Awọn ilana Ilọ Gold Ore Meta ti o wọpọ

ni awọn Ilana Leaching ti awọn ohun elo, ti o da lori awọn iyatọ ninu awọn itọnisọna ṣiṣan ti awọn ohun elo ti a fiwe ati awọn reagents leaching, awọn ilana fifun mẹta le ṣe idanimọ.

1. Co-lọwọlọwọ Leaching

Ni co - lọwọlọwọ leaching, awọn ohun elo leached ati leaching reagents ṣàn ni kanna itọsọna (Figure 1). Ọna yii le ṣe agbejade leachate pẹlu akoonu ti o ga julọ ti awọn paati ibi-afẹde ati nilo lilo kekere ti awọn reagents leaching. Sibẹsibẹ, iyara leaching rẹ lọra. A nilo akoko mimu gigun to gun lati ṣaṣeyọri oṣuwọn iyẹfun giga kan.

2. Agbelebu - lọwọlọwọ Leaching

Ni agbelebu - leaching lọwọlọwọ, awọn ohun elo leached ti wa ni lọtọ leached pẹlu orisirisi awọn ipin ti alabapade leaching reagents. Awọn leachate ti o gba lati inu iṣẹ mimu kọọkan ni a firanṣẹ ni iṣọkan fun sisẹ atẹle (Nọmba 2). Cross - lọwọlọwọ leaching ẹya kan jo sare leaching iyara ati ki o kan kukuru leaching akoko, Abajade ni a ga leaching oṣuwọn. Sibẹsibẹ, iwọn didun leachate jẹ nla, pẹlu ifọkansi giga ti awọn reagents to ku. Bi abajade, lilo awọn reagents jẹ idaran, ati akoonu ti awọn paati ibi-afẹde ninu leachate jẹ kekere.

3. Counter - lọwọlọwọ Leaching

Ni counter - leaching lọwọlọwọ, awọn ohun elo leached ati awọn reagents leaching gbe ni awọn itọnisọna idakeji. Iyẹn ni, awọn ohun elo ti o dinku lẹhin ọpọlọpọ awọn iṣẹ iṣiṣẹ leaching wa sinu olubasọrọ pẹlu leachate tuntun, lakoko ti awọn ohun elo leached atilẹba kan si leachate (Nọmba 3). Counter - leaching lọwọlọwọ le ṣe agbejade leachate pẹlu akoonu giga ti awọn paati ibi-afẹde ati lo ni kikun ti awọn reagents to ku ninu leachate, nitorinaa idinku agbara awọn aṣoju leaching. Sibẹsibẹ, iyara leaching rẹ kere ju ti agbelebu - leaching lọwọlọwọ. Nọmba ti o tobi ju ti awọn ipele leaching ni a nilo lati gba oṣuwọn leaching giga kan.

Percolation ojò leaching le gba àjọ - lọwọlọwọ, agbelebu - lọwọlọwọ, tabi counter - lọwọlọwọ leaching lakọkọ. Okiti leaching ati ni-situ leaching gbogbo gba awọn àjọ - lọwọlọwọ cyclic ilana leaching. Leaching aruwo ti o tẹsiwaju nigbagbogbo gba ilana ilana mimu lọwọlọwọ. Ti o ba ti agbelebu - lọwọlọwọ tabi counter - lọwọlọwọ leaching ni lati ṣee lo, ri to - omi Iyapa mosi yẹ ki o wa ni afikun laarin kọọkan ipele. Batch - ṣiṣẹ rú leaching ni gbogbo co - lọwọlọwọ leaching, ṣugbọn agbelebu - lọwọlọwọ tabi counter - lọwọlọwọ leaching tun le ṣee lo. Bibẹẹkọ, ipinya olomi to lagbara ni a nilo lẹhin iṣẹ iṣiṣẹ kọọkan, ṣiṣe eka iṣiṣẹ ati pe o kere si lilo ni iṣelọpọ. Percolation leaching le taara gba ko o leachate, nigba ti slurry lati rú leaching gbọdọ faragba ri to - omi Iyapa lati gba ko o leachate tabi dilute slurry ti o ni awọn kan kekere iye ti irin patikulu fun tetele processing.