A nozzle clogging determination method, device, medium and electronic equipment
By measuring the immersion depth and spray angle of the submersible nozzle, and combining this with the temperature change of the narrow copper plate, the problem of judging the flow deviation when the nozzle is slightly blocked is solved, enabling timely identification of nozzle blockage and flow deviation, thus ensuring production safety and billet quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHOUGANG GROUP CO LTD
- Filing Date
- 2024-12-11
- Publication Date
- 2026-07-14
AI Technical Summary
Existing technology makes it difficult to promptly determine the flow deviation when there is slight unilateral blockage at the nozzle, which can lead to molten steel flow deviation in the crystallizer, affecting the quality and safety of the cast billet.
The target depth is determined by measuring the immersion depth and spray angle of the submersible nozzle. The outlet blockage is judged based on the temperature change of the narrow copper plate. The degree of blockage is judged by the temperature difference and duration. The flow deviation is judged by the temperature difference change.
It enables timely judgment of sprue blockage and accurate identification of flow deviation, ensuring production safety and billet quality, and avoiding accidents such as steel leakage.
Smart Images
Figure CN119634715B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of crystallizer technology, and in particular to a method, apparatus, medium, and electronic device for determining nozzle blockage. Background Technology
[0002] The tundish nozzle is a crucial component connecting the tundish and the crystallizer. When the nozzle is blocked, the molten steel will flow out of control, resulting in an excess of molten steel on the unblocked side. This excess steel will exert a greater impact on the narrow face of the crystallizer, causing the temperature to be higher than on the blocked side. This can lead to a thinner billet shell and even safety accidents such as steel leakage. Therefore, to ensure smooth production, it is necessary to assess the blockage status of the outlet.
[0003] Currently, the main method to determine the outlet blockage is by observing the rise of the stopper rod. However, when there is a slight unilateral blockage at the nozzle, that is, when one outlet is slightly blocked while the other outlet is not blocked, the flow in the crystallizer has already become biased, but the stopper rod does not rise significantly, making it difficult to make a timely judgment on the outlet blockage based on the rise of the stopper rod. Summary of the Invention
[0004] The embodiments of this application provide a method, apparatus, medium, and electronic device for determining water inlet blockage, which can promptly determine whether a water inlet is blocked.
[0005] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.
[0006] According to a first aspect of this application, a method for determining nozzle blockage is provided, applied to a slab continuous casting mold, comprising:
[0007] The target depth is determined based on the immersion depth and injection angle of the submersible nozzle. The submersible nozzle includes a vertically arranged main pipe. The main pipe has outlets on both sides for injecting molten steel onto a narrow copper plate on the same side. The outlets are inclined downwards from the inside to the outside of the main pipe. The projection of the outlets on the horizontal plane is perpendicular to the narrow copper plate on the same side. The immersion depth is the depth of the upper edge of the outlet relative to the surface of the molten steel. The injection angle is the angle of inclination of the outlet relative to the horizontal direction. The target depth is the depth of the target position relative to the upper edge of the narrow copper plate. The target position is the position where the molten steel impacts the narrow copper plate.
[0008] Based on the temperature change at the target location, determine the blockage status of the outlet corresponding to the narrow copper plate.
[0009] In some embodiments of this application, based on the foregoing scheme, determining the outlet blockage status corresponding to the narrow-face copper plate according to the temperature change at the target location includes:
[0010] Detect the target location at its initial temperature and its current temperature at the current time;
[0011] The temperature difference at the current time is determined based on the current temperature and the initial temperature;
[0012] Based on the temperature difference, the blockage status of the outlet corresponding to the narrow copper plate is determined.
[0013] In some embodiments of this application, based on the foregoing scheme, determining the blockage status of the outlet corresponding to the narrow copper plate according to the temperature difference includes:
[0014] Obtain the temperature threshold;
[0015] Based on the relationship between the temperature difference and the temperature threshold, and the corresponding duration, the blockage status of the outlet corresponding to the narrow copper plate is determined.
[0016] In some embodiments of this application, based on the foregoing scheme, the temperature threshold includes a first threshold and a second threshold, the first threshold being greater than the second threshold, and the blockage status includes a first blockage degree, a second blockage degree, a third blockage degree, and a fourth blockage degree, with the severity decreasing sequentially. Determining the blockage status of the outlet corresponding to the narrow-face copper plate based on the relationship between the temperature difference and the temperature threshold, and the corresponding duration, includes:
[0017] Obtain the first time threshold and the second time threshold;
[0018] If the duration for which the temperature difference is greater than or equal to the first threshold is greater than the first time threshold, then the blockage condition is the first blockage degree.
[0019] If the duration of the temperature difference being greater than or equal to the first threshold is greater than 0 and less than or equal to the first time threshold, or if the duration of the temperature difference being greater than or equal to the second threshold and less than the first threshold is greater than the second time threshold, then the blockage condition is the second blockage degree.
[0020] If the temperature difference is greater than or equal to the second threshold, the duration of the difference being less than the first threshold is greater than 0, and the duration of the difference being less than or equal to the second time threshold, then the blockage condition is the third level of blockage.
[0021] If the duration of the temperature difference being greater than 0 and less than the second threshold is greater than 0, then the blockage condition is the fourth level of blockage.
[0022] In some embodiments of this application, based on the foregoing scheme, the following further includes:
[0023] Determine the temperature difference between the target location on one side and the target location on the other side;
[0024] Based on the changes in the temperature difference, the flow deviation at the water inlet is determined.
[0025] In some embodiments of this application, based on the foregoing scheme, determining the target depth according to the immersion depth of the sluice gate includes:
[0026] The target depth is determined based on the preset target relationship, the immersion depth, and the injection angle. The target relationship is the correspondence between the immersion depth of the water inlet, the injection angle of the outlet, and the depth of the position on the narrow copper plate.
[0027] In some embodiments of this application, based on the aforementioned scheme, the target relationship is as follows: when the outlet jet angle remains constant, the deeper the water inlet immersion depth, the deeper the target depth; when the water inlet immersion depth remains constant, the larger the outlet jet angle, the deeper the target depth.
[0028] According to a second aspect of this application, an outlet blockage determination device is provided, comprising:
[0029] The first determining unit determines the target depth based on the immersion depth and injection angle of the submersible nozzle. The submersible nozzle includes a vertically arranged main pipe, and the two side walls of the main pipe are respectively provided with outlets for injecting molten steel onto a narrow copper plate on the same side. The outlets are inclined downward from the inside to the outside of the main pipe, and the projection of the outlets on the horizontal plane is perpendicular to the narrow copper plate on the same side. The immersion depth is the depth of the upper edge of the outlet relative to the surface of the molten steel. The injection angle is the inclination angle of the outlet relative to the horizontal direction. The target depth is the depth of the target position relative to the upper edge of the narrow copper plate. The target position is the position where the molten steel impacts the narrow copper plate.
[0030] The second determining unit determines the blockage status of the outlet corresponding to the narrow copper plate based on the temperature change at the target location.
[0031] According to a third aspect of this application, a computer-readable storage medium is provided having a computer program stored thereon, the computer program including executable instructions that, when executed by a processor, implement the method described in any embodiment of the first aspect of this application.
[0032] According to a fourth aspect of this application, an electronic device is provided, comprising: one or more processors; and a memory for storing executable instructions of the processors, which, when executed by the one or more processors, cause the one or more processors to implement the method described in any embodiment of the first aspect of this application.
[0033] The beneficial effects of this application are as follows:
[0034] When the water inlet is blocked, the temperature at the target location on the corresponding narrow copper plate will change significantly. Therefore, based on the temperature change at the target location, the blockage status of the outlet corresponding to the narrow copper plate can be determined in a timely manner.
[0035] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:
[0037] Figure 1 A schematic diagram of a slab continuous casting crystallizer according to an embodiment of this application is shown;
[0038] Figure 2 A flowchart of a method for determining water inlet blockage in an embodiment of this application is shown;
[0039] Figure 3 A block diagram of an outlet blockage determination device according to an embodiment of this application is shown;
[0040] Figure 4 A schematic diagram of a computer-readable storage medium in an embodiment of this application is shown;
[0041] Figure 5 A schematic diagram of the system structure of an electronic device in an embodiment of this application is shown. Detailed Implementation
[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0043] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.
[0044] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.
[0045] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.
[0046] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.
[0047] To better understand the embodiments of this application, the structure of the slab continuous casting crystallizer is described below:
[0048] The slab continuous casting crystallizer includes two wide copper plates and two narrow copper plates. The two wide copper plates are arranged opposite each other, and the two narrow copper plates are arranged opposite each other. The two wide copper plates and the two narrow copper plates enclose a square area for containing molten steel. The submerged entry nozzle is submerged below the surface of the molten steel. The side wall of the submerged entry nozzle is provided with outlets for spraying molten steel onto the narrow copper plates on the same side. The outlets are inclined downward from the inside of the submerged entry nozzle to the outside. The projection of the outlets on the horizontal plane is perpendicular to the narrow copper plates on the same side. Molten steel is sprayed onto the narrow copper plates from the outlets.
[0049] Figure 1 A schematic diagram of a slab continuous casting crystallizer according to an embodiment of this application is shown. Figure 2 A flowchart of a method for determining water inlet blockage according to an embodiment of this application is shown. Figure 1In the diagram, 1 is the main pipe, 2 is the outlet, and 3 is the narrow copper plate. (See also...) Figure 1 and Figure 2 A method for determining nozzle blockage is provided, applicable to slab continuous casting molds, comprising at least S1 to S2, detailed below:
[0050] In step S1, the target depth is determined based on the immersion depth and injection angle of the submersible nozzle. The submersible nozzle includes a vertically arranged main pipe. Each side wall of the main pipe has an outlet for injecting molten steel onto a narrow copper plate on the same side. The outlets are inclined downwards from the inside to the outside of the main pipe, and their projection on the horizontal plane is perpendicular to the narrow copper plate on the same side. The immersion depth is the depth of the upper edge of the outlet relative to the surface of the molten steel. The injection angle is the angle of inclination of the outlet relative to the horizontal direction. The target depth is the depth of the target position relative to the upper edge of the narrow copper plate, and the target position is the location where the molten steel impacts the narrow copper plate. When the outlet is blocked, the flow rate of the molten steel injected onto the narrow copper plate increases, and the temperature of the narrow copper plate rises. At this time, the temperature rise at the location where the molten steel impacts the narrow copper plate is greater than at other locations, meaning it is more sensitive to change. Therefore, the location where the molten steel impacts the narrow copper plate is taken as the target position. The horizontal direction is perpendicular to the main pipe. Figure 1 The left and right directions.
[0051] In step S2, the blockage status of the outlet corresponding to the narrow-faced copper plate is determined based on the temperature change at the target location. When the outlet is blocked, the molten steel flow rate increases, the amount of molten steel sprayed onto the corresponding narrow-faced copper plate per unit time increases, the temperature of the narrow-faced copper plate rises, and the temperature at the target location rises accordingly. The target location corresponds to the outlet, and the temperature change at the target location is used to determine the corresponding outlet blockage status. For example, if two narrow-faced copper plates are located on the left and right sides respectively, and the outlets of the sprue are located on the left and right sides respectively, with the left outlet spraying molten steel onto the left narrow-faced copper plate and the right outlet spraying molten steel onto the right narrow-faced copper plate, the temperature change at the target location on the left side is used to determine the blockage status of the left outlet, and the temperature change at the target location on the right side is used to determine the blockage status of the right outlet.
[0052] In some embodiments, determining the outlet blockage status corresponding to the narrow-face copper plate based on the temperature change at the target location includes: detecting the initial temperature and the current temperature at the target location at the current time; determining the temperature difference at the current time based on the current temperature and the initial temperature; and determining the blockage status of the outlet corresponding to the narrow-face copper plate based on the temperature difference. The initial temperature can be a preset temperature for the target location or the temperature at the target location when production meets requirements. A thermocouple at the target location can be used to detect the initial temperature and the current temperature, wherein the thermocouple is installed at the target location through a mounting hole.
[0053] In some implementations, the initial temperature is the temperature at the first target time after the continuous casting machine starts casting, such as the temperature 10 minutes after the continuous casting machine starts casting.
[0054] In some implementations, determining the blockage status of the outlet corresponding to the narrow copper plate based on the temperature difference includes: obtaining a temperature threshold; and determining the blockage status of the outlet corresponding to the narrow copper plate based on the relationship between the temperature difference and the temperature threshold and the corresponding duration.
[0055] In some embodiments, the temperature threshold includes a first threshold and a second threshold, wherein the first threshold is greater than the second threshold, and the blockage status includes a first blockage degree, a second blockage degree, a third blockage degree, and a fourth blockage degree, with the severity decreasing sequentially. Determining the blockage status of the outlet corresponding to the narrow-face copper plate based on the relationship between the temperature difference and the temperature threshold, and the corresponding duration, includes: obtaining a first time threshold and a second time threshold; if the duration of the temperature difference being greater than or equal to the first threshold is greater than the first time threshold, then the blockage status is the first blockage degree; if the duration of the temperature difference being greater than or equal to the first threshold is greater than 0 and less than or equal to the first time threshold, or if the duration of the temperature difference being greater than or equal to the second threshold and less than the first threshold is greater than the second time threshold, then the blockage status is the second blockage degree; if the duration of the temperature difference being greater than or equal to the second threshold and less than the first threshold is greater than 0 and less than or equal to the second time threshold, then the blockage status is the third blockage degree; if the duration of the temperature difference being greater than 0 and less than the second threshold is greater than 0, then the blockage status is the fourth blockage degree. The first level of blockage severity indicates a severe blockage at the outlet, requiring immediate attention; the second level indicates a relatively severe blockage at the outlet, requiring close monitoring; the third level indicates a less severe blockage at the outlet, requiring periodic monitoring; and the fourth level indicates a relatively minor blockage at the outlet, requiring occasional monitoring.
[0056] In some implementations, the method further includes: determining whether the blockage conditions of one outlet and the other outlet are different; if so, there is no flow deviation; otherwise, there is flow deviation. If the severity of the blockage condition at one outlet is higher than that at the other outlet, then there is flow deviation at the other outlet; conversely, if the severity of the blockage condition at the other outlet is higher than that at one outlet, then there is flow deviation at one outlet. The greater the difference in severity between the blockage conditions at the other outlet and the first outlet, the more severe the flow deviation. For example, if the other outlet is not blocked, and the severity of the blockage condition at one outlet is at the first blockage level, then the flow deviation at the other outlet is the most severe. Obviously, when the outlet is not blocked, the severity is lower than the fourth blockage severity level.
[0057] In some implementations, the first threshold is 50°C, the second threshold is 30°C, the first time threshold is 60s, and the second time threshold is 30s.
[0058] In some implementations, determining the blockage status of the outlet corresponding to the narrow copper plate based on the temperature difference includes: if the temperature difference is 0, then the blockage status is non-blockage.
[0059] In some embodiments, determining the target depth based on the immersion depth of the nozzle includes: determining the target depth based on a preset target relationship, the immersion depth, and the spray angle, wherein the target relationship is the correspondence between the immersion depth of the nozzle, the spray angle at the outlet, and the depth of the position on the narrow copper plate.
[0060] In some implementations, the target relationship is as follows: when the outlet jet angle remains constant, the deeper the nozzle immersion depth, the deeper the target depth; when the nozzle immersion depth remains constant, the larger the outlet jet angle, the deeper the target depth.
[0061] In some implementations, if one outlet is not blocked, and the other outlet is blocked to a first degree of severity, then the flow deviation of the other outlet is severe; if the other outlet is blocked to a second degree of severity, then the flow deviation of the other outlet is slight.
[0062] In some embodiments, the height of the narrow copper plate is 900 mm, and the molten steel level is 100 mm below the upper end of the narrow copper plate. If the immersion depth is (140-160) mm, the depth of the target position is (450-600) mm; if the immersion depth is (160-180) mm, the depth of the target position is (600-750) mm.
[0063] In some examples, ultra-low carbon steel with a cross-section of 230mm×1400mm was cast in a continuous casting machine at a casting speed of 1.4m / min. Ultra-low carbon steel protective slag was used, the superheat was controlled at 25±0.2℃, the sprue immersion depth was 180mm, and the target depth was 600-750mm. Seven heats were cast consecutively. At the end of the fifth heat, the temperature at the target position on one side suddenly rose from 101℃ to 141℃ for more than 30 seconds. The outlet blockage was classified as the second most severe. The temperature at the target position on the other side remained unchanged, meaning the outlet blockage on the other side was not blocked. The flow deviation at the target position on the other side was classified as slight flow deviation. The hot-rolled product quality of this billet was tracked, and slight slag entrapment occurred on the surface of the coil. When casting to the 7th heat, the immersion depth of the nozzle was adjusted to 140mm, with a target depth of 450-600mm. The temperature at the target location was detected to suddenly rise from 115℃ to 166℃ and last for more than 60 seconds. This indicates that the outlet blockage is of the second most severe degree. The temperature at the target location on the other side remained unchanged, meaning that the outlet blockage on the other side was not blocked. This indicates that the flow deviation at the target location on the other side was severe. Upon observation of the next nozzle, it was observed that the immersion nozzle was blocked. The hot-rolled product quality of this billet was monitored, and severe slag curling occurred on the surface of the coil.
[0064] In some implementations, the method further includes: determining the temperature difference between the target location on one side and the target location on the other side; and determining the flow deviation of the water outlet based on the changes in the temperature difference.
[0065] In some implementations, determining the flow deviation of the sprue based on the change in the temperature difference includes: determining the flow deviation based on a target difference between the current temperature difference and the initial temperature difference, and the duration corresponding to the target temperature difference. The initial temperature difference is the temperature difference at a second target time after the continuous casting machine starts casting, and the current temperature difference is the temperature difference at the current time, which is after the second target time. The initial temperature difference can be understood as the temperature difference when the two outlets are not blocked, typically close to 0. The second target time can be 10 minutes.
[0066] In some implementations, determining the flow deviation of the water inlet based on a target difference between the current temperature difference and the initial temperature difference, and the duration corresponding to the target temperature difference, includes: acquiring a first difference threshold, a second difference threshold, a first duration threshold, and a second duration threshold, wherein the first difference threshold is greater than the second duration threshold; if the duration for which the target temperature difference is greater than or equal to the first difference threshold is greater than the first duration threshold, then the flow deviation of the water inlet is considered severe; if the duration for which the absolute value of the target temperature difference is greater than or equal to the second difference threshold and less than the first difference threshold is greater than the second duration threshold, then the flow deviation of the water inlet is considered slight. The first difference threshold can be 50°C, the second difference threshold can be 30°C, the first duration threshold can be 60 seconds, and the second duration threshold can be 30 seconds.
[0067] In some implementations, after determining the flow deviation of the water inlet based on the target difference between the current temperature difference and the initial temperature difference and the duration corresponding to the target difference, the method further includes: determining the location of the flow deviation based on the sign of the target difference.
[0068] In some implementations, determining the location of the flow deviation based on the sign of the target difference includes: if the target difference is negative, then there is a flow deviation on one side of the outlet relative to the outlet on the other side; if the target difference is positive, then there is a flow deviation on the other side of the outlet relative to the outlet on one side, wherein the flow deviation is a severe flow deviation or a slight flow deviation.
[0069] Figure 3 A block diagram of an outlet blockage determination device according to an embodiment of this application is shown. See also: Figure 3 According to a second aspect of this application, an outlet blockage determination device 100 is provided, comprising:
[0070] The first determining unit 101 determines the target depth based on the immersion depth of the nozzle, wherein the target depth is the depth of the target position on the narrow copper plate, the immersion depth of the nozzle is the depth of the nozzle relative to the surface of the molten steel, the nozzle is an immersion nozzle, the nozzle has two outlets, the number of narrow copper plates is two, the two narrow copper plates are arranged opposite each other, the narrow copper plates and the outlets are arranged correspondingly, the outlets spray molten steel onto the corresponding narrow copper plates, and the depth of the target position is the depth of the target position relative to the upper end of the narrow copper plate;
[0071] The second determining unit 102 determines the blockage status of the outlet corresponding to the narrow copper plate based on the temperature change at the target location.
[0072] In this application, when the water outlet is blocked, the temperature at the target position on the corresponding narrow copper plate will change significantly. Therefore, based on the temperature change at the target position, the blockage status of the outlet corresponding to the narrow copper plate can be determined in a timely manner.
[0073] Based on the same inventive concept, as a third aspect, this application also provides a computer-readable storage medium storing a program product capable of implementing the above-described method for determining sprue blockage. In some possible embodiments, various aspects of this application can also be implemented as a program product including program code, which, when run on a terminal device, causes the terminal device to perform the steps described in the "Exemplary Methods" section of this specification according to various exemplary embodiments of this application.
[0074] refer to Figure 4 As shown, a program product 200 for implementing the above-described method according to an embodiment of this application is described. It may employ a portable compact disc read-only memory (CD-ROM) and include program code, and can run on a terminal device, such as a personal computer. However, the program product of this application is not limited thereto. In this document, a readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.
[0075] The program product may employ any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.
[0076] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying 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 readable signal medium may also be any readable medium other than a readable storage medium, capable of sending, propagating, or transmitting programs for use by or in conjunction with an instruction execution system, apparatus, or device.
[0077] The program code contained on the readable medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof.
[0078] Program code for performing the operations of this application can be written in any combination of one or more programming languages, including object-oriented programming languages such as Java and C++, and conventional procedural programming languages such as C or similar languages. The program code can execute entirely on the user's computing device, partially on the user's device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (e.g., via the Internet using an Internet service provider).
[0079] In another respect, this application also provides an electronic device capable of implementing the above-described method.
[0080] Those skilled in the art will understand that various aspects of this application can be implemented as a system, method, or program product. Therefore, various aspects of this application can be specifically implemented in the following forms: a completely hardware implementation, a completely software implementation (including firmware, microcode, etc.), or a combination of hardware and software implementations, collectively referred to herein as a "circuit," "module," or "system."
[0081] The following reference Figure 5 To describe an electronic device 300 according to this embodiment of the present application. Figure 5 The electronic device 300 shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.
[0082] like Figure 5 As shown, the electronic device 300 is manifested in the form of a general-purpose computing device. The components of the electronic device 300 may include, but are not limited to: at least one processing unit 310, at least one storage unit 320, and a bus 330 connecting different system components (including storage unit 320 and processing unit 310).
[0083] The storage unit stores program code that can be executed by the processing unit 310, causing the processing unit 310 to perform the steps described in the "Embodiment Methods" section above according to various exemplary embodiments of this application.
[0084] Storage unit 320 may include readable media in the form of volatile storage units, such as random access memory (RAM) 321 and / or cache memory 322, and may further include read-only memory (ROM) 323.
[0085] Storage unit 320 may also include a program / utility 324 having a set (at least one) of program modules 325, including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.
[0086] Bus 330 can represent one or more of several types of bus structures, including a memory cell bus or memory cell controller, a peripheral bus, a graphics acceleration port, a processing unit, or a local bus using any of the various bus structures.
[0087] Electronic device 300 can also communicate with one or more external devices 400 (e.g., keyboard, pointing device, Bluetooth device, etc.), and with one or more devices that enable a user to interact with the electronic device 300, and / or with any device that enables the electronic device 300 to communicate with one or more other computing devices (e.g., router, modem, etc.). This communication can be performed via input / output (I / O) interface 350. Furthermore, electronic device 300 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 360. Figure 5 As shown, network adapter 360 communicates with other modules of electronic device 300 via bus 330. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with electronic device 300, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.
[0088] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and embodiments are within the scope and spirit of this application and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Furthermore, the functional units may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit.
[0089] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.
[0090] The units described as separate components may or may not be physically separate. Similarly, the components of the control device may or may not be physical units; they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.
[0091] 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 described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.
[0092] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. A method for determining nozzle blockage, applied to a slab continuous casting crystallizer, characterized in that, include: The target depth is determined based on the immersion depth and injection angle of the submersible nozzle. The submersible nozzle includes a vertically arranged main pipe. The main pipe has outlets on both sides for injecting molten steel onto a narrow copper plate on the same side. The outlets are inclined downwards from the inside to the outside of the main pipe. The projection of the outlets on the horizontal plane is perpendicular to the narrow copper plate on the same side. The immersion depth is the depth of the upper edge of the outlet relative to the surface of the molten steel. The injection angle is the angle of inclination of the outlet relative to the horizontal direction. The target depth is the depth of the target position relative to the upper edge of the narrow copper plate. The target position is the position where the molten steel impacts the narrow copper plate. Based on the temperature change at the target location, determine the blockage status of the outlet corresponding to the narrow copper plate; The two narrow copper plates are located on the left and right sides respectively, and the outlets of the sprue are located on the left and right sides respectively. The outlet on the left sprays molten steel onto the narrow copper plate on the left, and the outlet on the right sprays molten steel onto the narrow copper plate on the right. The temperature change at the target position on the left is used to determine the blockage of the outlet on the left, and the temperature change at the target position on the right is used to determine the blockage of the outlet on the right.
2. The method for determining water inlet blockage according to claim 1, characterized in that, The step of determining the blockage status of the outlet corresponding to the narrow copper plate based on the temperature change at the target location includes: Detect the target location at its initial temperature and its current temperature at the current time; The temperature difference at the current time is determined based on the current temperature and the initial temperature; Based on the temperature difference, the blockage status of the outlet corresponding to the narrow copper plate is determined.
3. The method for determining water inlet blockage according to claim 2, characterized in that, The step of determining the blockage status of the outlet corresponding to the narrow copper plate based on the temperature difference includes: Obtain the temperature threshold; Based on the relationship between the temperature difference and the temperature threshold, and the corresponding duration, the blockage status of the outlet corresponding to the narrow copper plate is determined.
4. The method for determining water inlet blockage according to claim 3, characterized in that, The temperature threshold includes a first threshold and a second threshold, where the first threshold is greater than the second threshold. The blockage status includes a first blockage level, a second blockage level, a third blockage level, and a fourth blockage level, with severity decreasing sequentially. Determining the blockage status of the outlet corresponding to the narrow copper plate based on the relationship between the temperature difference and the temperature threshold, and the corresponding duration, includes: Obtain the first time threshold and the second time threshold; If the duration for which the temperature difference is greater than or equal to the first threshold is greater than the first time threshold, then the blockage condition is the first blockage degree. If the duration of the temperature difference being greater than or equal to the first threshold is greater than 0 and less than or equal to the first time threshold, or if the duration of the temperature difference being greater than or equal to the second threshold and less than the first threshold is greater than the second time threshold, then the blockage condition is the second blockage degree. If the temperature difference is greater than or equal to the second threshold, the duration of the difference being less than the first threshold is greater than 0, and the duration of the difference being less than or equal to the second time threshold, then the blockage condition is the third level of blockage. If the duration of the temperature difference being greater than 0 and less than the second threshold is greater than 0, then the blockage condition is the fourth level of blockage.
5. The method for determining water inlet blockage according to claim 1, characterized in that, Also includes: Determine the temperature difference between the target location on one side and the target location on the other side; Based on the changes in the temperature difference, the flow deviation at the water inlet is determined.
6. The method for determining water inlet blockage according to claim 1, characterized in that, The determination of the target depth based on the immersion depth and injection angle of the submersible nozzle includes: The target depth is determined based on the preset target relationship, the immersion depth, and the injection angle. The target relationship is the correspondence between the immersion depth of the water inlet, the injection angle of the outlet, and the depth of the position on the narrow copper plate.
7. The method for determining water inlet blockage according to claim 6, characterized in that, The target relationship is as follows: when the outlet injection angle remains constant, the deeper the immersion depth of the nozzle, the deeper the target depth; when the immersion depth of the nozzle remains constant, the larger the outlet injection angle, the deeper the target depth.
8. A device for determining outlet blockage, characterized in that, include: The first determining unit determines the target depth based on the immersion depth and injection angle of the submersible nozzle. The submersible nozzle includes a vertically arranged main pipe, and the two side walls of the main pipe are respectively provided with outlets for injecting molten steel onto a narrow copper plate on the same side. The outlets are inclined downward from the inside to the outside of the main pipe, and the projection of the outlets on the horizontal plane is perpendicular to the narrow copper plate on the same side. The immersion depth is the depth of the upper edge of the outlet relative to the surface of the molten steel. The injection angle is the inclination angle of the outlet relative to the horizontal direction. The target depth is the depth of the target position relative to the upper edge of the narrow copper plate. The target position is the position where the molten steel impacts the narrow copper plate. The second determining unit determines the blockage status of the outlet corresponding to the narrow copper plate based on the temperature change at the target location. The two narrow copper plates are located on the left and right sides respectively, and the outlets of the sprue are located on the left and right sides respectively. The outlet on the left sprays molten steel onto the narrow copper plate on the left, and the outlet on the right sprays molten steel onto the narrow copper plate on the right. The temperature change at the target position on the left is used to determine the blockage of the outlet on the left, and the temperature change at the target position on the right is used to determine the blockage of the outlet on the right.
9. A computer-readable storage medium having a computer program stored thereon, characterized in that, The computer program includes executable instructions that, when executed by a processor, implement the method described in any one of claims 1-7.
10. An electronic device, characterized in that, include: One or more processors; A memory for storing executable instructions of the processor, which, when executed by the one or more processors, cause the one or more processors to perform the method according to any one of claims 1-7.