A control method for a slurry delivery system

Abstract

A control method of a slurry delivery system is disclosed. The control method includes a controller confirming a real-time volume of slurry in a first mixing tank transmitted by a first detector. The controller confirms a real-time volume of slurry in a transfer tank transmitted by a second detector. When the sum of the real-time volume of slurry in the transfer tank and the real-time volume of slurry in the first mixing tank is less than a rated capacity of the transfer tank, the controller controls the first mixing tank to deliver slurry to the transfer tank until a ratio of the real-time volume of slurry in the first mixing tank to the rated capacity of the first mixing tank is within a first preset range. By this method, the slurry delivery system can automatically empty the slurry in the mixing tank for the preparation of the next tank of slurry without the need for manual tank opening confirmation, improving accuracy and production efficiency, and the slurry in the mixing tank is not easily contaminated by tank opening.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing equipment technology, and in particular to a control method for a slurry conveying system. Background Technology

[0002] Electrode slurry mixing involves uniformly mixing active materials, conductive carbon black, dispersants, binders, additives, and other components in a mixing tank to form a stable solid-liquid suspension system that meets the requirements of subsequent coating processes.

[0003] To confirm that the slurry in the mixing tank has been emptied in preparation for the next batch, it is usually necessary for staff to open the tank for verification. This verification method is inefficient and inaccurate. In addition, opening the tank exposes any remaining slurry to air, which can affect the quality of the slurry. Summary of the Invention

[0004] This application provides a control method and a slurry conveying system that can automatically empty the slurry in the mixing tank to prepare the next tank of slurry, without the need for manual tank opening for confirmation, thereby improving production efficiency, increasing accuracy, and reducing the risk of contamination of the slurry in the mixing tank.

[0005] This application provides a control method for a slurry conveying system. The slurry conveying system is applied to a coating machine and includes a first mixing tank, a transfer tank, a first detector, a second detector, and a controller.

[0006] The first mixing tank is connected to the transfer tank. The first detector is located in the first mixing tank, and the second detector is located in the transfer tank. The controller is communicatively connected to the first detector, the second detector, and the first mixing tank.

[0007] Control methods include:

[0008] The controller confirms the real-time remaining amount of slurry in the first mixing tank transmitted by the first detector;

[0009] The controller confirms the real-time slurry level in the transfer tank transmitted by the second detector;

[0010] When the sum of the real-time slurry balance in the transfer tank and the real-time slurry balance in the first mixing tank is less than the rated capacity of the transfer tank, the controller controls the first mixing tank to deliver slurry to the transfer tank until the ratio of the real-time slurry balance in the first mixing tank to the rated capacity of the first mixing tank is within a first preset range.

[0011] Using the above control method, when the controller confirms that the sum of the real-time slurry balance in the first mixing tank and the transfer tank is still less than the rated capacity of the transfer tank, the controller can control the first mixing tank to deliver slurry to the transfer tank until the first mixing tank can be emptied for the synthesis of new slurry. This eliminates the need for manual opening of the tank to confirm the slurry balance, allowing for accurate determination of whether the first mixing tank has completely discharged slurry, improving accuracy and production efficiency. Furthermore, the slurry in the mixing tank is less likely to be contaminated by opening the tank.

[0012] In one embodiment, the slurry conveying system further includes a feeding device connected to the first mixing tank and communicatively connected to the controller;

[0013] After the ratio of the real-time residual amount of slurry in the first mixing tank to the calibrated capacity of the first mixing tank falls within a first preset range, the control method further includes:

[0014] The controller controls the feeding device to deliver materials to the first mixing tank;

[0015] The controller controls the first mixing tank to stir in order to synthesize a new slurry.

[0016] Using the above control method, after confirming that the first mixing tank has completely discharged material, the controller can control the feeding device to deliver material to the first mixing tank and control the mixing of the first mixing tank to synthesize a new slurry. This ensures the supply of slurry in the transfer tank, and the preparation and transportation of slurry can be automatically cyclical, improving production efficiency.

[0017] In one embodiment, the slurry conveying system further includes a second mixing tank, which is connected to a transfer tank and is communicatively connected to a controller.

[0018] After the ratio of the real-time residual amount of slurry in the first mixing tank to the calibrated capacity of the first mixing tank falls within a first preset range, the control method further includes:

[0019] The controller confirms the real-time slurry level in the transfer tank transmitted by the second detector; when the real-time slurry level in the transfer tank is less than the calibrated capacity of the transfer tank, the controller confirms whether the transfer tank is supplying slurry to the outside of the transfer tank.

[0020] When the transfer tank does not supply slurry to the outside of the transfer tank, the controller confirms the real-time slurry balance in the second mixing tank;

[0021] When the sum of the real-time slurry balance in the second mixing tank and the real-time slurry balance in the transfer tank is less than the rated capacity of the transfer tank, the controller controls the second mixing tank to deliver slurry to the transfer tank until the ratio of the real-time slurry balance in the second mixing tank to the rated capacity of the second mixing tank is within the first preset range.

[0022] or,

[0023] When the ratio of the real-time slurry balance in the second mixing tank to the rated capacity of the second mixing tank is within a second preset range, the controller controls the second mixing tank to deliver slurry to the transfer tank.

[0024] Through the above control method, when the transfer tank is not supplying slurry to the outside (i.e., the transfer tank is in a non-operating state), and the sum of the real-time slurry balance in the second mixing tank and the transfer tank is less than the rated capacity of the transfer tank, the second mixing tank can supply slurry to the transfer tank until the ratio of the real-time slurry balance in the second mixing tank to its rated capacity is within a first preset range, that is, the slurry in the second mixing tank is emptied or basically emptied; or when the transfer tank is not supplying slurry to the outside (i.e., the transfer tank is in a non-operating state), and the ratio of the real-time slurry balance in the second mixing tank to its rated capacity is within a second preset range, the second mixing tank can supply slurry to the transfer tank until the ratio of the real-time slurry balance in the transfer tank to its rated capacity is within a second preset range. In this way, the slurry supply in the transfer tank is less likely to be interrupted, which helps ensure the supply of slurry in the transfer tank and improves production efficiency.

[0025] In one embodiment, the slurry conveying system further includes a temporary storage tank assembly connected to a transfer tank and connected to the coating head of a coating machine.

[0026] Control methods also include:

[0027] The controller confirms the real-time slurry level in the transfer tank transmitted by the second detector;

[0028] When the ratio of the real-time slurry balance in the transfer tank to the calibrated capacity of the transfer tank is within the second preset range, the controller confirms the real-time slurry balance of the temporary storage tank assembly.

[0029] When the real-time slurry reserve of the temporary storage tank assembly is less than the rated capacity of the temporary storage tank assembly, the controller controls the transfer tank to deliver slurry to the temporary storage tank assembly.

[0030] The above control method enables the transfer tank to automatically supply slurry to the temporary storage tank assembly, which in turn allows the temporary storage tank assembly to supply slurry to the coating head of the coating machine, thereby realizing the coating process of the coating machine and improving production efficiency.

[0031] In one embodiment, after the new slurry is synthesized in the first mixing tank, the control method further includes:

[0032] The controller confirms whether the transfer tank is supplying slurry to the temporary storage tank assembly;

[0033] When the transfer tank delivers slurry to the temporary storage tank assembly, the controller controls the transfer tank to continue delivering slurry to the temporary storage tank assembly until the ratio of the real-time slurry balance in the transfer tank to the rated capacity of the transfer tank is within a first preset range, or the ratio of the real-time slurry balance in the temporary storage tank assembly to the rated capacity of the temporary storage tank assembly is within a second preset range.

[0034] When the transfer tank does not supply slurry to the temporary storage tank assembly, the controller controls the first mixing tank to supply slurry to the temporary storage tank assembly until the ratio of the real-time slurry balance in the transfer tank to the rated capacity of the transfer tank is within a second preset range.

[0035] Through the above control method, after the synthesis of new slurry is completed in the first mixing tank, the slurry can be transported to the transfer tank, thereby realizing the automated transport from the first mixing tank to the transfer tank, that is, the automated transport of primary transport can be realized, which is conducive to improving production efficiency.

[0036] In one embodiment, the temporary storage tank assembly includes a first temporary storage tank, a second temporary storage tank, and a third temporary storage tank. The first, second, and third temporary storage tanks are all connected to a transfer tank. The first and third temporary storage tanks are connected to the head coating head of the coating machine, and the second temporary storage tank is connected to the tail coating head of the coating machine.

[0037] Control methods also include:

[0038] When the ratio of the real-time slurry balance in the transfer tank to the rated capacity of the transfer tank is within the second preset range, the controller confirms whether the first mixing tank is supplying slurry to the transfer tank.

[0039] When the first mixing tank is feeding slurry into the transfer tank, the controller controls the first mixing tank to stop feeding slurry into the transfer tank;

[0040] When the first mixing tank does not supply slurry to the transfer tank, the controller confirms the real-time slurry balance in the first temporary storage tank, the second temporary storage tank, and the third temporary storage tank;

[0041] When the real-time slurry balance in the first temporary storage tank, the real-time slurry balance in the second temporary storage tank, and the real-time slurry balance in the third temporary storage tank are less than their respective rated capacities, the controller controls the transfer tank to deliver slurry to the first, second, or third temporary storage tank.

[0042] When the ratio of the real-time slurry balance in the first, second, or third temporary storage tank to its respective rated capacity falls within a second preset range, the controller controls the transfer tank to suspend the slurry delivery to the first, second, or third temporary storage tank.

[0043] The above control method can realize the automated conveying of slurry in the transfer tank to the first temporary storage tank, the second temporary storage tank and the third temporary storage tank, thereby improving production efficiency.

[0044] In one embodiment, before the controller controls the transfer tank to deliver slurry to the first temporary storage tank, the second temporary storage tank, or the third temporary storage tank, the control method further includes:

[0045] The controller confirms whether the first and third temporary storage tanks are supplying slurry to the coating head of the coating machine;

[0046] When the first and third temporary storage tanks are not supplying slurry to the coating head of the coating machine, the controller confirms the real-time slurry levels in the first and third temporary storage tanks; or,

[0047] The controller confirms whether the second temporary storage tank is supplying slurry to the coating head at the tail of the coating machine;

[0048] When the second storage tank does not supply slurry to the coating head at the tail of the coating machine, the controller confirms the real-time slurry level in the second storage tank.

[0049] Using the above control method, when the first and third temporary storage tanks are supplying slurry to the coating head of the coating machine, the transfer tank can pause supplying slurry to the first and third temporary storage tanks without interfering with the slurry output from the first and second temporary storage tanks. Similarly, when the second temporary storage tank is supplying slurry to the coating head of the coating machine, the transfer tank can pause supplying slurry to the second temporary storage tank without interfering with the slurry output from the second temporary storage tank.

[0050] In one embodiment, the process of the controller controlling the transfer tank to deliver slurry to the first temporary storage tank, the second temporary storage tank, or the third temporary storage tank includes:

[0051] When the real-time slurry balance in the first temporary storage tank is less than the real-time slurry balance in the second and third temporary storage tanks, the controller controls the transfer tank to deliver slurry to the first temporary storage tank until the ratio of the real-time slurry balance in the first temporary storage tank to its rated capacity is within a second preset range. Then, the controller controls the transfer tank to deliver slurry to the second temporary storage tank until the ratio of the real-time slurry balance in the second temporary storage tank to its rated capacity is within a second preset range.

[0052] The above control method can achieve a reasonable distribution of slurry in the transfer tank between the head and tail temporary storage tanks, ensuring that both the head and tail temporary storage tanks contain slurry. This ensures that slurry can be coated on both the front and back of the electrode, achieving double-sided coating of the electrode and improving production efficiency.

[0053] In one embodiment, after the ratio of the real-time slurry balance in the second temporary storage tank to the calibrated capacity of the second temporary storage tank falls within a second preset range, the control method further includes:

[0054] The controller confirms the real-time remaining amount of slurry in the first temporary storage tank;

[0055] The controller confirms the real-time slurry level in the third temporary storage tank;

[0056] When the real-time slurry balance in the first temporary storage tank is less than the real-time slurry balance in the third temporary storage tank, the controller controls the transfer tank to deliver slurry to the first temporary storage tank until the ratio of the real-time slurry balance in the first temporary storage tank to the calibrated capacity of the first temporary storage tank is within the second preset range.

[0057] When the real-time slurry balance in the first temporary storage tank is greater than that in the third temporary storage tank, the controller controls the transfer tank to deliver slurry to the third temporary storage tank until the ratio of the real-time slurry balance in the third temporary storage tank to the rated capacity of the third temporary storage tank is within the second preset range.

[0058] The above control method can achieve a reasonable distribution of slurry in the transfer tank between the first and third temporary storage tanks, thereby improving production efficiency.

[0059] In one embodiment, the first detector is a laser liquid level sensor, and the first detector is installed inside the first stirring tank;

[0060] Control methods also include:

[0061] Before the controller confirms the real-time slurry level in the first mixing tank transmitted by the first detector, the controller controls the first detector to detect the liquid level height in the first mixing tank.

[0062] Understandably, the first detector uses a laser liquid level sensor, which is suitable for detecting opaque slurries and is easy to install and calibrate, offering good flexibility.

[0063] In one embodiment, the slurry conveying system further includes a diaphragm pump, which is connected to the discharge valve of the first mixing tank, and the outlet of the diaphragm pump is connected to a transfer tank. Both the diaphragm pump and the discharge valve of the first mixing tank are communicatively connected to the controller.

[0064] Control methods also include:

[0065] The controller controls the first mixing tank to deliver slurry to the intermediate tank by opening the discharge valve of the first mixing tank and starting the diaphragm pump. Attached Figure Description

[0066] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0067] Figure 1This is a schematic diagram of a slurry conveying system provided in an embodiment of this application;

[0068] Figure 2 for Figure 1 A flowchart illustrating one embodiment of the control method for the slurry conveying system shown.

[0069] Figure 3 for Figure 1 A schematic diagram of another embodiment of the slurry conveying system shown;

[0070] Figure 4 for Figure 1 A schematic diagram of another embodiment of the slurry conveying system shown;

[0071] Figure 5 for Figure 4 A partial flowchart illustrating one embodiment of the control method for the slurry conveying system shown.

[0072] Figure 6 for Figure 1 A schematic diagram of another embodiment of the slurry conveying system shown;

[0073] Figure 7A for Figure 6 A partial flowchart illustrating one embodiment of the control method for the slurry conveying system shown.

[0074] Figure 7B for Figure 6 A partial flowchart illustrating another embodiment of the control method for the slurry conveying system shown.

[0075] Figure 8 for Figure 1 A schematic diagram of another embodiment of the slurry conveying system shown;

[0076] Figure 9 for Figure 8 A partial flowchart illustrating one embodiment of the control method for the slurry conveying system shown.

[0077] Figure 10 for Figure 1 A schematic diagram of another embodiment of the slurry conveying system shown;

[0078] Figure 11 for Figure 10 A partial flowchart illustrating one embodiment of the control method for the slurry conveying system shown.

[0079] Figure 12 for Figure 1 A schematic diagram of another embodiment of the slurry conveying system shown;

[0080] Figure 13 for Figure 12 A partial flowchart illustrating one embodiment of the control method for the slurry conveying system shown.

[0081] Figure 14A for Figure 12 A partial flowchart illustrating another embodiment of the control method for the slurry conveying system shown.

[0082] Figure 14B for Figure 12 A partial flowchart illustrating another embodiment of the control method for the slurry conveying system shown.

[0083] Figure 15 for Figure 12 A partial flowchart illustrating another embodiment of the control method for the slurry conveying system shown.

[0084] Figure 16A for Figure 12 A partial flowchart illustrating another embodiment of the control method for the slurry conveying system shown.

[0085] Figure 16B for Figure 12 A partial flowchart illustrating another embodiment of the control method for the slurry conveying system shown.

[0086] Figure 17 for Figure 1 A schematic diagram of another embodiment of the slurry conveying system shown.

[0087] The terms corresponding to the labels in the figures are:

[0088] 100 Slurry conveying system, 101 First detector, 102 Second detector, 103 Controller, 104 Third detector, 11 First mixing tank, 111 Discharge valve of the first mixing tank, 12 Second mixing tank, 121 Discharge valve of the second mixing tank, 20 Transfer tank, 21 Discharge valve of the transfer tank, 30 Temporary storage tank assembly, 31 First temporary storage tank, 32 Second temporary storage tank, 33 Third temporary storage tank, 34 Fourth temporary storage tank, 40 Feeding device, 41 Material valve, 50 Diaphragm pump, 60 Magnetic filter, 70 Screw pump. Detailed Implementation

[0089] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only the first part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0090] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a slurry conveying system 100 provided in an embodiment of this application.

[0091] The slurry conveying system 100 can be used in a coating machine to make positive and negative electrode slurries for batteries and to convey the made slurries to the coating head of the coating machine to realize the electrode coating process.

[0092] The slurry delivery system 100 may include a first mixing tank 11, a transfer tank 20, a first detector 101, a second detector 102, and a controller 103. Materials can be stirred in the first mixing tank 11 to prepare electrode slurry. After sampling and testing to ensure compliance, the slurry in the first mixing tank 11 is slowly stirred and awaits discharge. The first mixing tank 11 is connected to the transfer tank 20. The first mixing tank 11 is used to deliver slurry to the transfer tank 20. Exemplarily, the first mixing tank 11 and the transfer tank 20 can be connected via a pipeline. After the slurry is prepared in the first mixing tank 11, it can flow to the transfer tank 20 via a pipeline. It is understood that the delivery of slurry from the first mixing tank 11 to the transfer tank 20 is a primary slurry delivery.

[0093] A first detector 101 is located in the first mixing tank 11. A second detector 102 is located in the transfer tank 20. A controller 103 is communicatively connected to the first detector 101, the second detector 102, and the first mixing tank 11. The controller 103 can determine the real-time slurry level in the first mixing tank 11 based on the detection data from the first detector 101. The controller 103 can determine the real-time slurry level in the transfer tank 20 based on the detection data from the second detector 102. The controller 103 can be used to control the delivery of slurry from the first mixing tank 11 to the transfer tank 20. For example, the controller 103 can be a computer, etc.

[0094] In the following embodiments, based on Figure 1 The structure of the slurry conveying system 100 shown is used to specifically describe the management method of the slurry conveying system 100 provided in the embodiments of this application.

[0095] In one embodiment, through the following steps S100, S200, and S300, the controller 103 can control the first mixing tank 11 to deliver slurry to the transfer tank 20, so that the first mixing tank 11 can be emptied of slurry. After the first mixing tank 11 is emptied of slurry, it can be used for the synthesis of new slurry. In this way, it is not necessary to manually observe the first mixing tank 11 with an observation light at the observation port, or even lower the tank to determine whether the slurry has been completely discharged, which improves accuracy and production efficiency, and the slurry in the first mixing tank 11 is less likely to be contaminated by opening the tank.

[0096] Please see Figure 1 and Figure 2 , Figure 2 for Figure 1 The diagram illustrates a flow chart of one embodiment of the control method for the slurry conveying system 100. This control method includes, but is not limited to, steps S100, S200, and S300. Furthermore, the order of steps S100 and S200 can be interchanged. This application does not impose specific limitations.

[0097] S100 controller 103 confirms the real-time slurry balance in the first mixing tank 11 transmitted by the first detector 101.

[0098] Understandably, the first detector 101 can be a laser liquid level sensor used to detect the liquid level height inside the first mixing tank 11. The real-time slurry level in the first mixing tank 11 can be obtained from the liquid level height; that is, the liquid level height information in the first mixing tank 11 contains the real-time slurry level information. The controller 103 can confirm the liquid level height information transmitted by the first detector 101 to determine the real-time slurry level in the first mixing tank 11.

[0099] S200 controller 103 confirms the real-time slurry balance in transfer tank 20 transmitted by second detector 102.

[0100] Understandably, the second detector 102 can be a weighbridge used to detect the weight of the transfer tank 20. The real-time slurry balance in the transfer tank 20 can be obtained from its weight; that is, the weight information of the transfer tank 20 contains information about its real-time slurry balance. The controller 103 can confirm the weight information of the transfer tank 20 transmitted by the second detector 102 to verify the real-time slurry balance in the transfer tank 20.

[0101] In step S300, when the sum of the real-time slurry balance in transfer tank 20 and the real-time slurry balance in first mixing tank 11 is less than the rated capacity of transfer tank 20, controller 103 controls first mixing tank 11 to supply slurry to transfer tank 20 until the ratio of the real-time slurry balance in first mixing tank 11 to its rated capacity falls within a first preset range. It is understood that if the sum of the real-time slurry balance in transfer tank 20 and the real-time slurry balance in first mixing tank 11 is greater than or equal to the rated capacity of transfer tank 20, the process returns to the above steps, for example, step S100. The rated capacity of transfer tank 20 can be a preset slurry capacity. The rated capacity of transfer tank 20 can be less than or equal to its upper limit capacity. The upper limit capacity of transfer tank 20 is its maximum capacity. The real-time slurry balance in transfer tank 20 is less than or equal to its upper limit capacity.

[0102] The first preset range is between 0 and 0.1, and includes cases of 0 and 0.1. The ratio of the real-time slurry balance in the first mixing tank 11 to the calibrated capacity of the first mixing tank 11 within the first preset range refers to the situation where the slurry in the first mixing tank 11 is completely emptied, that is, the real-time slurry balance in the first mixing tank 11 is zero. In this case, the slurry in the first mixing tank 11 can be completely emptied. Alternatively, the slurry in the first mixing tank 11 can be essentially emptied, meaning that some slurry remains in the first mixing tank 11, and the amount of remaining slurry is within the allowable error range.

[0103] Through the aforementioned steps S100, S200, and S300, when the controller 103 confirms that the sum of the real-time slurry balance in the transfer tank 20 and the real-time slurry balance in the first mixing tank 11 is less than the rated capacity of the transfer tank 20, the controller 103 can control the first mixing tank 11 to deliver slurry to the transfer tank 20 until the first mixing tank 11 can be emptied. In this way, it is not necessary to manually open the tank to confirm the real-time slurry balance in the first mixing tank 11 to accurately determine whether the first mixing tank 11 has completely discharged slurry for the next batch of slurry production. In other words, if the controller 103 confirms that even after all the slurry in the first mixing tank 11 has been delivered to the transfer tank 20, the real-time slurry balance in the transfer tank 20 is still less than the rated capacity of the transfer tank 20, the controller 103 can control the first mixing tank 11 to deliver slurry to the transfer tank 20 until the first mixing tank 11 can be emptied. It is understandable that the descriptions of the first preset range and the calibrated capacity of the first mixing tank 11 can be found in the above descriptions of the first preset range and the calibrated capacity of the transfer tank 20, and will not be repeated here.

[0104] In one embodiment, the first detector 101 is a laser liquid level sensor, and the first detector 101 is installed inside the first mixing tank 11. Specifically, the first detector 101 can be fixed to the top cover of the first mixing tank 11 or the top of the side wall of the first mixing tank 11. The first detector 101 can detect the liquid level height inside the first mixing tank 11.

[0105] The control method for the slurry conveying system 100 may further include: before the controller 103 confirms the real-time slurry level in the first mixing tank 11 transmitted by the first detector 101, the controller 103 controls the first detector 101 to detect the liquid level in the first mixing tank 11. The controller 103 can confirm the real-time slurry level in the first mixing tank 11 based on the liquid level information in the first mixing tank 11.

[0106] Understandably, laser liquid level sensors are suitable for detecting opaque slurries and are easy to install and calibrate, offering good flexibility. The laser liquid level sensor detects the liquid level in the first mixing tank 11 (the liquid level in the first mixing tank 11 is the installation height of the first detector 101 minus the distance between the first detector 101 and the liquid level in the first mixing tank 11) by emitting and receiving reflected laser light, thus determining the real-time slurry level in the first mixing tank 11. Detecting the real-time slurry level in the first mixing tank 11 using the first detector 101 provides high accuracy, eliminates the need for manual tank opening for confirmation, improves production efficiency, and reduces the risk of contamination of the slurry in the first mixing tank 11.

[0107] In another embodiment, the first detector 101 can also be an ultrasonic liquid level sensor. Ultrasonic liquid level sensors are easy to install and offer good flexibility. The ultrasonic liquid level sensor can be installed on the top cover of the first mixing tank 11 or on the top of the side wall of the first mixing tank 11. It is understood that the ultrasonic liquid level sensor can calculate the liquid level height inside the first mixing tank 11 by detecting the time difference between the transmission and reflection of ultrasonic waves.

[0108] In another embodiment, the first detector 101 can also be an electrical liquid level sensor. Electrical liquid level sensors can include resistive sensors, capacitive sensors, and inductive sensors, etc. Electrical liquid level sensors can indirectly obtain the liquid level height information in the first mixing tank 11 by measuring the electrical characteristics of the slurry within the first mixing tank 11. It is understood that the measurement of the liquid level height in the first mixing tank 11 by electrical liquid level sensors is a contact-based measurement. For example, a capacitive sensor requires inserting a probe into the slurry in the first mixing tank 11 and indirectly measures the liquid level height by outputting high and low potentials.

[0109] In another embodiment, the first detector 101 can also be a pressure sensor, for example, a high-precision, flush-mount pressure sensor. The pressure sensor can be installed inside the first mixing tank 11 and located at the bottom of the first mixing tank 11. The pressure sensor can calculate the liquid level height inside the first mixing tank 11 by detecting the liquid pressure at the bottom of the first mixing tank 11. The detection by the pressure sensor is not limited by the liquid level height inside the first mixing tank 11.

[0110] The second detector 102 is installed on the transfer tank 20. For example, the second detector 102 can be a weighbridge used to detect the weight of the transfer tank 20. The second detector 102 can be installed at the bottom of the transfer tank 20. It is understood that the real-time remaining amount of slurry in the transfer tank 20 can be obtained from the weight of the transfer tank 20.

[0111] Please see Figure 3 , Figure 3 for Figure 1A schematic diagram of another embodiment of the slurry conveying system 100 shown.

[0112] In one embodiment, the slurry delivery system 100 further includes a diaphragm pump 50, which is connected to the discharge valve 111 of the first mixing tank, and its outlet is connected to the transfer tank 20. The first mixing tank 11 can deliver slurry to the transfer tank 20 via the diaphragm pump 50. Both the diaphragm pump 50 and the discharge valve 111 of the first mixing tank are communicatively connected to a controller 103. The controller 103 can control the delivery of slurry from the first mixing tank 11 to the transfer tank 20 by controlling the diaphragm pump 50 and the discharge valve 111 of the first mixing tank. It is understood that the controller 103 can open the discharge valve 111 of the first mixing tank and start the diaphragm pump 50 to allow the slurry in the first mixing tank 11 to be delivered to the transfer tank 20 via pipeline.

[0113] The control method of the slurry conveying system 100 may also include: the controller 103 controls the discharge valve 111 of the first mixing tank to open and the diaphragm pump 50 to start, so as to control the first mixing tank 11 to convey slurry to the transfer tank 20.

[0114] In one embodiment, a magnetic filter 60 may be provided between the diaphragm pump 50 and the transfer tank 20. The slurry can pass through the magnetic filter 60 to remove magnetic substances. A valve may be provided between the magnetic filter 60 and the transfer tank 20, which can be used to control the slurry delivery from the first mixing tank 11 to the transfer tank 20. It is understood that after the slurry is prepared in the first mixing tank 11, it flows out of the first mixing tank 10 through the discharge valve 111, passes through the diaphragm pump 50 and the magnetic filter 60, and then flows to the transfer tank 20.

[0115] Please see Figure 4 , Figure 4 for Figure 1 A schematic diagram of another embodiment of the slurry conveying system 100 shown.

[0116] The slurry conveying system 100 also includes a feeding device 40. The feeding device 40 is located upstream of the first mixing tank 11 and can be used to feed material into the first mixing tank 11. The feeding device 40 is connected to the first mixing tank 11. Exemplarily, the first mixing tank 11 and the transfer tank 20 can be connected via a pipeline.

[0117] The feeding device 40 is also communicatively connected to the controller 103. The controller 103 can be used to control the feeding device 40 to deliver slurry to the first mixing tank 11 and to control the first mixing tank 11 to stir in order to synthesize a new slurry.

[0118] Please see Figure 4 and Figure 5 , Figure 5for Figure 4 The diagram shows a partial flow chart of one embodiment of the control method for the slurry conveying system 100. The control method for the slurry conveying system 100 also includes, but is not limited to, steps S310 and S320. S310 and S320 are optional steps following S100, S200, and S300. To avoid further detail, see attached... Figure 5 Only S310 and S320 are described. Furthermore, the control method of the slurry conveying system 100 in this embodiment is partially the same as the control method of the slurry conveying system 100 in the above embodiments, and will not be repeated here. Detailed descriptions of S310 and S320 are as follows.

[0119] After S300, S310 controller 103 controls the feeding device 40 to deliver material to the first mixing tank 11.

[0120] The S320 controller 103 controls the first mixing tank 11 to stir in order to synthesize a new slurry.

[0121] Understandably, through the aforementioned steps S310 and S320, after confirming that the first mixing tank 11 has completely discharged material, the controller 103 can control the feeding device 40 to deliver material to the first mixing tank 11 and control the first mixing tank 11 to stir, so as to synthesize a new slurry. In this way, the supply of slurry in the transfer tank 20, the preparation and transportation of slurry can be automatically circulated, and the production efficiency is improved.

[0122] In one embodiment, a material valve 41 may be provided between the feeding device 40 and the first mixing tank 11. The material valve 41 connects the feeding device 40 and the first mixing tank 11. The material valve 41 can be used to control the delivery of material from the feeding device 40 to the first mixing tank 11. The material valve 41 can be communicatively connected to a controller 103, which can control the opening of the material valve 41, thereby allowing the feeding device 40 to deliver material to the first mixing tank 11.

[0123] Please see Figure 6 , Figure 6 for Figure 1 A schematic diagram of another embodiment of the slurry conveying system 100 shown.

[0124] The slurry conveying system 100 also includes a second mixing tank 12. The second mixing tank 12 is connected to the transfer tank 20. The second mixing tank 12 is also communicatively connected to a controller 103. The controller 103 can be used to control the second mixing tank 12 to convey slurry to the transfer tank 20. It is understood that the feeding device 40, the second mixing tank 12, and the transfer tank 20 are connected in sequence. The feeding device 40 can be used to convey material to the second mixing tank 12. The material can be stirred in the second mixing tank 12 to prepare electrode slurry. It is understood that after the slurry is prepared in the second mixing tank 12, it flows out of the second mixing tank 12 through the discharge valve, and after passing through a diaphragm pump and a magnetic filter, flows to the transfer tank 20.

[0125] Please see Figure 6 and Figure 7A , Figure 7A for Figure 6 The diagram shows a partial flow chart of one embodiment of the control method for the slurry conveying system 100. The control method for the slurry conveying system 100 also includes, but is not limited to, steps S330, S331, and S340. S330, S331, and S340 are optional steps following S100, S200, and S300. To avoid further detail, see attached... Figure 7A Only S330, S331, and S340 are described. Furthermore, the control method of the slurry conveying system 100 in this embodiment is partially the same as the control method of the slurry conveying system 100 in the above embodiments, and will not be repeated here. Detailed descriptions of S330, S331, and S340 are as follows.

[0126] In one implementation, after S300, controller 103 confirms the real-time slurry balance of transfer tank 20 transmitted by second detector 102 in S330.

[0127] When the real-time slurry reserve in transfer tank 20 is less than the rated capacity of transfer tank 20, controller 103 confirms whether transfer tank 20 is supplying slurry to the outside of transfer tank 20. It is understood that when the real-time slurry reserve in transfer tank 20 is greater than or equal to the rated capacity of transfer tank 20, the above steps are returned, for example, S330.

[0128] In step S331, when the transfer tank 20 is not supplying slurry to the outside of the transfer tank 20, the controller 103 confirms the real-time slurry balance in the second mixing tank 12. It is understood that when the transfer tank 20 is supplying slurry to the outside of the transfer tank 20, that is, when the transfer tank 20 is in operation, the above steps are returned, for example, step S330.

[0129] S340 When the sum of the real-time slurry balance in the second mixing tank 12 and the real-time slurry balance in the transfer tank 20 is less than the rated capacity of the transfer tank 20, the controller 103 controls the second mixing tank 12 to supply slurry to the transfer tank 20 until the ratio of the real-time slurry balance in the second mixing tank 12 to the rated capacity of the second mixing tank 12 is within a first preset range. It can be understood that when the sum of the real-time slurry balance in the second mixing tank 12 and the real-time slurry balance in the transfer tank 20 is greater than or equal to the rated capacity of the transfer tank 20, the process returns to the above steps, for example, S331.

[0130] Understandably, through the aforementioned steps S330, S331, and S340, when the transfer tank 20 is not supplying slurry to the outside (i.e., the transfer tank 20 is in a non-operating state), and the sum of the real-time slurry balance in the second mixing tank 12 and the real-time slurry balance in the transfer tank 20 is less than the rated capacity of the transfer tank 20, the second mixing tank 12 can supply slurry to the transfer tank 20 until the ratio of the real-time slurry balance in the second mixing tank 12 to its rated capacity falls within a first preset range, i.e., the slurry in the second mixing tank 12 is emptied or substantially emptied. This prevents slurry supply interruptions in the transfer tank 20, ensuring a stable supply and improving production efficiency. The first preset range and the rated capacity of the second mixing tank 12 can be found in the descriptions above regarding the first preset range and the rated capacity of the transfer tank 20; further details are omitted here.

[0131] Please see Figure 6 and Figure 7B , Figure 7B for Figure 6 The diagram shows a partial flow chart of another embodiment of the control method for the slurry conveying system 100. The control method for the slurry conveying system 100 also includes, but is not limited to, steps S330, S331, and S340. S330, S331, and S340 are optional steps following S100, S200, and S300 described above. To avoid further detail, see attached... Figure 7B Only S330, S331, and S340 are described. Furthermore, the control method of the slurry conveying system 100 in this embodiment is partially the same as the control method of the slurry conveying system 100 in the above embodiments, and will not be repeated here. Detailed descriptions of S330, S331, and S340 are as follows.

[0132] In another implementation, after S300, controller 103 confirms the real-time slurry balance of transfer tank 20 transmitted by second detector 102 in S330.

[0133] When the real-time slurry reserve in transfer tank 20 is less than the rated capacity of transfer tank 20, controller 103 confirms whether transfer tank 20 is supplying slurry to the outside of transfer tank 20. It is understood that when the real-time slurry reserve in transfer tank 20 is greater than or equal to the rated capacity of transfer tank 20, the above steps are returned, for example, S330.

[0134] In step S331, when the transfer tank 20 is not supplying slurry to the outside of the transfer tank 20, the controller 103 confirms the real-time slurry balance in the second mixing tank 12. It is understood that when the transfer tank 20 is supplying slurry to the outside of the transfer tank 20, that is, when the transfer tank 20 is in operation, the above steps are returned, for example, step S330.

[0135] S340 When the ratio of the real-time slurry balance in the second mixing tank 12 to the rated capacity of the second mixing tank 12 is within a second preset range, the controller 103 controls the second mixing tank 12 to deliver slurry to the transfer tank 20. It is understood that when the ratio of the real-time slurry balance in the second mixing tank 12 to the rated capacity of the second mixing tank 12 is not within the second preset range, the above steps are returned, for example, S331.

[0136] The second preset range is between 0.9 and 1.1, and includes cases where 0.9 and 1.1 are included. The ratio of the real-time slurry balance in the second mixing tank 12 to its rated capacity within the second preset range refers to the situation where the real-time slurry balance in the second mixing tank 12 reaches or substantially reaches its rated capacity. The rated capacity of the second mixing tank 12 can be referenced in the description of the rated capacity of the transfer tank 20 above, and will not be repeated here. The slurry balance in the second mixing tank 12 can be equal to the rated capacity of the transfer tank 20; the slurry balance in the second mixing tank 12 can be slightly less than its rated capacity within the allowable error range; when the rated capacity of the second mixing tank 12 is less than its upper limit capacity, the slurry balance in the second mixing tank 12 can be slightly greater than its rated capacity within the allowable error range.

[0137] Understandably, through the aforementioned steps S330, S331, and S340, when the transfer tank 20 is not supplying slurry to the outside (i.e., the transfer tank 20 is in a non-operating state), and the ratio of the real-time slurry balance in the second mixing tank 12 to the rated capacity of the second mixing tank 12 is within a second preset range, the second mixing tank 12 can supply slurry to the transfer tank 20 until the ratio of the real-time slurry balance in the transfer tank 20 to the rated capacity of the transfer tank 20 is within the second preset range. This prevents slurry supply interruptions in the transfer tank 20, ensuring a stable slurry supply and improving production efficiency.

[0138] In one embodiment, the slurry conveying system 100 may further include a third detector 104. The third detector 104 may be installed in the second mixing tank 12 and is used to detect the real-time slurry level in the second mixing tank 12. The third detector 104 may be a laser level sensor, an ultrasonic level sensor, an electrical level sensor, or a pressure sensor. It is understood that the structure and arrangement of the second mixing tank 12 and the third detector 104 can refer to the structure and arrangement of the first mixing tank 11 and the first detector 101. The connection method between the second mixing tank 12 and the feeding device 40 and the transfer tank 20 can refer to the connection method between the first mixing tank 11 and the feeding device 40 and the transfer tank 20. Specific details will not be elaborated here.

[0139] Please see Figure 8 , Figure 8 for Figure 1 A schematic diagram of another embodiment of the slurry conveying system 100 shown.

[0140] The slurry delivery system 100 also includes a temporary storage tank assembly 30. The temporary storage tank assembly 30 is connected to a transfer tank 20. Exemplarily, the temporary storage tank assembly 30 and the transfer tank 20 can be connected via a pipeline. The transfer tank 20 can be used to deliver slurry to the temporary storage tank assembly 30. The delivery of slurry from the transfer tank 20 to the temporary storage tank assembly 30 can be understood as a secondary slurry delivery. When the transfer tank 20 delivers slurry to the temporary storage tank assembly 30, the first mixing tank 11 suspends its delivery of slurry to the transfer tank 20. The temporary storage tank assembly 30 is also connected to the coating head of a coating machine for supplying slurry to the coating head of the coating machine. When the temporary storage tank assembly 30 delivers slurry to the coating head of the coating machine, the transfer tank 20 suspends its delivery of slurry to the temporary storage tank assembly 30.

[0141] The transfer tank 20 is connected to the controller 103. The controller 103 can also be used to control the transfer tank 20 to deliver slurry to the temporary storage tank assembly 30.

[0142] Please see Figure 8 and Figure 9 , Figure 9 for Figure 8 The diagram shows a partial flowchart of one embodiment of the control method for the slurry conveying system 100. The control method for the slurry conveying system 100 also includes, but is not limited to, steps S350, S360, and S370. S350, S360, and S370 are optional steps following S320. To avoid further detail, see attached... Figure 9Only S350, S360, and S370 are given. Furthermore, the order of S350 and S360 can also be interchanged. This application does not impose specific limitations. In addition, the control method of the slurry conveying system 100 in this embodiment is partially the same as the control method of the slurry conveying system 100 in the above embodiments, and the technical content will not be repeated. A detailed description of S350, S360, and S370 is as follows.

[0143] After S320, the S350 controller 103 confirms the real-time slurry balance in the transfer tank 20 transmitted by the second detector 102.

[0144] In step S360, when the ratio of the real-time slurry balance in transfer tank 20 to the rated capacity of transfer tank 20 is within the second preset range, controller 103 confirms the real-time slurry balance in temporary storage tank assembly 30. It is understood that if the ratio of the real-time slurry balance in transfer tank 20 to the rated capacity of transfer tank 20 is not within the second preset range, the process returns to the above steps, for example, step S350.

[0145] S370 When the real-time slurry balance in the temporary storage tank assembly 30 is less than the rated capacity of the temporary storage tank assembly 30, the controller 103 controls the transfer tank 20 to deliver slurry to the temporary storage tank assembly 30. It can be understood that when the real-time slurry balance in the temporary storage tank assembly 30 is greater than or equal to the rated capacity of the temporary storage tank assembly 30, the above steps are returned, for example, S360.

[0146] The ratio of the real-time slurry balance in transfer tank 20 to its calibrated capacity within the second preset range refers to the situation where the real-time slurry balance in transfer tank 20 reaches its calibrated capacity. In this case, the slurry balance in transfer tank 20 can be equal to its calibrated capacity; the slurry balance in transfer tank 20 can be slightly less than its calibrated capacity within the allowable error range; and when the calibrated capacity of transfer tank 20 is less than its upper limit capacity, the slurry balance in transfer tank 20 can be slightly greater than its calibrated capacity within the allowable error range. The calibrated capacity of the temporary storage tank assembly 30 can be found in the descriptions of the second preset range and the calibrated capacity of transfer tank 20 above, and will not be elaborated upon here.

[0147] It is understandable that through the above-mentioned S350, S360 and S370, the transfer tank 20 can automatically provide slurry to the temporary storage tank assembly 30, so that the temporary storage tank assembly 30 can provide slurry to the coating head of the coating machine to realize the coating process of the coating machine, which is conducive to improving production efficiency.

[0148] Please see Figure 10 , Figure 10 for Figure 1The diagram shows another embodiment of the slurry delivery system 100. In one embodiment, the slurry delivery system 100 may further include a screw pump 70. The discharge valve 21 of the transfer tank can be connected to the screw pump 70 via a pipeline. The outlet of the screw pump 70 can be connected to the temporary storage tank assembly 30. The transfer tank 20 can deliver slurry to the temporary storage tank assembly 30 via the screw pump 70.

[0149] The controller 103 can communicate with the screw pump 70 and the discharge valve 21 of the transfer tank.

[0150] The control method of the slurry conveying system may also include: the controller 103 controls the discharge valve 111 of the first mixing tank to open and the screw pump 70 to start, so as to control the transfer tank 20 to convey slurry to the temporary storage tank assembly 30.

[0151] For example, a valve may also be provided between the screw pump 70 and the temporary storage tank assembly 30, which can be used to control the slurry delivery from the transfer tank 20 to the temporary storage tank assembly 30. It is understood that the slurry flowing from the first mixing tank 11 to the transfer tank 20 can flow out of the transfer tank 20 through the discharge valve 21, and after passing through the screw pump 70, flow to the temporary storage tank assembly 30.

[0152] Please see Figure 10 and Figure 11 , Figure 11 for Figure 10 The diagram shows a partial flowchart of one embodiment of the control method for the slurry conveying system 100. The control method for the slurry conveying system 100 also includes, but is not limited to, steps S380, S391, and S392. S380, S391, and S392 are optional steps following S310 and S320. To avoid further detail, see attached... Figure 11 Only S380, S391, and S392 are described. Furthermore, the control method of the slurry conveying system 100 in this embodiment is partially the same as the control method of the slurry conveying system 100 in the above embodiments, and will not be repeated here. Detailed descriptions of S380, S391, and S392 are as follows.

[0153] After S320, controller 103 in S380 confirms whether transfer tank 20 is supplying slurry to temporary storage tank assembly 30.

[0154] When the transfer tank 20 delivers slurry to the temporary storage tank assembly 30 in S391, the controller 103 controls the transfer tank 20 to continue delivering slurry to the temporary storage tank assembly 30 until the ratio of the real-time slurry balance of the transfer tank 20 to the rated capacity of the transfer tank 20 is within a first preset range, or the ratio of the real-time slurry balance of the temporary storage tank assembly 30 to the rated capacity of the temporary storage tank assembly 30 is within a second preset range.

[0155] When the transfer tank 20 does not supply slurry to the temporary storage tank assembly 30 in S392, the controller 103 controls the first mixing tank 11 to supply slurry to the temporary storage tank assembly 30 until the ratio of the real-time slurry balance in the transfer tank 20 to the rated capacity of the transfer tank 20 is within the second preset range.

[0156] It is understandable that the ratio of the real-time slurry balance of the temporary storage tank assembly 30 to the rated capacity of the temporary storage tank assembly 30 within the second preset range includes the case where the real-time slurry balance of the temporary storage tank assembly 30 is equal to the rated capacity of the temporary storage tank assembly 30. Through the above steps S380, S391, and S392, after the synthesis of new slurry is completed in the first mixing tank 11, slurry can be conveyed to the transfer tank 20, thereby achieving automated conveying from the first mixing tank 11 to the transfer tank 20, that is, achieving automated primary conveying, which is beneficial to improving production efficiency.

[0157] Please see Figure 12 , Figure 12 for Figure 1 A schematic diagram of another embodiment of the slurry conveying system 100 shown.

[0158] The slurry conveying system 100 also includes a first temporary storage tank 31, a second temporary storage tank 32, and a third temporary storage tank 33. It is understood that the temporary storage tank assembly 30 may include the first temporary storage tank 31, the second temporary storage tank 32, and the third temporary storage tank 33. The first temporary storage tank 31, the second temporary storage tank 32, and the third temporary storage tank 33 are all connected to a transfer tank 20. The transfer tank 20 can convey slurry to the first temporary storage tank 31, the second temporary storage tank 32, and the third temporary storage tank 33. It is understood that the slurry flowing from the first mixing tank 11 to the transfer tank 20 can flow out of the transfer tank 20 through the discharge valve 21, pass through the screw pump 70, and then flow to one of the first temporary storage tank 31, the second temporary storage tank 32, and the third temporary storage tank 33.

[0159] The first and third temporary storage tanks 31 and 33 are connected to the head coating head of the coating machine and are used to supply slurry to the head coating head. The first and third temporary storage tanks 31 and 33 can be understood as head temporary storage tanks. The second temporary storage tank 32 is connected to the tail coating head of the coating machine and is used to supply slurry to the tail coating head. The second temporary storage tank 32 can be understood as a tail temporary storage tank. It is understood that by setting head and tail temporary storage tanks to supply slurry to the head and tail coating heads respectively, double-sided coating of the electrodes can be achieved.

[0160] For example, the bottom of the first temporary storage tank 31, the second temporary storage tank 32, and the third temporary storage tank 33 are all equipped with weighbridges for detecting the weight of the first temporary storage tank 31, the second temporary storage tank 32, and the third temporary storage tank 33. The controller 103 is communicatively connected to the weighbridge. The controller 103 can determine the real-time slurry balance of the first temporary storage tank 31, the second temporary storage tank 32, and the third temporary storage tank 33 through the detection value of the weighbridge.

[0161] For example, the first temporary storage tank 31, the second temporary storage tank 32, and the third temporary storage tank 33 can be connected to the transfer tank 20 via pipelines. A valve can be provided between the first temporary storage tank 31 and the transfer tank 20, which can be used to control the slurry delivery from the transfer tank 20 to the first temporary storage tank 31. A valve can be provided between the second temporary storage tank 32 and the transfer tank 20, which can be used to control the slurry delivery from the transfer tank 20 to the second temporary storage tank 32.

[0162] For example, the first temporary storage tank 31 may be located upstream of the third temporary storage tank 33. A valve may be provided between the first temporary storage tank 31 and the third temporary storage tank 33, which can be used to control the slurry delivery from the transfer tank 20 to the third temporary storage tank 33.

[0163] Please see Figure 12 and Figure 13 , Figure 13 for Figure 12 The diagram shows a partial flow chart of one embodiment of the control method for the slurry conveying system 100. The control method for the slurry conveying system 100 also includes, but is not limited to, steps S400, S410, S420, S421, and S422. S400, S410, S420, S421, and S422 are optional steps following S100 and S200. To avoid further detail, see attached... Figure 13 Only S400, S410, S420, S421, and S422 are described. Furthermore, the control method of the slurry conveying system 100 in this embodiment is partially the same as the control method of the slurry conveying system 100 in the above embodiments, and will not be repeated here. Detailed descriptions of S400, S410, S420, S421, and S422 are as follows.

[0164] When the ratio of the real-time slurry balance in the intermediate transfer tank 20 to the rated capacity of the intermediate transfer tank 20 is within the second preset range in S400, the controller 103 confirms whether the first mixing tank 11 is supplying slurry to the intermediate transfer tank 20.

[0165] S410 When the first mixing tank 11 is conveying slurry to the transfer tank 20, the controller 103 controls the first mixing tank 11 to stop conveying slurry to the transfer tank 20.

[0166] When the first mixing tank 11 does not supply slurry to the transfer tank 20, the controller 103 confirms the real-time slurry balance in the first temporary storage tank 31, the second temporary storage tank 32, and the third temporary storage tank 33.

[0167] S421 When the real-time slurry balance in the first temporary storage tank 31, the second temporary storage tank 32, and the third temporary storage tank 33 is less than their respective calibrated capacities, the controller 103 controls the transfer tank 20 to deliver slurry to the first temporary storage tank 31, the second temporary storage tank 32, or the third temporary storage tank 33. The calibrated capacities of the first temporary storage tank 31, the second temporary storage tank 32, and the third temporary storage tank 33 can be found in the description of the calibrated capacity of the transfer tank 20 above; details will not be repeated here.

[0168] It is understandable that when the real-time slurry balance of the first temporary storage tank 31, the second temporary storage tank 32, and the third temporary storage tank 33 is greater than or equal to their respective calibrated capacities, the above steps are returned, for example, S420.

[0169] S422 When the ratio of the real-time slurry balance of the first temporary storage tank 31, the second temporary storage tank 32, or the third temporary storage tank 33 to their respective rated capacity is within the second preset range, the controller 103 controls the transfer tank 20 to stop supplying slurry to the first temporary storage tank 31, the second temporary storage tank 32, or the third temporary storage tank 33.

[0170] It is understandable that when the ratio of the real-time slurry balance in the first temporary storage tank 31, the second temporary storage tank 32, or the third temporary storage tank 33 to their respective calibrated capacity is not within the second preset range, the above steps are returned, for example, S421.

[0171] Through the above-mentioned S400, S410, S420, S421 and S422, the slurry in the transfer tank 20 can be automatically transported to the first temporary storage tank 31, the second temporary storage tank 32 and the third temporary storage tank 33, thereby improving production efficiency.

[0172] Please see Figure 12 , Figure 14A and Figure 14B , Figure 14A for Figure 12 A partial flowchart illustrating another embodiment of the control method for the slurry conveying system 100 shown. Figure 14B for Figure 12 The diagram shows a partial flow chart of another embodiment of the control method for the slurry conveying system 100. The control method for the slurry conveying system 100 also includes, but is not limited to, steps S510 and S511, and S520 and S521. S510 and S511, S520 and S521 are optional steps preceding S421 described above. To avoid further detail, see attached... Figure 14A Only S510 and S511 are listed, with appendix. Figure 14BOnly S520 and S521 are described. Furthermore, the control method of the slurry conveying system 100 in this embodiment is partially the same as the control method of the slurry conveying system 100 in the above embodiments, and will not be repeated here. Detailed descriptions of S510 and S511, S520 and S521 are as follows.

[0173] Before S421, S510 controller 103 confirms whether the first temporary storage tank 31 and the third temporary storage tank 33 are supplying slurry to the coating head of the coating machine.

[0174] S511 When the first temporary storage tank 31 and the third temporary storage tank 33 are not supplying slurry to the coating head of the coating machine, the controller 103 confirms the real-time slurry balance in the first temporary storage tank 31 and the third temporary storage tank 33. It is understood that when the first temporary storage tank 31 and the third temporary storage tank 33 are supplying slurry to the coating head of the coating machine, the above steps are returned, for example, S510.

[0175] Before S421, controller 103 in S520 confirms whether the second temporary storage tank 32 is supplying slurry to the coating head at the tail of the coating machine.

[0176] When the second temporary storage tank 32 is not supplying slurry to the tail coating head of the coating machine in step S521, the controller 103 confirms the real-time slurry balance in the second temporary storage tank 32. It is understood that when the second temporary storage tank 32 supplies slurry to the tail coating head of the coating machine, the process returns to the above steps, such as step S520.

[0177] Understandably, through the aforementioned S510 and S511, S520 and S521, when the first temporary storage tank 31 and the third temporary storage tank 33 are supplying slurry to the coating head of the coating machine, the transfer tank 20 can pause supplying slurry to the first temporary storage tank 31 and the third temporary storage tank 33, and the transfer tank 20 will not interfere with the slurry output from the first temporary storage tank 31 and the second temporary storage tank 32. When the second temporary storage tank 32 is supplying slurry to the coating head of the coating machine, the transfer tank 20 can pause supplying slurry to the second temporary storage tank 32, and the transfer tank 20 will not interfere with the slurry output from the second temporary storage tank 32.

[0178] Please see Figure 12 and Figure 15 , Figure 15 for Figure 12 The diagram shows a partial flow chart of another embodiment of the control method for the slurry conveying system 100. The control method for the slurry conveying system 100 also includes, but is not limited to, S430. S430 is an embodiment of S421 described above. To avoid further detail, see attached... Figure 15 Only S430 is given. Furthermore, the control method of the slurry conveying system 100 in this embodiment is partially the same as the control method of the slurry conveying system 100 in the above embodiments, and will not be repeated here. A detailed description of S430 is as follows.

[0179] In one embodiment, S421 includes S430: when the real-time slurry balance of the first temporary storage tank 31 is less than the real-time slurry balance of the second temporary storage tank 32 and the real-time slurry balance of the third temporary storage tank 33, the controller 103 controls the transfer tank 20 to deliver slurry to the first temporary storage tank 31 until the ratio of the real-time slurry balance of the first temporary storage tank 31 to the rated capacity of the first temporary storage tank 31 is within a second preset range; the controller 103 then controls the transfer tank 20 to deliver slurry to the second temporary storage tank 32 until the ratio of the real-time slurry balance of the second temporary storage tank 32 to the rated capacity of the second temporary storage tank 32 is within a second preset range.

[0180] In this embodiment, the controller 103 can be used to control the transfer tank 20 to deliver slurry to the tank with the least real-time slurry balance among the first temporary storage tank 31, the second temporary storage tank 32, and the third temporary storage tank 33, until the ratio of the real-time slurry balance of the temporary storage tank to the rated capacity of the temporary storage tank is within a second preset range.

[0181] If the temporary storage tank is a machine head temporary storage tank, when the ratio of the real-time slurry balance in the temporary storage tank to the rated capacity of the temporary storage tank is within the second preset range, the controller 103 can be used to control the transfer tank 20 to deliver slurry to the machine tail temporary storage tank.

[0182] If the temporary storage tank is a tail-end temporary storage tank, when the ratio of the real-time slurry balance in the temporary storage tank to the rated capacity of the temporary storage tank is within the second preset range, the controller 103 can be used to control the transfer tank 20 to deliver slurry to the head-end temporary storage tank.

[0183] It is understandable that through the above S430, the slurry in the transfer tank 20 can be reasonably distributed between the head storage tank and the tail storage tank, ensuring that there is slurry in both the head storage tank and the tail storage tank. This ensures that slurry can be coated on both the front and back of the electrode, achieving double-sided coating of the electrode and improving production efficiency.

[0184] Please see Figure 12 and Figure 16A , Figure 16A for Figure 12 The diagram shows a partial flow chart of another embodiment of the control method for the slurry conveying system 100. The control method for the slurry conveying system 100 also includes, but is not limited to, steps S431, S432, and S441. S431, S432, and S441 are optional steps following S430. To avoid further detail, see attached... Figure 16AOnly S431, S432, and S441 are given. Furthermore, the order of S431 and S432 can be interchanged. This application does not impose specific limitations. The control method of the slurry conveying system 100 in this embodiment is partially the same as the control method of the slurry conveying system 100 in the above embodiments, and the technical content will not be repeated. A detailed description of S431, S432, and S441 is as follows.

[0185] In one implementation, after S430, controller 103 confirms the real-time slurry level in the first temporary storage tank 31 in S431.

[0186] S432 controller 103 confirms the real-time slurry balance in the third temporary storage tank 33.

[0187] S441 When the real-time slurry balance in the first temporary storage tank 31 is less than the real-time slurry balance in the third temporary storage tank 33, the controller 103 controls the transfer tank 20 to deliver slurry to the first temporary storage tank 31 until the ratio of the real-time slurry balance in the first temporary storage tank 31 to the rated capacity of the first temporary storage tank 31 is within the second preset range.

[0188] It is understandable that when the real-time slurry balance in the first temporary storage tank 31 is greater than or equal to the real-time slurry balance in the third temporary storage tank 33, the above steps are returned, for example, S431.

[0189] Please see Figure 12 and Figure 16B , Figure 16B for Figure 12 The diagram shows a partial flow chart of another embodiment of the control method for the slurry conveying system 100. The control method for the slurry conveying system 100 also includes, but is not limited to, steps S431, S432, and S442. S431, S432, and S442 are optional steps following S430. To avoid further detail, see attached... Figure 16B Only S431, S432, and S442 are given. Furthermore, the order of S431 and S432 can be interchanged. This application does not impose specific limitations. The control method of the slurry conveying system 100 in this embodiment is partially the same as the control method of the slurry conveying system 100 in the above embodiments, and the technical content will not be repeated. A detailed description of S431, S432, and S442 is as follows.

[0190] In another implementation, after S430, controller 103 confirms the real-time slurry level in the first temporary storage tank 31 in S431.

[0191] S432 controller 103 confirms the real-time slurry balance in the third temporary storage tank 33.

[0192] S442 When the real-time slurry balance of the first temporary storage tank 31 is greater than the real-time slurry balance of the third temporary storage tank 33, the controller 103 controls the transfer tank 20 to deliver slurry to the third temporary storage tank 33 until the ratio of the real-time slurry balance of the third temporary storage tank 33 to the rated capacity of the third temporary storage tank 33 is within the second preset range.

[0193] It is understandable that when the real-time slurry balance in the first temporary storage tank 31 is less than or equal to the real-time slurry balance in the third temporary storage tank 33, the above steps are returned, for example, S431.

[0194] In this embodiment, when the transfer tank 20 delivers slurry to the die head temporary storage tank, the controller 103 can be used to control the transfer tank 20 to deliver slurry to the die head temporary storage tank with the lowest real-time slurry balance. It is understood that through the above steps S400, S410, S420, S421, and S421, the slurry in the transfer tank 20 can be rationally distributed between the first temporary storage tank 31 and the third temporary storage tank 33, thereby improving production efficiency.

[0195] Please see Figure 17 , Figure 17 for Figure 1 The diagram shows another embodiment of the slurry delivery system 100. In one embodiment, the temporary storage tank assembly 30 may further include a fourth temporary storage tank 34. The fourth temporary storage tank 34 is connected to the transfer tank 20 via a pipeline. The transfer tank 20 can deliver slurry to the fourth temporary storage tank 34. The fourth temporary storage tank 34 is also connected to the tail coating head of the coating machine for supplying slurry to the tail coating head of the coating machine. The fourth temporary storage tank 34 can be understood as a tail temporary storage tank. It is understood that the slurry flowing from the first mixing tank 11 to the transfer tank 20 can flow out of the transfer tank 20 through the discharge valve 21 of the transfer tank, and after passing through the screw pump 70, flow to one of the first temporary storage tank 31, the second temporary storage tank 32, the third temporary storage tank 33, and the fourth temporary storage tank 34.

[0196] For example, the second temporary storage tank 32 may be located upstream of the fourth temporary storage tank 34. A valve may be provided between the second temporary storage tank 32 and the fourth temporary storage tank 34, which can be used to control the slurry delivery from the transfer tank 20 to the fourth temporary storage tank 34.

[0197] For example, each of the fourth storage tanks 34 is equipped with a weighbridge at its bottom for detecting the weight of the fourth storage tank 34. The controller 103 is communicatively connected to the weighbridge. The controller 103 can determine the real-time remaining amount of slurry in the fourth storage tank 34 by using the weighbridge readings.

[0198] In one embodiment, S421 further includes: when the real-time slurry balance of the first temporary storage tank 31 is less than the real-time slurry balance of the second temporary storage tank 32, the third temporary storage tank 33, and the fourth temporary storage tank 34, the controller 103 controls the transfer tank 20 to deliver slurry to the first temporary storage tank 31 until the ratio of the real-time slurry balance of the first temporary storage tank 31 to the rated capacity of the first temporary storage tank 31 is within a second preset range, and the controller 103 controls the transfer tank 20 to deliver slurry to the second temporary storage tank 32 or the fourth temporary storage tank 34 until the ratio of the real-time slurry balance of the second temporary storage tank 32 to the rated capacity of the second temporary storage tank 32 is within a second preset range, or the ratio of the real-time slurry balance of the fourth temporary storage tank 34 to the rated capacity of the fourth temporary storage tank 34 is within a second preset range.

[0199] The calibrated capacity of the fourth temporary storage tank 34 can be referred to the description of the calibrated capacity of the transfer tank 20 above, and will not be repeated here. The method by which the controller 103 controls the transfer tank 20 to deliver slurry to the second temporary storage tank 32 or the fourth temporary storage tank 34 can be referred to S431, S432, S441, and S442 in the above embodiments. Specific details will not be repeated here. In this embodiment, when the transfer tank 20 delivers slurry to multiple tail-end temporary storage tanks, the controller 103 can control the transfer tank 20 to deliver slurry to the tail-end temporary storage tank with the lowest real-time slurry balance, thereby achieving a reasonable distribution of slurry within the transfer tank 20 among the multiple tail-end temporary storage tanks and improving production efficiency.

[0200] In this embodiment, the controller 103 can be used to control the transfer tank 20 to deliver slurry to the tank with the least real-time slurry balance among the first temporary storage tank 31, the second temporary storage tank 32, the third temporary storage tank 33 and the fourth temporary storage tank 34, until the ratio of the real-time slurry balance of the temporary storage tank to the rated capacity of the temporary storage tank is within a second preset range.

[0201] If the temporary storage tank is a machine head temporary storage tank, when the ratio of the real-time slurry balance in the temporary storage tank to the rated capacity of the temporary storage tank is within the second preset range, the controller 103 can be used to control the transfer tank 20 to deliver slurry to the machine tail temporary storage tank with the least real-time slurry balance.

[0202] If the temporary storage tank is a tail-end temporary storage tank, when the ratio of the real-time slurry balance in the temporary storage tank to the rated capacity of the temporary storage tank is within the second preset range, the controller 103 can be used to control the transfer tank 20 to deliver slurry to the tank with the least real-time slurry balance in the head temporary storage tank.

[0203] In this embodiment, after the slurry is prepared in the first mixing tank 11 and / or the second mixing tank 12, under the above control method, it can flow out of the first mixing tank 10 through the discharge valve 111 of the first mixing tank and / or out of the second mixing tank 12 through the discharge valve 121 of the second mixing tank. The slurry flows through a pipeline to the transfer tank 20 after passing through the diaphragm pump 50 and the magnetic filter 60. Subsequently, under the above control method, the slurry in the transfer tank 20 can flow out of the transfer tank 20 through the discharge valve 21 of the transfer tank, and after passing through the screw pump 70, it flows to the temporary storage tank assembly 30. Then, under the above control method, the slurry flowing to the temporary storage tank assembly 30 can flow to one of the first temporary storage tank 31, the second temporary storage tank 32, the third temporary storage tank 33, and the fourth temporary storage tank 34. Specifically, the slurry can flow to the one with the lowest real-time slurry balance among the first temporary storage tank 31, the second temporary storage tank 32, the third temporary storage tank 33, and the fourth temporary storage tank 34. Under the above control method, the transfer tank 20 alternately delivers slurry between the head temporary storage tank (first temporary storage tank 31 and third temporary storage tank 33) and the tail temporary storage tank (second temporary storage tank 32 and fourth temporary storage tank 34).

[0204] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A control method of a slurry delivery system applied to a coater, characterized by, The slurry conveying system comprises a first mixing tank, a transfer tank, a first detector, a second detector and a controller; The first mixing tank is connected to the transfer tank, the first detector is arranged in the first mixing tank, the second detector is arranged in the transfer tank, and the controller is communicatively connected to the first detector, the second detector and the first mixing tank; The control method comprises: The controller confirms the real-time amount of slurry in the first mixing tank transmitted by the first detector; The controller confirms the real-time amount of slurry in the transfer tank transmitted by the second detector; When the sum of the real-time amount of slurry in the transfer tank and the real-time amount of slurry in the first mixing tank is less than the rated capacity of the transfer tank, the controller controls the first mixing tank to convey slurry to the transfer tank until the ratio of the real-time amount of slurry in the first mixing tank to the rated capacity of the first mixing tank is within a first preset range.

2. The control method of the slurry delivery system according to claim 1, characterized by, The slurry conveying system further comprises a feeding device connected to the first mixing tank and communicatively connected to the controller; After the ratio of the real-time amount of slurry in the first mixing tank to the rated capacity of the first mixing tank is within the first preset range, the control method further comprises: The controller controls the feeding device to convey material to the first mixing tank; The controller controls the first mixing tank to mix to synthesize new slurry.

3. The control method of the slurry delivery system according to claim 1, wherein, The slurry conveying system further comprises a second mixing tank connected to the transfer tank, and the second mixing tank is communicatively connected to the controller; After the ratio of the real-time amount of slurry in the first mixing tank to the rated capacity of the first mixing tank is within the first preset range, the control method further comprises: The controller confirms the real-time amount of slurry in the transfer tank transmitted by the second detector; When the real-time amount of slurry in the transfer tank is less than the rated capacity of the transfer tank, the controller confirms whether the transfer tank is conveying slurry to the outside of the transfer tank; When the transfer tank is not conveying slurry to the outside of the transfer tank, the controller confirms the real-time amount of slurry in the second mixing tank; When the sum of the real-time amount of slurry in the second mixing tank and the real-time amount of slurry in the transfer tank is less than the rated capacity of the second mixing tank, the controller controls the second mixing tank to convey slurry to the transfer tank until the ratio of the real-time amount of the second mixing tank to the rated capacity of the second mixing tank is within a first preset range; Or, When the ratio of the real-time amount of slurry in the second mixing tank to the rated capacity of the second mixing tank is within a second preset range, the controller controls the second mixing tank to convey slurry to the transfer tank.

4. The control method of the slurry delivery system according to claim 2, wherein, The slurry conveying system further comprises a temporary storage tank assembly connected to the transfer tank and connected to the coating head of the coating machine; The control method further comprises: The controller confirms the real-time amount of slurry in the transfer tank conveyed by the second detector; When the ratio of the real-time amount of slurry in the transfer tank to the rated capacity of the transfer tank is within a second preset range, the controller confirms the real-time amount of slurry in the temporary storage tank assembly; When the real-time amount of slurry in the temporary storage tank assembly is less than the rated capacity of the temporary storage tank assembly, the controller controls the transfer tank to deliver slurry to the temporary storage tank assembly.

5. The control method of the slurry delivery system according to claim 4, wherein, After the first mixing tank synthesizes new slurry, the control method further comprises: The controller determines whether the transfer tank delivers slurry to the temporary storage tank assembly; When the transfer tank delivers slurry to the temporary storage tank assembly, the controller controls the transfer tank to continue delivering slurry to the temporary storage tank assembly until the ratio of the real-time amount of slurry in the transfer tank to the rated capacity of the transfer tank is within a first preset range, or the ratio of the real-time amount of slurry in the temporary storage tank assembly to the rated capacity of the temporary storage tank assembly is within a second preset range; When the transfer tank does not deliver slurry to the temporary storage tank assembly, the controller controls the first mixing tank to deliver slurry to the temporary storage tank assembly until the ratio of the real-time amount of slurry in the transfer tank to the rated capacity of the transfer tank is within a second preset range.

6. The control method of the slurry delivery system according to claim 5, wherein, The temporary storage tank assembly comprises a first temporary storage tank, a second temporary storage tank, and a third temporary storage tank, all of which are connected to the transfer tank, the first temporary storage tank and the third temporary storage tank are connected to the head coating head of the coating machine, and the second temporary storage tank is connected to the tail coating head of the coating machine. The control method further comprises: When the ratio of the real-time amount of slurry in the transfer tank to the rated capacity of the transfer tank is within a second preset range, the controller determines whether the first mixing tank delivers slurry to the transfer tank; When the first mixing tank delivers slurry to the transfer tank, the controller controls the first mixing tank to pause delivering slurry to the transfer tank; When the first mixing tank does not deliver slurry to the transfer tank, the controller determines the real-time amount of slurry in the first temporary storage tank, the second temporary storage tank, and the third temporary storage tank; When the real-time amount of slurry in the first temporary storage tank, the second temporary storage tank and the third temporary storage tank is less than the respective rated capacity, the controller controls the transfer tank to deliver slurry to the first temporary storage tank, the second temporary storage tank or the third temporary storage tank; When the ratio of the real-time amount of slurry in the first temporary storage tank, the second temporary storage tank or the third temporary storage tank to the respective rated capacity is within a second preset range, the controller controls the transfer tank to pause delivering slurry to the first temporary storage tank, the second temporary storage tank or the third temporary storage.

7. The control method of the slurry delivery system according to claim 6, wherein, Before the controller controls the transfer tank to deliver slurry to the first temporary storage tank, the second storage tank or the third temporary storage tank, the control method further comprises: The controller determines whether the first temporary storage tank and the third temporary storage tank deliver slurry to the head coating head of the coating machine; When the first temporary storage tank and the third temporary storage tank do not deliver slurry to the head coating head of the coating machine, the controller determines the real-time amount of slurry in the first temporary storage tank and the third temporary storage tank; Or, The controller determines whether the second temporary storage tank delivers slurry to the tail coating head of the coating machine; When the second temporary storage tank does not supply slurry to the coating head at the tail of the coating machine, the controller confirms the real-time slurry level in the second temporary storage tank.

8. The control method of the slurry delivery system according to claim 6, wherein, The process by which the controller controls the transfer tank to deliver slurry to the first temporary storage tank, the second temporary storage tank, or the third temporary storage tank includes: When the real-time slurry balance in the first temporary storage tank is less than the real-time slurry balance in the second temporary storage tank and the real-time slurry balance in the third temporary storage tank, the controller controls the transfer tank to deliver slurry to the first temporary storage tank until the ratio of the real-time slurry balance in the first temporary storage tank to the rated capacity of the first temporary storage tank is within a second preset range. The controller then controls the transfer tank to deliver slurry to the second temporary storage tank until the ratio of the real-time slurry balance in the second temporary storage tank to the rated capacity of the second temporary storage tank is within a second preset range.

9. The control method of the slurry delivery system according to claim 8, wherein, After the ratio of the real-time slurry balance in the second temporary storage tank to the calibrated capacity of the second temporary storage tank falls within a second preset range, the control method further includes: The controller confirms the real-time remaining amount of slurry in the first temporary storage tank; The controller confirms the real-time remaining amount of slurry in the third temporary storage tank; When the real-time slurry balance in the first temporary storage tank is less than the real-time slurry balance in the third temporary storage tank, the controller controls the transfer tank to deliver slurry to the first temporary storage tank until the ratio of the real-time slurry balance in the first temporary storage tank to the calibrated capacity of the first temporary storage tank is within a second preset range. When the real-time slurry balance in the first temporary storage tank is greater than the real-time slurry balance in the third temporary storage tank, the controller controls the transfer tank to deliver slurry to the third temporary storage tank until the ratio of the real-time slurry balance in the third temporary storage tank to the rated capacity of the third temporary storage tank is within a second preset range.

10. The control method of the slurry delivery system according to any one of claims 1 to 9, characterized in that, The first detector is a laser liquid level sensor, and the first detector is installed inside the first stirring tank; The control method further includes: Before the controller confirms the real-time slurry level in the first mixing tank transmitted by the first detector, the controller controls the first detector to detect the liquid level height in the first mixing tank.

11. The control method of a slurry delivery system according to any one of claims 1 to 9, characterized in that, The slurry conveying system also includes a diaphragm pump, which is connected to the discharge valve of the first mixing tank. The outlet of the diaphragm pump is connected to the transfer tank. Both the diaphragm pump and the discharge valve of the first mixing tank are communicatively connected to the controller. The control method further includes: The controller controls the first mixing tank to deliver slurry to the transfer tank by opening the discharge valve of the first mixing tank and starting the diaphragm pump.

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