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How Does the Double Roll Crusher Work on Materials?

Aug 02,2017

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As one of the crushing moguls that the double roll crusher can only be duplicated but cannot be surpassed, continuous development is the only option to ensure its high level. It can be applied to chemical, building material, refractory, metallurgy and other industrial sectors, which are used to crush medium hard materials such as slag, limestone, coke, etc. Wanting to promote the development of double roller crusher, we must first understand its crushing principle and technological process and carry on the analysis, based on the research of the crushing principle to help its further development.


The two toothed rollers are the main working parts in the material crushing process for double roller crusher, the two toothed rollers must be installed in parallel, each roll is arranged along the axial direction with a certain number of toothed rings, the material is crushed by the counter rotation of the toothed rollers, the process can be divided into three stages.

how does the double roll crusher work on materials

1. Coarse crushing stage

In the rotation movement, if the toothed rollers meet the large material, it must first carry on the impact shearing to the material, then carry on the tear and pull function, finally cause the material to crack and breakage. If the material being crushed can be bitten into by roller teeth, it can be sent into the second crushing stage, otherwise, the roller teeth skim over the remaining material, and the rotation of the roll teeth compels the material to turn over, the unbitten material waits for the continued crushing of next pair of teeth.

2. The second roller tooth crushing stage

This stage begins with the material is bitten into the roller teeth and finish in the process of separating itself from the front pair of roller teeth. The cross section of the two teeth at this stage is gradually smaller and then enlarged. Large-size materials are forcibly squeezed and cut up due to the inclusion size gradually becoming smaller, after the crushed material being squeezed out and dripped from the gear side clearance, the second stage is finished. The leakage materials from the gear side clearance need to continue the next stage.

3. Final production stage

When the front pair of roller teeth begin to break away from the bite, the crushed materials will leak out in large quantities, of course, there will be some of the larger granular materials being blocked by the splitting rods. When the double teeth move near the splitting rods and work with the splitting rods, they split the large-block materials and force them out, which is the third stage.

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