Electric arc furnace for producing fused magnesium

Abstract

The utility model discloses an electric arc furnace for producing fused magnesium, and relates to the technical field of industrial magnesium production. The furnace comprises a furnace body, a preheating assembly is arranged at the front end of the furnace body, a furnace cover is movably connected to the top of the furnace body, and a heating assembly is further arranged on the furnace cover; a water tank in the preheating assembly is fixedly connected to the lower portion of the front end face of the furnace body, and multiple sets of coiled pipes are fixedly connected to the lower portion in the water tank at equal intervals in the vertical direction. High-temperature gas in the furnace body is recycled through the coiled pipe and the connecting pipe in the preheating assembly and guided into the water tank to heat water, meanwhile, raw ore is cleaned and preheated through hot water, and the problem that waste heat in high-temperature tail gas generated by the furnace body is inconvenient to recycle in the prior art is solved. And the sliding block and the electrode are driven to ascend and descend through the lifting motor and the lead screw in the heating assembly, and the problem that the position of the electrode in the furnace body is inconvenient to adjust in the prior art is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial magnesium production, in particular to an electric arc furnace for producing fused magnesium. Background Art

[0002] Magnesium is a metal element with strong reducing properties. It is often used as a reducing agent to replace metals such as titanium, zirconium, uranium, and beryllium. It is also commonly used to manufacture light metal alloys, ductile iron, scientific instruments, and Grignard reagents. It can be used as an alloy material for aircraft and missiles. In the process of industrial magnesium production, electric arc furnaces are often used. Electric arc furnaces are electric furnaces that use the high temperature generated by electrode arcs to melt ores and metals.

[0003] The existing document with the publication number CN116105491A discloses an electric arc furnace for fused magnesium production, including a furnace body, the furnace body including an outer furnace body and an inner furnace body, the inner furnace body is cylindrical, penetrates the top wall of the outer furnace body and is fixedly connected to the outer furnace body, and a circular hole is provided on the top wall, an annular cavity is provided on the side wall of the circular hole, and an electric melt discharge hole is provided on the right side of the lower end of the inner furnace body; a notch is provided on the right side of the lower end of the outer furnace body; a rotating part, the rotating part includes an active component, a passive component and a rotating component, the active component is located in the right end of the annular cavity, and includes a motor, a driving shaft and a driving gear plate, the passive component is located in the left end of the annular cavity, and the rotating component is located in the circular hole, which is rotatably connected to the inner wall of the annular cavity, and is meshed with the active component and the passive component respectively;

[0004] However, it still has the following disadvantages in actual use:

[0005] The electric arc furnace described above has a rotating part on the top of the furnace body and a molten metal discharge part on the bottom of the furnace body. The raw ore in the furnace body is electro-melted by the electrodes in the rotating part, and the molten metal is discharged through the molten metal discharge part. However, during use, it is not convenient to recover and utilize the waste heat of the tail gas generated during the electro-melting process, resulting in a large amount of heat being wasted.

[0006] The electric arc furnace mentioned above has a rotating assembly including a center cover, a stuffing cover, an electrode, an outer gear ring and a plurality of ball racks, and the electrode penetrates the center cover and is detachably connected thereto. The electrode is installed through the center cover and is driven to rotate in the furnace body. However, during use, it is not convenient to adjust the height of the electrode in the furnace body, which makes it inconvenient to perform electric melting of different quantities of raw ores.

[0007] To this end, we provide an electric arc furnace for producing fused magnesium to solve the above problems. Utility Model Content

[0008] The utility model aims to provide an electric arc furnace for producing fused magnesium, which recovers the high-temperature gas in the furnace body through the serpentine pipe and the connecting pipe in the preheating assembly and introduces it into the water tank to heat the water, and at the same time uses the hot water to clean and preheat the raw ore, thereby solving the problem that it is inconvenient to recover and utilize the waste heat in the high-temperature tail gas generated by the furnace body. The lifting motor and the screw rod in the heating assembly drive the slider and the electrode to rise and fall, thereby solving the problem that it is inconvenient to adjust the position of the electrode in the furnace body.

[0009] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0010] The utility model discloses an electric arc furnace for producing fused magnesium, comprising a furnace body, a preheating assembly is arranged at the front end of the furnace body, a furnace cover is movably connected to the top of the furnace body, and a heating assembly is also arranged on the furnace cover;

[0011] The water tank in the preheating assembly is fixedly connected to the bottom of the front end surface of the furnace body, and multiple groups of serpentine tubes are fixedly connected at equal intervals along the vertical direction at the bottom of the water tank. Both ends of the serpentine tubes penetrate the front end surface of the water tank and are fixedly connected to the diverter and the combiner respectively. One side of the diverter and the combiner is fixedly connected to the connecting pipe and the discharge pipe respectively. The top of the water tank is also movably connected to a placement frame.

[0012] The mounting plate in the heating assembly is embedded in the center position of the surface of the furnace cover, and a rotating plate is rotatably connected to the inner side of the mounting plate. Multiple groups of electrodes are movably penetrated through the center position of the surface of the rotating plate at equal intervals in the horizontal direction, and a mounting frame is fixedly connected to the rear end of the upper surface of the rotating plate, and a lifting motor is fixedly connected to the top of the mounting frame. The output shaft of the lifting motor rotates through the top of the mounting frame and is fixedly connected to a lead screw through a coupling, and the bottom end of the lead screw is rotatably connected to the inner bottom of the mounting frame, and a slider is threadedly sleeved on the outer wall of the lead screw, and a rear clamping block is fixedly connected to the front end of the rear clamping block, and the front clamping block is fixedly connected to the front and rear ends of the top end of the electrode respectively.

[0013] The utility model is further configured as follows: an exhaust pipe is passed through the top of the front end surface of the furnace body, the front end of the exhaust pipe is fixedly connected to the end of the connecting pipe away from the diverter through a reducer, a liquid outlet pipe is passed through the bottom center of the furnace body, the end of the liquid outlet pipe located inside the furnace body is fixedly connected to a filter screen, the end of the liquid outlet pipe located outside the furnace body is fixedly connected to a liquid outlet valve, and support rods are fixedly connected all around the bottom of the furnace body.

[0014] The utility model is further configured as follows: a first L-shaped plate is welded at the center position of the outer walls on both sides of the water tank, a first hydraulic cylinder is fixedly connected to the horizontal support arm of the first L-shaped plate, a second L-shaped plate is fixedly connected to the piston shaft of the first hydraulic cylinder, and the vertical support arms of the second L-shaped plate are respectively fixedly connected to the top two sides of the placement frame.

[0015] The utility model is further configured as follows: a cover plate is fixedly connected to the top center position of the placement frame, and a plurality of groups of fans are penetrated at the center position of the surface of the cover plate at equal intervals in the horizontal direction.

[0016] The utility model is further configured as follows: a third L-shaped plate is welded on both side outer walls of the furnace body, a second hydraulic cylinder is fixedly connected to the horizontal support arms of the third L-shaped plate, a fourth L-shaped plate is fixedly connected to the piston shaft of the second hydraulic cylinder, and a vertical support arm of the fourth L-shaped plate is respectively fixedly connected to both side outer walls of the furnace cover.

[0017] The utility model is further configured as follows: first positioning holes are opened around the top of the furnace body, first positioning columns are gap-fitted inside the first positioning holes, and top ends of the first positioning columns are respectively welded around the bottom of the furnace cover.

[0018] The utility model is further configured as follows: a groove is provided on the inner side surface of the mounting plate, a protrusion is movably connected inside the groove, one side of the protrusion passes through the groove and is welded to the outer side surface of the rotating plate, an outer gear ring is welded to the outer side of the upper surface of the rotating plate, one side of the upper surface of the mounting plate is fixedly connected to a rotating motor through a motor frame, a gear is sleeved on the output shaft of the rotating motor, and the gear is meshingly connected to one side of the outer gear ring.

[0019] The utility model is further configured as follows: a plurality of sets of sleeves are passed through the center position of the surface of the rotating plate at equal intervals in the horizontal direction; the bottom end of the electrode movably passes through the sleeve; second positioning holes are provided on the front and rear end surfaces of the top end of the electrode; second positioning columns are gap-fitted inside the second positioning holes; one end of the second positioning column is respectively welded to one end of the rear clamping block and the front clamping block close to the electrode.

[0020] The utility model is further configured as follows: ear seats are welded on both side outer walls of the rear clamping block and the front clamping block, and the front and rear adjacent ear seats are fixedly connected by stud bolts.

[0021] The utility model has the following beneficial effects:

[0022] The utility model provides a preheating component, and guides the high-temperature tail gas in the furnace body into the serpentine pipe through the connecting pipe, and heats the water in the water tank through the serpentine pipe, then puts the raw ore into the placing frame, and puts the placing frame into the water, so that the raw ore is cleaned and preheated by the hot water, and the waste heat in the tail gas is recovered and reused, which reduces the energy consumption, improves the energy utilization rate, and reduces the production cost.

[0023] The utility model arranges a heating component, drives the electrode to rotate in the furnace body through a rotating plate, drives the lead screw to rotate through a lifting motor, and under the action of the threaded connection between the lead screw and the slider, the rear clamping block and the front clamping block drive the electrode to rise and fall, thereby adjusting the position of the electrode in the furnace body, facilitating the adjustment of the position of the electrode in the furnace body according to the amount of raw ore in the furnace body, and facilitating the electric melting of the raw ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of an electric arc furnace for producing fused magnesium;

[0026] Figure 2 It is a side cross-sectional view of the furnace body of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the preheating component of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the serpentine tube of the utility model;

[0029] Figure 5 This is a structural disassembly diagram of the placement frame of the utility model;

[0030] Figure 6 This is a schematic diagram of the structure of the furnace cover of the utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the heating component of the utility model;

[0032] Figure 8 This is a schematic diagram of the structure of the mounting plate of the utility model;

[0033] Fig. 9 This is a structural disassembly diagram of the rotating plate of the utility model;

[0034] Fig.10 This is a schematic diagram of the structure of the installation frame of the utility model;

[0035] Fig.11 It is a schematic diagram of the installation between the rear clamping block and the front clamping block of the utility model.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 1-furnace body, 101-exhaust pipe, 101a-reducing pipe, 102-liquid outlet pipe, 102a-filter, 102b-liquid outlet valve, 103-support rod, 104-first positioning hole, 2-preheating assembly, 201-water tank, 202-serpentine pipe, 202a-diverter, 202b-combiner, 203-connecting pipe, 204-discharge pipe, 205-placing frame, 205a-first L-shaped plate, 205b-first hydraulic cylinder, 205c-second L-shaped plate, 206-cover plate, 206a-fan, 3-furnace cover, 301-third L-shaped plate, 302-second liquid Cylinder, 303-fourth L-shaped plate, 304-first positioning column, 4-heating assembly, 401-mounting plate, 401a-groove, 402-rotating plate, 402a-bump, 402b-outer gear ring, 402c-sleeve, 403-electrode, 403a-second positioning hole, 404-mounting frame, 405-lifting motor, 406-screw, 407-slider, 408-rear clamping block, 408a-second positioning column, 408b-ear seat, 408c-stud bolt, 409-front clamping block, 410-rotating motor, 410a-motor frame, 410b-gear. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0040] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it is the first embodiment of the utility model, which provides an electric arc furnace for molten magnesium production, including a furnace body 1, a preheating component 2 and a furnace cover 3, and the preheating component 2 includes a water tank 201, a serpentine pipe 202, a connecting pipe 203 and a placement frame 205. The tail gas is introduced into the water tank 201 through the serpentine pipe 202 and the connecting pipe 203, and the original ore is cleaned and preheated through the water tank 201 and the placement frame 205, which solves the existing problem of inconvenience in recovering and reusing the waste heat in the tail gas.

[0041] Specifically, the water tank 201 is fixedly connected to the lower front end surface of the furnace body 1, and multiple groups of serpentine tubes 202 are fixedly connected at equal intervals vertically inside the lower part of the water tank 201. Both ends of the serpentine tubes 202 penetrate the front end surface of the water tank 201 and are fixedly connected to the diverter 202a and the combiner 202b, respectively. One side of the diverter 202a and the combiner 202b is fixedly connected to the connecting pipe 203 and the discharge pipe 204, respectively. The upper part of the water tank 201 is also movably connected to the placement frame 205. It is configured to store water, the serpentine tube 202 is configured to heat the water in the water tank 201, the diverter 202a and the combiner 202b are configured to evenly distribute the high-temperature exhaust gas to multiple groups of serpentine tubes 202 and to concentrate the exhaust gas in the serpentine tubes 202 together, the connecting pipe 203 is configured to connect the serpentine tubes 202 with the exhaust pipe 101, the discharge pipe 204 is configured to discharge the exhaust gas after heat exchange, and the placement frame 205 is configured to place the raw ore.

[0042] Furthermore, an exhaust pipe 101 is passed through the front end of the furnace body 1, and the front end of the exhaust pipe 101 is fixedly connected to an end of the connecting pipe 203 away from the diverter 202a through a reducer 101a. The exhaust pipe 101 is used to discharge the high-temperature exhaust gas in the furnace body 1, and the reducer 101a is used to connect the exhaust pipe 101 and the connecting pipe 203.

[0043] A liquid outlet pipe 102 is passed through the center of the bottom of the furnace body 1. A filter screen 102a is fixedly connected to one end of the liquid outlet pipe 102 located inside the furnace body 1. A liquid outlet valve 102b is fixedly connected to one end of the liquid outlet pipe 102 located outside the furnace body 1. The liquid outlet pipe 102 and the liquid outlet valve 102b are used to discharge the molten liquid in the furnace body 1. The filter screen 102a is provided to prevent slag from entering the liquid outlet pipe 102 and causing blockage.

[0044] Support rods 103 are fixedly connected to the bottom of the furnace body 1 on all sides, and the support rods 103 are used to support the furnace body 1;

[0045] The first L-shaped plate 205a is welded at the center of the outer wall on both sides of the water tank 201, the first hydraulic cylinder 205b is fixedly connected to the horizontal arm of the first L-shaped plate 205a, the piston shaft of the first hydraulic cylinder 205b is fixedly connected to the second L-shaped plate 205c, the vertical arms of the second L-shaped plate 205c are respectively fixedly connected to the top two sides of the placement frame 205, the first L-shaped plate 205a and the second L-shaped plate 205c are used to connect the first hydraulic cylinder 205b to the water tank 201 and the placement frame 205 respectively, and the first hydraulic cylinder 205b is used to drive the placement frame 205 to rise and fall in the water tank 201;

[0046] A cover plate 206 is fixedly connected to the top center of the placement frame 205. A plurality of sets of fans 206a are traversed at equal intervals in the horizontal direction at the center of the surface of the cover plate 206. The cover plate 206 is used to seal the placement frame 205, and the fans 206a are used to accelerate the drying of the raw ore.

[0047] A third L-shaped plate 301 is welded on both side outer walls of the furnace body 1, and a second hydraulic cylinder 302 is fixedly connected to the transverse support arms of the third L-shaped plate 301, and a fourth L-shaped plate 303 is fixedly connected to the piston shaft of the second hydraulic cylinder 302, and the vertical support arms of the fourth L-shaped plate 303 are respectively fixedly connected to the outer walls of both sides of the furnace cover 3, and the third L-shaped plate 301 and the fourth L-shaped plate 303 are respectively used to connect the second hydraulic cylinder 302 to the furnace body 1 and the furnace cover 3, and the second hydraulic cylinder 302 is used to drive the furnace cover 3 to move relative to the furnace body 1;

[0048] First positioning holes 104 are provided around the top of the furnace body 1, and first positioning columns 304 are gap-fitted inside the first positioning holes 104. The top ends of the first positioning columns 304 are respectively welded around the bottom of the furnace cover 3. The first positioning holes 104 and the first positioning columns 304 are provided to position the furnace cover 3 and the furnace body 1.

[0049] The operation process of this embodiment is as follows: first, the raw ore to be electro-melted is placed in the placement frame 205, and the first hydraulic cylinder 205b is started. The placement frame 205 is driven by the first hydraulic cylinder 205b to move to the inner side of the water tank 201 until the liquid level overflows the placement frame 205, and then the high-temperature exhaust gas in the furnace body 1 is introduced into the diverter 202a through the connecting pipe 203. The high-temperature exhaust gas is evenly distributed into the serpentine pipe 202 through the diverter 202a, so that the water in the water tank 201 is heated by the serpentine pipe 202, and the raw ore is preheated by the hot water in the water tank 201. Finally, the exhaust gas after heat exchange enters the discharge pipe 204 through the combiner 202b, and is discharged into the exhaust gas treatment device through the discharge pipe 204. Specific embodiment 2

[0051] See also Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11As shown, it is the second embodiment of the utility model, which is based on the previous embodiment, but is different from the previous embodiment in that a heating component 4 is also arranged on the furnace cover 3, and the heating component 4 includes a mounting plate 401, a rotating plate 402, an electrode 403, a mounting frame 404, a lifting motor 405, a screw rod 406, a slider 407, a rear clamping block 408 and a front clamping block 409. The slider 407 is lifted and lowered by the lifting motor 405 and the screw rod 406, and the electrode 403 is lifted and lowered by the rear clamping block 408 and the front clamping block 409, thereby solving the existing problem of inconvenience in adjusting the position of the electrode 403 in the furnace body 1.

[0052] Specifically, the mounting plate 401 is embedded in the center position of the surface of the furnace cover 3, and the inner side of the mounting plate 401 is rotatably connected to a rotating plate 402, and the center position of the surface of the rotating plate 402 is movably penetrated with multiple groups of electrodes 403 at equal intervals in the horizontal direction, and the rear end of the upper surface of the rotating plate 402 is fixedly connected to a mounting frame 404, and the top of the mounting frame 404 is fixedly connected to a lifting motor 405, and the output shaft of the lifting motor 405 rotates through the top of the mounting frame 404 and is fixedly connected to a screw rod 406 through a coupling, and the bottom end of the screw rod 406 is rotatably connected to the inner bottom of the mounting frame 404, and a slider 407 is threadedly sleeved on the outer wall of the screw rod 406, and a rear clamping block 408 is fixedly connected to the front end of the slider 407. The front end of the rear clamp block 408 is fixedly connected to the front clamp block 409, and the rear clamp block 408 and the front clamp block 409 are respectively clamped at the front and rear ends of the top of the electrode 403, the installation plate 401 and the rotating plate 402 are used to rotatably install the electrode 403, and the electrode 403 is used to perform arc heating on the ore in the furnace body 1, the installation frame 404 is used to install the lifting motor 405 and the screw rod 406, the lifting motor 405 is used to drive the screw rod 406 to rotate, and the screw rod 406 and the slider 407 are used to drive the rear clamp block 408 and the front clamp block 409 to lift and lower, and the electrode 403 is installed by the arrangement of the rear clamp block 408 and the front clamp block 409.

[0053] Furthermore, a groove 401a is provided on the inner side of the mounting plate 401, and a protrusion 402a is movably connected inside the groove 401a. One side of the protrusion 402a passes through the groove 401a and is welded to the outer side of the rotating plate 402. The arrangement of the groove 401a and the protrusion 402a realizes the rotating connection between the mounting plate 401 and the rotating plate 402.

[0054] An outer gear ring 402b is welded to the outer side of the upper surface of the rotating plate 402, and a rotating motor 410 is fixedly connected to one side of the upper surface of the mounting plate 401 through a motor frame 410a. A gear 410b is sleeved on the output shaft of the rotating motor 410, and the gear 410b is meshedly connected to one side of the outer gear ring 402b. The outer gear ring 402b is used to drive the rotating plate 402 to rotate, and the rotating motor 410 and the gear 410b are used to drive the outer gear ring 402b to rotate, and the motor frame 410a is used to install the rotating motor 410;

[0055] A plurality of sets of sleeves 402c are equidistantly passed through the center of the surface of the rotating plate 402 in the horizontal direction, and the bottom end of the electrode 403 is movably passed through the sleeve 402c. The sleeve 402c is used to movably pass the bottom end of the electrode 403 through the rotating plate 402; second positioning holes 403a are provided on the front and rear end surfaces of the top of the electrode 403, and second positioning columns 408a are gap-fitted inside the second positioning holes 403a. One end of the second positioning column 408a is respectively welded to one end of the rear clamping block 408 and the front clamping block 409 close to the electrode 403. The second positioning hole 403a and the second positioning column 408a are used to position the electrode 403 between the rear clamping block 408 and the front clamping block 409;

[0056] Ear seats 408b are welded on the outer walls of both sides of the rear clamping block 408 and the front clamping block 409. The front and rear adjacent ear seats 408b are fixedly connected by stud bolts 408c. The ear seats 408b and the stud bolts 408c are used to fix the rear clamping block 408 and the front clamping block 409.

[0057] The rest of the structure is the same as that of the first embodiment.

[0058] The operation process of this embodiment is as follows: first, the raw ore is placed in the furnace body 1 and the furnace cover 3 is closed. Then, the position of the electrode 403 is adjusted according to the amount of raw ore, and the lifting motor 405 is started. The output shaft of the lifting motor 405 drives the screw rod 406 to rotate synchronously, and under the action of the threaded connection between the screw rod 406 and the slider 407, the slider 407 drives the electrode 403 to be lifted and lowered through the rear clamp block 408 and the front clamp block 409. When the electrode 403 moves to the specified position, the lifting motor 405 is turned off. Finally, the power supply of the electrode 403 is turned on, and the rotating motor 410 is started. The raw ore in the furnace body 1 is arc heated by the energized electrode 403, and the gear 410b is driven to rotate by the rotating motor 410, and the rotating plate 402 and the electrode 403 are driven to rotate through the meshing connection between the outer gear ring 402b and the gear 410b, thereby realizing the electric melting of the magnesium ore.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An electric arc furnace for producing fused magnesium, comprising a furnace body (1), a preheating assembly (2) being arranged at the front end of the furnace body (1), and a furnace cover (3) being movably connected to the top of the furnace body (1), and a heating assembly (4) being arranged on the furnace cover (3), characterized in that: The water tank (201) in the preheating component (2) is fixedly connected to the bottom of the front end surface of the furnace body (1), and a plurality of groups of serpentine tubes (202) are fixedly connected to the bottom of the water tank (201) at equal intervals in the vertical direction, both ends of the serpentine tubes (202) penetrate the front end surface of the water tank (201) and are respectively fixedly connected to a diverter (202a) and a combiner (202b), and one side of the diverter (202a) and the combiner (202b) are respectively fixedly connected to a connecting pipe (203) and a discharge pipe (204), and a placement frame (205) is also movably connected to the top of the water tank (201); The mounting plate (401) in the heating component (4) is embedded in the center position of the surface of the furnace cover (3), and the inner side of the mounting plate (401) is rotatably connected to a rotating plate (402), and the center position of the surface of the rotating plate (402) is movably penetrated by multiple groups of electrodes (403) at equal intervals in the horizontal direction, and the rear end of the upper surface of the rotating plate (402) is fixedly connected to a mounting frame (404), and the top of the mounting frame (404) is fixedly connected to a lifting motor (405), and the output shaft of the lifting motor (405) is rotated. A screw rod (406) passes through the top of the installation frame (404) and is fixedly connected via a coupling; the bottom end of the screw rod (406) is rotatably connected to the inner bottom of the installation frame (404); a slider (407) is threadedly sleeved on the outer wall of the screw rod (406); a rear clamping block (408) is fixedly connected to the front end of the slider (407); and a front clamping block (409) is fixedly connected to the front end of the rear clamping block (408); the rear clamping block (408) and the front clamping block (409) are respectively clamped at the front and rear ends of the top end of the electrode (403).

2. The electric arc furnace for producing fused magnesium according to claim 1, characterized in that: An exhaust pipe (101) passes through the upper front end surface of the furnace body (1), and the front end of the exhaust pipe (101) is fixedly connected to the end of the connecting pipe (203) away from the diverter (202a) through a reducer (101a). A liquid outlet pipe (102) passes through the center of the bottom of the furnace body (1), and the end of the liquid outlet pipe (102) located inside the furnace body (1) is fixedly connected to a filter screen (102a), and the end of the liquid outlet pipe (102) located outside the furnace body (1) is fixedly connected to a liquid outlet valve (102b), and support rods (103) are fixedly connected to the four sides of the bottom of the furnace body (1).

3. The electric arc furnace for producing fused magnesium according to claim 1, characterized in that: A first L-shaped plate (205a) is welded to the center of the outer walls on both sides of the water tank (201), and a first hydraulic cylinder (205b) is fixedly connected to the horizontal support arm of the first L-shaped plate (205a), a second L-shaped plate (205c) is fixedly connected to the piston shaft of the first hydraulic cylinder (205b), and the vertical support arms of the second L-shaped plate (205c) are respectively fixedly connected to the top two sides of the placement frame (205).

4. The electric arc furnace for producing fused magnesium according to claim 3, characterized in that: A cover plate (206) is fixedly connected to the top center of the placement frame (205), and a plurality of groups of fans (206a) are passed through the center of the surface of the cover plate (206) at equal intervals in the horizontal direction.

5. The electric arc furnace for producing fused magnesium according to claim 1, characterized in that: A third L-shaped plate (301) is welded to both side outer walls of the furnace body (1), and the lateral support arms of the third L-shaped plate (301) are fixedly connected to the second hydraulic cylinder (302), the piston shaft of the second hydraulic cylinder (302) is fixedly connected to the fourth L-shaped plate (303), and the vertical support arms of the fourth L-shaped plate (303) are respectively fixedly connected to both side outer walls of the furnace cover (3).

6. The electric arc furnace for producing fused magnesium according to claim 5, characterized in that: The top of the furnace body (1) is provided with first positioning holes (104) on all sides, and the first positioning holes (104) are loosely fitted with first positioning columns (304) inside, and the top ends of the first positioning columns (304) are respectively welded to the bottom of the furnace cover (3) on all sides.

7. The electric arc furnace for producing fused magnesium according to claim 1, characterized in that: A groove (401a) is provided on the inner side surface of the mounting plate (401), and a protrusion (402a) is movably connected inside the groove (401a), one side of the protrusion (402a) passes through the groove (401a) and is welded to the outer side surface of the rotating plate (402), and an outer gear ring (402b) is welded to the outer side of the upper surface of the rotating plate (402), one side of the upper surface of the mounting plate (401) is fixedly connected to a rotating motor (410) via a motor frame (410a), and a gear (410b) is sleeved on the output shaft of the rotating motor (410), and the gear (410b) is meshingly connected to one side of the outer gear ring (402b).

8. The electric arc furnace for producing fused magnesium according to claim 1, characterized in that: A plurality of sets of sleeves (402c) are passed through the center of the surface of the rotating plate (402) at equal intervals in the horizontal direction, the bottom end of the electrode (403) movably passes through the sleeve (402c), and second positioning holes (403a) are provided on the front and rear end surfaces of the top of the electrode (403), and a second positioning column (408a) is loosely fitted inside the second positioning hole (403a), and one end of the second positioning column (408a) is respectively welded to one end of the rear clamping block (408) and the front clamping block (409) close to the electrode (403).

9. An electric arc furnace for producing fused magnesium according to claim 8, characterized in that: Ear seats (408b) are welded on both side outer walls of the rear clamping block (408) and the front clamping block (409), and the front and rear adjacent ear seats (408b) are fixedly connected by stud bolts (408c).

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