Direct-current arc electroslag heating ladle furnace

Abstract

The utility model discloses a direct-current arc electroslag heating ladle furnace which comprises a furnace body, a first guiding piece vertically arranged on one side of the furnace body, an electrode arranged on the first guiding piece in a guiding mode, an electrode channel arranged on a cover body of the furnace body and used for allowing the electrode to pass through, and a baffle arranged between the electrode and the first guiding piece. By arranging the baffle between the electrode and the first guide piece, materials splashed out of the gap can be effectively shielded, the probability that the materials splashed to the first guide piece is reduced, and therefore the first guide piece can be effectively protected, and the phenomenon of movement blockage caused by adhesion and splashing of the first guide piece is reduced; and the occurrence probability of related faults caused by lagging is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of ladle furnace equipment, and in particular to a DC electric arc electroslag heating ladle furnace. Background Technology

[0002] DC circuit electroslag heating ladle furnace is a commonly used piece of equipment in the steelmaking industry. It mainly consists of a ladle furnace and electrodes. The electrodes can move up and down vertically. During steelmaking, the high temperature inside the furnace causes molten steel to splash. Since there are electrode channels on the furnace cover for the electrodes to pass through, molten steel splashes from the gap between the electrode channels and the motor onto the guide rails of the drive structure that moves the electrodes up and down. This makes the guide rails unclean, affecting the flexible movement of the electrodes. Electrode movement may become stuck or the adjustment accuracy may decrease. Both electrode sticking and decreased adjustment accuracy may lead to electrode impact, affecting the service life of the electrodes and guide rails. Utility Model Content

[0003] The purpose of this invention is to solve the above-mentioned problems by providing a DC arc electroslag heating ladle furnace.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a DC electric arc electroslag heating ladle furnace, comprising a furnace body, a first guide member vertically arranged on one side of the furnace body and an electrode guided on the first guide member, an electrode channel for the electrode to pass through is provided on the cover of the furnace body, and a baffle is also included, the baffle being arranged between the electrode and the first guide member, the baffle being raised and lowered synchronously with the electrode.

[0005] Furthermore, it also includes a lifting arm, which is guided and cooperates with the first guide member, the electrode is disposed at the end of the lifting arm, and the baffle is disposed on the lifting arm.

[0006] Furthermore, the baffle is an arc-shaped plate, with both ends of the arc-shaped plate bent towards the electrode.

[0007] Furthermore, the lifting arm is provided with an adjustment assembly, which includes a mounting plate that can be adjusted in the vertical direction, and a baffle is disposed on the mounting plate.

[0008] Furthermore, the adjustment assembly includes a second guide member arranged vertically and a second linear drive member disposed between the second guide member and the lifting arm, and the mounting plate is disposed at the lower end of the second guide member.

[0009] Furthermore, the baffle and the connecting plate are rotatably connected by a pin, and a telescopic rod is hinged to the mounting plate. The other end of the telescopic rod is hinged to the baffle. The axis of the telescopic rod at the hinge position of the mounting plate and the baffle is parallel to the pin, and the pin is perpendicular to the extension direction of the lifting arm.

[0010] Furthermore, the adjustment assembly also includes a connecting plate, a second guide member that guides and cooperates with the connecting plate, and the connecting plate and the lifting arm are detachably and fixedly connected.

[0011] Compared with the prior art, the DC arc electroslag heating ladle furnace disclosed in this utility model has the following advantages: by setting a baffle between the electrode and the first guide member, the material splashing out from the gap can be effectively blocked, reducing the probability of splashing onto the first guide member, thereby effectively protecting the first guide member, reducing the phenomenon of movement jamming caused by splashing adhering to the first guide member, and reducing the probability of related failures caused by jamming. Attached Figure Description

[0012] Figure 1 This is a side view of the structure of a DC arc electroslag heating ladle furnace according to the present invention.

[0013] Figure 2 This is a schematic diagram of the overall structure of a DC arc electroslag heating ladle furnace according to this utility model.

[0014] Figure 3 This is a schematic diagram of the connection structure between the protective plate and the adjustment component and the lifting arm in a DC arc electroslag heating ladle furnace according to this utility model.

[0015] Figure 4 for Figure 3 The diagram shown is a partially enlarged structural schematic of point A in a DC arc electroslag heating ladle furnace according to this utility model.

[0016] Figure 5 for Figure 4 The diagram shown is a partially enlarged structural schematic of point B in a DC arc electroslag heating ladle furnace according to this utility model.

[0017] In the figure: 1. Furnace body; 10. Cover; 11. Electrode channel; 2. Electrode; 21. First guide; 22. First linear drive; 23. Lifting arm; 230. Guide sleeve; 3. Baffle; 31. Adjustment assembly; 310. Connecting plate; 311. Second guide; 312. Second linear drive; 313. Mounting plate; 314. Telescopic rod; 315. Pin. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0019] Please refer to Figure 1-5As a specific implementation method, the technical solution of this utility model is as follows: a DC electric arc electroslag heating ladle furnace, including a furnace body 1, a first guide member 21 vertically arranged on one side of the furnace body 1 and an electrode 2 guided on the first guide member 21, an electrode channel 11 for the electrode 2 to pass through is provided on the cover 10 of the furnace body 1, and a baffle 3 is also included. The baffle 3 is arranged between the electrode 2 and the first guide member 21, and the baffle 3 is raised and lowered synchronously with the electrode 2.

[0020] For details, please refer to Figure 1 , Figure 2 This application provides a DC arc electroslag heating ladle furnace, comprising a furnace body 1, a cover 10 on the top of the furnace body 1, and an electrode channel 11 for an electrode 2 to pass through. On one side of the furnace body 1, two first guide members 21 are vertically arranged, and the electrode 2 is vertically guided on the first guide members 21 and driven by a first linear drive member 22. During operation, the first linear drive member 22 lowers, allowing the electrode 2 to extend into the furnace body 1 through the electrode channel 11 and into the electroslag inside the furnace body 1 to supply power. Heat is generated through the resistance of the electroslag itself. Because the electrode 2 is conductive, the radial dimension of the electrode channel 11 must be larger than the radial dimension of the electrode 2 to prevent the electrode 2 from contacting the cover 10. The electrode channel 11 and the side wall of the electrode 2 have a large gap. When material splashes inside the heating furnace body 1, it will splash from the gap and contaminate the first guide member 21. This application provides a baffle 3 between the electrode 2 and the first guide member 21, which can effectively block the material splashing out from the gap and reduce the probability of splashing onto the first guide member 21. This can effectively protect the first guide member 21, reduce the phenomenon of movement jamming caused by splashing on the first guide member 21, and reduce the probability of related failures caused by jamming. This application also provides baffle 3 and electrode 2 to be raised and lowered synchronously, so that the electrode 2 is raised together when steelmaking is completed. The baffle 3 will not hinder the subsequent opening of the cover 10 and pouring out of molten steel.

[0021] Furthermore, as a specific implementation, the first guide member 21 can be a guide rod, and the first linear drive member 22 can be any one of a hydraulic telescopic rod or an electric telescopic rod, or it can be a drive method using a ball screw.

[0022] Furthermore, as a specific implementation method, refer to Figures 1-3This application also includes a lifting arm 23, which is guided and cooperates with a first guide member 21. The electrode 2 is disposed at the end of the lifting arm 23, and the baffle 3 is disposed on the lifting arm 23. Specifically, the lifting arm 23 has a strip-shaped structure, with a guide sleeve 230 at one end that cooperates with the first guide member 21. A first linear drive member 22 is disposed between the lifting arm 23 and the equipment frame, which is fixed to the ground, thereby achieving the purpose of driving the lifting arm 23 to rise and fall. The baffle 3 is disposed below the lifting arm 23.

[0023] Furthermore, as a preferred embodiment, refer to Figures 3-5 The baffle 3 is an arc-shaped plate with both ends bent towards the electrode 2. By making the baffle 3 an arc-shaped structure with both ends bent towards the electrode 2, the path of the splash to the first guide member 21 can be better blocked, thereby achieving a better blocking effect. The baffle 3 can be made of bent steel plate.

[0024] Furthermore, as a specific implementation, the lifting arm 23 is provided with an adjustment assembly 31, the adjustment assembly 31 including a mounting plate 313 that can be adjusted vertically, and the baffle 3 is disposed on the mounting plate 313. Specifically, refer to... Figures 3-5The lifting adjustment assembly 31 includes two second guide members 311 vertically guided on the lifting arm 23. A second linear drive member 312 is vertically arranged between the second guide members 311 and the lifting arm 23. The second linear drive member 312 can be either an electric telescopic rod or a hydraulic telescopic rod, thereby driving the second guide members 311 to adjust their position in the vertical direction. A mounting plate 313 is provided at the lower end of the second guide members 311, and a baffle 3 is provided on the mounting plate 313. Since the electrode 2 is a consumable part, its length will shorten due to wear and tear during use. In order to achieve a better shielding effect and avoid collision between the baffle 3 and the furnace body 1 below, the adjustment assembly 31 is provided to adjust the position of the baffle 3 in the vertical direction according to the wear and tear of the electrode 2. During adjustment, the mounting plate 313 is raised and lowered by the second linear drive member 312 to achieve the purpose of adjusting the position of the baffle 3 until it is properly adjusted. After reaching the desired position, the second linear drive 312 stops, maintains the current position, and records the current position. Upon powering on again after power-off, it can automatically return to the recorded position. It should be noted that the second linear drive 312 is preferably an electric telescopic rod. The second electric telescopic rod is equipped with an AT24C256 storage module to memorize the extension length of the second linear drive 312. It is configured with an STM32 microcontroller to control the second linear drive 312, thereby achieving the purpose of controlling the second linear drive 312. It can also memorize the position based on each adjustment, facilitating automatic return to the original position upon power-on or power-off. The STM32 microcontroller can be an STM32G474 or similar model, and is not specifically limited here. Similarly, the second linear drive 312 can be controlled using any existing control method that can achieve the functions required by this application.

[0025] Specifically, as another implementation, the second linear drive 312 can be a hand-cranked telescopic rod commonly used in the prior art. Using a hand-cranked telescopic rod simplifies the structure and makes the control method simpler.

[0026] Furthermore, as a specific implementation, the adjustment component 31 includes a second guide member 311 vertically guided and a second linear drive member 312 disposed between the second guide member 311 and the lifting arm 23, and the mounting plate 313 is disposed at the lower end of the second guide member 311.

[0027] Further, as a specific implementation, the baffle 3 and the connecting plate 310 are rotatably connected by a pin 315. A telescopic rod 314 is hinged to the mounting plate 313, and the other end of the telescopic rod 314 is hinged to the baffle 3. The axes of the telescopic rod 314, the mounting plate 313, and the baffle 3 at their hinge positions are all parallel to the pin 315. The pin 315 is perpendicular to the extension direction of the lifting arm 23. Specifically, the telescopic rod 314 is an electrically operated telescopic rod. This configuration allows for adjustment of the tilt angle of the baffle 3. Figures 1-3 When the upper end of the baffle 3 is tilted toward the electrode 2, it can provide a better shielding effect. When the electrode 2 is replaced, the length of the telescopic rod 314 can be adjusted to set the baffle 3 vertically or tilt the upper end away from the electrode 2, thus facilitating the replacement of the electrode 2.

[0028] Furthermore, it should be noted that, as another possible implementation, the telescopic rod 314 can be a hand-cranked telescopic rod as in the prior art, which can also achieve the same effect.

[0029] Furthermore, as a specific implementation, the adjustment assembly 31 further includes a connecting plate 310, with the second guide member 311 guiding and engaging with the connecting plate 310. The connecting plate 310 is detachably and fixedly connected to the lifting arm 23. Specifically, the connecting plate 310 can be detachably fixed to the upper surface of the lifting arm 23 using a locking screw. The connecting plate 310 is provided with guide holes that guide and engage with the two second guide members 311. When the second linear drive member 312 uses a hand-cranked telescopic rod, a locking bolt (not shown in the figure) is threaded onto the side wall of the guide hole. The locking bolt can lock and release the second guide rod. After the mounting plate 313 is adjusted to a suitable position, it is locked by the locking bolt (not shown in the figure) to achieve the purpose of locking the position of the mounting plate 313.

[0030] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A DC electric arc electroslag heating ladle furnace, comprising a furnace body (1), a first guide member (21) vertically disposed on one side of the furnace body (1), and electrodes (2) guided on the first guide member (21), wherein an electrode (2) channel (11) for the electrodes (2) to pass through is provided on the cover (10) of the furnace body (1), characterized in that, It also includes a baffle (3), which is disposed between the electrode (2) and the first guide (21), and the baffle (3) and the electrode (2) are synchronously raised and lowered.

2. The DC arc electroslag heating ladle furnace according to claim 1, characterized in that, It also includes a lifting arm (23), which is guided and cooperated with the first guide member (21), the electrode (2) is disposed at the end of the lifting arm (23), and the baffle (3) is disposed on the lifting arm (23).

3. A DC arc electroslag heating ladle furnace according to claim 2, characterized in that, The baffle (3) is an arc-shaped plate, with both ends of the arc-shaped plate bent towards the electrode (2).

4. A DC arc electroslag heating ladle furnace according to claim 2 or 3, characterized in that, The lifting arm (23) is provided with an adjustment component (31), the adjustment component (31) includes a mounting plate (313) that can be adjusted in the vertical direction, and the baffle (3) is provided on the mounting plate (313).

5. A DC arc electroslag heating ladle furnace according to claim 4, characterized in that, The adjustment assembly (31) includes a second guide member (311) arranged vertically and a second linear drive member (312) arranged between the second guide member (311) and the lifting arm (23). The mounting plate (313) is arranged at the lower end of the second guide member (311).

6. A DC arc electroslag heating ladle furnace according to claim 5, characterized in that, The baffle (3) and the connecting plate (310) are rotatably connected by a pin (315). A telescopic rod (314) is hinged on the mounting plate (313). The other end of the telescopic rod (314) is hinged to the baffle (3). The axis of the hinge position of the telescopic rod (314) and the mounting plate (313) and the baffle (3) is parallel to the pin (315). The pin (315) is perpendicular to the extension direction of the lifting arm (23).

7. A DC arc electroslag heating ladle furnace according to claim 6, characterized in that, The adjustment assembly (31) also includes a connecting plate (310), a second guide (311) and a connecting plate (310) for guiding cooperation, and the connecting plate (310) and the lifting arm (23) are detachably and fixedly connected.

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