Method, device, equipment and medium for suppressing converter slag overflow
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHOUGANG GROUP CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-05-12
AI Technical Summary
During the converter blowing process, molten slag splashes rapidly, and operators can only make process adjustments after the splashes are detected, resulting in poor slag overflow suppression.
By obtaining the actual smelting time and slag overflow characteristic value of the converter, the period when slag overflow is likely to occur can be predicted, the smelting parameters can be adjusted in advance, and an alarm can be set to notify the operator to manually suppress the overflow when the slag overflow characteristic value exceeds the threshold.
It improves the foresight and effectiveness of slag overflow suppression, reduces damage to iron and equipment caused by splashing, and ensures the safety of operators.
Smart Images
Figure CN120272665B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of metallurgical technology, and in particular to a method, apparatus, equipment and medium for suppressing converter slag overflow. Background Technology
[0002] During the converter blowing process, fluctuations in raw material properties, carbon-oxygen reaction rate, and process operation level are all factors that affect the splashing of slag and steel at the converter mouth. Splashing can have serious consequences for iron loss, equipment damage, and worker safety.
[0003] In existing technology, cameras are placed near the converter opening to capture video images of the opening. Operators then observe these images to determine if splashing has occurred. If splashing is observed, the operating process is adjusted to suppress slag overflow.
[0004] However, during the converter blowing process, the molten slag splashes quickly and for a short time. Operators can only make adjustments to the operating process after they discover the splash, which results in a delay in adjustment time relative to the splash occurrence time, leading to poor slag overflow suppression. Summary of the Invention
[0005] In view of the above problems, the present invention is proposed to provide a method, apparatus, equipment and medium for suppressing converter overflow to solve the above problems. When the actual smelting time of the converter enters the time range where overflow is likely to occur, the smelting parameters of the converter can be adjusted to start the anti-overflow operation in advance. If the suppression effect of advance is not good, the operator can be notified to perform manual suppression operation to further improve the slag overflow suppression effect.
[0006] In a first aspect, the present invention provides a method for suppressing converter slag overflow, the method comprising:
[0007] The actual duration of the current furnace smelting is obtained, where the start time of the actual duration is the start time of the current furnace smelting and the end time is the current time.
[0008] If the actual duration is within the preset slag overflow duration range, the smelting parameters of the converter are adjusted to the target smelting parameters, and the current slag overflow characteristic value of the converter in the current furnace is obtained. The current slag overflow characteristic value is used to characterize the current slag overflow intensity.
[0009] If the current overflow slag characteristic value is greater than the preset characteristic value threshold, then calculate the duration for which the current overflow slag characteristic value is greater than the characteristic value threshold;
[0010] If the duration exceeds a preset time threshold, an alarm will be triggered to notify the operator to activate overflow suppression measures.
[0011] Optionally, obtaining the current slag overflow characteristic value of the converter in the current heat includes:
[0012] Obtain the current slag overflow image at the converter opening of the current furnace batch;
[0013] The region of interest is cropped from the current overflow image;
[0014] Determine the overflow area from the region of interest;
[0015] The ratio of the area of the overflow region to the area of the region of interest is calculated to obtain the current overflow feature value.
[0016] Optionally, the overflow slag duration intervals may include multiple intervals, with different overflow slag duration intervals corresponding to different target smelting parameters.
[0017] Optionally, the method further includes:
[0018] Obtain the historical slag overflow characteristic value of the converter in historical furnace cycles, wherein the historical furnace cycles are those preceding the current furnace cycle;
[0019] Plot the curves showing how the historical slag overflow characteristic values change over time;
[0020] Based on the curve, determine the time period in which the slag overflow occurred;
[0021] Based on the time period, the duration range of the easily overflowing slag is determined.
[0022] Optionally, the curve includes at least one peak within the time period during which the slag overflow occurs, and after determining the time period of the slag overflow based on the curve, the method further includes:
[0023] Based on the historical slag overflow characteristic values of the peaks within the time period, the target smelting parameters corresponding to the slag overflow duration interval are determined.
[0024] Optionally, determining the target smelting parameters corresponding to the slag-prone duration interval based on the historical slag overflow characteristic values of the peaks within the time period includes:
[0025] Integrate the historical slag overflow characteristic values within the time period to obtain the integral value for the time period;
[0026] Based on the integral value of the time period and the historical slag overflow characteristic value of the peak within the time period, the target smelting parameters corresponding to the slag overflow duration interval are determined.
[0027] Optionally, after plotting the curve of the historical slag overflow characteristic value changing over time, the method further includes:
[0028] Based on the curve, determine the number, intensity, and time period of slag overflow, as well as the maximum historical slag overflow characteristic value and the integral value of the historical slag overflow characteristic value within each time period, and determine the slag overflow suppression measures.
[0029] Secondly, the present invention provides a converter slag overflow suppression device, the device comprising:
[0030] The first acquisition module is used to acquire the actual duration of the converter smelting in the current furnace, wherein the start time of the actual duration is the start time of the smelting in the current furnace, and the end time is the current time.
[0031] The adjustment module is used to adjust the smelting parameters of the converter to the target smelting parameters if the actual duration is within a preset slag overflow duration range, and to obtain the current slag overflow characteristic value of the converter for the current heat, wherein the current slag overflow characteristic value is used to characterize the current slag overflow intensity.
[0032] The calculation module is used to calculate the duration during which the current overflow slag characteristic value is greater than the preset characteristic value threshold if the current overflow slag characteristic value is greater than the characteristic value threshold.
[0033] An alarm module is used to issue an alarm if the duration exceeds a preset duration threshold, so as to notify the operator to activate overflow suppression measures.
[0034] Thirdly, the present invention provides an electronic device comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to perform the method as described in the first aspect.
[0035] Fourthly, the present invention provides a computer-readable storage medium storing computer instructions for causing the computer to perform the method as described in the first aspect.
[0036] The technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
[0037] This invention provides a method, apparatus, equipment, and medium for suppressing converter slag overflow. The method involves acquiring the actual duration of smelting in the current heat, with the start time of the actual duration being the start time of the current heat's smelting and the end time being the current time, to understand the smelting progress. If the actual duration falls within a preset slag overflow time interval, it indicates that smelting has entered a period prone to slag overflow. The smelting parameters of the converter are then adjusted to target smelting parameters to suppress slag overflow. The current slag overflow characteristic value of the converter in the current heat is acquired, characterizing the current slag overflow intensity to determine if slag overflow has actually occurred. If the current slag overflow characteristic value is greater than a preset characteristic value threshold, it indicates that slag overflow has actually occurred. The duration for which the current slag overflow characteristic value is greater than the characteristic value threshold is calculated to determine if slag overflow is under control. If the duration is greater than a preset duration threshold, it indicates that slag overflow has not been effectively controlled, and an alarm is triggered to notify the operator to initiate slag overflow suppression measures for further suppression. This method adjusts the smelting parameters of the converter when the actual smelting time of the converter enters the time range where slag overflow is likely to occur, and starts the anti-slag overflow operation in advance. If the effect of early suppression is not good, the operator is notified to perform manual suppression operation to further improve the slag overflow suppression effect.
[0038] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description
[0039] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0040] Figure 1 This is a flowchart of a method for suppressing converter slag overflow provided in an embodiment of the present invention;
[0041] Figure 2 This is a current slag overflow image of a converter furnace opening provided in an embodiment of the present invention;
[0042] Figure 3 This is a processed region of interest image provided in an embodiment of the present invention;
[0043] Figure 4 This is a curve showing the change of historical slag overflow characteristic values over time, provided by an embodiment of the present invention.
[0044] Figure 5This is a structural block diagram of a converter slag overflow suppression device provided in an embodiment of the present invention. Detailed Implementation
[0045] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings. It should be understood that the embodiments of this disclosure and the specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. Unless otherwise specified, the embodiments of this application and the technical features in the embodiments can be combined with each other.
[0046] Figure 1 This is a flowchart of a converter slag overflow suppression method provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the method includes:
[0047] Step S110: Obtain the actual smelting time of the converter in the current furnace.
[0048] In this embodiment of the application, after the smelting of the current furnace begins, the actual smelting time of the converter is counted in real time, that is, how long the converter has been smelting in the current furnace. The start time of the actual time is the start time of the smelting of the current furnace, and the end time is the current time.
[0049] Step S120: If the actual duration is within the preset slag overflow duration range, adjust the converter's smelting parameters to the target smelting parameters and obtain the current slag overflow characteristic value of the converter for the current heat.
[0050] The current slag overflow characteristic value is used to characterize the current slag overflow intensity. Target smelting parameters include the target oxygen lance height.
[0051] In this embodiment of the application, the time interval for easy slag overflow will be marked in advance. The time interval for easy slag overflow is used to characterize the smelting time interval in which slag overflow is likely to occur, that is, slag overflow is likely to occur within the time interval for easy slag overflow.
[0052] Specifically, if the actual slag overflow duration falls within the preset range, it indicates that slag overflow may occur in the converter. Before slag overflow occurs, the converter's smelting parameters can be adjusted to the target smelting parameters, and an alarm can be triggered to prevent slag overflow and improve converter smelting stability. Then, the current slag overflow characteristic value of the converter can be obtained to understand the actual slag overflow situation.
[0053] In this embodiment, if the actual duration is not within the preset slag overflow duration range, the smelting parameters of the converter are controlled to be the standard smelting parameters. The standard smelting parameters are the smelting parameters during normal converter operation.
[0054] Step S130: If the current overflow slag characteristic value is greater than the preset characteristic value threshold, calculate the duration for which the current overflow slag characteristic value is greater than the characteristic value threshold.
[0055] In this embodiment of the application, if the current overflow characteristic value is greater than the preset characteristic value threshold, it indicates that overflow has occurred. Then, the duration for which the current overflow characteristic value is greater than the characteristic value threshold is calculated, that is, the duration for which overflow continues.
[0056] In this embodiment of the application, if the current overflow characteristic value is less than or equal to the characteristic value threshold, it means that no overflow has occurred, and the change of the current overflow characteristic value can continue to be observed.
[0057] Step S140: If the duration exceeds the preset duration threshold, an alarm will be triggered to notify the operator to activate the overflow suppression measures.
[0058] In this embodiment, if the duration exceeds the preset duration threshold, it indicates that adjusting the converter's smelting parameters to the target smelting parameters does not provide an ideal slag suppression effect. Therefore, it is necessary to promptly notify the operators so that they can manually activate slag suppression measures to further control the development of slag and improve the slag suppression effect.
[0059] In this embodiment of the application, if the duration is less than or equal to the duration threshold, it indicates that the overflow situation has been suppressed, and then the process returns to step S110.
[0060] Optionally, step S120 includes:
[0061] Obtain the current slag overflow image of the converter mouth in the current furnace batch; crop out the region of interest from the current slag overflow image; determine the slag overflow region from the region of interest; calculate the ratio of the area of the slag overflow region to the area of the region of interest to obtain the current slag overflow feature value.
[0062] In this embodiment of the application, a camera is arranged at the converter opening to capture images of slag overflow at the opening.
[0063] Figure 2 This is a current slag overflow image of a converter furnace opening provided in an embodiment of the present invention. Figure 2 The area within the box is the cropped region of interest. Figure 3 This is an image of a processed region of interest provided in an embodiment of the present invention, such as... Figure 3 As shown, Figure 2 The image within the square frame is obtained after image processing methods. Figure 3 , Figure 3The overflowing slag area, i.e., white area A, can be seen more clearly in the image. White area A is extracted, and its first area is calculated. Then, the second area of the entire region of interest is calculated. Finally, the ratio of the first area to the second area is calculated to obtain the current overflowing slag feature value. The image processing methods include simple thresholding, Otsu's algorithm, adaptive thresholding, and deep learning-based intelligent recognition and segmentation methods. One or more of these methods can be selected based on image color, processing speed, and accuracy requirements.
[0064] This can be understood as follows: the larger the area, the more severe the slag overflow, and therefore the larger the corresponding current slag overflow characteristic value. Thus, the current slag overflow characteristic value can characterize the current slag overflow intensity. This current slag overflow characteristic value can be expressed as a percentage.
[0065] In this embodiment of the application, the original image captured by the camera and the image of the region of interest can be displayed on a computer screen for the operator to view.
[0066] Optionally, there are multiple overflow slag duration intervals, and different overflow slag duration intervals correspond to different target smelting parameters.
[0067] In the embodiments of this application, multiple slag overflows may occur in a single furnace run, so multiple slag overflow duration intervals are set. The intensity of slag overflow that may occur in each slag overflow duration interval is different, so the corresponding target smelting parameters will also be different to achieve a better slag overflow suppression effect.
[0068] Optionally, the method also includes:
[0069] The first step is to obtain the historical slag overflow characteristic values of the converter for each historical furnace. The historical furnaces are those before the current furnace.
[0070] In this embodiment of the application, historical slag overflow images of converter mouths from historical furnace batches are obtained; regions of interest are cropped from the historical slag overflow images; slag overflow regions are determined from the regions of interest; and the ratio of the area of the slag overflow region to the area of the region of interest is calculated to obtain historical slag overflow feature values.
[0071] The second step is to plot the curves showing how the historical overflow slag characteristic values change over time.
[0072] In this embodiment, a curve showing the change of historical overflow feature values over time is plotted based on the video analysis frequency of the camera and the historical overflow feature values corresponding to each acquired historical overflow image. The video analysis frequency includes the image sampling frequency.
[0073] Figure 4 This is a curve showing the change of historical slag overflow characteristic values over time, as provided in an embodiment of the present invention. Figure 4As shown, the horizontal axis represents time, and the vertical axis represents historical slag overflow characteristic values.
[0074] The third step is to determine the time period during which slag overflow occurs based on the curve.
[0075] In this embodiment of the application, the curve may include one or more peaks. If the historical slag overflow characteristic value corresponding to the peak is greater than the characteristic value threshold, it indicates that slag overflow occurred in the converter at the time corresponding to the peak. The time points when the historical slag overflow characteristic value is equal to the characteristic value threshold are found forward and backward from the peak, and are respectively used as the start time and end time of the slag overflow time period. Using this method, one or more time periods of slag overflow can be obtained.
[0076] Step 4: Determine the time range for easy overflow of slag based on the time period.
[0077] In this embodiment, the maximum and minimum smelting time of the converter within the time period of slag overflow can be calculated, and the slag overflow time interval can be determined based on the maximum and minimum smelting time. For example, if smelting starts at 9:00, and the slag overflow occurs between 9:10 and 9:20, and the maximum smelting time of the converter is 20 minutes and the minimum is 10 minutes, then the slag overflow time interval can be set to 10-20 minutes.
[0078] The historical slag overflow characteristic value can include the historical slag overflow characteristic value of multiple historical furnaces. Therefore, the curve can also include the curve of multiple historical furnaces, and the time period will also include the time period of multiple historical furnaces. Therefore, the time period of slag overflow can be determined by comprehensively considering the time periods of multiple historical furnaces.
[0079] Optionally, after step three, the method also includes:
[0080] Step 5: Determine the target smelting parameters corresponding to the time intervals prone to slag overflow based on the historical slag overflow characteristic values of the peaks within the time period.
[0081] In this embodiment, the curve includes at least one peak during the time period in which slag overflow occurs. The larger the historical slag overflow characteristic value of the peak within each time period, the greater the intensity of the slag overflow. Therefore, determining the target smelting parameters based on the historical slag overflow characteristic value of the peak can result in a better slag overflow suppression effect. For example, the larger the historical slag overflow characteristic value, the greater the change in the target smelting parameters compared to the standard smelting parameters.
[0082] In this embodiment of the application, the number of time intervals prone to overflowing slag is determined based on the number of peaks whose historical overflow slag characteristic values are greater than the characteristic value threshold.
[0083] In this embodiment, if the historical slag overflow characteristic value corresponding to a peak is greater than the characteristic value threshold, it indicates that slag overflow occurred in the converter at the time corresponding to that peak. Therefore, the number of peaks with historical slag overflow characteristic values greater than the characteristic value threshold represents the number of times slag overflow occurred. The number of times slag overflow occurred determines the number of slag overflow-prone time intervals. Of course, the relationship between the number of slag overflows and the number of slag overflow-prone time intervals can be adjusted according to the time situation.
[0084] Optional, step five includes:
[0085] Integrate the historical slag overflow characteristic values within the time period to obtain the integral value of the time period; based on the integral value of the time period and the historical slag overflow characteristic values of the peaks within the time period, determine the target smelting parameters corresponding to the slag overflow duration interval.
[0086] In this embodiment of the application, the historical slag overflow characteristic values within each time period in which slag overflow occurred can be integrated to obtain the integral value for each time period in which slag overflow occurred. The integral value reflects the intensity of the slag overflow within the corresponding time period. For example, the larger the integral value, the greater the intensity of the slag overflow.
[0087] Next, by comprehensively considering the integral value of the time period and the historical slag overflow characteristic value of the peak within the time period, the target smelting parameters corresponding to the slag overflow duration interval are determined. The larger the integral value, the greater the change in the target smelting parameters compared to the standard smelting parameters.
[0088] Optionally, after step four, the method also includes:
[0089] Based on the curve, determine the frequency, intensity, and time period of slag overflow, as well as the maximum historical slag overflow characteristic value and the integral value of the historical slag overflow characteristic value within each time period, and determine slag overflow suppression measures.
[0090] In this embodiment, a database is provided to store slag overflow information, including the frequency, intensity, and time period of slag overflow determined from the curve, as well as the maximum historical slag overflow characteristic value and the integral value of the historical slag overflow characteristic value within each time period. This slag overflow information is recorded in the database, with one set of slag overflow information corresponding to one furnace cycle. Then, this slag overflow information in the database is analyzed as a reference factor for determining slag overflow suppression measures.
[0091] In daily management, slag overflow information from the database can be retrieved for review and summary, generating daily, weekly, and monthly reports. This allows for analysis of key factors affecting slag overflow during converter smelting, providing recommended converter process operation procedures for different heat categories. Slag overflow information is linked to converter process operation components and other information, and heats are highlighted. This achieves digital management of slag overflow in converter smelting. Combined with big data and deep learning algorithms, it provides a reference for subsequent heat responses, improving awareness and time for effective slag overflow prevention. It solves the technical challenge of short response time for controlling slag overflow during converter blowing, thus facilitating efficient and stable converter operation and promoting automated converter smelting.
[0092] The curve can be processed with numerical filtering and anti-interference measures to ensure the accuracy of the extracted time period for slag overflow. The slag overflow intensity can be determined based on the historical slag overflow characteristic values of the peak value. The historical slag overflow characteristic values of the peak value are divided into intervals, with different intervals corresponding to different slag overflow intensities. For example, three intervals can be divided, with the slag overflow intensities corresponding to high, medium, and low, respectively. The higher the slag overflow intensity, the higher the average value of the historical slag overflow characteristic values within the interval.
[0093] In this embodiment, once the database stores slag overflow information from a certain number of furnace runs, at the start of a new furnace run, it can use a deep learning algorithm to find similar slag overflow information from the database based on information such as smelting composition, providing suggestions to the converter operators. The database has a self-learning and self-updating function, updating its content after a set period of time.
[0094] Based on the same inventive concept, embodiments of the present invention also provide a converter slag overflow suppression device. Figure 5 This is a structural block diagram of a converter slag overflow suppression device provided in an embodiment of the present invention, as shown below. Figure 5 As shown, the device 500 includes a first acquisition module 501, an adjustment module 502, a calculation module 503, and an alarm module 504.
[0095] The first acquisition module 501 is used to acquire the actual duration of the converter smelting in the current furnace. The start time of the actual duration is the start time of the current furnace smelting, and the end time is the current time.
[0096] The adjustment module 502 is used to adjust the smelting parameters of the converter to the target smelting parameters if the actual duration is within the preset slag overflow duration range, and to obtain the current slag overflow characteristic value of the converter for the current heat. The current slag overflow characteristic value is used to characterize the current slag overflow intensity.
[0097] The calculation module 503 is used to calculate the duration for which the current overflow slag characteristic value is greater than the preset characteristic value threshold if the current overflow slag characteristic value is greater than the characteristic value threshold.
[0098] The alarm module 504 is used to trigger an alarm if the duration exceeds a preset time threshold, so as to notify the operator to start overflow suppression measures.
[0099] Optionally, the adjustment module 502 is also used for:
[0100] Obtain the current slag overflow image at the converter opening for the current heat.
[0101] Extract the region of interest from the current overflow image;
[0102] Determine the overflow area from the region of interest;
[0103] Calculate the ratio of the area of the overflow region to the area of the region of interest to obtain the current overflow characteristic value.
[0104] Optionally, there are multiple overflow slag duration intervals, and different overflow slag duration intervals correspond to different target smelting parameters.
[0105] Optionally, device 500 also includes:
[0106] The second acquisition module is used to acquire the historical slag overflow characteristic value of the converter in historical furnaces. The historical furnaces are the furnaces before the current furnace.
[0107] The plotting module is used to plot the curves of historical slag overflow characteristic values over time.
[0108] The first determining module is used to determine the time period during which slag overflow occurs based on the curve;
[0109] The second determination module is used to determine the time interval of the slag overflow based on the time period.
[0110] Optionally, the curve includes at least one peak during the period of slag overflow, and the device 500 further includes:
[0111] The third determination module is used to determine the target smelting parameters corresponding to the time interval of easy slag overflow based on the historical slag overflow characteristic values of the peak within the time period.
[0112] Optionally, the third determining module is also used for:
[0113] Integrate the historical overflow slag characteristic values over the time period to obtain the integral value for the time period;
[0114] Based on the integral value of the time period and the historical slag overflow characteristic value of the peak within the time period, the target smelting parameters corresponding to the slag overflow duration interval are determined.
[0115] Optionally, the device 500 further includes a fourth determining module for:
[0116] Based on the curve, determine the frequency, intensity, and time period of slag overflow, as well as the maximum historical slag overflow characteristic value and the integral value of the historical slag overflow characteristic value within each time period, and determine slag overflow suppression measures.
[0117] It is understood that the device provided in the above embodiments is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.
[0118] This invention also provides an electronic device that may include a processor and a memory, wherein the processor and the memory may be interconnected via a bus or other means.
[0119] The processor can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application. It can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or other chips, or combinations of the above types of chips.
[0120] Memory may include mass storage for data or instructions. For example, and not limitingly, memory may include hard disk drives (HDDs), floppy disk drives, flash memory, optical disks, magneto-optical disks, magnetic tape, or Universal Serial Bus (USB) drives, or combinations of two or more of these. Where appropriate, memory may include removable or non-removable (or fixed) media. Where appropriate, memory may be internal or external to an electronic device. In a particular embodiment, memory may be non-volatile solid-state memory.
[0121] In one instance, the memory may be read-only memory (ROM). In one instance, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these.
[0122] The processor reads and executes computer program instructions stored in the memory to implement any of the converter slag suppression methods in the above embodiments.
[0123] In one example, the electronic device may further include a communication interface and a bus. The processor, memory, and communication interface are connected via the bus to communicate with each other. The communication interface is primarily used to enable communication between the various modules, devices, units, and / or equipment in the embodiments of this application. Where appropriate, the bus may include one or more buses.
[0124] Furthermore, in conjunction with the converter slag suppression methods in the above embodiments, this invention can be implemented using a computer-readable storage medium. This computer-readable storage medium stores computer program instructions; when executed by a processor, these computer program instructions implement any of the converter slag suppression methods in the above embodiments.
[0125] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. The storage medium can be read-only memory (ROM), random access memory (RAM), flash memory, hard disk drive (HDD), or solid-state drive (SSD), etc.; the storage medium can also include combinations of the above types of memory.
[0126] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:
[0127] This invention provides a method, apparatus, equipment, and medium for suppressing converter slag overflow. The method involves acquiring the actual duration of smelting in the current heat cycle to understand the smelting progress. If the actual duration falls within a preset slag overflow time range, it indicates that smelting has entered a period prone to slag overflow. The smelting parameters of the converter are then adjusted to target smelting parameters to suppress slag overflow. The current slag overflow characteristic value of the converter in the current heat cycle is acquired, characterizing the current slag overflow intensity to determine if slag overflow has actually occurred. If the current slag overflow characteristic value is greater than a preset characteristic value threshold, it indicates that slag overflow has actually occurred. The duration for which the current slag overflow characteristic value is greater than the characteristic value threshold is calculated to determine if slag overflow is under control. If the duration is greater than a preset duration threshold, it indicates that slag overflow has not been effectively controlled. An alarm is then triggered to notify the operator to initiate slag overflow suppression measures for further suppression. This method adjusts the smelting parameters of the converter when the actual smelting time of the converter enters the time range where slag overflow is likely to occur, and starts the anti-slag overflow operation in advance. If the effect of early suppression is not good, the operator is notified to perform manual suppression operation to further improve the slag overflow suppression effect.
[0128] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.
[0129] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be construed as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, inventive aspects lie in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into this detailed description, wherein each claim itself is a separate embodiment of the invention.
[0130] It should be noted that the above embodiments are illustrative of the invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.
Claims
1. A method for suppressing converter slag overflow, characterized in that, The method includes: The actual duration of the current furnace smelting is obtained, where the start time of the actual duration is the start time of the current furnace smelting and the end time is the current time. If the actual duration is within the preset slag overflow duration range, the smelting parameters of the converter are adjusted to the target smelting parameters, and the current slag overflow characteristic value of the converter in the current furnace is obtained. The current slag overflow characteristic value is used to characterize the current slag overflow intensity. If the current overflow slag characteristic value is greater than the preset characteristic value threshold, then calculate the duration for which the current overflow slag characteristic value is greater than the characteristic value threshold; If the duration exceeds a preset duration threshold, an alarm will be triggered to notify the operator to activate overflow suppression measures. The step of obtaining the current slag overflow characteristic value of the converter in the current heat includes: Obtain the current slag overflow image at the converter opening of the current furnace batch; The region of interest is cropped from the current overflow image; Determine the overflow area from the region of interest; Calculate the ratio of the area of the overflow region to the area of the region of interest to obtain the current overflow feature value; The method further includes: Obtain the historical slag overflow characteristic value of the converter in historical furnace cycles, wherein the historical furnace cycles are those preceding the current furnace cycle; Plot the curves showing how the historical slag overflow characteristic values change over time; Based on the curve, determine the time period in which the slag overflow occurred; Based on the time period, the duration range of the easily overflowing slag is determined.
2. The method for suppressing converter slag overflow according to claim 1, characterized in that, The overflow slag duration intervals include multiple segments, and different overflow slag duration intervals correspond to different target smelting parameters.
3. The method for suppressing converter slag overflow according to claim 1, characterized in that, The curve includes at least one peak during the time period in which the slag overflow occurs. After determining the time period in which the slag overflow occurs based on the curve, the method further includes: Based on the historical slag overflow characteristic values of the peaks within the time period, the target smelting parameters corresponding to the slag overflow duration interval are determined.
4. The method for suppressing converter slag overflow according to claim 3, characterized in that, The step of determining the target smelting parameters corresponding to the slag-prone duration interval based on the historical slag overflow characteristic values of the peaks within the time period includes: Integrate the historical slag overflow characteristic values within the time period to obtain the integral value for the time period; Based on the integral value of the time period and the historical slag overflow characteristic value of the peak within the time period, the target smelting parameters corresponding to the slag overflow duration interval are determined.
5. The method for suppressing converter slag overflow according to claim 1, characterized in that, After plotting the curve of the historical slag overflow characteristic value changing over time, the method further includes: Based on the curve, determine the number, intensity, and time period of slag overflow, as well as the maximum historical slag overflow characteristic value and the integral value of the historical slag overflow characteristic value within each time period, and determine the slag overflow suppression measures.
6. A converter slag overflow suppression device, characterized in that, The device includes: The first acquisition module is used to acquire the actual duration of the converter smelting in the current furnace, wherein the start time of the actual duration is the start time of the smelting in the current furnace, and the end time is the current time. The adjustment module is used to adjust the smelting parameters of the converter to the target smelting parameters if the actual duration is within a preset slag overflow duration range, and to obtain the current slag overflow characteristic value of the converter for the current heat, wherein the current slag overflow characteristic value is used to characterize the current slag overflow intensity. The calculation module is used to calculate the duration during which the current overflow slag characteristic value is greater than the preset characteristic value threshold if the current overflow slag characteristic value is greater than the characteristic value threshold. An alarm module is used to issue an alarm if the duration exceeds a preset duration threshold, so as to notify the operator to activate overflow suppression measures. The adjustment module is also used for: Obtain the current slag overflow image at the converter opening of the current furnace batch; Extract the region of interest from the current overflow image; Determine the overflow area from the region of interest; Calculate the ratio of the area of the overflow region to the area of the region of interest to obtain the current overflow characteristic value; The device further includes: The second acquisition module is used to acquire the historical slag overflow characteristic value of the converter in historical furnaces. The historical furnaces are the furnaces before the current furnace. The plotting module is used to plot the curves of historical slag overflow characteristic values over time. The first determining module is used to determine the time period during which slag overflow occurs based on the curve; The second determination module is used to determine the time interval of the slag overflow based on the time period.
7. An electronic device, characterized in that, include: A memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, the processor executing the computer instructions to perform the method of any one of claims 1-5.
8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to perform the method of any one of claims 1-5.