Evidence status: Reference case prepared from user-supplied project notes. Keep noindex until source evidence, project permission and product data are confirmed.
Project positioning
This reference is useful for explaining the difference between tin-tungsten alluvial ore and tin-tungsten rock ore. The supplied notes describe a small alluvial route with little clay and no need for crushing or preconcentration.
For rock-type tin or tungsten ore, the route would normally require crushing, grinding and tighter classification before gravity recovery.
Known project facts
- Mineral: tungsten-tin ore
- Location: Tanzania
- Nominal capacity: 10 TPH
- Ore condition: little clay in the supplied notes
- Maximum feed size: 150 mm
- Target output size: 0-2 mm
- Route: washing and gravity separation
Process route
The supplied classification logic was:
- Use a 75 mm grizzly to reject large waste rock.
- Use trommel screening to split 0-2 mm, 2-15 mm and above 15 mm fractions.
- Send 0-2 mm material to jig roughing and shaking table cleaning.
- Send 2-15 mm material to another jig duty for tungsten concentrate recovery.
Equipment scope
The supplied notes listed GT0813 trommel screen, JT2-2 jig concentrator, 4500 shaking table and 3 inch water pump.
Quotation and design lessons
Tin-tungsten projects should never be quoted before confirming whether the ore is alluvial or hard rock. Alluvial ore often centers on washing, classification, jigging and table cleaning. Hard-rock ore usually adds crushing, grinding, classification and sometimes magnetic separation depending on mineral association.
Publication status
No grade upgrade, recovery percentage or product quality is published here. Those details should be added only when supported by assay data, sampling method and customer approval.