System and method for preventing ladle leakage of hot metal ladle
By using the thermal imaging camera group to automatically obtain temperature data and alert the iron bag during the transportation of the molten iron bag, the problem of leakage of molten iron bag caused by ultra-high temperature is solved, and production safety is improved and real-time online detection is realized.
Patent Information
- Application Number
- CN202510002729.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-04-04
AI Technical Summary
During the transportation of iron bags in steel mills, the temperature is too high, and the iron bags may be smashed and leaked after scrap steel is put into use, causing the iron to leak, damage the equipment and threaten the personal and equipment safety.
A system for preventing leaks of molten iron bags is designed, and the thermal imaging camera group is used to automatically obtain the temperature data of molten iron bags, determine whether there is a super high temperature, and promptly alert the staff to check through the alarm recording module.
By automatically obtaining the temperature data of the molten iron bag and alarm reminder, it effectively prevents the leakage of the molten iron bag due to the extremely high temperature, improves production safety, reduces the probability of production accidents, and realizes real-time online detection of 360 degrees.
Smart Images
Figure CN119747604A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a system and method for preventing a molten iron ladle from leaking, and belongs to the technical field of safe production in the metallurgical industry. Background Art
[0002] The function of the hot metal ladle in the steel mill is to hold liquid hot metal, receive hot metal from the blast furnace, and then transport it to the steel mill. Through the cooperation of two PLC-controlled overhead cranes (overhead crane 1 and overhead crane 2), the hot metal in the hot metal ladle is poured into the steelmaking furnace. At present, steel enterprises use the process of putting scrap steel into the hot metal ladle during the transportation of the hot metal ladle by two overhead cranes. If the temperature of the hot metal ladle is too high, the scrap steel may cause the hot metal ladle to be smashed and leaked after being put in, resulting in the leakage of hot metal, burning equipment, and even causing serious production accidents, which restricts the stable and smooth production and seriously threatens the safety of people and equipment. Summary of the invention
[0003] The purpose of the present invention is to provide a system and method for preventing leakage of a molten iron ladle. When the molten iron ladle is hoisted by an overhead crane, the temperature data of the molten iron ladle is automatically obtained to determine whether the temperature is too high. If the temperature is too high, an alarm is issued in time to remind the workers on duty to check, which is conducive to ensuring production safety, reducing the probability of production accidents, ensuring production rhythm, and solving the above-mentioned technical problems existing in the existing technology.
[0004] The technical solution of the present invention is: A system for preventing ladle leakage comprises a thermal imaging camera group, a computing power computer, a crane PLC 1, a crane PLC 2 and an alarm recording module. The thermal imaging camera group comprises a plurality of thermal imaging cameras, and the plurality of thermal imaging cameras are installed around a detection point. When the crane 1 or the crane 2 hoists the ladle through the detection point, the computing power computer reads the data of the crane PLC 1 and the crane PLC 2. When the crane 1 or the crane 2 hoists the ladle through the thermal imaging camera group, the computing power computer reads the temperature data matrix of the thermal imaging camera group, determines the location of the ladle from the temperature data matrix, determines whether the temperature of any area of the ladle exceeds a safety temperature threshold, and determines the location of the area where the temperature exceeds the safety temperature threshold at the ladle. The computing power computer records and sends an alarm through the alarm recording module, and the alarm prompts that the temperature of the area is too high, and records the alarm text.
[0005] The thermal imaging camera group includes three thermal imaging cameras, which are installed in the form of an equilateral triangle around a detection point. The detection point is the center of the thermal imaging camera group. The thermal imaging camera has an elevation angle of 30 degrees and faces the direction of the centroid of the equilateral triangle. When a molten iron ladle is hoisted by crane one or crane two and passes above the centroid of the equilateral triangle, the molten iron ladle passes through the center of the screen of the three thermal imaging cameras.
[0006] In order to save computing power and improve system stability, the computing power computer reads the data of the trolley position, trolley position, main hook height, main hook weight and the number of the hoisted molten iron ladle in the crane 1 PLC and crane 2 PLC to determine whether there is an iron ladle hoisted by the crane passing through the center of the thermal imaging camera group.
[0007] When the molten iron ladle passes through the center of the thermal imaging camera group, the temperature data matrix of the three thermal imaging cameras of the thermal imaging camera group is read, and the location of the molten iron ladle is determined according to the size of each temperature data in the temperature data matrix, and it is determined whether there is an area at that location with a temperature exceeding the safe temperature threshold.
[0008] A method for preventing a ladle from leaking uses the above system, and the steps are as follows: reading data from a crane PLC 1 or a crane PLC 2 to determine whether the ladle has reached a detection point; if the determination is no, continue waiting; if the determination is yes, read a temperature data matrix of a thermal imaging camera group to calculate the location of the ladle, and determine whether any area of the ladle exceeds a safety temperature threshold; if the determination is no, end; if the determination is yes, issue an alarm message.
[0009] The beneficial effects of the present invention are as follows: when the molten iron ladle is hoisted by an overhead crane, the temperature data of the molten iron ladle is automatically obtained to determine whether the temperature is too high. If the temperature is too high, an alarm is triggered in time to remind the workers on duty to conduct inspections, which is beneficial to ensuring production safety, reducing the probability of production accidents, and ensuring the production rhythm. The investment cost is low, the temperature data of the molten iron ladle can be measured 360 degrees, and real-time online detection is realized at the same time, reducing the situation where the molten iron ladle is smashed and leaked by scrap steel due to the excessively high temperature. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a system diagram of an embodiment of the present invention; Figure 2 This is a distribution diagram of thermal imaging cameras according to an embodiment of the present invention; Figure 3 is a flow chart of an embodiment of the present invention; In the figure: thermal imaging camera group 1, computing computer 2, overhead crane 1 PLC 3, overhead crane 2 PLC 4, molten iron ladle 6, thermal imaging camera 7. DETAILED DESCRIPTION
[0011] The present invention will be further described below by way of embodiments in conjunction with the accompanying drawings.
[0012] A system for preventing ladle leakage comprises a thermal imaging camera group 1, a computing power computer 2, a crane PLC 3, a crane PLC 4 and an alarm recording module, wherein the thermal imaging camera group 1 comprises a plurality of thermal imaging cameras, wherein the plurality of thermal imaging cameras 7 are installed around a detection point, and when the crane 1 or the crane 2 hoists a ladle 6 to pass through the detection point, the computing power computer 2 reads the data of the crane PLC 3 and the crane PLC 4, and when the crane 1 or the crane 2 hoists a ladle to pass through the thermal imaging camera group 1, the computing power computer 2 reads the temperature data matrix of the thermal imaging camera group 1, and determines the location of the ladle from the temperature data matrix, and determines whether the temperature of any area of the ladle exceeds a safety temperature threshold, and determines the location of the area where the temperature exceeds the safety temperature threshold at the ladle, and the computing power computer 2 records and sends an alarm through the alarm recording module, and the alarm prompts that the temperature of the area is too high, and records the alarm text.
[0013] The thermal imaging camera group 1 includes three thermal imaging cameras 7, which are installed in the form of an equilateral triangle around a detection point. The detection point is the center of the thermal imaging camera group. The thermal imaging camera 7 is at an elevation angle of 30 degrees and faces the center of mass of the equilateral triangle. When a molten iron ladle is hoisted by the first or second crane and passes above the center of mass of the equilateral triangle, the molten iron ladle passes through the center of the screen of the three thermal imaging cameras.
[0014] In order to save computing power and improve system stability, the computing power computer reads the data of the trolley position, trolley position, main hook height, main hook weight and the number of the hoisted molten iron ladle in the crane 1 PLC3 and crane 2 PLC4 to determine whether there is an iron ladle hoisted by the crane passing through the center of the thermal imaging camera group.
[0015] When the molten iron ladle passes through the center of the thermal imaging camera group, the temperature data matrix of the three thermal imaging cameras of the thermal imaging camera group 1 is read, and the position of the molten iron ladle is determined according to the size of each temperature data in the temperature data matrix, and it is determined whether there is an area at that location with a temperature exceeding the safe temperature threshold.
[0016] In the embodiment, in combination with the accompanying drawings, the thermal imaging camera group 1 includes three thermal imaging cameras 7, and the three thermal imaging cameras are installed in the form of an equilateral triangle around the detection point. The detection point is the center of the thermal imaging camera group. The thermal imaging camera 7 is at an elevation angle of 30 degrees, facing the centroid direction of the equilateral triangle, and the temperature threshold of the molten iron ladle and the safety temperature threshold are set. When the molten iron ladle passes through the specified position, the temperature data matrix of the three thermal imaging cameras of the thermal imaging camera group is read, and the position of the molten iron ladle is determined according to the temperature data of each element in the temperature data matrix and the temperature threshold of the molten iron ladle. Then, according to the temperature data of each element at the position of the molten iron ladle and the safety temperature threshold, it is determined whether there is an area of the molten iron ladle that exceeds the safety temperature threshold. If so, an alarm is issued to prompt that the temperature of the part of the molten iron ladle is too high, and the alarm text is recorded.
[0017] A method for preventing a molten iron ladle from leaking uses the above system, and specifically comprises the following steps: reading data from overhead crane 1 PLC3 or overhead crane 2 PLC4 to determine whether the molten iron ladle has reached a detection point; if the determination is no, continue to wait; if the determination is yes, read the temperature data matrix of a thermal imaging camera group, calculate the location of the molten iron ladle, and determine whether any area of the molten iron ladle exceeds a safety temperature threshold; if the determination is no, end; if the determination is yes, issue an alarm message.
Claims
1. A system for preventing ladle leakage, characterized in that: The invention comprises a thermal imaging camera group (1), a computing power computer (2), a crane 1 PLC (3), a crane 2 PLC (4) and an alarm recording module. The thermal imaging camera group (1) comprises a plurality of thermal imaging cameras. The plurality of thermal imaging cameras (7) are installed around a detection point. When a molten iron ladle (6) is hoisted by the crane 1 or the crane 2 and passes through the detection point, the computing power computer (2) reads data from the crane 1 PLC (3) and the crane 2 PLC (4). When a molten iron ladle is hoisted by the crane 1 or the crane 2 and passes through the thermal imaging camera group (1), the computing power computer (2) reads the temperature data matrix of the thermal imaging camera group (1), determines the location of the molten iron ladle from the temperature data matrix, determines whether the temperature of the molten iron ladle exceeds a safety temperature threshold, and determines the location of the molten iron ladle where the temperature exceeds the safety temperature threshold. The computing power computer (2) records and issues an alarm through the alarm recording module. The alarm prompts that the temperature of the area is too high and records the alarm text.
2. A system for preventing ladle leakage according to claim 1, characterized in that: The thermal imaging camera group (1) comprises three thermal imaging cameras (7), which are installed in the form of an equilateral triangle around a detection point. The detection point is the center of the thermal imaging camera group. The thermal imaging camera (7) has an elevation angle of 30 degrees and faces the direction of the centroid of the equilateral triangle. When a molten iron ladle is hoisted by the first or second overhead crane and passes above the centroid of the equilateral triangle, the molten iron ladle passes through the center of the screen of the three thermal imaging cameras.
3. A system for preventing ladle leakage according to claim 2, characterized in that: The computing computer reads the data of the trolley position, the trolley position, the main hook height, the main hook weight and the number of the suspended ladle in the crane 1 PLC (3) and the crane 2 PLC (4), and determines whether there is a ladle suspended by the crane passing through the center of the thermal imaging camera group.
4. A system for preventing ladle leakage according to claim 3, characterized in that: When the molten iron ladle passes through the center of the thermal imaging camera group, the temperature data matrix of the three thermal imaging cameras of the thermal imaging camera group (1) is read, and the location of the molten iron ladle is determined according to the size of each temperature data in the temperature data matrix, and it is determined whether there is an area at the location with a temperature exceeding the safe temperature threshold.
5. A method for preventing a ladle from leaking, using the system for preventing a ladle from leaking as claimed in any one of claims 1 to 4, characterized in that The steps are as follows: read the data of the overhead crane 1 PLC (3) or the overhead crane 2 PLC (4), determine whether the molten iron ladle has reached the detection point, and if it is determined to be no, continue to wait; if it is determined to be yes, read the temperature data matrix of the thermal imaging camera group, calculate the location of the molten iron ladle, and determine whether there is an area of the molten iron ladle that exceeds the safety temperature threshold; If the judgment is no, end; If the judgment is yes, an alarm message is issued.