Main channel iron falling point impact area structure

Abstract

The utility model relates to the technical field of impact area structures, in particular to a main channel iron falling point impact area structure which comprises an impact block, a groove is formed in the impact block, two anti-surge blocks symmetrically arranged above the groove are fixedly connected to the impact block, and an opening is formed between the two anti-surge blocks. The anti-gushing block has the advantages that in actual use, the impact block is laid at an iron falling point of the main iron runner, molten iron enters the groove through the opening between the anti-gushing blocks when poured out, and when the molten iron gushes, the anti-gushing blocks prevent the molten iron from gushing out of the impact block, so that abrasion to the main iron runner caused by gushing of the molten iron is avoided, and the service life of the main iron runner is prolonged. And the service life of the main iron runner is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of impact zone structures, in particular to an impact zone structure of a main groove iron drop point. Background Art

[0002] During the blast furnace smelting process, the main iron ditch is an important facility for receiving the molten iron and slag flowing out of the blast furnace tapping hole. Its performance stability and service life are directly related to the continuity and safety of blast furnace production. The main function of the main iron ditch is to separate the liquid slag and iron to ensure the smooth tapping process of the blast furnace.

[0003] However, during the operation of the main iron ditch, the iron drop point area is the area that is most severely subjected to the impact of molten iron and the stirring of slag iron. The refractory in this area is in direct contact with the slag iron, and the bottom of the ditch is directly subjected to the strong impact of the molten iron pouring out from the iron mouth. At the same time, the slag iron rolls and stirs to both sides of the ditch under the impact of the molten iron, causing the ditch lining refractory to be damaged and thinned due to physical scouring, thereby greatly reducing the service life of the refractory in the iron drop point area.

[0004] Specifically, the molten iron spurts out of the molten iron outlet quickly with the slag. When the slag hits the bottom of the ditch, the slag at the bottom of the ditch surges upward, forming a violent stirring. The slag ejected from the iron outlet continuously rushes down to the bottom of the ditch, and the front and rear slags continuously impact, making the stirring of the slag at the bottom of the ditch more intense. This violent stirring is not only not conducive to the rapid separation of slag, but also aggravates the damage to the refractory material of the ditch lining and shortens the service life of the main iron ditch.

[0005] In addition, due to the continuous and intermittent production rhythm of the blast furnace tapping channel, the lining refractory of the main tapping channel is seriously eroded and thinned, resulting in an increase in the frequency of main tapping channel maintenance. This not only increases the labor intensity of workers, but also increases the consumption of refractory per ton of iron, affecting the normal production rhythm of the blast furnace to a certain extent.

[0006] Therefore, a main groove iron-falling point impact zone structure is needed to overcome the occurrence of the above-mentioned problems. Utility Model Content

[0007] In order to solve the above problems, an embodiment of the utility model provides a main groove iron-falling point impact zone structure, 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 main groove iron drop point impact zone structure, including an impact block, a groove is opened inside the impact block, two surge-proof blocks symmetrically arranged above the groove are fixedly connected to the impact block, and an opening is arranged between the two surge-proof blocks.

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

[0010] The bottom of the groove is one of a flat surface, a conical surface and a curved surface.

[0011] A notch is provided on the side of the impact block.

[0012] Both sides of the top of the impact block are fixedly connected with protrusions.

[0013] A card slot 1 is provided on one side of the impact block, and a card block 1 is fixedly connected to the same side of the impact block;

[0014] A second clamping groove corresponding to the first position of the clamping block is provided on the other side of the impact block, and a second clamping block corresponding to the first position of the clamping groove is fixedly connected to the same side of the impact block.

[0015] The beneficial effects of the embodiments of the utility model are:

[0016] In actual use, the impact block is laid at the iron falling point of the main iron groove. When the molten iron is poured out, it enters the groove through the opening between the anti-surge blocks. When the molten iron surges, the anti-surge blocks prevent the molten iron from surging out of the impact block, thereby avoiding wear on the main iron groove due to the surge of molten iron and extending the service life of the main iron groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0018] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;

[0019] Figure 3 It is a cross-sectional schematic diagram of the utility model.

[0020] In the figure: 1, impact block; 2, groove; 3, surge block; 4, opening; 5, notch; 6, protrusion; 7, slot one; 8, block one; 9, block two; 10, slot two. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figures 1 to 3 The utility model embodiment discloses a main groove iron drop point impact zone structure, including an impact block 1, a groove 2 is provided inside the impact block 1, two surge prevention blocks 3 symmetrically arranged above the groove 2 are fixedly connected to the impact block 1, and an opening 4 is provided between the two surge prevention blocks 3; the impact block 1 and the surge prevention block 33 are integrally formed;

[0023] In actual use, the impact block 1 is laid at the iron drop point of the main iron groove. When the molten iron is poured out, it enters the groove 2 through the opening 4 between the anti-surge blocks 3. When the molten iron surges, the anti-surge block 3 prevents the molten iron from surging out of the impact block 1, thereby avoiding wear on the main iron groove due to the surge of molten iron and extending the service life of the main iron groove.

[0024] As a further illustration of this application:

[0025] The bottom of the groove 2 is one of a plane, a cone, and an arc surface. When a cone or an arc surface is adopted, the falling molten iron can flow down smoothly, thereby slowing down the surging of the molten iron.

[0026] As a further illustration of this application:

[0027] A notch 5 is provided on the side of the impact block 1. When the impact block 1 is laid in the main iron groove, castable material needs to be filled between the impact block 1 and the main iron groove. By providing the notch 5, the contact area between the impact block 1 and the castable material can be increased, thereby making the connection tighter.

[0028] As a further illustration of this application:

[0029] Both sides of the top of the impact block 1 are fixedly connected with protrusions 6, which increase the contact area between the impact block 1 and the castable material. At the same time, the protrusions 6 apply a certain pressure to the castable material, so that the castable material is cast tightly.

[0030] As a further illustration of this application:

[0031] A card slot 7 is provided on one side of the impact block 1, and a card block 8 is fixedly connected to the same side of the impact block 1;

[0032] A second card slot 10 corresponding to the position of the card slot 8 is provided on the other side of the impact block 1, and a second card slot 9 corresponding to the position of the card slot 7 is fixedly connected to the same side of the impact block 1;

[0033] The iron drop point of the main groove will change with the change of the amount of molten iron in the blast furnace and the pressure in the furnace. The iron drop point is actually a straight line area with a span of 2-3 meters. Therefore, the impact block 1 is a longitudinal structure laid in this area along the iron discharge direction, that is, multiple impact blocks 1 need to be spliced ​​together. When splicing, the card block 2 9 on the impact block 1 is inserted into the card slot 1 7 of the adjacent impact block 1, and its card slot 2 10 is inserted into the card block 1 8 of the adjacent impact block 1; thereby enhancing the splicing stability between the impact blocks 1;

[0034] By providing the axially symmetrical clamping groove 1 7 and the axially symmetrical clamping block 1 8 and the axially symmetrical clamping block 2 9 , it is not necessary to distinguish the positive and negative directions of the impact block 1 when laying the impact block 1 .

[0035] As a further illustration of this application:

[0036] One side of the top of the surge prevention block 3 is rounded, so as to facilitate the molten iron to enter the groove 2 through the opening 4.

[0037] 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 limiting 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.

[0038] 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.

[0039] 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.

[0040] 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 main groove iron point impact zone structure, characterized in that: The invention comprises an impact block (1), wherein a groove (2) is provided inside the impact block (1), two surge prevention blocks (3) symmetrically arranged above the groove (2) are fixedly connected to the impact block (1), and an opening (4) is arranged between the two surge prevention blocks (3).

2. The main groove iron-falling point impact zone structure according to claim 1 is characterized in that: The bottom of the groove (2) is one of a flat surface, a conical surface and a curved surface.

3. The main groove iron-falling point impact zone structure according to claim 1 is characterized in that: A notch (5) is provided on the side of the impact block (1).

4. The main groove iron drop point impact zone structure according to claim 1, characterized in that: Protrusions (6) are fixedly connected to both sides of the top of the impact block (1).

5. The main groove iron-falling point impact zone structure according to claim 1, characterized in that: A first card slot (7) is provided on one side of the impact block (1), and a first card slot (8) is fixedly connected to the same side of the impact block (1); a second card slot (10) corresponding to the position of the first card slot (8) is provided on the other side of the impact block (1), and a second card slot (9) corresponding to the position of the first card slot (7) is fixedly connected to the same side of the impact block (1).

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