Frame type gas protection electroslag furnace

Abstract

The invention relates to a frame type gas-shielded electroslag furnace. A frame structure is arranged on the frame type gas-shielded electroslag furnace; a working platform is arranged in the frame structure; the rotary track is arranged above the working platform; a C-shaped frame structure is arranged on the rotary track; a plurality of smelting stations are arranged below the C-shaped frame structure; the C-shaped frame structure is switched among a plurality of smelting stations along the rotary track; double bearing of the rigid frame and the furnace end rotation supporting seat is adopted, so that higher structural stability is achieved; the problem that according to a traditional single-furnace-end rotary type electroslag furnace, due to frequent arc discharge and heat release of an electrode and a bottom plate in the arc starting stage, a furnace end intermittently bears impact loads which are several times of the weight of the electrode is solved. The driving wheel set and the driven wheel set move on the track in a rolling mode, so that the problems that a traditional single-furnace-end rotary type electroslag furnace frequently rotates, mechanical parts are rapidly abraded, and the sealing performance is possibly reduced after long-term operation are solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to an electroslag furnace, in particular to the technical field of large-tonnage gas-shielded electroslag furnaces, and specifically to a frame-type gas-shielded electroslag furnace. Background Art

[0002] In conventional single-furnace, dual-station rotary electroslag furnaces, the entire weight load on the furnace head rests solely on the furnace head's rotating support. As the smelting capacity of electroslag furnaces continues to increase, exceeding 10 tons, the frequent arcing and heat release between the electrodes and the base plate during the arc starting phase causes the furnace head to intermittently bear impact loads several times the weight of the electrodes. This dynamic load can easily cause the furnace head to "noddy," causing the metal electrodes to shift horizontally away from the mold center, leading to arcing risks and, in severe cases, mold breakdown. Summary of the Invention

[0003] The purpose of the embodiments of the present invention is to provide a frame-type gas-shielded electroslag furnace with a stable structure, optimized rotation mode, stable electrical conduction, safe and convenient maintenance, and reduced maintenance cost.

[0004] In order to achieve the above objectives, the embodiment of the present invention designs a frame-type gas-shielded electroslag furnace, comprising:

[0005] Frame structure; the frame structure is arranged on the frame-type gas-shielded electroslag furnace;

[0006] A working platform is provided within the frame structure;

[0007] A rotary track, the rotary track being arranged above the working platform;

[0008] A "C"-shaped frame structure, wherein the "C"-shaped frame structure is arranged on the rotary track;

[0009] Melting stations: Several melting stations are arranged below the "C"-shaped frame structure;

[0010] The "C"-shaped frame structure switches among several smelting stations along the rotary track.

[0011] Furthermore, in the frame-type gas-shielded electroslag furnace of the present invention, the frame structure further comprises:

[0012] Equipment foundation;

[0013] A smelting station is fixed on the equipment foundation and is connected and fixed to the equipment foundation by bolts.

[0014] A lower smoke hood is fixed above the smelting station, with the lower end of the lower smoke hood abutting against the upper end of the smelting station, and the central axis of the lower smoke hood coinciding with the central axis of the smelting station;

[0015] an upper smoke cover, wherein the upper smoke cover is fixed above the lower smoke cover, the lower end of the upper smoke cover is in contact with the upper end of the lower smoke cover, and the central axis of the upper smoke cover coincides with the central axis of the lower smoke cover;

[0016] A working platform column, the lower end of which is mounted on the equipment foundation and fixed to the equipment foundation by welding;

[0017] A working platform, the working platform is located above the working platform columns and is connected and fixed to a plurality of the working platform columns by welding;

[0018] A control room, which is arranged above the working platform and on one side of the smelting station;

[0019] A transformer room is provided above the control room.

[0020] Furthermore, in the frame-type gas-shielded electroslag furnace of the present invention, the "C"-shaped frame structure further includes:

[0021] The rotary track is arranged above the working platform of the frame structure and on the side opposite to the control room;

[0022] A rigid frame drive device, the rigid frame drive device is located above the working platform, the driving wheel set and the driven wheel set of the rigid frame drive device are both located on the rotating track; the rigid frame drive device moves back and forth along the rotating track;

[0023] A rigid frame, the rigid frame being located above the rigid frame driving device and being connected and fixed to the rigid frame driving device via bolts;

[0024] A burner head rotary support seat, one end of which is fixed above the working platform; the other end of which is connected to the burner head;

[0025] A burner head, one side of the burner head is connected and fixed to the rigid frame by bolts, and the other side of the burner head is connected and fixed to the burner head rotary support seat; the burner head is located above the upper smoke hood.

[0026] Furthermore, the frame-type gas-shielded electroslag furnace of the present invention further comprises:

[0027] An XY centering device, the XY centering device is located on the upper end surface of the furnace head, the XY centering device is connected to the conductive copper shaft, and accurately adjusts the position of the conductive copper shaft in the X direction and the Y direction;

[0028] An A-frame, the A-frame being arranged above the XY centering device;

[0029] A lifting drive device, the lifting drive device is arranged on the top of the A-frame;

[0030] A conductive copper shaft is located below the lifting drive device. An electrode clamping mechanism is provided at the end of the conductive copper shaft.

[0031] Furthermore, the frame-type gas-shielded electroslag furnace of the present invention further comprises:

[0032] A first ladder is provided between the working platform and the furnace head maintenance work platform on the upper surface of the rigid frame, is located outside the rigid frame, and is fixed to the rigid frame by bolts. The upper half of the first ladder has a guardrail;

[0033] a first fence, the first fence being arranged on the upper surface of the rigid frame and being connected and fixed to the rigid frame by bolts. The first fence encloses the furnace head maintenance work platform on the rigid frame into a closed area;

[0034] A second ladder is provided between the maintenance work platform on the upper surface of the rigid frame and the maintenance work platform on the upper portion of the A-frame, located on one side of the A-frame and connected to the A-frame via a triangular fixing frame. The upper half of the second ladder has a guardrail;

[0035] a second fence, the second fence being provided on the upper surface of the maintenance work platform on the A-frame, enclosing the maintenance work platform on the A-frame into a closed area;

[0036] The maintenance work platform on the upper part of the A-frame is connected and fixed to the A-frame through a triangular fixing frame.

[0037] Furthermore, the frame-type gas-shielded electroslag furnace of the present invention further comprises:

[0038] Lower furnace legs, the lower furnace legs are installed on the equipment foundation and are connected and fixed to the equipment foundation by bolts;

[0039] An upper furnace leg, the upper furnace leg being located below the furnace head and having an upper end fixed to the furnace head;

[0040] A furnace leg conductive device, the furnace leg conductive device is located directly below the upper furnace leg, the upper end of the furnace leg conductive device is connected and fixed to the bottom of the upper furnace leg, and the lower end of the furnace leg conductive device is connected to and separated from the upper end of the lower furnace leg through the cylinder provided by the furnace leg conductive device;

[0041] A slag feeder is arranged on the working platform and close to the slag feeding port of the electroslag furnace.

[0042] Furthermore, in the frame-type gas-shielded electroslag furnace of the present invention, the four upper furnace legs are evenly distributed circumferentially around the central axis of the smelting station.

[0043] Furthermore, in the frame-type gas-shielded electroslag furnace described in the present invention, the electrode clamping mechanism is a pneumatic electrode clamping mechanism.

[0044] Compared with the prior art, the embodiment of the present invention adopts a method of setting a frame structure on a frame-type gas-shielded electric slag furnace; setting a working platform inside the frame structure; setting a rotary track above the working platform; setting a "C"-shaped frame structure on the rotary track; setting a plurality of smelting stations below the "C"-shaped frame structure; and switching the "C"-shaped frame structure among the plurality of smelting stations along the rotary track.

[0045] The frame-type gas-shielded electroslag furnace of the present invention has the following significant advantages over the conventional single-burner double-station rotary gas-shielded electroslag furnace:

[0046] 1. Structural Stability: The frame-type gas-shielded electroslag furnace utilizes a dual-load bearing design, using a rigid frame and a furnace head rotary support. The rigid frame load-bearing structure replaces a single rotary support, achieving multi-directional load distribution and providing greater structural stability. This addresses the problem in traditional single-hearth rotary electroslag furnaces where, during the arc starting phase, the frequent arcing and heat release between the electrode and the baseplate causes the furnace head to intermittently bear impact loads several times the weight of the electrode. This dynamic load can easily cause the furnace head to "doze," causing the metal electrode to shift horizontally away from the center of the mold, leading to arcing risks and, in severe cases, mold breakdown.

[0047] 2. Optimization of the rotation mode: The design of the arc-shaped rotary track, the active wheel group and the passive wheel group moving in a rolling manner on the track replaces the method of using a rotary support frame to control the rotation movement, and solves the problems of frequent rotation of traditional single-burner rotary electroslag furnaces, rapid wear of mechanical parts, and possible reduction in sealing after long-term operation.

[0048] 3. Conductive stability: The conductive copper shaft device used in the frame-type gas-shielded electroslag furnace is equipped with an electrode XY centering device, which can accurately adjust the position between the metal electrode and the crystallizer, so that the metal electrode is always in the center of the crystallizer, avoiding electrode arcing, improving conductivity, and ensuring the stability of the smelting process.

[0049] 4. Safe and convenient maintenance: The frame-type gas-shielded electroslag furnace is equipped with ladders with guardrails and maintenance platforms at multiple locations. Maintenance personnel can easily climb the ladders from the working platform to the maintenance platform. The ladder guardrails and maintenance platform fences ensure the safety of maintenance personnel during climbing and maintenance operations, providing a safer working space and more convenient working conditions for later maintenance of the furnace.

[0050] 5. Reduced maintenance costs: The frame-type gas-shielded electric slag furnace adopts a dual-bearing design structure of a rigid frame and a furnace head rotary support seat, which can share the bearing capacity of the furnace head rotary support seat, extend the working life of the mechanical parts of the rotating part, and reduce the maintenance frequency and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is the front view of the present invention;

[0052] Figure 2 It is a left side view of the present invention;

[0053] Figure 3 A top view of the present invention;

[0054] Figure 4 It is an A-direction view of the present invention;

[0055] Figure 5 : B-direction view of the present invention;

[0056] Figure 6 : D position enlarged view of the present invention;

[0057] Figure 7 : It is a cross-sectional view of CC of the present invention rotated 45 degrees counterclockwise.

[0058] In the figure: 1-equipment foundation, 2-working platform column, 3-working platform, 4-control room, 5-transformer room, 6-furnace head rotary support seat, 7-furnace head, 8-conductive copper shaft, 9-A-type frame, 10-lifting drive device, 11-second fence, 12-second ladder, 13-first fence, 14-first ladder, 15-upper furnace leg, 16-rigid frame, 17-upper smoke hood, 18-lower smoke hood, 19-rigid frame drive device, 191-driving wheel group, 192-driven wheel group, 20-smelting station, 21-lower furnace leg, 22. Rotating track, 23-slag feeder, 24-XY alignment device, 25-furnace leg conductive device; 81-electrode clamping mechanism, 100-frame structure, 200-smelting station, 300-"C"-shaped frame structure. DETAILED DESCRIPTION

[0059] To make the objectives, technical solutions, and advantages of the present invention more apparent, various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will appreciate that many technical details are provided in various embodiments of the present invention to facilitate a better understanding of the present application. However, even without these technical details and the various variations and modifications based on the following embodiments, the technical solutions claimed in the claims of this application can be implemented.

[0060] The embodiment of the present invention relates to a frame type gas shielded electroslag furnace, such as Figures 1 to 7 Shown, including:

[0061] A frame structure 100 is provided on the frame-type gas-shielded electroslag furnace; the frame structure 100 mainly plays a supporting role and realizes the function of safe and convenient maintenance.

[0062] A working platform 3 is provided within the frame structure 100 ; the working platform 3 serves as a working area when used for work.

[0063] The rotary track 22 is provided above the working platform 3 ; the rotary track 22 is used to support the “C”-shaped frame structure 300 , playing a supporting role.

[0064] A "C"-shaped frame structure 300 is provided on the rotary track 22;

[0065] Several melting stations 200 are provided below the “C”-shaped frame structure 300;

[0066] The “C”-shaped frame structure 300 switches among several smelting stations 200 along the rotary track 22 .

[0067] When the smelting stations 200 are used for switching, multiple smelting stations 200 can work simultaneously, thereby improving the smelting efficiency.

[0068] Compared with the traditional single-furnace-head dual-station rotary gas-shielded electroslag furnace, the frame-type gas-shielded electroslag furnace of this embodiment adopts a dual-load-bearing design of a rigid frame 16 and a furnace-head rotary support seat 6. The rigid frame load-bearing structure replaces the single rotary support, achieving multi-directional load dispersion and having higher structural stability. The above-mentioned reinforced support rotation system solves the problem that in the traditional single-furnace-head rotary electroslag furnace, the frequent arcing and heat release between the electrode and the bottom plate during the arc starting phase causes the furnace head to intermittently bear impact loads several times the weight of the electrode. This dynamic load can easily cause the furnace head to "noddy", causing the horizontal displacement of the metal electrode to deviate from the center of the crystallizer, thereby creating the risk of arcing, and in severe cases, the crystallizer may be broken through.

[0069] This embodiment replaces the method of using a rotary support frame to control the rotary motion by setting up an arc-shaped rotary track 22, and designing the driving wheel group 191 and the passive wheel group 192 to move in a rolling manner on the track, thereby solving the problems of frequent rotation of traditional single-burner rotary electric slag furnaces, rapid wear of mechanical parts, and possible reduction in sealing after long-term operation.

[0070] This embodiment provides an electrode XY centering device for the conductive copper axis of the frame-type gas-shielded electroslag furnace, which can accurately adjust the position between the metal electrode and the crystallizer, so that the metal electrode is always in the center of the crystallizer, avoiding electrode arcing, improving the conductive performance, and ensuring the stability of the smelting process.

[0071] The frame-type gas-shielded electroslag furnace of this embodiment is equipped with ladders with guardrails and maintenance platforms at multiple locations. Maintenance personnel can easily access the maintenance platforms from the working platforms via ladders. The ladder guardrails and maintenance platform fences ensure the safety of maintenance personnel during climbing and maintenance operations, providing a safer working space and more convenient working conditions for later maintenance of the furnace.

[0072] The frame-type gas-shielded electroslag furnace of this embodiment adopts a dual-bearing design structure of a rigid frame 16 and a furnace head rotary support seat 6, which can share the bearing capacity of the furnace head rotary support seat, extend the working life of the mechanical parts of the rotating part, and reduce the maintenance frequency and maintenance cost.

[0073] In order to achieve the above technical effects, the frame type gas shielded electroslag furnace in this embodiment is as follows: Figures 1 to 7 As shown, the frame structure 100 further includes:

[0074] The equipment foundation 1 provides an installation and load-bearing basis for the entire frame-type gas-shielded electroslag furnace.

[0075] The smelting station 20 is installed on the equipment foundation 1 and is fixed to the equipment foundation 1 by bolts. A crystallizer is provided in the smelting station 20, and the electroslag remelting process of the metal electrode is carried out in the crystallizer in the smelting station 20.

[0076] The lower fume hood 18 is located above the smelting station 20 , with the lower end of the lower fume hood 18 abutting against the upper end of the smelting station 20 , and the central axis of the lower fume hood 18 coincident with the central axis of the smelting station 20 .

[0077] The upper smoke cover 17 is located above the lower smoke cover 18 , the lower end of the upper smoke cover 17 is in contact with the upper end of the lower smoke cover 18 , and the central axis of the upper smoke cover 17 coincides with the central axis of the lower smoke cover 18 .

[0078] The lower end of the work platform column 2 is installed on the equipment foundation 1 and is connected and fixed to the equipment foundation 1 by welding.

[0079] The working platform 3 is located above the working platform columns 2 and is connected and fixed to several working platform columns 2 by welding.

[0080] The control room 4 is arranged above the working platform 3 and on one side of the smelting station 20 .

[0081] The transformer room 5 is provided directly above the control room 4 .

[0082] In order to achieve the above technical effects, the frame type gas shielded electroslag furnace in this embodiment is as follows: Figures 1 to 7 As shown, the "C"-shaped frame structure 300 further includes:

[0083] The rotary track 22 is arranged above the working platform 3 of the frame structure 100 and on the side opposite to the control room 4;

[0084] The rigid frame drive device 19 is located above the working platform 3. The driving wheel set 191 and the driven wheel set 192 of the rigid frame drive device 19 are both located on the rotating track 22. The rigid frame drive device 19 moves back and forth along the rotating track 22.

[0085] The rigid frame 16 is located above the rigid frame driving device 19 and is connected and fixed to the rigid frame driving device 19 by bolts;

[0086] The furnace head rotary support 6 is located above the working platform 3 and in front of the control room 4. One end of the furnace head rotary support 6 is connected and fixed to the working platform 3 by welding; the other end of the furnace head rotary support 6 is connected to the furnace head 7;

[0087] One side of the burner head 7 is fixedly connected to the rigid frame 16 by bolts, and the other side of the burner head 7 is fixedly connected to the burner head rotary support seat 6 by bolts; the burner head 7 is located above the upper smoke hood 17.

[0088] Such a structure is composed of a rigid frame driving device 19, a rigid frame 16, a furnace head 7, and a furnace head rotary support seat 6 to form a "C"-shaped frame. The weight on the furnace head 7 can be doubly borne by the rigid frame 16 and the furnace head rotary support seat 6, which has higher structural stability and solves the problems that the furnace is prone to nodding after clamping the electrode, it is difficult to adjust the horizontal position of the metal electrode, and it is difficult to keep the metal electrode in the center of the crystallizer at all times, resulting in arcing between the metal electrode and the crystallizer, or even breakdown of the crystallizer.

[0089] In addition, since the frame-type gas-shielded electric slag furnace adopts a dual-bearing design structure of the rigid frame 16 and the furnace head rotary support seat 6, it can share the bearing capacity of the furnace head rotary support seat 6, extend the working life of the mechanical parts of the rotating part of the furnace head rotary support seat 6, and reduce the maintenance frequency and maintenance cost.

[0090] In order to achieve the above technical effects, the frame type gas shielded electroslag furnace in this embodiment is as follows: Figures 1 to 7 As shown, it also includes:

[0091] The XY centering device 24 is located on the upper end surface of the furnace head 7. The XY centering device 24 is connected to the conductive copper shaft 8 to accurately adjust the position of the conductive copper shaft 8 in the X direction and the Y direction.

[0092] The A-frame 9 is arranged above the XY centering device 24;

[0093] The lifting drive device 10 is arranged on the top of the A-frame 9;

[0094] The conductive copper shaft 8 is located below the lifting drive device 10. An electrode clamping mechanism 81 is provided at the end of the conductive copper shaft 8.

[0095] Since the frame-type gas-shielded electroslag furnace provided in this embodiment adopts a conductive copper shaft device and is equipped with a conductive copper shaft XY centering device, the position between the metal electrode clamped by the conductive copper shaft and the crystallizer can be precisely adjusted and controlled during the smelting process, so that the metal electrode is always in the center of the crystallizer, reducing arc fluctuations, improving conductive performance, and ensuring a stable smelting process.

[0096] In order to achieve the above technical effects, the frame type gas shielded electroslag furnace in this embodiment is as follows: Figures 1 to 7 As shown, it also includes:

[0097] The first ladder 14 is provided between the working platform 3 and the furnace head maintenance work platform on the upper surface of the rigid frame 16, is located outside the rigid frame 16, and is connected and fixed to the rigid frame 16 by bolts. The upper half of the first ladder 14 is provided with a guardrail.

[0098] The first fence 13 is provided on the upper surface of the rigid frame 16 and is connected and fixed to the rigid frame 16 by bolts. The first fence 13 encloses the furnace head maintenance work platform on the upper surface of the rigid frame 16 into a closed area.

[0099] The second ladder 12 is provided between the maintenance work platform on the upper surface of the rigid frame 16 and the maintenance work platform on the upper part of the A-frame 9, located on one side of the A-frame 9 and connected to the A-frame 9 by a triangular fixing frame. The upper half of the second ladder 12 is provided with a guardrail.

[0100] The second fence 11 is set on the upper surface of the maintenance work platform on the A-frame 9, enclosing the maintenance work platform on the A-frame 9 into a closed area. The maintenance work platform on the A-frame 9 is connected and fixed to the A-frame 9 through a triangular fixing frame.

[0101] Because the frame-type gas-shielded electroslag furnace provided by the present invention is equipped with ladders with guardrails and maintenance platforms with fences at multiple locations, maintenance personnel can conveniently climb the ladders from the work platform to the furnace head maintenance platform, and from the furnace head maintenance platform to the maintenance platform on the A-frame. Furthermore, the ladder guardrails and maintenance platform fences ensure the safety of maintenance personnel during climbing and maintenance operations. This structural design provides a safer working space and more convenient working conditions for subsequent maintenance of the furnace.

[0102] In order to achieve the above technical effects, the frame type gas shielded electroslag furnace in this embodiment is as follows: Figures 1 to 7 As shown, it also includes:

[0103] The lower furnace leg 21 is installed on the equipment foundation 1 and is fixed to the equipment foundation 1 by bolts;

[0104] The upper furnace leg 15 is located below the furnace head 7, and the upper end is fixed to the furnace head 7;

[0105] The furnace leg conductive device 25 is located directly below the upper furnace leg 15. The upper end of the furnace leg conductive device 25 is connected and fixed to the bottom of the upper furnace leg 15. The lower end of the furnace leg conductive device 25 is connected and separated with the upper end of the lower furnace leg 21 through the cylinder of the furnace leg conductive device 25. During the smelting process, the furnace leg conductive device 25 acts as a current channel from the upper furnace leg 15 to the lower furnace leg 21.

[0106] The slag feeder 23 is arranged on the working platform 3 and close to the slag feeding port of the electroslag furnace, so as to facilitate adding the required slag into the electroslag furnace.

[0107] In order to achieve the above technical effects, the frame type gas shielded electroslag furnace in this embodiment is as follows: Figures 1 to 7 As shown, the four upper furnace legs 15 are evenly distributed circumferentially around the central axis of the smelting station 20 .

[0108] In order to achieve the above technical effects, the frame type gas shielded electroslag furnace in this embodiment is as follows: Figures 1 to 7 As shown, the electrode clamping mechanism 81 is a pneumatic electrode clamping mechanism, which can realize automatic clamping and has the advantages of high power and fast clamping.

[0109] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and that in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A frame type gas shielded electroslag furnace, characterized in that: include: A frame structure (100); the frame structure (100) is arranged on the frame-type gas-shielded electroslag furnace; A working platform (3), wherein the working platform (3) is arranged in the frame structure (100); A rotary track (22), wherein the rotary track (22) is arranged above the working platform (3); A "C"-shaped frame structure (300), wherein the "C"-shaped frame structure (300) is arranged on the rotary track (22); A smelting station (200), wherein a plurality of smelting stations (200) are arranged below the "C"-shaped frame structure; The "C"-shaped frame structure (300) switches among a plurality of smelting stations (200) along the rotary track (22).

2. The frame type gas shielded electroslag furnace according to claim 1, characterized in that: The frame structure (100) further comprises: Equipment foundation (1); A smelting station (20), wherein the smelting station (20) is fixed on the equipment foundation (1) and is connected and fixed to the equipment foundation 1 by bolts; a lower smoke hood (18), wherein the lower smoke hood (18) is fixed above the smelting station (20), the lower end of the lower smoke hood (18) is in contact with the upper end of the smelting station (20), and the central axis of the lower smoke hood (18) coincides with the central axis of the smelting station (20); an upper smoke cover (17), wherein the upper smoke cover (17) is fixed above the lower smoke cover (18), the lower end of the upper smoke cover (17) is in contact with the upper end of the lower smoke cover (18), and the central axis of the upper smoke cover (17) coincides with the central axis of the lower smoke cover (18); A work platform column (2), the lower end of which is mounted on the equipment foundation (1) and is connected and fixed to the equipment foundation 1 by welding; A working platform (3), the working platform (3) being located above the working platform columns (2) and being connected and fixed to a plurality of the working platform columns (2) by welding; a control room (4), the control room (4) being arranged above the working platform (3) and on one side of the smelting station (20); A transformer room (5), wherein the transformer room (5) is arranged above the control room (4).

3. The frame type gas shielded electroslag furnace according to claim 1, characterized in that: The "C"-shaped frame structure (300) further includes: The rotary track (22) is arranged above the working platform (3) of the frame structure (100) and on the side opposite to the control room (4); A rigid frame driving device (19), the rigid frame driving device (19) is located above the working platform (3), the driving wheel group (191) and the driven wheel group (192) of the rigid frame driving device (19) are both located on the rotating track (22); the rigid frame driving device (19) moves back and forth along the rotating track (22); A rigid frame (16), the rigid frame (16) being located above the rigid frame driving device (19) and being connected and fixed to the rigid frame driving device (19) by bolts; A burner head rotary support seat (6), one end of the burner head rotary support seat (6) is fixed above the working platform (3); the other end of the burner head rotary support seat (6) is connected to the burner head (7); A burner head (7), one side of the burner head 7 is connected and fixed to the rigid frame (16) by bolts, and the other side of the burner head (7) is connected and fixed to the burner head rotary support seat (6); the burner head (7) is located above the upper smoke hood (17).

4. The frame type gas shielded electroslag furnace according to claim 3, characterized in that: Also includes: An XY centering device (24), the XY centering device (24) being located on the upper end surface of the furnace head (7), the XY centering device (24) being connected to the conductive copper shaft (8) to accurately adjust the position of the conductive copper shaft (8) in the X direction and the Y direction; An A-frame (9), the A-frame (9) being arranged above the XY centering device (24); A lifting drive device (10), the lifting drive device (10) being arranged on the top of the A-frame (9); A conductive copper shaft (8), the conductive copper shaft (8) is located below the lifting drive device (10); an electrode clamping mechanism (81) is provided at the end of the conductive copper shaft (8).

5. The frame type gas shielded electroslag furnace according to claim 3, characterized in that: Also includes: a first ladder (14), the first ladder (14) being arranged between the working platform (3) and the furnace head maintenance work platform on the upper surface of the rigid frame (16), being located outside the rigid frame (16), and being connected and fixed to the rigid frame (16) by bolts, and the upper half of the first ladder (14) being provided with a guardrail; a first fence (13), the first fence (13) being arranged on the upper surface of the rigid frame (16) and being connected and fixed to the rigid frame (16) by bolts, the first fence (13) enclosing the furnace head maintenance work platform on the rigid frame (16) into a closed area; a second ladder (12), the second ladder (12) being arranged between the maintenance work platform on the upper surface of the rigid frame (16) and the maintenance work platform on the upper portion of the A-frame (9), being located on one side of the A-frame (9), and being connected and fixed to the A-frame (9) via a triangular fixing frame, the upper half of the second ladder (12) being provided with a guardrail; a second fence (11), the second fence (11) being arranged on the upper surface of the maintenance work platform on the upper portion of the A-frame (9), enclosing the maintenance work platform on the upper portion of the A-frame (9) into a closed area; The maintenance operation platform on the upper portion of the A-shaped frame (9) is connected and fixed to the A-shaped frame (9) via a triangular fixing frame.

6. The frame type gas shielded electroslag furnace according to claim 2, characterized in that: Also includes: A lower furnace leg (21), the lower furnace leg (21) being installed on the equipment foundation (1) and being connected and fixed to the equipment foundation (1) by bolts; An upper furnace leg (15), the upper furnace leg (15) is located below the furnace head (7), and the upper end is fixed to the furnace head (7); A furnace leg conductive device (25), the furnace leg conductive device (25) is located directly below the upper furnace leg (15), the upper end of the furnace leg conductive device (25) is connected and fixed to the bottom of the upper furnace leg (15), and the lower end of the furnace leg conductive device (25) is connected to and separated from the upper end of the lower furnace leg (21) through the cylinder provided by the furnace leg conductive device (25); A slag feeder (23) is provided on the working platform (3) and is close to a slag feeding port of the electroslag furnace.

7. The frame type gas shielded electroslag furnace according to claim 6, characterized in that: The four upper furnace legs (15) are evenly distributed circumferentially around the central axis of the smelting station (20).

8. The frame type gas shielded electroslag furnace according to claim 4, characterized in that: The electrode clamping mechanism (81) is a pneumatic electrode clamping mechanism.

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