Spiral Gravity Separator
Centrifugal gravity separation system engineered for heavy mineral extraction, silica sand heavy impurity stripping (chromite, ilmenite, zircon), and ore beneficiation without chemical reagents.
Engineered for producers selling on purity — stripping surface contaminants so your sand meets strict lab report thresholds.
Raw silica feed carries iron oxide coatings, clay films, and organic contamination that gravity washing alone leaves behind. This plant integrates mechanical attrition scrubbing ahead of classification specifically to scour surface contamination, ensuring your final output consistently meets the tighter SiO₂ and Fe₂O₃ spec limits demanded by glass, foundry, and ceramic buyers.
DISCUSS YOUR PROJECT99.4%+ SiO₂ Purity
Mechanical scrubbing strips iron-oxide and clay films gravity washing misses.
Tight Spec Control
Hydrocyclone classification maintains exact gradation bands on every batch.
<8% Moisture Output
Dewatering stage reduces stockpile moisture, cutting transport weight and drying fuel.
MACHINERY SPECIFICATIONS
| Parameter | Specification |
|---|---|
| Processing Capacity | 20 to 100 Tons Per Hour (t/h) |
| Feed Particle Size Range | 0.03 mm to 2.0 mm (75µm to 10 mesh) |
| Optimum Pulp Density | 25% – 40% Solids Weight Concentration |
| Spiral Construction | Heavy Fiberglass with Polyurethane Wearing Surface |
| Turn Profile & Column Height | 3.5 to 5.0 turns per vertical column |
| Separation Principle | Centrifugal force, hydrodynamic drag & specific gravity differential |
| Splitter Adjustment | Multi-point manual / calibrated discharge splitters |
INDUSTRIES THIS PLANT SERVES
Silica Sand Heavy Impurity Stripping (Chromite & Ilmenite Removal)
Heavy Mineral Sands Extraction (Rutile, Zircon, Monazite)
Iron Ore & Chromite Beneficiation & Upgrading
Coal Washing & Fine Carbon Recovery
Beach Sand
China Clay & Kaolin
Foundry Sand
Frac Sand & Proppant
Heavy Mineral Sands
Alluvial Gold
GOT QUESTIONS? WE HAVE ANSWERS.
Q·01 How does the spiral separator remove heavy mineral contaminants from silica sand?
It utilizes centrifugal force and differential settling velocity down helical turns; dense heavy minerals (SG >3.0) concentrate near the inner column, while lighter silica (SG 2.65) rides the outer spiral edge.
Q·02 Does the spiral gravity separator require chemical additives?
No, it operates 100% on physical hydro-gravity principles using water current and centrifugal force with zero chemical reagents.
Q·03 What feed slurry density yields maximum separation efficiency?
Optimum performance is achieved at 25% to 40% solids concentration by weight, ensuring smooth laminar stratification across the spiral profile.
Q·04 What is the expected service life of the spiral chutes?
The high-tensile fiberglass bodies with polyurethane wear lining provide 5+ years of continuous service under highly abrasive slurry conditions.
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"Vyom is an outstanding engineering partner for sand washing plants. Commissioning was fast, and the fines recovery efficiency exceeded our performance targets."
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