Water gap blockage determination method and device, medium and electronic equipment

Abstract

The invention discloses a nozzle blockage determination method and device, a medium and electronic equipment, and the determination method comprises the steps that the target depth is determined according to the immersion depth and the spraying angle of a submersed nozzle, the submersed nozzle comprises a main pipeline which is vertically arranged, and the main pipeline is communicated with the submersed nozzle; outlets for spraying molten steel to the narrow-face copper plates on the same side are formed in the two side walls of the main pipeline respectively, the outlets are obliquely and downwards formed from the inner side of the main pipeline to the outer side of the main pipeline, the projections of the outlets on the horizontal plane are perpendicular to the narrow-face copper plates on the same side, and the immersion depth is the depth of the upper edges of the outlets relative to the liquid level of the molten steel; the spraying angle is the inclination angle of the outlet relative to the horizontal direction, the target depth is the depth of a target position relative to the upper edge of the narrow-face copper plate, and the target position is the position where molten steel impacts the narrow-face copper plate; and according to the temperature change condition of the target position, the blockage condition of the outlet corresponding to the narrow-face copper plate is determined. The method can determine the water gap blocking condition in time.

Description

Background Art

[0002] The nozzle is a key component connecting the tundish and the crystallizer. When the nozzle is blocked, the molten steel will flow in a biased manner, resulting in excessive molten steel on the unblocked side of the nozzle, which will have a greater impact on the narrow surface of the crystallizer. The temperature is higher than the blocked side of the nozzle, making the shell of the ingot thinner and even causing safety accidents such as steel leakage. Therefore, in order to ensure the smooth progress of production, it is necessary to judge the outlet blockage situation.

[0003] At present, the outlet blockage is mainly judged by observing the rise of the stopper rod. However, when there is a slight unilateral blockage at the water inlet, that is, one of the outlets is slightly blocked and the other outlet is not blocked, bias flow has occurred in the crystallizer, but the stopper rod has not risen significantly. It is 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 the present application provide a method, device, medium, and electronic device for determining whether a water outlet is blocked, which can promptly determine whether a water outlet is blocked.

[0005] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0006] According to a first aspect of the present application, a method for determining nozzle blockage is provided, which is applied to a slab continuous casting crystallizer, comprising:

[0007] The target depth is determined according to the immersion depth and the spraying angle of the immersion nozzle, wherein the immersion nozzle comprises a vertically arranged main pipe, and both side walls of the main pipe are respectively provided with outlets for spraying molten steel toward the narrow copper plate on the same side, and the outlets are arranged obliquely downward from the inside of the main pipe to the outside, and the projection of the outlet 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 liquid surface of the molten steel, the spraying 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, and the target position is the position where the molten steel hits the narrow copper plate;

[0008] According to the temperature change of the target position, the blockage condition of the outlet corresponding to the narrow copper plate is determined.

[0009] In some embodiments of the present application, based on the above-mentioned solution, determining the outlet blockage condition corresponding to the narrow copper plate according to the temperature change condition of the target position includes:

[0010] Detecting the target location at an initial temperature and a current temperature at a current time;

[0011] Determining a temperature difference at the current time according to the current temperature and the initial temperature;

[0012] According to the temperature difference, the blockage condition of the outlet corresponding to the narrow copper plate is determined.

[0013] In some embodiments of the present application, based on the above solution, determining the blockage condition of the outlet corresponding to the narrow copper plate according to the temperature difference includes:

[0014] Get the temperature threshold;

[0015] The blockage condition of the outlet corresponding to the narrow copper plate is determined according to the magnitude relationship between the temperature difference and the temperature threshold and the corresponding duration.

[0016] In some embodiments of the present application, based on the aforementioned solution, the temperature threshold includes a first threshold and a second threshold, the first threshold is greater than the second threshold, the blocking condition includes a first blocking degree, a second blocking degree, a third blocking degree, and a fourth blocking degree with decreasing severity, and the blocking condition of the outlet corresponding to the narrow copper plate is determined according to the relationship between the temperature difference and the temperature threshold and the corresponding duration, including:

[0017] Obtain a first time threshold and a second time threshold;

[0018] If the duration during which the temperature difference is greater than or equal to the first threshold is greater than the first time threshold, 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 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, the congestion condition is the second congestion degree;

[0020] If the temperature difference is greater than or equal to the second threshold, and the duration of being less than the first threshold is greater than 0 and less than or equal to the second time threshold, then the congestion condition is the third congestion degree;

[0021] If the temperature difference is greater than 0 and the duration of being less than the second threshold is greater than 0, the blockage condition is a fourth blockage degree.

[0022] In some embodiments of the present application, based on the aforementioned scheme, it also includes:

[0023] determining a temperature difference between the target location on one side and the target location on the other side;

[0024] The flow deviation of the water outlet is determined according to the change of the temperature difference.

[0025] In some embodiments of the present application, based on the above solution, determining the target depth according to the immersion depth of the nozzle includes:

[0026] The target depth is determined according to a preset target relationship, the immersion depth and the injection angle, wherein the target relationship is a corresponding relationship between the immersion depth of the water nozzle, the outlet injection angle and the depth of the position on the narrow copper plate.

[0027] In some embodiments of the present application, based on the aforementioned scheme, the target relationship is: when the outlet spray angle remains unchanged, the deeper the water outlet immersion depth, the deeper the target depth; when the water outlet immersion depth remains unchanged, the larger the outlet spray angle, the deeper the target depth.

[0028] According to a second aspect of the present application, there is provided a device for determining an outlet blockage condition, comprising:

[0029] A first determination unit determines a target depth according to an immersion depth and a spraying angle of the immersion nozzle, wherein the immersion nozzle comprises a vertically arranged main pipe, and both side walls of the main pipe are respectively provided with outlets for spraying molten steel toward the narrow copper plate on the same side, and the outlets are arranged obliquely downward from the inside of the main pipe to the outside, and the projection of the outlet 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 liquid surface of the molten steel, the spraying 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, and the target position is the position where the molten steel hits the narrow copper plate;

[0030] The second determining unit determines the blockage condition of the outlet corresponding to the narrow copper plate according to the temperature change condition of the target position.

[0031] According to the third aspect of the present application, a computer-readable storage medium is provided, on which a computer program is stored. The computer program includes executable instructions. When the executable instructions are executed by a processor, the method described in any embodiment of the first aspect of the present application is implemented.

[0032] According to the fourth aspect of the present application, an electronic device is provided, comprising: one or more processors; and a memory for storing executable instructions of the processors, wherein when the executable instructions are executed by the one or more processors, the one or more processors implement the method described in any embodiment of the first aspect of the present application.

[0033] The beneficial effects of this application are as follows:

[0034] When the water outlet is blocked, the temperature of the target position on the corresponding narrow copper plate will change significantly. Therefore, according to the temperature change of the target position, the blockage of the outlet corresponding to the narrow copper plate can be determined in time.

[0035] 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

[0036] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0037] Figure 1 A schematic diagram of a slab continuous casting crystallizer in an embodiment of the present application is shown;

[0038] Figure 2 A flow chart of a method for determining water inlet blockage in an embodiment of the present application is shown;

[0039] Figure 3 A block diagram of a device for determining an outlet blockage condition in an embodiment of the present application is shown;

[0040] Figure 4 A schematic diagram showing a computer-readable storage medium in an embodiment of the present application is shown;

[0041] Figure 5 A schematic diagram showing the system structure of an electronic device in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] 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 to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate 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, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the 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 may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0045] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[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 understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0047] In order to better understand the embodiments of the present application, the structure of the slab continuous casting crystallizer is described as follows:

[0048] The slab continuous casting crystallizer includes two wide copper plates and two narrow copper plates, which are arranged opposite to each other, and the two narrow copper plates are arranged opposite to each other. The two wide copper plates and the two narrow copper plates enclose a square area for accommodating molten steel, and an immersion nozzle is immersed below the liquid level of the molten steel. The side walls of the immersion nozzle are respectively provided with outlets for spraying molten steel toward the narrow copper plates on the same side, and the outlets are arranged downwardly and inclined from the inside of the immersion nozzle to the outside, and the projection of the outlet on the horizontal plane is perpendicular to the narrow copper plates on the same side, and the molten steel is sprayed from the outlet onto the narrow copper plates.

[0049] Figure 1 A schematic diagram of a slab continuous casting crystallizer in an embodiment of the present application is shown, Figure 2 A flow chart of a method for determining water inlet blockage in an embodiment of the present application is shown. Figure 1 In the figure, 1 is the main pipeline, 2 is the outlet, and 3 is the narrow copper plate. Figure 1 and Figure 2 , provides a method for determining nozzle blockage, which is applied to a slab continuous casting crystallizer, including at least S1 to S2, and is described in detail as follows:

[0050] In step S1, the target depth is determined according to the immersion depth and the spraying angle of the immersion nozzle, wherein the immersion nozzle includes a vertically arranged main pipe, and the two side walls of the main pipe are respectively provided with outlets for spraying molten steel toward the narrow copper plate on the same side, and the outlets are arranged obliquely downward from the inside of the main pipe to the outside, and the projection of the outlet 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 liquid surface of the molten steel, and the spraying 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, and the target position is the position where the molten steel hits the narrow copper plate. When the outlet is blocked, the flow rate of the molten steel sprayed onto the narrow copper plate increases, and the temperature of the narrow copper plate rises. At this time, the temperature increase at the position where the molten steel hits the narrow copper plate is higher than that at other positions, that is, the change is more sensitive. Therefore, the position where the molten steel hits the narrow copper plate is taken as the target position. The horizontal direction is perpendicular to the main pipe, and the horizontal direction is Figure 1 left and right direction.

[0051] In step S2, the blockage condition of the outlet corresponding to the narrow copper plate is determined according to the temperature change of the target position. When the outlet is blocked, the flow rate of molten steel increases, the amount of molten steel sprayed onto the corresponding narrow copper plate per unit time increases, the temperature of the narrow copper plate increases, and the temperature of the target position increases accordingly. The target position corresponds to the outlet, and the temperature change of the target position is used to determine the blockage condition of the corresponding outlet. For example, the two narrow copper plates are located on the left and right sides, respectively, and the outlets of the water nozzles are located on the left and right sides. The outlet on the left sprays molten steel to the narrow copper plate on the left, and the outlet on the right sprays molten steel to the narrow copper plate on the right. The temperature change of the target position on the left is used to determine the blockage condition of the outlet on the left, and the temperature change of the target position on the right is used to determine the blockage condition of the outlet on the right.

[0052] In some embodiments, determining the blockage of the outlet corresponding to the narrow copper plate according to the temperature change of the target position includes: detecting the target position at the initial temperature and the current temperature at the current time; determining the temperature difference at the current time according to the current temperature and the initial temperature; and determining the blockage of the outlet corresponding to the narrow copper plate according to the temperature difference. The initial temperature can be a preset temperature of the target position, or it can be the temperature of the target position when production meets the requirements. The initial temperature and the current temperature can be detected by a thermocouple at the target position, wherein the thermocouple is installed at the target position through a mounting hole.

[0053] In some embodiments, 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 embodiments, determining the blockage condition of the outlet corresponding to the narrow copper plate based on the temperature difference includes: obtaining a temperature threshold; determining the blockage condition 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, the first threshold is greater than the second threshold, the blockage condition includes a first blockage degree, a second blockage degree, a third blockage degree and a fourth blockage degree with decreasing severity, and determining the blockage condition of the outlet corresponding to the narrow copper plate according to the size 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 that the temperature difference is greater than or equal to the first threshold is greater than the first time threshold, the blockage condition is the first blockage degree; if the duration that the temperature difference is greater than or equal to the first threshold is greater than 0 and less than or equal to the first time threshold, or the duration that the temperature difference is greater than or equal to the second threshold and less than the first threshold is greater than the second time threshold, the blockage condition is the second blockage degree; if the duration that the temperature difference is 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, the blockage condition is the third blockage degree; if the duration that the temperature difference is greater than 0 and less than the second threshold is greater than 0, the blockage condition is the fourth blockage degree. The first blockage severity level indicates that the outlet is seriously blocked and needs to be dealt with immediately. The second blockage severity level indicates that the outlet is relatively seriously blocked and needs to be tracked and observed at any time. The third blockage severity level indicates that the outlet is not too serious and needs to be tracked and observed regularly. The fourth blockage severity level indicates that the outlet is relatively light and needs to be tracked and observed occasionally.

[0056] In some embodiments, it further includes: determining whether the blocking conditions of one outlet are different from the blocking conditions of the other outlet, if so, there is no bias flow, if not, there is bias flow. If the severity of the blocking conditions of one outlet is higher than the severity of the blocking conditions of the other outlet, there is bias flow in the other outlet, conversely, if the severity of the blocking conditions of the other outlet is higher than the severity of the blocking conditions of one outlet, there is bias flow in one outlet, the greater the difference between the severity of the blocking conditions of the other outlet and the blocking conditions of one outlet, the more serious the bias flow condition, for example, the blocking condition of the other outlet is not blocked, the severity of the blocking conditions of one outlet is the first blocking degree, and the bias flow degree of the blocking condition of the other outlet is the most serious. Obviously, when the blocking condition of the outlet is not blocked, the severity is lower than the fourth blocking severity.

[0057] In some embodiments, the first threshold is 50° C., the second threshold is 30° C., the first time threshold is 60 s, and the second time threshold is 30 s.

[0058] In some embodiments, determining the blockage condition of the outlet corresponding to the narrow copper plate according to the temperature difference includes: if the temperature difference is 0, the blockage condition is no blockage.

[0059] In some embodiments, determining the target depth based on the immersion depth of the water nozzle includes: determining the target depth based on a preset target relationship, the immersion depth and the injection angle, wherein the target relationship is the correspondence between the immersion depth of the water nozzle, the outlet injection angle and the depth of the position on the narrow copper plate.

[0060] In some embodiments, the target relationship is: when the outlet spray angle remains unchanged, the deeper the water outlet immersion depth is, the deeper the target depth is; when the water outlet immersion depth remains unchanged, the larger the outlet spray angle is, the deeper the target depth is.

[0061] In some embodiments, if the blockage condition of one outlet is unblocked, if the blockage condition of the other outlet is a first blockage severity, then the bias degree of the other outlet is severe bias; if the blockage condition of the other outlet is a second blockage severity, then the bias degree of the other outlet is slight bias.

[0062] In some embodiments, the height of the narrow copper plate is 900 mm, and when the molten steel level is 100 mm lower than 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, and 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 is cast in a continuous casting machine with a cross-section of 230mm×1400mm, a pulling speed of 1.4m / min, ultra-low carbon steel protective slag, superheat controlled at 25±0.2°C, nozzle immersion depth of 180mm, target depth of 600-750mm, and 7 furnaces are cast continuously. At the end of casting the 5th furnace, it is detected that the temperature at the target position on one side suddenly rises from 101°C to 141°C, and the duration is greater than 30 seconds. The outlet blockage is the second most serious degree, and the temperature at the target position on the other side remains unchanged, that is, the outlet blockage on the other side is not blocked, and the degree of deviation at the target position on the other side is slight deviation. Tracking the quality of the hot-rolled product of the ingot, slight slag occurs on the surface of the coil. When casting to the 7th furnace, the immersion depth of the nozzle was adjusted to 140mm, and the target depth was 450-600mm. It was detected that the temperature at the target position suddenly rose from 115°C to 166°C and lasted for more than 60 seconds. The outlet blockage was the second most serious degree. The temperature at the target position on the other side remained unchanged, that is, the outlet blockage on the other side was not blocked. The degree of deviation at the target position on the other side was severe deviation. The replacement nozzle was observed and it was found that the immersed nozzle was blocked. The quality of the hot-rolled product of the ingot was tracked and severe slag was found on the surface of the coil.

[0064] In some embodiments, the method further includes: determining a temperature difference between the target position on one side and the target position on the other side; and determining a flow deviation condition of the water outlet according to a change in the temperature difference.

[0065] In some embodiments, determining the bias condition of the water outlet according to the change of the temperature difference includes: determining the bias condition of the water outlet according to the target difference between the current temperature difference and the initial temperature difference and the duration corresponding to the target difference, wherein the initial temperature difference is the temperature difference of the second target time after the continuous casting machine starts pouring, the current temperature difference is the temperature difference of the current time, and the current time is after the second target time. The initial temperature difference can be understood as the temperature difference when the two outlets are not blocked, which is usually close to 0. The second target time can be 10 minutes.

[0066] In some embodiments, the determining of the deviation of the water outlet according to the target difference between the current temperature difference and the initial temperature difference and the duration corresponding to the target difference includes: obtaining 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 difference threshold, and the first duration threshold is greater than the second duration threshold; if the duration of the target difference being greater than or equal to the first difference threshold is greater than the first duration threshold, the deviation of the water outlet is severe deviation; if the absolute value of the target difference is greater than or equal to the second difference threshold and the duration of the target difference being less than the first difference threshold is greater than the second duration threshold, the deviation of the water outlet is slight deviation. The first difference threshold may be 50°C, the second difference threshold may be 30°C, the first duration threshold may be 60s, and the second duration threshold may be 30s.

[0067] In some embodiments, after determining the deviation condition of the water outlet according to the target difference between the current temperature difference and the initial temperature difference and the duration corresponding to the target difference, it also includes: determining the position of the deviation according to the positive or negative sign of the target difference.

[0068] In some embodiments, the position of the bias flow is determined based on the positive or negative of the target difference, including: if the target difference is a negative value, there is a bias flow at the outlet on one side relative to the outlet on the other side; if the target difference is a positive value, there is a bias flow at the outlet on the other side relative to the outlet on one side, wherein the bias flow is severe bias flow or slight bias flow.

[0069] Figure 3 A block diagram of an outlet blocking condition determination device in an embodiment of the present application is shown, see Figure 3 According to the second aspect of the present application, there is provided an outlet blocking condition determining device 100, comprising:

[0070] The first determination unit 101 determines a target depth according to an immersion depth of the nozzle, wherein the target depth is the depth of a target position on a narrow copper plate, the immersion depth of the nozzle is the depth of the nozzle relative to the molten steel liquid surface, the nozzle is an immersion nozzle, the nozzle has two outlets, the number of the narrow copper plates is two, the two narrow copper plates are arranged oppositely, the narrow copper plates and the outlets are arranged correspondingly, the outlets spray the molten steel to 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 condition of the outlet corresponding to the narrow copper plate according to the temperature change condition of the target position.

[0072] In the present application, when the water outlet is blocked, the temperature of the target position on the corresponding narrow copper plate will change significantly. Therefore, based on the temperature change of the target position, the blockage condition of the corresponding outlet of the narrow copper plate can be determined in time.

[0073] Based on the same inventive concept, as a third aspect, the present application also provides a computer-readable storage medium on which is stored a program product capable of implementing the above-mentioned method for determining a water outlet blockage in the present specification. In some possible implementations, various aspects of the present application can also be implemented in the form of a program product, which includes a program code. When the program product is run on a terminal device, the program code is used to enable the terminal device to execute the steps according to various exemplary implementations of the present application described in the above-mentioned "Exemplary Method" section of the present specification.

[0074] refer to Figure 4 As shown, a program product 200 for implementing the above method according to an embodiment of the present application is described, which can adopt a portable compact disk read-only memory (CD-ROM) and include program code, and can be run on a terminal device, such as a personal computer. However, the program product of the present application is not limited thereto. In this document, a readable storage medium can be any tangible medium containing or storing a program, which can be used by or in combination with an instruction execution system, an apparatus or a device.

[0075] The program product may use any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may 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 (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or 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.

[0076] Computer readable signal media may include data signals propagated in baseband or as part of a carrier wave, in which readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Readable signal media may also be any readable medium other than a readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0077] The program code embodied on the readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the foregoing.

[0078] Program code for performing the operations of the present application may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., using an Internet service provider to connect through the Internet).

[0079] As another aspect, the present application also provides an electronic device capable of implementing the above method.

[0080] Those skilled in the art will appreciate that various aspects of the present application may be implemented as a system, method or program product. Therefore, various aspects of the present application may be specifically implemented in the following forms, namely: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software, which may be collectively referred to as "circuit", "module" or "system" herein.

[0081] Refer to the following Figure 5 The electronic device 300 according to this embodiment of the present application is described. Figure 5 The electronic device 300 shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0082] like Figure 5 As shown, the electronic device 300 is in the form of a general 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 the storage unit 320 and the processing unit 310).

[0083] The storage unit stores program codes, which can be executed by the processing unit 310, so that the processing unit 310 executes the steps described in the above “Example Method” section of this specification according to various exemplary implementations of the present application.

[0084] The storage unit 320 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM) 321 and / or a cache memory unit 322 , and may further include a read-only memory unit (ROM) 323 .

[0085] The storage unit 320 may also include a program / utility 324 having a set (at least one) of program modules 325, such program modules 325 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0086] Bus 330 may represent one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0087] The electronic device 300 may also communicate with one or more external devices 400 (e.g., keyboards, pointing devices, Bluetooth devices, etc.), one or more devices that enable a user to interact with the electronic device 300, and / or any device that enables the electronic device 300 to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed through an input / output (I / O) interface 350. Furthermore, the electronic device 300 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through a network adapter 360. Figure 5 As shown, the network adapter 360 communicates with other modules of the electronic device 300 via the 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 the 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 a computer-readable medium or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of the present 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, hard wiring, or a combination of any of these. In addition, each functional unit may be integrated into a processing unit, each unit may exist physically separately, or two or more units may be integrated into one 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. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0090] The units described as separate components may or may not be physically separated, and the components of the control device may or may not be physical units, that is, they may be located in one place or distributed in multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0091] If the integrated unit is implemented in the form of 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 the present application can be essentially or partly or all or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk, etc., which can store program code.

[0092] The above description is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present 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 according to the immersion depth and the spraying angle of the immersion nozzle, wherein the immersion nozzle comprises a vertically arranged main pipe, and both side walls of the main pipe are respectively provided with outlets for spraying molten steel toward the narrow copper plate on the same side, and the outlets are arranged obliquely downward from the inside of the main pipe to the outside, and the projection of the outlet 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 liquid surface of the molten steel, the spraying 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, and the target position is the position where the molten steel hits the narrow copper plate; According to the temperature change of the target position, the blockage condition of the outlet corresponding to the narrow copper plate is determined.

2. A method for determining nozzle blockage according to claim 1, characterized in that: Determining the blockage condition of the outlet corresponding to the narrow copper plate according to the temperature change condition of the target position includes: Detecting the target location at an initial temperature and a current temperature at a current time; Determining a temperature difference at the current time according to the current temperature and the initial temperature; According to the temperature difference, the blockage condition of the outlet corresponding to the narrow copper plate is determined.

3. A method for determining nozzle blockage according to claim 2, characterized in that: Determining the blockage condition of the outlet corresponding to the narrow copper plate according to the temperature difference includes: Get the temperature threshold; The blockage condition of the outlet corresponding to the narrow copper plate is determined according to the magnitude relationship between the temperature difference and the temperature threshold and the corresponding duration.

4. A method for determining nozzle blockage according to claim 3, characterized in that: The temperature threshold includes a first threshold and a second threshold, the first threshold is greater than the second threshold, the blocking condition includes a first blocking degree, a second blocking degree, a third blocking degree and a fourth blocking degree with decreasing severity, and determining the blocking condition of the outlet corresponding to the narrow copper plate according to the magnitude relationship between the temperature difference and the temperature threshold and the corresponding duration, includes: Obtain a first time threshold and a second time threshold; If the duration during which the temperature difference is greater than or equal to the first threshold is greater than the first time threshold, 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 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, the congestion condition is the second congestion degree; If the temperature difference is greater than or equal to the second threshold, and the duration of being less than the first threshold is greater than 0 and less than or equal to the second time threshold, then the congestion condition is the third congestion degree; If the temperature difference is greater than 0 and the duration of being less than the second threshold is greater than 0, the blockage condition is a fourth blockage degree.

5. A method for determining nozzle blockage according to claim 1, characterized in that: Also includes: determining a temperature difference between the target location on one side and the target location on the other side; The flow deviation of the water outlet is determined according to the change of the temperature difference.

6. A method for determining nozzle blockage according to claim 1, characterized in that: The method of determining the target depth according to the immersion depth and the spray angle of the immersion nozzle includes: The target depth is determined according to a preset target relationship, the immersion depth and the injection angle, wherein the target relationship is a corresponding relationship between the immersion depth of the water nozzle, the outlet injection angle and the depth of the position on the narrow copper plate.

7. A method for determining nozzle blockage according to claim 6, characterized in that: The target relationship is: when the outlet spray angle remains unchanged, the deeper the water inlet immersion depth is, the deeper the target depth is; when the water inlet immersion depth remains unchanged, the larger the outlet spray angle is, the deeper the target depth is.

8. A device for determining outlet blockage, characterized in that: include: A first determination unit determines a target depth according to an immersion depth and a spraying angle of the immersion nozzle, wherein the immersion nozzle comprises a vertically arranged main pipe, and both side walls of the main pipe are respectively provided with outlets for spraying molten steel toward the narrow copper plate on the same side, and the outlets are arranged obliquely downward from the inside of the main pipe to the outside, and the projection of the outlet 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 liquid surface of the molten steel, the spraying 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, and the target position is the position where the molten steel hits the narrow copper plate; The second determining unit determines the blockage condition of the outlet corresponding to the narrow copper plate according to the temperature change condition of the target position.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: The computer program includes executable instructions, and when the executable instructions are executed by a processor, the method described in any one of claims 1 to 7 is implemented.

10. An electronic device, characterized in that: include: one or more processors; A memory for storing executable instructions of the processor, wherein when the executable instructions are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1 to 7.

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