CN212915580U

CN212915580U - Die roller and granulator

Info

Publication number: CN212915580U
Application number: CN202021716692.7U
Authority: CN
Inventors: 汪金保; 葛全; 郭帅
Original assignee: Jiangsu Sanyi Environmental Technology Co ltd
Current assignee: Jiangsu Sanyi Environmental Technology Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-04-09
Anticipated expiration: 2030-08-17

Abstract

The utility model relates to the technical field of biomass fuel processing equipment, in particular to a die roller and a granulator, which comprises an inner ring, a tooth die and a hole die, wherein the tooth die and the hole die are detachably sleeved on the outer wall surface of the inner ring; the tooth dies and the hole dies are sequentially and alternately arranged on the outer wall surface of the inner ring along the axial direction of the inner ring. An object of the utility model is to provide a die cylinder and granulation machine to solve present whole die cylinder and appear breaking the tooth and must change whole die cylinder after wearing and tearing, thereby the die cylinder life-span that brings is not high, problem that manufacturing cost is high.

Description

Die roller and granulator

Technical Field

The utility model belongs to the technical field of biomass fuel processing equipment technique and specifically relates to a die roller and granulation machine are related to.

Background

With the development of science and technology, the utilization of biomass energy is more and more extensive, biomass mainly is plant carbon resources such as straw, rice hull, bark, waste wood and the like, and the solid forming fuel has the advantages of environmental protection, cleanness and reproducibility compared with fossil fuels such as coal and the like. The biomass granulator can solidify and compress the collected biomass material into particles, so that the biomass material is convenient to transport, store, burn and the like.

The core component of the biomass granulator is a die roll, generally, the prior art adopts an integral die roll (see fig. 1), a large number of forming holes and forming teeth are distributed on the integral die roll, and if the integral die roll is cracked or broken due to local abrasion in the production process, the whole die roll is scrapped, the whole die roll needs to be replaced, the service life of the die roll is seriously reduced, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a die cylinder and granulation machine to solve present whole die cylinder and appear breaking the tooth and must change whole die cylinder after wearing and tearing, thereby the die cylinder life-span that brings is not high, problem that manufacturing cost is high.

In order to alleviate above-mentioned technical problem, the utility model provides a technical scheme lies in:

in a first aspect, the utility model provides a die roller, which comprises an inner ring, a tooth die and a hole die, wherein the tooth die and the hole die are detachably sleeved on the outer wall surface of the inner ring;

the tooth dies and the hole dies are sequentially and alternately arranged on the outer wall surface of the inner ring along the axial direction of the inner ring.

Furthermore, the outer wall surface of the inner ring is provided with a plurality of first planes and convex arc surfaces which extend along the axial direction of the inner ring, and the first planes and the convex arc surfaces are sequentially and alternately arranged on the outer wall surface of the inner ring along the circumferential direction of the inner ring;

the inner wall surface of the tooth die is provided with a plurality of second planes and first concave arc surfaces which extend along the axial direction of the tooth die, and the second planes and the concave arc surfaces are sequentially and alternately arranged on the inner wall surface of the tooth die along the circumferential direction of the tooth die;

the second plane is attached to the first plane, and the first concave arc surface is attached to the convex arc surface.

the inner wall surface of the hole die is provided with a plurality of third plane and a plurality of second concave arc surfaces which extend along the axial direction of the hole die, and the third plane and the second concave arc surfaces are sequentially and alternately arranged on the inner wall surface of the hole die along the circumferential direction of the hole die;

the third plane is attached to the first plane, and the second concave arc is attached to the convex arc surface.

Furthermore, the hole die is provided with a plurality of first through holes penetrating through the wall thickness of the hole die, and the first through holes are distributed at intervals along the circumferential direction of the hole die;

the inner ring is provided with a plurality of second through holes penetrating through the wall thickness of the inner ring, and the second through holes are distributed at intervals along the circumferential direction of the inner ring;

the first through hole is communicated with the second through hole, the second through hole is communicated with the discharging cavity, and the discharging cavity is surrounded by the inner ring.

Furthermore, a plurality of convex teeth distributed at intervals along the circumferential direction of the tooth die are arranged on the outer wall surface of the tooth die.

Furthermore, the inner ring structure further comprises two pressing rings, and the two pressing rings are sleeved at two ends of the inner ring.

Furthermore, the device also comprises an input shaft and an output shaft, wherein the input shaft is connected with one end of the inner ring through a bolt fastener, and the output shaft is connected with the other end of the inner ring through a bolt fastener.

Furthermore, the inner ring further comprises a key, first key grooves are formed in two end faces of the inner ring along the radial direction of the inner ring, second key grooves are formed in the end faces, connected with the inner ring, of the output shaft and the input shaft, the second key grooves are opposite to the first key grooves, and the key is placed in the first key grooves and the second key grooves.

Furthermore, a discharge hole is formed in one end, deviating from the inner ring, of the output shaft, and is communicated with a discharge cavity, and the discharge cavity is defined by the inner ring.

In a second aspect, the present invention also provides a granulation machine, which comprises two die rollers, two the die rollers are mutually engaged, one the tooth mold of the die roller is extruded with the hole mold cooperation of another die roller.

The utility model discloses beneficial effect that can realize:

the utility model provides a mold roller, because this mold roller includes inner circle, tooth mould and hole mould along the axial of inner circle detachably suit in the outer wall of inner circle in proper order in turn, in the use, if tooth mould or hole mould or inner circle local wear appears and lead to the fracture, only need replace the part that damages can, need not replace whole mold roller, reduced manufacturing cost, improved mold roller's life.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly introduced below, and it is obvious that the drawings in the following description are several embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective view of a prior art solid mold roll;

FIG. 2 is a cross-sectional view of a mold roll provided by the present invention;

fig. 3 is a perspective view of an inner ring provided by the present invention;

FIG. 4 is a cross-sectional view of another mold roll provided by the present invention;

fig. 5 is a perspective view of another inner ring provided by the present invention;

fig. 6 is a perspective view of the tooth mold provided by the present invention;

fig. 7 is a perspective view of a hole mold provided by the present invention;

fig. 8 is a perspective view of the two die rollers provided by the present invention after being engaged;

FIG. 9 is a front view of the two mold rolls provided by the present invention after mating;

fig. 10 is a top view of the two die cylinders provided by the present invention after mating;

FIG. 11 is a cross-sectional view taken along line A-A of FIG. 10;

fig. 12 is a partial enlarged view at B in fig. 11.

Icon: 1-inner ring; 11-a first plane; 12-convex arc surface; 13-a discharge cavity; 14-a second via; 15-a first keyway; 2-tooth mold; 21-a second plane; 22-a first concave arc surface; 23-a lobe; 3-hole die; 31-a third plane; 32-a second concave arc surface; 33-a first via; 4-pressing a ring; 5-an input shaft; 6-an output shaft; 61-a discharge port; a 7-bond.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "physical quantity" in the formula, unless otherwise noted, is understood to mean a basic quantity of a basic unit of international system of units, or a derived quantity derived from a basic quantity by a mathematical operation such as multiplication, division, differentiation, or integration.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

Referring to fig. 2 and 4, the die roller comprises an inner ring 1, a tooth die and a hole die 3, wherein the tooth die 2 and the hole die 3 are detachably sleeved on the outer wall surface of the inner ring 1; the tooth dies 2 and the hole dies 3 are sequentially and alternately arranged on the outer wall surface of the inner ring 1 along the axial direction of the inner ring 1.

The utility model discloses following beneficial effect has been brought:

referring to fig. 1, a large number of forming holes and forming teeth are distributed on the conventional integral die roll, and if the integral die roll is cracked or broken due to local abrasion in the production process, the whole die roll is scrapped, the whole die roll needs to be replaced, the service life of the die roll is seriously reduced, and the production cost is increased.

Compare in whole mould roller, the utility model provides a mould roller includes inner circle 1, tooth mould 2 and hole mould 3, and tooth mould 2 and hole mould 3 along the axial of inner circle 1 detachably suit in the outer wall of inner circle 1 in proper order in turn, in the use, if tooth mould 2 or hole mould 3 or inner circle 1 local wear appears and lead to the fracture, only need the replacement damage the part can, need not replace whole mould roller, reduced manufacturing cost, improved the life of mould roller.

Further, please refer to fig. 2 and 4, the number of the tooth molds 2 and the hole molds 3 may be multiple, the tooth molds 2 and the hole molds 3 are sequentially and alternately arranged on the outer wall surface of the inner ring 1, the tooth molds 2 and the hole molds 3 are closely adjacent to each other, so that a gap is avoided, and the production efficiency of the multiple tooth molds 2 and the multiple hole molds 3 can be improved in the production process of the granulation machine.

The concrete matching mode between the inner ring 1 and the tooth die 2 and the hole die 3 is explained below;

referring to fig. 3 and 5, the outer wall surface of the inner ring 1 is provided with a plurality of first planes 11 and convex arc surfaces 12 extending along the axial direction thereof, and the first planes 11 and the convex arc surfaces 12 are sequentially and alternately arranged on the outer wall surface of the inner ring 1 along the circumferential direction of the inner ring 1; specifically, the number of the first plane 11 and the number of the convex arc surfaces 12 can be set to six, so that the convex edges on the outer wall surface of the inner ring 1 are avoided, and the stress on the outer wall surface of the inner ring 1 is uniform.

Correspondingly, for the matching of the tooth mold 2 and the inner ring 1, please refer to fig. 6, the inner wall surface of the tooth mold 2 is provided with six second planes 21 extending along the axial direction thereof and six first concave arc surfaces 22, wherein the second planes 21 and the first concave arc surfaces 22 are sequentially and alternately arranged on the inner wall surface of the tooth mold 2 along the circumferential direction of the tooth mold 2; the convex edges on the inner wall surface of the tooth die 2 are avoided, so that the stress on the inner wall surface of the tooth die 2 is uniform.

Further, the first planes 11 have the same size and the same corresponding central angle, and the convex arc surfaces 12 have the same radius of curvature and the same corresponding central angle, that is, the edge of the cross section of the outer wall surface of the inner ring 1 can be regarded as a shape after being chamfered by a regular hexagon; the sizes of the second planes 21 are the same, the corresponding central angles are the same as the central angle corresponding to the first plane 11, the curvature radii of the first concave arc surface 22 and the convex arc surface 12 are the same, the corresponding central angles are also the same, the second planes 21 are completely attached to the first plane 11, the first concave arc surface 22 is completely attached to the convex arc surface 12, relative rotation between the inner ring 1 and the tooth die 2 is prevented, and gaps between the inner ring 1 and the tooth die 2 can also be prevented; in addition, the tooth die 2 can be conveniently mounted on the inner ring 1 at a plurality of angles, the tooth die 2 and the inner ring 1 do not need to be adjusted to a certain specific relative angle and then mounted, and the working hours for mounting after disassembly and replacement can be saved.

Correspondingly, for the matching of the hole die 3 and the inner ring 1, please refer to fig. 7, the inner wall surface of the hole die 3 is provided with six third planes 31 extending along the axial direction thereof and six second concave arc surfaces 32, wherein the third planes 31 and the second concave arc surfaces 32 are sequentially and alternately arranged on the inner wall surface of the hole die 3 along the circumferential direction of the hole die 3; the convex edges on the inner wall surface of the hole die 3 are avoided, so that the stress on the inner wall surface of the hole die 3 is uniform.

Further, the third planes 31 have the same size, the corresponding central angles are the same as the central angles corresponding to the first plane 11, the second concave arc surfaces 32 have the same curvature radius as the convex arc surfaces 12, and the corresponding central angles are also the same, the third planes 31 are completely attached to the first plane 11, the second concave arc surfaces 32 are completely attached to the convex arc surfaces 12, so that relative rotation between the inner ring 1 and the hole die 3 is prevented, and gaps between the inner ring 1 and the tooth die 2 can also be prevented; in a similar way, the hole die 3 can be conveniently arranged on the inner ring 1 at a plurality of angles, the hole die 3 and the inner ring 1 do not need to be adjusted to a certain specific relative angle to be arranged, and the working hours for dismounting and replacing and then arranging can be saved.

Through the matching mode, the inner ring 1, the tooth die 2 and the hole die 3 can realize universal standardization, and are convenient to replace and manufacture.

In an alternative to this embodiment, it is preferable that,

referring to fig. 7, the hole mold 3 is provided with a plurality of first through holes 33 penetrating the wall thickness of the hole mold 3, and the plurality of first through holes 33 are distributed at intervals along the circumferential direction of the hole mold 3; referring to fig. 2-5, the inner ring 1 is provided with a plurality of second through holes 14 penetrating the wall thickness of the inner ring 1, and the plurality of second through holes 14 are distributed at intervals along the circumferential direction of the inner ring 1.

Referring to the die cylinder on the right side in fig. 11 and 12, the first through hole 33 is communicated with the second through hole 14, the second through hole 14 is communicated with the discharging cavity 13, and the discharging cavity 13 is enclosed by the inner ring 1; the biomass particles pass from the first through opening 33 through the second through opening 14 and then into the outlet chamber 13.

Furthermore, the diameter of the second through hole 14 should be not smaller than that of the first through hole 33, so that the biomass particles can smoothly enter the discharging cavity 13 through the second through hole 14 after coming out of the first through hole 33.

Furthermore, according to different biomass raw materials, the first through holes 33 can be arranged as a single row of holes, a double row of holes, or a triple row of holes, etc. along the axial direction of the hole die 3, and correspondingly, the second through holes 14 can be arranged as a single row of holes, a double row of holes, or a triple row of holes, etc. along the axial direction of the inner ring 1, so that the efficiency of the granulator is maximized.

In an alternative to this embodiment, it is preferable that,

referring to fig. 6, a plurality of convex teeth 23 are arranged on the outer wall surface of the tooth die 2 at intervals along the circumferential direction, and the convex teeth 23 are matched with the first through holes 33 to press the biomass raw material into the first through holes 33 and further enter the discharging cavity 13 through the second through holes 14.

In an alternative to this embodiment, it is preferable that,

referring to fig. 2 and 4, the die roller further includes two pressing rings 4, the two pressing rings 4 are sleeved at two ends of the inner ring 1, and the pressing rings 4 are used for preventing the tooth die 2 and the hole die 3 from sliding on the outer wall surface of the inner ring 1 along the axial direction of the inner ring 1.

Further, for the matching of the pressing ring 4 and the inner ring 1, the inner wall surface of the pressing ring 4 may be provided with a plurality of fourth planes and third concave arc surfaces extending along the axial direction thereof, specifically, the number of the fourth planes and the number of the third concave arc surfaces may be set to six, wherein the fourth planes and the third concave arc surfaces are sequentially and alternately arranged on the inner wall surface of the pressing ring 4 along the circumferential direction of the pressing ring 4; the convex edge on the inner wall surface of the pressing ring 4 is avoided, so that the stress on the inner wall surface of the pressing ring 4 is uniform.

Further, the sizes of the fourth planes are the same, the corresponding central angles are the same as the central angle corresponding to the first plane 11, the curvature radii of the third concave arc surface and the convex arc surface 12 are the same, the corresponding central angles are also the same, the fourth plane is completely attached to the first plane 11, and the third concave arc surface and the convex arc surface 12 are completely attached to prevent the inner ring 1 and the clamping ring 4 from rotating relatively.

In an alternative to this embodiment, it is preferable that,

referring to fig. 2 and 4, the die roller further includes an input shaft 5 and an output shaft 6, the input shaft 5 is connected with one end of the inner ring 1 through a threaded fastener, so that the input shaft 5 can drive the inner ring 1 to rotate together, the output shaft 6 is connected with the other end of the inner ring 1 through a threaded fastener, and after the input shaft 5 drives the inner ring 1 to rotate, the inner ring 1 can drive the output shaft 6 to rotate.

Further, the input shaft 5 and the output shaft 6 are respectively in surface contact with the two pressing rings 4, and the pressure between the input shaft 5 and the pressing rings 4 and the pressure between the output shaft 6 and the input shaft 5 can be adjusted through the threaded fasteners, so that the two pressing rings 4 can better press the tooth die 2 and the hole die 3 by utilizing the pressure, and the tooth die 2 and the hole die 3 are prevented from sliding on the outer wall surface of the inner ring 1 along the axial direction of the inner ring 1.

Further, threaded fastener can set up to hexagon bolt, and hexagon bolt's quantity sets up to a plurality ofly, and a plurality of hexagon bolts make input shaft 5 and output shaft 6 and inner circle 1 between be connected more firmly along the circumference evenly distributed of 5 terminal surfaces of input shaft and 6 terminal surfaces of output shaft.

In an alternative to this embodiment, it is preferable that,

referring to fig. 9, the mold roller is provided with a key 7, referring to fig. 3 and 5, two end faces of the inner ring 1 are provided with a first key groove 15 along the radial direction thereof, the end faces of the input shaft 5 and the output shaft 6 connected with the inner ring 1 are provided with a second key groove opposite to the first key groove 15, wherein the key 7 can be placed in the first key groove 15 and the second key groove, and the circumferential load when the input shaft 5 and the output shaft 6 rotate synchronously with the inner ring 1 can be transmitted by the key 7, so that the circumferential relative rotation between the input shaft 5 and the output shaft 6 and the inner ring 1 is prevented.

Further, a plurality of first key grooves 15 can be arranged, the first key grooves 15 are arranged along the circumferential direction of two end faces of the inner ring 1 at intervals, the number of the second key grooves is the same as that of the first key grooves 15, the second key grooves are arranged at positions, opposite to the first key grooves 15, of the input shaft 5 and the output shaft 6, the number of the keys 7 is the same as that of the first key grooves 15 and that of the second key grooves, the strength of the keys 7 is larger, load transmission is more uniform, circumferential loads can be better transmitted when the input shaft 5 and the output shaft 6 rotate synchronously with the inner ring 1, and circumferential relative rotation between the input shaft 5 and the inner ring 1 and between the output shaft 6 and the inner ring 1 can be prevented.

In an alternative to this embodiment, it is preferable that,

please refer to fig. 2 and fig. 4, a discharge port 61 is arranged at one end of the output shaft 6 departing from the inner ring 1, the discharge port 61 is communicated with the discharge cavity 13, and when biomass particles are formed and enter the discharge cavity 13, the biomass particles are discharged through the discharge port 61 on the output shaft 6.

Example two

The embodiment provides a granulator, please refer to fig. 8, fig. 9, fig. 10, fig. 11 and fig. 12, which includes two mold rollers as described in the first embodiment, the two mold rollers are engaged with each other, the tooth mold 2 of one mold roller is matched with the hole mold 3 of the other mold roller for extrusion, and the convex teeth 23 on the tooth mold 2 are matched with the first through holes 33 on the hole mold 3 for extrusion of biomass raw material into granules.

The specific working process of the granulation machine is explained as follows:

the biomass raw material is unloaded between the two die rollers, the two input shafts 5 respectively drive the two die rollers to synchronously extrude and rotate, the rotation direction refers to fig. 9, the biomass raw material is extruded into particles through the matching of the convex teeth 23 and the first through holes 33, then the particles enter the discharging cavity 13 through the second through holes 14 on the inner ring 1, and finally the particles are discharged from the discharging hole 61 of the output shaft 6.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A die cylinder is characterized in that a die cylinder body is provided with a die cylinder body,

the tooth die comprises an inner ring (1), a tooth die (2) and a hole die (3), wherein the tooth die (2) and the hole die (3) are detachably sleeved on the outer wall surface of the inner ring (1);

the tooth die (2) and the hole die (3) are sequentially and alternately arranged on the outer wall surface of the inner ring (1) along the axial direction of the inner ring (1).

2. The die cylinder of claim 1,

the outer wall surface of the inner ring (1) is provided with a plurality of first planes (11) and convex arc surfaces (12) which extend along the axial direction of the inner ring, and the first planes (11) and the convex arc surfaces (12) are sequentially and alternately arranged on the outer wall surface of the inner ring (1) along the circumferential direction of the inner ring (1);

the inner wall surface of the tooth die (2) is provided with a plurality of second planes (21) and first concave arc surfaces (22) which extend along the axial direction of the tooth die, and the second planes (21) and the first concave arc surfaces (22) are sequentially and alternately arranged on the inner wall surface of the tooth die (2) along the circumferential direction of the tooth die (2);

the second plane (21) is attached to the first plane (11), and the first concave arc surface (22) is attached to the convex arc surface (12).

3. The die cylinder of claim 1,

the inner wall surface of the hole die (3) is provided with a plurality of third planes (31) and second concave arc surfaces (32) which extend along the axial direction of the hole die, and the third planes (31) and the second concave arc surfaces (32) are sequentially and alternately arranged on the inner wall surface of the hole die (3) along the circumferential direction of the hole die (3);

the third plane (31) is attached to the first plane (11), and the second concave arc surface (32) is attached to the convex arc surface (12).

4. The die cylinder of claim 3,

the hole die (3) is provided with a plurality of first through holes (33) penetrating through the wall thickness of the hole die (3), and the first through holes (33) are distributed at intervals along the circumferential direction of the hole die (3);

the inner ring (1) is provided with a plurality of second through holes (14) penetrating through the wall thickness of the inner ring (1), and the second through holes (14) are distributed at intervals along the circumferential direction of the inner ring (1);

the first through hole (33) is communicated with the second through hole (14), the second through hole (14) is communicated with the discharging cavity (13), and the discharging cavity (13) is surrounded by the inner ring (1).

5. The die cylinder of claim 4,

the outer wall surface of the tooth die (2) is provided with a plurality of convex teeth (23) which are distributed at intervals along the circumferential direction.

6. The die cylinder of claim 1,

the inner ring is characterized by further comprising two pressing rings (4), wherein the two pressing rings (4) are sleeved at two ends of the inner ring (1).

7. The die cylinder of claim 1,

the inner ring is characterized by further comprising an input shaft (5) and an output shaft (6), wherein the input shaft (5) is connected with one end of the inner ring (1) through a threaded fastener, and the output shaft (6) is connected with the other end of the inner ring (1) through a threaded fastener.

8. The die cylinder of claim 7,

the novel gear transmission mechanism is characterized by further comprising a key (7), wherein first key grooves (15) are formed in two end faces of the inner ring (1) along the radial direction of the inner ring, second key grooves are formed in the end faces, connected with the inner ring (1), of the input shaft (5) and the output shaft (6) respectively, the second key grooves are opposite to the first key grooves (15), and the key (7) is placed in the first key grooves (15) and the second key grooves.

9. The die cylinder of claim 7,

one end, deviating from the inner ring (1), of the output shaft (6) is provided with a discharge hole (61), the discharge hole (61) is communicated with a discharge cavity (13), and the discharge cavity (13) is enclosed by the inner ring (1).

10. A granulation machine is characterized in that a granulation machine is provided,

comprising two cylinders according to any one of claims 1-9, which are mutually engaged, the tooth dies (2) of one cylinder being co-extruded with the hole dies (3) of the other cylinder.