Iindlela ezintlanu zokuphucula isiphumo seGold Ore Heap Leaching

Imfumba yemfumba ineenkqubo ezimbini: ukukhutshwa kwecyanide kunye nokubuyiswa kwegolide kwisisombululo segolide esikhulelweyo. Umgangatho we i-cyanide ukuvuza kunefuthe elithe ngqo kwimpumelelo yemfumba. Oku kulandelayo kwazisa imiba emihlanu malunga nendlela yokuphucula isiphumo sokutsalwa kwegolide ngokuvundiswa kwemfumba.

1. Ukusetyenziswa kweTekhnoloji yeGranulation

Ngexesha lokuvuzwa kwentsimbi ekrwada yegolide, intsimbi ekrwada enodongwe oluphezulu okanye imathiriyeli ecolekileyo ayilungelanga ukuvuzwa kwimfumba ethe ngqo kwaye ifuna ukunyangwa kwangaphambili kwegranulation ukuphucula ukugqobhoza komoya kwimfumba yentsimbi. Igranulation pretreatment inokunyusa umyinge wokuvuza kwegolide kwaye, kumaxesha amaninzi, inyuse kakhulu izinga legolide evuzayo. Ngokuxhomekeke kwimeko, i-ore inokuthi ihlanjululwe ngokupheleleyo, okanye i-granulation kuphela ilungile okanye i-granulation encinci inokwenziwa.

Umzekelo, ngo-1991. umgodi wegolide e-Xinjiang, e-China, wenza owona mkhulu- (i-24.000 tons) i-granulation heap leaching okokuqala. Ixesha lokufundisa lacuthwa ngeentsuku ezingama-35 xa kuthelekiswa nemfumba ethe ngqo, kwaye izinga leleaching linyuke ukusuka kuma-49.69% ukuya kuma-81.5%.

2. Ukuphucula ukuNgqina kwemfumba yentsimbi kunye nesisombululo

I-piling yinxalenye ebalulekileyo yenkqubo yokuvuza kwemfumba yegolide. Imfumba yentsimbi ekrwada iyonke kufuneka ibenokungena ngendlela efanayo ukunqanda umjelo okanye imivalo yendawo. Ke ngoko, kuyacetyiswa ukuba kusetyenziswe isixhobo sokwakha imfumba yentsimbi esele imile okwearc esele imile kwaye yamkele inkqubo yokuhamba kwe "segmented stacking, cross - spraying, kunye ne-multi-stage counter - current leaching". Emva koko, tofa umoya kwimfumba yentsimbi kwaye ubeke imibhobho yokuqokelela ulwelo ukuphucula ukugqobhoza komoya kwemfumba yentsimbi kunye nesiphumo sokuvuza.

Ngokwesiqhelo, izixhobo ezinceda ekungeneni kweoksijini kufuneka zifakwe ngexesha lokufunxa ukuze kuphuculwe ukungeneka komoya kunye nesantya sokuvuza kwemfumba.

Umzekelo, kwimfumba ye-leaching, iintonga zoononkala, iityhubhu ze-bamboo, njl. Emva kokuvuza kangangexesha elithile, ezi zinto zingcwatyiweyo ziyatsalwa ukuze kuphuculwe ukugqobhoza kwegolide. Okanye, emva kokuvuza kwemfumba kangangexesha elithile, uqhushumbo olwenzekayo lwengingqi lwenziwa emanzini - iindawo eziqokelelweyo, ezinokukhulula imfumba yentsimbi kunye nokuphucula ukutyhutyha.

Iziphumo zophando eziphuma kwiHazen Research Institute eUnited States zibonisa ukuba ukonyusa isiqulatho seoksijini kwimfumba yentsimbi akunako nje ukuwenza mfutshane umjikelo wokuvuza phantse ngesinye kwisithathu kodwa konyusa izinga legolide evuzayo.

3. Ukugcina iqondo lobushushu obufanelekileyo

Indlela ye-cyanidation ineemfuno eziphezulu zobushushu. Ke ngoko, kwiimeko ezibandayo zemozulu, umqobo ophambili wokwenza imfumba yokuvuza bubushushu bobushushu. Xa iqondo lobushushu lingaphantsi kwe-10 ° C, izinga lokuchithwa kwegolide liya kuhla ngokukhawuleza. Ukophula umlinganiselo wobushushu kwaye kwandiswe ixesha lokuvuza kweemfumba, isisombululo kufuneka sifudunyezwe phambi kokuvuza size sithunyelwe kwimfumba yentsimbi.

Eminye imigodi yaseCanada isebenzisa ubushushu obuyinkunkuma ukufudumeza isisombululo, ngaloo ndlela yandisa ixesha lokusebenza kwemfumba. Umgodi weGolide waseRichmond Hill eSouth Dakota, eU.SA, usebenzisa izixhobo zokunkcenkceshela kunye nobushushu-ukufunxa kwimfumba ukuphumeza imveliso eqhubekayo ubusika bonke.

4. Ukusetyenziswa kweDrip Irrigation

Ukunkcenkceshela ngokutshiza kunye nokunkcenkceshela ngamathontsi ziindlela ezimbini ezahlukeneyo zokusasaza ulwelo kwinkqubo yokuvuza kwemfumba, zombini ezinokuvelisa isiphumo esifanayo sosasazo lolwelo.

Nangona kunjalo, isixa se-solvent ye-leaching kwindlela yokutshiza akulula ukulawula, izinga lokuvuza akulula ukunyuka, kwaye kwangaxeshanye, i-cyanide encinci - equlethe amathontsi amanzi atshizwe emoyeni kulula ukusasaza kwaye ingcolise indalo. Ukunciphisa ukusetyenziswa kwamandla kunye nokunyusa izinga lokuvuza, indlela yokunkcenkceshela i-drip inokwamkelwa.

Izinto eziluncedo zokunkcenkceshela ngeDrip

• Ukunkcenkceshela kwe-drip kunokunyusa umxholo womoya kwisisombululo, oko kukuthi, umxholo we-oksijini othatha inxaxheba kwi-chemical reaction yanda, ngaloo ndlela ukwandisa umsebenzi wemvula yegolide.

• Ukunkcenkceshela kwe-drip kunokulawula ngokuchanekileyo ukuxinwa kwesisombululo se-cyanide kunye nokunciphisa ilahleko Isodium cyanide emoyeni.

• Ukunkcenkceshela ngamathontsi kulula ukongeza izixhobo zokulawula ubushushu ukufikelela injongo yokwandisa iqondo lobushushu lemfumba leaching ukusabela imichiza.

• Ukunkcenkceshela ngeDrip kunenqanaba eliphezulu lokuzisebenzela, ukusebenza kakuhle kwemveliso, kunye neendleko zemveliso eziphantsi ngokwentelekiso.

5. Ukusetyenziswa kweeFilter Aids

Njengesongezo, i-leaching aid yongezwa kwi-cyanide-leached pulp. Kwelinye icala, inokonyusa unxibelelwano phakathi kwecyanide negolide; kwelinye icala, inokuphelisa okanye inciphise impembelelo yezinto ezingcolileyo ezinobungozi kwi-cyanide leaching yegolide, ngaloo ndlela iphucula ukuchithwa kunye nefuthe le-leaching ye-leaching aid kwigolide, ekugqibeleni ukunciphisa iindleko zemveliso kunye nokuphucula inzuzo yezoqoqosho kumashishini.

Uncedo oluqhelekileyo lokuvuza ngexesha lenkqubo yokuvuza imfumba lubandakanya ii-oxidants, ii-ejenti eziphuculweyo zokuvuza, iiarhente zokumanzisa, njl.

• Ukongeza i-oksijeni - equkethe i-oxidants (H₂O₂, CaO₂, Na₂O₂, njl.) ngexesha lenkqubo ye-cyanide leaching inokunyusa "i-oksijini esebenzayo esebenzayo" kwi-pulp, ngaloo ndlela iphucula umphumo we-leaching ore yegolide.

• Ukongeza umlinganiselo ofanelekileyo we-agent emanzi okanye i-ejenti ephuculweyo ye-leaching kwisisombululo se-cyanide ilungele ukungena kwesisombululo se-cyanide kwaye ikhuthaza ukusabela phakathi kwesisombululo se-cyanide kunye negolide edibeneyo.

6. Isiphelo

Eli nqaku lixoxa ikakhulu ngenkqubo yokukhutshwa kwemfumba yemigodi yegolide. Inkqubo yokukhutshwa kwemfumba ineempawu zeziseko ezingundoqo ezilula, ukusebenza kakuhle, kunye nokuhlala kwindawo enoqoqosho, eyamkelwa ngabanini migodi yegolide abaninzi. Nangona kunjalo, isiphumo sokutsalwa kwegolide kwenkqubo yemfumba yemfumba ichatshazelwa yimiba emininzi. Kucetyiswa ukuba abanini migodi bayile isicwangciso semfumba esifanelekileyo ngoyilo lwesikimu sezenzululwazi. Vavanya kwaye ukhethe izixhobo ezifanelekileyo zemfumba, kwaye uhlengahlengiso lunokwenziwa ngokwemeko yokwenyani yomzi-mveliso ngokubhekisele kwezi ngongoma zintlanu zilandelayo:

• Ukusetyenziswa kobuchwephesha begranulation kwiintsimbi ezikrwada ezinamabakala acolekileyo-ziinkozo okanye umxholo wodongwe ophezulu kunye nokungangeni komoya kakubi.

• Ukuphucula ukungeneka kwemfumba yentsimbi kunye nesisombululo.

• Ukugcina ubushushu obufanelekileyo be-leaching.

• Ukusetyenziswa kokunkcenkceshela ngethontsi.

• Ukusetyenziswa kwezixhobo zokucoca.

Ukuba unomdla kwinkqubo yemfumba leaching, nceda ushiye umyalezo ukunxibelelana nathi okanye uqhagamshelane nenkonzo yethu yabathengi online, kwaye siya kuqhagamshelana nawe ngokukhawuleza kangangoko kunokwenzeka.