Molten iron swing nozzle

Abstract

The utility model relates to a molten iron swing flow nozzle, including steel shell and refractory castable layer on the steel shell of pouring, its characterized in that: still be provided with the steel structure of welding on the steel shell in refractory castable layer.

Description

Technical Field

[0001] This utility model relates to the field of refractory materials used in the continuous casting process of blast furnace ironmaking, and more specifically to a molten iron oscillating nozzle. Background Technology

[0002] A molten iron oscillating nozzle typically consists of a steel shell and a refractory castable layer poured onto the steel shell. Because the oscillating nozzle is exposed to high temperatures for a long time, the steel shell is prone to deformation, which can lead to cracking of the refractory castable layer during use. This affects the service life of the molten iron oscillating nozzle and causes a significant increase in continuous casting production costs.

[0003] How to solve the technical defect of cracking in the refractory castable layer of the oscillating nozzle during use has become a major issue in the industry. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a molten iron swing nozzle. The technical solution adopted is: a molten iron swing nozzle, including a steel shell and a refractory castable layer cast on the steel shell, characterized in that: a steel structure welded to the steel shell is also provided in the refractory castable layer.

[0005] A further technical feature of this utility model is: The steel structure includes two layers of winged U-shaped steel mesh, wherein the wing ends of the first layer of U-shaped steel mesh are welded to the steel shell, and the wing ends of the second layer of U-shaped steel mesh are welded to the first layer of U-shaped steel mesh.

[0006] A reinforcing mesh is welded between the first layer of U-shaped steel mesh and the second layer of U-shaped steel mesh.

[0007] The two layers of winged U-shaped steel mesh and the reinforcing rib mesh are both made of threaded steel.

[0008] Because this invention also includes a steel structure welded to the steel shell within the refractory castable layer, it perfectly solves the problem of cracking in the refractory castable layer of the molten iron swing nozzle during use, thereby improving the service life of the molten iron swing nozzle. Attached Figure Description

[0009] Figure 1 This is a structural cross-sectional view according to a specific embodiment of the present utility model; Figure 2 yes Figure 1 A three-dimensional view of the steel structure. Detailed Implementation

[0010] The present invention will now be described in further detail with reference to the accompanying drawings.

[0011] Reference Figures 1 to 2A molten iron oscillating nozzle includes a steel shell 1 and a refractory castable layer 2 cast on the steel shell, characterized in that: a steel structure 3 welded to the steel shell 1 is further provided inside the refractory castable layer 2.

[0012] In this embodiment, the steel structure includes two layers of U-shaped steel mesh with wings 303, wherein the ends of the wings 303 of the first layer of U-shaped steel mesh 301 are welded to the steel shell 1, and the ends of the wings 303 of the second layer of U-shaped steel mesh 302 are welded to the first layer of U-shaped steel mesh 301.

[0013] A reinforcing mesh 304 is welded between the first layer of U-shaped steel mesh 301 and the second layer of U-shaped steel mesh 302. In this embodiment, the reinforcing mesh 304 is also provided in two layers. The reinforcing bars used in the two layers of U-shaped steel mesh with wings 303 and the two layers of reinforcing mesh 304 are all threaded steel bars.

[0014] Because the present invention also provides a steel structure 3 welded to the steel shell 1 inside the refractory castable layer 2, the defect of cracking of the refractory castable layer 2 of the molten iron swing nozzle during use is perfectly solved, and the service life of the molten iron swing nozzle is improved.

[0015] The technical content and features of this utility model have been disclosed above. However, it is understood that, under the inventive concept of this utility model, those skilled in the art can make various changes and improvements to the above structure, including combinations of the technical features disclosed or claimed herein, as well as other combinations that explicitly include these features. All such modifications and / or combinations fall within the technical field to which this utility model pertains and are within the protection scope of the claims of this utility model.

Claims

1. A molten iron oscillating spout, comprising a steel shell and a refractory castable layer poured onto the steel shell, characterized in that: The refractory castable layer also contains a steel structure welded to the steel shell.

2. The molten iron oscillating nozzle as described in claim 1, characterized in that: The steel structure includes two layers of winged U-shaped steel mesh, wherein the wing ends of the first layer of U-shaped steel mesh are welded to the steel shell, and the wing ends of the second layer of U-shaped steel mesh are welded to the first layer of U-shaped steel mesh.

3. The molten iron oscillating nozzle as described in claim 2, characterized in that: A reinforcing mesh is welded between the first layer of U-shaped steel mesh and the second layer of U-shaped steel mesh.

4. The molten iron oscillating nozzle as described in claim 3, characterized in that: The two layers of winged U-shaped steel mesh and the reinforcing rib mesh are both made of threaded steel.

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