Pneumatic fixing device for water tank of bottom of gas-protected electroslag furnace

Abstract

The utility model relates to a kind of gas-protected electroslag furnace bottom water tank pneumatic fixing device, with electroslag furnace smelting station located in pit;Bottom water tank is located on electroslag furnace smelting station.If several groups bottom water tank pneumatic locking device bottom is fixed in the edge of electroslag furnace smelting station;And set along the preset axis of electroslag furnace smelting station;In smelting preparation stage, the movement side of bottom water tank pneumatic locking device extends and fixes bottom water tank.Adopted bottom water tank pneumatic locking device, without personnel into pit can realize the firm fixation of bottom water tank and electroslag furnace smelting station;Compared with the compression and loosening operation of transmission mechanical pressing block device, without personnel into pit can be completed operation, substantially reduce the operation intensity of worker, while significantly improve the operation safety of work.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of gas-protected electroslag furnace technology, specifically to a pneumatic fixing device for the bottom water tank of a gas-protected electroslag furnace. Background Technology

[0002] In the preparation stage of electroslag remelting in a protective atmosphere, after the crystallizer and bottom water tank are installed and placed into the smelting station, the stability of the arc ignition stage is crucial to the entire smelting process. During this stage, the smelting electrode and bottom water tank need to be ignited by drawing the arc through the electrode and slag. This arc ignition process generates a tensile force several times the weight of the electrode, which tends to cause the electrode to separate from the bottom water tank. Therefore, it is essential to ensure that the bottom water tank is firmly fixed in the pit to resist this strong separation force and guarantee successful arc ignition in the initial stages of smelting.

[0003] In existing technologies, the fixation between the bottom water tank and the pit mainly relies on the installation of mechanical pressure plate devices. However, this traditional fixing method has significant drawbacks in actual operation: fixing operations during the preparation stage of electroslag remelting in a protective atmosphere, and loosening operations when hoisting the crystallizer and bottom water tank after smelting, all require workers to enter the pit and manually tighten the pressure plate bolts one by one with a wrench to complete the fixing and loosening actions. This process not only significantly increases the labor intensity of workers and consumes a lot of manpower and time, but also poses serious safety hazards.

[0004] Because the electroslag remelting process in a protective atmosphere typically uses argon, and argon, being an inert gas denser than air, is highly susceptible to accumulating in low-lying areas such as pits if leaks occur. When workers enter argon-filled pits for manual operations, they may face the risk of asphyxiation due to oxygen deficiency, posing a serious threat to their lives.

[0005] To effectively address the problems of high labor intensity and low operational safety caused by existing mechanical pressure plate devices, the development of a new type of bottom water tank fixing device has become an urgent need in the industry. Utility Model Content

[0006] The purpose of this utility model is to provide a pneumatic fixing device for the bottom water tank of an electroslag furnace that can reduce labor intensity and has high operational safety.

[0007] To achieve the above objectives, this utility model provides a pneumatic fixing device for the bottom water tank of an electroslag furnace, comprising:

[0008] An electroslag furnace smelting station, wherein the electroslag furnace smelting station is located in a pit;

[0009] A bottom water tank is located at the electroslag furnace smelting station;

[0010] A pneumatic locking device for the bottom water tank, comprising several sets of such devices, is fixed at the bottom edge of the electroslag furnace smelting station and is arranged along a preset axis of the electroslag furnace smelting station. During the smelting preparation stage, the moving side of the pneumatic locking device extends to fix the bottom water tank.

[0011] Furthermore, in the gas-supported electroslag furnace bottom water tank pneumatic fixing device of this utility model, a clamping block is provided on the bottom water tank pneumatic locking device. During the smelting preparation stage, the lower end face of one side of the clamping block is attached to the bottom water tank to fix the bottom water tank.

[0012] Furthermore, in the gas-supported electroslag furnace bottom water tank pneumatic fixing device of this utility model, the crystallizer is fixed on the bottom water tank by bolts; the bottom water tank and the crystallizer are installed together on the electroslag furnace smelting station.

[0013] Furthermore, in the pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace described in this utility model, the pneumatic locking device for the bottom water tank further includes: a pressing mounting plate, a first insulating plate, a locking cylinder, a cylinder connecting block, a pressing block, a lower limiting clamp plate, an upper limiting clamp plate, and hexagonal head bolts.

[0014] A clamping mounting plate is fixed to the electroslag furnace smelting station using bolts.

[0015] A locking cylinder, which is fixed on the clamping mounting plate;

[0016] The locking cylinder further includes: a cylinder body and a cylinder piston rod; the cylinder body is the power component of the locking cylinder; the cylinder piston rod is horizontally connected to the cylinder body;

[0017] A first insulating plate, which is located and clamped between the locking cylinder and the pressing mounting plate;

[0018] A cylinder connecting block, which is fixed to one end of the cylinder piston rod by bolts;

[0019] A clamping block, one end of which is located on one side of the cylinder connecting block.

[0020] A connecting insulating block is provided between the clamping block and the cylinder connecting block to provide insulation between the clamping block and the cylinder connecting block.

[0021] The cylinder connecting block, connecting insulating block, and clamping block are fixedly connected to each other by hexagonal head bolts.

[0022] The clamping block passes through the through hole formed by the combination of the lower limiting clamp plate and the upper limiting plate. The lower limiting clamp plate is fixed to the clamping mounting plate by bolts, and the upper limiting clamp plate is fixed to the lower limiting clamp plate by bolts. A rectangular through hole is formed between the lower limiting clamp plate and the upper limiting plate.

[0023] When the cylinder piston rod extends or retracts, it drives the cylinder connecting block and the clamping block to press or release together in the bottom water tank.

[0024] Furthermore, in the pneumatic fixing device for the bottom water tank of the electroslag furnace described in this utility model, when the piston rod of the cylinder extends during the smelting preparation stage, it drives the clamping block to extend as well. One side of the clamping block contacts and presses against the bottom water tank through the through hole formed by the combination of the lower limit clamp plate and the upper limit plate. This allows the pneumatic locking device of the bottom water tank to be subjected to longitudinal force through the lower limit clamp plate and the upper limit plate, effectively resisting the tensile force generated by the smelting electrode and the bottom water tank during the arc-starting stage, which is several times the weight of the electrode, and firmly fixing the bottom water tank on the electroslag furnace smelting station.

[0025] Furthermore, in the gas-insulated electroslag furnace bottom water tank pneumatic fixing device described in this utility model,

[0026] When the cylinder piston rod retracts, it drives the clamping block to retract as well. At this time, one side of the clamping block is separated from the bottom water tank through the through hole of the combination of the lower limit clamp plate and the upper limit plate. The clamping block and the bottom water tank are pressed or released by the bottom water tank pneumatic locking device.

[0027] Furthermore, in the gas-insulated electroslag furnace bottom water tank pneumatic fixing device of this utility model, a cylinder cover is provided on the locking cylinder.

[0028] Furthermore, in the pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace described in this utility model, a first insulating block is provided between the clamping block and the lower limiting clamp plate.

[0029] Furthermore, in the pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace described in this utility model, a second insulating block is provided between the clamping block and the upper plate of the limiting clamp.

[0030] Furthermore, in the pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace described in this utility model, an insulating sleeve is provided between the hexagonal head bolt and the cylinder connecting block and the connecting insulating block.

[0031] Compared with the prior art, the embodiment of this utility model places the electroslag furnace smelting station in a pit; the bottom water tank is located on the electroslag furnace smelting station. Several sets of pneumatic locking devices for the bottom water tank are fixed at the bottom of the edge of the electroslag furnace smelting station and are set along the preset axis of the electroslag furnace smelting station; during the smelting preparation stage, the moving side of the pneumatic locking device extends to fix the bottom water tank. By using the pneumatic locking device for the bottom water tank, the bottom water tank and the electroslag furnace smelting station can be firmly fixed without personnel entering the pit. Traditional methods of fixing the bottom water tank and the electroslag furnace smelting station rely on mechanical pressure plate devices. This has significant drawbacks: during the fixing operation in the protective atmosphere electroslag furnace smelting preparation stage and the loosening operation after smelting, workers need to enter the pit and manually tighten the bolts one by one with a wrench. This is not only labor-intensive and time-consuming, but also poses a safety hazard due to argon gas deposition. This invention uses pneumatics as the power source, requiring only pneumatic pipelines, making the system composition relatively simple. Compared to the pressing and releasing operations of mechanical pressing devices, the operation can be completed without personnel entering the pit, significantly reducing the workload of workers and greatly improving operational safety.

[0032] This invention uses a through-hole structure formed by the combination of the lower limiting clamp plate and the upper limiting plate to fix the device to the electroslag furnace smelting station. This allows the longitudinal force on the device to be shared by the lower and upper limiting plates, effectively resisting the tensile force generated between the smelting electrode and the bottom water tank during the arc-starting stage, which is several times the weight of the electrode. This firmly fixes the bottom water tank to the electroslag furnace smelting station. This mechanism design further enhances the stability of the device, provides practicality in real-world applications, and solves the technical problems of high labor intensity and low operational safety caused by existing mechanical pressure plate devices. Attached Figure Description

[0033] Figure 1 This is the front view of the present invention.

[0034] Figure 2 This is a front view of the present invention.

[0035] Figure 3 for Figure 2 Sectional view of AA.

[0036] Figure 4 for Figure 3 Enlarged view of position I in the middle.

[0037] Figure 5 for Figure 2 BB cross-sectional view.

[0038] Figure 6 for Figure 5 Enlarged view of position II in the middle.

[0039] Figure 7 for Figure 5CC section view.

[0040] Figure 8 for Figure 7 Enlarged view of position III.

[0041] The reference numerals in the figure are as follows: 1-Electroslag remelting station, 2-Bottom water tank, 3-Bottom water tank pneumatic locking device, 31-Pressure mounting plate, 311-First insulating plate, 32-Locking cylinder, 321-Cylinder body, 322-Cylinder piston rod, 33-Cylinder connecting block, 34-Pressure block, 341-Connecting insulating block, 35-Limit clamp lower plate, 351-First insulating block, 36-Limit upper plate, 361-Second insulating block, 37-Hexagonal head bolt, 371-Insulating sleeve, 38-Cylinder cover, 4-Crystallizer. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0043] The embodiments of this utility model relate to a pneumatic fixing device for a gas-insulated electroslag furnace bottom water tank, such as... Figures 1-8 As shown, it includes:

[0044] The electroslag furnace smelting station 1 is located in a pit;

[0045] Bottom water tank 2 is located on the electroslag furnace smelting station 1;

[0046] Several sets of bottom water tank pneumatic locking devices 3 are fixed at the bottom edge of the electroslag furnace smelting station 1 and are set along the preset axis of the electroslag furnace smelting station 1; during the smelting preparation stage, the moving side of the bottom water tank pneumatic locking device 3 extends out to fix the bottom water tank 2.

[0047] This embodiment employs a pneumatic locking device for the bottom water tank, enabling secure fixing of the bottom water tank to the electroslag furnace smelting station without requiring personnel to enter the pit. Traditional methods rely on mechanical pressure plates, which have significant drawbacks: during the fixing process in the protective atmosphere electroslag furnace smelting preparation stage and the loosening process after smelting, workers must enter the pit to manually tighten the bolts one by one with a wrench. This is not only labor-intensive and time-consuming but also poses a safety hazard due to argon gas deposition. In contrast, this invention uses pneumatic power, requiring only pneumatic piping, resulting in a relatively simple system composition. Compared to the tightening and loosening operations of mechanical pressure plates, the operation can be completed without personnel entering the pit, significantly reducing worker workload and improving operational safety.

[0048] To achieve the above-mentioned technical effects, in the pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace in this embodiment, such as Figures 1-8 As shown, a clamping block 34 is provided on the pneumatic locking device 3 of the bottom water tank. During the smelting preparation stage, the lower end face of one side of the clamping block 34 is attached to the bottom water tank 2 to fix the bottom water tank 2.

[0049] To achieve the above-mentioned technical effects, in the pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace in this embodiment, such as Figures 1-8 As shown, the crystallizer 4 is fixed to the bottom water tank 2 with bolts; the bottom water tank 2 and the crystallizer 4 are installed together on the electroslag furnace smelting station 1.

[0050] To achieve the above-mentioned technical effects, in the pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace in this embodiment, such as Figures 1-8 As shown, the bottom water tank pneumatic locking device 3 also includes: a pressing mounting plate 31, a first insulating plate 311, a locking cylinder 32, a cylinder connecting block 33, a pressing block 34, a limit clamp lower plate 35, a limit upper plate 36, and a hexagonal head bolt 37.

[0051] The mounting plate 31 is fixed and tightened by bolts on the electroslag furnace smelting station 1;

[0052] The locking cylinder 32 is fixed on the clamping mounting plate 31;

[0053] The locking cylinder 32 also includes: a cylinder body 321 and a cylinder piston rod 322; the cylinder body 321 is the power unit of the locking cylinder 32; the cylinder piston rod 322 is horizontally connected to the cylinder body 321;

[0054] The first insulating plate 311 is located and clamped between the locking cylinder 32 and the pressing mounting plate 31; the first insulating plate 311 serves as insulation.

[0055] The cylinder connecting block 33 is fixed to one end of the cylinder piston rod 322 by bolts;

[0056] The clamping block 34 has one end located on one side of the cylinder connecting block 33.

[0057] A connecting insulating block 341 is provided between the clamping block 34 and the cylinder connecting block 33 to provide insulation between the clamping block 34 and the cylinder connecting block 33.

[0058] The cylinder connecting block 33, the connecting insulating block 341, and the clamping block 34 are fixedly connected to each other by hexagonal head bolts 37.

[0059] The clamping block 34 passes through the through hole formed by the combination of the lower limit clamp plate 35 and the upper limit plate 36. The lower limit clamp plate 35 is fixed to the clamping mounting plate 31 by bolts, and the upper limit clamp plate 36 is fixed to the lower limit clamp plate 35 by bolts. A rectangular through hole is formed between the lower limit clamp plate 35 and the upper limit plate 36.

[0060] When the cylinder piston rod 322 extends or retracts, it drives the cylinder connecting block 33 and the clamping block 34 to clamp or loosen together in the bottom water tank 2.

[0061] To achieve the above-mentioned technical effects, in the pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace in this embodiment, such as Figures 1-8 As shown,

[0062] During the smelting preparation stage, when the cylinder piston rod 322 extends, it drives the clamping block 34 to extend as well. At this time, one side of the clamping block 34 contacts and presses against the bottom water tank 2 through the through hole formed by the combination of the lower limiting plate 35 and the upper limiting plate 36. The device is fixed to the electroslag furnace smelting station 1 through the through hole structure formed by the combination of the lower limiting plate 35 and the upper limiting plate 36. This allows the longitudinal force on the device to be borne jointly by the lower limiting plate 35 and the upper limiting plate 36, effectively resisting the tensile force generated by the smelting electrode and the bottom water tank 2 during the arc initiation stage, which is several times the weight of the electrode, thus firmly fixing the bottom water tank 2 to the electroslag furnace smelting station 1. This mechanism design further enhances the stability of the device and provides practicality in real-world applications.

[0063] To achieve the above-mentioned technical effects, in the pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace in this embodiment, such as Figures 1-8 As shown, when the cylinder piston rod 322 retracts, it drives the clamping block 34 to retract as well. At this time, one side of the clamping block 34 is separated from the bottom water tank 2 through the through hole formed by the combination of the lower limit clamping plate 35 and the upper limit plate 36. The clamping block 34 and the bottom water tank 2 are clamped or released by the bottom water tank pneumatic locking device 3.

[0064] To achieve the above-mentioned technical effects, in the pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace in this embodiment, such as Figures 1-8As shown, a cylinder cover 38 is provided on the locking cylinder 32. The cylinder cover 38 serves to protect the locking cylinder 32.

[0065] To achieve the above-mentioned technical effects, in the pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace in this embodiment, such as Figures 1-8 As shown, a first insulating block 351 is provided between the clamping block 34 and the lower limit clamp plate 35 to provide insulation.

[0066] To achieve the above-mentioned technical effects, in the pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace in this embodiment, such as Figures 1-8 As shown, a second insulating block 361 is provided between the clamping block 34 and the upper plate of the limiting clamp 36.

[0067] To achieve the above-mentioned technical effects, in the pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace in this embodiment, such as Figures 1-8 As shown, an insulating sleeve 371 is provided between the hexagonal head bolt 37 and the cylinder connecting block 33 and the connecting insulating block 341.

[0068] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A pneumatic fixing device for a gas-insulated electroslag furnace bottom water tank, characterized in that, include: An electroslag furnace smelting station (1) is located in a pit; Bottom water tank (2), which is located on the electroslag furnace smelting station (1); The bottom water tank pneumatic locking device (3) is fixed at the bottom of several sets of the bottom water tank pneumatic locking devices (3) at the edge of the electroslag furnace smelting station (1); and is set along the preset axis of the electroslag furnace smelting station (1); during the smelting preparation stage, the moving side of the bottom water tank pneumatic locking device (3) extends out to fix the bottom water tank (2); The bottom water tank pneumatic locking device (3) further includes: a pressing mounting plate (31), a first insulating plate (311), a locking cylinder (32), a cylinder connecting block (33), a pressing block (34), a limit clamp lower plate (35), a limit upper plate (36), and a hexagonal head bolt (37). The clamping mounting plate (31) is fixed to the electroslag furnace smelting station (1) by bolts; A locking cylinder (32) is fixed on the pressing mounting plate (31); The locking cylinder (32) further includes: a cylinder body (321) and a cylinder piston rod (322); the cylinder body (321) is the power component of the locking cylinder (32); the cylinder piston rod (322) is horizontally connected to the cylinder body (321); The first insulating plate (311) is located and clamped between the locking cylinder (32) and the pressing mounting plate (31); Cylinder connecting block (33), the cylinder connecting block (33) is fixed to one end of the cylinder piston rod (322) by bolts; A clamping block (34), one end of which is located on one side of the cylinder connecting block (33). A connecting insulating block (341) is provided between the pressing block (34) and the cylinder connecting block (33) to provide insulation between the pressing block (34) and the cylinder connecting block (33). The cylinder connecting block (33), the connecting insulating block (341), and the clamping block (34) are fixedly connected to each other by hexagonal head bolts (37). The clamping block (34) passes through the through hole formed by the combination of the lower limiting clamp plate (35) and the upper limiting plate (36). The lower limiting clamp plate (35) is fixed to the clamping mounting plate (31) by bolts. The upper limiting plate (36) is fixed to the lower limiting clamp plate (35) by bolts. A rectangular through hole is formed between the lower limiting clamp plate (35) and the upper limiting plate (36). When the cylinder piston rod (322) extends or retracts, it drives the cylinder connecting block (33) and the clamping block (34) to clamp or loosen together in the bottom water tank (2).

2. The pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace according to claim 1, characterized in that, A clamping block (34) is provided on the pneumatic locking device (3) of the bottom water tank. During the smelting preparation stage, the lower end face of one side of the clamping block (34) is attached to the bottom water tank (2) to fix the bottom water tank (2).

3. The pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace according to claim 1, characterized in that, The crystallizer (4) is fixed to the bottom water tank (2) by bolts; the bottom water tank (2) and the crystallizer (4) are installed together on the electroslag furnace smelting station (1).

4. The pneumatic fixing device for the bottom water tank of an electroslag furnace according to claim 1, characterized in that, When the cylinder piston rod (322) extends during the smelting preparation stage, it drives the clamping block (34) to extend as well. One side of the clamping block (34) is in contact with the bottom water tank (2) through the through hole formed by the combination of the lower limit clamp plate (35) and the upper limit plate (36), which presses the bottom water tank (2) tightly. This causes the pneumatic locking device (3) of the bottom water tank to be subjected to longitudinal force through the lower limit clamp plate (35) and the upper limit plate (36), which effectively resists the tensile force generated by the smelting electrode and the bottom water tank (2) during the arc-starting stage, which is several times the weight of the electrode, and firmly fixes the bottom water tank (2) on the electroslag furnace smelting station (1).

5. The pneumatic fixing device for the bottom water tank of an electroslag furnace according to claim 1, characterized in that, When the cylinder piston rod (322) retracts, it drives the clamping block (34) to retract as well. At this time, one side of the clamping block (34) is separated from the bottom water tank (2) through the through hole formed by the combination of the lower limit clamp plate (35) and the upper limit plate (36). The clamping block (34) and the bottom water tank (2) are clamped or released by the bottom water tank pneumatic locking device (3).

6. The pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace as described in claim 1, characterized in that, A cylinder cover (38) is provided on the locking cylinder (32).

7. The pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace as described in claim 1, characterized in that, A first insulating block (351) is provided between the clamping block (34) and the lower limiting clamp plate (35).

8. The pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace as described in claim 1, characterized in that, A second insulating block (361) is provided between the clamping block (34) and the upper plate (36) of the limiting plate.

9. The pneumatic fixing device for the bottom water tank of the gas-insulated electroslag furnace as described in claim 1, characterized in that, An insulating sleeve (371) is provided between the hexagonal head bolt (37) and the cylinder connecting block (33) and the connecting insulating block (341).

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