Graphite shearing device and shearing method

Abstract

The application discloses a graphite shearing device and a shearing method, which comprise a shearing machine shell, a driven shaft is horizontally arranged through the middle part of the shearing machine shell, a motor is arranged on one side of the shearing machine shell, a driving shaft is connected to the output end of the motor, a belt pulley is arranged on the outer ring of the driving shaft and the driven shaft, and a shearing mechanism is arranged on the outer ring of the driven shaft in the shearing machine shell. The shearing mechanism comprises a plurality of guide plates and a plurality of shearing pieces, and the plurality of guide plates and the plurality of shearing pieces are coaxially and spaced apart. The graphite is cut by the shearing machine, the graphite crystal nucleus is separated out, and a fine gap is formed on the surface of the graphite crystal nucleus along the layering direction of the graphite by adding an additive, so that the surface area of the graphite crystal nucleus is increased, the energy storage density of the negative electrode material is improved, the graphite negative electrode material with the crystal nucleus can be realized without a crystallization process, the use requirement can be met, and the high-energy-consumption crystallization process is not needed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of graphite shearing, in particular to a graphite shearing device and a shearing method. BACKGROUND

[0002] Graphite is a carbon allotrope, which is a gray-black opaque solid, has stable chemical properties and is resistant to corrosion and reaction with acid, alkali and other reagents. At present, in the production and processing process of graphite, the material needs to be sheared, and the existing shearing device for graphite processing.

[0003] With the rapid development of the ion battery industry, the graphite negative electrode material, an important component, has also experienced explosive development. It is found in application that the traditional natural graphite additive material has a layered structure, and after repeated charge and discharge cycles in application, the layered structure will gradually fail and disintegrate, directly affecting the service life of the negative electrode material. In order to solve this problem, a crystallization process is introduced in the preparation of the natural graphite negative electrode material, a crystal graphite core is generated in the negative electrode graphite material particles through high temperature remelting, so as to maintain the strength of the negative electrode material and ensure the service life.

[0004] However, after introducing the crystallization process, a large amount of energy is consumed to generate the crystal nucleus in the graphite negative electrode material particles, and various toxic substances are discharged. This seriously affects the environment and does not meet the low-energy manufacturing requirements, so the use of the crystallization process to manufacture the graphite negative electrode is limited, and therefore the number of the above-mentioned crystal nucleus material cannot meet the application requirements. SUMMARY

[0005] The application aims to provide a graphite shearing device and a shearing method to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a graphite shearing device, comprising a shearing machine shell, a driven shaft is transversely arranged in the middle of the shearing machine shell, a motor is arranged on one side of the shearing machine shell, a driving shaft is connected to the output end of the motor, the outer rings of the driving shaft and the driven shaft are both provided with belt pulleys, and a transmission belt is sleeved on the belt pulleys, and a shearing mechanism is arranged on the outer ring of the section of the driven shaft in the shearing machine shell.

[0007] The shearing mechanism comprises a plurality of guide plates and a plurality of shearing pieces, and the plurality of guide plates and the plurality of shearing pieces are coaxially and spaced apart.

[0008] Further, the shearing machine shell is composed of two upper and lower half-round shells, the outer wall of the connection between the two upper and lower half-round shells is provided with a connecting fastener, the inner cavity of the connecting fastener is provided with a connecting hole, and the connecting hole is locked by an upper and lower buckle, and the connecting surface of the two upper and lower half-round shells is provided with a sealing gasket.

[0009] Further, the shearing piece comprises a shearing piece body, the shearing piece body is circular, and a plurality of shearing heads in opposite directions are uniformly arranged on the outer edge of the shearing piece body.

[0010] Further, the guide plate comprises a guide main plate, the guide main plate is circular, and a plurality of arc-shaped guide groove pieces are arranged on the guide main plate.

[0011] Further, the shearing machine shell is provided with a support on each of the left side and the right side of the lower part of the shearing machine shell, and the height of the left support is consistent with the height of the right support.

[0012] Further, the shearing machine shell is provided with a feeding port on the right side of the left end of the shearing machine shell, and the shearing machine shell is provided with a discharging port on the left side of the left end of the shearing machine shell, and the height of the feeding port is lower than the height of the discharging port.

[0013] Further, the driven shaft is provided with a fixing seat at both ends of the driven shaft, the top of the fixing seat is provided with a receiving groove, and the fixing ring is fixedly sleeved on both ends of the driven shaft and movably connected in the inner cavity of the receiving groove.

[0014] Further, the shearing machine shell is provided with a liquid level sensor and a temperature sensor in the lower half of the shearing machine shell, and the liquid level sensor and the temperature sensor are electrically connected by the PLC control system.

[0015] In addition, a graphite shearing device is also provided, which comprises the graphite shearing device.

[0016] Step 1: the solution containing graphite treated by microwaves is injected into the shearing machine shell from the feeding port by an external water pump;

[0017] Step 2: the motor is started, the motor drives the driving shaft to rotate, then the transmission belt drives the driven shaft to rotate, and then the shearing piece is driven to rotate, the shearing head shears the graphite, the solution is stirred and pushed forward by the guide groove piece during the shearing process, and the solution is discharged from the other side after shearing.

[0018] Compared with the prior art, the graphite shearing device has the following beneficial effects:

[0019] Through the shearing machine, the solution containing graphite treated by microwave is injected into the shearing machine shell from the feeding port by an external water pump, the motor drives the driving shaft to rotate, the driving shaft drives the driven shaft to rotate, the driven shaft drives the shearing piece to rotate, the shearing head is sheared, the guide plate is synchronously rotated, the solution is stirred by the guide groove piece, at this time, the ultrasonic wave in the solution acts on the stress concentration of the graphite, the graphite is cut off, the graphite nucleus peeled off is engraved with fine gaps on the surface along the layering direction of the graphite by the additive to increase the surface area of the graphite nucleus and improve the energy storage density of the negative electrode material, the graphite negative electrode material with the nucleus can be realized without the crystallization process, the use requirement can be met, and the high energy consumption crystallization process is not needed. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Structure diagram of the present application Figure One ;

[0021] Figure 2 Structure diagram of the present application Figure Two ;

[0022] Figure 3 Structure diagram of the present application

[0023] Figure 4 Structure diagram of the present application

[0024] Figure 5 Structure diagram of the present application

[0025] Figure 6 Structure diagram of the present application

[0026] Figure 7 Structure diagram of the present application

[0027] In the figure: shearing machine shell 1, driven shaft 2, motor 3, driving shaft 4, transmission belt 5, guide plate 6, shearing piece 7, buckle 8, sealing gasket 9, support 10, feeding port 11, discharging port 12, fixed seat 13, receiving groove 14, fixed ring 15, shearing piece main body 70, shearing head 71, guide main plate 60, guide groove piece 61. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0029] Embodiment 1:

[0030] Please refer to 1-6, the embodiment provides a graphite shearing device, including shearing machine shell 1, the middle part of the shearing machine shell 1 is transversely through the driven shaft 2, the side of the shearing machine shell 1 is provided with motor 3, the output end of the motor 3 is connected with driving shaft 4, the outer ring of driving shaft 4 and driven shaft 2 is provided with pulley and is set with transmission belt 5 on pulley, the outer ring of driven shaft 2 in shearing machine shell 1 is provided with shearing mechanism.

[0031] The shearing mechanism includes several guide plates 6 and several shear blades 7, several guide plates 6 and several shear blades 7 form coaxial type spacing design.

[0032] Further, the shearing machine shell 1 is composed of two groups of semicircular shells, wherein the outer wall of the connecting part of the two groups of semicircular shells is provided with a connecting fastener, the inner cavity of the connecting fastener is provided with a connecting hole, and the connecting hole is locked by the upper and lower buckles 8, the connecting surface of the two groups of semicircular shells is provided with a sealing gasket 9, which increases the connection sealing property of the shearing machine shell 1.

[0033] In the embodiment, the shear blade 7 includes a shear blade body 70, the shear blade body 70 is circular, and a plurality of shear heads 71 with opposite directions are uniformly arranged on the outer edge of the shear blade body 70, and the top shear angle of the shear head 71 is an oblique angle.

[0034] Secondly, the guide plate 6 includes a guide main plate 60, the guide main plate 60 is circular, a plurality of arc-shaped guide groove pieces 61 are arranged on the guide main plate 60, the guide main plate 60 and the shear blade body 70 are coaxially arranged and fixed on the driven shaft 2, the driven shaft 2 drives the shear blade 7 and the guide plate 6 to rotate together, the guide groove piece 61 on the guide plate 6 stirs and pushes forward the solution, and the shear head 71 shears.

[0035] Further, the two sides of the lower part of the shearing machine shell 1 are provided with supports 10, wherein the height of the left support 10 is consistent with the height of the right support 10.

[0036] Further, the right side of the left end of the shearing machine shell 1 is provided with a feeding port 11, and the left side of the left end of the shearing machine shell 1 is provided with a discharging port 12, the height of the feeding port 11 is lower than the height of the discharging port 12, the solution containing graphite enters from the feeding port 11, and is discharged from the discharging port 12 after shearing.

[0037] Further, the two ends of the driven shaft 2 are provided with fixing seats 13, the top of the fixing seat 13 is provided with a receiving groove 14, the two ends of the driven shaft 2 are fixedly sleeved with fixing rings 15, and the fixing rings 15 are movably connected in the inner cavity of the receiving groove 14.

[0038] Further, the inside of the lower half of the shearing machine shell 1 is provided with a liquid level sensor and a temperature sensor, the liquid level sensor and the temperature sensor are electrically connected to the PLC control system, the motor 3 is controlled by the frequency converter, the input end of the frequency converter inputs three-phase alternating current, and an adjustable frequency three-phase alternating current is output after rectification and inversion inside the frequency converter, the frequency of the output alternating current of the frequency converter is changed to control the speed of the motor 3 and further control and adjust the speed of the shearing piece 7, the inside of the lower half of the shearing machine shell 1 is provided with a liquid level sensor and a temperature sensor, the liquid level sensor and the temperature sensor are electrically connected to the PLC control system, the left end of the shearing machine shell 1 is provided with a feed inlet 11 on the right side, the left end of the shearing machine shell 1 is provided with a discharge outlet 12 on the left side, the height of the feed inlet 11 is lower than the height of the discharge outlet 12, the liquid level inside the shearing machine is detected by the liquid level sensor, and the data of the liquid level sensor is output to the PLC control system to detect the internal liquid level in real time, at the same time, the temperature sensor detects the temperature of the shearing machine in real time, and the PLC control system is concentric with the frequency converter, when the shearing speed, temperature and liquid level parameters exceed the set safety range, the automatic alarm function is started.

[0039] In addition, a graphite shearing device is also provided, which comprises the following steps:

[0040] First step: the solution containing graphite treated by microwaves is injected into the shearing machine shell 1 from the feed inlet 11 by an external water pump;

[0041] Second step: start the motor 3, the motor 3 drives the driving shaft 4 to rotate, then drives the driven shaft 2 to rotate through the transmission belt 5, and then drives the shearing piece 7 to rotate, the shearing head 71 shears the graphite, the solution is stirred and pushed forward by the flow guide groove piece 61 during the shearing process, and is discharged from the other side of the discharge outlet 12 after shearing.

[0042] Working principle: the solution containing graphite treated by microwaves is injected into the shearing machine shell 1 from the feed inlet 11 by an external water pump, the motor 3 drives the driving shaft 4 to rotate, the driving shaft 4 drives the driven shaft 2 to rotate, and the shearing piece 7 is driven by the driven shaft 2 to shear, at this time, the ultrasonic waves in the solution act on the stress concentration position of the graphite, the graphite is cut off, the graphite crystal nucleus peeled off is marked with a fine gap on the surface along the layering direction of the graphite by the additive to increase the surface area of the graphite crystal nucleus and improve the energy storage density of the negative electrode material, the graphite negative electrode material with crystal nucleus can be realized without crystallization process, which can meet the use requirements and does not need the high-energy consumption crystallization process.

[0043] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A graphite shearing apparatus comprising a shearing machine housing, characterised in that: The middle part of the shearing machine shell is transversely provided with a driven shaft, one side of the shearing machine shell is provided with a motor, the output end of the motor is connected with a driving shaft, the outer rings of the driving shaft and the driven shaft are both provided with belt pulleys and transmission belts are sleeved on the belt pulleys, and a shearing mechanism is arranged on one section of the outer ring of the driven shaft in the shearing machine shell; The shearing mechanism comprises a plurality of guide plates and a plurality of shearing pieces, and the plurality of guide plates and the plurality of shearing pieces are coaxially and spaced apart; The shearing machine shell is composed of two groups of semicircular shells, the outer wall of the connection part of the two groups of semicircular shells is provided with a connecting fastener, the inner cavity of the connecting fastener is provided with a connecting hole and is locked by an upper and lower buckle, and a sealing gasket is arranged at the connecting surface of the two groups of semicircular shells; The shearing piece comprises a shearing piece main body, the shearing piece main body is circular, and a plurality of shearing heads with opposite directions are uniformly arranged on the outer edge of the shearing piece main body; The guide plate comprises a guide main plate, the guide main plate is circular, and a plurality of arc-shaped guide groove pieces are arranged on the guide main plate; The inside of the lower half of the shearing machine shell is provided with a liquid level sensor and a temperature sensor, and the liquid level sensor and the temperature sensor are electrically connected by a PLC control system.

2. A graphite shearing apparatus according to claim 1, wherein: The left side support and the right side support of the lower part of the shearing machine shell are both provided with supports, and the height of the left side support is consistent with the height of the right side support.

3. A graphite shearing apparatus according to claim 1, wherein: The right side of the left end of the shearing machine shell is provided with an inlet, and the left side of the left end of the shearing machine shell is provided with an outlet, and the height of the inlet is lower than the height of the outlet.

4. A graphite shearing apparatus according to claim 1, wherein: The two ends of the driven shaft are provided with fixing seats, the top of the fixing seat is provided with a receiving groove, and the two ends of the driven shaft are fixedly sleeved with fixing rings which are movably connected in the inner cavity of the receiving groove.

5. A method of shearing graphite, characterized by, The graphite shearing device of any one of claims 1 to 4 comprises the following steps: First step: the solution containing graphite treated by microwave is injected into the shearing machine shell through the external water pump from the inlet; Second step: start the motor, the motor drives the driving shaft to rotate, then drives the driven shaft to rotate through the transmission belt, and then drives the shearing piece to rotate, the shearing head shears the graphite solution, the solution is stirred and pushed forward by the guide groove piece during the shearing process, and the shearing piece is discharged from the other side after shearing.

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