Process Overview
Glass Grade Silica Washing & Classification
This flow chart illustrates the complete beneficiation cycle of raw silica sand into high-purity glass-grade silica—suitable for float glass, container glass, and specialty applications like, Solar panel’s glass.
Each stage in the process is engineered to maximize impurity removal and maintain controlled particle sizing:
● Initial Screening eliminates oversized grains, improving downstream efficiency.
● Drum Scrubbing & Washing loosen surface coatings like clay and organic matter. (With the help of drum with liner).
● Wet Sieving and Attrition Scrubbing separate fine fractions and clean embedded contaminants.
● Spiral & Gravity Separations It is used to remove iron from wet silica to improve purity and efficiency in next process. (This equipment we Out sourced from experts and collaborate it with our Plant layout).
● Magnetic Separation targets iron and other magnetic particles, critical for achieving.
● Drying stabilizes moisture levels for packaging and end-use readiness.
● Final Screening & Quality Check ensures compliance with customer mesh-size and purity specs.
The result: Consistent silica output as per customer’s requirements with respect to the supplied Raw Material.
End-to-End Solutions for High-Purity Glass
Grade Silica Washing & Classification
Shiv Shakti Engineering Company offers custom-designed turnkey plants for processing Glass Grade Silica, delivering high-purity output tailored for flat glass, container glass, solar panel’s glass, and specialty optical applications. These solutions integrate material handling, scrubbing, washing, classification, dewatering, drying, final screening and packaging systems—engineered to meet customer’s requirements.
● Function: Transform raw silica into desired quality.
● Scope: Attrition scrubbing, wet classification, dewatering, drying, and bagging.
● Features: Modular design, PLC/SCADA integration, corrosion-resistant construction.
● Benefits: Consistent purity (≥99.5% SiO₂), low Fe₂O₃ (<0.015%), energy-efficient operation, global compliance.
| Stage | Function | Performance Metrics* |
| Initial Screening | Removes oversize particles | Particle size control: ≥ 90% under 1.18 mm |
| Attrition Scrubbing & Washing | Eliminates surface clay and silt | Clay removal efficiency: > 95% |
| Hydro cyclone & Classifier/Wet Sieving | Segregates size fractions | Size uniformity: ±2% across batches |
| Attrition Scrubbing (Check it) (Dewatering Screen) | Liberates embedded impurities | Silica liberation improvement: ~15% |
| Magnetic Separation | Removes iron & magnetic contaminants | Fe₂O₃ content reduced to ≤ 0.02% |
| Rotary/Fluid Bed Dryer (Optional) | Lowers moisture content | Moisture control: ≤ 5% (target: nil) |
| Final Screening, QC & Silo Storage | Segregates sand by size; stores for dispatch | Size fractions: 0.15–2 mm; Silo capacity: 50–200 m³ |
| Bagging & Dispatch | Packs sand in bulk bags or 50 kg sacks | Accuracy: ±0.5%; Bagging rate: 200–600 bags/hr |
📈 Outcome: Improved product pricing potential, reduced defect rates, and best in yield consistency across production cycles.
* All Given Performance Metrics might be varied with respect to feed quality of raw material.
