Furnace eye burning-through device of submerged arc furnace

Abstract

The utility model provides a furnace eye burning-through device of a submerged arc furnace. The furnace eye burning-through device comprises a burning-through device and a linear module. The arc burner comprises a first copper plate and a second copper plate which have the same height and are parallel to each other; one end of the first copper plate and one end of the second copper plate are fixed on one side wall of the fixed plate; a carbon rod is clamped between the other end of the first copper plate and the other end of the second copper plate and is electrically connected with the first copper plate and the second copper plate; a first connecting rod is vertically arranged on the upper surface of the first copper plate, and a second connecting rod is vertically arranged on the upper surface of the second copper plate; the linear module is located above the first copper plate and the second copper plate, and the upper ends of the first connecting rod and the second connecting rod are both connected with an output sliding block of the linear module; copper bars are arranged on the side walls, deviating from each other, of the first copper plate and the second copper plate, the first copper plate and the second copper plate are electrically connected with the copper bars, and the copper bars are electrically connected with a power source. According to the invention, the burnthrough efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of production of submerged arc furnaces, and in particular to a furnace eye burning-through device of a submerged arc furnace. Background Art

[0002] Submerged arc furnace is the main equipment for smelting ores, and mainly produces ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloy and other ferroalloys. After the alloy production is completed, the alloy and slag in the furnace need to be discharged through the furnace eye. However, when the alloy and slag are discharged from the furnace, the temperature becomes low, and they are easy to solidify and harden, making it difficult for the alloy and slag to be discharged from the furnace. At this time, a furnace eye will be opened at the bottom of the furnace body, and the alloy and slag will be discharged from the furnace through the furnace eye.

[0003] At present, the burner is generally used to open the furnace eye. The process is as follows: the burner is generally a long rod, with a carbon rod at one end and a handle at the other end. The carbon rod is connected to the power supply. When working, the carbon rod of the burner is energized, and the temperature of the carbon rod increases after being energized; the operator manually pushes the handle of the burner to make the carbon rod of the burner close to the position where the furnace eye needs to be opened, and the furnace eye is burned open by the high-temperature carbon rod. After the furnace eye burning work is completed, the burner is pulled back to its original position.

[0004] During the operation of the burner, workers manually push the burner close to the furnace eye and pull it back in time after completing the burner work. This is not only time-consuming and laborious, increasing the workload of the staff, but also easily leads to burns to the operators. Utility Model Content

[0005] The present application provides a furnace eye burning-through device for an electric arc furnace, which is used to solve the problems existing in the above background technology.

[0006] The present application provides a furnace eye burn-through device for an electric arc furnace, comprising: a burn-through device and a linear module.

[0007] The burn-through device comprises a first copper plate and a second copper plate having the same height and being parallel to each other;

[0008] One end of the first copper plate and one end of the second copper plate are fixed to a side wall of the fixed plate;

[0009] A carbon rod is sandwiched between the other end of the first copper plate and the other end of the second copper plate, and the carbon rod is electrically connected to the first copper plate and the second copper plate;

[0010] A first connecting rod is vertically arranged on the upper surface of the first copper plate, and a second connecting rod is vertically arranged on the upper surface of the second copper plate;

[0011] The linear module is located above the first copper plate and the second copper plate, and the upper ends of the first connecting rod and the second connecting rod are connected to the output slider of the linear module;

[0012] Copper bars are respectively arranged on the side walls of the first copper plate and the second copper plate which are away from each other, and the first copper plate and the second copper plate are electrically connected to the copper bars, and the copper bars are electrically connected to a power source.

[0013] Optionally, a connecting plate is connected to the lower end of the output slider of the linear module, a plurality of the first connecting rods are vertically and evenly arranged on the upper surface of the first copper plate, and the upper end of each of the first connecting rods is connected to the connecting plate, and a plurality of the second connecting rods are vertically and evenly arranged on the upper surface of the second copper plate, and the upper end of each of the second connecting rods is connected to the connecting plate.

[0014] Optionally, the first connecting rod and the second connecting rod are detachably connected to the connecting plate; a first support rod is vertically connected to the lower surface of the first copper plate, and a second support rod is vertically connected to the lower surface of the second copper plate; a slide rail is arranged below the first copper plate and the second copper plate, a first slider matching the slide rail is arranged at the lower end of the first support rod, and a second slider matching the slide rail is arranged at the lower end of the second support rod.

[0015] Optionally, the furnace eye burn-through device of the submerged arc furnace further includes a handle, one end of which is connected to the other side wall of the fixed plate, and the other side wall of the fixed plate is a side wall opposite to the one side wall of the fixed plate.

[0016] Optionally, a control switch is connected in series between the copper busbar and the power supply, the copper busbar and the control switch are connected via a first flexible busbar, and the control switch is connected to the power supply of the burn-through device via a second flexible busbar.

[0017] Optionally, a first mica sheet is arranged between the fixing plate and the handle, a second mica sheet is arranged between the first copper plate and the first connecting rod, and a third mica sheet is arranged between the second copper plate and the second connecting rod.

[0018] Optionally, the submerged arc furnace burn-through device further comprises a carbon rod tray, wherein the carbon rod tray is arranged at a non-edge of one end of the carbon rod away from the first copper plate and the second copper plate.

[0019] The furnace eye burning device provided by the present application includes a burner and a linear module, wherein the burner includes a first copper plate and a second copper plate of the same height and parallel to each other; one end of the first copper plate and one end of the second copper plate are fixed to a side wall of the fixed plate; a carbon rod is arranged on the upper surface of the other end of the first copper plate and the other end of the second copper plate, and the carbon rod is electrically connected to the first copper plate and the second copper plate; a first connecting rod is vertically arranged on the upper surface of the first copper plate, and a second connecting rod is vertically arranged on the upper surface of the second copper plate; the linear module is located above the first copper plate and the second copper plate, the upper end of the first connecting rod is connected to the output slider of the linear module, and the upper end of the second connecting rod is connected to the output slider of the linear module; the first copper plate and the second copper plate are electrically connected to the copper bar, and the copper bar is connected to the power supply. Compared with the prior art, the carbon rod is manually pushed to approach the furnace eye by the burner, and then manually pulled back after use; the present application reduces the workload of the staff, saves time and effort, and improves the burning efficiency by connecting the burner with the linear module and driving the burner to move through the linear module. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic structural diagram of a furnace eye burn-through device for an electric arc furnace provided in one embodiment of the present application;

[0022] Figure 2 A schematic structural diagram of a furnace eye burn-through device for an electric arc furnace provided in another embodiment of the present application;

[0023] Figure 3 A schematic structural diagram of a furnace eye burn-through device for an electric arc furnace provided in another embodiment of the present application;

[0024] Figure 4 A side view schematic diagram of a furnace eye burner device of an electric arc furnace provided in another embodiment of the present application.

[0025] In the figure: a first copper plate 1; a second copper plate 2; a fixing plate 3; a carbon rod 4; a first connecting rod 5; a second connecting rod 6; a linear module 7; a copper bus 8; a power supply 9; a connecting plate 10; a handle 11; a first support rod 12; a second support rod 13; a first slider 14; a second slider 15; a control switch 16; a carbon rod tray 17; a slide rail 18; a first mica sheet 19; and an output slider 71. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0027] Figure 1 Schematic diagram of the overall structure of a furnace eye burn-through device for an electric arc furnace according to an embodiment of the present application. Figure 1 As shown, combined with Figure 4 The device includes: a burn-through device and a linear module 7.

[0028] The burn-through device comprises a first copper plate 1 and a second copper plate 2 which are of the same height and parallel to each other;

[0029] One end of the first copper plate 1 and one end of the second copper plate 2 are fixed to a side wall of the fixing plate 3;

[0030] A carbon rod 4 is sandwiched between the other end of the first copper plate 1 and the other end of the second copper plate 2, and the carbon rod 4 is electrically connected to the first copper plate 1 and the second copper plate 2;

[0031] A first connecting rod 5 is vertically arranged on the upper surface of the first copper plate 1, and a second connecting rod 6 is vertically arranged on the upper surface of the second copper plate 2;

[0032] The linear module 7 is located above the first copper plate 1 and the second copper plate 2, and the upper ends of the first connecting rod 5 and the second connecting rod 6 are connected to the output slider 71 of the linear module 7;

[0033] Copper bars 8 are respectively arranged on the side walls of the first copper plate 1 and the second copper plate 2 which are away from each other, and the first copper plate 1 and the second copper plate 2 are electrically connected to the copper bars 8 , and the copper bars 8 are electrically connected to a power source 9 .

[0034] The first copper plate 1 and the second copper plate 2 have the same length, and there may be a certain interval between the two copper plates. The size of the interval is based on whether the first copper plate 1 and the second copper plate 2 can clamp the carbon rod 4.

[0035] The specifications of the first copper plate 1 and the second copper plate 2 may be: 200 mm in length, 50 mm in height, and 30 mm in width.

[0036] The first copper plate 1 and the second copper plate 2 are used to energize the carbon rod 4 .

[0037] In general, the first connecting rod 5 and the second connecting rod 6 have the same height and are used to hang the first copper plate 1 and the second copper plate 2 on the linear module 7 .

[0038] Furthermore, the first connecting rod 5 and the second connecting rod 6 may be made of high temperature resistant insulating material.

[0039] The output slider 71 of the linear module 7 can slide to a displacement greater than the distance between the end face of the carbon rod 4 and the position of the furnace eye to be opened on the ore furnace, so as to ensure that the end face of the carbon rod 4 can reach the position of the furnace eye to be opened.

[0040] In addition, a stronger linear module 7 is selected, or a linear module 7 that can bear the actual weight of the burn-through device can be customized according to the actual weight of the burn-through device, so as to improve the stability of the entire device when in use.

[0041] Among them, the size of the output slider 71 is determined by the distance between the first connecting rod 5 and the second connecting rod 6. If the distance between the first connecting rod 5 and the second connecting rod 6 is large, the size of the output slider 71 needs to be appropriately increased to ensure that the first connecting rod 5 and the second connecting rod 6 can both be connected to the lower end of the output slider 71.

[0042] The working process of the above-mentioned submerged arc furnace eye burning-through device is as follows:

[0043] Turn on the power supply 9 of the linear module 7, and the linear module 7 starts to work, that is, the output slider 71 starts to move toward the position close to the furnace eye to be opened in the ore-fired furnace;

[0044] When the output slider 71 moves, it drives the first connecting rod 5 and the second connecting rod 6 to move;

[0045] When the first connecting rod 5 and the second connecting rod 6 move, the first copper plate 1 and the second copper plate 2 are driven to move;

[0046] When the first copper plate 1 and the second copper plate 2 start to move, the carbon rod 4 is driven to move synchronously;

[0047] When the carbon rod 4 reaches the position where the furnace eye is to be opened, the power supply 9 of the linear module 7 is disconnected, and the output slider 71 of the linear module 7 stops running, so that the first copper plate 1, the second copper plate 2 and the carbon rod 4 also stop moving;

[0048] Turn on the power supply 9 of the burn-through device, the power supply 9 transmits current to the copper busbar 8, and the copper busbar 8 transmits current to the first copper plate 1 and the second copper plate 2;

[0049] After the first copper plate 1 and the second copper plate 2 are charged, the carbon rod 4 is also charged;

[0050] The carbon rod 4 generates heat through the electric current to burn the furnace eye. After waiting for a period of time, the furnace eye is burned open and the power supply 9 of the burner is turned off;

[0051] The power supply 9 of the linear module 7 is turned on again to control the output slider 71 of the linear module 7 to move away from the submerged arc furnace, thereby driving the first copper plate 1, the second copper plate 2 and the carbon rod 4 to return to their initial positions.

[0052] The time for the carbon rod 4 to burn the furnace eye is determined according to the actual working conditions, generally 5-10 minutes.

[0053] The furnace eye burn-through device of the electric arc furnace provided in the present application includes a burn-through device and a linear module 7, wherein the burn-through device includes a first copper plate 1 and a second copper plate 2 of the same height and parallel to each other; one end of the first copper plate 1 and one end of the second copper plate 2 are fixed to a side wall of a fixed plate 3; a carbon rod 4 is arranged on the upper surface of the other end of the first copper plate 1 and the other end of the second copper plate 2, and the carbon rod 4 is electrically connected to the first copper plate 1 and the second copper plate 2; a first connecting rod 5 is vertically arranged on the upper surface of the first copper plate 1, and a second connecting rod 6 is vertically arranged on the upper surface of the second copper plate 2; the linear module 7 is located above the first copper plate 1 and the second copper plate 2, the upper end of the first connecting rod 5 is connected to the output slider 71 of the linear module 7, and the upper end of the second connecting rod 6 is connected to the output slider 71 of the linear module 7; the first copper plate 1 and the second copper plate 2 are electrically connected to the copper bus 8, and the copper bus 8 is connected to the power supply 9. Compared with the prior art, the carbon rod 4 is manually pushed to approach the furnace eye by the burner, and then manually pulled back after use; the present application connects the burner to the linear module 7, and drives the burner to move by the linear module 7, thereby reducing the workload of the staff, saving time and effort, and improving the burn-through efficiency.

[0054] Alternatively, if Figure 2 As shown, the lower end of the output slider 71 of the linear module 7 is connected to a connecting plate 10, a plurality of the first connecting rods 5 are vertically and evenly arranged on the upper surface of the first copper plate 1, and the upper end of each of the first connecting rods 5 is connected to the connecting plate 10, and a plurality of the second connecting rods 6 are vertically and evenly arranged on the upper surface of the second copper plate 2, and the upper end of each of the second connecting rods 6 is connected to the connecting plate 10.

[0055] The size of the connecting plate 10 is based on the ability to mount multiple first connecting rods 5 and multiple second connecting rods 6. Therefore, after the connecting plate 10 is mounted on the lower surface of the output slider 71, the area of ​​the output slider 71 for mounting the connecting rods can be expanded. Thus, multiple first connecting rods 5 and multiple second connecting rods 6 can be connected to the output slider 71.

[0056] In addition, after the connection plate 10 is provided, the spacing distance between the first copper plate 1 and the second copper plate 2 can be flexibly changed, so that the first copper plate 1 and the second copper plate 2 can clamp carbon rods 4 of different thicknesses. For example, when the diameter of the carbon rod 4 is large, the distance between the first copper plate 1 and the second copper plate 2 is also large, and at this time, the distance between the first connecting rod and the second connecting rod 6 is also large. At this time, only a larger connection plate 10 is required to be provided, and the first connecting rod 5 and the second connecting rod 6 are both installed on the connection plate 10.

[0057] Furthermore, the uniform arrangement of multiple first connecting rods 5 can improve the uniformity of force on the first copper plate 1, and the uniform arrangement of multiple second connecting rods 6 can improve the uniformity of force on the second copper plate 2, thereby improving the stability of the first copper plate 1 and the second copper plate 2, while also improving the stability of the movement process of the carbon rod 4, reducing damage to the first connecting rod 5, the second connecting rod 6, the first copper plate 1, the second copper plate 2, and the carbon rod 4 during the movement process, and extending the service life of the device.

[0058] Alternatively, if Figure 3 As shown, the first connecting rod 5 and the second connecting rod 6 are detachably connected to the connecting plate 10; the lower surface of the first copper plate 1 is vertically connected to the first support rod 12, and the lower surface of the second copper plate 2 is vertically connected to the second support rod 13; a slide rail 18 is arranged below the first copper plate 1 and the second copper plate 2, and a first slider 14 matching the slide rail 18 is arranged at the lower end of the first support rod 12, and a second slider 15 matching the slide rail 18 is arranged at the lower end of the second support rod 13.

[0059] Among them, the detachable connection can be a snap connection, a threaded connection, etc.

[0060] The first support rod 12 and the second support rod 13 are made of high temperature resistant insulating material.

[0061] Furthermore, the heights of the first support rod 12 and the second support rod 13 are determined according to actual conditions, with the position at which the carbon rod 4 can contact the furnace eye to be fired being the standard.

[0062] Among them, when the output slider 71 of the linear module 7 moves, the first copper plate 1 and the second copper plate 2 move with the output slider 71, and the first support rod 12 and the second support rod 13 move simultaneously with the first copper plate 1 and the second copper plate 2, thereby driving the first slider 14 and the second slider 15 to move on the slide rail 18.

[0063] Furthermore, the first slider 14 and the second slider 15 support the first copper plate 1 and the second copper plate 2 while moving on the slide rail 18, thereby reducing the tension of the first copper plate 1, the second copper plate 2 and the carbon rod 4 borne by the output slider 71 on the linear module 7, reducing damage to the linear module 7, and increasing the service life of the linear module 7.

[0064] Among them, the support rod and the slide rail 18 can effectively improve the stability and bearing capacity of the overall structure, ensure the stability and accuracy of the movement of the first copper plate 1, the second copper plate 2 and the carbon rod 4, and prevent the support rod from being damaged by excessive pressure, causing the burner to fall and injure the staff.

[0065] Furthermore, when the linear module 7 fails, the first connecting rod 5 and the second connecting rod 6 can be removed from the linear module 7, and the burner can be moved by the first slide rail 18, the second slide rail 18, the first support rod 12 and the second support rod 13 to ensure that the furnace eye can be burned through normally.

[0066] Optionally, the furnace eye burning-through device of the submerged arc furnace further includes a handle 11 , one end of which is connected to the other side wall of the fixing plate 3 , and the other side wall of the fixing plate 3 is a side wall opposite to the one side wall of the fixing plate 3 .

[0067] When the linear module 7 fails and temporarily cannot operate, the staff can remove the first connecting rod 5 and the second connecting rod 6 from the output slider 71 to manually push the burn-through device to move. When the burn-through device needs to be pushed manually, the burn-through device can be pushed by pushing the handle 11. Generally, the handle 11 has a certain length to increase the distance between the operator and the submerged arc furnace, so as to keep the operator away from the high-temperature submerged arc furnace and improve the comfort of the operator.

[0068] The handle 11 enables the staff to promptly operate the burn-through device to move after a problem occurs in the linear module 7, thereby increasing the use scenarios of the burn-through device, not delaying work time, and improving the operational convenience of the staff.

[0069] Optionally, a control switch 16 is connected in series between the copper busbar 8 and the power supply 9, the copper busbar 8 and the control switch 16 are connected via a first flexible busbar, and the control switch 16 and the power supply 9 of the burn-through device are connected via a second flexible busbar.

[0070] Among them, the control switch 16 is used to control the on-off between the burner and its power supply 9. When the burner needs to be close to the furnace eye, the control switch 16 is turned on. When the burner is used up, the control switch 16 is turned off to check whether there is current passing through the first soft busbar, the second soft busbar, the first copper plate 1, the second copper plate 2 and the carbon rod 4.

[0071] The power source 9 may be a compensator on the low voltage side of the transformer.

[0072] The flexible busbar transmits the current from the power source 9 to the first copper plate 1 and the second copper plate 2 , and transmits the current to the carbon rod 4 through the first copper plate 1 and the second copper plate 2 .

[0073] Furthermore, the control switch 16 can conveniently control the on and off state of the circuit, thereby improving the safety and operability of the circuit. The flexible busbar can be bent and folded into various shapes according to actual needs to adapt to different layouts and space requirements. The flexible busbar has a low cost, and can reduce the cost of use when the outdoor space is large.

[0074] Optionally, the furnace eye burn-through device of the submerged arc furnace further includes a carbon rod tray 17 , and the carbon rod tray 17 is arranged at a non-edge of one end of the carbon rod 4 away from the first copper plate 1 and the second copper plate 2 .

[0075] Since one end of the carbon rod 4 is clamped between the first copper plate 1 and the second copper plate 2, and the other end is suspended in the air, the two ends of the carbon rod 4 are subjected to uneven force, which is easy to shake and even fall. The carbon rod tray 17 can better support and fix the carbon rod 4, which can prevent the carbon rod 4 from falling due to uneven force, reduce potential safety hazards, and also improve the stability of the burn-through device.

[0076] Optionally, a first mica sheet 19 is arranged between the fixing plate 3 and the handle 11 , a second mica sheet is arranged between the first copper plate 1 and the first connecting rod 5 , and a third mica sheet is arranged between the second copper plate 2 and the second connecting rod 6 .

[0077] Among them, each mica sheet can be connected at a corresponding position by means of snaps, threads, etc.

[0078] Furthermore, the first mica sheet 19 can insulate and heat-insulate the handle 11, so that the temperature of the handle 11 will not be too high and it is insulated, which not only saves heat and electrical energy, but also improves the comfort and safety of the operator when holding the handle 11.

[0079] Similarly, the second mica sheet can provide insulation and heat insulation for the first connecting rod 5, thereby saving heat energy and electrical energy.

[0080] Similarly, the third mica sheet can provide insulation and heat insulation for the second connecting rod 6, thereby saving heat energy and electrical energy.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A furnace eye burning device for a submerged arc furnace, characterized in that: Includes burn-through and linear modules; The burn-through device comprises a first copper plate and a second copper plate having the same height and being parallel to each other; One end of the first copper plate and one end of the second copper plate are fixed to a side wall of the fixed plate; A carbon rod is sandwiched between the other end of the first copper plate and the other end of the second copper plate, and the carbon rod is electrically connected to the first copper plate and the second copper plate; A first connecting rod is vertically arranged on the upper surface of the first copper plate, and a second connecting rod is vertically arranged on the upper surface of the second copper plate; The linear module is located above the first copper plate and the second copper plate, and the upper ends of the first connecting rod and the second connecting rod are connected to the output slider of the linear module; Copper bars are respectively arranged on the side walls of the first copper plate and the second copper plate which are away from each other, and the first copper plate and the second copper plate are electrically connected to the copper bars, and the copper bars are electrically connected to a power source.

2. The furnace eye burning device of a submerged arc furnace according to claim 1, characterized in that: The lower end of the output slider of the linear module is connected to a connecting plate, a plurality of the first connecting rods are vertically and evenly arranged on the upper surface of the first copper plate, and the upper end of each of the first connecting rods is connected to the connecting plate, and a plurality of the second connecting rods are vertically and evenly arranged on the upper surface of the second copper plate, and the upper end of each of the second connecting rods is connected to the connecting plate.

3. The device for burning through a furnace eye of a submerged arc furnace according to claim 2, characterized in that: The first connecting rod and the second connecting rod are detachably connected to the connecting plate; a first support rod is vertically connected to the lower surface of the first copper plate, and a second support rod is vertically connected to the lower surface of the second copper plate; a slide rail is arranged below the first copper plate and the second copper plate, a first slider matching the slide rail is arranged at the lower end of the first support rod, and a second slider matching the slide rail is arranged at the lower end of the second support rod.

4. The furnace eye burning-through device of a submerged arc furnace according to claim 3, characterized in that: The furnace eye burning-through device of the submerged arc furnace further comprises a handle, one end of which is connected to the other side wall of the fixing plate, and the other side wall of the fixing plate is a side wall opposite to the one side wall of the fixing plate.

5. The furnace eye burning device of a submerged arc furnace according to claim 1, characterized in that: A control switch is also connected in series between the copper busbar and the power supply. The copper busbar and the control switch are connected via a first flexible busbar, and the control switch and the power supply of the burn-through device are connected via a second flexible busbar.

6. The furnace eye burning device of a submerged arc furnace according to claim 4, characterized in that: A first mica sheet is arranged between the fixing plate and the handle, a second mica sheet is arranged between the first copper plate and the first connecting rod, and a third mica sheet is arranged between the second copper plate and the second connecting rod.

7. The furnace eye burning device of a submerged arc furnace according to any one of claims 1 to 6, characterized in that: The furnace eye burning-through device of the submerged arc furnace further comprises a carbon rod tray, and the carbon rod tray is arranged at a non-edge of one end of the carbon rod away from the first copper plate and the second copper plate.

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