An automatic-based rotary kiln high-temperature reaction and cooling intelligent control system

Abstract

The application discloses a kind of high temperature reaction and cooling intelligent control system of rotary kiln based on automation, specifically related to automation field, including time characteristic text division module, rotary kiln key text acquisition module, rotary kiln key text preprocessing module, rotary kiln key text analysis module, comprehensive temperature control module, high temperature reaction and cooling judging module, man-machine interaction module, based on the division of time characteristic text, first key text and second key text are selected, and the key text is preprocessed, to obtain the first temperature data and the first performance data corresponding to the key text, so as to obtain the first temperature evaluation value corresponding to the first key text and the first performance evaluation value corresponding to the second key text by rotary kiln quality intelligent analysis model, import control algorithm, accurately control the running state of rotary kiln, so as to improve the quality and production efficiency of product, and ensure that the system keeps stable operation under complex working conditions through real-time monitoring.

Description

Technical Field

[0001] This invention relates to the field of automation technology, and more specifically, to an intelligent control system for high-temperature reaction and cooling of a rotary kiln based on automation. Background Technology

[0002] With the continuous development of industrial automation technology and the intensification of market competition, enterprises have increasingly higher requirements for production efficiency. Rotary kilns are widely used in metallurgy, cement and other production fields. Rotary kiln temperature control is developing towards a more intelligent direction. By introducing intelligent sensors, intelligent controllers and intelligent actuators, more accurate and real-time temperature control can be achieved, while reducing energy consumption and emissions, improving the production efficiency and product quality of enterprises, and bringing significant economic and social benefits to enterprises.

[0003] Traditional rotary kiln temperature control systems generally rely on mechanical control methods, including a rotary kiln temperature acquisition module, a temperature data analysis module, and a human-machine interface module. The rotary kiln temperature acquisition module collects temperature data during the operation of the rotary kiln. Temperature-sensing elements are inserted radially at the locations to be monitored along the rotary kiln axis to directly measure the temperature. The electrical signal is exported through a slip ring fixed to the kiln body and an external brush system. The temperature data analysis module analyzes the collected temperature data to obtain information about the internal temperature of the rotary kiln. The human-machine interface module controls the temperature of the rotary kiln based on the analysis of the temperature data, and performs reasonable temperature control on the high-temperature zone and the cooling zone respectively.

[0004] However, in practical use, it still has some shortcomings. For example, the rotary kiln temperature acquisition module uses contact-type automatic temperature measurement and control. Although it can measure the true value of the temperature inside the rotary kiln, when the electrical signal is weak or the contact is poor, the data collected by the system is not comprehensive enough, resulting in inaccurate data analysis by the temperature data analysis module. The human-machine interaction module heats materials in a traditional way, which results in a slow heating rate, serious energy waste, and unstable material quality. Therefore, it is necessary to introduce an automated control system to realize the automated control and intelligent management of the rotary kiln temperature. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide an automated intelligent control system for high-temperature reaction and cooling of rotary kilns, which solves the problems mentioned in the background art through the following solutions.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automated intelligent control system for high-temperature reaction and cooling in a rotary kiln, comprising: Time Feature Text Segmentation Module: The material processing time in the rotary kiln is set as the control time region, and the control time region is divided into various time feature texts by equal time division, denoted as 1, 2, 3...n; Rotary kiln key text acquisition module: Selects the first key text based on time feature text and acquires the second key text, including rotary kiln temperature information acquisition unit, rotary kiln gas concentration acquisition unit, rotary kiln physical information acquisition unit and key text acquisition unit; Rotary kiln key text preprocessing module: receives and preprocesses key text. The preprocessing operation is used to obtain the first temperature data corresponding to the first key text. It also preprocesses the obtained second key text. The preprocessing operation is used to obtain the first performance data corresponding to the second key text. Rotary kiln key text analysis module: Analyzes key texts to obtain the intelligent analysis model of rotary kiln quality. Based on the intelligent analysis model of rotary kiln quality, it obtains the first temperature evaluation value corresponding to the first key text and the first performance evaluation value corresponding to the second key text through the first temperature data and the first performance data. Integrated temperature control module: Based on the first temperature evaluation value corresponding to the first key text and the first performance evaluation value corresponding to the second key text, obtain the integrated temperature control index; High-temperature reaction and cooling judgment module: Based on the comprehensive temperature control index, the temperature of the rotary kiln is adjusted and controlled; Human-computer interaction module: Based on the first temperature assessment value, the first performance assessment value, and the comprehensive temperature control index, the judgment results are sent to the management personnel's user terminal according to the preset summary method.

[0007] Preferably, the time feature text segmentation module takes the time when the material enters from one end of the rotary kiln as the starting time, and the processing time during which the material gradually moves from the starting time to the other end through the rotation of the rotary kiln as the control time area. The time segmentation of each time feature text is selected according to the actual needs, with appropriate segmentation time precision, including per hour, per minute, per half minute, per second, and per half second.

[0008] Preferably, the rotary kiln key text acquisition module acquires key text by collecting data from each time feature text based on equally divided time periods, specifically including: Rotary kiln temperature information acquisition unit: used to collect rotary kiln temperature information, including the temperature of the firing zone, the temperature of the flame at the kiln head, the temperature of the gas in the smoke chamber at the kiln tail, and the temperature of the rotary kiln shell. Rotary kiln gas concentration acquisition unit: used to acquire the gas concentration of the rotary kiln, including the concentration of combustion gases, the oxygen concentration in the kiln tail flue, and the concentration of harmful gases; Rotary kiln physical information acquisition unit: used to collect physical information of the rotary kiln, including rotary kiln rotation speed, total material output, and heating output power; Key text acquisition unit: Classifies and summarizes the data acquired by the rotary kiln temperature information acquisition unit, the rotary kiln gas concentration acquisition unit, and the rotary kiln physical information acquisition unit. The data acquired by the rotary kiln temperature information acquisition unit and the rotary kiln gas concentration acquisition unit are integrated into the first key text, and the data acquired by the rotary kiln physical information acquisition unit are integrated into the second key text. The second key text is the key text selected after the first key text.

[0009] Preferably, the rotary kiln key text preprocessing module includes a first key text preprocessing unit and a second key text preprocessing unit. The first key text preprocessing unit is used to preprocess the first key text to obtain the first temperature data. The specific acquisition process is as follows: A1: Receive the first key text transmitted by the rotary kiln key text acquisition module; A2: Clean and standardize the first key text data; A3: Obtain the average and fluctuation values ​​of rotary kiln temperature based on the standardized first key text, and integrate them into the first temperature data, including the kiln head flame temperature fluctuation value, the kiln tail gas temperature fluctuation value, the average temperature of the calcination zone, the average temperature of the rotary kiln shell, the fluctuation value of combustion gas concentration, the fluctuation value of oxygen concentration in the kiln tail smoke chamber, and the fluctuation value of harmful gas concentration. The second key text preprocessing unit is used to preprocess the second key text to obtain the first performance data. The specific acquisition process is as follows: B1: Receive the second key text transmitted by the rotary kiln key text acquisition module; B2: Clean and standardize the second key text data; B3: After cleaning the second key text, integrate it into the first performance data.

[0010] Preferably, the intelligent quality analysis model for the rotary kiln specifically includes: Based on the first temperature data and the first performance data, the key texts are classified to obtain the analysis points corresponding to the key texts. The analysis points corresponding to the key texts are the target knowledge domains corresponding to the key texts. The target knowledge domains include the temperature information analysis domain, the gas concentration analysis domain, and the physical information analysis domain. In the preset analysis database, the rotary kiln quality intelligent analysis model corresponding to the analysis points is obtained. The preset analysis database is used to store the correspondence between the analysis points and the rotary kiln quality intelligent analysis model.

[0011] Preferably, the step of acquiring the rotary kiln quality intelligent analysis model corresponding to the key analysis points involves, based on the rotary kiln quality intelligent analysis model, acquiring the first temperature evaluation value corresponding to the first key text through the first temperature data, and acquiring the first performance evaluation value corresponding to the second key text through the first performance data before constructing the rotary kiln quality intelligent analysis model. Specifically, this includes: acquiring the analysis dataset corresponding to the target knowledge domain; acquiring the target knowledge graph corresponding to the target knowledge domain based on the analysis dataset; and constructing the rotary kiln quality intelligent analysis model based on the target knowledge graph. Acquiring the analysis dataset corresponding to the target knowledge domain specifically includes: acquiring the analysis dataset through time-featured text and data acquisition methods, including web crawling and feature word filtering; the analysis dataset includes a temperature information analysis dataset, a gas concentration analysis dataset, and a physical information analysis dataset.

[0012] Preferably, the rotary kiln quality intelligent analysis model is used to obtain the first temperature evaluation value corresponding to the first key text and the first performance evaluation value corresponding to the second key text. The first temperature evaluation value corresponding to the first key text is obtained based on the temperature information analysis dataset and the gas concentration analysis dataset. The specific analysis formula is as follows: , Where T i Th represents the first temperature assessment value of the i-th time feature text of the rotary kiln. i Tk represents the kiln head flame temperature fluctuation value of the i-th time feature text. i Tf represents the kiln tail gas temperature fluctuation value of the i-th time feature text. i Tc represents the average calcination zone temperature of the i-th time-feature text. i This represents the average temperature of the rotary kiln shell for the i-th time-feature text. This represents the average temperature of the calcination zone in the rotary kiln. Qt represents the average temperature of the rotary kiln shell. i Qh represents the fluctuation value of combustion gas concentration in the i-th time feature text. i Qp represents the oxygen concentration fluctuation value in the kiln tail smoke chamber of the i-th time feature text. i Let represent the hazard gas concentration fluctuation value of the i-th time feature text, and e represent the natural constant; the first performance evaluation value corresponding to the second key text is obtained based on the physical information analysis dataset, and its specific analysis formula is as follows: , Where C represents the total amount of material in the rotary kiln, C 承 P represents the maximum amount of material the rotary kiln can handle, and P represents the heating output power of the rotary kiln. 预 R represents the preset heating output power of the rotary kiln, and R represents the rotation speed of the rotary kiln.

[0013] Preferably, the comprehensive temperature control index is obtained by comprehensively analyzing the rotary kiln heating situation based on the first temperature assessment value, the first concentration assessment value, and the first performance assessment value. The specific calculation formula is as follows: , Where P represents the comprehensive temperature control index of the rotary kiln in the time feature text, σ represents the standard deviation of the first temperature assessment value in the control time region, ι represents the average value of the first temperature assessment value in the control time region, and T i Let En represent the first temperature assessment value for the i-th characteristic time region, let e represent the first performance assessment value for the rotary kiln, and let π and e represent natural constants.

[0014] Preferably, the high-temperature reaction and cooling judgment module includes a rotary kiln temperature judgment unit and a temperature anomaly detection unit. The rotary kiln temperature judgment unit establishes a preset value Ppre of the comprehensive temperature control index based on the comprehensive temperature control index. If P ≥ Ppre 预 If the comprehensive temperature control index of the rotary kiln at that time is greater than or equal to the preset value of the comprehensive temperature control index, then the rotary kiln temperature setting is reasonable, and the rotary kiln will continue to operate according to the original key text, and the original key text will be set as the reference text. If P < P 预 This indicates that the comprehensive temperature control index of the rotary kiln at this time feature text is less than the preset value of the comprehensive temperature control index. Therefore, the rotary kiln temperature setting is unreasonable, and an abnormal temperature value has occurred. It is necessary to locate the location of the temperature anomaly. The temperature anomaly search unit is used to search for temperature anomalies at different locations within the rotary kiln and to set temperature anomaly thresholds for different locations. The rotary kiln locations include the preheating zone, calcination zone, and cooling zone. The specific formula for calculating the temperature anomaly value is: η=1-|PP 预 |×(1+φ), where P represents the comprehensive temperature control index of the rotary kiln in the time feature text, P 预 This represents the preset value of the comprehensive temperature control index. φ represents the comprehensive application adjustment parameter of the rotary kiln temperature corresponding to different rotary kiln positions. When the abnormal temperature value exceeds the temperature abnormality threshold, it indicates that a temperature abnormality has occurred at that position, and the system will issue an alarm. If an abnormal temperature value occurs in the preheating zone, the rotary kiln operation needs to be stopped immediately, and the material flow should be checked to ensure that the material is evenly distributed in the preheating zone. The flue gas flow rate and temperature should be adjusted according to the actual situation. If an abnormal temperature value occurs in the calcination zone, the movement speed of the material in the rotary kiln needs to be adjusted in a timely manner, and the ratio of fuel quantity and air quantity should be adjusted according to fuel characteristics and production needs. If an abnormal temperature value occurs in the cooling section, the cooling medium flow rate needs to be increased to improve cooling efficiency.

[0015] The technical effects and advantages of this invention are as follows: 1. This invention divides the material processing time in a rotary kiln using a time-feature text segmentation module, enabling refined monitoring of the rotary kiln temperature. Data analysis for each time-feature text can be performed independently, allowing the system to more accurately capture subtle changes in the rotary kiln over different time periods, providing more accurate data support for subsequent early warning and evaluation. Based on the time-feature text segmentation, a first key text and a second key text are selected, and the key texts are preprocessed to obtain the corresponding first temperature data and first performance data. Then, through the rotary kiln quality intelligent analysis model, the first temperature evaluation value corresponding to the first key text and the first performance evaluation value corresponding to the second key text are obtained. By importing the control algorithm, the operating status of the rotary kiln is precisely controlled, thereby improving product quality and production efficiency. Real-time monitoring ensures stable operation of the system under complex working conditions. 2. The high-temperature reaction and cooling judgment module judges the temperature at different locations in the rotary kiln and identifies anomalies. If an anomaly occurs in the preheating zone, the rotary kiln must be stopped immediately, and the material flow must be checked to ensure uniform distribution. The flue gas flow rate and temperature should be adjusted according to the actual situation. If an anomaly occurs in the calcination zone, the material movement speed within the rotary kiln must be adjusted promptly, and the fuel and air ratios should be adjusted according to fuel characteristics and production requirements. If an anomaly occurs in the cooling section, the cooling medium flow rate must be increased to improve cooling efficiency. By precisely controlling the temperature and smoke concentration within the rotary kiln, the stable operation of the rotary kiln is ensured, production efficiency is improved, and manual intervention and operation are reduced through automated control and intelligent management, thus lowering labor costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a flowchart of the system operation of the present invention. Detailed Implementation

[0018] 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.

[0019] As attached Figure 1The diagram illustrates an automated intelligent control system for high-temperature reaction and cooling in a rotary kiln, comprising a time-feature text segmentation module, a rotary kiln key text acquisition module, a rotary kiln key text preprocessing module, a rotary kiln key text analysis module, a comprehensive temperature control module, a high-temperature reaction and cooling judgment module, and a human-computer interaction module.

[0020] The time feature text segmentation module sets the material processing time in the rotary kiln as the control time region, and divides the control time region into various time feature texts, denoted as 1, 2, 3...n, by equal time segmentation.

[0021] In this embodiment, it should be specifically explained that the time feature text division module takes the time when the material enters from one end of the rotary kiln as the starting time, and the processing time when the material gradually moves from the starting time to the other end through the rotation of the rotary kiln as the control time area. The time division of each time feature text is selected according to the actual needs, and the appropriate division time precision is selected, including every hour, every minute, every half minute, every second, and every half second.

[0022] The rotary kiln key text acquisition module selects the first key text based on time-featured text and acquires the second key text, including the rotary kiln temperature information acquisition unit, the rotary kiln gas concentration acquisition unit, the rotary kiln physical information acquisition unit, and the key text acquisition unit.

[0023] In this embodiment, it is necessary to specifically explain that the rotary kiln key text acquisition module collects data and acquires key text based on time-divided time feature texts. Infrared thermal imaging technology is used to display the real-time temperature status of the rotary kiln shell, forming a realistic dynamic kiln operating condition. Real-time acquisition of rotary kiln temperature information is achieved, and real-time monitoring of the rotary kiln gas concentration is conducted using a smoke concentration monitor. Specifically, this includes: Rotary kiln temperature information acquisition unit: used to collect rotary kiln temperature information, including the temperature of the firing zone, the temperature of the flame at the kiln head, the temperature of the gas in the smoke chamber at the kiln tail, and the temperature of the rotary kiln shell. Rotary kiln gas concentration acquisition unit: used to acquire the gas concentration of the rotary kiln, including the concentration of combustion gases, the oxygen concentration in the kiln tail flue, and the concentration of harmful gases; Rotary kiln physical information acquisition unit: used to collect physical information of the rotary kiln, including rotary kiln rotation speed, total material output, and heating output power; Key text acquisition unit: Classifies and summarizes the data acquired by the rotary kiln temperature information acquisition unit, the rotary kiln gas concentration acquisition unit, and the rotary kiln physical information acquisition unit. The data acquired by the rotary kiln temperature information acquisition unit and the rotary kiln gas concentration acquisition unit are integrated into the first key text, and the data acquired by the rotary kiln physical information acquisition unit are integrated into the second key text. The second key text is the key text selected after the first key text.

[0024] The rotary kiln key text preprocessing module is used to receive and preprocess key text. The preprocessing operation is used to obtain the first temperature data corresponding to the first key text, and to preprocess the obtained second key text. The preprocessing operation is used to obtain the first performance data corresponding to the second key text.

[0025] In this embodiment, it should be specifically noted that the rotary kiln key text preprocessing module includes a first key text preprocessing unit and a second key text preprocessing unit. The first key text preprocessing unit is used to preprocess the first key text to obtain the first temperature data. The specific acquisition process is as follows: A1: Receive the first key text transmitted by the rotary kiln key text acquisition module; A2: Clean and standardize the first key text data; A3: Obtain the average and fluctuation values ​​of rotary kiln temperature based on the standardized first key text, and integrate them into the first temperature data, including the kiln head flame temperature fluctuation value, the kiln tail gas temperature fluctuation value, the average temperature of the calcination zone, the average temperature of the rotary kiln shell, the fluctuation value of combustion gas concentration, the fluctuation value of oxygen concentration in the kiln tail smoke chamber, and the fluctuation value of harmful gas concentration. The second key text preprocessing unit is used to preprocess the second key text to obtain the first performance data. The specific acquisition process is as follows: B1: Receive the second key text transmitted by the rotary kiln key text acquisition module; B2: Clean and standardize the second key text data; B3: After cleaning the second key text, integrate it into the first performance data.

[0026] The rotary kiln key text analysis module is used to analyze key texts, obtain the rotary kiln quality intelligent analysis model, and obtain the first temperature evaluation value corresponding to the first key text and the first performance evaluation value corresponding to the second key text based on the first temperature data and the first performance data.

[0027] In this embodiment, the intelligent quality analysis model of the rotary kiln needs to be specifically explained, which includes: Based on the first temperature data and the first performance data, the key texts are classified to obtain the analysis points corresponding to the key texts. The analysis points corresponding to the key texts are the target knowledge domains corresponding to the key texts. The target knowledge domains include the temperature information analysis domain, the gas concentration analysis domain, and the physical information analysis domain. In the preset analysis database, the rotary kiln quality intelligent analysis model corresponding to the analysis points is obtained. The preset analysis database is used to store the correspondence between the analysis points and the rotary kiln quality intelligent analysis model.

[0028] Furthermore, the intelligent analysis model for rotary kiln quality corresponding to the key analysis points is obtained. Based on the intelligent analysis model, a control algorithm is imported to control the operating state of the rotary kiln. Before obtaining the first temperature evaluation value corresponding to the first key text through the first temperature data and the first performance evaluation value corresponding to the second key text through the first performance data, the intelligent analysis model for rotary kiln quality is constructed. Specifically, this includes: obtaining the analysis dataset corresponding to the target knowledge domain; obtaining the target knowledge graph corresponding to the target knowledge domain based on the analysis dataset; and constructing the intelligent analysis model for rotary kiln quality based on the target knowledge graph. Obtaining the analysis dataset corresponding to the target knowledge domain specifically includes: obtaining the analysis dataset through time-featured text and data collection methods, including web crawling and feature word filtering; the analysis dataset includes a temperature information analysis dataset, a gas concentration analysis dataset, and a physical information analysis dataset.

[0029] The rotary kiln key text analysis module analyzes the key text to obtain the rotary kiln quality intelligent analysis model. Based on the rotary kiln quality intelligent analysis model, it obtains the first temperature evaluation value corresponding to the first key text and the first performance evaluation value corresponding to the second key text through the first temperature data and the first performance data.

[0030] In this embodiment, it is necessary to specifically explain that the first temperature evaluation value corresponding to the first key text and the first performance evaluation value corresponding to the second key text are obtained through the rotary kiln quality intelligent analysis model. The first temperature evaluation value corresponding to the first key text is obtained based on the temperature information analysis dataset and the gas concentration analysis dataset. The specific analysis formula is as follows: , Where T i Th represents the first temperature assessment value of the i-th time feature text of the rotary kiln. i Tk represents the kiln head flame temperature fluctuation value of the i-th time feature text. i Tf represents the kiln tail gas temperature fluctuation value of the i-th time feature text. i Tc represents the average calcination zone temperature of the i-th time-feature text. i This represents the average temperature of the rotary kiln shell for the i-th time-feature text. This represents the average temperature of the calcination zone in the rotary kiln. Qt represents the average temperature of the rotary kiln shell. i Qh represents the fluctuation value of combustion gas concentration in the i-th time feature text. i Qp represents the oxygen concentration fluctuation value in the kiln tail smoke chamber of the i-th time feature text. i Let represent the hazard gas concentration fluctuation value of the i-th time feature text, and e represent the natural constant; the first performance evaluation value corresponding to the second key text is obtained based on the physical information analysis dataset, and its specific analysis formula is as follows: , Where C represents the total amount of material in the rotary kiln, C 承 P represents the maximum amount of material the rotary kiln can handle, and P represents the heating output power of the rotary kiln. 预 R represents the preset heating output power of the rotary kiln, and R represents the rotation speed of the rotary kiln.

[0031] The integrated temperature control module obtains the integrated temperature control index based on the first temperature evaluation value corresponding to the first key text and the first performance evaluation value corresponding to the second key text.

[0032] In this embodiment, it should be specifically explained that the comprehensive temperature control index is based on a comprehensive analysis of the rotary kiln heating situation using a first temperature assessment value, a first concentration assessment value, and a first performance assessment value. The specific calculation formula for the comprehensive temperature control index is as follows: , Where P represents the comprehensive temperature control index of the rotary kiln in the time feature text, σ represents the standard deviation of the first temperature assessment value in the control time region, ι represents the average value of the first temperature assessment value in the control time region, and T i Let En represent the first temperature assessment value for the i-th characteristic time region, let e represent the first performance assessment value for the rotary kiln, and let π and e represent natural constants.

[0033] The high-temperature reaction and cooling judgment module adjusts and controls the temperature of the rotary kiln based on a comprehensive temperature control index.

[0034] In this embodiment, it should be specifically explained that the high-temperature reaction and cooling judgment module includes a rotary kiln temperature judgment unit and a temperature anomaly detection unit. The rotary kiln temperature judgment unit establishes a preset value Ppre of the comprehensive temperature control index based on the comprehensive temperature control index. If P ≥ Ppre 预 If the comprehensive temperature control index of the rotary kiln at that time is greater than or equal to the preset value of the comprehensive temperature control index, then the rotary kiln temperature setting is reasonable, and the rotary kiln will continue to operate according to the original key text, and the original key text will be set as the reference text. If P < P预 This indicates that the comprehensive temperature control index of the rotary kiln at this time feature text is less than the preset value of the comprehensive temperature control index. Therefore, the rotary kiln temperature setting is unreasonable, and an abnormal temperature value has occurred. It is necessary to locate the location of the temperature anomaly. The temperature anomaly search unit is used to search for temperature anomalies at different locations within the rotary kiln and to set temperature anomaly thresholds for different locations. The rotary kiln locations include the preheating zone, calcination zone, and cooling zone. The specific formula for calculating the temperature anomaly value is: η=1-|PP 预 |×(1+φ), where P represents the comprehensive temperature control index of the rotary kiln in the time feature text, P 预 This represents the preset value of the comprehensive temperature control index. φ represents the comprehensive application adjustment parameter of the rotary kiln temperature corresponding to different rotary kiln positions. When the abnormal temperature value exceeds the temperature abnormality threshold, it indicates that a temperature abnormality has occurred at that position, and the system will issue an alarm. If an abnormal temperature value occurs in the preheating zone, the rotary kiln operation needs to be stopped immediately, and the material flow should be checked to ensure that the material is evenly distributed in the preheating zone. The flue gas flow rate and temperature should be adjusted according to the actual situation. If an abnormal temperature value occurs in the calcination zone, the movement speed of the material in the rotary kiln needs to be adjusted in a timely manner, and the ratio of fuel quantity and air quantity should be adjusted according to fuel characteristics and production needs. If an abnormal temperature value occurs in the cooling section, the cooling medium flow rate needs to be increased to improve cooling efficiency.

[0035] The human-computer interaction module sends the judgment results to the administrator's user terminal according to a preset summary method based on the first temperature assessment value, the first performance assessment value, and the comprehensive temperature control index.

[0036] In this embodiment, it is necessary to specifically explain that a warning is issued and management personnel are notified regarding the time-related text indicating an unreasonable rotary kiln temperature setting. The time-related text indicating a reasonable rotary kiln temperature setting is stored, and the original key text is set as a reference text for the time-related text indicating an unreasonable rotary kiln temperature setting. Management personnel can view this information through the system's user information terminal. The terminal display screen will show the key analysis process of the rotary kiln and the rotary kiln temperature control status, marking any abnormal analysis data. Management personnel can optimize the rotary kiln setting parameters in a timely manner based on the analysis data and improve the temperature control effect according to the reference text. The summary is displayed on the terminal display screen and presented to management personnel in a preset summary format, which includes any one of the following: report summary, image summary, and chart summary.

[0037] This invention divides the material processing time in a rotary kiln using a time-feature text segmentation module, enabling refined monitoring of the kiln temperature. Data analysis for each time-feature text can be performed independently, allowing the system to more accurately capture subtle changes in the rotary kiln across different time periods, providing more accurate data support for subsequent early warning and evaluation. Based on the time-feature text segmentation, a first key text and a second key text are selected and preprocessed to obtain the corresponding first temperature and first performance data. Then, through a rotary kiln quality intelligent analysis model, the first temperature evaluation value corresponding to the first key text and the first performance evaluation value corresponding to the second key text are obtained. These values ​​are then imported into a control algorithm to precisely control the rotary kiln's operating status, thereby improving product quality and production efficiency. Real-time monitoring ensures stable operation of the system under complex working conditions. The high-temperature reaction and cooling judgment module assesses and identifies anomalies at different locations within the rotary kiln. If an anomaly occurs in the preheating zone, the rotary kiln must be stopped immediately, and the material flow must be checked to ensure uniform distribution. The flue gas flow rate and temperature should be adjusted accordingly. If an anomaly occurs in the calcination zone, the material's movement speed within the rotary kiln must be adjusted promptly, and the fuel and air ratios adjusted based on fuel characteristics and production requirements. If an anomaly occurs in the cooling section, the cooling medium flow rate must be increased to improve cooling efficiency. By precisely controlling the temperature and smoke concentration within the rotary kiln, stable operation is ensured, production efficiency is improved, and automated control and intelligent management reduce manual intervention and operation, thereby lowering labor costs.

[0038] like Figure 2 This embodiment provides an operational flow of an automated intelligent control system for high-temperature reaction and cooling in a rotary kiln, including the following steps: S1: Set the material processing time in the rotary kiln as the control time region, and divide the control time region into various time feature texts by dividing it into equal time regions. S2: Select the first and second key texts based on time-related text features; S3: Preprocess the first key text and the second key text to obtain the first temperature data and the first performance data; S4: Obtain the intelligent analysis model for rotary kiln quality, analyze key texts, and obtain the first temperature evaluation value and the first performance evaluation value; S5: Based on the first temperature evaluation value corresponding to the first key text and the first performance evaluation value corresponding to the second key text, obtain the comprehensive temperature control index; S6: Adjust and control the temperature of the rotary kiln based on the comprehensive temperature control index; S7: Based on the first temperature assessment value, the first performance assessment value, and the comprehensive temperature control index, the judgment result is sent to the administrator user terminal according to the preset summary method.

[0039] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated intelligent control system for high-temperature reaction and cooling in a rotary kiln, comprising a system operation database, a system central processing unit, and a user information terminal, characterized in that, It also includes a time-feature text segmentation module, a rotary kiln key text acquisition module, a rotary kiln key text preprocessing module, a rotary kiln key text analysis module, a comprehensive temperature control module, a high-temperature reaction and cooling judgment module, and a human-computer interaction module. The system operating database includes all data text of the high-temperature reaction and cooling intelligent control system, and collects information text output by each module in real time. The system central processing unit is used to centrally control the information text instructions output throughout the entire control process. The user information terminal is a device for receiving information output from the high-temperature reaction and cooling intelligent control system. Time Feature Text Segmentation Module: The material processing time in the rotary kiln is set as the control time region, and the control time region is divided into various time feature texts by equal time division, denoted as 1, 2, 3...n; Rotary kiln key text acquisition module: Selects the first key text based on time feature text and acquires the second key text, including rotary kiln temperature information acquisition unit, rotary kiln gas concentration acquisition unit, rotary kiln physical information acquisition unit and key text acquisition unit; Rotary kiln key text preprocessing module: receives and preprocesses key text. The preprocessing operation is used to obtain the first temperature data corresponding to the first key text. It also preprocesses the obtained second key text. The preprocessing operation is used to obtain the first performance data corresponding to the second key text. Rotary kiln key text analysis module: Analyzes key texts to obtain the intelligent analysis model of rotary kiln quality. Based on the intelligent analysis model of rotary kiln quality, it obtains the first temperature evaluation value corresponding to the first key text and the first performance evaluation value corresponding to the second key text through the first temperature data and the first performance data. Integrated temperature control module: Based on the first temperature evaluation value corresponding to the first key text and the first performance evaluation value corresponding to the second key text, obtain the integrated temperature control index; High-temperature reaction and cooling judgment module: Based on the comprehensive temperature control index, the temperature of the rotary kiln is adjusted and controlled; Human-computer interaction module: Based on the first temperature assessment value, the first performance assessment value, and the comprehensive temperature control index, the judgment results are sent to the management personnel's user terminal according to the preset summary method.

2. The intelligent control system for high-temperature reaction and cooling of a rotary kiln based on automation as described in claim 1, characterized in that: The time feature text segmentation module takes the time when the material enters from one end of the rotary kiln as the starting time, and the processing time when the material gradually moves from the starting time to the other end through the rotation of the rotary kiln as the control time area. The time segmentation of each time feature text is selected according to the actual needs, and the appropriate segmentation time precision is selected, including every hour, every minute, every half minute, every second, and every half second.

3. The intelligent control system for high-temperature reaction and cooling of a rotary kiln based on automation as described in claim 1, characterized in that: The rotary kiln key text acquisition module, based on time-divided time feature texts, collects data from each time feature text and acquires key texts, specifically including: Rotary kiln temperature information acquisition unit: used to collect rotary kiln temperature information, including the temperature of the firing zone, the temperature of the flame at the kiln head, the temperature of the gas in the smoke chamber at the kiln tail, and the temperature of the rotary kiln shell. Rotary kiln gas concentration acquisition unit: used to acquire the gas concentration of the rotary kiln, including the concentration of combustion gases, the oxygen concentration in the kiln tail flue, and the concentration of harmful gases; Rotary kiln physical information acquisition unit: used to collect physical information of the rotary kiln, including rotary kiln rotation speed, total material output, and heating output power; Key text acquisition unit: Classifies and summarizes the data acquired by the rotary kiln temperature information acquisition unit, the rotary kiln gas concentration acquisition unit, and the rotary kiln physical information acquisition unit. The data acquired by the rotary kiln temperature information acquisition unit and the rotary kiln gas concentration acquisition unit are integrated into the first key text, and the data acquired by the rotary kiln physical information acquisition unit are integrated into the second key text. The second key text is the key text selected after the first key text.

4. The intelligent control system for high-temperature reaction and cooling of a rotary kiln based on automation according to claim 1, characterized in that: The rotary kiln key text preprocessing module includes a first key text preprocessing unit and a second key text preprocessing unit. The first key text preprocessing unit is used to preprocess the first key text to obtain the first temperature data. The specific acquisition process is as follows: A1: Receive the first key text transmitted by the rotary kiln key text acquisition module; A2: Clean and standardize the first key text data; A3: Obtain the average and fluctuation values ​​of rotary kiln temperature based on the standardized first key text, and integrate them into the first temperature data, including the kiln head flame temperature fluctuation value, the kiln tail gas temperature fluctuation value, the average temperature of the calcination zone, the average temperature of the rotary kiln shell, the fluctuation value of combustion gas concentration, the fluctuation value of oxygen concentration in the kiln tail smoke chamber, and the fluctuation value of harmful gas concentration. The second key text preprocessing unit is used to preprocess the second key text to obtain the first performance data. The specific acquisition process is as follows: B1: Receive the second key text transmitted by the rotary kiln key text acquisition module; B2: Clean and standardize the second key text data; B3: After cleaning the second key text, integrate it into the first performance data.

5. The intelligent control system for high-temperature reaction and cooling of a rotary kiln based on automation according to claim 1, characterized in that: The intelligent quality analysis model for the rotary kiln specifically includes: Based on the first temperature data and the first performance data, the key texts are classified to obtain the analysis points corresponding to the key texts. The analysis points corresponding to the key texts are the target knowledge domains corresponding to the key texts. The target knowledge domains include the temperature information analysis domain, the gas concentration analysis domain, and the physical information analysis domain. In the preset analysis database, the rotary kiln quality intelligent analysis model corresponding to the analysis points is obtained. The preset analysis database is used to store the correspondence between the analysis points and the rotary kiln quality intelligent analysis model.

6. The intelligent control system for high-temperature reaction and cooling of a rotary kiln based on automation according to claim 5, characterized in that: The process of acquiring the intelligent analysis model of rotary kiln quality corresponding to the key analysis points involves importing a control algorithm based on the model to control the rotary kiln's operating state. Before acquiring the first temperature evaluation value corresponding to the first key text using the first temperature data and the first performance evaluation value corresponding to the second key text using the first performance data, the intelligent analysis model of rotary kiln quality is constructed. Specifically, this includes: acquiring the analysis dataset corresponding to the target knowledge domain; acquiring the target knowledge graph corresponding to the target knowledge domain based on the analysis dataset; and constructing the intelligent analysis model of rotary kiln quality based on the target knowledge graph. Acquiring the analysis dataset corresponding to the target knowledge domain specifically includes: acquiring the analysis dataset through time-featured text and data collection methods, including web crawling and feature word filtering; the analysis dataset includes a temperature information analysis dataset, a gas concentration analysis dataset, and a physical information analysis dataset.

7. The intelligent control system for high-temperature reaction and cooling of a rotary kiln based on automation according to claim 1, characterized in that: The rotary kiln quality intelligent analysis model obtains the first temperature evaluation value corresponding to the first key text and the first performance evaluation value corresponding to the second key text. Based on the temperature information analysis dataset and the gas concentration analysis dataset, the first temperature evaluation value corresponding to the first key text is obtained, and its specific analysis formula is as follows: ， Where T i Th represents the first temperature assessment value of the i-th time feature text of the rotary kiln. i Tk represents the kiln head flame temperature fluctuation value of the i-th time feature text. i Tf represents the kiln tail gas temperature fluctuation value of the i-th time feature text. i Tc represents the average calcination zone temperature of the i-th time-feature text. i This represents the average temperature of the rotary kiln shell for the i-th time-feature text. This represents the average temperature of the calcination zone in the rotary kiln. Qt represents the average temperature of the rotary kiln shell. i Qh represents the fluctuation value of combustion gas concentration in the i-th time feature text. i Qp represents the oxygen concentration fluctuation value in the kiln tail smoke chamber of the i-th time feature text. i Let represent the hazard gas concentration fluctuation value of the i-th time feature text, and e represent the natural constant; the first performance evaluation value corresponding to the second key text is obtained based on the physical information analysis dataset, and its specific analysis formula is as follows: ， Where C represents the total amount of material in the rotary kiln, C 承 P represents the maximum amount of material the rotary kiln can handle, and P represents the heating output power of the rotary kiln. 预 R represents the preset heating output power of the rotary kiln, and R represents the rotation speed of the rotary kiln.

8. The intelligent control system for high-temperature reaction and cooling of a rotary kiln based on automation according to claim 1, characterized in that: The comprehensive temperature control index is derived by comprehensively analyzing the rotary kiln heating situation based on the first temperature assessment value, the first concentration assessment value, and the first performance assessment value. The specific calculation formula for the comprehensive temperature control index is as follows: ， Where P represents the comprehensive temperature control index of the rotary kiln in the time feature text, σ represents the standard deviation of the first temperature assessment value in the control time region, ι represents the average value of the first temperature assessment value in the control time region, and T i Let En represent the first temperature assessment value for the i-th characteristic time region, let e represent the first performance assessment value for the rotary kiln, and let π and e represent natural constants.

9. The intelligent control system for high-temperature reaction and cooling of a rotary kiln based on automation according to claim 1, characterized in that: The high-temperature reaction and cooling judgment module includes a rotary kiln temperature judgment unit and a temperature anomaly detection unit. The rotary kiln temperature judgment unit establishes a preset value P of the comprehensive temperature control index based on the comprehensive temperature control index. 预 If P≥P 预 If the comprehensive temperature control index of the rotary kiln at that time is greater than or equal to the preset value of the comprehensive temperature control index, then the rotary kiln temperature setting is reasonable, and the rotary kiln will continue to operate according to the original key text, and the original key text will be set as the reference text. If P < P 预 This indicates that the comprehensive temperature control index of the rotary kiln at this time feature text is less than the preset value of the comprehensive temperature control index. Therefore, the rotary kiln temperature setting is unreasonable, and an abnormal temperature value occurs in the rotary kiln. The system then locates the location of the temperature anomaly. The temperature anomaly search unit is used to search for temperature anomalies at different locations in the rotary kiln and sets temperature anomaly thresholds for different locations. The rotary kiln locations include the preheating zone, calcination zone, and cooling zone. The specific formula for calculating the temperature anomaly value is: η=1-|PP 预 |×(1+φ), where P represents the comprehensive temperature control index of the rotary kiln in the time feature text, P 预 This represents the preset value of the comprehensive temperature control index, and φ represents the comprehensive application adjustment parameter of the rotary kiln temperature corresponding to different rotary kiln positions.

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