A direct current electric furnace adjustable pole pitch support device

Abstract

This utility model relates to the technical field of electric furnace smelting equipment, specifically an adjustable electrode center distance support device for a DC electric furnace. It is suitable for four-electrode DC furnaces, firmly fixing the electrodes to electrode supports to ensure their stability during furnace operation. It includes an electrode support platform with four symmetrically arranged electrodes. Each electrode has a support frame on both sides, which is fixedly connected to the electrode support platform. The support frames on both sides of the electrode are fixed at an angle to the electrode support platform, forming a sliding track for electrode movement. Sealing steel plates are provided on the other two sides of the electrode, with both ends of the sealing steel plates connected to the support frames via adjusting bolts. The adjusting bolt holes are elongated holes. When adjusting the electrode center distance, the electrode support platform does not need to be moved as a whole; only the sealing steel plates need to be moved at a 45° angle using the adjusting bolts to quickly adjust the electrode center distance, greatly saving adjustment time and bringing the adjustment cost close to zero.

Description

Technical Field

[0001] This utility model relates to the technical field of electric furnace smelting equipment, specifically an adjustable electrode center distance support device for a DC electric furnace. It is suitable for four-electrode DC furnaces, securely fixing the electrodes to the electrode support to ensure electrode stability during furnace operation. Background Technology

[0002] In existing technologies, during electric furnace smelting, the electrode center distance has a significant impact on the furnace's melting efficiency and quality. Appropriate adjustment of the electrode center distance can improve the furnace's operating efficiency. The electrode is surrounded by a supporting frame, a platform plate, a rubber plate, and a connecting plate. The platform plate is welded above the supporting frame, and the rubber plate is installed at the electrode holes on the platform plate via the connecting plate, sealing the gap between the platform and the electrode. A utility model patent entitled "An Adjustable Electrode Center Distance Device for a DC Electric Furnace" was disclosed in the Chinese utility model patent specification dated November 14, 2025, with patent number ZL 202423219018.9 (see...). Figure 4 It consists of two separate platform units: a left electrode support platform and a right electrode support platform. The left and right electrode support platforms are completely symmetrical. Each platform unit has a bolted sealing steel plate. The longitudinal electrode spacing can be adjusted by moving the sealing steel plate up and down using the bolts, and the transverse electrode spacing can be adjusted by moving the platform unit. The drawback is that the electrode spacing can only be adjusted longitudinally; lateral adjustment requires disassembling the profiles for welding, moving the entire unit, and then re-welding, resulting in higher costs. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable pole center distance support device for a DC electric furnace that enables synchronous adjustment of the longitudinal and transverse pole center distances, in order to address the aforementioned shortcomings.

[0004] The technical solution of this utility model is: an adjustable electrode center distance support device for a DC electric furnace, including an electrode support platform with four symmetrically arranged electrodes inside. Each electrode has a support frame on both sides, and the support frame is fixedly connected to the electrode support platform. The support frames on both sides of the electrode are fixed at an oblique angle to the electrode support platform, forming a slide for electrode movement. A sealing steel plate is provided around the electrode, and both ends of the sealing steel plate are connected to the support frame by adjusting bolts. The adjusting bolt holes are elongated holes.

[0005] The supporting frames on both sides of the electrode are fixed at a 45-degree angle to the electrode support platform.

[0006] The advantages of this invention are: rapid adjustment can be achieved simply by adjusting the bolts to move the sealing steel plate and the electrode lifting system. When adjusting the electrode center distance of the electric furnace, the electrode support platform does not need to be moved as a whole; only the bolts need to be adjusted to move the sealing steel plate at a 45° angle to quickly adjust the electrode center distance, greatly saving adjustment time and bringing the adjustment cost close to zero.

[0007] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0008] Figure 1 This is a simplified structural diagram of the present invention.

[0009] Figure 2 yes Figure 1 Simplified facade structure diagram.

[0010] Figure 3 yes Figure 1 Simplified diagram of the rotating structure along section AA.

[0011] Figure 4 This is a simplified structural diagram of the electrode support device before the improvement.

[0012] The components in the diagram are named as follows: support frame 1, adjusting bolt 2, sealing steel plate 3, electrode support platform 4, and electrode 5. Detailed Implementation

[0013] See Figure 1-3 An adjustable electrode center distance support device for a DC electric furnace includes an electrode support platform 4. Four symmetrically arranged electrodes 5, forming a square, are located within the electrode support platform 4. Each electrode 5 has a support frame 1 on both sides, which is fixedly connected to the electrode support platform 4. An electrode lifting system is supported above the support frame 1 and connected to the support frame 1 via adjusting bolts. The support frames 1 on both sides of the electrode 5 are fixed obliquely to the electrode support platform 4, preferably at an angle of α=45 degrees. The electrode 5 is sandwiched between the support frames 1, forming a sliding track for its movement. A sealing steel plate 3 is also provided around the electrode 5, blocking it along the sliding track. The two ends of the sealing steel plate 3 are connected to the support frame 1 via adjusting bolts 2. The holes in the adjusting bolts 2 are elongated holes to facilitate the movement and subsequent fixing of the sealing steel plate 3.

[0014] By moving the sealing steel plate 3 at a 45-degree angle, the longitudinal and lateral center distance of the electrode holes of the electrode support device can be adjusted synchronously. This avoids the need for overall modification or dismantling of the electrode support platform 4 when the center distance of the electric furnace is changed, greatly reducing the workload and adjustment time, and making the adjustment cost close to zero.

[0015] Working Principle: This device consists of an electrode support platform 4, a support frame 1, adjusting bolts 2, and a sealing steel plate 3. The upper surface of the support frame 1 has elongated bolt holes. The sealing steel plate 3 is fixed above the support frame 1 by the adjusting bolts 2. During use, the electrode lifting system sits above this electrode support device, and the electrode 5 passes through the electrode hole in the center of the sealing steel plate 3. To change the electrode center distance, adjust the adjusting bolts 2 at a 45-degree angle and move the sealing steel plate 3 and the electrode lifting system to achieve synchronous longitudinal and transverse changes in the electrode center distance.

[0016] In the electric furnace smelting process, the main function of this device is to adjust the distance between two adjacent sets of electrodes to ensure the usability of the electrodes during furnace operation. By adjusting the distance between two adjacent sets of electrodes, the modification or reconstruction of the electrode adjustment device is avoided when the electrode center distance of the electric furnace changes, greatly reducing the workload and saving modification costs.

[0017] The above description is merely a specific embodiment of this utility model, and the various examples do not constitute a limitation on the substantive content of this utility model.

Claims

1. An adjustable electrode center distance support device for a DC electric furnace, comprising an electrode support platform (4), wherein four symmetrically arranged electrodes (5) are located within the electrode support platform (4), and each electrode (5) has a support frame (1) on both sides, the support frame (1) being fixedly connected to the electrode support platform (4), characterized in that... The support frame (1) on both sides of the electrode (5) is fixed at an angle to the electrode support platform (4) to form a slide for the electrode (5) to move. A sealing steel plate (3) is provided around the electrode (5). The two ends of the sealing steel plate (3) are connected to the support frame (1) by adjusting bolts (2). The holes of the adjusting bolts (2) are elongated holes.

2. The adjustable pole center distance support device for a DC electric furnace according to claim 1, characterized in that... The supporting skeleton (1) on both sides of the electrode (5) is fixed at a 45-degree angle to the electrode support platform (4).

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