Neodymium iron boron grinding large particle scrap material recycling apparatus

Abstract

The utility model discloses a neodymium iron boron grinding big particle scrap waste recovery equipment, including setting up the workstation of processing platform and processing module, the workstation below is equipped with base, is equipped with recovery cavity in the base inside, is used for collecting the big particle scrap of producing in the grinding process. The recovery cavity outside is equipped with the driving disc through the bearing, and the driving disc circumference is arranged with a plurality of mechanical scraper, and the mechanical scraper rotates along the circumference direction of recovery cavity under the driving of driving disc, realizes the scraping collection and conveyance to the scrap. Every mechanical scraper includes an installation arm, and the bottom of installation arm is equipped with the installation groove interval, and every installation groove all installs a scraping plate, and forms the clearance chamber between the adjacent scraping plate, and the big particle scrap is conveniently concentrated and is guided to prevent the jam. Through above -mentioned structure, the utility model can realize the efficient recovery of neodymium iron boron grinding big particle scrap, reduces the resource waste, promotes the scrap integrity, has the advantages such as simple operation, high recovery efficiency and strong applicability.

Description

Technical Field

[0001] This utility model relates to the field of neodymium iron boron (NdFeB) processing, specifically to a device for recycling large particles of waste material from NdFeB grinding. Background Technology

[0002] During the grinding process of neodymium iron boron magnets, waste in various forms is inevitably generated, mainly including two categories: one is sludge-like grinding sludge, typically composed of coolant, iron, and some rare earth oxides, with rare earth oxide content generally between 15% and 30%, iron content approximately 20% to 40%, and a large amount of coolant mixed in; the other is larger particles of debris, with rare earth content reaching 30% to 35%, the remainder mainly consisting of iron. Both types of waste have high recycling value, but due to their different compositions and forms, their recycling process requirements also differ.

[0003] Existing solutions for recovering large particles of NdFeB grinding debris generally suffer from low separation accuracy and low recovery rates, resulting in the inability to fully recover and utilize valuable rare earth elements. Furthermore, because cutting fluid is often mixed into the debris during recovery, the separated material has a high liquid content, easily leading to secondary pollution and increasing the complexity and cost of subsequent processing. In addition, some recovery equipment is prone to secondary crushing of the debris particles during operation, reducing particle integrity and reuse efficiency. The equipment is also relatively cumbersome to clean and maintain, increasing operating costs and operational difficulty. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a recycling device for large particles of waste material from neodymium iron boron grinding, which effectively overcomes the shortcomings of existing technologies.

[0005] This utility model is achieved through the following technical solution: a recycling device for large particles of waste material from NdFeB grinding, comprising:

[0006] A workbench, on which a processing table and a processing module are provided;

[0007] The base, located at the bottom of the workbench, has a recovery chamber into which large particles of debris generated during processing fall;

[0008] The drive disc is rotatably mounted on the outside of the worktable via bearings;

[0009] One or more mechanical scrapers are arranged around the outer edge of the drive disk, and the drive disk drives one or more mechanical scrapers to rotate around the circumference of the recovery chamber.

[0010] Each mechanical scraper includes a mounting arm, and the bottom of the mounting arm is provided with one or more mounting grooves at intervals. Each mounting groove is equipped with a scraper, and a gap cavity is formed between adjacent scrapers.

[0011] As a preferred technical solution, one or more blocking blocks are arranged at intervals in any position in the recycling chamber. Each blocking block corresponds to the scraper between every three scraper plates. When the mechanical scraper passes the blocking block, each blocking block lifts up the scraper between every three scraper plates to expand the gap between adjacent scraper plates.

[0012] As a preferred technical solution, the scraper and the mounting groove are rotatably connected by rotating pins, and each rotating pin is equipped with a torsion spring, which ensures that the scraper is always perpendicular to the horizontal plane in its natural state.

[0013] As a preferred technical solution, a drive gear is provided at the upper end of the drive disk, and a drive mechanism is provided at the outer end of the base, which drives the drive disk to rotate circumferentially.

[0014] As a preferred technical solution, the driving mechanism includes a motor platform, on which a drive motor is fixedly mounted. The output end of the drive motor is provided with a drive wheel, and a drive belt is provided between the drive wheel and the drive disc, thereby driving the drive disc to rotate circumferentially.

[0015] As a preferred technical solution, the recycling chamber has a waste collection trough, and a waste collection box is provided in the waste collection trough in a pull-out manner. Large particles of debris are scraped into the waste collection box by a mechanical scraper.

[0016] As a preferred technical solution, a liquid collection ring is provided on both the inner and outer sides of the recovery chamber, and the output end of the liquid collection ring is connected to the coolant return system.

[0017] As a preferred technical solution, the recovery chamber is provided with one or more liquid guide rods, and the side of the liquid guide rod facing the mechanical scraper is provided with two liquid guide surfaces, the inclined surface of the liquid guide surface facing the liquid collection ring.

[0018] The beneficial effects of this utility model are as follows: By setting a structure that can rotate along a rotating pin between the mounting groove and the scraper, the scraper can avoid impacts based on the force applied during operation. When the scraper comes into contact with large particles, it is no longer a completely rigid, hard compression, but rather possesses a certain degree of rotation and deformation under the action of a torsion spring. This significantly reduces the compressive force between the scraper and the debris, preventing large particles from breaking or being damaged due to excessive compression during recycling, thus ensuring the integrity and reuse value of the recycled particles. Simultaneously, this structure also allows the scraper to open the gap between the scraper blades when encountering fine powder stuck in the material, thereby expelling the stuck material and preventing jamming.

[0019] In addition, this invention can guide the flow of coolant, allowing it to flow into the collection ring more quickly and return to the circulation system, thereby reducing the amount of coolant remaining in the recovery chamber and effectively reducing the risk of secondary pollution. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a top view of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0024] Explanation of reference numerals in the attached figures:

[0025] 13. Workbench; 6. Processing table; 1. Base; 2. Recovery chamber; 12. Drive disc; 3. Mechanical scraper; 32. Mounting arm; 31. Mounting groove; 33. Scraper; 5. Blocking block; 15. Drive gear disc; 10. Motor platform; 9. Drive wheel; 11. Drive belt; 14. Waste collection box; 7. Liquid collection ring; 8. Liquid guide rod; 4. Waste collection tank; 13. Workbench. Detailed Implementation

[0026] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0027] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0028] like Figures 1-3 As shown, in a preferred embodiment of this utility model, the NdFeB grinding large particle waste recycling equipment includes a worktable 13 located at the upper end of the overall device. A processing table 6 and a processing module are installed on the worktable 13 for completing the grinding operation of NdFeB magnets. During the processing, due to the grinding action, some larger particles of debris will fall off under gravity and directly enter the base 1 located below the worktable 13. The base 1 is provided with a recycling chamber 2, which serves as the core collection area of ​​this device, used to receive and concentrate large particles of debris, preventing them from being discharged with the coolant or fine powder, thereby ensuring centralized waste treatment.

[0029] A drive disc 12 is mounted on the outside of the recovery chamber 2 via bearings, allowing for smooth circumferential rotation supported by the bearings. One or more mechanical scrapers 3 are arranged around the drive disc 12, each moving circumferentially along the recovery chamber 2 as the drive disc 12 rotates. The function of the mechanical scrapers 3 is to scrape large particles of debris deposited or scattered at the bottom and sidewalls of the recovery chamber 2 towards a designated direction for smooth entry into the subsequent collection structure.

[0030] Each mechanical scraper 3 includes a mounting arm 32, with several mounting slots 31 spaced apart at the bottom of the mounting arm 32. A scraper 33 is movably mounted in each mounting slot 31, and multiple gap cavities are formed between adjacent scraper cavities. When the mechanical scraper 3 rotates in the recovery chamber 2, these scraper cavities can continuously sweep across the bottom and wall of the recovery chamber 2 like comb teeth, concentrating and scraping large particles and debris, and dispersing some of the material with the help of the gap cavities.

[0031] To further enhance the flexibility of the scraper during operation, the scraper plate 33 and the mounting groove 31 are rotatably connected by rotating pins, with a torsion spring fitted on each rotating pin. Under the action of the torsion spring, the scraper plate 33 remains vertically perpendicular to the horizontal plane in its natural state, but can deflect at a certain angle when subjected to a large external force, thus playing a role in avoiding collisions. This design can significantly reduce the hard compression of the scraper plate 33 when encountering large particles of debris, avoiding breakage or damage to the debris due to excessive compression force, and ensuring the integrity of the debris particles and their subsequent reuse value. At the same time, when the scraper plate 33 becomes stuck due to fine material blockage, the scraper plate 33 can appropriately open the gap under the action of external force to automatically discharge the stuck material, ensuring the continuous operation and reliability of the device.

[0032] Inside the recovery chamber 2, multiple blocking blocks 5 are also provided. These blocking blocks 5 are arranged at intervals along the circumference of the recovery chamber 2 and cooperate with the scraper 33. When the mechanical scraper 3 moves with the drive disc 12 and passes the blocking blocks 5, the blocking blocks 5 will push up the scraper 33 at the corresponding position, causing the scraper 33 to be lifted or opened instantaneously. This expands the gap between adjacent scraper 33, facilitating the introduction of materials or the discharge of fine powder, and further improving the flexibility and efficiency of collection.

[0033] In terms of drive, a drive gear disc 15 is provided on the upper end of the drive disc 12, and a drive mechanism is fixedly installed on the outer end of the base 1. The drive mechanism includes a motor platform 10, on which a drive motor is installed. The output end of the drive motor is connected to a drive wheel 9, and the drive wheel 9 and the drive disc 12 are connected by a drive belt 11. When the motor is running, the drive wheel 9 drives the drive belt 11 to rotate, thereby driving the drive disc 12 to achieve continuous and stable circumferential motion, so that the mechanical scraper 3 keeps running at a uniform speed, thereby continuously completing the scraping and conveying of debris.

[0034] At the bottom of the recycling chamber 2, a waste collection trough 4 is provided, inside which a waste collection box 14 is installed in a pull-out manner. As the mechanical scraper 3 continues to operate, large particles of debris are collected and scraped into the collection trough, and eventually fall into the waste collection box 14. Operators can remove the waste collection box 14 by pulling it out, thereby achieving regular cleaning and recycling of large particles of debris. This structure not only simplifies the operation steps, but also effectively reduces the risk of manual contact with debris.

[0035] Considering the large amount of coolant present during the grinding process, both the inner and outer surfaces of the recovery chamber 2 are equipped with liquid collection rings, the output end of which is connected to the coolant return system. During the scraper movement and chip separation process, the coolant is guided into the liquid collection rings and ultimately returns to the circulation system, avoiding large amounts of coolant residue and waste, reducing secondary pollution, and ensuring the efficient recycling of the coolant.

[0036] In addition, one or more liquid guide rods are arranged inside the recovery chamber 2. The side of the liquid guide rod facing the mechanical scraper 3 has two liquid guide surfaces, and the inclined direction of these liquid guide surfaces is towards the liquid collection ring. When coolant adheres to the scraper or debris surface, it can quickly flow to the liquid collection ring with the help of the inclined structure of the liquid guide surfaces, achieving effective guidance and separation, and further improving the recovery speed and purity of coolant.

[0037] Through the above structure, this invention can efficiently collect large particles of debris during grinding, and the avoidance design of the scraper 33 reduces the hard compression of the debris, thereby effectively preventing secondary breakage. Simultaneously, the synergistic effect of the gap cavity and the blocking block 5 can discharge jammed material, maintaining smooth system operation. The coolant is rapidly guided and recovered through the cooperation of the collecting ring and the guide rod, preventing residual liquid accumulation and secondary pollution. The overall device has a compact structure and stable operation, improving the purity and efficiency of debris recovery while also considering environmental protection and safety, making it highly valuable for practical applications.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A recycling device for large-particle waste from NdFeB grinding, characterized in that, include: A workbench (13) is provided with a processing table (6) and a processing module; The base (1) is located at the bottom of the workbench (13) and has a recycling chamber (2) into which large particles of debris generated during processing fall; The drive disk (12) is rotatably mounted on the outside of the worktable (13) via bearings; One or more mechanical scrapers (3) are arranged around the outside of the drive disk (12), and the drive disk (12) drives one or more mechanical scrapers (3) to rotate around the circumference of the recycling chamber (2); Each mechanical scraper (3) includes a mounting arm (32), and the bottom of the mounting arm (32) is provided with one or more mounting grooves (31) at intervals. Each mounting groove (31) is equipped with a scraper (33), and a gap cavity is formed between adjacent scrapers (33).

2. The NdFeB grinding large particle waste recycling equipment according to claim 1, characterized in that: One or more blocking blocks (5) are arranged at intervals in any position in the recycling chamber (2). The middle scraper (33) of every three scraper plates (33) corresponds to a blocking block (5). When the mechanical scraper (3) passes the blocking block (5), each blocking block (5) lifts the middle scraper (33) of every three scraper plates (33) to expand the gap cavity between adjacent scraper plates (33).

3. The NdFeB grinding large particle waste recycling equipment according to claim 1, characterized in that: The scraper (33) and the mounting groove (31) are rotatably connected by rotating pins. Each rotating pin is equipped with a torsion spring, which ensures that the scraper (33) is always perpendicular to the horizontal plane in its natural state.

4. The NdFeB grinding large particle waste recycling equipment according to claim 1, characterized in that: A drive gear (15) is provided at the upper end of the drive disk (12), and a drive mechanism is provided at the outer end of the base (1). The drive mechanism drives the drive disk (12) to rotate circumferentially.

5. The NdFeB grinding large particle waste recycling equipment according to claim 4, characterized in that: The driving mechanism includes a motor platform (10), on which a drive motor is fixedly installed. The output end of the drive motor is provided with a drive wheel (9), and a drive belt (11) is provided between the drive wheel (9) and the drive disc (12). The drive disc (12) is driven to rotate circumferentially by the drive belt (11).

6. The NdFeB grinding large particle waste recycling equipment according to claim 1, characterized in that: The recycling chamber (2) has a waste collection trough (4), and a waste collection box (14) is provided in the waste collection trough (4) in a pull-out manner. Large particles of debris are scraped into the waste collection box (14) by a mechanical scraper (3).

7. The NdFeB grinding large particle waste recycling equipment according to claim 1, characterized in that: The inner and outer sides of the recovery chamber (2) are provided with liquid collection rings, and the output end of the liquid collection rings is connected to the coolant return system.

8. The NdFeB grinding large particle waste recycling equipment according to claim 7, characterized in that: The recovery chamber (2) is provided with one or more liquid guide rods. The side of the liquid guide rod facing the mechanical scraper (3) is provided with two liquid guide surfaces. The inclined surface of the liquid guide surface faces the liquid collection ring.

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