Electric arc furnace for steelmaking
By designing the material separation mechanism and the filter screening mechanism in the arc furnace, the problem of poor smelting effect when the rotary blade rotates and the metal size is too large is solved, and the uniform distribution and size screening of materials are achieved, which reduces work costs and improves work quality.
Patent Information
- Application Number
- CN202420492307.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-03-14
AI Technical Summary
When the rotating blade rotates, the material will be thrown out of the main body of the arc furnace, reducing the amount of materials in the main body of the arc furnace, increasing the working cost. When the size of the metal to be melted is too large, the smelting effect of the arc furnace will be worse, resulting in the material not being completely utilized and reducing the working quality.
An arc furnace for steelmaking is designed, including a material separation mechanism and a filter screening mechanism. The first motor drives the bevel gears and connecting rods to achieve the dispersion and uniform distribution of steelmaking raw materials; at the same time, the second motor drives the rotating rod and cam to avoid clogging of the filter net through the knocking block and the lifting rod, ensuring that the qualified raw materials enter the furnace body.
It effectively avoids waste of materials, reduces the working cost of the arc furnace, and improves the reaction sufficiency and smelting effect of the steelmaking raw materials, and improves the working quality of the arc furnace.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steelmaking equipment, in particular to an electric arc furnace for steelmaking. Background Art
[0002] Electric arc furnace is an electric furnace that uses the high temperature generated by the electrode arc to melt ores and metals. When the gas discharge forms an arc, the energy is very concentrated, and the temperature in the arc zone is above 3000℃. For melting metal, the electric arc furnace has greater process flexibility than other steelmaking furnaces, can effectively remove impurities such as sulfur and phosphorus, the furnace temperature is easy to control, the equipment occupies a small area, and is suitable for melting high-quality alloy steel. Electric arc furnaces are also used in steelmaking.
[0003] For example, in an electric arc furnace for steelmaking with the authorization announcement number "CN218404311U", materials can be scattered into the interior of the furnace body without local accumulation, which can improve the uniformity of heating of metal materials, and the materials can be moved by rotating the blades so that the materials can be evenly stacked in the furnace body, thereby ensuring that the space in the furnace body can be fully utilized. However, when the blades of the electric arc furnace for steelmaking rotate, the materials will be thrown out of the furnace body, reducing the amount of materials in the furnace body, which increases the working cost of the electric arc furnace. At the same time, when the size of the metal to be smelted is too large, the smelting effect of the electric arc furnace will deteriorate, which causes some materials to be discharged completely after entering the furnace body, which reduces the working quality of the electric arc furnace. Utility Model Content
[0004] The utility model aims to solve the problem that when the rotor blades rotate, the materials are thrown out of the arc furnace body, so that the amount of materials in the arc furnace body is reduced, which increases the working cost of the arc furnace and when the size of the metal to be smelted is too large, the smelting effect of the arc furnace will become worse, which causes some materials to be discharged completely after entering the arc furnace body, thus reducing the working quality of the arc furnace. An electric arc furnace for steelmaking is proposed.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] An electric arc furnace for steelmaking is designed, comprising a base, the upper end of the base is fixedly connected to the electric arc furnace body, a material dividing mechanism is arranged inside the electric arc furnace body, a filtering and screening mechanism is arranged inside the electric arc furnace body, the inner wall of the electric arc furnace body is movably engaged with a filter screen, the outer wall of the filter screen is fitted with the outer walls of two knocking blocks, the inner wall of the base is fixedly connected to a third motor through a bracket, the output shaft of the third motor is fixedly connected to a stirring rod, the outer wall of the stirring rod is rotatably connected to the electric arc furnace body through a bearing, and a rubber sealing ring is installed at the contact between the stirring rod and the electric arc furnace body.
[0007] Preferably, the material distribution mechanism includes a first motor box, the outer wall of the first motor box is fixedly connected to the outer wall of the arc furnace body, the outer wall of the first motor box is processed with heat dissipation holes, the inner wall of the first motor box is fixedly connected to the first motor through a bracket, the output shaft of the first motor is fixedly connected to the first bevel gear, the outer wall of the first bevel gear is meshingly connected to the second bevel gear, the outer wall of the second bevel gear is rotatably connected to the first motor box through a pin shaft, the outer wall of the second bevel gear is meshingly connected to the third bevel gear, the outer wall of the first bevel gear is fixedly connected to the first connecting rod, the outer wall of the first connecting rod is socketed with the third bevel gear through a through hole, the outer wall of the third bevel gear is fixedly connected to the second connecting rod, and the second connecting rod is socketed with the first connecting rod.
[0008] Preferably, the outer wall of the first connecting rod is fixedly connected to the first diverter plate, and the outer wall of the second connecting rod is fixedly connected to the second diverter plate.
[0009] Preferably, the filtering and screening mechanism includes a second motor box, an outer wall of the second motor box is fixedly connected to the arc furnace body, an inner wall of the second motor box is fixedly connected to the second motor through a bracket, an output shaft of the second motor is fixedly connected to a rotating rod, an outer wall of the rotating rod is fixedly connected to two cams, the outer walls of the two cams are slidingly connected to a slider through surface-machined grooves, the outer wall of the slider is fixedly connected to a lifting rod, the outer wall of the rotating rod is rotatably connected to two shells through bearings, and the outer walls of the two shells are fixedly connected to the inner wall of the arc furnace body.
[0010] Preferably, the outer walls of the two lifting rods are fixedly connected to the knocking block, and the outer wall of the rotating rod is rotatably connected to the inner wall of the arc furnace body through a bearing.
[0011] Preferably, outer walls of the first diverter plate and the second diverter plate are adjacent to the inner wall of the arc furnace body, and the first diverter plate and the second diverter plate are movably connected by a pin shaft.
[0012] The utility model provides an electric arc furnace for steelmaking, which has the beneficial effects that: through the cooperation of the electric arc furnace main body and the material distribution mechanism, the first motor drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the third bevel gear to rotate, and at the same time, the first bevel gear drives the first connecting rod to rotate, the third bevel gear drives the second connecting rod to rotate, the first connecting rod drives the first diverter plate to rotate, the second connecting rod drives the second diverter plate to rotate, the first diverter plate and the second diverter plate are rotated to a suitable angle, and the above method can avoid the waste of raw materials when adding raw materials, thereby reducing the working cost of the electric arc furnace.
[0013] Through the cooperation of the electric arc furnace body and the filtering and screening mechanism, the second motor drives the rotating rod to rotate, the rotating rod drives the cam to rotate, the cam drives the slider to move, the slider drives the lifting rod to move, the lifting rod drives the knocking block to move, the knocking block knocks the filter to prevent the filter from being blocked, and the steelmaking raw materials of qualified size fall into the electric arc furnace body, and the steelmaking raw materials of oversized size remain above the filter. The above method can avoid the situation of insufficient reaction of the steelmaking raw materials, which improves the working quality of the electric arc furnace. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 for Figure 1 A schematic front cross-sectional view of
[0016] Figure 3 for Figure 2 A partial enlarged schematic diagram of the middle A part;
[0017] Figure 4 for Figure 1 A top cross-sectional schematic diagram of
[0018] Figure 5 for Figure 3 A side cross-sectional schematic diagram of
[0019] Figure 6 for Figure 5 A partial three-dimensional schematic diagram of the middle cam.
[0020] In the figure: 1. base, 2. arc furnace body, 3. material distribution mechanism, 301. first motor box, 302. first motor, 303. first bevel gear, 304. second bevel gear, 305. third bevel gear, 306. first connecting rod, 307. second connecting rod, 4. filtering and screening mechanism, 401. second motor box, 402. second motor, 403. rotating rod, 404. cam, 405. slider, 406. lifting rod, 407. shell, 5. knocking block, 6. filter screen, 7. first diverter plate, 8. second diverter plate, 9. third motor, 10. stirring rod. DETAILED DESCRIPTION
[0021] The utility model is further described below in conjunction with the accompanying drawings:
[0022] Refer to the attached Figure 1-6: In the present embodiment, an electric arc furnace for steelmaking comprises a base 1, the upper end of the base 1 is fixedly connected to the electric arc furnace body 2, a material dividing mechanism 3 is arranged inside the electric arc furnace body 2, a filtering and screening mechanism 4 is arranged inside the electric arc furnace body 2, the inner wall of the electric arc furnace body 2 is movably connected with the filter screen 6, the outer wall of the filter screen 6 is fitted with the outer walls of two knocking blocks 5, the knocking blocks 5 are close to the filter screen 6, the inner wall of the base 1 is fixedly connected to the third motor 9 through a bracket, the base 1 fixes the position of the third motor 9, the size of the third motor 9 is selected according to actual needs, and the selection can meet the work needs, the output shaft of the third motor 9 is fixedly connected to the stirring rod 10, the third motor 9 drives the stirring rod 10 to rotate, the outer wall of the stirring rod 10 is rotatably connected to the electric arc furnace body 2 through a bearing, the stirring rod 10 rotates on the electric arc furnace body 2, and a rubber sealing ring is installed at the contact between the stirring rod 10 and the electric arc furnace body 2, and the rubber sealing ring prevents leakage of materials in the electric arc furnace body 2;
[0023] The outer wall of the first connecting rod 306 is fixedly connected to the first diverter plate 7, and the first connecting rod 306 drives the first diverter plate 7 to rotate. The outer wall of the second connecting rod 307 is fixedly connected to the second diverter plate 8, and the second connecting rod 307 drives the second diverter plate 8 to rotate. The outer walls of the two lifting rods 406 are fixedly connected to the knocking block 5, and the lifting rod 406 drives the knocking block 5 to move. The outer wall of the rotating rod 403 is rotatably connected to the inner wall of the arc furnace body 2 through a bearing, and the rotating rod 403 rotates in the arc furnace body 2. The outer walls of the first diverter plate 7 and the second diverter plate 8 are adjacent to the inner wall of the arc furnace body 2, and the first diverter plate 7 and the second diverter plate 8 slide in the arc furnace body 2, and the first diverter plate 7 and the second diverter plate 8 are movably connected by a pin shaft.
[0024] Refer to the attached Figure 1 , Figure 2 and Figure 4: In the present embodiment, an electric arc furnace for steelmaking, a material distribution mechanism 3 includes a first motor box 301, an outer wall of the first motor box 301 is fixedly connected to the outer wall of the electric arc furnace body 2, the electric arc furnace body 2 fixes the position of the first motor box 301, the outer wall of the first motor box 301 is processed with heat dissipation holes, the inner wall of the first motor box 301 is fixedly connected to the first motor 302 through a bracket, the first motor box 301 fixes the position of the first motor 302, the size of the first motor 302 is selected according to actual needs, and the size that meets the work needs can be selected, the output shaft of the first motor 302 is fixedly connected to the first bevel gear 303, the first motor 302 drives the first bevel gear 303 to rotate, the outer wall of the first bevel gear 303 is meshed and connected with the second bevel gear 304, the first bevel gear 303 drives the second bevel gear 304 to rotate, The outer wall of the second bevel gear 304 is rotatably connected to the first motor box 301 through a pin shaft, the second bevel gear 304 rotates in the first motor box 301, the outer wall of the second bevel gear 304 is meshed and connected with the third bevel gear 305, the second bevel gear 304 drives the third bevel gear 305 to rotate, the outer wall of the first bevel gear 303 is fixedly connected to the first connecting rod 306, the first bevel gear 303 drives the first connecting rod 306 to rotate, the outer wall of the first connecting rod 306 is sleeved with the third bevel gear 305 through a through hole, the first connecting rod 306 penetrates the third bevel gear 305 to rotate, the outer wall of the third bevel gear 305 is fixedly connected to the second connecting rod 307, the third bevel gear 305 drives the second connecting rod 307 to rotate, the second connecting rod 307 is sleeved with the first connecting rod 306, and the first connecting rod 306 moves in the second connecting rod 307.
[0025] Refer to the attached Figure 2 , Figure 3 , Figure 5 and Figure 6 : In this embodiment, an electric arc furnace for steelmaking, the filtering and screening mechanism 4 includes a second motor box 401, the outer wall of the second motor box 401 is fixedly connected to the electric arc furnace body 2, the inner wall of the second motor box 401 is fixedly connected to the second motor 402 through a bracket, the second motor box 401 fixes the position of the second motor 402, the size of the second motor 402 is selected according to actual needs, and the size can be selected to meet the work needs, the output shaft of the second motor 402 is fixedly connected to the rotating rod 403, the second motor 402 drives the rotating rod 403 to rotate, and the outer wall of the rotating rod 403 is connected to the two The cam 404 is fixedly connected, and the rotating rod 403 drives the cam 404 to rotate. The outer walls of the two cams 404 are slidingly connected to the slider 405 through the grooves processed on the surface. The cam 404 drives the slider 405 to move. The outer wall of the slider 405 is fixedly connected to the lifting rod 406. The slider 405 drives the lifting rod 406 to move. The outer wall of the rotating rod 403 is rotationally connected to the two shells 407 through bearings. The rotating rod 403 rotates on the shell 407. The outer walls of the two shells 407 are fixedly connected to the inner wall of the arc furnace body 2, and the shell 407 is fixed in the arc furnace body 2.
[0026] Working principle:
[0027] When steelmaking is required in an electric arc furnace:
[0028] Steelmaking raw material charging stage:
[0029] First, connect the external power supply of the first motor 301, start the first motor 301, the first motor 302 drives the first bevel gear 303 to rotate, the first bevel gear 303 drives the second bevel gear 304 to rotate, the second bevel gear 304 drives the third bevel gear 305 to rotate, and at the same time, the first bevel gear 303 drives the first connecting rod 306 to rotate, the third bevel gear 305 drives the second connecting rod 307 to rotate, the first connecting rod 306 drives the first diverter plate 7 to rotate, and the second connecting rod 307 drives the second diverter plate 8 to rotate. After the first diverter plate 7 and the second diverter plate 8 rotate to a suitable angle, the first motor 301 stops working, and then the operator pours the steelmaking raw materials on the first diverter plate 7 and the second diverter plate 8, and the first diverter plate 7 and the second diverter plate 8 disperse the steelmaking raw materials and fall on the filter screen 6.
[0030] Steelmaking raw material filtration stage:
[0031] Connect the external power supply of the second motor 402, start the second motor 402, the second motor 402 drives the rotating rod 403 to rotate, the rotating rod 403 drives the cam 404 to rotate, the cam 404 drives the slider 405 to move, the slider 405 drives the lifting rod 406 to move, the lifting rod 406 drives the knocking block 5 to move, the knocking block 5 knocks the filter 6 to prevent the filter 6 from being blocked, the steelmaking raw materials of qualified size fall into the arc furnace body 2, and the steelmaking raw materials of oversized size remain above the filter 6. After the feeding is completed, the second motor 402 stops working.
[0032] Steelmaking stage:
[0033] The external power supply of the third motor 9 is connected, and the third motor 9 is started. The third motor 9 drives the stirring rod 10 to rotate, and the stirring rod 10 stirs the steelmaking raw materials to make them react more fully. After the steelmaking is completed, the third motor 9 and the discharge plate 11 are turned off, and the filter screen 6 is removed and the processed steelmaking raw materials are taken out to realize the steelmaking work of the electric arc furnace.
[0034] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.
Claims
1. An electric arc furnace for steelmaking, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to the arc furnace body (2); a material distribution mechanism (3) is provided inside the arc furnace body (2); a filtering and screening mechanism (4) is provided inside the arc furnace body (2); the inner wall of the arc furnace body (2) is movably connected to a filter screen (6); the outer wall of the filter screen (6) is in contact with the outer walls of two knocking blocks (5); the inner wall of the base (1) is fixedly connected to a third motor (9) through a bracket; the output shaft of the third motor (9) is fixedly connected to a stirring rod (10); the outer wall of the stirring rod (10) is rotatably connected to the arc furnace body (2) through a bearing; a rubber sealing ring is installed at the contact point between the stirring rod (10) and the arc furnace body (2).
2. The electric arc furnace for steelmaking according to claim 1, characterized in that: The material distribution mechanism (3) comprises a first motor box (301), the outer wall of the first motor box (301) is fixedly connected to the outer wall of the arc furnace body (2), the outer wall of the first motor box (301) is processed with heat dissipation holes, the inner wall of the first motor box (301) is fixedly connected to the first motor (302) through a bracket, the output shaft of the first motor (302) is fixedly connected to the first bevel gear (303), the outer wall of the first bevel gear (303) is meshed and connected to the second bevel gear (304), and the second bevel gear (304) is meshed and connected to the second bevel gear (304). The outer wall of the wheel (304) is rotatably connected to the first motor box (301) through a pin shaft, the outer wall of the second bevel gear (304) is meshedly connected to the third bevel gear (305), the outer wall of the first bevel gear (303) is fixedly connected to the first connecting rod (306), the outer wall of the first connecting rod (306) is sleeved with the third bevel gear (305) through a through hole, the outer wall of the third bevel gear (305) is fixedly connected to the second connecting rod (307), and the second connecting rod (307) is sleeved with the first connecting rod (306).
3. The electric arc furnace for steelmaking according to claim 2, characterized in that: The outer wall of the first connecting rod (306) is fixedly connected to the first splitter plate (7), and the outer wall of the second connecting rod (307) is fixedly connected to the second splitter plate (8).
4. The electric arc furnace for steelmaking according to claim 1, characterized in that: The filtering and screening mechanism (4) comprises a second motor box (401), the outer wall of the second motor box (401) is fixedly connected to the arc furnace body (2), the inner wall of the second motor box (401) is fixedly connected to the second motor (402) via a bracket, the output shaft of the second motor (402) is fixedly connected to a rotating rod (403), the outer wall of the rotating rod (403) is fixedly connected to two cams (404), the outer walls of the two cams (404) are slidably connected to a slider (405) via grooves processed on the surface, the outer wall of the slider (405) is fixedly connected to a lifting rod (406), the outer wall of the rotating rod (403) is rotatably connected to two shells (407) via bearings, and the outer walls of the two shells (407) are fixedly connected to the inner wall of the arc furnace body (2).
5. The electric arc furnace for steelmaking according to claim 4, characterized in that: The outer walls of the two lifting rods (406) are fixedly connected to the knocking block (5), and the outer wall of the rotating rod (403) is rotatably connected to the inner wall of the arc furnace body (2) via a bearing.
6. The electric arc furnace for steelmaking according to claim 3, characterized in that: The outer walls of the first diverter plate (7) and the second diverter plate (8) are both adjacent to the inner wall of the electric arc furnace body (2), and the first diverter plate (7) and the second diverter plate (8) are movably connected by a pin shaft.