
A fannin hakar zinare, tsarin cyanidation ya kasance ginshiƙi na fitar da zinare daga ma'adanai. Duk da haka, batun yawan shan sinadarin sodium cyanide yayin zubar da zinare ba wai kawai yana ƙara farashin aiki ba, har ma yana haifar da manyan haɗarin muhalli da aminci. Wannan rubutun yana zurfafa bincike kan tushen dalilan, hanyoyin gano abubuwa masu inganci, da mafita masu amfani don magance wannan matsala da ta zama ruwan dare.
Fahimtar Dalilan Tushen
1. Halayen Ore
Ilimin Ma'adinai Mai Hadaka : Ma'adanai masu tarin ma'adanai na iya haifar da yawan shan cyanide . Misali, ma'adanai na sulfide suna amsawa da cyanide, suna samar da mahaɗan thiocyanate. Arsenopyrite da pyrrhotite a cikin ma'adinan na iya cinye cyanide ta hanyar oxidation da combication reactions, suna karkatar da shi daga tsarin haƙo zinare.
Yawan Carbon : Ma'adanai na Carbon suna ɗauke da sinadarai na halitta waɗanda ke shanye hadaddun sinadarai na zinare da cyanide, wani abu da aka sani da "preg-robbing." Wannan yana tilasta ƙara ƙarin cyanide don rama asarar ingancin cirewa, wanda ke haifar da yawan amfani da shi.
2. Abubuwan Aiki
Rashin Ingantaccen Haɗawa : Rashin isasshen haɗuwa yayin aikin fitar da ruwa yana haifar da rashin kyawun hulɗa tsakanin ma'adinan da ruwan cyanide. Wannan yana hana narkewar zinare kuma yana sa masu aiki su ƙara ƙarin cyanide da fatan inganta yawan fitar da ruwa.
Matakan pH marasa kyau : Cyanidation yana dogara sosai akan pH, tare da madaidaicin kewayon yawanci tsakanin 10.5 da 11.5. pH ƙasa da wannan kewayon yana sa cyanide ya koma iskar hydrogen cyanide, wanda ke rage samuwarsa don narke zinare. A gefe guda kuma, pH mai yawa zai iya lalata maganin cyanide, wanda hakan kuma yana ba da gudummawa ga ƙaruwar amfani.
3. Ingancin Ruwa
Ruwan Tauri : Ruwa mai yawan sinadarin calcium, magnesium, da sauran ions na ƙarfe na iya yin aiki da cyanide, wanda hakan zai samar da hadaddun cyanide na ƙarfe mara narkewa. Waɗannan halayen suna lalata cyanide a cikin ruwan da ke fitar da sinadarin, wanda hakan ke buƙatar ƙarin ƙarin cyanide.
Yawan Iskar Oxygen da Ya Narke : Duk da cewa iskar oxygen tana da mahimmanci don iskar oxidation na zinare yayin iskar oxidation, yawan wuce gona da iri na iya hanzarta iskar oxidation na cyanide da kanta, wanda ke haifar da raguwar saurin lalacewa da ƙaruwar amfani da shi.
Hanyoyin Gano
1. Samfura da Nazari akai-akai
Tattara samfuran maganin leaching a matakai daban-daban na tsari, gami da ciyarwa, tsaka-tsaki, da wuraren fitarwa. Bincika waɗannan samfuran don tattarawar cyanide ta amfani da hanyoyi kamar titration, ion chromatography, ko ƙididdigar launi. Kwatanta matakan cyanide da aka auna tare da ƙididdiga na ƙididdigewa zai iya taimakawa wajen gano tsarin amfani mara kyau.
2. Ma'auni na Tsarin Sa ido
Ci gaba da lura da mahimman sigogin aiki kamar pH, zafin jiki, saurin tashin hankali, da abun cikin oxygen. Bambance-bambance daga mafi kyawun jeri na iya nuna yuwuwar al'amurra waɗanda ke ba da gudummawa ga yawan amfani da cyanide. Aiwatar da tsarin sa ido na atomatik wanda zai iya haifar da ƙararrawa lokacin da sigogi suka ɓace daga iyakokin da aka saita.
3. Halayen Ore
Gudanar da cikakken nazarin ma'adinai da sinadarai na batches mai shigowa. X-ray diffraction (XRD), duban lantarki microscopy (SEM), da atomic absorption spectroscopy (AAS) na iya ba da haske game da abun da ke ciki na ma'adinai, taimakawa wajen hango amfanin cyanide da daidaita tsarin leaching daidai.
Ingantattun Magani
1. Maganin Kaya
Maganin Oxidative Pre-Maganin : Ga ma'adanai masu ɗauke da ma'adanai na sulfide, ana iya amfani da hanyoyin magance oxidative kafin a gasa su, oxidation na matsi, ko bio-oxidation. Waɗannan hanyoyin suna rushe ma'adanai na sulfide, suna rage amsawar su da cyanide da kuma inganta ingancin fitar da zinare yayin da suke rage yawan amfani da cyanide.
Cire Carbon : Idan aka yi amfani da ma'adinan carbon aceous, kafin a fara leaking da carbon mai aiki ko wasu sinadarai masu cire carbon zai iya taimakawa wajen kawar da tasirin preg-sabbing. Wannan yana bawa cyanide damar mai da hankali kan narkar da zinare maimakon cinye shi da sinadarin carbon.
2. Inganta Tsari
Daidaitawar Tashi da Iska : Tabbatar da matakan motsa jiki da iska mai kyau don haɓaka haɗuwa iri ɗaya da kuma canja wurin iskar oxygen mafi kyau. Yi gwaje-gwajen sikelin gwaji don tantance saurin motsawa da ƙimar iska mai kyau ga nau'ikan ma'adinai daban-daban da yanayin fitar ruwa.
Kula da pH : Shigar da tsarin sarrafa pH ta atomatik wanda zai iya daidaita pH na maganin cire ruwa. Yi amfani da lemun tsami ko sodium hydroxide don kiyaye pH a cikin mafi kyawun kewayon, hana lalata cyanide da kuma tabbatar da ingantaccen narkewar zinare.
3. Maganin Ruwa
Rage Taushi : A shafa ruwa a cikin ruwan da aka yi amfani da shi don cire ions masu haifar da tauri. Ana iya amfani da resin musayar ion ko kuma laushin lemun tsami don haifar da ions na calcium da magnesium, wanda hakan zai rage tsangwama da suke yi da maganin cyanide.
Gudanar da Iskar Oxygen : Inganta samar da iskar oxygen ga tsarin fitar da iskar. Yi amfani da na'urori masu auna iskar oxygen don sa ido da kuma sarrafa abubuwan da ke cikin iskar oxygen da aka narkar, don tabbatar da cewa ya isa ga iskar oxygen ta zinare amma ba ta wuce gona da iri ba don haifar da lalacewar cyanide.
4. Gudanar da Reagent
Maye gurbin Cyanide : Bincika amfani da wasu magungunan cire ruwa kamar su thiosulfate, thiourea, ko maganin chloride. Waɗannan madadin na iya bayar da ƙarancin tasirin muhalli da yuwuwar ƙarancin amfani idan aka kwatanta da Sodium Cyanide , musamman ga wasu nau'ikan ma'adanai.
Sake Amfani da Reagent : Aiwatar da tsarin dawo da cyanide da sake amfani da su. Ana iya amfani da fasahohi kamar musayar ion, electrowinning, da membrane filtering don dawo da su da sake amfani da cyanide daga wutsiyoyin da ke fitar da ruwa, wanda ke rage yawan amfani da su da kuma samar da sharar gida.
m Matakan
1. Horon Ma'aikata
Bayar da cikakken horo ga ma'aikatan hakar ma'adinai da sarrafawa akan hanyoyin cyanidation, aikin kayan aiki, da kiyayewa. Ma'aikatan da aka horar da su sun fi iya ganowa da magance matsalolin cikin sauri, tabbatar da aikin leaching yana gudana cikin tsari da inganci.
2. Data Analytics da Modeling
Yi amfani da kayan aikin nazarin bayanai da aiwatar da dabarun ƙirar ƙira don tantance bayanan tarihi da na ainihi. Ta hanyar gano abubuwan da ke faruwa da alaƙa, masu aiki za su iya tsinkayar yuwuwar matsalolin da ke da alaƙa da amfani da cyanide kuma su ɗauki matakan da suka dace don hana su.
3. Aiki na yau da kullun da dubawa
Gudanar da bincike na yau da kullun na ciki da na waje na tsarin cyanidation. Wadannan binciken na iya taimakawa wajen gano wuraren da za a inganta, tabbatar da bin ka'idojin muhalli da aminci, da kuma kula da ingantaccen aikin leken asirin gwal.
A ƙarshe, magance yawan shan sinadarin sodium cyanide a ma'adinan zinare yana buƙatar wata hanya mai fuskoki da dama wadda ta ƙunshi fahimtar tushen musabbabin, aiwatar da ingantattun hanyoyin ganowa, amfani da hanyoyin da suka dace, da kuma ɗaukar matakan rigakafi. Ta hanyar yin hakan, kamfanonin haƙar ma'adinai ba wai kawai za su iya rage farashi ba, har ma da inganta dorewar muhalli na ayyukan haƙar zinare.
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