The Gold ore beneficiation plant is designed by sinonine , with a design capacity of 450tpd and an actual capacity of 500tpd. At the early stage of actual running, the plant adopted flotation method to produce gold concentrate, and later we designed a CIP plant of the same scale. The final product is gold bullion
The gold ore is of the middle temperature hydrothermal fracture filled with quartz vein composite gold , most of the natural gold and metal minerals symbiosis, in which limonite gold accounts for the most. Ore density 2.51t/m³.
Gold concentrate was originally produced by a single flotation process. Due to the symbiosis between natural gold and metal oxidized minerals, the recovery rate of gold by flotation is only 73-75%. So technical modification was carried out, and a new process of CIP method of direct cyanidation of raw ore was adopted. The process shown in figure 1
Figure1.Gold ore beneficiation process
Gold CIP process is widely used, because it can save investment in infrastructure, and costs are also slightly reduced, so it has been widely used in the world. The gold beneficiation plant is a large scale gold CIP plant, with advanced technology and high automation level, and equipments and configuration are innovative, such as high efficiency thickner, new type leaching stirred tank, automatic detection device. This process adopts activated carbon to adsorb gold and replaces the traditional method of solid-liquid separation by washing. It is more advantageous to oxidized ore with a lot of mud or to gold ore with difficult solid-liquid separation and low washing rate, and is of special significance to gold ore in cold regions and in limit construction sites. After the plant is completed, the gold recovery rate can reach 90%. See table 1 for the process index and table 2 for the unit consumption index.
Table1. Technical index
Grade of raw ore
Grade of Gold Concentrate
Gold recovery rate by flotation
Cyanide leaching rate
Total gold recovery rate by cyanidation
Table 2 .Consumption index
The production line is equipped with reasonable equipment according to the design process. The equipment is installed smoothly and runs well. The main equipment is shown in table 3.
Table 3. main equipments list