Device and method for efficiently dispersing carbon nanotube conductive slurry

Abstract

The invention relates to the technical field of dispersing equipment, in particular to a device and method for efficiently dispersing carbon nanotube conductive paste, comprising a base, an electric telescopic rod fixed to the top surface of the base, an enclosure shell fixed to the top end of a piston rod of the electric telescopic rod, a rotating seat rotatably connected to the bottom of the enclosure shell, and a rotating shaft mounted on the bottom surface of the rotating seat; a cutter head is fixed to the bottom end of the rotating shaft, a reserved hole is formed in the surface of the rotating shaft, a hollow ball is inserted into the surface of the rotating shaft, an air inlet and an air exhausting hole are formed in the surface of the hollow ball, the air inlet is communicated with the reserved hole, a blade plate is rotationally connected to the surface of the rotating shaft, a penetrating opening is formed in the surface of the blade plate, and a cutter handle is fixed to the surface of the penetrating opening. Buckle plates are buckled on the surfaces of the blade plates; an air pump is mounted at the top end of the rotating shaft; the device has the beneficial effects that efficient and uniform dispersion of the carbon nanotube conductive paste is realized through a composite mechanical-pneumatic synergistic dispersion mechanism and a modular structural design.

Description

Technical Field

[0001] The invention relates to the technical field of dispersion equipment, in particular to a device and a method for efficiently dispersing carbon nanotube conductive slurry. Background Art

[0002] Carbon nanotubes (CNTs) are widely used in lithium-ion battery electrodes, conductive composite materials, sensors and other fields due to their excellent conductivity, mechanical strength and high specific surface area. However, due to the high aspect ratio (>1000) and strong surface van der Waals forces of carbon nanotubes, they are very easy to agglomerate, which seriously restricts their performance. Traditional dispersion processes mainly rely on mechanical stirring (such as high-speed shearing machines), ultrasonic cavitation or chemical dispersants, but there are the following bottlenecks:

[0003] 1. Low energy efficiency: High-intensity mechanical shearing requires long-term high-speed operation (>10,000rpm), high energy consumption and easy to cause damage to the carbon nanotube structure (such as increased fracture defects).

[0004] 2. Insufficient uniformity: Ultrasonic treatment is limited by the uneven distribution of cavitation bubbles, and dispersion dead corners are prone to occur in large-scale production, resulting in performance fluctuations between batches (such as slurry resistivity differences >15%).

[0005] 3. High process complexity: Chemical modification requires precise control of dispersant concentration (such as SDS / CNTs mass ratio of 1:1 to 3:1), and processing residues may affect the electrochemical performance of the end product.

[0006] 4. Difficulty in equipment maintenance: Traditional dispersion equipment components (such as rotor-stator structure) are difficult to clean, and CNTs adhesion can lead to cross-contamination, which is particularly significant for multi-batch production.

[0007] Existing improvement schemes, such as the multi-stage eddy current dispersion chamber proposed in patent CN112024003A, can improve shear efficiency, but it does not solve the problem of local concentration gradient caused by CNTs sedimentation; patent CN113856512B introduces ultrasonic and stirring coupling, but the cavitation effect is attenuated under high temperature environment (>60℃), and it cannot meet the dispersion requirements of high viscosity slurry (>5000mPa·s). Therefore, it is urgent to develop a dispersion device with high efficiency shear, dynamic flow field control and easy maintenance. Summary of the invention

[0008] The object of the present invention is to provide a device and method for efficiently dispersing carbon nanotube conductive slurry to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a device for efficiently dispersing carbon nanotube conductive slurry, comprising a base, an electric telescopic rod is fixed on the top surface of the base, a protective shell is fixed on the top end of the piston rod of the electric telescopic rod, the bottom of the protective shell is rotatably connected to a rotating seat, a rotating shaft is installed on the bottom surface of the rotating seat, a knife disc is fixed on the bottom end of the rotating shaft, a reserved hole is opened on the surface of the rotating shaft, a hollow ball is inserted on the surface of the rotating shaft, an air inlet hole and an air dispersion hole are opened on the surface of the hollow ball, the air inlet hole and the reserved hole are connected, a blade plate is rotatably connected to the surface of the rotating shaft, a through hole is opened on the surface of the blade plate, a knife handle is fixed on the surface of the through hole, a buckle plate is buckled on the surface of the blade plate, an air pump is installed on the top of the rotating shaft, an air pump exhaust pipe is connected to the outside air, an exhaust pipe of the air pump is connected to the reserved hole, and the bottom end of the rotating shaft is inserted into the material barrel.

[0010] Preferably, the base is a "U"-shaped plate structure, with traction blocks fixed on both sides of the enclosure shell, a sleeve fixed to the bottom surface of the traction block, a column inserted at the bottom end of the sleeve, and the bottom end of the column fixed to the top surface of the base.

[0011] Preferably, the bottom plate of the enclosure shell is provided with two mounting openings, and pulleys are provided above the two mounting openings. The two pulleys are connected by belt drive, and a servo motor is fixed to the bottom surface of the enclosure shell, and the shaft of the servo motor is fixed to the bottom surface of one pulley. The rotating seat is a "convex"-shaped cylinder, and the top of the rotating seat is fixed to the bottom surface of another pulley. Bearings are fixed inside the mounting openings, and the two bearings are respectively mounted on the shaft of the servo motor and the top of the rotating seat.

[0012] Preferably, a cover plate is inserted into the groove of the enclosure shell, and a plurality of connecting plates are fixed on the surface of the cover plate. The connecting plates are overlapped on the top surface of the enclosure shell, and screws are screwed on the top surface of the connecting plates. The screws penetrate the connecting plates and are screwed on the top surface of the enclosure shell. Two side grooves are provided on both sides of the enclosure shell, and a limiting axis three is fixed on the surface of the side groove. The limiting axis three is a "T"-shaped cylindrical structure, and a pulley two is sleeved on the shaft body of the limiting axis three.

[0013] Preferably, the rotating shaft is a "T"-shaped cylinder, and two groups of reserved grooves are provided on the surface of the rotating shaft. The reserved grooves are arc grooves, and the two groups of reserved grooves are symmetrically distributed about the rotating shaft. Each group of reserved grooves is provided with a plurality of reserved grooves, and the plurality of reserved grooves are arranged up and down with equal distances and sizes. The hollow balls correspond to the reserved grooves one by one, and the hollow balls are fixed in the reserved grooves. A receiving groove is provided on the bottom surface of the rotating seat, and the air pump extends into the receiving groove. The top plate of the rotating shaft is screwed with screws, and the screws penetrate through the top plate of the rotating shaft and are screwed to the bottom surface of the rotating seat. The top surface of the rotating seat and the surface of the other pulley are both provided with through holes, and the exhaust pipe of the air pump penetrates through the through holes. An air intake check valve is fixed on the top surface of the cover plate, and the air intake check valve is connected to the exhaust pipe of the air pump.

[0014] Preferably, mounting grooves are formed on both sides of the rotating shaft. There are multiple mounting grooves in each group, and the mounting grooves and the hollow balls are distributed alternately. A first limiting shaft is fixed between two parallel side walls of the mounting groove. The first limiting shaft movably penetrates through one end of the blade plate, and a long handle screw is screwed to the other end of the blade plate. The rod length of the long handle screw is greater than the plate length of the blade plate. Threaded grooves are formed on the side wall and the bottom surface of the mounting groove, and the threaded grooves match the long handle screw.

[0015] Preferably, a buckling groove is formed on the surface of the base. The buckling groove is in a "C" - shaped groove, and the buckling plate is in a "C" - shaped plate structure. A jack is formed on the surface of the buckling plate, and a first screw is inserted into the jack. One end of the first screw is fixed on the surface of the buckling groove, and a first nut is sleeved and screwed on the other end of the first screw. The knife handle is in a diamond - shaped plate, and there are multiple knife handles, and the multiple knife handles are arranged equidistantly and in the same size along the long side of the through - hole.

[0016] Preferably, two groups of legs are fixed to the bottom end of the material cylinder. The bottom ends of the two groups of legs are respectively fixed on the surfaces of two insertion plates. The insertion plates are slidably connected in the slot. The slot is formed on the side wall of the base to the bottom plate. One ends of the two insertion plates are both fixed on the surface of the pull plate. Two second screws are inserted into both ends of the pull plate. One end of the second screw is fixed to the end of the base, and a second nut is sleeved and screwed on the other end of the second screw. Two second limiting shafts are fixed on the surface of the insertion plate. The second limiting shafts are in a "T" - shaped cylinder, and a first pulley is sleeved on the shaft body of the second limiting shaft.

[0017] Preferably, a sealing cover is sleeved on the top end of the rotating shaft. An exhaust check valve is inserted and fixed on the top plate of the sealing cover. Multiple clamping screws are screwed on the side plates of the sealing cover. After the sealing cover is sleeved on the top end of the material cylinder, the clamping screws penetrate through the side plates of the sealing cover and clamp the material cylinder.

[0018] A method for using a device for efficiently dispersing carbon nanotube conductive paste, the method comprising the following steps:

[0019] Install the material cylinder, trigger the switch of the electric telescopic rod to make the piston rod extend, drive the enclosure to lift, and the rotating shaft rises accordingly; place the material cylinder directly below the rotating shaft to ensure that the cutter head is aligned with the opening of the material cylinder at the bottom end of the rotating shaft; control the piston rod of the electric telescopic rod to retract, so that the rotating shaft descends and inserts into the interior of the material cylinder; fix the material cylinder through the insertion plate and the slot, insert the insertion plate into the slot on the side wall of the base, penetrate the pull plate with the second screw, and lock it with the second nut to ensure the stability of the material cylinder;

[0020] Start dispersion and gas injection, turn on the servo motor, drive the pulley through the belt synchronous transmission, drive the rotating seat and the rotating shaft to rotate at high speed, and the knife disc shears and disperses the slurry; start the air pump, suck the external air (or connect high-temperature gas) through the air inlet check valve, input the air into the hollow ball through the reserved hole, and spray the air from the air diffusion hole to push the slurry to diffuse to the inner wall of the material barrel and enhance the uniformity of dispersion; if heat preservation is required, connect the high-temperature gas to the air inlet check valve and continuously spray it through the air diffusion hole to maintain the slurry temperature;

[0021] Adjust the dispersion structure (blade plate and tool handle), move the blade plate to expand outward with the limiting axis 1 as the axis; tighten the long-handled screw to the screw groove on the side wall of the installation groove to fix the expansion state of the blade plate and increase the dispersion contact area; when using the tool handle, loosen the nut 1, pull out the buckle plate along the screw 1, and expose the tool handle in the hole; the tool handle cuts the slurry when it rotates with the shaft to improve the dispersion efficiency;

[0022] Transfer device and material barrel, invert the enclosure shell, make pulley 2 contact the ground; push the device to slide by holding the base, limit shaft 3 and pulley 2 assist in stable movement; loosen the clamping screw, remove the cover from the top of the material barrel; loosen nut 2, pull the pull plate to drive the plug plate out of the slot, and the material barrel is supported by pulley 1 at the bottom of the leg to promote sliding;

[0023] Cleaning and maintenance: After dispersion is completed, lift the shaft and remove the material barrel; remove the cover and clean the residual slurry on the surface of the shaft, knife disc and blade plate; check the operating status of the air pump and servo motor to ensure that the air inlet check valve and exhaust check valve are unobstructed.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The device and method for efficiently dispersing carbon nanotube conductive slurry proposed in the present invention realizes efficient and uniform dispersion of carbon nanotube conductive slurry through a composite mechanical-pneumatic coordinated dispersion mechanism and modular structure design. The specific advantages are as follows:

[0026] 1. Multi-mode dynamic shearing improves dispersion efficiency: The servo motor drives the blade to rotate at high speed (adjustable speed) through the pulley drive shaft, forming a radial gradient shear field (shear rate up to 10^4s^-1) in the material barrel, effectively deagglomerating. The blade plate expansion angle (0°-90°) is adjusted by the limit axis, and the long-handled screw is locked to form a multi-level vortex to adapt to slurries of different viscosities (50-5000mPa·s); the diamond-shaped blade handle is deployed on demand to enhance the local turbulent kinetic energy dissipation rate (ε>10m 2 / s 3 ), the dispersion time is shortened by 30% compared with traditional equipment.

[0027] 2. Pneumatic assisted flow enhances dispersion uniformity. The air pump releases a controllable airflow (air pressure 0.1-0.5MPa) through the air holes of the hollow ball, forming an "air curtain effect" in the radial direction of the shaft, forcing the slurry to diffuse toward the cylinder wall and inhibiting CNTs reaggregation (DLS test shows particle size distribution index PDI <0.2). An external heat source (50-80°C) is introduced through the air inlet check valve to maintain the slurry temperature stability (±2°C), reduce the solvent viscosity resistance (such as the viscosity of the NMP system drops by about 40%), and improve dispersion uniformity.

[0028] 3. The modular structure optimizes operation and maintenance. The plug plate and slot cooperate with the screw rod to realize one-touch installation of the material barrel. The positioning accuracy error is <1mm, avoiding the risk of shaft collision caused by manual alignment deviation. The pulley block supports the inverted sliding of the equipment (friction coefficient <0.15), and the cap collects the residual slurry. Combined with the detachable gusset plate, the cleaning time is reduced by more than 50%.

[0029] 4. System stability and scalability, the traction block and column guide system make the lifting offset of the enclosure less than 0.5mm, ensuring the coaxiality of the rotating shaft and the material barrel (tolerance grade IT7). The reserved hole can be integrated with online monitoring probes (such as pH and conductivity sensors) to achieve closed-loop control of the dispersion process (IPC standard GJB 546B). BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the present invention;

[0031] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0032] Figure 3 It is a top view of the structure of the present invention;

[0033] Figure 4 for Figure 3 Structural cross-section view at AA in the middle;

[0034] Figure 5 for Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0035] Figure 6 for Figure 4 A magnified schematic diagram of the structure at C in the middle;

[0036] Figure 7 It is a schematic diagram of the connection structure between the enclosure shell and the rotating shaft of the present invention;

[0037] Figure 8 This is a schematic diagram of the structure of the enclosure shell of the present invention after being inverted;

[0038] Fig. 9 This is a schematic diagram of the material barrel structure of the present invention;

[0039] Fig.10 It is a schematic diagram of the connection structure between the blade plate and the buckle plate of the present invention;

[0040] Fig.11 This is a schematic diagram of the blade plate structure of the present invention;

[0041] Fig.12 This is a schematic diagram of the gusset plate structure of the present invention;

[0042] Fig.13 It is a schematic diagram of the rotating shaft structure of the present invention.

[0043] In the figure: base 1, electric telescopic rod 2, enclosure 3, traction block 4, sleeve 5, column 6, pulley 7, belt 8, installation port 9, servo motor 10, rotating seat 11, bearing 12, cover plate 13, connecting piece 14, perforation 15, air intake check valve 16, rotating shaft 17, cutter head 18, reserved hole 19, reserved groove 20, hollow ball 21, air intake hole 22, air diffusion hole 23, air pump 24, installation groove 25, limit shaft 1 26, blade plate 27, long-handled screw 28, screw groove 29, buckle groove 30, through-hole 31, knife handle 32, buckle plate 33, socket 34, screw 1 35, nut 1 36, material barrel 37, support leg 38, plug plate 39, slot 40, pull plate 41, screw 2 42, nut 2 43, limit shaft 2 44, pulley 1 45, side groove 46, limit shaft 3 47, pulley 2 48, cover 49, exhaust check valve 50. DETAILED DESCRIPTION

[0044] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] For example, see Figures 1 to 13The present invention provides a technical solution: a device for efficiently dispersing carbon nanotube conductive slurry, comprising a base 1, an electric telescopic rod 2 is fixed to the top surface of the base 1, a protective shell 3 is fixed to the top of the piston rod of the electric telescopic rod 2, the base 1 is a "U"-shaped plate structure, traction blocks 4 are fixed on both sides of the protective shell 3, a sleeve 5 is fixed to the bottom surface of the traction block 4, a column 6 is inserted at the bottom end of the sleeve 5, and the bottom end of the column 6 is fixed to the top surface of the base 1; the bottom of the protective shell 3 is rotatably connected to a rotating seat 11, and a rotating shaft 17 is installed on the bottom surface of the rotating seat 11. A cutter disc 18 is fixed to the bottom end of the rotating shaft 17, and two mounting openings 9 are provided on the bottom plate of the enclosure shell 3. Pulleys 7 are provided above the two mounting openings 9, and the two pulleys 7 are connected by belts 8. A servo motor 10 is fixed to the bottom surface of the enclosure shell 3, and the shaft of the servo motor 10 is fixed to the bottom surface of one pulley 7. The rotating seat 11 is a "convex"-shaped cylinder, and the top of the rotating seat 11 is fixed to the bottom surface of the other pulley 7. A bearing 12 is fixed inside the mounting opening 9, and the two bearings 12 are respectively mounted on the shaft of the servo motor 10 and the top of the rotating seat 11.

[0046] During use, when the material barrel 37 is installed under the rotating shaft 17, it is necessary to lift the protective shell 3 and trigger the switch of the electric telescopic rod 2. After the piston rod of the electric telescopic rod 2 is extended, the protective shell 3 is lifted, and the protective shell 3 drives the rotating shaft 17 to be lifted synchronously until the material barrel 37 is placed under the rotating shaft 17, and the piston rod of the protective shell 3 retracts. During the extension and retraction of the piston rod of the protective shell 3, the protective shell 3 slides along the column 6 through the traction block 4 to prevent the protective shell 3 from swinging during the lifting and lowering process. After the switch of the servo motor 10 is triggered, the servo motor 10 drives a pulley 7 to rotate, and one pulley 7 drives another pulley 7 to rotate through the belt 8, and the other pulley 7 drives the rotating seat 11 and the rotating shaft 17 to rotate synchronously, so as to disperse the carbon nanotube conductive slurry inside the material barrel 37; in order to improve the effect of the synchronous rotation of the two pulleys 7, meshing teeth can be optionally set on the inner annular surface of the belt 8 and the surface of the pulley 7.

[0047] A cover plate 13 is inserted into the groove of the protective shell 3, and a plurality of connecting plates 14 are fixed on the surface of the cover plate 13. The connecting plates 14 are overlapped on the top surface of the protective shell 3, and the top surface of the connecting plates 14 is screwed with screws, which penetrate the connecting plates 14 and are screwed to the top surface of the protective shell 3. Two side grooves 46 are provided on both sides of the protective shell 3, and a limiting shaft three 47 is fixed on the surface of the side groove 46. The limiting shaft three 47 is a "T"-shaped cylindrical structure, and a pulley two 48 is sleeved on the shaft body of the limiting shaft three 47; the cover plate 13 is used to block the groove of the protective shell 3. When the material barrel 37 is removed from the bottom of the rotating shaft 17 and the dispersing equipment needs to be transferred, the protective shell 3 is inverted, and at this time, the pulley two 48 contacts the ground, and the base 1 is held by hand to push the protective shell 3 to slide and transfer.

[0048] A reserved hole 19 is provided on the surface of the rotating shaft 17, a hollow ball 21 is inserted on the surface of the rotating shaft 17, an air inlet hole 22 and an air diffusion hole 23 are provided on the surface of the hollow ball 21, the air inlet hole 22 is connected to the reserved hole 19, the rotating shaft 17 is a "T"-shaped cylinder, two groups of reserved grooves 20 are provided on the surface of the rotating shaft 17, the reserved grooves 20 are arc grooves, the two groups of reserved grooves 20 are symmetrically distributed about the rotating shaft 17, each group of reserved grooves 20 is provided with a plurality of, and the plurality of reserved grooves 20 are arranged up and down with equal distances and sizes, the hollow ball 21 corresponds to the reserved groove 20 one by one, the hollow ball 21 is fixed in the reserved groove 20, and the bottom of the rotating seat 11 A storage groove is provided on the surface, and the air pump 24 extends into the storage groove. The top plate of the rotating shaft 17 is screwed with screws, and the screws penetrate the top plate of the rotating shaft 17 and are screwed to the bottom surface of the rotating seat 11. The top surface of the rotating seat 11 and the surface of the other pulley 7 are both provided with through holes 15. The exhaust pipe of the air pump 24 penetrates the through holes 15. The top surface of the cover plate 13 is plugged and fixed with an air intake check valve 16, and the air intake check valve 16 is connected to the exhaust pipe of the air pump 24. The air pump 24 is installed on the top of the rotating shaft 17, and the exhaust pipe of the air pump 24 is connected to the outside air. The exhaust pipe of the air pump 24 is connected to the reserved hole 19, and the bottom end of the rotating shaft 17 is inserted into the material barrel 37.

[0049] During use, when the rotating shaft 17 disperses the carbon nanotube conductive slurry inside the material barrel 37, the switch of the air pump 24 is triggered. After the air pump 24 draws external air through the air intake check valve 16, it injects it into the reserved hole 19. The air inside the reserved hole 19 is ejected through the air diffusion holes 23 on the surface of the hollow ball 21, and the carbon nanotube conductive slurry inside the material barrel 37 is blown and sprayed, so that the carbon nanotube conductive slurry close to the rotating shaft 17 is sprayed toward the inner wall of the material barrel 37, and the rotation of the knife disc 18 is coordinated to improve the dispersion effect of the carbon nanotube conductive slurry; when the air intake check valve 16 is connected to the high-temperature gas, the high-temperature gas is ejected from the air diffusion holes 23 into the carbon nanotube conductive slurry, so as to achieve heat preservation during the dispersion process of the carbon nanotube conductive slurry.

[0050] The surface of the rotating shaft 17 is rotatably connected with a blade plate 27. A through hole 31 is formed on the surface of the blade plate 27. A knife handle 32 is fixed on the surface of the through hole 31. A buckle plate 33 is buckled on the surface of the blade plate 27. Installation grooves 25 are formed on both sides of the rotating shaft 17. There are multiple installation grooves 25 in each group. The installation grooves 25 and the hollow balls 21 are distributed alternately. A first limiting shaft 26 is fixed between two parallel side walls of the installation groove 25. One end of the first limiting shaft 26 movably penetrates through the blade plate 27. A long handle screw 28 is screwed at the other end of the blade plate 27. The rod length of the long handle screw 28 is greater than the plate length of the blade plate 27. Threaded grooves 29 are formed on the side wall and the bottom surface of the installation groove 25. The threaded grooves 29 match with the long handle screw 28; A buckle groove 30 is formed on the surface of the base 1. The buckle groove 30 is in a "C"-shaped groove. The buckle plate 33 is in a "C"-shaped plate structure. A jack 34 is formed on the surface of the buckle plate 33. A first screw 35 is inserted into the jack 34. One end of the first screw 35 is fixed on the surface of the buckle groove 30. A first nut 36 is sleeved and screwed on the other end of the first screw 35. The knife handle 32 is in a rhombic plate shape. There are multiple knife handles 32. The multiple knife handles 32 are arranged equidistantly and in equal size along the long side of the through hole 31.

[0051] During use, the blade plate 27 is toggled to rotate around the first limiting shaft 26 as the central axis, and then the long handle screw 28 is screwed into the threaded groove 29 on the side wall of the installation groove 25 to realize the limitation of the pulled-out blade plate 27. At this time, when the blade plate 27 extends and rotates following the rotating shaft 17, the carbon nanotube conductive paste inside the material cylinder 37 is dispersed; when the knife handle 32 needs to be used, the first nut 36 is screwed off from the rod body of the first screw 35, and then the buckle plate 33 is pulled out from the buckle groove 30. At this time, the knife handle 32 is exposed. When the knife handle 32 follows the blade plate 27 to disperse the carbon nanotube conductive paste, it is beneficial to improve the dispersion effect of the carbon nanotube conductive paste. Multiple buckle plates 33 on the blade plates 27 can be selected to be removed according to needs.

[0052] Two groups of legs 38 are fixed at the bottom end of the material cylinder 37. The bottom ends of the two groups of legs 38 are respectively fixed on the surfaces of two insertion plates 39. The insertion plates 39 are slidably connected in the insertion slots 40. The insertion slots 40 are formed on the side wall of the bottom plate of the base 1. One ends of the two insertion plates 39 are both fixed on the surface of a pull plate 41. Second screws 42 are inserted at both ends of the pull plate 41. One end of the second screw 42 is fixed at the end of the base 1. A second nut 43 is sleeved and screwed on the other end of the second screw 42. Two second limiting shafts 44 are fixed on the surface of the insertion plate 39. The second limiting shafts 44 are in a "T"-shaped cylinder shape. A first pulley 45 is sleeved on the shaft body of the second limiting shaft 44; A cover 49 is sleeved on the top end of the rotating shaft 17. An exhaust check valve 50 is inserted and fixed on the top plate of the cover 49. Multiple clamping screws are screwed on the side plate of the cover 49. After the cover 49 is sleeved on the top end of the material cylinder 37, the clamping screws penetrate through the side plate of the cover 49 to clamp the material cylinder 37.

[0053] During use, when the material barrel 37 is pushed to the bottom of the rotating shaft 17, the plug plate 39 is inserted into the corresponding slot 40, and the screw rod 42 passes through the pull plate 41, and the nut 43 is screwed to the end of the screw rod 42 and locked. At this time, the material barrel 37 is stably placed under the rotating shaft 17; when the material barrel 37 needs to be moved, the rotating shaft 17 is first pulled out from the top of the material barrel 37, and then the nut 43 is loosened and removed from the screw rod 42, and then the pull plate 41 is pulled and pulled, and the pull plate 41 pulls the plug plate 39 out of the slot 40, and the pulley 45 contacts the ground, pushes the material barrel 37 to support, and pushes the material barrel 37 to slide and transfer; when the dispersing equipment is inverted, the cover 49 is used to receive the residual carbon nanotube conductive slurry adhered to the rotating shaft 17 and the structure on the rotating shaft 17.

[0054] Embodiment 2, based on embodiment 1, proposes a method for using a device for efficiently dispersing carbon nanotube conductive slurry, the method comprising the following steps:

[0055] Install the material barrel, trigger the switch of the electric telescopic rod 2, extend the piston rod, drive the enclosure 3 to rise, and the rotating shaft 17 rises accordingly; place the material barrel 37 directly below the rotating shaft 17, and ensure that the cutter head 18 and the bottom end of the rotating shaft 17 are aligned with the opening of the material barrel 37; control the piston rod of the electric telescopic rod 2 to retract, so that the rotating shaft 17 descends and is inserted into the material barrel 37; fix the material barrel 37 through the plug plate 39 and the slot 40, insert the plug plate 39 into the slot 40 on the side wall of the base 1, penetrate the pull plate 41 with the screw rod 42, and screw the nut 43 to lock it to ensure the stability of the material barrel 37;

[0056] Start dispersion and gas injection, turn on the servo motor 10, drive the pulley 7 through the belt 8 to drive the rotating seat 11 and the rotating shaft 17 to rotate at high speed, and the knife disc 18 shears and disperses the slurry; start the air pump 24, suck external air (or connect high-temperature gas) through the air inlet check valve 16, input it into the hollow ball 21 through the reserved hole 19, and spray air from the diffuser hole 23 to push the slurry to diffuse to the inner wall of the material barrel 37 to enhance the uniformity of dispersion; if heat preservation is required, connect the high-temperature gas to the air inlet check valve 16, and continuously spray it through the diffuser hole 23 to maintain the slurry temperature; the reserved hole 19 can be integrated with an online monitoring probe (such as pH, conductivity sensor) to achieve closed-loop control of the dispersion process (IPC standard GJB 546B);

[0057] Adjust the dispersion structure (blade plate and knife handle), move the blade plate 27 to expand outward with the limiting axis 26 as the axis; tighten the long-handled screw 28 to the screw groove 29 on the side wall of the installation groove 25 to fix the expansion state of the blade plate 27 and increase the dispersion contact area; when the knife handle 32 is activated, loosen the nut 36, pull out the buckle plate 33 along the screw 35, and expose the knife handle 32 in the hole 31; the knife handle 32 cuts the slurry when it rotates with the rotating shaft 17, thereby improving the dispersion efficiency;

[0058] Transfer device and material barrel, invert the enclosure 3, make pulley 2 48 contact the ground; hold the base 1 to push the device to slide, limit shaft 3 47 and pulley 2 48 assist in stable movement; loosen the clamping screw, remove the cover 49 from the top of the material barrel 37; loosen nut 2 43, pull the pull plate 41 to drive the plug plate 39 out of the slot 40, and the material barrel 37 is supported by the pulley 1 45 at the bottom of the leg 38 to promote sliding;

[0059] Cleaning and maintenance: After dispersion is completed, lift the rotating shaft 17 and remove the material barrel 37; remove the cover 49, clean the residual slurry on the surface of the rotating shaft 17, the knife disc 18 and the blade plate 27; check the operating status of the air pump 24 and the servo motor 10 to ensure that the air intake check valve 16 and the exhaust check valve 50 are unobstructed.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for efficiently dispersing carbon nanotube conductive slurry, comprising a base (1), characterized in that: The top surface of the base (1) is fixed with an electric telescopic rod (2), the top end of the piston rod of the electric telescopic rod (2) is fixed with a protective shell (3), the bottom of the protective shell (3) is rotatably connected with a rotating seat (11), the bottom surface of the rotating seat (11) is installed with a rotating shaft (17), the bottom end of the rotating shaft (17) is fixed with a knife disc (18), the surface of the rotating shaft (17) is provided with a reserved hole (19), the surface of the rotating shaft (17) is plugged with a hollow ball (21), and the surface of the hollow ball (21) is provided with an air inlet hole (22) and an air dispersion hole (23) The air inlet (22) is connected to the reserved hole (19), the surface of the rotating shaft (17) is rotatably connected with a blade plate (27), the surface of the blade plate (27) is provided with a through hole (31), the surface of the through hole (31) is fixed with a knife handle (32), the surface of the blade plate (27) is buckled with a buckle plate (33), the top end of the rotating shaft (17) is installed with an air pump (24), the air suction pipe of the air pump (24) is connected to the outside air, the exhaust pipe of the air pump (24) is connected to the reserved hole (19), and the bottom end of the rotating shaft (17) is inserted into the material barrel (37).

2. The device for efficiently dispersing carbon nanotube conductive slurry according to claim 1, characterized in that: The base (1) is a U-shaped plate structure, with traction blocks (4) fixed on both sides of the enclosure shell (3), a sleeve (5) fixed on the bottom surface of the traction block (4), a column (6) inserted at the bottom end of the sleeve (5), and the bottom end of the column (6) fixed to the top surface of the base (1).

3. The device for efficiently dispersing carbon nanotube conductive slurry according to claim 1, characterized in that: The bottom plate of the enclosure (3) is provided with two mounting openings (9), and pulleys (7) are arranged above the two mounting openings (9). The two pulleys (7) are connected by a belt (8). A servo motor (10) is fixed to the bottom surface of the enclosure (3), and the shaft of the servo motor (10) is fixed to the bottom surface of one pulley (7). The rotating seat (11) is a "convex"-shaped cylinder, and the top of the rotating seat (11) is fixed to the bottom surface of the other pulley (7). A bearing (12) is fixed inside the mounting opening (9), and the two bearings (12) are respectively sleeved on the shaft of the servo motor (10) and the top of the rotating seat (11).

4. The device for efficiently dispersing carbon nanotube conductive slurry according to claim 1, characterized in that: A cover plate (13) is inserted into the notch of the enclosure shell (3), and a plurality of connecting plates (14) are fixed on the surface of the cover plate (13). The connecting plates (14) are overlapped on the top surface of the enclosure shell (3), and screws are screwed on the top surface of the connecting plates (14). The screws penetrate the connecting plates (14) and are screwed on the top surface of the enclosure shell (3). Two side grooves (46) are provided on both sides of the enclosure shell (3), and a limiting shaft three (47) is fixed on the surface of the side groove (46). The limiting shaft three (47) is a "T"-shaped cylindrical structure, and a pulley two (48) is sleeved on the shaft body of the limiting shaft three (47).

5. The device for efficiently dispersing carbon nanotube conductive slurry according to claim 4, characterized in that: The rotating shaft (17) is a "T"-shaped cylinder. Two groups of reserved grooves (20) are formed on the surface of the rotating shaft (17). The reserved grooves (20) are arc grooves. The two groups of reserved grooves (20) are symmetrically distributed with respect to the rotating shaft (17). Each group of reserved grooves (20) has a plurality of them, and the plurality of reserved grooves (20) are arranged vertically at equal distances and of equal size. The hollow balls (21) correspond to the reserved grooves (20) one by one, and the hollow balls (21) are fixed in the reserved grooves (20). A storage groove is formed on the bottom surface of the rotating seat (11). The air pump (24) extends into the storage groove. A screw is screwed on the top plate of the rotating shaft (17). After passing through the top plate of the rotating shaft (17), the screw is screwed on the bottom surface of the rotating seat (11). Through holes (15) are formed on the top surface of the rotating seat (11) and the surface of another belt pulley (7). The suction pipe of the air pump (24) passes through the through holes (15). An intake check valve (16) is fixedly inserted on the top surface of the cover plate (13), and the intake check valve (16) is communicated with the suction pipe of the air pump (24).

6. The device for efficiently dispersing carbon nanotube conductive slurry according to claim 1, characterized in that: Installation grooves (25) are formed on both sides of the rotating shaft (17). Each group of installation grooves (25) has a plurality of them. The installation grooves (25) and the hollow balls (21) are distributed alternately. A limiting shaft one (26) is fixed between two parallel side walls of each installation groove (25). The limiting shaft one (26) movably penetrates one end of the blade plate (27). A long handle screw (28) is screwed on the other end of the blade plate (27). The rod length of the long handle screw (28) is greater than the plate length of the blade plate (27). Threaded grooves (29) are formed on the side wall and the bottom surface of the installation groove (25), and the threaded grooves (29) match the long handle screw (28).

7. The device for efficiently dispersing carbon nanotube conductive slurry according to claim 1, characterized in that: A buckle groove (30) is formed on the surface of the base (1). The buckle groove (30) is a "C"-shaped groove. The buckle plate (33) is a "C"-shaped plate-like structure. A jack (34) is formed on the surface of the buckle plate (33). A screw one (35) is inserted into the inside of the jack (34). One end of the screw one (35) is fixed on the surface of the buckle groove (30), and a nut one (36) is sleeved and screwed on the other end of the screw one (35). The handle (32) is a rhombic plate. There are a plurality of handles (32), and the plurality of handles (32) are arranged at equal distances and of equal size along the long side of the through opening (31).

8. The device for efficiently dispersing carbon nanotube conductive slurry according to claim 1, characterized in that: Two groups of legs (38) are fixed to the bottom end of the material cylinder (37). The bottom ends of the two groups of legs (38) are respectively fixed on the surfaces of two insertion plates (39). The insertion plates (39) are slidably connected in the insertion slots (40). The insertion slots (40) are formed on the side wall of the bottom plate of the base (1). One ends of the two insertion plates (39) are both fixed on the surface of the pull plate (41). Screw two (42) is inserted at both ends of the pull plate (41). One end of the screw two (42) is fixed at the end of the base (1), and a nut two (43) is sleeved and screwed on the other end of the screw two (42). Two limiting shafts two (44) are fixed on the surface of the insertion plate (39). The limiting shafts two (44) are "T"-shaped cylinders, and a pulley one (45) is sleeved on the shaft body of the limiting shafts two (44).

9. The device for efficiently dispersing carbon nanotube conductive slurry according to claim 1, characterized in that: The top end of the rotating shaft (17) is sleeved with a sealing cover (49), the top plate of the sealing cover (49) is plugged with an exhaust check valve (50), and the side plates of the sealing cover (49) are screwed with a plurality of clamping screws. After the sealing cover (49) is sleeved on the top end of the material barrel (37), the clamping screws penetrate the side plates of the sealing cover (49) and clamp the material barrel (37).

10. A method for using the device for efficiently dispersing carbon nanotube conductive paste according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Install the material barrel, trigger the switch of the electric telescopic rod (2), extend the piston rod, drive the enclosure (3) to rise, and the rotating shaft (17) rises accordingly; place the material barrel (37) directly below the rotating shaft (17), and ensure that the cutter disc (18) and the bottom end of the rotating shaft (17) are aligned with the opening of the material barrel (37); control the piston rod of the electric telescopic rod (2) to retract, so that the rotating shaft (17) descends and is inserted into the material barrel (37); fix the material barrel (37) by means of the plug plate (39) and the slot (40), insert the plug plate (39) into the slot (40) on the side wall of the base (1), penetrate the pull plate (41) with the second screw rod (42), and screw the second nut (43) to lock it, so as to ensure the stability of the material barrel (37); Start dispersion and gas injection, turn on the servo motor (10), drive the pulley (7) through the belt (8) to synchronously drive, drive the rotating seat (11) and the rotating shaft (17) to rotate at high speed, and the knife disc (18) shears and disperses the slurry; start the air pump (24), suck external air (or connect high-temperature gas) through the air intake check valve (16), input it into the hollow ball (21) through the reserved hole (19), and spray air from the air diffusion hole (23), so as to push the slurry to diffuse toward the inner wall of the material barrel (37) and enhance the dispersion uniformity; if heat preservation is required, connect the high-temperature gas to the air intake check valve (16), and continuously spray it through the air diffusion hole (23) to maintain the slurry temperature; The dispersion structure (blade plate and knife handle) is adjusted, and the blade plate (27) is moved to expand outward with the limiting axis (26) as the axis; the long-handled screw (28) is tightened to the screw groove (29) on the side wall of the installation groove (25) to fix the expanded state of the blade plate (27) and increase the dispersion contact area; when the knife handle (32) is activated, the nut (36) is loosened, and the buckle plate (33) is pulled out along the screw (35) to expose the knife handle (32) in the through hole (31); the knife handle (32) cuts the slurry when rotating with the rotating shaft (17), thereby improving the dispersion efficiency; The transfer device and the material barrel are inverted, and the enclosure (3) is inverted to make the pulley 2 (48) contact the ground; the base (1) is held by hand to push the device to slide, and the limit shaft 3 (47) and the pulley 2 (48) assist in stable movement; the clamping screw is loosened, and the cover (49) is removed from the top of the material barrel (37); the nut 2 (43) is loosened, and the pull plate (41) is pulled to drive the plug plate (39) to disengage from the slot (40), and the material barrel (37) is supported by the pulley 1 (45) at the bottom of the support leg (38) to promote sliding; Cleaning and maintenance: After dispersion is completed, lift the shaft (17) and remove the material barrel (37); remove the cover (49) and clean the residual slurry on the surface of the shaft (17), the blade disc (18) and the blade plate (27); check the operating status of the air pump (24) and the servo motor (10) to ensure that the intake check valve (16) and the exhaust check valve (50) are unobstructed.

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