A roller crusher having two generally parallel rollers arranged to rotate in opposite directions, towards each other, and separated by a gap, where each roller has two ends. The roller crusher includes a flange attached to at least one of the ends of one of the rollers, where the flange extends in a radial direction of the roller and has a height above an outer surface of the roller. The roller crusher further includes at least two scrapers arranged consecutive to each other at an end of the roller with a flange for at least partially removing material accumulated on the flange and/or on the outer surface at the end of the roller. A method for operating a roller crusher is also provided.

A roller crusher having two generally parallel rollers arranged to rotate in opposite directions, towards each other, and separated by a gap, where each roller has two ends. The roller crusher includes a flange attached to at least one of the ends of one of the rollers, where the flange extends in a radial direction of the roller and has a height above an outer surface of the roller. The roller crusher further includes at least two scrapers arranged consecutive to each other at an end of the roller with a flange for at least partially removing material accumulated on the flange and/or on the outer surface at the end of the roller. A method for operating a roller crusher is also provided.

The disclosure relates to a roller crusher having two generally parallel rollers arranged to rotate in opposite directions, towards each other, and separated by a gap, each roller having two ends, the roller crusher comprising: a flange attached to at least one of the ends of one of the rollers, the flange extending in a radial direction of the roller, the flange having a height above an outer surface of the roller, wherein the roller crusher further comprises at least one scraper arranged at an end of the roller with a flange for at least partially removing material accumulated on the flange and/or on the outer surface at the end of the roller. According to the invention, the at least one scraper comprises a scraping element having a scraping surface which scraping surface comprises a polycrystalline diamond (PCD).

The present invention relates to a manufacturing apparatus comprising a polymer blade for scraping soap adhered to a roll mill used to make bar soaps. The manufacturing apparatus can be used to manufacture bar soaps, particularly Zinc Pyrithione (ZPT) containing bar soaps, that is characterized by enhanced discoloration resistance and/or improve anti-microbial effect.

The present invention relates to a manufacturing apparatus comprising a polymer blade for scraping soap adhered to a roll mill used to make bar soaps. The manufacturing apparatus can be used to manufacture bar soaps, particularly Zinc Pyrithione (ZPT) containing bar soaps, that is characterized by enhanced discoloration resistance and/or improve anti-microbial effect.

A scraper device for a roller crusher including a rotatable multi head scraper unit having at least two scrapers arranged tangentially about the multi head scraper unit at a radial distance from a rotational axis. The scraper device further includes a rotation actuator to rotate the multi head scraper unit to allow use of one of scrapers at a time. The scraper device further includes at least one brake arrangement to prevent and/or restrict rotation of the multi head scraper unit during operation of the one of the scrapers. Each of the scrapers includes a scraping element having a scraping surface formed from a polycrystalline diamond (PCD). Each scraping surface at least partly faces in a tangential direction defined at the scraper surface and directed along a reference rotational direction of the rotatable multi head scraper unit. A roller crusher including the scraper device and a method for operating the roller crusher is also provided.

A scraper device for a roller crusher including a rotatable multi head scraper unit having at least two scrapers arranged tangentially about the multi head scraper unit at a radial distance from a rotational axis. The scraper device further includes a rotation actuator to rotate the multi head scraper unit to allow use of one of scrapers at a time. The scraper device further includes at least one brake arrangement to prevent and/or restrict rotation of the multi head scraper unit during operation of the one of the scrapers. Each of the scrapers includes a scraping element having a scraping surface formed from a polycrystalline diamond (PCD). Each scraping surface at least partly faces in a tangential direction defined at the scraper surface and directed along a reference rotational direction of the rotatable multi head scraper unit. A roller crusher including the scraper device and a method for operating the roller crusher is also provided.

A roller crusher having two parallel rollers that rotate in opposite directions and are separated by a gap. At least one of the rollers has a flange at an end thereof. The roller crusher includes a material removal device having a rotatable cutter unit with a plurality of cutter elements arranged tangentially about the rotatable cutter unit at a radial distance from a rotational axis for the rotatable cutter unit. A rotation device rotates the rotatable cutter unit at an end of a roller having a flange. When the cutter unit is rotated by the rotation device, the cutter unit at least partially cuts away material accumulated on the flange and/or on the envelope surface at an end portion of the roller adjacent the flange. Each cutter elements presents an impact surface that faces the material to be cut away and is a polycrystalline diamond (PCD).

A roller crusher having two parallel rollers that rotate in opposite directions and are separated by a gap. At least one of the rollers has a flange at an end thereof. The roller crusher includes a material removal device having a rotatable cutter unit with a plurality of cutter elements arranged tangentially about the rotatable cutter unit at a radial distance from a rotational axis for the rotatable cutter unit. A rotation device rotates the rotatable cutter unit at an end of a roller having a flange. When the cutter unit is rotated by the rotation device, the cutter unit at least partially cuts away material accumulated on the flange and/or on the envelope surface at an end portion of the roller adjacent the flange. Each cutter elements presents an impact surface that faces the material to be cut away and is a polycrystalline diamond (PCD).

A scraper device for a roller crusher, which scraper device includes a rotatable multi head scraper unit having at least two scrapers arranged tangentially about the rotatable multi head scraper unit at a respective radial distance from a rotational axis of the rotatable multi head scraper unit. The scraper device further includes a rotation actuator arranged to selectively rotate the rotatable multi head scraper unit to allow operative use of one of the at least two scrapers at a time. The scraper device further includes at least one brake arrangement configured to prevent and/or restrict rotation of the rotatable multi head scraper unit during operation of the one of the at least two scrapers. A roller crusher including the scraper device and a method for operating the roller crusher is also provided.