AU2020102980A4

AU2020102980A4 - Anti-leakage continuous feeding apparatus used for cell slurry stirring-based production

Info

Publication number: AU2020102980A4
Application number: AU2020102980A
Authority: AU
Inventors: Jinfan Cao; Ranchao Cao; Suxia Wang
Original assignee: Anhui Zhengxi Biaowang New Energy Co Ltd
Current assignee: Anhui Zhengxi Biaowang New Energy Co Ltd
Priority date: 2020-06-05
Filing date: 2020-10-23
Publication date: 2020-12-24
Anticipated expiration: 2028-10-23
Also published as: CN111921453A; CN111921453B

Abstract

One or more embodiments of this specification provide an anti-leakage continuous feeding apparatus used for cell slurry stirring-based production, including a feeding cylinder, where one end is provided with an unloading connection port, the other end is provided with a 5 filling port, and a filling funnel is disposed above the filling port; a spiral feeding plate, disposed inside the feeding cylinder, where a drive shaft is disposed in the middle, and one end of the drive shaft is connected to a filling motor; and a sealed feeding bin, disposed outside the unloading connection port, where sealing baffles are symmetrically disposed on the left and right sides. According to the present invention, raw materials can be quantitatively 0 transported by using a feeding wheel. The feeding wheel can rotate to transport the cell raw materials to one side of a lower discharging connection tube, and a feeding push plate can extend to push the raw materials in the circular storage bin, so that the raw materials enter a discharging connection tube and a sealing spacer plate keeping the feeding connection sealed is further pushed to open. In this way, more than two separate sealed structures are present in 5 the transport process, so that a stirring tank is kept sealed when the raw materials are being transported. 1/4 41 3\ 1 201 10210 1032 1 7 60220 602~ -402 1410 402 301 403 6 0 77 FIG. 2

Description

1/4 41 3\ 1 201 10210

1032 1 7

60220

602~ -402

1410

402 301

403

6 0

77

FIG. 2

ANTI-LEAKAGE CONTINUOUS FEEDING APPARATUS USED FOR CELL SLURRY STIRRING-BASED PRODUCTION TECHNICAL FIELD

[0001] One or more embodiments of this specification relate to the field of battery production technologies, and in particular, to an anti-leakage continuous feeding apparatus used for cell slurry stirring-based production.

BACKGROUND

[0002] Cell slurry stirring is a mixing and dispersing process which has over 30% impact on product quality in the whole production process. It is the most important step in the whole production process. During electrode production of a lithium ion battery, a positive electrode slurry is composed of an adhesive, a conductive agent, a positive electrode material, and the like, and a negative electrode slurry is composed of an adhesive, graphite powder, and the like. The production of positive and negative electrode slurries involves a series of processes such as mixing, dissolving and dispersing between liquid materials and between liquid and solid materials. In addition, in this process, the temperature, viscosity, and environment may vary. Because the positive and negative electrode slurries of the battery usually tend to react with air, especially in the stirring process, tend to be in full contact with the air, reaction, oxidation, or even fire may occur on the positive and negative electrode slurries, leading to material scrap and production accidents. Therefore, during cell slurry stirring-based production, it is usually necessary to put all materials into a stirring tank, seal feeding and discharging ports, and evacuate air in the stirring tank to create a vacuum.

[0003] The applicant finds that, because during cell slurry stirring-based production, it is necessary to keep the whole structure of the stirring tank sealed and to keep the stirring tank be in a vacuum or be protected by inert gases, often cell slurries can be stirred for production only in batches, and the production efficiency is directly related to the size of the stirring tank, making it difficult to carry out continuous production. Further, the larger the amount of materials stirred for production, the more difficult it is to mix the raw materials sufficiently, and the longer the time for stirring the materials for production is. Therefore, it is difficult to improve the production efficiency. In addition, during cell slurry stirring-based production, because raw materials measured in advance are usually consumed due to various reactions I and other factors, a problem occurs on the ratio of the raw materials. However, the whole structure of the stirring tank needs to be kept sealed, so additional materials cannot be filled, leading to low production flexibility.

SUMMARY

[0004] In view of this, the objective of one or more embodiments of this specification is to provide an anti-leakage continuous feeding apparatus used for cell slurry stirring-based production, to resolve the problem.

[0005] On the basis of the above objective, the one or more embodiments of this specification provide an anti-leakage continuous feeding apparatus used for cell slurry stirring-based production, including: a feeding cylinder, where one end is provided with an unloading connection port, the other end is provided with a filling port, and a filling funnel is disposed above the filling port; a spiral feeding plate, disposed inside the feeding cylinder, where a drive shaft is disposed in the middle, and one end of the drive shaft is connected to afilling motor; a sealed feeding bin, disposed outside the unloading connection port, where sealing baffles are symmetrically disposed on the left and right sides, and a lower connection port is disposed below the sealing baffle; a feeding wheel, disposed inside the sealed feeding bin, where circular storage bins are disposed outside, a central shaft is disposed in the middle, and one end of the central shaft is provided with a wheel motor; a feeding push plate, disposed on one side of the lower connection port, where a hydraulic push rod is disposed on the rear side, a connection rod is disposed outside the hydraulic push rod, and a fastening sleeve is nested on the rear end of the connection rod; a discharging connection tube, disposed on the other side of the lower connection port, where a sealing spacer plate is nested inside, a horizontal slider is disposed on the rear side of the sealing spacer plate, a connection slide sleeve is disposed on the rear side of the horizontal slider, and a reset spring is disposed on the rear side of the connection slide sleeve; and a discharging cylinder, disposed outside the discharging connection tube, where a discharging connection port is disposed below.

[0006] In some optional embodiments, a horizontal center line of the spiral feeding plate and a horizontal center line of the feeding cylinder are on the same straight line, and the spiral feeding plate fits the feeding cylinder in size.

[0007] In some optional embodiments, a horizontal center line of the circular storage bin and a horizontal center line of the feeding cylinder are on the same straight line, and the circular storage bin fits the feeding cylinder in size.

[0008] In some optional embodiments, the feeding wheel fits the sealed feeding bin in size, and an outer surface of the feeding wheel is attached to an inner surface of the sealed feeding bin.

[0009] In some optional embodiments, the circular storage bins are symmetrically disposed with respect to a horizontal center line of the feeding wheel, and horizontal center lines of the circular storage bins are parallel to each other.

[0010] In some optional embodiments, a horizontal center line of the feeding push plate and a horizontal center line of the circular storage bin are on the same straight line, and the feeding push plate fits the circular storage bin in size.

[0011] In some optional embodiments, a horizontal center line of the discharging connection tube and a horizontal center line of the circular storage bin are on the same straight line, and an outer surface of the sealing spacer plate and an outer surface of the feeding push plate are parallel to each other.

[0012] In some optional embodiments, a horizontal center line of the sealing spacer plate and a horizontal center line of the discharging connection tube are on the same straight line, and the sealing spacer plate fits the discharging connection tube in size.

[0013] As can be learned from the above, according to the anti-leakage continuous feeding apparatus used for cell slurry stirring-based production provided in the present invention, positive and negative electrode raw materials are transported to one of the circular storage bins of the feeding wheel by using the feeding cylinder and the spiral feeding plate. The raw materials can be quantitatively transported by using the feeding wheel. The discharging connection tube is separate from the feeding cylinder to ensure the airtightness. The feeding wheel can rotate to transport the circular storage bin and the cell raw materials in the circular storage bin to one side of the lower discharging connection tube, and the feeding push plate can extend to push the raw materials in the circular storage bin, so that the raw materials enter the discharging connection tube and the sealing spacer plate keeping the feeding connection sealed is further pushed to open, to transport the raw materials from the discharging cylinder.

In this way, more than two separate sealed structures are present in the process of transporting the raw materials, so that a stirring tank is kept sealed when the raw materials are being transported, thereby achieving continuous feeding and production and improving the production efficiency.

BRIEF DESCRIPTION OF DRAWINGS

[0014] To describe the technical solutions in one or more embodiments of this specification or in the existing technology more clearly, the following briefly describes the accompanying drawings needed for describing the embodiments or the existing technology. Clearly, the accompanying drawings in the following descriptions merely show one or more embodiments of this specification, and a person of ordinary skill in the art can still derive other drawings from these accompanying drawings without creative efforts.

[0015] Fig. 1 is a schematic structural diagram according to an embodiment of the present invention;

[0016] Fig. 2 is a schematic diagram of a front structure according to an embodiment of the present invention;

[0017] Fig. 3 is a schematic diagram of a breakdown structure according to an embodiment of the present invention;

[0018] Fig. 4 is a schematic structural diagram of a longitudinal cross-section according to an embodiment of the present invention;

[0019] Fig. 5 is a schematic structural diagram of a feeding cylinder according to an embodiment of the present invention;

[0020] Fig. 6 is a schematic structural diagram of a sealed feeding bin according to an embodiment of the present invention;

[0021] Fig. 7 is a schematic structural diagram of a discharging connection tube according to an embodiment of the present invention; and

[0022] Fig. 8 is a schematic structural diagram of a discharging state according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To make the objective, technical solutions and advantages of the present disclosure clearer, the following further describes the present disclosure in detail with reference to specific embodiments.

[0024] One or more embodiments of this specification provide an anti-leakage continuous feeding apparatus used for cell slurry stirring-based production, including: a feeding cylinder 1, where one end is provided with an unloading connection port 101, the other end is provided with a filling port 102, and a filling funnel 103 is disposed above the filling port 102; a spiral feeding plate 2, disposed inside the feeding cylinder 1, where a drive shaft 201 is disposed in the middle, and one end of the drive shaft 201 is connected to a filling motor 202; a sealed feeding bin 3, disposed outside the unloading connection port 101, where sealing baffles 301 are symmetrically disposed on the left and right sides, and a lower connection port 302 is disposed below the sealing baffle 301; a feeding wheel 4, disposed inside the sealed feeding bin 3, where circular storage bins 401 are disposed outside, a central shaft 402 is disposed in the middle, and one end of the central shaft 402 is provided with a wheel motor 403; a feeding push plate 5, disposed on one side of the lower connection port 302, where a hydraulic push rod 501 is disposed on the rear side, a connection rod 502 is disposed outside the hydraulic push rod 501, and a fastening sleeve 503 is nested on the rear end of the connection rod 502; a discharging connection tube 6, disposed on the other side of the lower connection port 302, where a sealing spacer plate 601 is nested inside, a horizontal slider 602 is disposed on the rear side of the sealing spacer plate 601, a connection slide sleeve 603 is disposed on the rear side of the horizontal slider 602, and a reset spring 604 is disposed on the rear side of the connection slide sleeve 603; and a discharging cylinder 7, disposed outside the discharging connection tube 6, where a discharging connection port 701 is disposed below.

[0025] Referring to Fig. 1 to Fig. 7, in an embodiment of the present invention, an anti-leakage continuous feeding apparatus 1 used for cell slurry stirring-based production includes: a feeding cylinder 1, where one end is provided with an unloading connection port 101, the other end is provided with a filling port 102, and a filling funnel 103 is disposed above the filling port 102; a spiral feeding plate 2, disposed inside the feeding cylinder 1, where a drive shaft 201 is disposed in the middle, and one end of the drive shaft 201 is connected to a filling motor 202; a sealed feeding bin 3, disposed outside the unloading connection port 101, where sealing baffles 301 are symmetrically disposed on the left and right sides, and a lower connection port 302 is disposed below the sealing baffle 301; a feeding wheel 4, disposed inside the sealed feeding bin 3, where circular storage bins 401 are disposed outside, a central shaft 402 is disposed in the middle, and one end of the central shaft 402 is provided with a wheel motor 403; a feeding push plate 5, disposed on one side of the lower connection port 302, where a hydraulic push rod 501 is disposed on the rear side, a connection rod 502 is disposed outside the hydraulic push rod 501, and a fastening sleeve 503 is nested on the rear end of the connection rod 502; a discharging connection tube 6, disposed on the other side of the lower connection port 302, where a sealing spacer plate 601 is nested inside, a horizontal slider 602 is disposed on the rear side of the sealing spacer plate 601, a connection slide sleeve 603 is disposed on the rear side of the horizontal slider 602, and a reset spring 604 is disposed on the rear side of the connection slide sleeve 603; and a discharging cylinder 7, disposed outside the discharging connection tube 6, where a discharging connection port 701 is disposed below.

[0026] Referring to Fig. 2 to Fig. 6, optionally, a horizontal center line of the spiral feeding plate 2 and a horizontal center line of the feeding cylinder 1 are on the same straight line, and the spiral feeding plate 2 fits the feeding cylinder 1 in size; and a horizontal center line of the circular storage bin 401 and a horizontal center line of the feeding cylinder 1 are on the same straight line, and the circular storage bin 401 fits the feeding cylinder 1 in size. In the apparatus, cell raw materials are filled by using the filling funnel 103, and then the cell raw materials can enter the feeding cylinder 1 through the filling port 102, and are continuously output to the discharging connection port 101 at one end of the feeding cylinder 1 by using the spiral feeding plate 2. The feeding cylinder 1 is connected to the sealed feeding bin 3 by using the unloading connection port 101, and one circular storage bin 401 of the feeding wheel 4 is located at the unloading connection port 101. Therefore, the cell raw materials can be transported to the circular storage bin 401 by using the spiral feeding plate 2.

[0027] Referring to Fig. 3 to Fig. 6, optionally, the feeding wheel 4 fits the sealed feeding bin 3 in size, and an outer surface of the feeding wheel 4 is attached to an inner surface of the sealed feeding bin 3; and the circular storage bins 401 are symmetrically disposed with respect to a horizontal center line of the feeding wheel 4, and horizontal center lines of the circular storage bins 401 are parallel to each other. In the apparatus, the unloading connection port 101 is separate from the lower connection port 302 mainly by using the feeding wheel 4, and the feeding wheel 4 fits the sealed feeding bin 3 in size and they are closely attached to each other, preventing gases from entering or leaking. The transport of materials mainly depends on the rotation of the feeding wheel 4. A pair of circular storage bins 401 symmetrically disposed on the feeding wheel 4 can rotate to cyclically move between the unloading connection port 101 and the lower connection port 302. When one circular storage bin 401 is located at the unloading connection port 101, materials can be fed, and the other lower circular storage bin 401 is located at the lower connection port 302 for unloading, so that feeding and unloading are performed at the same time, achieving higher efficiency. Further, when the feeding wheel 4 rotates, the unloading connection port 101 and the lower connection port 302 can be blocked for sealing, so that the apparatus is kept sealed during the transport of the cell raw materials. In addition, because the circular storage bin 401 has a fixed capacity, the raw materials can be quantitatively transported.

[0028] Referring to Fig. 3 to Fig. 8, optionally, a horizontal center line of the feeding push plate 5 and a horizontal center line of the circular storage bin 401 are on the same straight line, and the feeding push plate 5 fits the circular storage bin 401 in size; a horizontal center line of the discharging connection tube 6 and a horizontal center line of the circular storage bin 401 are on the same straight line, and an outer surface of the sealing spacer plate 601 and an outer surface of the feeding push plate 5 are parallel to each other; and a horizontal center line of the sealing spacer plate 601 and a horizontal center line of the discharging connection tube 6 are on the same straight line, and the sealing spacer plate 601 fits the discharging connection tube 6 in size. When the circular storage bin 401 of the apparatus rotates to the lower connection port 302, the feeding push plate 5 on its one side can move parallel under the push of the hydraulic push rod 501, so that raw materials in the circular storage bin 401 are pushed out of the circular storage bin 401. Further, the sealing spacer plate 601 is further disposed on the other side of the circular storage bin 401, and the sealing spacer plate 601 is located in the middle of the discharging connection tube 6 to separate the discharging connection tube 6 from the sealed feeding bin 3, ensuring the airtightness and preventing leakage. In addition, because the feeding push plate 5 pushes the cell raw materials to move, the sealing spacer plate 601 is also pushed to move, and the sealing spacer plate 601 moves to the rear side of the discharging connection tube 6 to open a channel between the discharging connection tube 6 and the sealed feeding bin 3, so that the cell raw materials are transported to the discharging cylinder 7 by using the discharging connection tube 6 and are further filled in a stirring tank. In the process of feeding and discharging, the apparatus always has multiple sealed structures, so that the stirring tank is kept sealed to the maximum extent, and the internal cell raw materials are prevented from being in contact with outside air or internal protective gases are prevented from leaking. Moreover, it is also convenient to continuously add cell raw materials to the stirring tank, so that a ratio can be flexibly adjusted, which is beneficial to improving the production safety and efficiency.

[0029] In use, the apparatus is first connected to a feeding port of the stirring tank by using the discharging cylinder 7 to keep the connection sealed. During subsequent production, the cell raw materials are filled in the feeding cylinder 1 by using the filling funnel 103 and the filling port 102, and the filling motor 202 drives the spiral feeding plate 2 to rotate by using the drive shaft 201, so that the cell raw materials are transported to the unloading connection port 101 by using the feeding cylinder 1. In this case, the circular storage bin 401 is located at the unloading connection port 101, so the raw materials are further filled in the circular storage bin 401. After the circular storage bin 401 is filled up with the cell raw materials, the wheel motor 403 drives the feeding wheel 4 to rotate by using the central shaft 402, and the circular storage bin 401 filled up with the raw materials rotates to the lower connection port 302 at the bottom together with the feeding wheel 4. The other vacant circular storage bin 401 on the other side is located at the unloading connection port 101 for filling. The feeding push plate 5 disposed on one side of the lower connection port 302 moves parallel under the push of the hydraulic push rod 501, and the feeding push plate 5 moves parallel to the circular storage bin 401 through the lower connection port 302, and pushes the cell raw materials out of the circular storage bin 401. On the other side of the cell raw materials, the sealing spacer plate 601 is squeezed and pushed, and the sealing spacer plate 601 moves parallel in the connection slide sleeve 603 by using the horizontal slider 602 on the rear side, to open the discharging connection tube 6, so that the cell raw materials fall into the discharging cylinder 7 through a gap, and then fall into the stirring tank through the discharging connection port 701 for mixing and stirring. Then the feeding push plate 5 retracts by using the hydraulic push rod 501, and the sealing spacer plate 601 seals the discharging connection port 6 again under the push of the reset spring 604. Subsequently, the feeding wheel 4 continues to rotate. In this way, feeding is repeated.

[0030] According to the anti-leakage continuous feeding apparatus used for cell slurry stirring-based production provided in the present invention, positive and negative electrode raw materials are transported to one of the circular storage bins 401 of the feeding wheel 4 by using the feeding cylinder 1 and the spiral feeding plate 2. The raw materials can be quantitatively transported by using the feeding wheel 4. The discharging connection tube 6 is separate from the feeding cylinder 1 to ensure the airtightness. The feeding wheel 4 can rotate to transport the circular storage bin 401 and the cell raw materials in the circular storage bin 401 to one side of the lower discharging connection tube 6, and the feeding push plate 5 can extend to push the raw materials in the circular storage bin 401, so that the raw materials enter the discharging connection tube 6 and the sealing spacer plate 601 keeping the feeding connection sealed is further pushed to open, to transport the raw materials from the discharging cylinder 7. In this way, more than two separate sealed structures are present in the process of transporting the raw materials, so that the stirring tank is kept sealed when the raw materials are being transported, thereby achieving continuous feeding and production and improving the production efficiency.

[0031] The one or more embodiments of this specification are intended to cover all such substitutions, modifications and variations falling within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. made without departing from the spirit and principle of the one or more embodiments of this specification shall fall within the protection scope of the present disclosure.

Claims

What is claimed is: 1. An anti-leakage continuous feeding apparatus used for cell slurry stirring-based production, comprising: a feeding cylinder, wherein one end is provided with an unloading connection port, the other end is provided with a filling port, and a filling funnel is disposed above the filling port; a spiral feeding plate, disposed inside the feeding cylinder, wherein a drive shaft is disposed in the middle, and one end of the drive shaft is connected to a filling motor; a sealed feeding bin, disposed outside the unloading connection port, wherein sealing baffles are symmetrically disposed on the left and right sides, and a lower connection port is disposed below the sealing baffle; a feeding wheel, disposed inside the sealed feeding bin, wherein circular storage bins are disposed outside, a central shaft is disposed in the middle, and one end of the central shaft is provided with a wheel motor; a feeding push plate, disposed on one side of the lower connection port, wherein a hydraulic push rod is disposed on the rear side, a connection rod is disposed outside the hydraulic push rod, and a fastening sleeve is nested on the rear end of the connection rod; a discharging connection tube, disposed on the other side of the lower connection port, wherein a sealing spacer plate is nested inside, a horizontal slider is disposed on the rear side of the sealing spacer plate, a connection slide sleeve is disposed on the rear side of the horizontal slider, and a reset spring is disposed on the rear side of the connection slide sleeve; and a discharging cylinder, disposed outside the discharging connection tube, wherein a discharging connection port is disposed below.
2. The anti-leakage continuous feeding apparatus used for cell slurry stirring-based production according to claim 1, wherein a horizontal center line of the spiral feeding plate and a horizontal center line of the feeding cylinder are on the same straight line, and the spiral feeding plate fits the feeding cylinder in size.
3. The anti-leakage continuous feeding apparatus used for cell slurry stirring-based production according to claim 1, wherein a horizontal center line of the circular storage bin and a horizontal center line of the feeding cylinder are on the same straight line, and the circular storage bin fits the feeding cylinder in size.
4. The anti-leakage continuous feeding apparatus used for cell slurry stirring-based production according to claim 1, wherein the feeding wheel fits the sealed feeding bin in size, and an outer surface of the feeding wheel is attached to an inner surface of the sealed feeding bin.
5. The anti-leakage continuous feeding apparatus used for cell slurry stirring-based production according to claim 1, wherein the circular storage bins are symmetrically disposed with respect to a horizontal center line of the feeding wheel, and horizontal center lines of the circular storage bins are parallel to each other.
6. The anti-leakage continuous feeding apparatus used for cell slurry stirring-based production according to claim 1, wherein a horizontal center line of the feeding push plate and a horizontal center line of the circular storage bin are on the same straight line, and the feeding push plate fits the circular storage bin in size.
7. The anti-leakage continuous feeding apparatus used for cell slurry stirring-based production according to claim 1, wherein a horizontal center line of the discharging connection tube and a horizontal center line of the circular storage bin are on the same straight line, and an outer surface of the sealing spacer plate and an outer surface of the feeding push plate are parallel to each other.
8. The anti-leakage continuous feeding apparatus used for cell slurry stirring-based production according to claim 1, wherein a horizontal center line of the sealing spacer plate and a horizontal center line of the discharging connection tube are on the same straight line, and the sealing spacer plate fits the discharging connection tube in size.