Disc arrangement for a grinding mill and a grinder and use thereof for grinding a material to be ground

Abstract

The invention relates to a disc arrangement for a grinder, the disc arrangement comprising or consisting of a plurality of discs (S). Each disc (S) comprises a truncated conical, biconical or double-truncated conical shape and an angle between a surface line of each disc and a conical axis is > 30° to 82.5°. The discs (S) are stacked along a central axis (MA) of the assembly (A). The assembly (A) comprises a plurality of radial recesses (RN) pointing towards the central axis (MA) of the assembly (A) and a plurality of radial stems (RS) pointing away from the central axis (MA). Each radial recess (RN) comprises a rounded recess base (NG); and each radial stem (RS) comprises a rounded edge (KT). Furthermore, the invention further relates to a grinder comprising at least two disc arrangements of the invention. Finally, the invention also relates to the use of an assembly or a grinder according to the invention for grinding a material to be ground.

Description

Technical Field

[0001] The present invention relates to an assembly comprising or composed of a plurality of disks according to claim 1, a grinder or grinding device or grinding workpiece for a mill according to claim 10, and the use of the assembly or grinder according to claim 14. Background Technology

[0002] According to existing technology, such as published document EP 1600 214A1, pulverizing equipment for loose material particles is known. This pulverizing equipment includes rollers with a serrated profile, the radial rods or radial webs and radial grooves of which are axially offset from each other, such that they form an engaging pair. From a top view of the grinder or roller pair, a serrated grinding gap is formed between the rollers. Ordinary grinders are also known to those skilled in the art, for example from publication: Becher, T. et al., "New Types of Mills for Various Raw Materials," Brauwelt, No. 45, 2015, pp. 1344-1349.

[0003] However, the inventors of this application have observed that when such grinding equipment is used for a sufficiently long time, localized widening of the grinding gap occurs in the area of ​​the radial rod edge or the base of the radial groove, which is detrimental to allowing insufficiently ground material to pass through the grinder. Therefore, optimal grain composition cannot be achieved. Furthermore, the grinder must be replaced or repaired, increasing downtime and maintenance costs. Summary of the Invention

[0004] Therefore, an object of the present invention is to provide a disc device and / or grinder to reduce or even avoid the increase in grinding gap size caused by wear in the region of the radial rod edge or the radial groove base. Furthermore, one aspect of the invention is to provide corresponding applications.

[0005] The above-mentioned objective is achieved by the components according to claim 1. The subject matter protected by the dependent claims embodies an implementation with even better results.

[0006] The protection component A is required to include or be composed of multiple disks S. Each disk S comprises a truncated conical, double conical, or double truncated conical shape;

[0007] In each disk S, the angle between the surface line (=side) of disk S and the conical axis KA of disk S is >30° to 82.5°, preferably 40° to 75°.

[0008] Among them, the disks S are stacked along the central axis MA of component A;

[0009] Among them, the conical axis KA of the disk S is set to be parallel to or coaxial with the central axis MA of the component A;

[0010] Component A includes a plurality of radial grooves RN pointing towards the central axis MA of component A; and

[0011] Component A includes a plurality of radial rods RS, the radial rods RS pointing away from the central axis MA of component A.

[0012] In each disk S of component A according to the invention, the angle between the surface line (=side surface) of disk S and the conical axis KA of disk S is defined as the smaller of two angles between the surface line and the conical axis, wherein these two angles are determined once by counterclockwise measurement and once by clockwise measurement, which is the opposite of the angle measurement which is usually always counterclockwise.

[0013] The component according to the invention is characterized in that each radial groove RN includes a rounded, preferably concave, groove base NG; and each radial rod RS includes a rounded, preferably convex, edge KT. The disc device according to the invention can be a component of the rollers of a grinder for grinding plant materials.

[0014] The inventors of this invention have discovered that the grinding gap widens in the region of the disc due to wear on the edge of the radial rod or the base of the radial groove. Furthermore, they have found that, by means of the disc device configured according to the invention as described above, the widening of the grinding gap and thus the harmful changes in grain sorting can be unexpectedly avoided or at least mitigated. Therefore, according to the invention, the radial rod is rounded at its edge, and the sharp V-shaped groove base of the radial groove is replaced by a rounded groove base shape, rather than the conventional design where the radial rod has sharp edges and the corresponding sharp V-shaped groove of the radial groove. In the radial groove RN according to the invention, the rounded groove base NG represents a rounded groove with a predetermined radius (partial angle, depending on the angle OW of the radial groove RN) at the groove base.

[0015] The rounded edges in both the radial rod and the radial groove ensure a greater material thickness in the radial rod region compared to a sharp edge, thus preventing or minimizing an increase in the grinding gap size in the radial groove region due to wear of the disc material during the grinding process in the grinder, for example, with plant materials. Furthermore, the rounding of the edges and groove bases according to the invention allows for a longer service life of the disc assembly in the grinder. Additionally, the rounded edges according to the invention significantly reduce the risk of injury to technicians during installation or maintenance compared to conventional radial rods with tapered edges. Moreover, the risk of damage to the disc at the radial rod during transport and / or installation is also reduced because the rounded edges of the radial rod are less sensitive to impacts or other mechanical forces.

[0016] For the purposes of this invention, "truncated cone, double cone or double truncated cone shape" includes the corresponding ideal geometry of truncated cone, double cone and truncated double cone.

[0017] However, the invention is not limited thereto, but may also include shapes that deviate from the ideal geometry (such as non-linear, for example curved or stepped or serrated surface lines or sides), which are common in the field of this application (i.e. in the grinders of mills suitable for crushing plant solids) or provided according to the invention (e.g., rounded edges or rounded grooves).

[0018] The disks of the components according to the invention are made of materials commonly used in grinders (particularly stainless steel, hardened steel, or ceramic). The components according to the invention are preferably rotationally symmetrical. Preferably, the disks of the components according to the invention are rotationally symmetrical at the edges or in regions of the edges. In particular, this also includes cases where the disks are rotationally symmetrical at the edges but have regular or irregular contours on the side surfaces. Particularly preferred is that the disks of the components according to the invention are rotationally symmetrical, i.e., each disk of the components according to the invention is rotationally symmetrical overall.

[0019] The subject matter protected by the dependent claims embodies an embodiment of a better effect of the components of the invention.

[0020] The radial groove RN can be perpendicularly pointed to the central axis MA of component A. Alternatively or additionally, the radial rod RS can be perpendicularly opposite to the central axis MA of component A.

[0021] These devices illustrate a simple implementation of the components according to the invention. Their mechanical strength is particularly high due to the symmetrical design of the radial rods.

[0022] In a preferred embodiment of the component according to the invention, in all cases, the radius Ri of the radial groove RN at the rounded groove base NG can be greater than the radius Ra of the radial rod RS at the rounded edge.

[0023] This ensures that when the components according to the invention are used in a grinder with two parallel disc devices according to the invention, the radial rod RS of one device and the radial groove RN of the other parallel device (and vice versa) will not come into contact, thus avoiding damage. Furthermore, if the radius Ri of the radial groove RN at the rounded groove base NG is greater than the radius Ra of the radial rod RS at the rounded edge in all cases, then the grinding gap MS near the edge of the radial rod (i.e., at the reversal point of the serrated path of the grinding gap) is smaller than the grinding gap formed along the surface line or side of the corresponding disc S (the linear region between reversal points). This effectively prevents excessively coarse particles, or even entire particles, from passing through the grinding gap near the rounded edge.

[0024] In the assembly according to the invention, the diameter of the disk S can be from 40 mm to 500 mm, preferably from 100 mm to 400 mm. Furthermore, in the assembly according to the invention, the thickness of the disk S can be from 30 mm to 200 mm, preferably from 50 mm to 80 mm. This achieves high mechanical stability with relatively low material input.

[0025] Furthermore, the radius Ri of the radial groove RN at the rounded groove base NG can be from 0.5 mm to 25 mm, preferably from 1 mm to 20 mm, and particularly from 2 to 10 mm. Alternatively or otherwise, the radius Ra of the radial rod RS at the rounded edge KT can be determined according to the following first equation (GL1) (*= multiplication operator):

[0026] Ra = Ri - 2 * MS + RT(GL1)

[0027] Where: Ra = radius Ra of the radial rod RS at the rounded edge KT, in mm; Ri = radius Ri of the radial groove RN at the base NG of the rounded groove, in mm; MS = milling clearance, in mm; RT = concentricity tolerance or runout tolerance, in mm. Concentricity tolerance is a correction value and is determined, for example, by the dimensional tolerances of shafts, bearings, and pulleys.

[0028] According to the present invention, the grinding clearance MS can be from 0.10 mm to 1.40 mm, preferably from 0.10 mm to 0.80 mm, preferably from 0.10 mm to 0.50 mm, preferably from 0.20 mm to 0.60 mm, and particularly from 0.20 mm to 0.40 mm. Furthermore, the concentricity tolerance RT can be from 0.05 mm to 0.30 mm, preferably from 0.10 mm to 0.20 mm, and particularly from 0.12 mm to 0.18 mm. According to the present invention, the concentricity tolerance includes bearing clearance caused by wear and / or damage, deviation caused by thermal expansion, bearing tolerance, and a predetermined safety margin.

[0029] The components according to the invention may be limited to a single range of values ​​of parameters Ri, Ra, MS, and RT as described above or calculated, or any combination thereof. Preferably, all of the above-described parameters Ri, Ra, MS, and RT are limited to the range of values ​​mentioned above or calculated accordingly, particularly the range of values ​​that are preferred or especially preferred.

[0030] In a variation of this implementation, the radius Ra of the radial rod RS at the rounded edge KT can be determined according to the following second equation (GL2) (* = multiplication operator; / = division operator):

[0031] Ra=Ri–2*(RT*cos((180°-OW) / 2)+RT)(GL2)

[0032] Where: Ra = radius Ra of radial rod RS at rounded edge, in mm; Ri = radius Ri of radial groove RN at base NG of rounded groove, in mm; OW = angle of radial groove RN, in °; RT = concentricity tolerance, in mm.

[0033] In this embodiment, the angle OW of the radial groove RN is 15° to <120°, preferably 30° to 100°, and particularly 40° to 80°. According to the third equation (GL3) below, the angle OW of the radial groove RN is in principle related to the angle MWI between the surface line of the disk S and the conical axis KA of the disk S:

[0034] OW = 180° - 2 * MWI(GL3)

[0035] Furthermore, in this embodiment, the concentricity tolerance RT is 0.05 mm to 0.30 mm, preferably 0.10 mm to 0.20 mm, and particularly 0.12 mm to 0.18 mm. The components according to the invention may be limited to a single range of the values ​​of parameters Ri, Ra, OW, MWI, and RT as described above or calculated, or any combination thereof. Preferably, all the above-described parameters Ri, Ra, OW, and MWI are limited to the corresponding ranges of values ​​mentioned above or calculated, particularly the correspondingly preferred or especially preferred ranges.

[0036] According to the embodiments of the components according to the invention described above, the radius Ra of the radial rod RS is determined according to the first equation (GL1) or the second equation (GL2) described above. When the components according to the invention are used in a grinder having a double-disc device arranged in parallel according to the invention, this ensures that the radial rod RS of one device and the radial groove RN of the other parallel device do not contact (and vice versa), and that, when used as intended, the predetermined grinding gap does not increase or does not increase as rapidly as in conventional devices due to material wear, thereby avoiding deviations from the desired and / or preset degree of grinding or from the desired grain sorting, even during long-term use. Furthermore, these embodiments ensure that the grinding gap MS in the edge region of the radial rod is smaller than the grinding gap along the surface line or side of the corresponding disk S. This effectively prevents excessively coarse particles or even entire particles from passing through the grinding gap in the rounded edge region. It is only because modern machining technology, especially CNC milling technology, has become feasible that it is possible to accurately and economically manufacture the disc device with rounded edges and grooved base according to the present invention. However, this still requires additional effort in machining technology compared to manufacturing conventional disc devices with sharp-shaped edges and grooved bases.

[0037] Furthermore, component A may include a first end segment F1 at the first end E1. In this case, the first end segment F1 is cylindrical or hollow. The central axis MF1 of the first end segment F1 is arranged parallel to or coaxial with the central axis MA of component A. Here, the length (=thickness) of the first end segment F1, measured in the direction of the central axis MA of component A, is preferably 1 mm to 100 mm, preferably 1 mm to 50 mm, particularly 2 mm to 20 mm. The diameter of the first end segment F1 preferably corresponds to the diameter of the disk SR1 of component A adjacent to the first end segment F1 at the first end segment E1 (= outer edge diameter of the disk SR1 adjacent to the first end segment F1). Here, the disk SR1 is the outermost disk of component A disposed at the first end E1. Preferably, the diameter of the first end segment F1 is not greater than the diameter of the disk SR1 of component A adjacent to the first end segment F1 at the first end E1 of component A. In this way, sufficient mechanical stability is achieved while using as little material as possible.

[0038] The inventors of this invention, based on their own observations, have recognized that the ends of the disc-shaped device in conventional grinders represent structural weak points where cracking or breakage may occur due to foreign matter in the material being ground. By reinforcing the component according to the invention with cylindrical end sections at at least one end, preferably at both ends, the component is protected from these cracking in the corresponding end section regions when used in a grinder.

[0039] In this embodiment, it is particularly advantageous that the first end segment F1 is connected to the disk SR1 of the component A adjacent to the first end segment F1 by means of press fit, form fit, or material fit. Alternatively, the first end segment F1 may be integral with the adjacent disk SR1.

[0040] Furthermore, component A may include a second end segment F2 at the second end E2. In this case, the second end segment F2 is cylindrical or hollow. The central axis MF2 of the second end segment F2 is arranged parallel to or coaxial with the central axis MA of component A. The length (=thickness) of the second end segment F2, measured in the direction of the central axis MA of component A, is preferably 1 mm to 100 mm, preferably 1 mm to 50 mm, particularly 2 mm to 20 mm. The diameter of the second end segment F2 preferably corresponds to the diameter of the disk SR2 of component A adjacent to the second end segment F2 at the second end E2 (= outer edge diameter of the disk SR2 adjacent to the second end segment F2). The disk SR2 is the outermost disk of component A disposed at the second end E2. Preferably, the diameter of the second end segment F2 is not greater than the diameter of the disk SR2 of component A adjacent to the second end segment F2 at the second end E2 of component A. In this case, the advantages listed above for the first end segment F1 are similarly applicable.

[0041] Also in this embodiment, it is particularly advantageous that the second end segment F2 is connected to the disk SR2 of the component A adjacent to the second end segment F2 by means of press fit, form fit, or material fit. Alternatively, the second end segment F2 may be integral with the adjacent disk SR2.

[0042] Preferably, the same material as the disk used to manufacture the component is used for the first end segment F1 and / or the second end segment F2. However, preferably, a material with greater hardness can also be used. If the first end segment F1 and / or the second end segment F2 are composed of a solid material, a particularly high mechanical reinforcement effect is achieved.

[0043] The objective of the invention is further addressed by the subject matter of claim 10.

[0044] Therefore, protection is claimed for a grinding mill MW used in a mill, which includes at least:

[0045] The first roller WA1 includes a first shaft W1 and a first component A1; and

[0046] The second roller WA2 includes a second shaft W2 and a second component A2;

[0047] The first shaft W1 and the first component A1 are connected to each other by press-fit, form fit or material fit, or are integrated into one piece;

[0048] The second shaft W2 and the second component A2 are connected to each other by press-fit, form fit or material fit, or are integrated into one piece;

[0049] The first component A1 is component A according to any one of claims 1 to 9;

[0050] The second component A2 is component A according to any one of claims 1 to 9;

[0051] The central axis MA1 of the first component A1 is set parallel to the central axis MA2 of the second component A2;

[0052] The radial rod RS1 of the first component A1 engages or interlocks with the radial groove RN2 of the second component A2; and

[0053] The radial rod RS2 of the second component A2 engages or interlocks with the radial groove RN1 of the first component A1.

[0054] Because the grinder according to the invention comprises at least two components according to the invention, the advantages discussed above in conjunction with the components according to the invention are similarly applicable to the grinder according to the invention. Preferably, in the grinder according to the invention, the first component A1 and the second component A2 each have the same values ​​for the parameters Ri, Ra, MWI, OW, RT, the diameter of the disk S, and the thickness of the disk S as defined above. Particularly preferably, in the grinder according to the invention, the first component A1 and the second component A2 are completely identical. Particularly preferably, in the grinder according to the invention, the first roller WA1 and the second roller WA2 are completely identical.

[0055] In the grinder according to the invention, it is particularly preferred that the first roller WA1 and the second roller WA2, or the first component A1 and the second component A2, are arranged in opposite directions.

[0056] In the grinder according to the invention, a gap is formed between the first component A1 and the second component A2, which is called the grinding gap MS.

[0057] In the grinder according to the invention, the distance between the central axis MA1 of the first component A1 and the central axis MA2 of the second component A2 (=the center distance of the grinder) is determined based on the disk diameter of the first component A1 and the disk diameter of the second component A2 and the desired grinding gap MS.

[0058] In the grinder according to the invention, in the region of the radial rod edge, i.e., in the region where rounding exists, or in a portion of this region, the grinding gap MS is preferably smaller than the grinding gap MS along the surface line or side of the corresponding disk S, i.e., the linear region between the radial rod edge and the groove base of the radial groove RN provided adjacent to this radial rod RS. This effectively prevents excessively coarse particles, or even entire particles, from passing through the grinding gap MS in the rounded edge region.

[0059] Advantageous embodiments of the grinder according to the invention are the subject of the dependent claims.

[0060] In one embodiment, the central axis MA1 of the first component A1 may be configured to be coaxial with the central axis of the first axis W1. Consequently, the central axis MA2 of the second component A2 is configured to be coaxial with the central axis of the second axis W2.

[0061] Such devices facilitate the assembly and adjustment of the grinder according to the invention, such as the roller spacing and grinding gap.

[0062] In another embodiment, the first axis W1 and the second axis W2 can be arranged relative to each other such that the central axis of the first axis W1 and the central axis of the second axis W2 are arranged parallel to each other. In this case, a gap is formed between the first component A1 and the second component A2, which is called the grinding gap MS.

[0063] In the grinder according to the invention, the net width of the grinding gap MS along its length direction is 0.10 mm to 1.40 mm, preferably 0.10 mm to 0.80 mm, preferably 0.10 mm to 0.50 mm, preferably 0.20 mm to 0.60 mm, and particularly 0.20 mm to 0.40 mm.

[0064] Finally, the objective according to the invention is achieved through the use according to claim 14.

[0065] This invention claims the use of at least one component A according to any one of claims 1 to 9 or the grinder according to any one of claims 10 to 13 for grinding materials to be ground. In this document, the material to be ground is or comprises plant material, preferably plant material comprising protein. The material to be ground is preferably selected from the group consisting of: malt, ungerminated grains, barley, rice, corn, millet, chickpeas, soybeans, potatoes, and any mixture thereof. Preferably, the material to be ground is a raw material suitable for food or beverage production, preferably for beer production, or any mixture of these raw materials.

[0066] By using the components or grinders according to the invention for grinding plant materials, particularly the aforementioned plant materials, the disadvantages associated with the prior art discussed at the outset can be avoided and the desired degree of grinding can be achieved without causing undesirable local enlargement of the grinding gap in the radial groove base region.

[0067] Further disclosure

[0068] The following table shows the parameters discussed above in conjunction with this invention and their exemplary non-limiting values:

[0069] Attached Figure Description

[0070] The following figures illustrate prior art embodiments and components of the present invention:

[0071] Figure 1 It is an off-scale schematic diagram (top view) of a conventional grinder having two parallel conventional disc devices, each disc device including a radial rod with a tapered edge and a corresponding tapered V-shaped groove with a radial groove;

[0072] Figure 2 The radial rod RS of a conventional component engages with the corresponding radial groove of another conventional component. Figure 1 An enlarged view of the circular cross-section;

[0073] Figure 3 This is a schematic diagram (top view) of an abrasive according to the invention, not drawn to scale, having two parallel components and a plurality of discs according to the invention, wherein the radial rods are rounded at their edges and the radial grooves include rounded groove bases;

[0074] Figure 4 The radial rod RS of one component according to the invention engages in the radial groove of another component according to the invention, corresponding to... Figure 3 An enlarged view of the circular cross-section;

[0075] Figure 5 yes Figure 4 A further enlarged view of the joint shown in the image;

[0076] Figure 6 This is a schematic diagram, not drawn to scale, of an assembly with multiple disks according to the present invention, wherein the radial rods are rounded at their edges and the radial grooves have rounded groove bases; and

[0077] Figure 7 This is a schematic diagram of an assembly with multiple disks, drawn out of scale according to the present invention, wherein the assembly has a cylindrical end section at one end. Detailed Implementation

[0078] Figure 1A conventional grinder HMW equipped with two rollers HWA1, HWA2 is shown. Each roller HWA1, HWA2 consists of rotatably mounted shafts HW1, HW2, on which are arranged components HA1, HA2 consisting of disks HS1, HS2. In this example, the conventional disks HS include a truncated conical or double-truncated conical shape and are stacked accordingly along the central axes HMA1, HMA2 of the components HA1, HA2. The two components HA1, HA2 of the conventional design each include multiple radial bars HRS1, HRS2 and radial grooves HRN1, HRN2. The radial bars HRS1 of the first component HA1 engage in the radial grooves HRN2 of the second component HA2, and vice versa. In the conventional components, the radial bars HRS1, HRS2 include sharp edges HKT1, HKT2, and the radial grooves HRN1, HRN2 include sharp V-shaped groove bases, as particularly in Figure 2 Visible in the enlarged joint view. A grinding gap HMS is formed between the two conventional components HA1, HA2, or more precisely, between the radial bars that are adjacent to each other when the two components HA1, HA2 are joined. The radial grooves HRN1, HRN2 each include angles OW1, OW2, for example, said angles are at... Figure 1 The diagram is OW1. Each disk HS1, HS2 includes angles MWI1 and MWI2 between the surface line of disk HS1, HS2 and the corresponding conical axes KA1, KA2 of disk HS1, HS2, where... Figure 1 Only the angle MWI1 is shown. Figure 1 In this configuration, the conical axis KA1 coincides with the central axis HMA1 of component HA1. Therefore, the conical axis KA2 coincides with the central axis HMA2 of component HA2.

[0079] In comparison, Figure 3 A grinder MW according to the invention is shown, having a first roller WA1 and a second roller WA2. Here, the first roller WA1 includes a first shaft W1 and a first component A1 according to the invention. Therefore, the second roller WA2 includes a second shaft W2 and a second component A2 according to the invention. The first roller WA1 and the second roller WA2 are rotatably mounted and can rotate in opposite directions during operation of the grinder. A grinding gap MS (only between the first component A1 and the second component A2) is formed in the grinder MW according to the invention. Figure 5 (As shown in the diagram). The first component A1 consists of a plurality of first disks S1, wherein each first disk S1 comprises a truncated conical or double-truncated conical shape. More specifically, only those components are arranged in a truncated conical shape. Figure 3The first disk S1 at the left end of the first component A1 has a truncated conical shape, while the remaining first disks S1 include a double-truncated conical shape. The first disks S1 are stacked along the first central axis MA1 of the first component A1. Therefore, the first conical axis KA1 of each first disk S1 is arranged coaxially with the first central axis MA1 of the first component A1. The first component A1 includes a plurality of first radial rods RS1, the direction of which is away from the first central axis MA1 of the first component A1. A first radial groove RN1 pointing towards the first central axis MA1 of the first component A1 is correspondingly formed between two adjacent first radial rods RS1. Compared to the prior art, each of the first radial grooves RN1 includes a rounded concave groove base NG1 according to the invention, which... Figure 4 and Figure 5 This can be seen particularly clearly in the magnified view. Furthermore, each of the first radial bars RS1 includes a rounded convex first edge KT1. In the illustrated embodiment of the assembly according to the invention, the angle MWI1 between the surface line of the first disk S1 and the first conical axis KA1 of the first disk S1 is approximately 81° in each first disk S1. Therefore, the angle OW1 of the first radial groove RN1 is approximately 18° in each case.

[0080] The second component A2 according to the invention has the exact same structure as the first component A1 described above; therefore, a detailed description is omitted here. The second component A2 according to the invention is parallel to but opposite to the first component A1 (see...). Figure 3 ).

[0081] exist Figure 5 The enlarged view also shows the radius Ri of the radial groove RN1 at the rounded groove base NG1 and the radius Ra of the radial rod RS2 at the rounded edge KT2, wherein the radius Ri of the radial groove RN1 is greater than the radius Ra of the radial rod RS2 at the rounded edge KT2. Furthermore, it can be seen in this figure that, in an embodiment according to the invention, the grinding gap MS near the radial rod edge KT2 is smaller than the grinding gap MS formed along the surface line or side of the disk S. This effectively prevents excessively large particles or entire grains from passing through the grinding gap near the rounded edge.

[0082] Component A of the present invention is exactly the same as component A1 of the present invention, but... Figure 6 Component A of the present invention is shown separately again in the figure.

[0083] Figure 7 A component according to the invention is shown, which is substantially the same as described above. Figure 6 Device A and Figure 3 The device A1 is exactly the same. Therefore, only the device A1 described below is similar to the one described below. Figure 3 and Figure 6Differences in implementation methods. For example, according to the present invention Figure 7 Component A has a first end segment F1 (shown in shaded line) at a first end E1. The first end segment F1 has a cylindrical shape and is made of a solid material. The central axis MF1 of the first end segment F1 is arranged coaxially with the central axis MA of component A. In the example shown, the first end segment F1 is substantially connected to the disk SR1 of component A, and component A is arranged adjacent to the first end segment F1. However, the invention is not limited thereto, and a second end segment F2 may alternatively or additionally be included at a second end E2 of component A. Figure 7 (Not shown in the diagram). The length (=thickness) of the first end segment F1, measured in the direction of the central axis MA of component A, is, for example, 5 mm. The described arrangement of the first end segment F1 and / or the second end segment F2 advantageously increases the mechanical stability of the component according to the invention at one or both ends of component A according to the invention.

Claims

1. A component (A) comprising or composed of a plurality of disks (S); in, Each of the disks (S) comprises a truncated conical, double conical, or double-truncated conical shape; In each of the disks (S), the angle (MWI) between the surface line of the disk (S) and the conical axis (KA) of the disk (S) is >30° and ≤82.5°. The disks (S) are stacked along the central axis (MA) of the component (A); The conical axis (KA) of the disk (S) is configured to be parallel to or coaxial with the central axis (MA) of the assembly (A). The component (A) includes a plurality of radial grooves (RN) pointing toward the central axis (MA) of the component (A). The component (A) includes a plurality of radial rods (RS) that point away from the central axis (MA) of the component (A). Its features are, Each of the radial grooves (RN) includes a rounded groove base (NG); and Each of the radial bars (RS) includes a rounded edge (KT).

2. The component (A) according to claim 1, wherein, In each of the disks (S), the angle (MWI) between the surface line of the disk (S) and the conical axis (KA) of the disk (S) is 40° to 75°.

3. The component (A) according to claim 1, wherein, The radial groove (RN) is oriented perpendicular to the central axis (MA) of the component (A); and / or The radial rod (RS) is directed perpendicularly away from the central axis (MA) of the component (A).

4. Component (A) according to any one of claims 1 to 3, wherein, The radius (Ri) of the radial groove (RN) at the rounded groove base (NG) is greater than the radius (Ra) of the radial rod (RS) at the rounded edge (KT) in all cases.

5. Component (A) according to any one of claims 1 to 3, wherein, The diameter of the disk (S) is 50 mm to 500 mm; and / or The thickness of the disk (S) is 40 mm to 200 mm.

6. The component (A) according to claim 5, wherein, The diameter of the disk (S) is 100 mm to 400 mm.

7. The component (A) according to claim 5, wherein, The thickness of the disk (S) is 50 mm to 80 mm.

8. Component (A) according to any one of claims 1 to 3, wherein, The radius (Ri) of the radial groove (RN) at the rounded groove base (NG) is 0.5 mm to 25 mm; and / or The radius (Ra) of the radial rod (RS) at the rounded edge (KT) is determined according to the following first equation (GL1): Ra = Ri – 2 MS + RT (GL1) Wherein, Ra = radius (Ra) of the radial rod (RS) at the rounded edge (KT), in mm; Ri = radius (Ri) of the radial groove (RN) at the base (NG) of the rounded groove, in mm; MS = grinding gap, in mm; RT = concentricity tolerance, in mm; and Wherein, the grinding gap (MS) is 0.10 mm to 1.40 mm; and The concentricity tolerance (RT) is 0.05 mm to 0.30 mm.

9. The component (A) according to claim 8, wherein, The radius (Ri) of the radial groove (RN) at the rounded groove base (NG) is from 1 mm to 20 mm.

10. The component (A) according to claim 8, wherein, The radius (Ri) of the radial groove (RN) at the rounded groove base (NG) is 2 mm to 10 mm.

11. The component (A) according to claim 8, wherein, The grinding gap (MS) is 0.10 mm to 0.80 mm.

12. The component (A) according to claim 8, wherein, The grinding gap (MS) is 0.10 mm to 0.50 mm.

13. The component (A) according to claim 8, wherein, The grinding gap (MS) is 0.20 mm to 0.60 mm.

14. The component (A) according to claim 8, wherein, The grinding gap (MS) is 0.20 mm to 0.40 mm.

15. The component (A) according to claim 8, wherein, The concentricity tolerance (RT) is 0.10 mm to 0.20 mm.

16. The component (A) according to claim 8, wherein, The concentricity tolerance (RT) is 0.12 mm to 0.18 mm.

17. Component (A) according to any one of claims 1 to 3, wherein, The component (A) includes a first end segment (F1) at a first end (E1). The first end section (F1) is cylindrical or hollow cylindrical; Wherein, the central axis (MF1) of the first end segment (F1) is configured to be parallel to or coaxial with the central axis (MA) of the component (A); and The length of the first end segment (F1) measured in the direction of the central axis (MA) of the component (A) is 1 mm to 100 mm.

18. The component (A) according to claim 17, wherein, The length of the first end segment (F1) measured in the direction of the central axis (MA) of the component (A) is 1 mm to 50 mm.

19. The component (A) according to claim 17, wherein, The length of the first end segment (F1) measured in the direction of the central axis (MA) of the component (A) is 2 mm to 20 mm.

20. The component (A) according to claim 17, wherein, The first end segment (F1) is connected to the disk (SR1) of the component (A) disposed adjacent to the first end segment (F1) by means of press fit, form fit or material fit, or is integral with the disk (SR1).

21. The component (A) according to claim 17, wherein, The component (A) includes a second end segment (F2) at the second end (E2); The second end section (F2) is cylindrical or hollow cylindrical; Wherein, the central axis (MF2) of the second end segment (F2) is configured to be parallel to or coaxial with the central axis (MA) of the component (A); and The second end segment (F2) has a length of 1 mm to 100 mm measured in the direction of the central axis (MA) of the component (A).

22. The component (A) according to claim 21, wherein, The length of the second end segment (F2) measured in the direction of the central axis (MA) of the component (A) is 1 mm to 50 mm.

23. The component (A) according to claim 21, wherein, The length of the second end segment (F2) measured in the direction of the central axis (MA) of the component (A) is 2 mm to 20 mm.

24. The component (A) according to claim 21, wherein, The second end segment (F2) is connected to the disk (SR2) of the component (A) located adjacent to the second end segment (F2) by means of press fit, form fit or material fit, or is integral with the disk (SR1).

25. A milling machine (MW) for a grinding mill, comprising at least: The first roller (WA1) includes a first shaft (W1) and a first assembly (A1). as well as The second roller (WA2) includes a second shaft (W2) and a second assembly (A2); The first shaft (W1) and the first component (A1) are connected to each other or integrated by means of press-fit, form fit or material fit; The second shaft (W2) and the second component (A2) are connected to each other or integrated by press-fit, form fit or material fit; Wherein, the first component (A1) is component (A) according to any one of claims 1 to 24. Wherein, the second component (A2) is component (A) according to any one of claims 1 to 24; The central axis (MA1) of the first component (A1) is set to be parallel to the central axis (MA2) of the second component (A2). Wherein, the radial rod (RS1) of the first component (A1) engages in the radial groove (RN2) of the second component (A2); and The radial rod (RS2) of the second component (A2) engages in the radial groove (RN1) of the first component (A1).

26. The grinder according to claim 25, wherein, The central axis (MA1) of the first component (A1) is configured to be coaxial with the central axis of the first axis (W1); and The central axis (MA2) of the second component (A2) is configured to be coaxial with the central axis of the second axis (W2).

27. The grinder according to claim 25 or 26, wherein, The first axis (W1) and the second axis (W2) are arranged relative to each other such that the central axis of the first axis (W1) and the central axis of the second axis (W2) are arranged parallel to each other; and A gap, referred to as the grinding gap (MS), is provided between the first component (A1) and the second component (A2); and The grinding gap (MS) has a net width of 0.10 mm and 1.40 mm along its length.

28. The grinder according to claim 27, wherein, The net width of the grinding gap (MS) along its length is 0.10 mm and 0.80 mm.

29. The grinder according to claim 27, wherein, The net width of the grinding gap (MS) along its length is 0.10 mm and 0.50 mm.

30. The grinder according to claim 27, wherein, The net width of the grinding gap (MS) along its length is 0.20 mm and 0.60 mm.

31. The grinder according to claim 27, wherein, The net width of the grinding gap (MS) along its length is 0.20 mm and 0.40 mm.

32. The grinder according to claim 25 or 26, wherein, The first roller (WA1) or the first shaft (W1) is rotatably mounted; and The second roller (WA2) or the second shaft (W2) is rotatably mounted; and the first roller (WA1) and the second roller (WA2) are capable of rotating in opposite directions.

33. Use of at least one component (A) according to any one of claims 1 to 24 or an abrasive according to any one of claims 25 to 32 for grinding a material to be ground; in, The material to be ground is plant material or contains plant material.

34. The use according to claim 33, wherein, The plant material is a plant material containing protein.

35. The use according to claim 33, wherein, The material to be ground is selected from the group consisting of: malt, unsprouted grains, rice, corn, millet, chickpeas, soybeans, potatoes, and any mixture thereof.

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