Converter steel tapping control method and device

Abstract

An embodiment of the present application provides a method for controlling converter tapping, the method comprising: controlling the converter to rotate to an initial angle in response to a start-up instruction for converter tapping; obtaining the actual tapping weight of the converter and a preset tapping weight corresponding to the initial angle; if the actual tapping weight reaches the preset tapping weight, controlling the converter to rotate to a next angle at a target speed, and continuing to follow the steps of obtaining the actual tapping weight of the converter until tapping is completed. The technical solution of the embodiment of the present application can improve the stability of the converter tapping process, thereby reducing tapping slag and tapping slag overflow.

Description

Technical Field

[0001] The present application relates to the technical field of converter steel tapping, and in particular to a control method, device, storage medium and electronic equipment for converter steel tapping. Background Art

[0002] Currently, tapping from converters in China is mostly done manually, using joysticks to control converter tilting, molten steel car operation, and alloying operations. This frequent operation and poor coordination with steelmakers can easily lead to accidents such as slag spillage. With the advancement of automated control technology, automatic converter tapping has become an inevitable trend, and many companies have begun developing and implementing automatic tapping systems. Automatic tapping can effectively improve steelmaking success rates, reduce slag discharge from ladles, improve the working environment, and reduce labor intensity. However, the current use of automatic tapping in China lacks the flexibility of manual control and suffers from unstable automatic control logic. This often leads to excessive slag spillage at the furnace mouth and slag curling in the steel stream, impacting production and molten steel composition. Therefore, improving the stability of the converter tapping process and reducing slag curling and overflow is a pressing technical challenge. Summary of the Invention

[0003] The embodiments of the present application provide a control method, storage medium, device and electronic equipment for converter steel tapping, which can improve the stability of the converter steel tapping process to a certain extent, thereby reducing steel tapping slag and steel tapping slag overflow, improving the safety of converter steel tapping, and improving the quality of steel liquid.

[0004] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by practice of the present application.

[0005] According to the first aspect of the embodiment of the present application, a control method for tapping from a converter is provided, which controls the converter to rotate to an initial angle in response to a start-up instruction for tapping from the converter; obtains the actual tapping weight of the converter and a preset tapping weight corresponding to the initial angle; if the actual tapping weight reaches the preset tapping weight, controls the converter to rotate to a next angle at a target speed, and continues to execute the steps of obtaining the actual tapping weight of the converter until tapping is completed.

[0006] In some embodiments of the present application, based on the aforementioned scheme, the converter is controlled to rotate to a first angle at a first speed; the converter is controlled to rotate to a second angle, and the first speed is reduced to a second speed, and the second angle is greater than the first angle; the converter is controlled to rotate to an initial angle, and the second speed is reduced to a target speed, and the initial angle is greater than the second angle.

[0007] In some embodiments of the present application, based on the aforementioned scheme, the rotation angle range of the converter includes a first angle interval, a second angle interval and a third angle interval, the first angle interval is smaller than the second angle interval, and the second angle interval is smaller than the third angle interval. The method also includes: if the converter triggers a slag overflow alarm within the first angle interval, the converter is controlled to rotate to a first preset angle; if the converter triggers a slag overflow alarm within the second angle interval, the converter is controlled to stop rotating and wait; if the converter triggers a slag overflow alarm within the third angle interval, the converter is controlled to rotate to a second preset angle, and the second preset angle is smaller than the first preset angle.

[0008] In some embodiments of the present application, based on the aforementioned scheme, after controlling the converter to rotate to a first preset angle, the method further includes: if the slag overflow alarm is lifted within a preset time period, controlling the converter to rotate to a third angle at a third speed, the third angle being the next angle of the angle at which the converter triggers the slag overflow alarm, and the third speed being less than the target speed.

[0009] In some embodiments of the present application, based on the aforementioned scheme, the converter includes a slide plate, which is used to prevent slag overflow, and the process of until steel tapping is completed includes: until the converter triggers a slag detection alarm, controlling the converter to stop rotating and closing the slide plate.

[0010] In some embodiments of the present application, based on the aforementioned scheme, the current angle of the converter is detected; when it is detected that the converter rotates to a fourth angle, the converter is controlled to stop rotating and alloy is added to the converter, and the fourth angle is greater than the initial angle.

[0011] In some embodiments of the present application, based on the aforementioned scheme, the converter includes a slide plate, which is used to prevent slag overflow. The method also includes: detecting the current angle of the converter; when it is detected that the converter rotates to a preset angle, controlling the slide plate to close; when it is detected that the converter rotates to the initial angle, controlling the slide plate to open, and the preset angle is smaller than the initial angle.

[0012] According to a second aspect of an embodiment of the present application, a control device for tapping from a converter is provided, the device comprising: a response unit for controlling the converter to rotate to an initial angle in response to a start-up instruction for tapping from the converter; an acquisition unit for acquiring the actual tapping weight of the converter and a preset tapping weight corresponding to the initial angle; and a control unit for controlling the converter to rotate to a next angle at a target speed if the actual tapping weight reaches the preset tapping weight, and continuing to execute the steps of acquiring the actual tapping weight of the converter until tapping is completed.

[0013] According to a third aspect of an embodiment of the present application, a computer-readable storage medium is provided, characterized in that at least one program code is stored in the computer-readable storage medium, and the at least one program code is loaded and executed by a processor to implement the operations performed by the method described in any one of the first aspects above.

[0014] According to a fourth aspect of an embodiment of the present application, an electronic device is provided, comprising one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement the operations performed by the method described in any one of the first aspects above.

[0015] The technical solution of the present application is that when the start-up instruction of the converter tapping is received, the converter will rotate to the initial angle; when the converter reaches the initial angle, the actual tapping weight of the converter and the preset tapping weight corresponding to the initial angle will be obtained; if the actual tapping weight reaches the preset tapping weight, the converter will be controlled to rotate to the next angle according to the target speed, and continue to execute the steps of obtaining the actual tapping weight of the converter until the tapping is completed. It can be seen that in the technical solution of the present application, the preset tapping weight of the converter at each angle corresponding to each angle will be pre-set. When the converter rotates to each angle, the converter will continue to rotate to the next angle only when the actual tapping weight reaches the preset tapping weight. In this way, the converter can rotate smoothly during the tapping process, improve the flexibility of rotation, reduce tapping slag and tapping slag overflow, thereby improving the quality of molten steel tapped by the converter and reducing process costs.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are incorporated into and constitute a part of the specification, illustrating embodiments consistent with the present application and, together with the specification, explaining the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0018] Figure 1 A flow chart showing a method for controlling steel tapping from a converter according to one embodiment of the present application is shown;

[0019] Figure 2 A schematic diagram of a converter steel tapping process according to one embodiment of the present application is shown;

[0020] Figure 3A block diagram of a converter steel tapping control device according to an embodiment of the present application is shown;

[0021] Figure 4 A schematic diagram of the structure of a computer system suitable for implementing an electronic device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0022] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0023] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0024] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically separate entities. That is, these functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0025] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, while others may be combined or partially combined. Therefore, the actual execution order may vary depending on the actual situation.

[0026] It should be noted that the term "plurality" used in this document refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0027] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described.

[0028] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0029] The following will describe some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0030] See also Figure 1 , shows a flow chart of a method for controlling converter steel tapping according to an embodiment of the present application, specifically including steps 110 to 130.

[0031] Step 110: In response to a start instruction for tapping the converter, control the converter to rotate to an initial angle.

[0032] In some embodiments, the initial angle may be 76°, 77°, 78°, etc., preferably 76°. Specifically, this application does not limit this and may determine it according to actual conditions.

[0033] In order to make those skilled in the art better understand this embodiment, Figure 2 The rotation angle of the converter in the present application will be described.

[0034] See also Figure 2 , shows a schematic diagram of the process of steel tapping from a converter according to an embodiment of the present application.

[0035] Figure 2 (1) The position of the converter is the position when there is no steel tapping task, that is, zero degrees. When the converter receives the steel tapping start command, it will rotate to tap steel. It can be understood that Figure 2 (1) The converter can rotate counterclockwise to the left or clockwise to the right. Figure 2 (2) The angle A is the current position of the converter.

[0036] In some embodiments, the specific implementation of controlling the converter to rotate to the initial angle can be performed according to the following steps 111 to 113.

[0037] Step 111: Control the converter to rotate to a first angle at a first speed.

[0038] It is understood that when the converter is initially started up, the converter's rotation angle is relatively small, the amount of steel tapped is relatively small, and the probability of slag overflow and steel slag coiling is low. Therefore, in the initial stage of startup, the converter speed can be set to a higher speed to improve tapping efficiency. For example, the first speed can be set to 5° / s, 6° / s, 7° / s, etc., preferably 6° / s. The specific speed is not limited herein.

[0039] It should be noted that the first angle is smaller than the initial angle, for example, it can be 63°, 64°, 65°, etc., preferably 65°. Specifically, this application does not limit it here, and it can be determined according to actual conditions.

[0040] Step 112: Control the converter to rotate to a second angle, and reduce the first speed to a second speed, wherein the second angle is greater than the first angle.

[0041] In some embodiments, the second angle is smaller than the initial angle, for example, it can be set to 70°, 71°, 72°, 73°, etc., preferably 73°. Specifically, this application does not limit it here, and it can be determined according to actual conditions.

[0042] It should be noted that because the second angle is the angle at which the steel tapping rate increases as the converter approaches the second angle, the converter speed should be gradually reduced as it approaches the second angle from the first angle to reduce slag surge at the furnace mouth. Specifically, the second angle can be 2.4° / s, 2.5° / s, 2.6° / s, etc., preferably 2.5° / s, and this application does not limit this.

[0043] In some embodiments, the first speed can be reduced to the second speed in a manner of gradual uniform descent or in a gradient descent. For example, if the first angle is 65°, the second angle is 73°, the first speed is 6° / s, and the second speed is 2.5° / s; if it is reduced in a manner of gradual uniform descent, then in the process of the converter rotating from 65° to 73°, the corresponding converter speed will also gradually decrease from 6° / s to 2.5° / s. If it is reduced in a gradient descent, then the converter will start from 65° and rotate to 70° at 6° / s, then from 70° to 72° at 4° / s, and finally from 72° to 73° at 2.5° / s. Specifically, this application does not limit how the first speed is reduced to the second angle.

[0044] Step 113: Control the converter to rotate to an initial angle, and reduce the second speed to a target speed, wherein the initial angle is greater than the second angle.

[0045] In some embodiments, the second speed can be reduced to the target speed by gradually decreasing at a uniform speed or by decreasing at a gradient. The specific embodiment is not limited in this application. If the second angle is 73°, the initial angle is 76°, the second speed is 2.5° / s, and the target speed is 0.5° / s, then the preferred embodiment of reducing the second speed to the target speed is to reduce the speed from 73° to 74° from 2.5° / s to 1.5° / s; then reduce the speed from 74° to 75° from 1.5° / s to 1° / s; and then reduce the speed from 75° to 76° from 1° / s to 0.5° / s.

[0046] In this embodiment, by controlling the converter speed to rotate to the initial angle in a gradually decreasing manner, slag discharge in the early stage can be reduced and slag overflow at the furnace mouth caused by rapid furnace shaking can be avoided.

[0047] Continue to see Figure 1 , step 120, obtaining the actual steel tapping weight of the converter and the preset steel tapping weight corresponding to the initial angle.

[0048] In some embodiments, the converter tapping process can be divided into a single-speed mode and a dual-speed mode based on the contractual requirements for molten steel quality. If the contractual requirements for molten steel quality are higher, the converter tapping process is performed in the dual-speed mode; if the contractual requirements for molten steel quality are lower, the converter tapping process is performed in the single-speed mode.

[0049] In some embodiments, a slide is installed in the converter to prevent slag overflow and is typically mounted at the converter window. The difference between the dual-speed mode and the single-speed mode is that the single-speed mode does not initiate the slide closing command during the entire converter tapping process, but only activates the slide closing command upon completion of tapping. In contrast, the dual-speed mode activates both the slide closing and slide opening commands once during the converter tapping process. Specifically, the dual-speed mode can be executed according to steps 1 to 3 below.

[0050] Step 1: Detect the current angle of the converter.

[0051] Step 2: When it is detected that the converter rotates to a preset angle, the slide is controlled to close.

[0052] Step 3: When it is detected that the converter rotates to the initial angle, the slide is controlled to open, and the preset angle is smaller than the initial angle.

[0053] In a preferred embodiment, the converter is controlled to automatically close the slide at 25°, i.e., the preset angle is set to 25°, and the converter is controlled to open the slide at 76°, i.e., the initial angle is 76°. It will be appreciated that closing the slide before the converter reaches the initial angle effectively blocks the front slag, preventing it from transferring to the molten steel car, thereby improving molten steel quality and achieving the high molten steel requirements specified in customer contracts.

[0054] Continuing with step 120, in some embodiments, a converter tapping pattern table can be pre-set based on factors such as the single-speed mode and the dual-speed mode, as well as the age of the converter. The converter tapping pattern table includes various converter rotation angles and preset tapping weights corresponding to the angles. For example, Table 1 below illustrates a converter tapping pattern table suitable for controlling the converter tapping process in the dual-speed mode.

[0055]

[0056] Table 1

[0057] It should be noted that the 76° set in Table 1 is the initial angle, and the rotation angle of the converter includes various rotation angles between 76° and 100°. It can be seen from Table 1 that the preset steel tapping weight corresponding to each rotation angle is different, and the preset steel tapping weight is positively correlated with the rotation angle. In the converter steel tapping process, two converter steel tapping mode tables can be set for each converter device, one for single-speed mode and one for double-speed mode. Specifically, the converter steel tapping mode table and the parameters in the mode table can also be designed according to actual conditions, and this application does not limit them here.

[0058] Continuing with step 120, it should be noted that a molten steel car is present in the converter tapping process to receive the molten steel pouring out of the converter. It is understood that the molten steel car changes position as the converter rotates at different angles, so that the molten steel pouring out of the converter is accurately received by the molten steel car.

[0059] In some embodiments, a weight sensor may be installed on the molten steel car, and the weight sensor is used to detect the weight of the molten steel in the molten steel car in real time, that is, the actual weight of steel tapped from the converter.

[0060] Continue to see Figure 1 In step 130, if the actual tapping weight reaches the preset tapping weight, the converter is controlled to rotate to the next angle at the target speed, and the steps of obtaining the actual tapping weight of the converter are continued until tapping is completed.

[0061] For example, referring to Table 1, 76° is used as the initial angle, and the corresponding preset tapping weight is 1 ton. If the actual tapping weight detected by the molten steel car reaches 1 ton, the converter will be controlled to rotate to 77°, that is, 77° here is the next angle. When the converter rotates to 77°, the actual tapping weight of the converter at 77° is also obtained. If it reaches 5 tons, the converter will continue to be controlled to rotate to 78° at the target speed, and the actual tapping weight of the converter at 78° is obtained. This process is repeated until tapping is completed.

[0062] In some embodiments, the specific implementation method of the step of completing the steel tapping is to control the converter to stop rotating and close the slide plate until the converter triggers a slag detection alarm.

[0063] In some embodiments, the specific implementation of the slag detection alarm is to install an infrared camera to collect image data of the converter window. If slag appears in the converter window, an alarm is activated, that is, the slag detection alarm is triggered.

[0064] In some embodiments, if the actual tapping weight exceeds 200 tons, that is, if converter tapping control is executed according to the mode table set in Table 1, a slag drop detection alarm will be generated after the converter reaches 103° and continues for a certain period of time, such as 13 seconds. It is understood that the actual tapping weight at the completion of converter tapping may be greater than the corresponding preset tapping weight in the mode table. For example, if the method in Table 1 is used, the actual tapping weight at the completion of tapping may be greater than 203 tons.

[0065] It should be noted that the slide plate is installed in the converter to prevent slag overflow. If the actual steel tapping weight of the converter exceeds 200t but the slag detection alarm is not triggered, manual intervention is required to close the slide plate to complete the steel tapping.

[0066] It should also be noted that after the converter is tapped, the converter needs to be quickly straightened and the molten steel car moved to the sampling position.

[0067] In this embodiment, the entire converter tapping process is automated. Automatic tapping standardizes the process, reduces converter slag and slag curl, and reduces the amount of highly oxidizing slag in the ladle, thereby reducing deoxidation consumption. This reduction, calculated at 0.05 kg / t, results in a cost reduction of approximately RMB 1 / t. Furthermore, automated tapping optimizes personnel assignments and reduces labor costs.

[0068] In some embodiments of the present application, the rotation angle range of the converter includes a first angle interval, a second angle interval and a third angle interval, the first angle interval is smaller than the second angle interval, and the second angle interval is smaller than the third angle interval. The control method for steel tapping from the converter of the present application also includes the following three embodiments.

[0069] It should be noted that the rotation angle of the converter is the rotation angle range from zero degrees to the end of tapping. For example, if the converter tapping process is performed according to the setting mode of Table 1, the rotation angle range of the converter is 0° to 103°. The first angle interval, the second angle interval, and the third angle interval can be designed according to actual conditions. Preferably, the first angle interval is an angle interval less than 95°, the second angle interval is an angle interval from 95° to 97°, and the third angle interval is an angle interval greater than 97°.

[0070] In a first embodiment, if the converter triggers a slag overflow alarm within the first angle range, the converter is controlled to rotate to a first preset angle.

[0071] It should be noted that a camera is installed at the converter mouth to collect image data of the converter mouth. If the collected image shows slag overflow, a slag overflow alarm is activated.

[0072] In some embodiments, the first preset angle is greater than 1° and less than 2°. It is understood that triggering the slag overflow alarm within the first angle range can effectively prevent the slag overflow from worsening by lifting the furnace, thereby improving the quality of molten steel and reducing slag overflow.

[0073] In some embodiments, after controlling the converter to rotate to a first preset angle, the method further includes: if the slag overflow alarm is released within a preset time period, controlling the converter to rotate to a third angle at a third speed, the third angle being the next angle of the angle at which the converter triggers the slag overflow alarm, and the third speed being less than the target speed.

[0074] Exemplarily, the third speed is set to 3° / s, the target speed is set to 5° / s, the preset time is set to 8s, and the first preset angle is set to 1.5°. Assuming that the converter triggers a slag overflow alarm signal at 88°, the converter can be controlled to rotate 1.5° to 86.5°. If the converter does not receive a slag overflow alarm signal for 8 seconds at the position of 86.5°, it can be rotated to 89° at a speed of 3° / s. After reaching 89°, if the actual steel tapping weight at the 89° position reaches the preset steel tapping weight, it will be rotated to 90° at a speed of 5° / s.

[0075] In this embodiment, after the furnace is lifted, the converter is controlled to chase to the next angle at a third speed lower than the target speed, which can effectively avoid repeated slag overflow from the converter at a slow speed.

[0076] In a second embodiment, if the converter triggers a slag overflow alarm within the second angle range, the converter is controlled to stop rotating and wait.

[0077] In some embodiments, after controlling the converter to stop rotating and waiting, if the slag overflow alarm is lifted within a preset time period, the converter is controlled to rotate to a third angle at a third speed, where the third angle is the next angle of the angle at which the converter triggers the slag overflow alarm, and the third speed is less than the target speed.

[0078] For example, the third speed is set to 3° / s, the target speed is set to 5° / s, and the preset duration is set to 8 seconds. Assuming that a slag overflow alarm signal is triggered at 96°, the converter can be controlled to stop rotating. If the converter remains at 96° for 8 seconds without receiving a slag overflow alarm signal, it can be rotated to 97° at a speed of 3° / s. After reaching 97°, if the actual tapping weight at 97° reaches the preset tapping weight, it can be rotated to 98° at a speed of 5° / s.

[0079] In a third embodiment, if the converter triggers a slag overflow alarm within the third angle range, the converter is controlled to rotate to a second preset angle, where the second preset angle is smaller than the first preset angle.

[0080] In some embodiments, the second preset angle is greater than 0.5° and less than 1°.

[0081] In some embodiments, after controlling the converter to rotate to a second preset angle, the method further includes: if the slag overflow alarm is released within a preset time period, controlling the converter to rotate to a third angle at a third speed, the third angle being the next angle of the angle at which the converter triggers the slag overflow alarm, and the third speed being less than the target speed.

[0082] Exemplarily, the third speed is set to 3° / s, the target speed is set to 5° / s, the preset time is set to 8s, and the first preset angle is set to 0.8°. Assuming that the converter triggers a slag overflow alarm signal at 98°, the converter can be controlled to rotate 0.8° to 97.2°. If the converter does not receive a slag overflow alarm signal for 8 seconds at the 97.2° position, it can be rotated to 99° at a speed of 3° / s. After reaching 99°, if the actual steel tapping weight at the 99° position reaches the preset steel tapping weight, it will be rotated to 100° at a speed of 5° / s.

[0083] It should be noted that in this embodiment, if the slag overflow alarm is not lifted after a certain period of time, for example, the slag overflow alarm still occurs after more than 20 seconds, then manual intervention is required to eliminate the slag overflow alarm. If the slag overflow alarm still cannot be lifted after manual intervention, then it is necessary to exit the automatic control program of the converter steel tapping and switch to manual steel tapping mode, that is, to complete the converter steel tapping process by manually shaking the furnace.

[0084] In this embodiment, by setting up a slag overflow monitoring alarm, slag overflow or increase in steel coil slag can be effectively avoided, thereby improving the quality of steel tapping.

[0085] In some embodiments of the present application, the method for controlling converter steel tapping further includes the following steps 140 to 150.

[0086] Step 140: Detect the current angle of the converter.

[0087] Step 150: When it is detected that the converter rotates to a fourth angle, the converter is controlled to stop rotating and alloy is added to the converter, and the fourth angle is greater than the initial angle.

[0088] In some embodiments, the fourth angle is preferably 91°. It is understood that when the alloy is added, the converter remains stationary to prevent the smoke and dust from the alloy from affecting the slag overflow detection at the furnace mouth, resulting in no alarm or false alarm.

[0089] In the technical solutions provided by some embodiments of the present application, when a start-up instruction for tapping a converter is received, the converter will rotate to an initial angle; when the converter reaches the initial angle, the actual tapping weight of the converter and the preset tapping weight corresponding to the initial angle will be obtained; if the actual tapping weight reaches the preset tapping weight, the converter will be controlled to rotate to the next angle according to the target speed, and the steps of obtaining the actual tapping weight of the converter will be continued until tapping is completed. It can be seen that in the technical solution of the present application, the preset tapping weights of the converter corresponding to each angle at each angle will be pre-set. When the converter rotates to each angle, the converter will continue to rotate to the next angle only when the actual tapping weight reaches the preset tapping weight. In this way, the converter can rotate smoothly during the tapping process, improve the flexibility of rotation, reduce tapping slag and tapping slag overflow, thereby improving the quality of molten steel tapped by the converter and reducing process costs.

[0090] The following describes an embodiment of the device of the present application, which can be used to implement the control method for converter tapping in the above-mentioned embodiment of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the control method for converter tapping in the above-mentioned embodiment of the present application.

[0091] Figure 3 A block diagram of a converter steel tapping control device according to an embodiment of the present application is shown.

[0092] Reference Figure 3 As shown, a converter tapping control device 300 according to an embodiment of the present application includes: a response unit 301 , an acquisition unit 302 and a control unit 303 .

[0093] Among them, the response unit 301 is used to respond to the start-up instruction of the converter to control the converter to rotate to the initial angle; the acquisition unit 302 is used to obtain the actual steel tapping weight of the converter and the preset steel tapping weight corresponding to the initial angle; the control unit 303 is used to control the converter to rotate to the next angle at the target speed if the actual steel tapping weight reaches the preset steel tapping weight, and continue to execute the steps of obtaining the actual steel tapping weight of the converter until the steel tapping is completed.

[0094] In some embodiments of the present application, based on the aforementioned scheme, the response unit 301 is also used to: control the converter to rotate to a first angle at a first speed; control the converter to rotate to a second angle, and the first speed is reduced to a second speed, and the second angle is greater than the first angle; control the converter to rotate to an initial angle, and the second speed is reduced to a target speed, and the initial angle is greater than the second angle.

[0095] In some embodiments of the present application, based on the aforementioned scheme, the converter includes a slide plate, which is used to prevent slag overflow, and the control unit 303 is also used to: detect the current angle of the converter; when it is detected that the converter rotates to a preset angle, control the slide plate to be closed; when it is detected that the converter rotates to the initial angle, control the slide plate to be opened, and the preset angle is smaller than the initial angle.

[0096] In some embodiments of the present application, based on the aforementioned solution, the control unit 303 is further configured to: until the converter triggers a slag detection alarm, control the converter to stop rotating and close the slide.

[0097] In some embodiments of the present application, based on the aforementioned scheme, the rotation angle range of the converter includes a first angle interval, a second angle interval and a third angle interval, the first angle interval is smaller than the second angle interval, and the second angle interval is smaller than the third angle interval, and the control unit 303 is also used to: if the converter triggers a slag overflow alarm within the first angle interval, then control the converter to rotate to a first preset angle; if the converter triggers a slag overflow alarm within the second angle interval, then control the converter to stop rotating and wait; if the converter triggers a slag overflow alarm within the third angle interval, then control the converter to rotate to a second preset angle, and the second preset angle is smaller than the first preset angle.

[0098] In some embodiments of the present application, based on the aforementioned scheme, the control unit 303 is also used to: if the slag overflow alarm is lifted within a preset time period, control the converter to rotate to a third angle at a third speed, and the third angle is the next angle of the angle at which the converter triggers the slag overflow alarm, and the third speed is less than the target speed.

[0099] In some embodiments of the present application, based on the aforementioned scheme, the control unit 303 is also used to: detect the current angle of the converter; when it is detected that the converter rotates to a fourth angle, control the converter to stop rotating and add alloy to the converter, and the fourth angle is greater than the initial angle.

[0100] Figure 4 A schematic diagram of the structure of a computer system suitable for implementing an electronic device according to an embodiment of the present application is shown.

[0101] It should be noted that Figure 4 The computer system 400 of the electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0102] like Figure 4 As shown, the computer system 400 includes a central processing unit (CPU) 401, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 402 or the program loaded from the storage part 408 into the random access memory (RAM) 403, such as executing the method described in the above embodiment. Various programs and data required for system operation are also stored in the RAM 403. The CPU 401, ROM 402 and RAM 403 are connected to each other via a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0103] The following components are connected to the I / O interface 405: an input section 406 including a keyboard, a mouse, and the like; an output section 407 including devices such as a cathode ray tube (CRT), a liquid crystal display (LCD), and a speaker; a storage section 408 including a hard disk and the like; and a communication section 409 including a network interface card such as a LAN (Local Area Network) card or a modem. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to the I / O interface 405 as needed. Removable media 411, such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory, is installed in the drive 410 as needed, so that computer programs read therefrom can be installed into the storage section 408 as needed.

[0104] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via the communication section 409, and / or installed from a removable medium 411. When the computer program is executed by the central processing unit (CPU) 401, the various functions defined in the system of the present application are executed.

[0105] It should be noted that the computer-readable medium shown in the embodiments of the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media can include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device. In the present application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer-readable medium may be transmitted using any suitable medium, including but not limited to wireless, wired, or any suitable combination thereof.

[0106] The flowcharts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. Among them, each box in the flowchart or block diagram can represent a module, program segment, or part of the code, and the above-mentioned module, program segment, or part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart, can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0107] The units involved in the embodiments described in this application may be implemented by software or hardware, and the units described may also be set in a processor. In some cases, the names of these units do not constitute limitations on the units themselves.

[0108] As another aspect, the present application further provides a computer program product or computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the electronic device control method described in the above embodiments.

[0109] As another aspect, the present application further provides a computer-readable medium, which may be included in the electronic device described in the above embodiments, or may exist independently without being incorporated into the electronic device. The computer-readable medium carries one or more programs, and when the one or more programs are executed by the electronic device, the electronic device implements the electronic device control method described in the above embodiments.

[0110] It should be noted that, although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiment of the application, the features and functions of two or more modules or units described above can be concretized in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into multiple modules or units to be concretized.

[0111] Through the description of the above embodiments, it is easy for those skilled in the art to understand that the example embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the embodiments of the present application.

[0112] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in this application. It should be understood that this application is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of this application is limited only by the appended claims.

Claims

1. A method for controlling steel tapping from a converter, characterized in that: The method comprises: In response to a start instruction for tapping steel from the converter, controlling the converter to rotate to an initial angle; Obtaining the actual tapping weight of the converter and the preset tapping weight corresponding to the initial angle; If the actual tapping weight reaches the preset tapping weight, controlling the converter to rotate to the next angle at the target speed, and continuing to execute the steps of obtaining the actual tapping weight of the converter until tapping is completed; The rotation angle range of the converter includes a first angle interval, a second angle interval and a third angle interval, wherein the first angle interval is an angle interval less than 95°, the second angle interval is an angle interval from 95° to 97°, and the third angle interval is an angle interval greater than 97°; The method further comprises: If the converter triggers a slag overflow alarm within the first angle range, controlling the converter to rotate to a first preset angle; If the converter triggers a slag overflow alarm within the second angle range, controlling the converter to stop rotating and wait; If the converter triggers a slag overflow alarm within the third angle range, controlling the converter to rotate to a second preset angle; After controlling the converter to rotate by a first preset angle, the method further includes: If the slag overflow alarm is released within the preset time, the converter is controlled to rotate to a third angle at a third speed, the third angle being the next angle of the converter when the slag overflow alarm is triggered, and the third speed is less than the target speed; The first preset angle is greater than 1° and less than 2°; The second preset angle is greater than 0.5° and less than 1°.

2. The method according to claim 1, characterized in that The controlling the converter to rotate to the initial angle comprises: controlling the converter to rotate to a first angle at a first speed; controlling the converter to rotate to a second angle, and reducing the first speed to a second speed, wherein the second angle is greater than the first angle; The converter is controlled to rotate to an initial angle, and the second speed is reduced to a target speed, and the initial angle is greater than the second angle.

3. The method according to claim 1, characterized in that The converter includes a slide plate, which is used to prevent slag overflow. The method further includes: detecting a current angle of the converter; When it is detected that the converter rotates to a preset angle, the slide is controlled to close; When it is detected that the converter rotates to the initial angle, the slide is controlled to be opened, and the preset angle is smaller than the initial angle.

4. The method according to claim 1, wherein The converter includes a slide plate, which is used to prevent slag overflow. The step of controlling the converter until the steel tapping is completed includes: until the converter triggers a slag detection alarm, controlling the converter to stop rotating and closing the slide plate.

5. The method according to claim 1, characterized in that The method further comprises: detecting a current angle of the converter; When it is detected that the converter rotates to a fourth angle, the converter is controlled to stop rotating and alloy is added to the converter, and the fourth angle is greater than the initial angle.

6. A converter tapping control device, characterized in that: The device comprises: a response unit, configured to control the converter to rotate to an initial angle in response to a start instruction for tapping the converter; an acquiring unit, configured to acquire an actual tapping weight of the converter and a preset tapping weight corresponding to the initial angle; a control unit, configured to control the converter to rotate to a next angle at a target speed if the actual tapping weight reaches the preset tapping weight, and continue to execute the steps of obtaining the actual tapping weight of the converter until tapping is completed; The rotation angle range of the converter includes a first angle interval, a second angle interval and a third angle interval, wherein the first angle interval is an angle interval less than 95°, the second angle interval is an angle interval from 95° to 97°, and the third angle interval is an angle interval greater than 97°; The control methods for converter tapping include: If the converter triggers a slag overflow alarm within the first angle range, controlling the converter to rotate to a first preset angle; If the converter triggers a slag overflow alarm within the second angle range, controlling the converter to stop rotating and wait; If the converter triggers a slag overflow alarm within the third angle range, controlling the converter to rotate to a second preset angle; After the converter is controlled to rotate by a first preset angle, the method for controlling the steel tapping from the converter includes: If the slag overflow alarm is released within the preset time, the converter is controlled to rotate to a third angle at a third speed, the third angle being the next angle of the converter when the slag overflow alarm is triggered, and the third speed is less than the target speed; The first preset angle is greater than 1° and less than 2°; The second preset angle is greater than 0.5° and less than 1°.

7. A computer-readable storage medium, characterized in that At least one program code is stored in the computer-readable storage medium, and the at least one program code is loaded and executed by the processor to implement the operations performed by the method according to any one of claims 1 to 5.

8. An electronic device, characterized in that: The method comprises one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement the method according to any one of claims 1 to 5.

Images