Multi-stage grinding equipment and method for processing hydrogen storage materials

Abstract

The present invention provides a multi-stage grinding device and method for processing hydrogen storage materials, which belongs to the technical field of hydrogen storage material grinding; it comprises a grinding cylinder, a filter plate is fixed in the middle of the inner wall of the grinding cylinder, a coarse grinding chamber and a fine grinding chamber are separated by the filter plate in the grinding cylinder, a feed port is provided at the end of the grinding cylinder, the feed port is connected to the coarse grinding chamber, and a discharge port is provided on the outer wall of the grinding cylinder corresponding to the fine grinding chamber. The present invention provides a mounting plate, a guide plate, a sealing plate and a guide bar. When the material is ground in the coarse grinding chamber of the grinding cylinder, when the grinding ball approaches the filter plate, the grinding ball contacts the guide bar. The rotating guide bar guides the grinding ball and the uncoarsely ground material away from the filter plate, preventing the grinding ball and the uncoarsely ground material from affecting the coarsely ground material from passing through the filter plate, reducing the time that the coarsely ground material stays in the coarse grinding chamber, and making it easy for the coarsely ground material to pass through the filter plate into the fine grinding chamber for fine grinding, thereby improving the grinding efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen storage material grinding, and in particular to a multi-stage grinding device and method for processing hydrogen storage materials. Background Art

[0002] Hydrogen storage materials are a type of functional material that can store hydrogen under specific temperature and hydrogen pressure conditions by physical adsorption, chemical bonding or forming solid solutions, and release hydrogen when needed. They include alloy hydrogen storage materials (such as rare earth series, magnesium series, etc., which store hydrogen by forming hydrides between metals and hydrogen), carbonaceous hydrogen storage materials (such as activated carbon, carbon nanotubes, which rely on high specific surface area to physically adsorb hydrogen), coordinated hydrides (such as borohydrides, aluminum hydrides, which store hydrogen by hydrogen-containing anion compounds), metal organic frameworks (MOFs, which use Types such as porous crystal structures that can reversibly adsorb hydrogen play a key role in hydrogen energy storage, transportation, conversion and related energy fields. When hydrogen storage materials are produced, the raw materials must first be ground into powder using a ball mill, and then processed after grinding. The ball mill is mainly composed of a grinding cylinder and grinding balls. If it is multi-stage grinding, a filter plate is also provided in the middle of the grinding cylinder to allow the material to be coarsely ground in the coarse grinding bin first. After the coarse grinding is completed, the material enters the fine grinding bin through the filter plate for fine grinding, and then is discharged from the discharge port.

[0003] During the grinding process in the coarse grinding chamber, the material and the grinding balls move slowly toward the filter plate synchronously. When the grinding balls gradually accumulate on the filter plate, the grinding balls will block the material from passing through the filter holes of the filter plate, making it difficult for the coarsely ground material to quickly pass through the filter plate and enter the fine grinding chamber. The grinding efficiency needs to be improved. Therefore, the present application provides a multi-stage grinding equipment and method for processing hydrogen storage materials to meet the needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multi-stage grinding device and method for processing hydrogen storage materials to solve the problem that the grinding efficiency needs to be improved.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A multi-stage grinding device and method for processing hydrogen storage materials includes a grinding cylinder, a filter plate fixed to the middle of the inner wall of the grinding cylinder, a coarse grinding chamber and a fine grinding chamber separated by the filter plate in the grinding cylinder, a feed port opened at the end of the grinding cylinder, the feed port communicating with the coarse grinding chamber, a discharge port opened on the outer wall of the grinding cylinder corresponding to the fine grinding chamber, a cover detachably connected to the discharge port, and further comprising:

[0007] A material guiding mechanism, wherein the height of the material guiding mechanism is greater than the diameter of the grinding balls, and the material guiding mechanism includes several mounting plates fixed to the inner wall of the grinding cylinder, and the several mounting plates are arranged in a circular array about the center of the grinding cylinder, and a guide plate is fixed to the side of the mounting plate, and the top of the guide plate is detachably connected to a sealing plate, and a limiting rod is fixed to the top of the mounting plate, and the top of the limiting rod is fitted to the bottom of the sealing plate, and the surface of the limiting rod is provided with several guide strips with the same interval and inclination, and material channels are formed between adjacent guide strips and between the guide strips near the bottom of the sealing plate and the bottom of the sealing plate. The height of the material channel is the same as the aperture size of the filter plate, and the sides of the sealing plate, the guide plate and the mounting plate are all fitted to the side of the filter plate close to the feed inlet, and the other side of the guide strip is fitted to the inner wall of the guide plate.

[0008] Preferably, the guide plate consists of a guide portion and a connecting portion, and the inclination direction of the guide portion is opposite to the inclination direction of the guide strip.

[0009] Preferably, the sealing plate, the guide strip and the mounting plate are all provided with a stepped surface on a side away from the guide portion.

[0010] Preferably, a slope is provided on a side of the step surface away from the guide portion, and the inclination angle of the slope is opposite to the inclination angle of the guide strip.

[0011] Preferably, the surface of the grinding cylinder is provided with an anti-stuck component, which includes a driving member installed on the surface of the grinding cylinder. The output end of the driving member movably passes through the grinding cylinder and the mounting plate and fits on the surface of the guide bar close to the mounting plate. Springs are clamped between adjacent guide bars and the guide bar close to the sealing plate and the sealing plate, and the springs are sleeved on the surface of the limit rod.

[0012] Preferably, the driving member is an electric push rod.

[0013] Preferably, the guide bar surface is provided with several protective components, which include small rings and large rings. Several small rings are fixed on the top of the guide bar, and several large rings are respectively fixed on the bottom of the sealing plate and the guide bar. The large rings are movably sleeved on the surface of the small rings. Both the large rings and the small rings are sleeved on the surface of the limit rod, and the spring is located inside the large rings and the small rings.

[0014] Preferably, a guiding surface is provided at the bottom edge of the large ring, and the guiding surface is used to guide the large ring to be inserted into the surface of the small ring.

[0015] Preferably, the side of the mounting plate close to the inner wall of the grinding cylinder is arranged as a curved surface, so as to reduce the distance between the mounting plate and the inner wall of the grinding cylinder.

[0016] A multi-stage grinding method for processing hydrogen storage materials, applied to the multi-stage grinding equipment for processing hydrogen storage materials as described above, comprises the following steps:

[0017] S1: The material is passed into the coarse grinding chamber of the grinding cylinder from the feed port;

[0018] S2: Start the motor, which drives the grinding cylinder to rotate, and grinds the material in the coarse grinding chamber through the grinding balls;

[0019] S3: When the material in the coarse grinding chamber is being ground, the grinding balls are kept away from the filter plate by the material guide mechanism, and the ground material is guided through the filter plate into the fine grinding chamber for further grinding;

[0020] S4: After the material is ground in the fine grinding chamber, it is discharged from the discharge port.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] In the above scheme, by arranging the mounting plate, the guide plate, the sealing plate and the guide bar, the material is ground in the coarse grinding chamber of the grinding cylinder. When the grinding ball approaches the filter plate, the grinding ball contacts the guide bar. The rotating guide bar guides the grinding ball and the uncoarsely ground material away from the filter plate, so as to prevent the grinding ball and the uncoarsely ground material from affecting the coarsely ground material from passing through the filter plate, reduce the time that the coarsely ground material stays in the coarse grinding chamber, and make it easier for the coarsely ground material to pass through the filter plate into the fine grinding chamber for fine grinding, thereby improving the grinding efficiency.

[0023] By setting the guide plate, the coarsely ground material can pass between the guide bars and flow smoothly toward the filter plate after being guided by the guide plate, so that the coarsely ground material can pass smoothly from the filter plate, thereby further improving the grinding efficiency.

[0024] By setting the step surface, the guide bar guides the grinding balls away from the filter plate, and the grinding balls roll on the guide bar. When the grinding balls fall from the step surface, the distribution state and movement trajectory of the grinding balls will be changed, causing collisions between the grinding balls and between the grinding balls and the materials in the coarse grinding chamber, thereby improving the grinding effect of the materials.

[0025] By setting the inclined surface, the inclination direction of the inclined surface is opposite to the inclination direction of the guide bar. In the process of the guide bar guiding the grinding balls away from the filter plate, the distribution state and movement trajectory of the grinding balls can be changed again through the inclined surface, which promotes the mutual collision between the grinding balls and between the grinding balls and the materials in the coarse grinding bin, thereby further improving the grinding effect of the materials. At the same time, the inclined surface increases the height of the grinding balls falling from one step surface to the next step surface, making the grinding effect of the grinding balls stronger.

[0026] By setting up an anti-stuck component, when the material is stuck in the gap between the guide bars, the material guide mechanism rotates to the top position of the inner wall of the grinding cylinder, and the driving part is started to push the guide bar close to the mounting plate to move horizontally, so that multiple groups of guide bars are close to each other. At this time, the stuck material will be squeezed and crushed by the guide bars. The crushed material falls into the guide plate and slides along the guide plate to the surface of the filter plate, and finally enters the fine grinding chamber through the filter plate. The anti-stuck component not only eliminates the obstruction of material flow when the guide bar is stuck, but also performs secondary grinding and crushing on the material through the crushing process, further improving the overall grinding efficiency.

[0027] By setting up a protective component, when the driving part retracts, the spring can drive the guide bar to reset. The protective component can prevent the material from contacting the spring, so that the spring can stably play a rebound role and ensure the overall smooth operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which constitute part of this specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and enable those skilled in the relevant art to make and use the present disclosure.

[0029] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0030] Figure 2 This is a cross-sectional view of the grinding cylinder of the present invention;

[0031] Figure 3 This is a schematic diagram of the three-dimensional structure of the distribution state of the material guiding mechanism of the present invention;

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the material guiding mechanism of the present invention;

[0033] Figure 5 This is a schematic diagram of the three-dimensional structure of the mounting plate of the present invention in an installed state;

[0034] Figure 6 This is a schematic diagram of the three-dimensional structure of the drive member of the present invention in an installed state;

[0035] Figure 7 This is a cross-sectional view of the limiting rod of the present invention;

[0036] Figure 8 This is a schematic diagram of the three-dimensional structure of the connection between the guide strip and the limiting rod of the present invention;

[0037] Figure 9 This is a schematic diagram of the three-dimensional structure of the guide portion of the present invention;

[0038] Figure 10 A top view of the guide strip of the present invention;

[0039] Figure 11 This is a schematic diagram of the three-dimensional structure of the small ring of the present invention;

[0040] Figure 12 It is a schematic diagram of the three-dimensional structure of the connecting portion of the present invention.

[0041] In the figure: 1. Grinding cylinder; 2. Filter plate; 3. Feed port; 4. Discharge port; 5. Coarse grinding chamber; 6. Fine grinding chamber; 7. Material guide mechanism; 8. Mounting plate; 9. Guide plate; 10. Closing plate; 11. Limit rod; 12. Guide strip; 13. Step surface; 14. Inclined surface; 15. Anti-stuck component; 16. Drive part; 17. Spring; 18. Protective component; 19. Large ring; 20. Small ring; 21. Guide part; 22. Connecting part.

[0042] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0043] The following describes in detail a multi-stage grinding apparatus and method for processing hydrogen storage materials provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative methods for implementing known techniques. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0044] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0045] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0046] like Figures 1-12As shown, the embodiment of the present invention provides a multi-stage grinding device and method for processing hydrogen storage materials, including a grinding cylinder 1, a bracket is provided at the bottom of the grinding cylinder 1, the bracket is used to support the grinding cylinder 1, the grinding cylinder 1 can rotate on the bracket, and a motor and a reducer are also provided on the bracket. The motor drives the reducer to rotate, and the reducer drives the driving gear to rotate. The driving gear is engaged with the driven gear on the grinding cylinder 1, so that the driving gear can drive the driven gear to rotate during rotation, and the driven gear can drive the grinding cylinder 1 to rotate. A filter plate 2 is fixed to the middle of the inner wall of the grinding cylinder 1, and the grinding cylinder 1 is separated by the filter plate 2 into a coarse grinding chamber 5 and a fine grinding chamber 6. A feed port 3 is provided at the end of the grinding cylinder 1, and the feed port 3 is connected to the coarse grinding chamber 5. A discharge port 4 is provided on the outer wall of the grinding cylinder 1 corresponding to the fine grinding chamber 6, and a cover is detachably connected to the discharge port 4.

[0047] The material guide mechanism 7 has a height greater than the diameter of the grinding ball. The material guide mechanism 7 includes several mounting plates 8 fixed to the inner wall of the grinding cylinder 1. Several screws are fixed to the side of the mounting plate 8 close to the inner wall of the grinding cylinder 1. The screws move through the grinding cylinder 1. Nuts are screwed on the screws on the outer surface of the grinding cylinder 1 to fix the mounting plate 8 to the inner wall of the grinding cylinder 1. Several mounting plates 8 are arranged in a circular array about the center of the grinding cylinder 1. A guide plate 9 is fixed to the side of the mounting plate 8. The mounting plate 8 and the guide plate 9 can be fixedly connected by welding or by bolting. The top of the guide plate 9 is detachably connected to the sealing plate 10. The sides of the sealing plate 10 and the guide plate 9 are provided with mounting seats. The screws pass through the mounting seats of the sealing plate 10 and are screwed into the mounting seats of the guide plate 9 to fix the sealing plate 10. An internal thread column is provided on the surface of the mounting plate 8. The internal thread column is against the surface of the sealing plate 10. The sealing plate 10 is passed through a screw and screwed into the internal thread column to reposition the sealing plate 10. A limiting rod 11 is fixed to the top of the mounting plate 8. The top of the limiting rod 11 is fitted to the bottom of the sealing plate 10. A groove is provided at the bottom of the sealing plate 10. The limiting rod 11 The top of the limit rod 11 is against the groove, which can limit the top of the limit rod 11 to prevent the limit rod 11 from bending. The surface of the limit rod 11 is provided with a plurality of guide strips 12 with the same interval and inclination. When installing, first fix the mounting plate 8, then sleeve the guide strips 12 on the limit rod 11 in sequence, and then install the sealing plate 10. Material channels are formed between adjacent guide strips 12 and between the guide strips 12 near the bottom of the sealing plate 10 and the bottom of the sealing plate 10. The height of the material channel is the same as the aperture of the filter plate 2. The side of the sealing plate 10, the guide plate 9 and the mounting plate 8 are The surfaces are all fitted on the side of the filter plate 2 close to the feed port 3. Although the two ends of the guide bar 12 are fitted with the opposite sides of the guide plate 9 and the filter plate 2, the guide bar 12 can still slide up and down between the guide plate 9 and the filter plate 2. When the inclined guide bar 12 rotates with the grinding cylinder 1, the inclination angle is used to guide the grinding balls and unground materials away from the filter plate 2, avoiding the accumulation of grinding balls on the filter plate 2, reducing the residence time of the coarsely ground materials in the coarse grinding bin 5, and improving the circulation efficiency. The guide plate 9 guides the coarsely ground materials to flow quickly to the filter plate 2, ensuring that the materials enter the fine grinding bin 6 in time, and further improving the overall grinding efficiency.

[0048] like Figure 4 and Figure 9As shown, in this embodiment, the guide plate 9 is composed of a guide portion 21 and a connecting portion 22. The inclination direction of the guide portion 21 is opposite to the inclination direction of the guide bar 12. When the coarsely ground material contacts the guide portion 21 through the gap of the guide bar 12, the guide portion 21 can change the flow direction of the material, so that the material moves toward the filter plate 2, avoiding ineffective sliding of the material along the inner wall of the grinding cylinder 1, ensuring that the material passes through the filter plate 2 quickly and smoothly into the fine grinding chamber 6, further improving the diversion efficiency. The shell surrounded by the guide portion 21, the connecting portion 22, the mounting plate 8 and the sealing plate 10 can avoid the coarsely ground material from contacting the guide portion 21, which would affect the coarsely ground material from passing through the filter plate 2.

[0049] like Figure 4 and Figure 9 As shown, in this embodiment, the sealing plate 10, the guide bar 12 and the mounting plate 8 are all provided with a step surface 13 on the side away from the guide portion 21. When the grinding balls slide along the surface of the guide bar 12, after the grinding balls slide from one step surface 13 to the next step surface 13, the height difference can change the rolling speed and direction of the grinding balls, thereby promoting collisions between the grinding balls and between the grinding balls and the materials, increasing the number of impacts during the rough grinding process, and improving the material crushing effect. At the same time, the step surface 13 makes the grinding balls distributed in a stepped manner on the guide bar 12, avoiding the grinding balls from being concentrated in a certain area.

[0050] like Figures 9-11 As shown, in this embodiment, a slope 14 is provided on the side of the step surface 13 away from the guide portion 21. The inclination angle of the slope 14 is opposite to the inclination angle of the guide bar 12. When the grinding ball falls from the step surface 13, the grinding ball further changes its movement direction after passing through the slope 14, thereby enhancing the collision force and randomness between the grinding ball and the material and improving the rough grinding efficiency.

[0051] like Figure 6-Figure 9 and Figure 12As shown, in this embodiment, the surface of the grinding cylinder 1 is provided with an anti-stuck component 15, and the anti-stuck component 15 includes a driving member 16 installed on the surface of the grinding cylinder 1. The output end of the driving member 16 movably passes through the grinding cylinder 1 and the mounting plate 8 and is attached to the surface of the guide bar 12 close to the mounting plate 8. The adjacent guide bars 12 and the guide bars 12 close to the sealing plate 10 are all clamped with springs 17. The spring 17 is sleeved on the surface of the limit rod 11. When the material is stuck in the gap between the guide bars 12, the driving member 16 pushes the guide bars 12 to move closer to each other, squeezes the stuck material to crush it, and the crushed material passes through the guide bar 12. The flow plate 9 enters the fine grinding chamber 6, which not only solves the blockage problem, but also performs secondary grinding on the stuck material to avoid material waste. The spring 17 drives the guide bar 12 to reset after the driving member 16 retracts, ensuring the continuous and stable operation of the material guiding mechanism 7, reducing manual intervention, and improving the degree of automation of the equipment. When installing the spring 17, first put the first guide bar 12 on the limit rod 11, and then put the spring 17 on the limit rod 11, and then put the next guide bar 12 on the limit rod 11 until all the guide bars 12 are installed, and the driving member 16 is fixed to the surface of the grinding cylinder 1 through the mounting seat.

[0052] like Figure 12 As shown, in this embodiment, the driving member 16 is an electric push rod, and a conductive slip ring is provided on the surface of the grinding cylinder 1. The driving member 16 is powered by the conductive slip ring and an external power supply, which will not affect the rotation of the driving member 16.

[0053] like Figure 7 and Figure 8 As shown, in this embodiment, a plurality of protective components 18 are provided on the surface of the guide bar 12. The protective components 18 include a small ring 20 and a large ring 19. The plurality of small rings 20 are fixed on the top of the guide bar 12, and the plurality of large rings 19 are respectively fixed on the bottom of the sealing plate 10 and the guide bar 12. The large ring 19 is movably sleeved on the surface of the small ring 20. The large ring 19 and the small ring 20 are both sleeved on the surface of the limit rod 11. The spring 17 is located in the large ring 19 and the small ring 20. The large ring 19 and the small ring 20 form a sleeve structure, which wraps the spring 17 outside the limit rod 11 to avoid grinding. During the grinding process, material particles enter the gap of the spring 17, preventing the spring 17 from getting stuck or rusting, ensuring its stable rebound performance, and extending the service life of the equipment. The large ring 19 and the small ring 20 slide together to provide guidance for the translation of the guide bar 12, reduce the shaking of the guide bar 12 on the limit rod 11, and improve the smoothness of the movement of the anti-jamming component 15. During installation, after the first guide bar 12 is sleeved on the limit rod 11, and the next guide bar 12 is sleeved on the limit rod 11, the large ring 19 of the next guide bar 12 is just sleeved on the surface of the small ring 20 at the top of the previous guide bar 12.

[0054] like Figure 8As shown, in this embodiment, a guide surface is provided at the bottom edge of the large ring 19, and the guide surface is used to guide the large ring 19 to be inserted into the surface of the small ring 20. The guide surface facilitates the large ring 19 to be quickly aligned with the small ring 20, thereby reducing the difficulty of alignment during equipment assembly, and can improve assembly efficiency, especially when there are a large number of guide bars 12.

[0055] like Figure 4 As shown, in this embodiment, the side of the mounting plate 8 close to the inner wall of the grinding cylinder 1 is set as a curved surface, which is used to reduce the distance between the mounting plate 8 and the inner wall of the grinding cylinder 1, and avoid material entering between the mounting plate 8 and the inner wall of the grinding cylinder 1 to cause material waste.

[0056] A multi-stage grinding method for processing hydrogen storage materials, applied to the multi-stage grinding equipment for processing hydrogen storage materials as described above, comprises the following steps:

[0057] S1: The material is passed from the feed port 3 into the coarse grinding chamber 5 of the grinding cylinder 1;

[0058] S2: Start the motor, which drives the grinding cylinder 1 to rotate, and grinds the material in the coarse grinding chamber 5 through the grinding balls;

[0059] S3: During the grinding of the material in the coarse grinding chamber 5, the grinding balls are moved away from the filter plate 2 by the material guide mechanism 7, and the ground material is guided through the filter plate 2 into the fine grinding chamber 6 for further grinding;

[0060] S4: After the material is ground in the fine grinding chamber 6, it is discharged from the discharge port 4.

[0061] Working principle: First, pour the hydrogen storage material into the coarse grinding chamber 5 from the feed port 3 at the end of the grinding cylinder 1. Start the motor to drive the grinding cylinder 1 to rotate. The grinding balls coarsely grind the material. During this process, the material guide mechanism 7 rotates with the grinding cylinder 1.

[0062] When the grinding balls in the coarse grinding bin 5 come into contact with the filter plate 2, as the grinding cylinder 1 rotates, the grinding balls will come into contact with the guide bars 12. After contact, the grinding balls will be guided by the inclined guide bars 12 that rotate together with the grinding cylinder 1, and will move in the direction away from the filter plate 2. At the same time, the guide bars 12 also guide the uncoarsely ground materials away from the filter plate 2, so as to prevent the grinding balls and the uncoarsely ground materials from clogging the aperture of the filter plate 2. The coarsely ground materials pass through the gaps between the guide bars 12 and enter the interior of the material guiding mechanism 7. After the coarsely ground materials come into contact with the guide portion 21 of the guide plate 9, the guide of the guide portion 21 allows the coarsely ground materials to quickly come into contact with the filter plate 2. Then, the coarsely ground materials pass through the filter plate 2 and enter the fine grinding bin 6, where they are finely ground.

[0063] At the same time, when the grinding balls roll on the guide strips 12, the step surface 13 and the inclined surface 14 will change the movement trajectory and distribution state of the grinding balls, causing them to collide with other grinding balls and materials, thereby improving the rough grinding effect;

[0064] If there is material stuck in the gap between the guide bars 12, wait until the material guide mechanism 7 rotates to the top position of the inner wall of the grinding cylinder 1, and start the driving member 16 of the anti-jamming component 15. The driving member 16 will push the guide bars 12 close to the mounting plate 8 to move horizontally, so that the guide bars 12 move closer to each other. In the process of moving closer, the guide bars 12 will crush the material stuck between the guide bars 12. The crushed material will enter the interior of the material guide mechanism 7 and contact the guide part 21. The guide part 21 will guide the crushed material to the filter plate 2. The crushed material will pass through the filter plate 2 and enter the fine grinding chamber 6.

[0065] When the material guide mechanism 7 rotates away from the highest point of the inner wall of the grinding cylinder 1, the driving member 16 is controlled to retract. After the driving member 16 retracts, the spring 17 rebounds, and the rebound of the spring 17 can drive the guide bar 12 to reset;

[0066] In the process of moving the guide bar 12, the guide bar 12 slides on the surface of the limit rod 11, and the large ring 19 slides on the surface of the small ring 20, and the sliding of the large ring 19 on the surface of the small ring 20 prevents the material from contacting the spring 17;

[0067] When the material in the fine grinding bin 6 is further ground to the desired particle size, the cover of the discharge port 4 is opened to discharge the finished product.

[0068] The present invention encompasses any substitutions, modifications, equivalent methods, and solutions that fall within the spirit and scope of the present invention. In order to provide the public with a thorough understanding of the present invention, specific details are described in detail in the preferred embodiments of the present invention above, but those skilled in the art can fully understand the present invention without these detailed descriptions.

[0069] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A multi-stage grinding device for processing hydrogen storage materials, comprising a grinding cylinder (1), wherein a filter plate (2) is fixed in the middle of the inner wall of the grinding cylinder (1), a coarse grinding chamber (5) and a fine grinding chamber (6) are separated in the grinding cylinder (1) by the filter plate (2), a feed port (3) is provided at the end of the grinding cylinder (1), the feed port (3) is connected to the coarse grinding chamber (5), a discharge port (4) is provided on the outer wall of the grinding cylinder (1) corresponding to the fine grinding chamber (6), and a cover is detachably connected to the discharge port (4), characterized in that: Also includes: A material guide mechanism (7), wherein the height of the material guide mechanism (7) is greater than the diameter of the grinding ball, and the material guide mechanism (7) comprises a plurality of mounting plates (8) fixed to the inner wall of the grinding cylinder (1), wherein the plurality of mounting plates (8) are arranged in a circular array about the center of the grinding cylinder (1), a guide plate (9) is fixed to the side of the mounting plate (8), a sealing plate (10) is detachably connected to the top of the guide plate (9), a limiting rod (11) is fixed to the top of the mounting plate (8), and the top of the limiting rod (11) is attached to the bottom of the sealing plate (10), The surface of the limiting rod (11) is provided with a plurality of guide strips (12) with equal spacing and inclination, and a material channel is formed between adjacent guide strips (12) and between the guide strip (12) near the bottom of the sealing plate (10) and the bottom of the sealing plate (10). The height of the material channel is the same as the aperture of the filter plate (2). The side surfaces of the sealing plate (10), the guide plate (9) and the mounting plate (8) are all attached to the side of the filter plate (2) near the feed port (3), and the other side of the guide strip (12) is attached to the inner wall of the guide plate (9); The guide plate (9) is composed of a guide portion (21) and a connecting portion (22). The inclination direction of the guide portion (21) is opposite to the inclination direction of the guide strip (12). The sealing plate (10), the guide strip (12) and the mounting plate (8) are all provided with a step surface (13) on the side away from the guide portion (21).

2. The multi-stage grinding equipment for processing hydrogen storage materials according to claim 1, characterized in that: A slope (14) is provided on the side of the step surface (13) away from the guide portion (21), and the inclination angle of the slope (14) is opposite to the inclination angle of the guide strip (12).

3. The multi-stage grinding equipment for processing hydrogen storage materials according to claim 1, characterized in that: The surface of the grinding cylinder (1) is provided with an anti-jamming component (15), and the anti-jamming component (15) includes a driving member (16) mounted on the surface of the grinding cylinder (1), and the output end of the driving member (16) movably passes through the grinding cylinder (1) and the mounting plate (8) and is attached to the surface of the guide bar (12) close to the mounting plate (8), and springs (17) are clamped between adjacent guide bars (12) and the guide bar (12) close to the sealing plate (10) and the sealing plate (10), and the spring (17) is sleeved on the surface of the limiting rod (11).

4. The multi-stage grinding equipment for processing hydrogen storage materials according to claim 3, characterized in that: The driving member (16) is an electric push rod.

5. The multi-stage grinding equipment for processing hydrogen storage materials according to claim 1, characterized in that: The guide bar (12) is provided with a plurality of protective components (18) on its surface. The protective components (18) include a small ring (20) and a large ring (19). The plurality of small rings (20) are fixed on the top of the guide bar (12), and the plurality of large rings (19) are respectively fixed on the bottom of the sealing plate (10) and the guide bar (12). The large ring (19) is movably sleeved on the surface of the small ring (20). The large ring (19) and the small ring (20) are both sleeved on the surface of the limit rod (11), and the spring (17) is located in the large ring (19) and the small ring (20).

6. The multi-stage grinding equipment for processing hydrogen storage materials according to claim 5, characterized in that: A guide surface is provided at the bottom edge of the large circular ring (19), and the guide surface is used to guide the large circular ring (19) to be inserted into the surface of the small circular ring (20).

7. The multi-stage grinding equipment for processing hydrogen storage materials according to claim 1, characterized in that: The side of the mounting plate (8) close to the inner wall of the grinding cylinder (1) is provided with a curved surface, which is used to reduce the distance between the mounting plate (8) and the inner wall of the grinding cylinder (1).

8. A multi-stage grinding method for processing hydrogen storage materials, using the multi-stage grinding device for processing hydrogen storage materials according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: feeding the material from the feed port (3) into the coarse grinding chamber (5) of the grinding cylinder (1); S2: starting the motor, which drives the grinding cylinder (1) to rotate, and grinding the material in the coarse grinding chamber (5) through the grinding balls; S3: During the grinding of the material in the coarse grinding chamber (5), the grinding balls are moved away from the filter plate (2) by the material guide mechanism (7), and the ground material is guided through the filter plate (2) into the fine grinding chamber (6) for further grinding; S4: After the material is ground in the fine grinding chamber (6), it is discharged from the discharge port (4).

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