Converter steelmaking device

Abstract

The utility model relates to a converter steelmaking device and belongs to the technical field of steelmaking in the metallurgical industry. According to the technical scheme, the device comprises a top plate (1), a rotating mechanism (2) and a converter assembly (4), the rotating mechanism (2) is installed on the top plate (1), and the converter assembly (4) is located below the top plate (1); the upper ends of two parallel supporting cantilevers (41) in the converter assembly (4) are fixed to the top plate (1), and the lower ends of the two parallel supporting cantilevers (41) are rotationally connected with the converter body (42) through shafts. The rotating mechanism (2) comprises a pushing assembly (21), a protection assembly (22), an adjusting assembly (23) and a connecting assembly (24), two sliding blocks (212) in the pushing assembly (21) are connected to the top plate (1) in a sliding mode in the horizontal state, each sliding block (212) is connected with a first hydraulic telescopic rod (211), and the rotating mechanism has the beneficial effect that a certain external auxiliary support can be provided for a furnace body.

Description

Technical Field

[0001] This utility model relates to a converter steelmaking device, belonging to the field of steelmaking technology in the metallurgical industry. Background Technology

[0002] Converter steelmaking uses molten iron, scrap steel, and ferroalloys as the main raw materials. The steelmaking process is completed in the converter by relying on the physical heat of the molten iron itself and the heat generated by the chemical reaction between the components of the molten iron. Basic oxygen top-blown and top-bottom combined-blown converters are the most commonly used steelmaking equipment due to their fast production speed, large output, high single furnace output, low cost, and low investment. Converters are mainly used for the smelting of carbon steel, alloy steel, copper, and nickel.

[0003] A search revealed that patent number "CN214300229U" discloses "a converter steelmaking device using magnesium carbon balls as a slagging agent, comprising a top plate, an anti-rotation mechanism, and an adjustment mechanism; the top plate has symmetrically arranged tie rods on its lower surface, with a furnace body rotatably connected between the two tie rods, a discharge port on the left end of the furnace body, a first motor on the right end of the upper surface of the top plate, a wire wheel with steel wire wound inside the output shaft of the first motor, and a rotating shaft at the lower end of the steel wire rotatably connected to an opening at the right end of the furnace body; the anti-rotation mechanism is symmetrically arranged inside the mounting grooves of the convex shafts at both ends of the furnace body; the adjustment mechanism is located in the middle of the top plate, with a working oxygen lance at the lower end of the adjustment mechanism; this converter steelmaking device using magnesium carbon balls as a slagging agent can prevent accidental rotation of the furnace body during material unloading, facilitate adjustment of the height of the working oxygen lance, ensure proper slagging and rapid decarburization, and guarantee uniform heating of the molten pool." When the furnace body is tilted during use, the convex shafts at both ends of the furnace body rotate relative to the circular holes at the lower end of the pull rod. At this time, under the elastic force of the spring, the locking block contacts the locking groove inside the through hole at the lower end of the pull rod, causing the locking block to move. When the furnace body rotates in the opposite direction, the locking block engages with the locking groove inside the through hole at the lower end of the pull rod, fixing the furnace body and preventing accidental rotation of the furnace body during material pouring. When the furnace body needs to be reset, the external control switch group controls the electromagnet to work. The electromagnet generates magnetic force to attract adjacent locking blocks, thereby separating the locking blocks from the locking groove inside the through hole at the lower end of the pull rod, and resetting the furnace body. However, this device limits movement through rotating parts, which is prone to severe wear and lacks external auxiliary support structures. Utility Model Content

[0004] The purpose of this invention is to provide a converter steelmaking device that can provide certain external auxiliary support for the furnace body, thereby solving the problems existing in the background technology.

[0005] The technical solution of this utility model is:

[0006] A converter steelmaking apparatus includes a top plate, a rotating mechanism, and a converter assembly. The rotating mechanism is mounted on the top plate, and the converter assembly is located below the top plate.

[0007] The converter assembly includes a support cantilever, a furnace body, an extension rod, and a load-bearing shaft. The upper ends of the two parallel support cantilevers are fixed to the top plate, and the lower ends are rotatably connected to the furnace body through shafts. An extension rod is fixedly connected to one side of the furnace body, and a load-bearing shaft is fixedly connected to the extension rod.

[0008] The rotating mechanism includes a pushing component, a protective component, an adjusting component, and a connecting component. The pushing component includes two first hydraulic telescopic rods and two sliders. The two sliders are slidably connected to the top plate in a horizontal state, and each slider is connected to one of the first hydraulic telescopic rods.

[0009] The protective assembly includes a second hydraulic telescopic rod and an arc-shaped support frame. The upper ends of the two second hydraulic telescopic rods are respectively fixed to the bottom of the slider, and the lower ends of the two second hydraulic telescopic rods are respectively connected to the arc-shaped support frame. The arc-shaped support frame cooperates with the furnace body.

[0010] The adjustment assembly includes a drive motor and a drive shaft. The drive motor is fixed on the top plate and connected to the drive shaft.

[0011] The connecting assembly includes a steel rope and a fixing ring. The upper end of the steel rope is wound around the drive shaft, and the lower end of the steel rope is connected to the fixing ring, which is set on the load-bearing shaft.

[0012] Furthermore, the distance between the two parallel supporting cantilever arms is matched with the outer diameter of the furnace body.

[0013] Furthermore, the extension rod is located near the bottom of the furnace body.

[0014] Furthermore, the top plate is also equipped with an air supply assembly, which includes a third hydraulic telescopic rod and a working oxygen lance. The third hydraulic telescopic rod is fixed to the top plate and is drivenly connected to the working oxygen lance, which cooperates with the furnace body.

[0015] Furthermore, the working oxygen lance is located directly above the furnace body.

[0016] The beneficial effects of this utility model are:

[0017] (1) By adding an external auxiliary support structure through a rotating mechanism, it is convenient to provide support balance. The drive motor provides power to drive the drive shaft to rotate, so that the number of turns of the steel rope wound on the outside changes, thereby adjusting the outer length, thereby pulling up the fixed ring and tilting the furnace body. The first hydraulic telescopic rod extends and retracts to push the slider, while the second hydraulic telescopic rod extends and retracts to control the vertical height of the arc support frame, providing a certain external auxiliary support for the furnace body. When reset, the arc support frame returns to its original position and fits against the outside of the furnace body to prevent tilting.

[0018] (2) The working oxygen lance is extended into the furnace body through the third hydraulic telescopic rod to provide oxygen for reaction. After the work is completed, the third hydraulic telescopic rod retracts to remove the working oxygen lance from the furnace body, which facilitates the rotation of the furnace body. The support cantilever provides support for the furnace body and a rotation structure. The extension rod provides a certain extension distance to facilitate the rotation structure of the load-bearing shaft and the fixed ring. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the gas supply component and converter component of this utility model;

[0021] Figure 3 This is a schematic diagram of the pushing component, protective component, and adjusting component of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection component structure of this utility model;

[0023] In the diagram: 1. Top plate; 2. Rotation mechanism; 3. Gas supply assembly; 4. Converter assembly;

[0024] 21. Pushing assembly; 22. Protective assembly; 23. Adjustment assembly; 24. Connecting assembly;

[0025] 211. First hydraulic telescopic rod; 212. Slider; 221. Second hydraulic telescopic rod; 222. Arc-shaped support frame; 231. Drive motor; 232. Drive shaft; 241. Steel rope; 242. Fixing ring;

[0026] 31. Third hydraulic telescopic rod; 32. Working oxygen lance;

[0027] 41. Support cantilever; 42. Furnace body; 43. Extension rod; 44. Load-bearing shaft. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and examples.

[0029] See attached document Figure 1-4A converter steelmaking apparatus includes a top plate 1, a rotating mechanism 2, and a converter assembly 4. The rotating mechanism 2 is installed on the top plate 1, and the converter assembly 4 is located below the top plate 1.

[0030] The converter assembly 4 includes a support cantilever 41, a furnace body 42, an extension rod 43, and a load-bearing shaft 44. The upper ends of the two parallel support cantilever 41 are fixed on the top plate 1, and the lower ends are rotatably connected to the furnace body 42 through shafts. An extension rod 43 is fixedly connected to one side of the furnace body 42, and a load-bearing shaft 44 is fixedly connected to the extension rod 43.

[0031] The rotating mechanism 2 includes a pushing component 21, a protective component 22, an adjusting component 23, and a connecting component 24. The pushing component 21 includes two first hydraulic telescopic rods 211 and two sliders 212. The two sliders 212 are slidably connected to the top plate 1 in a horizontal state. Each slider 212 is connected to one of the first hydraulic telescopic rods 211.

[0032] The protective component 22 includes a second hydraulic telescopic rod 221 and an arc-shaped support frame 222. The upper ends of the two second hydraulic telescopic rods 221 are respectively fixed to the bottom of the slider 212, and the lower ends of the two second hydraulic telescopic rods 221 are respectively connected to the arc-shaped support frame 222. The arc-shaped support frame 222 cooperates with the furnace body 42.

[0033] The adjustment assembly 23 includes a drive motor 231 and a drive shaft 232. The drive motor 231 is fixed on the top plate 1 and the drive motor 231 is connected to the drive shaft 232.

[0034] The connecting assembly 24 includes a steel rope 241 and a fixing ring 242. The upper end of the steel rope 241 is wound around the drive shaft 232, and the lower end of the steel rope 241 is connected to the fixing ring 242, which is set on the load-bearing shaft 44.

[0035] In this example, refer to the appendix. Figure 1-4 The converter steelmaking unit includes a top plate 1, a swivel mechanism 2, a gas supply assembly 3, and a converter assembly 4, wherein:

[0036] The converter assembly 4 is located below the top plate 1. The converter assembly 4 includes a support cantilever 41, a furnace body 42, an extension rod 43, and a load-bearing shaft 44. There are two parallel support cantilever arms 41, with their upper ends fixed to the top plate 1 and their lower ends rotatably connected to the furnace body 42 via shafts. An extension rod 43 is fixedly connected to the outer side of the furnace body 42, and a load-bearing shaft 44 is fixedly connected to one side of the extension rod 43. The support cantilever arms 41 provide support and a rotation structure for the furnace body 42, and the extension rod 43 provides a certain extension distance to facilitate the rotation structure between the load-bearing shaft 44 and the fixed ring 242.

[0037] The rotating mechanism 2 includes a pushing assembly 21, a protective assembly 22, an adjusting assembly 23, and a connecting assembly 24. The pushing assembly 21 includes two first hydraulic telescopic rods 211 and two sliders 212. The two first hydraulic telescopic rods 211 are respectively fixed on the top plate 1. Each first hydraulic telescopic rod 211 is driven to be connected to one slider 212. The two sliders 212 are slidably connected to the top plate 1. By extending and retracting the two first hydraulic telescopic rods 211, the two sliders 212 are pushed to move horizontally, thereby adjusting the horizontal position of the arc-shaped support frame 222.

[0038] The protective component 22 includes two second hydraulic telescopic rods 221 and an arc-shaped support frame 222. The bottom ends of the two sliders 212 are respectively equipped with the second hydraulic telescopic rods 221, and the bottom ends of the two second hydraulic telescopic rods 221 are respectively fixedly connected to the arc-shaped support frame 222. The extension and retraction of the two second hydraulic telescopic rods 221 controls the vertical height of the arc-shaped support frame 222, providing certain external auxiliary support for the furnace body 42.

[0039] The adjustment assembly 23 includes a drive motor 231 and a drive shaft 232. The drive motor 231 is provided on one side of the first hydraulic telescopic rod 211, and the drive shaft 232 is connected to one end of the drive motor 231 by a key. The drive motor 231 provides power to drive the drive shaft 232 to rotate.

[0040] The connecting assembly 24 includes a steel rope 241 and a fixing ring 242. The steel rope 241 is wound around the outside of the drive shaft 232, and the fixing ring 242 is fixedly connected to the bottom end of the steel rope 241. The rotation of the drive shaft 232 changes the number of turns of the steel rope 241 wound around the outside, thereby adjusting the outer length, thereby pulling the fixing ring 242 up and tilting the furnace body 42.

[0041] The gas supply assembly 3 includes a third hydraulic telescopic rod 31 and a working oxygen lance 32. The third hydraulic telescopic rod 31 is installed on the inner side of the top plate 1, and the working oxygen lance 32 is installed at the bottom end of the third hydraulic telescopic rod 31. The working oxygen lance 32 is extended into the furnace body 42 through the third hydraulic telescopic rod 31 to provide oxygen for the reaction. After the work is completed, the third hydraulic telescopic rod 31 retracts to remove the working oxygen lance 32 from the internal space of the furnace body 42, so as to facilitate the rotation of the furnace body 42.

[0042] The working principle is as follows:

[0043] The first step is to extend the working oxygen lance 32 into the furnace body 42 through the third hydraulic telescopic rod 31 to provide oxygen for the reaction. After the work is completed, the third hydraulic telescopic rod 31 retracts to remove the working oxygen lance 32 from the internal space of the furnace body 42, so that the furnace body 42 can rotate.

[0044] The second step is that the supporting cantilever 41 provides support and rotation structure for the furnace body 42, and the extension rod 43 provides a certain extension distance to facilitate the rotation structure of the load-bearing shaft 44 and the fixed ring 242.

[0045] The third step is that the drive motor 231 provides power to drive the drive shaft 232 to rotate. The rotation of the drive shaft 232 changes the number of turns of the steel rope 241 wound on the outside, thereby adjusting the outer length, thereby pulling the fixing ring 242 up and tilting the furnace body 42.

[0046] In the fourth step, the first hydraulic telescopic rod 211 extends and retracts to push the slider 212 to adjust the horizontal position of the arc-shaped support frame 222, and the second hydraulic telescopic rod 221 extends and retracts to control the vertical height of the arc-shaped support frame 222, providing certain external auxiliary support for the furnace body 42.

Claims

1. A converter steelmaking apparatus, characterized in that: It includes a top plate (1), a rotating mechanism (2) and a converter assembly (4), wherein the rotating mechanism (2) is mounted on the top plate (1) and the converter assembly (4) is located below the top plate (1); The converter assembly (4) includes a support cantilever (41), a furnace body (42), an extension rod (43), and a load-bearing shaft (44). The upper ends of the two parallel support cantilever (41) are fixed on the top plate (1), and the lower ends are rotatably connected to the furnace body (42) through shafts. An extension rod (43) is fixedly connected to one side of the furnace body (42), and a load-bearing shaft (44) is fixedly connected to the extension rod (43). The rotating mechanism (2) includes a pushing assembly (21), a protective assembly (22), an adjusting assembly (23), and a connecting assembly (24). The pushing assembly (21) includes two first hydraulic telescopic rods (211) and two sliders (212). The two sliders (212) are slidably connected to the top plate (1) in a horizontal state. Each slider (212) is connected to one of the first hydraulic telescopic rods (211). The protective component (22) includes a second hydraulic telescopic rod (221) and an arc-shaped support frame (222). The upper ends of the two second hydraulic telescopic rods (221) are respectively fixed to the bottom of the slider (212), and the lower ends of the two second hydraulic telescopic rods (221) are respectively connected to the arc-shaped support frame (222). The arc-shaped support frame (222) cooperates with the furnace body (42). The adjustment assembly (23) includes a drive motor (231) and a drive shaft (232). The drive motor (231) is fixed on the top plate (1) and the drive motor (231) is connected to the drive shaft (232). The connecting assembly (24) includes a steel rope (241) and a fixing ring (242). The upper end of the steel rope (241) is wound around the drive shaft (232), and the lower end of the steel rope (241) is connected to the fixing ring (242). The fixing ring (242) is set on the load-bearing shaft (44).

2. The converter steelmaking apparatus according to claim 1, characterized in that: The distance between the two parallel supporting cantilever arms (41) is matched with the outer diameter of the furnace body (42).

3. The converter steelmaking apparatus according to claim 1, characterized in that: The extension rod (43) is located near the bottom of the furnace body (42).

4. A converter steelmaking apparatus according to claim 1, characterized in that: The top plate (1) is also provided with an air supply assembly (3), which includes a third hydraulic telescopic rod (31) and a working oxygen gun (32). The third hydraulic telescopic rod (31) is fixed on the top plate (1), and the third hydraulic telescopic rod (31) is driven to connect with the working oxygen gun (32). The working oxygen gun (32) cooperates with the furnace body (42).

5. A converter steelmaking apparatus according to claim 4, characterized in that: The working oxygen lance (32) is located directly above the furnace body (42).

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