Alluvial tin ore beneficiation process is relatively simple, generally through simple screening, re-election can obtain good beneficiation indexes, but for the single dissociation degree of low alluvial tin ore beneficiation, in addition to screening and re-election need to increase the grinding and secondary re-election and tailings recovery process, in order to ensure that the grade of the concentrate and the recovery rate of the entire process.

    Alluvial tin ore beneficiation process process is designed according to the single dissociation degree of alluvial tin ore design, the use of loaders will be given to the original alluvial ore into the trommel screen feeding device, after the trommel screen screening effect, will be a large piece of non-tin waste rock thrown away, the remaining alluvial ore into the jigger for sorting, the first section of the jigger re-election is mainly aimed at recovering all of the alluvial tin minerals, need to ensure that a high reelection recovery and does not lie in the improvement of concentrate grade Therefore, this section of re-election should be used to handle large capacity, high recovery rate jigger, jigger produced by the coarse concentrate into the rod mill grinding, breaking the coarse concentrate in the presence of tin minerals in the structure of the hyphae, tailings directly discarded. Rod mill is a kind of high efficient fine grinding equipment, which can grind the minerals to fine sand without over-grinding phenomenon, and reduce the loss of tin minerals in the re-election process caused by over-grinding in the grinding process. Rod mill grinding products into the second section of the jig for secondary re-election, the purpose of the process is to improve the concentrate grade, because the rod mill discharge particle size is small, the second section of the jig concentrator using fine grained re-election sawtooth wave jigger, to improve the grade of the concentrate and ensure the highest recovery rate. The concentrate produced by the jigger can be used as the final product, and the tailings enter the shaking table for secondary re-election to recover the fine-grained tin minerals in the tailings of the jigger, with the main purpose of improving the recovery rate of the whole process. The concentrate from the shaking table and the jigger concentrate converge into the concentrate pool, and the tailings are directly discarded.

    For the sand tin ore beneficiation with high degree of monomer dissociation, generally do not need too complicated process, only need to go through the drum sieve screening, jig reelection can get good sorting indexes, do not need to add rod mill, shaking table and other equipment, small investment, low operating costs.