Casting blank uncutting abnormality identification and disposal method, computer device and storage medium

Abstract

This invention discloses a method, computer equipment, and storage medium for identifying and handling billet incomplete cutting anomalies. The method includes: S1, if all relevant parameters of the continuous casting production process meet the corresponding preset conditions, proceed to S2; S2, if no billet cutting completion signal is received, proceed to S3; if a billet cutting completion signal is received, proceed to S4; S3, if Tc ≥ S*L0 / Va, output a delayed alarm signal; S4, if the roller speed Rv ≤ 0, output a fault alarm signal; if Rv > 0, proceed to S5; S5, if T - T0 ≥ Tn, proceed to S6; S6, if no photoelectric switch signal is received, proceed to S7; S7, send a pop-up action command to the human-machine interface component; responding to the selected speed reduction option, such as if the current casting speed is greater than the minimum process casting speed, reduce the current casting speed to the preset minimum process casting speed at a preset speed reduction rate. This invention ensures the accuracy of billet incomplete cutting anomaly identification; when a billet incomplete cutting anomaly occurs, it can automatically enter the handling procedure.

Description

Technical Field

[0001] This application relates to the field of continuous casting production technology, and in particular to a method for identifying and handling abnormalities of uncut billets, computer equipment, and storage medium. Background Technology

[0002] Continuous casting is a crucial link in the main production line of a steel plant, undertaking the important technological task of converting molten steel into slabs, providing qualified raw materials for subsequent hot rolling processes. Currently, during continuous casting, each continuous casting machine is equipped with at least 1-2 billet tapping and cutting operators for real-time monitoring and operation, facilitating timely detection and handling of anomalies. Billet tapping and cutting operators are important positions in continuous casting operations, but they also have their unique characteristics. First, the site is a heat source area, with harsh steel tapping environments, especially hot in summer, posing a significant challenge to the physical fitness of each operator. Second, the cutting area involves solid steel billets exceeding 850℃, with slag splashing, high-temperature flames, and the billets and cutting carts being in motion. Accidents such as large-scale slag splashing or deflagration pose a significant safety hazard to the billet tapping or cutting operators. Third, many production process alarms require manual confirmation, increasing the workload for operators, raising the risk of human error, and increasing the risk of production failures. Therefore, if abnormal conditions occur during the continuous casting production process and timely warnings and controls are not implemented, serious production accidents will be difficult to avoid, and production efficiency will be reduced.

[0003] As the world promotes smart manufacturing, unmanned automated steel casting technology is also being vigorously promoted. The number of on-site operators is gradually decreasing, and there are even periods when no operators are present at the production site, or even when certain hazardous positions are unattended for extended periods. If an abnormality occurs, such as a billet not being cut, and personnel cannot detect it in time, the untimely or improper handling can lead to the escalation of the accident. This can damage cutting and downstream equipment, and in severe cases, cause serious accidents such as personnel injuries and casting machine shutdowns. Each accident can result in losses ranging from tens of thousands to hundreds of thousands of yuan. This is also a major factor hindering the realization of unmanned steel casting in continuous casting.

[0004] The so-called "slab not cut off" fault refers to a situation during normal production where, due to various reasons, the slab fails to be completely cut off by the cutting system in the cutting area according to the system's preset length. If this is not detected and handled promptly, it can cause continuous casting production and safety accidents. This abnormal production accident is called a "slab not cut off" accident in continuous casting production processes. If the slab not cut off fault is not handled in a timely manner or is handled improperly, it can cause equipment accidents in the short term, and in the long term, it can lead to serious production accidents such as personal injury or casting machine shutdown. The direct economic losses caused by each accident range from tens of thousands to millions of yuan. Abnormal factors such as the cutting system and cutting gas can lead to the occurrence of slab not cut off faults.

[0005] Currently, the conventional approach to continuous casting steel pouring is through manual observation and handling. While this method can address a range of issues arising from billet not being cut off, it also has several drawbacks. Firstly, human observation can be oversighted and operations can be delayed, easily leading to the escalation and severity of losses, a phenomenon that frequently occurs during production. Secondly, the on-site environment is harsh, involving high temperatures, radiation, flames, high noise, and high dust levels; prolonged shifts can cause harm to the health of each billet unloading or cutting operator. Furthermore, without the ability to automatically identify and handle billet not-cutting anomalies, unmanned continuous casting technology cannot be achieved.

[0006] Therefore, there is an urgent need to develop an intelligent identification and automatic handling technology for billet not being cut off based on roller conveyor speed and billet tracking. The aim is to automatically identify and quickly and correctly handle billet not being cut off when there is no on-site supervision in the continuous casting cutting and billet unloading area. This solves the potential problem of billet not being cut off properly and quickly when there is no on-site supervision in continuous casting, thus preventing the escalation of accidents.

[0007] To address this issue, Chinese patent document "CN114589376B A Method for Identifying Uncut Billets in Flame Cutting Machines" provides a method for identifying uncut billets. During continuous casting, the method monitors the changes in the current of the roller conveyor motor before and after cutting to generate an alarm for uncutting. In the current-time curve of the roller conveyor motor, when the current significantly increases, the PLC logic control program issues an alarm for uncutting. This alarm function is also implemented through an HMI screen. This improves production stability and safety, achieving industrial automation and equipment safety. It solves the problem that the high casting speed and the heat insulation cover on the conveyor rollers in the continuous casting process often lead to uncut billets that are difficult to detect manually, potentially causing production accidents.

[0008] The inventors recognize that the technical solutions described in the aforementioned patent documents only identify the abnormality of uncut billets, without providing a corresponding automatic handling method. Furthermore, there are many problems with the identification of uncut billet abnormalities:

[0009] First, the proposed solution only uses motor current as the threshold for judgment. In actual production, this group of motors is controlled by a transmission system. A jam or transmission failure in one motor can lead to increased motor current or failure to start normally. Furthermore, billet stacking can also cause increased motor current. In other words, a high motor current does not necessarily indicate that the billet has not been cut. Therefore, relying solely on motor current to determine if the billet has not been cut is inaccurate. Second, the proposed solution does not consider this type of anomaly or malfunction. When billet stacking occurs behind the cutting rollers, and the cut billet needs to run slowly or follow the movement, a situation of billet not being cut can occur, even though the motor current is normal. Third, when the cutting system itself malfunctions, resulting in no cutting completion signal being returned, the post-cutting rollers cannot automatically start. This means the roller motor current remains 0, less than the set threshold, but the billet is still in an uncut state. Fourth, there is no effective automatic handling method for different uncut billet anomalies. Summary of the Invention

[0010] Based on this, in response to the above-mentioned technical problems, a method for identifying and handling billet uncutting anomalies, a computer device, and a storage medium are provided to solve the technical problems that existing methods for identifying billet uncutting anomalies rely solely on motor current, which is not accurate enough, and lack corresponding automatic handling methods for billet uncutting anomalies.

[0011] To achieve the above objectives, this application provides the following technical solution:

[0012] Firstly, a method for identifying and handling abnormalities in uncut billets includes:

[0013] S1. Obtain relevant parameters of the continuous casting production process conditions and determine whether the relevant parameters meet the corresponding preset conditions; if the relevant parameters meet the corresponding preset conditions, proceed to step S2.

[0014] S2, acquire the billet cutting completion signal Xn at a preset time period Δt1, and determine whether the billet cutting completion signal Xn has been received; if the billet cutting completion signal Xn has not been received, proceed to step S3; if the billet cutting completion signal Xn has been received, proceed to step S4.

[0015] S3, collect the pulling speed Va of the preset length L0, calculate the time interval Tc between the last received billet cutting completion signal Xn, and determine whether Tc≥S*L0 / Va is satisfied, where S is the preset safety factor; if satisfied, output the cutting delay alarm signal and return to step S1; if not satisfied, return to step S2.

[0016] S4, delay for the first time length Tr to collect the roller conveyor speed Rv, and determine whether the roller conveyor speed Rv is greater than 0; if the roller conveyor speed Rv is less than or equal to 0, output the roller conveyor system fault alarm signal; if the roller conveyor speed Rv is greater than 0, execute step S5.

[0017] S5, obtain the cutting completion time T0 and the acquisition time T, and determine whether T-T0≥Tn is satisfied, where Tn is a preset time threshold, and the acquisition time T is the acquisition time of the photoelectric switch signal W1 determined by the second time length Δt2; if satisfied, proceed to step S6;

[0018] S6, delay for a second time length Δt2 to collect the photoelectric switch signal W1 of the roller conveyor, and determine whether the photoelectric switch signal W1 is received; if the photoelectric switch signal W1 is received, return to step S1; if the photoelectric switch signal W1 is not received, execute step S7;

[0019] S7, send a pop-up action command to the human-machine interaction component, so that the human-machine interaction component displays operation options through a pop-up window; the operation options include speed reduction and ignore; in response to the speed reduction option selected on the human-machine interaction component, collect the current pulling speed; if the current pulling speed is greater than the preset minimum process pulling speed Vmin, reduce the current pulling speed to the preset minimum process pulling speed Vmin at a preset speed reduction rate a1.

[0020] Optionally, the relevant parameters of the continuous casting production process conditions include the working mode parameters of the casting machine, the status parameters of the cutting system, the status parameters of the length measurement system, the real-time casting speed parameters of the casting machine, the working mode parameters of the argon blowing system, and the process parameters of the cutting gas.

[0021] Further optionally, determining whether all the relevant parameters meet the corresponding preset conditions includes:

[0022] Determine whether the casting machine is in pouring mode;

[0023] Determine if the cutting system is functioning normally and is in fully automatic control mode;

[0024] Determine if the fixed-length measurement system is in normal working order and is in fully automatic control mode;

[0025] Determine whether the casting machine's casting speed is not lower than the minimum equipment casting speed;

[0026] Determine whether the argon blowing system is in remote control mode.

[0027] Determine whether the oxygen and natural gas pressures meet the generation requirements.

[0028] Optionally, the preset safety factor S = 1.1.

[0029] Optionally, step S7 further includes:

[0030] If no option is selected in the human-machine interaction component within the preset timing period, it is considered that the speed reduction option has been selected, and the current pulling speed is collected; if the current pulling speed is greater than the preset minimum process pulling speed Vmin, the current pulling speed is reduced to the preset minimum process pulling speed Vmin at the preset speed reduction rate a1.

[0031] Further optionally, the preset time period Δt1 is 5 seconds, the first time length Tr is 8 seconds, the second time length Δt2 is 22 seconds, the preset timing period is 30 seconds, and the preset minimum process pulling speed Vmin is 0.7m / min.

[0032] Optionally, step S7 further includes:

[0033] Send an alarm signal for abnormal billet not being cut off to the audible and visual alarm device;

[0034] Adjust the argon blowing system to abnormal operating mode.

[0035] In a second aspect, a computer device includes a memory and a processor, the memory storing a computer program, the processor executing the computer program to implement the steps of the method described in any one of the first aspects.

[0036] Thirdly, a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method described in any one of the first aspects:

[0037] The present invention has at least the following beneficial effects:

[0038] The method for identifying and handling billet uncutting anomalies provided in this invention comprises three main parts: the first stage of collecting and monitoring continuous casting production process conditions, the second stage of processing continuous casting production process data, and the third stage of automatically handling billet uncutting anomalies. This invention, for the first time, incorporates the roller conveyor speed, fixed-length cutting cycle, cutting completion signal, and billet tracking signal when billet uncutting occurs into the monitoring system, and combines this with a comprehensive evaluation based on actual working conditions. This systematic and comprehensive assessment of the billet uncutting state ensures the accuracy of billet uncutting anomaly identification and guarantees the accuracy of anomaly identification. When a billet uncutting anomaly occurs, a rapid handling procedure is automatically initiated, thus solving the potential problem of uncorrected and rapid handling of billet uncutting anomalies during unattended continuous casting operations, which could lead to escalation of accidents. Attached Figure Description

[0039] Figure 1 This is a flowchart illustrating a method for identifying and handling uncut billet abnormalities according to an embodiment of the present invention.

[0040] Figure 2 A logic control diagram for a method of identifying and handling uncut billet abnormalities according to an embodiment of the present invention;

[0041] Figure 3 This is an internal structural diagram of a computer device provided in one embodiment of the present invention. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0043] In one embodiment, such as Figure 1 As shown, a method for identifying and handling abnormalities of uncut billets is provided, including the following steps:

[0044] Step 1, collecting and monitoring continuous casting production process conditions, including step S1:

[0045] S1. Obtain the relevant parameters of the continuous casting production process conditions and determine whether the relevant parameters meet the corresponding preset conditions; if the relevant parameters meet the corresponding preset conditions, proceed to step S2.

[0046] Among them, the relevant parameters of the continuous casting production process include the working mode parameters of the casting machine, the status parameters of the cutting system, the status parameters of the length measurement system, the real-time casting speed parameters of the casting machine, the working mode parameters of the argon blowing system, and the process parameters of the cutting gas.

[0047] Determining whether all relevant parameters meet the corresponding preset conditions includes:

[0048] Determine whether the casting machine is in pouring mode;

[0049] Determine if the cutting system is functioning normally and is in fully automatic control mode;

[0050] Determine if the fixed-length measurement system is in normal working order and is in fully automatic control mode;

[0051] Determine whether the casting machine's casting speed is not lower than the minimum equipment casting speed;

[0052] Determine whether the argon blowing system is in remote control mode.

[0053] Determine whether the oxygen and natural gas pressures meet the generation requirements.

[0054] In other words, step one involves collecting data related to production process conditions, including collecting parameters of the casting machine's operating mode, the status of the cutting system and the length measurement system, collecting real-time casting speed parameters, collecting the operating mode of the argon blowing system, and collecting process parameters of the cutting gas.

[0055] When the collected data shows that the casting machine is in "pouring" mode, the cutting system and length measurement system are normal and in "fully automatic" mode, the casting machine speed is not lower than the minimum equipment speed, the argon blowing system is in "remote" control mode, and the oxygen and gas process parameters are normal, then proceed to step two; otherwise, continue collecting and automatically monitoring the casting machine's production status.

[0056] Step 2, continuous casting production process data processing, including steps S2-S6:

[0057] S2, acquire the billet cutting completion signal Xn at a preset time period Δt1, and determine whether the billet cutting completion signal Xn has been received; if the billet cutting completion signal Xn has not been received, proceed to step S3; if the billet cutting completion signal Xn has been received, proceed to step S4.

[0058] S3: Collect the drawing speed Va of the preset length L0, calculate the time interval Tc between the last received billet cutting completion signal Xn, and determine whether Tc ≥ S * L0 / Va, where S is a preset safety factor that needs to be determined by comprehensively considering factors such as the length and width of the billet to be cut, the cutting speed, and the drawing speed; if satisfied, output a cutting delay alarm signal and return to step S1; if not satisfied, return to step S2; S can be, but is not limited to, 1.1;

[0059] S4, delay for the first time length Tr to collect the roller conveyor speed Rv, and determine whether the roller conveyor speed Rv is greater than 0; if the roller conveyor speed Rv is less than or equal to 0, output the roller conveyor system fault alarm signal; if the roller conveyor speed Rv is greater than 0, execute step S5.

[0060] S5, obtain the cutting completion time T0 and the acquisition time T, and determine whether T-T0≥Tn is satisfied, where Tn is a preset time threshold and the acquisition time T is the acquisition time of the photoelectric switch signal W1 determined by the second delay time length Δt2; if satisfied, proceed to step S6;

[0061] S6, delay for a second time length Δt2 to collect the photoelectric switch signal W1 of the roller conveyor, and determine whether the photoelectric switch signal W1 is received; if the photoelectric switch signal W1 is received, return to step S1; if the photoelectric switch signal W1 is not received, execute step S7.

[0062] The preset time period Δt1 is 5 seconds, the first time length Tr is 8 seconds, and the second time length Δt2 is 22 seconds.

[0063] Step 3, Automatic Handling of Incomplete Slab Cutting Abnormalities, including Step S7:

[0064] S7, send a pop-up action command to the human-machine interaction component, so that the human-machine interaction component displays operation options through a pop-up window; the operation options include speed reduction and ignore; in response to the speed reduction option selected on the human-machine interaction component, collect the current pulling speed; if the current pulling speed is greater than the preset minimum process pulling speed Vmin, reduce the current pulling speed to the preset minimum process pulling speed Vmin at the preset speed reduction rate a1; otherwise, keep the current pulling speed unchanged.

[0065] Furthermore, step S7 also includes:

[0066] If no option is selected in the human-computer interaction component within the preset timing period, it is considered that the speed reduction option has been selected, and the current pulling speed is collected; if the current pulling speed is greater than the preset minimum process pulling speed Vmin, the current pulling speed is reduced to the preset minimum process pulling speed Vmin at the preset speed reduction rate a1.

[0067] The preset timing period is 30 seconds, and the preset minimum process speed Vmin is 0.7 m / min.

[0068] Furthermore, step S7 also includes:

[0069] Send an alarm signal for abnormal billet not being cut off to the audible and visual alarm device;

[0070] Adjust the argon blowing system to abnormal operating mode.

[0071] Specifically, the relevant production process conditions for continuous casting in step one are described in detail below:

[0072] (1) The continuous casting machine has five working modes: "maintenance", "preparation", "holding", "pouring" and "tail billet". Among them, the "pouring" mode is the normal working mode.

[0073] (2) The cutting system and the length measuring system have two control modes: “fully automatic” and “semi-automatic”. The “fully automatic” mode is the normal control mode.

[0074] (3) The minimum allowable pulling speed V0 of the equipment is 0.3m / min, and the minimum allowable pulling speed Vmin set by the process is 0.7m / min;

[0075] (4) The argon blowing system has two control modes: "remote" and "local". The "remote" mode is the normal control mode.

[0076] (5) Cut the oxygen and natural gas used for cutting, and judge whether the oxygen and natural gas are in normal condition by the pressure of oxygen and natural gas.

[0077] In other words, the first step, the collection and monitoring of continuous casting production process conditions, includes:

[0078] 1) Collect the working mode parameters of the continuous casting machine to confirm that it is actually in "pouring" mode;

[0079] 2) Collect the working modes of the cutting system and the length measurement system to confirm that the actual control mode is "fully automatic";

[0080] 3) Collect the real-time casting speed parameters of the casting machine and confirm that the casting speed at that time was 1.1 m / min;

[0081] 4) The cut length is 11m and the width is 1300mm;

[0082] 5) The pressure for collecting oxygen is 1.5 MPa, and the pressure for natural gas is 0.3 MPa;

[0083] 6) Collect the working mode of the argon blowing system and confirm that it is actually in "remote control" mode;

[0084] 7) Confirm that the collected casting machine working mode is "pouring" mode; the cutting system and length measurement system working mode is "fully automatic" mode; the casting machine pulling speed is 1.1m / min and not lower than the minimum equipment pulling speed of 0.3m / min; the oxygen and natural gas pressure meet the production requirements; the argon blowing system control mode is "remote"; if all the above conditions are met, proceed to the second stage of continuous casting production process data processing.

[0085] In other words, step two includes:

[0086] (1) Collect the billet cutting signal Xn from the cutting system. When Xn = false, proceed to step (2) of step two; otherwise, proceed to step (3) of step two.

[0087] (2) Set the fixed length L0, collect the pulling speed Va of the fixed length, collect the time Tc from the last time the cutting completion signal was received, and determine Tc>=1.1*L0 / Va? Where the safety factor is 1.1; when the condition is true, issue a cutting delay alarm signal, prompt manual intervention, and return to step one; when the condition is false, return to step two, item (1);

[0088] (3) Set the roller speed Rv, delay Tr to collect the roller speed Rv, and determine if Rv>0? If not, issue a fault alarm signal to prompt manual intervention and return to step one; if true, proceed to step two, item (4).

[0089] (4) Set T0 as the time when the cutting is completed, set Tn as the preset time threshold, collect the time T, and determine whether T-T0>=Tn? If the condition is true, proceed to step (5) of step two; otherwise, continue to wait.

[0090] (5) Set the tracking signal of the cut billet to W1, collect the signal of W1, and return to step one when W1 is true; otherwise, proceed to step three.

[0091] For example, step two, continuous casting production process data processing, includes:

[0092] 1) Acquire the cutting completion signal Xn with a period of Δt1 = 5s. When Xn = false, determine Tc >= 1.1 * L0 / Va. In actual production, when Tc = 5min and Va = 1.1m / min, we calculate that 5 < 1.1 * 11 / 1.1 = 11, so continue to acquire the cutting completion signal Xn. In actual production, when Tc = 10.2min, the cutting completion signal Xn = true is received. At this time, the time T0 is 10:32:15 AM.

[0093] 2) After a delay of Tr=8s, the speed Rv of a set of rollers after cutting is collected. In actual production, the collected roller speed Rv=15m / min>0 indicates that the roller system has been started and there is no fault.

[0094] 3) After receiving the signal Rv = 15m / min > 0, a delay of Δt2 = 22s is made to collect the signal W1 from the photoelectric switch of the roller conveyor after cutting. The delay Δt2 is determined based on the statistical data of the actual billet passage time and the position requirement of the next billet to be cut, and the longest time that the billet passes through the photoelectric switch after cutting in actual production is taken. The specific statistical calculation of the billet tracking delay Δt2 is shown in Table 1.

[0095]

[0096] In actual production, after a delay of Δt2 = 22s after cutting, i.e. at time T = 10:32:38, no signal was received indicating that the billet had passed W1. This means that T - T0 (= 22s) >= Tn (= 22s), indicating that a billet not being cut off has occurred. The actual situation is that the cutting gun position signal is incorrect, which causes a 100mm width in the middle of the billet to remain uncut. As a result, the uncut billet cannot leave the cutting area and will soon enter the third stage of the billet not-cutting abnormality automatic handling procedure.

[0097] In other words, step three includes:

[0098] (1) Output an audible and visual alarm to remind relevant personnel that an abnormality of billet not being cut off has just occurred.

[0099] (2) Pop-up options: ① Slow down; ② Ignore; Select different options to execute the corresponding program. The pop-up countdown is 30 seconds. If no selection is made within the countdown period, the default is to handle it by ① slowing down.

[0100] (3) Select pop-up option ① After deceleration, collect the pulling speed V, set the minimum process pulling speed Vmin, and set the deceleration rate a1; the pulling speed is rapidly reduced to Vmin at the rate a1; adjust the argon gas to abnormal working mode.

[0101] (4) When selecting option ② to ignore, no manual or automatic control adjustments will be made.

[0102] (5) The automatic handling procedure for the abnormality of the billet not being cut off ends.

[0103] In other words, the automatic handling of the abnormality of the uncut billet includes:

[0104] 1) Once an abnormality of uncut billet has been accurately identified on site, an audible and visual alarm signal will be issued immediately to remind on-site operators to enter the site for inspection and to take necessary manual intervention.

[0105] 2) At the same time, the automatic pop-up window will prompt the following actions: ① slow down; ② ignore.

[0106] 3) After selecting ① speed reduction, the pulling speed was 1.1m / min. The speed reduction rate was set to a1 = 6m / min2 and then reduced to the minimum set process pulling speed Vmin = 0.7m / min.

[0107] 4) At the same time, the argon system automatically adjusts to the abnormal mode.

[0108] 5) The automatic handling of the billet not being cut off has ended.

[0109] 6) If you select ② Ignore, no automatic speed reduction or other remote operation interventions will be performed.

[0110] 7) The automatic handling of the billet not being cut off has ended.

[0111] As the world promotes smart manufacturing, automated continuous casting is also being vigorously implemented, gradually reducing the number of on-site operators and even leading to periods where no operators are present at the production site. However, if an anomaly occurs where the billet is not cut off and personnel cannot detect it in time, the delay in handling can escalate the accident. This is a major factor hindering the realization of unmanned continuous casting.

[0112] In response to the above situation, there is an urgent need to develop an automatic identification and handling technology for billet incomplete cutting anomalies based on roller conveyor speed and billet tracking. The aim is to automatically identify and quickly and correctly handle billet incomplete cutting anomalies when the continuous casting site is unattended. This solves the potential for escalation of accidents caused by the failure to properly and quickly handle billet incomplete cutting anomalies when the continuous casting site is unattended. Based on the automation control technology of continuous casting production process and combined with on-site operating experience, the following concept is proposed: By comprehensively judging the roller conveyor speed, billet cutting cycle, cutting completion signal, and billet tracking in the cutting zone, the occurrence of billet incomplete cutting anomalies can be identified, and accurate fault location and rapid handling can be performed, thereby achieving intelligent identification and automatic handling of billet incomplete cutting anomalies.

[0113] This invention provides a method for identifying and quickly handling billet uncutting anomalies based on roller conveyor speed and billet tracking. The implementation process is divided into an identification stage and an automatic handling stage. Automatic identification of the billet uncutting anomaly is required before subsequent automatic and rapid handling can proceed. The method provided in this invention generally includes three main parts: the first stage of collecting and monitoring continuous casting production process conditions; the second stage of processing continuous casting production process data; and the third stage of automatically handling billet uncutting anomalies. The logic control diagram of the method provided by this invention can be found in [reference needed]. Figure 2 .

[0114] This invention first uses roller conveyor speed and billet tracking to accurately determine if a billet is not cut properly. The roller conveyor speed and billet tracking fully consider the actual production and operation conditions on site. That is, if the cutting system has not issued a cutting completion signal after the casting machine has produced a billet of a fixed length, then the cutting system is considered to have malfunctioned. If the cutting system has issued a cutting completion signal, then the post-cutting roller conveyor should automatically start to transport the billet away from the cutting area. If no roller conveyor speed signal is received, then the roller conveyor transmission is considered to have malfunctioned. If the roller conveyor has also started, then the billet will leave the cutting area within a preset time. If no billet departure signal is received, then the billet is considered not cut properly. When a billet not-cut properly occurs, a rapid handling procedure is automatically initiated to avoid being ignored or causing major accidents such as equipment damage due to delayed manual response.

[0115] The method provided in this invention is the first to incorporate the roller speed, fixed-length cutting cycle, cutting completion signal, and billet tracking signal when the billet is not cut into place into the monitoring, and to make a comprehensive judgment in combination with the actual working conditions. It systematically and comprehensively evaluates the state of the billet not being cut into place, and can accurately locate the fault and deal with it quickly once an abnormality occurs.

[0116] Considering the complexity of on-site working conditions, in addition to intelligent voice and alarm reminders, the automatic handling system also includes a manual selection window. Different handling modes can be selected based on different working conditions. The interface is simple and user-friendly, and the operation modes are flexible and diverse. When the deceleration command is selected, the system will quickly reduce to the minimum allowable casting speed. This is mainly for three reasons: firstly, to prevent billet stagnation accidents caused by excessively long billet cooling time; secondly, to allow sufficient response time for on-site manual intervention; and thirdly, to reduce billet cutting losses. It also reduces losses caused by manual operation intensity or errors.

[0117] Compared with existing technologies, this invention plays a significant role in promoting unmanned automated steel casting technology in continuous casting. After implementation, the occurrence of billet not being cut off is effectively addressed, including the frequency of occurrence and the methods for handling it. The number of on-site operators is gradually decreasing, and there are even periods when no operators are present at the production site. Major production accidents caused by billet not being cut off are greatly reduced. Equipment damage and casting machine shutdowns due to billet not being cut off are significantly reduced, lowering equipment maintenance costs and improving the production efficiency of continuous casting.

[0118] This invention addresses the problems existing in the prior art by proposing an automatic handling method for billet uncutting anomalies based on roller conveyor speed and billet tracking. This technical solution specifically addresses the current issue of the inability to automatically identify and handle billet uncutting anomalies occurring in continuous casting sites, providing a method for automatic identification and rapid handling of billet uncutting anomalies. This achieves intelligent identification and automatic handling of billet uncutting anomalies, thereby solving the potential danger of escalation of accidents caused by the failure to properly and quickly handle billet uncutting anomalies when unattended in continuous casting sites.

[0119] It should be understood that, although Figure 1-2 The steps in the flowchart are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order in which these steps are executed, and they can be performed in other orders. Figure 1-2 At least some of the steps in the process may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but may be executed at different times. The execution order of these steps or stages is not necessarily sequential, but may be executed in turn or alternately with other steps or at least some of the steps or stages in other steps.

[0120] In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 3As shown, the computer device includes a processor, memory, communication interface, display screen, and input device connected via a system bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, carrier networks, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements the method for identifying and handling incomplete billet cutting abnormalities provided in the above embodiment. The display screen can be a liquid crystal display (LCD) or an e-ink display. The input device can be a touch layer covering the display screen, buttons, a trackball, or a touchpad mounted on the computer device casing, or an external keyboard, touchpad, or mouse.

[0121] Those skilled in the art will understand that Figure 3 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0122] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program relating to all or part of the processes in the methods of the above embodiments.

[0123] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon relating to all or part of the processes in the methods of the above embodiments.

[0124] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0125] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0126] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for identifying and handling abnormalities of uncut billets, characterized in that, include: S1. Obtain relevant parameters of the continuous casting production process conditions and determine whether the relevant parameters meet the corresponding preset conditions; if the relevant parameters meet the corresponding preset conditions, proceed to step S2. S2, acquire the billet cutting completion signal Xn at a preset time period Δt1, and determine whether the billet cutting completion signal Xn has been received; if the billet cutting completion signal Xn has not been received, proceed to step S3; if the billet cutting completion signal Xn has been received, proceed to step S4. S3, collect the pulling speed Va of the preset length L0, calculate the time interval Tc between the last received billet cutting completion signal Xn, and determine whether Tc≥S*L0 / Va is satisfied, where S is the preset safety factor; if satisfied, output the cutting delay alarm signal and return to step S1; if not satisfied, return to step S2. S4, delay for the first time length Tr to collect the roller speed Rv, and determine whether the roller speed Rv is greater than 0; if the roller speed Rv is less than or equal to 0, output the roller system fault alarm signal and return to step S1; if the roller speed Rv is greater than 0, execute step S5. S5, obtain the cutting completion time T0 and the acquisition time T, and determine whether T-T0≥Tn is satisfied, where Tn is a preset time threshold, and the acquisition time T is the acquisition time of the photoelectric switch signal W1 determined by the second time length Δt2; If the condition is met, proceed to step S6; otherwise, continue waiting. S6, delay for a second time length Δt2 to collect the photoelectric switch signal W1 of the roller conveyor, and determine whether the photoelectric switch signal W1 is received; if the photoelectric switch signal W1 is received, return to step S1; if the photoelectric switch signal W1 is not received, execute step S7; S7, send a pop-up action command to the human-computer interaction component, causing the human-computer interaction component to display operation options through a pop-up window; the operation options include slowing down and ignoring. In response to the speed reduction option selected on the human-computer interaction component, the current pulling speed is collected; If the current pulling speed is greater than the preset minimum process pulling speed Vmin, the current pulling speed will be reduced to the preset minimum process pulling speed Vmin at the preset deceleration rate a1.

2. The method for identifying and handling abnormalities of uncut billets according to claim 1, characterized in that, The relevant parameters of the continuous casting production process include the working mode parameters of the casting machine, the status parameters of the cutting system, the status parameters of the length measurement system, the real-time casting speed parameters of the casting machine, the working mode parameters of the argon blowing system, and the process parameters of the cutting gas.

3. The method for identifying and handling abnormalities of uncut billets according to claim 2, characterized in that, The step of determining whether the relevant parameters all meet the corresponding preset conditions includes: Determine whether the casting machine is in pouring mode; Determine if the cutting system is functioning normally and is in fully automatic control mode; Determine if the fixed-length measurement system is in normal working order and is in fully automatic control mode; Determine whether the casting machine's casting speed is not lower than the minimum equipment casting speed; Determine whether the argon blowing system is in remote control mode. Determine whether the oxygen and natural gas pressures meet the generation requirements.

4. The method for identifying and handling abnormalities of uncut billets according to claim 1, characterized in that, The preset safety factor S = 1.

1.

5. The method for identifying and handling abnormalities of uncut billets according to claim 1, characterized in that, Step S7 also includes: If no option is selected in the human-machine interaction component within the preset timing period, it is considered that the speed reduction option has been selected, and the current pulling speed is collected; if the current pulling speed is greater than the preset minimum process pulling speed Vmin, the current pulling speed is reduced to the preset minimum process pulling speed Vmin at the preset speed reduction rate a1.

6. The method for identifying and handling abnormalities of uncut billets according to claim 5, characterized in that, The preset time period Δt1 is 5 seconds, the first time length Tr is 8 seconds, the second time length Δt2 is 22 seconds, the preset timing period is 30 seconds, and the preset minimum process pulling speed Vmin is 0.7m / min.

7. The method for identifying and handling abnormalities of uncut billets according to claim 1, characterized in that, Step S7 also includes: Send an alarm signal for abnormal billet not being cut off to the audible and visual alarm device; Adjust the argon blowing system to abnormal operating mode.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 7.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 7.

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