10TPH Alluvial Tungsten-Tin Ore Beneficiation Plant In Tanzania

The raw ore mined by customers will not contain large pieces, so there is no need for crushing or other pre-selection treatment. In order to extract and recycle tungsten and tin minerals more efficiently and accurately, JXSC will adopt a series of scientific and reasonable process flows, mainly including washing and re-selection.

1.Washing stage: trommel screen

The raw materials are fed into the drum screen by the excavator to wash away the clay and screen out the oversized waste rocks. The drum screen feed port is equipped with a grid with a gap of 75mm, which can screen out large waste rocks over 75mm. It also has two layers of 2mm and 15mm screens, which can screen materials of 0-2mm, 2-15mm, and +15mm. The trommel screen rolls the ore in the screen drum through its own rotational motion. Fine-grained ore smaller than the size of the screen hole will fall through the screen hole, while coarse-grained ore larger than the size of the screen hole will be discharged from the other end of the screen drum. Among them, materials larger than 15mm are waste rocks and are discharged.

2. Gravity separation stage: jig concentrator, shaking table

• The 0-2mm slurry screened out by the drum automatically flows to one of the jig concentrators under the action of gravity, initially enriching tungsten and tin ores and greatly removing gangue minerals. In the jig, by periodically changing the water flow speed and direction, the tungsten and tin ore particles, due to their relatively large density, will gradually settle to the bottom of the jig under the action of the water flow to form heavy products; while the gangue minerals with lower density are brought to the upper layer with the rising water flow and discharged as light products. The concentrate is discharged from the bottom of the jig screen. Then it enters the shaking table for concentrating to improve the ore grade and obtain 0-2mm tin concentrate.
• The 2-15mm material screened out by the drum enters another jig, and the concentrate is discharged from above the jig screen to obtain 2-15mm tungsten concentrate.