Slag removal structure for discharge port of electric arc furnace

Abstract

The utility model discloses an electric arc furnace discharge port slag removal structure which comprises an electric arc furnace and a discharge port, the discharge port is fixedly communicated with the front side of the electric arc furnace, the left side and the right side of the discharge port are respectively provided with a slide way, and the bottom of the discharge port is provided with a moving assembly. The electric arc furnace, the discharge port, the slide way, the moving assembly, the U-shaped frame, the driving box, a cavity, a motor, a roller, teeth, a groove, a cleaning assembly, an electric cylinder, a connecting rod, a bracket, a scraper, a limiting groove, a slide block and a tripod are matched for use, so that the problems that slag is continuously generated and accumulated at the discharge port in the smelting process, and the slag cannot be cleaned in time, and the slag cannot be cleaned in time are solved. The problem that the service life of equipment is shortened due to the fact that a discharge port is blocked when the electric arc furnace is smelted, continuity and efficiency of the smelting process are affected, and a lining and a furnace body of the electric arc furnace are eroded and damaged is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric arc furnaces, and in particular relates to a slag cleaning structure for an electric arc furnace discharge port. Background Art

[0002] An electric arc furnace is an electric furnace that uses the high temperature generated by the electrode arc to melt ores and metals. In metal smelting, electric arc furnaces are widely used, especially in the process of recycling scrap metals and producing alloys. In addition, it can also be used to treat various wastes, such as discarded electronic equipment, scrap vehicle parts, etc., and for slag treatment to turn them into recyclable materials. There are many types of electric arc furnaces, which can be divided into three-phase electric arc furnaces, consumable electric arc furnaces, single-phase electric arc furnaces and resistance electric arc furnaces according to the arc form. Each type of electric arc furnace has its specific application occasions and process characteristics. The electric arc furnace is an efficient and flexible smelting equipment, which plays an important role in the fields of metal smelting and waste treatment.

[0003] The problem with the prior art is that during the smelting process, slag will continuously be generated and accumulated at the discharge port. If it is not cleaned in time, it will block the discharge port, affecting the continuity and efficiency of the smelting process, and causing erosion and damage to the lining and furnace body of the electric arc furnace, reducing the service life of the equipment. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a slag cleaning structure for the discharge port of an electric arc furnace, which has the advantage of cleaning the residue at the discharge port of the electric arc furnace, and solves the problem that during the smelting process, slag will be continuously generated and accumulated at the discharge port, which will block the discharge port if not cleaned in time, affecting the continuity and efficiency of the smelting process, and causing erosion and damage to the lining and furnace body of the electric arc furnace, thereby reducing the service life of the equipment.

[0005] The utility model is implemented as follows: a slag cleaning structure for an electric arc furnace discharge port comprises an electric arc furnace and a discharge port, wherein the discharge port is fixedly connected to the front side of the electric arc furnace, slideways are provided on the left and right sides of the discharge port, a moving component is provided at the bottom of the discharge port, and protrusions are provided at the left and right ends of the moving component extending to the interior of the slideway, and teeth are fixedly connected to the bottom of the discharge port, and the teeth are used in conjunction with the moving component.

[0006] As a preferred embodiment of the utility model, the moving component includes a U-shaped frame, a drive box, a cavity, a motor and a roller. The U-shaped frame is arranged at the bottom of the discharge port, and the U-shaped frame has a protrusion extending to the inside of the slideway. The drive box is fixedly connected to the left side of the U-shaped frame, the cavity is opened in the drive box, the motor is fixedly connected to the inside of the cavity, and the output end of the motor is facing right, the roller is rotatably connected to the bottom of the discharge port and is meshed with teeth, and the output end of the motor is fixedly connected to the roller. By setting the moving component, the cleaning component can be driven to move, so that the residue on the discharge port can be cleaned by the cleaning component.

[0007] As a preferred embodiment of the utility model, grooves are provided on both sides of the inner wall of the U-shaped frame, and a cleaning component is arranged inside the groove. By providing the groove and the cleaning component, it is possible to avoid contact between the electric arc furnace and the cleaning component when the material in the furnace is dumped through the discharge port, and then the cleaning work can be performed through the cleaning component after the material is dumped and cooled.

[0008] As a preferred embodiment of the utility model, the cleaning assembly includes two electric cylinders, two connecting rods, two brackets and two scrapers, the two electric cylinders are respectively fixedly connected to the inner walls of the two grooves, and the output ends are facing upward, the two connecting rods are respectively fixedly connected to the output ends of the two electric cylinders, the two brackets are respectively fixedly connected to the sides of the two connecting rods close to each other, the two scrapers are respectively fixedly connected to the front and rear sides of the brackets, and the scrapers are located directly above the discharge port. By setting the cleaning assembly, the discharge port can be cleaned after the material is dumped to avoid residue remaining on the discharge port.

[0009] As a preferred embodiment of the utility model, the left and right sides of the scraper are in contact with the left and right sides of the inner wall of the discharge port, and the height of the scraper is higher than the height of the discharge port. By setting a scraper with the same inner diameter as the discharge port, the discharge port can be fully cleaned to avoid residual residue.

[0010] As a preferred embodiment of the utility model, limiting grooves are provided at the top and bottom of the inner wall of the slide, and the top and bottom of the U-shaped frame extending to one side of the slide are fixedly connected with sliders corresponding to the limiting grooves. By providing limiting grooves and setting sliders, the stability of the movement of the U-shaped frame can be improved and shaking of the U-shaped frame can be avoided when it moves.

[0011] As a preferred embodiment of the present invention, the bottom of the drive box is fixedly connected to a tripod, and the other side of the tripod is fixedly connected to the surface of the U-shaped frame. By providing the tripod, the stability of the drive box can be improved to prevent the drive box from being suspended in the air for a long time and then tilting.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model solves the problem that slag is continuously generated and accumulated at the discharge port during the smelting process, and if it is not cleaned in time, the discharge port will be blocked, affecting the continuity and efficiency of the smelting process, and the lining and furnace body of the electric arc furnace will be corroded and damaged, thereby reducing the service life of the equipment.

[0014] 2. The utility model can improve the stability of the drive box by setting a tripod, and prevent the drive box from being suspended in the air for a long time and then tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of an electric arc furnace provided by an embodiment of the utility model from a first viewing angle;

[0016] Figure 2 The utility model embodiment provides Figure 1 A partial enlarged view of the middle A;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the electric arc furnace provided by the embodiment of the utility model from a second viewing angle;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of a cleaning component provided by an embodiment of the utility model.

[0019] In the figure: 1, electric arc furnace; 2, discharge port; 3, slide; 4, moving assembly; 401, U-shaped frame; 402, drive box; 403, cavity; 404, motor; 405, roller; 5, teeth; 6, groove; 7, cleaning assembly; 701, electric cylinder; 702, connecting rod; 703, bracket; 704, scraper; 8, limiting groove; 9, slider; 10, tripod. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0021] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 4As shown, an arc furnace discharge port slag cleaning structure provided by an embodiment of the utility model includes an arc furnace 1 and a discharge port 2, the discharge port 2 is fixedly connected to the front side of the arc furnace 1, slideways 3 are provided on the left and right sides of the discharge port 2, a moving component 4 is provided at the bottom of the discharge port 2, and protrusions are provided at the left and right ends of the moving component 4 extending to the interior of the slideway 3, and teeth 5 are fixedly connected to the bottom of the discharge port 2, and the teeth 5 are used in conjunction with the moving component 4.

[0023] refer to Figure 1 The moving component 4 includes a U-shaped frame 401, a driving box 402, a cavity 403, a motor 404 and a roller 405. The U-shaped frame 401 is arranged at the bottom of the discharge port 2, and the U-shaped frame 401 has a protrusion extending to the inside of the slideway 3. The driving box 402 is fixedly connected to the left side of the U-shaped frame 401, the cavity 403 is opened inside the driving box 402, the motor 404 is fixedly connected to the inside of the cavity 403, and the output end of the motor 404 is facing right, the roller 405 is rotatably connected to the bottom of the discharge port 2, and is meshed with the teeth 5, and the output end of the motor 404 is fixedly connected to the roller 405.

[0024] The above solution is adopted: by setting the moving component 4, it is possible to drive the cleaning component 7 to move, so that the residue on the discharge port 2 can be cleaned by the cleaning component 7.

[0025] refer to Figure 1 and Figure 2 A groove 6 is provided on both sides of the inner wall of the U-shaped frame 401 , and a cleaning component 7 is provided inside the groove 6 .

[0026] By adopting the above scheme: by providing the groove 6 and setting the cleaning component 7, the arc furnace 1 can be prevented from contacting the cleaning component 7 when the material in the furnace is dumped through the discharge port 2, and then the cleaning work can be performed through the cleaning component 7 after the material is dumped and cooled.

[0027] refer to Figure 2 and Figure 4 The cleaning assembly 7 includes two electric cylinders 701, two connecting rods 702, two brackets 703 and two scrapers 704. The two electric cylinders 701 are respectively fixedly connected to the inner walls of the two grooves 6, and the output ends are facing upward. The two connecting rods 702 are respectively fixedly connected to the output ends of the two electric cylinders 701. The two brackets 703 are respectively fixedly connected to the sides of the two connecting rods 702 close to each other. The two scrapers 704 are respectively fixedly connected to the front and rear sides of the brackets 703, and the scrapers 704 are located directly above the discharge port 2.

[0028] By adopting the above solution, by providing the cleaning component 7 , the discharge port 2 can be cleaned after the material is dumped, so as to avoid residues being left on the discharge port 2 .

[0029] refer to Figure 1 The left and right sides of the scraper 704 are in contact with the left and right sides of the inner wall of the discharge port 2 , and the height of the scraper 704 is higher than the height of the discharge port 2 .

[0030] By adopting the above solution, by providing a scraper 704 having the same inner diameter as the discharge port 2, the discharge port 2 can be fully cleaned to avoid residue residue.

[0031] refer to Figure 1 and Figure 2 The top and bottom of the inner wall of the slideway 3 are both provided with limiting grooves 8, and the top and bottom of the U-shaped frame 401 extending to one side of the slideway 3 are fixedly connected with sliders 9 corresponding to the limiting grooves 8.

[0032] By adopting the above solution, by providing the limiting groove 8 and setting the slider 9, the stability of the movement of the U-shaped frame 401 can be improved, and shaking of the U-shaped frame 401 when moving can be avoided.

[0033] refer to Figure 3 The bottom of the driving box 402 is fixedly connected to a tripod 10 , and the other side of the tripod 10 is fixedly connected to the surface of the U-shaped frame 401 .

[0034] By adopting the above solution, the tripod 10 is provided to improve the stability of the drive box 402, thereby preventing the drive box 402 from being suspended in the air for a long time and then tilting.

[0035] The working principle of this utility model:

[0036] After the electric arc furnace 1 has dumped the material inside through the discharge port 2 and is in a power-off and gas-off state, the motor 404 can be started, and the motor 404 drives the roller 405 to rotate, and then the roller 405 moves to the side close to the electric arc furnace 1 through the meshing teeth 5, and then drives the U-shaped frame 401 to move. When it moves to the specified position, the electric cylinder 701 is started, and then the scraper 704 is driven to descend through the connecting rod 702 and the bracket 703. When the scraper 704 descends to the surface of the discharge port 2, the motor 404 reverses, and then drives the U-shaped frame 401 to move in the opposite direction through the rotation of the roller shaft. At this time, the two scrapers 704 move on the surface of the discharge port 2 and then scrape off the residue on its surface. When it moves to the edge of the discharge port 2, the motor 404 flips again, and then reciprocates until the residue is cleaned up. Then the electric cylinder 701 can be started to move the scraper 704 away from the discharge port 2 to avoid contact between the poured material and the scraper 704.

[0037] To sum up: the slag cleaning structure at the discharge port of the electric arc furnace solves the problem that slag is continuously generated and accumulated at the discharge port during the smelting process, and if it is not cleaned in time, the discharge port will be blocked, affecting the continuity and efficiency of the smelting process, and causing erosion and damage to the lining and furnace body of the electric arc furnace, thereby reducing the service life of the equipment.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slag cleaning structure for an electric arc furnace discharge port, comprising an electric arc furnace (1) and a discharge port (2), characterized in that: The discharge port (2) is fixedly connected to the front side of the electric arc furnace (1), and slideways (3) are provided on both the left and right sides of the discharge port (2). A moving component (4) is provided at the bottom of the discharge port (2), and both the left and right ends of the moving component (4) have protrusions extending to the inside of the slideway (3). The bottom of the discharge port (2) is fixedly connected with teeth (5), and the teeth (5) are used in conjunction with the moving component (4).

2. The slag cleaning structure for an electric arc furnace discharge port according to claim 1, characterized in that: The moving assembly (4) comprises a U-shaped frame (401), a drive box (402), a cavity (403), a motor (404) and a roller (405); the U-shaped frame (401) is arranged at the bottom of the discharge port (2), and the U-shaped frame (401) has a protrusion extending to the inside of the slideway (3); the drive box (402) is fixedly connected to the left side of the U-shaped frame (401); the cavity (403) is opened inside the drive box (402); the motor (404) is fixedly connected to the inside of the cavity (403), and the output end of the motor (404) faces right; the roller (405) is rotatably connected to the bottom of the discharge port (2) and meshed with the teeth (5); the output end of the motor (404) is fixedly connected to the roller (405).

3. The slag cleaning structure for an electric arc furnace discharge port according to claim 2, characterized in that: The left and right sides of the inner wall of the U-shaped frame (401) are provided with grooves (6), and a cleaning component (7) is arranged inside the groove (6).

4. The slag cleaning structure for an electric arc furnace discharge port according to claim 3, characterized in that: The cleaning assembly (7) comprises two electric cylinders (701), two connecting rods (702), two brackets (703) and two scrapers (704); the two electric cylinders (701) are respectively fixedly connected to the inner walls of the two grooves (6), with the output ends facing upward; the two connecting rods (702) are respectively fixedly connected to the output ends of the two electric cylinders (701); the two brackets (703) are respectively fixedly connected to the sides of the two connecting rods (702) close to each other; the two scrapers (704) are respectively fixedly connected to the front and rear sides of the brackets (703), and the scrapers (704) are located directly above the discharge port (2).

5. The slag cleaning structure for an electric arc furnace discharge port according to claim 4, characterized in that: The left and right sides of the scraper (704) are in contact with the left and right sides of the inner wall of the discharge port (2), and the height of the scraper (704) is higher than the height of the discharge port (2).

6. The slag cleaning structure for an electric arc furnace discharge port according to claim 2, characterized in that: The top and bottom of the inner wall of the slideway (3) are both provided with limiting grooves (8), and the top and bottom of the U-shaped frame (401) extending to one side of the slideway (3) are both fixedly connected with sliding blocks (9) corresponding to the limiting grooves (8).

7. The slag cleaning structure for an electric arc furnace discharge port according to claim 2, characterized in that: The bottom of the driving box (402) is fixedly connected to a tripod (10), and the other side of the tripod (10) is fixedly connected to the surface of the U-shaped frame (401).

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