A material drying apparatus

Abstract

This utility model discloses a material drying device, including a drying barrel, a vibration assembly, a first drying tray, and a second drying tray. The drying barrel has a feed inlet at its upper end and a discharge outlet at its lower end. The vibration assembly is mounted on the drying barrel and includes a vibration rod that drives the vibration rod to vibrate vertically. Multiple first and second drying trays are mounted on the vibration rod and are arranged alternately along the vertical direction. The supporting area of ​​the first drying tray is larger than that of the second drying tray, and a discharge outlet is located in the middle of the first drying tray. The material drying device provided by this utility model, by alternately arranging the first and second drying trays and continuously vibrating them under the action of the vibration assembly, causes the material to vibrate and fall layer by layer between the first and second drying trays, and finally be discharged from the discharge outlet. This effectively extends the drying path of the material within the drying barrel, ensuring thorough drying of the material.

Description

Technical Field

[0001] This utility model relates to the field of material drying technology, and in particular to a material drying device. Background Technology

[0002] In the production of ternary material precursors, the drying unit determines the moisture content of the finished precursor and has a certain impact on the crystal structure. The correct selection of the dryer directly affects the operating environment and operating costs. When selecting a dryer, the following factors generally need to be considered: the dryer should not pollute the environment, be easy to operate, have high thermal efficiency, low energy consumption, small footprint, ensure product quality, and ensure that magnetic foreign matter after drying meets product requirements.

[0003] Commonly used drying techniques include static drying using an oven and disc dryers using conventional rake blades.

[0004] When using an oven for static drying, uneven hot air circulation may occur inside the oven, leading to significant differences in heating of the material in different areas. Static drying lacks material movement, making it difficult for moisture to diffuse from the material's interior to the surface. Furthermore, during static drying, the material remains in a fixed position for an extended period, potentially causing structural damage due to thermal stress or uneven shrinkage. Moreover, the long drying cycle increases energy consumption and costs. The hardened shell that forms on the surface after drying hinders the evaporation of internal moisture.

[0005] When using a conventional rake-blade disc dryer, the rake blades exert shear and impact forces on the particles during the agitation process. Ternary precursors (such as nickel-cobalt-manganese hydroxide) are typically micron-sized porous particles with low mechanical strength. This leads to a wider particle size distribution (e.g., increased fine powder), which in turn affects the compactness and electrochemical performance of the subsequent sintering process. Reducing the rake blade speed to minimize mechanical damage may sacrifice drying efficiency; increasing the speed or temperature may exacerbate particle breakage or decomposition. Simultaneously, the mechanical friction between the rake blades and the disc surface is a significant source of magnetic foreign matter introduction, easily affecting the purity and properties of the material after drying. Utility Model Content

[0006] In view of this, the purpose of this utility model is to overcome the shortcomings of related technologies, and this utility model provides a material drying device.

[0007] This utility model provides the following technical solution:

[0008] A material drying device includes a drying drum, a vibrating assembly, a first drying tray, and a second drying tray.

[0009] The drying barrel has a feed inlet at its upper end and a discharge outlet at its lower end. Heating components are arranged around the periphery of the drying barrel. A vibration assembly is mounted on the drying barrel and includes a vibration rod that is vertically inserted inside the drying barrel. The vibration assembly can drive the vibration rod to vibrate in the vertical direction. Both the first drying tray and the second drying tray are disposed inside the drying barrel. Both the first and second drying trays are mounted on the vibration rod and are arranged alternately in the vertical direction. The supporting area of ​​the first drying tray is larger than that of the second drying tray, and a discharge port is provided in the middle of the first drying tray.

[0010] As a further improvement to the above technical solution, the height of the middle part of the first drying tray is lower than the height of its periphery, that is, the first drying tray is an umbrella shape with the tip pointing downwards; the height of the middle part of the second drying tray is higher than the height of its periphery, that is, the second drying tray is an umbrella shape with the tip pointing upwards.

[0011] As a further improvement to the above technical solution, both the first drying tray and the second drying tray are provided with material guide grooves on their support surfaces.

[0012] As a further improvement to the above technical solution, the guide trough is spiral-shaped.

[0013] As a further improvement to the above technical solution, the rotation direction of the guide groove on the first drying tray is opposite to that of the guide groove on the second drying tray.

[0014] As a further improvement to the above technical solution, the vibration assembly also includes a vibration seat and a driving member. The vibration seat is installed at one end of the vibration rod, and an elastic member is provided between the vibration seat and the outer side wall of the drying barrel. The driving member is disposed on the vibration seat, and the driving member can drive the vibration seat to compress or stretch the elastic member, thereby driving the vibration rod to reciprocate in the vertical direction.

[0015] As a further improvement to the above technical solution, the driving component includes a drive motor and an eccentric component. The drive motor is mounted on the vibration base, and the eccentric component is disposed on the rotating shaft of the drive motor. The axis of the rotating shaft of the drive motor is perpendicular to the axis of the vibration rod.

[0016] As a further improvement to the above technical solution, a vibrating plate is provided at the other end of the vibrating rod away from the vibrating seat, and the elastic element is provided between the vibrating plate and the outer wall of the drying barrel.

[0017] As a further improvement to the above technical solution, multiple magnetic suction elements are evenly distributed along the vertical direction on the vibration rod.

[0018] As a further improvement to the above technical solution, the lower end of the side wall of the drying barrel is provided with an air inlet, which is used to connect an external air pump; the upper end of the side wall of the drying barrel is provided with an air outlet.

[0019] As a further improvement to the above technical solution, a filter device is provided at the air outlet.

[0020] As a further improvement to the above technical solution, the bottom of the drying barrel is provided with an inclined guide plate, and the lowest end of the guide plate is connected to the discharge port.

[0021] Compared with related technologies, the beneficial effects of this utility model are:

[0022] The material drying equipment provided by this utility model requires the operator to first activate the heating function of the drying drum. This heating function creates a suitable high-temperature environment inside the drum, thereby accelerating the evaporation of moisture from the material. After the heating function has been running stably for a period of time, ensuring the internal temperature of the drying drum reaches the preset value, the operator then activates the vibration component.

[0023] The vibration assembly is one of the core components of this equipment, capable of generating stable vibrational energy. When activated, it drives the connected vibrating rod and the alternating first and second drying trays fixed to it to vibrate vertically. This continuous and regular vibration provides the power for the movement of material on the drying trays.

[0024] Subsequently, the operator feeds the material to be dried into the drying drum through the feed inlet. After entering the drying drum, the material first falls onto the topmost drying tray. Because the first drying tray is vibrating, the material gradually moves with the vibration. When the material reaches the center of the first drying tray, it falls from the center discharge port onto the second drying tray below.

[0025] It is worth noting that the support area of ​​the first drying tray is designed to be larger than that of the second drying tray. This design allows the material to be more dispersed on the second drying tray. When the material moves to the edge as the second drying tray vibrates, it will fall from the edge onto the first drying tray below. This process repeats, with the material vibrating and falling layer by layer between the first and second drying trays, forming a tortuous movement path.

[0026] The layer-by-layer vibration and descent process of the material within the drying drum effectively extends its movement path. This means the material stays in the drying drum for a longer period, allowing for more contact with the hot air and ensuring thorough drying.

[0027] Furthermore, this equipment can effectively achieve continuous drying of materials. Because the movement of materials on the drying trays is continuous and the heating function of the drying drum is consistently stable, materials to be dried can be continuously fed into the drying drum, and dried materials can be discharged from the discharge port. This continuous drying method greatly improves the efficiency of material drying.

[0028] More notably, as the material bounces up and down with the vibration of the first or second drying tray, its outer surface not only comes into full contact with the hot air inside the drying drum, improving the drying effect, but the high-frequency collisions between the material and the drying trays also effectively and uniformly break up any clumps in the material. This breaking action not only helps further evaporation of moisture from the material but also ensures the final production quality, resulting in a more uniform and finer dried material.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the material drying device from one perspective in one embodiment of the present invention;

[0032] Figure 2 This shows a schematic diagram of the structure of the first drying tray in one embodiment of the present invention.

[0033] Figure 3 A schematic diagram of the second drying tray from one perspective is shown in one embodiment of the present invention.

[0034] Explanation of key component symbols:

[0035] 100-Drying drum; 110-Feed inlet; 120-Discharge outlet; 130-Air inlet; 140-Air outlet; 141-Filter device; 200-Vibration assembly; 210-Vibration rod; 211-Vibration plate; 212-Magnetic suction component; 220-Vibration seat; 230-Elastic component; 240-Drive motor; 250-Eccentric component; 300-First drying tray; 310-Discharge outlet; 320-Guide chute; 400-Second drying tray. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] Combination Figure 1 , Figure 2 As shown, an embodiment of this utility model provides a material drying device, including a drying drum 100, a vibration assembly 200, a first drying tray 300 and a second drying tray 400.

[0042] The drying barrel 100 has a feed inlet 110 at its upper end and a discharge outlet 120 at its lower end. Heating components are arranged around the periphery of the drying barrel 100. These heating components can be heating wires laid on the inner wall of the drying barrel 100, or heating pipes wound around the outside of the drying barrel 100. Hot water or steam is introduced into the heating pipes to heat the interior of the drying barrel 100. A vibration assembly 200 is mounted on the drying barrel 100 and includes a vibration rod 210. The moving rod 210 is vertically inserted inside the drying barrel 100, and the vibration assembly 200 can drive the vibrating rod 210 to vibrate in the vertical direction; the first drying tray 300 and the second drying tray 400 are both disposed inside the drying barrel 100; the first drying tray 300 and the second drying tray 400 are both mounted on the vibrating rod 210, and multiple trays are arranged alternately in the vertical direction; the supporting area of ​​the first drying tray 300 is larger than the supporting area of ​​the second drying tray 400, and the first drying tray 300 is provided with a material discharge port 310 in the middle.

[0043] In this embodiment, the material drying equipment requires the operator to first activate the heating function of the drying drum 100. This heating function creates a suitable high-temperature environment inside the drying drum 100, thereby accelerating the evaporation of moisture from the material. After the heating function has been running stably for a period of time, ensuring that the internal temperature of the drying drum 100 reaches the preset value, the operator then activates the vibration component 200.

[0044] When the vibration assembly 200 is activated, it drives the connected vibration rod 210 and the alternating first drying tray 300 and second drying tray 400 fixed on the vibration rod 210 to vibrate vertically. This vibration is continuous and regular, providing power for the movement of materials on the drying trays.

[0045] Subsequently, the operator feeds the material to be dried into the drying drum 100 through the feed inlet 110. After entering the drying drum 100, the material first falls onto the top first drying tray 300. Because the first drying tray 300 is vibrating, the material gradually moves with the vibration of the drying tray. When the material reaches the center of the first drying tray 300, it falls from the discharge port 310 at the center of the first drying tray 300 onto the second drying tray 400 below.

[0046] It is worth noting that the support area of ​​the first drying tray 300 is designed to be larger than that of the second drying tray 400. This design allows the material to be more dispersed on the second drying tray 400. When the material moves to the edge position due to the vibration of the second drying tray 400, it will fall from the edge onto the first drying tray 300 below. This process repeats, with the material vibrating and falling layer by layer between the first drying tray 300 and the second drying tray 400, forming a tortuous movement path.

[0047] The layer-by-layer vibration and descent process of the material within the drying drum 100 effectively extends the material's movement path within the drum. This means the material stays in the drying drum 100 for a longer period, thus having more opportunities to fully contact the hot air inside the drum, ensuring thorough drying of the material.

[0048] Furthermore, this embodiment can effectively achieve continuous drying of materials. Since the movement of the material on the drying tray is continuous, and the heating function of the drying drum 100 is consistently stable, materials to be dried can be continuously fed into the drying drum 100, and the dried material can be discharged from the discharge port 120. This continuous drying method greatly improves the efficiency of material drying.

[0049] More notably, as the material bounces up and down with the vibration of the first drying disc 300 or the second drying disc 400, not only does the outer surface of the material come into full contact with the hot air inside the drying drum 100, improving the drying effect, but the high-frequency collision between the material and the drying discs also effectively and uniformly breaks up any clumps in the material. This breaking action not only helps further evaporation of moisture from the material but also ensures the final production quality, resulting in a more uniform and finer dried material.

[0050] In some specific embodiments, the central height of the first drying tray 300 is lower than its peripheral height, meaning the first drying tray 300 is umbrella-shaped with the tip pointing downwards; from an overall appearance perspective, it resembles an umbrella structure with the tip pointing downwards. This design is not arbitrary but rather carefully considered. When material is placed on the first drying tray 300, due to its lower central position, the material will naturally converge towards the central area under vibration, and then fall from the central discharge port 310, thus guiding the material to move along a preset path. The central height of the second drying tray 400 is higher than its peripheral height, meaning the second drying tray 400 is umbrella-shaped with the tip pointing upwards; this design causes the material, when on the second drying tray 400, to be affected by vibration and its own gravity, moving along the inclined tray surface to the edge, and finally falling from the edge to the first drying tray 300 below.

[0051] By adopting the specific shape settings described above for the first drying tray 300 and the second drying tray 400, several important functions can be achieved. During the material drying process, the material moves relative to the drying trays due to vibration. This unique umbrella-shaped structure design facilitates precise guidance of the material's movement trajectory. The material moves along a predetermined path on the drying trays, significantly reducing the possibility of it falling directly through the gap between the drying trays and the inner wall of the drying drum 100 during relative movement. If the material falls directly through the gap, it will not only disrupt the drying process within the drying drum 100 but may also prevent some material from fully contacting the hot air, affecting the drying effect. This shape design ensures that the material falls layer by layer along a reasonable path on the drying trays, allowing it to remain in the drying drum 100 for a longer period, thus guaranteeing reliable and thorough heating and drying, and improving the quality and efficiency of material drying.

[0052] In some specific embodiments, both the first drying tray 300 and the second drying tray 400 are provided with guide grooves 320. The main function of the guide grooves 320 is to further guide the movement trajectory of the material falling on the first drying tray 300 or the second drying tray 400. When the material enters the drying drum 100 and falls onto the drying tray, the material will begin to move due to the vibration of the drying tray. At this time, the guide grooves 320 can constrain the movement direction of the material, allowing the material to move orderly along a preset path. In this way, parameters such as the residence time of the material on the drying tray, the contact area with the hot air, and the moving speed can be better controlled, thereby further improving the drying effect of the material and ensuring that the moisture in the material can evaporate more fully.

[0053] Furthermore, the convex and concave guide grooves 320 on the drying tray offer additional benefits. During the vibration of the drying tray, the material bounces up and down with the vibration and moves along the guide grooves 320. Due to the presence of the guide grooves 320, the material continuously collides with the side walls of the guide grooves 320 and other materials during its movement. This collision and crushing action can break up any clumps in the material, making the material particles more uniform. Uniformly sized particles can be heated more evenly during the drying process, avoiding localized overheating or insufficient drying, thereby further improving the drying uniformity of the material and ensuring that the final dried material meets production requirements.

[0054] In some specific embodiments, the guide trough 320 is spiral-shaped; when material falls onto the drying tray, it begins to move due to the vibration of the tray. The spiral guide trough 320 guides the material to continuously spiral along its path. Compared to straight or other simple-shaped guide troughs 320, the spiral guide trough 320 significantly increases the path length of the material on the drying tray. As the material moves along the spiral guide trough 320, it has longer and more thorough contact with the hot air on the drying tray, further extending its trajectory and helping to improve the thoroughness and uniformity of drying, ensuring the material achieves the desired drying effect.

[0055] Combination Figure 2 , Figure 3 As shown, in some specific embodiments, the guide groove 320 on the first drying tray 300 rotates in the opposite direction to the guide groove 320 on the second drying tray 400. That is, when viewed from the top of the drying barrel 100 downwards, the guide groove 320 on the first drying tray 300 extends in a clockwise (or counterclockwise) spiral, while the guide groove 320 on the second drying tray 400 extends in a counterclockwise (or clockwise) spiral.

[0056] This design of oppositely rotating guide troughs 320 allows the material to fall layer by layer within the drying drum 100 as the drying trays vibrate during the material's descent. When the material falls from the first drying tray 300 to the second drying tray 400, the opposite rotation of the guide troughs 320 on the two trays results in the material being guided by forces in different directions during its descent. These different guiding forces make the material's trajectory during the vibrating descent more complex, exhibiting more pronounced nonlinear characteristics.

[0057] The increased non-linear motion trajectory of the material means a more uniform residence time distribution within the drying drum 100, and more opportunities for contact with hot air. This allows the material to absorb heat more fully, resulting in more complete evaporation of moisture, thereby further improving the drying effect and ensuring that the dried material meets production requirements.

[0058] In some specific embodiments, the vibration assembly 200 further includes a vibration seat 220 and a driving member. The vibration seat 220 is mounted on one end of the vibration rod 210. An elastic member 230 is provided between the vibration seat 220 and the outer wall of the drying barrel 100. The elastic member 230 can specifically be a spring, used to buffer the vibration movement of the vibration rod 210. The driving member is disposed on the vibration seat 220. The driving member can drive the vibration seat 220 to compress or stretch the elastic member 230, thereby driving the vibration rod 210 to reciprocate in the vertical direction, thereby causing the first drying tray 300 and the second drying tray 400 to perform stable periodic vibration.

[0059] In some specific embodiments, the driving component includes a drive motor 240 and an eccentric component 250. The drive motor 240 is mounted on the vibration base 220, and the eccentric component 250 is disposed on the rotating shaft of the drive motor 240. When the drive motor 240 starts, the rotating shaft drives the eccentric component 250 to rotate together. In practical applications, the eccentric component 250 can specifically take the form of an eccentric flywheel. The eccentric flywheel has specific structural characteristics, with its center of gravity offset from the axis of the rotating shaft. This design allows the eccentric flywheel to generate periodic centrifugal force changes during rotation. The axis of the rotating shaft of the drive motor 240 is perpendicular to the axis of the vibration rod 210; this perpendicular arrangement design allows the centrifugal force generated when the eccentric component 250 rotates to be effectively converted into vibration along the axis of the vibration rod 210. When the drive motor 240 is powered on and started, the rotating shaft begins to rotate at high speed, thereby driving the eccentric flywheel to rotate. Due to the eccentric characteristics of the eccentric flywheel, it generates periodic centrifugal force during rotation. This centrifugal force is transmitted to the vibrating rod 210 through the drive motor 240 and the vibrating seat 220, causing the drive motor 240 itself, the vibrating seat 220 and the vibrating rod 210 to vibrate periodically.

[0060] In some specific embodiments, a vibrating plate 211 is provided at the other end of the vibrating rod 210 away from the vibrating seat 220. The elastic element 230 is provided between the vibrating plate 211 and the outer wall of the drying barrel 100. This facilitates the limitation of the relative movement range between the vibrating rod 210 and the drying barrel 100, and further buffers the movement process of the vibrating rod 210. This buffering effect can not only reduce the impact of vibration on the drying barrel 100 and other parts of the equipment, and reduce the noise during equipment operation, but also extend the service life of the equipment. At the same time, it ensures that the material can be uniformly subjected to vibration during the drying process, further improving the drying effect and quality of the material.

[0061] In some specific embodiments, the vibrating rod 210 is provided with a plurality of magnetic attracting elements 212 evenly distributed along the vertical direction to attract magnetic particles in the material and improve the processing quality of the final discharged material.

[0062] In some specific embodiments, the lower end of the side wall of the drying barrel 100 is provided with an air inlet 130 for connecting an external air pump, and the upper end of the side wall of the drying barrel 100 is provided with an air outlet 140. During the material drying process, the moisture in the material will gradually evaporate into water vapor, which mixes with hot air to form a humid gas. If this humid gas is not discharged in time, the humidity inside the drying barrel 100 will continue to rise, thereby affecting the drying efficiency. The function of the air outlet 140 is to quickly discharge the moisture and humid gas evaporated from the material inside the drying barrel 100. Through the air outlet 140, the humid gas can smoothly leave the drying barrel 100, so that the drying barrel 100 can always maintain a relatively dry environment, and the hot air can continuously exchange heat with the material, ensuring that the material drying process can be carried out efficiently and stably, improving the quality and efficiency of material drying.

[0063] In some specific embodiments, a filter device 141 is provided at the air outlet 140. During the material drying process, the moisture in the material evaporates, and any small particles, dust, etc., that may be present are discharged from the air outlet 140 along with the hot air. If directly discharged into the atmosphere, it will cause a certain degree of pollution to the atmospheric environment, such as affecting air quality and disrupting the ecological balance. The filter device 141 installed at the air outlet 140 can effectively intercept and adsorb these harmful substances. When the gas carrying pollutants passes through the filter device 141, the particulate matter, dust, etc., are trapped by the filter material, and some harmful gas components may also be removed through chemical adsorption or physical adsorption.

[0064] In some specific embodiments, the bottom of the drying barrel 100 is provided with an inclined guide plate, the lowest end of which is connected to the discharge port 120, so that the material falling at the bottom of the drying barrel 100 can be quickly gathered at the discharge port 120 and discharged through the guide plate, thereby improving the discharge efficiency of this embodiment.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A material drying device, characterized in that, include: A drying barrel (100) is provided with a feed inlet (110) at the upper end and a discharge outlet (120) at the lower end. A vibration assembly (200) is disposed on the drying barrel (100). The vibration assembly (200) includes a vibration rod (210), which is vertically inserted into the drying barrel (100). The vibration assembly (200) can drive the vibration rod (210) to vibrate in the vertical direction. The first drying tray (300) and the second drying tray (400) are both disposed inside the drying barrel (100); the first drying tray (300) and the second drying tray (400) are both mounted on the vibrating rod (210), and multiple trays are arranged alternately in the vertical direction; the supporting area of ​​the first drying tray (300) is larger than the supporting area of ​​the second drying tray (400), and the first drying tray (300) has a discharge port (310) in the middle.

2. The material drying equipment according to claim 1, characterized in that, The height of the center of the first drying tray (300) is lower than the height of its periphery; the height of the center of the second drying tray (400) is higher than the height of its periphery.

3. The material drying equipment according to claim 2, characterized in that, The first drying tray (300) and the second drying tray (400) are both provided with material guide grooves (320).

4. The material drying equipment according to claim 3, characterized in that, The feed trough (320) is spiral-shaped.

5. The material drying equipment according to claim 4, characterized in that, The direction of rotation of the guide groove (320) on the first drying tray (300) is opposite to that of the guide groove (320) on the second drying tray (400).

6. The material drying equipment according to claim 1, characterized in that, The vibration assembly (200) also includes a vibration seat (220) and a driving member. The vibration seat (220) is installed at one end of the vibration rod (210). An elastic member (230) is provided between the vibration seat (220) and the outer wall of the drying barrel (100). The driving member is disposed on the vibration seat (220). The driving member can drive the vibration seat (220) to compress or stretch the elastic member (230), thereby driving the vibration rod (210) to reciprocate in the vertical direction.

7. The material drying equipment according to claim 6, characterized in that, The driving component includes a drive motor (240) and an eccentric component (250). The drive motor (240) is mounted on the vibration seat (220), and the eccentric component (250) is disposed on the rotating shaft of the drive motor (240). The axis of the rotating shaft of the drive motor (240) is perpendicular to the axis of the vibration rod (210).

8. The material drying equipment according to claim 6, characterized in that, The vibrating rod (210) has a vibrating plate (211) at the other end away from the vibrating seat (220), and the elastic element (230) is provided between the vibrating plate (211) and the outer wall of the drying barrel (100).

9. The material drying equipment according to any one of claims 1 to 8, characterized in that, Multiple magnetic attractors (212) are evenly distributed along the vertical direction on the vibrating rod (210).

10. The material drying equipment according to any one of claims 1 to 8, characterized in that, The drying barrel (100) has an air inlet (130) at the lower end of its side wall, which is used to connect an external air pump; the drying barrel (100) has an air outlet (140) at the upper end of its side wall.

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