivure ubutare bwa kaolin mbisi hamwe n’umwanda mwinshi kandi byera, kandi bikureho umwanda urimo fer, titanium na karubone, kugirango tumenye ikoreshwa ryuzuye ryurwego rwo hasi ibikoresho bya kaolin.
Kaolin ni amabuye y'agaciro asanzwe. Umwanda nkicyuma na titanium akenshi byinjizwa mubice bya kaolin, bityo ubutare mbisi bugomba kuba hasi kurwego runaka rwiza. Kaolinite ikunze gukoreshwa uburyo bwa flotation yuburyo bwa ultra nziza ya flotation uburyo, uburyo bubiri bwa fluid layer flotation hamwe nuburyo bwo guhitamo floculation flotation, nibindi.
Flotation irashobora kongera neza umweru wa kaolin, mugihe ibibi ari uko ikenera imiti yimiti kandi igatwara byinshi, byoroshye gutera umwanda.
4. Kuvura imiti
Kwangiza imiti: umwanda umwe muri kaolin urashobora gushonga muburyo bwa acide sulfurike, aside hydrochloric, aside nitricike nibindi bikoresho byangiza kugirango bikureho umwanda. Ubu buryo burashobora gukoreshwa mugukuraho hematite, limonite na siderite muri kaolin yo hasi.
Guhumanya imiti: umwanda uri muri kaolin urashobora guhindurwamo okiside mubintu byangirika binyuze mu guhumanya, bishobora gukaraba no kuvanwaho kugirango byongere umweru wibicuruzwa bya kaolin. Nyamara, guhumanya imiti birahenze kandi mubisanzwe bikoreshwa muri kaolin yibanze, bikenera kwezwa nyuma yo kwanduza.
Kwoza kotsa: itandukaniro ryimiterere yimiti nubusembwa hagati yumwanda na kaolin birashobora gukoreshwa mugukoresha magnetisation, gutwika ubushyuhe bwinshi cyangwa chlorine ikaranze kugirango ikureho umwanda nka fer, karubone na sulfide muri kaolin. Ubu buryo burashobora kunoza imiti yibicuruzwa bibarwa, kuzamura cyane umweru wa kaolin, no kubona ibicuruzwa byo mu rwego rwo hejuru. Ariko ibibi byo kweza bikaranze ni uko gukoresha ingufu ari binini, byoroshye guteza umwanda ibidukikije.
Binyuze mu ikoranabuhanga rimwe biragoye kubona urwego rwohejuru rwa kaolin. Kubwibyo, mubikorwa nyabyo, turagusaba guhitamo uruganda rukora ibikoresho byujuje ubuziranenge. Gukora igeragezwa ryo gutunganya amabuye y'agaciro no gukoresha tekinoroji yo gutunganya kugirango wongere ubwiza bwa Kaolin.
Igihe cyo kohereza: Apr-06-2020