Sintering machine tail section data acquisition device, method, system, equipment and medium

Abstract

The application discloses a sintering machine tail section data acquisition device, method, system, equipment and medium, an infrared thermal imager is installed at the tail of the sintering machine and is used for collecting infrared images of the tail of the sintering machine; a tail multimodal sample server connected with the infrared thermal imager is used for determining a first region of interest and a second region of interest in the infrared images of the tail of the sintering machine; a first temperature value and a first image size value of the first region of interest are determined, and a second temperature value of the second region of interest is determined; a second image size value of the first region of interest in a preset sintering machine tail section false color map is acquired; if a temperature difference value between the first temperature value and the second temperature value is greater than a first preset threshold value, and a difference value between the first image size value and the second image size value is less than a second threshold value, then the acquisition time corresponding to the infrared images of the sintering machine is determined as a reference time for acquiring the sintering machine tail section data; and the sintering machine tail section data is quickly and accurately acquired based on the reference time.

Description

Technical Field

[0001] This application relates to the field of sintering machine technology, and more specifically, to a device, method, system, equipment, and medium for acquiring cross-sectional data of the tail section of a sintering machine. Background Technology

[0002] The tail section of the sintering machine is the end point of the sintering process. A wealth of information about the rationality of the sintering process and the quality of the sintered ore can be most directly and comprehensively reflected in the cross-section of the bed at the tail section of the sintering machine.

[0003] Currently, sintering plants still rely primarily on sintering operators to personally inspect the cross-section at the tail of the sintering machine periodically or when abnormalities are detected. The sintering machine control room is hundreds of meters from the tail, making the round trip extremely time-consuming. This not only results in immense labor intensity but also prevents continuous, real-time observation of the tail section. Furthermore, due to the harsh environment at the tail of the sintering machine and variations in the experience of sintering watchers, the judgment results for quality indicators such as FeO content grade are not very stable. Therefore, developing an intelligent identification method based on tail section information, eliminating environmental and human factors, and enabling timely predictions of sintering conditions and key quality indicators of the sintered ore, is of great significance for improving the quality of sintered ore.

[0004] In summary, how to quickly and accurately obtain the cross-sectional data of the tail section of the sintering machine is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide a device for acquiring cross-sectional data of the tail section of a sintering machine, which can, to a certain extent, solve the technical problem of how to quickly and accurately acquire cross-sectional data of the tail section of a sintering machine. This application also provides a method, system, device, and computer-readable storage medium for acquiring cross-sectional data of the tail section of a sintering machine.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A device for acquiring cross-sectional data of the tail section of a sintering machine, comprising:

[0008] An infrared thermal imager installed at the tail of the sintering machine is used to collect infrared images of the tail of the sintering machine.

[0009] A tail-end multimodal sample server connected to the infrared thermal imager is used to acquire infrared images of the sintering machine tail installed on the infrared thermal imager; determine a first region of interest and a second region of interest, wherein the first region of interest includes the cross-section or section of the current sintering cake, and the second region of interest includes the area of ​​the grate plate of the trolley adjacent to the current sintering cake of the fallen sintering cake trolley; determine a first temperature value and a first image size value of the first region of interest in the infrared image of the sintering machine tail, and determine a second temperature value of the second region of interest in the infrared image of the sintering machine tail; acquire the second image size value of the first region of interest in a preset pseudo-color image of the sintering machine tail section; if the temperature difference between the first temperature value and the second temperature value is greater than a first preset threshold, and the difference between the first image size value and the second image size value is less than a second threshold, then determine the acquisition time corresponding to the infrared image of the sintering machine as the reference time for acquiring the sintering machine tail section data; acquire the sintering machine tail section data based on the reference time.

[0010] Preferred options also include:

[0011] A visible light camera installed at the tail of the sintering machine and connected to the tail multimodal sample server is used to acquire visible light images of the tail of the sintering machine.

[0012] Accordingly, the tail-end multimodal sample server is also used to: determine the acquisition time of the visible light camera that is the same as or the first one located after the reference time based on the frame rate of the visible light camera; acquire the visible light image of the target sintering machine tail acquired by the visible light camera at the acquisition time; and use the visible light image of the target sintering machine tail as the cross-sectional data of the sintering machine tail.

[0013] Preferably, the infrared thermal imager, the visible light camera, the air-cooled and water-cooled protective cover, and the bracket constitute a binocular image acquisition device. The binocular image acquisition device is connected to the tail-end multimodal sample server via optical fiber and a first gigabit network card. The binocular image acquisition device is installed at the sealing cover of the tail end of the sintering machine, located in the center of the sealing cover, and its installation height is flush with the top of the cross-section. The air-cooled and water-cooled protective cover is made of rust-proof and corrosion-resistant stainless steel with a protection level greater than or equal to IP66. The temperature of the circulating water and compressed air in the plant is less than or equal to 40℃. Valves are installed at the compressed air inlet and the circulating water inlet and outlet. The pressure of both water and air is greater than or equal to 0.4 MPa, and the flow rate is greater than or equal to 0.4 m³ / h. 3 / min;

[0014] The infrared thermal imager has a maximum frame rate of 8 frames per second or more, the visible light camera has a maximum frame rate of 10 frames per second or more, and the visible light camera is a high-precision area array camera.

[0015] Preferred options also include:

[0016] The sintering PLC, connected to the tail multimodal sample server via a second gigabit network card and a switch, is used to collect sintering process parameters.

[0017] Accordingly, the tail-end multimodal sample server is also used to: determine the first acquisition time of the target sintering process parameters corresponding to the sintering cake at the reference time; acquire the target sintering process parameters from the sintering process parameters according to the first acquisition time; and use the target sintering process parameters as the tail section data of the sintering machine.

[0018] Preferably, the tail-end multimodal sample server determines the first acquisition time of the target sintering process parameters corresponding to the sintering cake at the reference time, including:

[0019] The speed value of the belt in the middle of the sintering cake at the reference time is obtained from the sensor in the sintering PLC that collects the sintering process parameters.

[0020] Obtain the belt length value, sintering machine speed value, sintering machine length value, and mixture mixing time;

[0021] If the quantity of the belt is 0, then the first acquisition time is determined based on the first formula;

[0022] If the quantity of the belt is greater than 0, the first acquisition time is determined based on the second formula;

[0023] The first formula includes:

[0024] ;

[0025] The second formula includes:

[0026] ;

[0027] in, The first parameter in the sintering process parameters represents the... The first acquisition time of each process parameter , This indicates the total number of process parameters in the sintering process parameters; This indicates the length of the sintering machine; This indicates the speed value of the sintering machine; Indicates the first The sensor corresponding to the process parameter and the sintered cake at the reference time are the first... The speed value of the belt, , This indicates the quantity of the corresponding belts; Indicates the first The first process parameter corresponds to the first The belt length value of each belt; Indicates the mixing time of the mixture; This indicates the preset first-time correction parameters.

[0028] Preferred options also include:

[0029] The test data server, which is connected to the tail multimodal sample server via a third gigabit network card and a switch, is used to collect test indicators of sintered ore.

[0030] Accordingly, the tail-end multimodal sample server is also used to: determine the second acquisition time of the target sinter quality index corresponding to the sinter cake at the reference time; acquire the target sinter quality index from the sinter testing index according to the second acquisition time; and use the target sinter quality index as the tail section data of the sintering machine.

[0031] Preferably, the tail-end multimodal sample server determines the second acquisition time of the target sinter quality index corresponding to the sinter cake at the reference time, including:

[0032] Determine the crushing time of the sintered cake;

[0033] Obtain the circumference and operating speed of the annular cooler;

[0034] Obtain the conveyor belt speed value of the finished ore;

[0035] Determine the distance from the sampling point to the material discharge point of the annular cooler;

[0036] Determine the time value for sampling the sintered cake and transporting it to the laboratory;

[0037] The second acquisition time is determined using the third calculation formula;

[0038] The third calculation formula includes:

[0039] ;

[0040] in, This indicates the second acquisition time; Indicates the breaking time; This represents the perimeter value; This indicates the operating speed value; This represents the distance value; This indicates the belt speed value; This indicates the duration value; This indicates the preset second time correction parameter.

[0041] A method for acquiring cross-sectional data of the tail section of a sintering machine includes:

[0042] Acquire infrared images of the tail of the sintering machine from an infrared thermal imager installed at the tail of the sintering machine;

[0043] Determine a first region of interest and a second region of interest. The first region of interest includes the cross-section or section of the current sintering cake, and the second region of interest includes the area of ​​the grate plate of the trolley adjacent to the current sintering cake of the fallen sintering cake trolley.

[0044] Determine the first temperature value and the first image size value of the first region of interest in the infrared image of the tail of the sintering machine, and determine the second temperature value of the second region of interest in the infrared image of the tail of the sintering machine;

[0045] Obtain the second image size value of the first region of interest in the preset pseudo-color image of the tail section of the sintering machine;

[0046] If the temperature difference between the first temperature value and the second temperature value is greater than the first preset threshold, and the difference between the first image size value and the second image size value is less than the second threshold, then the acquisition time corresponding to the infrared image of the sintering machine is determined as the reference time for acquiring the cross-sectional data of the tail section of the sintering machine.

[0047] The cross-sectional data of the sintering machine tail section is obtained based on the reference time.

[0048] A sintering machine tail section data acquisition system includes:

[0049] The first acquisition module is used to acquire infrared images of the tail of the sintering machine collected by an infrared thermal imager installed at the tail of the sintering machine.

[0050] The first determining module is used to determine a first region of interest and a second region of interest. The first region of interest includes the cross-section or section of the current sintering cake, and the second region of interest includes the area of ​​the trolley grate adjacent to the current sintering cake of the falling sintering cake trolley.

[0051] The second determining module is used to determine the first temperature value and the first image size value of the first region of interest in the infrared image of the tail of the sintering machine, and to determine the second temperature value of the second region of interest in the infrared image of the tail of the sintering machine.

[0052] The third acquisition module is used to acquire the second image size value of the first region of interest in the preset pseudo-color image of the tail section of the sintering machine;

[0053] The third determining module is used to determine the acquisition time corresponding to the infrared image of the sintering machine as the reference time for acquiring the cross-sectional data of the tail section of the sintering machine if the temperature difference between the first temperature value and the second temperature value is greater than the first preset threshold and the difference between the first image size value and the second image size value is less than the second threshold.

[0054] The fourth acquisition module is used to acquire the cross-sectional data of the tail section of the sintering machine based on the reference time.

[0055] A device for acquiring cross-sectional data of the tail section of a sintering machine, comprising:

[0056] Memory, used to store computer programs;

[0057] A processor is used to execute the computer program to implement the steps of the sintering machine tail section data acquisition method as described above.

[0058] A computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the sintering machine tail section data acquisition method described above.

[0059] This application provides a sintering machine tail section data acquisition device, including an infrared thermal imager installed at the tail of the sintering machine for acquiring infrared images of the sintering machine tail; a tail multimodal sample server connected to the infrared thermal imager for acquiring the infrared images of the sintering machine tail acquired by the infrared thermal imager installed at the tail of the sintering machine; determining a first region of interest and a second region of interest, the first region of interest including the cross section or section of the current sintering cake, and the second region of interest including the area of ​​the grate plate of the falling front sintering cake trolley adjacent to the current sintering cake; and determining the infrared cross section of the sintering machine tail. The first temperature value and the first image size value of the first region of interest in the external image are used to determine the second temperature value of the second region of interest in the infrared image of the sintering machine tail. The second image size value of the first region of interest in the preset pseudo-color image of the sintering machine tail section is obtained. If the temperature difference between the first temperature value and the second temperature value is greater than a first preset threshold, and the difference between the first image size value and the second image size value is less than a second threshold, then the acquisition time corresponding to the infrared image of the sintering machine is determined as the reference time for obtaining the sintering machine tail section data. The sintering machine tail section data is obtained based on the reference time. In this application, because the first region of interest in the infrared image of the sintering machine tail includes the cross-section or section of the current sintering cake, and the second region of interest includes the area of ​​the grate plate of the falling sintering cake trolley adjacent to the current sintering cake, the temperature difference between the cross-section or section of the sintering cake and the grate plate area reaches its maximum when the sintering machine tail breaks, the tail-end multimodal sample server can accurately determine the reference time for acquiring the sintering machine tail section data based on the infrared image of the sintering machine tail acquired by the infrared thermal imager installed at the sintering machine tail, and can quickly acquire the sintering machine tail section data based on the reference time. The sintering machine tail section data acquisition method, system, equipment, and computer-readable storage medium provided in this application also solve the corresponding technical problems. Attached Figure Description

[0060] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0061] Figure 1 This is a schematic diagram of the structure of a sintering machine tail section data acquisition device provided in an embodiment of this application;

[0062] Figure 2 This is a schematic diagram of the ROI region in an infrared image;

[0063] Figure 3 This is a schematic diagram of a binocular image acquisition device;

[0064] Figure 4 Data flow diagram in the sintering machine tail section data acquisition device provided in this application;

[0065] Figure 5 A flowchart illustrating a method for acquiring cross-sectional data of the tail section of a sintering machine, provided in an embodiment of this application;

[0066] Figure 6 This is a schematic diagram of a sintering machine tail section data acquisition system provided in an embodiment of this application;

[0067] Figure 7 A schematic diagram of a sintering machine tail section data acquisition device provided in this application embodiment;

[0068] Figure 8 This is another structural schematic diagram of a sintering machine tail section data acquisition device provided in an embodiment of this application. Detailed Implementation

[0069] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0070] Please see Figure 1 , Figure 1 This is a schematic diagram of a sintering machine tail section data acquisition device provided in an embodiment of this application.

[0071] This application provides a device for acquiring cross-sectional data of the tail section of a sintering machine, which may include:

[0072] The infrared thermal imager 11 installed at the tail of the sintering machine is used to collect infrared images of the tail of the sintering machine.

[0073] The tail-end multimodal sample server 12, connected to the infrared thermal imager 11, is used to acquire infrared images of the sintering machine tail installed on the infrared thermal imager; determine a first region of interest and a second region of interest, the first region of interest including the cross-section or section of the current sintering cake, such as a preset size area with the cross-section or section of the current sintering cake as its lower boundary, and the second region of interest including the grate area of ​​the trolley adjacent to the current sintering cake of the fallen sintering cake trolley; determine the first temperature value and the first image size value of the first region of interest in the infrared image of the sintering machine tail, and determine the second temperature value of the second region of interest in the infrared image of the sintering machine tail; acquire the second image size value of the first region of interest in a preset pseudo-color image of the sintering machine tail section; if the temperature difference between the first temperature value and the second temperature value is greater than a first preset threshold, and the difference between the first image size value and the second image size value is less than a second threshold, then determine the acquisition time corresponding to the infrared image of the sintering machine as the reference time for acquiring the sintering machine tail section data; and acquire the sintering machine tail section data based on the reference time.

[0074] In practical applications, the type of infrared thermal imager can be determined according to actual needs. It should be noted that due to the slow movement of the sintering machine, the average temperature of the first and second regions of interest (ROIs) will change slowly. When the optimal cross-section appears, the average temperature of the second ROI will suddenly increase. Since the first ROI contains a large amount of relatively low-temperature sintered ore, its average temperature increase is limited. However, the second ROI is close to the falling sintered cake, which falls instantly after breaking. Therefore, the time window for the sudden temperature increase in the second ROI is very short. Thus, the occurrence of the optimal cross-section is determined by the temperature difference between the second and first ROIs. The temperature difference threshold α between the second and first ROIs when the optimal cross-section appears can be obtained statistically. Furthermore, since the size difference between the first and second ROIs is relatively fixed, the reference time can also be determined based on the size values ​​of the first and second ROIs. The optimal cross-section can be captured manually by the infrared imager. A pseudo-image is used as a preset pseudo-color image of the sintering machine tail section. The cross-section of the sintering cake in the pseudo-image and the position of the previous trolley grate are obtained. Then, in the infrared thermal imager, a first region of interest and a second region of interest are set according to the obtained positions. A threshold δ is set according to the size of the first region of interest and the second region of interest. That is, when the infrared image of the sintering machine tail acquired by the infrared thermal imager satisfies the condition that the temperature difference between the corresponding first temperature value and the second temperature value is greater than the first preset threshold, and the difference between the corresponding first image size value and the second image size value is less than the second threshold, it can be determined that the infrared image of the sintering machine tail acquired by the infrared thermal imager at this time is the optimal cross-sectional image. At this time, the acquisition time corresponding to the infrared image of the sintering machine can be used as the reference time for obtaining the cross-sectional data of the sintering machine tail section, and the cross-sectional data of the sintering machine tail section is obtained based on the reference time. In addition, in specific application scenarios, the process of determining the reference time by the tail multimodal sample server can be as follows:

[0075] Step 0: Set the frame rate of the infrared thermal imager to maximum, acquire infrared image frames of the sintering machine tail within 1 minute, select the cross-sectional pseudo-color images with the best angle and clarity, and mark them as follows. Figure 2 In the frame of infrared image of the tail of the sintering machine, the positions of the two frames, 1 and 2, are recorded. The position of frame 1 is recorded as S1 and the position of frame 2 is recorded as S2. The S1 part is cropped into an independent image, and the size of this part of the image is calculated and recorded as M1.

[0076] Step 1: Set ROI1 and ROI2 using an infrared thermal imager, i.e., the first region of interest and the second region of interest. Set the optimal cross-sectional temperature difference threshold as α and initialize α = ta (ta is a value greater than 0).

[0077] Step 2: Collect cross-sectional temperature information frames, calculate their average values ​​and record them as T1 and T2 respectively, determine whether T2-T1>α is true, and if the condition is true, collect a pseudo-color image. According to the position of S1, cut out part R1 from the collected pseudo-color image, store this part of the image, and calculate the size of this part of the image and record it as TM1.

[0078] Step 3: Determine whether |TM1-M1|<δ is true (δ is an integer, δ<3KB, 1KB is 1024 bytes). If the expression is true, the infrared image of the sintering machine tail is the best cross-sectional image and the algorithm proceeds to Step 4. Otherwise, let α+=γ (γ is a positive integer less than 10) and the algorithm proceeds to Step 2.

[0079] Step 4: Record the current best frame acquisition time as the reference time for acquiring the tail section data of the sintering machine, and end the calculation of the best moment for the tail multimodal information.

[0080] This application provides a sintering machine tail section data acquisition device, including an infrared thermal imager installed at the tail of the sintering machine for acquiring infrared images of the sintering machine tail; a tail multimodal sample server connected to the infrared thermal imager for acquiring the infrared images of the sintering machine tail acquired by the infrared thermal imager installed at the tail of the sintering machine; determining a first region of interest and a second region of interest, the first region of interest including the cross section or section of the current sintering cake, and the second region of interest including the area of ​​the grate plate of the falling front sintering cake trolley adjacent to the current sintering cake; and determining the infrared cross section of the sintering machine tail. The first temperature value and the first image size value of the first region of interest in the external image are used to determine the second temperature value of the second region of interest in the infrared image of the sintering machine tail. The second image size value of the first region of interest in the preset pseudo-color image of the sintering machine tail section is obtained. If the temperature difference between the first temperature value and the second temperature value is greater than a first preset threshold, and the difference between the first image size value and the second image size value is less than a second threshold, then the acquisition time corresponding to the infrared image of the sintering machine is determined as the reference time for obtaining the sintering machine tail section data. The sintering machine tail section data is obtained based on the reference time. In this application, because the first region of interest in the infrared image of the sintering machine tail includes the cross-section or section of the current sintering cake, and the second region of interest includes the grate area of ​​the trolley adjacent to the current sintering cake of the fallen sintering cake trolley, the temperature difference between the cross-section or section of the sintering cake and the grate area of ​​the trolley reaches its maximum when the sintering machine tail breaks, the tail multimodal sample server can accurately determine the reference time for obtaining the cross-sectional data of the sintering machine tail based on the infrared image of the sintering machine tail collected by the infrared thermal imager installed at the tail of the sintering machine, and can quickly obtain the cross-sectional data of the sintering machine tail based on the reference time.

[0081] Please see Figure 1The sintering machine tail section data acquisition device provided in this application embodiment may further include:

[0082] The visible light camera 13, installed at the tail of the sintering machine and connected to the multimodal sample server at the tail, is used to acquire visible light images of the tail of the sintering machine.

[0083] Correspondingly, the tail-end multimodal sample server is also used to: determine the acquisition time of the visible light camera that is the same as or after the reference time based on the frame rate of the visible light camera; acquire the visible light image of the target sintering machine tail acquired by the visible light camera at the acquisition time; and use the visible light image of the target sintering machine tail as the cross-sectional data of the sintering machine tail.

[0084] In specific application scenarios, the tail-end multimodal sample server can determine the acquisition time of the visible light camera based on the formula Ti=TP+a1 (a1 < 1 / f), where Ti represents the acquisition time of the visible light camera, TP represents the reference time, a1 is the time between the visible light camera at time TP and the next frame image, and f is the acquisition frame rate of the visible light camera.

[0085] In specific application scenarios, infrared thermal imagers, visible light cameras, air-cooled and water-cooled protective covers, and brackets constitute a binocular image acquisition device, such as... Figure 3 As shown, the binocular image acquisition device is connected to the multimodal sample server at the tail of the sintering machine via optical fiber and a first gigabit network card. The binocular image acquisition device is installed at the center of the sealing cover at the tail of the sintering machine, with its installation height flush with the top of the cross-section. The air-cooled and water-cooled protective cover is made of rust-proof and corrosion-resistant stainless steel with a protection rating of IP66 or higher. The temperature of the circulating water and compressed air in the plant is less than or equal to 40℃. Valves are installed at the compressed air inlet and circulating water inlet / outlet. The pressure of both water and air is greater than or equal to 0.4 MPa, and the flow rate is greater than or equal to 0.4 m³ / h. 3 / min;

[0086] Among them, the infrared thermal imager has a maximum frame rate of 8 frames per second or greater, the visible light camera has a maximum frame rate of 10 frames per second or greater, and the visible light camera uses a high-precision area array camera.

[0087] Please see Figure 1 The sintering machine tail section data acquisition device provided in this application embodiment may further include:

[0088] The sintering PLC14, which is connected to the tail multimodal sample server via a second gigabit network card and a switch, is used to collect sintering process parameters.

[0089] Correspondingly, the tail-end multimodal sample server is also used to: determine the first acquisition time of the target sintering process parameters corresponding to the sinter cake under the reference time; acquire the target sintering process parameters from the sintering process parameters according to the first acquisition time; and use the target sintering process parameters as the tail section data of the sintering machine.

[0090] In specific application scenarios, during the process of determining the first acquisition time of the target sintering process parameters corresponding to the sintered cake at the reference time by the tail-end multimodal sample server, the following steps can be performed:

[0091] The speed value of the belt in the middle of the sintering cake is obtained from the sensor that collects sintering process parameters in the sintering PLC at the reference time.

[0092] Obtain the belt length value, sintering machine speed value, sintering machine length value, and mixture mixing time;

[0093] If the quantity of belts is 0, the first acquisition time is determined based on the first formula;

[0094] If the quantity of the belt is greater than 0, the first acquisition time is determined based on the second formula;

[0095] The first formula includes:

[0096] ;

[0097] The second formula includes:

[0098] ;

[0099] in, Indicating the first parameter in the sintering process parameters The first acquisition time of each process parameter , This indicates the total number of process parameters in the sintering process parameters; This indicates the length of the sintering machine; This indicates the sintering machine speed. Indicates the first The sensor corresponding to each process parameter and the time interval between the sintered cake and the reference time are... The speed value of the belt, , This indicates the quantity of the corresponding belts; Indicates the first The first process parameter corresponds to the first The length value of each belt; Indicates the mixing time of the mixture; This indicates the preset first-time correction parameters.

[0100] Please see Figure 1The sintering machine tail section data acquisition device provided in this application embodiment may further include:

[0101] The test data server 15, which is connected to the tail multimodal sample server via a third gigabit network card and switch, is used to collect test indicators of sintered ore.

[0102] Correspondingly, the tail-end multimodal sample server is also used to: determine the second acquisition time of the target sinter quality index corresponding to the sinter cake at the reference time; acquire the target sinter quality index from the sinter test index according to the second acquisition time; and use the target sinter quality index as the tail section data of the sintering machine.

[0103] In specific application scenarios, obtaining quality indicators in sintering plants requires sampling and testing, typically conducted at the steel plant's testing center. After the sinter cake falls, it undergoes crushing and cooling in an annular cooler before entering the finished ore conveyor belt. Sampling of the sinter is generally done uniformly across the cross-section of the finished ore conveyor belt. Therefore, in the process of determining the second acquisition time of the target sinter quality indicators corresponding to the sinter cake at the reference time using the multimodal sample server at the tail end of the machine, the following steps can be performed:

[0104] Determine the crushing time of the sintered cake;

[0105] Obtain the circumference and operating speed of the annular cooler;

[0106] Obtain the conveyor belt speed value of the finished ore;

[0107] Determine the distance from the sampling point to the material discharge point of the annular cooler;

[0108] Determine the time value for sampling the sintered cake and transporting it to the laboratory;

[0109] The second acquisition time is determined using the third calculation formula;

[0110] The third operational formula includes:

[0111] ;

[0112] in, Indicates the second acquisition time; Indicates the time of breakage; Indicates the perimeter value; Indicates the running speed value; Indicates the distance value; Indicates the belt speed value; Indicates duration value; This indicates the preset second time correction parameter.

[0113] In specific application scenarios, the data flow direction in the sintering machine tail section data acquisition device provided in this application can be as follows: Figure 4 As shown in the figure, etc., this application will not repeat them here.

[0114] Please see Figure 5 , Figure 5 This is a flowchart illustrating a method for acquiring cross-sectional data of the tail section of a sintering machine, as provided in an embodiment of this application.

[0115] This application provides a method for acquiring cross-sectional data of the tail section of a sintering machine, which may include the following steps:

[0116] Step S101: Obtain the infrared image of the tail of the sintering machine from the infrared thermal imager installed at the tail of the sintering machine.

[0117] Step S102: Determine the first region of interest and the second region of interest. The first region of interest includes the cross-section or section of the current sintering cake, and the second region of interest includes the area of ​​the grate plate of the trolley of the falling sintering cake trolley adjacent to the current sintering cake.

[0118] Step S103: Determine the first temperature value and the first image size value of the first region of interest in the infrared image of the sintering machine tail, and determine the second temperature value of the second region of interest in the infrared image of the sintering machine tail.

[0119] Step S104: Obtain the second image size value of the first region of interest in the preset pseudo-color image of the tail section of the sintering machine.

[0120] Step S105: If the temperature difference between the first temperature value and the second temperature value is greater than the first preset threshold, and the difference between the first image size value and the second image size value is less than the second threshold, then the acquisition time corresponding to the infrared image of the sintering machine is determined as the reference time for acquiring the cross-sectional data of the tail section of the sintering machine.

[0121] Step S106: Obtain cross-sectional data of the sintering machine tail section based on the reference time.

[0122] The description of the corresponding steps in the method for obtaining cross-sectional data of the tail section of a sintering machine provided in this application can be found in the above embodiments, and will not be repeated here.

[0123] Please see Figure 6 , Figure 6 This is a schematic diagram of a sintering machine tail section data acquisition system provided in an embodiment of this application.

[0124] This application provides a sintering machine tail section data acquisition system, which may include:

[0125] The first acquisition module 101 is used to acquire infrared images of the tail of the sintering machine collected by an infrared thermal imager installed at the tail of the sintering machine.

[0126] The first determining module 102 is used to determine a first region of interest and a second region of interest. The first region of interest includes the cross-section or section of the current sintering cake, and the second region of interest includes the area of ​​the trolley grate adjacent to the current sintering cake of the falling sintering cake trolley.

[0127] The second determining module 103 is used to determine the first temperature value and the first image size value of the first region of interest in the infrared image of the tail of the sintering machine, and to determine the second temperature value of the second region of interest in the infrared image of the tail of the sintering machine.

[0128] The third acquisition module 104 is used to acquire the second image size value of the first region of interest in the preset pseudo-color image of the tail section of the sintering machine;

[0129] The third determining module 105 is used to determine the acquisition time corresponding to the infrared image of the sintering machine as the reference time for acquiring the cross-sectional data of the tail section of the sintering machine if the temperature difference between the first temperature value and the second temperature value is greater than the first preset threshold and the difference between the first image size value and the second image size value is less than the second threshold.

[0130] The fourth acquisition module 106 is used to acquire cross-sectional data of the tail section of the sintering machine based on the reference time.

[0131] The description of the corresponding module in the sintering machine tail section data acquisition system provided in this application embodiment can be found in the above embodiments, and will not be repeated here.

[0132] This application also provides a device for acquiring cross-sectional data of the tail section of a sintering machine and a computer-readable storage medium, both of which have the corresponding effects of the method for acquiring cross-sectional data of the tail section of a sintering machine provided in the embodiments of this application. Please refer to... Figure 7 , Figure 7 This is a schematic diagram of a sintering machine tail section data acquisition device provided in an embodiment of this application.

[0133] This application provides a sintering machine tail section data acquisition device, including a memory 201 and a processor 202. The memory 201 stores a computer program, and when the processor 202 executes the computer program, it implements the steps of the sintering machine tail section data acquisition method described in any of the above embodiments.

[0134] Please see Figure 8The sintering machine tail section data acquisition device provided in this application embodiment may further include: an input port 203 connected to the processor 202 for transmitting commands input from the outside to the processor 202; a display unit 204 connected to the processor 202 for displaying the processing results of the processor 202 to the outside; and a communication module 205 connected to the processor 202 for enabling communication between the sintering machine tail section data acquisition device and the outside. The display unit 204 may be a display panel, a laser scanner, or the like; the communication method used by the communication module 205 includes, but is not limited to, Mobile High Definition Link (HML), Universal Serial Bus (USB), High Definition Multimedia Interface (HDMI), wireless connection: Wi-Fi, Bluetooth communication, Bluetooth Low Energy communication, and IEEE 802.11s-based communication technology.

[0135] This application provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the steps of the sintering machine tail section data acquisition method described in any of the above embodiments.

[0136] The computer-readable storage media involved in this application include random access memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disks, removable disks, CD-ROMs, or any other form of storage media known in the art.

[0137] For descriptions of relevant parts in the sintering machine tail section data acquisition method, system, equipment, and computer-readable storage medium provided in this application's embodiments, please refer to the detailed description of the corresponding parts in the sintering machine tail section data acquisition device provided in this application's embodiments; they will not be repeated here. Furthermore, parts of the technical solutions provided in this application that are consistent with the implementation principles of corresponding technical solutions in the prior art are not described in detail to avoid excessive elaboration.

[0138] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0139] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for acquiring cross-sectional data of the tail section of a sintering machine, characterized in that, include: An infrared thermal imager installed at the tail of the sintering machine is used to collect infrared images of the tail of the sintering machine. A tail-end multimodal sample server connected to the infrared thermal imager is used to acquire infrared images of the sintering machine tail installed on the infrared thermal imager; determine a first region of interest and a second region of interest, wherein the first region of interest includes the cross-section or section of the current sintering cake, and the second region of interest includes the grate area of ​​the trolley adjacent to the current sintering cake of the fallen sintering cake trolley; determine a first temperature value and a first image size value of the first region of interest in the infrared image of the sintering machine tail, and determine a second temperature value of the second region of interest in the infrared image of the sintering machine tail. Obtain the second image size value of the first region of interest in the preset pseudo-color image of the tail section of the sintering machine; if the temperature difference between the first temperature value and the second temperature value is greater than the first preset threshold, and the difference between the first image size value and the second image size value is less than the second threshold, then determine the acquisition time corresponding to the infrared image of the sintering machine as the reference time for acquiring the tail section data of the sintering machine. The cross-sectional data of the sintering machine tail section are obtained based on the reference time. The sintering machine tail section data includes a visible light image of the sintering machine tail and / or the target sintering process parameters corresponding to the sintering cake.

2. The sintering machine tail section data acquisition device according to claim 1, characterized in that, Also includes: A visible light camera installed at the tail of the sintering machine and connected to the tail multimodal sample server is used to acquire visible light images of the tail of the sintering machine. Accordingly, the tail multimodal sample server is also used to: determine the acquisition time of the visible light camera that is the same as or the first one located after the reference time based on the frame rate of the visible light camera; acquire the visible light image of the target sintering machine tail acquired by the visible light camera at the acquisition time; and use the visible light image of the target sintering machine tail as the cross-sectional data of the sintering machine tail.

3. The sintering machine tail section data acquisition device according to claim 2, characterized in that, The infrared thermal imager, the visible light camera, and the air-cooled / water-cooled protective cover and bracket constitute a binocular image acquisition device. This device is connected to the multimodal sample server at the tail of the sintering machine via optical fiber and a first gigabit network card. The binocular image acquisition device is installed at the sealing cover at the tail of the sintering machine, in the center of the cover, and at the same height as the top of the cross-section. The air-cooled / water-cooled protective cover is made of rust-proof and corrosion-resistant stainless steel with a protection rating of IP66 or higher. The temperature of the circulating water and compressed air within the plant is less than or equal to 40°C. Valves are installed at the compressed air inlet and circulating water inlet / outlet. The pressure of both water and air is greater than or equal to 0.4 MPa, and the flow rate is greater than or equal to 0.4 m³ / h. 3 / min; The infrared thermal imager has a maximum frame rate of 8 frames per second or more, the visible light camera has a maximum frame rate of 10 frames per second or more, and the visible light camera is a high-precision area array camera.

4. The sintering machine tail section data acquisition device according to claim 1, characterized in that, Also includes: The sintering PLC, connected to the tail multimodal sample server via a second gigabit network card and a switch, is used to collect sintering process parameters. Correspondingly, the tail multimodal sample server is also used to: determine the first acquisition time of the target sintering process parameters corresponding to the sintering cake at the reference time; The target sintering process parameters are obtained from the sintering process parameters according to the first acquisition time. The target sintering process parameters are used as the cross-sectional data of the tail section of the sintering machine.

5. The sintering machine tail section data acquisition device according to claim 4, characterized in that, The tail-end multimodal sample server determines the first acquisition time of the target sintering process parameters corresponding to the sintering cake at the reference time, including: The speed value of the belt in the middle of the sintering cake at the reference time is obtained from the sensor in the sintering PLC that collects the sintering process parameters. Obtain the belt length value, sintering machine speed value, sintering machine length value, and mixture mixing time; If the quantity of the belt is 0, then the first acquisition time is determined based on the first formula; If the quantity of the belt is greater than 0, the first acquisition time is determined based on the second formula; The first formula includes: ； The second formula includes: ； in, The first parameter in the sintering process parameters represents the... The first acquisition time of each process parameter , This indicates the total number of process parameters in the sintering process parameters; This indicates the length of the sintering machine; This indicates the speed value of the sintering machine; Indicates the first The sensor corresponding to the process parameter and the sintered cake at the reference time are the first... The speed value of the belt, , This indicates the quantity of the corresponding belts; Indicates the first The first process parameter corresponds to the first The belt length value of each belt; Indicates the mixing time of the mixture; This indicates the preset first-time correction parameters.

6. The sintering machine tail section data acquisition device according to claim 1, characterized in that, Also includes: The test data server, which is connected to the tail multimodal sample server via a third gigabit network card and a switch, is used to collect test indicators of sintered ore. Accordingly, the tail-end multimodal sample server is also used to: determine the second acquisition time of the target sinter quality index corresponding to the sinter cake under the reference time; acquire the target sinter quality index from the sinter testing index according to the second acquisition time; and use the target sinter quality index as the tail section data of the sintering machine.

7. The sintering machine tail section data acquisition device according to claim 6, characterized in that, The tail-end multimodal sample server determines the second acquisition time of the target sinter quality index corresponding to the sinter cake at the reference time, including: Determine the crushing time of the sintered cake; Obtain the circumference and operating speed of the annular cooler; Obtain the conveyor belt speed value of the finished ore; Determine the distance from the sampling point to the material discharge point of the annular cooler; Determine the time value for sampling the sintered cake and transporting it to the laboratory; The second acquisition time is determined using the third calculation formula; The third calculation formula includes: ； in, This indicates the second acquisition time; Indicates the breaking time; This represents the perimeter value; This indicates the operating speed value; This represents the distance value; This indicates the belt speed value; This indicates the duration value; This indicates the preset second time correction parameter.

8. A method for acquiring cross-sectional data of the tail section of a sintering machine, characterized in that, include: Acquire infrared images of the tail of the sintering machine from an infrared thermal imager installed at the tail of the sintering machine; Determine a first region of interest and a second region of interest. The first region of interest includes the cross-section or section of the current sintering cake, and the second region of interest includes the area of ​​the grate plate of the trolley adjacent to the current sintering cake of the fallen sintering cake trolley. Determine the first temperature value and the first image size value of the first region of interest in the infrared image of the tail of the sintering machine, and determine the second temperature value of the second region of interest in the infrared image of the tail of the sintering machine; Obtain the second image size value of the first region of interest in the preset pseudo-color image of the tail section of the sintering machine; If the temperature difference between the first temperature value and the second temperature value is greater than the first preset threshold, and the difference between the first image size value and the second image size value is less than the second threshold, then the acquisition time corresponding to the infrared image of the sintering machine is determined as the reference time for acquiring the cross-sectional data of the tail section of the sintering machine. The cross-sectional data of the sintering machine tail section are obtained based on the reference time. The sintering machine tail section data includes a visible light image of the sintering machine tail and / or the target sintering process parameters corresponding to the sintering cake.

9. A system for acquiring cross-sectional data of the tail section of a sintering machine, characterized in that, include: The first acquisition module is used to acquire infrared images of the tail of the sintering machine collected by an infrared thermal imager installed at the tail of the sintering machine. The first determining module is used to determine a first region of interest and a second region of interest. The first region of interest includes the cross-section or section of the current sintering cake, and the second region of interest includes the area of ​​the grate plate of the trolley adjacent to the current sintering cake of the falling sintering cake trolley. The second determining module is used to determine the first temperature value and the first image size value of the first region of interest in the infrared image of the tail of the sintering machine, and to determine the second temperature value of the second region of interest in the infrared image of the tail of the sintering machine. The third acquisition module is used to acquire the second image size value of the first region of interest in the preset pseudo-color image of the tail section of the sintering machine; The third determining module is used to determine the acquisition time corresponding to the infrared image of the sintering machine as the reference time for acquiring the cross-sectional data of the tail section of the sintering machine if the temperature difference between the first temperature value and the second temperature value is greater than the first preset threshold and the difference between the first image size value and the second image size value is less than the second threshold. The fourth acquisition module is used to acquire the cross-sectional data of the tail section of the sintering machine based on the reference time. The sintering machine tail section data includes a visible light image of the sintering machine tail and / or the target sintering process parameters corresponding to the sintering cake.

10. A device for acquiring cross-sectional data of the tail section of a sintering machine, characterized in that, include: Memory, used to store computer programs; A processor is configured to execute the computer program to implement the steps of the sintering machine tail section data acquisition method as described in claim 8.

11. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the sintering machine tail section data acquisition method as described in claim 8.

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