Industrial equipment linkage control system based on dynamic time sequence reconstruction

Abstract

The invention discloses an industrial equipment linkage control system based on dynamic time sequence reconstruction, relates to the technical field of kiln linkage control, solves the technical problems that a multi-system collaborative dynamic time sequence reconstruction capability is lacked and chain reaction caused by disturbance coupling is difficult to solve, and provides an industrial equipment linkage control system based on dynamic time sequence reconstruction by distinguishing humidity abnormal levels and customizing a heating strategy. The method ensures that heat release is completely matched with a wet material transmission rhythm, improves product drying uniformity, accurately calculates retention time and rotation speed according to a kiln type, realizes a'moisture evaporation demand-rotation speed-retention time 'closed loop, reduces energy consumption, integrates real-time material parameters, waste heat recovery and environment heat dissipation, accurately calculates a heat gap, and performs graded response, so that the energy consumption is reduced, and the energy consumption is reduced. And finally, a cooling air volume-pressure correlation model and an induced draft fan compensation-pressure repair model are established, accurate pressure compensation during cooling strengthening is achieved, and the stability of the microenvironment in the kiln is improved.

Description

Technical Field

[0001] This invention relates to the field of kiln linkage control technology, specifically to an industrial equipment linkage control system based on dynamic time sequence reconstruction. Background Technology

[0002] Kiln bodies (such as ceramic tunnel kilns, cement rotary kilns, glass melting furnaces, metallurgical roasting kilns, etc.) are the core equipment in process industries to achieve high-temperature reactions (sintering, melting, roasting) of materials. Their stable operation depends on the precise linkage of multiple devices such as feeding, transmission, temperature control, exhaust, and cooling.

[0003] According to patent application CN113979615A, a combustion control system and method for a glass furnace are disclosed. The combustion control system includes a furnace, an air supply unit, a fuel supply unit, an oxygen enrichment and control device, and a flue gas oxygen content measuring device. The air supply unit and the fuel supply unit are both sealed to the furnace via pipelines. With the cooperation of the flue gas oxygen content measuring device and the oxygen enrichment and control device, the concentration of harmful gases such as carbon monoxide and carbon dioxide in the exhaust gas can be monitored in real time, increasing the safety factor of the combustion. Moreover, through coordination and linkage with the oxygen enrichment control device and the induced draft fan, the flow rate of oxygen enrichment and air flow during the glass furnace melting process can be effectively controlled, so that fuel, air and oxygen enrichment can be delivered to the furnace in a relatively ideal ratio for combustion, thereby making the fuel combustion inside the furnace more complete.

[0004] However, existing technologies mostly adopt "single-parameter feedback control", lack the ability to dynamically reconstruct the timing of multiple systems, and are difficult to solve the "chain reaction caused by disturbance coupling". There is an urgent need to build an intelligent linkage mechanism covering the entire process of "feeding-temperature control-exhaust-cooling". Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an industrial equipment linkage control system based on dynamic timing reconstruction, which solves the problem of lacking dynamic timing reconstruction capability for multi-system collaboration and difficulty in resolving chain reactions caused by disturbance coupling.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an industrial equipment linkage control system based on dynamic time-sequence reconfiguration, comprising: The feed abnormality reconfiguration control module is used to analyze the feed humidity data transmitted by the sensor data acquisition module, determine the humidity level and generate preheating treatment information. At the same time, it coordinates the kiln rotation speed according to the humidity data, generates feed reconfiguration control information, and transmits it to the linkage control information output module. The temperature control anomaly reconstruction control module is used to analyze the calcination temperature data transmitted by the sensor data acquisition module, calculate the heat gap based on the kiln temperature and material parameters, predict the changes in the heat gap, and generate temperature reconstruction control information based on the changes. Then, it is transmitted to the linkage control information output module. The flue gas abnormality reconfiguration control module is used to analyze the flue gas pressure data transmitted by the sensor data acquisition module, compare the kiln pressure and material outlet temperature respectively, and establish pressure-induced draft fan speed and cooling-pressure relationships respectively. The two are then integrated for coordinated control to generate coordinated control information, which is then transmitted to the linkage control information output module.

[0007] As a further embodiment of the present invention, it also includes a sensor data acquisition module and a linkage control information output module; The sensor data acquisition module is used to collect sensor data inside the kiln, including feed humidity, calcination temperature and flue gas pressure, and transmit them to the corresponding analysis module. The linkage control information output module is used to perform linkage control on the kiln body based on the acquired feed reconstruction control information, temperature reconstruction control information, and collaborative control information.

[0008] As a further aspect of the present invention, the specific method by which the feed anomaly reconstruction control module determines the humidity level and generates preheating treatment information is as follows: Obtain the feed humidity data and compare it with the humidity standard. If the humidity data exceeds the humidity standard of 15%, it is classified as a mild humidity anomaly. If the humidity data exceeds the humidity standard of 20%, it is classified as a severe humidity anomaly. For mild humidity anomalies, the heating power of the preheating section is increased from 60% to 85% 30 seconds in advance. For severe humidity anomalies, the backup heating tube of the preheating section is activated, the heating time of this section is extended, and preheating processing information is generated.

[0009] As a further aspect of the present invention, the specific method by which the feed anomaly reconfiguration control module generates feed reconfiguration control information is as follows: Based on preheating information, rotation speed reduction is coordinated with other control methods. The increase in material moisture content and material mass are obtained, and the obtained parameters are substituted into the formula. The dwell time T was calculated. 需 Then, based on the obtained dwell time T 需 The corresponding rotational speed is calculated, and the kiln body is classified based on its rotation mode to obtain rotary kiln and tunnel kiln. The rotational speed is calculated according to different kiln body types, and the current rotational speed is adjusted based on the calculated rotational speed n as the standard, and feed reconfiguration control information is generated.

[0010] As a further aspect of the present invention, the specific method for calculating the rotational speed according to different kiln types is as follows: For rotary kilns, obtain the kiln body tilt angle. The effective length L and inner diameter D of the kiln body are also considered, and the obtained parameters are substituted into the formula. Calculations were performed, and the results were derived by reverse deduction. Further calculations yield the rotational speed n; For tunnel kilns, the residence time T of the material inside the tunnel kiln is obtained. 需 Simultaneously, obtain the linear velocity v of the conveyor belt and the effective length L of the kiln body, and establish the relationship: Next, based on the relationship between linear velocity v and rotational speed n The rotational speed n is calculated, and d is the diameter of the drive pulley of the conveyor belt. Active wheel circumference.

[0011] As a further aspect of the present invention, the temperature control anomaly reconstructing control module predicts changes in the heat gap in the following way: Obtain the temperature field and material parameters inside the kiln, and accurately calculate the heat gap Q. 需 According to formula Q 需 =Q 物料加热 +Q 水分蒸发 -Q 预热回收 Q 物料加热 Q represents the amount of heat required for a material to rise from its initial temperature to its target temperature. 水分蒸发 Q represents the amount of heat required for water in a material to change from a liquid to a gaseous state. 预热回收 This indicates the amount of waste heat that can be recovered and utilized from the kiln. Next, based on the obtained heat gap Q 需 Reconfigurable control is implemented by collecting data once per second through an in-kiln thermocouple array, material flow sensor, moisture meter, flue gas analyzer, and burner status sensor. The heat demand model is run in real-time via edge computing nodes to output the future heat gap and obtain the heat gap Q. 需 The changes.

[0012] As a further aspect of the present invention, the specific method by which the temperature control anomaly reconstruction control module generates temperature reconstruction control information based on changes is as follows: And obtain the heat gap Q 需 The changes in the heat gap Q are analyzed, and classification is performed based on these changes. 需 An increase of 10%-20% is classified as a Level 1 increase, if the heat deficit Q 需 An increase greater than 20% is classified as a secondary increase, if the heat deficit Q 需 If the reduction is 15% or more, the first-level category will be reduced, and each category will be restructured accordingly. For first-level increases, the target area burners are started ahead of schedule, and the commissioning interval of adjacent burners is shortened. For second-level increases, the standby burners are commissioned and started sequentially according to area priority. For first-level decreases, the commissioning time of low-priority burners is delayed, or some burners are suspended, and temperature reconfiguration control information is generated.

[0013] As a further aspect of the present invention, the specific method by which the smoke exhaust anomaly reconfiguration control module generates collaborative control information is as follows: The kiln pressure P and material outlet temperature T are obtained through sensors. 出 At the same time, the kiln pressure P is matched with the target range. If the kiln pressure P deviates from the target range and lasts for more than 2 seconds, a pressure anomaly signal is generated, and the direction of deviation of the kiln pressure P is analyzed. If the kiln pressure P is greater than the maximum value of the target range, a positive pressure trigger signal is generated; if the kiln pressure P is less than the minimum value of the target range, a negative pressure trigger signal is generated. Simultaneously, the material outlet temperature T 出 The analysis was performed, and it was compared with the process threshold. If the material outlet temperature T 出 If the process threshold is exceeded, a cooling adjustment signal is generated; Next, a comprehensive analysis was conducted based on the combined pressure and material outlet temperature.

[0014] As a further aspect of the present invention, the specific method for comprehensively analyzing the combined pressure and material outlet temperature is as follows: Establish the pressure-induced draft fan speed relationship ,in This represents the change in pressure inside the kiln. The change in the frequency of the induced draft fan is given by k, which is the equipment coefficient determined by the equipment itself. At the same time, the difference between the pressure inside the kiln and the target range is calculated and recorded as the pressure difference. This difference is then substituted into the formula to calculate the change in the frequency of the induced draft fan. Establish the cooling-pressure relationship ,in This represents the change in negative pressure inside the kiln caused by the increase in the frequency of the cooling fan, in meters. 冷却 This refers to the cooling-pressure coefficient, which is determined by the equipment itself. This represents the frequency change of the cooling fan. At the same time, the difference between the kiln pressure and the process threshold is calculated and recorded as the pressure difference. This difference is then substituted into the formula to calculate the frequency change of the cooling fan. When the cooling fan frequency is increased, the induced draft fan needs to be increased synchronously. The above formulas are then combined to obtain the following result. The synchronous frequency increase value is calculated according to the above formula, and the coordinated control information is generated.

[0015] This invention provides an industrial equipment linkage control system based on dynamic timing reconstruction. Compared with existing technologies, it has the following advantages: This invention differentiates humidity anomaly levels and customizes heating strategies to ensure that heat release and wet material transport rhythm are perfectly matched, improving product drying uniformity. It accurately calculates residence time and rotation speed according to kiln type, realizing a closed loop of "moisture evaporation demand - rotation speed - residence time" to reduce energy consumption. At the same time, it integrates real-time material parameters, waste heat recovery and environmental heat dissipation to accurately calculate heat gap and respond in stages to improve heat response speed. Finally, it establishes a cooling air volume-pressure correlation and induced draft fan compensation-pressure repair model to achieve precise pressure compensation during cooling enhancement and improve the stability of the kiln microenvironment. Attached Figure Description

[0016] Figure 1 This is a system block diagram of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1 Please see Figure 1 This application provides an industrial equipment linkage control system based on dynamic time-series reconstruction, including: a sensor data acquisition module, a feeding anomaly reconstruction control module, a temperature control anomaly reconstruction control module, a smoke exhaust anomaly reconstruction control module, and a linkage control information output module. Figure 1 As shown, the information between the above functional modules is transmitted in a one-way manner.

[0019] The sensor data acquisition module is used to acquire corresponding sensor data from different types of sensors installed in the kiln. The sensor data includes feed humidity, calcination temperature, and flue gas pressure. The module compares the sensor data with the corresponding preset values, identifies abnormal data, and transmits the abnormal data to the corresponding analysis module.

[0020] The feed abnormality reconstruction control module is used to analyze the acquired feed humidity data, compare the feed humidity data with the humidity standard, and classify it as a mild humidity abnormality if the humidity data exceeds the humidity standard of 15% and as a severe humidity abnormality if the humidity data exceeds the humidity standard of 20%. Reconstruction control processing is performed on the two respectively. An online microwave moisture meter (measuring overall moisture content with an accuracy of ±0.5%) and a near-infrared spectrometer (measuring surface humidity with a response time of <1 second) were used to simultaneously collect data below the feed inlet (0.3m away from the material), with a sampling frequency of 1 time / second. Set a standard range for process humidity (e.g., normal moisture content of ceramic raw materials 8%-12%, normal moisture content of cement raw materials ≤1%), and trigger classification when the humidity exceeds the range: Mild humidity anomaly: humidity data >15% (and ≤20%) for 3 consecutive seconds, such as the moisture content of ceramic raw materials increasing from 12% to 17%. Severe humidity anomaly: Humidity data >20% for 3 consecutive seconds, such as ceramic raw materials whose moisture content suddenly rises to 23% due to rain, or cement raw materials whose moisture content rises to 3% due to dampness during the rainy season.

[0021] For mild humidity anomalies, the heating power of the preheating section is increased from 60% to 85% 30 seconds in advance (based on the material transfer time from the feed inlet to the preheating section). For severe humidity anomalies, the backup heating tubes in the preheating section are turned on (e.g., two additional sets of heating wires are added), and the heating time of this section is extended (e.g., from the original 10 minutes / batch to 15 minutes), and preheating processing information is generated. For mild humidity anomalies, the distance from the feed inlet to the preheating section inlet was measured to be 6 meters using a laser rangefinder. The normal transmission speed is 0.2 m / s (tunnel kiln), and the transmission time is 6 / 0.2 = 30 seconds. Therefore, the adjustment is initiated 30 seconds in advance to ensure that the heat is sufficient when the wet material enters the preheating section. - Power adjustment method: The PLC controls the opening of the gas valve (e.g., in a natural gas kiln) or the number of electric heating elements in operation (e.g., in an electric heating kiln), linearly increasing from 60% (gas valve opening 50%) to 85% (opening 70%) to avoid sudden power increases that could lead to localized overheating.

[0022] For severe humidity anomalies, the calculated humidity increase (e.g., from 12% to 23%, an increase of 11%) requires an additional 0.11 kg of water to evaporate per kg of material, corresponding to a heat replenishment of 0.11 × 2260 = 248.6 kJ. The existing heating power is insufficient; therefore, two sets of 50kW backup electric heating elements (each set with a power of 50kW, capable of replenishing 100 kJ / s of heat) will be put into operation. - Heating duration extension logic: Based on the heat balance model, the original 10 minutes of heating could evaporate 12% of the humidity; currently, 23% of the humidity needs to be evaporated. Therefore, the heating time needs to be extended by 50% (10 minutes → 15 minutes) to ensure sufficient moisture evaporation.

[0023] Based on preheating information, rotation speed reduction is coordinated with other control methods. The increase in material moisture content and material mass are obtained, and the obtained parameters are substituted into the formula. The dwell time T was calculated. 需 Then, based on the obtained dwell time T 需Calculate the corresponding rotational speed, and the specific calculation method is as follows: Based on the rotation method of the kiln body, kilns are classified into rotary kilns and tunnel kilns. Specifically, a rotary kiln is characterized by the rotation of the internal cylinder, while a tunnel kiln is characterized by the rotation of the cylinder via a conveyor belt. The rotation speed is calculated according to the different types of kilns. For rotary kilns, obtain the kiln body tilt angle. The effective length L and inner diameter D of the kiln body are also considered, and the obtained parameters are substituted into the formula. Calculations were performed, and the results were derived by reverse deduction. Further calculations yield the rotational speed n; The kiln has an effective length L = 80 meters, an inner diameter D = 4 meters, and an inclination angle α = 3° (tanα ≈ 0.052). Currently, it is experiencing a severe anomaly (raw material moisture content 3%, normal ≤ 1%). Calculations indicate that the residence time needs to be extended to 45 minutes (originally 30 minutes). According to... The calculated rotational speed n = 3.3 r / min was reduced from the original speed of 4.5 r / min to 3.3 r / min using a frequency converter for the drive motor, while simultaneously monitoring the motor current (ensuring it is ≤ 80% of the rated current to avoid overload).

[0024] For tunnel kilns, the residence time T of the material inside the tunnel kiln is obtained. 需 Simultaneously, the linear velocity v of the conveyor belt and the effective length L of the kiln body are obtained, and the corresponding relationship is established: Next, based on the relationship between linear velocity v and rotational speed n The rotational speed n is calculated, and d is the diameter of the drive pulley of the conveyor belt. Active wheel circumference; For example, the effective length of the kiln body L=120 meters, the diameter of the drive wheel of the conveyor belt d=0.5 meters, the normal feed moisture content is 12%, and the current content is slightly abnormal (17%). It is calculated that the residence time needs to be extended to 100 minutes (originally 80 minutes). Based on the relationship between linear velocity and residence time and the relationship between linear velocity and drive wheel speed, the rotational speed n=45.8 r / min is obtained. The speed of the conveyor belt motor is reduced from the original 57 r / min (corresponding to 80 minutes of residence) to 45.8 r / min. The speed is smoothly adjusted by the frequency converter (the speed transition is completed within 30 seconds to avoid material slippage).

[0025] Next, the current rotational speed is adjusted based on the calculated rotational speed n, and feed reconstruction control information is generated and transmitted to the linkage control information output module.

[0026] The linkage control information output module is used to perform linkage control on the kiln body based on the acquired material reconstruction control information.

[0027] Example 2 As a second embodiment of the present invention, it is implemented based on the first embodiment, and the difference from the first embodiment is as follows: The temperature control anomaly reconstruction module is used to analyze the acquired calcination temperature data, obtain the temperature field and material parameters inside the kiln, and accurately calculate the heat gap Q. 需 According to formula Q 需 =Q 物料加热 +Q 水分蒸发 -Q 预热回收 Q 物料加热 This represents the amount of heat (Q) required to raise a material from an initial temperature (e.g., 20°C) to a target temperature (e.g., 1200°C). 物料加热 =mc (where m is the mass of the material, c is the specific heat capacity), Q 水分蒸发 Q represents the amount of heat (Q) required for water in a material to change from a liquid to a gaseous state. 水分蒸发 =m 水 ×2260kJ / kg, where 2260 is the latent heat of vaporization of water), Q 余热回收 This indicates the amount of waste heat from the kiln (such as waste heat from flue gas) that can be recovered and utilized (calculated using the efficiency of the heat exchanger). Next, based on the obtained heat gap Q 需 Reconfiguration control is implemented using a kiln-based thermocouple array (measuring temperature field), material flow sensor (measuring feed rate), moisture meter (measuring material humidity), flue gas analyzer (measuring O2 and NOx concentrations), and burner status sensor (measuring gas pressure and valve opening). Data is collected once per second. An edge computing node (deployed close to the kiln) runs a real-time heat demand model. This model is based on existing technology and will not be elaborated upon further. It outputs the current / future (e.g., in 5 seconds) heat gap and obtains the heat gap Q. 需 The changes in the heat gap Q are analyzed, and classification is performed based on these changes. 需 An increase of 10%-20% is classified as a Level 1 increase, if the heat deficit Q 需 An increase greater than 20% is classified as a secondary increase, if the heat deficit Q 需 If the reduction is 15% or more, the first-level category will be reduced, and each category will be restructured accordingly. For level 1 increases, the target area burners are activated ahead of schedule, and the activation interval between adjacent burners is shortened. For example, in the original sequence, burner A (responsible for the 3-5 meter section) was activated once every 60 seconds; in the new sequence, because it is predicted that the material in this area will require additional heat in 5 seconds, burner A is activated 3 seconds earlier, reducing the activation interval from 60 seconds to 50 seconds. For level 2 increases, the standby burners are activated according to "area priority". The burners are started sequentially. For example, the original burners A / B (covering 0-10 meters) are activated first. The new sequence is as follows: the backup burner C (covering 5-15 meters, avoiding cold spots in the overlapping area with A / B) is activated first, and then burner D (covering 15-20 meters) is activated after a 2-second interval. The first-level reduction is handled by delaying the activation time of low-priority burners or suspending some burners. For example, the original sequence was that burner B was activated once every 40 seconds. The new sequence is that the activation time of burner B is delayed to once every 60 seconds. If the temperature is still too high, burner B is suspended (A / C is retained to maintain basic heat), and temperature reconstruction control information is generated and transmitted to the linkage control information output module.

[0028] Based on actual conditions, taking a cement rotary kiln as an example, for a 5000t / d cement rotary kiln, the normal Q... 需 =25000kW, due to the increase in raw meal moisture content from 1% to 3% (Q 需 (Increased to 28000kW, an increase of 12%), and after analysis, it was determined to be a first-level increase, followed by the generation of the following reconfiguration control: Burner start-up and shutdown: Start the kiln tail burner 2 seconds in advance (originally planned to start after 5 seconds), and the commissioning interval is changed from 45 seconds to 40 seconds; Power adjustment: The kiln head burner power is adjusted from 20000kW to 22400kW (achieved by adjusting the pulverized coal supply from 3.5t / h to 4.0t / h). Air distribution coordination: Combustion fan frequency changes from 40Hz to 45Hz (adjusted 0.5 seconds ahead), air-fuel ratio is maintained. =1.2; Fuel supply: The pulverized coal valve opening is adjusted in 3-second increments from 60% to 68% (to avoid pipe blockage).

[0029] The linkage control information output module is used to perform linkage control on the kiln body based on the acquired temperature reconstruction information.

[0030] Example 3 As a third embodiment of the present invention, it is implemented based on the first embodiment, and the difference from the first embodiment is as follows: The flue gas abnormality reconstruction control module is used to analyze the acquired flue gas pressure data and obtain the kiln pressure P and material outlet temperature T through sensors. 出At the same time, the kiln pressure P is matched with the target range, and the specific value of the target range is set according to the actual working requirements. If the kiln pressure P deviates from the target range and lasts for more than 2 seconds, a pressure abnormality signal is generated, and the direction of deviation of the kiln pressure P is analyzed. If the kiln pressure P is greater than the maximum value of the target range, a positive pressure trigger signal is generated; if the kiln pressure P is less than the minimum value of the target range, a negative pressure trigger signal is generated. Then, the two are analyzed separately, and a corresponding relationship is established based on the pressure-induced draft fan speed relationship. ,in This represents the change in pressure inside the kiln. Let k be the change in the frequency of the induced draft fan, and k be the equipment coefficient determined by the equipment itself. Simultaneously, the difference between the kiln pressure and the target pressure range is calculated and recorded as the pressure difference. This difference is then substituted into the formula to obtain the change in the induced draft fan frequency. Simultaneously, the material outlet temperature T 出 The analysis was performed, and it was compared with the process threshold. If the material outlet temperature T 出 If the process threshold is exceeded, a cooling adjustment signal is generated, which is then quantified, correlated, and a corresponding relationship is established. ,in This represents the change in negative pressure inside the kiln caused by the increase in the frequency of the cooling fan, in meters. 冷却 This refers to the cooling-pressure coefficient, which is determined by the equipment itself. This represents the frequency change of the cooling fan. At the same time, the difference between the kiln pressure and the process threshold is calculated and recorded as the pressure difference. This difference is then substituted into the formula to calculate the frequency change of the cooling fan. When the cooling fan frequency is increased (to enhance cooling), the induced draft fan needs to be increased simultaneously (to enhance suction) to counteract the effect of cooling on pressure and maintain a stable slight negative pressure inside the kiln. Specifically, this is achieved by comprehensively processing the above formulas. The synchronous frequency increase value is calculated according to the above formula, and the coordinated control information is generated and transmitted to the linkage control information output module.

[0031] For example, given m 冷却 =0.6Pa / Hz, cooling raises 5Hz. =0.6×5=3Pa (negative pressure increases by 3Pa, i.e., pressure changes from -5Pa to -8Pa). The induced draft fan needs to be frequency-increased to compensate for this 3Pa pressure change. (This is in conjunction with the induced draft fan's...) Perform calculations, for example, k = 2 Pa / Hz, and substitute the values ​​into the above formula to obtain the result. It is 1.5Hz.

[0032] The linkage control information output module is used to perform linkage control on the kiln body based on the acquired collaborative control information.

[0033] Example 4 As a fourth embodiment of the present invention, the focus is on combining the implementation processes of embodiments one, two and three.

[0034] The data in the above formulas are all calculated using numerical values, without substituting the units of the parameters. In addition, the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0035] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. An industrial equipment linkage control system based on dynamic time-sequence reconfiguration, characterized in that, include: The feed abnormality reconfiguration control module is used to analyze the feed humidity data transmitted by the sensor data acquisition module, determine the humidity level and generate preheating treatment information. At the same time, it coordinates the kiln rotation speed according to the humidity data, generates feed reconfiguration control information, and transmits it to the linkage control information output module. The temperature control anomaly reconstruction control module is used to analyze the calcination temperature data transmitted by the sensor data acquisition module, calculate the heat gap based on the kiln temperature and material parameters, predict the changes in the heat gap, and generate temperature reconstruction control information based on the changes. Then, it is transmitted to the linkage control information output module. The flue gas abnormality reconfiguration control module is used to analyze the flue gas pressure data transmitted by the sensor data acquisition module, compare the kiln pressure and material outlet temperature respectively, and establish pressure-induced draft fan speed and cooling-pressure relationships respectively. The two are then integrated for coordinated control to generate coordinated control information, which is then transmitted to the linkage control information output module.

2. The industrial equipment linkage control system based on dynamic timing reconstruction according to claim 1, characterized in that, It also includes a sensor data acquisition module and a linkage control information output module; The sensor data acquisition module is used to collect sensor data inside the kiln, including feed humidity, calcination temperature and flue gas pressure, and transmit them to the corresponding analysis module. The linkage control information output module is used to perform linkage control on the kiln body based on the acquired feed reconstruction control information, temperature reconstruction control information, and collaborative control information.

3. The industrial equipment linkage control system based on dynamic timing reconstruction according to claim 1, characterized in that, The specific method by which the feed anomaly reconstruction control module determines the humidity level and generates preheating treatment information is as follows: Obtain the feed humidity data and compare it with the humidity standard. If the humidity data exceeds the humidity standard of 15%, it is classified as a mild humidity anomaly. If the humidity data exceeds the humidity standard of 20%, it is classified as a severe humidity anomaly. For mild humidity anomalies, the heating power of the preheating section is increased from 60% to 85% 30 seconds in advance. For severe humidity anomalies, the backup heating tube of the preheating section is activated, the heating time of this section is extended, and preheating processing information is generated.

4. The industrial equipment linkage control system based on dynamic timing reconstruction according to claim 1, characterized in that, The specific method by which the feed anomaly reconfiguration control module generates feed reconfiguration control information is as follows: Based on preheating information, rotation speed reduction is coordinated with other control methods. The increase in material moisture content and material mass are obtained, and the obtained parameters are substituted into the formula. The dwell time T was calculated. 需 Then, based on the obtained dwell time T 需 The corresponding rotational speed is calculated, and the kiln body is classified based on its rotation mode to obtain rotary kiln and tunnel kiln. The rotational speed is calculated according to different kiln body types, and the current rotational speed is adjusted based on the calculated rotational speed n as the standard, and feed reconfiguration control information is generated.

5. The industrial equipment linkage control system based on dynamic timing reconstruction according to claim 4, characterized in that, The specific method for calculating the rotational speed based on different kiln types is as follows: For rotary kilns, obtain the kiln body tilt angle. The effective length L and inner diameter D of the kiln body are also considered, and the obtained parameters are substituted into the formula. Calculations were performed, and the results were derived by reverse deduction. Further calculations yield the rotational speed n; For tunnel kilns, the residence time T of the material inside the tunnel kiln is obtained. 需 Simultaneously, obtain the linear velocity v of the conveyor belt and the effective length L of the kiln body, and establish the relationship: Next, based on the relationship between linear velocity v and rotational speed n The rotational speed n is calculated, and d is the diameter of the drive pulley of the conveyor belt. Active wheel circumference.

6. The industrial equipment linkage control system based on dynamic timing reconstruction according to claim 1, characterized in that, The temperature control anomaly reconstruction control module predicts changes in the heat gap in the following way: Obtain the temperature field and material parameters inside the kiln, and accurately calculate the heat gap Q. 需 According to formula Q 需 =Q 物料加热 +Q 水分蒸发 -Q 预热回收 Q 物料加热 Q represents the amount of heat required for a material to rise from its initial temperature to its target temperature. 水分蒸发 Q represents the amount of heat required for water in a material to change from a liquid to a gaseous state. 预热回收 This indicates the amount of waste heat that can be recovered and utilized from the kiln. Next, based on the obtained heat gap Q 需 Reconfigurable control is implemented by collecting data once per second through an in-kiln thermocouple array, material flow sensor, moisture meter, flue gas analyzer, and burner status sensor. The heat demand model is run in real-time via edge computing nodes to output the future heat gap and obtain the heat gap Q. 需 The changes.

7. The industrial equipment linkage control system based on dynamic timing reconstruction according to claim 1, characterized in that, The specific method by which the temperature control anomaly reconstruction control module generates temperature reconstruction control information based on changes is as follows: And obtain the heat gap Q 需 The changes in the heat gap Q are analyzed, and classification is performed based on these changes. 需 An increase of 10%-20% is classified as a Level 1 increase, if the heat deficit Q 需 An increase greater than 20% is classified as a secondary increase, if the heat deficit Q 需 If the reduction is 15% or more, the first-level category will be reduced, and each category will be restructured accordingly. For first-level increases, the target area burners are started ahead of schedule, and the commissioning interval of adjacent burners is shortened. For second-level increases, the standby burners are commissioned and started sequentially according to area priority. For first-level decreases, the commissioning time of low-priority burners is delayed, or some burners are suspended, and temperature reconfiguration control information is generated.

8. The industrial equipment linkage control system based on dynamic timing reconstruction according to claim 1, characterized in that, The specific method by which the smoke exhaust anomaly reconstruction control module generates collaborative control information is as follows: The kiln pressure P and material outlet temperature T are obtained through sensors. 出 At the same time, the kiln pressure P is matched with the target range. If the kiln pressure P deviates from the target range and lasts for more than 2 seconds, a pressure anomaly signal is generated, and the direction of deviation of the kiln pressure P is analyzed. If the kiln pressure P is greater than the maximum value of the target range, a positive pressure trigger signal is generated; if the kiln pressure P is less than the minimum value of the target range, a negative pressure trigger signal is generated. Simultaneously, the material outlet temperature T 出 The analysis was performed, and it was compared with the process threshold. If the material outlet temperature T 出 If the process threshold is exceeded, a cooling adjustment signal is generated; Next, a comprehensive analysis was conducted based on the combined pressure and material outlet temperature.

9. The industrial equipment linkage control system based on dynamic timing reconstruction according to claim 8, characterized in that, The specific method for comprehensively analyzing the combined pressure and material outlet temperature is as follows: Establish the pressure-induced draft fan speed relationship ,in This represents the change in pressure inside the kiln. The change in the frequency of the induced draft fan is given by k, which is the equipment coefficient determined by the equipment itself. At the same time, the difference between the pressure inside the kiln and the target range is calculated and recorded as the pressure difference. This difference is then substituted into the formula to calculate the change in the frequency of the induced draft fan. Establish the cooling-pressure relationship ,in This represents the change in negative pressure inside the kiln caused by the increase in the frequency of the cooling fan, in meters. 冷却 This refers to the cooling-pressure coefficient, which is determined by the equipment itself. This represents the frequency change of the cooling fan. At the same time, the difference between the kiln pressure and the process threshold is calculated and recorded as the pressure difference. This difference is then substituted into the formula to calculate the frequency change of the cooling fan. When the cooling fan frequency is increased, the induced draft fan needs to be increased synchronously. The above formulas are then combined to obtain the following result. The synchronous frequency increase value is calculated according to the above formula, and the coordinated control information is generated.

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