A drying device for preparing carbon nanotube masterbatch

Abstract

The present invention belongs to the technical field of carbon nanotube preparation, and in particular relates to a drying device for preparing carbon nanotube masterbatch, comprising a drying box, a stirring mechanism being arranged above the right side of the drying box, the lower port of the stirring mechanism being connected to the cutting mechanism through a material guide pipe, the cutting mechanism being supported to the right side of the drying box through an inclined cavity guide plate, a material guiding and spreading mechanism being arranged in the cavity guide plate, a conveying and drying mechanism being arranged in the drying box, the material guiding and spreading mechanism being used for spreading the strip-shaped masterbatch that flows into the cavity guide plate and is cut into the conveying and drying mechanism arranged in the drying box, the present invention can prevent the masterbatch cut by the cutting mechanism from being directly accumulated on the conveying mesh belt of the conveying and drying mechanism through the conduit, thereby not only improving the drying efficiency of the cut masterbatch on the conveying mesh belt, but also preventing the cut masterbatch from adhering to the conveying mesh belt when being dried, thereby improving the preparation efficiency of the carbon nanotube masterbatch.

Description

Technical Field

[0001] The invention belongs to the technical field of carbon nanotube preparation, and in particular relates to a drying device for preparing carbon nanotube masterbatch. Background Art

[0002] Carbon nanotubes (CNTs) are a type of nanomaterial composed of a two-dimensional hexagonal lattice of carbon atoms, bent and bonded in one direction to form a hollow cylinder. They are an allotrope of carbon, intermediate between fullerenes and graphene. They are prepared as masterbatches, which are then concentrated into a paste and discharged. After the masterbatch is cut, it needs to be dried before it can be collected and used.

[0003] Although the existing drying device can also dry the cut masterbatch, the cut carbon nanotube masterbatch is mostly in strip shape, and the cut masterbatch is directly dropped from the conduit fixed below the cutting box to the conveyor belt of the drying box, and then heated and dried by the hot air blown out by the drying rack. The direct drop through the conduit easily causes the masterbatch to accumulate on the conveyor belt, and the cut masterbatch cannot be spread flat on the conveyor belt, which not only affects the drying efficiency of the cut masterbatch, but also easily causes the accumulated masterbatch to stick together during drying, thereby affecting the quality of the carbon nanotube masterbatch preparation. Summary of the Invention

[0004] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The present invention is a drying device for preparing carbon nanotube masterbatch, comprising a drying box, a stirring mechanism is arranged above the right side of the drying box, the lower port of the stirring mechanism is connected to the cutting mechanism through a material guide pipe, the cutting mechanism is supported to the right side of the drying box through an inclined cavity guide plate, a material guide and flattening mechanism is arranged in the cavity guide plate, and a conveying and drying mechanism is arranged in the drying box, the material guide and flattening mechanism is used to flatly introduce the strip-shaped masterbatch that flows into the cavity guide plate for cutting into the conveying and drying mechanism arranged in the drying box.

[0006] Furthermore, the material guiding and spreading mechanism includes a guide plate, a diverter plate, an elastic membrane, a sliding support block, a connecting plate, a telescopic cylinder and a fixed block; a material guiding cavity is obliquely opened inside the cavity guide plate, and a sliding groove is obliquely opened on the upper surface of the material guiding cavity near the left port, a guide plate is slidingly set inside the sliding groove, and the left end face of the guide plate slides out of the material guiding cavity, and the right end face of the guide plate is non-contacted with the groove wall of the sliding groove; a plurality of kneading grooves are opened between the upper surface of the guide plate and the lower cavity surface of the material guiding cavity, and the bottoms of the plurality of kneading grooves are flush with the upper surface of the guide plate; one end face of the elastic membrane is connected to The cam is connected to the guide plate and the guide plate, and the other end surface of the elastic membrane is connected to the groove wall of the sliding groove, and the upper surface of the elastic membrane is flush with the guide plate and the lower cavity surface of the material guide cavity; the sliding groove is away from the lower groove wall of the left port of the material guide cavity. There are multiple through sliding guide grooves in the front and rear horizontal directions, and a sliding support block is slidably arranged in each of the sliding guide grooves, and the lower end surfaces of the multiple sliding support blocks extend out of the lower surface of the cavity guide plate; the connecting plate is fixedly connected to the side wall surfaces of the multiple extended sliding support blocks; the fixed sections of at least two of the telescopic cylinders are fixed on the inclined lower surface of the cavity guide plate through two fixed blocks, and the piston rod end faces of at least two telescopic cylinders are connected to the side faces of the connecting plate.

[0007] Furthermore, a buffer cavity strip is connected between the groove wall of the sliding groove and the end surface of the guide plate, and the buffer cavity strip is located on the lower surface of the elastic membrane.

[0008] Furthermore, an air collecting pipe is fixed in the front and rear horizontal directions inside the guide plate, and the air collecting pipe is connected to the buffer cavity strip through an air guide hose. A plurality of jet holes are inclinedly opened on the upper tube wall of the air collecting pipe, and the upper end openings of the plurality of jet holes are located on the upper surface of the guide plate and face the side of the diverter plate. A one-way valve is provided on both the air guide hose and the buffer cavity strip.

[0009] Furthermore, the conveying and drying mechanism includes a rotating shaft, a rotating roller, a conveyor belt, an elastic mesh plate, a discharge plate and a cover drying component. The two rotating shafts are rotatably arranged on the front and rear walls of the drying box, and a rotating roller is sleeved on each rotating shaft. A conveyor belt is sleeved between the two rotating rollers. A plurality of mounting cavities are equidistantly provided on the conveyor belt, and an elastic mesh plate is fixedly installed in each mounting cavity. A discharge trough is provided on the left wall of the drying box, and a discharge plate is obliquely fixed in the discharge trough. The inclined upper end face of the discharge plate is in contact with the outer side face of the rotating conveyor belt. A cover drying component is provided in the drying box, and the cover drying component is covered on the elastic mesh plate for drying the flattened granular masterbatch.

[0010] Furthermore, an air jet is provided inside the left end face of the diverter plate, and the air jet is connected to the buffer cavity strip through an air distribution pipe. An expansion membrane is provided at the left end slot of each kneading groove. The lower wall surfaces around the expansion membrane are sealed with the groove wall of the kneading groove, and the middle part of the expansion membrane is in a suspended state. A plurality of air guide holes opened on the upper end wall of the air jet are connected to the middle position of the expansion membrane, and an air control valve is also provided on the air distribution pipe.

[0011] Furthermore, the cover and drying assembly includes an upper sealing cover, a heat conducting pipe, a supporting cylinder, a connecting ear plate, a lower fitting cover and an exhaust pipe. The upper sealing cover is arranged above the conveyor belt, and the lower end of the upper sealing cover is open. The upper surface of the upper sealing cover is connected with a heat conducting pipe, and the heat conducting pipe slides out of the upper surface of the drying box and is connected with an air inlet pipe. At least two supporting cylinders are fixed to the upper surface of the drying box, and the outer wall surface of the heat conducting pipe is fixed with a connecting ear plate, and the upper surface of the connecting ear plate is connected to the piston rod end faces of the two supporting cylinders. The lower fitting cover is arranged between two rotating rollers, and the upper end open surface of the lower fitting cover is fitted with the lower surface of the upper conveyor belt. The exhaust pipe is connected to the lower fitting cover, and the pipe mouth of the exhaust pipe extends out of the drying box.

[0012] Furthermore, a vibration motor is fixed in the lower fitting cover, and the vibration surface of the vibration motor is slidably fitted to the lower surface of the elastic mesh plate.

[0013] The present invention has the following beneficial effects:

[0014] The present invention sets a material guide and spreading mechanism in the cavity guide plate, and controls the guide plate to slide back and forth frequently in the material guide cavity of the cavity guide plate. At this time, the diverter plate will slide back and forth in the sliding groove driven by multiple sliding blocks. At this time, the masterbatch located in the material guide cavity will enter the multiple kneading grooves arranged front and back on the diverter plate in sequence. At this time, the diverter plate also slides back and forth in the material guide cavity synchronously, and the masterbatch entering the kneading groove will be kneaded into granular shape by the reciprocating sliding diverter plate. At this time, the granular masterbatch kneaded at the left end notch of the multiple kneading grooves will be smoothly spread into the conveying and drying mechanism under the shaking of the guide plate, thereby preventing the masterbatch cut by the cutting mechanism from directly accumulating onto the conveying mesh belt of the conveying and drying mechanism through the conduit, thereby not only improving the drying efficiency of the cut masterbatch on the conveying mesh belt, but also preventing the cut masterbatch from adhering to the conveying mesh belt when drying on the conveying mesh belt, thereby improving the preparation efficiency of carbon nanotube masterbatch.

[0015] The present invention cooperates with the continuously rotating conveyor belt and the upper sealing cover that slides up and down. The rotation of the conveyor belt can drive the elastic mesh plate to move to the bottom of the inclined guide plate, so that the masterbatch kneaded in multiple kneading grooves falls and is spread flat on the slowly moving elastic mesh plate. When the elastic mesh plate moves to the bottom of the upper sealing cover, the upper sealing cover descends to cover and seal the elastic mesh plate, so that the hot air entering the upper sealing cover will only flow at the elastic mesh plate and contact the spread masterbatch. Not only will it not diffuse into the drying box over a large area, and thus will not cause waste of heat from the hot air, but it will also shorten the drying time of the masterbatch spread on the elastic mesh plate, thereby further improving the efficiency of carbon nanotube masterbatch preparation and drying.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 Schematic diagram of the overall structure of an embodiment of the present disclosure;

[0019] Figure 2 This is a schematic structural diagram of a cavity guide plate according to an embodiment of the present disclosure;

[0020] Figure 3 This is a structural diagram of the conveying and drying mechanism according to an embodiment of the present disclosure;

[0021] Figure 4 is a cross-sectional view of a cavity guide plate according to an embodiment of the present disclosure;

[0022] Figure 5 For the embodiment of the present disclosure Figure 4 A partial enlarged view of point A in the middle.

[0023] In the figure: 1, drying box; 2, stirring mechanism; 3, cutting mechanism; 4, cavity guide plate; 41, material guide cavity; 42, sliding groove; 43, sliding guide groove; 5, material guide and flattening mechanism; 51, guide plate; 52, diverter plate; 521, kneading groove; 53, elastic membrane; 54, sliding support block; 55, connecting plate; 56, telescopic cylinder; 57, fixed block; 6, conveying and drying mechanism; 61, rotating shaft; 62, Rotating roller; 63, conveyor belt; 64, elastic mesh plate; 65, discharge plate; 7, cover and drying assembly; 71, upper sealing cover; 72, heat pipe; 73, supporting cylinder; 74, connecting ear plate; 75, lower fitting cover; 76, exhaust pipe; 8, buffer cavity strip; 9, gas collecting pipe; 91, air jet hole; 10, air guide hose; 11, air jet pipe; 111, air guide hole; 12, air distribution pipe; 13, expansion membrane. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 5 As shown, the present invention is a drying device for preparing carbon nanotube masterbatch, comprising a drying box 1, a stirring mechanism 2 is provided above the right side of the drying box 1, the lower port of the stirring mechanism 2 is connected to the cutting mechanism 3 through a material guide pipe, the cutting mechanism 3 is supported to the right side of the drying box 1 by an inclined cavity guide plate 4, a material guide and flattening mechanism 5 is provided in the cavity guide plate 4, and a conveying and drying mechanism 6 is provided in the drying box 1, the material guide and flattening mechanism 5 is used to flatly guide the strip-shaped masterbatch cut into the cavity guide plate 4 into the conveying and drying mechanism 6 provided in the drying box 1;

[0026] In the scheme designed by the present invention, the present invention sets an inclined cavity guide plate 4 below the cutting mechanism 3, so that the masterbatch cut by the cutting mechanism 3 can be flatly introduced into the cavity guide plate 4, and then the masterbatch falling into the cavity guide plate 4 is flatly introduced into the conveying and drying mechanism 6 set in the drying box 1 in a sieving manner in sequence through the material guiding and flattening mechanism 5 set in the cavity guide plate 4, and then the conveying and drying mechanism 6 continuously rotates to flatly convey the masterbatch on the material guiding and flattening mechanism 5, and then performs drying treatment. The dried masterbatch will be discharged and collected through the discharge trough opened on the left side of the drying box 1, so that the cut masterbatch will not be excessively accumulated on the conveying mesh belt, resulting in the masterbatch on the conveying mesh belt not only being unable to be fully dried, but also causing the masterbatch to stick to each other during drying, thereby affecting the quality and efficiency of the preparation of carbon nanotube masterbatch.

[0027] As an embodiment of the present invention, the material guiding and spreading mechanism 5 includes a guide plate 51, a diverter plate 52, an elastic membrane 53, a sliding support block 54, a connecting plate 55, a telescopic cylinder 56 and a fixed block 57; a material guiding cavity 41 is obliquely opened inside the cavity guide plate 4, and a sliding groove 42 is obliquely opened on the upper surface of the material guiding cavity 41 near the left port, a guide plate 51 is slidingly set inside the sliding groove 42, and the left end face of the guide plate 51 slides out of the material guiding cavity 41, and the right end face of the guide plate 51 is non-contacted with the groove wall of the sliding groove 42; the upper surface of the guide plate 51 near the left port of the material guiding cavity 41 is fixedly set, and a plurality of kneading grooves 521 are opened between the upper surface of the guide plate 51 and the lower cavity surface of the material guiding cavity 41, and the bottoms of the plurality of kneading grooves 521 are flush with the upper surface of the guide plate 51; the elastic membrane 53 includes a guide plate 51 and a diverter plate 521, and a plurality of kneading grooves 521 are provided between the upper surface of the guide plate 51 and the lower cavity surface of the material guiding cavity 41, and the bottoms of the plurality of kneading grooves 521 are flush with the upper surface of the guide plate 51; One end face of the elastic membrane 53 is connected to the inclined end face of the guide plate 51, and the other end face of the elastic membrane 53 is connected to the groove wall of the sliding groove 42, and the upper surface of the elastic membrane 53 is flush with the guide plate 51 and the lower cavity surface of the guide cavity 41; the sliding groove 42 is provided with a plurality of through sliding guide grooves 43 in the horizontal direction of the lower groove wall away from the left end of the guide cavity 41, and a sliding support block 54 is slidably provided in each of the sliding guide grooves 43, and the lower end faces of the plurality of sliding support blocks 54 extend out of the lower surface of the cavity guide plate 4; the connecting plate 55 is fixedly connected to the side wall surfaces of the plurality of extended sliding support blocks 54; the fixed sections of at least two of the telescopic cylinders 56 are fixed to the inclined lower surface of the cavity guide plate 4 by two fixing blocks 57, and the piston rod end faces of at least two of the telescopic cylinders 56 are connected to the side faces of the connecting plate 55;

[0028] In the scheme designed by the present invention, before the masterbatch cut by the cutting mechanism 3 enters the guide chamber 41, the control system of the drying device controls the piston rods of at least two telescopic cylinders 56 to extend and retract reciprocally, so that the piston rods 56 drive the multiple sliding blocks 54 to frequently reciprocate in the multiple sliding guide grooves 43 through the connecting plate 55, and at this time the diverter plate 52 will slide back and forth in the sliding groove 42 driven by the multiple sliding blocks 54, and when the cut masterbatch slides downward in the guide chamber 41, the masterbatch located in the guide chamber 41 will enter the multiple kneading grooves 521 arranged front and back on the diverter plate 52 in sequence, and the reciprocating sliding of the guide plate 51 in the sliding groove 42 will drive the diverter plate 52 to slide back and forth in the guide chamber 41 synchronously, and the masterbatch entering the kneading groove 521 will be kneaded into granular shape by the reciprocating sliding diverter plate 52, and when the guide plate 51 is moved by the activity of the telescopic cylinder 56 When the plug rod contracts and extends out of the left end of the material guide chamber 41, the granular masterbatch kneaded at the left end slot of the multiple kneading grooves 521 will be smoothly spread into the conveying and drying mechanism 6 under the shaking of the guide plate 51, thereby preventing the masterbatch cut by the cutting mechanism 3 from directly accumulating onto the conveying mesh belt of the conveying and drying mechanism 6 through the conduit, thereby not only improving the drying efficiency of the cut masterbatch on the conveying mesh belt, but also preventing the cut masterbatch from adhering to the conveying mesh belt when drying on the conveying mesh belt, thereby improving the preparation efficiency of the carbon nanotube masterbatch. At the same time, the guide plate 51 drives the diverter plate 52 to slide back and forth in the material guide chamber 41, which not only spreads the carbon nanotube masterbatch onto the conveying mesh belt, but also kneads the cut masterbatch to form granules, which not only prevents the cut masterbatch from being blocked in the material guide chamber 41, but also increases the scope of use of the carbon nanotube masterbatch after preparation.

[0029] As an embodiment of the present invention, a buffer cavity strip 8 is connected between the groove wall of the sliding groove 42 and the end face of the guide plate 51, and the buffer cavity strip 8 is located on the lower surface of the elastic membrane 53; in the design scheme of the present invention, an elastic membrane 53 is provided between the inclined upper end face of the guide plate 51 and the groove wall of the sliding groove 42, which can prevent the guide plate 51 from sliding downwardly and forming a buffer gap between the inclined upper end face of the guide plate 51 and the sliding groove 42, thereby preventing the cut masterbatch from entering. The buffer gap not only affects the reciprocating sliding of the guide plate 51 in the sliding groove 42, but also affects the oblique flow effect of the cut masterbatch in the guide cavity 41. The buffer cavity strip 8 is provided in the buffer gap to prevent the guide plate 51 from sliding upward in the sliding groove 42 for too long and colliding with the groove wall of the sliding groove 42, which may easily cause damage to the inclined upper end face of the guide plate 51 or the groove wall of the sliding groove 42, thereby affecting the guiding effect of the cavity guide plate 4 on the cut masterbatch.

[0030] As an embodiment of the present invention, an air collecting pipe 9 is fixed in the front and rear horizontal directions inside the guide plate 51. The air collecting pipe 9 is connected to the buffer cavity strip 8 through an air guide hose 10. A plurality of air injection holes 91 are obliquely opened on the upper tube wall of the air collecting pipe 9. The upper end openings of the plurality of air injection holes 91 are located on the upper surface of the guide plate 51 and face the side of the diverter plate 52. Both the air guide hose 10 and the buffer cavity strip 8 are provided with a one-way valve.

[0031] In the scheme designed by the present invention, when the guide plate 51 slides back and forth continuously in the sliding groove 42 to squeeze the buffer cavity strip 8, the gas in the buffer cavity strip 8 will enter the gas collecting pipe 9 through the gas guide hose 10 and the one-way valve, and then be sprayed into the guide cavity 41 through the multiple jet holes 91 opened at an angle. Since the orifices of the multiple jet holes 91 are inclined toward the diverter plate 52, the ejected gas will generate a small amount of thrust to push the masterbatch located at the connection between the diverter plate 52 and the guide plate 51 into the kneading groove 521, thereby preventing the cut masterbatch from sliding onto the guide plate 5 1, a large number of masterbatches are blocked at the inclined upper notch of the kneading groove 521, thereby affecting the diverter plate 52 to guide and knead the masterbatches falling in the guide cavity 41. When the guide plate 51 slides downward, the buffer cavity strip 8 will be stretched and restored, and the one-way valve provided on the buffer cavity strip 8 will replenish the external gas into the buffer cavity strip 8, and the one-way valve on the air guide hose 10 will only pass the compressed gas in the buffer cavity strip 8 into the gas collecting pipe 9, and the gas in the gas collecting pipe 9 will not flow back into the buffer cavity strip 8 when the buffer cavity strip 8 is stretched and restored.

[0032] As an embodiment of the present invention, the conveying and drying mechanism 6 includes a rotating shaft 61, a rotating roller 62, a conveyor belt 63, an elastic mesh plate 64, a discharge plate 65 and a cover drying component 7. The two rotating shafts 61 are rotatably arranged on the front and rear walls of the drying box 1, and each rotating shaft 61 is sleeved with a rotating roller 62, and a conveyor belt 63 is sleeved between the two rotating rollers 62. A plurality of mounting cavities are equidistantly provided on the conveyor belt 63, and an elastic mesh plate 64 is fixedly installed in each mounting cavity. A discharge trough is provided on the left side wall of the drying box 1, and a discharge plate 65 is obliquely fixed in the discharge trough, and the inclined upper end surface of the discharge plate 65 is in contact with the outer side surface of the rotating conveyor belt 63. A cover drying component 7 is provided in the drying box 1, and the cover drying component 7 is covered on the elastic mesh plate 64 for drying the flattened granular masterbatch;

[0033] In the scheme designed by the present invention, when the guide plate 51 slides back and forth frequently in the sliding groove 42 to guide the cut masterbatch into the kneading groove 521, and when it is flattened on the elastic mesh plate 64 through multiple side-by-side kneading grooves 521, the cover drying component 7 is controlled to disengage from the cover of the elastic mesh plate 64, and then the output shaft of the driving motor fixed outside the drying box 1 is operated to drive the conveyor belt 63 to rotate counterclockwise in the drying box 1 through the rotating shaft 61 and the rotating roller 62. When the conveyor belt 63 is on the The elastic mesh plate 64 rotates to the bottom of the extended guide plate 51, and there is a small gap between the upper surface of the elastic mesh plate 64 and the inclined lower end surface of the reciprocating guide plate 51. Therefore, the reciprocating guide plate 51 will spread the masterbatch of the rubbing particles that slides to the downward inclined notch of the kneading groove 521 onto the elastic mesh plate 64. At the same time, with the slow rotation of the conveyor belt 63, the masterbatch shaken off by the rubbing particles can be evenly spread on the upper surface of the elastic mesh plate 64. When the elastic mesh plate 64 rotates away from the bottom of the guide plate 51, the masterbatch can be evenly spread on the upper surface of the elastic mesh plate 64. After that, the multiple telescopic cylinders 56 stop working, causing the guide plate 51 to stop sliding back and forth, and then as the conveyor belt 63 continues to rotate, the elastic mesh plate 64 will be transferred to the bottom of the covering drying assembly 7. At this time, the conveyor belt 63 stops rotating, and then the covering drying assembly 7 is sealed and covered on the elastic mesh plate 64, thereby drying the masterbatch spread on the elastic mesh plate 64. When the covering drying assembly 7 completes drying the masterbatch on the elastic mesh plate 64, the covering drying assembly 7 disengages from the covering of the elastic mesh plate 64, and the conveyor belt 63 continues to rotate to transport the dried masterbatch on the elastic mesh plate 64 to the left side of the drying box 1. At this time, the other elastic mesh plates 64 on the conveyor belt 63 will be transferred to the bottom of the guide plate 51. At this time, the guide plate 51 continues to slide back and forth to evenly spread the kneaded masterbatch on the idle elastic mesh plate 64, and the dried masterbatch will be scraped off from the elastic mesh plate 64 by the discharge plate 65, and then discharged through the discharge chute to the outside of the left side of the drying box 1 for collection by the collection frame.

[0034] As an embodiment of the present invention, an air jet pipe 11 is provided inside the left end surface of the diverter plate 52, and the air jet pipe 11 is connected to the buffer cavity strip 8 through an air distribution pipe 12. An expansion membrane 13 is provided at the left end notch of each kneading groove 521. The lower wall surfaces of the expansion membrane 13 are sealed with the groove wall of the kneading groove 521, and the middle part of the expansion membrane 13 is suspended. A plurality of air guide holes 111 are provided on the upper end wall of the air jet pipe 11 and are connected to the middle position of the expansion membrane 13. An air control valve is also provided on the air distribution pipe 12.

[0035] In the scheme designed by the present invention, when the elastic mesh plate 64 is about to be separated from the lower end surface of the guide plate 51 by the conveyor belt 63, in order to prevent the kneaded masterbatch located at the downwardly inclined notches of the multiple kneading grooves 521 from falling onto the upper surface of the conveyor belt 63, it is necessary to first control the one-way valve on the air guide hose 10 to be closed. At this time, the piston rod of the telescopic cylinder 56 can be controlled to extend so that it pushes the guide plate 51 to slide upward in the sliding groove 42 to squeeze the buffer cavity strip 8. Since the air guide hose 10 and the air distribution pipe 12 The gas in the compressed buffer cavity strip 8 will enter the air injection pipe 11 through the air distribution pipe 12 and the air control valve, and the gas entering the air injection pipe 11 will be injected into the middle position of the suspended expansion membrane 13 through multiple air guide holes 111, so that the expansion membrane 13 can expand in the notch of the kneading groove 521. Therefore, when the guide plate 51 drives the diverter plate 52 to shrink into the guide cavity 41, the expanded multiple expansion membranes 13 will seal the notches of the multiple kneading grooves 521. The guide plate 51 is blocked, thereby preventing part of the masterbatch at the notch of the kneading groove 521 from falling onto the upper surface of the conveyor belt 63 due to the inclined setting of the guide chamber 41 when the guide plate 51 stops sliding, instead of falling onto the upper surface of the elastic mesh plate 64, thereby causing part of the masterbatch falling on the upper surface of the conveyor belt 63 to be unable to pass through the cover drying component 7 for drying operation, thereby affecting the quality of the carbon nanotube masterbatch drying; when the guide plate 51 is required to slide back and forth in the sliding groove 42, the guide plate 51 slides downward and extends out of the guide chamber 41 to The buffer cavity strip 8 is stretched. At this time, the stretched buffer cavity strip 8 will draw back the gas between the expanded expansion membrane 13 through the air distribution pipe 12 and the air control valve. At the same time, the one-way valve on the buffer cavity strip 8 is controlled to open according to the recovery of the suction amount of the buffer cavity strip 8, so that the expansion membrane 13 shrinks and fits into the notch of the kneading groove 521. Then the air control valve on the air distribution pipe 12 is closed, and the one-way valve of the air guide hose 10 is opened. Then the guide plate 51 slides back and forth in the sliding groove 42 to continue to knead the cut masterbatch and guide the material flatly.

[0036] As an embodiment of the present invention, the cover and drying assembly 7 includes an upper sealing cover 71, a heat conducting pipe 72, a supporting cylinder 73, a connecting ear plate 74, a lower bonding cover 75 and an exhaust pipe 76. The upper sealing cover 71 is arranged above the conveyor belt 63, and the lower end of the upper sealing cover 71 is in an open state. The upper surface of the upper sealing cover 71 is connected to the heat conducting pipe 72, and the heat conducting pipe 72 slides out of the upper surface of the drying box 1 and is connected to the air inlet pipe. At least two supporting cylinders 73 are fixed to the upper surface of the drying box 1. The outer wall surface of the heat conducting pipe 72 is fixed with a connecting ear plate 74 sleeved thereon, and the upper surface of the connecting ear plate 74 is connected to the piston rod end surfaces of the two supporting cylinders 73. The lower bonding cover 75 is arranged between the two rotating rollers 62, and the upper end open surface of the lower bonding cover 75 is bonded to the lower surface of the upper conveyor belt 63. The exhaust pipe 76 is connected to the lower bonding cover 75, and the pipe mouth of the exhaust pipe 76 extends out of the drying box 1;

[0037] The upper sealing cover 71 is closed by the air blower 72 and the upper sealing cover 71 is closed by the air blower 72. The hot air will then be discharged through the exhaust pipe 76 and then adhered to the upper and lower surfaces of the conveyor belt 63 through the upper sealing cover 71 and the lower bonding cover 75, so that the elastic mesh plate 64 is located in the cover body. Therefore, the hot air entering the upper sealing cover 71 will only flow at the elastic mesh plate 64 and contact the laid masterbatch. Not only will it not diffuse into the drying box 1 over a large area, and thus will not cause heat waste of the hot air, but it will also shorten the drying time of the masterbatch laid on the elastic mesh plate 64, thereby further improving the efficiency of carbon nanotube masterbatch preparation and drying; when the masterbatch laid on the elastic mesh plate 64 is dried to the required drying degree, the injection of hot air into the heat conduction pipe 72 is stopped at this time, and the piston rod of the supporting cylinder 73 is controlled to contract, so that it drives the upper sealing cover 71 to detach from the upper surface of the conveyor belt 63 through the heat conduction pipe 72, and then the conveyor belt 63 is continued to be controlled to rotate, so that it drives the dried masterbatch to be transferred to the discharge plate 65 for discharge.

[0038] As an embodiment of the present invention, a vibration motor is fixed in the lower fitting cover 75, and the vibration surface of the vibration motor is slidably fitted to the lower surface of the elastic mesh plate 64; in the design scheme of the present invention, in order to prevent the flat masterbatch from adhering to the elastic mesh plate 64 during drying, the vibration motor arranged in the lower fitting cover 75 can be controlled to work, so that it vibrates the elastic mesh plate 64 located at the cover mouth of the lower fitting cover 75, so that the elastic mesh plate 64 can be shaken between the upper sealing cover 71 and the lower fitting cover 75, thereby preventing the masterbatch flattened on the elastic mesh plate 64 from adhering to the elastic mesh plate 64 during drying, thereby affecting the detachment and discharge of the dried masterbatch from the elastic mesh plate 64.

[0039] Working principle:

[0040] When the mother particles cut by the cutting mechanism 3 enter the guide chamber 41, the control system of the drying device controls the piston rods of at least two telescopic cylinders 56 to extend and retract reciprocally, so that the piston rods drive the multiple sliding blocks 54 to frequently reciprocate in the multiple sliding guide grooves 43 through the connecting plate 55. At this time, the diverter plate 52 will slide back and forth in the sliding groove 42 driven by the multiple sliding blocks 54. When the cut mother particles slide downward in the guide chamber 41, the mother particles in the guide chamber 41 will enter the multiple kneading plates arranged front and back on the diverter plate 52 in sequence. The guide plate 51 slides back and forth in the sliding groove 42, which drives the diverter plate 52 to slide back and forth in the guide cavity 41 synchronously. The masterbatch entering the kneading groove 521 will be kneaded into granular shape by the reciprocating diverter plate 52. When the guide plate 51 extends out of the left end of the guide cavity 41 under the contraction of the piston rod of the telescopic cylinder 56, the granular masterbatch kneaded at the left end of the multiple kneading grooves 521 will be smoothly spread onto the elastic mesh plate 64 under the shaking of the guide plate 51, and at the same time, with the slow rotation of the conveyor belt 63, the kneaded masterbatch The shaken masterbatch can be evenly spread on the upper surface of the elastic mesh plate 64. When the elastic mesh plate 64 rotates and detaches from the bottom of the guide plate 51, the multiple telescopic cylinders 56 stop working, causing the guide plate 51 to stop sliding back and forth. Then, as the conveyor belt 63 continues to rotate, the elastic mesh plate 64 is transferred to the bottom of the cover drying component 7. At this time, the conveyor belt 63 stops rotating, and then the cover drying component 7 is sealed and covered on the elastic mesh plate 64, thereby realizing the drying of the masterbatch spread on the elastic mesh plate 64. When the cover drying component 7 closes the masterbatch on the elastic mesh plate 64, the masterbatch After the drying is completed, the covering drying component 7 is separated from the covering of the elastic mesh plate 64, and the conveyor belt 63 continues to rotate to transport the dried masterbatch on the elastic mesh plate 64 to the left side of the drying box 1. At this time, the other elastic mesh plates 64 on the conveyor belt 63 will be transferred to the bottom of the guide plate 51. At this time, the guide plate 51 continues to slide back and forth to evenly spread the kneaded masterbatch on the idle elastic mesh plate 64, and the dried masterbatch will be scraped off from the elastic mesh plate 64 by the discharge plate 65, and then discharged through the discharge chute to the outside of the left side of the drying box 1 for collection by the collection frame.

[0041] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A drying device for preparing carbon nanotube masterbatch, comprising a drying box (1), characterized in that: A stirring mechanism (2) is provided above the right side of the drying box (1), the lower port of the stirring mechanism (2) is connected to the cutting mechanism (3) through a material guide pipe, the cutting mechanism (3) is supported to the right side of the drying box (1) through an inclined cavity guide plate (4), a material guide and flattening mechanism (5) is provided in the cavity guide plate (4), and a conveying and drying mechanism (6) is provided in the drying box (1), the material guide and flattening mechanism (5) is used to flatten the strip-shaped masterbatch cut into the cavity guide plate (4) and introduce it into the conveying and drying mechanism (6) provided in the drying box (1); The material guiding and spreading mechanism (5) comprises a guide plate (51), a diverter plate (52), an elastic membrane (53), a sliding support block (54), a connecting plate (55), a telescopic cylinder (56) and a fixed block (57); A guide plate (51), wherein a guide cavity (41) is obliquely opened inside the cavity guide plate (4), and a sliding groove (42) is obliquely opened on the upper surface of the guide cavity (41) near the left port, and a guide plate (51) is slidingly arranged inside the sliding groove (42), and the left end surface of the guide plate (51) slides out of the guide cavity (41), and the right end surface of the guide plate (51) is arranged in a non-contact manner with the groove wall of the sliding groove (42); A diverter plate (52) is fixedly arranged on the upper surface of the guide plate (51) near the left end of the material guide cavity (41), and a plurality of kneading grooves (521) are provided between the upper surface of the guide plate (51) and the lower cavity surface of the material guide cavity (41), and the bottoms of the plurality of kneading grooves (521) are flush with the upper surface of the guide plate (51); an elastic membrane (53), wherein one end surface of the elastic membrane (53) is connected to the inclined end surface of the guide plate (51), and the other end surface of the elastic membrane (53) is connected to the groove wall of the sliding groove (42), and the upper surface of the elastic membrane (53) is flush with the guide plate (51) and the lower cavity surface of the material guide cavity (41); A sliding support block (54) is provided on the lower groove wall of the sliding groove (42) away from the left end of the material guide cavity (41) in the horizontal direction. A plurality of through sliding guide grooves (43) are provided in each of the sliding guide grooves (43) for sliding. The lower end surfaces of the plurality of sliding support blocks (54) extend out of the lower surface of the cavity guide plate (4).

2. A drying device for preparing carbon nanotube masterbatch according to claim 1, characterized in that: A connecting plate (55) fixedly connected to the side wall surfaces of the plurality of protruding sliding support blocks (54); The telescopic cylinder (56) has fixed sections of at least two of the telescopic cylinders (56) fixed on the inclined lower surface of the cavity guide plate (4) via two fixing blocks (57), and the piston rod end surfaces of the at least two telescopic cylinders (56) are connected to the side surface of the connecting plate (55).

3. The drying device for preparing carbon nanotube masterbatch according to claim 1, characterized in that: A buffer cavity strip (8) is connected between the groove wall of the sliding groove (42) and the end surface of the guide plate (51), and the buffer cavity strip (8) is located on the lower surface of the elastic membrane (53).

4. A drying device for preparing carbon nanotube masterbatch according to claim 3, characterized in that: An air collecting pipe (9) is fixed in the front and rear horizontal directions inside the guide plate (51), and the air collecting pipe (9) is connected to the buffer cavity strip (8) through an air guide hose (10). The upper tube wall of the air collecting pipe (9) is inclined to open a plurality of air injection holes (91), and the upper end openings of the plurality of air injection holes (91) are located on the upper surface of the guide plate (51) and face the side of the diverter plate (52). Both the air guide hose (10) and the buffer cavity strip (8) are provided with a one-way valve.

5. The drying device for preparing carbon nanotube masterbatch according to claim 1, characterized in that: The conveying and drying mechanism (6) comprises a rotating shaft (61), a rotating roller (62), a conveyor belt (63), an elastic mesh plate (64), a discharge plate (65) and a cover drying assembly (7), wherein the two rotating shafts (61) are rotatably arranged on the front and rear walls of the drying box (1), and each rotating shaft (61) is sleeved with a rotating roller (62), and a conveyor belt (63) is sleeved between the two rotating rollers (62), and a plurality of mounting cavities are equidistantly provided on the conveyor belt (63), and an elastic mesh plate (64) is fixedly installed in each mounting cavity, a discharge trough is provided on the left wall of the drying box (1), and a discharge plate (65) is obliquely fixed in the discharge trough, and the oblique upper end surface of the discharge plate (65) is in contact with the outer side surface of the rotating conveyor belt (63), and a cover drying assembly (7) is provided in the drying box (1), and the cover drying assembly (7) is sleeved on the elastic mesh plate (64) for drying the flattened granular masterbatch.

6. The drying device for preparing carbon nanotube masterbatch according to claim 5, characterized in that: An air jet (11) is provided inside the left end face of the diverter plate (52), and the air jet (11) is connected to the buffer cavity strip (8) through the air distribution pipe (12). An expansion membrane (13) is provided at the left end notch of each kneading groove (521). The lower wall surfaces around the expansion membrane (13) are sealed with the groove wall of the kneading groove (521), and the middle part of the expansion membrane (13) is in a suspended state. A plurality of air guide holes (111) are opened on the upper end wall of the air jet pipe (11) and are connected to the middle position of the expansion membrane (13). An air control valve is also provided on the air distribution pipe (12).

7. The drying device for preparing carbon nanotube masterbatch according to claim 5, characterized in that: The cover drying assembly (7) includes an upper sealing cover (71), a heat conducting pipe (72), a supporting cylinder (73), a connecting ear plate (74), a lower fitting cover (75) and an exhaust pipe (76). The upper sealing cover (71) is arranged above the conveyor belt (63), and the lower end of the upper sealing cover (71) is in an open state. The upper surface of the upper sealing cover (71) is connected to the heat conducting pipe (72), and the heat conducting pipe (72) slides out of the upper surface of the drying box (1) and is connected to the air inlet pipe. The upper surface of the drying box (1) is fixed There are at least two supporting cylinders (73), the outer wall surface of the heat conducting pipe (72) is fixed with a connecting ear plate (74) sleeved thereon, and the upper surface of the connecting ear plate (74) is connected to the piston rod end surfaces of the two supporting cylinders (73), the lower laminating cover (75) is arranged between the two rotating rollers (62), and the upper end open surface of the lower laminating cover (75) is in contact with the lower surface of the upper conveyor belt (63), the exhaust pipe (76) is connected to the lower laminating cover (75), and the pipe mouth of the exhaust pipe (76) extends out of the drying box (1).

8. The drying device for preparing carbon nanotube masterbatch according to claim 7, characterized in that: A vibration motor is fixed in the lower fitting cover (75), and the vibration surface of the vibration motor is slidably fitted to the lower surface of the elastic mesh plate (64).

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