A tank level detection and alarm system and method for a molten iron tank

Abstract

The present invention provides a tank position detection and alarm system and method for a molten iron tank, belonging to the technical field of smelting equipment. The system includes a molten iron tank and a molten iron tank track for the molten iron tank to travel. The system also includes a weighing sensor, which is installed below the molten iron tank track, a photoelectric switch, which is arranged in pairs on both sides of the molten iron tank track and arranged in a left-right opposing arrangement, and the photoelectric switch on the left side is symmetrically opposed to the photoelectric switch on the right side; a controller, the weighing sensor and the photoelectric switch are both connected to the controller; and an alarm, which is connected to the controller. The photoelectric switch can accurately detect the position of the molten iron tank to ensure that it is located directly below the iron outlet, reduce positioning errors, and reduce the need for manual operation and the risk of human error.

Description

Technical Field

[0001] The invention belongs to the technical field of smelting, and in particular relates to a tank level detection and alarm system and method for a molten iron tank. Background Art

[0002] In the daily production of steel mills, the safety of the transportation and transfer of molten iron as a high-temperature molten metal is of vital importance. The molten iron transportation process in steel mills is a complex and high-risk operation. At the critical moment of iron tapping in the blast furnace, the molten iron ladle needs to be accurately driven under the tapping hole so that the high-temperature molten iron can be safely poured into the predetermined mold or storage facility. In this process, any slight deviation may lead to serious consequences, including but not limited to molten iron overflow, damage to the molten iron ladle car or tapping hole, and even fire or explosion, resulting in casualties and huge economic losses.

[0003] In order to ensure that the position of the molten iron ladle car and the tap hole is accurately aligned, the traditional approach is to rely on manual inspection by operators. This process usually requires operators to visually observe whether the molten iron ladle car is facing the tap hole.

[0004] Although this method can reduce the risk of misalignment to a certain extent, the traditional method of aligning molten iron tanks requires collaborative operation by multiple people and relies on manual experience. Manual operation is easily affected by personal experience and fatigue, resulting in misjudgment, increased probability of error, and low reliability.

[0005] To this end, the present invention provides a tank level detection and alarm system and method for a molten iron tank. Summary of the invention

[0006] The present invention provides a tank position detection and alarm system and method for a molten iron tank, so as to at least solve the problem that the traditional method of molten iron tank position detection in the prior art requires collaborative operation of multiple people and relies on manual experience, and manual operation is easily affected by personal experience and fatigue, resulting in misjudgment, increased probability of error, and low reliability.

[0007] In a first aspect, an embodiment of the present application provides a tank position detection and alarm system for a molten iron tank, comprising a molten iron tank and a molten iron tank track for the molten iron tank to travel, and the system further comprises: A weighing sensor, wherein the weighing sensor is installed below the molten iron ladle track; Photoelectric switches, the photoelectric switches are arranged in pairs on both sides of the molten iron ladle track and arranged in left-right opposition, with the photoelectric switch on the left symmetrically opposing the photoelectric switch on the right; A controller, the weighing sensor and the photoelectric switch are both connected to the controller; An alarm is connected to the controller. The alarm is installed in a position that is easy for the operator to find, ensuring that the alarm signal emitted by the alarm can attract the operator's attention and the operator can find danger in time. The weighing sensor detects the weighing signal in real time. When the molten iron ladle travels onto the molten iron ladle track, the weighing sensor detects the weighing signal and transmits the detected weighing signal to the controller. When the controller receives the weighing signal, it sends a positioning detection signal to the photoelectric switch. After receiving the positioning detection signal, the photoelectric switch emits a light beam. When the light beam is blocked, the photoelectric switch generates a switch signal and transmits it to the controller. The controller determines that the position of the molten iron ladle is offset and controls the alarm to sound an alarm. When the light beam is not blocked, the photoelectric switch does not generate a switch signal, and the controller determines that the position of the molten iron ladle is not offset.

[0008] Furthermore, the controller is a PLC controller.

[0009] Furthermore, the photoelectric switch is a beam-type photoelectric switch. In this embodiment, according to the on-site environment, a high temperature resistant and dust resistant beam-type photoelectric switch is selected.

[0010] Furthermore, the alarm is an audible and visual alarm.

[0011] In a second aspect, the embodiments of the present application further provide a method for detecting and alarming a molten iron tank level in a molten iron tank applied to the molten iron tank level detection and alarm system as described in the above aspects, the method comprising: The weighing sensor is used to detect whether the molten iron tank is on the molten iron tank track, and then determine whether to send a positioning detection signal to the photoelectric switch; When the molten iron tank is detected to be on the molten iron tank track, the photoelectric switch is used to detect whether the position of the molten iron tank is offset; When it is detected that the position of the molten iron tank is offset, the alarm is controlled to sound an alarm.

[0012] Further, the weighing sensor is used to detect whether the molten iron tank is located on the molten iron tank track, and then it is determined whether to send a positioning detection signal to the photoelectric switch, including: When the weighing sensor detects that the molten iron tank has moved onto the molten iron tank track, it sends a positioning detection signal to the photoelectric switch; When the weighing sensor does not detect that the molten iron ladle has moved onto the molten iron ladle track, it will not take any action.

[0013] Further, when it is detected that the molten iron tank is located on the molten iron tank track, a photoelectric switch is used to detect whether the position of the molten iron tank is offset, including: The photoelectric switch emits a light beam after receiving a positioning detection signal; Whether the position of the molten iron ladle is offset can be determined by whether the light beam is blocked.

[0014] Further, judging whether the position of the molten iron ladle is offset by whether the light beam is blocked includes: When the light beam is blocked, the photoelectric switch generates a switch signal and transmits it to the controller, which determines that the position of the molten iron ladle is offset; When the light beam is not blocked, the photoelectric switch does not generate a switch signal, and the controller determines that the position of the molten iron ladle has not shifted.

[0015] It can be seen from the above technical solutions that the present invention has the following advantages: In the tank position detection and alarm system of the molten iron tank provided in the present application, a photoelectric switch is used to accurately detect the position of the molten iron tank, ensuring that it is located directly below the iron outlet, reducing positioning errors, and at the same time reducing the need for manual operation and the risk of human error.

[0016] The alarm can promptly remind operators to make adjustments to prevent safety accidents caused by the displacement of the molten iron ladle, reduce downtime caused by incorrect positioning of the molten iron ladle, and improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 The electrical principle block diagram of the tank position detection and alarm system of the molten iron tank of the present invention.

[0019] Figure 2 The figure is a schematic diagram of the installation position of the photoelectric switch of the tank position detection and alarm system of the molten iron tank of the present invention.

[0020] Figure 3 The present invention is a schematic diagram of the method flow of the method for detecting and alarming the tank position of the molten iron tank.

[0021] Figure numerals: 1- molten iron ladle track, 2- photoelectric switch. DETAILED DESCRIPTION

[0022] Various embodiments of the present disclosure will be described more fully in the following detailed description of the tank level detection and alarm system and method of the molten iron tank. The present disclosure may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present disclosure to the specific embodiments disclosed herein, but the present disclosure should be understood to cover all adjustments, equivalents and / or alternatives that fall within the spirit and scope of the various embodiments of the present disclosure.

[0023] Hereinafter, the terms "include" or "may include" used in various embodiments of the present disclosure indicate the presence of disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. In addition, as used in various embodiments of the present disclosure, the terms "include", "have", and their cognates are intended only to indicate specific features, numbers, steps, operations, elements, components, or a combination of the foregoing, and should not be understood as first excluding the presence of one or more other features, numbers, steps, operations, elements, components, or a combination of the foregoing or the possibility of adding one or more features, numbers, steps, operations, elements, components, or a combination of the foregoing.

[0024] In various embodiments of the present disclosure, the expression "or" or "at least one of A or / and B" includes any combination or all combinations of the words listed at the same time. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0025] The expressions (such as "first", "second", etc.) used in the various embodiments of the present disclosure may modify the various constituent elements in the various embodiments, but may not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present disclosure, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0026] It should be noted that if it is described that one component element is “connected” to another component element, the first component element may be directly connected to the second component element, and a third component element may be “connected” between the first component element and the second component element. Conversely, when one component element is “directly connected” to another component element, it can be understood that there is no third component element between the first component element and the second component element.

[0027] The term “user” used in various embodiments of the present disclosure may indicate a person who uses an electronic device, and may be a monitoring person, a test person, or an operator.

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The embodiments of the present application provide a tank position detection and alarm system and method for a molten iron tank, which solves the currently urgently needed technical problem that the traditional method of molten iron tank position detection requires collaborative operation of multiple people and relies on manual experience, and manual operation is easily affected by personal experience and fatigue, resulting in misjudgment, increased probability of error, and low reliability.

[0030] The technical solution proposed in the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0031] Figure 1 This is an electrical principle block diagram of a molten iron tank level detection and alarm system provided in an embodiment of the present application. Figure 1 As shown, an embodiment of the present application provides a tank position detection and alarm system for a molten iron tank, comprising a molten iron tank and a molten iron tank track 1 for the molten iron tank to travel on, the system also comprising a weighing sensor and a controller, the weighing sensor being installed below the molten iron tank track 1, and the weighing sensor being connected to the controller.

[0032] The system includes a photoelectric switch 2 and an alarm. The photoelectric switches 2 are arranged in pairs on both sides of the molten iron ladle track 1 and are arranged in a left-right opposing manner. The photoelectric switch 2 on the left side is symmetrically opposed to the photoelectric switch 2 on the right side.

[0033] The photoelectric switch 2 and the alarm are both connected to the controller. The alarm is installed in a position that is easily found by the operator to ensure that the alarm signal sent by the alarm can attract the attention of the operator and the operator can find the danger in time.

[0034] In the tank position detection and alarm system of the molten iron tank provided in the present application, a photoelectric switch is used to accurately detect the position of the molten iron tank, ensuring that it is located directly below the iron outlet, reducing positioning errors, and at the same time reducing the need for manual operation and the risk of human error.

[0035] The alarm can promptly remind operators to make adjustments to prevent safety accidents caused by the displacement of the molten iron ladle, reduce downtime caused by incorrect positioning of the molten iron ladle, and improve efficiency.

[0036] It should be noted that the photoelectric switch consists of a transmitter and a receiver. Its working principle is: the light emitted by the transmitter directly enters the receiver. When the molten iron tank being detected passes between the transmitter and the receiver to block the light, the photoelectric switch generates a switch signal.

[0037] It can be understood that the two sides of the molten iron ladle track 1 are the width direction of the molten iron ladle track 1 , and the two ends of the molten iron ladle track 1 are the length direction of the molten iron ladle track 1 .

[0038] Combination Figure 2In this embodiment, four photoelectric switches are required to form two measuring points. The light beams at these two measuring points are used to determine whether the position of the molten iron tank is offset. If both light beams in the two pairs of photoelectric switches are not blocked, it means that the position of the molten iron tank has not been offset. If any light beam in the two pairs of photoelectric switches is blocked, it means that the position of the molten iron tank has been offset, and the blocked photoelectric switch will generate a switch signal.

[0039] The weighing sensor detects the weighing signal in real time. When the molten iron ladle travels onto the molten iron ladle track 1, the weighing sensor detects the weighing signal and transmits the detected weighing signal to the controller. When the controller receives the weighing signal, it sends a positioning detection signal to the photoelectric switch. After receiving the positioning detection signal, the photoelectric switch emits a light beam. When the light beam is blocked, the photoelectric switch generates a switch signal and transmits it to the controller. The controller determines that the position of the molten iron ladle is offset and controls the alarm to sound an alarm. When the light beam is not blocked, the photoelectric switch does not generate a switch signal, and the controller determines that the position of the molten iron ladle is not offset.

[0040] In an exemplary embodiment, the controller is a PLC controller.

[0041] According to another embodiment of the present invention, the photoelectric switch is a beam photoelectric switch. In this embodiment, a high temperature resistant and dust resistant beam photoelectric switch is selected according to the site environment. The photoelectric switch suitable for high temperature and dust environment is selected to ensure that the system can work stably in harsh environments; high-quality equipment and materials increase the durability of the system and reduce maintenance requirements.

[0042] According to an embodiment of the present application, the alarm is an audible and visual alarm.

[0043] The following is an embodiment of the tank level detection and alarm method of the molten iron ladle provided in the embodiments of the present disclosure. The tank level detection and alarm method of the molten iron ladle and the tank level detection and alarm system of the molten iron ladle in the above-mentioned embodiments belong to the same inventive concept. For details not fully described in the embodiment of the tank level detection and alarm method of the molten iron ladle, reference can be made to the embodiment of the tank level detection and alarm system of the molten iron ladle.

[0044] The present invention also provides a method for detecting and alarming the position of a molten iron tank in the molten iron tank position detection and alarm system as described in the above embodiments, Figure 3 , the method comprising: The weighing sensor is used to detect whether the molten iron tank is on the molten iron tank track, and then determine whether to send a positioning detection signal to the photoelectric switch.

[0045] When it is detected that the molten iron ladle is on the molten iron ladle track, a photoelectric switch is used to detect whether the position of the molten iron ladle is offset.

[0046] When it is detected that the position of the molten iron tank is offset, the alarm is controlled to sound an alarm.

[0047] As an example, a weighing sensor is used to detect whether the molten iron tank is located on the molten iron tank track, and then a positioning detection signal is sent to the photoelectric switch, including: When the weighing sensor detects that the molten iron tank has moved onto the molten iron tank track, it sends a positioning detection signal to the photoelectric switch.

[0048] When the weighing sensor does not detect that the molten iron ladle has moved onto the molten iron ladle track, it will not take any action.

[0049] The weighing sensor detects the weighing signal in real time. When the molten iron ladle travels onto the molten iron ladle track, the weighing sensor detects the weighing signal and transmits the detected weighing signal to the controller. When the controller receives the weighing signal, it sends a positioning detection signal to the photoelectric switch.

[0050] Further, as a refinement and expansion of the specific implementation of the above embodiment, in order to fully illustrate the specific implementation process in this embodiment, another method for detecting and alarming the position of a molten iron tank is provided. When the molten iron tank is detected to be on the molten iron tank track, a photoelectric switch is used to detect whether the position of the molten iron tank is offset, including: The photoelectric switch emits a light beam after receiving a positioning detection signal; Whether the position of the molten iron ladle is offset can be determined by whether the light beam is blocked.

[0051] As an example, judging whether the position of the molten iron ladle is offset by determining whether the light beam is blocked includes: When the light beam is blocked, the photoelectric switch generates a switch signal and transmits it to the controller, which determines that the position of the molten iron ladle is offset.

[0052] When the light beam is not blocked, the photoelectric switch does not generate a switch signal, and the controller determines that the position of the molten iron ladle has not shifted.

[0053] It should be noted that the photoelectric switch consists of a transmitter and a receiver. Its working principle is: the light emitted by the transmitter directly enters the receiver. When the molten iron tank being detected passes between the transmitter and the receiver to block the light, the photoelectric switch generates a switch signal.

[0054] In this embodiment, four photoelectric switches are required to be used in conjunction to form two measuring points. The light beams at the two measuring points are used to determine whether the position of the molten iron tank is offset. If both light beams in the two pairs of photoelectric switches are not blocked, it means that the position of the molten iron tank has not been offset. If any light beam in the two pairs of photoelectric switches is blocked, it means that the position of the molten iron tank has been offset, and the blocked photoelectric switch will generate a switch signal.

[0055] After receiving the positioning detection signal, the photoelectric switch emits a light beam. When the light beam is blocked, the photoelectric switch generates a switch signal and transmits it to the controller. The controller determines that the position of the molten iron tank is offset and controls the alarm to sound an alarm. When the light beam is not blocked, the photoelectric switch does not generate a switch signal, and the controller determines that the position of the molten iron tank is not offset.

[0056] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0057] The flowchart and block diagram in the accompanying drawings illustrate the possible architecture, functions and operations of the equipment, methods and computer program products according to various embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. Exemplarily, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or the flowchart, and the combination of the boxes in the block diagram and / or the flowchart can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0058] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, or it can be an electrical, mechanical or other form of connection.

[0059] In addition, the described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present invention. However, those skilled in the art will appreciate that the technical solution of the present invention can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring various aspects of the present invention.

[0060] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0061] For those skilled in the art, designing different forms of control circuits according to the teachings of the present invention does not require creative work. These changes, modifications, substitutions and variations of the embodiments without departing from the principles and spirit of the present invention still fall within the scope of protection of the present invention.

Claims

1. A molten iron tank position detection and alarm system, comprising a molten iron tank and a molten iron tank track for the molten iron tank to travel, characterized in that: The system further comprises: A weighing sensor, wherein the weighing sensor is installed below the molten iron ladle track; Photoelectric switches, the photoelectric switches are arranged in pairs on both sides of the molten iron ladle track and arranged in left-right opposition, with the photoelectric switch on the left symmetrically opposing the photoelectric switch on the right; A controller, the weighing sensor and the photoelectric switch are both connected to the controller; An alarm is connected to the controller.

2. The molten iron tank level detection and alarm system according to claim 1, characterized in that: The controller is a PLC controller.

3. The molten iron tank level detection and alarm system according to claim 2, characterized in that: The photoelectric switch is a through-beam photoelectric switch.

4. The molten iron tank level detection and alarm system according to claim 1, characterized in that: The alarm is an audible and visual alarm.

5. A method for detecting and alarming the tank level of a molten iron tank based on the tank level detection and alarm system of the molten iron tank as claimed in any one of claims 1 to 4, characterized in that: The method comprises: The weighing sensor is used to detect whether the molten iron tank is on the molten iron tank track, and then determine whether to send a positioning detection signal to the photoelectric switch; When the molten iron tank is detected to be on the molten iron tank track, the photoelectric switch is used to detect whether the position of the molten iron tank is offset; When it is detected that the position of the molten iron tank is offset, the alarm is controlled to sound an alarm.

6. The method for detecting and alarming the level of a molten iron tank as claimed in claim 5, characterized in that: The weighing sensor is used to detect whether the molten iron tank is on the molten iron tank track, and then determine whether to send a positioning detection signal to the photoelectric switch, including: When the weighing sensor detects that the molten iron tank has moved onto the molten iron tank track, it sends a positioning detection signal to the photoelectric switch; When the weighing sensor does not detect that the molten iron ladle has moved onto the molten iron ladle track, it will not take any action.

7. The method for detecting and alarming the level of a molten iron tank as claimed in claim 6, characterized in that: When the molten iron ladle is detected on the molten iron ladle track, the photoelectric switch is used to detect whether the position of the molten iron ladle is offset, including: The photoelectric switch emits a light beam after receiving a positioning detection signal; Whether the position of the molten iron ladle is offset can be determined by whether the light beam is blocked.

8. The method for detecting and alarming the level of a molten iron tank as claimed in claim 5, characterized in that: Whether the position of the molten iron ladle is offset is determined by whether the light beam is blocked, including: When the light beam is blocked, the photoelectric switch generates a switch signal and transmits it to the controller, which determines that the position of the molten iron ladle is offset; When the light beam is not blocked, the photoelectric switch does not generate a switch signal, and the controller determines that the position of the molten iron ladle has not shifted.

Images