Control method of pulping process and related device

Abstract

The invention discloses a control method of a pulping process and a related device. The method comprises the following steps: acquiring a plurality of first torque outputs of a spindle motor within a first preset time; determining a first working rotating speed of the spindle motor according to the plurality of first torque outputs; the mapping relation between the discharging flow of a circulating pump and the working rotating speed of the main shaft motor is determined; the first discharging flow of the circulating pump is determined according to the mapping relation and the first working rotating speed; and performing matching adjustment operation according to the first working rotating speed and the first discharging flow so as to realize cooperative control of the main shaft motor and the circulating pump to complete pulping operation. According to the invention, stable operation of the pulping process can be realized.

Description

Technical Field

[0001] The present application relates to the field of pulping technology, and in particular to a control method and related devices for a pulping process. Background Art

[0002] In the fields of new energy batteries, food, medicine, chemicals, and more, powders and liquids need to be mixed to form slurries. During the stirring process, the rheological properties of the powder-liquid mixture change dynamically as the stirring progresses. Viscosity increases continuously due to factors such as solvent evaporation, particle agglomeration, or chemical reactions, increasing the stirring resistance. Alternatively, the viscosity decreases due to powder wetting and dispersion, and the gel structure breaks down, resulting in a corresponding decrease in stirring resistance.

[0003] This time-varying characteristic of viscosity poses a severe challenge to the control of the mixing process. During the slurry thickening stage, the viscosity continues to increase. When it is at the highest stage, the spindle motor load is the largest, and over-torque shutdown is prone to occur, causing abnormal shutdown of the equipment. During the slurry thickening stage, the viscosity slowly decreases, making it difficult to maintain an efficient mixing state, resulting in energy waste and low production efficiency.

[0004] However, it is currently impossible to accurately monitor and respond to different slurry stages in real time. This not only affects production efficiency and increases production time costs, but may also damage key components such as motors, shorten equipment life, and affect the stability of slurry mixing quality, thereby affecting the quality of subsequent coating and other processes. Summary of the Invention

[0005] The embodiments of the present application provide a control method and related devices for a pulping process to improve the stability of the pulp stirring quality and ensure the stable operation of the pulping process.

[0006] In a first aspect, an embodiment of the present application provides a method for controlling a pulping process, comprising: Acquire multiple first torque outputs of the spindle motor within a first preset time; determining a first operating speed of the spindle motor according to the plurality of first torque outputs; Determine a mapping relationship between the discharge flow rate of the circulation pump and the operating speed of the spindle motor; determining a first discharge flow rate of the circulation pump according to the mapping relationship and the first operating speed; A matching adjustment operation is performed according to the first working speed and the first discharge flow rate to achieve coordinated control of the spindle motor and the circulation pump to complete the pulping operation.

[0007] Wherein, determining the first operating speed of the spindle motor according to the multiple first torque outputs includes: detecting that a first torque output is greater than a preset torque output, and determining a continuous degree to which the plurality of first torque outputs are greater than the preset torque output; detecting that the continuity degree is greater than a preset continuity degree, determining differences between the plurality of first torque outputs and the preset torque output, and obtaining a plurality of first differences; extracting statistical features of the plurality of first differences, where the statistical features are used to characterize fluctuations of the plurality of first differences; The first operating speed is determined according to the statistical characteristics.

[0008] Wherein, determining the first operating speed according to the statistical characteristics includes: determining an operating speed range according to the statistical characteristics; Obtaining a load fluctuation constraint of the spindle motor and a slurry mixing uniformity constraint; The first operating speed is determined in the operating speed range according to the load fluctuation constraint and the mixing uniformity constraint.

[0009] Wherein, determining the first discharge flow rate of the circulation pump according to the mapping relationship and the first operating speed includes: Obtaining a preset operating speed of the spindle motor; Determine a flow factor according to the first operating speed and the preset operating speed through the mapping relationship, wherein the flow factor is used to characterize the influence of the adjustment of the operating speed on the discharge flow rate; Obtaining a second discharge flow rate at the preset operating speed; The first discharge flow rate is determined according to the flow factor and the second discharge flow rate.

[0010] Wherein, determining the first discharge flow rate according to the flow factor and the second discharge flow rate includes: determining a speed adjustment range according to the first operating speed; adjusting the flow factor according to the speed adjustment range; The first discharge flow rate is determined according to the adjusted flow factor and the second discharge flow rate.

[0011] The method further comprises: determining a second difference between the slurry delivery flow rate and a preset delivery flow rate; If it is detected that the second difference is greater than a preset difference, abnormal behavior detection is performed on the spindle motor and the circulation pump, and a detection report including the cause of the abnormality is generated.

[0012] After performing the matching adjustment operation according to the first operating speed and the first discharge flow rate, the method further includes: detecting that the execution cycle of the matching adjustment operation ends, and obtaining a second torque output of the spindle motor within a second preset time; determining a second operating speed of the spindle motor according to the second torque output; determining a third discharge flow rate of the circulation pump according to the mapping relationship and the second operating speed; The matching adjustment operation is performed according to the second operating speed and the third discharge flow rate.

[0013] In a second aspect, an embodiment of the present application provides a control device for a pulping process, comprising: An acquiring unit, configured to acquire a plurality of first torque outputs of the spindle motor within a first preset time; a first determining unit, configured to determine a first operating speed of the spindle motor according to the plurality of first torque outputs; A second determining unit is used to determine a mapping relationship between the discharge flow rate of the circulation pump and the operating speed of the spindle motor; a third determining unit, configured to determine a first discharge flow rate of the circulation pump according to the mapping relationship and the first operating speed; The regulating unit is used to perform matching regulating operations according to the first working speed and the first discharge flow rate, so as to realize the coordinated control of the spindle motor and the circulation pump to complete the pulping operation.

[0014] In a third aspect, an embodiment of the present application provides an electronic device comprising a memory, a processor, and an executable program code stored in the memory and runnable on the processor, wherein the processor executes the steps of the method described in the first aspect when executing the executable program code.

[0015] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which executable program code is stored. The executable program code includes execution instructions, and the execution instructions are used to execute the steps of the method described in the first aspect.

[0016] In a fifth aspect, embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a computer to perform some or all of the steps described in the first aspect of the embodiments of the present application. The computer program product may be a software installation package.

[0017] It can be seen that in an embodiment of the present application, first, multiple first torque outputs of the spindle motor within a first preset time are obtained; then, the first operating speed of the spindle motor is determined based on the multiple first torque outputs; then, the mapping relationship between the discharge flow rate of the circulation pump and the operating speed of the spindle motor is determined; then, the first discharge flow rate of the circulation pump is determined based on the mapping relationship and the first operating speed; finally, a matching and adjustment operation is performed based on the first operating speed and the first discharge flow rate to achieve coordinated control of the spindle motor and the circulation pump to complete the pulping operation.

[0018] This application triggers the speed regulation mechanism by real-time monitoring of the actual torque value of the spindle motor, effectively solving the problem of frequent shutdown of the spindle motor at load peak, and links the speed regulation mechanism with the discharge flow of the circulation pump. Through the mapping relationship between flow and speed, it ensures that when the spindle speed changes, the flow of the circulation pump is adaptively adjusted to avoid sudden changes in the slurry flow state, improve the stability of the slurry stirring quality, and ensure the stable operation of the pulping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a system architecture diagram of a pulping system provided by an embodiment of the present application; Figure 2 This is a flow chart of a method for controlling a pulping process provided in an embodiment of the present application; Figure 3 This is a flow chart of a discharge flow decision process provided by an embodiment of the present application; Figure 4 This is a flow chart of a discharge flow matching calculation provided in an embodiment of the present application; Figure 5 This is a flowchart of an anomaly detection method provided by an embodiment of the present application; Figure 6 This is a block diagram of the functional units of a control device for a pulping process provided by an embodiment of the present application; Figure 7 This is a block diagram of the functional units of another control device for a pulping process provided by an embodiment of the present application; Figure 8 This is a structural diagram of an electronic device proposed in an embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] The terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0023] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] In the pulping process of the lithium battery industry, slurry preparation is the core pre-process of lithium battery production, and its quality directly determines the subsequent electrode coating, battery assembly and the electrochemical performance of the final product.

[0025] During the pulping process, the slurry undergoes multiple steps, including dispersion, mixing, and homogenization. When the slurry reaches its highest viscosity, its rheological properties change significantly, causing not only a sharp decrease in fluidity but also strong adhesion and resistance to the mixing equipment, leading to peak spindle motor load. During this stage, the instantaneous torque demand on the motor can reach many times that of normal operating conditions. Without precise control, the over-torque protection mechanism can easily be triggered, causing a shutdown.

[0026] Existing technologies are usually unable to accurately monitor and respond to torque changes in this stage in real time, resulting in frequent equipment shutdowns, unplanned interruptions to the production line, and increased production costs.

[0027] At the same time, the motor is subjected to huge current shocks and mechanical stress during repeated start-stop processes, which accelerates the wear of key components such as bearings and rotors, increases the equipment failure rate, and significantly shortens maintenance costs and replacement cycles.

[0028] In addition, problems such as slurry static stratification and local solidification caused by shutdown will destroy the uniformity and stability of the slurry, resulting in defects such as uneven thickness and powder loss in the coating process, ultimately affecting the core performance indicators of lithium batteries such as energy density and cycle life.

[0029] In response to the above problems, an embodiment of the present application provides a control method and related devices for a pulping process, which will be described in detail below with reference to the accompanying drawings.

[0030] See also Figure 1 , Figure 1 This is a system architecture diagram of a pulping system provided by an embodiment of the present application. Figure 1 As shown, the pulping system 100 includes a monitoring module 101, a control module 102, a speed regulating module 103 and a flow regulating module 104. The monitoring module 101, the control module 102, the speed regulating module 103 and the flow regulating module 104 are in communication with each other.

[0031] The monitoring module 101 may be a spindle motor torque monitoring device installed on the spindle motor, capable of accurately monitoring the torque output value of the motor in real time and transmitting the data to the control module 102 .

[0032] Among them, the control module 102 is used to receive the data transmitted by the monitoring module 101, set the torque threshold, and when the monitored torque value continuously approaches or reaches the torque threshold within a preset time, trigger the speed reduction instruction or speed increase instruction, determine the speed adjustment parameters, and match and calculate the circulation pump discharge flow adjustment parameters.

[0033] Among them, the speed adjustment module 103 can be a spindle motor speed adjustment device, which receives a speed reduction instruction or a speed increase instruction from the control module 102, and reduces or increases the speed of the spindle motor to the target data according to the speed adjustment parameters in the instruction to reduce or increase the torque output.

[0034] Among them, the flow regulation module 104 can be a circulation pump flow regulation device, which receives the flow regulation instruction of the control module 102 and adjusts the discharge flow of the circulation pump according to the instruction, so that the circulation discharge speed of the slurry matches the stirring capacity after the spindle motor is decelerated, ensuring the balanced operation of the entire pulping system and avoiding the spindle motor from shutting down due to over-torque.

[0035] Based on this, the present application provides a control method and related devices for a pulping process, which will be described in detail below with reference to the accompanying drawings.

[0036] See also Figure 2 , Figure 2 This is a flow chart of a control method for a pulping process provided in an embodiment of the present application, such as Figure 2 As shown, the method includes the following steps: S210 , obtaining a plurality of first torque outputs of a spindle motor within a first preset time.

[0037] The torque output of the spindle motor is obtained through a spindle motor torque monitoring device. The spindle motor torque monitoring device is installed on the spindle motor and can accurately monitor the torque output value of the motor in real time.

[0038] Specifically, the spindle motor torque monitoring device is a torque sensor.

[0039] Among them, in the pulping process of the lithium battery industry, the spindle motor serves as the core power device. Its role runs through the entire process of slurry preparation. By precisely controlling the stirring power output, it ensures that the physical properties and chemical uniformity of the slurry meet the subsequent production requirements.

[0040] Specifically, the spindle motor drives the stirring paddle to rotate, generating shear force, turbulence and circulating flow field in the slurry system, promoting multi-scale mixing of components such as positive and negative electrode materials, binders, and solvents.

[0041] For example, the rotation of the blades drives the overall flow of the slurry, breaking the material accumulation state, making the material particles evenly distributed in the solvent, and avoiding agglomeration.

[0042] Among them, the slurry viscosity changes dynamically with the process stage during the slurry making process, such as from the initial low-viscosity dispersion stage to the later high-viscosity homogenization stage. The spindle motor needs to have the ability to adapt to dynamic loads.

[0043] Specifically, the motor's built-in torque sensor monitors the load in real time. When the torque exceeds the preset value, the protection mechanism is triggered. The overload can be alleviated through a short speed reduction or pulse stirring mode to avoid damage to the slurry structure caused by hard shutdown.

[0044] S220 , determining a first operating speed of the spindle motor according to the plurality of first torque outputs.

[0045] In a possible embodiment, determining the first operating speed of the spindle motor based on the multiple first torque outputs includes: detecting that there is a first torque output greater than a preset torque output, determining the continuity degree of the multiple first torque outputs greater than the preset torque output; detecting that the continuity degree is greater than the preset continuity degree, determining the difference between the multiple first torque outputs and the preset torque output to obtain multiple first differences; extracting statistical characteristics of the multiple first differences, wherein the statistical characteristics are used to characterize the fluctuation of the multiple first differences; and determining the first operating speed based on the statistical characteristics.

[0046] The degree of continuity is used to indicate the duration or number of times the threshold value is exceeded, such as how many times the threshold value is exceeded continuously or how long the threshold value lasts.

[0047] Among them, when the spindle torque continuously exceeds the upper limit threshold, the speed reduction is triggered to avoid false triggering of adjustments due to instantaneous torque fluctuations.

[0048] Specifically, the torque output value obtained by real-time monitoring is determined to determine whether it is greater than the preset torque output. If the torque output value at the current moment is greater than the preset torque output, counting or timing is started to record the continuity of the exceeding state to avoid false triggering of adjustments due to instantaneous torque fluctuations.

[0049] The torque difference at each exceeding-standard moment is calculated, and then the statistical characteristics of the torque difference, such as mean, variance, peak value, and change rate, are calculated.

[0050] The mean is used to characterize the overall trend of the torque difference, determine whether the system is operating within the normal operating range, and achieve a baseline state assessment. If the mean is high, the load is continuously high, and the upper speed limit needs to be lowered to avoid overload. If the mean is low, the load is light, and the upper speed limit can be relaxed.

[0051] The peak value is the maximum extreme value of the torque difference, representing the impact load. It is used to implement overload risk warning, identify the maximum value of the torque difference, and prevent mechanical damage to the equipment due to instantaneous overload. If the preset torque is exceeded, the speed limit is set to a safe value to avoid the peak value. The smaller the peak value, the more flexible the speed range setting.

[0052] The variance is used to indicate the discrete degree of torque fluctuation and reflect the load stability.

[0053] If the variance is large and the load fluctuates violently, the speed range needs to be expanded to adapt to the changes; if the variance is small and the load is stable, the speed range can be narrowed to improve control accuracy.

[0054] The rate of change refers to the amount of change in the torque difference per unit time, and is used to characterize the dynamic change speed of the torque difference.

[0055] If the rate of change is high and the load changes suddenly, a speed buffer needs to be reserved; if the rate of change is low, the speed range can be narrowed to optimize efficiency.

[0056] In a possible embodiment, determining the first operating speed based on the statistical characteristics includes: determining an operating speed range based on the statistical characteristics; obtaining a load fluctuation constraint of the spindle motor and a mixing uniformity constraint of the slurry; and determining the first operating speed in the operating speed range based on the load fluctuation constraint and the mixing uniformity constraint.

[0057] Among them, the statistical characteristics reflect the distribution characteristics of torque deviation and determine the feasible range of speed regulation.

[0058] The upper speed limit is determined based on the mean and peak values. The specific formula is as follows: ,in, is the upper speed limit, is the adjustment coefficient, is the mean, is the peak value, is the reference speed, i.e. the current speed, and a is the correction compensation item.

[0059] Among them, the larger the mean value, the lower the upper speed limit.

[0060] Specifically, the interval width is determined based on the variance and the rate of change.

[0061] Among them, the variance dominates the static fluctuation buffer, which ensures that the interval can cover the speed deviation of normal operation by quantifying the discrete degree.

[0062] Among them, the rate of change dominates the dynamic response buffer, which prevents the speed from reaching the limit under sudden changes in working conditions by compensating for system delays, realizes adaptive adjustment of the speed range, and strikes a balance between stability, accuracy and reliability.

[0063] The specific formula for interval width is as follows: ,in, is the interval width, is the safety factor, which can be 2 for example; is the dynamic compensation coefficient, which can be 1 for example; is the rate of change, is the system response time, such as the control algorithm response delay.

[0064] The operating speed range is determined based on the speed upper limit and the range width. Specifically, the speed lower limit is obtained by subtracting the range width from the speed upper limit, and then the operating speed range is obtained.

[0065] The load fluctuation constraint is used to limit the fluctuation range of the spindle motor load to avoid overload or low efficiency.

[0066] Among them, the mixing uniformity constraint is related to the process requirements and is used to ensure uniform mixing of the slurry.

[0067] Furthermore, when determining the operating speed, the energy consumption efficiency and stirring efficiency of the equipment are taken into consideration so as to avoid motor shutdown due to over-torque while ensuring the stirring effect.

[0068] Among them, the current slurry viscosity stage is evaluated according to statistical characteristics, and the process coefficient is determined according to the current slurry viscosity stage; and the load fluctuation coefficient is determined according to the variance.

[0069] The reference operating speed is determined based on the process coefficient and load fluctuation coefficient, combined with the rated torque. The specific formula is as follows: , in, is the reference operating speed, is the process coefficient, is the load fluctuation coefficient, is the rated torque.

[0070] For example, the process coefficient range is [0.5, 1.0], and the process coefficient can be set to 0.6 to reduce the rotation speed for high viscosity slurry.

[0071] For example, the load fluctuation coefficient ranges from [0.6, 0.9]. When the fluctuation is large, a value of 0.8 can be used as a reduction benchmark.

[0072] If the reference operating speed is within the operating speed range, the reference operating speed is determined as the first operating speed.

[0073] Among them, if the reference operating speed is not in the operating speed range, the objective function is constructed according to the load fluctuation constraint and the mixed uniformity constraint, and the first operating speed is determined through multi-objective optimization to make the energy consumption and fluctuation optimal.

[0074] In this application, the spindle torque is continuously monitored and compared with a preset threshold. When the limit is exceeded, the speed is reduced to prevent the torque from further increasing and causing damage to the equipment.

[0075] At this point, the torque data exceeding the threshold is deeply analyzed to calculate features such as mean, peak, and rate of change. The mean reflects the degree of sustained overload, the peak identifies extreme shocks, and the rate of change captures the severity of torque fluctuations. These features collectively quantify the spindle load state. By combining these features with motor performance parameters and equipment operating conditions, a dynamic optimization algorithm is constructed to calculate the target speed that both meets the current load requirements and ensures equipment safety.

[0076] The dynamic control based on characteristic analysis in this embodiment can adapt to complex and changeable working conditions, actively predict slurry viscosity and overload risks and intervene in advance. Through precise adjustment, it reduces energy loss and mechanical wear, and realizes precise control of the spindle motor and active overload protection.

[0077] At the same time, when determining the operating speed, the energy consumption efficiency and stirring efficiency of the equipment are taken into consideration, and a closed-loop control system that takes into account both performance and reliability is constructed.

[0078] During the stirring process, the rotational speed directly affects the turbulence intensity and shear force distribution of the slurry. Too low a rotational speed will lead to uneven mixing and fail to meet the process requirements. Although too high a rotational speed can improve the stirring efficiency, it will greatly increase the motor load, causing the risk of over-torque shutdown and causing energy waste.

[0079] Therefore, the above parameters were combined with torque data to construct a multi-objective optimization model. Under the constraint of ensuring that the mixing efficiency meets the process standards, the optimization goal was to minimize energy consumption, while also setting a torque threshold boundary to avoid motor overload.

[0080] As can be seen, in the embodiments of this application, through real-time monitoring and data feedback, the operating speed is dynamically adjusted according to material characteristics and load changes, maintaining the motor operation within an efficient and safe range while ensuring the mixing effect. This helps reduce downtime and maintenance costs caused by over-torque, reduces long-term operating expenses through energy consumption optimization, and improves the overall benefits of the equipment throughout its life cycle.

[0081] S230: Determine a mapping relationship between the discharge flow rate of the circulation pump and the operating speed of the spindle motor.

[0082] In the lithium battery industry's pulping process, the circulation pump, as the core power equipment, undertakes the function of slurry transportation and circulation. The circulation pump extracts the slurry through the pipeline system and returns it at a specific flow rate, forming a forced circulation flow field.

[0083] Among them, for the slurry system containing binder, the circulation pump can further disperse the agglomerated binder particles and cooperate with the stirring of the spindle motor to shorten the dissolution time.

[0084] A filter integrated into the circulation line removes impurities such as metal debris and agglomerated particles from the slurry in real time, preventing wear on the spindle motor's stirring paddles and subsequent screen clogging during the coating process. A circulating pump delivers mature slurry to the feed tank, integrating with the spindle motor's timing control to achieve continuous mixing, circulation, and feeding, thereby increasing production capacity.

[0085] Among them, the circulation pump also has adjustable flow characteristics to adapt to different pulping process requirements. The equipment can adopt variable frequency speed regulation and precision flow control system to achieve stepless adjustment, and accurately set parameters through the human-computer interaction interface to ensure that the slurry flow rate, pressure and process requirements are perfectly matched.

[0086] Among them, the timing control of the circulation pump and the spindle motor cooperates to form a closed-loop production system. When the spindle motor starts, the circulation pump runs at a low speed to maintain slurry microcirculation and ensure stirring uniformity; when the stirring program is completed, the circulation pump immediately switches to high-speed mode to quickly transport the evenly mixed slurry to the next process, realizing seamless connection of stirring, circulation and feeding. In one possible embodiment, a mathematical relationship between the spindle motor speed and the circulation pump flow rate is established. When the spindle motor automatically slows down due to increased viscosity, the circulation pump simultaneously reduces the flow rate to maintain a stable slurry linear velocity and avoid a surge in pipeline pressure due to a sudden change in flow rate.

[0087] In one possible embodiment, the mapping relationship refers to the proportional relationship between the operating speed and the discharge flow rate, that is, the flow rate is proportional to the speed. The discharge flow rate of the circulating pump is adjusted by the adjustment of the operating speed of the spindle motor. The specific formula is as follows: , Among them, Q is the discharge flow rate, and n is the operating speed.

[0088] In a possible embodiment, the mapping relationship refers to an exponential relationship between the operating speed and the discharge flow rate, and the specific formula is as follows: , Where q is the coefficient and m is the exponent, and both are not equal to 1.

[0089] S240: Determine a first discharge flow rate of the circulation pump according to the mapping relationship and the first operating speed.

[0090] In a possible embodiment, determining the first discharge flow rate of the circulating pump based on the mapping relationship and the first working speed includes: obtaining the preset working speed of the spindle motor; determining a flow factor based on the first working speed and the preset working speed through the mapping relationship, and the flow factor is used to characterize the influence of the adjustment of the working speed on the discharge flow rate; obtaining the second discharge flow rate at the preset working speed; and determining the first discharge flow rate based on the flow factor and the second discharge flow rate.

[0091] The preset operating speed may be a rated speed, and the second discharge flow rate at the preset operating speed may be a rated flow rate. The flow factor is a ratio of the first operating speed to the preset operating speed.

[0092] In a possible embodiment, the preset operating speed may be manually set, and based on experience, the second discharge flow rate at the preset operating speed is the standard discharge flow rate corresponding to the set operating speed.

[0093] The first discharge flow rate is calculated based on the proportional relationship between the operating rotation speed and the discharge flow rate in combination with the rated flow rate.

[0094] For example, see Figure 3 , Figure 3 This is a flow chart of a discharge flow decision process provided by an embodiment of the present application, such as Figure 3As shown, the first working speed is sent to the circulation pump module in real time through the spindle control module; the circulation pump module receives the data, calculates the flow factor according to the first working speed and the preset working speed, and sends the flow factor to the proportional calculation module, the proportional calculation module calculates the target discharge flow according to the flow factor and the rated flow, and sends it to the decision module; the decision module generates a control strategy according to the target discharge flow, and then performs adjustment according to the control strategy.

[0095] In a possible embodiment, the first discharge flow rate is calculated according to an exponential relationship between the operating rotation speed and the discharge flow rate.

[0096] It can be seen that in this application, during the viscosity peak stage of the lithium battery slurrying process, the rheological properties of the slurry show significant changes, posing a huge challenge to the operation of the equipment.

[0097] At this point, the spindle motor's load torque rises dramatically as it must overcome the slurry's extremely high internal friction and adhesion. Continuing to operate at rated speed would not only trigger the motor's over-torque protection, causing a shutdown, but also potentially accelerate wear of core components like bearings and rotors due to mechanical overload, shortening the equipment's service life.

[0098] To cope with this working condition, the system needs to build a dynamic adaptive flow control mechanism to maintain the stability and continuity of the pulping process by accurately matching the discharge flow rate with the stirring capacity after the motor speed is reduced.

[0099] Specifically, when the torque sensor detects that the torque output value of the spindle motor continues to approach the preset threshold, the system immediately initiates the intelligent speed reduction strategy.

[0100] As the motor slows down, the discharge flow rate is adaptively adjusted simultaneously. Combined with a mapping relationship, the target flow rate is accurately calculated to match the stirring capacity after the motor speed is reduced. This strategy reduces the number of over-torque shutdowns during peak viscosity and lowers the overall equipment failure rate.

[0101] At the same time, the precise matching of discharge flow and stirring capacity keeps the coefficient of variation of slurry mixing stable, significantly improving the stability of slurry quality, providing reliable guarantee for subsequent coating, rolling and other processes, and ultimately achieving efficient and stable operation of the pulping system.

[0102] In one possible embodiment, see Figure 4 , Figure 4 It shows that the first discharge flow rate is determined according to the flow factor and the second discharge flow rate, Figure 4 This is a flow chart of a discharge flow matching calculation provided in an embodiment of the present application, such as Figure 4 As shown, the process includes the following steps: S410: Determine a speed adjustment range according to the first operating speed.

[0103] The speed adjustment range refers to the ratio of the actual working speed to the first working speed.

[0104] S420: Adjust the flow factor according to the speed adjustment range.

[0105] The flow factor is adjusted according to the ratio, and the specific formula is as follows: , in, is the adjusted flow factor, is the unadjusted flow factor, Adjust the speed.

[0106] S430: Determine the first discharge flow rate according to the adjusted flow factor and the second discharge flow rate.

[0107] The product of the adjusted flow factor and the second discharge flow rate is the first discharge flow rate.

[0108] It can be seen that in the embodiment of the present application, the speed adjustment range provides a direct basis for the dynamic correction of the flow factor, so that the flow factor can be adjusted in a targeted manner according to the actual speed fluctuation.

[0109] When the flow factor changes synchronously with the speed adjustment amplitude, its calculation relationship with the second discharge flow rate can accurately reflect the impact of speed fluctuations on the discharge process, and then through the calculation of the adjusted flow factor and the second discharge flow rate, the first discharge flow rate can be adapted to the material output requirements under the current working speed in real time.

[0110] This mechanism can actively compensate for flow deviations when the speed fluctuates, avoiding unstable discharge flow caused by speed changes, thereby ensuring the consistency and accuracy of material output during the production process, reducing production errors caused by flow fluctuations, and improving equipment operation reliability and production efficiency.

[0111] In a possible embodiment, the torque change rate may be calculated according to a time sequence, and when the torque change rate continues to increase or decrease and approaches a preset change rate, a speed reduction instruction or a speed increase instruction is triggered.

[0112] Specifically, dynamic changes in slurry viscosity directly cause spindle motor torque fluctuations, especially during peak viscosity. Sudden torque changes can cause equipment overload or a sharp drop in efficiency. To achieve dynamic balance in equipment operation, a time-series-based torque change rate monitoring and intelligent control mechanism can be established. By capturing torque change trends in real time, proactive intervention can be implemented before risks occur.

[0113] The spindle motor torque data is continuously collected by high-frequency sampling, and the torque change rate is calculated using a sliding time window algorithm.

[0114] Specifically, the torque data is recorded in a time series to obtain a torque set, the rate of change between adjacent sampling points is calculated, and the rate of change values ​​within the window are weighted averaged to smooth data fluctuations and highlight trend characteristics.

[0115] When the torque change rate is monitored to continue to increase, an early warning mechanism is set, the pre-adjustment strategy is activated, the motor speed is fine-tuned and the circulation pump flow is optimized; if the change rate approaches the preset threshold, active control is immediately executed, and the optimal speed adjustment plan is calculated through the neural network model combined with the current operating status.

[0116] Among them, a graded speed reduction strategy can be set, reducing the speed by 10% in the first stage, observing the preset time, and then making a secondary adjustment based on torque feedback to avoid slurry deposition caused by a sudden drop in speed.

[0117] Among them, if the torque change rate shows negative growth, the system will also activate the response mechanism, increase the speed, and adjust the circulation pump flow to ensure that the discharge efficiency and stirring capacity are re-matched.

[0118] Among them, during the entire control process, the threshold setting and control strategy are optimized to improve the response accuracy of the equipment under complex working conditions, effectively reduce the risk of over-torque shutdown, and extend the service life of the equipment.

[0119] S250: performing a matching adjustment operation according to the first working speed and the first discharge flow rate to achieve coordinated control of the spindle motor and the circulation pump to complete the pulping operation.

[0120] After the first operating speed and the first discharge flow rate are obtained, the first operating speed is sent to the spindle motor speed regulating device for speed regulation, thereby reducing the spindle motor speed to the first operating speed.

[0121] At the same time, the first discharge flow is sent to the circulation pump flow regulating device to adjust the discharge flow of the circulation pump so that the circulation discharge speed of the slurry matches the stirring capacity after the spindle motor is decelerated, ensuring the balanced operation of the entire pulping system at the peak viscosity stage.

[0122] It can be seen that in the embodiment of the present application, the speed regulation mechanism is triggered by real-time monitoring of the actual torque value of the spindle motor, which effectively solves the problem of frequent shutdown of the spindle motor at load peak, and the speed regulation mechanism is linked with the discharge flow of the circulation pump. Through the mapping relationship between flow and speed, the circulation pump flow is adaptively adjusted when the spindle speed changes, avoiding sudden changes in the slurry flow state, improving the stability of the slurry stirring quality, ensuring the stable operation of the pulping process, and avoiding the spindle motor from shutting down due to over-torque.

[0123] In a possible embodiment, after performing the matching and adjusting operation according to the first working speed and the first discharge flow rate, the method further includes: detecting that the execution cycle of the matching and adjusting operation ends, obtaining the second torque output of the spindle motor within a second preset time; determining the second working speed of the spindle motor according to the second torque output; determining the third discharge flow rate of the circulating pump according to the mapping relationship and the second working speed; and performing the matching and adjusting operation according to the second working speed and the third discharge flow rate.

[0124] When a speed reduction or speed increase command is triggered, an adjustment time is set to perform periodic adjustment. For example, a timed step adjustment method is used to ensure smooth speed changes and prevent sudden changes.

[0125] Specifically, the current matching and adjustment operation is executed during a first period, during which the spindle motor operates at a first operating speed and the circulating pump circulates at a first discharge flow rate. After the current execution period ends, a second adjustment operation is performed based on the current torque output, matching the operating speed and discharge flow rate.

[0126] Specifically, according to the adjustment cycle, the corresponding torque threshold is set. Combined with the adjusted operating state, the working speed and discharge flow corresponding to the current adjustment cycle are determined according to the same calculation method of the first working speed and the first discharge flow, and then the matching adjustment operation is performed.

[0127] It can be seen that in the embodiment of the present application, a dynamic adaptive closed-loop control system is constructed, and the introduction of the adjustment cycle enables the system to divide different control stages based on time, dynamically determine the working speed and discharge flow rate of the current cycle, so that the two always maintain a matching relationship with the process requirements.

[0128] By adjusting the segmented control of the cycle, the control logic is made closer to the actual operating characteristics of the equipment, ensuring smooth changes in speed and flow and preventing sudden changes. At the same time, the production process can maintain the stability of material output and the accuracy of process execution in different cycles, ultimately achieving a dual improvement in equipment reliability and production efficiency.

[0129] In a possible embodiment, when it is detected that the first torque output is less than a lower threshold, the degree to which multiple first torque outputs are less than the lower threshold is determined, and if the first torque outputs are continuously less than the lower threshold, speed increase is triggered.

[0130] Specifically, second differences between a plurality of first torque outputs and a lower threshold value may be calculated, statistical features of the second differences may be extracted, and the operating speed after the speed increase may be determined based on the statistical features of the second differences.

[0131] Specifically, the working speed range after speed increase is determined according to the statistical characteristics of the second difference; and the working speed after speed increase is determined in the working speed range after speed increase according to the load fluctuation constraint of the spindle motor and the mixing uniformity constraint of the slurry.

[0132] Furthermore, according to the mapping relationship between the working speed and the flow factor, the matching discharge flow is determined in combination with the working speed after speed increase, and then the operation of the pulping process is controlled according to the working speed after speed increase and the matching discharge flow.

[0133] In a possible embodiment, during the speed increase process, sampling is gradually adjusted, and a timed step adjustment method is used to ensure smooth speed changes and prevent sudden changes.

[0134] In a possible embodiment, the difference between the speed-up threshold and the speed-down threshold is set to at least 1 unit, so as to construct a buffer zone to prevent system regulation oscillation.

[0135] Specifically, when equipment operating parameters such as speed and flow rate require adjustment, the threshold for triggering the speed increase (e.g., the preset torque output) is intentionally set lower than the threshold for triggering the speed reduction. This differential design creates a buffer zone, preventing frequent switching between speed increase and speed reduction commands due to minor parameter fluctuations. This effectively improves equipment operational stability, reduces wear on mechanical components caused by frequent adjustments, and ensures the reliability of the control logic, avoiding control confusion caused by overlapping thresholds.

[0136] In one possible embodiment, the method further includes: determining a second difference between the slurry transmission flow rate and a preset transmission flow rate; when it is detected that the second difference is greater than the preset difference, performing abnormal behavior detection on the spindle motor and the circulation pump, and generating a detection report including the cause of the abnormality.

[0137] Among them, through flow difference monitoring, abnormal triggering is achieved, and then component diagnosis is carried out to achieve early identification and positioning of equipment failures.

[0138] The preset difference is the permissible fluctuation range set according to process requirements. When the second difference exceeds this range, the system determines that there is a flow anomaly and triggers the subsequent detection process.

[0139] The spindle motor and circulation pump are key components that influence slurry flow. Spindle motor speed fluctuations, torque anomalies, or power failures can directly lead to insufficient transmission power. Impeller wear, pipe blockages, or pump leaks in the circulation pump can affect slurry delivery efficiency. Operating data from these two components, such as motor current, speed, and pump inlet and outlet pressure differential, is collected and compared with historical normal data or standard parameters to identify abnormalities.

[0140] Based on the data analysis results, the system automatically locates the cause of the abnormality, such as spindle motor bearing wear causing a drop in speed, circulation pump inlet filter blockage causing flow attenuation, etc., and generates a detection report including the fault type, impact level and recommended solutions, providing maintenance personnel with accurate maintenance guidance.

[0141] For example, see Figure 5 , Figure 5 This is a flow chart of an anomaly detection process provided by an embodiment of the present application, such as Figure 5 As shown, if the system process is abnormal, the causes of the abnormality include spindle control abnormality and circulation pump control abnormality. Among them, a lower-level analysis of the spindle control abnormality may be caused by torque detection failure and speed setting mutation; then a lower-level analysis of the torque detection failure and speed setting mutation is performed. The torque detection failure may be caused by sensor drift, and the speed setting mutation may be caused by communication interference.

[0142] Among them, the lower-level analysis of the abnormal control of the circulating pump is carried out, which may be caused by the proportional factor calculation error and the MIN function limit failure; then the lower-level analysis of the proportional factor calculation error and the MIN function limit failure is carried out again, and the proportional factor calculation error may be caused by the zero threshold setting, and the MIN function limit failure may be caused by the speed array out of bounds.

[0143] The real-time calculation of the second difference between the slurry flow rate and the preset value essentially establishes a quantitative abnormality perception benchmark for the system. When the actual flow rate deviates from the preset value by more than a threshold, this deviation is no longer simply viewed as a random fluctuation, but instead serves as a signal to trigger in-depth detection. This enables the system to initiate a response before the flow anomaly develops into a serious fault, avoiding process issues such as uneven slurry distribution caused by persistent flow deviations and ensuring the stability of the production process.

[0144] Secondly, a targeted detection mechanism for the spindle motor and circulating pump solves the problem of quickly locating the root cause of flow anomalies. These two components, the core power source for slurry transmission, often exhibit hidden anomalies, initially manifesting as only slight fluctuations in flow rate. By immediately collecting multi-dimensional data such as motor current, speed, pump pressure, and vibration when flow rate deviations exceed standards, the system can directly correlate flow anomalies with component operating status, avoiding the inefficient blind disassembly and inspection associated with traditional manual inspections and shifting maintenance from post-repair to pre-emptive prevention.

[0145] Furthermore, the inspection report generation mechanism provides structured output of fault information. The report not only locates the faulty component but also tracks the abnormality's development trend based on historical operating data and even provides repair priority recommendations. This integrated information enables maintenance personnel to make data-driven decisions, reducing subjectivity in repair decisions and accumulating a data foundation for predictive maintenance of equipment.

[0146] It can be seen that in the embodiments of the present application, through the threshold control of the flow difference, the fluctuation of process parameters is limited to an acceptable range, thereby improving the consistency of product quality; through the early detection of component abnormalities, emergencies are reduced and production losses are reduced; through the standardized output of test reports, the fault handling cycle is shortened, and data support is provided for the full life cycle management of the equipment, ultimately achieving two-way optimization of production efficiency and maintenance costs.

[0147] In one possible embodiment, the spindle motor adjusts its speed based on the load during operation, slowing down when the torque is high and increasing it when the torque is low. The circulating pump's flow rate is proportionally adjusted based on the spindle's set speed, running at full speed when the speed exceeds a threshold and adjusting proportionally otherwise.

[0148] Among them, first set the speed initialization and mode switching.

[0149] Among them, through speed initialization, the baseline parameters of the spindle motor operating speed are reset to the calculated speed value, ensuring that the motor speed parameters are synchronized with the current operating requirements, avoiding operational abnormalities due to parameter lag, and improving processing accuracy and system response efficiency.

[0150] Specifically, the triggering conditions for speed initialization include setting a speed change or exiting a loop.

[0151] Among them, the set speed change means that when the user or the control system modifies the target speed value of the spindle motor, such as through parameter setting or external command adjustment, the system will automatically reset the automatic speed to the preset variable speed after detecting this change.

[0152] Exiting the cycle means that when the motor exits the cycle operation mode, for example, completing a processing cycle or manually terminating the cycle, the system will trigger a speed reset.

[0153] Exemplarily, the automatic speed parameter is forcibly updated to the second element in the variable speed array. The variable speed array can be a preset speed parameter array, and the first element in the variable speed array represents the default speed value in the variable speed mode, which is used to connect the speed reference after the cycle ends.

[0154] The speed change array may also be a speed parameter array determined in real time according to the torque output, for example, including the first operating speed.

[0155] Mode switching enables seamless integration between automated and manual operations, adapting to varying process requirements. Depending on the motor's current operating state, the speed control channel is automatically or manually switched to match the requirements of different operating modes.

[0156] When the system is in a cyclic operation state, channel 4 is automatically activated and the automatic speed is used, which is controlled by the program or system parameters. When it is switched to manual mode, such as pressing the manual operation button, the system immediately switches to channel 0 and uses the manual speed, which is directly set by the operator through the knob or button.

[0157] Specifically, when the spindle torque continuously exceeds the upper threshold, the speed reduction is triggered periodically, and the speed is reduced by a fixed value each time, and the lowest value is not lower than the set minimum value.

[0158] Specifically, when the torque is lower than the lower threshold, the speed increase is triggered regularly to gradually increase the speed without exceeding the initial speed change.

[0159] Among them, when the actual speed of the spindle decreases, the circulation pump flow rate is automatically reduced in proportion.

[0160] Furthermore, threshold isolation is set, with the speed-up threshold at least 1 unit lower than the speed-down threshold to avoid adjustment oscillation. Gradual adjustment is also implemented, using a timed step adjustment method to ensure smooth speed changes and prevent sudden changes. State sensing is also implemented, strictly monitoring the spindle connection status and only adjusting during normal operation.

[0161] For the same example as above, please refer to Figure 6 , Figure 6 This is a block diagram of the functional units of a control device for a pulping process provided by an embodiment of the present application, such as Figure 6 As shown, the control device 60 for the pulping process includes: an acquisition unit 61, used to acquire multiple first torque outputs of the spindle motor within a first preset time; a first determination unit 62, used to determine the first working speed of the spindle motor according to the multiple first torque outputs; a second determination unit 63, used to determine the mapping relationship between the discharge flow rate of the circulation pump and the working speed of the spindle motor; a third determination unit 64, used to determine the first discharge flow rate of the circulation pump according to the mapping relationship and the first working speed; an adjustment unit 65, used to perform matching and adjustment operations according to the first working speed and the first discharge flow rate, so as to realize the coordinated control of the spindle motor and the circulation pump to complete the pulping operation.

[0162] In one possible embodiment, in determining the first operating speed of the spindle motor based on the multiple first torque outputs, the first determination unit 62 is specifically used to: when it is detected that there is a first torque output greater than a preset torque output, determine the continuity degree of the multiple first torque outputs greater than the preset torque output; when it is detected that the continuity degree is greater than the preset continuity degree, determine the difference between the multiple first torque outputs and the preset torque output to obtain multiple first differences; extract statistical characteristics of the multiple first differences, and the statistical characteristics are used to characterize the fluctuation of the multiple first differences; and determine the first operating speed based on the statistical characteristics.

[0163] In a possible embodiment, in terms of determining the first operating speed based on the statistical characteristics, the first determination unit 62 is specifically further used to: determine the operating speed range based on the statistical characteristics; obtain the load fluctuation constraint of the spindle motor and the mixing uniformity constraint of the slurry; and determine the first operating speed in the operating speed range based on the load fluctuation constraint and the mixing uniformity constraint.

[0164] In one possible embodiment, in terms of determining the first discharge flow rate of the circulating pump based on the mapping relationship and the first working speed, the third determination unit 64 is specifically used to: obtain the preset working speed of the spindle motor; determine the flow factor based on the first working speed and the preset working speed through the mapping relationship, and the flow factor is used to characterize the influence of the adjustment of the working speed on the discharge flow rate; obtain the second discharge flow rate at the preset working speed; determine the first discharge flow rate based on the flow factor and the second discharge flow rate.

[0165] In a possible embodiment, in determining the first discharge flow rate based on the flow factor and the second discharge flow rate, the third determination unit 64 is specifically further used to: determine the speed adjustment amplitude based on the first operating speed; adjust the flow factor based on the speed adjustment amplitude; and determine the first discharge flow rate based on the adjusted flow factor and the second discharge flow rate.

[0166] In a possible embodiment, the control device 60 of the pulping process is further specifically used to: determine a second difference between the slurry transmission flow rate and a preset transmission flow rate; when it is detected that the second difference is greater than the preset difference, perform abnormal behavior detection on the spindle motor and the circulation pump, and generate a detection report including the cause of the abnormality.

[0167] In one possible embodiment, after performing a matching and adjusting operation according to the first working speed and the first discharge flow rate, the control device 60 of the pulping process is specifically further used to: detect the end of the execution cycle of the matching and adjusting operation, and obtain the second torque output of the spindle motor within a second preset time; determine the second working speed of the spindle motor according to the second torque output; determine the third discharge flow rate of the circulation pump according to the mapping relationship and the second working speed; and perform the matching and adjusting operation according to the second working speed and the third discharge flow rate.

[0168] It can be understood that since the method embodiment and the device embodiment are different presentation forms of the same technical concept, the content of the method embodiment part in this application should be synchronously adapted to the device embodiment part and will not be repeated here.

[0169] In the case of integrated units, see Figure 7 , Figure 7 This is a block diagram of the functional units of another control device for a pulping process provided by an embodiment of the present application. Figure 7 As shown, the pulping process control device 60 includes: a processing module 602 and a communication module 601. The processing module 602 is used to control and manage the operations of the pulping process control device 60, for example, executing the steps of the acquisition unit 61, the first determination unit 62, the second determination unit 63, the third determination unit 64, and the adjustment unit 65, and / or other processes for performing the technology described herein. The communication module 601 is used for interaction between the pulping process control device 60 and other devices.

[0170] Among them, such as Figure 7 As shown, the control device 60 for the pulping process may further include a storage module 603 , and the storage module 603 is used to store program codes and data of the control device 60 for the pulping process.

[0171] The processing module 602 may be a processor or controller, such as a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0172] The communication module 601 may be a transceiver, an RF circuit, a communication interface, etc. The storage module 603 may be a memory.

[0173] Among them, all relevant contents of each scenario involved in the above method embodiment can be referred to the functional description of the corresponding functional module, and will not be repeated here. The control device 60 of the pulping process can execute the above Figure 2 The control method of the pulping process is shown.

[0174] See also Figure 8 , Figure 8 This is a schematic diagram of the structure of an electronic device proposed in an embodiment of the present application. Figure 8As shown, the electronic device 800 includes a processor 810, a memory 820, a communication interface 830 and one or more programs 821. The one or more programs 821 are stored in the memory and are configured to be executed by the processor. When the program is executed, it includes part or all of the steps of the control method of any pulping process recorded in the above method embodiment. The processor, memory and communication interface are interconnected and complete communication with each other.

[0175] The memory may be a volatile memory such as a dynamic random access memory (DRAM) or a non-volatile memory such as a mechanical hard disk. The memory is used to store a set of executable program codes, and the processor is used to call the executable program codes stored in the memory to execute some or all steps of any pulping process control method described in the embodiment of the pulping process control method.

[0176] It can be seen that the electronic device 800 described in the embodiment of the present application first obtains multiple first torque outputs of the spindle motor within a first preset time; then determines the first operating speed of the spindle motor based on the multiple first torque outputs; then determines the mapping relationship between the discharge flow rate of the circulation pump and the operating speed of the spindle motor; then determines the first discharge flow rate of the circulation pump based on the mapping relationship and the first operating speed; finally, performs matching and adjustment operations based on the first operating speed and the first discharge flow rate to achieve coordinated control of the spindle motor and the circulation pump to complete the pulping operation.

[0177] This application triggers the speed regulation mechanism by real-time monitoring of the actual torque value of the spindle motor, effectively solving the problem of frequent shutdown of the spindle motor at load peak, and links the speed regulation mechanism with the discharge flow of the circulation pump. Through the mapping relationship between flow and speed, it ensures that when the spindle speed changes, the flow of the circulation pump is adaptively adjusted to avoid sudden changes in the slurry flow state, improve the stability of the slurry stirring quality, and ensure the stable operation of the pulping process.

[0178] An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any method described in the above method embodiments, and the above computer includes an electronic device.

[0179] The present application also provides a computer program product comprising a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a computer to perform some or all of the steps of any of the methods described in the above method embodiments. The computer program product may be a software installation package, and the computer may comprise an electronic device.

[0180] It should be noted that for the aforementioned method implementations, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the implementations described in the specification are all optional implementations, and the actions and modules involved are not necessarily required for this application.

[0181] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0182] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0183] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of this embodiment.

[0184] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or in the form of software program modules.

[0185] If the integrated unit is implemented in the form of a software program module and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a memory and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned memory includes: U disk, read-only memory (ROM), random access memory (RAM), mobile hard disk, magnetic disk, or optical disk, etc., various media that can store program code.

[0186] Those skilled in the art will understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable memory, which may include: a flash drive, a read-only memory, a random access memory, a magnetic disk or an optical disk, etc.

[0187] The above is a detailed introduction to the implementation methods of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above implementation methods is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, based on the ideas of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for controlling a pulping process, characterized in that: include: Acquire multiple first torque outputs of the spindle motor within a first preset time; determining a first operating speed of the spindle motor according to the plurality of first torque outputs; Determine a mapping relationship between the discharge flow rate of the circulation pump and the operating speed of the spindle motor; determining a first discharge flow rate of the circulation pump according to the mapping relationship and the first operating speed; A matching adjustment operation is performed according to the first working speed and the first discharge flow rate to achieve coordinated control of the spindle motor and the circulation pump to complete the pulping operation.

2. The method according to claim 1, characterized in that Determining the first operating speed of the spindle motor according to the plurality of first torque outputs includes: detecting that a first torque output is greater than a preset torque output, and determining a continuous degree to which the plurality of first torque outputs are greater than the preset torque output; detecting that the continuity degree is greater than a preset continuity degree, determining differences between the plurality of first torque outputs and the preset torque output, and obtaining a plurality of first differences; extracting statistical features of the plurality of first differences, where the statistical features are used to characterize fluctuations of the plurality of first differences; The first operating speed is determined according to the statistical characteristics.

3. The method according to claim 2, characterized in that The determining the first operating speed according to the statistical characteristics includes: determining an operating speed range according to the statistical characteristics; Obtaining a load fluctuation constraint of the spindle motor and a slurry mixing uniformity constraint; The first operating speed is determined in the operating speed range according to the load fluctuation constraint and the mixing uniformity constraint.

4. The method according to claim 1, wherein The determining the first discharge flow rate of the circulation pump according to the mapping relationship and the first operating speed includes: Obtaining a preset operating speed of the spindle motor; Determine a flow factor according to the first operating speed and the preset operating speed through the mapping relationship, wherein the flow factor is used to characterize the influence of the adjustment of the operating speed on the discharge flow rate; Obtaining a second discharge flow rate at the preset operating speed; The first discharge flow rate is determined according to the flow factor and the second discharge flow rate.

5. The method according to claim 4, characterized in that The determining the first discharge flow rate according to the flow factor and the second discharge flow rate includes: determining a speed adjustment range according to the first operating speed; adjusting the flow factor according to the speed adjustment range; The first discharge flow rate is determined according to the adjusted flow factor and the second discharge flow rate.

6. The method according to claim 1, characterized in that The method further comprises: determining a second difference between the slurry delivery flow rate and a preset delivery flow rate; If it is detected that the second difference is greater than a preset difference, abnormal behavior detection is performed on the spindle motor and the circulation pump, and a detection report including the cause of the abnormality is generated.

7. The method according to any one of claims 1 to 6, characterized in that After performing the matching adjustment operation according to the first operating speed and the first discharge flow rate, the method further includes: detecting that the execution cycle of the matching adjustment operation ends, and obtaining a second torque output of the spindle motor within a second preset time; determining a second operating speed of the spindle motor according to the second torque output; determining a third discharge flow rate of the circulation pump according to the mapping relationship and the second operating speed; The matching adjustment operation is performed according to the second operating speed and the third discharge flow rate.

8. A control device for a pulping process, characterized in that: include: An acquiring unit, configured to acquire a plurality of first torque outputs of the spindle motor within a first preset time; a first determining unit, configured to determine a first operating speed of the spindle motor according to the plurality of first torque outputs; A second determining unit is used to determine a mapping relationship between the discharge flow rate of the circulation pump and the operating speed of the spindle motor; a third determining unit, configured to determine a first discharge flow rate of the circulation pump according to the mapping relationship and the first operating speed; The regulating unit is used to perform matching regulating operations according to the first working speed and the first discharge flow rate, so as to realize the coordinated control of the spindle motor and the circulation pump to complete the pulping operation.

9. An electronic device, characterized in that: The device comprises: A memory, a processor, and an executable program code stored in the memory and capable of running on the processor, wherein the processor executes the steps of the method for controlling a pulping process according to any one of claims 1 to 7 when executing the executable program code.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores executable program code, which includes execution instructions for executing the steps of the method for controlling a pulping process according to any one of claims 1 to 7.

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