Method and system for transferring steelmaking furnace number based on ladle tracking technology

Abstract

The application discloses a steel ladle tracking technology-based steelmaking furnace number transmission method, which comprises the following steps: a steel ladle enters a position of a molten steel primary refining furnace, a secondary system releases a matching relationship between a current steel ladle number and a furnace number, and a matching relationship between the current steel ladle number and the furnace number of the molten steel primary refining furnace is established; when the steel ladle is lifted away from the position of the molten steel primary refining furnace, the current lifted steel ladle number and the matched furnace number are sent to a processing unit; when a crane lifts the steel ladle to a next position, the current steel ladle number and the matched furnace number are sent to a secondary system of the current position; when the steel ladle leaves the position of the current process, the current steel ladle number and the matched furnace number are sent to the processing unit, the processing unit stores the current steel ladle number and the matched furnace number reported by the secondary system, and the above steps are repeated until the steel plate completes a current round of turnover. After the steel ladle is replaced during the molten steel smelting process, the matched furnace number of the replaced steel ladle number must be corrected under manual intervention, and then the secondary system can declare a production plan, so that the accuracy of the furnace number transmission in various processes is greatly improved.

Description

Technical Field

[0001] This invention belongs to the technical field of the metallurgical industry. More specifically, this invention relates to a method and system for transmitting steelmaking furnace numbers based on ladle tracking technology. Background Technology

[0002] The secondary system of the primary steelmaking process (such as the converter process) matches the furnace number with the ladle number. When the molten steel is transferred to the workstation of other processes, the primary system determines which workstation the molten steel should enter by judging the ladle position. The furnace number carried by the steel number is automatically transmitted to the secondary system of the workstation, thereby realizing the transfer of the furnace number between processes.

[0003] After the molten steel is poured into the ladle, the overhead crane moves the ladle away from the continuous casting platform to the hot repair station. The empty ladle is then used for hot repair and will be reassigned a new furnace number when it enters the primary steelmaking process again, thus realizing the update of the furnace number.

[0004] Since the ladle number carries the furnace number and is matched in the secondary system of the primary steelmaking process, when encountering complex ladle transfer situations during production, such as changing ladles during the steelmaking process (LF process and RH process), it will cause the furnace number and ladle number to be mismatched. Summary of the Invention

[0005] This invention provides a method for transmitting steelmaking furnace numbers based on ladle tracking technology, aiming to improve the above-mentioned problems.

[0006] This invention is implemented as follows: a method for transmitting steelmaking furnace numbers based on ladle tracking technology, the method being as follows:

[0007] (1) When an empty ladle enters the primary steel refining furnace, the ladle number of the current ladle is de-matched with the furnace number in the secondary system of the primary steel refining process, and the matching relationship between the ladle number of the ladle and the current furnace number of the primary steel refining furnace is established.

[0008] (2) When the ladle is lifted away from the primary steel refining furnace, the secondary system of the primary steel refining process sends the ladle number and its matching furnace number to the processing unit.

[0009] (3) When the overhead crane lifts the ladle to the next work station on the process path, the processing unit sends the ladle number of the current ladle and its matching furnace number to the secondary system of the current process.

[0010] (4) When the ladle leaves the current process station, the secondary system sends the ladle number and its matching furnace number of the current ladle to the processing unit. The processing unit checks whether the currently stored ladle number and its matching furnace number are consistent with those currently reported by the secondary system. If they are inconsistent, the processing unit stores the ladle number and its matching furnace number of the current ladle reported by the secondary system and executes step (3) until the ladle completes the current cycle.

[0011] Furthermore, the normal operation of the ladle starts from the primary steel refining furnace and ends with the hot repair. After the hot repair, it returns to the primary steel refining furnace. After the hot repair of the ladle is completed, a hot repair mark is added to the ladle information of the corresponding ladle in the processing unit.

[0012] For non-molten steel primary refining processes in the ladle's process path, production plans for the corresponding processes are not announced based on the hot repair indicator.

[0013] Furthermore, if the ladle enters the next round of turnover after hot repair, and if the first process in the next round of turnover is not a primary steelmaking process, when the overhead crane lifts the ladle to the corresponding process station, the secondary system of the corresponding process checks whether there is a hot repair mark in the ladle information of the current ladle. If there is, after receiving the new furnace number matched with the ladle number of the current ladle, the secondary system announces the production plan of the process, and the hot repair mark in the ladle information of the corresponding ladle in the processing unit is deleted. If there is no hot repair mark, the production plan of the process is announced directly.

[0014] Furthermore, if the first process in the next cycle is the primary steelmaking process, when the ladle is moved to the primary steelmaking furnace, the corresponding secondary system will directly remove the hot repair mark from the ladle information and execute step (1) when it detects that there is a hot repair mark in the ladle information.

[0015] Furthermore, the furnace number is the ID number of the molten steel, and each furnace of molten steel corresponds to a furnace number.

[0016] Furthermore, if the processing unit detects that the currently stored ladle number and its matching furnace number are consistent with those currently reported by the secondary system, it will not update the currently stored ladle number and its matching furnace number.

[0017] This invention is implemented as follows: a steelmaking furnace number transmission system based on ladle tracking technology, the system comprising:

[0018] A secondary system is used to control each process, with one secondary system corresponding to each process;

[0019] All secondary systems are communicatively connected to the processing unit;

[0020] The secondary system and processing unit transmit the furnace number of the molten steel in the ladle based on the ladle tracking technology described above.

[0021] Furthermore, the processing unit is integrated onto the overhead crane.

[0022] Furthermore, the processing unit integrates a storage unit for storing the ladle number of each ladle and its matching furnace number.

[0023] The steelmaking furnace number transmission method based on ladle tracking technology provided by this invention requires manual intervention to correct the furnace number matching the ladle number after changing ladles in processes such as steel smelting (LF process and RH process) before the corresponding secondary system will announce the production plan, which greatly improves the accuracy of furnace number transmission in various processes. Attached Figure Description

[0024] Figure 1 A flowchart of a steelmaking furnace number transmission method based on ladle tracking technology provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of a steelmaking furnace number transmission system based on ladle tracking technology provided in an embodiment of the present invention;

[0026] Figure 3 This is an example diagram of the normal process path around the ladle provided in an embodiment of the present invention. Detailed Implementation

[0027] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0028] In this embodiment of the invention, the process path of the ladle starts at a general primary steelmaking furnace and ends at a hot repair process. The primary steelmaking furnace is generally a converter or electric furnace. After casting, an overhead crane lifts the empty ladle from the continuous casting station to the hot repair station. After hot repair, the ladle is generally lifted again to the converter station to await receiving molten steel. For ease of description, the process path of converter process → LF process → RH process → continuous casting process → hot repair process → converter process is used as an example to illustrate the operation of the ladle. Figure 3 As shown, the details are as follows:

[0029] Empty ladles are hoisted by overhead cranes into the converter / electric furnace station to await molten steel tapping. After the converter / electric furnace pours the molten steel into the empty ladle, the ladle filled with molten steel is hoisted by overhead cranes from the converter station to the LF station for smelting. After LF smelting, the ladle is hoisted by overhead cranes to the RH station for smelting. After RH smelting, the ladle is hoisted by overhead cranes to the continuous casting station for molten steel pouring. After molten steel pouring, the empty ladle is hoisted from the continuous casting station to the hot repair station. After hot repair cleaning, and after some processing, the cleaned empty ladle is returned to the converter station.

[0030] Figure 1 The flowchart of the steelmaking furnace number transmission method based on ladle tracking technology provided in this embodiment of the invention is as follows:

[0031] (1) When an empty ladle enters the primary steel refining furnace, the ladle number of the current ladle is de-matched with the furnace number in the secondary system of the primary steel refining process, and the matching relationship between the ladle number of the current ladle and the current furnace number of the primary steel refining furnace is established.

[0032] The furnace number is the ID number of the molten steel. It is an index of the production information of each furnace of molten steel. By searching for the furnace number in the production system, all the production information of that furnace of molten steel can be obtained. In other words, the production information generated by the furnace number of the same furnace of molten steel in each process should be the same.

[0033] (2) When the ladle leaves the station of the primary steel refining process, the secondary system of the primary steel refining process sends the ladle number and its matching furnace number to the processing unit.

[0034] (3) When the overhead crane lifts the ladle to the next work station on the process path, the processing unit sends the ladle number of the current ladle and its matching furnace number to the secondary system of the current process.

[0035] (4) When the ladle leaves the current process station, the secondary system sends the ladle number and its matching furnace number of the current ladle to the processing unit. The processing unit checks whether the currently stored ladle number and its matching furnace number are consistent with those currently reported by the secondary system. If they are inconsistent, the processing unit stores the ladle number and its matching furnace number of the current ladle reported by the secondary system and executes step (3) until the ladle completes the current cycle.

[0036] The operation of a ladle typically begins in the primary smelting furnace and ends after hot repair, returning to the primary smelting furnace. During this process, the secondary system of the primary smelting process establishes a matching relationship between the ladle number and the furnace number, and clears the matching furnace number. However, in actual production, there are situations where a ladle, after hot repair, is used in a non-primary smelting process, such as when molten steel is transferred. If ladle A, currently in the LF process, malfunctions, the molten steel in ladle A needs to be poured into an empty ladle B that has already undergone hot repair, allowing ladle B to replace ladle A and complete the smelting task. In this case, because ladle B is directly used in the LF process after hot repair, it skips the converter process. The furnace number matching the ladle number is not cleared, and the furnace number of the already poured molten steel is carried into the current cycle, leading to an error between the ladle number and its matching furnace number. To improve this problem, the ladle tracking technology's furnace number transmission method also includes the following steps:

[0037] After the ladle hot repair is completed, a hot repair mark is added to the ladle information of the corresponding ladle in the processing unit, and the ladle enters the next round of turnover.

[0038] When the ladle enters the first process in the next cycle of turnover, if the first process in the next cycle of turnover is not the primary steel refining process, when the overhead crane lifts the ladle to the corresponding process station, the secondary system of the corresponding process checks whether there is a hot repair mark in the ladle information of the current ladle. If there is, after receiving the new furnace number matched with the ladle number of the current ladle, the secondary system announces the production plan of the process, and the hot repair mark in the ladle information of the corresponding ladle in the processing unit is deleted. If there is no hot repair mark, the production plan of the process is announced directly.

[0039] If the first process in the next cycle is the primary steel refining process, when the ladle is moved to the primary steel refining furnace, the corresponding secondary system will directly remove the hot repair mark from the ladle information and execute step (1) when it detects that there is a hot repair mark in the ladle information.

[0040] Adding a hot-repair mark to the information of a hot-repaired ladle prevents the secondary system at the workstation containing the hot-repair mark from automatically starting the smelting plan. This prevents the generation of an entry record in the secondary system, avoiding redundant information caused by temporary ladle placement or cross-transportation. If a ladle with a hot-repair mark requires smelting, the furnace number on the ladle will not match the actual furnace number. Therefore, the furnace number must be manually confirmed and corrected before the corresponding secondary system announces the production plan, ensuring the correct furnace number is transmitted and avoiding incorrect matching between furnace number and molten steel. Ladles without a hot-repair mark can automatically announce the production plan upon arrival at the workstation, reducing manual operation.

[0041] Figure 2This is a schematic diagram of a steelmaking furnace number transmission system based on ladle tracking technology provided in an embodiment of the present invention. For ease of explanation, the system includes the parts relevant to the embodiment of the present invention.

[0042] A secondary system is used to control each process, with one secondary system corresponding to each process;

[0043] All secondary systems are communicatively connected to the processing unit;

[0044] The secondary system and processing unit transmit the furnace number of the molten steel in the ladle based on the above-mentioned ladle tracking technology.

[0045] In this embodiment of the invention, the processing unit includes a storage unit for storing the furnace number matching the ladle number, and the processing unit is integrated on the overhead crane.

[0046] The following explains the relevant technical terms: Secondary System: The secondary system of each process collects and organizes the production information of each furnace batch from the primary system, and matches the organized production information with the furnace number; Secondary System Announces Production Plan: This refers to the secondary system of the corresponding process receiving the furnace number, matching the production data of the current furnace number in the current process, and recording it; Ladle Tracking Technology: This is an existing technology, implemented in various ways, such as laser ranging positioning or PLC grid positioning, which can display the ladle's position in real time. It determines which workstation the ladle has entered and can also determine which ladle is being lifted based on its position.

[0047] The present invention has been described by way of example. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A method for transmitting steelmaking furnace numbers based on ladle tracking technology, characterized in that, The method is as follows: (1) When an empty ladle enters the primary steel refining furnace, the ladle number of the current ladle is de-matched with the furnace number in the secondary system of the primary steel refining process, and the matching relationship between the ladle number of the ladle and the current furnace number of the primary steel refining furnace is established. (2) When the ladle is lifted away from the primary steel refining furnace, the secondary system of the primary steel refining process sends the ladle number and its matching furnace number to the processing unit. (3) When the overhead crane lifts the ladle to the next work station on the process path, the processing unit sends the ladle number of the current ladle and its matching furnace number to the secondary system of the current process. (4) When the ladle leaves the current process station, the secondary system sends the ladle number and its matching furnace number of the current ladle to the processing unit. The processing unit checks whether the currently stored ladle number and its matching furnace number are consistent with those currently reported by the secondary system. If they are inconsistent, the processing unit stores the ladle number and its matching furnace number of the current ladle reported by the secondary system and executes step (3) until the ladle completes the current cycle.

2. The method for transmitting steelmaking furnace numbers based on ladle tracking technology as described in claim 1, characterized in that, The normal operation of the ladle starts from the primary steel refining furnace and ends with the hot repair. After the hot repair, it returns to the primary steel refining furnace. After the hot repair of the ladle is completed, a hot repair mark is added to the ladle information of the corresponding ladle in the processing unit. For non-molten steel primary refining processes in the ladle's process path, production plans for the corresponding processes are not announced based on the hot repair indicator.

3. The method for transmitting steelmaking furnace numbers based on ladle tracking technology as described in claim 2, characterized in that, If the ladle enters the next round of turnover after hot repair, and the first process in the next round of turnover is not a primary steelmaking process, when the overhead crane lifts the ladle to the corresponding process station, the secondary system of the corresponding process checks whether there is a hot repair mark in the ladle information of the current ladle. If there is, after receiving the new furnace number matched with the ladle number of the current ladle, the secondary system announces the production plan of the process, and the hot repair mark in the ladle information of the corresponding ladle in the processing unit is deleted. If there is no hot repair mark, the production plan of the process is announced directly.

4. The method for transmitting the steelmaking furnace number based on ladle tracking technology as described in claim 3, characterized in that, If the first process in the next cycle is the primary steel refining process, when the ladle is moved to the primary steel refining furnace, the corresponding secondary system will directly remove the hot repair mark from the ladle information and execute step (1) when it detects that there is a hot repair mark in the ladle information.

5. The method for transmitting steelmaking furnace numbers based on ladle tracking technology as described in claim 1, characterized in that, The furnace number is the ID number of the molten steel, and each furnace of molten steel corresponds to a furnace number.

6. The method for transmitting steelmaking furnace numbers based on ladle tracking technology as described in claim 1, characterized in that, If the processing unit detects that the currently stored ladle number and its matching furnace number are consistent with those currently reported by the secondary system, it will not update the currently stored ladle number and its matching furnace number.

7. A steelmaking furnace number transmission system based on ladle tracking technology, characterized in that, The system includes: A secondary system is used to control each process, with one secondary system corresponding to each process; All secondary systems are communicatively connected to the processing unit; The secondary system and processing unit transmit the furnace number of the molten steel in the current ladle based on the ladle tracking technology transmission method described in any one of claims 1 to 6.

8. The steelmaking furnace number transmission system based on ladle tracking technology as described in claim 7, characterized in that, The processing unit is integrated on the overhead crane.

9. The steelmaking furnace number transmission system based on ladle tracking technology as described in claim 7, characterized in that, The processing unit integrates a storage unit for storing the ladle number of each ladle and its matching furnace number.

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