Adaptive bed temperature coordination method and related equipment

Abstract

The invention relates to the technical field of adaptive control, and discloses an adaptive bed temperature coordination method and related equipment. The method comprises the following steps: acquiring disturbance information influencing the water content of discharged materials, and a set temperature and an actual temperature of a boiling bed; wherein the disturbance information comprises at least one of slurry amount change, slurry concentration change or steam fluctuation; based on the actual temperature of the boiling bed, the set temperature and the disturbance information, determining the total disturbance output by an observer; and the opening degree of a feeding valve of the centrifugal machine is adjusted based on the total disturbance amount. According to the method, the slurry drying effect can be improved.

Description

Technical Field

[0001] The present application relates to the field of adaptive control technology, and in particular to an adaptive bed temperature coordination method and related equipment. Background Art

[0002] Drying slurry is an extremely critical link in the chemical industry. Among them, slurry includes polyvinyl chloride (PVC), engineering plastics (such as ABS resin, MBS resin), cellulose, ammonium sulfate, ammonium chloride, and thenardite. As a treatment method for slurry drying, it is usually to use a centrifuge to preliminarily dehydrate the slurry to obtain a relatively wet material, and then send the material to a fluidized bed for drying to effectively reduce the water content of the output. Among them, when the slurry is being dried, the feed will be subject to external disturbances, which will cause the bed temperature of the fluidized bed to change, affecting the effect of drying the slurry. Therefore, how to improve the effect of drying the slurry is an urgent problem to be solved.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0004] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0005] The disclosed embodiments provide an adaptive bed temperature coordination method and related equipment to improve the effect of drying the slurry.

[0006] In some embodiments, an adaptive bed temperature coordination method is characterized in that it includes: obtaining disturbance information affecting the moisture content of the discharge material, the set temperature and the actual temperature of the fluidized bed; wherein the disturbance information includes at least one of a slurry amount change, a slurry concentration change or a steam fluctuation; based on the actual temperature of the fluidized bed, the set temperature and the disturbance information, determining the total amount of disturbance output by the observer; and adjusting the opening of the feed valve of the centrifuge based on the total amount of disturbance.

[0007] In some embodiments, the adaptive bed temperature coordination system is characterized in that it includes: an acquisition module for acquiring disturbance information affecting the moisture content of the discharge material, the set temperature and the actual temperature of the fluidized bed; wherein the disturbance information includes at least one of a slurry amount change, a slurry concentration change or a steam fluctuation; a determination module for determining the total amount of disturbance output by the observer based on the actual temperature of the fluidized bed, the set temperature and the disturbance information; and an adjustment module for adjusting the opening of the feed valve of the centrifuge based on the total amount of disturbance.

[0008] In some embodiments, a computing device includes: a processor and a memory storing program instructions, wherein the processor is configured to execute the adaptive bed temperature coordination method as described above when running the program instructions.

[0009] In some embodiments, a computer-readable storage medium includes: the computer-readable storage medium stores instructions, and when the instructions are executed on a terminal device, the terminal device executes the adaptive bed temperature coordination method as described above.

[0010] The adaptive bed temperature coordination method and related devices provided by the embodiments of the present disclosure can achieve the following technical effects:

[0011] By obtaining at least one external disturbance among the slurry amount change, slurry concentration change, and steam fluctuation, the disturbance information that significantly affects the water content of the discharge material is determined. The actual temperature, set temperature, and disturbance information of the fluidized bed are then used to determine the total disturbance output by the observer, so that the disturbance information can be effectively estimated based on the bed temperature change of the fluidized bed to determine the total disturbance. In this way, the opening of the centrifuge feed valve is adjusted based on the total disturbance, so as to adapt to the temperature change of the fluidized bed by controlling the amount of slurry entering the centrifuge, so that the fluidized bed can better dry the slurry, thereby improving the effect of drying the slurry.

[0012] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0014] Figure 1 It is a flow chart of an adaptive bed temperature coordination method provided by an embodiment of the present disclosure;

[0015] Figure 2 is a flow chart of another adaptive bed temperature coordination method provided by an embodiment of the present disclosure;

[0016] Figure 3 is a flow chart of another adaptive bed temperature coordination method provided by an embodiment of the present disclosure;

[0017] Figure 4 is a structural schematic diagram of an adaptive bed temperature coordination system according to an embodiment of the present disclosure;

[0018] Figure 5It is a structural diagram of a computing device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0019] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0020] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0021] Unless otherwise stated, the term "plurality" means two or more.

[0022] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0023] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0024] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0025] An adaptive bed temperature coordination method and related equipment provided by an embodiment of the present disclosure include an adaptive bed temperature coordination method, a system, a computing device and a computer storage medium.

[0026] Combination Figure 1 As shown, the embodiment of the present disclosure provides an adaptive bed temperature coordination method, comprising:

[0027] S101, obtaining disturbance information affecting the moisture content of the discharge, the set temperature and the actual temperature of the fluidized bed. The disturbance information includes at least one of a change in the amount of slurry, a change in the concentration of slurry or a fluctuation in steam. The fluidized bed is also called a fluidized bed. The slurry amount represents the amount of slurry entering the centrifuge within a preset time period, and the preset time period can be a unit time.

[0028] S102, determining the total amount of disturbance output by the observer based on the actual temperature, the set temperature and the disturbance information of the fluidized bed.

[0029] S103, adjusting the opening of the feed valve of the centrifuge based on the total amount of disturbance.

[0030] The adaptive bed temperature coordination method provided by the embodiment of the present disclosure is adopted to obtain at least one external disturbance among the slurry amount change, slurry concentration change, and steam fluctuation, so as to determine the disturbance information that significantly affects the moisture content of the discharge material. The actual temperature, set temperature, and disturbance information of the fluidized bed are then used to determine the total disturbance output by the observer, so that the disturbance information can be effectively estimated based on the bed temperature change of the fluidized bed to determine the total disturbance. In this way, the opening of the centrifuge feed valve is adjusted based on the total disturbance, so as to adapt to the temperature change of the fluidized bed by controlling the amount of slurry entering the centrifuge, so that the fluidized bed can better dry the slurry, thereby improving the effect of drying the slurry.

[0031] Among them, the moisture content of the discharge material represents the moisture content of the material obtained by drying the slurry in the fluidized bed.

[0032] It is understandable that the embodiment of the present disclosure will adjust the opening of the feed valve of the centrifuge in real time to ensure accurate control of the moisture content of the discharge material, thereby ensuring a better drying effect of the slurry.

[0033] That is, combined Figure 2 As shown, Figure 2 Another adaptive bed temperature coordination method is provided, including:

[0034] S201, obtaining disturbance information affecting the moisture content of the discharge material, the set temperature and the actual temperature of the fluidized bed, wherein the disturbance information includes at least one of a slurry amount change, a slurry concentration change or a steam fluctuation.

[0035] S202, determining the total amount of disturbance output by the observer based on the actual temperature, the set temperature and the disturbance information of the fluidized bed.

[0036] S203, adjusting the opening of the feed valve of the centrifuge based on the total disturbance amount, and then returning to step S201.

[0037] Optionally, the observer is a disturbance observer; based on the actual temperature, set temperature and disturbance information of the boiling bed, the total disturbance output by the observer is determined, including: based on the actual temperature, set temperature and disturbance information of the boiling bed, the total disturbance output by the disturbance observer is determined.

[0038] In this way, the disturbance observer is used for observation, so that the disturbance observer can make effective estimates based on the actual temperature, set temperature and disturbance information of the boiling bed, and can determine the total amount of disturbance with high real-time and high accuracy, so as to respond to changes in slurry feed rate in advance and reduce the impact of valve control response lag.

[0039] Optionally, adjusting the opening of the feed valve of the centrifuge based on the total amount of disturbance includes: determining an estimated feed amount based on the total amount of disturbance, and obtaining a target feed amount; determining a feed deviation based on the estimated feed amount and the target feed amount; and adjusting the opening of the feed valve of the centrifuge based on a fuzzy control algorithm and the feed deviation.

[0040] The fuzzy control algorithm has a small amount of calculation and high real-time performance. Therefore, by determining the feed deviation, and then adjusting the opening of the feed valve based on the fuzzy control algorithm and the feed deviation, it has good real-time performance, so that the opening of the feed valve can be controlled in real time to control the feed amount, thereby ensuring accurate control of the water content of the discharge and improving the effect of drying the slurry.

[0041] It is understandable that the estimated feed amount represents the amount of slurry entering the centrifuge estimated by the disturbance observer. The target feed amount represents the optimal amount of slurry entering the centrifuge. After the centrifuge performs preliminary dehydration on the slurry, the preliminarily dehydrated slurry (or material) will be sent to the fluidized bed for drying to further reduce the water content of the discharge. Among them, when the fluidized bed dries the preliminarily dehydrated slurry, it will emit a large amount of heat, which will obviously affect its actual temperature and thus affect the effect of drying the slurry. Therefore, by controlling the amount of slurry entering the centrifuge, the amount of slurry entering the fluidized bed after preliminary dehydration can be controlled, thereby ensuring that the impact on the actual temperature is reduced to ensure the effect of drying the slurry. The discharge water content represents the water content of the slurry after drying in the fluidized bed.

[0042] In some embodiments, the estimated feed rate is the amount of slurry entering the centrifuge per unit time estimated by the disturbance observer, that is, the slurry flow rate estimated by the disturbance observer. The target feed rate represents the optimal amount of slurry entering the centrifuge per unit time, that is, the optimal slurry flow rate.

[0043] Optionally, obtaining the target feed amount includes: obtaining the power of a centrifuge; and determining the target feed amount based on the power of the centrifuge.

[0044] The power of the centrifuge can determine its efficiency in dehydrating the slurry. Under ideal conditions, that is, when the water content of the discharge is low and the slurry has a good drying effect, the slurry (i.e., the slurry after preliminary dehydration) fed into the fluidized bed by the centrifuge will have an optimal amount. Similarly, based on this optimal amount and combined with the power of the centrifuge, the slurry entering the centrifuge under ideal conditions, i.e., the target feed amount, can be determined. Therefore, the target feed amount can be accurately determined by the power of the centrifuge in order to control the feed valve of the centrifuge.

[0045] Optionally, adjusting the opening of the feed valve of the centrifuge based on the fuzzy control algorithm and the feed deviation includes: obtaining a fuzzy rule base; determining an opening variable based on the fuzzy rule base and the feed deviation; and adjusting the opening of the feed valve of the centrifuge based on the opening variable. The feed deviation is the input of the fuzzy control algorithm, also known as the observed quantity. The opening variable is the output of the fuzzy control algorithm, also known as the controlled quantity.

[0046] In this way, the method of determining the opening variable based on the fuzzy rule base and the feed deviation has a small amount of calculation and is easy to implement. Therefore, the opening of the centrifuge feed valve can be adjusted in time, which is convenient for controlling the accuracy of the water content of the discharge, thereby improving the effect of drying the slurry.

[0047] Specifically, based on the opening variable, adjusting the opening of the feed valve of the centrifuge includes: obtaining the current opening of the feed valve, and taking the sum of the current opening and the opening variable as the target opening. Adjusting the opening of the feed valve of the centrifuge to the target opening. That is, determining the target opening at the next moment based on the opening at the current moment and the opening variable. The target opening is the optimal opening value of the feed valve.

[0048] Optionally, based on the fuzzy rule base and the feed deviation, the opening variable is determined, including: fuzzifying the feed deviation to obtain a fuzzified result; performing fuzzy reasoning on the fuzzified result based on the fuzzy rule base to obtain a fuzzy reasoning result; and defuzzifying the fuzzy reasoning result to obtain the opening variable.

[0049] The fuzzy control algorithm has a small amount of calculation and high real-time performance. Therefore, by fuzzifying the feed deviation and performing fuzzy reasoning and defuzzification on the fuzzified result, the opening variable can be determined quickly, which is convenient for precise control of the water content of the discharge material, and is conducive to improving the effect of drying the slurry.

[0050] Combination Figure 3 As shown, Figure 3 Another adaptive bed temperature coordination method is provided, including:

[0051] S301, obtaining disturbance information affecting the moisture content of the discharge material, the set temperature and the actual temperature of the fluidized bed, wherein the disturbance information includes at least one of a slurry amount change, a slurry concentration change or a steam fluctuation.

[0052] S302, determining the total amount of disturbance output by the disturbance observer based on the actual temperature of the fluidized bed, the set temperature and the disturbance information.

[0053] S303, determining an estimated feed amount based on the total disturbance amount, and obtaining a target feed amount.

[0054] S304, determining a feed deviation based on the estimated feed amount and the target feed amount.

[0055] S305, obtaining a fuzzy rule base.

[0056] S306, performing fuzzy processing on the feed deviation to obtain a fuzzy result.

[0057] S307, performing fuzzy reasoning on the fuzzification result based on the fuzzy rule base to obtain a fuzzy reasoning result.

[0058] S308, defuzzifying the fuzzy inference result to obtain the opening variable.

[0059] S309, based on the opening variable, adjust the opening of the feed valve of the centrifuge, and then return to execute step S301.

[0060] Optionally, an adaptive bed temperature coordination method further includes: if the total disturbance amount does not meet a preset threshold condition, issuing an early warning prompt, wherein the preset threshold condition indicates that the total disturbance amount is abnormal, that is, the observer fails.

[0061] When the total amount of disturbance is abnormal, the observer may fail. At this time, the total amount of disturbance output by the observer will be abnormal, which will affect the control of the centrifuge feed valve. Therefore, when the observer fails, an early warning prompt is issued to remind the staff so that the staff can know the abnormal situation in time, avoid the situation from getting worse, and reduce losses.

[0062] In some embodiments, issuing a pre-alert means issuing a warning message to a preset terminal, or controlling a preset voice device to issue a voice warning. The terminal may be a mobile phone, tablet, etc. The voice device may be a speaker, radio, etc.

[0063] Furthermore, obtaining a preset threshold condition includes: determining the threshold condition based on a confidence interval.

[0064] Furthermore, the threshold condition is determined based on the confidence interval, including: when drying the slurry, obtaining multiple historical disturbance totals, and determining the variance of the population using t distribution based on the obtained multiple historical disturbance totals; and determining the threshold condition using preset confidence and the variance of the population.

[0065] According to the central limit theorem, the sample mean of any population is usually normally distributed around the actual mean of the population, so a reasonable threshold condition can be determined based on the confidence interval.

[0066] Specifically, based on the obtained multiple historical disturbance totals, the variance of the population is determined using t distribution, including: calculating the sample mean of all historical disturbance totals And calculate the corresponding sample standard deviation as Based on the corresponding sample standard deviation, the variance of the population described by the t distribution is in, is the mean of all historical disturbances, X i is the total amount of historical disturbance of the ith time, n is the number of total historical disturbances, S is the sample standard deviation, t is the variance of the population, and μ is the mean of the population.

[0067] Specifically, the threshold condition is determined using the preset confidence and the variance of the population, including: using the preset confidence to construct a confidence interval of the population mean, using the confidence lower limit of the confidence interval as the lower threshold of the threshold condition, and using the confidence upper limit of the confidence interval as the upper threshold of the threshold condition. The calculation formula is as follows:

[0068]

[0069] Among them, α is the significance level, and (1-α) is the preset confidence level. Represents the right tail area of ​​a t distribution with n-1 degrees of freedom The corresponding t value is, Represents the confidence width, which describes the distribution interval of the acceptance domain. is the lower confidence limit, is the upper confidence limit.

[0070] In this embodiment, when the total disturbance is greater than or equal to and less than or equal to When the total disturbance is less than Or, greater than The observer fails.

[0071] Combination Figure 4As shown, an embodiment of the present disclosure provides an adaptive bed temperature coordination system, including: an acquisition module, a determination module and an adjustment module. The acquisition module is used to obtain disturbance information affecting the moisture content of the discharge material, the set temperature and the actual temperature of the fluidized bed; wherein the disturbance information includes at least one of a slurry amount change, a slurry concentration change or a steam fluctuation. The determination module is used to determine the total amount of disturbance output by the observer based on the actual temperature, the set temperature and the disturbance information of the fluidized bed. The adjustment module is used to adjust the opening of the feed valve of the centrifuge based on the total amount of disturbance.

[0072] The adaptive bed temperature coordination system provided by the embodiment of the present disclosure is used to obtain at least one external disturbance among the slurry amount change, slurry concentration change, and steam fluctuation, so as to determine the disturbance information that significantly affects the moisture content of the discharge material. The actual temperature of the fluidized bed, the set temperature, and the disturbance information are then used to determine the total amount of disturbance output by the observer, so that the disturbance information can be effectively estimated based on the bed temperature change of the fluidized bed to determine the total amount of disturbance. In this way, the opening of the centrifuge feed valve is adjusted based on the total amount of disturbance, so as to adapt to the temperature change of the fluidized bed by controlling the amount of slurry entering the centrifuge, so that the fluidized bed can better dry the slurry, thereby improving the effect of drying the slurry.

[0073] Optionally, the observer is a disturbance observer. The determination module is used to determine the total amount of disturbance output by the disturbance observer based on the actual temperature of the fluidized bed, the set temperature and the disturbance information.

[0074] Optionally, the regulating module is specifically used to determine the estimated feed amount based on the total disturbance and obtain the target feed amount; determine the feed deviation based on the estimated feed amount and the target feed amount; and regulate the opening of the feed valve of the centrifuge based on the fuzzy control algorithm and the feed deviation.

[0075] Optionally, the regulating module is specifically used to obtain the power of the centrifuge; and determine the target feed amount based on the power of the centrifuge.

[0076] Optionally, the regulating module is specifically used to obtain a fuzzy rule base; determine an opening variable based on the fuzzy rule base and a feed deviation; and regulate the opening of a feed valve of the centrifuge based on the opening variable.

[0077] Optionally, the regulating module is specifically used to perform fuzzy processing on the feed deviation to obtain a fuzzy result; perform fuzzy reasoning on the fuzzy result based on the fuzzy rule base to obtain a fuzzy reasoning result; and defuzzify the fuzzy reasoning result to obtain an opening variable.

[0078] Optionally, an adaptive bed temperature coordination system further includes: an early warning module, wherein the early warning module is used to issue an early warning prompt if the total amount of disturbance does not meet a preset threshold condition.

[0079] Combination Figure 5 As shown, an embodiment of the present disclosure provides a computing device, including a processor and a memory. Optionally, the computing device may also include a communication interface and a bus. The processor, the communication interface, and the memory may communicate with each other through the bus. The communication interface may be used for information transmission. The processor may call the logic instructions in the memory to execute the adaptive bed temperature coordination method of the above embodiment.

[0080] In addition, the logic instructions in the above-mentioned memory can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0081] The memory, as a computer-readable storage medium, can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor executes the function application and data processing by running the program instructions / modules stored in the memory, that is, realizing the adaptive bed temperature coordination method in the above embodiment.

[0082] The memory may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory may include a high-speed random access memory and may also include a non-volatile memory.

[0083] In an embodiment of the present invention, a computer-readable storage medium is provided, in which instructions are stored. When the instructions are run, the above-mentioned adaptive bed temperature coordination method is executed.

[0084] The computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0085] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method of the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a disk or an optical disk, and other media that can store program codes, or a transient storage medium.

[0086] The above description and accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent possible changes only. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method or device including the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0087] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. Technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. Technicians can clearly understand that for the convenience and simplicity of description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0088] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units can be only a logical function division, and there can be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0089] The flowchart and block diagram in the accompanying drawings show the possible architecture, functions and operations of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and a part of the module, program segment or code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. An adaptive bed temperature coordination method, characterized in that: include: Obtain disturbance information affecting the moisture content of the discharge material, the set temperature and the actual temperature of the fluidized bed; wherein the disturbance information includes at least one of a slurry amount change, a slurry concentration change or a steam fluctuation; Determining the total amount of disturbance output by the observer based on the actual temperature of the fluidized bed, the set temperature and the disturbance information; The opening of the feed valve of the centrifuge is adjusted based on the total amount of disturbance.

2. The method according to claim 1, characterized in that The observer is a disturbance observer; the total amount of disturbance output by the observer is determined based on the actual temperature of the fluidized bed, the set temperature and the disturbance information, including: The total amount of disturbance output by the disturbance observer is determined based on the actual temperature of the fluidized bed, the set temperature and the disturbance information.

3. The method according to claim 1, characterized in that The adjusting the opening of the feed valve of the centrifuge based on the total disturbance amount comprises: Determining an estimated feed amount based on the total disturbance amount, and obtaining a target feed amount; determining a feed deviation based on the estimated feed amount and the target feed amount; Based on the fuzzy control algorithm and the feed deviation, the opening of the feed valve of the centrifuge is adjusted.

4. The method according to claim 3, characterized in that The step of obtaining the target feed amount comprises: Obtaining the power of the centrifuge; The target feed amount is determined based on the power of the centrifuge.

5. The method according to claim 3 or 4, characterized in that: The method of adjusting the opening of the feed valve of the centrifuge based on the fuzzy control algorithm and the feed deviation comprises: Obtain fuzzy rule base; Determining an opening variable based on the fuzzy rule base and the feed deviation; Based on the opening variable, the opening of the feed valve of the centrifuge is adjusted.

6. The method according to claim 5, characterized in that The step of determining the opening variable based on the fuzzy rule base and the feed deviation comprises: Performing fuzzy processing on the feed deviation to obtain a fuzzy result; Performing fuzzy reasoning on the fuzzification result based on the fuzzy rule base to obtain a fuzzy reasoning result; The fuzzy inference result is defuzzified to obtain an opening variable.

7. The method according to claim 1, characterized in that Also includes: If the total amount of disturbance does not meet the preset threshold condition, an early warning prompt will be issued.

8. An adaptive bed temperature coordination system, characterized in that: include: An acquisition module, used to acquire disturbance information affecting the moisture content of the discharge material, the set temperature and the actual temperature of the fluidized bed; wherein the disturbance information includes at least one of a slurry amount change, a slurry concentration change or a steam fluctuation; A determination module, configured to determine a total disturbance amount output by an observer based on an actual temperature of the fluidized bed, the set temperature and the disturbance information; The regulating module is used to regulate the opening of the feed valve of the centrifuge based on the total disturbance amount.

9. A computing device comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the adaptive bed temperature coordination method according to any one of claims 1 to 7 when running the program instructions.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, and when the instructions are executed on a terminal device, the terminal device executes the adaptive bed temperature coordination method according to any one of claims 1 to 7.

Images