Automatic management method and system for molten iron tank car

Abstract

The invention provides a molten iron tank car automatic management method and system. The system comprises a control platform, a plurality of molten iron tank cars, a plurality of rails, a plurality of first detection nodes arranged at intervals in the rail direction, and a tractor and a locomotive which are located at the two ends of the rails respectively. And determining a target track of the molten iron tank car in the plurality of tracks by combining the detection data of the molten iron tank car obtained by the plurality of first detection nodes, and judging the current link of the molten iron tank car based on the detection data of the plurality of first detection nodes. And under the condition that the molten iron tank car is currently in the tank entering link, a tractor located at one end of the target track is controlled to operate, so that the molten iron tank car on the target track is pushed into the iron outlet range on the target track. According to the scheme, the track where the molten iron tank car is located and the link where the molten iron tank car is located are accurately determined by combining the detection data of the first detection nodes arranged at intervals in the track direction, then related equipment can be accurately controlled to conduct related operation on the molten iron tank car, and the full-automatic control process is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic control, in particular to a molten iron ladle automatic management method and system. BACKGROUND

[0002] The molten iron ladle plays an important role in connecting the process links such as blast furnace, electric furnace and converter in steel production, and completes the tasks of molten iron configuration, sampling, metering, transportation and distribution. As the core link of production scheduling, the timely distribution and transportation of the molten iron ladle is crucial to the continuity of production. In order to reduce cost and improve resource utilization, it is necessary to shorten the molten iron ladle turnover cycle, which can significantly improve the scheduling efficiency. Therefore, the operation performance of the molten iron ladle directly affects the rhythm and stability of the blast furnace and steelmaking production.

[0003] Under the environment of full-automatic production management, the molten iron ladle is monitored and managed by setting various detection devices and control devices. However, in the prior art, detection devices are usually only set at the entrance of the track to detect the actions of the molten iron ladle entering and leaving the track, and the existing management method lacks comprehensive detection of the molten iron ladle, which makes it difficult to realize full-automatic management and control of the molten iron ladle. SUMMARY

[0004] The purpose of the embodiment of the present application is to provide a molten iron ladle automatic management method and system to accurately determine the track and link where the molten iron ladle is located, and to realize full-automatic control process.

[0005] In a first aspect, the present application provides a molten iron ladle automatic management method applied to a molten iron ladle automatic management system, the system comprising a control platform, a plurality of molten iron ladles, a plurality of tracks, a plurality of first detection nodes arranged at intervals along the track direction, and an iron bull and a locomotive respectively located at both ends of the track, the method comprising: obtaining detection data of the molten iron ladle detected by each first detection node, and determining a target track where the molten iron ladle is located in the plurality of tracks based on the detection data of the plurality of first detection nodes; judging the current link where the molten iron ladle is located based on the detection data of the plurality of first detection nodes; in the case that the molten iron ladle is currently in a ladle-in link, controlling the iron bull located at one end of the target track to operate to push the molten iron ladle on the target track into the range of a tapping hole on the target track.

[0006] In an optional embodiment, the plurality of first detection nodes comprises a laser range finder; The step of determining the target track where the molten iron ladle is located in the plurality of tracks based on the detection data of the plurality of first detection nodes comprises: Obtaining distance values of the ladle cars detected by the laser range finder in the plurality of first detection nodes, and obtaining reference distance values between each of the tracks and the laser range finder; Comparing the detected distance values of the ladle cars with the reference distance values of each of the tracks, and determining a target track in which the ladle car is located among the plurality of tracks according to a comparison result.

[0007] In an optional embodiment, the plurality of tracks are parallel and arranged at intervals, and the plurality of first detection nodes are arranged at intervals along a length direction of the tracks; The step of determining the link in which the ladle car is currently located based on the detection data of the plurality of first detection nodes comprises: For the same ladle car, obtaining detection time points at which the ladle car is detected by each of the first detection nodes; Determining a moving direction of the ladle car according to arrangement positions of each of the first detection nodes in the length direction of the track and the detection time points of each of the first detection nodes; Determining the link in which the ladle car is currently located based on the moving direction of the ladle car.

[0008] In an optional embodiment, the plurality of first detection nodes comprise radio frequency detectors, and each of the ladle cars is marked with a radio frequency tag; The detection data comprises a ladle car number obtained by detecting the radio frequency tag by the radio frequency detector, and information of a target track in which each of the ladle cars is located and a number thereof are associated and then saved in a database in a stack manner; The method further comprises: In a case where the ladle car is in a tapping link, extracting a number of the ladle car to be tapped and a track in which the ladle car is located from the information saved in the database in the stack manner; When a tapping start signal of the track in which the ladle car is located is received, detecting an initial weight of the ladle car by a weighing device arranged in a tapping opening range of the track; When a tapping end signal of the track in which the ladle car is located is received, detecting an end weight of the ladle car by the weighing device; Determining a loading state of the ladle car in combination with the initial weight and the end weight, and marking the ladle car with the loading state.

[0009] In an optional embodiment, two tracks in the plurality of tracks form a track group, and the method further comprises: For each track group, detecting whether there is a ladle car in a half ladle state in the two tracks in the track group; If there is a ladle car in a half ladle state, the two ladle cars in a half ladle state on the two tracks are transferred to the same track.

[0010] In an optional embodiment, the method further comprises: In the case that the ladle car is in the tapping link, the number of the ladle car currently to be in the tapping link is extracted from the information saved in the database in a stack manner, and the track information associated with the number is obtained; The number of the ladle car currently in the tapping link and the track where the ladle car is located are detected by the first detection node, and the saved number and track information are checked based on the currently detected number and track information.

[0011] In an optional embodiment, the method further comprises: The loading state of the ladle car currently to be in the tapping link is obtained; In the case that the loading state is a half ladle state, it is judged whether the first detection node detects the ladle car again within a preset time, if the ladle car is detected again, it is determined that the ladle car executes the charging link again, and if the ladle car is not detected again, the tapping of the ladle car is executed and the half ladle tapping information is marked.

[0012] In an optional embodiment, the system further comprises a second detection node arranged at one end of each track, respectively; The step of controlling the iron bull at one end of the target track to operate to push the ladle car on the target track to the range of the tapping hole on the target track comprises: The iron bull at one end of the target track is controlled to operate, and the distance between the iron bull and the second detection node is obtained in real time by the second detection node during the control; Based on the distance detected in real time, it is determined whether the ladle car on the target track has been pushed to the range of the tapping hole on the target track, and the number of ladle cars between the range of the tapping hole and the iron bull is determined.

[0013] In an optional embodiment, the system further comprises a display device, and the method further comprises: The target track where each ladle car is currently located and the link where each ladle car is currently located are sent to the display device, so that the display device displays the target track where each ladle car is currently located and the link where each ladle car is currently located through a display interface.

[0014] In a second aspect, the present application provides an automatic management system for ladle cars, which comprises a control platform, a plurality of ladle cars, a plurality of tracks, a plurality of first detection nodes arranged at intervals along the track direction, and an iron bull and a locomotive respectively located at both ends of the track. Each of the first detection nodes is configured to perform detection of the molten iron ladle car and send detection data of the detected molten iron ladle car to the control platform; The control platform is configured to determine a target track in which the molten iron ladle car is located in the plurality of tracks based on the detection data of the plurality of first detection nodes; The control platform is further configured to determine a current link in which the molten iron ladle car is located based on the detection data of the plurality of first detection nodes; In a case where the molten iron ladle car is currently in the ladle entering link, the control platform is configured to control the iron bull located at one end of the target track to operate; The iron bull is configured to push the molten iron ladle car on the target track to a range of the iron tapping hole on the target track under the control of the control platform.

[0015] The present application provides an automatic management method and system for molten iron ladle cars, which comprises a control platform, a plurality of molten iron ladle cars, a plurality of tracks, a plurality of first detection nodes arranged along the track direction at intervals, and an iron bull and a locomotive respectively located at both ends of the track. By obtaining detection data of the molten iron ladle car detected by each first detection node, the detection data of the plurality of first detection nodes is combined to determine a target track in which the molten iron ladle car is located in the plurality of tracks, and the detection data of the plurality of first detection nodes is used to determine a current link in which the molten iron ladle car is located. In a case where the molten iron ladle car is currently in the ladle entering link, the iron bull located at one end of the target track is controlled to operate to push the molten iron ladle car on the target track to a range of the iron tapping hole on the target track. In this scheme, the detection data of the plurality of detection nodes arranged along the track direction is combined to accurately determine the track in which the molten iron ladle car is located and the link in which the molten iron ladle car is located, so that the related equipment can be accurately controlled to perform related operations on the molten iron ladle car, and a fully automatic control process is realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 One of the architecture schematic diagrams of the automatic management system for molten iron ladle cars provided by the embodiments of the present application; Figure 2 The second architecture schematic diagram of the automatic management system for molten iron ladle cars provided by the embodiments of the present application; Figure 3 The flowchart of the automatic management method for molten iron ladle cars provided by the embodiments of the present application; Figure 4For Figure 3 the flowchart of the sub-steps included in S11; Figure 5 For Figure 3 the flowchart of the sub-steps included in S12; Figure 6 For Figure 3 the flowchart of the sub-steps included in S13; Figure 7 the flowchart of the out-iron link control method provided by the embodiment of the present application; Figure 8 the flowchart of the out-tank link control method provided by the embodiment of the present application; Figure 9 the structural block diagram of the control platform provided by the embodiment of the present application. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0019] Please refer to Figure 1 , a possible schematic diagram of the molten iron tank car automatic management system provided by the embodiment of the present application, which includes a control platform (not shown in the figure), a plurality of molten iron tank cars, a plurality of rails, a plurality of first detection nodes (including laser range finders and radio frequency detectors) arranged along the rail direction at intervals, and a bull and a locomotive respectively located at the two ends of the rail.

[0020] In the implementation process, the locomotive and the bull can both push the molten iron tank car to move on the rail, and the first detection nodes arranged beside the rail can detect the molten iron tank car. In the case of detecting the molten iron tank car, the detection results of the molten iron tank car by the plurality of first detection nodes can be combined to determine which rail the molten iron tank car is on, and the link where the molten iron tank car is currently located can be determined. The link where the molten iron tank car is located mainly includes the in-tank link, the out-iron link and the out-tank link.

[0021] After determining the rail where the molten iron tank car is located and the link where the molten iron tank car is located, the corresponding device is controlled to perform relevant operations on the molten iron tank car.

[0022] Among them, the plurality of first detection nodes includes laser range finders and radio frequency detectors. The laser range finder can detect the distance between the molten iron tank car and the laser range finder when detecting the molten iron tank car. The radio frequency detector can scan the radio frequency tag on the molten iron tank car to obtain the relevant device information of the molten iron tank car.

[0023] Figure 1 In the implementation mode shown, a radio frequency detector is arranged at the right end of the rail, and a plurality of laser range finders are arranged at intervals along the rail direction.

[0024] In addition, as another possible implementation, the framework of the molten iron ladle car automatic management system provided by the embodiment of the present application can also be as shown in Figure 2 In this implementation, a radio frequency detector is arranged at the right end of the track, a plurality of laser range finders are arranged at intervals along the track direction, and a radio frequency detector is further arranged at intervals.

[0025] Please refer to Figure 3 On this basis, the embodiment of the present application further provides a molten iron ladle car automatic management method, which can be applied to the molten iron ladle car automatic management system as shown in Figure 1 or Figure 2 The implementation process of the automatic management method is as follows.

[0026] S11, obtaining detection data of the molten iron ladle car detected by each first detection node, and determining a target track in which the molten iron ladle car is located in the plurality of tracks by combining the detection data of the plurality of first detection nodes.

[0027] S12, judging a link in which the molten iron ladle car is currently located based on the detection data of the plurality of first detection nodes.

[0028] S13, in the case that the molten iron ladle car is currently in the ladle entering link, controlling the iron bull located at one end of the target track to push the molten iron ladle car on the target track to the range of the tapping hole on the target track.

[0029] In this embodiment, the locomotive and the iron bull can both push the molten iron ladle car to move on the track, the locomotive is mainly used to transport the molten iron ladle car to the track to perform the ladle entering operation, and the iron bull is mainly used to push the molten iron ladle car to the range of the tapping hole after the ladle entering operation, so as to facilitate the tapping operation, and after the tapping operation is completed, the molten iron ladle car is pushed away from the track to perform the ladle exiting operation.

[0030] In the process of entering the track, exiting the track and moving on the track, each first detection node detects the molten iron ladle car. Specifically, the laser range finder in the first detection node can obtain the distance between the molten iron ladle car and the laser range finder when the molten iron ladle car is detected, and then the target track in which the molten iron ladle car is located in the plurality of tracks can be determined based on the obtained distance. In addition, the radio frequency detector in the first detection node is mainly used to determine the equipment information of each molten iron ladle car, so as to track and locate each molten iron ladle car, and also facilitate accurate recording of the related information in each link of each molten iron ladle car.

[0031] Since the first detection nodes are arranged at intervals in the track direction, the time points at which the first detection nodes detect the same molten iron ladle car have a sequence, based on which the specific information of the molten iron ladle car running on the track can be determined, and thus the current link in which the molten iron ladle car is located can be determined, for example, the molten iron ladle car is in the ladle charging link, the tapping link or the ladle discharging link.

[0032] Each track is configured with a corresponding iron bull, and when the target track in which the molten iron ladle car is located is determined, the iron bull at the target track can be controlled to operate. In addition, when it is determined that the molten iron ladle car is in the ladle charging link, the iron bull at the target track can be controlled to operate to push the molten iron ladle car into the tapping range, so that the molten iron ladle car can be accurately docked when the tapping port taps.

[0033] In the embodiment, a plurality of detection nodes are arranged along the track direction, which can also avoid the problem that when a certain detection node is abnormal, it cannot be detected and thus automatic control cannot be realized, thereby ensuring the robustness of the system.

[0034] In addition, as shown in Figure 1 The radio frequency detector and the laser range finder are arranged in the order from right to left, and taking the ladle charging link as an example, the radio frequency detector can detect the number of molten iron ladle cars in the ladle charging link, and the laser range finder can also detect the number of molten iron ladle cars in the ladle charging link. Therefore, based on the number detected by the radio frequency detector and the number detected by the laser range finder, the detection accuracy of each other can be verified. For example, if the numbers detected by the two are inconsistent, it means that one of them may have a fault, and the staff can be prompted to check to eliminate the fault and ensure the accuracy of the system.

[0035] Please refer to Figure 4 In the embodiment, the step of determining the target track in which the molten iron ladle car is located in the plurality of tracks based on the detection data of the plurality of first detection nodes can be realized by the following way: S111, obtaining the distance value of the molten iron ladle car detected by the laser range finder in the plurality of first detection nodes, and obtaining the reference distance value between each track and the laser range finder.

[0036] S112, comparing the distance value of the detected molten iron ladle car with the reference distance value of each track, and determining the target track in which the molten iron ladle car is located in the plurality of tracks according to the comparison result.

[0037] In the embodiment, when the positions of each track and the installation positions of each laser range finder are determined, the distances between each laser range finder and each track can be obtained in advance by calibration as reference distance values.

[0038] Once the laser rangefinder detects the molten iron ladle car, the distance between the ladle car and the laser rangefinder can be obtained. This distance is then compared with reference distances for each track to find the matching reference distance. The track corresponding to this matching reference distance is the target track where the molten iron ladle car is located.

[0039] Because the edges of the molten iron ladle car typically extend beyond the tracks when it is on the track, the distance between the ladle car and the laser rangefinder is slightly smaller than the distance between the track and the laser rangefinder. Therefore, when comparing the distance value with various reference distance values, a match can be determined if the difference between the distance value and a certain reference distance value is less than a preset threshold.

[0040] For example, with Figure 1 In the example shown, the four tracks from top to bottom are A1, A2, A3, and A4, and the three laser rangefinders from right to left are B1, B2, and B3. For B1, the distances between A1, A2, A3, and A4 and B1 can be obtained beforehand through calibration, such as A1B1, A2B1, A3B1, and A4B1, as reference distance values. If B1 detects a molten iron ladle car, the distance P between the ladle car and B1 is obtained. This distance P is then matched with the reference distances A1B1, A2B1, A3B1, and A4B1, respectively; that is, the differences between the distance P and each of these distances are calculated. The minimum difference is obtained, and if this minimum difference is less than a preset threshold, the track corresponding to this minimum difference is determined to be the target track where the molten iron ladle car is located.

[0041] In addition, please see Figure 5 The steps described above for determining the current stage of the molten iron ladle car based on detection data from multiple first detection nodes can be implemented in the following way: S121, for the same molten iron ladle car, obtain the detection time point when each of the first detection nodes detects the molten iron ladle car.

[0042] S122, the direction of movement of the molten iron ladle car is determined based on the setting position of each of the first detection nodes along the length of the track and the detection time point of each of the first detection nodes.

[0043] S123, determine the current stage of the molten iron ladle car based on its direction of movement.

[0044] In this embodiment, multiple tracks are arranged in parallel and spaced intervals, and multiple first detection nodes are spaced apart along the length of the tracks. The placement position of each first detection node along the length of the track can be pre-defined. For example, using... Figure 1For example, the first detection nodes in the track 1 and the track 2 in FIG. 1 are taken as examples, and the positions of the first detection nodes are marked in the order from right to left.

[0045] The plurality of first detection nodes can detect the same ladle car, and each first detection node records a time point at which the ladle car is detected. By comparing the time points at which the ladle car is detected by each first detection node, the order in which the ladle car is detected by each first detection node can be determined, and the moving direction of the ladle car can be determined. For example, if the rightmost first detection node detects the ladle car first, the moving direction of the ladle car is from right to left, and if the leftmost first detection node detects the ladle car first, the moving direction of the ladle car is from left to right.

[0046] In the case where the moving direction of the ladle car is determined, the link in which the ladle car is currently located can be determined. For example, if the moving direction of the ladle car is from right to left, the link in which the ladle car is located is the charging link, and if the moving direction of the ladle car is from left to right, the link in which the ladle car is located is the discharging link.

[0047] In the embodiment, in the case where the ladle car is in the charging link, the iron bull can be controlled to push the ladle car into the taphole range. In order to enable the ladle car to be aligned with the taphole, in the embodiment, the ladle car automatic management system further comprises a second detection node arranged at one end of each track, and the second detection node can be a laser range finder.

[0048] Therefore, as a possible implementation manner, the step of controlling the iron bull at one end of the target track to operate to push the ladle car on the target track into the taphole range on the target track can be implemented by the following manner, please refer to Figure 6 : S131, controlling the iron bull at one end of the target track to operate, and obtaining the distance between the iron bull and the second detection node in real time through the second detection node during the control.

[0049] S132, determining whether the ladle car on the target track has been pushed into the taphole range on the target track based on the distance detected in real time, and determining the number of ladle cars between the taphole range and the iron bull.

[0050] In the embodiment, the stack logic is used to perform the tapping control of each ladle car, that is, the execution logic of last in first out. Therefore, when multiple ladle cars enter the ladle, the multiple ladle cars are first pushed to the leftmost side, and then the iron bull is used to push to the right to sequentially push each ladle car into the tapping range to perform the tapping operation of each ladle car, so as to ensure that each ladle car can be loaded with molten iron. Moreover, since the width of the ladle car and the spacing between the ladle cars are known, the number of the ladle cars between the tapping range and the iron bull can also be determined based on the distance between the second detection node and the iron bull.

[0051] The multiple first detection nodes include a radio frequency detector, which is arranged at the entrance of the track. Each ladle car is marked with a radio frequency tag, and the radio frequency detector can scan the radio frequency tag to obtain detection data, which includes the number of the ladle car and other information.

[0052] Since the radio frequency tag on the ladle car is often marked on one side, the ladle car may be turned when entering and exiting the ladle. Therefore, in order to ensure that the radio frequency tag of the ladle car can be scanned when entering and exiting the ladle, the radio frequency detector can be arranged in pairs. That is, one radio frequency detector is arranged at the corresponding position on each side of the track.

[0053] The radio frequency tag on the ladle car can be scanned when the ladle car enters and exits the ladle to obtain the number of the ladle car, the information of the target track where each ladle car is located, and the number association, which is then saved in the database in a stack manner.

[0054] In this way, the number of the current ladle car entering the ladle can be known. In addition, the distance between the iron bull at the initial position (that is, the leftmost position) and the tapping range can be obtained in advance by calibration.

[0055] When the iron bull pushes the ladle car, the number of the current ladle car and the distance between the second detection node and the iron bull detected in real time can be used to determine whether the rightmost ladle car has been pushed to the tapping range by the iron bull. In this way, each ladle car can be accurately pushed to the tapping range, and the automatic control of the whole process can be realized.

[0056] Please refer to Figure 7 When the ladle car is pushed to the tapping range, the tapping link is triggered, and based on the above, the method provided by the embodiment further includes the following steps: S21, in the case that the ladle car is in the tapping link, the number of the ladle car to be entered into the tapping link and the track where the ladle car is located are extracted from the information saved in the database in a stack manner.

[0057] S22, when receiving the tapping start signal of the track where the ladle truck is located, detecting the initial weight of the ladle truck by the weighing device arranged in the tapping hole range of the track.

[0058] S23, when receiving the tapping end signal of the track where the ladle truck is located, detecting the end weight of the ladle truck by the weighing device.

[0059] S24, determining the loading state of the ladle truck in combination with the initial weight and the end weight, and marking the loading state of the ladle truck.

[0060] In the embodiment, the tapping of each ladle truck is sequentially performed according to the information saved in the stacking mode during tapping, that is, the ladle truck entering the ladle later performs tapping first.

[0061] The weighing device is arranged in the tapping hole range, so that the weight of the ladle truck located in the tapping hole range can be obtained by the weighing device.

[0062] For the ladle truck in the tapping link, the ladle truck can be in an empty ladle state or a half ladle state, the empty ladle state means that no molten iron is loaded therein, and the half ladle state means that a certain amount of molten iron is loaded therein. The half ladle state can be due to the fact that the last tapping is not fully loaded, so that the tapping is performed again.

[0063] In order to record the whole process of the ladle truck, the initial weight of the ladle truck can be detected by the weighing device when the tapping start signal is triggered. If the ladle truck is in an empty ladle state, the tare weight of the ladle truck is detected, and if the ladle truck is in a half ladle state, the gross weight of the ladle truck is detected. In addition, the time information at the start of tapping also needs to be recorded.

[0064] When the tapping end signal is triggered, the end weight of the ladle truck is detected by the weighing device. In this way, the loading state of the ladle truck at the end of tapping can be determined. The loading state is mainly divided into an empty ladle state, a full ladle state and a half ladle state. Among them, the empty ladle state means that the detected gross weight is the weight of the ladle, for example, 60-80 tons. The full ladle state means that the detected net weight is not less than 90 tons, generally about 100 tons. The half ladle state means that the detected net weight is less than 90 tons.

[0065] In the embodiment, two tracks in the plurality of tracks are a track group, for example, Figure 1 Track 1 and track 2 are a group, and track 3 and track 4 are a group. Two tracks are a group, which facilitates the pushing of the ladle truck on the two tracks and the alternate execution of tapping.

[0066] To facilitate the loading of empty molten iron ladle cars, the automatic management method for molten iron ladle cars provided in this embodiment may further include the following steps: For each track group, check whether there are molten iron ladle cars with a half-loaded state on two tracks in the track group; if there are molten iron ladle cars with a half-loaded state, transfer the molten iron ladle cars with a half-loaded state on the two tracks to the same track.

[0067] In this embodiment, the weight of each molten iron ladle car can be detected using a weighing device, thereby identifying the molten iron ladle cars that are half-filled. Before the next filling, all half-filled molten iron ladle cars are transferred to the same track, thus facilitating the filling of subsequent empty molten iron ladle cars.

[0068] After completing the tapping operation, you need to perform the unloading operation. Please refer to [link / reference]. Figure 8 The automatic management method provided in this embodiment may further include the following steps: S31, when the molten iron ladle car is in the unloading stage, extract the number of the molten iron ladle car currently waiting to enter the unloading stage from the information stored in the database in a stack manner, and obtain the track information associated with the number. S32, the number of the molten iron ladle car currently in the unloading stage and its track are obtained through the first detection node, and the saved number and track information are verified based on the currently detected number and track information.

[0069] In this embodiment, the number of the molten iron ladle car and its track information are extracted from the information stored in a stack manner.

[0070] When the molten iron ladle car leaves the ladle, the first detection node can also detect the number of the molten iron ladle car and the track it is on in real time. The detection method is the same as the detection method in the ladle entry stage, and will not be repeated here.

[0071] In this way, the number of the molten iron ladle car and its track information detected in real time can be used to verify the saved number of the molten iron ladle car and its track information to check whether the saved information is incorrect.

[0072] Furthermore, as mentioned above, the molten iron ladle car may still be half-loaded after tapping. Therefore, the following steps can be performed during the unloading process: The loading status of the molten iron ladle car to be loaded into the ladle is obtained. If the loading status is half-loaded, it is determined whether the first detection node detects the molten iron ladle car again within a preset time. If it is detected again, it is determined that the molten iron ladle car will be loaded into the ladle again. If it is not detected again, the molten iron ladle car will be loaded out of the ladle and the half-loaded loading information will be marked.

[0073] In this embodiment, for a molten iron ladle car in a half-full state, if the ladle car is transferred to another track, the first detection node on the other track will detect the ladle car again. Since the transfer time is generally short, if the ladle car is detected again within a preset time, such as within 20 minutes, it is determined that the ladle car is performing the ladle loading process again, and the ladle loading process is controlled in the manner described above.

[0074] If the molten iron ladle car is not detected again within the preset time, it indicates that the molten iron ladle car has been discharged. In this case, the molten iron ladle car should be marked as half-discharge information in the process management information of the molten iron ladle car.

[0075] In addition, for molten iron ladle cars that are unloading when the ladle is full, the information should be marked as "full ladle unloading".

[0076] Furthermore, in order to intuitively display the relevant information of each molten iron ladle car, in this embodiment, the automatic management system also includes a display device, and the automatic management method may further include the following steps: The target track and current stage of each molten iron ladle car are sent to the display device so that the display device can display the target track and current stage of each molten iron ladle car through the display interface.

[0077] The automatic management method and system provided in this embodiment are implemented in a front-end and back-end combined approach in terms of overall software architecture. The front-end uses Vue to build the interface, the back-end uses C# web API interface, and the database uses SQL Server database.

[0078] In the implementation of the backend algorithm logic, a push-pop mechanism is used to recognize the entry and exit of tank numbers. The tank number information is stored in the system. Based on the weighing completion signal and weight data, the information is first bound to the tank number in the order in the stack. When the tank truck is driven away, the bound weight data is confirmed in the order of popping from the stack.

[0079] In the implementation of the main interface functions, the main interface displays the tank number result identified by the backend on the graphical display interface, intuitively indicating the current position of the tank car. After obtaining the iron tapping signal and weighing signal, the information automatically bound by the backend is displayed on the screen in real time.

[0080] It enables information binding and recording. After the molten iron ladle car enters the rails, the PLC automatically binds the ladle number and weight information based on RFID / QR code information and weighing data, and stores it in the database. At the same time, it records key information such as the time the molten iron ladle car enters the rails and the rail number.

[0081] This solution supports historical record queries by providing a user interface. Operators can query detailed information such as ladle entry / exit from the rails, molten iron discharge, and scheduling by entering batch number, ladle number, time range, and other criteria.

[0082] By developing a real-time data monitoring interface, the system displays key information such as the location, weight, and status of the molten iron ladle, allowing operators to intuitively understand the on-site situation. The system also features fault warning and alarm functions, promptly notifying operators to take appropriate action. The design incorporates scalability, facilitating future additions of new functions or integration with other systems (such as ERP and MES).

[0083] Please see Figure 9 This invention also provides a control platform, which can be a computer device, server, or other similar device. The control platform includes a memory, a processor, and a communication module. The memory, processor, and communication module are electrically connected directly or indirectly to each other to achieve data transmission or interaction. For example, these components can be electrically connected to each other through one or more communication buses or signal lines.

[0084] The memory is used to store computer programs or data. Memory can be, but is not limited to, Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), etc.

[0085] The processor is used to read / write data or programs stored in the memory and to execute the automatic management method for molten iron ladle cars provided in any embodiment of the present invention.

[0086] The communication module is used to establish communication connections between the control platform and other communication terminals via the network, and to send and receive data via the network.

[0087] It should be understood that, Figure 9The structure shown is only a schematic diagram of the control platform; the control platform may also include components such as... Figure 9 The more or fewer components shown, or having the same Figure 9 The different configurations shown.

[0088] Furthermore, embodiments of the present invention also provide a computer-readable storage medium storing machine-executable instructions, which, when executed, implement the automatic management method for molten iron ladle cars provided in the above embodiments.

[0089] Specifically, the computer-readable storage medium can be a general-purpose storage medium, such as a removable disk or hard disk. When the computer program on the computer-readable storage medium is run, it can execute the aforementioned automatic management method for molten iron ladle cars. The processes involved in the execution of the executable instructions on the computer-readable storage medium can be referred to the relevant descriptions in the above method embodiments, and will not be detailed here.

[0090] In the embodiments provided by this invention, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0091] Furthermore, the units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0092] Furthermore, the functional modules in the various embodiments of the present invention can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0093] It should be noted that if the functionality is implemented as a software module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0094] In this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations.

[0095] The above description is merely an embodiment of the present invention and is not intended to limit the scope of protection of the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic management method for molten iron ladle cars, characterized in that, An automatic management system for molten iron ladle cars is provided. The system includes a control platform, multiple molten iron ladle cars, multiple tracks, multiple first detection nodes spaced apart along the track direction, and oxen and locomotives located at opposite ends of the tracks. The method includes: Obtain the detection data of the molten iron ladle car detected by each of the first detection nodes, and combine the detection data of multiple first detection nodes to determine the target track of the molten iron ladle car in multiple tracks; The current stage of the molten iron ladle car is determined based on the detection data from multiple first detection nodes. When the molten iron ladle car is currently in the loading stage, the operation of the iron ox located at one end of the target track is controlled to push the molten iron ladle car on the target track to the iron outlet range on the target track.

2. The automatic management method for molten iron ladle cars according to claim 1, characterized in that, The plurality of first detection nodes include a laser rangefinder; The step of determining the target track of the molten iron ladle car among multiple tracks by combining the detection data of multiple first detection nodes includes: The distance values ​​of the molten iron ladle cars detected by the laser rangefinders in multiple first detection nodes are obtained, and the pre-stored reference distance values ​​between each track and the laser rangefinder are obtained. The distance value of the detected molten iron ladle car is compared with the reference distance value of each track, and the target track in which the molten iron ladle car is located is determined based on the comparison result.

3. The automatic management method for molten iron ladle cars according to claim 1, characterized in that, The plurality of tracks are arranged in parallel and spaced apart, and the plurality of first detection nodes are spaced apart along the length of the tracks; The step of determining the current stage of the molten iron ladle car based on detection data from multiple first detection nodes includes: For the same molten iron ladle car, obtain the detection time points when each of the first detection nodes detects the molten iron ladle car; The direction of movement of the molten iron ladle car is determined based on the setting position of each of the first detection nodes along the length of the track and the detection time point of each of the first detection nodes. The current stage of the molten iron ladle car is determined based on its direction of movement.

4. The automatic management method for molten iron ladle cars according to claim 1, characterized in that, The plurality of first detection nodes include radio frequency detectors, and each of the molten iron ladle cars is marked with a radio frequency tag; The detection data includes the molten iron ladle car number obtained by detecting the RFID tag through the RFID detector, the target track information of each molten iron ladle car, and the information of their numbers, which are then stored in the database in a stacked manner. The method further includes: When the molten iron ladle car is in the tapping stage, the number of the molten iron ladle car to be tapped and its track are extracted from the information stored in the database in a stacked manner. Upon receiving the molten iron ladle car's tapping start signal from the track where it is located, the initial weight of the molten iron ladle car is detected by a weighing device located within the tapping area of ​​the track. When the end signal of molten iron tapping is received from the track where the molten iron ladle car is located, the end weight of the molten iron ladle car is detected by the weighing device. The loading status of the molten iron ladle car is determined by combining the initial weight and the final weight, and the loading status of the molten iron ladle car is marked.

5. The automatic management method for molten iron ladle cars according to claim 4, characterized in that, The method further includes: (The multiple orbits are grouped into two sets of orbits.) For each track group, detect whether there are molten iron ladle cars with a half-loaded state on two tracks in the track group; If there are molten iron ladle cars that are half-loaded, then transfer the half-loaded molten iron ladle cars on the two tracks to the same track.

6. The automatic management method for molten iron ladle cars according to claim 4, characterized in that, The method further includes: When the molten iron ladle car is in the unloading stage, the number of the molten iron ladle car currently waiting to enter the unloading stage is extracted from the information stored in the database in a stack manner, and the track information associated with the number is obtained. The first detection node detects the number of the molten iron ladle car currently in the unloading stage and its track, and then verifies the saved number and track information based on the detected number and track information.

7. The automatic management method for molten iron ladle cars according to claim 6, characterized in that, The method further includes: Obtain the loading status of the molten iron ladle car that is about to enter the unloading stage; When the loading status is half-loaded, it is determined whether the first detection node detects the molten iron ladle car again within a preset time. If it is detected again, it is determined that the molten iron ladle car will perform the loading process again. If it is not detected again, the molten iron ladle car will be unloaded and the half-load unload information will be marked.

8. The automatic management method for molten iron ladle cars according to claim 1, characterized in that, The system also includes a second detection node, which is respectively set at one end of each track; The step of controlling the operation of the iron ox located at one end of the target track to push the molten iron ladle car on the target track to the range of the iron outlet on the target track includes: The operation of the iron ox located at one end of the target track is controlled, and the distance between the iron ox and the second detection node is obtained in real time through the second detection node during the control process; Based on the real-time detected distance, it is determined whether the molten iron ladle car on the target track has been pushed into the range of the iron outlet on the target track, and the number of molten iron ladle cars between the iron outlet range and the iron ox is determined.

9. The automatic management method for molten iron ladle cars according to any one of claims 1-8, characterized in that, The system further includes a display device, and the method further includes: The target track and current stage of each molten iron ladle car are sent to the display device so that the display device can display the target track and current stage of each molten iron ladle car through the display interface.

10. An automatic management system for molten iron ladle cars, characterized in that, The system includes a control platform, multiple molten iron ladle cars, multiple tracks, multiple first detection nodes spaced apart along the track direction, and iron oxen and locomotives located at both ends of the tracks respectively. Each of the first detection nodes is used to detect molten iron ladle cars and send the detection data of the detected molten iron ladle cars to the control platform; The control platform is used to determine the target track of the molten iron ladle car among multiple tracks by combining the detection data of multiple first detection nodes. The control platform is also used to determine the current stage of the molten iron ladle car based on the detection data from multiple first detection nodes. When the molten iron ladle car is currently in the ladle loading stage, the control platform is used to control the operation of the iron ox located at one end of the target track; The iron ox is used to push the molten iron ladle car on the target track to the iron outlet range on the target track under the control of the control platform.

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