Iron falling point structure of main iron runner

Abstract

The utility model relates to the technical field of main iron runners, in particular to an iron falling point structure of a main iron runner, which comprises a structure main body, a launder is arranged in the structure main body, a step-shaped impact part is arranged at the bottom of the launder, and a scouring part matched with a slag line area of the main iron runner in height is arranged on the side of the launder. The impact part is composed of two first prefabricated parts, and the two first prefabricated parts are arranged in a step shape. The launder has the advantages that in actual use, impact of molten iron on the bottom of the launder is borne through the impact portion, scouring of a slag line area on the side portion of the launder is borne through the scouring portion, the impact portion and the scouring portion have good abrasion resistance, and therefore abrasion of the molten iron on the launder is relieved; according to the two first prefabricated parts arranged in the step shape, one of the first prefabricated parts is high, namely the height difference between the first prefabricated part and the blast furnace tap hole is small, and therefore impact force generated when molten iron is poured is reduced, and abrasion is relieved.

Description

Technical Field

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

[0002] The main iron ditch is used to carry the molten iron and slag flowing out of the blast furnace tap hole, and serves the purpose of separating the slag and iron. The iron drop point of the main iron ditch is the area that is most severely subjected to the impact of the molten iron and the stirring of the slag and iron. The refractory in this area is in direct contact with the slag and iron, and the bottom of the ditch directly bears the impact of the molten iron pouring out of the tap hole, thereby reducing the service life of the refractory in the iron drop point area. The service life of the main iron ditch iron drop point directly affects the service life of the main iron ditch.

[0003] In actual operation, the wear position of the iron drop point is mainly concentrated at the bottom of the flow channel and the side of the flow channel with the same height as the slag line area. This is because when pouring slag iron water, the slag iron water directly impacts the bottom of the flow channel, causing wear on the bottom of the flow channel. At the same time, the iron slag is located at the top of the slag iron water, forming a slag line area, which causes greater wear on the side of the flow channel when flowing.

[0004] At the same time, when pouring slag and molten iron, the height difference between the blast furnace taphole and the launder will also affect the wear of the bottom of the launder. The greater the height difference between the blast furnace taphole and the launder, the greater the impact force of the molten iron on the bottom of the launder, thereby exacerbating the wear of the molten iron on the bottom of the launder.

[0005] Therefore, a main iron groove iron drop point structure is needed to overcome the occurrence of the above-mentioned problems. Utility Model Content

[0006] In order to solve the above problems, the embodiment of the utility model provides a main iron groove iron drop point structure, which achieves the purpose of solving the problems raised in the background technology.

[0007] In order to achieve the above-mentioned purpose, the embodiment of the utility model specifically adopts the following technical scheme: a main iron groove iron drop point structure, including a structural body, a flow groove is opened inside the structural body, a stepped impact part is arranged at the bottom of the flow groove, and a flushing part with a height matching the slag line area of ​​the main iron groove is arranged on the side of the flow groove; the impact part is composed of two prefabricated parts, and the two prefabricated parts are arranged in a stepped shape.

[0008] As a further improvement of the above technical solution:

[0009] The flushing part includes a second prefabricated part fixed inside the structural main body and a third prefabricated part arranged on one side of the second prefabricated part.

[0010] A slot is provided inside the second preform, and a clamping block used in conjunction with the slot is fixedly connected to one side of the third preform.

[0011] A second groove is formed on the side of the second prefabricated component.

[0012] A groove one is formed on the side of the prefabricated component one.

[0013] A chute is provided on one side of the prefabricated component.

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

[0015] In actual use, the impact of molten iron on the bottom of the flow channel is borne by the impact part, and the scouring part is used to withstand the scouring of the slag line area on the side of the flow channel. The impact part and the scouring part have good wear resistance, thereby reducing the wear of the flow channel by the molten iron; the two prefabricated parts are arranged in a stepped shape, and the height of one of the prefabricated parts is higher, that is, the height difference between it and the blast furnace tapping port is smaller, thereby reducing the impact force when the molten iron is poured and reducing wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional schematic diagram of the utility model from a first viewing angle;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model from a second viewing angle;

[0018] Figure 3 It is a cross-sectional schematic diagram of the flushing part of the utility model.

[0019] In the figure: 1, structural body; 2, flow channel; 3, impact part; 31, prefabricated part 1; 4, scouring part; 41, prefabricated part 2; 42, prefabricated part 3; 43, clamping groove; 44, clamping block; 5, groove 2; 6, groove 1; 7, inclined groove. 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 Figures 1 to 3 The utility model discloses a main iron groove iron drop point structure, including a structure body 1, a flow groove 2 is provided inside the structure body 1, a stepped impact part 3 is provided at the bottom of the flow groove 2, and a scouring part 4 with a height matching the slag line area of ​​the main iron groove is provided on the side of the flow groove 2;

[0022] The main structure 1 is formed by casting a casting material, and the impact part 3 and the scouring part 4 are both high-density prefabricated structures, and the impact part 3 and the scouring part 4 have good wear resistance;

[0023] The impact part 3 is composed of two preformed parts 31, and the two preformed parts 31 are arranged in a stepped shape;

[0024] In actual use, the impact of molten iron on the bottom of the flow channel 2 is borne by the impact part 3, and the scouring part 4 is used to withstand the scouring of the slag line area on the side of the flow channel 2. The impact part 3 and the scouring part 4 have good wear resistance, thereby reducing the wear of the flow channel 2 by the molten iron; two prefabricated parts 31 are arranged in a stepped shape, and the height of one of the prefabricated parts 31 is higher, that is, the height difference between it and the blast furnace tapping port is smaller, thereby reducing the impact force when the molten iron is poured and reducing wear.

[0025] As a further illustration of this application:

[0026] The flushing portion 4 includes a prefabricated part 2 41 fixed inside the structural body 1 and a prefabricated part 3 42 arranged on one side of the prefabricated part 2 41; the prefabricated part 2 41 is fixed inside the structural body 1, and the prefabricated part 3 42 is detachably mounted on the prefabricated part 2 41. When in use, the slag line area mainly flushes the prefabricated part 3 42. When the prefabricated part 3 42 is severely worn, the prefabricated part 3 42 can be replaced, and there is no need to replace and maintain the flushing portion 4 as a whole, which is convenient for actual use.

[0027] As a further illustration of this application:

[0028] A slot 43 is provided inside the second preform 41, and a block 44 for use with the slot 43 is fixedly connected to one side of the third preform 42; the block 44 is snapped into the inside of the slot 43, and the third preform 42 is fixed inside the second preform 41 through the cooperation between the block 44 and the slot 43.

[0029] As a further illustration of this application:

[0030] A second groove 5 is provided on the side of the second prefabricated part 41 to improve the contact surface between the second prefabricated part 41 and the structural main body 1 , thereby improving the stability of the second prefabricated part 41 being cast and fixed inside the structural main body 1 .

[0031] As a further illustration of this application:

[0032] A groove 6 is provided on the side of the prefabricated part 31 to improve the contact surface between the prefabricated part 31 and the structural main body 1, thereby improving the stability of the prefabricated part 31 being cast and fixed inside the structural main body 1.

[0033] As a further illustration of this application:

[0034] A chute 7 is provided on one side of the preform 31, so that the molten iron flows down from the preform 31 through the chute 7, making the flow of the molten iron more stable.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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 iron ditch iron drop point structure, comprising a structural body (1), wherein a flow channel (2) is provided inside the structural body (1), characterized in that: The bottom of the flow channel (2) is provided with a stepped impact portion (3), and the side of the flow channel (2) is provided with a flushing portion (4) with a height matching the slag line area of ​​the main iron groove; The impact portion (3) is composed of two preformed parts (31), and the two preformed parts (31) are arranged in a stepped shape.

2. The main iron groove iron drop point structure according to claim 1, characterized in that: The flushing part (4) comprises a second prefabricated part (41) fixed inside the structural body (1) and a third prefabricated part (42) arranged on one side of the second prefabricated part (41).

3. The main iron groove iron drop point structure according to claim 2, characterized in that: A clamping groove (43) is provided inside the second preform (41), and a clamping block (44) used in conjunction with the clamping groove (43) is fixedly connected to one side of the third preform (42).

4. The main iron groove iron drop point structure according to claim 2, characterized in that: The side of the second preform (41) is provided with a second groove (5).

5. The main iron groove iron drop point structure according to claim 1, characterized in that: A groove (6) is formed on the side of the preform (31).

6. The main iron groove iron drop point structure according to claim 1, characterized in that: A chute (7) is provided on one side of the preform one (31).

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