Water washing reaction kettle control method and device, electronic equipment and storage medium

Abstract

The application discloses a kind of water washing reaction kettle control method, device, electronic equipment and storage medium.The method comprises: obtaining the control parameter of water washing reaction kettle;When determining that the high-nickel ternary positive electrode material and pure water meet the control parameter, according to the control parameter, the solution in the water washing reaction kettle is heated;According to the stirring sequence corresponding to the position of the blade in the water washing reaction kettle, according to the control parameter, the solution in the water washing reaction kettle is stirred by each layer blade in the water washing reaction kettle in turn;The real-time temperature of the solution in the water washing reaction kettle is controlled to meet the process temperature continuously;When the solution in the water washing reaction kettle is unloaded, according to the control parameter and the liquid level position of the solution in the water washing reaction kettle, the blade corresponding to the liquid level position in the water washing reaction kettle is controlled to reduce speed and stop stirring.The application embodiment can improve the coating effect of water washing reaction kettle and improve the stirring efficiency.

Description

Technical Field

[0001] This invention relates to the field of lithium battery material preparation, and in particular to a method, apparatus, electronic device, and storage medium for controlling a water-washing reaction vessel. Background Technology

[0002] In the field of lithium battery material preparation, water-washing reactors mainly achieve material surface purification through physical mass transfer and heat exchange mechanisms. The water-washing reactor uses a stirring system to drive deionized water into contact with the material, utilizing the high solubility of water to remove residual alkaline impurities from the surface of the cathode material.

[0003] Existing water washing reactors rely on fixed rotation speed or simple timed and speed control to achieve the entire water washing and coating process, resulting in inconsistent water washing and coating effects for high-nickel ternary cathode materials. Summary of the Invention

[0004] This invention provides a control method, device, electronic equipment, and storage medium for a water washing reactor, which can improve the coating effect and stirring efficiency of the water washing reactor.

[0005] According to one aspect of the present invention, a method for controlling a water-washing reactor is provided, comprising:

[0006] Obtain the control parameters of the water-washing reactor;

[0007] When it is determined that the high-nickel ternary cathode material and pure water added to the water washing reactor meet the control parameters, the solution in the water washing reactor is heated according to the control parameters;

[0008] According to the stirring sequence corresponding to the position of the blades in the water washing reactor, and based on the control parameters, the blades in each layer of the water washing reactor are sequentially controlled to stir the solution in the water washing reactor.

[0009] When the temperature of the solution in the water washing reactor meets the process temperature in the control parameters and the rotation speed of each layer of blades meets the corresponding rotation speed in the control parameters, the real-time temperature of the solution in the water washing reactor is controlled to continuously meet the process temperature.

[0010] When unloading the solution from the water washing reactor, the blades corresponding to the liquid level position in the water washing reactor are controlled to decelerate and stop stirring according to the control parameters and the liquid level position of the solution in the water washing reactor.

[0011] According to another aspect of the present invention, a control device for a water-washing reactor is provided, characterized in that it comprises:

[0012] The parameter acquisition module is used to acquire the control parameters of the water washing reactor.

[0013] A heating control module is used to heat the solution in the water washing reactor according to the control parameters when it is determined that the high-nickel ternary cathode material and pure water added to the water washing reactor meet the control parameters.

[0014] The stirring control module is used to control each layer of blades in the water washing reactor to stir the solution in the water washing reactor in sequence according to the stirring order corresponding to the position of the blades in the water washing reactor and according to the control parameters.

[0015] The feedback control module is used to control the real-time temperature of the solution in the water washing reactor to continuously meet the process temperature when the temperature of the solution in the water washing reactor meets the process temperature in the control parameters and the rotation speed of each blade in the layer meets the corresponding rotation speed in the control parameters.

[0016] The unloading control module is used to control the blades in the water washing reactor corresponding to the liquid level position to decelerate and stop stirring when unloading the solution in the water washing reactor, based on the control parameters and the liquid level position of the solution in the water washing reactor.

[0017] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0018] At least one processor; and

[0019] A memory communicatively connected to the at least one processor; wherein,

[0020] The memory stores a computer program that can be executed by the at least one processor, which enables the at least one processor to perform the control method for the water washing reactor according to any embodiment of the present invention.

[0021] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions for causing a processor to execute and implement the control method for a water washing reactor according to any embodiment of the present invention.

[0022] The technical solution of this invention obtains the control parameters of the water washing reactor. When the ratio of high-nickel ternary cathode material to pure water meets the control parameters, it triggers the heating of the solution in the water washing reactor and sequentially triggers the blades to start rotating, so that the solution in the water washing reactor is stirred at a specified temperature and speed, and a constant process temperature is maintained during the stirring process until the stirring is completed. When the solution in the water washing reactor is unloaded, the blades are controlled to decelerate and stop rotating according to the control parameters and the page position, so that the stirring of the solution in the water washing reactor stops. It can be adjusted in real time according to the real-time stirring situation in the water washing reactor, avoiding fixed speed or timed speed control. This solves the problem that the water washing and coating effect of high-nickel ternary cathode material is inconsistent due to the existing reliance on fixed speed or simple timed speed control to achieve the entire water washing and coating process. It improves the fineness and precision of blade speed control, and at the same time improves stirring efficiency, thereby improving the water washing and coating effect of high-nickel ternary cathode material.

[0023] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a flowchart of a control method for a water-washing reactor provided according to an embodiment of the present invention;

[0026] Figure 2 This is a flowchart of a control method for a water-washing reactor provided according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of a control device for a water washing reactor according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the electronic device used to implement the control method for the water washing reactor in this embodiment of the invention. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] Figure 1 This is a flowchart illustrating a control method for a water-washing reactor according to an embodiment of the present invention. This embodiment is applicable to situations involving the calculation of colorant concentration in glass. The method can be executed by a control device for the water-washing reactor, which can be implemented in hardware and / or software. This control device can be configured in an electronic device with certain data processing capabilities, such as a server.

[0032] See Figure 1 The control method for the water washing reactor shown includes:

[0033] S101. Obtain the control parameters of the water washing reactor.

[0034] In the lithium-ion battery manufacturing process, the water-washing reactor is used in the coating process of high-nickel ternary cathode materials to ensure effective removal of residual alkali and coating quality. The removal of residual alkali and the uniformity of coating of high-nickel materials in lithium-ion batteries directly affect the battery's cycle life and safety. The water-washing reactor is a closed container used for industrial cleaning and material surface treatment. It removes impurities (such as residual alkali and metal ions) from materials through physical mass transfer and heat exchange mechanisms, and coats the surface of objects with specific materials. The water-washing reactor includes at least one layer of blades, with heating devices positioned at the locations of each layer of blades. Control parameters are used to perform stirring operations in the water-washing reactor. These control parameters include at least the blade rotation speed and the required process temperature of the solution.

[0035] The control parameters can be pre-configured parameters, such as the optimal control parameters determined experimentally. Alternatively, the control parameters can be obtained from a pre-trained model.

[0036] S102. When it is determined that the high-nickel ternary cathode material and pure water added to the water washing reactor meet the control parameters, the solution in the water washing reactor is heated according to the control parameters.

[0037] High-nickel ternary cathode material and pure water are added to a water-washing reactor. The reactor monitors the ratio of the added high-nickel ternary cathode material to pure water. When this ratio matches the preset ratio in the control parameters, the high-nickel ternary cathode material and pure water are deemed to meet the control parameters. When this ratio differs from the preset ratio, the high-nickel ternary cathode material and pure water are deemed not to meet the control parameters. The solution in the water-washing reactor is heated using a heating device within the reactor. The solution in the water-washing reactor can include high-nickel ternary cathode material and pure water; this solution is a mixed liquid. Additionally, other materials can be added to improve impurity removal and coating effects. For example, acidic and alkaline substances can be added. The standard ratio in the control parameters includes the mass ratio of high-nickel ternary cathode material, pure water, acidic substances, and alkaline substances.

[0038] In an optional embodiment, determining that the high-nickel ternary cathode material and pure water added to the water washing reactor meet the control parameters includes: monitoring the material ratio between the high-nickel ternary cathode material and pure water in the water washing reactor; and determining that the high-nickel ternary cathode material and pure water added to the water washing reactor meet the control parameters when the material ratio meets the standard ratio in the control parameters.

[0039] The material ratio can refer to the mass ratio between high-nickel ternary cathode material and pure water. The standard ratio can refer to the value that the mass ratio between high-nickel ternary cathode material and pure water should reach in the control parameters.

[0040] When the high-nickel ternary cathode material and pure water meet the control parameters, it indicates that the solution in the water-washing reactor has been successfully added, and the next step can begin heating and stirring. The control parameters include the optimal temperature to be reached. The solution in the water-washing reactor can be heated according to the control parameters until the temperature of the solution reaches the optimal temperature specified in the control parameters.

[0041] S103. According to the stirring sequence corresponding to the position of the blades in the water washing reactor, and based on the control parameters, control each layer of blades in the water washing reactor to stir the solution in the water washing reactor in sequence.

[0042] In this embodiment of the invention, the water washing reactor includes at least one layer of blades, with different layers of blades at different heights within the reactor. Blades in the same layer are located at the same height within the reactor. The stirring order of blades in different layers is different. The stirring order of blades in the same layer is the same. In some embodiments, the stirring order can be determined from high to low, or from low to high. Control parameters include the rotational speed and acceleration of each layer of blades. The control parameters can be used to control the blades in each layer to accelerate or decelerate, and to maintain the optimal rotational speed when it is reached. The rotational speeds of blades in different layers can be the same or different. The accelerations of blades in different layers can be the same or different. The rotational speeds and accelerations of blades in different layers are independent of each other. The rotational speeds and accelerations of blades in the same layer are the same.

[0043] In some embodiments, the water-washing reactor includes three layers of blades: a top layer blade, a middle layer blade, and a bottom layer blade. The stirring order of the different layers of blades, in sequence, is the top layer blade, the middle layer blade, and the bottom layer blade.

[0044] S104. When the temperature of the solution in the water washing reactor meets the process temperature in the control parameters and the rotation speed of each layer of blades meets the corresponding rotation speed in the control parameters, the real-time temperature of the solution in the water washing reactor is controlled to continuously meet the process temperature.

[0045] Here, "process temperature" refers to the optimal temperature the solution needs to reach during stirring. "Solution temperature meeting process temperature" means the solution temperature is close to the process temperature; specifically, the temperature difference between the solution temperature and the process temperature is less than a preset threshold, which is relatively small. "One layer of blades meeting the corresponding rotational speed" means that the blades in that layer need to reach the optimal rotational speed during stirring. When the solution temperature meets the process temperature and the blades meet the corresponding rotational speed, it indicates that the water washing reactor has reached a stable state. At this point, feedback control can be performed based on the real-time status of the water washing reactor to ensure that both the temperature and rotational speed in the reactor remain stable at their optimal levels.

[0046] In reality, the real-time temperature of the solution may change due to external factors or the stirring rate itself. To ensure that the real-time temperature of the solution in the water washing reactor remains at the process temperature, continuous heating or cooling is required to maintain the solution temperature in the water washing reactor at the process temperature. Meanwhile...

[0047] S105. When unloading the solution from the water washing reactor, the blades corresponding to the liquid level position in the water washing reactor are controlled to decelerate and stop stirring according to the control parameters and the liquid level position of the solution in the water washing reactor.

[0048] Solution unloading refers to discharging the solution from the water-washed reactor. Normally, any remaining solution should be kept at the optimal temperature and stirring speed. This allows for real-time control of heating devices that do not require heating and blades that do not require rotation, based on the solution level.

[0049] In one optional embodiment, the water-washing reactor comprises three layers of blades. A three-stage progressive speed control strategy is employed: first, the top layer blades are activated and accelerated to the optimal speed; then, the middle layer blades are activated until a steady state is reached; finally, the bottom layer blades are activated and the screw pump is simultaneously controlled to discharge material. During shutdown, the speed is reduced in stages according to the top-middle-bottom sequence. By establishing a speed timing control algorithm, the optimal speed is dynamically adjusted in conjunction with the slurry viscosity, and a correlation database between process parameters and coating quality is constructed. This layered progressive start-stop control and speed optimization matching significantly improves the uniformity of material mixing, reduces energy consumption, avoids interlayer turbulence interference, and significantly improves the density of the coating layer. The optimal speeds of the blades in different layers are independent of each other and can be the same or different.

[0050] The technical solution of this invention obtains the control parameters of the water washing reactor. When the ratio of high-nickel ternary cathode material to pure water meets the control parameters, it triggers the heating of the solution in the water washing reactor and sequentially triggers the blades to start rotating, so that the solution in the water washing reactor is stirred at a specified temperature and speed, and a constant process temperature is maintained during the stirring process until the stirring is completed. When the solution in the water washing reactor is unloaded, the blades are controlled to decelerate and stop rotating according to the control parameters and the page position, so that the stirring of the solution in the water washing reactor stops. It can be adjusted in real time according to the real-time stirring situation in the water washing reactor, avoiding fixed speed or timed speed control. This solves the problem that the water washing and coating effect of high-nickel ternary cathode material is inconsistent due to the existing reliance on fixed speed or simple timed speed control to achieve the entire water washing and coating process. It improves the fineness and precision of blade speed control, and at the same time improves stirring efficiency, thereby improving the water washing and coating effect of high-nickel ternary cathode material.

[0051] Figure 2This is a flowchart illustrating a control method for a water washing reactor according to an embodiment of the present invention. Based on the above embodiments, this embodiment of the invention specifies the process of "controlling each layer of blades in the water washing reactor to stir the solution in the water washing reactor according to the stirring sequence corresponding to the position of the blades in the water washing reactor and according to the control parameters" as follows: triggering control to rotate the top layer blades of the water washing reactor; when the top layer blades reach the first rotational speed in the control parameters, controlling the top layer blades to continue rotating at the first rotational speed; triggering control to rotate the middle layer blades according to the real-time rotational speed of the top layer blades; controlling the middle layer blades to continue rotating at the second rotational speed when the middle layer blades reach the second rotational speed in the control parameters; triggering control to rotate the bottom layer blades according to the real-time rotational speed of the middle layer blades; and controlling the bottom layer blades to continue rotating at the third rotational speed when the bottom layer blades reach the third rotational speed in the control parameters.

[0052] It should be noted that for parts not described in detail in the embodiments of the present invention, please refer to the descriptions in other embodiments.

[0053] See Figure 2 The control method for the water washing reactor shown includes:

[0054] S201. Obtain the control parameters of the water washing reactor.

[0055] S202. When it is determined that the high-nickel ternary cathode material and pure water added to the water washing reactor meet the control parameters, the solution in the water washing reactor is heated according to the control parameters.

[0056] In some embodiments, the material ratio is monitored in real time by a mass flow meter. When the high-nickel ternary cathode material and pure water reach the required material ratio, a start command is sent to the water washing reactor.

[0057] S203, Trigger control to rotate the top blades of the water washing reactor.

[0058] When the high-nickel ternary cathode material and pure water meet the aforementioned control parameters, the rotation of the top-layer blades can be triggered simultaneously with the heating process. Alternatively, the rotation of the top-layer blades can be triggered when the solution is heated to the process temperature specified in the control parameters.

[0059] For example, a PID (Proportional-Integral-Derivative Control Algorithm) can be used to perform speed ramp control on the top blade. The control parameters include the initial speed and acceleration of the top blade. For example, the initial speed is 50-100 rpm and the acceleration is 5-15 rpm / s, which is gradually increased to the optimal speed corresponding to the process temperature.

[0060] Stirring begins by washing the top layer of high-nickel ternary cathode material inside the reactor with water to prevent excessive torque from being required when stirring due to too much material in the reactor, which could damage the stirring device.

[0061] S204. When the top blade reaches the first speed in the control parameters, control the top blade to continue rotating at the first speed.

[0062] The first rotational speed is the optimal speed that the top blades will eventually reach. Once the top blades reach this first rotational speed, the speed will not be increased further, and the rotation will remain at the first rotational speed. Initially, the stirring speed of the top blades is relatively slow, and as time goes on, the stirring speed is gradually increased until it reaches a stable, uniform rotation.

[0063] S205. Based on the real-time rotational speed of the top layer blade, trigger control to rotate the middle layer blade.

[0064] The real-time rotational speed refers to the rotational speed of the top-level blades. The rotational speed of the top-level blades is used to determine whether to trigger the rotation of the middle-level blades. For example, the rotation of the middle-level blades can be triggered when the top-level blades reach a first rotational speed and the duration is greater than or equal to a preset duration threshold. This ensures that the middle-level blades only begin to rotate after the top-level blades have stabilized.

[0065] In an optional embodiment, triggering control of the rotation of the middle layer blades based on the real-time rotation speed of the top layer blades includes: acquiring the real-time rotation speed of the top layer blades and calculating the first rotation duration of the top layer blades at the first rotation speed; detecting the particle size distribution of the upper layer material in the water washing reactor; detecting the liquid level drop rate in the water washing reactor; and determining whether to trigger control of the rotation of the middle layer blades based on the first rotation duration, the particle size distribution, and the liquid level drop rate.

[0066] The first rotation duration can refer to the duration during which the real-time rotational speed of the top blade remains at the first rotational speed. The first rotation duration describes the rotational speed stability of the top blade, while the particle size distribution describes the degree of dispersion of the material in the solution. The liquid level drop rate can refer to the rate at which the highest liquid level in the solution in the water-washing reactor descends. The liquid level drop rate describes the sedimentation risk of the solution in the water-washing reactor.

[0067] In some embodiments, when the top blade rotation speed is maintained at the first rotation speed for a duration ≥ 30 seconds, the D50 (Median Particle Size) value reaches 0.8-1.2 μm and the distribution coefficient PDI (Polydispersity Index) < 0.3, and the liquid level drop rate is less than ±5%, the rotation of the middle blades is triggered; otherwise, the rotation of the middle blades is not triggered. Specifically, when the top blade rotation speed is maintained at the first rotation speed for a duration less than 30 seconds, the rotation of the middle blades is not triggered; when the D50 value does not reach 0.8-1.2 μm or the distribution coefficient PDI ≥ 0.3, the rotation of the middle blades is not triggered; when the liquid level drop rate is less than ±5%, the rotation of the middle blades is not triggered.

[0068] Among them, the particle size distribution of the upper layer material in the water washing reactor, such as D50 and PDI, can be detected by a laser particle size analyzer.

[0069] It is evident that intelligent layered stirring control with multi-parameter feedback can achieve precise control of the rotation of the middle layer blades. The middle layer blades can be activated when the top layer blades are rotating stably, allowing for a smooth transition in speed control. This ensures that the top and middle layer blades can stir simultaneously without affecting the consistent coating effect of all high-nickel ternary cathode materials in the reactor. Controlling the rotation of the middle layer blades by particle size distribution allows for activation when the material particles are highly dispersed and uniform, reducing the torque required for stirring and minimizing blade wear in the water-washing reactor. Controlling the rotation of the middle layer blades by the rate of liquid level descent allows for triggering rotation when the liquid level is stable, reducing instability caused by the blades failing to decelerate in time due to rapid solution reduction. This improves blade rotation safety and reduces blade rotation energy consumption.

[0070] In an optional embodiment, a fuzzy control algorithm can be used to adjust the acceleration of the middle blades, and the acceleration 'a' is calculated using the following formula:

[0071] a=K p ×ΔN+K i ×∫ΔN dt+K d ×d(ΔN) / dt

[0072] Where ΔN is the difference between the actual rotational speed and the target rotational speed, K p K i K d This is a proportional coefficient that is adjusted in real time according to the material viscosity.

[0073] S206. When the middle layer blade reaches the second rotational speed in the control parameters, control the middle layer blade to continue rotating at the second rotational speed.

[0074] The second rotational speed is the optimal speed that the middle layer blades ultimately reach. Once the middle layer blades reach this second rotational speed, the speed is no longer increased, and the rotation remains at this second speed. Initially, the middle layer blades stir at a relatively slow speed, and over time, the stirring speed is gradually increased until a uniform and stable rotation is achieved.

[0075] S207. Based on the real-time rotational speed of the middle layer blades, trigger control to rotate the bottom layer blades.

[0076] The real-time rotational speed refers to the rotational speed of the middle-layer blades. The rotational speed of the middle-layer blades is used to determine whether to trigger the rotation of the bottom-layer blades. For example, the rotation of the bottom-layer blades can be triggered when the rotational speed of the middle-layer blades reaches the second rotational speed and the duration is greater than or equal to a preset duration threshold. This ensures that the bottom-layer blades only begin to rotate after the middle-layer blades have stabilized.

[0077] In an optional embodiment, triggering the rotation of the bottom layer blades based on the real-time rotational speed of the middle layer blades includes: acquiring the real-time rotational speed of the top layer blades and the real-time rotational speed of the middle layer blades; calculating the rotational speed difference between the real-time rotational speed of the top layer blades and the real-time rotational speed of the middle layer blades; and determining whether to trigger the rotation of the bottom layer blades based on the rotational speed difference.

[0078] The rotational speed difference is used to describe the difference in stirring between the top and middle blades. In some embodiments, when the rotational speed difference is less than or equal to a preset rotational speed difference threshold, the bottom blades are triggered to rotate. For example, when the rotational speed difference is ≤5%, the bottom blades are triggered to start rotating.

[0079] In some embodiments, the same fuzzy control algorithm as that used for the middle layer blades can be employed to adjust the acceleration of the bottom layer blades.

[0080] It is evident that by starting the bottom blades to stir when the rotation speed of the top and middle blades reaches the optimal speed and is stable, the same smooth transition strategy can be adopted to stir all three layers of blades together. All blades stir together at the same stable speed, ensuring that the high-nickel ternary cathode material in the water-washing reactor reaches a final consistent water-washing coating state, thus improving the consistency of the coating state.

[0081] S208. When the bottom blade reaches the third rotational speed in the control parameters, control the bottom blade to continue rotating at the third rotational speed.

[0082] The third rotational speed is the optimal speed that the bottom blades ultimately reach. Once the bottom blades reach this third rotational speed, the speed is no longer increased, and the rotation remains at this third speed. Initially, the bottom blades stir at a relatively slow speed, but over time, the stirring speed is gradually increased until a uniform and stable rotation is achieved.

[0083] In some implementations, the first speed, the second speed, and the third speed are the same.

[0084] S209. When the temperature of the solution in the water washing reactor meets the process temperature in the control parameters and the rotation speed of each layer of blades meets the corresponding rotation speed in the control parameters, the real-time temperature of the solution in the water washing reactor is controlled to continuously meet the process temperature.

[0085] S210. When unloading the solution in the water washing reactor, according to the control parameters and the liquid level position of the solution in the water washing reactor, the blades corresponding to the liquid level position in the water washing reactor are controlled to decelerate and stop stirring.

[0086] The technical solution of this invention significantly improves the uniformity of material mixing and reduces energy consumption through layered progressive start-stop control and speed optimization matching. At the same time, it avoids interlayer turbulence interference and significantly improves the density of the coating layer. All layer blades are stirred together at a stable speed to ensure that the high-nickel ternary cathode material in the reactor reaches a final consistent water-washed coating state.

[0087] In an optional embodiment, controlling the real-time temperature of the solution in the water washing reactor to continuously meet the process temperature includes: detecting the temperature of the solution in at least one blade layer in the water washing reactor to obtain the blade layer temperature of each blade layer; when the blade layer temperature of a blade layer is higher than the process temperature in the control parameters corresponding to the blade layer, calculating the amount of cooling water replenishment corresponding to the blade layer based on the process temperature, the blade layer temperature of the blade layer, and the cooling water temperature; injecting cooling water into the water washing reactor according to the amount of cooling water replenishment corresponding to the blade layer, and controlling the increase of the blade rotation speed of the blade layer; when the... When the blade layer temperature equals the corresponding process temperature, the blade rotation speed is controlled to return to its original speed. When the blade layer temperature is lower than the corresponding process temperature in the control parameters, the heating temperature of the heating device is calculated based on the process temperature, the blade layer temperature, and the cooling water temperature. The heating device is controlled to heat the blade layer according to the corresponding heating temperature, and the blade rotation speed is increased. When the blade layer temperature equals the corresponding process temperature, the blade rotation speed is controlled to return to its original speed.

[0088] The process involves cooling the solution when its temperature exceeds the process temperature and heating it when its temperature falls below the process temperature. Both heating and cooling require replenishing the solution. If, after replenishment, the stirring torque remains the same based on the initial solution volume, the stirring speed cannot be maintained at the optimal level, resulting in poor coating of the solution in the washing reactor. Therefore, the blade rotation speed needs to be increased to compensate for the increased solution and adapt to the temperature adjustment. Essentially, while adjusting the solution temperature, the blade rotation speed also needs to be adjusted to match the adjusted solution temperature.

[0089] Temperature sensors are installed in the blade layer of the water washing reactor.

[0090] For scenarios where the temperature exceeds the process temperature, if the temperature sensor of any blade layer detects that the temperature of that blade layer is higher than the process temperature, cooling water at temperature t0 needs to be added. t0 is less than the process temperature.

[0091] The required amount of cooling water (m) at temperature t0 can be calculated using the following formula:

[0092] m=λln(1+T / (T0-t0))

[0093] Where T is the temperature increase, T is the difference between the solution temperature and the process temperature of the blade layer, T0 is the process temperature, λ is the water replenishment coefficient, which is related to the number of layers where the stirring blades are located, and t0 is the cooling water temperature. To achieve rapid cooling, a speed compensation mechanism is triggered after water replenishment, increasing the blade speed of that layer by 20% to ensure that the solution in that layer quickly mixes with the cooling water and lowers the solution temperature. The blade speeds of other layers change linearly according to the increase or decrease in temperature, with the maximum speed change not exceeding ±10%.

[0094] The original rotational speed can refer to the corresponding rotational speed of the blades in that blade layer within the control parameters, that is, the final stable rotational speed of the blades in that blade layer. For example, the top layer blades return to the first rotational speed, the middle layer blades return to the second rotational speed, and the bottom layer blades return to the third rotational speed.

[0095] Three temperature sensors monitor the solution temperature of each layer in real time. Once the solution temperature returns to the process temperature, the blade rotation speed of each layer returns to the optimal speed at that process temperature.

[0096] For scenarios where the temperature is below the process temperature, when the temperature sensor of any blade layer detects that the temperature of that blade layer is lower than the process temperature, the solution needs to be heated. Specifically, heating is initiated using a heating device for that blade layer. The heating device can be a heating coil.

[0097] The heating temperature T of the heating device for heating the solution can be calculated using the following formula.S :

[0098] T S =T0+T(δ-1)e -ωt

[0099] Among them, T S The heating coil temperature is defined by δ, a heating parameter related to the solution's heat transfer characteristics, volume, and specific heat capacity, which can be determined experimentally. ω is the decay constant, set according to the heating rate, and t is the heating time, determined based on the process. To achieve rapid heating, a speed compensation mechanism is triggered during the heating process, increasing the blade speed of this layer by 20% to ensure sufficient contact between the solution in this layer and the heating coil for rapid heating. The blade speeds of other layers change linearly according to the temperature increase or decrease, with the maximum speed change not exceeding ±10%. Similarly, the original speed can refer to the corresponding speed of the blades in that layer within the control parameters, i.e., the final stable speed of the blades in that layer. For example, the top layer blades return to the first speed, the middle layer blades return to the second speed, and the bottom layer blades return to the third speed. Three temperature sensors monitor the solution temperature of each layer in real time. Once the solution temperature returns to the process temperature value, the blade speed of each layer returns to the optimal speed at that temperature.

[0100] As can be seen, by using a temperature sensor in the water-washing reactor, the water-washing and coating status of the high-nickel ternary cathode material in the reactor can be monitored in real time. The solution temperature can be adjusted based on the real-time solution temperature fed back by the temperature sensor, and the stirring speed of each layer of blades can be dynamically adjusted to ensure the high efficiency of the entire stirring process and achieve optimized coating effect.

[0101] In an optional embodiment, injecting cooling water into the water washing reactor according to the water replenishment amount corresponding to the blade layer includes: obtaining the pH of the solution in the water washing reactor; calculating the acidity of acidic substances and the alkalinity of alkaline substances based on the pH and the water replenishment amount; determining the material ratio of cooling water based on the water replenishment amount, acidity, and alkalinity; and injecting cooling water into the water washing reactor according to the material ratio.

[0102] In practice, during the temperature control process of the water washing reactor, the pH (Potential of Hydrogen) value will change due to the replenishment of cooling water. When the pH value deviates from the set range by more than ±0.5, the required amounts of pure water, sulfate, and alkaline substances can be calculated according to the ratio of pure water, sulfate, and alkaline substances, and then added in a linear proportion. The cooling water is actually a mixed liquid. During this process, a pH sensor monitors the solution pH value in real time until the solution pH meets the process requirements, at which point pH control ends. The replenishment water volume can refer to the volume of pure water. Cooling water must include at least pure water. Cooling water can also include acidic and alkaline substances. The amount of acidic substances can refer to the quantity of acidic substances, expressed by mass or volume. The amount of alkaline substances can refer to the quantity of alkaline substances, expressed by mass or volume.

[0103] In fact, cooling water can be a liquid with the same pH as the solution. This liquid can be pure water or a mixture of liquids with the same pH.

[0104] It is evident that by acquiring the state information of the high-nickel ternary cathode material and determining the quantities of acidic and alkaline substances other than pure water based on the amount of water replenished and the pH of the high-nickel ternary cathode material, the corresponding substances are added to the water washing reactor according to the amount of water replenished and the quantities of acidic and alkaline substances, forming supplementary cooling water. This ensures that the pH of the supplementary cooling water is the same as that of the water washing reactor, thus ensuring that the supplementary cooling water does not change the pH of the original solution in the water washing reactor.

[0105] In an optional embodiment, controlling the blades corresponding to the liquid level position in the water washing reactor to decelerate and stop stirring according to the control parameters and the liquid level position of the solution in the water washing reactor includes: when the liquid level position in the water washing reactor is higher than the blade position of the top blade, calculating the rotational speed of the top blade based on the height difference between the liquid level position and the blade position of the top blade; controlling the top blade to decelerate its rotation based on the rotational speed of the top blade; controlling the top blade to stop rotating when the liquid level position meets the blade position of the top blade; and when the liquid level position is higher than the blade position of the middle blade and lower than the position of the top blade, according to the control parameters and the liquid level position of the solution in the water washing reactor, controlling the top blade to stop rotating. The rotational speed of the middle layer blades is calculated based on the height difference between the blade positions of the middle layer blades and the top layer blades. The rotational speed of the middle layer blades is then controlled to decelerate. When the liquid level meets the requirements of the middle layer blade position, the rotational speed of the middle layer blades is stopped. When the liquid level is higher than the blade position of the bottom layer blades and lower than the blade position of the middle layer blades, the rotational speed of the bottom layer blades is calculated based on the height difference between the blade positions of the bottom layer blades and the middle layer blades. The rotational speed of the bottom layer blades is then controlled to decelerate. When the liquid level meets the requirements of the bottom layer blade position, the rotational speed of the bottom layer blades is stopped.

[0106] In this system, a liquid level sensor in the water washing reactor monitors the solution's position in real time. The screw pump's discharge rate is linked to the change in liquid level and the blade rotation speed. Typically, when the liquid level reaches a certain blade layer, that blade layer can stop rotating because its rotation usually has little effect on stirring the solution; even if it rotates, it's redundant and cannot effectively stir the solution, only causing redundant energy consumption. Therefore, as the liquid level approaches a certain blade layer, the blade rotation speed of that layer can be gradually reduced until the liquid level reaches that layer and the blades stop rotating.

[0107] In some embodiments, the top-layer blades are controlled to decelerate until they stop. After the top-layer blades stop rotating, the middle-layer blades are controlled to decelerate until they stop, and after the middle-layer blades stop rotating, the bottom-layer blades are controlled to decelerate until they stop. The rotational speed controlled for each blade layer can be calculated based on the following method.

[0108] Calculate the height difference h1 between the highest liquid level and the top blade position during solution stirring, and control the top blade speed according to the following relationship between the top blade rotation speed n1 and the height difference h1:

[0109] n1=-τ1h1

[0110] Where τ1 is the proportionality coefficient, and the rotation speed of the top blade stops when the solution level reaches the position of the top blade.

[0111] Simultaneously, the height difference h2 between the top and middle blades is calculated, and the speed of the middle blades is controlled according to the following relationship between the rotational speed n2 of the middle blade and the height difference h2:

[0112] n2=-τ2h2

[0113] Where τ2 is the proportionality coefficient, and the rotation speed of the middle blades stops when the solution level reaches the position of the middle blades.

[0114] Simultaneously, the height difference h3 between the middle and bottom blades is calculated, and the speed of the bottom blade is controlled according to the following relationship between the rotational speed n3 of the bottom blade and the height difference h3:

[0115] n3=-τ3h3

[0116] τ3 is a proportionality coefficient. When the solution level reaches the position of the bottommost blade, the rotation speed of the bottommost blade stops.

[0117] Optionally, the pressure value of the unloading pipeline can be monitored by a pressure sensor. When the pressure fluctuation of the unloading pipeline exceeds a set threshold, an emergency braking procedure can be triggered, such as stopping the operation of each component in the water washing reactor.

[0118] In some embodiments, the slurry in the water washing reactor can be unloaded by a spiral pump in the water washing reactor, and the unloading amount can be monitored in real time by a detection device such as a flow meter or a weight meter. Furthermore, the unloading time can be precisely adjusted to achieve precise control of the unloading amount of high-nickel ternary cathode material.

[0119] As can be seen, by controlling the top-layer blades to decelerate and stop when the high-nickel ternary cathode material in the water-washing reactor is removed, the top-layer blades are controlled to decelerate and stop rotating smoothly to ensure that the top-layer slurry can move orderly to the middle layer. Similarly, the middle-layer blades are controlled to decelerate and stop rotating smoothly to ensure that the middle-layer slurry can move orderly to the bottom layer. Finally, the bottom-layer blades are controlled to decelerate and stop rotating smoothly to ensure that the bottom-layer slurry can be removed in an orderly manner, ultimately achieving orderly and smooth removal from the top to the bottom layer.

[0120] The preceding embodiments provided real-time monitoring of the water washing and coating status of the high-nickel ternary cathode material within the reactor using temperature, pH, pressure, and level sensors. Based on sensor feedback, the stirring speed of each layer of blades is dynamically adjusted to ensure high efficiency throughout the stirring process. If the coating effect is unsatisfactory, the control system will automatically adjust the stirring speed at each stage based on feedback information to optimize the coating effect.

[0121] In an optional embodiment, the control parameters can be obtained through a pre-trained model. The control method for the water washing reactor may further include establishing a database of control parameters. The database establishment process may also include:

[0122] Process parameters, including rotation speed, temperature change, and pH change data, are collected in real time. The crystallinity of the particle coating layer after unloading is detected by X-ray diffraction, surface morphology is examined by scanning electron microscopy, and elemental distribution is detected by energy dispersive spectroscopy. Backpropagation (BP) neural network models are established, with 12 process parameter nodes in the input layer, 6 hidden nodes in the hidden layer, and the coating quality detection results in the output layer. The model parameters are automatically updated using data collected for each batch, generating a set of control parameters. This set of control parameters may include at least one process temperature and the corresponding control parameters for each process temperature.

[0123] In some embodiments, the training method of the neural network model includes: using a genetic algorithm to optimize parameters, setting the crossover probability to 0.6-0.8 and the mutation probability to 0.01-0.05; the loss function is L=α×(1-R a )+β×σ+γ×ΔC, where R a σ represents the uniformity of coating, σ represents the standard deviation of particle size distribution, and ΔC represents the elemental segregation. When the amount of training data is ≥1000 sets, the model prediction accuracy is ≥92%.

[0124] In one scenario, the control methods for a water-washing reactor may include:

[0125] At time t1, the top layer blades in the water washing reactor rotate stably and reach the optimal speed, while the middle layer blades begin to rotate.

[0126] At time t2, the top and middle blades in the water washing reactor rotate stably and reach the optimal speed, while the bottom blades begin to rotate and gradually accelerate to the optimal speed.

[0127] The screw pump is controlled to unload the slurry in the water washing reactor, and the top blades in the water washing reactor begin to decelerate until they stop.

[0128] At time t3, the top layer blades in the water washing reactor stop, and the middle layer blades begin to decelerate until they stop.

[0129] At time t4, the top and middle blades in the water washing reactor stop, while the bottom blades in the water washing reactor begin to decelerate until they stop.

[0130] Specifically:

[0131] High-nickel ternary cathode material, pure water, sulfate, and alkaline substances are added to a water-washing reactor according to a standard ratio. The solution is then heated to the process temperature via a built-in heating coil. When the solution temperature reaches the process temperature, the top blades inside the water-washing reactor begin to rotate; the rotation of the top blades is initiated with a ramp acceleration of 5-15 rpm / s. Heating continues until the solution temperature reaches the process temperature. A PID control algorithm is used to linearly accelerate to the first rotational speed.

[0132] At time t1, the top layer blades in the reactor rotate steadily and reach the first rotational speed, while the middle layer blades begin to rotate.

[0133] When the laser particle size analyzer detects that the D50 value of the top layer material reaches 0.8-1.2μm and PDI < 0.3, and the top layer blades have been running stably for more than 30 seconds, the rotation of the middle layer blades is started; if either condition is not met, the rotation of the middle layer blades is not started, and the PID control of the top layer blades continues, along with the period judgment.

[0134] Specifically, at time t1, when the top-layer blades in the reactor reach their optimal rotational speed and stabilize at the same speed as the first rotational speed, the middle-layer blades are controlled to begin stirring. The rotation of the middle-layer blades needs to be smoothly transitioned to ensure that the top-layer and middle-layer blades can maintain stable stirring at their optimal rotational speeds together.

[0135] By using temperature sensors, pressure sensors, pH sensors, and level gauges, the temperature, pressure, pH value, and level changes during the water washing and coating process are monitored in real time. This enables the acquisition of state information of the middle layer high-nickel ternary cathode material during water washing. By analyzing the state changes of the high-nickel ternary cathode material, the stirring speed of the middle layer blades is intelligently adjusted to ensure that the middle layer high-nickel ternary cathode material and the top layer high-nickel ternary cathode material have a consistent coating effect.

[0136] The speed of the middle layer agitator blades is received, recorded, and stored. The obtained speed during uniform and stable rotation is compared and adjusted with the second speed to achieve precise control of the speed of the middle layer agitator blades.

[0137] S3: When t2, the top and middle blades in the reactor rotate stably and reach the optimal speed, while the bottom blades begin to rotate and gradually accelerate to the optimal speed.

[0138] The acceleration a=K of the bottom blade is calculated in real time using a fuzzy controller. p ×ΔN+K i ×∫ΔN dt+K d ×d(ΔN) / dt, where the proportional coefficient is dynamically adjusted according to the material viscosity measured by the online viscometer;

[0139] Specifically, at time t2, when the top-layer blades in the reactor reach a stable first rotational speed and the middle-layer blades reach a stable second rotational speed, the speed difference between the real-time rotational speeds of the middle-layer blades and the top-layer blades, as well as the liquid level drop rate, are determined. When the speed difference is ≤5% and the liquid level drop rate is stable within ±5%, the bottom-layer blades are controlled to start stirring, employing the same smooth transition strategy to ensure that the top-layer, middle-layer, and bottom-layer blades can maintain optimal speed and stable stirring together. When either the speed difference is ≤5% or the liquid level drop rate is stable within ±5%, the bottom-layer blades are not controlled to start rotating.

[0140] By using temperature sensors, pressure sensors, pH sensors, and level gauges, the temperature, pressure, pH value, and level changes during the water washing and coating process are monitored in real time. This enables the acquisition of state information of the middle layer high-nickel ternary cathode material during water washing. By analyzing the state changes of the high-nickel ternary cathode material, the stirring speed of the bottom blades is intelligently adjusted to ensure that the bottom layer high-nickel ternary cathode material has a consistent coating effect with the top and middle layers of high-nickel ternary cathode material.

[0141] The speed of the bottom stirring blades is received, recorded and stored. The speed obtained during uniform and stable rotation is compared and adjusted with the third speed to achieve precise control of the speed of the bottom stirring blades.

[0142] S4: Control the screw pump to unload the slurry in the reactor, and the top blades in the reactor will start to decelerate until they stop;

[0143] Establish a linear relationship between the discharge rate of the screw pump and the blade rotation speed. Set the rotation speed to decrease by 50 rpm for every 10 m³ / h increase in discharge flow rate. When the pressure sensor detects a pipeline pressure fluctuation exceeding ±0.5 MPa, trigger emergency braking.

[0144] Specifically, the screw pump is controlled to unload the slurry in the water washing reactor. The unloading amount is monitored in real time by a flow meter or weight meter and the unloading time is precisely adjusted to achieve precise control of the unloading amount of high-nickel ternary cathode material.

[0145] When the high-nickel ternary cathode material is removed from the reactor, the top blades are controlled to decelerate until they stop. The rotation of the top blades needs to be smooth to ensure that the top slurry can move orderly to the middle layer. When the solution level reaches the position of the top blades, the top blades are controlled to stop.

[0146] S5: When t3, the top layer blades in the reactor stop, and the middle layer blades begin to decelerate until they stop;

[0147] Specifically, at time t3, the top-layer blades in the reactor stop, and the middle-layer blades begin to decelerate until they stop. The rotation of the middle-layer blades needs to be smooth to ensure that the middle-layer slurry can move orderly to the bottom layer. When the solution level reaches the position of the middle-layer blades, the middle-layer blades are stopped.

[0148] S6: When t4, the top and middle blades in the reactor stop, and the bottom blades in the reactor begin to decelerate until they stop.

[0149] Specifically, at t4, the top and middle blades in the reactor stop, and the bottom blades are controlled to decelerate until they stop. The rotation of the bottom blades needs to be smooth to ensure that the bottom slurry can be discharged in an orderly manner. When the solution level reaches the position of the bottom blades, the bottom blades are controlled to stop.

[0150] S0: Perform packaging quality inspection on the product, establish a BP neural network model with 12 input nodes, optimize the network parameters using a genetic algorithm, with a crossover probability of 0.6-0.8, a mutation probability of 0.01-0.05, and a loss function L=α×(1-R a )+β×σ+γ×ΔC, generate a database of control parameters and coating effects.

[0151] By combining the testing of the product's washing and coating effect after production, a database is generated to compare the selection and control of all the above parameters and the washing and coating effect, as well as the influencing factors. Through data iteration, the process flow and parameter selection and control can be optimized a second time to obtain the optimal rotation speed, providing data support for subsequent production.

[0152] To facilitate user operation, a user-friendly human-computer interaction interface can be designed. Users can set initial stirring parameters and monitor the coating status through the interface, and can adjust relevant parameters in real time during the stirring process.

[0153] This invention, through optimized rotation speed control, reduces energy consumption and improves the efficiency of the stirring process while ensuring the coating effect of high-nickel ternary cathode materials. It also allows for real-time monitoring of temperature, pressure, pH, and liquid level changes during the reaction process, acquiring state information of the high-nickel ternary cathode materials during water washing. Analyzing these state changes, the invention intelligently adjusts the stirring speed. Furthermore, it considers the characteristics of non-Newtonian fluids, achieving adaptive adjustment during stirring to ensure thorough water washing and coating of the high-nickel ternary cathode materials. Real-time monitoring and adjustment of stirring power consumption achieves optimal energy efficiency. A closed-loop feedback control mechanism is introduced to adjust the stirring speed promptly based on real-time sensor feedback, ensuring effective water washing and coating of the high-nickel ternary cathode materials. An interactive interface allows operators to easily set targets during the water washing reaction, monitor real-time data, and manually or automatically adjust the stirring speed as needed. Through sensor data fusion, intelligent algorithms, energy efficiency optimization, and feedback control, the invention achieves the goal of optimizing coating effects while reducing energy consumption. This invention has broad application prospects and can provide more energy-efficient production solutions for fields such as chemistry, pharmaceuticals, and new energy.

[0154] Figure 3 This is a schematic diagram of a control device for a water washing reactor provided in an embodiment of the present invention. This device can execute a control method for the water washing reactor. The device can be implemented in hardware and / or software, and can be configured in an electronic device that carries a certain data processing capability.

[0155] See Figure 3 The control device for the water washing reactor shown includes:

[0156] The parameter acquisition module 301 is used to acquire the control parameters of the water washing reactor.

[0157] The heating control module 302 is used to heat the solution in the water washing reactor according to the control parameters when it is determined that the high-nickel ternary cathode material and pure water added to the water washing reactor meet the control parameters.

[0158] The stirring control module 303 is used to control each layer of blades in the water washing reactor to stir the solution in the water washing reactor in sequence according to the stirring sequence corresponding to the position of the blades in the water washing reactor and according to the control parameters.

[0159] The feedback control module 304 is used to control the real-time temperature of the solution in the water washing reactor to continuously meet the process temperature when the temperature of the solution in the water washing reactor meets the process temperature in the control parameters and the rotation speed of each layer of blades meets the corresponding rotation speed in the control parameters.

[0160] The unloading control module 305 is used to control the blades corresponding to the liquid level position in the water washing reactor to decelerate and stop stirring when unloading the solution in the water washing reactor, based on the control parameters and the liquid level position of the solution in the water washing reactor.

[0161] The technical solution of this invention obtains the control parameters of the water washing reactor. When the ratio of high-nickel ternary cathode material to pure water meets the control parameters, it triggers the heating of the solution in the water washing reactor and sequentially triggers the blades to start rotating, so that the solution in the water washing reactor is stirred at a specified temperature and speed, and a constant process temperature is maintained during the stirring process until the stirring is completed. When the solution in the water washing reactor is unloaded, the blades are controlled to decelerate and stop rotating according to the control parameters and the page position, so that the stirring of the solution in the water washing reactor stops. It can be adjusted in real time according to the real-time stirring situation in the water washing reactor, avoiding fixed speed or timed speed control. This solves the problem that the water washing and coating effect of high-nickel ternary cathode material is inconsistent due to the existing reliance on fixed speed or simple timed speed control to achieve the entire water washing and coating process. It improves the fineness and precision of blade speed control, and at the same time improves stirring efficiency, thereby improving the water washing and coating effect of high-nickel ternary cathode material.

[0162] Optional, the stirring control module 303 is specifically used for:

[0163] Trigger control to rotate the top blades of the water washing reactor;

[0164] When the top blade reaches the first speed in the control parameters, the top blade is controlled to continue rotating at the first speed.

[0165] Based on the real-time rotational speed of the top layer blades, the rotation of the middle layer blades is triggered and controlled.

[0166] When the middle layer blade reaches the second speed in the control parameters, the middle layer blade is controlled to continue rotating at the second speed.

[0167] Based on the real-time rotational speed of the middle layer blades, the rotation of the bottom layer blades is triggered and controlled.

[0168] When the bottom blade reaches the third rotational speed in the control parameters, the bottom blade is controlled to continue rotating at the third rotational speed.

[0169] Optional, the stirring control module 303 is specifically used for:

[0170] The real-time rotational speed of the top blade is obtained, and the first rotational duration of the top blade at the first rotational speed is calculated.

[0171] The particle size distribution of the upper layer material in the water washing reactor was detected;

[0172] The rate of liquid level drop in the water-washing reactor was detected;

[0173] Based on the first rotation duration, the particle size distribution, and the liquid level drop rate, determine whether to trigger the control of the middle layer blade rotation.

[0174] Optional, the stirring control module 303 is specifically used for:

[0175] Obtain the real-time rotational speed of the top layer blade and the real-time rotational speed of the middle layer blade;

[0176] Calculate the speed difference between the real-time rotational speed of the top layer blade and the real-time rotational speed of the middle layer blade;

[0177] Based on the speed difference, determine whether to trigger the rotation of the bottom blade.

[0178] Optional, feedback control module 304, specifically used for:

[0179] The temperature of the solution in at least one blade layer in the water washing reactor is detected to obtain the blade layer temperature of each blade layer.

[0180] When the blade layer temperature is higher than the process temperature in the control parameters corresponding to the blade layer, the amount of cooling water to be replenished for the blade layer is calculated based on the process temperature, the blade layer temperature, and the cooling water temperature.

[0181] Cooling water is injected into the water washing reactor according to the corresponding water replenishment amount of the blade layer, and the blade rotation speed of the blade layer is controlled to be increased.

[0182] When the blade layer temperature of the blade layer is equal to the corresponding process temperature of the blade layer, the blade rotation speed of the blade layer is controlled to return to the original rotation speed.

[0183] When the blade layer temperature is lower than the process temperature in the control parameters corresponding to the blade layer, the heating temperature of the heating device corresponding to the blade layer is calculated based on the process temperature, the blade layer temperature, and the cooling water temperature.

[0184] The heating device of the blade layer is controlled to heat the blade layer according to the heating temperature corresponding to the blade layer, and the blade rotation speed of the blade layer is increased accordingly.

[0185] When the blade layer temperature is equal to the corresponding process temperature, the blade rotation speed of the blade layer is controlled to return to its original speed.

[0186] Optional, feedback control module 304, specifically used for:

[0187] Obtain the pH of the solution in the water-washing reactor;

[0188] Based on the pH and the amount of water added, calculate the acidity of the acidic substance and the alkalinity of the alkaline substance.

[0189] The material ratio of the cooling water is determined based on the amount of water replenishment, the amount of acidity, and the amount of alkalinity.

[0190] Cooling water is injected into the water washing reactor according to the material ratio.

[0191] Optional, the unloading control module 305 is specifically used for:

[0192] When the liquid level in the water washing reactor is higher than the blade position of the top-layer blade, the rotational speed of the top-layer blade is calculated based on the height difference between the liquid level and the blade position of the top-layer blade.

[0193] The top-level blades are controlled to decelerate based on their rotational speed.

[0194] When the liquid level position satisfies the blade position of the top blade, control the top blade to stop rotating;

[0195] When the liquid level is higher than the position of the middle layer blade and lower than the position of the top layer blade, the rotational speed of the middle layer blade is calculated based on the height difference between the positions of the middle layer blade and the top layer blade.

[0196] The rotation speed of the middle layer blades is controlled to reduce the speed of the middle layer blades.

[0197] When the liquid level position meets the blade position of the middle layer blade, control the middle layer blade to stop rotating;

[0198] When the liquid level is higher than the blade position of the bottom layer blade and lower than the blade position of the middle layer blade, the rotational speed of the bottom layer blade is calculated based on the height difference between the blade positions of the bottom layer blade and the blade positions of the middle layer blade.

[0199] The rotation speed of the bottom blades is controlled to reduce the speed of the bottom blades.

[0200] When the liquid level position meets the blade position of the bottom blade, the bottom blade is controlled to stop rotating.

[0201] The control device for the water washing reactor provided in the embodiments of the present invention can execute the control method for the water washing reactor provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the control method for the water washing reactor.

[0202] The data acquisition and other aspects involved in the technical solutions of this invention comply with relevant laws and regulations and do not violate public order and good morals.

[0203] Figure 4 A schematic diagram of an electronic device 400 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (such as helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0204] like Figure 4 As shown, the electronic device 400 includes at least one processor 401 and a memory, such as a read-only memory (ROM) 402 or a random access memory (RAM) 403, communicatively connected to the at least one processor 401. The memory stores computer programs executable by the at least one processor. The processor 401 can perform various appropriate actions and processes based on the computer program stored in the ROM 402 or loaded into the RAM 403 from storage unit 408. The RAM 403 may also store various programs and data required for the operation of the electronic device 400. The processor 401, ROM 402, and RAM 403 are interconnected via a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0205] Multiple components in electronic device 400 are connected to I / O interface 405, including: input unit 406, such as keyboard, mouse, etc.; output unit 407, such as various types of displays, speakers, etc.; storage unit 408, such as disk, optical disk, etc.; and communication unit 409, such as network card, modem, wireless transceiver, etc. Communication unit 409 allows electronic device 400 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0206] Processor 401 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 401 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 401 performs the various methods and processes described above, such as the control method for a water washing reactor.

[0207] In some embodiments, the control method for the water washing reactor can be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 408. In some embodiments, part or all of the computer program can be loaded and / or installed on electronic device 400 via ROM 402 and / or communication unit 409. When the computer program is loaded into RAM 403 and executed by processor 401, one or more steps of the control method for the water washing reactor described above can be performed. Alternatively, in other embodiments, processor 401 can be configured to perform the control method for the water washing reactor by any other suitable means (e.g., by means of firmware).

[0208] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations may include: implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0209] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0210] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0211] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0212] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or middleware components (e.g., application servers), or frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0213] A computing system can include clients and servers. Clients and servers are generally geographically separated and typically interact via communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system. It addresses the shortcomings of traditional physical hosts and VPS (Virtual Private Server) services, such as high management difficulty and weak business scalability.

[0214] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0215] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for controlling a water-washing reactor, characterized in that, The method includes: Obtain the control parameters of the water-washing reactor; When it is determined that the high-nickel ternary cathode material and pure water added to the water washing reactor meet the control parameters, the solution in the water washing reactor is heated according to the control parameters; According to the stirring sequence corresponding to the position of the blades in the water washing reactor, and based on the control parameters, the blades in each layer of the water washing reactor are sequentially controlled to stir the solution in the water washing reactor, including: Trigger control to rotate the top blades of the water washing reactor; When the top blade reaches the first speed in the control parameters, the top blade is controlled to continue rotating at the first speed. Based on the real-time rotational speed of the top layer blades, the rotation of the middle layer blades is triggered and controlled. When the middle layer blade reaches the second speed in the control parameters, the middle layer blade is controlled to continue rotating at the second speed. Based on the real-time rotational speed of the middle layer blades, the rotation of the bottom layer blades is triggered and controlled. When the bottom blade reaches the third rotational speed in the control parameters, the bottom blade is controlled to continue rotating at the third rotational speed. When the temperature of the solution in the water washing reactor meets the process temperature in the control parameters and the rotation speed of each layer of blades meets the corresponding rotation speed in the control parameters, the real-time temperature of the solution in the water washing reactor is controlled to continuously meet the process temperature. When unloading the solution from the water washing reactor, the blades corresponding to the liquid level position in the water washing reactor are controlled to decelerate and stop stirring according to the control parameters and the liquid level position of the solution in the water washing reactor.

2. The method according to claim 1, characterized in that, The step of triggering and controlling the rotation of the middle layer blades based on the real-time rotational speed of the top layer blades includes: The real-time rotational speed of the top blade is obtained, and the first rotational duration of the top blade at the first rotational speed is calculated. The particle size distribution of the upper layer material in the water washing reactor was detected; The rate of liquid level drop in the water-washing reactor was detected; Based on the first rotation duration, the particle size distribution, and the liquid level drop rate, determine whether to trigger the control of the middle layer blade rotation.

3. The method according to claim 1, characterized in that, The step of triggering and controlling the rotation of the bottom layer blades based on the real-time rotational speed of the middle layer blades includes: Obtain the real-time rotational speed of the top layer blade and the real-time rotational speed of the middle layer blade; Calculate the speed difference between the real-time rotational speed of the top layer blade and the real-time rotational speed of the middle layer blade; Based on the speed difference, determine whether to trigger the rotation of the bottom blade.

4. The method according to claim 1, characterized in that, Controlling the real-time temperature of the solution in the water washing reactor to continuously meet the process temperature includes: The temperature of the solution in at least one blade layer in the water washing reactor is detected to obtain the blade layer temperature of each blade layer. When the blade layer temperature is higher than the process temperature in the control parameters corresponding to the blade layer, the amount of cooling water to be replenished for the blade layer is calculated based on the process temperature, the blade layer temperature, and the cooling water temperature. Cooling water is injected into the water washing reactor according to the corresponding water replenishment amount of the blade layer, and the blade rotation speed of the blade layer is controlled to be increased. When the blade layer temperature of the blade layer is equal to the corresponding process temperature of the blade layer, the blade rotation speed of the blade layer is controlled to return to the original rotation speed. When the blade layer temperature is lower than the process temperature in the control parameters corresponding to the blade layer, the heating temperature of the heating device corresponding to the blade layer is calculated based on the process temperature, the blade layer temperature, and the cooling water temperature. The heating device of the blade layer is controlled to heat the blade layer according to the heating temperature corresponding to the blade layer, and the blade rotation speed of the blade layer is increased accordingly. When the blade layer temperature is equal to the corresponding process temperature, the blade rotation speed of the blade layer is controlled to return to its original speed.

5. The method according to claim 4, characterized in that, According to the water replenishment amount corresponding to the blade layer, cooling water is injected into the water washing reactor, including: Obtain the pH of the solution in the water-washing reactor; Based on the pH and the amount of water added, calculate the acidity of the acidic substance and the alkalinity of the alkaline substance. The material ratio of the cooling water is determined based on the amount of water replenishment, the amount of acidity, and the amount of alkalinity. Cooling water is injected into the water washing reactor according to the material ratio.

6. The method according to claim 1, characterized in that, The step of controlling the blades corresponding to the liquid level position in the water washing reactor to decelerate and stop stirring according to the control parameters and the liquid level position of the solution in the water washing reactor includes: When the liquid level in the water washing reactor is higher than the blade position of the top blade, the rotational speed of the top blade is calculated based on the height difference between the liquid level and the blade position of the top blade. The top-level blades are controlled to decelerate based on their rotational speed. When the liquid level position satisfies the blade position of the top blade, control the top blade to stop rotating; When the liquid level is higher than the position of the middle layer blades and lower than the position of the top layer blades, the rotational speed of the middle layer blades is calculated based on the height difference between the positions of the middle layer blades and the top layer blades. The rotation speed of the middle layer blades is controlled to reduce the speed of the middle layer blades. When the liquid level position meets the blade position of the middle layer blade, control the middle layer blade to stop rotating; When the liquid level is higher than the position of the bottom layer blade and lower than the position of the middle layer blade, the rotational speed of the bottom layer blade is calculated based on the height difference between the positions of the bottom layer blade and the middle layer blade. The rotation speed of the bottom blades is controlled to reduce the speed of the bottom blades. When the liquid level position meets the blade position of the bottom blade, the bottom blade is controlled to stop rotating.

7. A control device for a water-washing reactor, characterized in that, include: The parameter acquisition module is used to acquire the control parameters of the water washing reactor. A heating control module is used to heat the solution in the water washing reactor according to the control parameters when it is determined that the high-nickel ternary cathode material and pure water added to the water washing reactor meet the control parameters. A stirring control module is used to sequentially control each layer of blades in the water washing reactor to stir the solution in the water washing reactor according to the stirring sequence corresponding to the position of the blades in the reactor, based on the control parameters. This includes: Trigger control to rotate the top blades of the water washing reactor; When the top blade reaches the first speed in the control parameters, the top blade is controlled to continue rotating at the first speed. Based on the real-time rotational speed of the top layer blades, the rotation of the middle layer blades is triggered and controlled. When the middle layer blade reaches the second speed in the control parameters, the middle layer blade is controlled to continue rotating at the second speed. Based on the real-time rotational speed of the middle layer blades, the rotation of the bottom layer blades is triggered and controlled. When the bottom blade reaches the third rotational speed in the control parameters, the bottom blade is controlled to continue rotating at the third rotational speed. The feedback control module is used to control the real-time temperature of the solution in the water washing reactor to continuously meet the process temperature when the temperature of the solution in the water washing reactor meets the process temperature in the control parameters and the rotation speed of each blade in the layer meets the corresponding rotation speed in the control parameters. The unloading control module is used to control the blades in the water washing reactor corresponding to the liquid level position to decelerate and stop stirring when unloading the solution in the water washing reactor, based on the control parameters and the liquid level position of the solution in the water washing reactor.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the control method for the water washing reactor according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed by a processor, implement the control method for the water washing reactor as described in any one of claims 1-6.

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