Sand tin ore beneficiation process is relatively simple, generally by a simple sieving reselection to get a good metallurgical performance, but the lower dissociation degree of the monomers of tin mineral sands, in addition to further screening is necessary to increase reselection Grinding and secondary re-election and tailings recovery processes to ensure the concentrate grade and recovery rate of the entire process.
The process of sand-sand ore dressing process is based on the design of sand-sand mine with low monomer dissociation degree. Firstly, the original sand mine is fed into the feeding device of the drum screen by the loader, and the large-sized block is applied through the screening of the drum screen. The waste stone without tin is thrown away, and the remaining sand mine enters the jig for sorting. The main purpose of the first jig re-election is to recover all the sand-sand minerals. The highest re-election rate is guaranteed instead of improving. Concentrate grade, therefore, the re-election of this section should adopt the 2LTC-6109/8T trapezoidal jig with high processing capacity and high recovery rate. The coarse concentrate produced by the jig enters the rod mill to grind and break the continuous body in the coarse concentrate. The tin minerals in the structure exist, and the tailings are directly discarded. The rod mill is an efficient and fine crushing device that grinds minerals into fine sand without over-grinding, reducing the loss of re-sorting process due to over-grinding of tin minerals during grinding. The rod mill grinding product enters the second-stage jig for secondary re-election. The purpose of the process is to improve the concentrate grade. Because the rod mill has a smaller particle size, the second-stage jigging is fine-grained re-saw. Wave jigs improve concentrate quality and guarantee the highest recovery rate. The concentrate produced by the jig can be used as the final product. The tailings enter the shaker for re-election to recover the fine-grained tin minerals in the tailings of the jig. The main purpose is to improve the recovery rate of the whole process. The concentrate of the shaker merges with the jig concentrate to enter the concentrate pool, and the tailings are directly discarded.
For sand ore beneficiation with higher monomer dissociation degree, generally no complicated process is needed. It only needs to be sieved through the drum sieve, and the jig can be re-elected to obtain good sorting index without adding a rod mill. Machines, shakers and other equipment, small investment, low operating costs.
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