Gravity separation test of scheelite tailings

Gravity separation test of scheelite tailings

White tungsten tailings are one of the main products of tungsten ore, which is a waste containing tungsten and is usually regarded as a pollutant. However, scheelite tailings also contain other useful minerals, so re dressing scheelite tailings is a very valuable attempt. In this article, we will introduce the steps and methods of the scheelite tailings gravity separation test.

1、 Preparation before testing

Before conducting the scheelite tailings re selection test, some preparatory work needs to be carried out. Firstly, chemical analysis of scheelite tailings is required to determine their composition and content. Secondly, it is necessary to grind the scheelite tailings to obtain appropriate particle size. Finally, it is necessary to prepare experimental equipment, including gravity separators, magnetic separators, flotation machines, etc.

2、 Reselection test steps

1. Rough selection stage: After grinding the scheelite tailings, they are sent to a gravity separator for rough selection. In the coarse selection stage, by adjusting the vibration frequency and amplitude of the gravity separator, particles are sorted according to density, thus achieving preliminary screening of scheelite tailings.

2. Intermediate selection stage: The scheelite tailings after rough selection are sent to the intermediate selection machine for intermediate selection. The selection machine adjusts the water flow speed and slope to separate particles according to density and shape, thereby obtaining a purer scheelite tailings.

3. Selection stage: The selected scheelite tailings are sent to the flotation machine for selection. In the flotation machine, the useful minerals in scheelite tailings rise together with the foam by adding reagents and bubbles, so as to realize the final screening of scheelite tailings.

4. Magnetic separation stage: The selected scheelite tailings are fed into a magnetic separator for magnetic separation. In the magnetic separator, by adjusting the magnetic field strength and the type of magnetic material, the magnetic minerals in the scheelite tailings are adsorbed, thereby obtaining a purer scheelite tailings.

3、 Analysis of test results

After the above steps, we obtained the scheelite tailings after re selection. We can conduct chemical analysis and physical property testing on the re selected scheelite tailings to determine their composition and properties. Through the analysis of the experimental results, we can draw the following conclusions:

1. The scheelite tailings after re selection contain higher tungsten content.

The impurity content in the scheelite tailings after re selection is greatly reduced.

3. The particle size of the scheelite tailings after re selection is more uniform.

IV. Conclusion

By conducting gravity separation experiments on scheelite tailings, we can obtain purer and higher quality scheelite tailings. This technology can be widely applied in the mining and processing process of tungsten ore, thereby improving the mining efficiency and economic benefits of tungsten ore. At the same time, this technology also helps to reduce the environmental pollution caused by scheelite tailings and achieve sustainable utilization of resources.

Gravity separation test of scheelite tailings