Select Puo:
Majoe a mangata a na le mofuta o itseng oa tšepe kapa liminerale. Ha se kaofela ha tsona tse nang le mahloriso a bohlokoa ho lekana ho lokafatsa merafo. Those that do contain commercially valuable materials are the ones chosen for mineral processing.
Ts'ebetso ea liminerale e tsamaea ka mabitso a mangata. Ka linako tse ling e bitsoa molemo, ho roala liminerale, ho roala ore, tlhahiso ea liminerale, molemo oa liminerale, kapa boenjiniere ba liminerale. All of these terms can be used interchangeably but refer to the process of separating usable minerals from the low-value minerals in ore known as gangue.
Beneficiation e oela likarolong tse peli, metsi le ho omella. Beneficiation e metsi, kapa ho sila ka metsi, e thehiloeng ho bongata ba liminerale, e kopanya le froth flotation ho fokotsa boholo ba likaroloana le ho arola liminerale. Ka mantsoe a mang, liminerale li kenngoa ka tharollo e li arolang ho latela ho qhibiliha ha tsona metsing. Dry beneficiation e ipapisitse le sete e arohaneng ea thepa ea 'mele e kenyelletsang boholo ba liminerale, sebopeho, segokanyipalo, kapa ts'oaetso ea makenete. Theknoloji ea karohano e omileng e sebelisa metsi a fokolang ha ho na le metsi nakong eohle ea ts'ebetso 'me ke tšimo e ntseng e eketseha ka lebaka la eona melemo e ka ho fokotsa khabone ea rona.
Kaha ha ho na boholo bo le bong bo lekanang mekhoa eohle ea karohano ea liminerale, ho na le mefuta e mengata ea theknoloji ea karohano ea liminerale. Indasteri ea lisebelisoa tsa thekenoloji ea karohano e ntse e tsoela pele ho nts'etsapele mekhoa ea ho arola liminerale. Steqtech, khamphani ea karohano ea liminerale e Needham, MA, ke moetapele indastering ena. Re entse a triboelectrostatic lebanta kgaoganyo ho sebelisa mokhoa o omileng oa molemo o sebetsang hantle le o bonolo oa tikoloho.
Mohato oa pele ke ho tseba phapang e teng ka har'a tšepe e le hore litšobotsi tseo li ka sebelisoa ho arola liminerale le majoe a nang le tsona.. Sena se finyelloa ka ho sila le / kapa ho sila (tsamaiso) ho fihlela liminerale li pepesitsoe ka botlalo, kapa “ho lokoloha.”
Ts'ebetsong ea liminerale, commition e sebedisa matla ka ho fetisisa, le hoja qalong e ne e le boima le ho feta. Lilemong tse makholo tse fetileng, lipesele tse nyenyane tse sebelisoang ka letsoho li ne li sebelisetsoa ho silakanya, le lelwala, e sebetsoang ke banna, lipere, kapa matla a metsi a ne a sebelisetsoa ho sila. Today mechanized crushers and mills have greatly sped up this process.
Ka lebaka la liphapang tse ngata pakeng tsa liminerale, ba ka arabela ka tsela e fapaneng ho comminution. Ka mohlala, minerale enngwe e ka ba bonolo kapa ya eba le mabele a maholo kapa a manyane hofeta enngwe, causing it to break apart more easily.
Ho sila le ho sila hangata ho sebetsa hammoho le boholo, e kopanyang diminerale ho ya ka boholo. Mokhoa o bonolo ka ho fetisisa oa ho etsa boholo ke oa ho lekola, which passes the particles through a screen.
Ho nosetsa ke mohato o mong oa bohlokoa oa ho lokisa liminerale o tlosang metsi leha e le afe a monngoang ke likaroloana tsa liminerale. Mekhoa ea ho tlosa metsi e kenyelletsa li-skrini, ho sefa, le ho omisa ka mocheso. Ka mor'a ho ntša, metsi a phekolwa, then recirculated to be used in plant operations.
Lintho tse fapaneng tsa liminerale ke motheo oa karohano e sebetsang, e tsepamisitseng likaroloana tsa bohlokoa. Ho sebetsa ho boetse ho ba arola ho gangue, eo ka nako eo e lahliloeng. Thepa ea karohano e kenyelletsa physicochemical (karohano ya flotation), segokanyipalo (karohano ea matla a khoheli), le makenete kapa motlakase (karohano ea magnetic le electrostatic).
Theknoloji ea ho arohana ea electrostatic (e sebelisoang ho ST Equipment & Technology) e kenyelletsa triboelectric karohano, eo ntle le ho ba betere bakeng sa tikoloho, e ka boela ea lemoha lehlabathe la liminerale tse ntle ho feta mekhoa e meng. ST Helmets & Technology’s triboelectric separator belt separates minerals based on how particles respond when placed in an electromagnetic field.
thehiloe ka 1989, ST Helmets & Technology LLC (STET) ke sebapali se seholo indastering ea karohano ea liminerale e fumanehang Needham, MA. Re hlahisa le ho rekisa liminerale tse ommeng lisebelisoa tsa ho sebetsa se sebedisoang bakeng sa ho thusa ka thepa e nyane. Sena se kenyeletsa mong'a ntlo, diseke ee triboelectrostatic lebanta kgaoganyo seo se bonolo ho se lumella mme se ka thusa lisebelisoa ka har'a liindasteri tse 'maloa.
Likaroloana tsa boholo ba micron li rua molemo ka mokhoa o omileng ka ho feletseng, e se nang lisebelisoa tse eketsehileng kapa nako ea ho omisa. Re ka thabela ho arolelana haholoanyane ka seo re fanang ka sona, kahoo ka kopo ho ikopanya rona!
