Ukusetyenziswa kwayo yonke into - i-Slime Cyanidation Oxygen - Inkqubo ye-Rich Leaching Process

intshayelelo

Kushishino lokwembiwa kwegolide, inkqubo yokwenziwa kwe slime cyanidation kudala iyindlela esetyenziswa ngokubanzi yokukhupha igolide kwintsimbi ekrwada. Le nkqubo iqala ngokusila yonke intsimbi ekrwada ibe ngamasuntswana amahle, ngokuqhelekileyo ngomlinganiselo obalulekileyo wamasuntswana amancinane kune 74 micrometers ( - 200 mesh). I-ore slurry enesiphumo iphathwa ngayo i-cyanide. I-Cyanide ion idibana negolide kwintsimbi ekrwada, yenze igolide enyibilikayo - iikhompawundi zecyanide. Ezi khompawundi zinokuphinda zisetyenzwe ukuze kubuyiselwe igolide.

Uphuculo olubalulekileyo kuyo yonke inkqubo ye-slime cyanidation kukuqaliswa kweoksijini-etyebileyo yokuvuza. Olu lwandiso lubonakalise amandla amakhulu ekuphuculeni impumelelo kunye nokusebenza kakuhle kwe Ukutsalwa kwegolide.

Umgaqo-siseko we-Oxygen - Isityebi esongeziweyo seCyanide Leaching

Inkqubo ye-oxygen-etyebileyo yegolide yokuvuza, nekwaziwa ngokuba yinkqubo ye-CIG ye-oxygenation, ithatha indawo yesiqhelo sokusebenzisa umoya ocinezelweyo kwitanki yokuvuza ngeoksijini esulungekileyo. Xa ioksijini ecocekileyo ingeniswa kwitanki yokuvuza ukusuka ngaphantsi kwe-agitator, inyibilika kwi-ore slurry. Umgaqo ongundoqo kukuba ukuchithwa kwegolide kwizisombululo ze-cyanide kwenzeka nge-electrochemical reaction. Ioksijeni isebenza njenge-oxidizing agent, enceda ukunyibilikisa igolide ngokufanelekileyo.

Uninzi lwezityalo ze-cyanide zisebenza phantsi kweemeko apho umlinganiselo we-cyanide ion kwi-oksijini ungaphezulu kwe-6. Kwiimeko ezinjalo, isantya sokuchithwa kwegolide sixhomekeke ekubeni i-oksijini inokusasazeka ngokukhawuleza kangakanani kwi-reaction. Ngokusebenzisa i-oksijeni ecocekileyo, inani le-oksijini echithwe kwi-slurry liyanda, elikhawuleza ukusabela ngokubanzi. Uphando lubonisa ukuba ukuvuza kwegolide ngeoksijini kujikeleze kahlanu ngokukhawuleza kunomoya.

Izinto eziluncedo ze-Oxygen-I-Leaching Rich in All-Slime Cyanidation

1. Ukonyuka kweSpeed ​​​​Leaching and Rate Recovery

Uxinzelelo oluphezulu lwe-oxygen kwi-slurry lukhokelela ngokuthe ngqo kwisantya esikhawulezayo sokukhupha. Ngokuchithwa kwegolide ngokukhawuleza, ixesha elipheleleyo le-leaching lingancitshiswa kakhulu. Oku akukhuphi nje umthamo wemihla ngemihla wokusetyenzwa komzi-mveliso kodwa kukwavumela ukuba kutsalwe ngokufanelekileyo ngakumbi igolide kwintsimbi ekrwada. Ngenxa yoko, izinga lokubuyisela igolide lingaphuculwa, likhokelela kwizivuno eziphezulu zale ntsimbi exabisekileyo.

2. UkuNcitshiswa kokuSetyenziswa kweCyanide

Ukusebenzisa i-oksijini ecocekileyo kwinkqubo ye-leaching inokunciphisa Ukusetyenziswa kwe-cyanide ukusuka kwi-5% ukuya kwi-85%. Kukho izizathu ezahlukeneyo zoku. Okokuqala, xa kusetyenziswa ioksijini ecocekileyo endaweni yomoya, ubungakanani ICarbon i-dioxide ekutyibilikeni iyancipha. I-carbon dioxide inokusabela kunye ne-cyanide, nto leyo ebangela ukuba isetyenziswe kwiimpendulo ezingezizo. Ukuba i-carbon dioxide incinci, ezi mpendulo ezingezizo ziyancitshiswa. Okwesibini, isantya sokukhupha amanzi ngokukhawuleza sinciphisa impembelelo yezinye iimpendulo ezingezizo ezisebenzisa i-cyanide. Okwesithathu, i-oxygen ecocekileyo inokwenza izinto ezikwi-ore ebezingayi kusebenzisa i-cyanide, nto leyo enciphisa ngakumbi inani le-cyanide efunekayo kwinkqubo yokukhupha amanzi.

3. IiMfuno zeZixhobo ezincinci

Ukuba amandla okukhupha amanzi ahlala engaguquki, ioksijini-etyebileyo yokuvuza inokunciphisa kakhulu ubungakanani betanki yokuvuza. Ngenxa yokuba isantya sokuvuza ngokukhawuleza sivumela umlinganiselo ofanayo wegolide ukuba ulungiswe ngexesha elifutshane, umthamo omncinci wokuphendula wanele. Ukunciphisa ubungakanani besixhobo sokuvuza kunokukhokelela ekongiweni kweendleko ngokwemigaqo yokuthengwa kwezixhobo, ukufakwa, kunye nesithuba esipheleleyo esifunwa yiplanti yokulungisa.

Amatyala okufaka isicelo

Icandelo 1: 

Isetyenziswe ngaphambili inkqubo yesiqhelo yonke -i-slime cyanidation ene-aeration yomoya. Ngenxa yobume bentsimbi ekrwada entsonkothileyo, ukufikelela kumazinga aphezulu okubuyisela igolide kwaba ngumngeni. Emva kokuphunyezwa kwe-oksijini ye-slime cyanidation - inkqubo etyebileyo ye-leaching, uphuculo olumangalisayo luye lwabonwa. Ixesha lokucheba lenziwe ngesiqingatha, kwaye izinga lokubuyiswa kwegolide linyuke ukusuka kuma-80% ukuya kuma-90%. Ukongeza, ukusetyenziswa kwe-cyanide kwehle nge-30%, okubangele ukongiwa kweendleko ezibalulekileyo kumgodi.

Icandelo 2: 

ngumgodi wegolide omkhulu onesakhono sokwenza umthamo ophezulu. Ngokwamkela inkqubo yeoksijini-etyebileyo yokutyhutyha kwinkqubo yabo ye-slime cyanidation, bakwazile ukwandisa imveliso yabo yegolide yemihla ngemihla ngama-20%. Lo mgodi uphinde wachaza ukuthotywa kweendleko zokusebenza zizonke, ikakhulu ngenxa yokusetyenziswa okuphantsi kwecyanide kunye nokusetyenziswa ngokufanelekileyo kwezixhobo. Ukuphunyezwa okuyimpumelelo [eGama leMgodi 2] ngumzekelo weminye imigodi kwingingqi ukuba iqwalasele ukuphuculwa kweenkqubo zayo zokumba.

Imingeni kunye nezisombululo ekuPhumezeni i-Oxygen-i-Rich Leaching

1. Iinkxalabo zoKhuseleko

Ukuphatha ioksijini ecocekileyo kufuna iiprothokholi ezingqongqo zokhuseleko. Ioksijeni iyasebenza kakhulu, kwaye ukuphathwa ngendlela engafanelekanga kunokukhokelela kumngcipheko womlilo okanye uqhushumbo. Ukujongana nale nto, imigodi kufuneka ityale imali kwi-oksijini yokugcina kunye neenkqubo zokuhambisa ezihlangabezana nemigangatho yokhuseleko. Uqeqesho oluthe gqolo ngokhuseleko lwabasebenzi ababandakanyekayo kwinkqubo yokukhutshwa kweoksijini etyebileyo nayo ibalulekile ukuqinisekisa ukuba bayaziqonda iingozi ezinokubakho kunye nendlela yokusebenza ngokukhuselekileyo kwezixhobo ezinxulumene neoksijini.

2. Ukuhambelana kweZixhobo

Ukunyuselwa kwisixokelelwano esityebileyo se-oksijini kunokufuna ukulungiswa kwezixhobo esele zikho. Izinto ezisetyenziswa ekwakhiweni kweetanki ezivuzayo, ii-agitators, kunye nemibhobho kufuneka zihambelane neoksijini ukuthintela ukubola nokuqinisekisa ukusebenza kwexesha elide. Kwezinye iimeko, kunokuba yimfuneko ukutshintsha amacandelo athile ngeoksijini-izinto ezixhathisayo njengentsimbi engatyiwa okanye iipolima ezikhethekileyo.

3. Iindleko ze-Oxygen Supply

Iindleko zokufumana kunye nokubonelela ngeoksijini ecocekileyo inokuba yinkxalabo kweminye imigodi. Nangona kunjalo, ugcino oluvela ekunciphiseni ukusetyenziswa kwe-cyanide kunye nokunyuka kwamazinga okubuyisela igolide kudla ngokugqithisa iindleko ze-oxygen kwixesha elide. Imigodi inokuphonononga iindlela ezahlukeneyo zobonelelo ngeoksijini, njengezityalo zokuvelisa ioksijini kwindawo okanye iikontraka zexesha elide nabanikezeli abathembekileyo, ukwenza inkqubo ye-oksijini-etyebileyo yokukhutshwa kwexabiso eliphezulu-isebenze ngakumbi.

isiphelo

Yonke - i-slime cyanidation oxygen - inkqubo etyebileyo ye-leaching ibonelela ngeenzuzo ezibalulekileyo kwishishini lokutsalwa kwegolide. Ngokunyusa isantya sokuvuza, ukuphucula amazinga okubuyisela igolide, ukunciphisa ukusetyenziswa kwecyanide, kunye nokunciphisa ubungakanani besixhobo, le nkqubo inamandla okuphucula inzuzo kunye nozinzo lwemigodi yegolide. Nangona kukho imingeni ekuphunyezweni kwayo, kunye namanyathelo okhuseleko afanelekileyo, ukuphuculwa kwezixhobo, kunye nezicwangciso-qhinga zokuphucula iindleko, imigodi emininzi kunokwenzeka ukuba yamkele obu buchwephesha bobuchwephesha kwixa elizayo. Njengoko imfuno yegolide iqhubeka nokukhula, iindlela ezisebenzayo zokutsalwa njengeoksijini-i-leaching etyebileyo iya kudlala indima ebalulekileyo ekuhlangabezaneni nale mfuno ngelixa kuncitshiswa iimpembelelo zokusingqongileyo kunye nezoqoqosho.