A solid composite hydrogen storage material preparation device and method

Abstract

The present invention provides a solid composite hydrogen storage material preparation device and method, belonging to the technical field of hydrogen storage material preparation; it includes a ball mill, and also includes: a feed pipe, the number of the feed pipes is two, the two feed pipes are fixed at both ends of the ball mill respectively, the inner wall of the ball mill is fixed with a baffle, the baffle is fixedly sleeved on the outer wall of the feed pipe, a discharge port is opened in the middle position of the outer wall of the ball mill, a cover plate is detachably connected to the discharge port, the inner diameter of the middle of the ball mill is larger than the inner diameter of the two ends of the ball mill, and a plurality of convex strips are fixed on the inner wall of the ball mill. The present invention arranges a strip-shaped paddle, and the strip-shaped paddle follows the rotation of the ball mill. After the steel balls are lifted to a high place by the strip-shaped paddle, the steel balls are dropped from the high place, thereby increasing the impact force of the steel balls on the bulk raw materials, accelerating the crushing of the bulk raw materials, shortening the ball milling time, and thus improving the ball milling efficiency of the bulk raw materials.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen storage material preparation, and in particular to a device and method for preparing a solid composite hydrogen storage material. Background Art

[0002] Solid-state composite hydrogen storage materials are a type of material that stores hydrogen in a solid medium physically or chemically. They are usually composed of one or more metal hydrides and other additives or carriers. They have the advantages of high hydrogen storage density, good safety, and reversible hydrogen absorption and desorption properties. Solid-state composite hydrogen storage materials are often prepared by ball milling. The bulk raw materials are added to the ball mill barrel of the ball mill. During the rotation of the ball mill barrel, the inner lining inside the ball mill barrel drives the steel balls and the bulk raw materials to roll inside the ball mill barrel. At the same time, during the rotation of the ball mill barrel, the steel balls are lifted by the protrusions on the inner lining, and then the steel balls fall and hit the bulk raw materials under the action of their own gravity. The bulk raw materials are repeatedly impacted, collided and rubbed by the steel balls on the bulk raw materials, thereby grinding the bulk raw materials into powder. Then, the additives are added to the ball mill barrel, the powdered raw materials and the additives are mixed, and then the solid-state composite hydrogen storage material is formed by pressing and molding.

[0003] When using a ball mill to prepare solid composite hydrogen storage materials, the block raw materials are added to the ball mill barrel of the ball mill. The ball mill barrel relies on the protrusions on the inner lining to drive the steel balls and the block raw materials to roll inside the ball mill barrel. At the same time, the protrusions on the inner lining lift the steel balls, and then the steel balls fall under the action of their own gravity and hit the block raw materials to achieve ball milling. However, the height of the protrusions on the inner lining at the inner wall of the ball mill barrel is smaller than the diameter of the steel balls. It is difficult to bring the steel balls to a high place and then let them fall through the protrusions on the inner lining. When the steel balls fall, the impact force on the block raw materials is weak, thereby affecting the ball milling efficiency of the block raw materials. Therefore, the present application provides a solid composite hydrogen storage material preparation device and method to meet the needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a solid composite hydrogen storage material preparation device and method to solve the problem that the impact force of the steel ball on the bulk raw material is weak when falling in the ball mill, thereby affecting the ball milling efficiency of the bulk raw material.

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

[0006] A solid composite hydrogen storage material preparation device, comprising a ball mill and:

[0007] Feed pipes, there are two feed pipes, the two feed pipes are fixed at both ends of the ball mill respectively, the inner wall of the ball mill is fixed with a baffle, the baffle is fixedly sleeved on the outer wall of the feed pipe, a discharge port is opened in the middle of the outer wall of the ball mill, and a cover plate is detachably connected to the discharge port. The inner diameter of the middle of the ball mill is larger than the inner diameter of the two ends of the ball mill, and the inner wall of the ball mill is fixed with a plurality of convex strips;

[0008] The toggle mechanism includes a toggle assembly disposed inside the ball mill, the toggle assembly including a plurality of strip-shaped toggle plates, the height of the strip-shaped toggle plates being greater than the diameter of the steel balls, the strip-shaped toggle plates being located between two baffles, the plurality of strip-shaped toggle plates being arranged along the circumference of the inner wall of the ball mill, and the sides of the strip-shaped toggle plates being provided with a plurality of notches, the width of the notches being less than the diameter of the steel balls;

[0009] During operation, the ball mill drives the strip-shaped paddle to rotate synchronously, and the strip-shaped paddle drives the steel balls to fall from a high place during the rotation process.

[0010] Preferably, a convex portion is provided on the side of the strip-shaped shifting plate facing the positive direction of rotation of the ball mill, and a V-shaped surface is provided on the side of the convex portion away from the rotation center of the ball mill.

[0011] Preferably, a plurality of inclined guide surfaces are provided on the side of the strip-shaped shifting plate facing the positive direction of rotation of the ball mill drum, the raised portion is connected to the inclined guide surface, and the notch is located between two adjacent inclined guide surfaces.

[0012] Preferably, a convex strip 1 is fixed on the inclined guide surface, a convex strip 2 is symmetrically fixed on the surface of the convex strip 1, and the convex strip 2 is on the inclined guide surface.

[0013] Preferably, the first and second convex strips are both semicircular, and both ends of the second convex strip are bent toward the rotation center of the ball mill.

[0014] Preferably, an arc-shaped convex strip is fixed on the side of the strip-shaped shift plate away from the rotation center of the ball mill, and both ends of the arc-shaped convex strip are bent toward the side close to the rotation center of the ball mill. An arc-shaped surface is provided on the side of the arc-shaped convex strip away from the rotation center of the ball mill, and the arc-shaped surface faces the opposite direction of the rotation direction of the ball mill, and the shape of the arc-shaped convex strip is adapted to the shape of the inner wall of the ball mill.

[0015] Preferably, the strip-shaped shift plate has a strip-shaped arc surface on one side away from the rotation center of the ball mill, and both ends of the strip-shaped arc surface are bent toward the side close to the rotation center of the ball mill, and the shape of the strip-shaped arc surface is adapted to the shape of the inner wall of the ball mill.

[0016] Preferably, the toggle mechanism also includes a driving assembly arranged on the outer wall of the ball mill, the driving assembly includes several driving members installed on the outer wall of the ball mill, the driving member is an electric push rod, the telescopic end of the driving member is fixed with a driving seat, the inner wall of the driving seat is fixed with a driving column, the interior of the driving seat is provided with a driven block, the side of the driven block is provided with an inclined groove, the driving column is slidably connected in the inclined groove, a guide rod is fixed on the side of the driven block close to the ball mill, the end of the guide rod away from the driven block moves through the ball mill and extends to the interior of the ball mill, a guide sleeve is fixed on the inner wall of the ball mill, the inner wall of the guide sleeve is slidably connected to the surface of the guide rod, and a rotating assembly is provided on the end of the guide rod away from the driven block, and the rotating assembly is used for rotation after the strip-shaped toggle plate is separated from the steel ball.

[0017] Preferably, the rotating assembly includes an L-shaped rod fixed to the side of the strip shift plate close to the rotation center of the ball mill, a square seat is fixed to the side of the guide rod away from the driven block, a through hole is opened on the side of the baffle, the L-shaped rod is located in the through groove, and the horizontal section of the L-shaped rod is inserted into the square seat, the horizontal section of the L-shaped rod is sleeved with a torsion spring, one end of the torsion spring is inserted into the end of the horizontal section of the L-shaped rod, and the other end of the torsion spring is inserted into the inner wall of the square seat, and a limiting block is fixed on the side of the baffle close to the strip shift plate. When the strip shift plate contacts the steel ball, the L-shaped rod fits with the limiting block, and when the strip shift plate separates from the steel ball, the L-shaped rod separates from the limiting block.

[0018] A method for preparing a solid composite hydrogen storage material, applied to the above-mentioned solid composite hydrogen storage material preparation device, comprises the following steps:

[0019] S1: Add bulk raw materials and steel balls into the ball mill;

[0020] S2: When the ball mill is milling the bulk raw materials, the strip-shaped paddles of the ball mill drive the steel balls to a high place and then drop them down;

[0021] S3: After the ball milling is completed, the cover of the discharge port is opened and the powdered raw materials are discharged from the discharge port.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] In the above scheme, by setting the strip-shaped paddle, the strip-shaped paddle follows the rotation of the ball mill, and the steel balls are lifted to a high place by the strip-shaped paddle, and then dropped from a high place, thereby increasing the impact force of the steel balls on the bulk raw materials, accelerating the crushing of the bulk raw materials, shortening the ball milling time, and thus improving the ball milling efficiency of the bulk raw materials.

[0024] By setting the raised portion, when the steel ball is lifted up by the strip-shaped paddle during rotation, the raised portion is used to block the steel ball from sliding off the strip-shaped paddle, thereby preventing the steel ball from sliding directly off the strip-shaped paddle. The height to which the steel ball is lifted up by the strip-shaped paddle is further increased, and the impact force of the steel ball on the bulk raw material is further increased, thereby accelerating the crushing of the bulk raw material again, and thus improving the ball milling efficiency of the bulk raw material again.

[0025] By setting the convex strips 1 and 2, the steel balls are guided by the convex strips 1 and 2 when rolling along the strip-shaped paddle plate, so that the steel balls on the strip-shaped paddle plate collide with each other, thereby achieving ball milling of large pieces of raw materials on the strip-shaped paddle plate, shortening the overall ball milling time, and further improving the ball milling efficiency of the bulk raw materials. At the same time, the convex strip 2 is curved, so that the raw materials passing through the convex strip 2 are guided by the shape of the convex strip 2 and slide smoothly from the inclined guide surface, thereby reducing the interference of the raw materials on the steel balls when moving on the strip-shaped paddle plate.

[0026] By setting the notch, after the large pieces of raw materials are ball-milled into small pieces, when the small pieces of raw materials are lifted up by the strip-shaped paddle, the small pieces of raw materials and the powdered raw materials produced by subsequent ball milling can fall from the notch, preventing the small pieces of raw materials or powdered raw materials from filling the position of the raised part, thereby ensuring that the raised part stably produces a blocking effect on the steel ball.

[0027] By setting the inclined guide surface, after the strip-shaped paddle brings up the small pieces or powdered raw materials, the small pieces or powdered raw materials are guided by the inclined guide surface and are more likely to slide off the strip-shaped paddle and the notch, thereby further preventing the small pieces or powdered raw materials from filling the position of the raised portion, and further ensuring that the raised portion stably produces a blocking effect on the steel ball.

[0028] By setting the arc-shaped convex strips and the arc-shaped surface, a gap exists between the strip-shaped paddle and the inner wall of the ball mill. In order to reduce the probability of material getting stuck in this gap, the arc-shaped convex strips are provided. The arc-shaped convex strips reduce the height of the gap, thereby reducing the possibility of large pieces of raw material getting stuck in the gap. At the same time, when small pieces of raw material pass between the arc-shaped convex strips and the inner wall of the ball mill, the side of the arc-shaped convex strips facing the inner wall of the ball mill is an arc-shaped surface rather than a flat surface. The design of the arc-shaped surface reduces the contact time between the arc-shaped convex strips and the small pieces of raw material, thereby reducing the probability of small pieces of raw material getting stuck in the arc-shaped convex strips.

[0029] Through the setting of the driving component, during the ball milling process of block raw materials, the driving component is used to drive the strip paddle to gradually move away from the rotation center of the ball mill. During the ball milling process of large block raw materials, the strip paddle is close to the rotation center of the ball mill. At this time, the strip paddle can drive more large block raw materials and steel balls to roll in the ball mill, thereby effectively pushing and stirring the large block raw materials, causing the large block raw materials and the large block raw materials and the steel balls to collide and rub with each other, thereby increasing the ball milling speed of the large block raw materials. When the large block raw materials are turned into small pieces, the strip paddle moves away from the ball mill. The milling drum moves in the direction of the center of rotation, so that the strip-shaped paddle is closer to the inner wall of the ball mill. At this time, the strip-shaped paddle can better act on the small pieces of raw materials, preventing the small pieces of raw materials from passing through the gap between the strip-shaped paddle and the inner wall of the ball mill, thereby improving the stirring effect of the strip-shaped paddle on the small pieces of raw materials, thereby increasing the ball milling speed of the small pieces of raw materials. When the small pieces of raw materials become powdered, the arc-shaped convex strips fit with the inner wall of the ball mill, preventing the powdered raw materials from passing through the gap between the strip-shaped paddle and the inner wall of the ball mill, thereby improving the stirring effect of the strip-shaped paddle on the powdered raw materials, thereby increasing the ball milling speed of the powdered raw materials.

[0030] Moreover, during the movement of the strip-shaped paddle, the number of steel balls that can be brought up gradually decreases. For large pieces of raw materials, more steel balls can be brought up, which can cause more large pieces of raw materials to be impacted and broken by the steel balls, thereby helping to break the large pieces of raw materials. For small pieces and powdered raw materials, the impact and crushing effect of the steel balls on the small pieces and powdered raw materials gradually decreases. The number of steel balls brought up by the strip-shaped paddle gradually decreases, so that more steel balls can collide and rub against each other with the small pieces and powdered raw materials in the raw material mass, further shortening the time required for ball milling and greatly improving the ball milling efficiency.

[0031] Through the setting of the rotating assembly, when the block raw material is stuck between the strip paddle and the inner wall of the ball mill during the rotation process of the strip paddle, after the strip paddle is separated from the steel ball, the elastic force of the torsion spring in the rotating assembly is used to make the strip paddle rotate clockwise with the horizontal section of the L-shaped rod as the axis, thereby changing the distance between the strip paddle and the inner wall of the ball mill, thereby releasing the stuck state of the block raw material and allowing the stuck block raw material to fall into the raw material mass to participate in ball milling, thereby improving the ball milling uniformity of the block raw material.

[0032] By setting the strip-shaped arc surface, when the strip-shaped paddle rotates clockwise under the action of the torsion spring, the side of the strip-shaped paddle facing the inner wall of the ball mill is a strip-shaped arc surface instead of a flat surface. Through the design of the strip-shaped arc surface, the distance between the strip-shaped paddle and the inner wall of the ball mill increases rapidly, making it easier for stuck bulk raw materials to break away from the strip-shaped paddle. At the same time, guided by the strip-shaped arc surface, the stuck bulk raw materials are easier to break away from the strip-shaped paddle, thereby effectively preventing the stuck bulk raw materials from affecting the rotation of the strip-shaped paddle. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the three-dimensional structure of the rotating assembly of the present invention;

[0035] Figure 3 This is a schematic diagram of the three-dimensional structure of the convex strips of the present invention;

[0036] Figure 4 It is a right sectional view of the cover plate of the present invention;

[0037] Figure 5 Schematic diagram of the internal structure of the ball mill of the present invention;

[0038] Figure 6 This is a schematic diagram of the three-dimensional structure of the strip-shaped dial plate of the present invention;

[0039] Figure 7 It is a cross-sectional view of the chute of the present invention;

[0040] Figure 8 It is a schematic diagram of the three-dimensional structure of the torsion spring of the present invention;

[0041] Figure 9 This is a schematic diagram of the three-dimensional structure of the arc-shaped convex strips of the present invention;

[0042] Figure 10 It is a schematic diagram of the three-dimensional structure of the convex strip of the present invention.

[0043] In the figure: 1. ball mill; 2. feed pipe; 3. baffle; 4. toggle mechanism; 5. drive assembly; 6. drive member; 7. drive seat; 8. drive column; 9. driven block; 10. inclined groove; 11. guide rod; 12. guide sleeve; 13. rotating assembly; 14. square seat; 15. torsion spring; 16. L-shaped rod; 17. toggle assembly; 18. strip-shaped toggle plate; 19. inclined guide surface; 20. notch; 21. raised portion; 22. V-shaped surface; 23. convex strip 1; 24. convex strip 2; 25. convex strip 3; 26. arc-shaped convex strip; 27. arc surface; 28. strip-shaped arc surface; 29. through groove; 30. limit block; 31. cover plate.

[0044] 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

[0045] The following describes in detail a solid-state composite hydrogen storage material preparation device and method 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 implementations for known techniques. Furthermore, the accompanying drawings are provided solely for the purpose of describing the embodiments in greater detail and are not intended to limit the present invention.

[0046] 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).

[0047] 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.

[0048] like Figures 1-10 As shown, an embodiment of the present invention provides a solid composite hydrogen storage material preparation device, including a ball mill 1, and further comprising:

[0049] Feed pipe 2, the number of feed pipe 2 is two, the two feed pipes 2 are fixed at both ends of the ball mill 1, a rotating seat is installed at the feed pipe 2, a bracket is installed at the bottom of the rotating seat, the bracket is used to set up the ball mill 1, and a motor and a reducer are also installed on the bracket. The motor drives the reducer to rotate, and the output shaft of the reducer drives the gear to rotate. The ball mill 1 is driven to rotate through the engagement of the gear with the gear ring on the outer wall of the ball mill 1 to achieve ball milling of the block raw materials inside the ball mill 1. The inner wall of the ball mill 1 is fixed with a baffle 3, which is fixedly sleeved on the outer wall of the feed pipe 2. The baffle 3 prevents To prevent the raw materials from falling out of the end of the ball mill 1 during the ball milling process, a discharge port is opened in the middle of the outer wall of the ball mill 1, and a cover plate 31 is detachably connected to the discharge port. The cover plate 31 is fixed to the discharge port by bolts, thereby realizing a detachable connection between the cover plate 31 and the discharge port. The inner diameter of the middle of the ball mill 1 is larger than the inner diameter of the two ends of the ball mill 1. A plurality of convex strips 25 are fixed to the inner wall of the ball mill 1. The convex strips 25 rotate with the ball mill 1 and are used to increase the friction between the raw materials and the steel balls and the inner wall of the ball mill 1, so that the raw materials and the steel balls are tumbled and stirred in the ball mill 1 to achieve ball milling;

[0050] The toggle mechanism 4 includes a toggle assembly 17 disposed inside the ball mill 1. The toggle assembly 17 includes a plurality of strip-shaped toggle plates 18. The height of the strip-shaped toggle plates 18 is greater than the diameter of the steel ball. The strip-shaped toggle plates 18 are located between the two baffles 3. The plurality of strip-shaped toggle plates 18 are arranged along the inner wall of the ball mill 1. The side surfaces of the strip-shaped toggle plates 18 are provided with a plurality of notches 20. The width of the notches 20 is less than the diameter of the steel ball.

[0051] During operation, the ball mill 1 drives the strip-shaped paddle 18 to rotate synchronously. During the rotation of the strip-shaped paddle 18, the steel balls are driven to fall from a high place, thereby increasing the impact force of the steel balls on the bulk raw materials, thereby shortening the ball milling time of the bulk raw materials and improving the ball milling efficiency of the bulk raw materials.

[0052] like Figures 6-10 The V-shaped surface 22 on the side of the protrusion 21 away from the rotation center of the ball mill 1 is conducive to guiding the raw materials to slide from the two sides of the protrusion 21, preventing small pieces of raw materials or powdered raw materials from filling the position of the protrusion 21 and affecting the blocking effect of the protrusion 21 on the steel balls.

[0053] like Figure 6-Figure 8 and Figure 10 As shown, in this embodiment, a plurality of inclined guide surfaces 19 are provided on the side of the strip-shaped paddle 18 facing the positive direction of rotation of the ball mill 1, the raised portion 21 is connected to the inclined guide surface 19, and the notch 20 is located between two adjacent inclined guide surfaces 19. The setting of the inclined guide surface 19 enables the strip-shaped paddle 18 to bring up the small pieces or powdered raw materials. The small pieces or powdered raw materials are guided by the inclined guide surface 19 and are more likely to slide off the strip-shaped paddle 18 and the notch 20, thereby further preventing the small pieces of raw materials or powdered raw materials from filling the position of the raised portion 21, further ensuring that the raised portion 21 stably produces a blocking effect on the steel balls. At the same time, the inclined guide surface 19 is connected to the raised portion 21, which can make the steel balls transition to the raised portion 21 more smoothly during the rolling process, so that the raised portion 21 can play a blocking role on the steel balls.

[0054] like Figure 10 As shown, in this embodiment, a ridge 1 23 is fixed on the inclined guide surface 19, and a ridge 24 is symmetrically fixed on the surface of the ridge 1 23. The ridge 24 is on the inclined guide surface 19. When the steel ball contacts the ridge 1 23, it is guided by the ridge 1 23 and moves along the strip-shaped paddle 18, so that the steel balls on the strip-shaped paddle 18 collide with each other, thereby achieving ball milling of the block raw material on the strip-shaped paddle 18, shortening the overall ball milling time, and improving the ball milling efficiency of the block raw material. The ridge 24 symmetrically fixed on the surface of the ridge 1 23 can further guide the steel ball, so that the steel ball moves again, and the block raw material on the strip-shaped paddle 18 is ball milled again. At the same time, the ridge 24 can also guide the passing raw material, so that the raw material slides smoothly from the inclined guide surface 19, reducing the interference of the raw material on the steel ball when moving on the strip-shaped paddle 18, and ensuring the efficient progress of the ball milling process.

[0055] like Figure 10 As shown, in this embodiment, the ridges 1 and 2, 23, are both semicircular, and the two ends of the ridges 24 are bent toward the rotation center of the ball mill 1. The ridges 1 and 2, 24 are semicircular, which can reduce the resistance of the block and powder raw materials when passing through the ridges 1 and 2, 24, so that the block and powder raw materials can pass through the ridges 1 and 2, 24 smoothly, preventing the block and powder raw materials from accumulating on the inclined guide surface 19 and affecting the blocking effect of the protrusion 21 on the steel balls. The two ends of the ridge 24 are bent toward the rotation center of the ball mill 1. This shape design is conducive to guiding the steel balls to move irregularly and improve the ball milling effect of the block raw materials on the strip-shaped paddle 18. At the same time, it can further guide the flow of the block and powder raw materials at the inclined guide surface 19, so that the block and powder raw materials can pass through the ridges 2 and 2, again preventing the block and powder raw materials from accumulating on the inclined guide surface 19 and affecting the blocking effect of the protrusion 21 on the steel balls.

[0056] like Figure 9As shown, in this embodiment, an arc-shaped convex strip 26 is fixed on the side of the strip-shaped paddle 18 away from the rotation center of the ball mill 1, and both ends of the arc-shaped convex strip 26 are bent toward the side close to the rotation center of the ball mill 1. An arc-shaped surface 27 is provided on the side of the arc-shaped convex strip 26 away from the rotation center of the ball mill 1. The arc-shaped surface 27 faces the opposite direction of the rotation direction of the ball mill 1. The shape of the arc-shaped convex strip 26 is adapted to the shape of the inner wall of the ball mill 1. Since there is a gap between the strip-shaped paddle 18 and the inner wall of the ball mill 1, the arc-shaped convex strip 26 can reduce the height of the gap, thereby reducing the risk of large pieces of raw materials being stuck in the gap. The possibility of gaps is eliminated. When small pieces of raw materials pass between the arc-shaped ridges 26 and the inner wall of the ball mill 1, the arc-shaped surface 27 reduces the contact time between the arc-shaped ridges 26 and the small pieces of raw materials, and reduces the probability of small pieces of raw materials getting stuck at the arc-shaped ridges 26, thereby ensuring the smooth progress of the ball milling process. The shape of the arc-shaped ridges 26 is adapted to the shape of the inner wall of the ball mill 1, and can be more stably fitted to the inner wall of the ball mill 1 during subsequent bonding to prevent material leakage. At the same time, the shape of the arc-shaped ridges 26 is adapted to the shape of the inner wall of the ball mill 1, which can prevent the inclined part of the inner wall of the ball mill 1 from blocking the movement of the arc-shaped ridges 26.

[0057] like Figure 1-Figure 3 、 Figure 6 and Figure 7As shown, in this embodiment, the toggle mechanism 4 also includes a driving assembly 5 arranged on the outer wall of the ball mill 1, and the driving assembly 5 includes several driving members 6 installed on the outer wall of the ball mill 1. The driving member 6 is an electric push rod, and a mounting plate is fixed to the outer wall of the ball mill 1. The driving member 6 is installed on the mounting plate to achieve fixation, and the gear ring on the outer wall of the ball mill 1 corresponds to the push rod of the driving member 6. The notch provides space for the extension or shortening of the push rod of the driving member 6. The telescopic end of the driving member 6 is fixed with a driving seat 7, and the inner wall of the driving seat 7 is fixed with a driving column 8. A driven block 9 is provided inside the driving seat 7, and an inclined groove 10 is opened on the side of the driven block 9. The driving column 8 is slidably connected in the inclined groove 10. A guide rod 11 is fixed to the side of the driven block 9 close to the ball mill 1, and the guide rod 11 is far away One end of the driven block 9 is movable through the ball mill 1 and extends to the inside of the ball mill 1. A guide sleeve 12 is fixed to the inner wall of the ball mill 1. The inner wall of the guide sleeve 12 is slidably connected to the surface of the guide rod 11. A rotating assembly 13 is provided at the end of the guide rod 11 away from the driven block 9. The rotating assembly 13 is used for the rotation of the strip-shaped paddle 18 after separation from the steel ball. A conductive slip ring is installed on the outer wall of the ball mill 1. The conductive slip ring is connected to an external power supply, and the conductive slip ring is used to realize the power supply to the driving member 6. In the process of ball milling the block raw material, the push rod of the driving member 6 on the driving assembly 5 is shortened to drive the driving seat 7 to move. The driving seat 7 drives the driving column 8 to squeeze the inner wall of the inclined groove 10 on the driven block 9 away from the inclined surface 19 on the side of the ball mill 1, so that the driven block 9 drives the guide rod 11 along the guide sleeve 1 2, the guide rod 11 drives the square seat 14 to move, and the square seat 14 drives the strip paddle 18 to move away from the rotation center of the ball mill 1 through the L-shaped rod 16, so as to change the position of the strip paddle 18. In the ball milling stage of large raw materials, the strip paddle 18 is close to the rotation center of the ball mill 1. At this time, it can drive more large raw materials and steel balls to roll in the ball mill 1, effectively push and stir the large raw materials, so that the large raw materials and the steel balls collide and rub with each other, thereby improving the ball milling speed of the large raw materials. When the large raw materials are turned into small pieces, the strip paddle 18 moves away from the rotation center of the ball mill 1, and the strip paddle 18 is closer to the inner wall of the ball mill 1. At this time, it can better act on the small raw materials, preventing the small raw materials from being crushed. The material passes between the strip paddle 18 and the inner wall of the ball mill 1, which improves the stirring effect on the small pieces of raw materials, thereby increasing the ball milling speed of the small pieces of raw materials. When the small pieces of raw materials become powdery, the arc-shaped convex strips 26 fit with the inner wall of the ball mill 1 to prevent the powdery raw materials from passing between the strip paddle 18 and the inner wall of the ball mill 1, thereby improving the stirring effect on the powdery raw materials, thereby increasing the ball milling speed of the powdery raw materials. In the process of the movement of the strip paddle 18, the number of steel balls that can be brought up gradually decreases. For large pieces of raw materials, more steel balls are brought up so that more large pieces of raw materials are impacted and broken by the steel balls, which helps to break the large pieces of raw materials. For small pieces and powdery raw materials, the cushioning effect of the small pieces and powdery raw materials on the falling steel balls gradually increases, resulting in a gradual decrease in the impact and crushing effect of the steel balls on them.At this time, the strip-shaped paddle 18 carries fewer steel balls, allowing more steel balls to collide and rub against each other within the raw material mass with small pieces and powdered raw materials, further shortening the time required for ball milling and greatly improving the ball milling efficiency.

[0058] like Figure 6-Figure 8 As shown, in this embodiment, the rotating assembly 13 includes an L-shaped rod 16 fixed to the side of the strip-shaped paddle 18 close to the rotation center of the ball mill 1, and a square seat 14 is fixed to the side of the guide rod 11 away from the driven block 9. A through hole is opened on the side of the baffle 3, and the L-shaped rod 16 is located in the through groove 29, and the horizontal section of the L-shaped rod 16 is inserted into the square seat 14. The horizontal section of the L-shaped rod 16 is sleeved with a torsion spring 15, one end of the torsion spring 15 is inserted into the end of the horizontal section of the L-shaped rod 16, and the other end of the torsion spring 15 is inserted into the inner wall of the square seat 14. A limiting block 30 is fixed on the side of the baffle 3 close to the strip-shaped paddle 18. When the strip-shaped paddle 18 contacts the steel ball, the L-shaped rod 16 fits with the limiting block 30. When the strip-shaped paddle 18 separates from the steel ball, the L-shaped rod 16 separates from the limiting block 30. The through groove 29 provides space for the movement of the L-shaped rod 16. During the rotation of the strip-shaped paddle 18, the strip-shaped paddle 1 8 Affected by the obstruction of the raw material mass, the strip paddle 18 rotates counterclockwise with the horizontal section of the L-shaped rod 16 as the axis, so that the torsion spring 15 is inserted into the horizontal section of the L-shaped rod 16 and is subjected to force, so that the torsion spring 15 is in a twisted state. At the same time, the L-shaped rod 16 is in contact with the limit block 30 fixed on the side of the baffle 3 to prevent the strip paddle 18 from rotating excessively and affecting the stirring effect of the raw material mass. During the rotation of the strip paddle 18, there is a situation where the block raw material is stuck between the strip paddle 18 and the inner wall of the ball mill 1. When it is separated from the raw material mass and the steel ball falls from the strip paddle 18, under the elastic force of the torsion spring 15, the strip paddle 18 rotates clockwise with the horizontal section of the L-shaped rod 16 as the axis, changing the distance between the strip paddle 18 and the inner wall of the ball mill 1, thereby releasing the stuck state of the raw material, allowing the stuck raw material to fall into the raw material mass to participate in ball milling, thereby improving the ball milling uniformity of the raw material.

[0059] like Figure 9 As shown, in this embodiment, a strip arc surface 28 is provided on the side of the strip paddle 18 away from the rotation center of the ball mill 1, and both ends of the strip arc surface 28 are bent toward the side close to the rotation center of the ball mill 1. The shape of the strip arc surface 28 is adapted to the shape of the inner wall of the ball mill 1. When the strip paddle 18 rotates clockwise under the elastic force of the torsion spring 15, the strip arc surface 28 on the side of the strip paddle 18 facing the inner wall of the ball mill 1 can rapidly increase the distance between the strip paddle 18 and the inner wall of the ball mill 1, making it easier for the stuck bulk raw material to break away from the strip paddle 18. At the same time, guided by the strip arc surface 28, the stuck bulk raw material is easier to break away from the strip paddle 18, thereby effectively preventing the stuck bulk raw material from affecting the rotation of the strip paddle 18, thereby ensuring the continuous and stable progress of the ball milling process.

[0060] A method for preparing a solid composite hydrogen storage material, applied to the above-mentioned solid composite hydrogen storage material preparation device, comprises the following steps:

[0061] S1: Add bulk raw materials and steel balls into ball mill 1;

[0062] S2: During the ball milling process of the block raw material, the strip-shaped shifting plate 18 of the ball mill 1 drives the steel balls to a high position and then drops them down;

[0063] S3: After the ball milling is completed, the cover plate 31 of the discharge port is opened, and the powdered raw materials are discharged from the discharge port.

[0064] Working principle: Lump raw materials and steel balls are added into the ball mill 1 through the feed pipe 2. The ball mill 1 rotates and drives the internal strip-shaped paddle 18 to rotate synchronously. During the rotation process, the strip-shaped paddle 18 cooperates with the raised part 21 to lift the steel balls to a high place. Then the steel balls fall from the high place, which greatly increases the impact force of the steel balls on the lump raw materials, accelerates the crushing of the lump raw materials, shortens the ball milling time, and improves the ball milling efficiency of the lump raw materials.

[0065] When the steel ball rolls along the strip paddle 18, it is guided by the convex strip 1 23 to move along the strip paddle 18. The steel ball moves on the strip paddle 18, causing the steel balls on the strip paddle 18 to collide with each other, thereby achieving ball milling of the block raw materials on the strip paddle 18. When the moving steel ball passes the position of the convex strip 2 24, it is further guided by the convex strip 24 to move again, thereby again ball milling the block raw materials on the strip paddle 18, further shortening the overall ball milling time and improving the ball milling efficiency of the block raw materials. The convex strip 1 23 and the convex strip 2 24 are both semicircular, which can reduce the block and powder raw materials passing through the convex strip 1 23 and the convex strip 2 The resistance of 24 hours makes the block and powder raw materials pass smoothly from the convex strip 1 23 and the convex strip 2 24, preventing the block and powder raw materials from accumulating on the inclined guide surface and affecting the blocking effect of the convex portion 21 on the steel ball, and the two ends of the convex strip 24 are bent toward the rotation center of the ball mill 1. This shape design is conducive to guiding the irregular movement of the steel ball and improving the ball milling effect of the block raw materials on the strip-shaped paddle 18. At the same time, it can further guide the flow of the block and powder raw materials at the inclined guide surface, making the block and powder raw materials pass more smoothly from the convex strip 24, and again preventing the block and powder raw materials from accumulating on the inclined guide surface and affecting the blocking effect of the convex portion 21 on the steel ball;

[0066] As the ball milling progresses, after the large pieces of raw material are ball-milled into small pieces, when the small pieces of raw material are brought up by the strip-shaped paddle 18, the small pieces of raw material and the powdered raw material produced by subsequent ball milling can fall through the several notches 20 opened on the side of the strip-shaped paddle 18, preventing the small pieces of raw material or the powdered raw material from filling the position of the protrusion 21, ensuring that the protrusion 21 stably produces a blocking effect on the steel ball, maintaining an efficient ball milling process, and the width of the notch 20 is smaller than the diameter of the steel ball, which can effectively prevent the steel ball from falling;

[0067] Since there is a gap between the strip-shaped paddle 18 and the inner wall of the ball mill 1, the arc-shaped ridge 26 can reduce the height of the gap, reducing the possibility of large pieces of raw material being stuck in the gap. At the same time, the arc-shaped ridge 26 has an arc-shaped surface 27 on the side away from the rotation center of the ball mill 1. The arc-shaped surface 27 faces the opposite direction of the rotation of the ball mill 1. When small pieces of raw material pass between the arc-shaped ridge 26 and the inner wall of the ball mill 1, the arc-shaped surface 27 reduces the contact time between the arc-shaped ridge 26 and the small pieces of raw material, reducing the possibility of small pieces of raw material being stuck in the arc-shaped ridge 26, thereby ensuring smooth ball milling.

[0068] During the ball milling process of the block raw material, the push rod of the driving member 6 on the driving assembly 5 is shortened to drive the driving seat 7 to move, and the driving seat 7 drives the driving column 8 to squeeze the inner wall of the inclined groove 10 on the driven block 9 away from the inclined surface 19 on the side of the ball mill 1, so that the driven block 9 drives the guide rod 11 to move along the inner wall of the guide sleeve 12, and the guide rod 11 drives the square seat 14 to move. The square seat 14 drives the strip-shaped paddle 18 to move away from the rotation center of the ball mill 1 through the L-shaped rod 16, thereby changing the position of the strip-shaped paddle 18. During the ball milling stage of large pieces of raw materials, the strip-shaped paddle 18 is located near the rotation center of the ball mill 1. At this time, it can drive more large pieces of raw materials and steel balls to roll in the ball mill 1, vigorously push and stir the large pieces of raw materials, make the large pieces of raw materials collide and rub against each other and between the large pieces of raw materials and the steel balls, and improve the ball milling speed of the large pieces of raw materials. When the large pieces of raw materials are turned into small pieces, the strip-shaped paddle 18 moves away from the rotation center of the ball mill 1, and the strip-shaped paddle 18 is closer to the inner wall of the ball mill 1, which can better The arc-shaped convex strips 26 act on small pieces of raw materials to prevent them from passing through between the strip-shaped paddle 18 and the inner wall of the ball mill 1, thereby improving the stirring effect on the small pieces of raw materials and thus improving the ball milling speed of the small pieces of raw materials. When the small pieces of raw materials become powdered, the arc-shaped convex strips 26 fit with the inner wall of the ball mill 1 to prevent the powdered raw materials from passing through between the strip-shaped paddle 18 and the inner wall of the ball mill 1, thereby improving the stirring effect on the powdered raw materials and thus improving the ball milling speed of the powdered raw materials. In addition, during the movement of the strip-shaped paddle 18, the steel balls that can be brought up The number of steel balls gradually decreases. For large pieces of raw materials, more steel balls are brought up so that more large pieces of raw materials are impacted and broken by the steel balls, which helps to break the large pieces of raw materials. For small pieces and powdery raw materials, the cushioning effect of the small pieces and powdery raw materials on the falling steel balls gradually increases, resulting in a gradual decrease in the impact and crushing effect of the steel balls on them. At this time, the strip-shaped paddle 18 brings up fewer steel balls, so that more steel balls can collide and rub with each other within the raw material mass, further shortening the time required for ball milling and greatly improving the ball milling efficiency.

[0069] During the rotation of the strip paddle 18, the strip paddle 18 is affected by the obstruction of the raw material mass, causing the strip paddle 18 to rotate counterclockwise with the horizontal section of the L-shaped rod 16 as the axis, so that the torsion spring 15 is inserted into the horizontal section of the L-shaped rod 16 and is subjected to force, so that the torsion spring 15 is in a twisted state. At the same time, the L-shaped rod 16 is fitted with the limit block 30 fixed on the side of the baffle 3 to prevent the strip paddle 18 from excessively rotating and affecting the stirring effect of the raw material mass. During the rotation of the strip paddle 18, there is a situation where the block raw material is stuck between the strip paddle 18 and the inner wall of the ball mill 1. When it is separated from the raw material mass and the steel ball falls off the strip paddle 18, the strip paddle 18 is rotated under the elastic force of the torsion spring 15. The horizontal section of the L-shaped rod 16 rotates clockwise with the horizontal section as the axis, changing the distance between the strip-shaped paddle 18 and the inner wall of the ball mill 1, thereby releasing the stuck state of the raw material and allowing the stuck raw material to fall into the raw material mass to participate in the ball milling, thereby improving the ball milling uniformity of the raw material. At the same time, a strip-shaped arc surface 28 is formed on the side of the strip-shaped paddle 18 away from the rotation center of the ball mill 1. When the strip-shaped paddle 18 rotates clockwise under the elastic force of the torsion spring 15, the strip-shaped arc surface 28 rapidly increases the distance between the strip-shaped paddle 18 and the inner wall of the ball mill 1. Under the guidance of the strip-shaped arc surface 28, the stuck raw material is more easily separated from the strip-shaped paddle 18, effectively preventing the stuck raw material from affecting the rotation of the strip-shaped paddle 18.

[0070] After the ball milling is completed, the additive is added into the ball mill 1, and then the powdered raw materials and the additive are ball milled and mixed. After mixing, the discharge port is turned to a downward state, and then the cover plate 31 at the discharge port in the middle position of the outer wall of the ball mill 1 is opened, and the raw materials are discharged from the discharge port, completing the entire preparation process. At the same time, due to the influence of the inner wall diameter of the ball mill 1 gradually decreasing from the middle to the two ends, the raw materials and steel balls can slide along the inclined inner wall of the ball mill 1 toward the discharge port position, effectively preventing the raw materials after ball milling from accumulating on the inner wall of the ball mill 1, so that the discharge of the raw materials after ball milling is more comprehensive and thorough;

[0071] When ball milling is required again, the cover plate 31 is fixed at the discharge port, the driving member 6 is started, and the push rod of the driving member 6 is extended, so that the driving seat 7 drives the driving column 8 to squeeze the inclined surface 19 of the inner wall of the inclined groove 10 on the driven block 9 close to the side of the ball mill 1, so that the driven block 9 drives the guide rod 11 to move in the opposite direction along the inner wall of the guide sleeve 12, and the guide rod 11 drives the strip plate 18 to move to the side close to the rotation center of the ball mill 1 through the square seat 14 and the L-shaped rod 16 until the strip plate 18 returns to the position as shown in the figure. Figure 4 In the initial state shown, the bulk raw material and steel balls are added into the ball mill 1, and then the bulk raw material can be ball milled again.

[0072] The present invention encompasses any alternatives, modifications, equivalent methods and solutions that fall within the spirit and scope of the present invention.

Claims

1. A solid composite hydrogen storage material preparation device, comprising a ball mill (1), characterized in that: Also includes: A feed pipe (2), wherein the number of the feed pipes (2) is two, and the two feed pipes (2) are fixed to the two ends of the ball mill (1), a baffle (3) is fixed to the inner wall of the ball mill (1), and the baffle (3) is fixedly sleeved on the outer wall of the feed pipe (2), a discharge port is opened in the middle position of the outer wall of the ball mill (1), and a cover plate (31) is detachably connected to the discharge port, the inner diameter of the middle of the ball mill (1) is larger than the inner diameter of the two ends of the ball mill (1), and a plurality of convex strips (25) are fixed to the inner wall of the ball mill (1); A toggle mechanism (4), the toggle mechanism (4) comprising a toggle assembly (17) disposed inside the ball mill (1), the toggle assembly (17) comprising a plurality of strip-shaped toggle plates (18), the height of the strip-shaped toggle plates (18) being greater than the diameter of the steel ball, the strip-shaped toggle plates (18) being located between the two baffles (3), the plurality of strip-shaped toggle plates (18) being arranged along the circumference of the inner wall of the ball mill (1), the side surfaces of the strip-shaped toggle plates (18) being provided with a plurality of notches (20), the width of the notches (20) being less than the diameter of the steel ball; The toggle mechanism (4) further includes a driving assembly (5) arranged on the outer wall of the ball mill (1), the driving assembly (5) including a plurality of driving members (6) mounted on the outer wall of the ball mill (1), the driving member (6) being an electric push rod, the telescopic end of the driving member (6) being fixed with a driving seat (7), the inner wall of the driving seat (7) being fixed with a driving column (8), the interior of the driving seat (7) being provided with a driven block (9), the side surface of the driven block (9) being provided with an inclined groove (10), the driving column (8) being slidably connected in the inclined groove (10), and the driven A guide rod (11) is fixed on one side of the block (9) close to the ball mill (1), and an end of the guide rod (11) away from the driven block (9) is movable through the ball mill (1) and extends to the inside of the ball mill (1). A guide sleeve (12) is fixed to the inner wall of the ball mill (1), and the inner wall of the guide sleeve (12) is slidably connected to the surface of the guide rod (11). A rotating assembly (13) is provided on the end of the guide rod (11) away from the driven block (9), and the rotating assembly (13) is used for rotating the strip-shaped paddle (18) after separation from the steel balls; During operation, the ball mill (1) drives the strip-shaped shifting plate (18) to rotate synchronously, and the strip-shaped shifting plate (18) drives the steel balls to fall from a high place during the rotation process.

2. The solid composite hydrogen storage material preparation device according to claim 1, characterized in that: A protrusion (21) is provided on the side of the strip-shaped shift plate (18) facing the positive direction of rotation of the ball mill (1), and a V-shaped surface (22) is provided on the side of the protrusion (21) away from the rotation center of the ball mill (1).

3. The solid composite hydrogen storage material preparation device according to claim 2, characterized in that: A plurality of inclined guide surfaces (19) are provided on the side of the strip-shaped shift plate (18) facing the positive direction of rotation of the ball mill (1), the raised portion (21) is connected to the inclined guide surface (19), and the notch (20) is located between two adjacent inclined guide surfaces (19).

4. The solid composite hydrogen storage material preparation device according to claim 3, characterized in that: A convex strip 1 (23) is fixed on the oblique guide surface (19), and a convex strip 2 (24) is symmetrically fixed on the surface of the convex strip 1 (23), and the convex strip 2 (24) is on the oblique guide surface (19).

5. The solid composite hydrogen storage material preparation device according to claim 4, characterized in that: The convex strip 1 (23) and the convex strip 2 (24) are both semicircular, and both ends of the convex strip 2 (24) are bent toward the rotation center of the ball mill (1).

6. The solid composite hydrogen storage material preparation device according to claim 1, characterized in that: An arc-shaped convex strip (26) is fixed on the side of the strip-shaped shift plate (18) away from the rotation center of the ball mill (1), and both ends of the arc-shaped convex strip (26) are bent toward the side close to the rotation center of the ball mill (1). An arc-shaped surface (27) is formed on the side of the arc-shaped convex strip (26) away from the rotation center of the ball mill (1), and the arc-shaped surface (27) faces the opposite direction of the rotation direction of the ball mill (1). The shape of the arc-shaped convex strip (26) is adapted to the shape of the inner wall of the ball mill (1).

7. The solid composite hydrogen storage material preparation device according to claim 1, characterized in that: The rotating assembly (13) includes an L-shaped rod (16) fixed to the side of the strip-shaped paddle (18) close to the rotation center of the ball mill (1), a square seat (14) is fixed to the side of the guide rod (11) away from the driven block (9), a through hole is opened on the side of the baffle (3), the L-shaped rod (16) is located in the through groove (29), and the horizontal section of the L-shaped rod (16) is inserted into the square seat (14), and the horizontal section of the L-shaped rod (16) is sleeved with a torsion spring (15 ), one end of the torsion spring (15) is inserted into the end of the horizontal section of the L-shaped rod (16), and the other end of the torsion spring (15) is inserted into the inner wall of the square seat (14). A limit block (30) is fixed on one side of the baffle (3) close to the strip-shaped dial plate (18). When the strip-shaped dial plate (18) contacts the steel ball, the L-shaped rod (16) fits the limit block (30). When the strip-shaped dial plate (18) separates from the steel ball, the L-shaped rod (16) separates from the limit block (30).

8. The solid composite hydrogen storage material preparation device according to claim 7, characterized in that: A strip-shaped arc surface (28) is provided on a side of the strip-shaped shift plate (18) away from the rotation center of the ball mill (1), and both ends of the strip-shaped arc surface (28) are bent toward a side close to the rotation center of the ball mill (1), and the shape of the strip-shaped arc surface (28) is adapted to the shape of the inner wall of the ball mill (1).

9. A method for preparing a solid composite hydrogen storage material, using the solid composite hydrogen storage material preparation device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: Add bulk raw materials and steel balls into the ball mill (1); S2: During the ball milling process of the ball mill (1) on the bulk raw material, the strip-shaped shifting plate (18) of the ball mill (1) drives the steel balls to a high position and then drops them; S3: After the ball milling is completed, the cover plate (31) of the discharge port is opened, and the powdered raw material is discharged from the discharge port.

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