Hybrid disc

Patent metadata

Field	Value
Publication number	US-2021107011-A1
Application number	US-201917046511-A
Country	US
Kind code	A1
Filing date	Apr 4, 2019
Priority date	Apr 16, 2018
Publication date	Apr 15, 2021
Grant date	—

Abstract

The invention relates to a circular disc element (10) comprising at least two beam elements (20). Each beam element extends beyond an outer circumference (11) of the circular disc element (10) in an extension direction (100) which is parallel to a radial direction (101) of the disc element (101). The circular disc element (10) further comprises at least two holes (30) extending through the circular disc element (10) in a longitudinal direction (110) which is substantially perpendicular to each of the extension directions (100) of the at least two beam elements (20). The at least two 10beam elements (20) are equidistantly spaced apart from each other with respect to a circumferential direction (120) of the circular disc element (10), which circumferential direction (120) corresponds to the outer circumference (11) of the circular disc element (10). The invention further relates to a use of the circular disc element (10) as grinding means in a grinding process, to a device for grinding slurry (50) as well as to a method for grinding slurry (50).

First claim

1 . A circular disc element, comprising:
at least two beam elements, each beam element extending beyond an outer circumference of the circular disc element in an extension direction which is parallel to a radial direction of the disc element; at least two holes extending through the circular disc element in a longitudinal direction which is substantially perpendicular to each of the extension directions of the at least two beam elements; wherein the at least two beam elements are equidistantly spaced apart from each other with respect to a circumferential direction of the circular disc element, which circumferential direction corresponds to the outer circumference of the circular disc element.

2 . The circular disc element according to claim 1 ,
wherein number of extending beam elements “n” is even and at least 4 (n=4, 6, 8, 10 etc.), while the number of the holes “m” correlates with the number of the beam elements “n” in, that m=k*0.5n, k being 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 or the number of extending beam elements “n” is uneven (n=3, 5, 7, 9, 11 etc.), while the number of the holes “al” correlates with the number of the beam elements “n” in that m=k*n, k being 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10 or that the number of beam elements “n” is 2, while the number of holes “m” correlates with the number of the beam elements “n” in that m=k*n, k being 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10.

3 . The circular disc element according to claim 1 ,
wherein the at least two holes and the at least two beam elements are arranged in an alternate manner on the circular disc element with respect to the circumferential direction, wherein the number of extending beam elements is equal to the number of holes extending through the circular disc element.

4 . The circular disc element according to claim 1 ,
wherein each of the at least two holes is equidistantly arranged between the at least two beam elements with respect to the circumferential direction.

5 . The circular disc element according to claim 1 ,
wherein the extension of the at least two beam elements in the longitudinal direction is greater than the extension of the circular disc element in the longitudinal direction.

6 . The circular disc element according to claim 1 ,
wherein the extension of the at least two beam elements in the longitudinal direction is adjustable.

7 . The circular disc element according to claim 1 , further comprising:
an inner circumference which is defined by a curved fitting surface such that the circular disc element is attachable to a rotational shaft by means of a force fit connection or a form fit connection.

8 . The circular disc element according to claim 1 ,
wherein the length with which the at least two beam elements extend beyond the outer circumference of the circular disc element is adjustable.

9 . The circular disc element according to claim 1 ,
wherein a diameter of the at least two holes extending through the circular disc element is adjustable.

10 . The circular disc element according to claim 1 ,
wherein the at least two beam elements are attached to the circular disc element by means of a connection selected from the group consisting of a force fit connection, a form fit connection, a key connection, an adhesive connection, a welded connection and a soldered connection.

11 . The circular disc element according to claim 1 ,
wherein the circular disc element comprises 3, 4, 5, 6, 7 or 8 beam elements; and/or wherein the circular disc element comprises 3, 4, 5, 6, 7 or 8 holes.

12 . A grinding processes employing the circular disc element according to claim 1 as a grinding means.

13 . A device for grinding slurry, comprising:
an elongated chamber having a rotational shaft extending between a first end and a second end of the elongated chamber; wherein at least one circular disc element according to claim 1 is attached to the rotational shaft between the first end and the second end of the chamber such that slurry is ground within the chamber when the slurry is conveyed from the first end to the second end of the chamber.

14 . The device according to claim 13 ,
wherein a plurality of circular disc elements are attached to the rotational shaft between the first end and the second end of the chamber such that slurry is ground within the chamber when the slurry is conveyed from the first end to the second end of the chamber.

15 . The device according to claim 14 , further comprising:
a plurality of protruding elements being attached to an inner surface of the chamber, wherein each of the plurality of protruding elements protrudes into the elongated chamber such that a part of each of the plurality of protruding elements is arranged between two respective circular disc elements.

16 . Method for grinding a mineral slurry, comprising:
feeding slurry into an elongated chamber having a rotational shaft extending between a first end and a second end of the elongated chamber; rotating at least one circular disc element according to claim 1 , wherein the at least one circular disc element is attached to the rotational shaft extending between the first end and the second end of the chamber; grinding the slurry within the chamber when the slurry is conveyed from the first end to the second end of the chamber.

Assignees

• Omya Int Ag

Inventors

• Massafra Francesco
• Rogels Christoph

Classifications

• B02C17/163 Primary

  Stirring means · CPC title

• B02C17/18

  Details · CPC title

• B02C2017/165

  with stirring means comprising more than one agitator · CPC title

• B02C17/161

  Arrangements for separating milling media and ground material · CPC title