Electrode top block protection device for refining furnace
By designing an electrode top block protection device in the refining furnace, including a lifting bracket, a fixing ring plate, a cover protection mechanism, an installation frame, a circulation cooling component and a gas cooling component, the damage to the electrode top block is solved by the steel melt. , effectively protect and cool down the electrode top block.
Patent Information
- Application Number
- CN202411861287.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-02-18
AI Technical Summary
In a refining furnace, the steel melt may come into contact with the electrode top block, causing damage to the electrode top block.
An electrode top block protection device including a lifting bracket, a fixing ring plate, a cover protection mechanism, a mounting frame, a circulation cooling assembly and a gas cooling assembly are designed. The device provides cooling and protection through a flexible protective layer and a screw conveying pipeline to prevent the steel melt from contacting the electrode top block directly.
It effectively prevents damage to the electrode top block by the steel melt, ensures that the electrode top block remains stable in a high-temperature environment, avoids overheating and deformation, and improves the cooling efficiency of the electrode and electrode top block.
Smart Images
Figure CN119464617A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of electrode top block protection, and in particular to a refining furnace electrode top block protection device. Background Art
[0002] The refining furnace is a prior art equipment used for re-smelting of steel materials in the prior art. It is used for final deoxidation and alloying of molten steel to facilitate subsequent casting and molding of the molten steel. During the smelting process of the steel materials, the refining furnace will extend the electrodes into the refining furnace to contact the steel materials, and heat the steel materials through the electrodes. The functions of the electrodes in the refining furnace include ionizing the air and heating the molten steel, thereby increasing the smelting speed of the steel materials in the refining furnace. An electrode top block is provided on the outside of the electrode, and the electrode top block is also called an electrode chuck. The electrode top block is in contact with the electrode. The main functions of the electrode top block include fixing the electrode and supplying power to the electrode. It is a component that matches the electrode in the refining furnace.
[0003] However, since the electrode top block is extended into the interior of the refining furnace together with the electrode during use, it will also be affected by the high temperature inside the refining furnace during use, and the electrode will overheat during use. Therefore, the electrode top block needs to be cooled during use. However, during the steel smelting process, the steel will spatter randomly in the refining furnace, which can easily cause damage to the electrode top block. The molten steel is in direct contact with the electrode top block, which can easily cause damage to the electrode top block. Summary of the invention
[0004] The present invention provides a refining furnace electrode top block protection device, which solves the problem in the related art that during the use of the refining furnace, molten steel may come into contact with the electrode top block during the heating and melting process, thereby causing damage to the electrode top block.
[0005] The technical solution of the present invention is as follows: A refining furnace electrode top block protection device comprises a lifting bracket, on which a fixed ring plate is longitudinally movable, and further comprises: A covering and protecting mechanism, wherein the covering and protecting mechanism is disposed on both upper and lower sides of the fixed ring plate, and an opening is disposed in the middle of the covering and protecting mechanism; A mounting frame, the mounting frame being arranged on the outside of the electrode top block, and the mounting frame being arranged between the fixing ring plate and the two covering and protecting mechanisms; A circulating cooling component, which is arranged between the two covering and protecting mechanisms; A gas cooling component is arranged on the covering and protecting mechanism located on the upper side.
[0006] In order to protect the electrode top block, further, the covering protection mechanism includes a flexible protective layer and a flexible cover layer, the flexible protective layer is slidably arranged on the fixed ring plate, a plurality of through holes are opened on the circumference of the flexible protective layer, a traction reset component is arranged between each of the through holes and the fixed ring plate, wherein the opening is opened in the middle of the flexible protective layer, a closed engaging component is arranged between the opening and the mounting frame, the flexible cover layer is fixedly connected to the side of the flexible protective layer close to the fixed ring plate, the outer wall of the flexible cover layer is fixedly connected to the fixed ring plate, and an installation chamber is formed between the inner wall of the flexible cover layer and the flexible protective layer.
[0007] In order to keep the movement of the flexible protective layer stable, it further includes a mounting ring plate, a sliding member and a flexible sliding bar, wherein a plurality of mounting brackets are fixedly connected to the fixed ring plate, the mounting ring plate is fixedly connected between the plurality of mounting brackets, the mounting bracket is provided with a mounting groove, the number of the mounting grooves is consistent with the number of the through holes, the traction reset assembly is arranged between the corresponding mounting grooves and the through holes, a plurality of sliding members are fixedly connected circumferentially on the mounting ring plate, the flexible sliding bar is arranged on the flexible protective layer, the number of the flexible sliding bars is consistent with the number of the sliding members, and the flexible sliding bar is slidably arranged on the corresponding sliding member.
[0008] In order to maintain the tension of the flexible protective layer during movement and to facilitate the reset of the flexible protective layer, on the basis of the above-mentioned scheme, the traction reset assembly includes a rotating cylinder, a winding cylinder and a traction rope, the rotating cylinder is fixedly connected in the mounting groove, the winding cylinder is rotatably connected to the rotating cylinder through a rotating shaft, a clockwork spring is arranged between the rotating shaft and the inner wall of the rotating cylinder, the traction rope is wound around the rotating cylinder, and the other end of the traction rope is fixedly connected to a pull ring, and the pull ring contacts the corresponding inner wall of the through hole.
[0009] In order to keep the flexible protective layer and the mounting frame closed, on the basis of the above-mentioned scheme, further, the closed engaging assembly includes a circular ring plate and a closing piece, the circular ring plate is fixedly connected to the opening, a rectangular groove is provided on the side of the circular ring plate close to the mounting frame, the closing piece is fixedly connected to the upper and lower sides of the mounting frame, and the closing piece cooperates with the rectangular groove.
[0010] In order to cool the electrode and the electrode top block during the working process, further, the circulating cooling assembly includes a spiral conveying pipeline, the number of the spiral conveying pipelines is set to two, the spiral conveying pipeline is arranged in the installation chamber, the spiral conveying pipeline is in contact with the circular ring plate, and the two spiral conveying pipelines are connected.
[0011] In order to improve the cooling effect of the circulating cooling assembly, on the basis of the present scheme, the gas cooling assembly includes an annular gas injection cylinder and an exhaust trough body, the annular gas injection cylinder body is fixedly connected to the mounting ring plate located on the upper side, the annular gas injection cylinder body is connected to a gas filling pipe, a plurality of through grooves are opened on the flexible protective layer located on the upper side, the exhaust trough body is arranged in each of the through grooves, a plurality of exhaust holes are connected to the bottom end of the exhaust trough body, and the exhaust trough body is connected to the annular gas injection cylinder body.
[0012] In order to discharge the excess gas between the two covering and protective mechanisms, on the basis of the above-mentioned scheme, it further includes an exhaust pipe, and a plurality of the exhaust pipes are connected to the flexible protective layer on the upper side, and the exhaust pipes are provided with valves.
[0013] In order to keep the opening located on the upper side closed, on the basis of the present solution, further, a closed top cover is included, wherein the closed top cover is fixedly connected to the top of the mounting frame, and the closed top cover is used to close the opening located on the upper side.
[0014] In order to further improve the present invention, a driving electric cylinder is further included, wherein the driving electric cylinder is arranged on the lifting bracket, and an output end of the driving electric cylinder is fixedly connected to the closed top cover.
[0015] The working principle and beneficial effects of the present invention are: 1. In the present invention, when the steel in the refining furnace is smelted, the electric cylinder is driven to drive the closed top cover, the mounting frame, the electrode top block and the electrode to descend, so that the electrode is moved out through the opening provided in the middle of the lower flexible protective layer, and the electrode enters the refining furnace. When the mounting frame and the electrode top block descend together with the electrode, the mounting frame and the flexible protective layer are meshed through the closed meshing assembly, so that the middle of the lower flexible protective layer is driven to bulge downward during the electrode's continued descent, so that the flexible protective layer can not only protect the electrode top block, but also increase the cooling area of the spiral conveying pipeline on the lower side, and enable the steel melt splashed in the refining furnace to contact the surface of the flexible protective layer more directly, thereby shortening the splashing distance of the steel melt; 2. In the present invention, when the steel material in the refining furnace is smelted and needs to be discharged, the electric cylinder is driven to drive the closed top cover, the mounting frame, the electrode top block and the electrode to rise, and the fixed ring plate is raised in the lifting bracket to move the electrode out of the refining furnace. When the electric cylinder is driven to drive the mounting frame and the electrode top block to rise together, the mounting frame continues to cooperate with the opening on the upper side through the closed engagement component, and then the electrode top block and the electrode are continued to be cooled through the upper circulating cooling component. When the coolant flows between the two spiral conveying pipelines, after the bottom of the spiral conveying pipeline moves to the upper side, the coolant in the spiral conveying pipeline on the upper side has a certain temperature, which reduces the temperature difference between the outside air and the electrode, and makes the electrode and the electrode top block gradually cool down, thereby avoiding the problem of deformation and damage of the electrode and the electrode top block due to excessive cooling. 3. Therefore, during actual use, the refining furnace electrode top block protection device can effectively protect the electrode top block and ensure that the electrode top block can provide stable power supply to the electrode. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial cross-sectional structural diagram of the cooperation of the covering protection mechanism, the circulating cooling component and the gas cooling component in the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the partially enlarged structure at point A in the middle; Figure 4 For the present invention Figure 2 A schematic diagram of the partially enlarged structure at B in the middle; Figure 5 It is a schematic diagram of a partially sectional structure of the middle covering protection mechanism, the circulating cooling component and the gas cooling component in the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the partially enlarged structure at C in the middle; Figure 7 It is a schematic diagram of a partial cross-section of the structure of the spiral conveying pipeline, the flexible protective layer and the exhaust tank body in the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the partially enlarged structure at D in the middle; Fig. 9 It is a structural schematic diagram of the spiral conveying pipeline in the present invention.
[0018] In the figure: 100, covering and protecting mechanism; 200, circulating cooling assembly; 300, gas cooling assembly; 1. Lifting bracket; 2. Fixed ring plate; 3. Mounting frame; 4. Flexible protective layer; 5. Flexible cover layer; 6. Mounting ring plate; 7. Sliding part; 8. Flexible sliding strip; 9. Rotating cylinder; 10. Winding cylinder; 11. Rotating shaft; 12. Traction rope; 13. Pull ring; 14. Circular ring plate; 15. Closing part; 16. Spiral conveying pipeline; 17. Annular gas injection cylinder; 18. Gas filling pipe; 19. Exhaust trough; 20. Exhaust pipe; 21. Closed top cover; 22. Driving electric cylinder; 23. Transmission screw; 24. Driving motor; 25. Mounting bracket; 26. Spring. DETAILED DESCRIPTION
[0019] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] like Figures 1 to 9 As shown, this embodiment proposes a refining furnace electrode top block protection device, including a lifting bracket 1, a fixed ring plate 2 is longitudinally movable on the lifting bracket 1, a driving screw 23 is rotatably connected to the lifting bracket 1, the fixed ring plate 2 is slidably connected to the lifting bracket 1, a driving motor 24 is arranged on the lifting bracket 1, and the output end of the driving motor 24 is fixedly connected to the driving screw 23. When it is necessary to drive the fixed ring plate 2 to move longitudinally, the driving motor 24 is started to drive the driving screw 23 to rotate, so that the fixed ring plate 2 moves longitudinally on the lifting bracket 1, so that the electrode enters the interior of the refining furnace; The cover and protection mechanism 100 is also included. The cover and protection mechanism 100 is provided on both the upper and lower sides of the fixed ring plate 2. An opening is provided in the middle of the cover and protection mechanism 100. The cover and protection mechanism 100 includes a flexible protective layer 4 and a flexible cover layer 5. The flexible protective layer 4 is slidably arranged on the fixed ring plate 2. A plurality of through holes are provided on the circumference of the flexible protective layer 4. A traction reset component is provided between each through hole and the fixed ring plate 2. The traction reset component includes a rotating cylinder 9, a winding cylinder 10 and a traction rope 12. The rotating cylinder 9 is fixedly connected in the installation groove. The winding cylinder 10 is rotatably connected to the rotating cylinder 9 through a rotating shaft 11. A clockwork spring 26 is provided between the rotating shaft 11 and the inner wall of the rotating cylinder 9. The guide rope 12 is wound around the rotating cylinder 9, and the other end of the traction rope 12 is fixedly connected with a pull ring 13, which contacts the inner wall of the corresponding through hole. When the mounting frame 3, the electrode top block and the electrode are moved longitudinally, the mounting frame 3 will cause the flexible protective layer 4 located on the lower side to bulge downward, and at this time, the surrounding area of the flexible protective layer 4 is pulled to move toward the middle direction, driving the rotating shaft 11 and the winding cylinder 10 to rotate on the rotating cylinder 9, so that the spring spring 26 is tightened, so that the flexible protective layer 4 is kept sufficiently taut during the movement, and when the flexible protective layer 4 is reset, the rotating shaft 11 and the winding cylinder 10 are driven to rotate in the opposite direction by the spring spring 26, so that the traction rope 12 pulls the flexible protective layer 4 to reset; It also includes a mounting ring plate 6, a sliding member 7 and a flexible sliding bar 8. A plurality of mounting brackets 25 are fixedly connected to the fixed ring plate 2. The mounting ring plate 6 is fixedly connected between the plurality of mounting brackets 25. A mounting groove is provided on the mounting bracket 25. The number of the mounting grooves is consistent with the number of through holes. A traction reset assembly is arranged between the mounting grooves and through holes corresponding to each other. A plurality of sliding members 7 are fixedly connected to the mounting ring plate 6 in a circumferential manner. The flexible sliding bar 8 is arranged on the flexible protective layer 4. The number of the flexible sliding bars 8 is consistent with the number of the sliding members 7. The flexible sliding bar 8 is slidably arranged on the corresponding sliding member 7. When the flexible protective layer 4 is driven to move by the mounting frame 3, in order to prevent the flexible protective layer 4 from overlapping during the movement, the flexible sliding bar 8 is made to slide in the sliding member 7, thereby limiting the movement of the flexible protective layer 4. The mounting frame 3 is arranged on the outside of the electrode top block, and the mounting frame 3 is arranged between the fixed ring plate 2 and the two covering protection mechanisms 100, wherein an opening is provided in the middle of the flexible protection layer 4, and a closed meshing assembly is provided between the opening and the mounting frame 3, and the closed meshing assembly includes a circular ring plate 14 and a closing member 15, and the opening is fixedly connected with the circular ring plate 14, and a rectangular groove is provided on the side of the circular ring plate 14 close to the mounting frame 3, and the upper and lower sides of the mounting frame 3 are fixedly connected with the closing member 15, and the closing member 15 cooperates with the rectangular groove, and when the mounting frame 3 and the electrode top block are driven to move longitudinally, the closing member 15 enters the rectangular groove in the circular ring plate 14, because the closing member 15 is completely closed with the rectangular groove, so that the opening is kept closed, and the gas in the two flexible protection layers 4 is prevented from leaking; A flexible cover layer 5 is fixedly connected to one side of the flexible protective layer 4 close to the fixed ring plate 2, and the outer wall of the flexible cover layer 5 is fixedly connected to the fixed ring plate 2. An installation chamber is formed between the inner wall of the flexible cover layer 5 and the flexible protective layer 4, and the spiral conveying pipeline 16 is in contact with the inner wall of the flexible protective layer 4. The spiral conveying pipeline 16 close to one side of the refining furnace can keep the flexible protective layer 4 on the same side at a low temperature to avoid damage to the flexible protective layer 4, and the spiral conveying pipeline 16 on the upper side can isolate the external temperature to avoid damage to the electrode and the electrode top block due to a large temperature difference. The flexible cover layer 5 can cover the spiral conveying pipeline 16 to prevent the molten metal from dripping onto the spiral conveying pipeline 16 after the electrode enters between the two flexible protective layers 4, and when the flexible protective layer 4 is convex, the flexible cover layer 5 will also move with the slight deformation of the flexible protective layer 4.
[0021] A circulating cooling assembly 200 is arranged between the two covering and protecting mechanisms 100. The circulating cooling assembly 200 includes a spiral conveying pipeline 16. The number of the spiral conveying pipelines 16 is set to two. The spiral conveying pipelines 16 are arranged in the installation chamber. The spiral conveying pipelines 16 are in contact with the circular ring plate 14. The two spiral conveying pipelines 16 are connected. The spiral conveying pipeline 16 located at the lower side is connected to a liquid inlet end, and the spiral conveying pipeline 16 located at the upper side is connected to a liquid outlet end. When it is necessary to cool the electrode during use, the spiral conveying pipeline 16 is connected to the liquid outlet end. The liquid inlet end adds coolant into the spiral conveying pipeline 16 located on the lower side, so that the coolant flows between the two spiral conveying pipelines 16, and is discharged through the liquid outlet end after the coolant is heated. Because the spiral conveying pipeline 16 is in contact with the circular ring plate 14, when the electrode top block and the electrode need to dissipate heat, the coolant flows quickly in the spiral conveying pipeline 16, and the temperature on the electrode top block is quickly exchanged through the working principle of heat transfer. After the flexible protective layer 4 is deformed, the area for cooling the electrode top block and the electrode is increased.
[0022] A gas cooling assembly 300 is provided on the covering protection mechanism 100 located on the upper side. The gas cooling assembly 300 includes an annular gas injection cylinder 17 and an exhaust slot 19. The annular gas injection cylinder 17 is fixedly connected to the mounting ring plate 6 located on the upper side. The annular gas injection cylinder 17 is connected with a gas filling pipe 18. A plurality of through grooves are provided on the flexible protection layer 4 located on the upper side. An exhaust slot 19 is provided in each through groove. A plurality of exhaust holes are connected at the bottom end of the exhaust slot 19. The exhaust slot 19 is connected with the annular gas injection cylinder 17. In order to improve the heat dissipation effect of the spiral conveying pipeline 16 on the electrode top block, low-temperature gas is added into the annular gas injection cylinder 17 through the gas filling pipe 18, so that the low-temperature gas is finally discharged through the exhaust holes connected on the plurality of exhaust slots 19, so that the gas cooperates with the spiral conveying pipeline 16 to improve the cooling effect of the electrode top block and the electrode. It also includes an exhaust pipe 20. A plurality of exhaust pipes 20 are connected to the flexible protective layer 4 on the upper side. A valve is provided on the exhaust pipe 20. After the temperature of the gas in the flexible protective layer 4 and the fixed ring plate 2 rises, the valve is opened to allow the gas to be discharged through the exhaust pipe 20. Then, gas is continuously injected into the flexible protective layer 4 and the fixed ring plate 2 to realize ventilation operation.
[0023] It also includes a closed top cover 21, which is fixedly connected to the top of the mounting frame 3. The closed top cover 21 is used to close the opening on the upper side. When the electrode top block and the electrode are driven to move downward, after the electrode enters the refining furnace, the closed top cover 21 contacts the flexible protective layer 4 on the upper side. Under the action of the circular ring plate 14, the opening does not deform, so that the closed top cover 21 and the opening are in contact and maintain a sealing effect, thereby preventing leakage when gas is subsequently added into the flexible protective layer 4. It also includes a driving electric cylinder 22, which is arranged on the lifting bracket 1. The output end of the driving electric cylinder 22 is fixedly connected to the closed top cover 21. The driving electric cylinder 22 can drive the mounting frame 3, the electrode top block and the electrode to move longitudinally.
[0024] The working principle of the refining furnace electrode top block protection device: The driving motor 24 drives the transmission screw 23 to rotate, driving the fixed ring plate 2 and other components to move longitudinally together, so that the fixed ring plate 2 and other components move to the top of the refining furnace, and the driving electric cylinder 22 is started to drive the mounting frame 3, the electrode top block and the electrode to move downward, so that the electrode enters the refining furnace, and the electrode cooperates with the refining furnace to smelt the steel material; During the process of the electrode top block and the electrode descending together, the sealing member 15 enters into the rectangular groove in the circular ring plate 14, driving the flexible protective layer 4 on the lower side to bulge downward. During the movement of the flexible protective layer 4, the rotating shaft 11 and the winding cylinder 10 are driven to rotate on the rotating cylinder 9, so that the spring spring 26 is tightened, so that the flexible protective layer 4 is kept sufficiently tensioned during the movement. Then, during the working process of the electrode and the electrode top block, coolant is added to the spiral conveying pipeline 16 on the lower side, so that the coolant flows between the two spiral conveying pipelines 16, and is discharged through the liquid outlet after the coolant is heated, so that the electrode and the electrode top block are fully cooled, and low-temperature gas is added to the annular gas injection cylinder 17 through the gas filling pipe 18, so that the low-temperature gas is finally discharged through the exhaust holes connected to the multiple exhaust slots 19, so that the gas cooperates with the spiral conveying pipeline 16 to improve the cooling effect of the electrode top block and the electrode; After completing the smelting operation of the steel in the refining furnace, the driving electric cylinder 22 is started to drive the mounting frame 3, the electrode top block and the electrode to rise, so that the closing piece 15 on the upper side of the mounting frame 3 engages with the inner wall of the rectangular groove, so that the flexible protective layer 4 on the upper side bulges upward, and then the spiral conveying pipeline 16 and the gas are used to gradually cool down the electrode top block and the electrode.
[0025] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A refining furnace electrode top block protection device, comprising a lifting bracket (1), wherein a fixed ring plate (2) is longitudinally movable on the lifting bracket (1), characterized in that: Also includes: A covering and protecting mechanism (100), wherein the covering and protecting mechanism (100) is provided on both upper and lower sides of the fixed ring plate (2), and an opening is provided in the middle of the covering and protecting mechanism (100); A mounting frame (3), the mounting frame (3) being arranged on the outside of the electrode top block, and the mounting frame (3) being arranged between the fixed ring plate (2) and the two covering and protecting mechanisms (100); A circulating cooling component (200), wherein the circulating cooling component (200) is arranged between the two covering and protecting mechanisms (100); A gas cooling component (300) is arranged on the covering and protecting mechanism (100) located on the upper side.
2. A refining furnace electrode top block protection device according to claim 1, characterized in that: The covering and protecting mechanism (100) comprises: A flexible protective layer (4), the flexible protective layer (4) being slidably disposed on the fixed ring plate (2), a plurality of through holes being provided on the circumference of the flexible protective layer (4), and a traction resetting component being provided between each of the through holes and the fixed ring plate (2); The opening is provided in the middle of the flexible protective layer (4), and a closed engagement component is provided between the opening and the mounting frame (3); A flexible cover layer (5), wherein the flexible cover layer (5) is fixedly connected to a side of the flexible protective layer (4) close to the fixed ring plate (2), an outer wall of the flexible cover layer (5) is fixedly connected to the fixed ring plate (2), and an installation chamber is formed between an inner wall of the flexible cover layer (5) and the flexible protective layer (4).
3. A refining furnace electrode top block protection device according to claim 2, characterized in that: Also includes; A mounting ring plate (6), wherein a plurality of mounting brackets (25) are fixedly connected to the fixed ring plate (2), the mounting ring plate (6) is fixedly connected between the plurality of mounting brackets (25), the mounting brackets (25) are provided with mounting grooves, the number of the mounting grooves is consistent with the number of the through holes, and the traction reset assembly is arranged between the mounting grooves and the through holes corresponding to each other; Sliding members (7), a plurality of sliding members (7) being fixedly connected to the circumference of the mounting ring plate (6); A flexible sliding bar (8), wherein the flexible sliding bar (8) is arranged on the flexible protective layer (4), the number of the flexible sliding bars (8) is consistent with the number of the sliding members (7), and the flexible sliding bar (8) is slidably arranged on the corresponding sliding member (7).
4. A refining furnace electrode top block protection device according to claim 3, characterized in that: The traction reset assembly comprises: A rotating cylinder (9), the rotating cylinder (9) being fixedly connected in the mounting groove; A winding cylinder (10), the winding cylinder (10) being rotatably connected to the rotating cylinder (9) via a rotating shaft (11), and a spring (26) being provided between the rotating shaft (11) and the inner wall of the rotating cylinder (9); A traction rope (12), the traction rope (12) being wound around the rotating cylinder (9), the other end of the traction rope (12) being fixedly connected to a pull ring (13), the pull ring (13) being in contact with the corresponding inner wall of the through hole.
5. A refining furnace electrode top block protection device according to claim 4, characterized in that: The closure engagement assembly comprises: A circular ring plate (14), the opening being fixedly connected to the circular ring plate (14), and a rectangular groove being formed on a side of the circular ring plate (14) close to the mounting frame (3); A closing piece (15) is fixedly connected to the upper and lower sides of the installation frame (3), and the closing piece (15) cooperates with the rectangular groove.
6. A refining furnace electrode top block protection device according to claim 5, characterized in that: The circulating cooling component (200) comprises: A spiral conveying pipeline (16), wherein the number of the spiral conveying pipelines (16) is set to two, the spiral conveying pipeline (16) is arranged in the installation chamber, the spiral conveying pipeline (16) is in contact with the circular ring plate (14), and the two spiral conveying pipelines (16) are connected.
7. A refining furnace electrode top block protection device according to claim 6, characterized in that: The gas cooling assembly (300) comprises: an annular gas injection cylinder (17), the annular gas injection cylinder (17) being fixedly connected to the mounting ring plate (6) located on the upper side, and the annular gas injection cylinder (17) being connected to a gas filling pipe (18); An exhaust groove body (19) is provided with a plurality of through grooves on the flexible protective layer (4) located on the upper side, the exhaust groove body (19) is arranged in each of the through grooves, the bottom end of the exhaust groove body (19) is connected to a plurality of exhaust holes, and the exhaust groove body (19) is connected to the annular gas injection cylinder body (17).
8. A refining furnace electrode top block protection device according to claim 7, characterized in that: Also includes: An exhaust pipe (20), wherein a plurality of the exhaust pipes (20) are connected to the flexible protective layer (4) located on the upper side, and a valve is provided on the exhaust pipe (20).
9. A refining furnace electrode top block protection device according to claim 8, characterized in that: Also includes: A closed top cover (21), the closed top cover (21) being fixedly connected to the top of the mounting frame (3), the closed top cover (21) being used to close the opening located on the upper side.
10. A refining furnace electrode top block protection device according to claim 9, characterized in that: Also includes; A driving electric cylinder (22), wherein the driving electric cylinder (22) is arranged on the lifting bracket (1), and an output end of the driving electric cylinder (22) is fixedly connected to the closed top cover (21).