Electrode cooling device for an electric arc furnace

Abstract

The utility model discloses an electrode cooling device for submerged arc furnace, including elevating platform, holder and electrode, the holder fixed connection is in the right side of elevating platform, the inner wall of electrode and holder is fixedly connected, the inner wall of holder is equipped with cooling mechanism. The utility model discloses through setting cooling mechanism, through setting the cooling mechanism including annular groove, fin, cylinder, vane no.

Description

Technical Field

[0001] This utility model relates to the field of electrode cooling technology, specifically an electrode cooling device for a submerged arc furnace. Background Technology

[0002] Submerged arc furnaces are mainly used for smelting ores. They are also frequently used to produce ferroalloys such as ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, and ferrosilicon-manganese alloys. The electrodes are fed with three-phase alternating current or single-phase direct current, which conducts electricity into the furnace to form an electric arc that generates high temperatures to promote smelting and melting. Due to the long-term use of the electrodes, they need to be cooled down.

[0003] Existing examples include Chinese utility model patent CN222881689U, which discloses an electrode cooling device for a submerged arc furnace. This device includes multiple clamps installed at the front end of a lifting platform for fixing the electrodes. A ring-shaped cooling component, which can rotate under water pressure, is installed below each clamp. A water supply component is connected to one side of the cooling component, and the water supply component is fixed to the bottom of the lifting platform via a bracket. This utility model, by installing a ring-shaped cooling component below the clamps, fundamentally solves a series of problems caused by clogged water spray holes, better preventing cracks and deformation of the electrodes due to cooling, and thus preventing safety accidents and economic losses for enterprises.

[0004] The above solution has obvious defects. The cooling method of directly spraying water onto the electrode surface is prone to cracking due to thermal expansion and contraction when the high-temperature electrode comes into direct contact with cold water. At the same time, a large amount of water vapor will be generated during the spraying process, and furnace ash will be raised, which will affect the operator's vision and pose a safety hazard. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide an electrode cooling device for a submerged arc furnace, which has the advantage of rapidly cooling the electrode and solves the obvious defects of the above-mentioned solutions. The cooling method of directly spraying water onto the electrode surface is prone to cracking due to thermal expansion and contraction when the high-temperature electrode comes into direct contact with cold water. At the same time, a large amount of water vapor is generated during the spraying process, and furnace ash is stirred up, which affects the operator's vision and poses a safety hazard.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a lifting platform, a gripper, and an electrode. The gripper is fixedly connected to the right side of the lifting platform. The electrode is fixedly connected to the inner wall of the gripper. A cooling mechanism is provided on the inner wall of the gripper. The cooling mechanism includes an annular groove, which is located on the right side of the inner wall of the gripper. A fin is fixedly connected to the inner wall of the annular groove. A cylinder is fixedly connected to both sides of the inner wall of the annular groove. A blade is fixedly connected to the bottom of the inner wall of the cylinder. A ring is connected to the inner wall of the blade. An arc-shaped piece is fixedly connected to the bottom of the surface of the ring.

[0007] As a preferred embodiment of this utility model, a bearing is fixedly connected to both sides of the cylindrical surface, the outer ring of the bearing is fixedly connected to the inner wall of the annular groove, and a blade is fixedly connected to the top of the inner wall of the cylindrical surface.

[0008] In a preferred embodiment of this invention, a second ring is fixedly connected to the inner wall of the second blade, an arc-shaped piece is fixedly connected to the surface of the second ring, and a second bearing is fixedly connected to the inner walls of both the first and second rings, with the inner ring of the second bearing being fixedly connected to the inner wall of the annular groove.

[0009] As a preferred embodiment of this invention, the inner wall of the cylinder is fixedly connected with a threaded strip, and a plurality of threaded strips are provided, which are distributed at equal intervals.

[0010] As a preferred embodiment of this invention, a toothed ring is fixedly connected to the surface of the cylinder, and a transmission groove is provided on the right side of the inner wall of the annular groove.

[0011] As a preferred embodiment of this invention, a motor is fixedly connected to the top of the inner wall of the transmission groove, and a gear is fixedly connected to the output end of the motor, with one side of the gear meshing with a gear ring.

[0012] As a preferred embodiment of this invention, a water inlet pipe is fixedly connected to the bottom of the left side of the inner wall of the annular groove, and a water outlet pipe is fixedly connected to the top of the left side of the inner wall of the annular groove.

[0013] As a preferred embodiment of this invention, a temperature control device is fixedly connected to the right side of the top of the clamp.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model achieves indirect cooling of the electrode by setting a cooling mechanism, which includes an annular groove, fins, a cylinder, a blade, a ring, and an arc-shaped plate on the inner wall of the clamp. This avoids the cracking problem caused by the coolant directly contacting the electrode. The fins increase the heat exchange area and improve the cooling efficiency. The cooperation of the arc-shaped plate and the blade can promote the flow and uniform distribution of the coolant, ensuring that the cooling effect is consistent in all areas of the annular groove. This invention has the advantage of being able to cool the electrode quickly.

[0016] 2. This utility model, by setting bearing one and blade two, provides support and limit for the cylinder, reduces the friction between the cylinder and the inner wall of the annular groove when the cylinder rotates, reduces equipment wear, and extends service life. The addition of blade two further enhances the coolant delivery capacity, accelerates the circulation of coolant in the annular groove, and improves the cooling speed.

[0017] 3. By setting up a second circular ring, a second arc-shaped plate, and a second bearing, the cooperation between the second circular ring and the second arc-shaped plate, together with the first circular ring and the first arc-shaped plate, enhances the pushing and guiding effect on the coolant, making the coolant flow more orderly. The second bearing supports the first and second circular rings, reducing the frictional resistance during their rotation, ensuring the smooth operation of each component, and improving the stability of the overall device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the clamp of this utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional exploded cylindrical structure of this utility model;

[0021] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Lifting platform; 2. Clamping device; 3. Electrode; 4. Cooling mechanism; 41. Annular groove; 42. Fin; 43. Cylinder; 44. Blade 1; 45. Circular ring 1; 46. Arc-shaped plate 1; 5. Bearing 1; 6. Blade 2; 7. Circular ring 2; 8. Arc-shaped plate 2; 9. Bearing 2; 10. Threaded strip; 11. Gear ring; 12. Transmission groove; 13. Motor; 14. Gear; 15. Inlet pipe; 16. Outlet pipe; 17. Temperature control device. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 4 As shown, the present invention includes a lifting platform 1, a clamp 2, and an electrode 3. The clamp 2 is fixedly connected to the right side of the lifting platform 1, and the electrode 3 is fixedly connected to the inner wall of the clamp 2. The inner wall of the clamp 2 is provided with a cooling mechanism 4. The cooling mechanism 4 includes an annular groove 41, which is located on the right side of the inner wall of the clamp 2. A fin 42 is fixedly connected to the inner wall of the annular groove 41. A cylinder 43 is fixedly connected to both sides of the inner wall of the annular groove 41. A blade 44 is fixedly connected to the bottom of the inner wall of the cylinder 43. A ring 45 is connected to the inner wall of the blade 44. An arc-shaped piece 46 is fixedly connected to the bottom of the surface of the ring 45.

[0025] refer to Figure 2 Bearing 5 is fixedly connected to both sides of the surface of cylinder 43. The outer ring of bearing 5 is fixedly connected to the inner wall of annular groove 41. Blade 6 is fixedly connected to the top of the inner wall of cylinder 43.

[0026] As a technical optimization of this utility model, by setting bearing 5 and blade 6, the setting of bearing 5 plays a supporting and limiting role for cylinder 43, reducing the friction between cylinder 43 and the inner wall of annular groove 41 when cylinder 43 rotates, reducing equipment wear and extending service life. The addition of blade 6 further enhances the coolant delivery capacity, accelerates the circulation of coolant in annular groove 41, and improves the cooling speed.

[0027] refer to Figure 4 A ring 7 is fixedly connected to the inner wall of blade 2 6, and an arc-shaped piece 2 8 is fixedly connected to the surface of ring 2 7. A bearing 2 9 is fixedly connected to both the inner wall of ring 1 45 and the inner wall of ring 2 7. The inner ring of bearing 2 9 is fixedly connected to the inner wall of annular groove 41.

[0028] As a technical optimization of this utility model, by setting up a second ring 7, an arc-shaped plate 8, and a second bearing 9, the cooperation of the second ring 7 and the arc-shaped plate 8 with the first ring 45 and the arc-shaped plate 46 forms a synergistic effect, which enhances the pushing and guiding effect on the coolant, making the coolant flow more orderly. The second bearing 9 supports the first ring 45 and the second ring 7, reducing the frictional resistance when they rotate, ensuring the smooth operation of each component, and improving the stability of the overall device.

[0029] refer to Figure 3The inner wall of the cylinder 43 is fixedly connected with a threaded bar 10. Several threaded bars 10 are provided and are distributed at equal intervals.

[0030] As a technical optimization of this utility model, by setting threaded bars 10, several equally spaced threaded bars 10 can push the coolant at the edge of the annular groove 41 inward when the cylinder 43 rotates, so that the coolant in the edge area can also quickly contact the fins 42, fully absorb heat, avoid the problem of insufficient local cooling, and further improve the uniformity and efficiency of cooling.

[0031] refer to Figure 3 A toothed ring 11 is fixedly connected to the surface of the cylinder 43, and a transmission groove 12 is provided on the right side of the inner wall of the annular groove 41.

[0032] As a technical optimization of this utility model, by setting the toothed ring 11 and the transmission groove 12, the cooperation between the toothed ring 11 and the transmission groove 12 provides a transmission basis for the rotation of the cylinder 43, which facilitates the subsequent rotation of the cylinder 43 by external power, provides structural support for adjusting the flow rate of the coolant, and makes the cooling device more adaptable.

[0033] refer to Figure 3 A motor 13 is fixedly connected to the top of the inner wall of the transmission groove 12, and a gear 14 is fixedly connected to the output end of the motor 13. One side of the gear 14 meshes with the gear ring 11.

[0034] As a technical optimization of this utility model, by setting a motor 13 and a gear 14, the motor 13 drives the cylinder 43 to rotate through the meshing of the gear 14 and the gear ring 11, thereby realizing active control of the coolant flow speed. The speed can be adjusted according to the actual cooling needs to flexibly cope with different temperature conditions. The gear 14 transmission method has high transmission efficiency and good stability, ensuring the controllability and accuracy of the cylinder 43 rotation speed.

[0035] refer to Figure 2 An inlet pipe 15 is fixedly connected to the bottom left side of the inner wall of the annular groove 41, and an outlet pipe 16 is fixedly connected to the top left side of the inner wall of the annular groove 41.

[0036] As a technical optimization of this utility model, by setting an inlet pipe 15 and an outlet pipe 16, which are respectively located at the bottom and top of the left side of the annular groove 41, a circulation path for the coolant is formed, ensuring that the low-temperature coolant can continuously enter and the high-temperature coolant can be discharged in time, thus ensuring the continuity of the cooling process. The bottom inlet and top outlet design conforms to the law of natural convection of coolant, which is conducive to the transfer and dissipation of heat.

[0037] refer to Figure 2 A temperature control device 17 is fixedly connected to the right side of the top of the clamp 2.

[0038] As a technical optimization of this utility model, by setting a temperature control device 17, the temperature control device 17 can detect the temperature of the coolant at the top of the annular groove 41 in real time, providing temperature feedback for the operation of the cooling system. This allows operators or automatic control systems to adjust parameters such as the speed of the motor 13 according to the temperature, realizing intelligent control of the cooling process. It can detect abnormal cooling conditions in time, avoid overheating of the electrode 3 due to insufficient cooling, and improve the safety of equipment operation.

[0039] The working principle and usage process of this utility model: The low-temperature coolant enters the annular groove 41 through the water inlet pipe 15 at the bottom left side of the annular groove 41. It first contacts the fins 42 on the inner wall of the annular groove 41. The fins 42 absorb the heat conducted by the electrode 3 through the clamp 2, and reduce the temperature of the electrode 3 through heat exchange. After absorbing heat, the high-temperature coolant is discharged from the outlet pipe 16 at the top left side of the annular groove 41, completing the basic cooling cycle. When the coolant enters, it pushes the arc-shaped plate 46 to rotate, which in turn drives the ring 45 and blade 44 to rotate. Blade 44 transports the coolant from the bottom upwards, while the arc-shaped plate 46 ensures that the coolant is evenly distributed at the bottom of the annular groove 41, avoiding local accumulation. The cylinder 43 rotates synchronously with the blade 44, and the blade 6 on its inner wall further draws the coolant upwards, which, together with the arc-shaped plate 8, guides the coolant outwards, accelerating the flow of the high-temperature coolant to the outlet pipe 16 and improving the circulation efficiency. The temperature control device 17 at the top of the clamp 2 monitors the temperature of the coolant at the top of the annular groove 41 in real time. When the temperature exceeds the set threshold, the motor 13 in the transmission groove 12 is started. The motor 13, through the gear 14, interacts with the gear ring 1 on the surface of the cylinder 43. 1. Engagement drives the cylinder 43 to rotate faster: On the one hand, the rotational speed of blade 1 44 and blade 2 6 increases, enhancing the coolant delivery capacity; on the other hand, the threaded strip 10 on the inner wall of the cylinder 43 pushes the coolant at the edge of the annular groove 41 inward as the rotational speed increases, ensuring that all fins 42 are in full contact with the coolant, enhancing the heat exchange effect. The bearing 1 5 on both sides of the cylinder 43 and the bearing 2 9 on the inner wall of the annular groove 45 and the annular groove 2 7 respectively support and reduce drag on the rotating parts, reducing mechanical wear while ensuring the stable operation of the coolant circulation process, avoiding the impact of vibration on the cooling effect or equipment life. Through the above mechanism, the device achieves non-direct contact cooling between the coolant and the electrode 3, avoiding damage to the electrode 3 caused by thermal shock, and ensuring a high-efficiency and uniform cooling effect through active adjustment and structural optimization.

[0040] In summary, this electrode cooling device for a submerged arc furnace, through the cooling mechanism 4, which includes an annular groove 41, fins 42, a cylinder 43, blades 44, a ring 45, and an arc-shaped plate 46 on the inner wall of the holder 2, achieves indirect cooling of the electrode 3, avoiding cracking caused by direct contact of the coolant with the electrode 3. The fins 42 increase the heat exchange area and improve the cooling efficiency. The cooperation of the arc-shaped plate 46 and the blades 44 can promote the flow and uniform distribution of the coolant, ensuring consistent cooling effect in all areas within the annular groove 41.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electrode cooling device for a submerged arc furnace, comprising a lifting platform (1), a clamp (2), and an electrode (3), characterized in that: The clamp (2) is fixedly connected to the right side of the lifting platform (1). The electrode (3) is fixedly connected to the inner wall of the clamp (2). The inner wall of the clamp (2) is provided with a cooling mechanism (4). The cooling mechanism (4) includes an annular groove (41). The annular groove (41) is opened on the right side of the inner wall of the clamp (2). The inner wall of the annular groove (41) is fixedly connected with a fin (42). Both sides of the inner wall of the annular groove (41) are fixedly connected with cylinders (43). The bottom of the inner wall of the cylinder (43) is fixedly connected with a blade (44). The inner wall of the blade (44) is connected with a ring (45). The bottom of the surface of the ring (45) is fixedly connected with an arc-shaped piece (46).

2. The electrode cooling device for a submerged arc furnace according to claim 1, characterized in that: Bearing 1 (5) is fixedly connected to both sides of the surface of the cylinder (43). The outer ring of the bearing 1 (5) is fixedly connected to the inner wall of the annular groove (41). Blade 2 (6) is fixedly connected to the top of the inner wall of the cylinder (43).

3. The electrode cooling device for a submerged arc furnace according to claim 2, characterized in that: The inner wall of the blade two (6) is fixedly connected to a ring two (7), and the surface of the ring two (7) is fixedly connected to an arc-shaped piece two (8). The inner walls of the ring one (45) and the ring two (7) are both fixedly connected to a bearing two (9), and the inner ring of the bearing two (9) is fixedly connected to the inner wall of the annular groove (41).

4. The electrode cooling device for a submerged arc furnace according to claim 1, characterized in that: The inner wall of the cylinder (43) is fixedly connected with a threaded bar (10), and there are several threaded bars (10) arranged in a equidistant manner.

5. The electrode cooling device for a submerged arc furnace according to claim 1, characterized in that: A toothed ring (11) is fixedly connected to the surface of the cylinder (43), and a transmission groove (12) is provided on the right side of the inner wall of the annular groove (41).

6. The electrode cooling device for a submerged arc furnace according to claim 5, characterized in that: A motor (13) is fixedly connected to the top of the inner wall of the transmission groove (12), and a gear (14) is fixedly connected to the output end of the motor (13). One side of the gear (14) meshes with the gear ring (11).

7. The electrode cooling device for a submerged arc furnace according to claim 1, characterized in that: A water inlet pipe (15) is fixedly connected to the bottom of the left side of the inner wall of the annular groove (41), and a water outlet pipe (16) is fixedly connected to the top of the left side of the inner wall of the annular groove (41).

8. The electrode cooling device for a submerged arc furnace according to claim 1, characterized in that: A temperature control device (17) is fixedly connected to the right side of the top of the clamp (2).

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