Njira Zitatu Zodziwika za Gold Ore Leaching

Mu Leaching Process za zipangizo, kutengera kusiyana kwa otaya malangizo a leached zipangizo ndi leaching reagents, atatu leaching njira akhoza kudziwika.

1. Co-current Leaching

Mu co-leaching panopa, zipangizo leached ndi leaching reagents amayenda mbali imodzi (Chithunzi 1). Njirayi imatha kutulutsa leachate yokhala ndi zinthu zambiri zomwe zikufunika ndipo zimafuna kutsika kwa ma reagents a leaching. Komabe, liwiro lake leaching ndi pang'onopang'ono. Kutenga nthawi yayitali kumafunika kuti mukwaniritse kuchuluka kwa leaching.

2. Cross - panopa Leaching

Pakuwotcha kwaposachedwa, zida zodulidwira zimayikidwa padera ndi magawo angapo a ma reagents atsopano. Leachate yomwe imapezeka pa ntchito iliyonse ya leaching imatumizidwa mofanana kuti ikakonzedwenso (Chithunzi 2). Cross - leaching panopa imakhala ndi liwiro lothamanga kwambiri komanso nthawi yayifupi yotulutsa, zomwe zimapangitsa kuti pakhale kutsika kwakukulu. Komabe, kuchuluka kwa leachate ndi kwakukulu, komwe kumakhala ndi ma reagents otsalira. Chotsatira chake, kumwa kwa reagents ndi kwakukulu, ndipo zomwe zili m'magulu omwe akukhudzidwa mu leachate ndizochepa.

3. Kauntala - Leaching panopa

Potsutsana - kutulutsa kwaposachedwa, zida zokhometsedwa ndi ma reagents otulutsa zimasunthira mbali zosiyana. Izi zikutanthauza kuti, zinthu zomwe zatha pambuyo pochita ma leaching angapo zimakumana ndi leachate yatsopano, pomwe zida zoyambilira zimalumikizana ndi leachate (Chithunzi 3). Counter - leaching panopa akhoza kutulutsa leachate ndi mkulu zili mu chandamale zigawo zikuluzikulu ndi ntchito mokwanira reagents otsalira mu leachate, motero kuchepetsa kumwa leaching agents. Komabe, liwiro lake leaching ndi lotsika kuposa la cross - current leaching. Magawo ochulukirapo a leaching amafunikira kuti apeze chiwopsezo chachikulu.

Percolation tank leaching imatha kutengera njira zapano, zodutsa - zaposachedwa, kapena zotsutsana - zomwe zikuchitika. Heap leaching and in-situ leaching nthawi zambiri amagwiritsa ntchito njira yapano ya cyclic leaching. Leaching mosalekeza nthawi zambiri imatenga njira yolumikizirana. Ngati pati pagwiritsidwe ntchito panjira yodutsana kapena yapountala, zitsulo zolimba zolekanitsa madzi ziyenera kuwonjezedwa pakati pa gawo lililonse. Leaching yoyendetsedwa ndi batch nthawi zambiri imakhala yolumikizirana, koma kupatsirana kwapakali pano kapena kauntala - kutha kugwiritsidwanso ntchito. Komabe, kupatukana kolimba - kwamadzimadzi kumafunika pakatha ntchito iliyonse ya leaching, kupangitsa kuti ntchitoyi ikhale yovuta komanso yosagwiritsidwa ntchito kwambiri popanga. Percolation leaching imatha kupeza leachate yowoneka bwino, pomwe slurry kuchokera ku leaching yowumbidwa iyenera kukhala yolimba - kulekanitsidwa kwamadzimadzi kuti mupeze leachate yowoneka bwino kapena kusungunula slurry wokhala ndi tinthu tating'ono tomwe titha kukonzanso.