Neodymium iron boron waste oxidizing and calcining device

Abstract

The utility model relates to the neodymium iron boron waste processing technical field, concretely is a kind of neodymium iron boron waste oxidation calcining device, including cylinder, still including servo motor, discharging mechanism, baffle, driving mechanism, main crushing roller, baffle, secondary crushing roller and calcining furnace, the servo motor is connected with cylinder, the baffle is connected with discharging mechanism, the main crushing roller and secondary crushing roller are connected with driving mechanism, the baffle is connected with cylinder, the calcining furnace is connected with cylinder, servo motor starts when the discharging mechanism control baffle rotation to control the ration of waste quantitative discharging, simultaneously driving mechanism controls the main crushing roller and secondary crushing roller differential rotation and carries out secondary crushing to waste, carries out calcining by the calcining furnace, by the ration of waste quantitative calcining to the waste that carries out multiple crushing, once to the ration of waste quantitative calcining, can guarantee the uniformity of calcining, to be able to improve the effect of calcining.

Description

Technical Field

[0001] This utility model relates to the field of neodymium iron boron waste processing technology, specifically to a neodymium iron boron waste oxidation and calcination device. Background Technology

[0002] Neodymium iron boron (NdFeB), simply put, is a type of magnet, but unlike the magnets we usually see, it is known as the "King of Magnets" due to its superior magnetic properties. NdFeB contains a large amount of the rare earth elements neodymium, iron, and boron, and is characterized by its hardness and brittleness. Because its surface is extremely susceptible to oxidation and corrosion, NdFeB requires surface coating treatment. Surface chemical passivation is one of the best solutions. As a rare earth permanent magnet material, NdFeB possesses extremely high magnetic energy product and coercivity. Its high energy density has led to its widespread application in modern industry and electronics, making it possible to miniaturize, lighten, and thinn instruments, electroacoustic motors, magnetic separation and magnetization equipment. The advantages of NdFeB are its high cost-effectiveness and good mechanical properties; its disadvantages include low operating temperature, poor temperature characteristics, and susceptibility to pulverization and corrosion. These must be improved by adjusting its chemical composition and adopting surface treatment methods to meet the requirements of practical applications.

[0003] In the recycling process of NdFeB waste, it is necessary to first calcine the NdFeB waste to remove oil, water and combustibles. However, the existing NdFeB waste calcination equipment has a relatively simple structure, using only one process to crush the NdFeB waste. This results in low crushing efficiency and long calcination time. Moreover, the calcination box used to calcine the NdFeB waste is difficult to clean, leading to serious pollution during calcination.

[0004] To address the aforementioned problems, existing technologies provide a solution. For example, patent publication number CN212263474U provides a neodymium iron boron waste oxidation and calcination device, which includes a mounting base plate. A discharge channel is provided on the upper surface of the fixed block. A rotating shaft and two crushing rollers are rotatably connected to the inner side of the discharge channel. Multiple crushing blades are fixedly installed on the outer side of the rotating shaft. A second motor is fixedly installed on one side of the right vertical plate. The output shaft of the second motor passes through the vertical plate and the fixed block and is fixedly connected to the rotating shaft. An installation groove is provided on the lower surface of the fixed block. A third motor is symmetrically fixedly installed on the inner side of the installation groove. The output shaft of each third motor passes through the fixed block and is fixedly connected to the crushing roller. This invention is equipped with a crushing blade and a crushing roller. By starting a second motor, the crushing blade, which is connected via a transfer cable, performs initial crushing of the NdFeB waste. Simultaneously, a third motor is started, driving the crushing roller to further crush the NdFeB waste. This improves the crushing efficiency of the NdFeB waste and shortens the calcination time. Although existing devices can crush NdFeB waste multiple times to achieve calcination of relatively small particles, if too much waste is crushed at once, it can easily lead to waste accumulation, resulting in uneven calcination.

[0005] To address this, a neodymium iron boron waste oxidation and calcination device is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a neodymium iron boron waste oxidation and calcination device to solve the above-mentioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A neodymium iron boron waste oxidation and calcination device includes a cylinder, a servo motor, a feeding mechanism, a baffle, a drive mechanism, a main crushing roller, a partition, a secondary crushing roller, and a calcination furnace. The servo motor is connected to the cylinder, the feeding mechanism and the drive mechanism are both connected to the servo motor, the baffle is connected to the feeding mechanism, the main crushing roller and the secondary crushing roller are both connected to the drive mechanism, the partition is connected to the cylinder, and the calcination furnace is connected to the cylinder. When the servo motor starts, the feeding mechanism controls the baffle to rotate to control the quantitative feeding of waste. At the same time, the drive mechanism controls the main crushing roller and the secondary crushing roller to rotate at different speeds and perform secondary crushing of the waste, which is then calcined in the calcination furnace.

[0009] Preferably, the feeding mechanism includes a drive gear and an external gear, the drive gear is connected to a servo motor, the external gear cooperates with the drive gear, and the baffle is connected to the external gear.

[0010] Preferably, the gear ratio between the drive gear and the external gear is 1:10 to 1:20.

[0011] Preferably, the driving mechanism includes a main rotating rod, a pusher plate, a main gear, a secondary gear, and a secondary rotating rod. The main rotating rod is connected to a servo motor. The pusher plate, the main crushing roller, and the main gear are all connected to the main rotating rod. The secondary gear cooperates with the main gear. The secondary rotating rod is connected to the secondary gear. The secondary crushing roller is connected to the secondary rotating rod.

[0012] Preferably, there are two secondary rotating rods symmetrically arranged around the main rotating rod, and the secondary crushing rollers on the two secondary rotating rods are arranged crosswise.

[0013] Preferably, the gear ratio between the primary gear and the secondary gear is 1:5:-1:10.

[0014] Preferably, the partition has a discharge hole inside, the length of the pusher plate is the same as the length of the discharge hole, and the edges of the discharge hole and the pusher plate are both arc-shaped.

[0015] Preferably, both the cylinder and the baffle are provided with feeding ports, and the feeding ports on the cylinder and the feeding ports on the baffle are either identical or staggered.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] By repeatedly crushing the waste, the size of the waste can be reduced. Then, the crushed waste particles are quantitatively calcined. Since the crushed waste particles are small and a quantitative amount of waste is calcined at one time, the uniformity of calcination can be ensured, thereby improving the calcination effect. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional cross-sectional structural diagram of the cylindrical body of this utility model;

[0020] Figure 3 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0021] Figure 4 This is a top view cross-sectional structural diagram of the present invention.

[0022] In the diagram: 1. Cylinder; 2. Servo motor; 3. Feeding mechanism; 31. Drive gear; 32. External gear; 4. Baffle; 5. Drive mechanism; 51. Main rotating rod; 52. Push plate; 53. Main gear; 54. Secondary gear; 55. Secondary rotating rod; 56. Discharge hole; 6. Main crushing roller; 7. Partition plate; 8. Secondary crushing roller; 9. Calcination furnace; 10. Feeding port. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. However, the embodiments described below are only some embodiments of the present utility model, and not all of them. If other embodiments are obtained by those skilled in the art without creative effort, they shall fall within the protection scope of the present utility model.

[0024] Reference Figures 1 to 4 A neodymium iron boron waste oxidation calcination device includes a cylinder 1 with a sealing door on one side for sealing and easy removal of the calcined waste. It also includes a servo motor 2, a feeding mechanism 3, a baffle 4, a drive mechanism 5, a main crushing roller 6, a partition 7, a secondary crushing roller 8, and a calcination furnace 9. The servo motor 2 is connected to the cylinder 1, the feeding mechanism 3 and the drive mechanism 5 are both connected to the servo motor 2, the baffle 4 is connected to the feeding mechanism 3, and the main crushing roller 6 and the secondary crushing roller 8 are both connected to the drive mechanism 5. The partition 7 is connected to the cylinder 1, and the calcining furnace 9 is connected to the cylinder 1. Both the cylinder 1 and the baffle 4 are provided with feeding ports 10. The feeding ports 10 on the cylinder 1 and the feeding ports 10 on the baffle 4 are either coincident or staggered. Through the above settings, the waste material can be quantitatively fed. When the servo motor 2 starts, the feeding mechanism 3 controls the baffle 4 to rotate to control the quantitative feeding of waste. At the same time, the drive mechanism 5 controls the main crushing roller 6 and the secondary crushing roller 8 to rotate at different speeds and perform secondary crushing of the waste, which is then calcined in the calcining furnace 9.

[0025] As one embodiment of this utility model, refer to Figure 2 and Figure 3 The feeding mechanism 3 includes a drive gear 31 and an external gear 32. The drive gear 31 is connected to the servo motor 2, and the external gear 32 is engaged with the drive gear 31. The drive gear 31 and the external gear 32 are made of high-strength and high-precision gears to ensure the accuracy and stability of the transmission. The external gear 32 is tightly connected to the baffle 4 to ensure that there will be no loosening during rotation. The baffle 4 is connected to the external gear 32. The gear ratio between the drive gear 31 and the external gear 32 is 1:10-1:20. This gear ratio design can achieve relatively precise control of the rotation of the baffle 4, thereby controlling the quantitative feeding of waste. When a certain amount of waste needs to be fed, the servo motor 2 rotates a specific number of revolutions according to the set parameters. Through the transmission of the drive gear 31 and the external gear 32, the baffle 4 is rotated to the appropriate position, opening or closing the feeding port 10 to achieve quantitative feeding.

[0026] As one embodiment of this utility model, refer to Figure 3 and Figure 4The drive mechanism 5 includes a main rotating rod 51, a pusher plate 52, a main gear 53, a secondary gear 54, and a secondary rotating rod 55. The main rotating rod 51 is connected to the servo motor 2. The pusher plate 52, the main crushing roller 6, and the main gear 53 are all connected to the main rotating rod 51. The secondary gear 54 cooperates with the main gear 53. The secondary rotating rod 55 is connected to the secondary gear 54. The secondary crushing roller 8 is connected to the secondary rotating rod 55. There are two secondary rotating rods 55 symmetrically arranged around the main rotating rod 51. The secondary crushing rollers 8 on the two secondary rotating rods 55 are arranged crosswise. The main gear 53 and the secondary gear 54 are connected to the main rotating rod 55. The gear ratio of 4 is 1:5:-1:10. Through the above settings, the main crushing roller 6 and the secondary crushing roller 8 can achieve differential rotation, thereby crushing the waste material in a secondary manner. When the main rotating rod 51 rotates clockwise, the main gear 53 drives the secondary gear 54 to rotate counterclockwise, so that the secondary crushing rollers 8 on the two secondary rotating rods 55 rotate at different speeds and directions, and fully crush the incoming waste material. The partition plate 7 has a discharge hole 56 inside. The length of the push plate 52 is the same as the length of the discharge hole 56. The edges of the discharge hole 56 and the push plate 52 are both arc-shaped.

[0027] Working principle: Waste material enters the device through the feeding ports 10 on the cylinder 1 and the baffle 4, which may overlap or be offset. Then, the servo motor 2 is started, which drives the external gear 32 to rotate via the drive gear 31. When the external gear 32 rotates, it drives the baffle 4 to rotate, thereby controlling the feeding ports 10 on the cylinder 1 to overlap or be offset from the feeding ports 10 on the baffle 4, thus achieving quantitative feeding of waste material. The waste material falls above the partition 7, and with the rotation of the main rotating rod 51, it drives the main crushing roller 6 to rotate, thus achieving the initial crushing of the waste material. When the main rotating rod 51 rotates, it drives the pusher plate 52 to rotate, and the pusher plate 52 may overlap or be offset from the discharge hole 56, thus achieving the discharge of the waste material after the initial crushing. The waste material after the initial crushing is discharged below the partition 7. At the same time, the main rotating rod 51 drives the main gear 53 to rotate. When the main gear 53 rotates, it can drive the secondary rotating rod 55 to rotate through the secondary gear 54. When the secondary rotating rod 55 rotates, it can drive the secondary crushing roller 8 to rotate, so as to realize the secondary crushing of the waste material. Then, the secondary crushed waste material is calcined in the calcining furnace 9 to improve the calcination effect. The feeding mechanism 3 controls the baffle 4 to rotate for quantitative feeding. At the same time, the drive mechanism 5 controls the main crushing roller 6 and the secondary crushing roller 8 to rotate at different speeds to crush the waste material a second time. The crushed waste particles fall into the calcining furnace 9 through the discharge hole 56 opened inside the partition 7 for calcination. After calcination, the sealing door is opened to remove the calcined waste material.

[0028] Although the embodiments of this utility model have been described in detail with reference to the accompanying drawings, those skilled in the art can make changes, modifications, substitutions and variations to these embodiments without departing from the principles and spirit of this utility model. The appended claims and their equivalents define the scope of this utility model.

Claims

1. A neodymium iron boron waste oxidation and calcination device, comprising a cylindrical body (1), characterized in that: It also includes a servo motor (2), a feeding mechanism (3), a baffle (4), a drive mechanism (5), a main crushing roller (6), a partition (7), a secondary crushing roller (8), and a calcining furnace (9). The servo motor (2) is connected to the cylinder (1). The feeding mechanism (3) and the drive mechanism (5) are both connected to the servo motor (2). The baffle (4) is connected to the feeding mechanism (3). The main crushing roller (6) and the secondary crushing roller (8) are both connected to the drive mechanism (5). The partition (7) is connected to the cylinder (1). The calcining furnace (9) is connected to the cylinder (1). When the servo motor (2) is started, the feeding mechanism (3) controls the baffle (4) to rotate to control the quantitative feeding of waste. At the same time, the drive mechanism (5) controls the main crushing roller (6) and the secondary crushing roller (8) to rotate at different speeds and perform secondary crushing of the waste. The waste is then calcined in the calcining furnace (9).

2. The neodymium iron boron waste oxidation and calcination device according to claim 1, characterized in that: The feeding mechanism (3) includes a drive gear (31) and an external gear (32). The drive gear (31) is connected to the servo motor (2). The external gear (32) cooperates with the drive gear (31). The baffle (4) is connected to the external gear (32).

3. The neodymium iron boron waste oxidation and calcination device according to claim 2, characterized in that: The gear ratio between the drive gear (31) and the external gear (32) is 1:10-1:

20.

4. The neodymium iron boron waste oxidation and calcination device according to claim 1, characterized in that: The drive mechanism (5) includes a main rotating rod (51), a pusher plate (52), a main gear (53), a secondary gear (54), and a secondary rotating rod (55). The main rotating rod (51) is connected to the servo motor (2). The pusher plate (52), the main crushing roller (6), and the main gear (53) are all connected to the main rotating rod (51). The secondary gear (54) is engaged with the main gear (53). The secondary rotating rod (55) is connected to the secondary gear (54). The secondary crushing roller (8) is connected to the secondary rotating rod (55).

5. The neodymium iron boron waste oxidation and calcination device according to claim 4, characterized in that: There are two secondary rotating rods (55) symmetrically arranged around the main rotating rod (51), and the secondary crushing rollers (8) on the two secondary rotating rods (55) are arranged crosswise.

6. The neodymium iron boron waste oxidation and calcination device according to claim 5, characterized in that: The gear ratio between the main gear (53) and the secondary gear (54) is 1:5:-1:

10.

7. The neodymium iron boron waste oxidation and calcination device according to claim 6, characterized in that: The partition (7) has a discharge hole (56) inside. The length of the pusher plate (52) is the same as the length of the discharge hole (56). The edges of the discharge hole (56) and the pusher plate (52) are both arc-shaped.

8. The neodymium iron boron waste oxidation and calcination device according to claim 1, characterized in that: Both the cylinder (1) and the baffle (4) are provided with feeding ports (10), and the feeding ports (10) on the cylinder (1) and the feeding ports (10) on the baffle (4) are either coincident or staggered.

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