Conical pulping machine rotor and stator for long fiber pulping

Abstract

The utility model relates to the technical field of papermaking equipment, in particular to a cone-shaped pulping machine rotor and stator for long fiber pulping, which comprises a cone-shaped rotor body and a cone-shaped stator body which are in clearance fit with each other. A partition plate perpendicular to the central axis of the rotor body is arranged in the rotor body, a shaft hole penetrates through the center of the partition plate, a fixing hole set penetrates through the partition plate outside the shaft hole, and rotor grinding teeth are arranged on the outer wall of the rotor body. A fixed pressing plate perpendicular to the central axis of the stator body is arranged on the outer wall of the stator body, and stator grinding teeth in clearance fit with the rotor grinding teeth are arranged on the inner wall of the stator body. The conical pulping machine rotor and stator for long fiber pulping can be suitable for materials containing long fibers.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking equipment, in particular to a rotor and stator of a conical refiner used for long fiber refining. Background Art

[0002] A refiner is a device used to grind fixed materials in a liquid into a slurry. It is widely used in industries such as food processing, pulp and papermaking, and pharmaceuticals. The refiner uses mechanical force to grind and stir materials into a fine slurry; therefore, its core component is the grinding tool.

[0003] At present, the grinding tool of the refiner consists of a rotor and a stator, and the rotor and the stator are flat and conical with opposite tooth surfaces. However, the conventional refiner rotor and stator still have the following shortcomings:

[0004] Due to the small spacing between the tooth surfaces and the racks, long fibers cannot enter the grinding tool smoothly, causing the grinding tool to be blocked, which greatly reduces the efficiency of grinding. Utility Model Content

[0005] In order to solve the technical problems existing in the background technology, the utility model provides a conical refiner rotor and stator for long fiber refining, which can be applicable to materials containing long fibers.

[0006] The technical solution adopted by the present invention is:

[0007] A conical refiner rotor and stator for long fiber refining comprises a rotor body and a stator body which are clearance-matched with each other.

[0008] The rotor body is configured to be conical, with a partition perpendicular to its central axis provided inside the rotor body, an axial hole provided through the center of the partition, a fixing hole group provided through the partition outside the axial hole, and rotor grinding teeth provided on the outer wall of the rotor body.

[0009] The stator body is configured as a cone and is sleeved on the rotor body with a gap. A fixed pressure plate perpendicular to its central axis is provided on the outer wall of the stator body, and stator grinding teeth that match the rotor grinding teeth gap are provided on the inner wall of the stator body.

[0010] Furthermore, the rotor body is provided with a lifting screw hole, and the lifting screw hole is used to screw the lifting ring.

[0011] Furthermore, the fixing hole groups are arranged in a plurality of groups in a circular array along the central axis of the shaft hole and are transmission-connected to the driving component.

[0012] Furthermore, a mounting lug is protruding from the outer wall of the stator body on one side of the fixed pressure plate.

[0013] Furthermore, the edge of the fixed pressure plate is provided with a concave positioning groove and is fixedly connected to the refiner.

[0014] Furthermore, the rotor grinding teeth are provided in a plurality of groups in a circular array along the central axis of the rotor body, and each group of rotor grinding teeth includes:

[0015] The first external grinding teeth, the second external grinding teeth, and the third external grinding teeth are parallel to each other. The first external grinding teeth are provided with a guide grinding tooth extending toward the conical top of the rotor body. The second external grinding teeth and the third external grinding teeth are respectively provided with multiple teeth and are arranged on one side of the first external grinding teeth. The second external grinding teeth are arranged in the interval between the third external grinding teeth.

[0016] Furthermore, the stator grinding teeth are provided in a plurality of groups in a circular array along the central axis of the stator body, and each group of stator grinding teeth includes:

[0017] The first internal grinding teeth, the second internal grinding teeth and the third internal grinding teeth are parallel to each other. The first internal grinding teeth are provided in multiple lines and extend from the top of the stator body cone. The second internal grinding teeth and the third internal grinding teeth are respectively provided in multiple lines and are spaced apart from the multiple first internal grinding teeth.

[0018] Furthermore, the first external grinding teeth transition smoothly with the guide grinding teeth.

[0019] Furthermore, the rotor grinding teeth are configured as straight bars; and the stator grinding teeth are configured as curved bars that are concave facing the feed end.

[0020] Furthermore, on the side close to the conical top of the rotor body: the length of the second external grinding teeth is smaller than the first external grinding teeth and / or the third external grinding teeth on its adjacent two sides.

[0021] On the side close to the top of the stator body cone: the length of the third internal grinding tooth is smaller than the first internal grinding teeth and / or second internal grinding teeth on its adjacent two sides, and the side of the third internal grinding tooth close to the top of the stator body cone is provided with a chamfer.

[0022] The beneficial effects of the conical refiner rotor and stator for long fiber refining of the utility model are:

[0023] 1. The chamfer on the third inner grinding tooth and the second outer grinding tooth are used to grind long fibers.

[0024] 2. Prevent long fiber clogging by guiding grinding teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall cross-section of a rotor and stator of a conical refiner for long fiber refining provided by an example of the present utility model;

[0026] Figure 2This is a schematic diagram of a rotor body of a conical refiner stator for long fiber refining provided by an example of the present utility model;

[0027] Figure 3 This is a schematic diagram of a stator body of a conical refiner rotor for long fiber refining provided by an example of the present utility model;

[0028] Figure 4 This is an example of the utility model Figure 2 The overall stereoscopic diagram of A-A' in the figure;

[0029] Figure 5 This is an example of the utility model Figure 3 Overall three-dimensional schematic diagram of B-B'.

[0030] In the picture:

[0031] 10. Rotor body, 11. Partition, 12. Shaft hole, 13. Fixing hole group, 14. Lifting screw hole, 15. Rotor grinding gear

[0032] 151, first external grinding tooth, 152, guide grinding tooth, 153, second external grinding tooth, 154, third external grinding tooth,

[0033] 20. Stator body, 21. Fixed pressure plate, 22. Mounting lugs, 23. Stator grinding teeth,

[0034] 231, first internal grinding tooth, 232, second internal grinding tooth, 233, third internal grinding tooth. DETAILED DESCRIPTION

[0035] In order to more clearly and specifically illustrate the specific implementation objectives and implementation methods of the present utility model, the following is a complete description of the technical solution of the present utility model. The described embodiments are only part of the embodiments of the present utility model, not all of them. Without inventive work, all other embodiments based on the embodiments described in the present utility model fall within the scope of protection of the present utility model.

[0036] The utility model discloses a conical refiner rotor and stator for long fiber refining, such as Figure 1 As shown, it includes: a rotor body 10 and a stator body 20 that are clearance-fitted with each other.

[0037] like Figure 2 、 Figure 4As shown, the rotor body 10 is configured to be a conical cylinder with a taper of 40°, and a partition 11 perpendicular to its central axis is provided inside the rotor body 10. The partition 11 is penetrated by an axial hole 12 which is coaxial with the rotor body 10, and a fixing hole group 13 is penetrated by the partition 11 outside the axial hole 12. The fixing hole group 13 is distributed in a circular array along the central axis of the axial hole 12 in multiple groups and is transmission-connected to the driving component. The rotor body 10 is provided with a lifting screw hole 14, and the lifting screw hole 14 is used to screw a lifting ring, and a rotor grinding tooth 15 is provided on the outer wall of the rotor body 10.

[0038] The rotor grinding teeth 15 are arranged in six groups in a circular array along the central axis of the rotor body 10. Each group of rotor grinding teeth 15 is arranged in a straight line shape and includes:

[0039] The first external grinding teeth 151, the second external grinding teeth 153, and the third external grinding teeth 154 are parallel to each other. The first external grinding teeth 151 are extended to the conical top of the rotor body 10 to provide a guide grinding tooth 152. The guide grinding tooth 152 is arranged in a trapezoidal strip shape and gradually widens toward the conical top of the rotor body 10. The guide grinding tooth 152 and the first external grinding tooth 151 have a smooth transition. The second external grinding teeth 153 are provided with five, and the third external grinding teeth 154 are provided with seven. The second external grinding teeth 153 and the third external grinding teeth 154 are provided with seven. The grinding teeth 154 are arranged on one side of the first external grinding teeth 151, and the second external grinding teeth 153 are arranged at the interval of the third external grinding teeth 154. Specifically, the first external grinding teeth 151 are the first, the second external grinding teeth 153 are the second, third, fifth, sixth, and eighth, and the third external grinding teeth 154 are the fourth, seventh, ninth, tenth, eleventh, twelfth, and thirteenth; on the side close to the conical top of the rotor body 10: the length of the second external grinding teeth 153 is shorter than the first external grinding teeth 151 and / or the third external grinding teeth 154 on its adjacent two sides.

[0040] like Figure 3 、 Figure 5 As shown, the stator body 20 is configured as a conical cylinder with a taper of 40° and is gap-mounted outside the rotor body 10. A fixed pressure plate 21 perpendicular to its central axis is provided on the outer wall of the stator body 20. The edge of the fixed pressure plate 21 is provided with an inwardly concave positioning groove and is fixedly connected to the pulper. A mounting ear 22 is protruding from the outer wall of the stator body 20 on one side of the fixed pressure plate 21, and a stator grinding tooth 23 that is gap-matched with the rotor grinding tooth 15 is provided on the inner wall of the stator body 20.

[0041] The stator grinding teeth 23 are arranged in six groups in a circular array along the central axis of the stator body 20. Each group of stator grinding teeth 23 is arranged in a curved strip shape concave toward the feed end, including:

[0042] The first internal grinding teeth 231, the second internal grinding teeth 232, and the third internal grinding teeth 233 are parallel to each other. Three first internal grinding teeth 231 are provided and extend from the conical top of the stator body 20. Seven second internal grinding teeth 232 are provided. Six third internal grinding teeth 233 are provided and are spaced apart from the multiple first internal grinding teeth 231. Specifically, the first internal grinding teeth 231 are the first, third, and fifth, the second internal grinding teeth 232 are the eighth, tenth, twelfth, thirteenth, fourteenth, fifteenth, and sixteenth, and the third internal grinding teeth 233 are the second, fourth, sixth, seventh, ninth, and eleventh. On the side close to the conical top of the stator body 20: the length of the third internal grinding teeth 233 is shorter than the first internal grinding teeth 231 and / or the second internal grinding teeth 232 on its adjacent two sides, and the side of the third internal grinding teeth 233 close to the conical top of the stator body 20 is provided with a chamfer.

[0043] The first external grinding teeth 151, the second external grinding teeth 153, and the third external grinding teeth 154 in the rotor grinding teeth 15, and the first internal grinding teeth 231, the second internal grinding teeth 232, and the third internal grinding teeth 233 in the stator grinding teeth 23 have a tooth width of 4 mm and a tooth spacing of 11 mm; the tooth width of the guide grinding teeth 152 is 4-6 mm.

[0044] In a top view projection, the interval angle of each set of rotor grinding teeth 15 is ≤2.7°; the interval angle of each set of stator grinding teeth 23 is ≤2°.

[0045] In summary, the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the contents of the specification. All equivalent changes and modifications of the shape, structure, characteristics and spirit described in the scope of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A conical refiner rotor and stator for long fiber refining, comprising: The rotor body (10) and the stator body (20) are clearance-matched with each other, and are characterized by: The rotor body (10) is configured in a conical cylindrical shape. A partition (11) perpendicular to the central axis of the rotor body (10) is provided inside the rotor body (10). An axial hole (12) is provided through the center of the partition (11). A fixing hole group (13) is provided through the partition (11) outside the axial hole (12). Rotor grinding teeth (15) are provided on the outer wall of the rotor body (10). The stator body (20) is configured to be conical and sleeved outside the rotor body (10) with a gap. A fixed pressure plate (21) perpendicular to the central axis of the stator body (20) is provided on the outer wall of the stator body (20). Stator grinding teeth (23) that are gap-matched with the rotor grinding teeth (15) are provided on the inner wall of the stator body (20).

2. The conical refiner rotor and stator for long fiber refining according to claim 1, characterized in that: The rotor body (10) is provided with a lifting screw hole (14), and the lifting screw hole (14) is used for screwing a lifting ring.

3. The conical refiner rotor and stator for long fiber refining according to claim 1, characterized in that: The fixing hole groups (13) are arranged in a plurality of groups in a circular array along the central axis of the shaft hole (12) and are transmission-connected to the driving component.

4. The conical refiner rotor and stator for long fiber refining according to claim 1, characterized in that: A mounting lug (22) is protruding from the outer wall of the stator body (20) on one side of the fixed pressure plate (21).

5. The conical refiner rotor and stator for long fiber refining according to claim 1, characterized in that: The edge of the fixed pressing plate (21) is provided with an inwardly concave positioning groove and is fixedly connected to the refiner.

6. The conical refiner rotor and stator for long fiber refining according to claim 1, characterized in that: The rotor grinding teeth (15) are arranged in a plurality of groups in a circular array along the central axis of the rotor body (10), and each group of rotor grinding teeth (15) includes: A first external grinding tooth (151), a second external grinding tooth (153), and a third external grinding tooth (154) are parallel to each other. The first external grinding tooth (151) is provided with a guide grinding tooth (152) extending toward the conical top end of the rotor body (10). The second external grinding tooth (153) and the third external grinding tooth (154) are respectively provided with a plurality of teeth and are arranged on one side of the first external grinding tooth (151). The second external grinding tooth (153) is arranged at the interval between the third external grinding tooth (154).

7. The rotor and stator of a conical refiner for long fiber refining according to claim 6, characterized in that: The stator grinding teeth (23) are arranged in a plurality of groups in a circular array along the central axis of the stator body (20), and each group of stator grinding teeth (23) includes: A first internal grinding tooth (231), a second internal grinding tooth (232), and a third internal grinding tooth (233) are parallel to each other, wherein a plurality of the first internal grinding teeth (231) are provided and extend from the top of the cone of the stator body (20), and a plurality of the second internal grinding teeth (232) and the third internal grinding teeth (233) are provided respectively and are spaced apart from the plurality of first internal grinding teeth (231).

8. The conical refiner rotor and stator for long fiber refining according to claim 7, characterized in that: The first outer grinding teeth (151) and the guide grinding teeth (152) transition smoothly.

9. The rotor and stator of a conical refiner for long fiber refining according to claim 7, characterized in that: The rotor grinding teeth (15) are arranged in a straight line shape; The stator grinding teeth (23) are arranged in a curved strip shape that is concave toward the feed end.

10. The rotor and stator of a conical refiner for long fiber refining according to claim 7, characterized in that: The side close to the top of the cone of the rotor body (10): The length of the second external grinding tooth (153) is smaller than the first external grinding tooth (151) and / or the third external grinding tooth (154) on both sides thereof; The side close to the top of the cone of the stator body (20): The length of the third internal grinding tooth (233) is smaller than the first internal grinding tooth (231) and / or the second internal grinding tooth (232) on its two adjacent sides, and a chamfer is provided on one side of the third internal grinding tooth (233) close to the cone top of the stator body (20).

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