orissa government granite mines
The Role of Crushing and Sand-Making Equipment in Odisha’s Granite Mining Industry
The granite mining sector in Odisha plays a pivotal role in India’s construction and infrastructure development. With abundant reserves of high-quality granite, the state has become a hub for aggregate production, driving demand for efficient crushing and sand-making equipment. This article explores the industry’s challenges, technological advancements, and practical solutions for optimizing production.
Industry Background
Granite mining in Odisha faces unique challenges, including hard rock fragmentation, dust control, and the need for consistent grain shape—critical for concrete and asphalt applications. Traditional jaw crushers and cone crushers are often deployed for primary crushing, while vertical shaft impactors (VSIs) and sand washers are essential for producing manufactured sand (M-Sand) to replace scarce river sand.
Core Equipment Solutions
1. Primary Crushing: Heavy-duty jaw crushers with high manganese steel liners handle Odisha’s tough granite, reducing feed sizes from 600mm to 150mm.
2. Secondary/Tertiary Crushing: Multi-cylinder hydraulic cone crushers ensure finer output (≤40mm) with low wear costs.
3. Sand Making: VSI crushers optimize particle shape and gradation, crucial for M-Sand compliance with IS 383 standards.
4. Screening & Washing: High-frequency screens and log washers remove impurities, ensuring premium-grade aggregates.
Common FAQs
- Q: How to minimize dust in granite crushing?
- Q: What’s the ideal VSI rotor speed for granite?
- Q: Can recycled concrete be processed alongside granite?
A: Use wet suppression systems or enclosed crushing chambers with bag filters.
A: 1,200–1,800 RPM balances productivity and wear resistance.
A: Yes, but separate screening is recommended to avoid contamination.
Case Study: Balasore Granite Quarry
A quarry in Balasore upgraded to a 200 TPH mobile crushing plant (jaw + cone + VSI), boosting M-Sand yield by 30% while reducing energy use by 15%. The setup included a hybrid power system to mitigate grid instability—a common issue in rural Odisha.
Future Trends
Automation (IoT-enabled wear monitoring) and sustainable practices (water recycling) are gaining traction among Odisha’s miners seeking long-term viability amid stricter environmental norms.
For operators investing in Odisha’s granite sector, prioritizing robust equipment tailored to local conditions ensures profitability while meeting India’s infrastructure demands.