CN218962570U

CN218962570U - Fluidized bed for promoting growth of carbon nano tube

Info

Publication number: CN218962570U
Application number: CN202223429283.0U
Authority: CN
Inventors: 黄忍静; 雷进财; 余宗超
Original assignee: Jiangmen Haoxin New Energy Co ltd
Current assignee: Jiangmen Haoxin New Energy Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-05-05
Anticipated expiration: 2032-12-21

Abstract

The utility model is suitable for the technical field of carbon nano tube production, and provides a fluidized bed for promoting the growth of carbon nano tubes, which comprises a reactor; a rotary sleeve is fixed at the center of the top of the porous screen frame; the bottom of the reactor is communicated with an air inlet pipe orifice; the side surface of the circumference of the reactor is fixed with a supporting plate; a servo motor is fixed at the top of the supporting plate; the output shaft of the servo motor is fixedly provided with a rotating wheel; a cam is fixed on the peripheral side surface of the rotating wheel; the top of the reactor is spliced and matched with a sealing top cover; an upper rotary drum is communicated with the center of the top of the sealing top cover; the top of the upper rotary drum is communicated with an air outlet pipe orifice; the stirring assembly is in running fit with the inner wall of the upper rotary drum, the device solves and prevents the catalyst or the carbon nano tube powder in the reactor from falling out of the reactor, avoids long-time accumulation of the catalyst or the carbon nano tube powder in the reactor, and is favorable for promoting the growth of the carbon nano tube powder.

Description

Fluidized bed for promoting growth of carbon nano tube

Technical Field

The utility model relates to the technical field of carbon nano tube production, in particular to a fluidized bed for promoting the growth of carbon nano tubes.

Background

The carbon nano tube is a one-dimensional quantum material with a special structure (the radial dimension is nano-scale, the axial dimension is micro-scale, and the two ends of the tube are basically sealed), and the carbon nano tube is used as the one-dimensional nano material, has light weight, perfect connection of a hexagonal structure and has a plurality of abnormal mechanical, electrical and chemical properties.

The utility model provides a fluidized bed that carbon nanotube grows can refer to the patent document of publication No. CN215326953U, a equipment of producing carbon nanotube with fluidized bed is provided, this equipment of producing carbon nanotube with fluidized bed includes the fluidized bed reactor body, rotary device and egress opening, rotary device is including rotating the main breather pipe of connecting in the reaction chamber and setting up in a plurality of vice breather pipes at main breather pipe both ends, the one end of main breather pipe sets up in the reaction chamber top, the other end passes the reaction chamber bottom and extends to the reactor body outside and form the inflow port that can supply gas inflow, a plurality of vice breather pipes are by the straight line pipe and form the bending pipe two parts of certain angle with the straight line pipe and constitute, be provided with the connecting axle along the vertical direction of reactor body between the vice breather pipe, the connecting axle overcoat is equipped with the rotary drum, the side and the reaction chamber inner wall contact of rotary drum, the bending pipe is provided with the bronchus towards the one side that is close to the rotary drum.

However, in the fluidized bed for growing carbon nanotubes, the catalyst or carbon nanotube powder falls out of the reactor easily due to the lack of a necessary porous screen frame structure in the fluidized bed, so that long-time accumulation of the catalyst or carbon nanotube powder in the reactor is unfavorable for growth of the carbon nanotube powder.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a fluidized bed for promoting the growth of carbon nanotubes, which can prevent the catalyst or carbon nanotube powder in a reactor from falling out of the reactor, avoid long-time accumulation of the catalyst or carbon nanotube powder in the reactor and is beneficial to promoting the growth of the carbon nanotube powder.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a fluidized bed for promoting the growth of carbon nanotubes, comprising a reactor; a porous screen frame is inserted and matched in the reactor; a rotary sleeve is fixed at the center of the top of the porous screen frame; the bottom of the reactor is communicated with an air inlet pipe orifice; a supporting plate is fixed on the peripheral side surface of the reactor; a servo motor is fixed at the top of the supporting plate; the output shaft of the servo motor is fixedly provided with a rotating wheel; and a cam is fixed on the peripheral side surface of the rotating wheel.

The top of the reactor is in plug-in fit with a sealing top cover; an upper rotary drum is communicated with the center of the top of the sealing top cover; the top of the upper rotary drum is communicated with an air outlet pipe orifice; the inner wall of the upper rotary drum is in rotary fit with a stirring assembly.

The stirring assembly comprises a main rotating shaft; a spiral ribbon stirring paddle is fixed on the peripheral side surface of the main rotating shaft; the main rotating shaft is in rotating fit with the rotating sleeve.

The top of the main rotating shaft is in threaded rotation connection with a rotating disc; a plurality of concave grooves are formed in the peripheral side face of the rotating disc; the cam is engaged with the concave groove.

The utility model is further provided with: the inner wall of the reactor is provided with a plurality of guide vertical grooves.

A plurality of guide sliding plates are fixed on the middle peripheral side surface of the porous screen frame; the guide vertical groove is in sliding fit with the guide sliding plate.

The utility model is further provided with: and the top of the guide sliding plate is provided with a plug hole.

A plug-in column is fixed at the bottom of the guide vertical groove; the plug-in column is in plug-in fit with the plug-in hole.

The utility model is further provided with: a plurality of fixed columns are fixed at the top of the reactor.

The top of the sealing top cover is provided with a plurality of fixing holes; the fixing holes are in plug-in fit with the fixing columns.

The utility model is further provided with: and a sealing groove is formed in the top of the reactor.

An annular rail is fixed at the bottom of the sealing top cover; the annular rail is matched with the sealing groove in a clamping way.

The utility model has the advantages that:

1. according to the utility model, larger air flow is introduced through the bottom air inlet pipe orifice, the porous screen frame fixed at the bottom of the reactor is used for aerating the carbon nano tube powder and the catalyst, and the diameter of the screen mesh is smaller than that of the carbon nano tube powder, so that the catalyst or the carbon nano tube powder can be prevented from falling out of the reactor on one hand, and the carbon powder can be blown higher by introducing the larger air flow, and the multiple air flows are mutually interfered, so that turbulence in the fluidized bed is increased, fluidization of the powder can be promoted, and growth of the carbon nano tube powder is promoted.

2. According to the utility model, the servo motor is started to drive the cam fixed on the peripheral side surface of the rotating wheel to intermittently and mutually mesh with the concave grooves formed on the peripheral side surface of the rotating disc, so that intermittent rotation of the stirring assembly is realized, the spiral ribbon stirring paddles in the stirring assembly are driven to discontinuously rotate, the stirring of the spiral ribbon stirring paddles in the process promotes fluidization of carbon nano tube powder on one hand, and on the other hand, the powder can be lifted to relieve the pressure at the bottom, promote contact between gas and carbon nano tube powder, be beneficial to growth of carbon nano tubes on the surface of the bulk powder, and the discontinuous and proper dislocation can block unlimited excessive lifting of the powder.

Drawings

Fig. 1 is a schematic view of the internal structure of the present utility model.

FIG. 2 is a schematic view of the internal structure of the reactor according to the present utility model.

FIG. 3 is a schematic structural view of the stirring assembly of the present utility model.

Fig. 4 is a front view of the stirring assembly of the present utility model.

FIG. 5 is a schematic view of the structure of the porous screen frame of the present utility model.

FIG. 6 is a schematic view of the seal cap of the present utility model.

In the figure: 1. a reactor; 2. a porous screen frame; 3. rotating the sleeve; 4. an air inlet pipe orifice; 5. a support plate; 6. a servo motor; 7. a rotating wheel; 8. a cam; 9. sealing the top cover; 10. an upper drum; 11. a stirring assembly; 12. a main rotating shaft; 13. helical ribbon stirring paddles; 14. a rotating disc; 15. a concave groove; 16. a guide vertical groove; 17. a guide slide plate; 18. a plug hole; 19. a plug-in column; 20. fixing the column; 21. a fixing hole; 22. sealing grooves; 23. an annular rail.

Detailed Description

It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

Example 1

Referring to fig. 1-6, the present utility model provides the following technical solutions:

in particular to a fluidized bed for promoting the growth of carbon nanotubes, which comprises a reactor 1; the inside of the reactor 1 is inserted and matched with a porous screen frame 2; a rotary sleeve 3 is fixed at the center of the top of the porous screen frame 2; the bottom of the reactor 1 is communicated with an air inlet pipe orifice 4; the side surface of the circumference of the reactor 1 is fixed with a supporting plate 5; a servo motor 6 is fixed at the top of the supporting plate 5; the output shaft of the servo motor 6 is fixedly provided with a rotating wheel 7; cams 8 are fixed on the side surfaces of the periphery of the rotating wheel 7; the top of the reactor 1 is spliced and matched with a sealing top cover 9; an upper rotary drum 10 is communicated with the center of the top of the sealing top cover 9; the top of the upper rotary drum 10 is communicated with an air outlet pipe orifice 24; the inner wall of the upper rotary drum 10 is rotatably matched with a stirring assembly 11; the stirring assembly 11 comprises a main rotating shaft 12; a spiral ribbon stirring paddle 13 is fixed on the side surface of the periphery of the main rotating shaft 12; the main rotating shaft 12 is in rotating fit with the rotating sleeve 3; the top of the main rotating shaft 12 is in threaded rotation connection with a rotating disc 14; a plurality of concave grooves 15 are formed in the peripheral side face of the rotating disc 14; the cam 8 engages with the concave groove 15.

One specific application of this embodiment is:

carbon nano tube powder and catalyst are placed into a reactor 1, the peripheral side surface of the reactor 1 is fixed on a workbench, the reactor 1 is in a state of being perpendicular to the surface of the workbench after the fixing, a large air flow is introduced into a bottom air inlet pipe orifice 4, the carbon nano tube powder and the catalyst are aerated through a porous screen frame 2 fixed at the inner bottom of the reactor 1, the diameter of a screen mesh is smaller than that of the carbon nano tube powder, on one hand, the catalyst or the carbon nano tube powder can be prevented from falling out of the reactor 1, on the other hand, the larger air flow is introduced to blow carbon powder higher, the mutual interference between multiple air flows is facilitated, turbulence inside a fluidized bed is increased, powder fluidization is promoted, so that the growth of the carbon nano tube powder is promoted, then a servo motor 6 is electrified by an external power supply, and the servo motor 6 is started, a cam 8 fixed at the peripheral side surface of a rotating wheel 7 is driven to be in meshed contact with a plurality of concave grooves 15 formed at the peripheral side surface of a rotating disc 14, intermittent rotation of a stirring assembly 11 is realized, on the other hand, a screw 13 in the stirring assembly 11 is driven to be discontinuously rotated, the stirring blade 13 is prevented from falling out of the carbon nano tube powder, on the other hand, the pressure of the stirring blade 13 in the stirring assembly is promoted to be in contact with the ribbon-shaped carbon nano tube powder, and the growth of the carbon nano tube is promoted, on the stirring blade is promoted, and on the other hand, the stirring process is promoted. The discontinuity and proper dislocation can block the infinite excessive lifting of the powder.

Example two

Referring to fig. 1-6, the second embodiment is modified from the first embodiment in that a plurality of guide vertical grooves 16 are formed on the inner wall of the reactor 1; a plurality of guide sliding plates 17 are fixed on the middle peripheral side surface of the porous screen frame 2; the guide vertical groove 16 is in sliding fit with the guide sliding plate 17; the top of the guide sliding plate 17 is provided with a plug hole 18; a plug-in column 19 is fixed at the inner bottom of the guide vertical groove 16; the plug-in post 19 is matched with the plug-in hole 18 in a plug-in way: a plurality of fixed columns 20 are fixed at the top of the reactor 1; the top of the sealing top cover 9 is provided with a plurality of fixing holes 21; the fixing hole 21 is in plug-in fit with the fixing column 20; the top of the reactor 1 is provided with a sealing groove 22; an annular rail 23 is fixed at the bottom of the seal top cover 9; the annular rail 23 is in clamping fit with the seal groove 22.

One specific application of this embodiment is:

the method comprises the steps of splicing a splicing hole 18 formed in the top of a guide sliding plate 17 with a splicing column 19 fixed in the bottom of a guide vertical groove 16, placing a sealing gasket in a sealing groove 22 formed in the top of a reactor 1 through sliding fit between the guide sliding plate 17 and the guide vertical groove 16 until a porous screen frame 2 slides to the bottom of the reactor 1, rotationally connecting the porous screen frame 2 through threads between external nuts and the splicing column 19, fixing the porous screen frame 2, rotationally connecting the lower end and the upper end of a main rotating shaft 12 in a stirring assembly 11 with an upper rotating drum 10 and a rotating sleeve 3 respectively, and rotationally connecting the lower end and the upper end of the main rotating shaft 12 in the stirring assembly 11 with each other, wherein after connection, sealing gaskets are placed in the sealing groove 22 formed in the top of the reactor 1 through inserting fit between a plurality of fixing holes 21 in the top of a sealing top cover 9, so that the sealing top cover 23 is in clamping fit with the sealing groove 22, certain sealing performance is guaranteed, and rotationally connecting the sealing top cover 9 with threads between the sealing top cover 20 through external nuts, and finally rotationally connecting the rotating disc 14 with the top of the main rotating shaft 12 in the reactor 1, and rotationally connecting the stirring assembly 11 in the reactor 1.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. A fluidized bed for promoting the growth of carbon nanotubes, comprising a reactor (1); the method is characterized in that: a porous screen frame (2) is inserted and matched in the reactor (1); a rotary sleeve (3) is fixed at the center of the top of the porous screen frame (2); the bottom of the reactor (1) is communicated with an air inlet pipe orifice (4); a supporting plate (5) is fixed on the peripheral side surface of the reactor (1); a servo motor (6) is fixed at the top of the supporting plate (5); the output shaft of the servo motor (6) is fixedly provided with a rotating wheel (7); a cam (8) is fixed on the peripheral side surface of the rotating wheel (7);

a sealing top cover (9) is inserted and matched at the top of the reactor (1); an upper rotary drum (10) is communicated with the center of the top of the sealing top cover (9); the top of the upper rotary drum (10) is communicated with an air outlet pipe orifice (24); the inner wall of the upper rotary drum (10) is in rotary fit with a stirring assembly (11);

the stirring assembly (11) comprises a main rotating shaft (12); a spiral ribbon stirring paddle (13) is fixed on the peripheral side surface of the main rotating shaft (12); the main rotating shaft (12) is in rotating fit with the rotating sleeve (3);

the top thread of the main rotating shaft (12) is rotationally connected with a rotating disc (14); a plurality of concave grooves (15) are formed in the peripheral side face of the rotating disc (14); the cam (8) is meshed with the concave groove (15).

2. A fluidized bed for promoting the growth of carbon nanotubes according to claim 1, wherein: a plurality of guide vertical grooves (16) are formed in the inner wall of the reactor (1);

a plurality of guide sliding plates (17) are fixed on the middle peripheral side surface of the porous screen frame (2); the guide vertical groove (16) is in sliding fit with the guide sliding plate (17).

3. A fluidized bed for promoting the growth of carbon nanotubes according to claim 2, wherein: the top of the guide sliding plate (17) is provided with a plug hole (18);

a plug-in column (19) is fixed at the inner bottom of the guide vertical groove (16); the plug-in column (19) is in plug-in fit with the plug-in hole (18).

4. A fluidized bed for promoting the growth of carbon nanotubes according to claim 3, wherein: a plurality of fixed columns (20) are fixed at the top of the reactor (1);

a plurality of fixing holes (21) are formed in the top of the sealing top cover (9); the fixing holes (21) are in plug-in fit with the fixing columns (20).

5. The fluidized bed for promoting the growth of carbon nanotubes according to claim 4, wherein: a sealing groove (22) is formed in the top of the reactor (1);

an annular rail (23) is fixed at the bottom of the sealing top cover (9); the annular rail (23) is matched with the sealing groove (22) in a clamping mode.