Annular annealing furnace inner cover in-furnace height detection device and annular annealing furnace

Abstract

The utility model discloses an in-furnace height detection device for an inner cover of an annular annealing furnace and the annular annealing furnace. The in-furnace height detection device comprises a laser emitting element, a laser receiving plate, a height detector, a height confirmation device, an audible and visual alarm and a processor, the laser emitting element is mounted on the outer side of an open area of the annealing furnace; the laser receiving plate is mounted on the inner side of the open area of the annealing furnace and is used for receiving and displaying the laser rays emitted by the laser emitter; the height detector is connected with the laser emitting element and is used for controlling the laser emitting element to emit laser for a preset time; the height confirmation device is connected with the processor, and the height confirmation device is used for sending a confirmation signal to the processor after the state of the laser rays on the laser receiving plate is normal; and the audible and visual alarm is connected with the processor and is used for sending out an audio-visual alarm. The device is convenient for field operation, can realize visual detection of the height of the inner cover before entering the furnace, has an alarm reminding function when the height is not confirmed, and avoids operation risks caused by entering of the inner cover with abnormal height into the furnace.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical automation, in particular to a device for detecting the height of an inner cover of an annular annealing furnace and the annular annealing furnace. Background Art

[0002] The annular annealing furnace rotates according to the process setting cycle. Two steel coils are put into the furnace for each rotation. The inner cover must be fastened in the open area before the steel coils are put into the furnace. After entering the furnace, protective gases such as nitrogen and hydrogen are introduced into the inner cover. The steel coils with the inner cover fastened enter the furnace from the A door of the furnace, pass through the B door and the C door in turn, and finally exit the furnace. The height at which the furnace door opens during rotation is fixed. At the same time, a large number of cooling air ducts are installed on the top of the cooling section of the furnace. If the inner cover is not fastened properly in the open area and the height of the inner cover is too high, then the inner cover may scrape against the furnace door, cooling air duct and other equipment when or after entering the furnace, causing the inner cover to tilt or even fall, seriously affecting the operation of the unit.

[0003] In the existing technology, the inner cover height detection device is a mechanical height limit rod. Due to the limitation of the overhead crane activity area in the open area, the mechanical height limit rod can only be installed in the area close to door A. When the inner cover passes under the height limit rod and the height is abnormal, it will be very difficult to re-lift the inner cover in this area. Summary of the Invention

[0004] The embodiment of the present application provides an annular annealing furnace inner cover entry height detection device and an annular annealing furnace, which facilitates on-site operations while ensuring the safety of the inner cover entering the furnace.

[0005] In a first aspect, the present application provides a device for detecting the height of an inner cover of an annular annealing furnace, comprising:

[0006] Laser emitting element, laser receiving board, height detector, height confirmer, sound and light alarm and processor;

[0007] The laser emitting element is installed outside the open area of ​​the annealing furnace; the laser receiving board is installed inside the open area of ​​the annealing furnace, and is used to receive and display the laser line emitted by the laser emitter; the height detector is connected to the laser emitting element, and is used to control the laser emitting element to emit laser light and continue to emit laser light for a preset time;

[0008] The height confirmer is connected to the processor, and is used to send a confirmation signal to the processor after the laser line state on the laser receiving board is normal; the sound and light alarm is connected to the processor, and is used to issue an audio-visual alarm.

[0009] Optionally, the laser emitting element is a line laser emitter, which is used to emit a horizontal laser line toward the laser receiving board.

[0010] Optionally, the installation height of the laser emitting element is the same as the installation height of the laser receiving board.

[0011] Optionally, the installation height of the laser emitting element and the installation height of the laser receiving plate are both less than the lowest height of the equipment in the annealing furnace.

[0012] Optionally, the processor is a PLC processor.

[0013] Optionally, the processor is configured to:

[0014] The laser emitting element emits a horizontal laser line passing through the top of the inner cover of the steel coil. If the height of the inner cover is less than a preset height, the height confirmer sends a confirmation signal to the processor;

[0015] If the height of the inner cover is greater than or equal to the preset height, the height confirmer does not send a confirmation signal to the processor, and the processor sends an alarm signal to the sound and light alarm before the trolley rotates.

[0016] Optionally, the sound and light alarm includes a sound generator and a light emitter, which are used to issue an audiovisual alarm based on the received alarm signal.

[0017] In a second aspect, the present application provides an annular annealing furnace, comprising the aforementioned annular annealing furnace inner cover entry height detection device.

[0018] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0019] The utility model discloses a device for detecting the height of an inner cover entering an annular annealing furnace and an annular annealing furnace, comprising a laser emitting element, a laser receiving board, a height detector, a height confirmer, an audible and visual alarm, and a processor; the laser emitting element is mounted outside the open area of ​​the annealing furnace; the laser receiving board is mounted inside the open area of ​​the annealing furnace and is used to receive and display the laser line emitted by the laser emitter; the height detector is connected to the laser emitting element and is used to control the laser emitting element to emit laser light and to continue emitting laser light for a preset time; the height confirmer is connected to the processor and is used to send a confirmation signal to the processor after the laser line state on the laser receiving board is normal; the audible and visual alarm is connected to the processor and is used to issue an audible and visual alarm. The device is convenient for on-site operation and can realize visual detection of the height of the inner cover before entering the furnace. At the same time, it has an alarm reminder for unconfirmed height, thereby avoiding the operational risks caused by the inner cover entering the furnace at an abnormal height.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. Throughout the accompanying drawings, the same reference figures denote the same components. In the accompanying drawings:

[0022] Figure 1 This is a structural schematic diagram of a device for detecting the height of a cover entering a ring annealing furnace in an embodiment of the present invention;

[0023] Legend: Laser emitting element-1, laser receiving board-2, height detector-3, height confirmer-4, processor-5, sound and light alarm-6, A door-7. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0027] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "install", "connect", and "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Combined with Figure 1 As shown, this embodiment provides a device for detecting the furnace inlet height of the inner cover of an annular annealing furnace, including: a laser emitting element 1, a laser receiving plate 2, a height detector 3, a height confirmator 4, an acoustic-optic alarm 6, and a processor 5.

[0029] Among them, the height detector 3 is connected to the laser emitter, and the processor 5 is respectively connected to the height confirmator 4 and the acoustic-optic alarm 6.

[0030] The laser emitting element 1 is installed outside the open area of the annealing furnace, and the installation elevation is h. Among them, the lowest height H of the equipment inside the annealing furnace should satisfy h < H. Optionally, the laser emitting element 1 is a cross-line laser emitter, which is used to emit a horizontal laser line onto the laser receiving plate 2.

[0031] The laser receiving plate 2 is installed inside the open area of the annealing furnace, and is used to receive and display the horizontal laser line emitted by the laser emitter. The installation height of the laser emitting element 1 is the same as the installation height of the laser receiving plate 2. The elevation of the horizontal laser line on the laser receiving plate 2 is also h, so that the laser line and the laser emitter form a horizontal plane with an elevation of h.

[0032] The height detector 3 is connected to the laser emitting element 1, and is used to control the laser emitting element 1 to emit laser for a preset time. Optionally, the height detector 3 can be set as a height detection button. After the staff presses the height detection button, the laser emitter emits laser for a preset time, and the preset time can be set according to the time required for the staff to check and confirm the height.

[0033] The height confirmator 4 is connected to the processor 5, and the height confirmator 4 is used to send a confirmation signal to the processor 5 after the laser line state on the laser receiving plate 2 is normal. Among them, the height confirmator 4 can be set as a height confirmation button. After the staff checks that the laser on the laser receiving plate 2 is a straight line, they can press the height confirmation button to indicate that the inspection and confirmation are completed, and the processor 5 will receive the confirmation signal.

[0034] The sound and light alarm 6 is connected to the processor 5 and is used to issue an audio and visual alarm. Optionally, the sound and light alarm 6 includes a sounder and a light emitter, which are used to issue an audio and visual alarm according to the received alarm signal.

[0035] The processor 5 may be a PLC processor 5, which is used to perform logic processing on the received signal and generate an output alarm signal.

[0036] Optionally, the processor 5 is configured to:

[0037] The laser emitting element 1 emits a horizontal laser line passing through the top of the inner cover of the steel coil. If the height of the inner cover is less than the preset height, the height confirmer 4 sends a confirmation signal to the processor 5;

[0038] If the inner cover height is greater than or equal to the preset height, the height confirmer 4 does not send a confirmation signal to the processor 5 , and the processor 5 sends an alarm signal to the sound and light alarm 6 before the trolley rotates.

[0039] Specifically, the steel coil is placed on the trolley. Before entering the annealing furnace door A 7, the steel coil is fastened with the inner cover in the open area. The staff presses the height detection button, and the laser emitting element 1 emits a horizontal laser line passing through the top of the inner cover. If the height of the inner cover is normal, that is, the height of the inner cover is less than the preset height (the preset height is less than H), a complete line is formed on the laser receiving board 2. If the height of the inner cover is abnormal, that is, the height of the inner cover is greater than or equal to the preset height, it exceeds the elevation of the laser line, and a discontinuous line segment is displayed on the laser receiving board 2.

[0040] After the staff confirms that the laser line on the laser receiving plate 2 is normal, they press the height confirmation button. If the inner cover is buckled and no height detection or height confirmation is performed before the trolley rotates, an alarm message is sent to the sound and light alarm 6, and the sound and light alarm 6 sounds an alarm reminder.

[0041] In summary, the utility model discloses a device for detecting the height of the inner cover of an annular annealing furnace before it enters the furnace, comprising a laser emitting element, a laser receiving board, a height detector, a height confirmer, an audible and visual alarm, and a processor; the laser emitting element is installed outside the open area of ​​the annealing furnace; the laser receiving board is installed inside the open area of ​​the annealing furnace, and is used to receive and display the laser line emitted by the laser emitter; the height detector is connected to the laser emitting element, and is used to control the laser emitting element to emit laser light and to last for a preset time; the height confirmer is connected to the processor, and is used to send a confirmation signal to the processor after the laser line state on the laser receiving board is normal; the audible and visual alarm is connected to the processor, and is used to issue an audible and visual alarm. The device is convenient for on-site operation, can realize visual detection of the height of the inner cover before it enters the furnace, and has an alarm reminder for unconfirmed height, thereby avoiding the operational risks brought about by the inner cover entering the furnace with abnormal height.

[0042] Based on the same inventive concept, this embodiment further provides an annular annealing furnace, comprising the aforementioned annular annealing furnace inner cover entry height detection device.

[0043] In summary, the utility model discloses an annular annealing furnace, including an annular annealing furnace inner cover entering the furnace height detection device. The device facilitates on-site operations and can realize visual detection of the height of the inner cover before entering the furnace. At the same time, it has an alarm reminder for unconfirmed height, avoiding the operational risks brought about by the inner cover with abnormal height entering the furnace.

[0044] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0045] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention.

[0046] If these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include these modifications and variations.

Claims

1. A device for detecting the height of the inner cover of an annular annealing furnace, characterized in that: include: Laser emitting element, laser receiving board, height detector, height confirmer, sound and light alarm and processor; The laser emitting element is installed outside the open area of ​​the annealing furnace; the laser receiving board is installed inside the open area of ​​the annealing furnace, and is used to receive and display the laser line emitted by the laser emitter; the height detector is connected to the laser emitting element, and is used to control the laser emitting element to emit laser light and continue to emit laser light for a preset time; The height confirmer is connected to the processor, and is used to send a confirmation signal to the processor after the laser line state on the laser receiving board is normal; the sound and light alarm is connected to the processor, and is used to issue an audio-visual alarm.

2. The device according to claim 1, wherein The laser emitting element is a line laser emitter, which is used to emit a horizontal laser line toward the laser receiving board.

3. The device according to claim 1, wherein The installation height of the laser emitting element is the same as the installation height of the laser receiving board.

4. The device according to any one of claims 1 to 3, characterized in that The installation height of the laser emitting element and the installation height of the laser receiving plate are both less than the lowest height of the equipment in the annealing furnace.

5. The device according to claim 1, wherein The processor is a PLC processor.

6. The device according to claim 1, wherein The processor is configured to: The laser emitting element emits a horizontal laser line passing through the top of the inner cover of the steel coil. If the height of the inner cover is less than a preset height, the height confirmer sends a confirmation signal to the processor; If the height of the inner cover is greater than or equal to the preset height, the height confirmer does not send a confirmation signal to the processor, and the processor sends an alarm signal to the sound and light alarm before the trolley rotates.

7. The device according to claim 1, wherein The sound and light alarm device comprises a sound generator and a light emitter, and is used for issuing an audiovisual alarm according to a received alarm signal.

8. A ring annealing furnace, characterized in that: The invention comprises the device for detecting the height of the inner cover of an annular annealing furnace as described in any one of claims 1 to 7.

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