Roller crusher having at least one roller comprising a flange

Abstract

The invention relates to a roller crusher (1) having two generally parallel rollers (2) arranged to rotate in opposite directions, towards each other,and separated by a gap, each roller (2) having a first end (3) and a second end (4). The roller crusher (1) comprises a flange (5) attached to at least one of said ends (3, 4) of one of said rollers (2). The flange (5) extending in a radial direction of said roller (2), and has a height (H) above an outer surface (6) of said roller (2) which is sufficient to extend across said gap substantially along a nip angle (alpha) of said roller crusher (1).

Description

technical field

[0001] The invention relates to a roll crusher having two substantially parallel rolls arranged to rotate in opposite directions towards each other and separated by a gap, each roll having a first end and a second end department. Background technique

[0002] When crushing or grinding rock, ore, cement clinker, and other hard materials, a roll crusher may be used having two generally parallel rolls rotating in opposite directions towards each other and separated by a gap. The material to be crushed is fed into the gap by gravity or choke-fed. A type of roll crusher is known as a high pressure grinding roll or high pressure roll crusher. This roll crusher uses a crushing technique known as intergranular crushing. Here, the material to be crushed or crushed is crushed not only by the crushing surface of the roller, but also by the particles in the material to be crushed, so it is named intergranular crushing.

[0003] An example of a high pressure grinding ...

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