Equipment appearance varies by model and configuration.
Grinding & beneficiation
Spiral chute
BLL
Slurry flows down a spiral trough, separating particles by density. Feed size, density and spiral geometry guide configuration.
- Process duty
- Gravity separation
- Available information
- Models, applications & selection inputs
Applications
- Gravity circuits
- Mineral concentration
- Fine-particle separation
Information for selection
- Mineralogy, test results and target grade
- Feed size, slurry density and throughput
- Recovery requirements and downstream dewatering
Equipment selection
Models & technical specifications
Specifications are for selection reference. Capacity varies with material and duty; confirm the final configuration for your project. Wide tables scroll horizontally.
Models & reference specifications
| Model / configuration | Outside Diameter (mm) | Screw Pitch (mm) | Pitch Diameter Ratio | Lateral Dip Angle | Max. Screw Numbers | Feed Size (mm) | Feed Density (%) | Capacity (t/h) | Length (mm) | Width (mm) |
|---|---|---|---|---|---|---|---|---|---|---|
| BLL-2000 | 2000 | 1200 | 0.6 | 9° | 4-2 | 2.00-0.04 | 30-56 | 7-10 | 2120 | 2120 |
| BLL-1500 | 1500 | 900, 675 | 0.48, 0.36 | 9° | 4-2 | 0.8-0.037 | 30-56 | 6-8 | 1600 | 1600 |
| BLL-1200 | 1200 | 900, 720, 540 | 0.75, 0.6, 0.45 | 9° | 4-2 | 0.3-0.03 | 25-55 | 4-6 | 1300 | 1360 |
| BLL-900 | 900 | 675, 540, 405 | 0.75, 0.6, 0.45 | 9° | 4-2 | 0.3-0.03 | 25-55 | 2-3 | 1060 | 1060 |
Confirm the unit of any parameter without a stated unit before using it for selection.
Source: product catalogue, PDF page 36