Anhydrous rare earth bromide packaging system and anhydrous rare earth bromide preparation method

Abstract

The present invention relates to the technical field of machinery for packaging objects or materials, and in particular to an anhydrous rare earth bromide packaging system and an anhydrous rare earth bromide preparation method. The anhydrous rare earth bromide packaging system comprises a vacuum box, a bracket is provided at the bottom of the vacuum box, a feed port is provided on the empty box, and an electric valve is provided on the feed port; a sealing packaging mechanism is provided in an inspection passage of the vacuum box, and the sealing packaging mechanism is used to enable workers to perform packaging operations in a vacuum environment; a locking mechanism is connected to an operating door, and the locking mechanism is used to lock the operating door and the operating port of a frame; an air flow port is provided on the vacuum box for extracting air and injecting nitrogen, and the air flow port is provided with an electric valve; and a method for preparing anhydrous rare earth bromide using the anhydrous rare earth bromide packaging system is disclosed. The present invention solves the problem of how to package anhydrous rare earth bromide in a vacuum environment.

Description

Technical Field

[0001] The present invention relates to the technical field of machinery for packaging objects or materials, and in particular to an anhydrous rare earth bromide packaging system and an anhydrous rare earth bromide preparation method. Background Art

[0002] Rare earth materials are a very important type of functional materials with a wide range of applications, many of which have important applications in the fields of electronics and magnetism. The physical properties of rare earth materials are closely related to their crystal structure, and one important crystal structure includes anhydrous rare earth bromide. During the preparation process of anhydrous rare earth bromide, the anhydrous rare earth bromide needs to be packaged after dehydration. The Chinese Patent Library discloses packaging equipment capable of packaging anhydrous rare earth bromide. For example, announcement number CN221938660U discloses an anhydrous rare earth bromide packaging device, including a feeder, a discharge port is provided at the front side of the feeder, a lifting plate is provided below the discharge port, and a bottom plate is provided below the lifting plate; the packaging device includes a feed barrel provided above the lifting plate, and a limit block is provided on the left and right side walls of the feed barrel; the lifting device includes a threaded rod, the threaded rod passes through the lifting plate and is threadedly connected to the lifting plate.

[0003] For another example, announcement number CN209192295U discloses a rare earth alloy material packaging device, including a main frame, a baffle fixedly connected to one side of the top of the main frame, a No. 1 servo motor fixedly connected to the main frame near the top of the baffle, a No. 1 active roller fixedly connected to the output end of the No. 1 servo motor, a support frame fixedly connected to the bottom end of the inner wall of the main frame, a weight scale fixedly connected to the end of the support frame away from the main frame, a packing box fixedly connected to the weighing end of the weight scale, and a slide groove provided in the middle of the packing box.

[0004] Although the packaging equipment disclosed in the above two prior arts (CN221938660U and CN209192295U) can also realize the packaging and processing of anhydrous rare earth bromides, there is a problem: anhydrous rare earth bromides are easily deteriorated after prolonged contact with air. Therefore, it is crucial to package and process anhydrous rare earth bromides in a vacuum environment. However, the above prior arts do not disclose how to package and process anhydrous rare earth bromides in a vacuum environment. Summary of the Invention

[0005] In view of this, the object of the present invention is to provide an anhydrous rare earth bromide packaging system and an anhydrous rare earth bromide preparation method, which solves the problem of how to package anhydrous rare earth bromide under a vacuum environment.

[0006] In the first aspect, the present invention discloses an anhydrous rare earth bromide packaging system, comprising a vacuum box body, a support base is provided at the bottom of the vacuum box body, and the support base is used to support the vacuum box body; a feed port is provided on the vacuum box body, and an electric valve is provided on the feed port; a sealing packaging mechanism is provided on the inspection channel of the vacuum box body, and the sealing packaging mechanism includes an inspection door, and a sealing frame strip is provided on one side of the inspection door, and the sealing frame strip is slidably adapted to the inspection channel; the vacuum box body is slidably connected to the inspection door through a guide plate, an operation port is formed on the inspection door, and a frame is connected between the inspection door and the operation port; transparent plates are provided between the frame and the outer frame and between the frame and the operation port, and a transparent blocking cloth is provided on the operation port, and at least one pair or at least one operating glove is integrally formed on the transparent blocking cloth; an operation door for blocking the operation port is provided on the frame; a locking mechanism is connected to the operation door, and the locking mechanism is used to lock the operation door and the operation port of the frame; an air flow port is provided on the vacuum box body, and an electric valve is provided on the air flow port, and the air flow port is used to extract air and inject nitrogen.

[0007] Specifically, a longitudinally extending slide groove is formed on the bottom of the vacuum box body, the guide plate is slidably connected to the slide groove, and the other end of the guide plate is fixedly connected to the inspection door.

[0008] Optimized, the spring body is connected between the inspection door and the vacuum box.

[0009] Specifically, the locking mechanism includes a bearing seat, which is fixedly connected to the frame, and the first support plate and the second support plate are fixedly connected to the bearing seat, the driving gear is concentrically fixedly connected to the pin shaft of the first support plate, and the driven gear is concentrically fixedly connected to the pin shaft of the second support plate, and the driving gear and the driven gear are meshed and linked; the pulling arm is fixedly connected to the pin shaft of the first support plate, and the pulling arm and the first support plate are connected to the third elastic component, and the pin shaft of the second support plate is fixedly connected to the extrusion seat; when the third elastic component is in a natural state, the extrusion seat is used to form an extrusion lock on the operating door.

[0010] Optimized, the locking mechanism also includes a locking pin, which is movably connected to the extrusion seat, a fourth elastic component is connected between the locking pin and the extrusion seat, and a socket is formed on the pull arm; after the extrusion seat is out of contact with the operating door, the locking pin can be plugged into and adapted to the socket.

[0011] As an optimization solution of the present invention, the present invention also includes a vacuum environment manufacturing mechanism, which is connected to the air flow port and is used to inject nitrogen into the vacuum box and remove air from the vacuum box.

[0012] Specifically, the first embodiment of the vacuum environment manufacturing mechanism is as follows: the vacuum environment manufacturing mechanism includes a vacuum pump and a nitrogen tank, the air inlet of the vacuum pump is connected to the air flow port, and the air outlet of the nitrogen tank is also connected to the air flow port.

[0013] Specifically, the second embodiment of the vacuum environment manufacturing mechanism is as follows: the vacuum environment manufacturing mechanism includes an air cavity, the air cavity is placed in the air flow port, and the outer wall of the air cavity is fixedly connected to the air flow port, and a nitrogen cavity is provided in the air cavity; the nitrogen cavity includes a sliding cavity and a fixed cavity, the peripheral flange of the fixed cavity is fixedly connected to the inner wall of the air cavity, an opening is formed at the top of the fixed cavity, and one or more first through holes are provided on the peripheral flange of the fixed cavity; the sliding cavity is placed in the fixed cavity, and the packaging plate at the top of the sliding cavity is slidably connected to the fixed cavity and elastically connected through a first elastic component; the packaging plate is located at the fold of the air cavity, and the first elastic component is at In the natural state, the packaging plate and the folded portion of the air cavity are offset against each other; a nitrogen inlet is formed on the packaging plate, the sliding cavity is provided with at least one nitrogen outlet, and the fixed cavity is provided with at least one second through hole. After the first elastic component is compressed, the first through hole and the second through hole can be formed in a one-to-one relationship and connected; a nitrogen tank and a vacuum pump are provided on one side of the air cavity, and the air supply pipe of the nitrogen tank movably passes through the top of the air cavity and is placed in the air cavity, and the air supply pipe outlet of the nitrogen tank is opposite to and adapted to the nitrogen inlet; the exhaust pipe of the vacuum pump is connected to the top of the air cavity; the air supply pipe of the nitrogen tank is driven by a driving mechanism to move the air supply pipe of the nitrogen tank closer to or away from the nitrogen inlet.

[0014] One embodiment of the driving mechanism is as follows: the driving mechanism includes an electric telescopic rod, the cylinder portion of the electric telescopic rod is fixedly connected to the top of the air cavity, and the shaft portion of the electric telescopic rod is fixedly connected to the air supply pipe of the nitrogen tank.

[0015] In a second aspect, the present invention discloses a method for preparing anhydrous rare earth bromide, which uses the above-mentioned anhydrous rare earth bromide packaging system, comprising the following steps:

[0016] S1, the inspection door of the vacuum box is opened by pulling the inspection door, and multiple packaging bags are placed in the vacuum box in advance; the inspection door and the operating door are closed, the operating opening is blocked and locked by the locking mechanism, and the inspection door is attached to the vacuum box by the elastic deformation of the spring body, thereby achieving the blocking and locking of the inspection passage;

[0017] S2, under the driving action of the driving mechanism, the vacuum environment manufacturing mechanism successively realizes vacuuming and nitrogen filling of the vacuum box;

[0018] S3, when the vacuum environment is completely achieved in the vacuum box and the anhydrous rare earth bromide needs to be packaged; at this time, the locking mechanism is opened and the operating door is opened, and the staff puts their hands into the operating gloves on the transparent baffle, and can manually open the packaging bag and place it under the feed port; open the electric valve on the feed port, and the anhydrous rare earth bromide material falls from the feed port and enters the packaging bag, and the staff manually ties the opening of the packaging bag to complete the single bag vacuum packaging operation.

[0019] The beneficial effects of the present invention are:

[0020] The present invention firstly combines an inspection door, an operating door and a vacuum box to ensure that the vacuum box has the prerequisite of providing a sealed environment for the packaging operation of anhydrous rare earth bromide. Secondly, by combining the air flow port, the extraction of gas in the vacuum box and the injection of nitrogen can be ensured, thereby solving the problem of how to package and process anhydrous rare earth bromide in a vacuum environment. The present invention also combines the inspection door, the operating door and the transparent cloth operating gloves separately to ensure that normal packaging operations can be performed in a vacuum environment by workers using only the operating gloves, without the need to frequently open the inspection door, thereby reducing the frequent steps of exhausting gas and filling nitrogen. On the other hand, the present invention combines a locking mechanism to ensure that the operating door can be effectively locked and unlocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the three-dimensional structure of the anhydrous rare earth bromide packaging system.

[0022] Figure 2 This is a schematic diagram of the partially exploded structure of the anhydrous rare earth bromide packaging system.

[0023] Figure 3 Schematic diagram of the installation structure of the locking mechanism.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the locking mechanism.

[0025] Figure 5 This is a schematic diagram of the assembly structure of the vacuum environment manufacturing mechanism of the second embodiment.

[0026] Figure 6 Schematic diagram of the appearance structure of the fixed cavity.

[0027] Figure 7 This is a schematic diagram of the assembly structure of the first embodiment of the driving mechanism.

[0028] Figure 8 Schematic diagram of the first embodiment of the driving mechanism Figure 1 .

[0029] Figure 9 Schematic diagram of the first embodiment of the driving mechanism Figure 2 .

[0030] Figure 10 This is a schematic diagram of the assembly structure of the second embodiment of the driving mechanism.

[0031] Figure 11 This is a schematic diagram of the transparent cloth and operating gloves.

[0032] Figure 12 Schematic diagram of the local structure of the optimized drive mechanism.

[0033] Figure 13 Schematic diagram of the local structure of the vacuum pump after optimization.

[0034] Figure 14 A schematic diagram of the structure of an electric switch.

[0035] In the figure, 1. vacuum box; 2. bracket; 3. feed port; 4. inspection channel; 5. inspection door; 6. sealing frame; 7. slide; 8. guide plate; 9. operation port; 10. frame; 11. transparent plate; 12. transparent baffle; 13. operation gloves; 14. operation door; 15. bearing seat; 16. first support plate; 17. second support plate; 18. driving gear; 19. driven gear; 20. pulling arm; 21. third elastic component; 22. extrusion seat; 23. locking pin; 24. fourth elastic component; 25. jack; 26. air flow port; 27. air cavity; 28. sliding cavity; 29. ​​fixed cavity; 30. first Through hole; 31. Boss; 32. Packaging plate; 33. Sliding cavity; 34. First elastic component; 35. Crease; 36. Nitrogen inlet; 37. Nitrogen outlet; 38. Second through hole; 39. Air supply pipe; 40. Air exhaust pipe; 41. Electric telescopic rod; 42. Cantilever; 43. Sliding arm; 44. Wedge block; 45. Boss; 46. Second elastic component; 47. Pressure rod; 48. Sealing plate; 49. Fifth elastic component; 50. Block; 51. Blocking groove; 52. Airway; 53. Sleeve; 54. Copper conductive rod; 55. Copper conductive block; 56. Sixth elastic component; 57. Positive conductor; 58. Negative conductor. DETAILED DESCRIPTION

[0036] In order to clearly understand the technical solution of the present application, the anhydrous rare earth bromide packaging system and the anhydrous rare earth bromide preparation method provided by the present application will be described in detail below with reference to specific embodiments and drawings.

[0037] The terms used in the following examples are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and claims of this application, the singular expressions "a," "an," "above," "the," and "this" are intended to include expressions such as "one or more," unless the context clearly indicates otherwise. It should also be understood that in the following examples of this application, "at least one," "one or more" refer to one, two, or more than two.

[0038] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "one embodiment," "some embodiments," "in other embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0039] Example 1: This example provides an anhydrous rare earth bromide packaging system. Figure 1 , which shows a schematic diagram of the three-dimensional structure of the anhydrous rare earth bromide packaging system. As can be seen from the figure, the anhydrous rare earth bromide packaging system includes a vacuum box 1, and a bracket 2 is installed at the bottom of the vacuum box 1, and the bracket 2 is used to support the vacuum box 1; the vacuum box 1 is provided with a feed port 3 for connecting to the silo, and the feed port 3 is provided with an electric valve (using existing technology, which will not be repeated here); the front side of the vacuum box 1 is provided with an inspection channel 4, and the inspection channel 4 is equipped with a sealing packaging mechanism, which is used to facilitate staff to perform packaging operations when the vacuum box 1 is in a sealed state; the specific structure of the sealing packaging mechanism is as follows.

[0040] By combining Figure 1-2 It can be seen that, Figure 2 The diagram shows a partially exploded structure of an anhydrous rare earth bromide packaging system. The sealed packaging mechanism includes an inspection door 5, and a sealing frame strip 6 is formed on one side of the inspection door 5. The sealing frame strip 6 is in sliding contact with the inspection channel 4 and can form a seal for the inspection channel 4; a longitudinally extending slide groove 7 is formed on the bottom of the vacuum box 1, and a guide plate 8 is slidably connected in the slide groove 7, and the guide plate 8 is fixedly connected to the bottom of the inspection door 5 by welding; a circular operating port 9 is formed in the central part of the inspection door 5, and a special-shaped skeleton 10 is connected between the outer frame of the inspection door 5 and the edge of the operating port 9; a transparent plate 11 (such as a glass plate) is installed in the gap between the skeleton 10 and the outer frame, and a transparent plate 11 (such as a glass plate) is also installed in the gap between the skeleton 10 and the operating port 9; a transparent baffle 12 is fixedly connected to the operating port 9 by bonding or the like, and a pair of operating gloves 13 (such as a pair of operating gloves 13) are formed on the transparent baffle 12 in an integrally molded manner. Figure 11 The transparent baffle 12 and the operating gloves 13 are shown in the schematic diagram, the number of gloves can also be one or more or multiple pairs); the operating door 14 is connected to the frame 10 on one side of the operating port 9 through a hinge, and the operating door 14 is used to block the operating port 9 and the transparent baffle 12.

[0041] Among them, when the inspection door 5 blocks the inspection passage 4, in order to prevent the inspection door 5 from being separated from the inspection passage 4 due to external force, a spring body is connected between the inspection door 5 and the vacuum box 1 (the spring body is not shown in the figure); at the same time, in order to prevent the operating door 14 from opening under the action of external force, for this purpose, Figure 3 As shown ( Figure 3 Schematic diagram of the installation structure of the locking mechanism is shown), a locking mechanism is also connected to the operating door 14, which is used to lock the operating door 14 with the operating port 9 of the frame 10; the specific structure of the locking structure is as follows.

[0042] Specifically, refer to Figure 4 , which shows a schematic diagram of the three-dimensional structure of the locking mechanism. As can be seen from the figure, the locking mechanism includes a bearing seat 15, which is fixedly connected (for example, welded) to the frame 10 of the outer frame; a first support plate 16 and a second support plate 17 are fixedly connected to the left and right sides of the surface of the bearing seat 15 respectively, and a driving gear 18 is concentrically fixedly connected to the pin shaft of the first support plate 16, and a driven gear 19 is concentrically fixedly connected to the pin shaft of the second support plate 17, and the driving gear 18 and the driven gear 19 are meshed and linked to form a linkage; a pull arm 20 is fixedly connected to the pin shaft of the first support plate 16, and a third elastic component 21 (for example, a spring) is connected between the pull arm 20 and the first support plate 16; an extrusion seat 22 is fixedly connected to the pin shaft of the second support plate 17. When the third elastic component 21 is in a natural state, the extrusion seat 22 is used to squeeze and lock the operating door 14 in a closed state; and when the third elastic component 21 is in a compressed state, the extrusion seat 22 is out of contact with the operating door 14. During use, when the operating door 14 needs to be opened, the pulling arm 20 is rotated in the direction of c1, and the driving gear 18 is correspondingly linked to the driven gear 19 to rotate in the direction of c2, so that the extrusion seat 22 gradually moves away from the operating door 14, and the operating door 14 in the contact locked state can be opened freely at this time; however, in order to prevent the pulling arm 20 from resetting under the pulling action of the third elastic component 21 after movement, the locking mechanism is further optimized for this purpose.

[0043] Specifically, the locking mechanism also includes a locking pin 23, which is movably connected to the extrusion seat 22 through a fourth elastic component 24 (such as a spring), and a socket 25 is formed on the pull arm 20; when the extrusion seat 22 is out of contact with the operating door 14, the locking pin 23 can be plugged into and adapted to the socket 25.

[0044] Continue from Figure 1 As can be seen in the figure, an air flow port 26 is provided on the top of the vacuum box 1, and an electric valve is provided on the air flow port 26. The air flow port 26 is used to extract air and inject nitrogen.

[0045] The present invention firstly combines the inspection door 5, the operating door 14 and the vacuum box 1 to ensure that the vacuum box 1 has the prerequisite of providing a sealed environment for the anhydrous rare earth bromide packaging operation, and then combines the air flow port 26 to ensure the extraction of gas in the vacuum box 1 and the injection of nitrogen, thereby solving the problem of how to package the anhydrous rare earth bromide in a vacuum environment; the present invention separately combines the inspection door 5, the operating door 14 and the operating gloves 13 of the transparent cloth 12 to ensure that normal packaging operations can be performed in a vacuum environment by the staff using only the operating gloves 13, without the need to frequently open the inspection door 5, thereby reducing the frequent steps of exhausting and filling with nitrogen; on the other hand, the present invention combines a locking mechanism to ensure that the operating door 14 is effectively locked and unlocked.

[0046] In Example 2, the air flow port 26 is connected to a vacuum environment manufacturing mechanism for injecting nitrogen into the vacuum box 1 and extracting air from the vacuum box 1. In this example, the following two implementations of the vacuum environment manufacturing mechanism are exemplified.

[0047] Implementation method 1 of the vacuum environment manufacturing mechanism includes a vacuum pump and a nitrogen tank. The vacuum pump and nitrogen tank can be directly used as existing products available on the market and will not be described in detail here. The air inlet of the vacuum pump is connected to the air flow port 26, and the air outlet of the nitrogen tank is also connected to the air flow port 26. When this implementation method is used, when the inspection door 5 and the operating door 14 are blocking the vacuum box 1, the vacuum pump is first used to extract the air from the vacuum box 1 to the outside world, and then nitrogen is injected into the vacuum box 1 using the nitrogen tank until the vacuum box 1 is completely in a vacuum state. This implementation method is not shown in the figure.

[0048] The second implementation method of the vacuum environment manufacturing mechanism is as follows: Figure 5 , shows a schematic diagram of the assembly structure of the vacuum environment manufacturing mechanism of the second embodiment. It can be seen from the figure that the vacuum environment manufacturing mechanism includes an air cavity 27. The internal space of the air cavity 27 is larger at the top and smaller at the bottom. The air cavity 27 is placed in the air flow port 26, and the outer wall of the air cavity 27 is fixedly connected to the air flow port 26 in a fitting manner. A nitrogen cavity is provided in the air cavity 27, wherein the nitrogen cavity is composed of a sliding cavity 28 and a fixed cavity 29. The peripheral flange of the fixed cavity 29 is fixedly connected (for example, welded) to the inner wall of the air cavity 27 in a fitting manner. The appearance structure diagram of the fixed cavity 29 is shown in FIG. Figure 6As shown in the figure; the top of the fixed cavity 29 is formed with an opening, and one or more first through holes 30 are formed on the peripheral flange of the fixed cavity 29 (for example, the number of the first through holes 30 is set to two); the sliding cavity 28 is arranged on the inner side of the fixed cavity 29, and bosses 31 are formed on the two side walls of the bottom of the fixed cavity 29, and the sliding cavity 28 is slidably placed between the two bosses 31 in a fitting manner; the top of the sliding cavity 28 is fixedly connected to a packaging plate 32, and sliding cavities 33 are formed on the two side walls of the top of the fixed cavity 29, and the left and right side wings of the packaging plate 32 slide through the sliding cavities 33 on both sides respectively; a first elastic component 34 (such as a spring, etc.) is connected between the packaging plate 32 and the boss 31, and the packaging plate 32 is placed at the folding part 35 of the air cavity 27 chamber, and it is defined at the same time: when the first elastic component 34 is in a natural state, the packaging plate 32 is against the folding part 35 of the air cavity 27 chamber, and the air The cavity 27 is divided into an upper cavity and a lower cavity; a nitrogen inlet 36 is formed on the packaging plate 32, and a nitrogen outlet 37 is formed on the left and right sides of the sliding cavity 28 respectively; a second through hole 38 is formed on the two bosses 31 of the fixed cavity 29 respectively, and when the first elastic component 34 is gradually compressed, the first through hole 30 and the second through hole 38 can be opposite to each other and connected; a nitrogen tank is provided at the top of the air cavity 27, and an air supply pipe 39 of the nitrogen tank passes through the top of the air cavity 27 in a fitting manner and is placed in the air cavity 27, and the outlet of the air supply pipe 39 of the nitrogen tank is opposite to and adapted to the nitrogen inlet 36; a vacuum pump is also provided at the top of the air cavity 27, and an exhaust pipe 40 of the vacuum pump is connected to the top of the air cavity 27; a driving mechanism is connected to the air supply pipe 39 of the nitrogen tank, which is used to drive the air supply pipe 39 of the nitrogen tank to move closer to or away from the nitrogen inlet 36, so that the outlet of the air supply pipe 39 fits or loses contact with the nitrogen inlet 36. The specific structure of the driving mechanism is as follows, but is not limited to the following two implementations.

[0049] Specific implementation of the driving mechanism, see Figure 7, shows a schematic diagram of the assembly structure of the first embodiment of the drive mechanism. As can be seen from the figure, the drive mechanism includes an electric telescopic rod 41, which can be an existing product, such as the model SY-A02B. The cylinder of the electric telescopic rod 41 is fixedly connected to the top of the air chamber 27, and the shaft of the electric telescopic rod 41 is fixedly connected to the nitrogen tank's air supply pipe 39. When the drive mechanism is in use, the electric telescopic rod 41 is first activated. The shaft of the electric telescopic rod 41 gradually drives the nitrogen tank's air supply pipe 39 toward the nitrogen inlet 36 until the outlet of the air supply pipe 39 contacts and abuts against the nitrogen inlet 36. Then, the electric telescopic rod 41 is continued to be used to push the air supply pipe 39, thereby forcing the sliding cavity 28 to move downward under the action of the air supply pipe 39; as the packaging plate 32 of the sliding cavity 28 moves downward, the packaging plate 32 and the folded portion 35 of the air cavity 27 gradually separate, and a gap is generated between the folded portion 35 of the packaging plate 32; before the nitrogen outlet 37 of the sliding cavity 28 and the second through hole 38 of the fixed cavity 29 are in contact, the operation of the electric telescopic rod 41 is stopped; at this time, the vacuum pump is started, and the air retained in the vacuum box 1 is discharged along direction a (as shown in FIG. Figure 8 The use diagram of the driving mechanism embodiment 1 shown in FIG Figure 1 ) flows through the air cavity 27, the gap between the packaging plate 32 and the folded part 35, and is then discharged to the outside through the vacuum pump. Finally, when the air in the vacuum box 1 is completely evacuated, the electric telescopic rod 41 is activated. Under the indirect driving action of the electric telescopic rod 41, the nitrogen outlet 37 of the sliding cavity 28 gradually contacts and faces the second through hole 38 of the fixed cavity 29; at this time, the nitrogen tank is opened, and the nitrogen is sequentially discharged along the direction b (such as Figure 9 The use diagram of the driving mechanism embodiment 1 shown in FIG Figure 2 ) passes through the sliding cavity 28, the nitrogen outlet 37, the second through hole 38, and the air cavity 27 in sequence, thereby entering the vacuum box 1, forming a vacuum environment in the vacuum box 1.

[0050] Specific implementation method 2 of the driving mechanism, refer to Figure 10, which shows a schematic diagram of the assembly structure of the second embodiment of the driving mechanism. It can be seen from the figure that the driving mechanism includes a cantilever 42, and the L-shaped cantilever 42 is fixedly connected to the top of the outer wall of the vacuum box 1 by welding; a sliding arm 43 is vertically slidably connected to the cantilever 42, and the bottom of the sliding arm 43 is fixedly connected to the air supply pipe 39, and the top of the sliding arm 43 is fixedly connected to a wedge block 44, and the side end of the wedge block 44 is connected to a second elastic component 46 (such as a spring, etc.) through a protrusion 45, and the free end of the second elastic component 46 is fixedly connected to the cantilever 42; Maintenance An L-shaped pressure rod 47 is fixedly connected to the top of the door 5, with the free end of the pressure rod 47 facing the sloped surface of the wedge block 44. Furthermore, it is defined that, in the first stage, as the sealing frame 6 of the access door 5 gradually contacts the access passage 4, the pressure rod 47 forces the sliding arm 43 and the air supply pipe 39 to move downward, creating a gap between the packaging plate 32 and the fold 35, and disconnecting the nitrogen outlet 37 from the second through hole 38. In the second stage, when the sealing frame 6 of the access door 5 contacts the access passage 4, the nitrogen outlet 37 connects to the second through hole 38. The function of the second elastic component is to move the wedge block 44, the sliding arm 43, and the air supply pipe 39 upward and return them to their original positions after the pressure rod 47 disengages from the wedge block 44.

[0051] Example 3: Before the sliding cavity 28 is used, in order to prevent air from entering the sliding cavity 28, the present invention further optimizes the driving mechanism. The specific optimization scheme is as follows.

[0052] refer to Figure 12 , shows a partial structural schematic diagram of the optimized drive mechanism. As can be seen from the figure, the drive mechanism also includes a blocking unit, which specifically includes a blocking plate 48. The blocking plate 48 is positioned below the nitrogen inlet 36 and can block the nitrogen inlet 36. A fifth elastic component 49 (e.g., a spring) is connected between the blocking plate 48 and the packaging plate 32. A stopper 50 is formed on the top of the blocking plate 48, and a blocking groove 51 is formed at the outlet of the air supply pipe 39. The block 50 and the blocking groove 51 are mutually adapted. An air channel 52 is formed at the outlet of the air supply pipe 39 and is connected to the outlet of the air supply pipe 39. During use, as the air supply pipe 39 gradually moves downward, the block 50 gradually contacts the blocking groove 51. As the air supply pipe 39 continues to move downward, the blocking plate 48 is forced downward and forms a gap with the packaging plate 32 until the outlet of the air supply pipe 39 is fully adapted to the nitrogen inlet 36. At this time, the nitrogen tank is opened, and the nitrogen flows through the gap and enters the sliding cavity 28.

[0053] In Example 4, in order to ensure that the vacuum pump can be started in time before the nitrogen outlet 37 is connected to the second through hole 38, the present invention further optimizes the vacuum pump. The specific optimization scheme is as follows.

[0054] refer to Figure 13 , shows a schematic diagram of the partial structure of the optimized vacuum pump. It can be seen from the figure that the vacuum pump includes a vacuum pump body (for example, a vacuum pump of model FY-1H), the vacuum pump body is electrically connected to an electric switch, and the electric switch is fixedly connected to the inner wall of the air cavity 27 below the fold portion 35; specifically, further combined with Figure 14 , the electric switch includes a sleeve 53 fixedly connected to the air cavity 27, a copper conductive rod 54 provided in the sleeve 53, and a copper conductive block 55 slidably sleeved on the sleeve 53; the copper conductive rod 54 is connected to the sleeve 53 via a sixth elastic component 56 (e.g., a spring). When the sixth elastic component 56 is in a natural state, the copper conductive rod 54 and the copper conductive block 55 are separated from and opposite to each other; the copper conductive block 55 is arranged on one side of the outer side of the sleeve 53 to form a sliding surface, which is opposite to the lower end of the packaging plate 32; the copper conductive block 55 is connected to a positive wire 57, and the copper conductive rod 54 is connected to a negative wire 58. The positive wire 57 and the negative wire 58 are respectively connected to the negative and positive electrodes of the vacuum pump body; and it is also specified that when a gap is generated between the packaging plate 32 and the folded portion 35, the copper conductive block 55 contacts the copper conductive rod 54. During use, as the packaging plate 32 moves downward, due to the principle of the wedge block 44, the packaging plate 32 presses the copper conductive block 55 towards the copper conductive rod 54 until the copper conductive block 55 and the copper conductive rod 54 are connected, so that the passage of the vacuum pump body is opened, and the vacuum pump body is turned on and vacuum is drawn; once the packaging plate 32 slides over the sliding surface of the copper conductive block 55, under the action of the sixth elastic component 56, the copper conductive block 55 returns to its original position, and the vacuum pump body stops running (it is worth noting that when the packaging plate 32 moves downward and contacts the copper conductive block 55, the residence time of the packaging plate 32 on the surface of the copper conductive block 55 can be increased at this time, so that the vacuum pump body can be fully vacuumed; and when the packaging plate 32 moves upward and contacts the copper conductive block 55, the packaging plate 32 can quickly pass through the surface of the copper conductive block 55, reducing nitrogen loss).

[0055] Example 5: In the process of preparing anhydrous rare earth bromide, a key step involved is how to perform packaging operations under a vacuum environment. Applying the above Examples 1-4, this example also provides a method for preparing anhydrous rare earth bromide for vacuum packaging of anhydrous rare earth bromide. The specific steps are as follows:

[0056] Step 1: Open the inspection door 5 of the vacuum box 1 by pulling the inspection door 5, and place multiple packaging bags in the vacuum box 1 in advance; close the inspection door 5 and the operating door 14, use the locking mechanism to block and lock the operating port 9, and use the elastic deformation of the spring body to fit the inspection door 5 on the vacuum box 1, thereby achieving the blocking and locking of the inspection channel 4.

[0057] Step 2: Under the driving action of the driving mechanism, the vacuum environment manufacturing mechanism successively realizes vacuuming and nitrogen filling of the vacuum box 1.

[0058] Step 3: After the vacuum environment is completely achieved in the vacuum box 1 and the anhydrous rare earth bromide needs to be packaged, the locking mechanism is activated and the operating door 14 is opened. The staff member extends his hands into the operating gloves 13 on the transparent baffle 12, manually opens the packaging bag and places it under the feed port 3. The electric valve on the feed port 3 is opened, and the anhydrous rare earth bromide material falls from the feed port 3 and enters the packaging bag. The staff member manually ties the opening of the packaging bag to complete the single-bag vacuum packaging operation. Note: The silo connected to the feed port 3 is also a vacuum environment, which is not the focus of protection of the present invention and will not be described here.

Claims

1. An anhydrous rare earth bromide packaging system, characterized by: The utility model comprises a vacuum box body, which is provided with a feed port and an air flow port, and the maintenance passage of the vacuum box body is provided with a sealing packaging mechanism; the sealing packaging mechanism comprises an maintenance door, which is slidably connected to the maintenance passage; the maintenance door is provided with a transparent plate, and the operation port of the maintenance door is provided with a transparent blocking cloth, and the transparent blocking cloth is provided with operating gloves; the operation door is sealed on the operation port by a locking mechanism; the operation door is connected to a locking mechanism, and the locking mechanism is used to lock the operation door and the operation port of the skeleton; the utility model also comprises a vacuum environment manufacturing mechanism, and the gas of the vacuum environment manufacturing mechanism The cavity is connected with the air flow port, and a nitrogen cavity is provided in the air cavity; a blocking unit is provided on the nitrogen cavity, and when the blocking unit is adapted to the air supply pipe of the nitrogen tank, the blocking unit is connected and the nitrogen in the nitrogen tank can enter the interior of the nitrogen cavity; in the process of the air supply pipe pushing the nitrogen cavity downward, the top cavity and the bottom cavity are first connected and the nitrogen cavity is connected with the air cavity, at which time the air cavity is evacuated until the sliding cavity, the fixed cavity and the air cavity are connected, at which time the air cavity is filled with nitrogen; after the air supply pipe is separated from the nitrogen cavity, the nitrogen cavity can divide the air cavity of the vacuum environment manufacturing mechanism into the top cavity and the bottom cavity The air cavity is evacuated by a vacuum pump; the air cavity is placed in the air flow port and the outer wall of the air cavity is fixedly connected to the air flow port; the nitrogen cavity includes a sliding cavity and a fixed cavity, the peripheral flange of the fixed cavity is fixedly connected to the inner wall of the air cavity, an opening is formed on the top of the fixed cavity, and one or more first through holes are provided on the peripheral flange of the fixed cavity; the sliding cavity is placed in the fixed cavity, and the packaging plate on the top of the sliding cavity is slidably connected to the fixed cavity and elastically connected by a first elastic component; the packaging plate is located at the fold of the air cavity chamber, and when the first elastic component is in a natural state, the packaging plate The plate and the fold of the air cavity are offset against each other; a blocking unit is provided on the nitrogen inlet of the packaging plate, the sliding cavity is provided with at least one nitrogen outlet, and the fixed cavity is provided with at least one second through hole. After the first elastic component is compressed, the first through hole and the second through hole can be formed in a one-to-one relationship and connected; a nitrogen tank and a vacuum pump are provided on one side of the air cavity, and the air supply pipe of the nitrogen tank is movably passed through the top of the air cavity and is placed in the air cavity; the exhaust pipe of the vacuum pump is connected to the top of the air cavity; the air supply pipe of the nitrogen tank is driven by a driving mechanism to move the air supply pipe of the nitrogen tank close to or away from the nitrogen inlet.

2. The anhydrous rare earth bromide packaging system according to claim 1, characterized in that: A longitudinally extending slide groove is formed on the bottom of the vacuum box body. The guide plate is slidably connected to the slide groove, and the other end of the guide plate is fixedly connected to the inspection door.

3. The anhydrous rare earth bromide packaging system according to claim 1, characterized in that: A spring body is connected between the inspection door and the vacuum box body.

4. The anhydrous rare earth bromide packaging system according to claim 1, characterized in that: The locking mechanism includes a bearing seat, which is fixedly connected to the frame, and the bearing seat is fixedly connected to the first support plate and the second support plate, the pin shaft of the first support plate is concentrically fixedly connected to the driving gear, and the pin shaft of the second support plate is concentrically fixedly connected to the driven gear, and the driving gear and the driven gear are meshed and linked; the pin shaft of the first support plate is fixedly connected to the pulling arm, the pulling arm and the first support plate are connected to the third elastic component, and the pin shaft of the second support plate is fixedly connected to the extrusion seat; when the third elastic component is in a natural state, the extrusion seat is used to form an extrusion lock on the operating door.

5. The anhydrous rare earth bromide packaging system according to claim 4, characterized in that: The locking mechanism also includes a locking pin, which is movably connected to the extrusion seat. A fourth elastic component is connected between the locking pin and the extrusion seat, and a socket is formed on the pull arm; after the extrusion seat is out of contact with the operating door, the locking pin can be plugged into and adapted to the socket.

6. The anhydrous rare earth bromide packaging system according to claim 1, characterized in that: The driving mechanism comprises an electric telescopic rod, a cylinder portion of the electric telescopic rod is fixedly connected to the top of the air cavity, and a shaft portion of the electric telescopic rod is fixedly connected to the air supply pipe of the nitrogen tank.

7. A method for preparing anhydrous rare earth bromide, characterized in that: The anhydrous rare earth bromide packaging system according to claim 1 comprises the following steps: S1, the inspection door of the vacuum box is opened by pulling the inspection door, and multiple packaging bags are placed in the vacuum box in advance; the inspection door and the operating door are closed, the operating opening is blocked and locked by the locking mechanism, and the inspection door is attached to the vacuum box by the elastic deformation of the spring body, thereby achieving the blocking and locking of the inspection passage; S2, under the driving action of the driving mechanism, the vacuum environment manufacturing mechanism successively realizes vacuuming and nitrogen filling of the vacuum box; S3, when the vacuum environment is completely achieved in the vacuum box and the anhydrous rare earth bromide needs to be packaged; at this time, the locking mechanism is opened and the operating door is opened, and the staff puts their hands into the operating gloves on the transparent baffle, and can manually open the packaging bag and place it under the feed port; open the electric valve on the feed port, and the anhydrous rare earth bromide material falls from the feed port and enters the packaging bag, and the staff manually ties the opening of the packaging bag to complete the single bag vacuum packaging operation.

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