Tun daga 1990s, ƙasashen waje sun fara nazarin fasahar fa'ida ta fasaha kuma sun yi wasu ci gaba na ka'idoji, kamar GunsonSortex a Burtaniya da Outo-kumpu a Finland.da RTZOreSorters, da dai sauransu, sun haɓaka kuma sun samar da nau'ikan nau'ikan nau'ikan photoelectric na masana'antu sama da goma, na'urorin rediyoaktif, da dai sauransu, kuma an yi nasarar amfani da su a fagen rarraba karafa marasa ƙarfe da karafa masu daraja, amma saboda tsadar farashin. ƙarancin rarraba daidaito, Ƙarfin sarrafawa yana da ƙananan, kuma yana iyakancewa a cikin gabatarwa da aikace-aikace.
Idan aka kwatanta da kasashen waje, binciken fasahar da ke da alaƙa a cikin ƙasata ya fara da ɗan lokaci kaɗan, kuma fannin binciken ya ɗan ɗan ɗanɗana. A wajen shekara ta 2000, wasu na'urori ma sun bayyana a kasuwannin cikin gida, galibi masu rarraba launi, narkar da infrared, rarraba wutar lantarki, da dai sauransu. akasari ana amfani da shi don rarraba hatsi, abinci, shayi, magani, kayan albarkatun ƙasa, takarda, gilashi, ɓangarorin sharar gida da sauran masana'antu, amma ga ƙarfe mai daraja da ƙarancin ƙarancin ƙarfe kamar zinariya, ƙasa mai wuya, jan ƙarfe, tungsten, kwal, ƙarancin ƙarfe na ƙarfe mai ƙarfi, da dai sauransu ba za a iya yadda ya kamata pre-zaba da jefar da a gaba, musamman a bushe na fasaha pre-zabin wutsiya jifa kayan aiki ne har yanzu blank.
A halin yanzu, mahakar ma'adinan cikin gida ba su da ingantaccen kayan aiki na musamman don zubar da ma'adanai masu rauni masu ƙarfi, ƙarfe mara ƙarfe, da dai sauransu, galibi suna dogaro da ainihin hanyar rarraba ta hannu da hanyar rabuwar maganadisu, kuma girman rarrabuwa gabaɗaya shine gaba ɗaya. daga 20 zuwa 150 mm.Babban ƙarfi da tsada mai tsada.Don ma'adanai tare da ƙananan bambance-bambance a cikin launi na launi, luster, siffar, da yawa na tama da dutsen sharar gida, ƙwarewar rarraba yana da ƙasa, kuskuren yana da girma, kuma wasu ba za a iya bambanta ba.Don magnetite, ana iya amfani da hanyar rabuwar maganadisu don jefa wutsiyoyi, amma ga ma'adinan da ke da raunin magnetic Properties, ƙarfe mara ƙarfe, da dai sauransu, kuskuren rabuwa yana da girma, haɓakar rabuwa yana da ƙasa, kuma akwai mummunar ɓarna na albarkatu. .
Na'ura mai rarraba firikwensin hankali ya dace da pretreatment na tama tare da babban dilution kudi na danyen tama da kyakkyawan tasirin rabuwa tsakanin dutsen kewaye da tama mai amfani bayan murkushe.
01
Rage matakin yanke ma'adinan yana daidai da fadada ma'adinan masana'antu na ma'adinai;
02
Rage farashin niƙa da fa'ida na gaba;
03
Ana iya inganta ƙarfin aiki na tsarin a ƙarƙashin yanayin cewa kayan aikin niƙa na asali ya kasance ba canzawa;
04
Haɓaka darajar da aka zaɓa yana da kyau don daidaitawa da haɓaka ingancin abubuwan tattarawa da rage farashin narkewa;
05
Rage jari na wutsiya masu kyau, rage samarwa da kula da farashin tafkunan wutsiya, da inganta yanayin tsaro a kusa da wurin tafki.
A dauki ma'adinan zinari a matsayin misali: a halin yanzu, albarkatun zinare da aka tabbatar a kasata sun kai ton 15,000-20,000, wanda ke matsayi na bakwai a duniya, tare da fitar da zinare sama da ton 360 a shekara, ajiyar zinaren dutse ya kai kusan kashi 60%, kuma matsakaita. ma'adinin ajiyar tama na kusan 5%.Game da g/t, ma'adinan dutsen gwal ya kai tan biliyan 3.Ya zama babban mai samar da zinare a duniya.Koyaya, tsarin cin gajiyar zinare a cikin ƙasata har yanzu yana ɗaukar tsarin al'ada na flotation-ma da hankali na cyanidation.Babu wata hanya mai tasiri don jefa wutsiya kafin murkushewa da niƙa.Nauyin aikin murkushewa, niƙa da iyo yana da girma, kuma farashin fa'ida ya kasance mai girma.Adadin ma'adinan ma'adinai ya fi kashi 5%, adadin dawo da fa'ida da narke kusan kashi casa'in cikin ɗari ne, kuɗin amfana ya yi yawa, adadin dawo da albarkatun ƙasa kaɗan ne, kuma kare muhalli ba shi da kyau.
Bayan an riga an jefar ta hanyar tantance firikwensin hankali, dutsen da aka zaɓa zai iya yin lissafin kashi 50-80% na ɗanyen tama da aka zaɓa, yana haɓaka ƙimar da aka zaɓa na gwal da sau 3-5, da rage adadin ma'aikata a cikin masana'antar tufa da 15. -20% , 25-30% karuwa a cikin jifa-jita dutsen da 10-15% a karfe samar.
Za'a iya ajiye farashin murkushewa da niƙa fiye da 50%, za'a iya rage girman juzu'in sinadarai na gaba da fiye da 50%, ingantaccen aikin samarwa yana inganta sosai, ƙimar sake amfani da dutsen sharar gida yana inganta, lalacewar muhalli yana raguwa. , kuma an inganta fa'idar tattalin arziki sosai.
Girman girman barbashi na rarrabuwar firikwensin hankali zai iya kaiwa kusan 1mm zuwa 300mm, kuma firikwensin zai iya gano har zuwa guda 40,000 na tama a sakan daya.Yana ɗaukar ƴan ms ne kawai ga kowane yanki na ma'adinai daga gano firikwensin karɓa zuwa umarnin rarrabawa da mai kunnawa ya samu.Yana ɗaukar ƴan ms kawai don ƙirar allura don kammala kisa ɗaya.Matsakaicin ƙarfin sarrafa na'ura guda ɗaya zai iya kaiwa 400 t / h, kuma ƙarfin sarrafa kayan aiki ɗaya zai iya kaiwa ton miliyan 3 a kowace shekara, wanda yayi daidai da sikelin matsakaici da babba.
Na'urar tantance firikwensin hankali na iya sauƙin sauya software da saiti na rarrabuwa akan layi, da kuma amsa sauyin yanayi a cikin inganci da adadin ɗanyen tama a cikin lokaci, wanda ba za a iya samu akan kayan rarrabuwa na gargajiya. a cikin mataki na murkushewa, ko da kuwa kawai digiri na dissociation na dutsen ko gangue da ke kewaye, ko kuma an samar da hankali na ƙarshe kai tsaye, ana amfani da shi don nau'in nau'in ƙarfe daban-daban (maras maganadisu ko rashin ƙarfi na baƙin ƙarfe, jan karfe, gubar, Pre-zaɓi da zubar da sharar gida na zinc, nickel, tungsten, molybdenum, tin, rare earth, zinariya, da dai sauransu), kwal da kuma wadanda ba karfe ma'adanai kamar talc, fluorite, calcium carbonate, dolomite, calcite, apatite, da dai sauransu. Adadin daɗaɗɗen maida hankali shiga cikin tsari na gaba yana raguwa sosai, kuma an inganta darajar, wanda zai iya rage farashin niƙa da fa'ida ta gaba.al rarrabawar hannu, rabuwar maganadisu, da rarrabuwar hasken hoto dangane da daidaiton tantancewa, saurin amsawa, iyawar rarrabawa, da iya aiki.Rarrabuwar hankali shine cikakkiyar bayyanar fasahar ji ta zamani da fasahar dijital, kuma ta zama babban jagorar ci gaba na zaɓin ma'adinai kafin zaɓi.
Albarkatun ma'adinan kasar Sin galibin ma'adinai ne maras nauyi, kuma karfin ajiya yana da yawa.Yadda za a jefar da sharar gida a gaba, inganta yadda ya dace na m nika da fa'ida, da kuma rage kudin da fa'idar, da kuma rayayye amsa ga kasar general bukatun na "gina kaifin baki ma'adinai da kore ma'adinai", zai Ya zama wani makawa Trend a cikin ci gaban masana'antar hakar ma'adinai ta kasata.Don haka, haɓaka na'urorin rarrabuwa masu hankali da suka dace da ma'adanai na cikin gida yana nan kusa, kuma hasashen kasuwa zai kasance mai faɗi sosai.
Lokacin aikawa: Fabrairu-25-2022