Conveying device for graphene powder

Abstract

The utility model discloses a graphene powder conveying device which comprises a conveying box, a crushing barrel is arranged on the upper portion of one end of the conveying box, a discharging opening is formed in the lower portion of the other end of the conveying box, and a conveying assembly is arranged in the conveying box; an upper cover is arranged on the upper portion of the crushing barrel, a plurality of feeding channels are formed in the upper cover, a stirring motor is arranged in the middle of the upper cover, a driving shaft of the stirring motor extends into an inner cavity of the crushing barrel and is fixedly connected with a rotating shaft, the rotating shaft is sequentially provided with a first crushing assembly and a second crushing assembly from top to bottom, and a filter screen assembly is arranged in the inner cavity of the crushing barrel; a funnel part is arranged on the lower portion of the crushing barrel, and a fixing disc is arranged at the lower end of the funnel part and fixedly connected with the conveying box. Through the arrangement of the crushing barrel and the double crushing assemblies, caked graphene powder can be effectively crushed, the uniformity and fluidity in the subsequent conveying process are improved, the material conveying speed is increased, and the problem of blockage possibly occurring in the conveying process is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of graphene processing equipment, in particular to a conveying device for graphene powder. BACKGROUND

[0002] There are many types of automatic powder feeders used at home and abroad, including: scraping suction type, scraper type, spiral type, drum type, capillary tube type, pneumatic type, etc. Powder science research shows that particles larger than 100 μm are difficult to produce inter-particle interaction, showing good flowability; while powder smaller than 100 μm has a large surface area, and is prone to inter-particle interaction, showing poor flowability. The reason for the poor flowability of fine powder is that the adhesion between adjacent particles is strong, and the adhesion between the powder particles and the wall is also strong; at the same time, the adhesion of fine powder will show the condensation phenomenon between particles, and the adhesion and condensation are collectively referred to as cohesiveness, and the reasons for the cohesiveness of powder include: ① Van der Waals force, electrostatic force in dry state; ② Bridge and capillary action in hygroscopic state; ③ Small density; ④ Large surface roughness, etc. At present, the conventional powder feeder is good for feeding powder coarser than 150 mesh (106 μm); for fine powder with particle size below 200 mesh (75 μm), due to strong cohesiveness, it has poor flowability or even no flowability, and is prone to blockage in the powder hopper, even if a stirring rod is used, it is also difficult to achieve satisfactory powder feeding effect.

[0003] Therefore, the present application provides a conveying device for graphene powder, which aims to avoid the agglomeration and blockage of graphene powder during conveying, and improve the conveying efficiency of graphene powder. SUMMARY

[0004] The utility model provides a conveying device for graphene powder, which aims to solve the problems pointed out in the above background.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A conveying device for graphene powder, comprising: a conveying box, one end of the conveying box is provided with a crushing barrel on the upper part, and the other end is provided with a discharge port on the lower part, the inside of the conveying box is provided with a conveying assembly for conveying material, and the inner cavity of the crushing barrel is in communication with the inner cavity of the conveying box;

[0007] The upper part of the crushing barrel is provided with an upper cover, a plurality of feeding channels are arranged on the upper cover, a stirring motor is arranged in the middle part of the upper cover, the driving shaft of the stirring motor extends into the inner cavity of the crushing barrel and is fixedly connected with a rotating shaft, the rotating shaft is sequentially provided with a first crushing assembly and a second crushing assembly from top to bottom; the inner cavity of the crushing barrel is provided with a filter screen assembly;

[0008] The lower part of the crushing barrel is provided with a funnel part, and the lower end of the funnel part is provided with a fixed disc which is fixedly connected with the conveying box.

[0009] Further, the first crushing assembly comprises a first sleeve fixedly connected with the rotating shaft, a plurality of groups of first crushing rods are horizontally and spacedly arranged on the circumferential side wall of the first sleeve, the number of each group of first crushing rods is four, and the first crushing rods are uniformly distributed on the circumferential side wall of the first sleeve, a plurality of groups of second crushing rods are vertically arranged on the circumferential side wall of each first crushing rod, the number of each group of second crushing rods is four, and the second crushing rods are uniformly distributed on the circumferential side wall of the first crushing rod.

[0010] Further, the second crushing assembly comprises a second sleeve fixedly connected with the rotating shaft, and a spiral blade is arranged on the circumferential side wall of the second sleeve.

[0011] Further, the filter screen assembly comprises a conical filter screen, the outer edge of the conical filter screen is fixedly connected with the inner cavity side wall of the crushing barrel, the lower end of the conical filter screen is provided with a cylindrical filter screen, the cylindrical filter screen is matched with the spiral blade, the lower end of the cylindrical filter screen is provided with a supporting ring, the outer edge of the supporting ring is fixedly connected with the inner cavity side wall of the crushing barrel, and a plurality of hollow parts are arranged in the supporting ring.

[0012] Further, the conveying assembly comprises two rotating rollers rotatably arranged in the inner cavity of the conveying box, a conveying belt is matched arranged on the two rotating rollers, and one rotating roller is matched with an external driving motor.

[0013] Further, the upper side wall of the conveying box is provided with a feeding port matched with the crushing barrel, the lower part of the feeding port is provided with a first guide plate, and the first guide plate is used for guiding the material output by the feeding port to the conveying belt.

[0014] Further, the outer surface of the conveying belt is provided with a material conveying groove, and the two vertical long side walls in the inner cavity of the conveying box are respectively provided with a second guide plate matched with the material conveying groove.

[0015] Further, the feeding channel is matched with a sealing cover.

[0016] Further, the lower part of the conveying box is provided with supporting legs at four corners.

[0017] Compared with the prior art, the utility model has the following technical effects:

[0018] 1. The graphene powder conveying device of this utility model can effectively break up agglomerated graphene powder by setting up a crushing barrel and a double crushing component, which improves the uniformity and flowability of the subsequent conveying process. This not only speeds up the material conveying speed, but also reduces the blockage problem that may occur during the conveying process. The design of the filter component can further ensure the uniformity of the material particles after crushing, and guide the large clumps of material that have not been crushed to the second crushing component, thereby improving the reliability of material crushing.

[0019] 2. The graphene powder conveying device described in this utility model can accelerate the passage of powdered materials by setting up a filter screen assembly, so that the crushing assembly can concentrate on crushing large clumps of materials, thereby increasing the material conveying speed. Attached Figure Description

[0020] Figure 1 This is an overall schematic diagram of a conveying device for graphene powder according to the present invention.

[0021] Figure 2 This is a schematic diagram of the first and second crushing components of a conveying device for graphene powder according to the present invention.

[0022] Figure 3 This is a schematic diagram of a support ring for a graphene powder conveying device according to the present invention.

[0023] Figure 4 This is a schematic diagram of a conveying component of a conveying device for graphene powder according to the present invention;

[0024] Figure 5 This is a schematic diagram of the cooperation between the conveyor belt and the second guide plate of the conveying device for graphene powder according to the present invention.

[0025] In the picture:

[0026] 1. Conveyor box; 101. Discharge port; 102. First guide plate; 103. Second guide plate;

[0027] 2. Crushing barrel; 201. Funnel section; 202. Fixing plate; 203. Reinforcing plate;

[0028] 3. Top cover; 4. Feed channel; 401. Sealing cover;

[0029] 5. Agitator motor; 6. Rotating shaft;

[0030] 7. First crushing assembly; 701. First sleeve; 702. First crushing rod; 703. Second crushing rod;

[0031] 8. Second crushing component; 801. Second sleeve; 802. Spiral blades;

[0032] 9. Filter assembly; 901. Conical filter; 902. Cylindrical filter; 903. Support ring;

[0033] 10. Supporting leg;

[0034] 11. Conveying assembly; 1101. Rotating roller; 1102. Conveyor belt;

[0035] 12. Scraper assembly. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments of this application and the accompanying drawings.

[0037] like Figure 1 As shown, a conveying device for graphene powder includes: a conveying box 1, a crushing barrel 2 is provided at the upper part of one end of the conveying box 1, and a discharge port 101 is provided at the lower part of the other end. The conveying box 1 is provided with a conveying assembly 11 for conveying materials. The inner cavity of the crushing barrel 2 is connected to the inner cavity of the conveying box 1.

[0038] The upper part of the crushing barrel 2 is provided with a top cover 3, and the top cover 3 is provided with several feeding channels 4. The middle part of the top cover 3 is provided with a stirring motor 5. The drive shaft of the stirring motor 5 extends into the inner cavity of the crushing barrel 2 and is fixedly connected to a rotating shaft 6. The rotating shaft 6 is provided with a first crushing component 7 and a second crushing component 8 from top to bottom. The inner cavity of the crushing barrel 2 is provided with a filter screen assembly 9.

[0039] The lower part of the crushing barrel 2 is provided with a funnel part 201, and the lower end of the funnel part 201 is provided with a fixing plate 202, which is fixedly connected to the conveying box 1.

[0040] By setting up the crushing barrel 2 and the dual crushing components, the agglomerated graphene powder can be effectively crushed into fine powder particles, improving the uniformity and flowability of the subsequent conveying process. This not only speeds up the material conveying speed but also reduces potential blockage problems during conveying. The design of the filter assembly 9 further ensures the uniformity of the crushed material particles and guides any large clumps of material that have not been crushed to the second crushing assembly 8, improving the reliability of material crushing. The filter assembly 9 also accelerates the passage of powdery materials, allowing the crushing assembly 9 to concentrate on crushing large clumps of material, thereby increasing the material conveying speed. Furthermore, several reinforcing plates 203 are provided between the fixed plate 202 and the funnel section 201, thereby improving the support capacity of the fixed plate 202 for the entire crushing barrel 2.

[0041] like Figure 2As shown, the first crushing component 7 includes: a first sleeve 701 fixedly connected to the rotating shaft 6; a plurality of first crushing rods 702 are horizontally spaced on the circumferential sidewall of the first sleeve 701, each group of first crushing rods 702 having four rods, which are evenly distributed on the circumferential sidewall of the first sleeve 701; and a plurality of second crushing rods 703 are vertically arranged on the circumferential sidewall of each first crushing rod 702, each group of second crushing rods 703 having four rods, which are evenly distributed on the circumferential sidewall of the first crushing rods 702.

[0042] The first crushing component, through its multi-layered crushing structure, including first crushing rods 702 and second crushing rods 703, enables multi-level crushing of materials within a relatively small space. Four second crushing rods 703, evenly distributed on the circumferential sidewall of each first crushing rod 702, form a dense crushing zone, effectively improving the crushing efficiency of agglomerated graphene powder. Due to the large number and even distribution of the first and second crushing rods 702 and 703, the material can fully contact the crushing component during the crushing process, reducing the amount of material residue in the crushing drum. This not only improves material processing efficiency but also reduces clogging problems caused by residual material.

[0043] like Figure 2 As shown, the second crushing component 8 includes a second sleeve 801 fixedly connected to the rotating shaft 6, and a spiral blade 802 is provided on the circumferential side wall of the second sleeve 801.

[0044] The spiral blades 802 in the second crushing component 8 can agitate and propel the material, helping to convey it to the lower conveying box 1 and improving crushing and conveying efficiency. At the same time, the rotation of the spiral blades can further crush the material, especially for materials that have already been initially crushed by the first crushing component 7. The spiral blades 802 can further compress and crush the material to ensure that there are no agglomerated materials.

[0045] like Figures 2-3 As shown, the filter assembly 9 includes: a conical filter 901, the outer edge of which is fixedly connected to the inner cavity sidewall of the crushing barrel 2; a cylindrical filter 902 is provided at the lower end of the conical filter 901, which cooperates with the spiral blade 802; a support ring 903 is provided at the lower end of the cylindrical filter 902, the outer edge of which is fixedly connected to the inner cavity sidewall of the crushing barrel 2, and has several hollowed-out parts inside.

[0046] The conical filter screen 901 effectively utilizes gravity to guide large clumps of material into the cylindrical filter screen 902. Meanwhile, dispersed powder materials can pass directly into the conveyor box 1 below, avoiding repeated crushing and fully utilizing the internal space of the crushing barrel 2 to improve material conveying efficiency. The support ring 903 enhances the fixing strength of the filter assembly 9 and ensures smooth material passage.

[0047] like Figure 4 As shown, the conveying assembly 11 includes: two rotating rollers 1101 rotatably disposed in the inner cavity of the conveying box 1, a conveyor belt 1102 being disposed on the two rotating rollers 1101, and one rotating roller 1101 cooperating with an external drive motor.

[0048] like Figure 4 As shown, the upper side wall of the conveyor box 1 has a feed inlet that cooperates with the crushing barrel 2. A first guide plate 102 is provided at the lower part of the feed inlet. The first guide plate 102 is used to guide the material output from the feed inlet to the conveyor belt 1102. The first guide plate 102 can reduce the dust phenomenon caused by the falling material, thereby reducing the loss during the powder conveying process.

[0049] like Figures 4-5 As shown, a material conveying trough is formed on the outer surface of the conveyor belt 1102, and second guide plates 103 are respectively provided on the two vertical long side walls of the inner cavity of the conveyor box 1. The second guide plates 103 cooperate with the material conveying trough. The material conveying trough can further ensure that the material will not fall off the conveyor belt 1102 during the conveying process. The second guide plates 103 can guide some material back onto the conveyor belt after it is lifted, thereby reducing the loss of material during the conveying process.

[0050] like Figure 1 As shown, the feeding channel 4 is equipped with a sealing cover 401. With the sealing cover 401, the operator can flexibly select the feeding channel 4 to use, while the other feeding channels 4 can remain sealed to prevent leakage of powdery materials and avoid affecting the working environment.

[0051] like Figure 1 As shown, the lower four corners of the conveyor box 1 are provided with support legs 10.

[0052] like Figure 1 As shown, a scraper assembly 12 is provided at the discharge port 101. The scraper assembly 12 can scrape off the residual material on the conveyor belt 1102, thereby reducing material conveying loss.

[0053] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A conveying device for graphene powder, characterized in that, include: A conveying box (1) is provided with a crushing barrel (2) at the upper part of one end and a discharge port (101) at the lower part of the other end. A conveying assembly (11) for conveying materials is provided inside the conveying box (1). The inner cavity of the crushing barrel (2) is connected to the inner cavity of the conveying box (1). The upper part of the crushing barrel (2) is provided with a cover (3), and the cover (3) is provided with several feeding channels (4). The middle part of the cover (3) is provided with a stirring motor (5). The drive shaft of the stirring motor (5) extends into the inner cavity of the crushing barrel (2) and is fixedly connected to a rotating shaft (6). The rotating shaft (6) is provided with a first crushing component (7) and a second crushing component (8) from top to bottom. The inner cavity of the crushing barrel (2) is provided with a filter screen assembly (9). The lower part of the crushing barrel (2) is provided with a funnel part (201), and the lower end of the funnel part (201) is provided with a fixing plate (202), which is fixedly connected to the conveying box (1). The second crushing component (8) includes: a second sleeve (801) fixedly connected to the rotating shaft (6), and a spiral blade (802) is provided on the circumferential side wall of the second sleeve (801); The filter assembly (9) includes: a conical filter (901), the outer edge of which is fixedly connected to the inner cavity sidewall of the crushing barrel (2), and a cylindrical filter (902) provided at the lower end of the conical filter (901), which cooperates with the spiral blade (802); a support ring (903) provided at the lower end of the cylindrical filter (902), the outer edge of which is fixedly connected to the inner cavity sidewall of the crushing barrel (2), and has several hollow parts inside.

2. The conveying device for graphene powder according to claim 1, characterized in that, The first crushing component (7) includes: a first sleeve (701) fixedly connected to the rotating shaft (6), a plurality of first crushing rods (702) are horizontally spaced on the circumferential sidewall of the first sleeve (701), each group of first crushing rods (702) has four rods, and they are evenly distributed on the circumferential sidewall of the first sleeve (701), and a plurality of second crushing rods (703) are vertically arranged on the circumferential sidewall of each first crushing rod (702), each group of second crushing rods (703) has four rods, and they are evenly distributed on the circumferential sidewall of the first crushing rod (702).

3. The conveying device for graphene powder according to claim 1, characterized in that, The conveying assembly (11) includes: two rotating rollers (1101) rotatably disposed in the inner cavity of the conveying box (1), a conveyor belt (1102) is provided on the two rotating rollers (1101), and one rotating roller (1101) is connected to an external drive motor.

4. The conveying device for graphene powder according to claim 3, characterized in that, The upper side wall of the conveyor box (1) is provided with a feed inlet that cooperates with the crushing barrel (2). A first guide plate (102) is provided at the lower part of the feed inlet. The first guide plate (102) is used to guide the material output from the feed inlet to the conveyor belt (1102).

5. A conveying device for graphene powder according to claim 3, characterized in that, The outer surface of the conveyor belt (1102) is provided with a material conveying trough, and the two vertical long side walls of the inner cavity of the conveyor box (1) are respectively provided with a second guide plate (103), which cooperates with the material conveying trough.

6. A conveying device for graphene powder according to claim 1, characterized in that, The feed channel (4) is equipped with a sealing cover (401).

7. A conveying device for graphene powder according to claim 1, characterized in that, The lower four corners of the conveyor box (1) are provided with support legs (10).

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