Carbon nanotube powder conveying device

Abstract

The invention discloses a carbon nano tube powder conveying device, and relates to the technical field of powder conveying devices.The conveying device comprises an impeller feeder, the impeller feeder comprises a feeder body and a transmission discharging assembly, the feeder body comprises an impeller shell, a second limiting groove is formed in the impeller shell, and the transmission discharging assembly is arranged in the second limiting groove; the transmission discharging assembly comprises an impeller, an elastic piece, a material pushing plate embedded in the impeller and limiting shafts arranged at the two ends of the material pushing plate, a sliding groove is formed in the impeller, the limiting shafts are embedded in the second limiting grooves, when the material pushing plate rotates to the top end, materials fall onto the material pushing plate, and when the material pushing plate rotates to the bottom end, the materials fall onto the material pushing plate. And when the materials fall down, the material pushing plate pops up under the action of the elastic piece, and the materials are discharged. According to the carbon nano tube powder conveying device, materials at the included angle of the impeller are pushed out through the movable material pushing plate, and agglomeration and adhesion are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of powder conveying devices, and in particular to a carbon nanotube powder conveying device. Background Art

[0002] Carbon nanotubes (CNTs) are carbon nanomaterials with a unique one-dimensional tubular structure. They possess excellent properties such as high strength, electrical conductivity, and thermal conductivity, and have broad application prospects in electronics, energy, and materials. In the preparation of conductive pastes using CNT powder as raw material, the dispersion of the CNT powder plays a crucial role in the performance of the final product.

[0003] However, in actual production and application, carbon nanotube powders are prone to agglomeration during transportation. This is primarily due to the large specific surface area of ​​carbon nanotubes, their surface inertness, and the strong van der Waals forces between molecules. This causes the carbon nanotube powders to agglomerate or entangle with each other in the hopper, making it difficult to evenly disperse into the material. During the feeding and transportation process of the impeller feeder, powder adhesion is prone to occur at the impeller angle. This agglomeration not only affects the flowability of the carbon nanotube powder, resulting in poor transportation, but also reduces its performance in the final product, such as conductivity and mechanical properties.

[0004] Secondly, after the powder agglomerates, it will form larger agglomerates. When these agglomerates move in the conveying pipeline, they will not only increase the wear of the pipeline, but also easily block the pipeline, causing transportation interruption and seriously affecting the continuity and stability of production.

[0005] In view of the above problems, the present invention provides a carbon nanotube powder conveying device to solve the deficiencies in the prior art. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a carbon nanotube powder conveying device, which can push out the material at the angle of the impeller by setting a movable push plate to avoid agglomeration and adhesion. The technical solution adopted by the present invention to solve its technical problems is: the present invention provides a carbon nanotube powder conveying device, the conveying device includes an impeller feeder, the impeller feeder includes a feeder and a transmission discharge assembly, the feeder includes an impeller shell, a second limit groove is provided on the impeller shell, the transmission discharge assembly includes an impeller, an elastic member, a push plate embedded in the impeller and a limit shaft provided at both ends of the push plate, a slide groove is provided on the impeller, and the limit shaft is embedded in the second limit groove, when the push plate rotates to the top end, the material falls onto the push plate, when the push plate rotates to the bottom end, the material falls, and the push plate pops out under the action of the elastic member to discharge the material.

[0007] Preferably, the feeder further comprises an upper hopper connected to the upper end of the impeller housing, a lower feeding pipe connected to the lower end of the impeller housing and a synchronous belt cover, and a feed port is provided on the upper hopper.

[0008] Preferably, the impeller feeder also includes a driving assembly, which includes a motor, an output shaft, a first synchronous belt and an impeller rotating shaft. The first synchronous belt is connected to the output shaft and the impeller rotating shaft. The motor drives the output shaft to rotate, and the first synchronous belt drives the impeller rotating shaft to rotate when the output shaft rotates.

[0009] Preferably, the transmission blanking assembly further comprises a rotating shaft, and the rotating shaft rotates coaxially with the impeller rotating shaft.

[0010] Preferably, the conveying device further comprises a Roots blower, which is used to provide positive pressure gas for the conveying device. The Roots blower is connected to a reducer, and the reducer is connected to the discharge pipe.

[0011] Preferably, the conveying device also includes a material feeding dispersion component, which includes a material diverter component, a diverter, a connecting shaft, a filter screen and a transmission wheel limiting panel. The material diverter component includes a first transmission wheel, a second synchronous belt, a second transmission wheel, a first transmission rod and a material diverter gear. The first transmission wheel rotates coaxially with the rotating shaft and the impeller rotating shaft.

[0012] Preferably, the pick gear includes a first pick gear, a second pick gear and a third pick gear, the connecting shaft is fixedly connected to the first pick gear and the third pick gear, and the rotation of the first transmission wheel drives the rotation of the second transmission wheel.

[0013] Preferably, when the gear of the first pick gear rotates to mesh with the gear of the second pick gear, the connecting shaft rotates forward with the second pick gear, and when the gear of the first pick gear rotates to mesh with the gear of the third pick gear, the connecting shaft rotates reversely with the third pick gear.

[0014] Preferably, the conveying device further comprises a conveying pipeline, which comprises an anti-wear elbow, a flange and a material conveying pipe. The anti-wear elbow is provided with a material stacking extension. When the anti-wear elbow transports materials, the materials are accumulated in the material stacking extension.

[0015] The beneficial effect of the invention is: a carbon nanotube powder conveying device of the present invention, when the push plate rotates with the impeller, when the push plate moves to the top, the push plate is pressed downward by the pressure of the material, and when the push plate moves to the bottom, after the material falls, the push plate pops out under the action of the elastic part, pushing the material into the discharge pipe, and the movable push plate pushes the material at the angle of the impeller to avoid agglomeration and adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be preferably described below with reference to the accompanying drawings and embodiments.

[0017] In the picture: Figure 1 Schematic diagram of the structure of the carbon nanotube powder conveying device of the present invention; Figure 2 for Figure 1 Schematic diagram of the internal structure of the medium impeller feeder; Figure 3 for Figure 2 Partial exploded view of the middle impeller feeder; Figure 4 for Figure 3 Schematic diagram of the structure of the mid-feed dispersion component and impeller motor; Figure 5 for Figure 4 Left side view of the center feed dispersion assembly and impeller motor; Figure 6 for Figure 5 Schematic diagram of the structure of the transmission component and the dispersed component; Figure 7 for Figure 5 Schematic diagram of the structure of the middle material shifting component; Figure 8 for Figure 1 Partial exploded view of the transmission pipeline; Figure 9 for Figure 1 Front view of the end cover of the middle impeller housing.

[0018] 100. Conveying device; 1. Roots blower; 11. Reducer; 2. Impeller feeder; 21. Feeder; 211. Upper hopper; 2111. Feed inlet; 212. Impeller housing; 2121. First limiting groove; 2122. Second limiting groove; 213. Discharge pipe; 214. Synchronous belt cover; 22. Drive assembly; 221. Motor; 222. Output shaft; 223. First synchronous belt; 224. Impeller shaft; 23. Drive discharge assembly; 231. Impeller; 2311. Chute; 232. Elastic member; 233. Push plate; 234. Limiting shaft; 235. Rotating shaft; 3. Feeding and dispersing assembly; 31. Material shifting assembly; 311. First transmission wheel; 312. Second synchronous belt; 313. Second transmission wheel; 314. First transmission rod; 315. Material shifting gear; 3151. First material shifting gear; 3152. Second material shifting gear; 3153. Third material shifting gear; 32. Paddle; 33. Connecting shaft; 34. Filter; 35. Transmission wheel limiting panel; 4. Conveying pipeline; 41. Anti-wear elbow; 411. Pile extension; 42. Flange; 43. Conveying pipe. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be pointed out that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as those commonly understood by those skilled in the art to which this application belongs. In the present invention, unless otherwise specified, the directions used, such as "up" and "down", are generally with respect to the directions shown in the accompanying drawings, or with respect to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are generally with respect to the left and right shown in the accompanying drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0020] like Figure 1 As shown, the present invention provides a carbon nanotube powder conveying device, and the conveying device 100 includes a Roots blower 1, an impeller feeder 2, a feeding and dispersing component 3 and a conveying pipeline 4.

[0021] like Figure 2 、 Figure 3 As shown, the impeller feeder 2 includes a feeder 21, a drive assembly 22 and a transmission discharge assembly 23. The feeder 21 includes an impeller shell 212, an upper hopper 211 connected to the upper end of the impeller shell 212, a discharge pipe 213 connected to the lower end of the impeller shell 212 and a synchronous belt cover 214. A feed port 2111 is provided on the upper hopper 211.

[0022] like Figure 9 As shown, end covers are provided at the front and rear ends of the impeller housing 212 , and a first limiting groove 2121 and a second limiting groove 2122 are formed on the end covers.

[0023] The driving assembly 22 includes a motor 221, an output shaft 222, a first synchronous belt 223 and an impeller rotating shaft 224. The first synchronous belt 223 is connected to the output shaft 222 and the impeller rotating shaft 224. The motor 221 drives the output shaft 222 to rotate, and the first synchronous belt 223 drives the impeller rotating shaft 224 to rotate when the output shaft 222 rotates.

[0024] like Figure 3-7 As shown, the transmission unloading assembly 23 includes an impeller 231, an elastic member 232, a push plate 233 embedded in the impeller 231 and a limiting shaft 234 provided at both ends of the push plate 233. A slide groove 2311 is provided on the impeller 231, and the limiting shaft 234 is embedded in the second limiting groove 2122. When the push plate 233 rotates to the top end, the material falls onto the push plate 233. When the push plate 233 rotates to the bottom end, the material falls, and the push plate 233 pops out under the action of the elastic member 232 to discharge the material.

[0025] The rotating shaft 235 is engaged in the first limiting groove 2121 , and the limiting shaft 234 is limited in the second limiting groove 2122 . The width of the second limiting groove 2122 is greater than the diameter of the limiting shaft 234 .

[0026] The transmission blanking assembly 23 further includes a rotating shaft 235 , which rotates coaxially with the impeller rotating shaft 224 .

[0027] like Figure 1-2 As shown, the Roots blower 1 is used to provide positive pressure gas for the conveying device 100 . The Roots blower 1 is connected to a reducer 11 , and the reducer 11 is connected to the discharge pipe 213 .

[0028] like Figure 8 As shown, the feeding and dispersing assembly 3 includes a material shifting assembly 31, a shifting piece 32, a connecting shaft 33, a filter screen 34 and a transmission wheel limiting panel 35. The material shifting assembly 31 includes a first transmission wheel 311, a second synchronous belt 312, a second transmission wheel 313, a first transmission rod 314 and a material shifting gear 315. The first transmission wheel 311 rotates coaxially with the rotating shaft 235 and the impeller rotating shaft 224.

[0029] The shifting gear 315 includes a first shifting gear 3151 , a second shifting gear 3152 and a third shifting gear 3153 . The connecting shaft 33 is fixedly connected to the first shifting gear 3151 and the third shifting gear 3153 . The rotation of the first transmission wheel 311 drives the second transmission wheel 313 to rotate.

[0030] When the gear of the first gear 3151 rotates to mesh with the gear of the second gear 3152, the connecting shaft 33 rotates forward along with the second gear 3152; when the gear of the first gear 3151 rotates to mesh with the gear of the third gear 3153, the connecting shaft 33 rotates reverse along with the third gear 3153.

[0031] like Figure 2 As shown, the conveying pipeline 4 includes an anti-wear elbow 41, a flange 42 and a conveying pipe 43. The anti-wear elbow 41 is provided with a material stacking extension 411. When the anti-wear elbow 41 transports materials, the materials are accumulated in the material stacking extension 411.

[0032] The working principle of the carbon nanotube powder conveying device of the present invention is as follows: The carbon nanotubes enter the upper hopper 211 through the feed port 2111, and the driving component 22 drives the impeller rotating shaft 224 to rotate through the first synchronous belt 223, synchronously driving the feeding and dispersing component 3, and the material-screening gear group 315 rotates forward and reverse through the connecting shaft 33, and the screened material passes through the screen, disperses the material, and enters the impeller housing 212. The push plate 233 receives the material when it rotates to the top as the impeller 231 rotates to the bottom. When the impeller 231 rotates to the bottom, the push plate 233 pops out under the action of the elastic member 232, pushing the material into the discharge pipe 213. The Roots blower 1 injects positive pressure gas into the conveying pipe 4 through the reducer 11, and the auxiliary material enters the conveying pipe 43. The flange 42 is connected to external equipment to complete the continuous and uniform conveying of carbon nanotubes.

[0033] The carbon nanotube powder conveying device of the present invention has at least the following beneficial effects: 1. The push plate 233 of the impeller feeder 2 cooperates with the elastic member 232 to achieve continuous pushing and automatic ejection of materials, thus avoiding material blockage and significantly improving conveying efficiency.

[0034] 2. The feeding and dispersing assembly 3 disperses the material agglomerates and prevents accumulation by rotating the material-dispensing gear 315 in a forward and reverse alternating manner.

[0035] 3. The material stacking extension 411 of the anti-wear elbow 41 can temporarily store materials, buffer the conveying pressure, and avoid local blockage.

[0036] It should be noted that the terminology used herein is intended only to describe specific embodiments and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular is intended to include the plural. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof. It should be noted that the terms "first," "second," and so on in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations of the present invention are apparent to those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A carbon nanotube powder conveying device, characterized in that: The conveying device (100) includes an impeller feeder (2), the impeller feeder (2) includes a feeder (21) and a transmission blanking assembly (23), the feeder (21) includes an impeller shell (212), a second limiting groove (2122) is provided on the impeller shell (212), the transmission blanking assembly (23) includes an impeller (231), an elastic member (232), a push plate (233) embedded in the impeller (231), and a push plate (233) provided on the impeller (231). The limiting shafts (234) at both ends of the push plate (233) are provided with a slide groove (2311) on the impeller (231), and the limiting shaft (234) is embedded in the second limiting groove (2122). When the push plate (233) rotates to the top end, the material falls onto the push plate (233). When the push plate (233) rotates to the bottom end, the material falls, and the push plate (233) pops out under the action of the elastic member (232) to discharge the material.

2. The conveying device according to claim 1, characterized in that: The feeder (21) further comprises an upper hopper (211) connected to the upper end of the impeller housing (212), a lower pipe (213) connected to the lower end of the impeller housing (212), and a synchronous belt cover (214); a feed port (2111) is provided on the upper hopper (211).

3. The conveying device according to claim 1, characterized in that: The impeller feeder (2) further comprises a drive assembly (22), the drive assembly (22) comprising a motor (221), an output shaft (222), a first synchronous belt (223) and an impeller rotating shaft (224), the first synchronous belt (223) being connected to the output shaft (222) and the impeller rotating shaft (224), the motor (221) driving the output shaft (222) to rotate, and the first synchronous belt (223) driving the impeller rotating shaft (224) to rotate when the output shaft (222) rotates.

4. The conveying device according to claim 3, characterized in that: The transmission blanking assembly (23) further includes a rotating shaft (235), and the rotating shaft (235) rotates coaxially with the impeller rotating shaft (224).

5. The conveying device according to claim 2, characterized in that: The conveying device (100) further comprises a Roots blower (1), the Roots blower (1) being used to provide positive pressure gas for the conveying device (100), the Roots blower (1) being connected to a reducer (11), and the reducer (11) being connected to the discharge pipe (213).

6. The conveying device according to claim 4, characterized in that: The conveying device (100) further includes a feeding and dispersing assembly (3), the feeding and dispersing assembly (3) including a material shifting assembly (31), a shifting piece (32), a connecting shaft (33), a filter screen (34) and a transmission wheel limiting panel (35), the material shifting assembly (31) including a first transmission wheel (311), a second synchronous belt (312), a second transmission wheel (313), a first transmission rod (314) and a material shifting gear (315), and the first transmission wheel (311) rotates coaxially with the rotating shaft (235) and the impeller rotating shaft (224).

7. The conveying device according to claim 6, characterized in that: The material shifting gear (315) includes a first material shifting gear (3151), a second material shifting gear (3152) and a third material shifting gear (3153). The connecting shaft (33) is fixedly connected to the first material shifting gear (3151) and the third material shifting gear (3153). The rotation of the first transmission wheel (311) drives the rotation of the second transmission wheel (313).

8. The conveying device according to claim 7, characterized in that: When the gear of the first pick gear (3151) rotates to mesh with the gear of the second pick gear (3152), the connecting shaft (33) rotates forward along with the second pick gear (3152); and when the gear of the first pick gear (3151) rotates to mesh with the gear of the third pick gear (3153), the connecting shaft (33) rotates reversely along with the third pick gear (3153).

9. The conveying device according to claim 1, characterized in that: The conveying device (100) further comprises a conveying pipeline (4), wherein the conveying pipeline (4) comprises an anti-wear elbow (41), a flange (42) and a material conveying pipe (43), wherein the anti-wear elbow (41) is provided with a material stacking extension (411), and when the anti-wear elbow (41) transports material, the material is accumulated in the material stacking extension (411).

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