Roll Crusher

What’s a Roll Crusher?

Double roll crusher is a relatively old crushing equipment. After numerous upgrades and transformations, the manufacturing process is more mature. The equipment has a simple structure and less over-crushing. The tooth shape, size and arrangement on the roller surface can be changed according to the nature of the material. It can be used for medium and fine crushing of medium-hard and soft ores. 

Working Principle Of Roll Crusher

A roll crusher crushes using compression, with two rolls rotating about a shaft, towards the gap between the rolls. The gap between the rolls is set to the size of product desired, with the realization that the largest feed particle can only be 4 times the gap dimension. The particles are drawn into the gap between the rolls by their rotating motion and a friction angle formed between the rolls and the particle, called the nip angle. The two rolls force the particle between their rotating surface into the ever smaller gap area, and it fractures from the compressive forces presented by the rotating rolls.

Advantages Of Roll Crusher

• The particle size of the crushed material is uniform, the over-crushing rate is low, the maintenance is convenient, safe and reliable;
• Simple structure, small footprint, easy operation and maintenance. Made of high wear-resistant materials;
• Low maintenance cost, low noise, less dust;
• Excellent running performance, high energy and energy saving, green and low carbon.

Structure

High Spiral Classifier operation: the grinded pulp is fed into a tank from the inlet in the middle of settlement region, and the slurry classification sedimentation area is under the inclined tank. The spiral with low-speed rotation stirs the slurry, so that the fine particles rise, and the coarse particles sink to the bottom of the tank. The overflow dam is above the bearing center which is under screw shaft, and is underneath overflow end.

Customer site

Specification