CN117618949B - Electrolyte drying control method and related device for waste lithium batteries - Google Patents
Electrolyte drying control method and related device for waste lithium batteries Download PDFInfo
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- 238000001035 drying Methods 0.000 title claims abstract description 249
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 129
- 239000003792 electrolyte Substances 0.000 title claims abstract description 129
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 129
- 239000002699 waste material Substances 0.000 title claims abstract description 123
- 238000000034 method Methods 0.000 title claims abstract description 67
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 129
- 238000010438 heat treatment Methods 0.000 claims abstract description 70
- 238000012544 monitoring process Methods 0.000 claims abstract description 63
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- 230000015654 memory Effects 0.000 claims description 30
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- 238000004458 analytical method Methods 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 16
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- 230000005291 magnetic effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
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- 238000003491 array Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
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- Y02W30/84—Recycling of batteries or fuel cells
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Abstract
The invention discloses an electrolyte drying control method and a related device of waste lithium batteries, and relates to the technical field of lithium battery disassembly, wherein the method comprises the following steps: inputting a deviation value between the internal temperature of the drying chamber and a preset target temperature into a PID control system for operation so as to adjust the air inlet temperature; detecting real-time temperature information and size information of a waste lithium battery decomposition component, and acquiring predicted heating time by combining the air inlet temperature; adjusting the conveying rate of the drying chamber based on the predicted heating time and the length information of the drying chamber; conveying the decomposition component to a drying chamber, and drying the electrolyte according to the conveying rate, the expected heating time and the air inlet temperature; in the electrolyte drying process, monitoring data is generated based on a plurality of environmental monitoring sensors to adjust the operating parameters of the drying chamber in real time. The invention can treat the electrolyte completely, avoid the residual electrolyte from adhering to the decomposition component and avoid the damage to the environment caused by incomplete electrolyte treatment.
Description
Technical Field
The invention mainly relates to the technical field of lithium battery disassembly, in particular to an electrolyte drying control method and a related device of waste lithium batteries.
Background
The electrolyte of the waste lithium battery refers to the liquid in the battery, which contains heavy metal particles, high pH value, toxicity and the like, and if the electrolyte of the waste lithium battery is directly discharged into the environment, serious pollution and harm are caused, so that in the disassembly of the lithium battery, the electrolyte needs to be effectively treated, the current treatment of the electrolyte of the waste lithium battery is usually dry treatment, the drying treatment of the electrolyte mainly depends on the dry air inlet temperature and heating time, the more proper control of the air inlet temperature and the heating time can treat the electrolyte with higher efficiency and lower cost, but the more difficult control of the air inlet temperature is caused due to the influence of the properties of the electrolyte and the inside of the environment, the more difficult control of the air inlet temperature is caused, the more difficult control of the heating time is caused, the input cost is increased due to the over high air inlet temperature and heating time, the incomplete treatment of the electrolyte is still caused, the residual electrolyte is attached to the decomposition components of the waste lithium battery, the subsequent recovery treatment is not influenced, and the treatment of the electrolyte cannot be completely harmful to the environment.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an electrolyte drying control method and a related device for waste lithium batteries, which not only can completely treat the electrolyte and prevent residual electrolyte from adhering to decomposition components, but also can prevent the incomplete treatment of the electrolyte from damaging the environment.
In order to solve the technical problems, the invention provides a method for controlling the drying of electrolyte of a waste lithium battery, which comprises the following steps:
constructing a PID control system, calculating a deviation value of the internal temperature of the drying chamber and a preset target temperature, inputting the deviation value into the PID control system for operation, and adjusting the air inlet temperature of the drying chamber based on an operation result to obtain an adjusted air inlet temperature;
detecting real-time temperature information and size information of a waste lithium battery decomposition component, and acquiring predicted heating time based on the real-time temperature information and the size information and the regulated inlet air temperature;
adjusting a transport rate within the drying chamber based on the predicted heating time in combination with the length information of the drying chamber;
acquiring real-time position information of the waste lithium battery decomposition component, transmitting the waste lithium battery decomposition component to a drying chamber based on the real-time position information, and performing electrolyte drying treatment on the waste lithium battery decomposition component by the drying chamber based on the conveying rate, the predicted heating time and the adjusted air inlet temperature;
In the process of carrying out electrolyte drying treatment, carrying out data acquisition and processing based on a plurality of environment monitoring sensors arranged in the drying chamber, obtaining corresponding monitoring data, and adjusting working parameters of the drying chamber in real time based on the corresponding monitoring data.
Optionally, the building a PID control system includes:
establishing an object model of a waste lithium battery decomposition component, and calculating the relative order of the object model;
constructing an internal model controller by utilizing a low-pass filter function based on the relative order;
calculating a transfer function based on a preset proportional coefficient, a preset integral coefficient and a preset differential coefficient, and generating a conventional PID controller based on the transfer function;
parameter setting is carried out on the conventional PID controller, and a PID controller after parameter setting is obtained;
and carrying out fusion processing on the internal model controller and the PID controller after parameter setting to obtain a PID control system.
Optionally, the performing parameter tuning on the conventional PID controller to obtain a PID controller after parameter tuning includes:
performing equivalent processing based on the object model to obtain an equivalent model, and performing decomposition calculation processing on the equivalent model to obtain a first derivative and a second derivative;
Generating a first-order inertial transfer function based on the first-order derivative and the second-order derivative in combination with a preset filter constant;
and decomposing the first-order inertia transfer function to obtain target parameters, and carrying out parameter setting on the conventional PID controller based on the target parameters to obtain the PID controller after parameter setting.
Optionally, the adjusting the air inlet temperature of the drying chamber based on the operation result to obtain the adjusted air inlet temperature includes:
performing coefficient setting processing based on the operation result to obtain a related control coefficient;
and adjusting the air inlet temperature of the drying chamber based on the related control coefficient to obtain the adjusted air inlet temperature.
Optionally, the obtaining the predicted heating time based on the real-time temperature information and the size information in combination with the adjusted air inlet temperature includes:
acquiring theoretical conductivity of the waste lithium battery decomposition component, and acquiring a conductivity change rate by utilizing the theoretical conductivity based on the real-time temperature information and the size information;
and acquiring a corresponding detection value based on the conductivity change rate and the adjusted air inlet temperature, and inquiring corresponding expected heating time in a preset database based on the corresponding detection value.
Optionally, the drying chamber performs an electrolyte drying process on the waste lithium battery decomposition component based on the conveying rate, the predicted heating time and the adjusted air inlet temperature, and the method includes:
generating a drying instruction based on the conveying speed, the expected heating time and the adjusted air inlet temperature, and regulating and controlling the working environment parameters in the drying chamber based on the drying instruction;
and (3) performing electrolyte drying treatment on the waste lithium battery decomposition component through a drying chamber regulated and controlled by the working environment parameters.
Optionally, the data acquisition process is performed based on a plurality of environmental monitoring sensors disposed in the drying chamber, corresponding monitoring data is obtained, and working parameters of the drying chamber are adjusted in real time based on the corresponding monitoring data, including:
determining the first time of the waste lithium battery decomposition component when the waste lithium battery decomposition component enters the drying chamber to carry out electrolyte drying treatment based on image acquisition equipment arranged in the drying chamber;
when the waste lithium battery decomposition component is determined to enter a drying chamber, carrying out data acquisition processing according to a preset acquisition interval frequency based on a plurality of environment monitoring sensors arranged in the drying chamber to obtain corresponding monitoring data;
Analyzing and processing based on the corresponding monitoring data to obtain an analysis result;
and controlling corresponding equipment arranged in the drying chamber to adjust the working parameters of the drying chamber in real time based on the analysis result.
In addition, the invention also provides an electrolyte drying control device of the waste lithium battery, which comprises:
the air inlet temperature adjusting module is as follows: the method comprises the steps of constructing a PID control system, calculating a deviation value of the internal temperature of a drying chamber and a preset target temperature, inputting the deviation value into the PID control system for operation, and adjusting the air inlet temperature of the drying chamber based on an operation result to obtain an adjusted air inlet temperature;
the predicted heating time acquisition module: the method comprises the steps of detecting real-time temperature information and size information of a waste lithium battery decomposition component, and acquiring predicted heating time based on the real-time temperature information and the size information combined with the adjusted air inlet temperature;
a conveying rate adjusting module: for adjusting a transport rate within the drying chamber based on the predicted heating time in combination with the length information of the drying chamber;
and an electrolyte drying module: the method comprises the steps of acquiring real-time position information of a waste lithium battery decomposition component, transmitting the waste lithium battery decomposition component to a drying chamber based on the real-time position information, and drying electrolyte of the waste lithium battery decomposition component by the drying chamber based on the conveying rate, the expected heating time and the adjusted air inlet temperature;
Monitoring and working parameter adjusting module: the system is used for carrying out data acquisition and processing based on a plurality of environment monitoring sensors arranged in the drying chamber in the process of carrying out electrolyte drying treatment, obtaining corresponding monitoring data and adjusting working parameters of the drying chamber in real time based on the corresponding monitoring data.
In addition, the invention also provides electronic equipment, which comprises a processor and a memory, wherein the memory is used for storing instructions, and the processor is used for calling the instructions in the memory, so that the electronic equipment executes the electrolyte drying control method of the waste lithium battery.
In addition, the invention also provides a computer readable storage medium which stores computer instructions, and when the computer instructions run on electronic equipment, the electronic equipment is enabled to execute the electrolyte drying control method of the waste lithium battery.
In the embodiment of the invention, the air inlet temperature of the drying chamber is regulated by adopting the PID control system formed by fusing the internal mold controller and the PID controller after parameter setting, the air inlet temperature can be better controlled, the control precision of the temperature of the drying chamber is improved by more proper air inlet temperature, the change of the size and the real-time temperature of the decomposition component of the waste lithium battery to the electrolyte conductivity is comprehensively considered, the concentration of the electrolyte and the electrolyte volume can be reflected through the conductivity change rate, the corresponding predicted heating time can be obtained by combining the obtained conductivity change rate with the regulated air inlet temperature, the more accurate predicted heating time can be obtained, the process of the drying treatment of the electrolyte can be monitored in real time, the electrolyte can be completely treated, the residual electrolyte is prevented from being attached to the decomposition component, and the harm to the environment caused by incomplete electrolyte treatment is avoided.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of an electrolyte drying control method of a waste lithium battery in an embodiment of the invention;
fig. 2 is a schematic structural diagram of an electrolyte drying control device for waste lithium batteries in an embodiment of the invention;
fig. 3 is a schematic structural composition diagram of an electronic device in an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, fig. 1 is a flow chart of an electrolyte drying control method of a waste lithium battery according to an embodiment of the invention.
As shown in fig. 1, a method for controlling drying of an electrolyte of a waste lithium battery, the method comprising:
s11: constructing a PID control system, calculating a deviation value of the internal temperature of the drying chamber and a preset target temperature, inputting the deviation value into the PID control system for operation, and adjusting the air inlet temperature of the drying chamber based on an operation result to obtain an adjusted air inlet temperature;
in the implementation process of the invention, the construction of the PID control system comprises the following steps: establishing an object model of a waste lithium battery decomposition component, and calculating the relative order of the object model; constructing an internal model controller by utilizing a low-pass filter function based on the relative order; calculating a transfer function based on a preset proportional coefficient, a preset integral coefficient and a preset differential coefficient, and generating a conventional PID controller based on the transfer function; parameter setting is carried out on the conventional PID controller, and a PID controller after parameter setting is obtained; and carrying out fusion processing on the internal model controller and the PID controller after parameter setting to obtain a PID control system.
Further, the performing parameter tuning on the conventional PID controller to obtain a PID controller after parameter tuning includes: performing equivalent processing based on the object model to obtain an equivalent model, and performing decomposition calculation processing on the equivalent model to obtain a first derivative and a second derivative; generating a first-order inertial transfer function based on the first-order derivative and the second-order derivative in combination with a preset filter constant; and decomposing the first-order inertia transfer function to obtain target parameters, and carrying out parameter setting on the conventional PID controller based on the target parameters to obtain the PID controller after parameter setting.
Further, the adjusting the air inlet temperature of the drying chamber based on the operation result to obtain the adjusted air inlet temperature includes: performing coefficient setting processing based on the operation result to obtain a related control coefficient; and adjusting the air inlet temperature of the drying chamber based on the related control coefficient to obtain the adjusted air inlet temperature.
Specifically, an object model of a waste lithium battery decomposition component is established, the object model is an abstraction of a waste lithium battery decomposition component entity, the decomposition component is used as a controlled object, a preset level abstraction is made through the controlled object and a corresponding function, a corresponding object model is further formed, the relative order of the object model is calculated, the object model is divided into more simplified units through the preset level of the object model, each unit is provided with a group of corresponding basis functions, a solution vector is calculated according to the basis functions, and the relative order of the object model can be obtained through the geometric combination interpolation of the solution vector and the basis functions in all the units; the method comprises the steps that an internal model controller is built by utilizing a low-pass filter function based on the relative order, stability and robustness of the internal model controller are guaranteed through the low-pass filter function, parameters of the internal model controller can be changed into adjustable parameters of the internal model controller by adding the low-pass filter function, and the internal model controller can connect a controlled object in parallel to a corresponding loop, so that an output result is more approximate to an ideal output value; the transfer function is calculated based on the preset proportional coefficient, the preset integral coefficient and the preset differential coefficient, and can be obtained from a database by the conventional proportional-integral-differential (Proportion Integration Differentiation, PID) controller, wherein the calculation expression of the transfer function is as follows:
,
Wherein,is a preset proportional coefficient>For the preset integral coefficient, +.>S is a complex variable of Laplace transformation, and a conventional PID controller is generated by utilizing a PID interface function based on the transfer function; performing equivalent processing based on the object model, obtaining low-order equivalent system parameters of the object model by fitting the object model and utilizing a frequency domain analysis method, highlighting characteristics in a main frequency band, performing model fitting through the low-order equivalent system parameters to obtain an equivalent model, performing decomposition calculation processing on the equivalent model, dividing a preset hierarchy of the equivalent model into more simplified units, each unit is provided with a group of corresponding basis functions, calculating a solution vector according to the basis functions, calculating two order derivatives when complex variables are zero according to the solution vector, and obtaining a first order derivative and a second order derivative; generating a first-order inertial transfer function based on the first-order derivative and the second-order derivative and combining a preset filter constant, calculating an external disturbance parameter through the preset filter function, and obtaining a target complex variable according to the first-order derivative and the second-order derivative, wherein the expression of the first-order inertial transfer function is as follows:
，
Wherein; s is a target complex variable, D is an external disturbance parameter, G is a first-order inertial transfer function, the first-order inertial transfer function is decomposed, an integral is calculated on the basis of a parameter resolution decomposition theorem for the first-order inertial transfer function, the first-order inertial transfer function is converted into two simple integral values, so that a target parameter is obtained, parameter setting is carried out on the conventional PID controller on the basis of the target parameter, namely, parameters of a control unit, such as a proportional coefficient and an integral coefficient of the controller, are changed through the target parameter, so that the obtained controller can output a result more accurately, and the PID controller with the parameter set is obtained; the internal model controller and the PID controller after parameter setting are subjected to fusion treatment, namely control parameters between the internal model controller and the PID controller are fused, and a PID control system is obtained; detecting the internal temperature of the drying chamber, calculating the deviation value of the internal temperature of the drying chamber and the preset target temperature, inputting the deviation value into a PID control system for operation, and performing coefficient setting processing based on the operation result, namely solving the nonlinear problem of the control coefficient to obtain a related control coefficient; based on the relevant control coefficient, the air inlet temperature of the drying chamber is adjusted, the temperature deviation is adjusted through the relevant control coefficient, the temperature adjustment is more accurate, the adjusted air inlet temperature is obtained, the air inlet temperature of the drying chamber is adjusted by adopting a PID control system formed by fusing an internal mold controller and a PID controller after parameter adjustment, the complexity of air inlet temperature adjustment can be better adapted, the air inlet temperature can be better controlled, the fluctuation of temperature control is reduced, and the air inlet temperature control precision of the drying chamber is improved with more proper air inlet temperature.
S12: detecting real-time temperature information and size information of a waste lithium battery decomposition component, and acquiring predicted heating time based on the real-time temperature information and the size information and the regulated inlet air temperature;
in the implementation process of the invention, the method for acquiring the predicted heating time based on the real-time temperature information and the size information and the adjusted air inlet temperature comprises the following steps: acquiring theoretical conductivity of the waste lithium battery decomposition component, and acquiring a conductivity change rate by utilizing the theoretical conductivity based on the real-time temperature information and the size information; and acquiring a corresponding detection value based on the conductivity change rate and the adjusted air inlet temperature, and inquiring corresponding expected heating time in a preset database based on the corresponding detection value.
Specifically, the theoretical conductivity of the waste lithium battery decomposition component can be inquired through the specification parameter table, the electrolyte is consumed to different degrees due to the use of the lithium battery, so that the conductivity of the waste lithium battery decomposition component is required to be re-acquired, real-time temperature information of the waste lithium battery decomposition component is acquired through the temperature sensing equipment, the size information of the waste lithium battery decomposition component is acquired through the measuring equipment, the conductivity of the decomposition component is influenced by the temperature increase of the waste lithium battery due to the fact that the decomposition component possibly undergoes hot cutting and electric quantity heat release consumption in the prior disassembly, the conductivity of the decomposition component is increased due to the temperature increase, the electrolyte is adhered to the surface of the decomposition component, the size of the decomposition component is changed due to the disassembly or consumption, the size of the decomposition component is required to be re-measured to measure the electrolyte adhered to the surface of the decomposition component, the actual conductivity is calculated through the detected temperature information and the size information by utilizing a preset calculation formula, and the actual conductivity is subtracted from the theoretical conductivity, and the conductivity change rate is obtained; the method is characterized in that the conductivity change rate can more accurately reflect the concentration of electrolyte and the electrolyte quantity of the decomposition component, the product operation can be carried out by combining the conductivity change rate with the regulated air inlet temperature, the result is used as a detection value, the corresponding expected heating time is queried in a preset database according to the corresponding detection value, the corresponding relation between the detection value obtained through a large number of experiments and the expected heating time is stored in the preset database, the corresponding expected heating time can be rapidly found through the corresponding detection value, the influence of the size and the real-time temperature of the decomposition component of the waste lithium battery on the conductivity change of the electrolyte is comprehensively considered, the concentration of the electrolyte and the electrolyte quantity can be reflected through the conductivity change rate, the corresponding expected heating time is obtained by combining the obtained conductivity change rate with the regulated air inlet temperature, and the more accurate expected heating time can be obtained.
S13: adjusting a transport rate within the drying chamber based on the predicted heating time in combination with the length information of the drying chamber;
in the specific implementation process of the invention, the conveying speed of the conveying belt in the drying chamber is regulated based on the predicted heating time and the length information of the drying chamber, the conveying efficiency is regulated to a proper range value, the phenomenon that the electrolyte of the waste lithium battery decomposition component is insufficiently dried due to too fast conveying is avoided, residual electrolyte is still attached to the decomposition component, meanwhile, the problem that the whole working efficiency is influenced due to too slow conveying is avoided, and the problem that more equipment working cost is input due to too slow conveying is avoided, so that the final benefit is influenced.
S14: acquiring real-time position information of the waste lithium battery decomposition component, transmitting the waste lithium battery decomposition component to a drying chamber based on the real-time position information, and performing electrolyte drying treatment on the waste lithium battery decomposition component by the drying chamber based on the conveying rate, the predicted heating time and the adjusted air inlet temperature;
in the implementation process of the invention, the drying chamber carries out electrolyte drying treatment on the waste lithium battery decomposition component based on the conveying rate, the expected heating time and the adjusted air inlet temperature, and the method comprises the following steps: generating a drying instruction based on the conveying speed, the expected heating time and the adjusted air inlet temperature, and regulating and controlling the working environment parameters in the drying chamber based on the drying instruction; and (3) performing electrolyte drying treatment on the waste lithium battery decomposition component through a drying chamber regulated and controlled by the working environment parameters.
Specifically, a drying instruction is generated based on the conveying speed, the expected heating time and the adjusted air inlet temperature, the drying instruction is transmitted to a drying chamber, the drying chamber adjusts internal working environment parameters according to the drying instruction, real-time position information of the waste lithium battery decomposition component is obtained through positioning equipment, the waste lithium battery decomposition component is transmitted to the drying chamber through a conveying channel according to the real-time position information, after the working environment parameters are adjusted by the drying chamber, electrolyte drying treatment is started on the waste lithium battery decomposition component, serious pollution and harm caused by direct discharge of electrolyte into the environment can be avoided, and the generation of oxide impurities and toxic gases can be greatly restrained by adopting a drying mode for electrolyte treatment.
S15: in the process of carrying out electrolyte drying treatment, carrying out data acquisition and processing based on a plurality of environment monitoring sensors arranged in the drying chamber, obtaining corresponding monitoring data, and adjusting working parameters of the drying chamber in real time based on the corresponding monitoring data.
In the specific implementation process of the invention, the data acquisition processing is performed based on a plurality of environmental monitoring sensors arranged in the drying chamber to obtain corresponding monitoring data, and the working parameters of the drying chamber are adjusted in real time based on the corresponding monitoring data, and the method comprises the following steps: determining the first time of the waste lithium battery decomposition component when the waste lithium battery decomposition component enters the drying chamber to carry out electrolyte drying treatment based on image acquisition equipment arranged in the drying chamber; when the waste lithium battery decomposition component is determined to enter a drying chamber, carrying out data acquisition processing according to a preset acquisition interval frequency based on a plurality of environment monitoring sensors arranged in the drying chamber to obtain corresponding monitoring data; analyzing and processing based on the corresponding monitoring data to obtain an analysis result; and controlling corresponding equipment arranged in the drying chamber to adjust the working parameters of the drying chamber in real time based on the analysis result.
Specifically, a camera device is arranged in the drying chamber, when the camera device collects images, the collecting time is marked on the images, when the waste lithium battery decomposition component is transported into the drying chamber, the camera device is automatically triggered to collect the images of the waste lithium battery decomposition component entering the drying chamber, and the marked collecting time is used as the first time when the waste lithium battery decomposition component enters the drying chamber to carry out electrolyte drying treatment; when the waste lithium battery decomposition component is determined to enter a drying chamber, a plurality of environment monitoring sensors distributed in the drying chamber are actively triggered to perform data acquisition processing according to a preset acquisition interval frequency to obtain corresponding monitoring data, the corresponding monitoring data comprise environment temperature data, corresponding equipment number information and the like, the corresponding monitoring data are uploaded to a monitoring system, analysis processing is performed based on the corresponding monitoring data, namely, the difference between the environment temperature data and target temperature data is compared with a preset difference, and even if the air inlet temperature and the heating time are regulated, the temperature in the drying chamber has a small deviation, and the preset difference is within an allowable deviation range to obtain an analysis result; if the difference is larger than the preset difference, an abnormal early warning is sent out, a corresponding drying chamber is found according to corresponding equipment number information, an analysis result controls corresponding equipment arranged in the drying chamber to adjust working parameters of the drying chamber in real time, such as proper air inlet temperature and heating time or proper conveying speed reduction, a plurality of environment monitoring sensors are distributed in the drying chamber, environment data in the drying chamber are collected according to preset collection interval frequency and uploaded to a monitoring system, the environment data in the drying chamber are monitored, the environment stability of the waste lithium battery decomposition component in the drying chamber is guaranteed, when the abnormality is found, the early warning can be timely carried out, the working parameters of the drying chamber are timely regulated and controlled, the full drying of the electrolyte of the waste lithium battery decomposition component is further guaranteed, and the drying effect is more ideal.
In the embodiment of the invention, the air inlet temperature of the drying chamber is regulated by adopting the PID control system formed by fusing the internal mold controller and the PID controller after parameter setting, the air inlet temperature can be better controlled, the control precision of the temperature of the drying chamber is improved by more proper air inlet temperature, the change of the size and the real-time temperature of the decomposition component of the waste lithium battery to the electrolyte conductivity is comprehensively considered, the concentration of the electrolyte and the electrolyte volume can be reflected through the conductivity change rate, the corresponding predicted heating time can be obtained by combining the obtained conductivity change rate with the regulated air inlet temperature, the more accurate predicted heating time can be obtained, the process of the drying treatment of the electrolyte can be monitored in real time, the electrolyte can be completely treated, the residual electrolyte is prevented from being attached to the decomposition component, and the harm to the environment caused by incomplete electrolyte treatment is avoided.
Example two
Referring to fig. 2, fig. 2 is a schematic structural diagram of an electrolyte drying control device for waste lithium batteries according to an embodiment of the invention.
As shown in fig. 2, an electrolyte drying control device for waste lithium batteries, the device comprising:
the air inlet temperature adjusting module 21: the method comprises the steps of constructing a PID control system, calculating a deviation value of the internal temperature of a drying chamber and a preset target temperature, inputting the deviation value into the PID control system for operation, and adjusting the air inlet temperature of the drying chamber based on an operation result to obtain an adjusted air inlet temperature;
In the implementation process of the invention, the construction of the PID control system comprises the following steps: establishing an object model of a waste lithium battery decomposition component, and calculating the relative order of the object model; constructing an internal model controller by utilizing a low-pass filter function based on the relative order; calculating a transfer function based on a preset proportional coefficient, a preset integral coefficient and a preset differential coefficient, and generating a conventional PID controller based on the transfer function; parameter setting is carried out on the conventional PID controller, and a PID controller after parameter setting is obtained; and carrying out fusion processing on the internal model controller and the PID controller after parameter setting to obtain a PID control system.
Further, the performing parameter tuning on the conventional PID controller to obtain a PID controller after parameter tuning includes: performing equivalent processing based on the object model to obtain an equivalent model, and performing decomposition calculation processing on the equivalent model to obtain a first derivative and a second derivative; generating a first-order inertial transfer function based on the first-order derivative and the second-order derivative in combination with a preset filter constant; and decomposing the first-order inertia transfer function to obtain target parameters, and carrying out parameter setting on the conventional PID controller based on the target parameters to obtain the PID controller after parameter setting.
Further, the adjusting the air inlet temperature of the drying chamber based on the operation result to obtain the adjusted air inlet temperature includes: performing coefficient setting processing based on the operation result to obtain a related control coefficient; and adjusting the air inlet temperature of the drying chamber based on the related control coefficient to obtain the adjusted air inlet temperature.
Specifically, an object model of a waste lithium battery decomposition component is established, the object model is an abstraction of a waste lithium battery decomposition component entity, the decomposition component is used as a controlled object, a preset level abstraction is made through the controlled object and a corresponding function, a corresponding object model is further formed, the relative order of the object model is calculated, the object model is divided into more simplified units through the preset level of the object model, each unit is provided with a group of corresponding basis functions, a solution vector is calculated according to the basis functions, and the relative order of the object model can be obtained through the geometric combination interpolation of the solution vector and the basis functions in all the units; the method comprises the steps that an internal model controller is built by utilizing a low-pass filter function based on the relative order, stability and robustness of the internal model controller are guaranteed through the low-pass filter function, parameters of the internal model controller can be changed into adjustable parameters of the internal model controller by adding the low-pass filter function, and the internal model controller can connect a controlled object in parallel to a corresponding loop, so that an output result is more approximate to an ideal output value; the transfer function is calculated based on the preset proportional coefficient, the preset integral coefficient and the preset differential coefficient, and can be obtained from a database by the conventional proportional-integral-differential (Proportion Integration Differentiation, PID) controller, wherein the calculation expression of the transfer function is as follows:
,
Wherein,is a preset proportional coefficient>For the preset integral coefficient, +.>S is a complex variable of Laplace transformation, and a conventional PID controller is generated by utilizing a PID interface function based on the transfer function; performing equivalent processing based on the object model, obtaining low-order equivalent system parameters of the object model by fitting the object model and utilizing a frequency domain analysis method, highlighting characteristics in a main frequency band, performing model fitting through the low-order equivalent system parameters to obtain an equivalent model, performing decomposition calculation processing on the equivalent model, dividing a preset hierarchy of the equivalent model into more simplified units, each unit is provided with a group of corresponding basis functions, calculating a solution vector according to the basis functions, calculating two order derivatives when complex variables are zero according to the solution vector, and obtaining a first order derivative and a second order derivative; generating a first-order inertial transfer function based on the first-order derivative and the second-order derivative and combining a preset filter constant, calculating an external disturbance parameter through the preset filter function, and obtaining a target complex variable according to the first-order derivative and the second-order derivative, wherein the expression of the first-order inertial transfer function is as follows:
，
Wherein; s is a target complex variable, D is an external disturbance parameter, G is a first-order inertial transfer function, the first-order inertial transfer function is decomposed, an integral is calculated on the basis of a parameter resolution decomposition theorem for the first-order inertial transfer function, the first-order inertial transfer function is converted into two simple integral values, so that a target parameter is obtained, parameter setting is carried out on the conventional PID controller on the basis of the target parameter, namely, parameters of a control unit, such as a proportional coefficient and an integral coefficient of the controller, are changed through the target parameter, so that the obtained controller can output a result more accurately, and the PID controller with the parameter set is obtained; the internal model controller and the PID controller after parameter setting are subjected to fusion treatment, namely control parameters between the internal model controller and the PID controller are fused, and a PID control system is obtained; detecting the internal temperature of the drying chamber, calculating the deviation value of the internal temperature of the drying chamber and the preset target temperature, inputting the deviation value into a PID control system for operation, and performing coefficient setting processing based on the operation result, namely solving the nonlinear problem of the control coefficient to obtain a related control coefficient; based on the relevant control coefficient, the air inlet temperature of the drying chamber is adjusted, the temperature deviation is adjusted through the relevant control coefficient, the temperature adjustment is more accurate, the adjusted air inlet temperature is obtained, the air inlet temperature of the drying chamber is adjusted by adopting a PID control system formed by fusing an internal mold controller and a PID controller after parameter adjustment, the complexity of air inlet temperature adjustment can be better adapted, the air inlet temperature can be better controlled, the fluctuation of temperature control is reduced, and the air inlet temperature control precision of the drying chamber is improved with more proper air inlet temperature.
The predicted heating time acquisition module 22: the method comprises the steps of detecting real-time temperature information and size information of a waste lithium battery decomposition component, and acquiring predicted heating time based on the real-time temperature information and the size information combined with the adjusted air inlet temperature;
in the implementation process of the invention, the method for acquiring the predicted heating time based on the real-time temperature information and the size information and the adjusted air inlet temperature comprises the following steps: acquiring theoretical conductivity of the waste lithium battery decomposition component, and acquiring a conductivity change rate by utilizing the theoretical conductivity based on the real-time temperature information and the size information; and acquiring a corresponding detection value based on the conductivity change rate and the adjusted air inlet temperature, and inquiring corresponding expected heating time in a preset database based on the corresponding detection value.
Specifically, the theoretical conductivity of the waste lithium battery decomposition component can be inquired through the specification parameter table, the electrolyte is consumed to different degrees due to the use of the lithium battery, so that the conductivity of the waste lithium battery decomposition component is required to be re-acquired, real-time temperature information of the waste lithium battery decomposition component is acquired through the temperature sensing equipment, the size information of the waste lithium battery decomposition component is acquired through the measuring equipment, the conductivity of the decomposition component is influenced by the temperature increase of the waste lithium battery due to the fact that the decomposition component possibly undergoes hot cutting and electric quantity heat release consumption in the prior disassembly, the conductivity of the decomposition component is increased due to the temperature increase, the electrolyte is adhered to the surface of the decomposition component, the size of the decomposition component is changed due to the disassembly or consumption, the size of the decomposition component is required to be re-measured to measure the electrolyte adhered to the surface of the decomposition component, the actual conductivity is calculated through the detected temperature information and the size information by utilizing a preset calculation formula, and the actual conductivity is subtracted from the theoretical conductivity, and the conductivity change rate is obtained; the method is characterized in that the conductivity change rate can more accurately reflect the concentration of electrolyte and the electrolyte quantity of the decomposition component, the product operation can be carried out by combining the conductivity change rate with the regulated air inlet temperature, the result is used as a detection value, the corresponding expected heating time is queried in a preset database according to the corresponding detection value, the corresponding relation between the detection value obtained through a large number of experiments and the expected heating time is stored in the preset database, the corresponding expected heating time can be rapidly found through the corresponding detection value, the influence of the size and the real-time temperature of the decomposition component of the waste lithium battery on the conductivity change of the electrolyte is comprehensively considered, the concentration of the electrolyte and the electrolyte quantity can be reflected through the conductivity change rate, the corresponding expected heating time is obtained by combining the obtained conductivity change rate with the regulated air inlet temperature, and the more accurate expected heating time can be obtained.
The transmission power adjustment module 23: for adjusting a transport rate within the drying chamber based on the predicted heating time in combination with the length information of the drying chamber;
in the specific implementation process of the invention, the conveying speed of the conveying belt in the drying chamber is regulated based on the predicted heating time and the length information of the drying chamber, the conveying efficiency is regulated to a proper range value, the phenomenon that the electrolyte of the waste lithium battery decomposition component is insufficiently dried due to too fast conveying is avoided, residual electrolyte is still attached to the decomposition component, meanwhile, the problem that the whole working efficiency is influenced due to too slow conveying is avoided, and the problem that more equipment working cost is input due to too slow conveying is avoided, so that the final benefit is influenced.
Electrolyte drying module 24: the method comprises the steps of acquiring real-time position information of a waste lithium battery decomposition component, transmitting the waste lithium battery decomposition component to a drying chamber based on the real-time position information, and drying electrolyte of the waste lithium battery decomposition component by the drying chamber based on the conveying rate, the expected heating time and the adjusted air inlet temperature;
in the implementation process of the invention, the drying chamber carries out electrolyte drying treatment on the waste lithium battery decomposition component based on the conveying rate, the expected heating time and the adjusted air inlet temperature, and the method comprises the following steps: generating a drying instruction based on the conveying speed, the expected heating time and the adjusted air inlet temperature, and regulating and controlling the working environment parameters in the drying chamber based on the drying instruction; and (3) performing electrolyte drying treatment on the waste lithium battery decomposition component through a drying chamber regulated and controlled by the working environment parameters.
Specifically, a drying instruction is generated based on the conveying speed, the expected heating time and the adjusted air inlet temperature, the drying instruction is transmitted to a drying chamber, the drying chamber adjusts internal working environment parameters according to the drying instruction, real-time position information of the waste lithium battery decomposition component is obtained through positioning equipment, the waste lithium battery decomposition component is transmitted to the drying chamber through a conveying channel according to the real-time position information, after the working environment parameters are adjusted by the drying chamber, electrolyte drying treatment is started on the waste lithium battery decomposition component, serious pollution and harm caused by direct discharge of electrolyte into the environment can be avoided, and the generation of oxide impurities and toxic gases can be greatly restrained by adopting a drying mode for electrolyte treatment.
Monitoring and operating parameter adjustment module 25: the system is used for carrying out data acquisition and processing based on a plurality of environment monitoring sensors arranged in the drying chamber in the process of carrying out electrolyte drying treatment, obtaining corresponding monitoring data and adjusting working parameters of the drying chamber in real time based on the corresponding monitoring data.
In the specific implementation process of the invention, the data acquisition processing is performed based on a plurality of environmental monitoring sensors arranged in the drying chamber to obtain corresponding monitoring data, and the working parameters of the drying chamber are adjusted in real time based on the corresponding monitoring data, and the method comprises the following steps: determining the first time of the waste lithium battery decomposition component when the waste lithium battery decomposition component enters the drying chamber to carry out electrolyte drying treatment based on image acquisition equipment arranged in the drying chamber; when the waste lithium battery decomposition component is determined to enter a drying chamber, carrying out data acquisition processing according to a preset acquisition interval frequency based on a plurality of environment monitoring sensors arranged in the drying chamber to obtain corresponding monitoring data; analyzing and processing based on the corresponding monitoring data to obtain an analysis result; and controlling corresponding equipment arranged in the drying chamber to adjust the working parameters of the drying chamber in real time based on the analysis result.
Specifically, a camera device is arranged in the drying chamber, when the camera device collects images, the collecting time is marked on the images, when the waste lithium battery decomposition component is transported into the drying chamber, the camera device is automatically triggered to collect the images of the waste lithium battery decomposition component entering the drying chamber, and the marked collecting time is used as the first time when the waste lithium battery decomposition component enters the drying chamber to carry out electrolyte drying treatment; when the waste lithium battery decomposition component is determined to enter a drying chamber, a plurality of environment monitoring sensors distributed in the drying chamber are actively triggered to perform data acquisition processing according to a preset acquisition interval frequency to obtain corresponding monitoring data, the corresponding monitoring data comprise environment temperature data, corresponding equipment number information and the like, the corresponding monitoring data are uploaded to a monitoring system, analysis processing is performed based on the corresponding monitoring data, namely, the difference between the environment temperature data and target temperature data is compared with a preset difference, and even if the air inlet temperature and the heating time are regulated, the temperature in the drying chamber has a small deviation, and the preset difference is within an allowable deviation range to obtain an analysis result; if the difference is larger than the preset difference, an abnormal early warning is sent out, a corresponding drying chamber is found according to corresponding equipment number information, an analysis result controls corresponding equipment arranged in the drying chamber to adjust working parameters of the drying chamber in real time, such as proper air inlet temperature and heating time or proper conveying speed reduction, a plurality of environment monitoring sensors are distributed in the drying chamber, environment data in the drying chamber are collected according to preset collection interval frequency and uploaded to a monitoring system, the environment data in the drying chamber are monitored, the environment stability of the waste lithium battery decomposition component in the drying chamber is guaranteed, when the abnormality is found, the early warning can be timely carried out, the working parameters of the drying chamber are timely regulated and controlled, the full drying of the electrolyte of the waste lithium battery decomposition component is further guaranteed, and the drying effect is more ideal.
In the embodiment of the invention, the air inlet temperature of the drying chamber is regulated by adopting the PID control system formed by fusing the internal mold controller and the PID controller after parameter setting, the air inlet temperature can be better controlled, the control precision of the temperature of the drying chamber is improved by more proper air inlet temperature, the change of the size and the real-time temperature of the decomposition component of the waste lithium battery to the electrolyte conductivity is comprehensively considered, the concentration of the electrolyte and the electrolyte volume can be reflected through the conductivity change rate, the corresponding predicted heating time can be obtained by combining the obtained conductivity change rate with the regulated air inlet temperature, the more accurate predicted heating time can be obtained, the process of the drying treatment of the electrolyte can be monitored in real time, the electrolyte can be completely treated, the residual electrolyte is prevented from being attached to the decomposition component, and the harm to the environment caused by incomplete electrolyte treatment is avoided.
The embodiment of the invention provides a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and the program is executed by a processor to realize the method for controlling the drying of the electrolyte of the waste lithium battery in any one of the above embodiments. The computer readable storage medium includes, but is not limited to, any type of disk including floppy disks, hard disks, optical disks, CD-ROMs, and magneto-optical disks, ROMs (Read-Only memories), RAMs (Random AcceSS Memory, random access memories), EPROMs (EraSable Programmable Read-Only memories), EEPROMs (Electrically EraSable ProgrammableRead-Only memories), flash memories, magnetic cards, or optical cards. That is, a storage device includes any medium that stores or transmits information in a form readable by a device (e.g., computer, cell phone), and may be read-only memory, magnetic or optical disk, etc.
Example III
Referring to fig. 3, fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the invention.
The embodiment of the invention also provides an electronic device comprising a memory 31, a processor 33 and a computer program 32 stored in the memory 31 and executable on the processor 33, as shown in fig. 3. Those skilled in the art will appreciate that the electronic device shown in fig. 3 does not constitute a limitation of all devices, and may include more or fewer components than shown, or may combine certain components. The memory 31 may be used to store a computer program 32 and functional modules, and the processor 33 runs the computer program 32 stored in the memory 31 to perform various functional applications of the device and data processing. The memory may be internal memory or external memory, or include both internal memory and external memory. The internal memory may include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), flash memory, or random access memory. The external memory may include a hard disk, floppy disk, ZIP disk, U-disk, tape, etc. The processor 33 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. The general purpose processor may be a microprocessor, a single-chip microcomputer or the processor 33 may be any conventional processor or the like. The processors and memories disclosed herein include, but are not limited to, these types of processors and memories. The processors and memories disclosed herein are by way of example only and not by way of limitation.
As one embodiment, the electronic device includes: the one or more processors 33, the memory 31, and the one or more computer programs 32, wherein the one or more computer programs 32 are stored in the memory 31 and configured to be executed by the one or more processors 33, and the one or more computer programs 32 are configured to execute the method for controlling drying of the electrolyte of the waste lithium battery in any of the foregoing embodiments, and a specific implementation process is referred to the foregoing embodiments and is not repeated herein.
In the embodiment of the invention, the air inlet temperature of the drying chamber is regulated by adopting the PID control system formed by fusing the internal mold controller and the PID controller after parameter setting, the air inlet temperature can be better controlled, the control precision of the temperature of the drying chamber is improved by more proper air inlet temperature, the change of the size and the real-time temperature of the decomposition component of the waste lithium battery to the electrolyte conductivity is comprehensively considered, the concentration of the electrolyte and the electrolyte volume can be reflected through the conductivity change rate, the corresponding predicted heating time can be obtained by combining the obtained conductivity change rate with the regulated air inlet temperature, the more accurate predicted heating time can be obtained, the process of the drying treatment of the electrolyte can be monitored in real time, the electrolyte can be completely treated, the residual electrolyte is prevented from being attached to the decomposition component, and the harm to the environment caused by incomplete electrolyte treatment is avoided.
In addition, the method for controlling the drying of the electrolyte of the waste lithium battery and the related device provided by the embodiment of the invention are described in detail, and specific examples are adopted to illustrate the principle and the implementation mode of the invention, and the description of the above examples is only used for helping to understand the method and the core idea of the invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (8)
1. The method for controlling the drying of the electrolyte of the waste lithium battery is characterized by comprising the following steps of:
constructing a PID control system, calculating a deviation value of the internal temperature of the drying chamber and a preset target temperature, inputting the deviation value into the PID control system for operation, and adjusting the air inlet temperature of the drying chamber based on an operation result to obtain an adjusted air inlet temperature, wherein the constructing the PID control system comprises: establishing an object model of a waste lithium battery decomposition component, calculating the relative order of the object model, constructing an internal model controller by utilizing a low-pass filter function based on the relative order, calculating a transfer function based on a preset proportional coefficient, a preset integral coefficient and a preset differential coefficient, generating a conventional PID controller based on the transfer function, performing equivalent processing based on the object model to obtain an equivalent model, performing decomposition calculation processing on the equivalent model to obtain a first derivative and a second derivative, generating a first-order inertial transfer function based on the first derivative and the second derivative in combination with a preset filter constant, decomposing the first-order inertial transfer function to obtain a target parameter, performing parameter setting on the conventional PID controller based on the target parameter to obtain a PID controller after parameter setting, and performing fusion processing on the internal model controller and the PID controller after parameter setting to obtain a PID control system;
Detecting real-time temperature information and size information of a waste lithium battery decomposition component, and acquiring predicted heating time based on the real-time temperature information and the size information and the regulated inlet air temperature;
adjusting a transport rate within the drying chamber based on the predicted heating time in combination with the length information of the drying chamber;
acquiring real-time position information of the waste lithium battery decomposition component, transmitting the waste lithium battery decomposition component to a drying chamber based on the real-time position information, and performing electrolyte drying treatment on the waste lithium battery decomposition component by the drying chamber based on the conveying rate, the predicted heating time and the adjusted air inlet temperature;
in the process of carrying out electrolyte drying treatment, carrying out data acquisition and processing based on a plurality of environment monitoring sensors arranged in the drying chamber, obtaining corresponding monitoring data, and adjusting working parameters of the drying chamber in real time based on the corresponding monitoring data.
2. The method for controlling the drying of the electrolyte of the waste lithium battery according to claim 1, wherein the step of adjusting the intake air temperature of the drying chamber based on the operation result to obtain the adjusted intake air temperature comprises the steps of:
performing coefficient setting processing based on the operation result to obtain a related control coefficient;
And adjusting the air inlet temperature of the drying chamber based on the related control coefficient to obtain the adjusted air inlet temperature.
3. The method for controlling the drying of the electrolyte of the waste lithium battery according to claim 1, wherein the obtaining the predicted heating time based on the real-time temperature information and the size information combined with the adjusted inlet air temperature comprises:
acquiring theoretical conductivity of the waste lithium battery decomposition component, and acquiring a conductivity change rate by utilizing the theoretical conductivity based on the real-time temperature information and the size information;
and acquiring a corresponding detection value based on the conductivity change rate and the adjusted air inlet temperature, and inquiring corresponding expected heating time in a preset database based on the corresponding detection value.
4. The method for controlling the drying of the electrolyte of the waste lithium battery according to claim 1, wherein the drying chamber performs the electrolyte drying treatment of the waste lithium battery decomposition component based on the conveying rate, the predicted heating time and the adjusted intake air temperature, comprising:
generating a drying instruction based on the conveying speed, the expected heating time and the adjusted air inlet temperature, and regulating and controlling the working environment parameters in the drying chamber based on the drying instruction;
And (3) performing electrolyte drying treatment on the waste lithium battery decomposition component through a drying chamber regulated and controlled by the working environment parameters.
5. The method for controlling the drying of the electrolyte of the waste lithium battery according to claim 1, wherein the data acquisition and processing are performed based on a plurality of environmental monitoring sensors arranged in the drying chamber to obtain corresponding monitoring data, and the working parameters of the drying chamber are adjusted in real time based on the corresponding monitoring data, comprising:
determining the first time of the waste lithium battery decomposition component when the waste lithium battery decomposition component enters the drying chamber to carry out electrolyte drying treatment based on image acquisition equipment arranged in the drying chamber;
when the waste lithium battery decomposition component is determined to enter a drying chamber, carrying out data acquisition processing according to a preset acquisition interval frequency based on a plurality of environment monitoring sensors arranged in the drying chamber to obtain corresponding monitoring data;
analyzing and processing based on the corresponding monitoring data to obtain an analysis result;
and controlling corresponding equipment arranged in the drying chamber to adjust the working parameters of the drying chamber in real time based on the analysis result.
6. An electrolyte drying control device for waste lithium batteries, which is characterized by comprising:
The air inlet temperature adjusting module is as follows: the method is used for constructing a PID control system, calculating a deviation value of the internal temperature of the drying chamber and a preset target temperature, inputting the deviation value into the PID control system for operation, adjusting the air inlet temperature of the drying chamber based on an operation result to obtain an adjusted air inlet temperature, and the method comprises the following steps of: establishing an object model of a waste lithium battery decomposition component, calculating the relative order of the object model, constructing an internal model controller by utilizing a low-pass filter function based on the relative order, calculating a transfer function based on a preset proportional coefficient, a preset integral coefficient and a preset differential coefficient, generating a conventional PID controller based on the transfer function, performing equivalent processing based on the object model to obtain an equivalent model, performing decomposition calculation processing on the equivalent model to obtain a first derivative and a second derivative, generating a first-order inertial transfer function based on the first derivative and the second derivative in combination with a preset filter constant, decomposing the first-order inertial transfer function to obtain a target parameter, performing parameter setting on the conventional PID controller based on the target parameter to obtain a PID controller after parameter setting, and performing fusion processing on the internal model controller and the PID controller after parameter setting to obtain a PID control system;
The predicted heating time acquisition module: the method comprises the steps of detecting real-time temperature information and size information of a waste lithium battery decomposition component, and acquiring predicted heating time based on the real-time temperature information and the size information combined with the adjusted air inlet temperature;
a conveying rate adjusting module: for adjusting a transport rate within the drying chamber based on the predicted heating time in combination with the length information of the drying chamber;
and an electrolyte drying module: the method comprises the steps of acquiring real-time position information of a waste lithium battery decomposition component, transmitting the waste lithium battery decomposition component to a drying chamber based on the real-time position information, and drying electrolyte of the waste lithium battery decomposition component by the drying chamber based on the conveying rate, the expected heating time and the adjusted air inlet temperature;
monitoring and working parameter adjusting module: the system is used for carrying out data acquisition and processing based on a plurality of environment monitoring sensors arranged in the drying chamber in the process of carrying out electrolyte drying treatment, obtaining corresponding monitoring data and adjusting working parameters of the drying chamber in real time based on the corresponding monitoring data.
7. An electronic device comprising a processor and a memory, wherein the memory is configured to store instructions, and the processor is configured to invoke the instructions in the memory, so that the electronic device performs the method for controlling drying of the electrolyte of the waste lithium battery according to any one of claims 1 to 5.
8. A computer-readable storage medium storing computer instructions that, when executed on an electronic device, cause the electronic device to perform the method of controlling electrolyte drying of a spent lithium battery according to any one of claims 1 to 5.
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| WO2021195640A2 (en) * | 2020-03-27 | 2021-09-30 | Deka Products Limited Partnership | Water distillation apparatus, method and system |
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