Efficient precise drying device for graphite production

Abstract

The utility model discloses an efficient precise drying device for graphite production, which comprises a box body, a feed hopper and a discharge hopper are respectively arranged at the top and the bottom of the box body, and an electric heating wire is embedded in the inner wall of the box body; a plurality of screening nets are sequentially arranged in the box body from top to bottom, and screening holes of the screening nets are sequentially reduced from top to bottom; a motor is arranged at the top of the box body, a rotating shaft is arranged in the box body, one end of the rotating shaft is connected with the bottom of the box body, and the other end of the rotating shaft extends out of the box body to be connected with the motor; a plurality of groups of stirring assemblies are arranged on the rotating shaft; the number of the stirring assemblies corresponds to that of the screening nets; the stirring assemblies are all arranged above the corresponding screening nets; multiple second stirring rods are arranged at the lower end of the rotating shaft. According to the graphite drying device, the screening net with different screening holes is arranged, and the heating block is arranged at the bottom of the screening net, so that graphite with different drying degrees can be screened, and the graphite drying effect is better guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of graphite drying equipment, and in particular relates to a high-efficiency precision drying device for graphite production. Background Technology

[0002] Flake graphite is a natural crystalline graphite with a fish-scale-like shape. It belongs to the hexagonal crystal system and has a layered structure. It has good properties such as high temperature resistance, electrical conductivity, thermal conductivity, lubrication, plasticity, and acid and alkali resistance. After flake graphite is processed to a certain fineness, it needs to be dried. Publication No. CN220670043U discloses an energy-saving flake graphite drying device, comprising: a drying chamber and a filter chamber. The filter chamber is installed in the middle of one side of the drying chamber, a motor is installed in the middle of the top of the drying chamber, a feed hopper is installed on one side of the top of the drying chamber, and a rotating shaft is installed inside the drying chamber along the output shaft of the motor. A blower chamber is installed at the top of the filter chamber, and a filter chamber is installed at the bottom of the filter chamber. A heating tube is installed near the bottom of the filter chamber, and a drying screen is installed near the top of the filter chamber. A blower is installed in the middle of the bottom of the blower chamber. This device solves the problem that existing flake graphite drying equipment cannot effectively remove moisture from the drying chamber during use, resulting in high humidity and requiring high heat for drying the flake graphite, leading to poor energy-saving performance. It reduces the humidity inside the drying chamber, thereby increasing the drying efficiency. However, this technology involves putting all the graphite into a drying oven and stirring it to dry. The graphite is piled up together, resulting in low drying efficiency. Furthermore, it cannot separate graphite that has been dried to different degrees. Graphite with higher moisture content is mixed with the already dried graphite, which reduces the drying quality. Utility Model Content

[0003] Based on the above background, the purpose of this utility model is to provide a high-efficiency and precision drying device for graphite production.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A high-efficiency precision drying device for graphite production includes a box body, with a feed hopper at the top and a discharge hopper at the bottom of the box body, and an electric heating wire embedded in the inner wall of the box body for heating the inner cavity of the box body, thereby achieving the drying of graphite in the inner cavity;

[0006] The box is provided with several screening screens from top to bottom, and the screen holes of the screening screens decrease in size from top to bottom; heating blocks are provided at the bottom of the screening screens, and the heating blocks are distributed in a cross shape at the bottom of the screening screens.

[0007] The top of the box is equipped with a motor, and the box is equipped with a rotating shaft. One end of the rotating shaft is connected to the bottom of the box, and the other end extends out of the box and is connected to the motor.

[0008] The rotating shaft is equipped with several sets of stirring components, and the number of stirring components corresponds to the number of screening screens and they are all located above the corresponding screening screens.

[0009] The stirring assembly includes a rotating ring, which is fixedly connected to a rotating shaft via a fixing rod. A first stirring rod is provided on the outer side of the rotating ring, and the lower end of the first stirring rod is folded and bent toward the axis of the rotating shaft.

[0010] The lower end of the rotating shaft is provided with several second stirring rods.

[0011] Preferably, each stirring assembly has four first stirring rods evenly distributed in a circular array centered on the axis of the rotating ring.

[0012] Preferably, a first scraper is fixedly connected to the first stirring rod. The first scraper contacts the inner wall of the box. When the rotating shaft drives the stirring assembly to rotate, the first scraper rotates along the inner wall of the box to scrape off the graphite adhering to the inner wall of the box, ensuring the cleanliness of the inside of the box after drying.

[0013] Preferably, a roller is provided above the screening screen, and the side of the roller is rotatably connected to the bottom of the first stirring rod and the first scraper respectively by retaining rings.

[0014] Preferably, a limiting ring is fixedly provided on the rotating shaft, and a limiting groove is provided on the limiting ring. A slider is slidably provided in the limiting groove. The slider is fixedly connected to the crushing roller. When the stirring assembly rotates and stirs, the crushing roller rotates in the retaining ring due to the friction with the screening screen. As the stirring assembly rotates, the crushing roller rotates on the screening screen to crush the graphite that has agglomerated into lumps, thereby improving the drying efficiency. One end of the crushing roller slides along the limiting groove through the slider and rotates on its own, thereby improving the stability of the crushing roller.

[0015] Preferably, a second scraper is provided on one side of the crushing roller, and the bottom of the second scraper abuts against the top of the screen. The second scraper is fixedly connected to the side of the first stirring rod and the first scraper through two connecting rods. After the crushing roller breaks up the graphite that has solidified into blocks, the second scraper scrapes up the graphite on the end face of the screen to prevent the graphite from being crushed into a flat shape due to moisture and clogging the screen.

[0016] Preferably, the lower end of the first stirring rod is provided with several stirring blades on both sides to improve the uniformity of graphite stirring.

[0017] Preferably, the upper end of the first stirring rod has a connecting hole, and a connecting frame is fixed on the rotating ring. One end of the connecting frame is slidably disposed in the connecting hole. Springs are connected to both the upper and lower sides of the connecting frame, and the other end of the springs is fixedly connected to the connecting hole. Through the connection between the connecting frame and the first stirring rod, if the rod is subjected to resistance from graphite at different heights during rotation, the resistance can be reduced by sliding the connecting frame up and down with the connecting hole.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model can screen graphite with different degrees of dryness by setting a sieve with different mesh size and setting a heating block at the bottom of the sieve, thus better ensuring the drying effect of graphite.

[0020] 2. This utility model uses a crushing roller and a second scraper to crush the graphite that has solidified into lumps, thereby improving the drying efficiency. The second scraper also scrapes up the graphite on the end face of the screening screen, preventing the graphite from being crushed into a flat shape due to moisture and clogging the screening screen, thus improving the practicality of the equipment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the internal three-dimensional structure of the present invention;

[0023] Figure 2 This is a cross-sectional structural diagram of the box body of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the stirring assembly and screen of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the stirring assembly and screen of this utility model from another perspective.

[0026] Figure 5 For the present utility model Figure 3 A schematic diagram of the disassembled three-dimensional structure.

[0027] The components include: 1. housing; 11. feed hopper; 12. discharge hopper; 13. heating wire; 14. motor; 15. rotating shaft;

[0028] 2. Screening mesh;

[0029] 3. Stirring assembly; 31. Rotating ring; 34. Connecting hole; 35. Connecting frame; 36. Spring; 37. Stirring blade; 32. Fixing rod; 33. First stirring rod;

[0030] 4. Second stirring rod;

[0031] 5. Heating block;

[0032] 6. Compactor roller; 61. Limiting ring; 62. Limiting groove; 63. Slider; 64. Snap ring

[0033] 7. First scraper;

[0034] 8. Second scraper; 81. Connecting rod. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0037] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0038] like Figure 1-5 As shown, a high-efficiency precision drying device for graphite production includes a box body 1, with a feed hopper 11 and a discharge hopper 12 respectively provided at the top and bottom of the box body 1. An electric heating wire 13 is embedded in the inner wall of the box body 1 for heating the inner cavity of the box body 1, thereby achieving the drying of graphite in the inner cavity.

[0039] The box 1 is provided with several screening screens 2 from top to bottom, and the screen holes of the screening screens 2 decrease in size from top to bottom; heating blocks 5 are provided at the bottom of the screening screens 2, and the heating blocks 5 are distributed in a cross shape at the bottom of the screening screens 2.

[0040] The top of the housing 1 is equipped with a motor 14, and the housing 1 is equipped with a rotating shaft 15. One end of the rotating shaft 15 is rotatably connected to the bottom of the housing 1, and the other end extends out of the housing 1 and is connected to the motor 14.

[0041] The rotating shaft 15 is provided with several sets of stirring components 3, and the number of stirring components 3 corresponds to the number of screening screens 2 and they are all located above the corresponding screening screens 2.

[0042] The stirring assembly 3 includes a rotating ring 31, which is fixedly connected to the rotating shaft 15 via a fixing rod 32. A first stirring rod 33 is provided on the outer side of the rotating ring 31. The lower end of the first stirring rod 33 is folded and bent towards the axis of the rotating shaft 15.

[0043] Several second stirring rods 4 are provided at the lower end of the rotating shaft 15.

[0044] Graphite is fed from the feed hopper 11 into the uppermost sieve 2 of the box 1. Because the graphite contains moisture, it tends to stick together and does not easily pass through the sieve 2. The motor 14 drives the rotating shaft 15 to rotate, and the first stirring rod 33 stirs the graphite on the sieve 2. The electric heating wire 13 in the inner wall of the box 1 heats the inner cavity of the box 1, and the air temperature rises to dry the graphite. The heating block 5 at the bottom of the sieve 2 dries the graphite on the sieve 2. Graphite that has been dried to a certain extent can pass through the sieve 2 and fall to the bottom. This process is repeated until the graphite powder that has been dried to a qualified level falls to the bottom of the box 1. The second stirring rod 4 further stirs the graphite to prevent uneven drying. Finally, the graphite is discharged through the discharge hopper 12.

[0045] Preferably, each stirring assembly 3 is provided with four first stirring rods 33 and is evenly distributed in a circular array with the axis of the rotating ring 31 as the center.

[0046] Preferably, a first scraper 7 is fixedly connected to the first stirring rod 33. The first scraper 7 is in contact with the inner wall of the box 1. When the rotating shaft 15 drives the stirring assembly 3 to rotate, the first scraper 7 rotates along the inner wall of the box 1 to scrape off the graphite adhering to the inner wall of the box 1, ensuring the cleanliness of the inside of the box 1 after drying.

[0047] Preferably, a roller 6 is provided above the screening screen 2, and the side of the roller 6 is rotatably connected to the bottom of the first stirring rod 33 and the first scraper 7 respectively through a retaining ring 64.

[0048] Preferably, a limiting ring 61 is fixedly provided on the rotating shaft 15, and a limiting groove 62 is provided on the limiting ring 61. A slider 63 is slidably provided in the limiting groove 62. The slider 63 is fixedly connected to the crushing roller 6. When the stirring assembly 3 rotates and stirs, the crushing roller 6 rotates in the retaining ring 64 due to the friction with the screening screen 2. As the stirring assembly 3 rotates, the crushing roller 6 rotates on the screening screen 2 to crush the graphite that has agglomerated into lumps, thereby improving the drying efficiency. One end of the crushing roller 6 slides along the limiting groove 62 through the slider 63 and rotates on its own, thereby improving the stability of the crushing roller 6.

[0049] Preferably, a second scraper 8 is provided on one side of the crushing roller 6, and the bottom of the second scraper 8 abuts against the top of the screen 1; the second scraper 8 is fixedly connected to the side of the first stirring rod 33 and the first scraper 7 through two connecting rods 81 respectively. After the crushing roller 6 breaks up the graphite that has solidified into blocks, the second scraper 8 scrapes up the graphite on the end face of the screen 2, so as to prevent the graphite from being crushed into a flat shape due to moisture and clogging the screen 2.

[0050] Preferably, the lower end of the first stirring rod 33 is provided with several stirring blades 37 on both sides to improve the uniformity of graphite stirring.

[0051] Preferably, the upper end of the first stirring rod 33 has a connecting hole 34, and a connecting frame 35 is fixed on the rotating ring 31. One end of the connecting frame 35 is slidably disposed in the connecting hole 34. Springs 36 are connected to both the upper and lower sides of the connecting frame 35. The other end of the springs 36 is fixedly connected to the connecting hole 34. Through the connection between the connecting frame 35 and the first stirring rod 33, if it encounters resistance from graphite at different heights during rotation, the resistance can be reduced by the up-and-down sliding of the connecting frame 35 and the connecting hole 34.

[0052] The working principle of this utility model is as follows: Graphite is fed from the feed hopper 11 into the uppermost screening screen 2 of the box 1. The heating wire 13 and heating block 5 heat and dry the graphite. The motor 14 drives the rotating shaft 15 to rotate, which in turn drives the rotating ring 31 to rotate via the fixed rod 32. The first stirring rod 33 and stirring blade 37 stir the graphite. During the rotation of the rotating ring 31, the first scraper 7 rotates along the inner wall of the box 1 to scrape off the graphite adhering to the inner wall of the box 1, ensuring the cleanliness of the inside of the box 1 after drying. The crushing roller 6 rotates on the screening screen 2 to crush the graphite that has agglomerated, improving the drying efficiency. The second scraper... Rod 8 scrapes the graphite on the end face of the screening screen 2 to prevent the graphite from being flattened due to moisture and clogging the screening screen 2. The heating block 5 at the bottom of the screening screen 2 dries the graphite closest to the screening screen 2. Graphite that has been dried to a certain extent can fall through the screening screen 2 to the bottom. Graphite with higher moisture content in the upper layer is closer to the screening screen 2. Graphite that has passed through the first screening screen 2 falls onto the second screening screen 2 and is stirred and dried by the stirring component 3. Finally, the qualified graphite powder falls into the bottom of the box 1, where the second stirring rod 4 further stirs it to prevent uneven drying of graphite. Finally, it is discharged through the discharge hopper 12.

[0053] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A high-efficiency precision drying device for graphite production, characterized in that, The box includes a housing, with a feed hopper at the top and a discharge hopper at the bottom, and an electric heating wire embedded in the inner wall of the housing. The box is provided with several screening screens from top to bottom, and the screen holes of the screening screens decrease in size from top to bottom; heating blocks are provided at the bottom of the screening screens, and the heating blocks are distributed in a cross shape at the bottom of the screening screens. The top of the box is equipped with a motor, and the box is equipped with a rotating shaft. One end of the rotating shaft is connected to the bottom of the box, and the other end extends out of the box and is connected to the motor. The rotating shaft is equipped with several sets of stirring components, and the number of stirring components corresponds to the number of screening screens and they are all located above the corresponding screening screens. The stirring assembly includes a rotating ring, which is fixedly connected to a rotating shaft via a fixing rod. A first stirring rod is provided on the outer side of the rotating ring, and the lower end of the first stirring rod is folded and bent toward the axis of the rotating shaft. The lower end of the rotating shaft is provided with several second stirring rods.

2. The high-efficiency precision drying device for graphite production according to claim 1, characterized in that... Each stirring assembly is equipped with four first stirring rods, which are evenly distributed in a circular array with the axis of the rotating ring as the center.

3. The high-efficiency precision drying apparatus for graphite production according to claim 2, characterized in that, A first scraper is fixedly connected to the first stirring rod, and the first scraper is in contact with the inner wall of the box.

4. The high-efficiency precision drying apparatus for graphite production according to claim 3, characterized in that, A roller is provided above the screening screen, and the side of the roller is rotatably connected to the bottom of the first stirring rod and the first scraper respectively by retaining rings.

5. The high-efficiency precision drying apparatus for graphite production according to claim 4, characterized in that, A limiting ring is fixedly provided on the rotating shaft, and a limiting groove is provided on the limiting ring. A slider is slidably provided in the limiting groove, and the slider is fixedly connected to the rolling roller.

6. The high-efficiency precision drying apparatus for graphite production according to claim 5, characterized in that, A second scraper is provided on one side of the rolling roller, and the bottom of the second scraper abuts against the top of the screen; the second scraper is fixedly connected to the side of the first stirring rod and the first scraper through two connecting rods respectively.

7. The high-efficiency precision drying apparatus for graphite production according to claim 1, characterized in that, The first stirring rod has several stirring blades on both sides of its lower end.

8. The high-efficiency precision drying apparatus for graphite production according to any one of claims 1-7, characterized in that, The first stirring rod has a connecting hole at its upper end, and a connecting frame is fixed on the rotating ring. One end of the connecting frame is slidably disposed in the connecting hole, and springs are connected to both the upper and lower sides of the connecting frame. The other end of the spring is fixedly connected to the connecting hole.

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