Sand gold ore beneficiation methods are mainly the following: screening, disintegrated, re-election, purification and smelting.
1. Screening: This method mainly uses vibrating screen or drum screen. The principle is similar. The vibrating screen has the advantages of strong processing capacity and long service life. The drum screen has the advantages of thorough screening and good screening effect. Grades of minerals choose different types of equipment, and sand gold mines with large processing capacity are generally required to use a vibrating screen to screen the ore.
2. Disintegration: The gold ore beneficiation method basically never uses the crushing method and equipment. The so-called disintegration mainly refers to the disintegration of the mud mass which is formed by the large mud content, so that the gold wrapped in the mud mass It can be dissociated and the recovery rate of the gold selection process can be improved. For sand mines with little or no mud, no disintegration process is required. The disintegration of the gold deposit is generally completed by adding water to the screening equipment . For the sand gold mine with more mud and viscosity, the washing machine can be used to wash the excess soil.
3. Re-election: The rough selection of gold in the gold deposits is generally carried out by means of re-election. The equipment used includes chutes and jigs. For the very low content of gold ore beneficiation, it is generally necessary to pass the chute rough selection, throw away most of the waste sand, and the chute concentrate is then entered into the jig for sorting to obtain a coarse concentrate with a high gold content. The rough selection of the chute and the selection of the jig are to improve the beneficiation efficiency and ensure the recovery rate and beneficiation efficiency. The purification of gold ore can be re-elected or amalgamated . Currently, the application of mercury amalgamation is more common. The forced amalgamation cylinder is used to purify the gold concentrate in the re-selected gold concentrate produced by the jig, and the tailings can be thrown away. The gold is extracted and its recovery rate is higher than 95%.
The above is the explanation of the grade and mining method of gold gold mine, more sand gold mine and gold machinery knowledge, please continue to pay attention to Qingzhou Yongchen Sand Mine Machinery Co., Ltd.
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