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　　混汞(gong)機(ji)內(nei)精選(xuan)出的物料可以通過汞(gong)膏分離器進行分選(xuan)后，加入蒸汞(gong)器內(nei)進行提純。

[混汞(gong)選金原(yuan)理]

　　混汞(gong)(gong)(gong)選金(jin)(jin)過程的(de)實質是單體解離的(de)金(jin)(jin)粒(li)(li)(li)(li)與汞(gong)(gong)(gong)接(jie)觸后(hou)，金(jin)(jin)屬汞(gong)(gong)(gong)排除金(jin)(jin)粒(li)(li)(li)(li)表(biao)(biao)面(mian)的(de)水(shui)(shui)化層迅速潤(run)濕金(jin)(jin)粒(li)(li)(li)(li)表(biao)(biao)面(mian)，然后(hou)金(jin)(jin)屬汞(gong)(gong)(gong)向金(jin)(jin)粒(li)(li)(li)(li)內部擴(kuo)散形成(cheng)金(jin)(jin)汞(gong)(gong)(gong)齊——汞(gong)(gong)(gong)膏。金(jin)(jin)屬汞(gong)(gong)(gong)排除金(jin)(jin)粒(li)(li)(li)(li)表(biao)(biao)面(mian)水(shui)(shui)化層的(de)趨勢愈(yu)大，進(jin)行(xing)速度愈(yu)快，金(jin)(jin)粒(li)(li)(li)(li)則愈(yu)易被汞(gong)(gong)(gong)潤(run)濕和被汞(gong)(gong)(gong)捕捉，金(jin)(jin)的(de)回(hui)收(shou)率愈(yu)高。因此，金(jin)(jin)粒(li)(li)(li)(li)汞(gong)(gong)(gong)齊化的(de)首(shou)要條件是金(jin)(jin)粒(li)(li)(li)(li)與汞(gong)(gong)(gong)接(jie)觸時汞(gong)(gong)(gong)能潤(run)濕金(jin)(jin)粒(li)(li)(li)(li)表(biao)(biao)面(mian)，進(jin)而捕捉金(jin)(jin)粒(li)(li)(li)(li)。因此，汞(gong)(gong)(gong)對(dui)金(jin)(jin)的(de)浸潤(run)作用(yong)，是在水(shui)(shui)介質中進(jin)行(xing)的(de)，由于(yu)單體金(jin)(jin)粒(li)(li)(li)(li)表(biao)(biao)面(mian)及金(jin)(jin)屬汞(gong)(gong)(gong)表(biao)(biao)面(mian)均疏水(shui)(shui)，金(jin)(jin)水(shui)(shui)界(jie)面(mian)及汞(gong)(gong)(gong)水(shui)(shui)界(jie)面(mian)的(de)表(biao)(biao)面(mian)張(zhang)(zhang)力大，而金(jin)(jin)粒(li)(li)(li)(li)及金(jin)(jin)屬汞(gong)(gong)(gong)內部均為(wei)金(jin)(jin)屬晶格，密度較(jiao)大。根據相(xiang)似相(xiang)溶原理，金(jin)(jin)粒(li)(li)(li)(li)與汞(gong)(gong)(gong)均為(wei)金(jin)(jin)屬，性質較(jiao)相(xiang)似，金(jin)(jin)-汞(gong)(gong)(gong)界(jie)面(mian)的(de)表(biao)(biao)面(mian)張(zhang)(zhang)力很(hen)小。

　　因(yin)此，金(jin)(jin)(jin)-水界(jie)面(mian)的(de)(de)(de)(de)表(biao)(biao)面(mian)張(zhang)力(li)與汞(gong)(gong)(gong)(gong)-水界(jie)面(mian)的(de)(de)(de)(de)表(biao)(biao)面(mian)張(zhang)力(li)愈接近(jin)，可(ke)混(hun)汞(gong)(gong)(gong)(gong)指標(biao)(biao)(biao)H愈接近(jin)于1，金(jin)(jin)(jin)粒(li)(li)愈易被汞(gong)(gong)(gong)(gong)潤(run)濕而汞(gong)(gong)(gong)(gong)齊(qi)化。相反，金(jin)(jin)(jin)屬(shu)汞(gong)(gong)(gong)(gong)對礦粒(li)(li)表(biao)(biao)面(mian)的(de)(de)(de)(de)潤(run)濕接觸角愈大(da)，其(qi)可(ke)混(hun)汞(gong)(gong)(gong)(gong)指標(biao)(biao)(biao)愈小，其(qi)表(biao)(biao)面(mian)不(bu)易被汞(gong)(gong)(gong)(gong)潤(run)濕和汞(gong)(gong)(gong)(gong)齊(qi)化。因(yin)此，混(hun)汞(gong)(gong)(gong)(gong)過程中采用任何能(neng)提高(gao)(gao)金(jin)(jin)(jin)-水界(jie)面(mian)及汞(gong)(gong)(gong)(gong)-水界(jie)面(mian)表(biao)(biao)面(mian)能(neng)（表(biao)(biao)面(mian)張(zhang)力(li)）和能(neng)降(jiang)低金(jin)(jin)(jin)-汞(gong)(gong)(gong)(gong)界(jie)面(mian)表(biao)(biao)面(mian)能(neng)的(de)(de)(de)(de)措施均可(ke)提高(gao)(gao)金(jin)(jin)(jin)粒(li)(li)表(biao)(biao)面(mian)的(de)(de)(de)(de)可(ke)混(hun)汞(gong)(gong)(gong)(gong)指標(biao)(biao)(biao)，有(you)利于金(jin)(jin)(jin)粒(li)(li)汞(gong)(gong)(gong)(gong)齊(qi)化和提高(gao)(gao)混(hun)汞(gong)(gong)(gong)(gong)過程中金(jin)(jin)(jin)的(de)(de)(de)(de)回(hui)收率。

【技術參數及(ji)報價】