Disc dryer
By setting up a wheel lifting device on the rake arm of the disk dryer, it rolls on the drying disk, the problem of doping agglomerated hard particles in the lithium salt and ternary precursor powder is solved, and the equipment production capacity and powder quality are improved .
Patent Information
- Application Number
- CN202420977380.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-08
AI Technical Summary
When using a disk dryer to dehydrate and dry the lithium salt and ternary precursor, the powder is easily doped with agglomerated hard particles, affecting the equipment production capacity and powder quality.
A disk dryer is designed, by providing at least one wheel chassis device on the rake arm, the wheel chassis device includes a wheel on the drying plate. When the spindle drives the rake arm to rotate, the rake arm pushes the wheel to dry. Roll on the plate to crush the agglomerated material particles.
It reduces the chance of doping pellets in the powder after drying, and improves the equipment production capacity and the quality of the powder.
Smart Images
Figure CN222460007U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of drying technology, and in particular to a disc drying machine. Background Art
[0002] With the development of the new energy industry, the demand for cathode materials for ternary lithium batteries is increasing. Lithium salt and precursor are two important raw materials for manufacturing cathode materials for ternary lithium batteries. In the production process of related technologies, the raw materials of lithium salt and ternary precursor need to be dehydrated and dried before the cathode materials are prepared.
[0003] At present, the dehydration and drying of lithium salts and ternary precursors is mainly carried out by disk drying machines. There are multiple drying disks inside the disk drying machine, and the materials can move on the drying disks, and the heat transfer and airflow of the disk surface are used to dry the materials.
[0004] However, after drying using the above scheme, the powder is easily mixed with agglomerated hard particles, thereby affecting the equipment production capacity and powder quality. Utility Model Content
[0005] In order to overcome the above-mentioned defects under the relevant technology, the purpose of the present application is to provide a disk dryer. The disk dryer of the present application is beneficial to reduce the probability of mixed particulate materials in the powder after drying, thereby improving the equipment production capacity and powder output quality.
[0006] The present application provides a disk drying machine, comprising:
[0007] Spindle;
[0008] At least one drying plate, the drying plate is sleeved on the main shaft;
[0009] A rake arm, which is fixedly connected to the main shaft;
[0010] At least one wheel-chasing device, the wheel-chasing device is connected to the rake arm, the wheel-chasing device is provided with a wheel-chasing device, and the wheel-chasing device is arranged on the drying plate;
[0011] The driving device is connected with the main shaft to drive the main shaft to rotate. When the main shaft rotates, it can drive the rake arm connected thereto to rotate. When the rake arm rotates, it can push the chase wheel to make the chase wheel roll on the drying plate.
[0012] In a possible implementation, a through hole is provided on the drying plate, the main shaft passes through the through hole, and a gap is formed between the drying plate and the main shaft.
[0013] In a possible implementation, a plurality of rake arms are provided on the drying plate, and the plurality of rake arms are arranged at intervals along the circumference of the drying plate;
[0014] A plurality of wheel devices are arranged on the rake arm, and the plurality of wheel devices are arranged at intervals along the extending direction of the rake arm.
[0015] In a possible implementation, the wheel-driving device further includes a wheel-driving frame and a wheel-driving shaft, the wheel-driving wheel is arranged in the wheel-driving frame, the wheel-driving shaft passes through the wheel-driving wheel, both ends of the wheel-driving shaft are connected to the wheel-driving frame, and the wheel-driving frame is fixedly connected to the rake arm.
[0016] In a possible implementation, the wheel chaser includes a metal part and a non-metal layer sleeved on the outside of the metal part; the wheel chaser shaft is a non-metal shaft; the wheel chaser frame is a metal frame, and a non-metal coating is provided on the outside of the wheel chaser frame.
[0017] In a possible implementation, the wheel-driving frame further includes two wheel-driving scrapers that are arranged opposite to each other. The two wheel-driving scrapers are respectively located on both sides of the wheel-driving, and the extension direction of the wheel-driving scrapers is parallel to the extension direction of the wheel-driving shaft.
[0018] In a possible implementation, a first fixing sleeve is provided on the rake arm, the first fixing sleeve is sleeved on the rake arm and fixedly connected to the rake arm, and the wheel chaser frame is fixedly connected to the first fixing sleeve via a first fixing plate.
[0019] In a possible implementation, the rake arm is further provided with a plurality of rake blades, and the plurality of rake blades and the plurality of wheel devices are alternately arranged along the extension direction of the rake arm.
[0020] In a possible implementation, a second fixing sleeve is provided on the rake arm, the second fixing sleeve is sleeved on the rake arm and fixedly connected to the rake arm, and the rake leaf and the second fixing sleeve are fixedly connected via a second fixing plate.
[0021] In a possible implementation, a non-metallic layer is provided on the rake arm, the first fixed sleeve, the second fixed sleeve, the first fixed plate and the second fixed plate are all metal parts, and the surfaces of the first fixed sleeve, the second fixed sleeve, the first fixed plate and the second fixed plate are all provided with a non-metallic coating.
[0022] The present application provides a disk drying machine, including: a main shaft, at least one drying disk, a rake arm, at least one wheel device and a driving device, the drying disk is sleeved on the main shaft, the rake arm is fixedly connected to the main shaft, the wheel device is connected to the rake arm, the wheel device is provided with a wheel, the wheel is arranged on the drying disk, the driving device is connected to the main shaft to drive the main shaft to rotate, when the main shaft rotates, it can drive the rake arm connected thereto to rotate, when the rake arm rotates, it can push the wheel, so that the wheel rolls on the drying disk. The present application arranges at least one wheel device on the rake arm, the wheel device includes a wheel arranged on the drying disk, when the main shaft drives the rake arm to rotate, the rake arm can push the wheel, so that the wheel rolls on the drying disk, so as to crush the agglomerated material particles on the drying disk, so as to reduce the probability of mixed granular materials in the powder after drying, thereby improving the equipment production capacity and the quality of the powder. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technical descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0024] Figure 1 A simplified structural diagram of a disk drying machine provided in one embodiment of the present application;
[0025] Figure 2 A schematic diagram of the connection structure of a wheel-chasing device provided in one embodiment of the present application;
[0026] Figure 3 A top view of a wheel-chasing device provided in one embodiment of the present application;
[0027] Figure 4 A simplified diagram of the connection structure of the rake blades provided in one embodiment of the present application.
[0028] Reference numerals:
[0029] 100-spindle;
[0030] 200-drying tray;
[0031] 300-rake arm; 310-first fixing sleeve; 320-first fixing plate; 330-second fixing sleeve; 340-second fixing plate;
[0032] 400-wheel-chasing device; 410-wheel-chasing; 420-wheel-chasing frame; 421-wheel-chasing scraper; 430-wheel-chasing shaft;
[0033] 500-driving device;
[0034] 600-Rake Page. DETAILED DESCRIPTION
[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.
[0036] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0037] As described in the background technology, when the disk dryer is used to dehydrate and dry lithium salts and ternary precursors in the related art, particles are easily mixed in the final powder, thus affecting the quality of the powder. Research has found that the cause of the above problem is that the raw materials of lithium salts and ternary precursors have a high moisture content. When drying in the disk dryer, the water in the raw materials may not be discharged in time after evaporation in the disk dryer. The evaporated water condenses and drips onto the material on the drying disk after being cooled, thereby agglomerating the material particles and causing particles to be mixed in the dried powder.
[0038] In order to solve the above problems, some improvement schemes have been proposed in the schemes of the related technologies. For example, the amount of water evaporated during drying can be reduced by reducing the feed amount of the disc dryer; however, reducing the feed amount reduces the production capacity of the disc dryer and increases the corresponding cost. For another example, the dust collection air volume of the disc dryer can be increased by replacing a high-power exhaust fan, so that the water evaporated during drying can be discharged from the disc dryer as soon as possible; however, the above scheme also discharges a lot of powder while discharging the water, which reduces the quality of the final powder and affects the production capacity. For another example, the dried powder can be further crushed; however, adding a crushing process requires adding corresponding crushing equipment, which increases the production cost.
[0039] In view of this, an embodiment of the present application aims to provide a disc dryer, by arranging at least one wheel device on the rake arm, the wheel device includes a wheel arranged on the drying disc, when the main shaft drives the rake arm to rotate, the rake arm can push the wheel to make the wheel roll on the drying disc, thereby crushing the agglomerated material particles on the drying disc, so as to reduce the probability of mixed granular materials in the powder after drying, thereby improving the equipment production capacity and powder output quality.
[0040] The contents of the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings so that those skilled in the art can understand the contents of the present application in more detail.
[0041] Figure 1 A simplified structural diagram of a disk drying machine provided in one embodiment of the present application; Figure 2 A schematic diagram of the connection structure of a wheel-chasing device provided in one embodiment of the present application; Figure 3 A top view of a wheel-chasing device provided in one embodiment of the present application.
[0042] Please refer to Figure 1-Figure 3 The present embodiment provides a disk drying machine, the disk drying machine is provided with a housing, and the housing includes:
[0043] The main shaft 100 can be arranged in the housing along a vertical direction.
[0044] At least one drying plate 200 is provided, and the drying plate 200 is sleeved on the main shaft 100 and moves independently with the main shaft 100; that is, the drying plate 200 can be generally arranged horizontally, and the drying plate 200 does not move with the main shaft 100, and the outer peripheral side of the drying plate 200 can be fixed on the casing, for example.
[0045] The rake arm 300 is fixedly connected to the main shaft 100 and can move with the main shaft 100. The rake arm 300 and the main shaft 100 can be welded or connected as a whole by a detachable connection.
[0046] At least one wheel device 400 is connected to the rake arm 300 , and the specific connection structure can be selected according to needs. The wheel device 400 is provided with a wheel 410 , which is arranged on the drying plate 200 and can roll on the drying plate 200 .
[0047] The driving device 500 is connected to the main shaft 100 to drive the main shaft 100 to rotate. The driving device 500 may include a motor, for example, which is arranged outside the housing, and the output end of the motor is connected to the main shaft 100, thereby driving the main shaft 100 to rotate. When the main shaft 100 rotates, it can drive the rake arm 300 connected thereto to rotate, and when the rake arm 300 rotates, it can push the driving wheel 410, so that the driving wheel 410 rolls on the drying plate 200.
[0048] The present application can roll the wheel 410 on the drying plate 200 to crush the agglomerated material particles on the drying plate 200 to reduce the probability of mixed granular materials in the powder after drying, thereby improving the equipment capacity and powder output quality.
[0049] In a possible implementation, the drying plate 200 of this embodiment may be provided with a through hole, the main shaft 100 is passed through the through hole, and a gap is formed between the drying plate 200 and the main shaft 100. That is, the main shaft 100 passes through the through hole on the drying plate 200 and is connected to the driving device 500. Since there is a gap between the drying plate 200 and the main shaft 100, the two are not in contact, so that the drying plate 200 does not rotate with the main shaft 100.
[0050] In a possible implementation manner, a plurality of rake arms 300 are disposed on the drying plate 200 of this embodiment, and the plurality of rake arms 300 are spaced apart along the circumference of the drying plate 200 .
[0051] By arranging a plurality of rake arms 300 on the circumference of the drying plate 200, the frequency of the material on the drying plate 200 being crushed by the wheel device 400 can be increased, which is beneficial to reducing the content of material particles in the material. The number of rake arms 300 on the drying plate 200 can be determined as needed, for example, 3-9.
[0052] Furthermore, each rake arm 300 is provided with a plurality of wheel devices 400 , and the plurality of wheel devices 400 are arranged at intervals along the extending direction of the rake arm 300 .
[0053] Through the above scheme, it is ensured that a plurality of wheel devices 400 are arranged at intervals in the radial direction of the drying plate 200, so that the materials at various locations on the drying plate 200 can be crushed by the wheel devices 400 to reduce the content of material particles in the materials. The number of wheel devices 400 on each rake arm 300 can be determined as required, for example, 1-4.
[0054] like Figure 2 and Figure 3 As shown, the wheel-chasing device 400 of this embodiment further includes a wheel-chasing frame 420 and a wheel-chasing shaft 430. The wheel-chasing frame 420 is generally square and is formed by four side walls connected end to end. The wheel-chasing frame 410 is arranged in the wheel-chasing frame 420. The wheel-chasing shaft 430 is penetrated through the wheel-chasing frame 410, and the two ends of the wheel-chasing shaft 430 are connected to two opposite side walls on the wheel-chasing frame 420. The wheel-chasing frame 420 is fixedly connected to the rake arm 300 as a whole, so that it rotates together when the rake arm 300 rotates.
[0055] Optionally, in this embodiment, the wheel shaft 430 is detachably connected to the wheel frame 420, so as to facilitate the replacement of the wheel 410, so that the wheel frame 420 can be adapted to the wheels 410 of various volumes and masses to meet the needs of different materials.
[0056] In order to prevent metal ions from mixing into the material, the wheel 410 of this embodiment includes a metal part and a non-metal layer (such as a tetrafluoroethylene layer, etc.) sleeved on the outside of the metal part. The wheel shaft 430 is a non-metal shaft, such as a tetrafluoroethylene shaft. The wheel frame 420 is a metal frame, and the outside of the wheel frame 420 is provided with a non-metal coating, such as a tungsten carbide coating. In this way, the surface material of the wheel device 400 exposed to the outside is all non-metallic material, thereby preventing metal ions from mixing into the material.
[0057] Please continue to refer to Figure 3 The wheel frame 420 of this embodiment further includes two wheel scrapers 421 arranged opposite to each other. The two wheel scrapers 421 are respectively located on both sides of the wheel 410. The extension direction of the wheel scrapers 421 is parallel to the extension direction of the wheel shaft 430. The wheel scrapers 421 can be arranged at an angle, with one end close to the wheel 410 and the other end away from the wheel 410. By arranging the wheel scrapers 421, the materials adhering to the surface of the wheel 410 can be scraped off in time, thereby facilitating the working stability of the wheel 410 and the drying efficiency of the materials.
[0058] In order to fix the wheel-driving device 400 with the rake arm 300, in this embodiment, the rake arm 300 is provided with a first fixing sleeve 310, which is sleeved on the rake arm 300 and fixedly connected with the rake arm 300. The first fixing sleeve 310 can be, for example, an elastic sleeve, which is tightly wrapped on the rake arm 300 by its own elasticity. The wheel-driving frame 420 is fixedly connected with the first fixing sleeve 310 through the first fixing plate 320. For example, two first fixing sleeves 310 arranged opposite to each other can be provided on the rake arm 300, one end of the first fixing plate 320 is connected between the two first fixing sleeves 310, and the other end of the first fixing plate 320 can be connected and fixed with the wheel-driving frame 420 by fasteners such as screws, so that the wheel-driving device 400 is relatively fixedly connected with the rake arm 300.
[0059] Please continue to refer to Figure 1 In this embodiment, the rake arm 300 is further provided with a plurality of rake blades 600, which can be made of materials such as plastic plates, and the plurality of rake blades 600 and the plurality of wheel devices 400 are alternately arranged along the extending direction of the rake arm 300. The rake blades 600 can gather the materials on the drying plate 200 and prevent the materials from falling off the drying plate 200.
[0060] Figure 4 This is a schematic diagram of the connection structure of the rake blades provided in one embodiment of the present application. Figure 4 As shown, the rake arm 300 of the present embodiment is further provided with a second fixing sleeve 330, which is sleeved on the rake arm 300 and fixedly connected to the rake arm 300. The second fixing sleeve 330 may be, for example, an elastic sleeve, which is tightly wrapped on the rake arm 300 by its own elasticity. The rake leaf 600 is fixedly connected to the second fixing sleeve 330 via a second fixing plate 340. For example, two second fixing sleeves 330 arranged opposite to each other may be provided on the rake arm 300, one end of the second fixing plate 340 is connected between the two second fixing sleeves 330, and the other end of the second fixing plate 340 may be connected and fixed to the rake leaf 600 by fasteners such as screws, so that the rake leaf 600 is relatively fixedly connected to the rake arm 300.
[0061] In order to prevent metal ions from mixing into the material, a non-metal layer is provided on the rake arm 300 of the present embodiment. The non-metal layer may be, for example, a non-metal film layer coated on the surface of the rake arm 300, or may be provided outside the rake arm 300 in the form of a non-metal sleeve. The non-metal material may be, for example, tungsten carbide or the like. The first fixing sleeve 310, the second fixing sleeve 330, the first fixing plate 320, and the second fixing plate 340 are all metal parts. The surfaces of the first fixing sleeve 310, the second fixing sleeve 330, the first fixing plate 320, and the second fixing plate 340 are all provided with a non-metal coating. The non-metal coating may be, for example, a tungsten carbide layer.
[0062] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0063] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0064] It should be noted that in the description of this application, the terms "first" and "second" are only used to facilitate the description of different components, and cannot be understood as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.
[0065] The various embodiments or implementation methods in the present application are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0066] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In the present application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A disk drying machine, characterized in that: include: spindle(100); at least one drying plate (200), wherein the drying plate (200) is sleeved on the main shaft (100); A rake arm (300), wherein the rake arm (300) is fixedly connected to the main shaft (100); at least one wheel-chasing device (400), the wheel-chasing device (400) being connected to the rake arm (300), the wheel-chasing device (400) being provided with a wheel-chasing device (410), and the wheel-chasing device (410) being arranged on the drying plate (200); A driving device (500) is connected to the main shaft (100) to drive the main shaft (100) to rotate. When the main shaft (100) rotates, it can drive the rake arm (300) connected thereto to rotate. When the rake arm (300) rotates, it can push the driving wheel (410) to make the driving wheel (410) roll on the drying plate (200).
2. The disk drying machine according to claim 1, characterized in that: The drying plate (200) is provided with a through hole, the main shaft (100) is inserted into the through hole, and a gap is formed between the drying plate (200) and the main shaft (100).
3. The disk drying machine according to claim 1, characterized in that: The drying plate (200) is provided with a plurality of rake arms (300), and the plurality of rake arms (300) are arranged at intervals along the circumference of the drying plate (200); The rake arm (300) is provided with a plurality of the wheel-chasing devices (400), and the plurality of the wheel-chasing devices (400) are arranged at intervals along the extending direction of the rake arm (300).
4. The disk drying machine according to claim 3, characterized in that: The wheel-driving device (400) further comprises a wheel-driving frame (420) and a wheel-driving shaft (430), wherein the wheel-driving wheel (410) is arranged in the wheel-driving frame (420), the wheel-driving shaft (430) penetrates the wheel-driving wheel (410), the two ends of the wheel-driving shaft (430) are connected to the wheel-driving frame (420), and the wheel-driving frame (420) is fixedly connected to the rake arm (300).
5. The disk drying machine according to claim 4, characterized in that: The wheel chaser (410) comprises a metal part and a non-metal layer sleeved on the outside of the metal part; the wheel chaser shaft (430) is a non-metal shaft; the wheel chaser frame (420) is a metal frame, and a non-metal coating is provided on the outside of the wheel chaser frame (420).
6. The disk drying machine according to claim 4, characterized in that: The wheel-driving frame (420) further comprises two wheel-driving scrapers (421) arranged opposite to each other. The two wheel-driving scrapers (421) are respectively located on both sides of the wheel-driving (410). The extending direction of the wheel-driving scrapers (421) is parallel to the extending direction of the wheel-driving shaft (430).
7. The disk drying machine according to claim 4, characterized in that: The rake arm (300) is provided with a first fixing sleeve (310), which is sleeved on the rake arm (300) and fixedly connected to the rake arm (300), and the wheel-chasing frame (420) is fixedly connected to the first fixing sleeve (310) via a first fixing plate (320).
8. The disk drying machine according to claim 7, characterized in that: The rake arm (300) is also provided with a plurality of rake blades (600), and the plurality of rake blades (600) and the plurality of wheel devices (400) are alternately arranged along the extending direction of the rake arm (300).
9. The disk drying machine according to claim 8, characterized in that: The rake arm (300) is provided with a second fixing sleeve (330), which is sleeved on the rake arm (300) and fixedly connected to the rake arm (300), and the rake leaf (600) is fixedly connected to the second fixing sleeve (330) via a second fixing plate (340).
10. The disk drying machine according to claim 9, characterized in that: The rake arm (300) is provided with a non-metallic layer, the first fixing sleeve (310), the second fixing sleeve (330), the first fixing plate (320) and the second fixing plate (340) are all metal parts, and the surfaces of the first fixing sleeve (310), the second fixing sleeve (330), the first fixing plate (320) and the second fixing plate (340) are all provided with a non-metallic coating.