Submerged arc furnace electrode lifting system for industrial silicon production

Abstract

The submerged arc furnace electrode lifting system for industrial silicon production comprises a supporting ring, a mounting seat is mounted on the supporting ring, a holding device is further mounted on the peripheral side wall of the supporting ring, and the holding device comprises a plurality of holding oil cylinders mounted on the peripheral side wall of the supporting ring; the tail end of the enclasping oil cylinder extends into the supporting ring, and the tail end of the enclasping oil cylinder is connected with a plurality of enclasping tiles through a connecting seat; the connecting base comprises a first connecting base body installed on the holding tile and a second connecting base body installed on the holding oil cylinder, and a pressure sensor is installed between the first connecting base body and the second connecting base body. According to the electrode clamping device, each clamping unit can be controlled to uniformly clamp an electrode in an array type clamping mode, so that the slipping phenomenon in the pressing and releasing process can be effectively prevented, the structural safety of the electrode can be effectively protected, and the electrode pressing and releasing reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of industrial silicon production technology, and in particular to an electrode lifting system for an electric arc furnace used in industrial silicon production. Background Technology

[0002] During the smelting process in an electric arc furnace, due to the large heat loss of the electrodes, after the furnace has been running for a period of time, the working length of the electrodes falls below the lower limit, affecting the normal operation of the furnace. Therefore, it is necessary to lower the electrodes. Thus, electrode pressing is one of the important steps in the operation of an electric arc furnace, which is mainly completed by hydraulic cylinders and corresponding clamping equipment.

[0003] The lowering of the electric arc furnace has strict dimensional requirements, so multiple sets of hydraulic cylinders are needed to work together to hold and lower the electrodes. During the lowering process, the main points of attention are to accurately monitor the lowering distance, avoid excessive clamping force that could break the electrodes, and also avoid slippage during clamping. To address these issues, we have proposed an electrode lifting system for an electric arc furnace used in industrial silicon production. Utility Model Content

[0004] This application provides an electrode lifting system for an electric arc furnace used in industrial silicon production, which solves the problem that the electrodes are prone to slippage or damage during the lowering process.

[0005] This application provides an electrode lifting system for an electric arc furnace used in industrial silicon production, including a support ring, on which a mounting seat is installed. A clamping device is also installed on a circumferential side wall of the support ring. The clamping device includes a plurality of clamping cylinders installed on a circumferential side wall of the support ring. The ends of the clamping cylinders extend into the support ring, and the ends of the clamping cylinders are connected to a plurality of clamping bearings through a connecting seat.

[0006] The connecting seat includes a first connecting seat mounted on the bearing and a second connecting seat mounted on the clamping cylinder, and a pressure sensor is installed between the first connecting seat and the second connecting seat.

[0007] Preferably, two of the bearings are mounted on one of the second connecting seats.

[0008] Preferably, there are six clamping devices, evenly distributed on the support ring.

[0009] Preferably, the second connecting seat is provided with a connecting groove, and the first connecting seat is equipped with a connecting block corresponding to the connecting groove. The first connecting seat is installed on the connecting groove through the connecting block. A mounting screw hole is provided on one side of the connecting groove. The pressure sensor is located in the mounting screw hole and abuts against the connecting block. A sensor adjusting bolt is also provided in the mounting screw hole.

[0010] Preferably, a limiting groove is provided on each of the opposite sidewalls of the connecting groove, and a positioning groove is also provided on one side of the limiting groove. A limiting block is provided on the connecting block, and the limiting block corresponds to the limiting groove.

[0011] Preferably, a slot is provided on one side of the connecting block, and a locking block is provided on the first connecting seat, with the locking block located in the slot.

[0012] Preferably, the connecting block is provided with a fixing ear on one side of the slot, the block is provided with a limiting hole, and a bolt is provided in the fixing ear, the bolt passing through the limiting hole.

[0013] As can be seen from the above technical solutions, this application provides an electrode lifting system for an electric arc furnace used in industrial silicon production. This application uses multiple clamping devices to hold the electrode, and multiple clamping cylinders. Each clamping cylinder clamps the electrode through a clamping pad. At the same time, a pressure sensor detects the pressure on each clamping pad to avoid insufficient pressure from failing to clamp the electrode, or excessive pressure from damaging the electrode. This ensures that the electrode is evenly stressed and avoids pressure damage while clamping the electrode.

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

[0015] 1. By setting multiple clamping devices, a multi-angle clamping array is formed around the electrode, so that the electrode is clamped by multiple modules, thereby improving the uniformity of the electrode during clamping.

[0016] 2. By setting multiple clamping pads, the number of clamping modules in the vertical direction is further increased, so that multiple clamping modules are set in both the radial and axial directions. This not only ensures high uniformity of force distribution, but also increases the clamping area, thereby avoiding electrode slippage during the pressing and releasing process.

[0017] 3. By setting up pressure sensors, the force on each force-bearing unit can be detected, so that the pressure information can be used to release the force when the overall clamping is normal, thereby improving the reliability of the release process.

[0018] In summary, this application can effectively prevent slippage during the pressing and releasing process by using an array-type clamping method and controlling each clamping unit to clamp the electrode evenly. This not only effectively prevents slippage during the pressing and releasing process but also effectively protects the structural safety of the electrode, thereby improving the reliability of electrode pressing and releasing. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this application, the drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of the electrode lifting system for an industrial silicon production submerged arc furnace proposed in this utility model.

[0021] Figure 2 This is a schematic diagram of the clamping device structure of an electrode lifting system for an industrial silicon production submerged arc furnace proposed in this utility model.

[0022] Figure 3 This is an enlarged view of point A of the electrode lifting system of a submerged arc furnace for industrial silicon production proposed in this utility model.

[0023] In the diagram: 1 Support ring, 2 Mounting seat, 3 Clamping cylinder, 4 Clamping bearing, 5 First connecting seat, 51 Clamping block, 52 Limiting hole, 6 Second connecting seat, 61 Connecting groove, 62 Limiting groove, 63 Positioning groove, 64 Mounting screw hole, 7 Connecting block, 71 Clamping groove, 72 Limiting block, 73 Fixing ear, 8 Sensor adjusting bolt. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0025] See Figure 1-3An electrode lifting system for an industrial silicon production submerged arc furnace includes a support ring 1, on which a mounting base 2 is installed. The mounting base 2 is connected to a pressure-release cylinder in the entire electrode lifting system. Six clamping devices are also installed on the circumferential sidewall of the support ring 1, evenly distributed on the support ring 1. This means that the electrode is clamped in the circumferential direction by six clamping devices, achieving a radial six-array-type clamping, resulting in more stable and uniform clamping. Furthermore, two clamping bearings 4 are installed on a second connecting base 6. In the axial direction, two rings are encircled to further increase the clamping area of ​​the electrode. The clamping device includes multiple clamping cylinders 3 installed on the side wall of the support ring 1. The clamping cylinders 3 are evenly distributed on the support ring 1. The ends of the clamping cylinders 3 extend into the support ring 1, and the ends of the clamping cylinders 3 are connected to multiple clamping pads 4 through connecting seats. The clamping pads 4 are used to clamp the electrode. Under the condition that the clamping area is constant, the smaller the area of ​​each individual pad, the higher the clamping uniformity and the higher the clamping stability.

[0026] The connecting seat includes a first connecting seat 5 installed on the bearing 4 and a second connecting seat 6 installed on the clamping cylinder 3. The first connecting seat 5 and the second connecting seat 6 are movably connected. A pressure sensor is installed between the first connecting seat 5 and the second connecting seat 6. Since each clamping cylinder 3 is equipped with two bearings 4, the two bearings 4 are monitored separately to avoid pressure imbalance.

[0027] In this invention, a connecting groove 61 is provided on the second connecting seat 6, and a connecting block 7 corresponding to the connecting groove 61 is installed on the first connecting seat 5. The first connecting seat 5 is installed on the connecting groove 61 through the connecting block 7, and the connecting block 7 can move within the connecting groove 61. A mounting screw hole 64 is provided on one side of the connecting groove 61, and the pressure sensor is located in the mounting screw hole 64 and abuts against the connecting block 7. When clamping the electrode, the force of the clamping cylinder 3 on the second connecting seat 6 is applied to the first connecting seat 5 through the pressure sensor. The pressure on each clamping pad 4 can be observed through the pressure of the pressure sensor. Furthermore, when the pressure on the same clamping cylinder 3 is uneven, a sensor adjusting bolt 8 is also provided in the mounting screw hole 64. Rotating the sensor adjusting bolt 8 adjusts the position of the sensor adjusting bolt 8, changes the position of the pressure sensor, and thus changes the force on the clamping pad 4. During the lowering process, only after the force adjustment is completed and the clamping is completed can the fixed clamping structure in the system be released, the pressure release cylinder be activated, and the application be pressed down to achieve the purpose of lowering the electrode.

[0028] In this utility model, limiting grooves 62 are provided on the opposite side walls of the connecting groove 61. One side of the limiting groove 62 extends to the end of the second connecting seat 6. A positioning groove 63 is also provided on one side of the limiting groove 62. The positioning groove 63 extends outward on one side of the limiting groove 62. A limiting block 72 is provided on the connecting block 7. The limiting block 72 corresponds to the limiting groove 62. During installation, the limiting block 72 on the connecting block 7 is aligned with the limiting groove 62, and then the connecting block 7 is inserted downward until the limiting block 72 reaches the positioning groove 63. Then, the sensor adjusting bolt 8 is turned so that the pressure sensor abuts against the connecting block 7, so that the limiting block 72 enters the positioning groove 63 to complete the locking, and the connecting block 7 is installed on the second connecting seat 6.

[0029] In this utility model, a slot 71 is provided on one side of the connecting block 7, and a locking block 51 is provided on the first connecting seat 5. The locking block 51 is located in the slot 71. The bearing 4 is installed on the connecting block 7 through the locking block 51. Furthermore, a fixing ear 73 is provided on one side of the connecting block 7 located in the slot 71. A limit hole 52 is provided on the locking block 51. A bolt is provided in the fixing ear 73. The bolt passes through the limit hole 52. When the bearing is installed, the bolt is tightened to complete the installation of the bearing 4. In this application, the installation order of the connecting block 7 and the bearing 4 is not important. After the bearing 4 is installed, it can move in the running direction of the clamping cylinder 3 within a limited range of motion, so that when under force, it can accurately act on the pressure sensor to achieve precise pressure positioning.

[0030] As can be seen from the above technical solution, when the lower electrode is needed, first check whether each clamping pad 4 can move in the running direction of the clamping cylinder 3. Then, after inputting clamping pressure into multiple clamping cylinders 3, multiple clamping cylinders 3 are started simultaneously. Each clamping cylinder 3 clamps through two clamping pads 4. At the same time, the pressure sensor detects the pressure on each clamping pad 4. When there is a large pressure difference between the two clamping pads 4 on the same clamping cylinder 3, the corresponding sensor adjusting bolt 8 is adjusted to make the two clamping pads 4 evenly stressed. This avoids the clamping effect being too small for each clamping pad 4, or the electrode being damaged due to excessive pressure. This ensures that the electrode is evenly stressed and avoids pressure damage while clamping. Then, the fixing clamping device for fixing the electrode is opened. Finally, the pressure release cylinder in the system is started. Through the action of the mounting seat 2, the position of the electrode is adjusted in this application. After the adjustment is completed, the electrode is fixed by the fixing clamping device for fixing the electrode, and then the clamping of the electrode is released.

[0031] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0032] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. An electrode lifting system for an industrial silicon production submerged arc furnace, comprising a support ring (1), a mounting base (2) mounted on the support ring (1), and a clamping device mounted on the circumferential side wall of the support ring (1), characterized in that: The clamping device includes a plurality of clamping cylinders (3) installed on the side wall of the support ring (1). The end of the clamping cylinder (3) extends into the support ring (1), and the end of the clamping cylinder (3) is connected to a plurality of clamping pads (4) through a connecting seat. The connecting seat includes a first connecting seat (5) installed on the bearing (4) and a second connecting seat (6) installed on the clamping cylinder (3), and a pressure sensor is installed between the first connecting seat (5) and the second connecting seat (6).

2. The industrial silicon production with a submerged arc furnace electrode lifting system according to claim 1, characterized in that, Two of the aforementioned bearings (4) are mounted on one of the second connecting seats (6).

3. The industrial silicon production with a submerged arc furnace electrode lifting system according to claim 2, characterized in that, The clamping device consists of six parts, which are evenly distributed on the support ring (1).

4. The industrial silicon production with a submerged arc furnace electrode lifting system according to claim 3, characterized in that, The second connecting seat (6) is provided with a connecting groove (61), and the first connecting seat (5) is provided with a connecting block (7) corresponding to the connecting groove (61). The first connecting seat (5) is installed on the connecting groove (61) through the connecting block (7). A mounting screw hole (64) is provided on one side of the connecting groove (61). The pressure sensor is located in the mounting screw hole (64) and the pressure sensor abuts against the connecting block (7). A sensor adjusting bolt (8) is also provided in the mounting screw hole (64).

5. The electrode lifting system for an industrial silicon production submerged arc furnace according to claim 4, characterized in that, Limiting grooves (62) are provided on the opposite side walls of the connecting groove (61), and a positioning groove (63) is also provided on one side of the limiting groove (62). A limiting block (72) is provided on the connecting block (7), and the limiting block (72) corresponds to the limiting groove (62).

6. The industrial silicon production with a submerged arc furnace electrode lifting system according to claim 5, characterized in that, A slot (71) is provided on one side of the connecting block (7), and a block (51) is provided on the first connecting seat (5), with the block (51) located in the slot (71).

7. The industrial silicon production with a submerged arc furnace electrode lifting system according to claim 6, characterized in that, The connecting block (7) is provided with a fixing ear (73) on one side of the slot (71), and a limit hole (52) is provided on the slot (51). A bolt is provided in the fixing ear (73) and the bolt passes through the limit hole (52).

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