Swing channel current stabilizer structure of blast furnace casting house

Abstract

The utility model relates to the technical field of current stabilizer structures, in particular to a blast furnace casting house swing channel current stabilizer structure which comprises a current stabilizer body arranged in a swing channel, and an urn-shaped groove with the diameter gradually reduced from bottom to top is formed in the current stabilizer body. A flow channel is formed in the flow stabilizer body, one end of the flow channel is located at the bottom of the urn-shaped groove, and the other end of the flow channel is located on the side portion of the flow stabilizer body. The utility model has the beneficial effects that: in actual use, molten iron is poured into the urn-shaped groove, so that a certain amount of molten iron is stored in the urn-shaped groove, thereby reducing the impact of the molten iron flowing out of the branch channel of the casting house on the swinging channel, playing a role in flow stabilization, and relieving the scouring of the molten iron on the bottom and the channel side of the swinging channel.

Description

Technical Field

[0001] The utility model relates to the technical field of flow stabilizer structures, in particular to a swing groove flow stabilizer structure for a blast furnace casting yard. Background Art

[0002] With the continuous progress of blast furnace ironmaking technology and the trend of large-scale development, the design of blast furnace iron-making yards is also being optimized. Among them, the swing ditch is an important part of the blast furnace iron-making system, and its design rationality is directly related to the efficiency and safety of blast furnace iron-making. However, the traditional swing ditch design faces many challenges when dealing with large-scale blast furnace iron-making.

[0003] First, when the molten iron flowing out of the branch ditch flows through the swing ditch, due to a certain drop, the molten iron has a great impact on the bottom and side of the swing ditch. This strong impact not only accelerates the wear of the swing ditch, but also may cause deformation and damage to the swing ditch, thereby shortening the service life of the swing ditch.

[0004] Secondly, the swing groove currently mostly uses traditional Al2O3-SiC-C castables. Although SiC-C material has good corrosion resistance and permeability resistance, it is easy to oxidize and has low strength. Especially in high-temperature oxidation environment, its anti-scouring strength will drop significantly. This further aggravates the damage speed of the swing groove, increases the maintenance frequency and the consumption of refractory materials.

[0005] In response to the above problems, industry professionals have been constantly exploring and innovating. They try to improve the formula and preparation process of iron groove refractory materials to increase the service life of the swing groove. However, due to the performance limitations of Al2O3-SiC-C refractory materials, it is currently impossible to significantly increase the service life of the swing groove.

[0006] In order to increase the service life of the swing groove, the present application improves the structure of the impact zone of the swing groove. By introducing the flow stabilizer structure, we can effectively reduce the impact force of molten iron on the bottom and sides of the swing groove, thereby extending the service life of the swing groove. The design principle of the flow stabilizer structure is to convert the impact force of the molten iron into a smaller and more uniform force through its internal buffering and dispersion effect, thereby reducing damage to the swing groove. Utility Model Content

[0007] In order to solve the above problems, an embodiment of the utility model provides a swing groove current stabilizer structure for a blast furnace iron-making yard, which achieves the purpose of solving the problems raised in the background technology.

[0008] In order to achieve the above-mentioned purpose, the embodiment of the utility model specifically adopts the following technical scheme: a swing groove flow stabilizer structure for a blast furnace iron-making yard, comprising a flow stabilizer body arranged inside the swing groove, an urn-shaped groove with a diameter gradually decreasing from bottom to top is opened inside the flow stabilizer body; a flow channel is opened inside the flow stabilizer body, one end of the flow channel is located at the bottom of the urn-shaped groove, and the other end of the flow channel is located at the side of the flow stabilizer body.

[0009] As a further improvement of the above technical solution:

[0010] There are a plurality of flow channels, and a circular array of the plurality of flow channels is arranged inside the flow stabilizer body.

[0011] A groove is formed on the portion of the flow stabilizer body located inside the swing groove.

[0012] The side of the flow stabilizer body is fixedly connected with an impact plate located at the bottom of the swing groove.

[0013] One end of the flow channel located at the side of the flow stabilizer body is arranged above the impact plate.

[0014] The beneficial effects of the embodiments of the utility model are:

[0015] In actual use, the molten iron is poured into the urn-shaped trough, so that a certain amount of molten iron is stored inside the urn-shaped trough, thereby reducing the impact of the molten iron flowing out of the branch ditch of the iron-making yard on the swing ditch, playing a role in stabilizing the flow and alleviating the erosion of the bottom and side of the swing ditch by the molten iron;

[0016] At the same time, a part of the molten iron inside the urn-shaped trough is discharged into the swing groove through the flow channel, so that a certain amount of molten iron is stored inside the swing groove, thereby alleviating the impact of the molten iron overflowing from the urn-shaped trough on the swing groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the main body of the current stabilizer of the utility model.

[0019] In the figure: 1. flow stabilizer body; 2. swing groove; 3. urn-shaped groove; 4. flow channel; 5. groove; 6. impact plate. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0021] See also Figure 1 to Figure 2The utility model embodiment discloses a blast furnace iron-casting field swing groove flow stabilizer structure, comprising a flow stabilizer body 1 arranged inside a swing groove 2, and an urn-shaped groove 3 with a diameter gradually reduced from bottom to top is opened inside the flow stabilizer body 1;

[0022] A flow channel 4 is provided inside the flow stabilizer body 1, one end of the flow channel 4 is located at the bottom of the urn-shaped groove 3, and the other end of the flow channel 4 is located at the side of the flow stabilizer body 1;

[0023] In actual use, the molten iron is poured into the urn-shaped groove 3, so that a certain amount of molten iron is stored inside the urn-shaped groove 3, thereby reducing the impact of the molten iron flowing out of the branch groove of the iron-making yard on the swing groove 2, playing a role in stabilizing the flow, and alleviating the erosion of the bottom and side of the swing groove by the molten iron;

[0024] At the same time, a part of the molten iron inside the urn-shaped groove 3 is discharged into the swing groove 2 through the flow channel 4, so that a certain amount of molten iron is stored inside the swing groove 2, thereby alleviating the impact of the molten iron overflowing from the urn-shaped groove 3 on the swing groove 2.

[0025] As a further illustration of this application:

[0026] There are multiple flow channels 4, which are arranged in a circumferential array inside the stabilizer body 1 to increase the outflow speed of the molten iron in the flow channel 4, so that a certain amount of molten iron can be quickly stored at the bottom of the swing groove 2.

[0027] As a further illustration of this application:

[0028] A groove 5 is provided on the portion of the stabilizer body 1 located inside the swing groove 2. The swing groove 2 is made by casting. During casting, the stabilizer body 1 is placed inside the swing groove 2 for casting. The groove 5 is used to enhance the connection stability between the stabilizer body 1 and the swing groove 2.

[0029] As a further illustration of this application:

[0030] The side of the flow stabilizer body 1 is fixedly connected with an impact plate 6 located at the bottom of the swing groove 2. When pouring molten iron, the molten iron overflowing from the urn-shaped groove 3 falls on the impact plate 6, thereby preventing the molten iron overflowing from the urn-shaped groove 3 from directly falling on the swing groove 2 and causing impact wear on the swing groove 2.

[0031] As a further illustration of this application:

[0032] One end of the flow channel 4 located at the side of the stabilizer body 1 is arranged above the impact plate 6, so that the molten iron flowing out of the flow channel 4 impacts the impact plate 6, avoiding impact wear on the swing groove 2.

[0033] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0035] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0036] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A swing groove current stabilizer structure for a blast furnace iron-making site, characterized in that: It comprises a flow stabilizer body (1) arranged inside a swing groove (2), wherein the flow stabilizer body (1) is provided with an urn-shaped groove (3) whose diameter gradually decreases from bottom to top; A flow channel (4) is provided inside the flow stabilizer body (1), one end of the flow channel (4) is located at the bottom of the urn-shaped groove (3), and the other end of the flow channel (4) is located at the side of the flow stabilizer body (1).

2. The swing groove current stabilizer structure of the blast furnace iron-making field according to claim 1 is characterized in that: A plurality of flow channels (4) are provided, and the plurality of flow channels (4) are arranged in a circular array inside the flow stabilizer body (1).

3. The swing groove current stabilizer structure of the blast furnace iron-making field according to claim 1 is characterized in that: A groove (5) is provided on the portion of the flow stabilizer body (1) located inside the swing groove (2).

4. The swing groove current stabilizer structure of the blast furnace iron-making site according to claim 1 is characterized in that: An impact plate (6) located at the bottom of the swing groove (2) is fixedly connected to the side of the flow stabilizer body (1).

5. The swing groove current stabilizer structure of the blast furnace iron-making site according to claim 1, characterized in that: One end of the flow channel (4) located on the side of the flow stabilizer body (1) is arranged above the impact plate (6).

Images