Submersed nozzle capable of positioning slag line position

Abstract

The utility model discloses a submerged nozzle capable of positioning a slag line position, which comprises a nozzle body (1) and a slag line area (2), and is characterized in that a scale area (3) is arranged on the slag line area (2); the scale area (3) capable of accurately checking the slag line position is completely positioned in the slag line area (2), and the scale lines of the scale area (3) are drawn by adopting a high-temperature-resistant coating capable of bearing the high temperature of 500 DEG C or above. According to the submerged nozzle, the scale marks are drawn on the surface of the slag line area through the striking high-temperature-resistant coating to serve as the scale area, so that an operator in a steel mill can accurately and visually see the position of the slag line on the submerged nozzle, the operator in the steel mill can adjust the slag line in time, and the submerged nozzle has the advantages of being convenient to use and accurate in adjustment. The method is suitable for popularization.

Description

Technical Field

[0001] This utility model relates to the field of continuous casting technology, and in particular to an immersion nozzle, specifically an immersion nozzle capable of locating the slag line. Background Technology

[0002] During use in steel mills, refractory pipes are severely corroded by the protective slag from molten steel. Therefore, slag line material must be added during the manufacturing process. Furthermore, steel mills cannot fix the position of the refractory pipes during use, which would cause corrosion to occur in the same spot. Therefore, the height of the refractory pipes must be continuously adjusted to ensure more even corrosion distribution along the slag line material, thereby improving the product's service life.

[0003] However, since the lower end of the refractory pipe is inserted into the molten steel during use, the position of the slag line material cannot be seen on the refractory pipe, making it difficult to adjust the height of the refractory pipe in a timely manner. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the prior art by providing an immersion nozzle that can locate the position of the slag line and whose operating height can be adjusted in a timely manner.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] An immersion nozzle capable of locating the slag line position includes a nozzle body and a slag line area, characterized in that: a scale area is arranged on the slag line area, all scale areas that can accurately view the slag line position are located within the slag line area, and the scale lines of the scale area are drawn with a high-temperature resistant paint that can withstand temperatures above 500℃.

[0007] The scale lines in the scale area are green or yellow.

[0008] The distance between adjacent scale lines on the scale area is 0.5cm to 2.0cm.

[0009] The height of the scale area is 1 / 3 to 2 / 3 of the height of the slag line area.

[0010] The distance between the lower edge of the scale area and the lower edge of the slag line area is less than the distance between the upper edge of the scale area and the upper edge of the slag line area.

[0011] The distance between the lower edge of the scale area and the lower edge of the slag line area is 13.52% to 25.35% of the height of the slag line area.

[0012] The distance between the upper edge of the scale area and the upper edge of the slag line area is 27.65% to 42.78% of the height of the slag line area.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] This utility model's submersible nozzle uses a high-temperature resistant coating to draw scale lines on the surface of the slag line area, allowing steel plant operators to accurately and intuitively see the slag line position on the submersible nozzle. This enables steel plant operators to adjust the slag line in a timely manner. It is convenient to use and accurate in adjustment, making it suitable for widespread application. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the submersible nozzle that can locate the slag line position, as provided by this utility model.

[0016] Wherein: 1—the main body of the water inlet; 2—the slag line area; 3—the scale area. Detailed Implementation

[0017] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0018] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended meaning of inclusion and that other elements / components / etc. may exist in addition to the listed elements / components / etc.

[0019] like Figure 1 As shown: An immersion nozzle capable of locating the slag line position includes a nozzle body 1 and a slag line area 2. A scale area 3 is arranged on the slag line area 2. The scale area 3, which can accurately view the slag line position, is entirely located within the slag line area 2. The scale lines of the scale area 3 are drawn with a high-temperature resistant paint that can withstand temperatures above 500℃. The color of the chromium-containing high-temperature resistant paint is preferably a striking green or yellow (the outer surface of the slag line area 2 is white).

[0020] To facilitate operators in adjusting the insertion height of the submerged nozzle into the molten steel, it is necessary to control the spacing between the scale lines. The adjustment interval should not be too short, which would result in insufficient erosion of the slag line material, nor too long, which would result in excessive erosion of the slag line material and affect the overall performance of the submerged nozzle. Therefore, it is more appropriate to set the distance between adjacent scale lines on scale area 3 to be 0.5cm to 2.0cm.

[0021] Furthermore, the height of scale area 3 should not be too high; a moderate height is preferable. Therefore, the height of scale area 3 is set to 1 / 3 to 2 / 3 of the height of slag line area 2, and the distance between the lower edge of scale area 3 and the lower edge of slag line area 2 is less than the distance between the upper edge of scale area 3 and the upper edge of slag line area 2. Specifically, the distance between the lower edge of scale area 3 and the lower edge of slag line area 2 is 13.52% to 25.35% of the height of slag line area 2, and the distance between the upper edge of scale area 3 and the upper edge of slag line area 2 is 27.65% to 42.78% of the height of slag line area 2.

[0022] In the embodiment provided by this utility model, the height of the scale area 3 is set to 43.62% to 58.36% of the height of the slag line area 2, and the distance between the lower edge of the scale area 3 and the lower edge of the slag line area 2 is 18.16% to 21.37% of the height of the slag line area 2, and the distance between the upper edge of the scale area 3 and the upper edge of the slag line area 2 is 30.18% to 35.24% of the height of the slag line area 2.

[0023] The submersible nozzle provided by this utility model enables steel plants to accurately and intuitively adjust the slag line position during use. During the manufacturing process of the submersible nozzle, a scale line is drawn on the surface of the slag line area 2 of the submersible nozzle using a conspicuous high-temperature resistant coating as a scale area 3. The scale line of the scale area 3 is within the range of the slag line area 2. When the conspicuous scale line is eroded and cannot be seen, it reminds the steel plant operators to adjust the slag line. It is convenient to use and accurate in adjustment, making it suitable for widespread use.

[0024] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0025] In the description of the embodiments of this utility model, it should be understood that the terms "upper" and "lower" 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 the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0026] In this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model. Technologies not covered by this utility model can be implemented by existing technologies.

Claims

1. A submersible nozzle capable of locating the position of the slag line, comprising a nozzle body (1) and a slag line area (2), characterized in that: The slag line area (2) is provided with a scale area (3). The scale area (3) that can accurately view the position of the slag line is located within the slag line area (2), and the scale lines of the scale area (3) are drawn with a high-temperature resistant coating that can withstand temperatures above 500℃.

2. The submersible nozzle capable of locating the slag line position according to claim 1, characterized in that: The scale lines of the scale area (3) are green or yellow.

3. The submersible nozzle capable of locating the slag line position according to claim 1, characterized in that: The distance between adjacent scale lines on the scale area (3) is 0.5cm to 2.0cm.

4. The submersible nozzle capable of locating the slag line position according to any one of claims 1-3, characterized in that: The height of the scale area (3) is 1 / 3 to 2 / 3 of the height of the slag line area (2).

5. The submersible nozzle capable of locating the slag line position according to any one of claims 1-3, characterized in that: The distance between the lower edge of the scale area (3) and the lower edge of the slag line area (2) is less than the distance between the upper edge of the scale area (3) and the upper edge of the slag line area (2).

6. The submersible nozzle capable of locating the slag line position according to claim 5, characterized in that: The distance between the lower edge of the scale area (3) and the lower edge of the slag line area (2) is 13.52% to 25.35% of the height of the slag line area (2).

7. The submersible nozzle capable of locating the slag line position according to claim 5, characterized in that: The distance between the upper edge of the scale area (3) and the upper edge of the slag line area (2) is 27.65% to 42.78% of the height of the slag line area (2).

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