A drum screen for graphite powder pretreatment

Abstract

The utility model relates to graphite powder impurity removal technical field discloses a kind of roller screen for graphite powder pretreatment, including bearing plate, the upper end middle part of bearing plate is fixedly connected with first support column, the upper end fixed connection of first support column is stand, the upper end rotationally connected of stand has first rotating shaft, the upper end fixed connection of first rotating shaft has outer tube, the front end middle part of outer tube is fixedly connected with support plate, the upper end fixed connection of support plate has rotary motor, the inside front and back ends of outer tube are both provided with rotation groove, the inside sliding connection of rotation groove has first sliding block.In the utility model, by the design of up-and-down swing, the graphite powder that enters sieve barrel can be evenly loose and spread, effectively prevent material accumulation, sieve powder is completed by falling into collecting box through feed pipe, which can effectively prevent lightweight powder dust loss, by designing collision device, ensure that sieve barrel discharging is stable and not easy to block, improve sieve powder efficiency.

Description

Technical Field

[0001] This utility model relates to the field of graphite powder impurity removal technology, and in particular to a drum screen for graphite powder pretreatment. Background Technology

[0002] The trommel screen for graphite powder pretreatment is a core screening device in the deep processing of graphite. Based on the principle of drum rotation, it uses screens with different apertures fixed on the inner wall of the drum to classify and purify the pre-processed graphite powder. It can efficiently separate large particle impurities, insufficiently ground coarse-grained graphite, and external mechanical impurities from the powder. It is widely used in the production of high-end graphite products such as lithium battery anode materials, conductive coatings, and sealing materials.

[0003] Currently, this type of drum screen has significant technical drawbacks in practical applications: the fine particle size and large specific surface area of ​​graphite powder make it easy to adsorb and agglomerate, leading to screen blockage. This not only reduces screening efficiency but also requires frequent shutdowns for cleaning, affecting production continuity and making it difficult to meet the high-efficiency, precise, and low-consumption production needs of the modern graphite processing industry. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drum screen for graphite powder pretreatment. Through its up-and-down swinging design, the graphite powder entering the screen drum is evenly and loosely spread out, effectively preventing material accumulation.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A rotary drum screen for graphite powder pretreatment includes a support plate, a first support column fixedly connected to the upper middle part of the support plate, a column fixedly connected to the upper end of the first support column, a first rotating shaft rotatably connected to the upper end of the column, an outer cylinder fixedly connected to the upper end of the first rotating shaft, a support plate fixedly connected to the front middle part of the outer cylinder, a rotary motor fixedly connected to the upper end of the support plate, rotating grooves opened at both the front and rear ends of the inner side of the outer cylinder, a first slider slidably connected inside the rotating groove, a screen barrel fixedly connected to the inner side of the first slider, a support rod fixedly connected to the upper end of the first slider, multiple sets of stops provided on the outer side of the support rod, a striking rod rotatably connected between each set of stops on the outer side of the support rod, a hammer fixedly connected to the end of the striking rod, a lever provided on the outer side of the screen barrel, a drive end of the rotary motor penetrating the outer cylinder and fixedly connected to the rear end of the screen barrel, a stirring rod fixedly connected inside the screen barrel, and a material receiving assembly provided on the upper rear side of the support plate.

[0007] Furthermore, the material collection component includes a chute opened on the rear side of the upper end of the support plate, a second slider is movably connected inside the chute, a collection box is fixedly connected to the opposite side of the second slider, a second handle is fixedly connected to the front and rear sides of the collection box, and a second support column is fixedly connected to the left and right sides of the upper end of the support plate, and a feed pipe is fixedly connected to the opposite side of the second support column.

[0008] Furthermore, a fixing rod is fixedly connected to the lower outer side of the column, and a first gear is rotatably connected to the rear end of the fixing rod.

[0009] Furthermore, a rotating rod is rotatably connected to the rear end of the first gear, and a second rotating shaft is rotatably connected to the upper end of the rotating rod. The upper end of the second rotating shaft is fixedly connected to the lower side of the outer cylinder.

[0010] Furthermore, a second vertical plate is fixedly connected to the upper end of the bearing plate at the rear side of the first support column, a drive motor is fixedly connected to the front end of the second vertical plate, a second gear is fixedly connected to the drive end of the drive motor, and the outer side of the second gear is meshed with the outer side of the first gear.

[0011] Furthermore, a first vertical plate is fixedly connected to the upper front side of the bearing plate, a controller is fixedly connected to the middle of the front end of the first vertical plate, a first handle is fixedly connected to the lower front end of the first vertical plate, a crossbar is fixedly connected to the middle of the rear end of the first vertical plate, and the rear end of the crossbar is fixedly connected to the outside of the column.

[0012] Furthermore, pulleys are fixedly connected around the lower end of the bearing plate, a lead screw is fixedly connected to the middle of the lower end of the bearing plate, and an electrostatic wire is fixedly connected to the lower end of the lead screw.

[0013] Furthermore, a waste outlet is provided at the lower rear end of the outer cylinder, a conveying pipe is fixedly connected to the upper rear end of the outer cylinder, a conveying port is fixedly connected to the upper end of the conveying pipe, and a discharge outlet is provided at the lower rear end of the outer cylinder.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the up-and-down swinging design allows the graphite powder entering the sieve barrel to be evenly and loosely spread out, effectively preventing material accumulation. The stirring rod set inside the sieve barrel can accelerate the dispersion of graphite powder, significantly improving the screening efficiency and screening rate, while also improving the convenience of collection.

[0016] 2. In this utility model, after the powder is sieved, it falls into the collection box through the feed pipe, which can effectively prevent the loss of light powder by dust. The collision device is designed to ensure stable material feeding from the sieve barrel and prevent clogging. An electrostatic discharge device is set at the bottom of the equipment to reduce the electrostatic adsorption of graphite powder and improve the sieve efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a rotary drum screen for graphite powder pretreatment proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the chute of a rotary screen for graphite powder pretreatment proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the fixing rod of a drum screen for graphite powder pretreatment proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the stirring rod of a drum screen for graphite powder pretreatment proposed in this utility model.

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0022] Figure 6 This is a schematic diagram of the second gear of a drum screen for graphite powder pretreatment proposed in this utility model.

[0023] Figure 7 This is a schematic diagram of the hammer of a drum screen for graphite powder pretreatment proposed in this utility model.

[0024] Legend:

[0025] 1. Bearing plate; 2. Collection box; 3. Second gear; 4. Second vertical plate; 5. Second support column; 6. Feed pipe; 7. Conveying pipe; 8. Conveying port; 9. Outer cylinder; 10. Rotary motor; 11. Support plate; 12. First vertical plate; 13. First handle; 14. Pulley; 15. First support column; 16. Drive motor; 17. Second handle; 18. First gear; 19. Slide groove; 20. Lead screw; 21. Electrostatic wire; 22. Crossbar; 23. Column; 24. First rotating shaft; 25. Pulley; 26. Waste outlet; 27. Stirring rod; 28. First slider; 29. ​​Stop block; 30. Support rod; 31. Screen barrel; 32. Striking rod; 33. Hammer; 34. Second slider; 35. Rotary groove; 36. Second rotating shaft; 37. Rotating rod; 38. Fixing rod; 39. Discharge port; 40. Controller. Detailed Implementation

[0026] 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.

[0027] Reference Figures 1-3 This utility model provides an embodiment of a rotary screen for graphite powder pretreatment, comprising a support plate 1, a first support column 15 fixedly connected to the upper middle part of the support plate 1, a column 23 fixedly connected to the upper end of the first support column 15, a first rotating shaft 24 rotatably connected to the upper end of the column 23, an outer cylinder 9 fixedly connected to the upper end of the first rotating shaft 24, a support plate 11 fixedly connected to the front middle part of the outer cylinder 9, a rotary motor 10 fixedly connected to the upper end of the support plate 11, a waste port 26 provided at the lower rear end of the outer cylinder 9, a conveying pipe 7 fixedly connected to the upper rear end of the outer cylinder 9, a conveying port 8 fixedly connected to the upper end of the conveying pipe 7, and a discharge port provided at the lower rear end of the outer cylinder 9. 39. Rotary grooves 35 are provided at both the front and rear ends of the outer cylinder 9. A first slider 28 is slidably connected inside the rotary groove 35. A screen barrel 31 is fixedly connected to the inner side of the first slider 28. A support rod 30 is fixedly connected to the upper end of the first slider 28. Multiple sets of stops 29 are provided on the outer side of the support rod 30. A striking rod 32 is rotatably connected between each set of stops 29 on the outer side of the support rod 30. A hammer 33 is fixedly connected to the end of the striking rod 32. A lever 25 is provided on the outer side of the screen barrel 31. The drive end of the rotary motor 10 passes through the outer cylinder 9 and is fixedly connected to the rear end of the screen barrel 31. A stirring rod 27 is fixedly connected inside the screen barrel 31. A material receiving assembly is provided on the upper rear side of the bearing plate 1.

[0028] First, the material is fed into the screen barrel 31 through the feed inlet 8 and the feed pipe 7. After the material is spread inside the screen barrel 31, the rotary motor 10 located at the rear end of the outer cylinder 9 is started. The screen barrel 31 will then rotate slowly. During rotation, the fine powder will be lifted to a certain height by the stirring rod 27 located inside the screen barrel 31 and fall onto the inner wall of the screen barrel 31 under gravity. This achieves the effect of stirring the material and accelerating the screening. Repeating this operation will screen out the fine powder. The screened fine powder enters the interlayer between the outer cylinder 9 and the screen barrel 31 through the micropores on the surface of the screen barrel 31. To prevent large pieces of material from clogging the micropores on the surface of the screen barrel 31, a support rod 30 is located on the upper side of the first slider 28. An impact rod 32 is rotatably connected to the outside of the support rod 30, and an impact point is provided at the end of the impact rod 32. During the rotation of the screen barrel 31, the lever 25 located on the outside of the screen barrel 31 pushes the hammer 33, causing the hammer 33 to swing outward. When the lever 25 passes the hammer 33, the hammer 33 quickly returns to its original position and strikes the outside of the screen barrel 31, thereby achieving the effect of striking the screen barrel 31 to dislodge blockages and prevent clogging. After screening is completed, the outer cylinder 9 and the screen barrel 31 are tilted downward at a certain angle, so that the fine powder in the interlayer moves to the rear end of the outer cylinder 9 under the action of gravity. At this time, the discharge port 39 located on the lower side of the bottom of the outer cylinder 9 is opened, and the fine powder will be discharged through the discharge port 39. If impurities inside the screen barrel 31 need to be removed, the discharge port 39 needs to be closed and the waste port 26 needs to be opened. At this time, the impurities inside the screen barrel 31 will be discharged through the waste port 26, and the overall screening work is completed.

[0029] Reference Figures 1-3The material collection component includes a chute 19 opened on the rear side of the upper end of the support plate 1. A second slider 34 is movably connected inside the chute 19. A collection box 2 is fixedly connected to the opposite side of the second slider 34. A second handle 17 is fixedly connected to the front and rear sides of the collection box 2. A second support column 5 is fixedly connected to the left and right sides of the upper end of the support plate 1. A feed pipe 6 is fixedly connected to the opposite side of the second support column 5. A fixing rod 38 is fixedly connected to the lower outer part of the column 23. A first gear 18 is rotatably connected to the rear end of the fixing rod 38. A rotating rod 37 is rotatably connected to the rear end of the first gear 18. A second rotating shaft 36 is rotatably connected to the upper end of the rotating rod 37. The upper end of the second rotating shaft 36 is fixedly connected to the lower side of the outer cylinder 9. The upper end of the support plate 1 is located at the first support. A second vertical plate 4 is fixedly connected to the rear side of column 15. A drive motor 16 is fixedly connected to the front end of the second vertical plate 4. A second gear 3 is fixedly connected to the drive end of the drive motor 16. The outer side of the second gear 3 is meshed with the outer side of the first gear 18. A first vertical plate 12 is fixedly connected to the front side of the upper end of the bearing plate 1. A controller 40 is fixedly connected to the middle of the front end of the first vertical plate 12. A first handle 13 is fixedly connected to the lower side of the front end of the first vertical plate 12. A crossbar 22 is fixedly connected to the middle of the rear end of the first vertical plate 12. The rear end of the crossbar 22 is fixedly connected to the outer side of the column 23. Pulleys 14 are fixedly connected around the lower end of the bearing plate 1. A lead screw 20 is fixedly connected to the middle of the lower end of the bearing plate 1. An electrostatic wire 21 is fixedly connected to the lower end of the lead screw 20.

[0030] First, push the equipment with the first handle 13, and move it to the corresponding work area via the pulley 14 located at the bottom of the support plate 1. After the material is put into the tank, start the drive motor 16. At this time, the tank will slowly swing up and down, so that the material is distributed in the tank. After the screening is completed, the collection work will begin. In order to prevent fine powder from being attracted to the inside of the tank due to static electricity, a lead screw 20 is fixedly connected to the lower end of the support plate 1. An electrostatic wire 21 is set at the lower end of the lead screw 20. Both the lead screw 20 and the electrostatic wire 21 are made of metal. At this time, the static electricity generated in the tank will be conducted to the ground through the electrostatic wire 21 to achieve the effect of eliminating static electricity. The screened fine powder will enter the collection box 2 downward through the feed pipe 6. At this time, pull the second handle 17 to move the collection box 2 outward. The second slider 34 located on the lower left and right sides of the collection box 2 will slide outward along the slide groove 19. At this time, the collection work is completed.

[0031] Working principle: First, the device is pushed by the first handle 13 and moved to the corresponding work area via the pulley 14 located at the bottom of the support plate 1. Then, the material enters the screen barrel 31 through the feed port 8 and the feed pipe 7. Next, the drive motor 16 is started, and the tank body slowly swings up and down to evenly distribute the material inside the screen barrel 31. After the tank body is returned to a horizontal state, the drive motor 16 is turned off. At this time, the rotary motor 10 located at the rear end of the outer cylinder 9 is started, and the screen barrel 31 will slowly rotate. During the rotation, the fine powder will enter the clamp between the outer cylinder 9 and the screen barrel 31 through the micropores on the surface of the screen barrel 31. Once the screening is complete, restart the drive motor 16 located at the front end of the second vertical plate 4. Tilt the outer cylinder 9 and the screen barrel 31 downwards at a certain angle so that the fine powder in the interlayer moves to the rear end of the outer cylinder 9 under the action of gravity. At this time, open the discharge port 39 located at the bottom side of the outer cylinder 9. The fine powder will enter the collection box 2 downwards through the feed pipe 6. At this time, pull the second handle 17 to move the collection box 2 outwards to complete the collection work. Next, close the discharge port 39. If it is necessary to remove impurities, the waste port 26 needs to be opened. At this time, the impurities inside the screen barrel 31 will be discharged through the waste port 26, and the overall screening work is completed.

[0032] It is worth noting that the protection and controllers involved in the above embodiments all adopt corresponding existing technologies according to the actual situation, so they will not be described in detail in the embodiments of this application.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary drum screen for pretreatment of graphite powder, characterized in that, Includes a bearing plate (1), a first support column (15) fixedly connected to the upper middle part of the bearing plate (1), a column (23) fixedly connected to the upper end of the first support column (15), a first rotating shaft (24) rotatably connected to the upper end of the column (23), an outer cylinder (9) fixedly connected to the upper end of the first rotating shaft (24), a support plate (11) fixedly connected to the middle of the front end of the outer cylinder (9), a rotary motor (10) fixedly connected to the upper end of the support plate (11), and rotating grooves (35) opened at both the front and rear ends of the inner cavity of the outer cylinder (9). A first slider (28) is slidably connected inside the rotating groove (35). A screen barrel (31) is fixedly connected to the inner side. A support rod (30) is fixedly connected to the upper end of the first slider (28). Multiple sets of blocks (29) are provided on the outer side of the support rod (30). A striking rod (32) is rotatably connected between each set of blocks (29) on the outer side of the support rod (30). A hammer (33) is fixedly connected to the end of the striking rod (32). A lever (25) is provided on the outer side of the screen barrel (31). The drive end of the rotary motor (10) passes through the outer cylinder (9) and is fixedly connected to the rear end of the screen barrel (31). A stirring rod (27) is fixedly connected inside the screen barrel (31). A material receiving assembly is provided on the upper rear side of the bearing plate (1).

2. The drum screen for graphite powder pretreatment according to claim 1, characterized in that: The material receiving assembly includes a slide groove (19) opened on the rear side of the upper end of the support plate (1). A second slider (34) is movably connected inside the slide groove (19). A collection box (2) is fixedly connected to the opposite side of the second slider (34). A second handle (17) is fixedly connected to the front and rear sides of the collection box (2). A second support column (5) is fixedly connected to the left and right sides of the upper end of the support plate (1). A feed pipe (6) is fixedly connected to the opposite side of the second support column (5).

3. The drum screen for graphite powder pretreatment according to claim 1, characterized in that: A fixing rod (38) is fixedly connected to the lower outer side of the column (23), and a first gear (18) is rotatably connected to the rear end of the fixing rod (38).

4. A drum screen for graphite powder pretreatment according to claim 3, characterized in that: The rear end of the first gear (18) is rotatably connected to a rotating rod (37), and the upper end of the rotating rod (37) is rotatably connected to a second rotating shaft (36). The upper end of the second rotating shaft (36) is fixedly connected to the lower side of the outer cylinder (9).

5. A drum screen for graphite powder pretreatment according to claim 1, characterized in that: The upper end of the bearing plate (1) is fixedly connected to the rear side of the first support column (15) with a second vertical plate (4). The front end of the second vertical plate (4) is fixedly connected to a drive motor (16). The drive end of the drive motor (16) is fixedly connected to a second gear (3). The outer side of the second gear (3) is meshed with the outer side of the first gear (18).

6. The drum screen for graphite powder pretreatment according to claim 1, characterized in that: The upper front side of the bearing plate (1) is fixedly connected to a first vertical plate (12), the front middle of the first vertical plate (12) is fixedly connected to a controller (40), the lower front side of the first vertical plate (12) is fixedly connected to a first handle (13), the middle rear end of the first vertical plate (12) is fixedly connected to a crossbar (22), and the rear end of the crossbar (22) is fixedly connected to the outside of the column (23).

7. A drum screen for graphite powder pretreatment according to claim 6, characterized in that: The lower end of the bearing plate (1) is fixedly connected with pulleys (14), the lower end of the bearing plate (1) is fixedly connected with a lead screw (20), and the lower end of the lead screw (20) is fixedly connected with an electrostatic wire (21).

8. A drum screen for graphite powder pretreatment according to claim 1, characterized in that: The lower rear end of the outer cylinder (9) is provided with a waste port (26), the upper rear end of the outer cylinder (9) is fixedly connected with a conveying pipe (7), the upper end of the conveying pipe (7) is fixedly connected with a conveying port (8), and the lower rear end of the outer cylinder (9) is provided with a discharge port (39).

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