Tin ore gravity separation+flotation+gravity separation process

Suitable for ores with coarser particle size embedded in cassiterite. The first re selection can directly obtain coarse-grained concentrate products. Subsequent flotation is mainly used to remove sulfide ores or recover tin minerals through flotation. The second re selection is used to recover some finer tin minerals, improving the overall recovery rate.

Tin ore re selection+flotation+re selection process flow

1.Raw ore crushing：Crush the tin ore raw ore to a certain particle size to prepare for subsequent grinding and re selection.

2.Grinding：Grinding the crushed raw ore to achieve appropriate fineness and provide conditions for re selection.

3.First re-election：

Jig sorting：Coarse grade ore is sorted by gravity through a jig, directly obtaining coarse-grained concentrate products.

Shaker sorting：Fine grained ore is subjected to finer gravity sorting through a shaker to obtain a purer cassiterite concentrate.

4.Flotation：Flotation is carried out on the coarse-grained concentrate or shaker concentrate obtained from the first re selection, and appropriate reagents (such as yellow medicine, black medicine, etc.) are used to separate cassiterite and other minerals. This step is mainly used for the removal of sulfide ore or flotation recovery of tin minerals.

5.Second re-election：Perform a second re selection of the flotation concentrate, such as using a jigger or shaker, to recover some of the finer tin minerals.

6.Concentrate Treatment：The concentrate obtained from the second re selection is processed through concentration, drying, and other processes to obtain the final tin concentrate product.

Technological advantages

Efficient Separation：Through the first re selection, coarse-grained concentrate products can be directly obtained. Subsequent flotation is mainly used to remove sulfide ores or recover tin minerals through flotation. The second re selection is used to recover some finer tin minerals, achieving efficient separation and improving recovery rates.

Resource recovery：This process can recover a large amount of cassiterite resources and further enrich fine-grained tin minerals through flotation, improving resource utilization efficiency.

Improve product quality：By combining re selection and flotation, high-quality concentrate products can be obtained, which is beneficial for subsequent smelting and processing processes.

Flexible Adaptation：According to the different properties of the ore and the target product, the process flow can be flexibly adjusted to achieve the best beneficiation effect.

5.Energy saving and environmental protection：The re selection process has relatively low energy consumption, and the flotation process can also achieve energy-saving goals. At the same time, this process reduces the generation of tailings, which is beneficial for environmental protection.

The tin ore gravity separation+flotation+gravity separation process is an efficient, energy-saving, and environmentally friendly beneficiation method that can achieve high recovery rates of tin ore resources and the production of high-quality products.

Typical beneficiation plant

Huichang Jinlong Tin Mine Dressing Plant: The metal minerals of the ore mainly include cassiterite, chalcopyrite, and pyrite, while the non-metallic minerals mainly include quartz, fluorite, sericite, etc.