Indlela Ye-Sodium Hydrosulfide Yokubuyisela Insimbi Eyigugu Emanzini Ane-Acidic

Background

Kule minyaka engamashumi amabili edlule, ngokuthuthuka okusheshayo kwesayensi nobuchwepheshe kanye nokwakhiwa komnotho, isidingo semithombo yezimbiwa sikhula usuku nosuku. Ukutholakala kwama-ore acebile ambiwa kalula futhi akhethiwe kuya ngokuya kungavamile. Ukumbiwa kwezimbiwa eziyinkimbinkimbi ezinosayizi wezinhlayiyana ezigxilile kanye namabanga aphansi kuyakhula, futhi kunezidingo ezikhulayo zezinhlobonhlobo nekhwalithi yomkhiqizo. Ukuze kuhlangatshezwane nezidingo zemikhakha eyahlukene yomnotho wezwe mayelana nemikhiqizo yezimbiwa, kunesidingo esiphuthumayo sokuthuthukisa izindlela ezintsha zokucubungula izimbiwa ezisebenza kahle, ezizuzisa umnotho, futhi ezilungele ukuphathwa kwemvelo.

Indlela yokubuyisela izinsimbi ezibalulekile emanzini ane-asidi usebenzisa I-sodium hydrosulfide inezinga eliphezulu lokululama kanye nezinzuzo ezibalulekile zezomnotho. Inqubo ihlanganisa lezi zinyathelo ezilandelayo:

01.Ithangi Lokugcina Amanzi Elisezingeni Eliphezulu

Amanzi aneasidi akhiqizwa ngesikhathi sokumbiwa aqala ngokugeleza esuka ethangini lokugcina amanzi esezingeni eliphezulu aye ethangini lokuqala lokususa insimbi, lapho kwengezwa khona umcako. Ama-ion e-iron angama-trivalent emanzini ane-acidic ancipha kanye ne-calcium sulfate, futhi iningi lama-ion e-iron angama-trivalent akhishwa emanzini ane-asidi.

02.Ithangi Lokuqala Lokususwa Kwensimbi

Uketshezi olusabelayo lugeleza lusuka ethangini lokusabela lokususwa kwensimbi luye kuthangi lokuqala lokukhipha umoya, lapho kwengezwa khona i-flocculant.

03.Ithangi Lesibili Lokukhipha Insimbi

Amanzi aluhlaza, ahlanganiswe kahle ne-lime slurry kanye ne-flocculant, ageleza ethangini elijiyayo lokukhipha insimbi, lapho i-iron hydroxide ne-calcium sulfate precipitate zifika phansi ethangini elijiyayo.

04.Ithangi Lokuqala Lokukhipha Igesi

Amanzi ane-asidi aqukethe ama-ion ensimbi abalulekile, okuye kwakhishwa kuwo inani elikhulu lama-ion e-iron ayingxenye, ageleza ngamandla adonsela phansi angene esikhunjeni se-metal sulfide.

05.Metal sulfide Reactor

Ku-metal sulfide reactor, amanzi ane-asidi axutshwe kahle ne-metal sulfide precipitate ne-sodium hydrosulfide, akhiqiza izinhlayiya ze-metal sulfide.

06.Ithangi Lesibili Lokukhipha Ugasi

Uketshezi oluxubile oluqukethe i-metal sulfide concentrate lugeleza ngamandla adonsela phansi lungene ethangini lesibili le-degassing elixhunywe ku-reactor yensimbi ye-sulfide, lapho i-flocculant yengezwa khona ukuze ikhuthaze ukuhlangana kwezinhlayiya ze-metal sulfide zibe yizinhlayiya ezinkulu.

07.Metal sulfide Thickening Tank

I-concentrated metal sulfide precipitate ihlala phansi ethangini lokujiya lensimbi ye-sulfide. I-scraper isusa imvula emisiwe iye phakathi nendawo engaphansi kwethangi elijiyayo. Iphampu ye-reflux ilokhu igaya kabusha ingxenye yemvula isuka phansi ethangini elijiyayo ibuyela ethangini lokusabela lokukhipha insimbi, kuyilapho imvula esele ithunyelwa enqwabeni yedwala lemfucuza ngephampu ehambisayo.

08.Metal sulfide Thickening Tank

Iphampu ejikelezayo iqhubeka nokugaywa kabusha ingxenye yemvula kusukela phansi kwethangi elijiya i-sulfide yensimbi ibuyisele ku-reactor yensimbi ye-sulfide. Enye ingxenye yemvula engezansi ithunyelwa emshinini wokuhlunga we-plate-and-frame ukuze igxiliswe ku-metal sulfide concentrate.

Izinzuzo zendlela yokubuyisela izinsimbi ezibalulekile emanzini ane-asidi usebenzisa i-sodium hydrosulfide zimi kanje:

Ukuthola ngokuqondile izinsimbi ezibalulekile emanzini angcolile ane-asidi akhiqizwa izimayini kubiza cishe uhhafu wezindlela ezivamile zokucubungula amaminerali. Izinga lama-sulfide ensimbi abalulekile atholiwe cishe liphindwe kabili kunelezindlela zokucubungula izimbiwa ezivamile, nezinga eliphezulu lokululama kanye nezinzuzo ezibalulekile zezomnotho. Amanzi angcolile ngemva kokuthola kabusha aqukethe ama-ion ensimbi esindayo ambalwa, okuholela ezindlekweni eziphansi zokuhlanza amanzi angcolile kanye nezinzuzo ezinhle zemvelo