The ore stone crusher, also known as a double-roll crusher, is a mining machinery device specifically designed for ore crushing. It offers advantages such as high efficiency, energy savings, and controllable particle size, performing exceptionally well in medium and fine crushing operations.
1. Working Principle and Crushing Mechanism
Compression Crushing Principle
The double-roll crusher generates high-pressure compression forces ranging from 50 to 200 MPa through two counter-rotating rollers (smooth or toothed surfaces). This force draws ore into the gap between the rollers for compression crushing. Under roller friction, material is drawn into the crushing chamber, progressively crushed under pressure, and finally discharged through the gap. Particle size is precisely controlled by the adjustable gap (0.5-40mm).
Particle Size Adjustment and Overload Protection
Adjustment Method:
Adjust the roll gap (±1mm precision) by adding or removing shims to flexibly control the discharge particle size.
Safety Mechanism:
A spring or hydraulic system automatically retracts upon encountering hard objects (e.g., iron blocks), widening the roll gap to discharge foreign matter and protect the core components of the equipment
2.Ore Stone Crusher Core Advantages
Precise and Controllable Particle Size
Energy Efficiency and Low Maintenance Costs
Environmental Protection and Safety
The selection of crushing equipment is not about pursuing the most advanced technology, but about finding the solution best suited to the characteristics of the ore. In protecting valuable minerals, double-roll crushers often prove more practical and economical than high-end equipment.
