FIELD: mining.
SUBSTANCE: invention relates to devices for crushing and grinding of materials and can be used in roller crusher. Roller crusher comprises two substantially parallel rollers arranged to rotate in opposite directions towards each other and separated by a gap. Each roller has two ends, to at least one of which a flange is installed, which passes in radial direction of the roll and has a wear-resistant structure to ensure protection of the said flange against abrasion. Height of flange above outer surface of roller is sufficient to shut off said gap substantially along angle of gripping of said crusher.
EFFECT: creation of protective layer in crusher along roll edges in zone of increased pressure.
10 cl, 5 dwg
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