Yadda za a Daidaita Sashin Sodium Cyanide bisa ga Girman Barbashin Ore?

A fannin sarrafa ma'adanai, musamman a tsarin cyanidation don cire zinare da azurfa, daidaita yawan sinadarin Sodium Cyanide bisa ga girman ƙwayar ma'adinai yana da matuƙar muhimmanci don inganta ingancin fitar da sinadarin da rage farashin samarwa. Wannan labarin yana da nufin samar da cikakken jagora kan yadda ake yin irin waɗannan gyare-gyare.

Hanyoyin Tasirin Girman Barbashi na Ore akan Amsar Cyanidation

Yankin Sama da Ra'ayin Kinetics

Ƙananan ƙwayoyin ma'adinai suna da babban yanki na musamman na saman. Lokacin da maganin sodium cyanide ya yi aiki da ma'adinan, babban yanki na saman yana ba da damar ƙarin wuraren hulɗa tsakanin ions cyanide da ma'adanai da aka yi niyya (kamar zinariya ko azurfa). Dangane da ka'idar kinetics na reaction, ƙimar amsawar tana daidai da yankin saman abubuwan da ke haifar da reactants. Misali, a cikin wani bincike kan cyanidation na zinariya, an gano cewa lokacin da aka rage girman ƙwayar ma'adinan daga girman da ya fi kauri zuwa -38 μm tare da rabon abun ciki na 75%, ƙimar zubar da zinari ta ƙaru sosai. Tare da ƙananan ƙwayoyin, ƙarin ƙwayoyin zinare a saman suna fallasa ga ions cyanide, wanda ke sauƙaƙa amsawar da ta fi inganci.

Ƙaƙƙarfan barbashi, a gefe guda, suna da ƙaramin yanki da ke akwai don amsawa. Cyanide ions kawai za su iya amsawa tare da Layer na waje na barbashi, kuma yaduwar ions na cyanide a cikin ciki na ƙananan barbashi yana da hankali. Wannan take kaiwa zuwa wani m overall dauki kudi da rashin cika leaching na manufa ma'adanai a cikin barbashi.

Barrier Yaduwa

A cikin yanayin ma'adinai mai kyau, nisa da ions cyanide ke buƙatar yaduwa don isa ga ma'adinan ma'adinai ya fi guntu. Wannan yana rage juriyar watsawa kuma yana ba da damar amsawa cikin sauri. Yayin da girman ma'adinin tama ya karu, hanyar yaduwar ion cyanide ta hanyar lafazin tsari na barbashi tama ya zama tsayi. Kasancewar ma'adanai na gangue a cikin barbashi kuma na iya aiki azaman shingen yadawa. Misali, idan akwai yadudduka na ma'adinan gangue marasa amsawa a kusa da gwal - masu ɗauke da ma'adanai a cikin wani ɗanɗano mai ɗanɗano, zai ɗauki lokaci mai tsawo kafin ion cyanide su shiga su amsa tare da gwal, yana haifar da ƙarancin leaching.

Auna Girman Barbashin Ore

Sieving Analysis

Sieving hanya ce ta gama-gari kuma madaidaiciya don tantance girman barbashin tama. Ana amfani da saitin daidaitattun sieves tare da girman raga daban-daban. Ana sanya samfurin ma'adinin a saman ma'aunin takin, sa'an nan kuma ana girgiza takin da injina na wani ɗan lokaci. Ana tattara ɓangarorin da ke wucewa ta kowace siffa kuma a auna su. Ta hanyar ƙididdige yawan adadin barbashi da aka riƙe akan kowane sieve, za'a iya samun girman girman rabon ƙwayar tama. Misali, a cikin masana'antar sarrafa tama ta gwal, idan aka tozarta ma'adinan ta hanyar siliki mai nau'in raga na 200. 325. da 400. za'a iya tantance kaso na barbashi kasa da kowane girman raga, wanda ke taimakawa wajen fahimtar ingancin takin.

Laser Diffraction Barbashi Girman Girman Analysis

Wannan hanya ce mafi ci gaba kuma daidai. Laser diffraction analyzers aiki bisa manufa cewa lokacin da Laser katako ya ratsa ta cikin tarwatsa barbashi tsarin, da barbashi za su watsar da Laser haske. Matsakaicin kusurwa da ƙarfin hasken da aka tarwatsa suna da alaƙa da girman barbashi. Ta hanyar auna hasken da aka tarwatsa, kayan aiki na iya ƙididdige girman girman rabon samfurin tama. Yana iya ba da cikakkun bayanai game da girman girman barbashi gabaɗaya, gami da ƙaƙƙarfan barbashi waɗanda ke da wahalar auna daidai ta hanyar sieving. Wannan hanyar tana da amfani musamman idan aka yi ma'amala da Ores tare da kewayon da kewayon da yawa ko lokacin da ake buƙatar ma'aunin daidaito don inganta tsarin Cyanidation.

Ka'idoji da Hanyoyi don Daidaita Sashin Sodium Cyanide

Manyan Ka'idoji

Dangantakar Daidaita Tsakanin Takaitaccen Rage

Gabaɗaya, a cikin wani takamaiman iyaka, adadin Sodium cyanide da aka ƙara yana daidai da yankin saman ƙwayoyin ma'adinai. Yayin da girman ƙwayoyin ma'adinai ke ƙara ƙanƙanta (babban yanki na saman), ana buƙatar ƙarin sodium cyanide don tabbatar da cikakken amsawa tare da ma'adanai da aka yi niyya. Duk da haka, wannan alaƙar ba ta da iyaka har abada. Lokacin da adadin sodium cyanide ya wuce wani matakin, ingancin fitar da sinadarin ba zai iya ƙaruwa sosai ba, kuma zai haifar da ɓatar da sinadarai da kuma ƙara farashin samarwa.

La'akari da Halayen Ore

Nau'o'in ma'adinai daban-daban suna da nau'ikan sinadarai da sifofi daban-daban. Wasu ma'adanai na iya ƙunshi ma'adanai waɗanda ke cinye ions cyanide, kamar wasu ma'adanai na sulfide. A irin waɗannan lokuta, ko da girman barbashi ɗaya, ana iya buƙatar ƙarin sodium cyanide don cimma tasirin leaching da ake so. Alal misali, idan ma'adinai ya ƙunshi babban adadin pyrite, pyrite na iya amsawa tare da ions cyanide da oxygen a cikin maganin, cinye cyanide. Don haka, adadin cyanide yana buƙatar daidaitawa bisa ga ƙayyadaddun ma'adinai na ma'adinai.

Hanyoyin Daidaitawa

Gwajin dakin gwaje-gwaje

Kafin a samar da manyan masana'antu, ya kamata a gudanar da gwaje-gwajen dakin gwaje-gwaje. A shirya samfuran ma'adinai masu girman barbashi daban-daban ta hanyar niƙa da kuma cirewa. Sannan, a gudanar da gwaje-gwajen cirewar cyanidation a kan waɗannan samfuran tare da nau'ikan sodium cyanide daban-daban. A auna yawan cirewar ma'adanai da aka yi niyya (misali, zinariya ko azurfa) a ƙarƙashin yanayi daban-daban. Ta hanyar nazarin bayanan gwaji, a kafa alaƙa tsakanin girman barbashi na ma'adinai, yawan sodium cyanide , da kuma yawan cirewar. Misali, ga ma'adinin zinariya mai girman barbashi na -200 raga (kimanin 74 μm), gwajin dakin gwaje-gwaje na iya nuna cewa lokacin da aka ƙara yawan sodium cyanide daga 1 kg/t zuwa 2 kg/t, ƙimar cirewar zinariya tana ƙaruwa daga 70% zuwa 85%, amma ƙara yawan zuwa 3 kg/t yana ƙara yawan cirewar zuwa 87%. Ana iya amfani da wannan bayanin a matsayin nuni ga samar da masana'antu.

Kulawa da daidaitawa ta kan layi a cikin Samar da Masana'antu

A masana'antu samar, online barbashi size analyzers za a iya shigar don ci gaba da saka idanu da barbashi girman da tama shiga cikin cyanidation tsari. Dangane da dangantakar da aka riga aka kafa tsakanin girman barbashi da adadin sodium cyanide daga gwaje-gwajen dakin gwaje-gwaje, ana iya daidaita tsarin dosing ta atomatik a cikin ainihin lokaci. Misali, idan mai nazarin girman barbashi na kan layi ya gano cewa matsakaicin girman barbashi na ma'adinan ya zama mafi kyau, tsarin sarrafa kayan aiki ta atomatik na iya ƙara yawan adadin sodium cyanide daidai da haka don kula da ingantaccen aikin leaching.

A ƙarshe, daidaita ma'aunin sodium cyanide bisa ga girman ƙwayar ma'adinai abu ne mai rikitarwa amma aiki mai mahimmanci a cikin tsarin cyanidation. By fahimtar tasiri inji na tama barbashi size, daidai aunawa da barbashi size, da kuma bin dace daidaita ka'idoji da hanyoyin, da ma'adinai sarrafa masana'antu iya inganta yadda ya dace na cyanidation leaching, rage sinadaran amfani, da kuma bunkasa overall tattalin arziki da muhalli amfanin.