The principle of Alluvial Gold mining beneficiation is to maximize the recovery rate of gold and the associated heavy minerals from gangues firstly, and then separate gold from the associated heavy minerals by joint mining solutions such as gravity separation, flotation, amalgamation, magnetic separation and electrostatic separation.
Alluvial gold processing solution mainly applies for processing alluvial gold with large volume of gangue minerals. Alluvial gold processing is a set of mining process including crushing and screening, desliming stage, separating stage, etc.
Many alluvial gold ores contain cementing mud pie and most of its particle size is over 100 mm, which will be excluded together with waste rock in the process of screening if not being crushed, thus is a loss of gold Vibrating screen and trommel are the commonly used screening equipment, which has long service life and high processing capacity.
Material less than 0.1mm almost don not contain gold in alluvial gold ore, which is known as floating gold and is difficult to be recovered in the seperating process. Moreover, the gold and sludge will be confused in the seperating process, particularly in mechanical seperating process. Therefore, in alluvial gold mining process, this kind of sludge mainly be eliminated. Popular Desliming equipment is off-the-mud bucket.
Practice has proved that gravity separation is the most effective and economical alluvial gold processing method. Due to the different size distributed among alluvial gold, different alluvial gold processing equipment has various of effective size limitations, so a reasonable alluvial gold separating process should apply several gravity separation equipment to jointly operate.
Xinhai Jig tapered slide valve, which has lower failure rate of 80%, lower energy consumption and can meet different separating process, increase processing capacity by more than 35%. And its also characterized by easy operation of stroke and frequency with the use of high-tech; smaller covering space while larger handling capacity per unit area.
Xinhai improved the traditional 6s concentrating table, bed-type cam lever to change the slider position on the rocker arm can adjust stroke, the leather belt of smooth motor is to adjust jig frequency. Advantages: easy stroke adjustment; smoothly bed running; compact structure; lower power consumption.
This process characterized by simple process, lower cost in equipment, easy operation, What is more, the mining process is environmental protection, the tailings can be directly discharged, which greatly reduce the overall processing plant cost in civil engineering.
The latest CIL Plant Xinhai has constructed locates in Tanzania, Xinhai brought up a satisfying 1200tpd project with the mine owner from Tanzania Bulsowa Mining Co., Ltd.