Grinding disc unit of pulping machine
By designing the support frame, guide trough, refining disc and motor-driven refining disc unit, the wear and adaptability problems of the refining disc unit are solved, and efficient refining and low-cost pulp processing are achieved.
Patent Information
- Application Number
- CN202422836352.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-21
AI Technical Summary
The existing grinding disc unit is severely worn after long-term operation, the refining accuracy is reduced, it cannot adapt to different raw material characteristics and processing conditions, and the high cost limits its promotion.
A grinding unit including a support frame, a guide trough, first and second grinding plates, a feeding assembly and a motor is designed. It adopts arc-shaped grinding teeth and an anti-blocking unit. The motor drives the grinding plate to rotate and the guide trough to guide the flow, thereby achieving efficient refining.
It improves the refining quality and output, prolongs the service life of the refining disc and refiner, simplifies maintenance and reduces costs.
Smart Images
Figure CN223316988U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of refiner discs, and in particular relates to a refiner disc unit. Background Art
[0002] With the rapid development of the papermaking industry, the demand for pulp quality is becoming increasingly stringent. To improve pulp quality, various types of refiners have emerged. Among them, the refiner disc unit, a key component of the refiner, directly impacts the quality of the final product, production efficiency, and service life, but there is still room for improvement. Currently, two main types of refiner disc units are commonly found on the market: fixed disc units and movable disc units. Fixed disc units have a simple structure and are relatively low cost, but they wear quickly and require minimal maintenance. In contrast, movable disc units reduce wear through rotation or vibration, thereby improving durability and stability. However, while some strength-class refiner disc units utilize specialized materials and technical treatments to enhance durability and stability, they still face challenges in certain high-intensity operating environments. Furthermore, some high-end refiner disc units utilize specialized materials and technical treatments to enhance wear resistance, such as carbide coatings or ceramics. While these measures can address some issues, they also increase costs. While existing refiner disc units have achieved certain improvements in various areas, some common challenges remain. First, both fixed and movable refining discs will experience varying degrees of wear over extended periods of operation, leading to reduced refining precision and impacting product quality. Second, conventional refining disc designs often lack specific adaptability and cannot effectively adapt to specific raw material characteristics or varying processing conditions, limiting their application. Finally, high costs are a major barrier to the adoption of new technologies. Existing technologies are complex and inconvenient for ongoing maintenance. Utility Model Content
[0003] The purpose of the utility model is to solve the above-mentioned technical problems and provide a refiner unit for a pulping machine, which achieves a simple structure, convenient and fast pulping process.
[0004] In view of this, the present invention provides a refining unit of a pulping machine, including a support frame and a guide groove, which is arranged on the support frame; a first refining plate, which is arranged on the guide groove; a second refining plate, which is arranged on the first refining plate; a feeding assembly, which is arranged on the second grinding disc; and a first motor, which is arranged at the bottom of the guide groove.
[0005] In this technical solution, pulp is poured into the feeding assembly, the first motor drives the first grinding disc to rotate to grind the pulp, and the guide groove guides the ground pulp. The structure is simple, convenient and fast for pulp grinding.
[0006] In the above technical solution, further, the second grinding disc is rotatably arranged in the guide groove, the second grinding disc is provided with a slurry inlet, the slurry inlet is arranged in a circular array on the second grinding disc, the second grinding disc is coaxially connected to the output end of the first motor, and the output end of the first motor passes through the bottom of the guide groove and is coaxially connected to the second grinding disc.
[0007] In this technical solution, the pulp inlet guides the pulp to between the first grinding plate and the second grinding plate for the grinding process.
[0008] In the above technical solution, further, grinding teeth are provided at the bottom of the second grinding disc, and tooth grooves are provided between adjacent grinding teeth. The tooth height and width of the grinding teeth are the same, and the grinding teeth are arc-shaped in the longitudinal direction; the grinding teeth are of different lengths to form grinding tooth areas, and the grinding tooth areas are arranged periodically, and within each period, along the circumferential direction of the grinding teeth.
[0009] In this technical solution, the arc-shaped tooth structure of the grinding teeth, the formation of the grinding area and the arrangement of the grinding area not only control the refining quality and output, but also reduce the service life of the grinding plate and the wear of the refiner.
[0010] In the above technical solution, further, the feeding assembly includes a feed hopper, which is arranged on the second grinding disc, and a first mounting bracket is provided on the feed hopper, and a second motor is provided on the first mounting bracket, and the output end of the second motor is coaxially connected to an anti-blocking unit, and the anti-blocking unit clears the slurry inlet.
[0011] In this technical solution, pulp is poured into a feed hopper, which directs the pulp to an inlet port. Through the inlet port, the pulp enters the space between the first and second grinding discs. The grinding teeth grind and disperse the fibers within the pulp, while the anti-blocking unit clears the inlet port, accelerating pulp processing efficiency.
[0012] In the above technical solution, further, the anti-blocking unit includes a transmission rod, one end of the transmission rod is coaxially connected to the output end of the second motor, and the other end of the transmission rod is coaxially fixed with a scraper.
[0013] In this technical solution, the second motor drives the scraper to rotate through the transmission rod, allowing the pulp on the second grinding disc to quickly enter the pulp inlet. This not only stirs and breaks up the pulp, but also prevents the pulp from clogging the pulp inlet.
[0014] In the above technical solution, further, a discharge port is provided on the edge of the guide groove, and the discharge port is fixedly provided on the guide groove.
[0015] In this technical solution, the pulp flows slowly out of the discharge port along the guide groove under the guidance of the guide groove.
[0016] In the above technical solution, further, the scraper is in a cross shape.
[0017] In this technical solution, the pulp is better prevented from being blocked at the pulp outlet.
[0018] The beneficial effects of the utility model are:
[0019] 1. By setting the grinding teeth, the arc-shaped tooth structure of the grinding teeth, the formation of the grinding tooth area and the arrangement of the grinding tooth area, not only the refining quality and output are controlled, but also the service life of the refining disc and the wear of the refiner are reduced.
[0020] 2. By setting up the feeding assembly, the pulp enters between the first grinding disc and the second grinding disc through the pulp inlet. The grinding teeth grind and disperse the fibers inside the pulp, and the anti-blocking unit clears the pulp inlet, which speeds up the efficiency of pulp processing.
[0021] 3. By setting up the anti-blocking unit, the pulp will not only be stirred and broken up, but also the pulp will be prevented from blocking the pulp inlet. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a structural diagram of the utility model;
[0023] Figure 2 It is a schematic diagram of the structure from a top view;
[0024] Figure 3 It is a schematic diagram of the second grinding wheel structure.
[0025] The marks in the figure are:
[0026] 1. Support frame; 2. Guide trough; 3. First grinding disc; 4. Second grinding disc; 5. Feeding assembly; 6. First motor; 7. Discharge port; 8. Feed hopper; 9. First mounting frame; 10. Second motor; 11. Scraper; 12. Slurry inlet; 13. Transmission rod; 14. Grinding teeth; 15. Tooth groove. DETAILED DESCRIPTION
[0027] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.
[0028] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.
[0029] It should be noted that the terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.
[0030] It should be noted that, in the description of this application, the directions or positional relationships indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional terms do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional terms "inside and outside" refer to the inside and outside relative to the outline of each component itself.
[0031] It should be noted that, in the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.
[0032] Example 1:
[0033] This embodiment provides a refiner unit of a refiner, such as Figure 1 As shown, the machine comprises a support frame 1, a guide trough 2 disposed on the support frame 1, a first grinding disc 3 disposed on the guide trough 2, a second grinding disc 4 disposed on the first grinding disc 3, a feeding assembly 5 disposed on the second grinding disc, and a first motor 6 disposed at the bottom of the guide trough 2. Pulp is poured into the feeding assembly 5, and the first motor 6 drives the first grinding disc 3 to rotate and grind the pulp. The guide trough 2 guides the ground pulp.
[0034] like Figure 1 As shown, the second grinding disc is rotatably mounted within the guide trough 2. The second grinding disc is provided with a pulp inlet 12, which is arranged in a circumferential array on the second grinding disc. The second grinding disc is coaxially connected to the output end of the first motor 6, and the output end of the first motor 6 passes through the bottom of the guide trough 2 and is coaxially connected to the second grinding disc. The pulp inlet 12 guides the pulp to the space between the first grinding plate 3 and the second grinding plate 4 for the refining process.
[0035] like Figure 3 As shown, the bottom of the second grinding disc is provided with grinding teeth 14, with tooth grooves 15 between adjacent grinding teeth 14. The teeth 14 have the same height and width, and are arc-shaped in the depth direction. The grinding teeth 14 vary in length to form grinding tooth 14 zones, which are arranged periodically. Within each cycle, along the circumference of the grinding teeth 14, the tooth profile of the grinding teeth 14 not only controls the refining quality and output, but also affects the service life of the refining disc and the wear of the refiner.
[0036] like Figure 2 As shown, the feeding assembly 5 includes a feed hopper 8, which is mounted on the second grinding disc. A first mounting bracket 9 is mounted on the feed hopper 8, and a second motor 10 is mounted on the first mounting bracket 9. The output end of the second motor 10 is coaxially connected to an anti-blocking unit, which clears the pulp inlet 12. Pulp is poured into the feed hopper 8, which guides the pulp to the pulp inlet 12. The pulp enters between the first and second grinding discs through the pulp inlet 12.
[0037] like Figure 2 As shown, the anti-blocking unit includes a transmission rod 13, one end of which is coaxially connected to the output end of the second motor 10. A scraper 11 is coaxially fixedly mounted on the other end of the transmission rod 13. The second motor 10 drives the scraper 11 via the transmission rod 13, rotating it and allowing the pulp on the second grinding disc to quickly enter the pulp inlet 12. This not only stirs and disperses the pulp but also prevents it from clogging the pulp inlet 12.
[0038] like Figure 2 As shown, a discharge port 7 is provided at the edge of the guide trough 2, and the discharge port 7 is fixedly provided on the guide trough 2. The pulp flows slowly out of the discharge port 7 along the guide trough 2 under the guidance of the pulp.
[0039] like Figure 2 As shown, the scraper 11 is in a cross shape, which can better prevent the pulp from being blocked at the discharge port 7.
[0040] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.
Claims
1. A refiner unit for a pulping machine, comprising a support frame (1), characterized in that , also includes: A guide trough (2), wherein the guide trough (2) is arranged on the support frame (1); a first grinding plate (3), the first grinding plate (3) being arranged on the guide groove (2); a second grinding plate (4), the second grinding plate (4) being arranged on the first grinding plate (3); A feeding assembly (5), wherein the feeding assembly (5) is arranged on the second grinding disc; A first motor (6), wherein the first motor (6) is arranged at the bottom of the guide groove (2).
2. A refiner unit for a refiner according to claim 1, characterized in that: The second grinding disc is rotatably arranged in the guide groove (2), and the second grinding disc is provided with a pulp inlet (12). The pulp inlet (12) is arranged in a circular array on the second grinding disc. The second grinding disc is coaxially connected to the output end of the first motor (6), and the output end of the first motor (6) passes through the bottom of the guide groove (2) and is coaxially connected to the second grinding disc.
3. The refiner unit of a refiner according to claim 1, characterized in that: The bottom of the second grinding disc is provided with grinding teeth (14), and tooth grooves (15) are provided between adjacent grinding teeth (14). The tooth height and width of the grinding teeth (14) are the same, and the grinding teeth (14) are arc-shaped in the longitudinal direction; the grinding teeth (14) are of different lengths to form grinding tooth (14) areas, and the grinding tooth (14) areas are arranged periodically. In each period, along the circumferential direction of the grinding teeth (14).
4. The refiner unit of a refiner according to claim 1, characterized in that: The feeding assembly (5) comprises a feeding hopper (8), the feeding hopper (8) is arranged on the second grinding disc, a first mounting frame (9) is arranged on the feeding hopper (8), a second motor (10) is arranged on the first mounting frame (9), and an anti-blocking unit is coaxially connected to the output end of the second motor (10), and the anti-blocking unit clears the pulp inlet (12).
5. The refiner unit of a refiner according to claim 4, characterized in that: The anti-blocking unit comprises a transmission rod (13), one end of the transmission rod (13) is coaxially connected to the output end of the second motor (10), and the other end of the transmission rod (13) is coaxially fixed with a scraper (11).
6. The refiner unit of a refiner according to claim 1, characterized in that: A discharge port (7) is provided at the edge of the guide groove (2), and the discharge port (7) is fixedly arranged on the guide groove (2).
7. The refiner unit of a refiner according to claim 5, characterized in that: The scraper (11) is in a cross shape.