Zabi Harshe:
Yawancin duwatsu sun ƙunshi wani nau'i na ƙarfe ko ma'adanai. Ba dukansu ba ne suke da wani taro mai mahimmanci don tabbatar da hakar ma'adinai. Those that do contain commercially valuable materials are the ones chosen for mineral processing.
sarrafa ma'adinai yana da sunaye da yawa. Wani lokaci ana kiransa a matsayin riba, ma'adinai dressing, kayan ado, ma'adinai hakar, ma'adinai riba, ko injiniyan ma'adinai. 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 ya fada kashi biyu, jika da bushewa. Rigar riba, ko jika nika, bisa ga yawan ma'adinai, ya haɗu tare da flotation froth don rage girman barbashi da raba ma'adanai. A wasu kalmomi, an jika ma'adinan a cikin wani bayani wanda zai raba su bisa ga rashin ruwa. Dry beneficiation dogara ne a kan daban-daban sa na jiki Properties wanda ya hada da girman ma'adinai, siffar, yawa, ko magnetic susceptibilities. Busashen fasahar rabuwa yana amfani da ƙasa idan kowane ruwa a duk lokacin sarrafawa kuma filin ne mai tasowa saboda sa fa'idodi a rage mu carbon sawun.
Tunda babu girman daya dace da duk hanyar rabuwa don ma'adanai, akwai nau'ikan fasahar rabuwar ma'adinai iri-iri. Masana'antar kayan aikin fasahar rabuwa na ci gaba da haɓaka dabarun haɓaka don rabuwar ma'adinai. Steqtech, kamfanin raba ma'adinai a Needham, MA, jagora ne a wannan masana'antar. Mun halitta a triboelectrostatic bel SEPARATOR ta amfani da busasshiyar fa'ida mai fa'ida wacce ke da tasiri da kuma yanayin yanayi.
Mataki na farko shi ne gano bambance-bambancen da ke cikin ma'adinan ta yadda za a iya amfani da waɗannan halayen don raba ma'adinan da duwatsun da ke dauke da su.. Ana samun wannan ta hanyar murkushewa da/ko niƙa (taron) har sai an cika ma'adinan, ko kuma "yantattu."
A cikin sarrafa ma'adinai, comminution yana amfani da mafi yawan makamashi, ko da yake tun asali ma ya fi ƙwazo. Karnuka da suka wuce, An yi amfani da kananan pestles da turmi da ake amfani da su wajen murkushe su, da duwatsun niƙa, aiki da maza, dawakai, ko kuma an yi amfani da wutar lantarki don niƙa. Today mechanized crushers and mills have greatly sped up this process.
Saboda bambance-bambancen da yawa tsakanin ma'adanai, za su iya mayar da martani daban-daban ga comminution. Misali, wani ma'adinai na iya zama mai laushi ko yana da girma ko ƙarami fiye da wani, causing it to break apart more easily.
Murkushewa da niƙa sukan yi aiki tare da ƙima, wanda ke rarraba ma'adinan gwargwadon girman. Hanya mafi sauƙi mafi sauƙi shine nunawa, which passes the particles through a screen.
Dewatering wani muhimmin mataki ne na sarrafa ma'adinai wanda ke kawar da duk wani ruwa da ƙwayoyin ma'adinai suka sha. Hanyoyin dewatering sun haɗa da fuska, tace, da bushewar thermal. Bayan hakar, ana kula da ruwan, then recirculated to be used in plant operations.
Abubuwan ma'adinai daban-daban sune tushen ingantaccen rabuwa, wanda ke tattara abubuwa masu mahimmanci. Sarrafa kuma yana raba su da gangue, wanda sai a zubar dashi. Abubuwan rabuwa sun haɗa da physicochemical (rabuwar iyo), yawa (rabuwar nauyi), da Magnetic ko lantarki (Magnetic da electrostatic rabuwa).
Fasahar rabuwa ta Electrostatic (ana amfani da su a ST Equipment & Technology) ya hada da triboelectric rabuwa, wanda baya ga zama mafi kyau ga muhalli, Hakanan zai iya gano yashi mafi kyawun ma'adinai fiye da sauran hanyoyin. ST Boats & Technology’s triboelectric separator belt separates minerals based on how particles respond when placed in an electromagnetic field.
kafa a 1989, ST Boats & Technology LLC (STET) babban dan wasa ne a masana'antar rabuwar ma'adinai dake cikin Needham, MA. Muna haɓaka kuma muna sayar da busasshen ma'adinai kayan sarrafawa amfani da ga beneficiation na lafiya barbashi kayan. Wannan ya haɗa da mallakar mallaka, m triboelectrostatic bel SEPARATOR yana da sauƙin ba da izini kuma yana iya amfanar kayan cikin masana'antu da yawa.
Ana amfana da barbashi masu girman girman ta hanyar bushewa gaba ɗaya, ba tare da ƙarin kayan aiki ko lokacin bushewa ba. Muna so mu raba ƙarin game da abin da muke bayarwa, don Allah lamba mu!
