LF refining furnace electrode rotation lower end positioning device

Abstract

The utility model provides an LF refining furnace electrode rotation lower end positioning device which comprises an LF refining furnace, a furnace cover is arranged at the top of the LF refining furnace, a first support is arranged on one side of an electrode, a first laser transmitter and a second laser transmitter are arranged on the first support, a second support is arranged on the side, away from the first support, of the LF refining furnace, and the second laser transmitter is arranged on the second support. The second support is provided with a first infrared light sensor corresponding to the first laser transmitter and a second infrared light sensor corresponding to the second laser transmitter. The first laser emitter and the second laser emitter are arranged, whether the bottom end of the electrode bar is located at a proper position or not is accurately judged through emitted laser rays, an operator is prompted, the descending distance of the electrode bar is effectively prevented from being too large or too small, potential safety hazards are reduced, and the operation effect is improved; the structure is simple and the use mode is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the plate rolling technical field relates to a LF refining furnace electrode rotation lower end positioning device. BACKGROUND

[0002] Before the electrode of the electrode rotating type double-station ladle refining furnace is switched to the work station, the electrode lower end is high bright after high-voltage electricity is passed, and in the process of the electrode being put down in the middle work station, the electrode lowering distance completely depends on the experience of the operator and the on-site visual judgment, if the electrode lowering distance is too small, the refining effect is affected, if the experience is not done or the judgment is wrong, the lowering distance is too large, the electrode lower end is below the upper edge of the furnace cover, and in the electrode rotating process, the electrode bottom end is easily scratched on the furnace cover, and serious will cause the electrode to break, and production accidents are caused. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a LF refining furnace electrode rotation lower end positioning device.

[0004] Therefore, the utility model takes the following technical scheme:

[0005] A LF refining furnace electrode rotation lower end positioning device, including the LF refining furnace, the top of LF refining furnace is equipped with the furnace cover, one side of LF refining furnace is equipped with the first support, the first support is equipped with the first laser emitter and the second laser emitter, the first laser emitter is located above the furnace cover and is lower than the second laser emitter, the side of LF refining furnace away from the first support is equipped with the second support, the second support is equipped with the first infrared light sensor corresponding with the first laser emitter and the second infrared light sensor corresponding with the second laser emitter, the first infrared light sensor and the first laser emitter are located in the same horizontal plane, the second infrared light sensor and the second laser emitter are located in the same horizontal plane.

[0006] Further, the first infrared light sensor is connected with the controller, the controller is connected with the second infrared light sensor, and the controller is also connected with the alarm.

[0007] Further, the second support is provided with a first protective shell, and the first infrared light sensor is located in the first protective shell.

[0008] Further, the second support is provided with a second protective shell, and the second infrared light sensor is located in the second protective shell.

[0009] The beneficial effects of this utility model are as follows: by setting up a first laser emitter and a second laser emitter, the emitted laser beams can accurately determine whether the bottom end of the electrode rod is in a suitable position and provide prompts to the operator, effectively preventing the electrode rod from falling too far or too short, reducing safety hazards and improving the operation effect; the structure is simple and the method of use is convenient. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a control principle diagram of the present invention;

[0012] Figure 3 This is a schematic diagram showing the electrode rod of this utility model descending to an appropriate position;

[0013] Figure 4 This is a schematic diagram of the electrode rod of this utility model when its descent position is too large;

[0014] Figure 5 This is a schematic diagram showing the electrode rod of this invention at an excessively small descending position;

[0015] In the figure, 1- LF refining furnace, 2- furnace cover, 3- first support, 4- first laser emitter, 5- second laser emitter, 6- second support, 7- first infrared light sensor, 8- second infrared light sensor, 9- controller, 10- alarm, 11- first protective shell, 12- first light-transmitting tube, 13- second protective shell, 14- second light-transmitting tube, 15- electrode rod. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings:

[0017] like Figure 1 and 2As shown, an electrode rotation lower end positioning device for an LF refining furnace includes an LF refining furnace 1. A furnace cover 2 is provided on the top of the LF refining furnace 1. A first support 3 is provided on one side of the LF refining furnace 1. A first laser emitter 4 and a second laser emitter 5 are provided on the first support 3. The first laser emitter 4 is located above the furnace cover 2 and below the second laser emitter 5. The height of the first laser emitter 4 is at the extreme position of the lower end of the electrode rod. The first laser emitter 4 and the second laser emitter 5 can emit infrared laser rays. When the bottom end of the electrode rod is lower than the height of the laser emitter 4, rotating the electrode rod will cause the electrode rod to rub against the furnace cover 2. A second support 6 is provided on the side of the LF refining furnace 1 away from the first support 3. A first infrared light sensor 7 corresponding to the first laser emitter 4 and a second infrared light sensor 8 corresponding to the second laser emitter 6 are provided on the second support 6. The first infrared light sensor 7 and the first laser emitter 4 are located in the same horizontal plane. The first laser emitter 4 and the second laser emitter 5 are located on the same horizontal plane. The first laser emitter 4 can emit a horizontal laser and be sensed by the first infrared light sensor 7. The laser emitted by the first laser emitter 4 can pass directly above the furnace cover 2. Similarly, the second laser emitter 6 can emit a horizontal laser and be sensed by the second infrared light sensor 8. The laser emitted by the second laser emitter 6 is parallel to the laser emitted by the first laser emitter 5. When the height of the lower end of the electrode rod is lower than the height of the first laser emitter 4 corresponding to the LF refining furnace 1, the laser emitted by the first laser emitter 4 is blocked by the electrode rod, thus preventing the first infrared light sensor 7 from sensing the laser. The first infrared light sensor 7 is connected to a controller 9, which is connected to the second infrared light sensor 8. The first infrared light sensor 7 and the second infrared light sensor 8 can send signals to the controller 9. The controller 9 is also connected to an alarm 10, which can control the alarm 10 to issue an alarm signal to alert the operator.

[0018] To prevent the bright light emitted from the electrode rod and the LF refining furnace 1 from affecting the infrared light sensor, the second support 6 is provided with a first protective shell 11. The first infrared light sensor 7 is located inside the first protective shell 11. The side wall of the first protective shell 11 is connected to a first light-transmitting tube 12, which faces the first laser emitter 4. The laser emitted by the first laser emitter 4 can be directed to the first infrared light sensor 7 inside the first protective shell 11 through the first light-transmitting tube 12. In addition, the second support 6 is also provided with a second protective shell 13, in which the second infrared light sensor 8 is located. The side wall of the second protective shell 13 is connected to a second light-transmitting tube 14, which faces the second laser emitter 5.

[0019] The method of using this utility model is as follows:

[0020] When the electrode rod 15 is lowered above the LF refining furnace 1, after the operator has lowered it to the appropriate position (e.g.Figure 3 As shown), the lower end of electrode rod 15 blocks the laser beam emitted by the second laser emitter 5, while the laser beam emitted by the first laser emitter 4 is not blocked and is thus detected by the first infrared sensor 7. At this time, the operator can rotate the electrode rod to move electrode rod 15 horizontally to another refining furnace. When rotating electrode rod 15, it will not scrape or collide with the furnace cover 2 below. If the descent distance is too large (e.g., Figure 4 As shown), the bottom end of the electrode rod 15 blocks the laser beam emitted by the first laser emitter 4, preventing it from being detected by the first infrared sensor 7. At this time, the controller 9 controls the alarm 10 to issue an alarm signal to prompt the operator to adjust the height of the electrode rod, effectively preventing the operator from moving the electrode rod 15 in an unsuitable position; if the descent distance is too small (e.g., Figure 5 As shown, when the electrode rod 15 is not in the appropriate position, the bottom end of the electrode rod 15 cannot block the laser beam emitted by the second laser emitter 5. The second infrared light sensor 8 senses the beam emitted by the second laser emitter 5. At this time, the controller 9 can control the alarm 10 to issue an alarm signal to prompt the operator to adjust the electrode rod 15 to the appropriate height.

[0021] Using this device can effectively provide accurate prompts to operators, effectively prevent the electrode rod from descending too far or too short a distance, reduce safety hazards, and improve operational efficiency.

Claims

1. A positioning device for the lower end of an electrode rotation in an LF refining furnace, characterized in that, The LF refining furnace (1) is provided with a furnace cover (2) on the top and a first support (3) on one side of the LF refining furnace (1). The first support (3) is provided with a first laser emitter (4) and a second laser emitter (5). The first laser emitter (4) is located above the furnace cover (2) and below the second laser emitter (5). The LF refining furnace (1) is provided with a second support (6) on the side away from the first support (3). The second support (6) is provided with a first infrared light sensor (7) corresponding to the first laser emitter (4) and a second infrared light sensor (8) corresponding to the second laser emitter (5). The first infrared light sensor (7) and the first laser emitter (4) are located in the same horizontal plane, and the second infrared light sensor (8) and the second laser emitter (5) are located in the same horizontal plane.

2. The electrode rotation lower end positioning device for an LF refining furnace according to claim 1, characterized in that, The first infrared light sensor (7) is connected to a controller (9), which is connected to the second infrared light sensor (8). The controller (9) is also connected to an alarm (10).

3. The electrode rotation lower end positioning device for an LF refining furnace according to claim 1, characterized in that, The second bracket (6) is provided with a first protective shell (11), the first infrared light sensor (7) is located inside the first protective shell (11), and the side wall of the first protective shell (11) is connected to a first light-transmitting tube (12), which faces the first laser emitter (4).

4. The electrode rotation lower end positioning device for an LF refining furnace according to claim 1, characterized in that, The second bracket (6) is provided with a second protective shell (13), the second infrared light sensor (8) is located inside the second protective shell (13), and the side wall of the second protective shell (13) is connected to a second light-transmitting tube (14), which faces the first laser emitter (4).

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