An electric arc furnace for the production of electrosmelted magnesium

Abstract

The application relates to an electric arc furnace for electric smelting magnesium production, which comprises a furnace body, the furnace body comprises an outer furnace body and an inner furnace body, the inner furnace body is in a cylindrical shape, penetrates a top wall of the outer furnace body and is fixedly connected with the outer furnace body, a round hole is arranged on the top wall of the inner furnace body, an annular cavity is arranged on the side wall of the round hole, and an electric smelting liquid discharging hole is arranged on the right side of the lower end of the inner furnace body; a notch is arranged on the right side of the lower end of the outer furnace body; a rotating part comprises a driving assembly, a driven assembly and a rotating assembly, the driving assembly is located in the right end of the annular cavity and comprises a motor, a driving shaft and a driving gear plate, the driven assembly is located in the left end of the annular cavity, the rotating assembly is located in the round hole and is rotatably connected to the inner wall of the annular cavity and is in meshing connection with the driving assembly and the driven assembly respectively; a smelting liquid discharging part comprises a transmission assembly, a connecting rod assembly and a smelting liquid flow guide groove, the transmission assembly is movably connected with the driven assembly, and the connecting rod assembly is movably connected with the transmission assembly and the smelting liquid flow guide groove respectively.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric arc furnace, in particular to an electric arc furnace for electric smelting magnesium production. BACKGROUND

[0002] In the electric arc furnace as an electric arc furnace for smelting metal magnesium, a so-called hotspot and a cold spot are formed in the internal space of the furnace shell which contains metal material. The position of the hotspot is close to the electrode and the metal material is easy to melt at the hotspot, and the position of the cold spot is away from the electrode and the metal material is not easy to melt at the cold spot, and in the cold spot, the following problems occur: a long time is needed to melt the metal material, thus making the melting of the metal material as a whole uneven, and the melting unevenness exists that the metal magnesium at the cold spot position cannot be fully treated in a short time, or the metal magnesium at the cold spot position is in a molten state for a long time, but this way consumes more.

[0003] Therefore, it is necessary to provide an electric arc furnace for electric smelting magnesium production to solve the above technical problems. SUMMARY

[0004] (1) Technical problems to be solved

[0005] The purpose of the present application is to overcome the shortcomings of the prior art, adapt to the needs of the reality, and provide an electric arc furnace for electric smelting magnesium production to solve the above technical problems.

[0006] (2) Technical solutions

[0007] In order to achieve the purpose of the present application, the technical scheme adopted by the present application is an electric arc furnace for electric smelting magnesium production, comprising:

[0008] The furnace body comprises 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 with the outer furnace body, and the top wall of the inner furnace body is provided with a circular hole, an annular cavity is arranged on the side wall of the circular hole, and an electric smelting liquid discharge hole is arranged on the right side of the lower end of the inner furnace body; a notch is arranged on the right side of the lower end of the outer furnace body;

[0009] The rotating part comprises a driving assembly, a driven assembly and a rotating assembly, the driving assembly is located in the right end of the annular cavity and comprises a motor, a driving shaft and a driving gear plate, the motor is located outside the top wall of the inner furnace body, the upper end of the rotating shaft penetrates the inner furnace body and is connected with the motor by a key, and the rotating shaft is rotatably connected with the top wall of the inner furnace body and the bottom wall of the annular cavity, the driven assembly is located in the left end of the annular cavity, and the rotating assembly is located in the circular hole and rotatably connected with the inner wall of the annular cavity, and the rotating assembly is rotatably connected with the driving assembly and the driven assembly;

[0010] The molten metal discharging part comprises a transmission assembly, a connecting rod assembly and a molten metal guide groove, the transmission assembly is movably connected with the passive assembly, the connecting rod assembly is movably connected with the transmission assembly and the molten metal guide groove respectively, and the molten metal guide groove is slidably connected to the bottom wall of the outer furnace body.

[0011] Preferably, the passive assembly comprises a passive gear plate, a passive shaft and a first transmission wheel, the passive gear plate is located in the annular cavity, the lower end of the passive shaft penetrates the top wall of the inner furnace body and is rotatably connected therewith, and the upper end of the passive shaft is keyed to the first transmission wheel.

[0012] Preferably, the rotating assembly comprises a center cover, a filler cover, an electrode, an outer gear ring and a plurality of ball holders, the filler cover is located at the middle position of the center cover, penetrates the center cover and is detachably connected therewith, the outer gear ring is fixedly connected to the side wall of the center cover, the electrode penetrates the center cover and is detachably connected therewith, the plurality of ball holders are fixedly connected to the top wall and the bottom wall of the annular cavity, and the top wall and the bottom wall of the outer gear ring are provided with annular sliding grooves matched with the ball holders, and the outer gear ring is meshingly connected with the driving gear plate and the passive gear plate respectively.

[0013] Preferably, the transmission assembly comprises a second transmission wheel, a transmission shaft, a plurality of fixing rings, a third transmission wheel and two groups of transmission belts, the plurality of fixing rings are fixedly connected to the left side wall of the outer furnace body by connecting rods, the transmission shaft penetrates the plurality of fixing rings and is rotatably connected therewith, the second transmission wheel is keyed to the upper end of the transmission shaft, the third transmission wheel is keyed to the lower end of the transmission shaft, and the second transmission wheel is movably connected with the first transmission wheel by the transmission belts.

[0014] Preferably, the connecting rod assembly comprises a connecting rod turntable, a connecting shaft, a U-shaped connecting rod and two groups of clamping blocks, the connecting rod turntable is located at the left end of the bottom of the outer furnace body, one end of the connecting shaft is rotatably connected to the bottom wall of the outer furnace body, the other end is keyed to the connecting rod turntable, the connecting rod turntable is movably connected with the third transmission wheel by the transmission belts, the two groups of clamping blocks are fixedly connected to the top wall of the connecting rod turntable and the left side wall of the molten metal guide groove respectively, and the two ends of the U-shaped connecting rod are movably connected with the two groups of clamping blocks respectively.

[0015] Preferably, the two ends of the U-shaped connecting rod are provided with convex blocks, and the clamping blocks are provided with concave grooves matched with the convex blocks.

[0016] Preferably, the left end of the molten metal guide groove is of solid structure, and the right end thereof is in the form of a slope.

[0017] Preferably, the outer end of the electrode is coated with an insulating material.

[0018] (3) Beneficial effects:

[0019] 1. The electric arc furnace for the production of fused magnesium of the present application, by the rotation part, the center cover where the electrode is located is always in the rotating state, which makes the hot spot and cold spot of the electrode change at any time, indirectly achieving the purpose of uniform temperature in the inner furnace body.

[0020] 2. The electric arc furnace for the production of fused magnesium of the present application, by the molten liquid discharge part, the molten liquid flow groove and the rotation part are associated, and then the movement of the molten liquid flow groove is driven by the rotation of the center cover, realizing the periodic discharge of the molten liquid in the inner furnace body. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the overall structure schematic diagram of the electric arc furnace for the production of fused magnesium provided by the present application;

[0022] Figure 2 is the cross-sectional structure schematic diagram of the electric arc furnace for the production of fused magnesium provided by the present application;

[0023] Figure 3 is Figure 2 the enlarged structure schematic diagram of A in the figure;

[0024] Figure 4 is Figure 2 the enlarged structure schematic diagram of B in the figure;

[0025] The reference signs are as follows:

[0026] 1, furnace body; 10, outer furnace body; 100, notch; 11, inner furnace body; 110, round hole; 1100, annular cavity; 111, fused liquid discharge hole;

[0027] 2, rotation part; 21, driving assembly; 210, motor; 211, driving shaft; 212, driving gear plate; 22, driven assembly; 220, driven gear plate; 221, driven shaft; 222, first transmission wheel; 23, rotation assembly; 230, center cover; 231, filler cover; 232, electrode; 233, outer gear ring; 2330, annular chute; 234, ball bearing;

[0028] 3, molten liquid discharge part; 30, transmission assembly; 300, second transmission wheel; 301, transmission shaft; 302, fixed ring; 3020, connecting rod; 303, third transmission wheel; 304, transmission belt; 31, connecting rod assembly; 310, connecting rod turntable; 311, connecting shaft; 312, U-shaped connecting rod; 3120, convex block; 313, clamping block; 3130, concave groove; 32, molten liquid flow groove; DETAILED DESCRIPTION

[0029] The following will be combined with the drawings Figure 1 - the drawings Figure 4and the examples further illustrate the present application:

[0030] An electric arc furnace for producing electric smelting magnesium comprises:

[0031] A furnace body 1 comprises an outer furnace body 10 and an inner furnace body 11, the inner furnace body 11 is in a cylindrical shape, penetrates the top wall of the outer furnace body 10 and is fixedly connected with the outer furnace body 10, and a circular hole 110 is arranged on the top wall of the inner furnace body 11, an annular cavity 1100 is arranged on the side wall of the circular hole 110, and an electric smelting liquid discharge hole 111 is arranged on the right side of the lower end of the inner furnace body 11; a notch 100 is arranged on the right side of the lower end of the outer furnace body 10;

[0032] A rotating part 2 comprises a driving assembly 21, a driven assembly 22 and a rotating assembly 23, the driving assembly 21 is located in the right end of the annular cavity 1100, comprises a motor 210, a driving shaft 211 and a driving gear plate 212, the motor 210 is located outside the top wall of the inner furnace body 11, the upper end of the driving shaft 211 penetrates the inner furnace body 11 and is keyed connected with the motor 210, and the driving shaft 211 is rotatably connected with the top wall of the inner furnace body 11 and the bottom wall of the annular cavity 1100, the driven assembly 22 is located in the left end of the annular cavity 1100, the rotating assembly 23 is located in the circular hole 110 and is rotatably connected with the inner wall of the annular cavity 1100, and is meshingly connected with the driving assembly 21 and the driven assembly 22;

[0033] A smelting liquid discharge part 3 comprises a transmission assembly 30, a connecting rod assembly 31 and a smelting liquid guide groove 32, the transmission assembly 30 is movably connected with the driven assembly 22, the connecting rod assembly 31 is movably connected with the transmission assembly 30 and the smelting liquid guide groove 32, and the smelting liquid guide groove 32 is slidably connected with the bottom wall of the outer furnace body 10.

[0034] In particular, when used for the first time, first confirm that the solid portion of the molten metal flow guide groove 32 is located at the position of the electric molten metal discharge hole 111, then power on the electrode 232, and after the initial electric melting is completed, start the motor 210, which drives the rotation of the driving shaft 211 and the driving gear plate 212, and through the meshing with the outer gear ring 233, drives the rotation of the center cover 230, and then through the meshing, drives the operation of the passive assembly 22. The first transmission wheel 222 in the passive assembly 22 drives the rotation of the second transmission wheel 300 and the third transmission wheel 303 through the transmission belt 304, and the third transmission wheel 303 drives the rotation of the connecting rod rotating disc 310 through the transmission belt 304 again, thereby realizing the reciprocating motion of the molten metal flow guide groove 32 and the fixed-period electric molten metal discharge. It is worth noting that although the notch 100 in the present application adopts a rectangular shape, the notch 100 can also adopt other shapes as long as it does not affect the reciprocating motion of the molten metal flow guide groove 32 in principle.

[0035] Specifically, the passive assembly 22 includes a passive gear plate 220, a passive shaft 221 and a first transmission wheel 222. The passive gear plate 220 is located in the annular cavity 1100. The lower end of the passive shaft 221 penetrates the top wall of the inner layer furnace body 11 and is rotationally connected thereto. The upper end of the passive shaft 221 is keyed connected with the first transmission wheel 222.

[0036] Specifically, the rotating assembly 23 includes a center cover 230, a filler cover 231, an electrode 232, an outer gear ring 233 and a plurality of ball holders 234. The filler cover 231 is located at the intermediate position of the center cover 230, penetrates the center cover 230 and is detachably connected thereto. The outer gear ring 233 is fixedly connected to the side wall of the center cover 230. The electrode 232 penetrates the center cover 230 and is detachably connected thereto. A plurality of ball holders 234 are fixedly connected to the top wall and the bottom wall of the annular cavity 1100. The top wall and the bottom wall of the outer gear ring 233 are provided with annular sliding grooves 2330 matched with the ball holders 234. The outer gear ring 233 is meshingly connected with the driving gear plate 212 and the passive gear plate 220, respectively. The meshing of the outer gear ring 233 and the driving gear plate 212 fixedly connected to the side wall of the center cover 230 realizes the rotation of the center cover 230, and then drives the rotation of the electrode 232, realizes the alternation of the hot spot and the cold spot of the electrode 232, and realizes the uniform temperature of the electric molten metal. The matching of the annular sliding grooves 2330 provided on the outer gear ring 233 and the ball holders 234 ensures that the center cover can rotate smoothly without derailing.

[0037] Specifically, the transmission assembly 30 comprises a second transmission wheel 300, a transmission shaft 301, a plurality of fixed rings 302, a third transmission wheel 303 and two groups of transmission belts 304, the plurality of fixed rings 302 are fixedly connected to the left side wall of the outer furnace body 10 by connecting rods 3020 respectively, the transmission shaft 301 penetrates through the plurality of fixed rings 302 and is rotationally connected therewith, the second transmission wheel 300 is keyed to the upper end of the transmission shaft 301, the third transmission wheel 303 is keyed to the lower end of the transmission shaft 301, and the second transmission wheel 300 is movably connected with the first transmission wheel 222 through the transmission belts 304; the second transmission wheel 300 rotates synchronously with the first transmission wheel 222 through the transmission belts 304, and drives the rotation of the third transmission wheel 303 through the transmission shaft 301, and the fixed rings 302 and the connecting rods 3020 are arranged to fix the position of the connecting shaft 301.

[0038] Specifically, the connecting rod assembly 31 comprises a connecting rod turntable 310, a connecting shaft 311, a U-shaped connecting rod 312 and two groups of clamping blocks 313, the connecting rod turntable 310 is located at the bottom left end of the outer furnace body 10, one end of the connecting shaft 311 is rotationally connected to the bottom wall of the outer furnace body 10, the other end is keyed to the connecting rod turntable 310, the connecting rod turntable 310 is movably connected with the third transmission wheel 303 through the transmission belt 304, two groups of clamping blocks 313 are fixedly connected to the top wall of the connecting rod turntable 310 and the left side wall of the molten metal flow guide groove 32 respectively, and the two ends of the U-shaped connecting rod 312 are movably connected with the two groups of clamping blocks 313 respectively; the connecting rod turntable 310 makes a circular motion under the driving of the transmission belt 304, and the clamping blocks 313 thereon also make a circular motion, the clamping block 313 fixedly connected to the left side wall of the molten metal flow guide groove 32 is rotationally connected with the clamping block 313 making a circular motion through the U-shaped connecting rod 312, and since the movement track of the molten metal flow guide groove 32 can only slide left and right, the molten metal flow guide groove 32 makes a nonlinear reciprocating motion under the driving of the U-shaped connecting rod 312, when the right end thereof is pushed out of the gap 100, the actual core part thereof contacts the electric molten metal discharge hole 111 to play a plugging role, and when the right end thereof is pulled back, the inclined part thereof contacts the electric molten metal discharge hole 111 to play a flow guiding role, so that the well-melted electric molten metal can be discharged in time.

[0039] Specifically, the U-shaped connecting rod 312 is provided with convex blocks 3120 at the two ends thereof, and the clamping blocks 313 are provided with concave grooves 3130 matched with the convex blocks 3120; through the matching of the convex blocks 3120 provided on the U-shaped connecting rod 312 and the concave grooves 3130 provided on the clamping blocks 313, the U-shaped connecting rod 312 can be in different motion states without derailing.

[0040] Specifically, the left end of the solution flow guide groove 32 is solid, and the right end is in a slope shape. The solid part contacts the electric melt discharge hole 111 to play a blocking role, and the slope part overlaps the electric melt discharge hole 111 to play a flow guiding role.

[0041] Specifically, the upper end of the electrode 232 is coated with an insulating material, and the insulating material at the upper end of the electrode 232 ensures that there is no electric arc phenomenon outside the device, thereby reducing the risk of equipment use.

[0042] The embodiments of the present application disclose the preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of the present application according to the above embodiments, and make different inferences and changes, as long as they do not deviate from the spirit of the present application, and are within the protection scope of the present application.

Claims

1. An electric arc furnace for fused magnesium production, characterized in that, include: The furnace body (1) includes an outer furnace body (10) and an inner furnace body (11). The inner furnace body (11) is cylindrical, penetrates the top wall of the outer furnace body (10) and is fixedly connected to the outer furnace body (10). Its top wall is provided with a round hole (110). The side wall of the round hole (110) is provided with an annular cavity (1100). The lower right side of the inner furnace body (11) is provided with an electrofused liquid discharge hole (111). The lower right side of the outer furnace body (10) is provided with a notch (100). The rotating part (2) includes an active component (21), a passive component (22), and a rotating component (23). The active component (21) is located inside the right end of the annular cavity (1100) and includes a motor (210), a drive shaft (211), and a drive gear disk (212). The motor (210) is located outside the top wall of the inner furnace body (11). The upper end of the rotating shaft (211) penetrates the inner furnace body (11) and connects with the motor. (210) Key connection, and the rotating shaft (211) is rotatably connected to the top wall of the inner furnace body (11) and the bottom wall of the annular cavity (1100) respectively. The passive component (22) is located in the left end of the annular cavity (1100), and the rotating component (23) is located in the round hole (110). It is rotatably connected to the inner wall of the annular cavity (1100), and it is meshed with the active component (21) and the passive component (22) respectively. The molten metal discharge section (3) includes a transmission assembly (30), a connecting rod assembly (31), and a molten metal guide channel (32). The transmission assembly (30) is movably connected to the passive assembly (22). The connecting rod assembly (31) is movably connected to the transmission assembly (30) and the molten metal guide channel (32) respectively. The molten metal guide channel (32) is slidably connected to the bottom wall of the outer furnace body (10).

2. The electric arc furnace for fused magnesium production according to claim 1, characterized in that: The passive component (22) includes a passive gear disk (220), a passive shaft (221), and a first transmission wheel (222). The passive gear disk (220) is located in the annular cavity (1100). The lower end of the passive shaft (221) penetrates the top wall of the inner furnace body (11) and is rotatably connected to it. Its upper end is keyed to the first transmission wheel (222).

3. An electric arc furnace for fused magnesium production according to claim 2, characterized in that: The rotating assembly (23) includes a center cover (230), a packing cover (231), an electrode (232), an outer gear ring (233), and multiple ball bearings (234). The packing cover (231) is located in the middle of the center cover (230), penetrates the center cover (230), and is fastened to it. The outer gear ring (233) is fixedly connected to the side wall of the center cover (230). The electrode (232) penetrates the center cover (230) and is detachably connected to it. The multiple ball bearings (234) are fixedly connected to the top and bottom walls of the annular cavity (1100). The top and bottom walls of the outer gear ring (233) are provided with annular grooves (2330) that match the ball bearings (234). The outer gear ring (233) is meshed with the driving gear disk (212) and the driven gear disk (220) respectively.

4. An electric arc furnace for fused magnesium production according to claim 3, characterized in that: The transmission assembly (30) includes a second transmission wheel (300), a transmission shaft (301), multiple fixed rings (302), a third transmission wheel (303), and two sets of transmission belts (304). The multiple fixed rings (302) are respectively fixedly connected to the left side wall of the outer furnace body (10) through connecting rods (3020). The transmission shaft (301) passes through the multiple fixed rings (302) and is rotatably connected to them. The second transmission wheel (300) is keyed to the upper end of the transmission shaft (301), and the third transmission wheel (303) is keyed to the lower end of the transmission shaft (301). The second transmission wheel (300) and the first transmission wheel (222) are movably connected through the transmission belts (304).

5. An electric arc furnace for fused magnesium production according to claim 4, characterized in that: The connecting rod assembly (31) includes a connecting rod turntable (310), a connecting shaft (311), a U-shaped connecting rod (312), and two sets of locking blocks (313). The connecting rod turntable (310) is located at the bottom left end of the outer furnace body (10). One end of the connecting shaft (311) is rotatably connected to the bottom wall of the outer furnace body (10), and the other end is keyed to the connecting rod turntable (310). The connecting rod turntable (310) is movably connected to the third transmission wheel (303) through a transmission belt (304). The two sets of locking blocks (313) are respectively fixedly connected to the top wall of the connecting rod turntable (310) and the left side wall of the molten liquid guide channel (32). The two ends of the U-shaped connecting rod (312) are movably connected to the two sets of locking blocks (313).

6. An electric arc furnace for fused magnesium production according to claim 5, characterized in that: The U-shaped connecting rod (312) has convex blocks (3120) at both ends, and the locking block (313) has concave grooves (3130) that match the convex blocks (3120).

7. An electric arc furnace for fused magnesium production according to claim 1, characterized in that: The left end of the melt guide channel (32) is a solid structure, and the right end is sloping.

8. An electric arc furnace for fused magnesium production according to claim 3, characterized in that: The upper outer layer of the electrode (232) is covered with insulating material.

Images