Arc extinguishing structure of silicon-iron-copper tile contactor

Abstract

The utility model discloses a kind of arc extinguishing structure of ferrosilicon copper tile contactor, specifically related to the technical field of ferrosilicon smelting device, including electrode shell, multiple contactors are evenly distributed in four quarters, and the fixed groove in the side of contactor away from electrode shell is placed in belt type pressure ring, and it is closely attached to contactor and electrode shell by virtue of elasticity, and it is evenly applied pressure, and it is filled to all kinds of gap, and contact intensity is strongly enhanced, and the risk of partial flow is suppressed from source, and assembly groove is opened in the side of contactor close to electrode shell, and the both ends of rotating roller are rotatably connected with fixed cylinder bottom and are connected with torsion spring, and torsion spring reserves energy, and when contactor is impacted or electrode shell thermal expansion and cold shrink, rotating roller can be adaptively rotated, and the driving plate in rotating roller sliding groove is connected with arc-shaped seat, and is closely contacted with electrode shell, and arc-shaped seat both sides telescopic spring is connected with fixed seat, and provide elastic buffer when emergency, prevent uneven contact, and belt type pressure ring is coordinated with control component, the former maintains close contact, the latter dynamically adjusts, and eliminates partial flow.

Description

Technical Field

[0001] This utility model relates to the technical field of ferrosilicon smelting equipment, specifically to an arc-extinguishing structure for a ferrosilicon copper tile contactor. Background Technology

[0002] The electric arc furnace is a system equipment for ferrosilicon smelting, and the combined holding device is the core equipment of this system.

[0003] The electrode shell of the combined holder operates on the principle of core conductivity. Electrode firing is achieved through resistance heating from the core to the electrode shell surface. Current flows from the transformer secondary output terminal through the short grid, feeder, conductive elements, and electrodes into the electric furnace. The electrode conductive elements of the combined holder consist of a set of conductive elements pre-compressed by 16 sets of butterfly springs, generating a clamping force to tightly hold the electrode shell's ribs in place, preventing electrode shell spitting during normal production.

[0004] However, due to limitations in the contactor structure, and the pursuit of higher production volumes on-site, secondary currents often exceed the rated current. This poses certain hidden dangers to the contactors on the combined handle. Excessive current can cause overcurrent damage to the contactor cross-section, potentially leading to contactor failure. Furthermore, the internal water-cooling structure may suffer from inadequate heat dissipation, resulting in internal vaporization and excessively high internal pressure within the contactor, potentially causing cracks in weak welded sections. These issues can range from minor disruptions to normal furnace operation to major accidents such as electric furnace shutdown, serious equipment failures, and even the complete shutdown of the electric arc furnace.

[0005] The structure of the contactor was modified, but a new problem was found during operation: although the arc-surface contactor and the electrode shell are in contact with each other on an arc surface, they cannot fit tightly during use, which will cause current deviation and the weak parts of the contactor will be penetrated. To solve the above problem, we propose an arc-extinguishing structure for silicon iron copper tile contactors. Utility Model Content

[0006] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, the technical solution adopted by this utility model is as follows:

[0008] An arc-extinguishing structure for a silicon-iron-copper contactor includes an electrode shell, with multiple contactors mounted around the electrode shell. A control component is disposed between the contactors and the electrode shell. Two fixing slots are formed on the side of the contactor away from the electrode shell, and a belt pressure ring is embedded in each fixing slot. The control component includes an assembly slot, which is located on the side of the contactor closest to the electrode shell. Fixed cylinders are fixedly connected to both sides of the inner wall of the assembly slot. A rotating roller is embedded in the assembly slot, and torsion springs are sleeved at both ends of the rotating roller. The torsion springs are placed inside the fixed cylinders. A sliding groove is formed on the surface of the rotating roller, and an actuating plate is embedded in the sliding groove. One end of the actuating plate is slidably connected to the inner wall of the sliding groove, and an arc-shaped seat is fixedly connected to one end of the actuating plate. Mounting slots are formed on both sides of the arc-shaped seat, and a telescopic spring is embedded in each mounting slot.

[0009] Preferably, the plurality of contactors are evenly distributed around the axis of the electrode housing.

[0010] Preferably, a ring seat is fitted onto the surface of the electrode shell, and the ring seat is disposed at the bottom of the contact.

[0011] Preferably, the two fixed cylinders are symmetrically distributed along the wall of the assembly groove, and the two ends of the rotating roller are rotatably connected to the bottom of the inner cavity of the two fixed cylinders respectively.

[0012] Preferably, one end of the torsion spring is fixedly connected to the inner wall of the fixed cylinder, and the other end of the torsion spring is fixedly connected to the surface of the rotating roller.

[0013] Preferably, the side of the arc-shaped seat away from the contactor contacts the electrode housing.

[0014] Preferably, the end of the telescopic spring away from the mounting groove is fixedly connected to a fixing seat, and the side of the fixing seat away from the arc-shaped seat is fixedly connected to the inner wall of the mounting groove.

[0015] Preferably, the assembly slot opening is provided with a movable window to facilitate the movement of the toggle seat.

[0016] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0017] The arc-extinguishing structure of the silicon-iron-copper contactor in this utility model has an electrode shell as the core and multiple contactors evenly distributed around it. The layout is scientific and can effectively control the current in all directions, ensuring the stable operation of the system. The ring seat sleeved on the electrode shell provides support and positioning for the contactors.

[0018] The belt pressure ring is placed in a fixed groove on the side of the contactor away from the electrode shell. With its elasticity, it fits tightly against the contactor and the electrode shell, applies pressure evenly, fills various gaps, and strongly enhances the contact strength, thus curbing the risk of current deviation from the source.

[0019] The assembly slot is located on the side of the contactor near the electrode shell. Symmetrical fixed cylinders on both sides of the slot wall house rotating rollers, both ends of which are rotatably connected to the bottom of the fixed cylinders and fitted with torsion springs. The torsion springs store energy, allowing the rotating rollers to adapt to impacts to the contactor or thermal expansion and contraction of the electrode shell. An actuating plate within the rotating roller's groove connects to an arc-shaped seat, maintaining tight contact with the electrode shell and buffering changes in fit. Extension springs on both sides of the arc-shaped seat are connected to the fixed seat, providing elastic buffering in case of emergencies and preventing uneven contact. During furnace operation, when the electrode shell deforms or the equipment vibrates, a belt pressure ring works in conjunction with the control components; the former maintains tight contact, while the latter dynamically adjusts to prevent flow deviation. Moreover, this structure is simple and easy to use, requiring no special skills or tools from operators, effectively solving industry pain points, reducing safety accidents, improving furnace stability, and creating benefits for enterprises. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the contactor structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the internal structure of the contactor of this utility model.

[0023] Figure 4 This is a schematic diagram of the assembly structure of the control component and contactor of this utility model.

[0024] Figure 5 This is a schematic diagram of the control component structure of this utility model.

[0025] In the diagram: 1. Electrode housing; 101. Ring seat; 2. Contactor; 201. Fixing groove; 202. Belt pressure ring; 3. Control assembly; 301. Assembly groove; 302. Fixing cylinder; 303. Rotating roller; 304. Torsion spring; 305. Slide groove; 306. Actuating plate; 307. Arc seat; 308. Mounting groove; 309. Telescopic spring; 310. Fixing seat; 311. Moving window. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example: Figures 1-5As shown, this utility model provides an arc-extinguishing structure for a silicon-iron-copper contactor, including an electrode shell 1. Multiple contactors 2 are installed around the electrode shell 1, evenly distributed around its axis. A control component 3 is positioned between the contactors 2 and the electrode shell 1. A ring seat 101 is fitted onto the surface of the electrode shell 1, located at the bottom of the contactor 2. The arc-extinguishing structure unfolds around the electrode shell 1, with the electrode shell 1 serving as the core component and multiple contactors 2 evenly distributed around it. This layout ensures effective control and distribution of current in different locations, making the entire system operate more smoothly. The ring seat 101, fitted onto the surface of the electrode shell 1 and located at the bottom of the contactor 2, provides support and positioning, ensuring stable operation of the contactor 2.

[0028] Furthermore, two fixing slots 201 are formed on the side of the contactor 2 away from the electrode housing 1. A belt pressure ring 202 is installed within each fixing slot 201. This belt pressure ring 202 is specifically added to address the potential for current misalignment in the contactor 2. This component is installed within the fixing slot 201 on the side of the contactor 2 away from the electrode housing 1. The belt pressure ring 202, with its elastic properties, can tightly fit the contactor 2 and the electrode housing, applying uniform pressure and greatly enhancing the contact strength between them. This effectively fills any gaps that may be caused by manufacturing tolerances, installation errors, or wear during long-term operation, reducing the probability of current misalignment at its source.

[0029] The control component 3 includes an assembly groove 301, which is located on the side of the contactor 2 near the electrode housing 1. Fixed cylinders 302 are fixedly connected to both sides of the inner wall of the assembly groove 301, symmetrically distributed along the groove wall. A rotating roller 303 is housed within the assembly groove 301, with both ends of the roller 303 rotatably connected to the bottom of the inner cavities of the two fixed cylinders 302. Torsion springs 304 are sleeved at both ends of the rotating roller 303, placed inside the fixed cylinders 302. One end of the torsion spring 304 is fixedly connected to the inner wall of the fixed cylinder 302, and the other end is fixedly connected to the surface of the rotating roller 303. A sliding groove 305 is formed on the surface of the rotating roller 303, and a toggle plate is housed within the sliding groove 305. 306. One end of the actuating plate 306 is slidably connected to the inner wall of the slide groove 305. An arc-shaped seat 307 is fixedly connected to one end of the actuating plate 306. The side of the arc-shaped seat 307 away from the contactor 2 contacts the electrode shell 1. Mounting grooves 308 are provided on both sides of the arc-shaped seat 307. A telescopic spring 309 is built into the mounting groove 308. A fixed seat 310 is fixedly connected to the end of the telescopic spring 309 away from the mounting groove 308. The side of the fixed seat 310 away from the arc-shaped seat 307 is fixedly connected to the inner wall of the assembly groove 301. A movable window 311 is provided at the opening of the assembly groove 301 to facilitate the movement of the actuating seat. The two ends of the rotating roller 303 are placed at the bottom of the inner cavity of the fixed cylinder 302 and rotatably connected thereto, and are fitted with torsion springs 304. One end of the torsion spring 304 is fixed to the inner wall of the fixed cylinder 302, and the other end is connected to the surface of the rotating roller 303. Under normal conditions, the torsion spring 304 stores a certain amount of elastic potential energy. When the contactor 2 is subjected to a slight external impact or displacement due to factors such as thermal expansion and contraction of the electrode shell, the rotating roller 303 can rotate flexibly under the action of the torsion spring 304, adaptively adjust the angle, maintain good contact with the electrode shell 1, and avoid poor contact caused by hard collision.

[0030] Actuating plate 306 and arc-shaped seat 307: An actuating plate 306 is installed in the groove 305 on the surface of the rotating roller 303, and one end of the actuating plate 306 is fixedly connected to the arc-shaped seat 307. The side of the arc-shaped seat 307 away from the contactor 2 is in close contact with the electrode shell 1, playing a buffering and adaptation role on the contact surface. When the surface condition of the electrode shell 1 changes slightly, the rotating roller 303 and the actuating plate 306 drive the arc-shaped seat 307 to make fine adjustments, always maintaining a close fit.

[0031] The telescopic spring 309 and the fixed seat 310: One end of the telescopic spring 309, which is installed in the mounting slots 308 on both sides of the arc-shaped seat 307, is connected to the fixed seat 310, which is fixed to the inner wall of the assembly slot 301. The telescopic spring 309 provides additional elastic cushioning, further enhancing the flexible connection performance of the entire control assembly 3, effectively preventing the contactor 2 from instantly separating from the electrode housing 1 or causing uneven contact due to sudden situations such as jamming, thus ensuring stable contact from all directions.

[0032] During the operation of the electric furnace, current is introduced into the electrode shell 1 through contactor 2. When situations such as electrode shell deformation due to heat or equipment vibration occur, the belt pressure ring 202 first comes into play, using its own elasticity to tightly clamp contactor 2 and electrode shell, maintaining close contact. If there is a slight displacement, the rotating roller 303 rotates with the assistance of torsion spring 304, driving the arc-shaped seat 307 to buffer the displacement impact through the telescopic spring 309, dynamically adjusting the contact state to ensure uniform current flow and prevent current deviation.

[0033] Whether it's initial installation and commissioning or subsequent inspection and maintenance during operation, operators can quickly get started based on the intuitive structure without the need for special skills or professional tools. This effectively solves the long-standing problem of poor contact between contactor 2 and electrode shell in the ferrosilicon and industrial silicon industries, which causes current deviation. It significantly reduces safety accidents such as rib-stretching, improves the stability of electric furnace operation, ensures production continuity, and creates good economic and safety benefits for enterprises.

[0034] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An arc-extinguishing structure for a silicon-iron-copper contactor, characterized in that, The device includes an electrode housing, around which multiple contactors are mounted. A control component is positioned between the contactors and the electrode housing. Two fixing slots are formed on the side of each contactor away from the electrode housing, and a belt pressure ring is embedded within each fixing slot. The control component includes an assembly slot located on the side of the contactor closest to the electrode housing. Fixing cylinders are fixedly connected to both sides of the inner wall of the assembly slot. A rotating roller is embedded within the assembly slot, and torsion springs are sleeved at both ends of the rotating roller, with the torsion springs placed inside the fixing cylinders. A sliding groove is formed on the surface of the rotating roller, and an actuating plate is embedded within the sliding groove. One end of the actuating plate is slidably connected to the inner wall of the sliding groove, and an arc-shaped seat is fixedly connected to one end of the actuating plate. Mounting slots are formed on both sides of the arc-shaped seat, and a telescopic spring is embedded within each mounting slot.

2. The arc-extinguishing structure of the silicon-iron-copper contactor according to claim 1, characterized in that, The multiple contactors are evenly distributed around the axis of the electrode housing.

3. The arc-extinguishing structure of the silicon-iron-copper contactor according to claim 1, characterized in that, A ring seat is fitted onto the surface of the electrode shell, and the ring seat is located at the bottom of the contact.

4. The arc-extinguishing structure of the silicon-iron-copper contactor according to claim 1, characterized in that, The two fixed cylinders are symmetrically distributed along the wall of the assembly groove, and the two ends of the rotating roller are rotatably connected to the bottom of the inner cavity of the two fixed cylinders respectively.

5. The arc-extinguishing structure of the silicon-iron-copper contactor according to claim 1, characterized in that, One end of the torsion spring is fixedly connected to the inner wall of the fixed cylinder, and the other end of the torsion spring is fixedly connected to the surface of the rotating roller.

6. The arc-extinguishing structure of the silicon-iron-copper contactor according to claim 1, characterized in that, The side of the arc-shaped seat away from the contactor contacts the electrode shell.

7. The arc-extinguishing structure of the silicon-iron-copper contactor according to claim 1, characterized in that, The end of the telescopic spring away from the mounting groove is fixedly connected to a fixing seat, and the side of the fixing seat away from the arc-shaped seat is fixedly connected to the inner wall of the mounting groove.

8. The arc-extinguishing structure of the silicon-iron-copper contactor according to claim 1, characterized in that, The assembly slot opening is provided with a movable window to facilitate the movement of the toggle seat.

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