Gravity beneficiation test of sand tin tailings

Sand tin tailings refer to tailings containing various metal elements such as tin, iron, copper, lead, zinc, etc. that are separated by physical or chemical methods during the tin ore beneficiation process. Due to its high content of valuable metal elements, it has high value in resource utilization. However, due to its complex composition and low grade characteristics, effective mineral processing has always been a challenge. This article will introduce a beneficiation test method for sand tin tailings based on the principle of gravity beneficiation.

1. Experimental Principles

Gravity beneficiation is a beneficiation method that uses gravity as the main separation principle. The basic principle is to settle or float minerals of different densities and sizes under the action of gravity field, based on the differences in mineral density and size, in order to achieve the purpose of sorting. In the beneficiation of sand tin tailings, gravity beneficiation can separate minerals with different densities, thereby improving the grade and recovery rate of the ore.

2、 Test process

1. Sample preparation

Take a certain amount of sample from the sand tin tailings, and after processing with coarse crushing, fine crushing, screening, etc., obtain a sample with a certain particle size range.

2. Re-selection test

Put the sample into the gravity concentration equipment, adjust the parameters of the equipment according to the density difference of minerals in the sample, so that minerals with different densities can be separated. After the re selection experiment, collect the sorted minerals and measure their grade and recovery rate.

3. Process optimization

Based on the experimental results, optimize the process, adjust equipment parameters and process flow, and further improve the beneficiation effect.

4. Intermediate Test Certificate

In actual production, ongoing testing is conducted to verify the reliability and applicability of the test results.

3、 Test results

Through gravity beneficiation experiments, different density minerals in sand tin tailings can be effectively separated, improving the ore grade and recovery rate. The experimental results indicate that this method has high beneficiation efficiency and feasibility.

4、 Conclusion

The gravity beneficiation test of sand tin tailings is an effective beneficiation method that can improve the grade and recovery rate of the ore, and has high application value. In actual production, optimization and improvement should be carried out based on the actual situation to further improve the beneficiation effect.