Method, device and readable storage medium for controlling slag splashing in a converter

Abstract

This application discloses a method, apparatus, and readable storage medium for controlling slag splashing in a converter, relating to the field of automation technology in iron and steel smelting. The method for controlling slag splashing in a converter includes: acquiring an image of the converter's opening area after the slag splashing time has reached a preset duration; determining the number and area of ​​slag particles from the opening area image; determining target operating parameters for the spray gun when the number of slag particles is less than a first quantity threshold and the slag particle area is less than a first area threshold; and controlling the spray gun to perform slag splashing operation according to the target operating parameters, so that the number of slag particles is greater than or equal to the first quantity threshold and the slag particle area is greater than or equal to the first area threshold. This application improves the slag splashing efficiency of the converter.

Description

Technical Field

[0001] This application relates to the field of automation technology in iron and steel smelting, and in particular to a control method, apparatus and readable storage medium for converter slag splashing. Background Technology

[0002] Currently, in converter steelmaking, the slag splashing process is crucial for improving converter production efficiency, extending converter lifespan, and reducing converter maintenance costs. At present, converter slag splashing mainly relies on operators' experience. However, due to variations in operator experience and skill levels, the actual slag splashing lance position and timing cannot be accurately quantified, leading to differences in slag splashing dynamics and significant fluctuations in the final splashing effect. Therefore, existing converter slag splashing control methods suffer from technical problems such as low splashing efficiency. Summary of the Invention

[0003] This application provides a method, apparatus, and readable storage medium for controlling converter slag splashing, which addresses technical problems such as low slag splashing efficiency in the prior art.

[0004] A first aspect of this application provides a method for controlling slag splashing in a converter, the converter including a spray gun, the method comprising: After the slag splashing time in the converter reaches the preset duration, an image of the converter mouth area is acquired; Determine the quantity and area of ​​slag particles in the converter from the image of the furnace mouth area; When the number of slag particles is less than a first quantity threshold and the area of ​​the slag particles is less than a first area threshold, the target operating parameters of the spray gun are determined. The spray gun is controlled to perform slag splashing operation according to the target operating parameters, so that the number of slag particles is greater than or equal to the first quantity threshold and the area of ​​the slag particles is greater than or equal to the first area threshold.

[0005] The converter slag splashing control method in this embodiment continuously acquires images of the converter's furnace mouth area during the slag splashing process. By performing slag particle identification processing on the furnace mouth area images, the number and area of ​​slag particles in the converter can be determined in real time. Furthermore, the operating parameters of the spray gun can be adjusted quickly and instantly based on the number and area of ​​slag particles, thus shortening the parameter adjustment time of the spray gun and ensuring the slag splashing efficiency of the converter.

[0006] A second aspect of this application provides a control device for slag splashing in a converter, the converter including a spray gun, the device comprising: The acquisition unit is used to acquire an image of the converter mouth area after the slag splashing time of the converter has reached a preset duration. The first processing unit is used to determine the number and area of ​​slag particles in the converter from the image of the furnace mouth area. The second processing unit is used to determine the target operating parameters of the spray gun when the number of slag particles is less than a first quantity threshold and the area of ​​the slag particles is less than a first area threshold. The control unit is used to control the spray gun to perform slag splashing operation according to the target operating parameters, so that the number of slag particles is greater than or equal to a first quantity threshold and the area of ​​the slag particles is greater than or equal to a first area threshold.

[0007] The converter slag splashing control device in this embodiment continuously acquires images of the converter's furnace mouth area during the converter slag splashing process. By performing slag particle identification processing on the furnace mouth area images, it can determine the number and area of ​​slag particles in the converter in real time, and can adjust the operating parameters of the spray gun immediately and quickly based on the number and area of ​​slag particles, thus shortening the parameter adjustment time of the spray gun and ensuring the slag splashing efficiency of the converter.

[0008] A third aspect of this application provides another converter slag splashing control device, including a processor and a memory. The memory stores a computer program, which, when executed by the processor, implements the steps of the converter slag splashing control method as described in any of the above embodiments. Therefore, this converter slag splashing control device possesses all the beneficial effects of the converter slag splashing control method in any of the above embodiments, and will not be elaborated further here.

[0009] A fourth aspect of this application provides a readable storage medium storing a program or instructions that, when executed by a processor, implement the steps of the converter slag splashing control method as described in any of the above embodiments. Therefore, this readable storage medium possesses all the beneficial effects of the converter slag splashing control method in any of the above embodiments, which will not be elaborated further here. Attached Figure Description

[0010] 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 A flowchart of a converter slag splashing control method provided in an embodiment of this application; Figure 2 This is a functional block diagram of the converter slag splashing control device provided in the embodiments of this application; Figure 3 This is a structural block diagram of the converter slag splashing control device provided in an embodiment of this application. Detailed Implementation

[0012] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0013] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying 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 limitation, 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. The term "two or more" includes two or more cases.

[0014] In some embodiments, such as Figure 1 As shown in the embodiments of this application, a method for controlling converter slag splashing is provided, including: Step S101: After the slag splashing time in the converter reaches the preset duration, acquire an image of the converter's furnace mouth area; Step S102: Determine the number and area of ​​slag particles in the converter from the furnace mouth area image; Step S103: When the number of slag particles is less than the first quantity threshold and the area of ​​the slag particles is less than the first area threshold, determine the target operating parameters of the spray gun. Step S104: Control the spray gun to perform slag splashing operation according to the target operating parameters, so that the number of slag particles is greater than or equal to the first quantity threshold and the area of ​​the slag particles is greater than or equal to the first area threshold.

[0015] This embodiment proposes a method for controlling slag splashing in a converter, which can quantify the slag splashing state inside the converter and quantitatively measure the slag splashing effect. The converter is a core piece of equipment in steelmaking, converting molten iron into molten steel through oxygen blowing. The converter includes a spray lance, which is the core equipment of the converter, spraying slag particles with high-pressure gas, directly affecting the quality and yield of steel.

[0016] For example, a converter consists of a furnace shell, a furnace lining (refractory material), and a tilting mechanism.

[0017] Converter slag splashing is a key technology for extending the life of furnace linings in steelmaking. It uses high-pressure nitrogen gas to splash magnesium oxide-containing terminal slag onto the surface of the furnace lining, forming a protective layer to resist high-temperature erosion.

[0018] The furnace shell is the skeleton of the converter, responsible for bearing the weight of the entire equipment and withstanding the high temperature, high pressure and mechanical impact during the smelting process. It is usually made of high-strength steel to ensure structural stability.

[0019] The furnace lining (refractory material) is in direct contact with the high-temperature molten metal, protecting the furnace shell from burning and reducing heat loss. It is crucial to smelting efficiency and furnace life.

[0020] The tilting mechanism is responsible for controlling the tilting of the converter to realize operations such as feeding, tapping, and slag removal. It is a key power component for converter operation.

[0021] The three parts work together to ensure that the converter can complete the smelting task efficiently and safely.

[0022] For example, a spray gun includes a nozzle, a body, and a tail.

[0023] The nozzle is the core component, usually made of copper, and is responsible for atomizing oxygen and precisely spraying it into the molten pool, directly affecting smelting efficiency.

[0024] The nozzle body is welded from three layers of concentric seamless steel pipes. The inner pipe carries oxygen, while the middle and outer layers form a cooling water circulation channel to ensure that the nozzle works stably at high temperatures.

[0025] The nozzle connects to the oxygen and cooling water pipelines, and achieves stable oxygen supply and cooling through flanges and sealing rings, serving as the power center of the entire system.

[0026] After the slag splashing time in the converter reaches the preset duration, an image of the converter's furnace mouth area is acquired. The preset duration is the preset duration of the slag splashing process, and the furnace mouth area image is a real-time image of the converter's furnace mouth.

[0027] For example, the preset duration can be specifically 1.5 minutes.

[0028] After the slag splashing begins in the converter, the amount of slag particles inside the converter will gradually increase. When the slag splashing time in the converter reaches 1.5 minutes, the slag particles inside the converter can be identified.

[0029] For example, the furnace opening of the converter is equipped with an image sensor, which can acquire images of the furnace opening area in real time.

[0030] For example, an image sensor can be used to collect video data of the furnace opening in real time, and one frame of image can be extracted from the video data per second to obtain an image of the furnace opening area.

[0031] For example, the furnace opening area image can be a two-dimensional image of the converter furnace opening. The two-dimensional image can be a grayscale image, which has higher processing efficiency and stronger real-time performance.

[0032] Meanwhile, two-dimensional images have a small data size, offering significant advantages in storage and transmission. They can be uploaded and downloaded quickly, facilitating sharing across various devices. Furthermore, they occupy relatively little storage space, reducing storage costs. Additionally, two-dimensional images offer better visual presentation, directly displaying slag particle information in the furnace mouth area.

[0033] For example, the furnace opening area image can be a three-dimensional image of the converter furnace opening.

[0034] Three-dimensional images have good data integrity and a strong sense of realism, accurately presenting information such as the shape, size, position, and surface features of objects. This sense of realism can be further enhanced through three-dimensional image processing.

[0035] The three-dimensional images contain rich spatial information, including the depth information of the converter, which is very important for understanding the spatial structure and positional relationships of the converter.

[0036] The 3D image supports virtual operation and simulation, and can build a 3D model of slag particles, and perform various virtual operations and simulation experiments on the 3D model of slag particles.

[0037] Three-dimensional images offer strong data interactivity. They contain depth information about slag particles, allowing for the display of complete information about slag particles in the converter and providing users with a better temporary interactive experience.

[0038] The image of the furnace mouth area is processed for slag particle identification to determine the number and area of ​​slag particles in the converter. The number of slag particles represents the quantity of slag particles on the converter, and the area of ​​slag particles represents the distribution area of ​​slag particles on the converter.

[0039] For example, the furnace mouth area image can be converted into a grayscale histogram. The grayscale histogram can improve recognition efficiency. Feature extraction can be performed on the grayscale histogram to determine the slag particles in the furnace mouth area image, and then the number and area of ​​slag particles can be counted. This ensures the efficiency of determining the number and area of ​​slag particles.

[0040] For example, the quantity and area of ​​slag particles in a furnace mouth area image can be determined using a convolutional neural network (CNN). The CNN consists of convolutional layers, pooling layers, and fully connected layers. The convolutional layers use 3×3 kernels and support activation functions to maintain the input size of the furnace mouth area image. The pooling layers use 2×2 max pooling to reduce the feature map size of the furnace mouth area image. The CNN accurately identifies the quantity and area of ​​slag particles in the furnace mouth area image, ensuring the accuracy of these data.

[0041] For example, the number of slag particles can be specifically 10, 30, or 50. A larger number of slag particles indicates a better slag splashing effect in the converter.

[0042] For example, the area of ​​the slag particles can be specifically 30 unit areas, 60 unit areas, or 90 unit areas.

[0043] The unit area can be specifically defined as the area of ​​a single pixel in the image of the furnace opening area.

[0044] The unit area can be specifically defined as the area of ​​a 3×3 pixel matrix in the image of the furnace opening area.

[0045] The unit area can be specifically defined as the area of ​​a 9×9 pixel matrix in the furnace opening area image.

[0046] For example, the number of slag particles is proportional to the area of ​​the slag particles.

[0047] Obtain the preset first quantity threshold and first area threshold.

[0048] For example, a first quantity threshold and a first area threshold can be determined based on the historical operating data of the converter.

[0049] For example, during the historical operation of the converter, the slag splashing effect of the converter is actually evaluated. If the slag splashing effect is good, the actual number of slag particles in the converter is determined as a first quantity threshold, and the actual slag particle area in the converter is determined as a first quantity area.

[0050] For example, when the slag splashing effect is good, the slag particles inside the converter are measured to obtain the actual slag particle area (unit: square centimeters), and the actual slag particle area is converted into a first quantity area according to the correspondence between the actual area and the image pixel area.

[0051] For example, the first quantity threshold can be specifically 30.

[0052] For example, the first area threshold can be specifically 60 units of area.

[0053] If the number of slag particles is less than the first quantity threshold and the area of ​​the slag particles is less than the first area threshold, it indicates that the slag splashing effect of the spray gun is abnormal, and it is necessary to determine the target operating parameters of the spray gun. The target operating parameters are the operating parameters that the spray gun needs to be set.

[0054] For example, an abnormal slag splashing effect may be caused by incorrect spray position of the spray gun or incorrect nitrogen flow rate, which requires adjustment of the spray position of the spray gun or nitrogen flow rate.

[0055] For example, when the slag splashing effect of the spray gun is abnormal, an effective protective layer cannot be formed on the converter lining, which will directly affect the converter's service life and output.

[0056] The spray gun is controlled to perform slag splashing operation according to the target operating parameters, so that the number of slag particles is greater than or equal to the first quantity threshold and the area of ​​the slag particles is greater than or equal to the first area threshold.

[0057] For example, the position of the spray gun is a core parameter for slag splashing and furnace lining protection. If the position of the spray gun is too low or too high, it will directly affect the slag splashing effect and furnace lining protection.

[0058] Specifically, if the spray lance is positioned too low, the impact force is greater, resulting in higher energy slag particles that can splash onto the furnace opening, but this may increase the risk of furnace bottom rise. If the spray lance is positioned too high, the slag splashing point is lower, making it easier to wash away slag particles that have already splashed onto the furnace wall, leading to a rise in furnace runs. Therefore, both excessively low and excessively high spray lance positions will result in insufficient slag quantity and area. The spray lance needs to be adjusted to the optimal spray position.

[0059] For example, the spray gun flow rate is a core parameter for slag splashing and furnace lining protection, directly affecting the slag splashing effect and furnace lining protection. Too low or too high a spray gun flow rate will directly affect the slag splashing effect and furnace lining protection.

[0060] Specifically, when the lance flow rate is too low, the impact force of the lance is insufficient, resulting in lower energy of the slag particles and uneven slag layer distribution. When the lance flow rate is too high, the impact force of the lance is excessive, which may create locally thick areas and increase the risk of furnace bottom rise.

[0061] For example, if the number of slag particles is greater than or equal to a first quantity threshold and the area of ​​the slag particles is greater than or equal to a first area threshold, it indicates that the slag splashing effect of the spray gun is normal. The spray gun is then controlled to continuously perform slag splashing operation according to the target operating parameters. At the same time, images of the converter's furnace mouth area are continuously collected to continuously monitor the converter.

[0062] It should be noted that in this embodiment, during the slag splashing process in the converter, images of the converter's opening area are continuously collected. By performing slag particle identification processing on the images of the opening area, the number and area of ​​slag particles in the converter can be determined in real time. The operating parameters of the spray gun can be adjusted quickly and instantly based on the number and area of ​​slag particles, thus shortening the parameter adjustment time of the spray gun and ensuring the slag splashing efficiency of the converter.

[0063] In addition, this embodiment can accurately determine the number and area of ​​slag particles in the converter by recognizing the image of the furnace mouth area, ensuring the accuracy of the data on the number and area of ​​slag particles. When the number of slag particles is greater than or equal to the first quantity threshold and the area of ​​slag particles is greater than or equal to the first area threshold, the slag splashing effect of the converter can be guaranteed, the service life of the converter can be extended, and the output of the converter can be increased.

[0064] In some embodiments, this application provides a method for controlling converter slag splashing, which determines the number and area of ​​slag particles in the converter from an image of the furnace mouth area, including: Determine the effective region image from the furnace opening area image; The number and area of ​​slag particles are determined from the effective area image.

[0065] In this embodiment, slag particles in the furnace mouth area image are identified, and a valid area image in the furnace mouth area image is determined, wherein the valid area image is the area image in the furnace mouth area image containing slag particles.

[0066] For example, slag particles in a furnace mouth area image can be identified based on their geometric features, thus determining the effective area image within the furnace mouth area. Geometric features include shape and contour characteristics. The aforementioned processing method offers advantages such as fast processing speed and high recognition accuracy. Furthermore, geometric features are highly scalable, extending to slag particles with complex shapes.

[0067] For example, slag particles in the furnace mouth area image can be identified based on the surface texture characteristics of the slag particles, thus determining the effective area image within the furnace mouth area image. The above processing method has advantages such as high recognition accuracy and small error.

[0068] For example, slag particles in the furnace mouth area image can be identified based on their color characteristics, thus determining the effective area image within the furnace mouth area image. The above processing method has advantages such as strong adaptability and wide applicability.

[0069] The number of slag particles in the effective area image is counted to obtain the number of slag particles, and the area of ​​slag particles in the effective area image is counted to obtain the area of ​​slag particles.

[0070] For example, a slag splash feature enhancement technique based on a combination of morphological difference and dynamic threshold is used to identify the number and area of ​​slag particles in real time. For example, the number of slag particles can be the total number of slag particles in the effective area image.

[0071] For example, the slag particle area can be the total area of ​​slag particles in the effective region image.

[0072] In some embodiments, this application provides a method for controlling converter slag splashing, which determines an effective area image from a furnace mouth area image, including: Determine the slag particle distribution area from the furnace mouth area image; Based on the slag particle distribution area, the furnace mouth area image is cropped to obtain an effective area image.

[0073] In this embodiment, by locating slag particles on the furnace mouth area image, the distribution area of ​​slag particles in the furnace mouth area image can be determined, wherein the slag particle distribution area is the distribution area of ​​slag particles in the furnace mouth area image.

[0074] For example, a feature recognition model can be used to identify the slag particle distribution area in the furnace mouth area image.

[0075] For example, when slag particles are identified in the furnace mouth area image, the location information of the slag particles is determined. Based on the location information of the slag particles, the distribution of the slag particles can be determined, and thus the distribution area of ​​the slag particles in the furnace mouth area image can be determined.

[0076] Based on the slag particle distribution area, the furnace mouth area image is cropped to obtain an effective area image.

[0077] In some embodiments, this application provides a method for controlling converter slag splashing, which determines target operating parameters for the spray gun, including: Obtain the steel grade type of the steel produced in the converter; Determine the corresponding slag splashing mode for the converter based on the type of steel. Determine the target operating parameters based on the slag splashing pattern.

[0078] In this embodiment, the steel grade type of the steel in the converter is determined, wherein the steel grade type represents the steel grade of the steel smelted in the converter.

[0079] For example, the steel type can be steel type A, steel type B, steel type C or steel type D.

[0080] Based on the type of steel, the corresponding slag splashing mode for the converter is determined, where the slag splashing mode represents the mode of the converter slag splashing process.

[0081] For example, there is a preset correspondence between steel type and slag splashing mode. Based on the preset correspondence, the slag splashing mode corresponding to the steel type can be determined.

[0082] For example, the slag splashing mode can be specifically a converter with less slag and a smelting method that does not consume solid waste.

[0083] For example, the slag splashing mode can specifically be a converter slag-forming smelting method.

[0084] For example, the slag splashing mode can specifically be the converter slag sticking and the residual steel tapping mode.

[0085] For example, the slag splashing mode can specifically be a converter smelting method that uses solid waste.

[0086] For example, the slag splashing mode can be specifically a converter smelting method with a large amount of slag.

[0087] Determine the target operating parameters based on the slag splashing pattern.

[0088] For example, the ideal operating parameters of the spray gun can be determined under different splatter modes.

[0089] In some embodiments, this application provides a method for controlling converter slag splashing, wherein the target operating parameters include a target nitrogen flow rate and a target lance position. The target operating parameters are determined based on the slag splashing pattern, including: Based on the splatter pattern, determine the parameter list of the spray gun. The parameter list includes multiple splatter times, multiple nitrogen flow rates, and multiple gun positions. The nitrogen flow rate, splatter time, and gun position correspond one-to-one. Obtain the actual splatter time corresponding to the spray gun; Based on the actual slag splashing time and parameter list, the target nitrogen flow rate and target gun position are determined.

[0090] In this embodiment, the target operating parameters include the target nitrogen flow rate and the target gun position, wherein the target nitrogen flow rate is the optimal nitrogen flow rate of the spray gun, and the target gun position is the optimal gun position of the spray gun.

[0091] For example, the target nitrogen flow rate can be the theoretically optimal nitrogen flow rate of the spray gun.

[0092] For example, the target gun position can be the theoretically optimal gun position of the spray gun.

[0093] Based on the splatter pattern, determine the parameter list of the spray gun. The parameter list includes multiple splatter times, multiple nitrogen flow rates, and multiple gun positions. The multiple nitrogen flow rates correspond one-to-one with the multiple splatter times, and the multiple gun positions correspond one-to-one with the multiple splatter times.

[0094] For example, the unit of time for slag splashing can be seconds.

[0095] For example, the unit of nitrogen flow rate can be specifically Nm³. 3 / h.

[0096] For example, the unit for the gun body position can be mm.

[0097] Obtain the preset slag splashing time corresponding to the spray gun. By comparing the preset slag splashing time and multiple slag splashing times, determine the target nitrogen flow rate among multiple nitrogen flow rates and the target gun position among multiple gun positions.

[0098] For example, the correspondence between steel type and slag splashing mode is shown in Table 1.

[0099] Table 1

[0100] The parameter correspondence in pattern table 1 is shown in Table 2, the parameter correspondence in pattern table 2 is shown in Table 3, the parameter correspondence in pattern table 3 is shown in Table 4, the parameter correspondence in pattern table 4 is shown in Table 5, and the parameter correspondence in pattern table 5 is shown in Table 6.

[0101] Table 2

[0102] Table 3

[0103] Table 4

[0104] Table 5

[0105] Table 6

[0106] For example, an automatic slag splashing mode table is established: Based on experience and the different converter smelting methods for different steel grades, a control table for oxygen lance position and nitrogen flow rate at different slag splashing stages is established. The oxygen lance position ranges from 1080 to 1200 mm, and the nitrogen flow rate is 50,000 to 55,000 Nm³ / h. Steel grade A is smelting with low slag and no solid waste in the converter; steel grade B is smelting with slag-forming in the converter; steel grade C is smelting with slag-forming and residual steel at tapping; steel grade D is smelting with solid waste in the converter; and steel grade E is smelting with high slag volume in the converter.

[0107] In some embodiments, this application provides a method for controlling converter slag splashing. After controlling the spray gun to perform slag splashing operation according to target operating parameters, the method further includes: If the number of slag particles is less than the second quantity threshold and the area of ​​the slag particles is less than the second area threshold, control the spray gun to stop working. The second quantity threshold is less than the first quantity threshold, and the second area threshold is less than the first area threshold.

[0108] In this embodiment, a second quantity threshold and a second area threshold are obtained, wherein the second quantity threshold is less than the first quantity threshold and the second area threshold is less than the first area threshold.

[0109] For example, the second quantity threshold can be specifically 3.

[0110] For example, the second area threshold can be specifically 10 units of area.

[0111] If the number of slag particles is less than the second quantity threshold and the area of ​​the slag particles is less than the second area threshold, the spray gun will stop working.

[0112] For example, after slag splashing begins, the spray gun position and nitrogen flow rate are automatically controlled using a slag splashing mode table. During this period, visual perception is used to automatically detect the slag splashing effect, dynamically control the spray gun position, and determine when the slag splashing ends, then lift the gun to stop the slag splashing.

[0113] In some embodiments of this application, a method for controlling slag splashing in a converter is provided. The converter is equipped with a display screen. After determining the number and area of ​​slag particles in the converter based on an image of the furnace mouth area, the method further includes: The slag particles in the furnace mouth area image are labeled, and the distribution area of ​​the slag particles is also labeled to obtain a visual image; Control the display screen to show visual images.

[0114] In this embodiment, the converter is equipped with a display screen, which is a screen capable of displaying an image of the furnace opening area.

[0115] For example, the display screen can be a touch plane, which can be used for user display interaction.

[0116] The slag particles in the furnace mouth area image are labeled, and the distribution area of ​​the slag particles is also labeled. The furnace mouth area image is then updated to a visualized image, which is an image that can be displayed.

[0117] For example, the number and area of ​​slag particles can be clearly displayed by showing a visual image.

[0118] For example, the distribution area of ​​slag particles in the converter can be clearly shown by displaying a visual image.

[0119] For example, slag particles in a converter can be clearly displayed by showing a visual image.

[0120] In some embodiments, such as Figure 2 As shown, an embodiment of this application provides a converter slag splashing control device 200, comprising: The acquisition unit 202 is used to acquire an image of the furnace mouth area of ​​the converter after the slag splashing time of the converter has reached a preset duration. The first processing unit 204 is used to determine the number and area of ​​slag particles in the converter from the furnace mouth area image. The second processing unit 206 is used to determine the target operating parameters of the spray gun when the number of slag particles is less than a first quantity threshold and the area of ​​the slag particles is less than a first area threshold. The control unit 208 is used to control the spray gun to perform slag splashing operation according to the target operating parameters, so that the number of slag particles is greater than or equal to a first quantity threshold and the area of ​​the slag particles is greater than or equal to a first area threshold.

[0121] The converter slag splashing control device 200 in this embodiment can accurately determine the number and area of ​​slag particles in the converter by recognizing the image of the furnace mouth area, ensuring the accuracy of the data on the number and area of ​​slag particles. Under the condition that the number of slag particles is greater than or equal to the first quantity threshold and the area of ​​slag particles is greater than or equal to the first area threshold, the slag splashing effect of the converter can be guaranteed, the service life of the converter can be extended, and the output of the converter can be increased.

[0122] In some embodiments of this application, a converter slag splashing control device 200 is provided, wherein the first processing unit 204 is further configured to: Determine the effective region image from the furnace opening area image; The number and area of ​​slag particles are determined from the effective area image.

[0123] In some embodiments of this application, a converter slag splashing control device 200 is provided, wherein the first processing unit 204 is further configured to: Determine the slag particle distribution area from the furnace mouth area image; Based on the slag particle distribution area, the furnace mouth area image is cropped to obtain an effective area image.

[0124] In some embodiments of this application, a converter slag splashing control device 200 is provided, and the second processing unit 206 is further configured to: Obtain the steel grade type of the steel produced in the converter; Determine the corresponding slag splashing mode for the converter based on the type of steel. Determine the target operating parameters based on the slag splashing pattern.

[0125] In some embodiments of this application, a converter slag splashing control device 200 is provided, and the second processing unit 206 is further configured to: Based on the splatter pattern, determine the parameter list of the spray gun. The parameter list includes multiple splatter times, multiple nitrogen flow rates, and multiple gun positions. The nitrogen flow rate, splatter time, and gun position correspond one-to-one. Obtain the actual splatter time corresponding to the spray gun; Based on the actual slag splashing time and parameter list, the target nitrogen flow rate and target gun position are determined.

[0126] In some embodiments, this application provides a converter slag splashing control device 200, which further includes a stop unit for: If the number of slag particles is less than the second quantity threshold and the area of ​​the slag particles is less than the second area threshold, control the spray gun to stop working. The second quantity threshold is less than the first quantity threshold, and the second area threshold is less than the first area threshold.

[0127] In some embodiments of this application, a converter slag splashing control device 200 is provided, which further includes a display unit for: The slag particles in the furnace mouth area image are labeled, and the distribution area of ​​the slag particles is also labeled to obtain a visual image; Control the display screen to show visual images.

[0128] In some embodiments, such as Figure 3 As shown, a converter slag splashing control device 300 is proposed. The converter slag splashing control device 300 includes a processor 302 and a memory 304. The memory 304 stores a computer program, which, when executed by the processor 302, implements the steps of the converter slag splashing control method as described in any of the above embodiments. Therefore, the converter slag splashing control device 300 possesses all the beneficial effects of the converter slag splashing control method in any of the above embodiments, which will not be elaborated further here.

[0129] In some embodiments, a readable storage medium is provided having a program stored thereon, which, when executed by a processor, implements the steps of the converter slag splashing control method as described in any of the above embodiments, and thus has all the beneficial technical effects of the converter slag splashing control method as described in any of the above embodiments.

[0130] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0131] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-readable program code.

[0132] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1A device that provides the functions specified in one or more boxes.

[0133] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0134] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0135] This application also provides a computer program product, which includes computer software instructions that, when executed on a processing device, cause the processing device to perform a process of controlling converter slag splashing.

[0136] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0137] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0138] In the several embodiments provided in this application, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms.

[0139] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0140] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0141] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0142] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0143] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0144] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. A method for controlling slag splashing in a converter, characterized in that, The converter includes a spray gun, and the method includes: After the slag splashing time in the converter reaches a preset duration, an image of the converter mouth area is acquired. The quantity and area of ​​slag particles in the converter are determined from the image of the furnace mouth area. When the number of slag particles is less than a first quantity threshold and the area of ​​the slag particles is less than a first area threshold, the target operating parameters of the spray gun are determined. The spray gun is controlled to perform slag splashing operation according to the target operating parameters, so that the number of slag particles is greater than or equal to the first quantity threshold and the area of ​​the slag particles is greater than or equal to the first area threshold.

2. The method according to claim 1, characterized in that, Determining the quantity and area of ​​slag particles from the furnace mouth area image includes: Determine the valid region image from the furnace opening region image; The number and area of ​​the slag particles are determined from the effective area image.

3. The method according to claim 2, characterized in that, Determining the effective region image from the furnace opening region image includes: Determine the slag particle distribution area from the furnace mouth area image; Based on the slag particle distribution area, the image of the furnace mouth area is cropped to obtain the effective area image.

4. The method according to claim 1, characterized in that, Determining the target operating parameters of the spray gun includes: Obtain the steel type of the steel in the converter; The slag splashing mode corresponding to the converter is determined based on the steel type. The target operating parameters are determined based on the slag splashing pattern.

5. The method according to claim 4, characterized in that, The target operating parameters include the target nitrogen flow rate and the target gun body position. Determining the target operating parameters based on the slag splashing pattern includes: Based on the slag splashing mode, a parameter list for the spray gun is determined. The parameter list includes multiple slag splashing times, multiple nitrogen flow rates, and multiple gun body positions, with the nitrogen flow rate, slag splashing time, and gun body position corresponding one-to-one. The actual slag splashing time corresponding to the spray gun is then obtained. Based on the actual slag splashing time and the parameter list, the target nitrogen flow rate and the target gun position are determined.

6. The method according to any one of claims 1 to 5, characterized in that, After controlling the spray gun to perform slag splashing operation according to the target operating parameters, the method further includes: If the number of slag particles is less than a second quantity threshold and the area of ​​the slag particles is less than a second area threshold, the spray gun is controlled to stop working. The second quantity threshold is less than the first quantity threshold, and the second area threshold is less than the first area threshold.

7. The method according to any one of claims 1 to 5, characterized in that, The converter is equipped with a display screen. After determining the quantity and area of ​​slag particles in the converter based on the image of the furnace opening area, the method further includes: The slag particles in the furnace mouth area image are labeled, and the distribution area of ​​the slag particles is labeled to obtain a visual image; Control the display screen to display the visualized image.

8. A control device for slag splashing in a converter, characterized in that, The converter includes a spray gun, and the device includes: The acquisition unit is used to acquire an image of the furnace mouth area of ​​the converter after the slag splashing time of the converter has reached a preset duration. The first processing unit is used to determine the number and area of ​​slag particles in the converter from the furnace mouth area image. The second processing unit is used to determine the target operating parameters of the spray gun when the number of slag particles is less than a first quantity threshold and the area of ​​the slag particles is less than a first area threshold. The control unit is used to control the spray gun to perform slag splashing operation according to the target operating parameters, so that the number of slag particles is greater than or equal to the first quantity threshold and the area of ​​the slag particles is greater than or equal to the first area threshold.

9. A control device for slag splashing in a converter, characterized in that, include: processor; A memory containing programs or instructions, wherein a processor, when executing the programs or instructions in the memory, implements the steps of the converter slag splashing control method as described in any one of claims 1 to 7.

10. A readable storage medium, characterized in that, A program or instruction is stored on a readable storage medium, which, when executed by a processor, implements the steps of the converter slag splashing control method as described in any one of claims 1 to 7.

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