Uphando ngoVavanyo lweMveliso yokuNcitshiswa kokuSetyenziswa kweSodium Cyanide kwiCyanide Carbon-in-Pulp Plant

1. intshayelelo

Kwishishini lemigodi yegolide, i-Cyanide leaching yindlela esetyenziswa kakhulu yokukhupha igolide kwi-ore. Nangona kunjalo, ukusetyenziswa kwe -Sodium cyanide , ikhemikhali enobungozi kakhulu, akugcini nje ngokuba yingozi enkulu kwindalo esingqongileyo nakwizokhuseleko kodwa kukwabangela neendleko eziphezulu. Ukunciphisa ukusetyenziswa kwe- Sodium Cyanide kwi- cyanide Izityalo ze-Carbon -in-pulp kube ngumsebenzi ongxamisekileyo wokuphucula ukusebenza kakuhle kwezoqoqosho kunye nobuhlobo kwindalo esingqongileyo kwinkqubo yemveliso. Eli nqaku libonisa iziphumo zovavanyo lwemveliso olujolise ekunciphiseni ukusetyenziswa kwe -sodium cyanide kwisityalo se-cyanide carbon-in-pulp.

2. Imvelaphi yeNgxaki

Ukusetyenziswa okuphezulu kwe-sodium cyanide kwizityalo ze-cyanide carbon-in-pulp ikakhulu ngenxa yezinto ezininzi. Okokuqala, ubukho bokungcola okwahlukeneyo kwi-ore, njengobhedu, i-zinc, kunye nentsimbi, kunokusabela nge-cyanide, okukhokelela ekusetyenzisweni kwesixa esikhulu se-sodium cyanide. Okwesibini, ulawulo olungafanelekanga lweemeko zokuvuza, njengexabiso le-pH, ubushushu, kunye nesantya somoya, kunokukhokelela ekwandeni kokusetyenziswa kwe-sodium cyanide. Ukongezelela, ukungasebenzi kakuhle kwezixhobo zokutshiza kunye nenkqubo yokuhlaziya isisombululo se-cyanide kunokunyusa ngakumbi le ngxaki. Ngoko ke, kuyimfuneko ukuqhuba uphando olunzulu kunye nokuhlola ukufumana amanyathelo asebenzayo okunciphisa ukusetyenziswa kwe-sodium cyanide.

3. Iindlela zophando

3.1 Ubume bentsimbi

Inyathelo lokuqala lophando yayikukuqhuba inkcazo eneenkcukacha yentsimbi ekrwada esetyenziswe kwisityalo secyanide carbon-in-pulp. Ukwakheka kweekhemikhali, i-mineralogy, kunye nokuhanjiswa kobungakanani besuntswana lentsimbi ekrwada zahlalutywa. Olu lwazi lwalubalulekile ekuqondeni ukusabela okunokubakho phakathi kwamacandelo e-ore kunye ne-sodium cyanide kunye nokuqulunqa izicwangciso ezifanelekileyo zokunciphisa ukusetyenziswa kwe-sodium cyanide.

3.2 UkuPhuculwa kweeMeko zokuLeaching

Uthotho lwemifuniselo lwenziwa ukulungiselela iimeko zokuvuza. Iziphumo zexabiso le-pH, ubushushu, izinga lomoya, kunye nexesha lokuvuza ekusetyenzisweni kwe-sodium cyanide kunye nesantya sokutsalwa kwegolide. Iindibaniselwano ezahlukeneyo zezi parameters zavavanywa, kwaye iimeko ezifanelekileyo zamiselwa ngovavanyo olubanzi.

3.3 Ukulungiswa kwentsimbi ekrwada

Ukunciphisa impembelelo engafanelekanga yokungcola kwi-ore kwi-sodium cyanide yokusetyenziswa, iindlela zokulungiswa kwangaphambili zihlolwe. Iindlela ezimbini eziphambili zonyango, ezizezi, ukudada nokuqhotswa, zavavanywa. Indlela ye-flotation ijolise ekwahluleni iiminerali ezixabisekileyo kwizinto ezingcolileyo, ngelixa indlela yokutshisa yayisetyenziselwa i-oxidize iiminerali ze-sulfide kunye nokususa ezinye zezinto ezingcolileyo ezinokudla i-cyanide.

3.4 Ukuphuculwa kweCyanide Recycling System

Ukusebenza kakuhle kwenkqubo yokubuyisela i-cyanide kuchaphazela ngokuthe ngqo ukusetyenziswa kwe-sodium cyanide. Kolu phando, uphuculo lwenziwa kwinkqubo yokurisayikilishwa kwecyanide. Itekhnoloji entsha kunye nezixhobo zaye zaziswa ukunyusa izinga lokubuyisela i-cyanide ukusuka kwi-tailings kunye nesisombululo se-leaching. Ukongeza, umgangatho wesisombululo secyanide esisetyenzisiweyo wajongwa ngononophelo kwaye wahlengahlengiswa ukuqinisekisa ukusetyenziswa kwayo okusebenzayo.

4. Iziphumo neengxoxo

4.1 Iziphumo zokuSebenzisa iMeko yokuLeaching

Ukulungiswa kweemeko zokutshiza kuzuze iziphumo ezimangalisayo. Ngokulungelelanisa ixabiso le-pH kuluhlu olufanelekileyo (malunga ne-10 - 11), ukwandisa izinga lokushisa kwi-30 - 35 ° C, kunye nokulawula izinga le-aeration kwi-0.5 - 1.0 L / min, ukusetyenziswa kwe-sodium cyanide kwancitshiswa kakhulu. Kwangaxeshanye, izinga lokutsalwa kwegolide lahlala lizinzile okanye lenyuka kancinci. Ezi ziphumo zibonise ukuba ulawulo olufanelekileyo lweemeko zokuvuza kunokukhuthaza ngokufanelekileyo ukusabela phakathi kwegolide kunye ne-cyanide ngelixa kuncitshiswa ukusetyenziswa ngokungeyomfuneko kwe-sodium cyanide.

4.2 Iziphumo zeOre Pretreatment

Iindlela zokucocwa kwentsimbi kwangaphambili zikwabonise iziphumo ezilungileyo. I-flotation pretreatment yahlula ngokufanelekileyo okunye ukungcola, okufana neeminerali zobhedu nezinc, kwintsimbi ekrwada. Ngenxa yoko, ukusetyenziswa kwe-sodium cyanide ngexesha lenkqubo ye-leaching elandelayo yancitshiswa malunga ne-20%. Ukuqhotsa kwangaphambili, nangona amandla amaninzi-amandla, nawo ayesebenza kakhulu. Emva kokugcadwa, iiminerali zesulfide kwintsimbi ekrwada zaye zafakwa ioksijini, kwaye ukusetyenziswa kwesodium cyanide kwehla malunga ne-30%. Nangona kunjalo, ukhetho lwendlela yonyango lwangaphambili kufuneka lusekelwe kwiimpawu ezithile ze-ore kunye nokuqwalaselwa ngokubanzi kwezoqoqosho kunye nokusingqongileyo kwesityalo.

4.3 Ukuphuculwa kweCyanide Recycling System

Ukuphuculwa kwenkqubo yokurisayikilishwa kwecyanide kunyuse kakhulu izinga lokubuyisela icyanide. Ubuchwepheshe obutsha kunye nezixhobo zenze ukuba izinga lokufunyanwa kwe-cyanide ukusuka kwiintsalela zezimbiwa linyuke ukusuka kwi-60% yantlandlolo ukuya ngaphezulu kwe-80%, kunye nomgangatho wesisombululo secyanide esisetyenzisiweyo nawo waphuculwa. Olu phuculo alunciphisanga kuphela inani le-sodium cyanide entsha efunekayo kwimveliso kodwa yanciphisa impembelelo yokusingqongileyo yokukhutshwa kwe-cyanide.

5. Izigqibo

Ngolu vavanyo lwemveliso, amanyathelo amaninzi asebenzayo afunyenwe ukunciphisa ukusetyenziswa kwe-sodium cyanide kwisityalo se-cyanide carbon-in-pulp. Ukuphucula iimeko zokuvuza, ukucofa intsimbi ekrwada, kunye nokuphucula inkqubo yokurisayikilishwa kwe-cyanide konke kunokunegalelo ekunciphiseni ukusetyenziswa kwe-sodium cyanide. La manyathelo akanakuthoba iindleko zemveliso kuphela kodwa aphucule nokusebenza kokusingqongileyo kwesityalo. Nangona kunjalo, kufuneka kuqatshelwe ukuba ukuphunyezwa kwala manyathelo kufuneka kuhlolwe ngononophelo ngokwemeko yokwenene yesityalo ngasinye, kuthathelwa ingqalelo izinto ezifana nezakhiwo zentsimbi, isikali semveliso, kunye nokuba nokwenzeka kwezoqoqosho. Uphando lwexesha elizayo lunokugxila ekuphuculeni ngakumbi ukusebenza kakuhle kwezi ndlela kunye nokuphonononga iteknoloji entsha ukuphumeza ukunciphisa okubalulekileyo ekusebenziseni i-sodium cyanide kwinkqubo ye-cyanide carbon-in-pulp.