Steelmaking equipment

Abstract

The utility model relates to the technical field of steelmaking, in particular to steelmaking equipment which comprises a steelmaking furnace, a movable seat arranged below the steelmaking furnace, supporting plates symmetrically arranged on the upper surface of the movable seat, a hydraulic cylinder arranged in the middle of the lower surface of a U-shaped frame, an electric push rod arranged on the rear end face of the U-shaped frame and a fixed seat arranged below the movable seat. A driving assembly for adjusting the reciprocating motion of the movable seat is arranged on the upper surface of the fixed seat close to the left end; according to the steel-making equipment, the steel-making furnace with the protective cover is rotationally connected with the supporting plate on the movable base under the cooperation of the main shaft, the top of the supporting plate is matched with the U-shaped frame with the hydraulic cylinder and the electric push rod, the telescopic arm of the hydraulic cylinder stretches or retracts to achieve overturning cooperation of the steel-making furnace, and the movable base is matched with the T-shaped groove in the fixed base in an inserted mode; the movable seat horizontally reciprocates left and right on the fixed seat, so that a mixed solid-liquid mixture in the steelmaking furnace shakes back and forth, and the interior is uniformly mixed through continuous shaking.

Description

Technical Field

[0001] This utility model relates to the field of steelmaking technology, specifically to a steelmaking equipment. Background Technology

[0002] Steelmaking furnaces are indispensable equipment in steel production. They convert pig iron into steel through processes such as high temperature and high pressure.

[0003] However, steelmaking furnaces are usually stationary. After the iron filings inside are smelted at high temperatures, the mixture is not uniform. The iron filings at the edges melt at high temperatures, while the iron filings in the middle remain solid. This requires continuous and prolonged heating, which increases energy consumption. It is not advisable to shake the steelmaking furnace back and forth to reduce the impact of uneven solid-liquid mixing. The stirring rods that extend into the steelmaking furnace are easily melted by the high temperature, thus failing to achieve the desired mixing effect. Summary of the Invention

[0004] The purpose of this invention is to provide a steelmaking equipment to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A steelmaking device includes a steelmaking furnace, a movable seat is provided below the steelmaking furnace, support plates are symmetrically provided on the upper surface of the movable seat, a U-shaped frame is provided on the top of the support plates, a hydraulic cylinder is provided in the middle of the lower surface of the U-shaped frame, an electric push rod is provided on the rear end face of the U-shaped frame, a fixed seat is provided below the movable seat, and a drive component for adjusting the reciprocating movement of the movable seat is provided near the left end on the upper surface of the fixed seat.

[0007] The steelmaking furnace is equipped with a protective cover on the top, a pad on the lower surface of the protective cover, an exhaust pipe on the upper surface of the protective cover, main shafts on both sides of the steelmaking furnace, the main shafts being rotatably connected to the support plate, and a hinged seat rotatably connected to the telescopic arm of a hydraulic cylinder at the bottom of the outer wall of the steelmaking furnace.

[0008] A T-shaped groove is provided on the upper surface of the fixed base at the location corresponding to the movable base, and a protrusion is provided on the left end face of the movable base near the top;

[0009] The drive assembly includes a motor, a cam disk, and a connecting rod. The output shaft of the motor is provided with a first gear. The cam disk has a rotating shaft in the middle. The rotating shaft is rotatably connected to the moving seat. A second gear is provided on the rotating shaft at a position corresponding to the first gear. A convex shaft is provided on the upper surface of the cam disk near the edge. One end of the connecting rod is rotatably connected to a protrusion, and the other end is rotatably connected to the convex shaft.

[0010] Furthermore, the outer diameter of the protective cover is adapted to the outer diameter of the steelmaking furnace, the pad and the protective cover are integrally formed, the outer diameter of the pad is adapted to the inner diameter of the steelmaking furnace, and the main shaft and the steelmaking furnace are integrally formed.

[0011] In this invention, the protective cover, in conjunction with the pad, is tightly inserted into the steelmaking furnace to seal the interior and reduce the impact of molten steel being thrown out when the furnace swings back and forth.

[0012] Specifically, the steelmaking furnace has a guide nozzle near the edge of the top, the hinge seat is an integral structure with the steelmaking furnace, the bottom of the hydraulic cylinder is rotatably connected to the U-shaped frame, and the telescopic arm of the hydraulic cylinder extends into the hinge seat and is rotatably connected to the hinge seat.

[0013] In this invention, the guide nozzle helps guide the internal molten steel out. After the protective cover is inserted, the pad covers and seals the guide nozzle, preventing the internal molten steel from being thrown out of the guide nozzle. The extension or retraction of the hydraulic cylinder arm allows for the tilting and adjustment of the steelmaking furnace. When the arm is extended, the steelmaking furnace remains vertical. The high-temperature structure of the steelmaking furnace is activated to melt the internal iron filings at high temperature. When the arm is retracted, the steelmaking furnace rotates around the main shaft, and the high-temperature molten steel is poured out from the guide nozzle for use.

[0014] It should be noted that the electric push rod is fixedly connected to the protruding block at the rear end of the U-shaped frame by screws, the telescopic arm of the electric push rod is fixedly connected to the protective cover by screws, and the U-shaped frame is fixedly connected to the top of the movable seat by screws.

[0015] In this invention, the electric push rod is connected to an external power source. When it is necessary to pour out the internal molten steel, the telescopic arm of the electric push rod is shortened, so that the protective cover is lifted up and away from the steelmaking furnace. When the steelmaking furnace needs to be melted at high temperature, the material is added to the steelmaking furnace from the top. The telescopic arm of the electric push rod is extended, and when the steelmaking furnace is in a vertical position, it pushes the protective cover to be inserted and engaged with the top of the steelmaking furnace.

[0016] Furthermore, the movable seat is T-shaped, and the width of the outer wall of the bottom of the movable seat is adapted to the width of the inner wall of the T-shaped groove. A guide plate is provided between the two support plates near the bottom. The two ends of the guide plate are welded and fixed to the corresponding support plates respectively, and the front end of the guide plate is higher than the rear end.

[0017] In this invention, the movable seat slides into the T-slot, enabling the movable seat with the steelmaking furnace to move horizontally on the fixed seat. This allows for continuous sloshing of the molten steel inside the furnace, achieving solid-liquid mixing and reducing uneven mixing, thus increasing the energy consumption of the furnace.

[0018] It is worth noting that the motor is fixedly connected to the upper surface of the fixed base by screws, the first gear is welded to the output shaft of the motor, the output shaft is rotatably connected to the fixed base, the cam disk is welded to the rotating shaft, the second gear is welded to the rotating shaft, the rotating shaft is rotatably connected to the fixed base, and the left end of the fixed base is provided with an installation groove, in which the second gear and the first gear are correspondingly engaged.

[0019] In this invention, the motor is connected to an external power source via a wire, and the control switch controls the output shaft to rotate. The first gear meshes with the second gear, thereby rotating the output shaft and driving the cam disc to rotate. The mounting slot facilitates the insertion and installation of the first gear and the second gear.

[0020] Furthermore, the cam shaft and the cam disk are integrally formed, the left end of the connecting rod is rotatably connected to the cam shaft, and the right end of the connecting rod is rotatably connected to the pin on the cam.

[0021] In this invention, a connecting rod connects the cam disc and the fixed seat. The cam disc rotates continuously, enabling the connecting rod to drive the moving seat to move horizontally back and forth.

[0022] In addition, positioning blocks are provided on both sides of the outer wall of the fixed base near the bottom. The positioning blocks and the fixed base are integrally formed, and positioning holes are provided on the positioning blocks.

[0023] In this utility model, the positioning block is fitted with positioning holes, and external screws pass through the positioning holes to fix it to the ground, thereby fixing the position of the fixing seat.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] 1. This utility model involves a steelmaking furnace with a protective cover that is rotatably connected to a support plate on a movable seat with the cooperation of a main shaft. The top of the support plate is fitted with a U-shaped frame with a hydraulic cylinder and an electric push rod. The extension or retraction of the hydraulic cylinder's telescopic arm enables the steelmaking furnace to flip. The movable seat is inserted into a T-slot on a fixed seat. With the cooperation of the drive assembly, the movable seat moves horizontally back and forth on the fixed seat, causing the solid-liquid mixture inside the steelmaking furnace to shake back and forth. The continuous shaking makes the internal mixing uniform, reducing the melting of edge debris and the increased energy consumption caused by the lack of melting in the middle.

[0026] This invention increases the sealing of the guide nozzle on the steelmaking furnace by adding a pad to block the protective cover when it is closed, thereby reducing the splashing of molten steel inside when it is shaken. The motor provides power, the first gear meshes with the second gear, and the output shaft drives the cam disk to rotate continuously. The cam shaft on the cam disk is rotatably connected to the cam on the moving seat under the cooperation of the connecting rod. The rotation of the cam disk drives the moving seat to move back and forth, so as to realize the back and forth shaking of the molten steel inside the steelmaking furnace for solid-liquid mixing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the tilted state after the processing of this utility model;

[0029] Figure 3 This is a schematic diagram of the steelmaking furnace structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the fixing base structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the combination of the drive component and the movable base of this utility model.

[0032] The meanings of the labels in the diagram are as follows:

[0033] 1. Steelmaking furnace; 10. Protective cover; 100. Pad plate; 101. Exhaust pipe; 11. Main shaft; 12. Hinge seat; 13. Flow guide nozzle;

[0034] 2. Movable seat; 20. Protrusion; 21. Support plate; 210. Guide plate; 22. U-shaped frame;

[0035] 3. Fixing base; 30. T-slot; 31. Mounting slot; 32. Positioning block;

[0036] 4. Hydraulic cylinder;

[0037] 5. Electric linear actuator;

[0038] 6. Drive assembly; 60. Motor; 600. First gear; 61. Cam plate; 610. Rotating shaft; 611. Second gear; 612. Cam shaft; 62. Connecting rod. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Please see Figures 1-5 This embodiment provides a technical solution:

[0041] A steelmaking device includes a steelmaking furnace 1, a movable seat 2 below the steelmaking furnace 1, support plates 21 symmetrically arranged on the upper surface of the movable seat 2, a U-shaped frame 22 on the top of the support plates 21, a hydraulic cylinder 4 in the middle of the lower surface of the U-shaped frame 22, an electric push rod 5 on the rear end face of the U-shaped frame 22, the electric push rod 5 being fixedly connected to the protrusion on the rear end of the U-shaped frame 22 by screws, the telescopic arm of the electric push rod 5 being fixedly connected to the protective cover 10 by screws, and the U-shaped frame 22 being fixedly connected to the top of the movable seat 2 by screws.

[0042] In this utility model, the electric push rod 5 is connected to an external power source. When it is necessary to pour out the internal molten steel, the telescopic arm of the electric push rod 5 is shortened, so that the protective cover 10 is lifted upward and away from the steelmaking furnace 1. When the steelmaking furnace 1 needs to be melted at high temperature, the material is added to the steelmaking furnace 1 from the top. The telescopic arm of the electric push rod 5 is extended. When the steelmaking furnace 1 is in a vertical position, the protective cover 10 is pushed to be inserted and engaged with the top of the steelmaking furnace 1.

[0043] Furthermore, a fixed seat 3 is provided below the movable seat 2, and a drive component 6 for adjusting the reciprocating movement of the movable seat 2 is provided on the upper surface of the fixed seat 3 near the left end;

[0044] Specifically, the top of the steelmaking furnace 1 is provided with a protective cover 10, the lower surface of the protective cover 10 is provided with a pad 100, the upper surface of the protective cover 10 is provided with an exhaust pipe 101, the two sides of the steelmaking furnace 1 are provided with main shafts 11, the main shafts 11 are rotatably connected to the support plate 21, and the bottom of the outer wall of the steelmaking furnace 1 is also provided with a hinge seat 12 rotatably connected to the telescopic arm of the hydraulic cylinder 4.

[0045] Secondly, the outer diameter of the protective cover 10 is adapted to the outer diameter of the steelmaking furnace 1, the pad 100 and the protective cover 10 are integrally formed, the outer diameter of the pad 100 is adapted to the inner diameter of the steelmaking furnace 1, and the main shaft 11 and the steelmaking furnace 1 are integrally formed.

[0046] In this utility model, the protective cover 10 is tightly inserted into the steelmaking furnace 1 with the cooperation of the pad 100 to seal the inside and reduce the impact of the internal molten steel being thrown out when swinging left and right. The main shaft 11 and the support plate 21 are rotated to facilitate the flipping of the steelmaking furnace 1.

[0047] It should be noted that a guide nozzle 13 is provided near the edge of the top of the steelmaking furnace 1, the hinge seat 12 is an integrally formed structure with the steelmaking furnace 1, the bottom of the hydraulic cylinder 4 is rotatably connected to the U-shaped frame 22, and the telescopic arm of the hydraulic cylinder 4 extends into the hinge seat 12 and is rotatably connected to the hinge seat 12.

[0048] In this invention, the guide nozzle 13 helps guide the internal molten steel out. After the protective cover 10 is inserted, the pad 100 covers and seals the guide nozzle 13 to prevent the internal molten steel from being thrown out of the guide nozzle 13. The extension or retraction arm of the hydraulic cylinder 4 extends or retracts to achieve the tilting adjustment of the steelmaking furnace 1. When the extension arm extends, the steelmaking furnace 1 is kept in a vertical position. The high-temperature structure of the steelmaking furnace 1 is activated to melt the internal iron filings at high temperature. When the extension arm of the hydraulic cylinder 4 retracts, the steelmaking furnace 1 rotates around the main shaft 11. The high-temperature molten steel is poured out from the guide nozzle 13 for use.

[0049] Furthermore, a T-shaped groove 30 is provided on the upper surface of the fixed seat 3 corresponding to the movable seat 2, and a protrusion 20 is provided on the left end face of the movable seat 2 near the top; the movable seat 2 is T-shaped, and the width of the outer wall of the bottom of the movable seat 2 is adapted to the width of the inner wall of the T-shaped groove 30. A guide plate 210 is provided between the two support plates 21 near the bottom, and the two ends of the guide plate 210 are welded and fixed to the corresponding support plates 21 respectively, with the front end of the guide plate 210 being higher than the rear end.

[0050] In this invention, the movable seat 2 and the T-slot 30 are slidably engaged, so that the movable seat 2 carrying the steelmaking furnace 1 can move horizontally on the fixed seat 3, thereby realizing continuous shaking of the molten steel inside the steelmaking furnace 1. By continuously shaking the molten steel inside, solid-liquid mixing is achieved, reducing uneven solid-liquid mixing inside and increasing the energy consumption of the steelmaking furnace 1.

[0051] It is worth noting that the drive assembly 6 includes a motor 60, a cam disk 61, and a connecting rod 62. The output shaft of the motor 60 is provided with a first gear 600. The cam disk 61 is provided with a rotating shaft 610 in the middle. The rotating shaft 610 is rotatably connected to the movable seat 2. A second gear 611 is provided on the rotating shaft 610 at the position corresponding to the first gear 600. A convex shaft 612 is provided on the upper surface of the cam disk 61 near the edge. One end of the connecting rod 62 is rotatably connected to the protrusion 20, and the other end is rotatably connected to the convex shaft 612.

[0052] Furthermore, the motor 60 is fixedly connected to the upper surface of the fixed base 3 by screws, the first gear 600 is welded and fixed to the output shaft of the motor 60, the output shaft is rotatably connected to the fixed base 3, the cam disk 61 is welded and fixed to the rotating shaft 610, the second gear 611 is welded and fixed to the rotating shaft 610, the rotating shaft 610 is rotatably connected to the fixed base 3, and the left end of the fixed base 3 is provided with an installation groove 31, in which the second gear 611 and the first gear 600 are correspondingly engaged in the installation groove 31.

[0053] In this utility model, the motor 60 is connected to an external power source through a wire, and the control switch controls the output shaft to rotate. The first gear 600 meshes with the second gear 611, so that the output shaft rotates and drives the cam disk 61 to rotate. The mounting slot 31 facilitates the insertion and installation of the first gear 600 and the second gear 611.

[0054] Furthermore, the cam shaft 612 and the cam disk 61 are integrally formed, the left end of the connecting rod 62 is rotatably connected to the cam shaft 612, and the right end of the connecting rod 62 is rotatably connected to the pin on the protrusion 20.

[0055] In this utility model, the connecting rod 62 connects the cam disk 61 and the fixed seat 3. The cam disk 61 rotates continuously, so that the connecting rod 62 drives the moving seat 2 to move horizontally back and forth.

[0056] In addition, positioning blocks 32 are provided on the outer walls of both sides of the fixed base 3 near the bottom. The positioning blocks 32 and the fixed base 3 are integrally formed, and positioning holes are provided on the positioning blocks 32.

[0057] In this utility model, the positioning block 32 is fitted with a positioning hole, and an external screw passes through the positioning hole to be fixed to the ground, thereby fixing the position of the fixing seat 3.

[0058] In this embodiment, when the steelmaking equipment is in use, the support plate 21 with U-shaped frame 22 and guide plate 210 is first fixed together with the movable seat 2, and the movable seat 2 is inserted into the T-slot 30 on the fixed seat 3. The protective cover 10 with pad plate 100 and exhaust pipe 101 is inserted into the steelmaking furnace 1. The bottom of the hydraulic cylinder 4 is rotatably connected to the U-shaped frame 22, and the telescopic arm of the hydraulic cylinder 4 is rotatably connected to the hinge seat 12. The electric push rod 5 is fixed on the U-shaped frame 22, and the telescopic arm of the electric push rod 5 is fixedly combined with the protective cover 10. The steelmaking furnace 1 is rotatably connected to the support plate 21 through the main shaft 11. The motor 60 is fixed on the fixed seat 3. The cam disk 61 with cam shaft 612 is rotatably connected to the fixed seat 3 through the rotating shaft 610. The first gear 600 meshes with the second gear 611, and one end of the connecting rod 62 is rotatably connected to the cam shaft 612, and the other end is rotatably connected to the pin on the protrusion 20.

[0059] When it is necessary to melt iron filings for steelmaking, the filings are added from the top of the steelmaking furnace 1. The telescopic arm of the hydraulic cylinder 4 is extended, keeping the steelmaking furnace 1 vertical. Then, the telescopic arm of the electric push rod 5 is extended, and the protective cover 10 is inserted into the steelmaking furnace 1 via a pad 100, which seals the bottom of the guide nozzle 13. Then, the high-temperature heating components on the steelmaking furnace 1 are activated to melt the internal filings at high temperature. The motor 60 is started, and the output shaft rotates. Under the cooperation of the first gear 600 and the second gear 611... The cam disk 61 rotates continuously, and the connecting rod 62 connects to the movable seat 2, so that the steelmaking furnace 1 and the movable seat 2 move back and forth synchronously and continuously. The molten steel in the steelmaking furnace 1 continuously sways back and forth, increasing the uniformity of solid-liquid mixing. While the movable seat 2 is swaying continuously, the hydraulic cylinder 4 is controlled to extend or shorten the telescopic arm by a short distance, so that the steelmaking furnace 1 can swing back and forth while swaying left and right, increasing the uniformity of the swaying of the molten steel inside, so that the solid and liquid are fully mixed, which facilitates full melting and reduces incomplete melting caused by local melting.

[0060] After steelmaking is completed, the motor 60 is disconnected from the power supply, the moving seat 2 stops moving, the telescopic arm of the control electric push rod 5 is shortened, the protective cover 10 is opened, and then the telescopic arm of the control hydraulic cylinder 4 is shortened, realizing the flipping of the steelmaking furnace 1. The internal molten steel is poured out through the guide nozzle 13 and enters the guide plate 210 for centralized discharge.

Claims

1. A steelmaking apparatus, comprising a steelmaking furnace (1), characterized in that: The steelmaking furnace (1) is provided with a movable seat (2) below it. The upper surface of the movable seat (2) is symmetrically provided with support plates (21). The top of the support plate (21) is provided with a U-shaped frame (22). The lower surface of the U-shaped frame (22) is provided with a hydraulic cylinder (4). The rear end face of the U-shaped frame (22) is provided with an electric push rod (5). The movable seat (2) is provided with a fixed seat (3) below it. The upper surface of the fixed seat (3) near the left end is provided with a drive assembly (6) for adjusting the reciprocating movement of the movable seat (2). The steelmaking furnace (1) is provided with a protective cover (10) on the top, a pad (100) on the lower surface of the protective cover (10), an exhaust pipe (101) on the upper surface of the protective cover (10), a main shaft (11) on both sides of the steelmaking furnace (1), the main shaft (11) being rotatably connected to the support plate (21), and a hinge seat (12) rotatably connected to the telescopic arm of the hydraulic cylinder (4) at the bottom of the outer wall of the steelmaking furnace (1). A T-shaped groove (30) is provided on the upper surface of the fixed seat (3) corresponding to the movable seat (2), and a protrusion (20) is provided on the left end face of the movable seat (2) near the top. The drive assembly (6) includes a motor (60), a cam disk (61) and a connecting rod (62). The output shaft of the motor (60) is provided with a first gear (600). The cam disk (61) is provided with a rotating shaft (610) in the middle. The rotating shaft (610) is rotatably connected to the moving seat (2). A second gear (611) is provided on the rotating shaft (610) at a position corresponding to the first gear (600). A convex shaft (612) is provided on the upper surface of the cam disk (61) near the edge. One end of the connecting rod (62) is rotatably connected to the protrusion (20), and the other end is rotatably connected to the convex shaft (612).

2. The steelmaking equipment according to claim 1, characterized in that: The outer diameter of the protective cover (10) is adapted to the outer diameter of the steelmaking furnace (1), the pad (100) and the protective cover (10) are integrally formed, the outer diameter of the pad (100) is adapted to the inner diameter of the steelmaking furnace (1), and the main shaft (11) and the steelmaking furnace (1) are integrally formed.

3. The steelmaking equipment according to claim 1, characterized in that: The steelmaking furnace (1) is provided with a guide nozzle (13) near the edge of the top. The hinge seat (12) and the steelmaking furnace (1) are integrally formed. The bottom of the hydraulic cylinder (4) is rotatably connected to the U-shaped frame (22). The telescopic arm of the hydraulic cylinder (4) extends into the hinge seat (12) and is rotatably connected to the hinge seat (12).

4. The steelmaking equipment according to claim 1, characterized in that: The electric push rod (5) is fixedly connected to the protruding block at the rear end of the U-shaped frame (22) by screws. The telescopic arm of the electric push rod (5) is fixedly connected to the protective cover (10) by screws. The U-shaped frame (22) is fixedly connected to the top of the movable seat (2) by screws.

5. The steelmaking equipment according to claim 1, characterized in that: The movable seat (2) is T-shaped. The width of the outer wall of the bottom of the movable seat (2) is adapted to the width of the inner wall of the T-slot (30). A guide plate (210) is provided between the two support plates (21) near the bottom. The two ends of the guide plate (210) are welded and fixed to the corresponding support plates (21). The front end of the guide plate (210) is higher than the rear end.

6. The steelmaking equipment according to claim 1, characterized in that: The motor (60) is fixedly connected to the upper surface of the fixed seat (3) by screws. The first gear (600) is welded and fixed to the output shaft of the motor (60). The output shaft is rotatably connected to the fixed seat (3). The cam disk (61) is welded and fixed to the rotating shaft (610). The second gear (611) is welded and fixed to the rotating shaft (610). The rotating shaft (610) is rotatably connected to the fixed seat (3). The left end of the fixed seat (3) is provided with an installation groove (31). The second gear (611) and the first gear (600) are correspondingly engaged in the installation groove (31).

7. The steelmaking equipment according to claim 1, characterized in that: The cam shaft (612) and the cam disk (61) are integrally formed. The left end of the connecting rod (62) is rotatably connected to the cam shaft (612), and the right end of the connecting rod (62) is rotatably connected to the pin on the protrusion (20).

8. The steelmaking equipment according to claim 1, characterized in that: Positioning blocks (32) are provided on both sides of the outer wall near the bottom. The positioning blocks (32) and the fixing base (3) are integrally formed. Positioning holes are provided on the positioning blocks (32).

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