Efficient Fine Mineral Recovery
The combined effects of gravity, centrifugal force and slurry flow promote particle stratification by density within the spiral channel, enabling efficient separation and recovery of fine heavy-mineral particles.
The FRP Spiral Separator is a continuous gravity separation unit designed for the classification and concentration of fine mineral particles. It is commonly used in roughing and pre-concentration stages, providing an efficient, power-free solution for recovering valuable heavy minerals before downstream cleaning or upgrading.
By reducing the amount of material reporting to subsequent separation stages, the spiral separator helps lower downstream processing loads while maintaining stable operation and low operating costs, improving the overall efficiency of the beneficiation circuit.
It is widely used for the recovery and concentration of chromite, cassiterite, wolframite, tantalum-niobium minerals, alluvial gold, coal, monazite, rutile, zircon, and other metallic and non-metallic minerals.
In gravity separation processes, fine particle recovery is often limited by insufficient sensitivity of conventional equipment and the high operating cost of mechanically driven systems. These challenges can result in lower recovery rates and unstable downstream performance.
The spiral seprator addresses this by utilizing the combined effects of gravity, centrifugal force, and slurry flow to gradually stratify and separate particles based on density. This process operates continuously without external power, making it inherently stable and energy-efficient.
Its core value lies in providing effective pre-concentration of heavy minerals while minimizing operating cost and system complexity. By reducing the load on downstream processes such as flotation or magnetic separation, the spiral chute improves overall plant efficiency and process stability.
FAQ for Spiral Separator
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| Model | 5LL-2000 | 5LL-1500 | 5LL-1200 | 5LL-900 | 5LL-600 | 5LL-400 |
|---|---|---|---|---|---|---|
| Outside Dia (mm) | 2000 | 1500 | 1200 | 900 | 600 | 400 |
| Pitch (mm) | 1200 | 900, 675 | 900, 720, 540 | 675, 540, 405 | 450, 360, 270 | 240, 180 |
| Pitch Dia Ratio | 0.6 | 0.48, 0.36 | 0.75, 0.6, 0.45 | 0.75, 0.6, 0.45 | 0.75, 0.6, 0.45 | 0.6, 0.45 |
| Lateral Slope | 9° | 9° | 9° | 9° | 9° | 9° |
| Number of Installed Spiral Heads | 2 | 2-4 | 2-4 | 2-4 | 2 | 2 |
| Feeding Size (mm) | 2-0.04 | 2-0.04 | 2-0.04 | 2-0.04 | 2-0.04 | 2-0.04 |
| Feeding Density (%) | 30-55 | 30-55 | 25-55 | 25-55 | 25-55 | 25-55 |
| Capacity (T/H) | 7-10 | 3-5 | 3-4 | 2-3 | 0.8-1.2 | 0.15-0.2 |
| Length (mm) | 2120 | 1600 | 1360 | 1060 | 700 | 460 |
| Width (mm) | 2120 | 1600 | 1360 | 1060 | 700 | 460 |
| Height (mm) | 5600 | 5300 | 5230 | 4000 | 2600 | 1500 |
| Weight (kg) | 1200 | 800 | 600 | 400 | 150 | 50 |
Note: Specifications are subject to change without notice due to ongoing product improvement.
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