CN119103853A - Rotary Kiln Coal Powder Injection Control System - Google Patents
Rotary Kiln Coal Powder Injection Control System Download PDFInfo
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- CN119103853A CN119103853A CN202411598195.4A CN202411598195A CN119103853A CN 119103853 A CN119103853 A CN 119103853A CN 202411598195 A CN202411598195 A CN 202411598195A CN 119103853 A CN119103853 A CN 119103853A
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- 238000002347 injection Methods 0.000 title claims abstract description 190
- 239000007924 injection Substances 0.000 title claims abstract description 190
- 239000003245 coal Substances 0.000 title claims abstract description 148
- 239000000843 powder Substances 0.000 title claims abstract description 35
- 238000011156 evaluation Methods 0.000 claims abstract description 61
- 230000000694 effects Effects 0.000 claims abstract description 54
- 238000002485 combustion reaction Methods 0.000 claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims abstract description 24
- 238000000605 extraction Methods 0.000 claims abstract description 23
- 238000004458 analytical method Methods 0.000 claims abstract description 20
- 238000007405 data analysis Methods 0.000 claims abstract description 16
- 238000005516 engineering process Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 70
- 238000004364 calculation method Methods 0.000 claims description 37
- 229910052757 nitrogen Inorganic materials 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 14
- 239000000284 extract Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000013480 data collection Methods 0.000 claims description 3
- 238000003709 image segmentation Methods 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims description 3
- 238000010223 real-time analysis Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 238000007726 management method Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 238000012384 transportation and delivery Methods 0.000 claims 1
- 239000002817 coal dust Substances 0.000 description 34
- 238000007664 blowing Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories or equipment specially adapted for rotary-drum furnaces
- F27B7/42—Arrangement of controlling, monitoring, alarm or like devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories or equipment specially adapted for rotary-drum furnaces
- F27B7/34—Arrangements of heating devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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- Regulation And Control Of Combustion (AREA)
Abstract
本发明涉及煤粉喷吹控制领域，且公开了回转窑煤粉喷吹控制系统，包括火焰图像采集模块、数据采集模块、特征提取模块、数据分析模块、控制分析模块、喷吹控制执行模块、效果评估模块以及结果反馈模块，通过图像处理技术对采集火焰图像进行数据特征提取，通过对采集的煤粉喷吹相关信息数据进行特征提取，再分析和监测煤粉的燃烧情况、窑内气氛以及煤粉喷吹状态的稳定，通过计算出控制偏差系数判断是否对煤粉喷吹参数进行控制调整，通过对控制调整结果进行监测和分析，评估煤粉喷吹的控制效果是否达到预期目标，再根据煤粉喷吹控制调整和效果评估结果自动生成煤粉喷吹控制调整报告向管理人员进行反馈。
The invention relates to the field of coal powder injection control, and discloses a rotary kiln coal powder injection control system, comprising a flame image acquisition module, a data acquisition module, a feature extraction module, a data analysis module, a control analysis module, an injection control execution module, an effect evaluation module and a result feedback module. The data feature of the collected flame image is extracted by image processing technology, and the feature of the collected coal powder injection related information data is extracted. Then, the combustion condition of the coal powder, the atmosphere in the kiln and the stability of the coal powder injection state are analyzed and monitored. By calculating the control deviation coefficient, it is determined whether the coal powder injection parameters are controlled and adjusted. By monitoring and analyzing the control adjustment results, it is evaluated whether the control effect of the coal powder injection reaches the expected goal. Then, according to the coal powder injection control adjustment and effect evaluation results, a coal powder injection control adjustment report is automatically generated to provide feedback to management personnel.
Description
Technical Field
The invention relates to the technical field of pulverized coal injection control, in particular to a pulverized coal injection control system of a rotary kiln.
Background
During operation of the rotary kiln, pulverized coal is injected into the kiln as fuel to provide heat. However, the pulverized coal injection process needs to be precisely controlled, otherwise, the operation efficiency and the product quality of the rotary kiln are affected, and therefore, in order to achieve precise control of the pulverized coal injection of the rotary kiln, an advanced control system is needed. The control system generally comprises a sensor, a controller and an actuator part, and can monitor the injection quantity, the injection speed and the injection pressure parameters of the coal dust in real time and accurately control the coal dust according to the parameters so as to ensure the stable operation of the rotary kiln and the stability of the product quality;
However, the above procedure still has the following drawbacks:
Firstly, the existing rotary kiln pulverized coal injection control system cannot comprehensively evaluate the state of rotary kiln pulverized coal injection through monitoring and collecting various parameters, and the effect of pulverized coal injection control adjustment is lack of evaluation and monitoring, so that the state of rotary kiln pulverized coal injection is always kept in a stable state, and therefore reliability and control precision are low;
Secondly, the existing pulverized coal injection control system of the rotary kiln generally lacks an intelligent control function, and cannot be adaptively adjusted according to the running state of the rotary kiln, the quality of pulverized coal and other factors, so that the pulverized coal injection effect is not ideal, and the combustion efficiency and the product quality are affected.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a pulverized coal injection control system of a rotary kiln, which aims to solve the problems in the background art.
The invention provides a technical scheme that a rotary kiln pulverized coal injection control system comprises:
The flame image acquisition module is used for acquiring flame images in real time by installing a camera at the position of the viewing hole, extracting flame image information characteristic data from the acquired flame images by an image processing technology, wherein the flame image information characteristic data comprises a flame shape change rate, a flame centroid position change, a flame color change rate and a flame brightness standard deviation, and transmitting the flame image information characteristic data to the data analysis module;
The data acquisition module is used for monitoring and acquiring coal dust injection related information data in real time through a sensor, wherein the data comprise coal dust injection value, kiln inner temperature value, pressure value in a pipeline and nitrogen flow value, and transmitting the acquired coal dust injection related information data to the feature extraction module;
The feature extraction module is used for extracting relevant feature parameters affecting the pulverized coal injection state from the collected pulverized coal injection related information data by carrying out feature extraction on the collected pulverized coal injection related information data, wherein the relevant feature parameters comprise a pulverized coal injection rate average value, a kiln temperature change average value, a pipeline pressure change average value and a nitrogen flow change average value, and transmitting the pulverized coal injection related information data after feature extraction to the data analysis module;
The data analysis module is used for obtaining a combustion state evaluation index by analyzing the flame image information characteristic data, monitoring the combustion condition of the coal powder and the stability of the atmosphere in the kiln, obtaining a blowing state evaluation index by analyzing the coal powder blowing related information data after the characteristic extraction, monitoring the stability of the coal powder blowing state and transmitting the data analysis result to the control analysis module;
The control analysis module is used for further analyzing the combustion stability evaluation index and the injection state stability evaluation index, calculating a control deviation coefficient and judging whether to control and adjust the coal dust injection parameters or not through the control deviation coefficient;
the injection control execution module automatically executes the control adjustment operation of the pulverized coal injection parameters through the control analysis result and transmits the control adjustment result to the effect evaluation module in real time;
the effect evaluation module is used for obtaining a control effect evaluation coefficient by monitoring and analyzing the control adjustment result and evaluating whether the control effect of the pulverized coal injection reaches an expected target or not through the control effect evaluation coefficient;
And the result feedback module is used for automatically generating a coal dust injection control adjustment report according to the coal dust injection control adjustment and effect evaluation results and feeding back the coal dust injection control adjustment report to the manager.
Preferably, the flame image acquisition module selects a high-temperature-resistant and smoke-resistant camera, installs the camera at the positions of the fire holes of the boiler and the burner, enables the camera lens to face the flame, adjusts camera parameters including exposure time and focal length, acquires a flame image until a clear flame image is acquired, and carries out pretreatment on the flame image by an image processing technology, wherein the flame image pretreatment process comprises gray level conversion, noise removal, contrast enhancement and image segmentation, and extracts and calculates the flame shape change rate, flame centroid position change, flame color change rate and flame brightness standard deviation from the pretreated flame image;
The calculation formula of the flame shape change rate is that ,Representing the area of the flame of the current frame,Representing the area of the flame of the previous frame;
the calculation formula of the flame centroid position change is that ,Representing the coordinates of the flame centroid of the current frame,Representing the coordinates of the flame centroid of the previous frame;
the calculation formula of the flame color change rate is that ,Representing the color component values of the current frame,Color component values representing a previous frame;
the calculation formula of the flame brightness standard deviation is ,Representing the image in positionIs used for the brightness value of the (c),The average brightness of the flame image is represented, M represents the number of lines of the image, and N represents the columns of the image.
Preferably, the specific collection mode of the data collection module is as follows:
The temperature sensor is arranged at the kiln head, kiln tail and decomposing furnace outlet of the rotary kiln to monitor and collect the temperature value in the kiln in real time;
The pulverized coal flow sensor is arranged on the pulverized coal conveying pipeline and is used for measuring and collecting the injection quantity value of pulverized coal in real time;
The pressure sensors are arranged at the outlets of the pulverized coal conveying pipeline and the blowing tank and are used for monitoring and collecting the pressure value in the pipeline in real time;
The nitrogen flow sensor is arranged on the nitrogen conveying pipeline and used for measuring and collecting the nitrogen flow value in real time.
Preferably, the feature extraction module performs feature change analysis by recording the continuously collected coal dust injection related information data for a period of time, and extracts and calculates a coal dust injection rate average value, a kiln temperature change average value, a pipeline pressure change average value and a nitrogen flow change average value;
The calculation formula of the average value of the pulverized coal injection rate is ,The pulverized coal injection value acquired for the mth time is represented, S represents the cross section area of a nozzle, and n represents the acquisition times;
The calculation formula of the average value of the temperature change in the kiln is ,Represents the temperature value in the kiln acquired for the mth time,Representing the temperature value in the kiln acquired for the m-1 th time;
The calculation formula of the average value of the pressure variation in the pipeline is ,Representing the pressure value in the pipeline for the mth acquisition,Representing the pressure value in the pipeline acquired for the m-1 th time;
the calculation formula of the average value of the nitrogen flow rate changes is ,Represents the nitrogen flow value acquired at the mth time,The nitrogen flow value for the m-1 th acquisition is shown.
Preferably, the data analysis module calculates the combustion state evaluation index by analyzing the flame image information characteristic data extracted from the continuous characteristic over a period of time by the calculation formula of,The rate of change of flame shape at time t is indicated,Indicating a change in flame centroid position at time t,The rate of change of flame color at time t is indicated,The standard deviation of flame brightness at time t is indicated,Representing the maximum rate of change of flame shape over a period of time,Representing the maximum value of the change in flame centroid position over a period of time,Representing the maximum rate of change of flame color over a period of time,Represents the maximum value of the standard deviation of flame brightness in a period of time, K represents the total moment,Is a weight coefficient;
The calculation formula for calculating the injection state evaluation index by analyzing the continuous pulverized coal injection related information data in a period of time is as follows ,The average value of the pulverized coal injection rate is shown,Represents the average value of the temperature change in the kiln,Representing the average value of the pressure change in the pipe,The average value of the nitrogen flow rate change is shown.
Preferably, the control analysis module realizes accurate adjustment of pulverized coal injection quantity by controlling deviation coefficient, and the calculation formula is as followsW represents a combustion state evaluation index, W represents a preset combustion state threshold, Z represents a injection state evaluation index, Z represents a preset injection state threshold,Is a weight coefficient;
By combining the control deviation coefficient X with a control deviation threshold value Comparing, if the deviation coefficient X is controlledControl deviation thresholdThe pulverized coal injection deviation state is stabilized within the range of the set target value, the pulverized coal injection parameter is not required to be adjusted, and if the deviation coefficient X is controlledControl deviation thresholdAnd indicating that the pulverized coal injection deviation state has larger deviation degree, adjusting pulverized coal injection parameters, and transmitting control execution instructions to the injection control execution module.
Preferably, the control and adjustment operation process of the injection control execution module comprises the steps of adjusting the pulverized coal injection quantity, changing the nitrogen flow and adjusting the injection pressure, realizing the accurate control of pulverized coal injection by executing the control and adjustment operation, and monitoring the change condition of parameters in the control process in real time.
Preferably, the effect evaluation module performs real-time analysis according to the received control adjustment result, and calculates a calculation formula of the control effect evaluation coefficient asIf the control effect evaluates the coefficient 0, The control effect of pulverized coal injection reaches the expected target, and if the control effect evaluates the coefficient And 0, z, the control effect of pulverized coal injection does not reach the expected target, fine adjustment is required to be continuously carried out on the pulverized coal injection parameters, and the coefficient value is estimated by monitoring the control effect in real time until the pulverized coal injection parameters are kept at the preset valueAnd stopping adjusting the pulverized coal injection parameters within the range.
The invention has the technical effects and advantages that:
According to the method, the data characteristic extraction is carried out on the collected flame image through an image processing technology, the data of the coal dust injection related information is monitored and collected in real time through a sensor, the characteristic extraction is carried out on the collected coal dust injection related information data, the analysis is carried out on the coal dust injection related information data after the characteristic extraction and the flame image information characteristic data, the combustion condition of coal dust, the atmosphere in a kiln and the stability of the coal dust injection state are monitored, whether the coal dust injection parameters are controlled and adjusted or not is judged through calculation of a control deviation coefficient, the control adjustment operation on the coal dust injection parameters is automatically carried out through the result of the control analysis, the control effect evaluation coefficient is obtained through monitoring and analysis on the control adjustment result, whether the control effect of the coal dust injection reaches an expected target is estimated through the control effect evaluation coefficient, and then the feedback is carried out on a coal dust injection control adjustment report automatically generated according to the coal dust injection control adjustment and effect evaluation result, the monitoring and the collection are facilitated, the state of the coal dust injection of the rotary kiln is comprehensively estimated and the coal dust injection control adjustment is carried out, the reliability and the control accuracy of the coal dust injection are improved, meanwhile, the self-adaptive coal dust adjustment effect of the rotary kiln is realized, the running quality and the coal dust injection control is improved through intelligent control operation and the control operation quality is realized.
Drawings
Fig. 1 is a block diagram showing the overall structure of the present invention.
FIG. 2 is a flow chart of the method steps of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made in detail and with reference to the drawings, wherein the configurations of the structures described in the following embodiments are merely illustrative, and the pulverized coal injection control system for a rotary kiln according to the present invention is not limited to the configurations described in the following embodiments, but all other embodiments obtained by a person skilled in the art without making any creative effort are within the scope of the present invention.
The invention provides a pulverized coal injection control system of a rotary kiln, which comprises the following components:
the flame image acquisition module is used for acquiring flame images in real time by installing a camera at the position of the viewing hole, extracting flame image information characteristic data from the acquired flame images by an image processing technology, wherein the flame image information characteristic data comprises a flame shape change rate, a flame centroid position change, a flame color change rate and a flame brightness standard deviation, and transmitting the flame image information characteristic data to the data analysis module.
In this embodiment, the flame image acquisition module selects a high temperature resistant and smoke resistant camera, installs the camera at the position of a viewing hole of a boiler and a burner, makes a camera lens face the flame, adjusts camera parameters including exposure time and focal length until a clear flame image is acquired, acquires the flame image, and performs preprocessing on the flame image by an image processing technology, wherein the flame image preprocessing process comprises gray level conversion, noise removal, contrast enhancement and image segmentation, and extracts and calculates a flame shape change rate, a flame centroid position change, a flame color change rate and a flame brightness standard deviation from the preprocessed flame image;
The calculation formula of the flame shape change rate is that ,Representing the area of the flame of the current frame,Representing the area of the flame of the previous frame;
the calculation formula of the flame centroid position change is that ,Representing the coordinates of the flame centroid of the current frame,Representing the coordinates of the flame centroid of the previous frame;
the calculation formula of the flame color change rate is that ,Representing the color component values of the current frame,Color component values representing a previous frame;
the calculation formula of the flame brightness standard deviation is ,Representing the image in positionIs used for the brightness value of the (c),The average brightness of the flame image is represented, M represents the number of lines of the image, and N represents the columns of the image.
The data acquisition module monitors and acquires the coal dust injection related information data including the coal dust injection value, the kiln temperature value, the pressure value in the pipeline and the nitrogen flow value in real time through the sensor, and transmits the acquired coal dust injection related information data to the feature extraction module.
In this embodiment, the specific collection manner of the data collection module is:
The temperature sensor is arranged at the kiln head, kiln tail and decomposing furnace outlet of the rotary kiln to monitor and collect the temperature value in the kiln in real time;
The pulverized coal flow sensor is arranged on the pulverized coal conveying pipeline and is used for measuring and collecting the injection quantity value of pulverized coal in real time;
The pressure sensors are arranged at the outlets of the pulverized coal conveying pipeline and the blowing tank and are used for monitoring and collecting the pressure value in the pipeline in real time;
The nitrogen flow sensor is arranged on the nitrogen conveying pipeline and used for measuring and collecting the nitrogen flow value in real time.
And the feature extraction module is used for extracting relevant feature parameters affecting the pulverized coal injection state from the collected pulverized coal injection related information data by carrying out feature extraction on the collected pulverized coal injection related information data, wherein the relevant feature parameters comprise a pulverized coal injection rate average value, a kiln temperature change average value, a pipeline pressure change average value and a nitrogen flow change average value, and transmitting the pulverized coal injection related information data after feature extraction to the data analysis module.
In this embodiment, the feature extraction module performs feature variation analysis by recording the continuously collected pulverized coal injection related information data for a period of time, and extracts and calculates a pulverized coal injection rate average value, a kiln temperature variation average value, a pipeline pressure variation average value and a nitrogen flow variation average value;
The calculation formula of the average value of the pulverized coal injection rate is ,The pulverized coal injection value acquired for the mth time is represented, S represents the cross section area of a nozzle, and n represents the acquisition times;
The calculation formula of the average value of the temperature change in the kiln is ,Represents the temperature value in the kiln acquired for the mth time,Representing the temperature value in the kiln acquired for the m-1 th time;
The calculation formula of the average value of the pressure variation in the pipeline is ,Representing the pressure value in the pipeline for the mth acquisition,Representing the pressure value in the pipeline acquired for the m-1 th time;
the calculation formula of the average value of the nitrogen flow rate changes is ,Represents the nitrogen flow value acquired at the mth time,The nitrogen flow value for the m-1 th acquisition is shown.
The data analysis module is used for obtaining a combustion state evaluation index by analyzing the flame image information characteristic data, monitoring the combustion condition of the coal powder and the stability of the atmosphere in the kiln, obtaining a blowing state evaluation index by analyzing the coal powder blowing related information data after the characteristic extraction, monitoring the stability of the coal powder blowing state and transmitting the data analysis result to the control analysis module.
In this embodiment, the data analysis module calculates the combustion state evaluation index by analyzing the flame image information feature data extracted from the continuous features over a period of time, where the calculation formula is,The rate of change of flame shape at time t is indicated,Indicating a change in flame centroid position at time t,The rate of change of flame color at time t is indicated,The standard deviation of flame brightness at time t is indicated,Representing the maximum rate of change of flame shape over a period of time,Representing the maximum value of the change in flame centroid position over a period of time,Representing the maximum rate of change of flame color over a period of time,Represents the maximum value of the standard deviation of flame brightness in a period of time, K represents the total moment,Is a weight coefficient;
The calculation formula for calculating the injection state evaluation index by analyzing the continuous pulverized coal injection related information data in a period of time is as follows ,The average value of the pulverized coal injection rate is shown,Represents the average value of the temperature change in the kiln,Representing the average value of the pressure change in the pipe,The average value of the nitrogen flow rate change is shown.
The control analysis module is used for further analyzing the combustion stability evaluation index and the injection state stability evaluation index, calculating a control deviation coefficient and judging whether to control and adjust the coal dust injection parameters according to the control deviation coefficient.
In this embodiment, the control analysis module realizes accurate adjustment of the pulverized coal injection amount by controlling the deviation coefficient, and the calculation formula is as followsW represents a combustion state evaluation index, W represents a preset combustion state threshold, Z represents a injection state evaluation index, Z represents a preset injection state threshold,Is a weight coefficient;
By combining the control deviation coefficient X with a control deviation threshold value Comparing, if the deviation coefficient X is controlledControl deviation thresholdThe pulverized coal injection deviation state is stabilized within the range of the set target value, the pulverized coal injection parameter is not required to be adjusted, and if the deviation coefficient X is controlledControl deviation thresholdAnd indicating that the pulverized coal injection deviation state has larger deviation degree, adjusting pulverized coal injection parameters, and transmitting control execution instructions to the injection control execution module.
And the injection control execution module is used for automatically executing the control and adjustment operation on the pulverized coal injection parameters through the control analysis result and transmitting the control and adjustment result to the effect evaluation module in real time.
In this embodiment, the control and adjustment operation process of the injection control execution module includes adjusting pulverized coal injection amount, changing nitrogen flow and adjusting injection pressure, realizing precise control of pulverized coal injection by executing control and adjustment operation, and monitoring the change condition of parameters in the control process in real time.
The effect evaluation module is used for obtaining a control effect evaluation coefficient by monitoring and analyzing the control adjustment result and evaluating whether the control effect of the pulverized coal injection reaches an expected target or not through the control effect evaluation coefficient
In this embodiment, the effect evaluation module performs real-time analysis according to the received control adjustment result, and calculates a calculation formula of the control effect evaluation coefficient asIf the control effect evaluates the coefficient 0, The control effect of pulverized coal injection reaches the expected target, and if the control effect evaluates the coefficient And 0, z, the control effect of pulverized coal injection does not reach the expected target, fine adjustment is required to be continuously carried out on the pulverized coal injection parameters, and the coefficient value is estimated by monitoring the control effect in real time until the pulverized coal injection parameters are kept at the preset valueAnd stopping adjusting the pulverized coal injection parameters within the range.
And the result feedback module is used for automatically generating a coal dust injection control adjustment report according to the coal dust injection control adjustment and effect evaluation results and feeding back the coal dust injection control adjustment report to the manager.
Referring to fig. 2, the rotary kiln pulverized coal injection control system includes the following steps:
S1, acquiring flame images in real time by installing a camera at a position of a viewing hole, and extracting flame image information characteristic data from the acquired flame images by an image processing technology, wherein the flame image information characteristic data comprises a flame shape change rate, a flame centroid position change, a flame color change rate and a flame brightness standard deviation;
s2, monitoring and collecting relevant information data of pulverized coal injection in real time through a sensor, wherein the relevant information data comprise an injection value of pulverized coal, a temperature value in a kiln, a pressure value in a pipeline and a nitrogen flow value;
S3, extracting relevant characteristic parameters affecting the pulverized coal injection state from the collected pulverized coal injection related information data by carrying out characteristic extraction, wherein the relevant characteristic parameters comprise a pulverized coal injection rate average value, a kiln temperature change average value, a pipeline pressure change average value and a nitrogen flow change average value;
s4, analyzing the flame image information characteristic data to obtain a combustion state evaluation index, monitoring the combustion condition of coal powder and the stability of the atmosphere in a kiln, and analyzing the coal powder injection related information data after characteristic extraction to obtain an injection state evaluation index and monitoring the stability of the coal powder injection state;
S5, further analyzing through the combustion stability evaluation index and the injection state stability evaluation index, calculating a control deviation coefficient, and judging whether to control and adjust the coal dust injection parameters through the control deviation coefficient;
s6, automatically executing control and adjustment operation on the pulverized coal injection parameters through a control analysis result;
S7, monitoring and analyzing a control adjustment result to obtain a control effect evaluation coefficient, and evaluating whether the control effect of pulverized coal injection reaches an expected target or not through the control effect evaluation coefficient;
And S8, automatically generating a pulverized coal injection control adjustment report according to the pulverized coal injection control adjustment and effect evaluation results, and feeding back the pulverized coal injection control adjustment report to a manager.
Finally, the foregoing description of the preferred embodiment of the invention is provided for the purpose of illustration only, and is not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
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| CN112646941A (en) * | 2020-12-14 | 2021-04-13 | 丁群芬 | Blast furnace coal powder injection intelligent regulation control method and system based on artificial intelligence |
| CN216079779U (en) * | 2021-08-19 | 2022-03-18 | 福建省世能科泰节能设备有限公司 | Multi-channel combustor for outer axial flow air partition adjustment of rotary kiln |
| WO2023029118A1 (en) * | 2021-09-06 | 2023-03-09 | 中国天楹股份有限公司 | Automatic combustion control (acc) method for waste incineration plant |
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