The mine dump rocks crusher(also known as a double-roll crusher) is an excellent choice for rock crushing in mine stockpiles, particularly when processing medium to low hardness rocks, where it demonstrates significant advantages.

mine dumping rocks crusher

1.Working Principle

The working principle of the double-roll crusher is straightforward and easy to understand: two rollers rotate relative to each other under motor drive.

Material enters the V-shaped crushing chamber formed between the rollers from the top, where it is crushed through continuous compression and shearing forces.

2. Advantages

Precise particle size control with low over-grinding rate:

This is one of its core strengths. The maximum particle size of the product can be precisely controlled by adjusting the gap between the two rolls using simple mechanical or hydraulic devices. This slow extrusion process effectively minimizes the production of excessively fine powder, which is crucial for products requiring specific particle size ranges—such as high-quality concrete aggregates or ore before grinding.

Energy Efficiency and High Performance:

The equipment operates with high efficiency, achieving energy savings of up to 45% at equivalent output levels. Integrating a double-roll crusher for pre-crushing within the crushing system allows grinding equipment to achieve its full production capacity.

Simple Structure and Easy Maintenance:

Its mechanical design is relatively uncomplicated, primarily consisting of rollers, support bearings, compression and adjustment mechanisms, and drive units. This translates to lower failure rates and easier routine maintenance, including replacement of wear parts like roller liners. The modular design facilitates installation and servicing.

Excellent Environmental Performance and Adaptability:

The equipment incorporates dust-proof plates and noise-reduction devices with superior sealing, minimizing dust emissions and excessive noise during operation. Its structural design allows effective adaptation to dry ore, wet ore, muddy ore, and sticky ore, with low susceptibility to blockages. It is suitable for continuous operation in open conditions such as mine stockpiles.