A system extracts gold from pregnant solution by zinc powder.Production capacity≤1200m3/d.Product ConstitutionZinc powder displacement process is composed of pregnant solution purifiion deoxidation and zinc powder filtering replacement.
Zinc powder displacement Process has 3 steps including pregnant Process purifiion deoxidation and zinc powder filtering replacement.
1．Pregnant Process purifiion.
PrincipleGold pregnant Process often contains suspended solids which should be removed before replacement. Pregnant Process purifiion is the Process to remove suspended solid.EquipmentFrame press filter.
2．DeoxidationWork Principle Dissolved oxygen in pregnant Process hinders displacement of zinc and gold.EquipmentDeoxidation tower.
3．Displacement and filteringWork principle Including 2 steps adding zinc powder and displacement when adding the zinc into pregnant Process the displacement action starts. The displacement equipment finishes the displacement and gold mud filtration.Equipment Zinc powder adding Belt type zinc powder feeder Disc type powder feeder Zinc powder mixer.
The device is mainly aimed at gold ore containing silver. After purifiion and deoxidation zinc powder displacement device is added and finally the gold mud is obtained.
Yantai, Shandong, China