A vacuum multifunctional electroslag furnace

Abstract

The present invention discloses a vacuum multifunctional electroslag furnace, including an upper mechanism and a lower mechanism, wherein the upper mechanism includes a fixed frame, an electrode feeding drive system, an upper conductive short net, a conductive material rod and an electrode clamping assembly, a weighing platform, an electrode centering assembly, a protective atmosphere cover and a protective atmosphere cover lifting and moving assembly, a vacuum system, and a pressurized water and gas balance system; the lower mechanism includes a smoke exhaust hood, a crystallizer, a bottom water tank, a mobile trolley, a lower conductive short net, and a lower auxiliary matching. The present invention converts the gravity of the counterweight block into a thrust from top to bottom to act on the bottom of the bearing plate to offset the gravity of the crystallizer through a gravity conversion member, reduces the load of the operator manually driving the bearing plate, and then drives the bearing plate to move in the horizontal X-axis and Y-axis directions through the X-axis moving assembly and the Y-axis moving assembly of the moving mechanism to adjust the alignment error between the crystallizer and the consumable electrode, thereby improving the safety of production, protecting the consumable electrode, and preventing damage to the consumable electrode.

Description

Technical Field

[0001] The invention relates to the technical field of electroslag furnaces, in particular to a vacuum multifunctional electroslag furnace. Background Art

[0002] The electroslag process refers to a process in which molten slag is contained in a copper water-cooled crystallizer, and one end of a consumable electrode is inserted into the molten slag. The consumable electrode, slag pool, molten metal pool, steel ingot, and bottom water tank form a circuit through a short-circuit wire and a transformer. During the power-on process, the slag pool releases Joule heat, gradually melting the end of the consumable electrode. The molten metal gathers into droplets, passes through the slag pool, and falls into the crystallizer to form a molten metal pool. Under the effect of water cooling, it quickly solidifies to form a steel ingot.

[0003] The liquid metal is covered by the slag pool, which basically avoids reoxidation. Because it is melted, refined and solidified in a copper water-cooled crystallizer, it prevents the contamination of steel by refractory materials.

[0004] Before and after the consumable electrode is replaced, the electroslag furnace rotates the electrode rod holding the consumable electrode to an operable position through the electrode rod rotation system, and then rotates it back to the top of the crystallizer after installing the new consumable electrode. After re-alignment, the next round of production work can be carried out. However, when repositioning, the rotating mechanism of the electrode rod rotation system can only be adjusted along the circumference of the rotation radius, which is inconvenient to operate. Moreover, the mechanism is driven by a motor, and it is difficult to operate and adjust it in a fine range, resulting in frequent errors in the alignment between the consumable electrode and the crystallizer, affecting the production and sometimes causing damage to the consumable electrode. Summary of the invention

[0005] The object of the present invention is to provide a vacuum multifunctional electroslag furnace to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0007] A vacuum multifunctional electroslag furnace provided by the present invention comprises an upper mechanism and a lower mechanism, wherein the upper mechanism comprises a fixed frame, an electrode feeding drive system, an upper conductive short net, a conductive material rod and an electrode clamping assembly, a weighing platform, an electrode centering assembly, a protective atmosphere cover and a protective atmosphere cover lifting and moving assembly, a vacuum system, and a pressurized water and gas balance system; the lower mechanism comprises a smoke exhaust hood, a crystallizer, a bottom water tank, a mobile trolley, a lower conductive short net and lower auxiliary matching, and is characterized in that: the mobile trolley comprises a vehicle body, a bearing plate arranged directly above the vehicle body, and a moving mechanism arranged between the vehicle body and the bearing plate, and the moving mechanism comprises an X-axis moving assembly and a Y-axis moving assembly;

[0008] Wherein, the X-axis moving assembly can move the bearing plate on the upper surface of the vehicle body along the horizontal X-axis direction, and the Y-axis moving assembly can move the bearing plate on the upper surface of the vehicle body along the horizontal Y-axis direction;

[0009] It also includes a gravity compensation component, which includes a counterweight block and a gravity conversion component. The gravity conversion component can convert the gravity of the counterweight block into a thrust from top to bottom that acts on the bottom of the supporting plate to offset the gravity of the crystallizer.

[0010] Furthermore, rectangular sleeves are provided on both sides of the bottom of the supporting plate, and a sliding bar is slidably provided inside the rectangular sleeve, a return spring is evenly provided on the top of the sliding bar, and rollers are provided at both ends of the bottom of the sliding bar.

[0011] Furthermore, the X-axis moving assembly includes a pair of support plates symmetrically arranged at both ends of the top of the vehicle body and a sliding block slidably arranged between the support plates. A screw rod 1 is rotatably arranged between the pair of support plates, and the screw rod 1 is threadedly connected to the sliding block.

[0012] Furthermore, the Y-axis moving assembly includes a second screw rod set at an angle of 90 degrees to the first screw rod, the second screw rod is threadedly connected to the sliding block, and the two ends of the second screw rod are respectively rotatably connected to the two side walls of the sliding bar.

[0013] Furthermore, one end of the screw rod 1 extends to a side corresponding to the support plate and is fixedly connected to a rotating handle 1, and one end of the screw rod 2 extends to a side corresponding to the sliding bar and is fixedly connected to a rotating handle 2.

[0014] Furthermore, the gravity compensation component includes a piston cylinder arranged at four corner positions on the top of the vehicle body, a piston is arranged inside the piston cylinder, a movable rod is arranged on the top of the piston, and a second roller is arranged on the top of the movable rod, and the second roller is in contact with the top of the supporting plate, a hydraulic cavity is arranged inside the vehicle body, a hydraulic plate is slidably arranged inside the hydraulic cavity, a hydraulic pipe is arranged between the bottom of the hydraulic cavity and the bottom of the four piston cylinders, and the counterweight block is placed on the top of the hydraulic plate.

[0015] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0016] The present invention converts the gravity of the counterweight block into a thrust from top to bottom to act on the bottom of the carrier plate to offset the gravity of the crystallizer through a gravity conversion member, thereby reducing the load of the operator manually driving the carrier plate, and then drives the carrier plate to move in the horizontal X-axis and Y-axis directions through the X-axis moving component and the Y-axis moving component of the moving mechanism. Since the device adopts a threaded matching structure, precise fine-tuning can be performed, which greatly improves the accuracy of the alignment of the crystallizer and the consumable electrode on the electrode rod, and the operation is convenient and quick, which significantly improves the work efficiency and ensures the integrity of the consumable electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0018] Figure 1 is a schematic diagram of the overall structure provided by one or more embodiments of the present invention;

[0019] Figure 2 is a schematic diagram of the structure of a mobile trolley provided by one or more embodiments of the present invention;

[0020] Figure 3 is a schematic diagram of the side view structure of the mobile trolley provided by one or more embodiments of the present invention

[0021] In the figure:

[0022] 1. Fixed frame, 2. Electrode feeding drive system, 3. Upper conductive short net, 4. Conductive material rod and electrode clamping assembly, 5. Weighing platform, 6. Electrode centering assembly, 7. Protective atmosphere cover and protective atmosphere cover lifting and moving assembly, 8. Vacuum system, 9. Pressurized water vapor balance system, 10. Car body, 11. Loading plate, 12. Rectangular sleeve, 13. Sliding bar, 14. Reset spring, 15. Roller 1, 16. Support plate, 17. Sliding block, 18. Screw 1, 19. Screw 2, 20. Rotating handle 1, 21. Rotating handle 2, 22. Piston cylinder, 23. Piston, 24. Movable rod, 25. Roller 2, 26. Hydraulic chamber, 27. Hydraulic plate, 28. Hydraulic pipe, 29. Counterweight. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] like Figure 1-3 As shown, a vacuum multifunctional electroslag furnace comprises an upper mechanism and a lower mechanism, wherein the upper mechanism comprises a fixed frame 1, an electrode feeding drive system 2, an upper conductive short net 3, a conductive material rod and electrode clamping assembly 4, a weighing platform 5, an electrode centering assembly 6, a protective atmosphere cover and a protective atmosphere cover lifting and moving assembly 7, a vacuum system 8, and a pressurized water and gas balance system 9; the lower mechanism comprises a fume hood, a crystallizer, a bottom water tank, a mobile trolley, a lower conductive short net and lower auxiliary matching, the mobile trolley comprises a vehicle body 10, a bearing plate 11 arranged directly above the vehicle body 10, and a moving mechanism arranged between the vehicle body 10 and the bearing plate 11, and the moving mechanism comprises an X-axis moving assembly and a Y-axis moving assembly;

[0027] The X-axis moving assembly can move the carrier plate 11 along the horizontal X-axis direction on the upper surface of the vehicle body 10, and the Y-axis moving assembly can move the carrier plate 11 along the horizontal Y-axis direction on the upper surface of the vehicle body 10;

[0028] It also includes a gravity compensation component, which includes a counterweight block 29 and a gravity conversion component. The gravity conversion component can convert the gravity of the counterweight block 29 into a thrust from top to bottom that acts on the bottom of the supporting plate 11 to offset the gravity of the crystallizer.

[0029] The present invention converts the gravity of the counterweight block 29 into a thrust from top to bottom to act on the bottom of the carrier plate 11 to offset the gravity of the crystallizer through a gravity conversion member, thereby reducing the load on the driving carrier plate 11, and then drives the carrier plate 11 to move in the horizontal X-axis and Y-axis directions through the X-axis moving component and the Y-axis moving component of the moving mechanism to adjust the alignment error between the crystallizer and the consumable electrode, thereby improving production safety, protecting the consumable electrode, and preventing damage to the consumable electrode.

[0030] In this embodiment, rectangular sleeves 12 are provided on both sides of the bottom of the supporting plate 11, and a sliding bar 13 is slidably provided inside the rectangular sleeve 12, and a reset spring 14 is evenly provided on the top of the sliding bar 13, and rollers 15 are provided at both ends of the bottom of the sliding bar 13. Through the above structure, when the crystallizer is placed on the supporting plate 11, the reset spring 14 will be compressed, so that the supporting plate 11 can be displaced in the longitudinal direction, which provides convenience for subsequent work. The setting of the roller 15 reduces the resistance to the movement of the supporting plate 11.

[0031] In this embodiment, the X-axis moving component includes a pair of support plates 16 symmetrically arranged at both ends of the top of the vehicle body 10 and a sliding block 17 slidably arranged between the support plates 16. A screw 18 is rotatably arranged between the pair of support plates 16, and the screw 18 is threadedly connected to the sliding block 17. The Y-axis moving component includes a screw 2 19 arranged at a 90-degree angle to the screw 18, and the screw 2 19 is threadedly connected to the sliding block 17, and the two ends of the screw 2 19 are respectively rotatably connected to the side walls of the two sliding bars 13. Through the above structure, when the screw 2 19 is rotated, the screw 2 19 can move left and right on the sliding block 17, thereby pushing the two sliding bars 13 to move and drive the supporting plate to move in the Y-axis direction, and rotating the screw 18 can drive the sliding block 17, thereby driving the supporting plate to move in the X-axis direction.

[0032] In this embodiment, one end of the screw rod 18 extends to the side of the corresponding support plate 16 and is fixedly connected to a rotating handle 20, and one end of the screw rod 19 extends to the side of the corresponding sliding bar 13 and is fixedly connected to a rotating handle 21. Through the above structure, the operator can manually rotate the rotating handle 22 and the rotating handle 120 to adjust the position of the supporting plate 11, so as to accurately adjust the alignment error between the crystallizer and the consumable electrode.

[0033] In this embodiment, the gravity compensation component includes a piston cylinder 22 arranged at the four corner positions of the top of the vehicle body 10, a piston 23 is arranged inside the piston cylinder 22, a movable rod 24 is arranged on the top of the piston 23, and a roller 25 is arranged on the top of the movable rod 24, and the roller 25 is in contact with the top of the load-bearing plate 11, a hydraulic chamber 26 is arranged inside the vehicle body 10, a hydraulic plate 27 is slidably arranged inside the hydraulic chamber 26, a hydraulic pipe 28 is arranged between the bottom of the hydraulic chamber 26 and the bottom of the four piston cylinders 22, and a counterweight 29 is placed on the top of the hydraulic plate 27. Through the above structure, the counterweight 29 presses the hydraulic plate 27 to move downward, so that the hydraulic pressure inside the hydraulic chamber 26 enters the piston cylinder 22 to push the piston 23 to move upward, and then the roller 25 of the movable rod 24 contacts the bottom of the load-bearing plate 11 to generate an upward thrust, thereby reducing the pressure of the crystallizer on the load-bearing plate 11, and facilitating the operator to manually turn screw 1 and screw 2 to adjust the position of the load-bearing plate.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vacuum multifunctional electroslag furnace, comprising an upper mechanism and a lower mechanism, wherein the upper mechanism comprises a fixed frame (1), an electrode feeding drive system (2), an upper conductive short net (3), a conductive material rod and electrode clamping assembly (4), a weighing platform (5), an electrode centering assembly (6), a protective atmosphere cover and a protective atmosphere cover lifting and moving assembly (7), a vacuum system (8), and a pressurized water and gas balance system (9); the lower mechanism comprises a smoke exhaust hood, a crystallizer, a bottom water tank, a mobile trolley, a lower conductive short net and lower auxiliary matching, characterized in that: The mobile trolley comprises a vehicle body (10), a carrying plate (11) arranged directly above the vehicle body (10), and a moving mechanism arranged between the vehicle body (10) and the carrying plate (11), wherein the moving mechanism comprises an X-axis moving component and a Y-axis moving component; The X-axis moving assembly can move the carrier plate (11) along the horizontal X-axis direction on the upper surface of the vehicle body (10), and the Y-axis moving assembly can move the carrier plate (11) along the horizontal Y-axis direction on the upper surface of the vehicle body (10); It also includes a gravity compensation component, the gravity compensation component includes a counterweight block (29) and a gravity conversion component, the gravity conversion component can convert the gravity of the counterweight block (29) into a thrust from top to bottom acting on the bottom of the supporting plate (11) to offset the gravity of the crystallizer; A rectangular sleeve (12) is provided on both sides of the bottom of the bearing plate (11), and a sliding bar (13) is slidably provided inside the rectangular sleeve (12), a return spring (14) is evenly provided on the top of the sliding bar (13), and rollers (15) are provided at both ends of the bottom of the sliding bar (13); The X-axis moving assembly comprises a pair of support plates (16) symmetrically arranged at both ends of the top of the vehicle body (10) and a sliding block (17) slidably arranged between the support plates (16); a screw rod (18) is rotatably arranged between the pair of support plates (16), and the screw rod (18) is threadedly connected to the sliding block (17); The Y-axis moving assembly comprises a second screw (19) arranged at an angle of 90 degrees to the first screw (18), the second screw (19) being threadedly connected to the sliding block (17), and the two ends of the second screw (19) being rotatably connected to the side walls of the two sliding bars (13) respectively; The gravity compensation component includes a piston cylinder (22) arranged at four corner positions on the top of the vehicle body (10), a piston (23) is arranged inside the piston cylinder (22), a movable rod (24) is arranged on the top of the piston (23), and a second roller (25) is arranged on the top of the movable rod (24), and the second roller (25) is in contact with the top of the supporting plate (11), a hydraulic chamber (26) is arranged inside the vehicle body (10), a hydraulic plate (27) is slidably arranged inside the hydraulic chamber (26), a hydraulic pipe (28) is arranged between the bottom of the hydraulic chamber (26) and the bottom of the four piston cylinders (22), and the counterweight block (29) is placed on the top of the hydraulic plate (27).

2. The vacuum multifunctional electroslag furnace according to claim 1, characterized in that: One end of the screw rod 1 (18) extends to a side corresponding to the support plate (16) and is fixedly connected to a rotating handle 1 (20), and one end of the screw rod 2 (19) extends to a side corresponding to the sliding bar (13) and is fixedly connected to a rotating handle 2 (21).

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