Slag cleaning device for steelmaking furnace

Abstract

The utility model discloses a slag cleaning device for a steelmaking furnace, which belongs to the technical field of steelmaking and comprises a base, the top of the base is connected with the steelmaking furnace through a mounting component, a scattering mechanism is arranged at the top of the steelmaking furnace and comprises a stepping motor fixed at the top of the base, and the output end of the stepping motor is connected with a rotating shaft through a coupler. The top end of the rotating shaft is fixedly connected with a transverse plate, a material storage barrel is fixed to the top of the transverse plate, the bottom of the transverse plate is rotationally connected with a material scattering pipe communicated with the material storage barrel, the material scattering pipe is L-shaped, a plurality of material scattering openings are formed in the bottom of the material scattering pipe, and the material scattering mechanism further comprises a power assembly and a knocking assembly. The slag removal device has the beneficial effects that the power assembly drives the material scattering pipe to rotate, a slag removal agent is evenly scattered on the surface of molten steel, slag is better gathered, and the slag removal efficiency is improved; and when the material scattering pipe rotates, the material scattering pipe is knocked intermittently through the knocking assembly, so that the material scattering pipe vibrates, and a material scattering opening formed in the bottom of the material scattering pipe is prevented from being blocked.

Description

Technical Field

[0001] This utility model relates to the field of steelmaking technology, and in particular to a slag cleaning device for steelmaking furnaces. Background Technology

[0002] The working principle of a steelmaking furnace is mainly divided into two stages: smelting and refining. The core equipment includes electric arc furnaces, converters and various refining furnaces. Among them, the electric arc furnace uses the electric arc between electrodes to generate a high temperature of 4000℃ to melt raw materials such as scrap steel into molten steel.

[0003] Slag is produced during the steelmaking process. The slag floats on the surface of the molten steel and needs to be scooped out with tools. Since the slag is relatively scattered and difficult to scoop out, a slag remover is usually added before scooping to make the slag clump together, thus making it easier to scoop out.

[0004] However, most existing technologies rely on manual application of slag removers, which results in uneven application, affecting slag agglomeration and thus reducing slag removal efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a slag cleaning device for steelmaking furnaces in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A slag cleaning device for a steelmaking furnace includes a base, the top of which is connected to the steelmaking furnace via an installation assembly. A material spreading mechanism is installed on the top of the steelmaking furnace. The material spreading mechanism includes a stepper motor fixedly connected to the top of the base. The output end of the stepper motor is connected to a rotating shaft via a coupling. A horizontal plate is fixedly connected to the top of the rotating shaft, and a storage cylinder is fixedly connected to the top of the horizontal plate. A material spreading pipe, communicating with the storage cylinder, is rotatably connected to the bottom of the horizontal plate. The material spreading pipe is L-shaped, with several spreading ports at its bottom. A control valve is installed inside the material spreading pipe. The material spreading mechanism also includes a power component and a striking component. The power component drives the material spreading pipe to rotate, and the striking component strikes the material spreading pipe when it rotates.

[0008] Preferably, the power assembly includes a rotary motor fixedly connected to the top of the horizontal plate, a drive gear fixedly connected to the output end of the rotary motor, and a driven gear fixedly connected to the outer wall of the spreading pipe, the driven gear meshing with the drive gear.

[0009] Preferably, the striking assembly includes a vertical plate fixedly connected to the bottom of the horizontal plate, a sliding rod sliding left and right inside the wall of the vertical plate, both ends of the sliding rod extending out of the vertical plate, a striking hammer fixedly connected to one end of the sliding rod near the material spreading pipe, a limiting plate fixedly connected to the other end of the sliding rod, a spring fixedly connected between the striking hammer and the vertical plate, the spring being wound around the outer periphery of the sliding rod, and several circumferentially arranged protrusions fixedly connected to the outer wall of the material spreading pipe.

[0010] Preferably, the striking hammer is hemispherical and the raised outer wall is arc-shaped.

[0011] Preferably, a protective box is fixedly connected to the top of the base, the stepper motor is located inside the protective box, and the rotating shaft is rotatably connected to the protective box.

[0012] Preferably, the mounting assembly includes a mounting base fixedly connected to the top of the base, a mounting plate hinged to the top of the mounting base, a mounting groove provided on the top of the mounting base, a hydraulic cylinder hinged between the bottom of the mounting plate and the mounting groove, and a steelmaking furnace fixedly connected to the top of the mounting plate.

[0013] Preferably, the top of the storage cylinder is provided with a feeding port, and a sealing plug is threaded into the feeding port.

[0014] The beneficial effects are as follows: the power component drives the spreading pipe to rotate, which evenly sprinkles the slag removal agent on the surface of the molten steel, so that the slag can be better aggregated and the slag removal efficiency can be improved; while the spreading pipe is rotating, the striking component intermittently strikes the spreading pipe to make the spreading pipe vibrate, which prevents the spreading port at the bottom of the spreading pipe from being blocked.

[0015] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the slag cleaning device for steelmaking furnaces described in this utility model;

[0018] Figure 2 This is a front view of a slag cleaning device for a steelmaking furnace as described in this utility model;

[0019] Figure 3 This is a left view of a slag cleaning device for a steelmaking furnace as described in this utility model;

[0020] Figure 4 This is a top view of a slag cleaning device for a steelmaking furnace as described in this utility model;

[0021] Figure 5 This is a schematic diagram of the power component and the striking component of a slag cleaning device for a steelmaking furnace as described in this utility model.

[0022] The reference numerals in the attached drawings are explained as follows: 1. Base; 201. Mounting seat; 202. Mounting plate; 203. Hydraulic cylinder; 204. Steelmaking furnace; 301. Stepper motor; 302. Rotating shaft; 303. Horizontal plate; 304. Storage cylinder; 305. Spreading pipe; 401. Rotary motor; 402. Drive gear; 403. Driven gear; 501. Vertical plate; 502. Slide rod; 503. Striking hammer; 504. Spring; 505. Limiting plate; 506. Protrusion; 6. Protective box. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-5 As shown, a slag cleaning device for a steelmaking furnace includes a base 1. A steelmaking furnace 204 is connected to the top of the base 1 via an installation assembly. The installation assembly includes a mounting seat 201 fixedly connected to the top of the base 1. A mounting plate 202 is hinged to the top of the mounting seat 201. An installation groove is provided on the top of the mounting seat 201. A hydraulic cylinder 203 is hinged between the bottom of the mounting plate 202 and the installation groove. The steelmaking furnace 204 is fixedly connected to the top of the mounting plate 202. The hydraulic cylinder 203 drives the steelmaking furnace 204 to rotate at a certain angle, which facilitates the pouring out of the molten steel in the steelmaking furnace 204.

[0027] The top of the steelmaking furnace 204 is equipped with a material spreading mechanism, which includes a stepper motor 301 bolted to the top of the base 1. The output end of the stepper motor 301 is connected to a rotating shaft 302 via a coupling. A protective box 6 is fixedly connected to the top of the base 1. The stepper motor 301 is located inside the protective box 6. The rotating shaft 302 is rotatably connected to the protective box 6. A horizontal plate 303 is fixedly connected to the top of the rotating shaft 302. A storage cylinder 304 is fixedly connected to the top of the horizontal plate 303. The storage cylinder 304 stores slag removal agent. A feeding port is opened at the top of the storage cylinder 304. A sealing plug is threaded into the feeding port. A material spreading pipe 305 communicating with the storage cylinder 304 is rotatably connected to the bottom of the horizontal plate 303. The material spreading pipe 305 is L-shaped and has several material spreading ports at the bottom. A control valve is installed inside the material spreading pipe 305.

[0028] The material spreading mechanism also includes a power assembly for driving the material spreading pipe 305 to rotate. The power assembly includes a rotary motor 401 bolted to the top of the horizontal plate 303. The output end of the rotary motor 401 is fixedly connected to a drive gear 402. The outer wall of the material spreading pipe 305 is fixedly connected to a driven gear 403. The driven gear 403 meshes with the drive gear 402. When the rotary motor 401 is started, the rotary motor 401 drives the drive gear 402 to rotate. The drive gear 402 meshes with the driven gear 403, thereby driving the driven gear 403 to drive the material spreading pipe 305 to rotate.

[0029] The material spreading mechanism also includes a striking component, which is used to strike the material spreading pipe 305 when it rotates. The striking component includes a vertical plate 501 fixedly connected to the bottom of the horizontal plate 303. A sliding rod 502 slides left and right inside the wall of the vertical plate 501. Both ends of the sliding rod 502 extend out of the vertical plate 501. A striking hammer 503 is fixedly connected to one end of the sliding rod 502 near the material spreading pipe 305. A limit plate 505 is fixedly connected to the other end of the sliding rod 502. A spring 504 is fixedly connected between the striking hammer 503 and the vertical plate 501. The spring 504 is wrapped around the outer circumference of the sliding rod 502. Several circumferentially arranged protrusions 506 are fixedly connected to the outer wall of the material spreading pipe 305. The striking hammer 503 is hemispherical, and the outer wall of the protrusions 506 is arc-shaped, which improves the stability of the striking hammer 503 and the protrusions 506 when they move relative to each other.

[0030] Working principle: When it is necessary to clean the slag on the surface of molten steel, open the furnace cover of steelmaking furnace 204, start the stepper motor 301, and the stepper motor 301 drives the rotating shaft 302 to rotate the horizontal plate 303 by 90 degrees, rotating the spreading pipe 305 above the steelmaking furnace 204. Open the control valve inside the spreading pipe 305, start the rotating motor 401, and the rotating motor 401 drives the drive gear 402 to rotate. The drive gear 402 meshes with the driven gear 403, thereby driving the driven gear 403 to drive the spreading pipe 305 to rotate, evenly spreading the slag removal agent on the surface of the molten steel, so that the slag can be better collected and the slag removal efficiency can be improved. At the same time as the spreading pipe 305 rotates, the spreading pipe 305 drives the protrusion 506. When the protrusion 506 comes into contact with the hammer 503, the protrusion 506 drives the hammer 503 to move away from the spreading pipe 305. After the protrusion 506 rotates, the hammer 503 moves quickly towards the spreading pipe 305 under the elastic force of the spring 504, and strikes the spreading pipe 305 to make it vibrate, so as to avoid the spreading port at the bottom of the spreading pipe 305 from being blocked. After sufficient slag removal agent is added, the control valve in the spreading pipe 305 is closed, and the stepper motor 301 is started. The stepper motor 301 drives the rotating shaft 302 to rotate the horizontal plate 303 backward by 90 degrees, opening the opening of the steelmaking furnace 204. Then, the slag that has gathered on the surface of the molten steel is scooped out by iron rods or iron shovels.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A slag cleaning device for a steelmaking furnace, comprising a base (1), wherein the top of the base (1) is connected to a steelmaking furnace (204) via an installation assembly, characterized in that: The top of the steelmaking furnace (204) is provided with a material spreading mechanism. The material spreading mechanism includes a stepper motor (301) fixedly connected to the top of the base (1). The output end of the stepper motor (301) is connected to a rotating shaft (302) through a coupling. A horizontal plate (303) is fixedly connected to the top of the rotating shaft (302). A storage cylinder (304) is fixedly connected to the top of the horizontal plate (303). A material spreading pipe (305) communicating with the storage cylinder (304) is rotatably connected to the bottom of the horizontal plate (303). The material spreading pipe (305) is L-shaped. Several material spreading ports are opened at the bottom of the material spreading pipe (305). A control valve is provided inside the material spreading pipe (305). The material spreading mechanism also includes a power component and a striking component. The power component is used to drive the material spreading pipe (305) to rotate. The striking component is used to strike the material spreading pipe (305) when it rotates.

2. The slag cleaning device for a steelmaking furnace according to claim 1, characterized in that: The power assembly includes a rotary motor (401) fixedly connected to the top of the horizontal plate (303), a drive gear (402) fixedly connected to the output end of the rotary motor (401), and a driven gear (403) fixedly connected to the outer wall of the spreading pipe (305), the driven gear (403) meshing with the drive gear (402).

3. The slag cleaning device for a steelmaking furnace according to claim 1, characterized in that: The striking assembly includes a vertical plate (501) fixedly connected to the bottom of the horizontal plate (303). A sliding rod (502) slides left and right inside the wall of the vertical plate (501). Both ends of the sliding rod (502) extend out of the vertical plate (501). A striking hammer (503) is fixedly connected to one end of the sliding rod (502) near the material spreading pipe (305). A limiting plate (505) is fixedly connected to the other end of the sliding rod (502). A spring (504) is fixedly connected between the striking hammer (503) and the vertical plate (501). The spring (504) is wrapped around the outer periphery of the sliding rod (502). Several circumferentially arranged protrusions (506) are fixedly connected to the outer wall of the material spreading pipe (305).

4. The slag cleaning device for a steelmaking furnace according to claim 3, characterized in that: The hammer (503) is hemispherical, and the outer wall of the protrusion (506) is arc-shaped.

5. The slag cleaning device for a steelmaking furnace according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a protective box (6), the stepper motor (301) is located inside the protective box (6), and the rotating shaft (302) is rotatably connected to the protective box (6).

6. The slag cleaning device for a steelmaking furnace according to claim 1, characterized in that: The mounting assembly includes a mounting base (201) fixedly connected to the top of the base (1), a mounting plate (202) hinged to the top of the mounting base (201), a mounting groove being provided on the top of the mounting base (201), a hydraulic cylinder (203) hinged between the bottom of the mounting plate (202) and the mounting groove, and the steelmaking furnace (204) fixedly connected to the top of the mounting plate (202).

7. The slag cleaning device for a steelmaking furnace according to claim 1, characterized in that: The top of the storage cylinder (304) is provided with a feeding port, and a sealing plug is threaded into the feeding port.

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