Continuous casting submersed nozzle centering detection device

Abstract

The utility model discloses a continuous casting submersed nozzle centering detection device, which comprises two main bodies which have the same structure and are symmetrically distributed, each main body comprises two cover plates, and the same side edges of the two cover plates are connected through a connecting plate; a handle is arranged at the bottom of the bottom cover plate; a sliding rod is installed between the two cover plates in a sliding mode, a spring is installed in parallel with the sliding rod, and the spring is located between the edges, opposite to the connecting plates, of the cover plates. A scale groove is formed in the cover plate and is parallel to the motion trail of the sliding rod. During detection, the two main bodies clamp the submersed nozzle from the two sides, the sliding rod tightly attached to the spring slides along the sliding rail along with deformation of the spring, the sliding rod points to the scales of the scale grooves in the corresponding positions, and whether the water outlet is centered or not can be rapidly and visually judged by comparing the scale values on the two main bodies.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous casting production, in particular to a continuous casting immersed nozzle centering detection device. Background Art

[0002] The submerged nozzle is located between the tundish and the crystallizer in the continuous casting process. It is the guide pipe for the molten steel to flow from the tundish to the crystallizer. Its functions are: to prevent the secondary oxidation of the molten steel; to control the flow state and injection speed of the molten steel; to promote the floating of inclusions and prevent the protective slag non-metallic inclusions from being drawn into the molten steel.

[0003] However, the misalignment of the submerged nozzle will cause the center of the steel flow to be skewed, and the local scouring of the shell will be serious. The uniformity of the cooling of the shell in the crystallizer will be greatly affected, affecting the product quality, and in severe cases, it will also cause steel leakage. At the same time, the refractory material of the submerged nozzle is not evenly melted, and local damage occurs. The nozzle is frequently replaced, which can not guarantee the smooth progress of production and also increases production costs. At present, the alignment of the submerged nozzle is mainly adjusted by the operator's visual inspection, but due to visual errors, it is often not accurate to align, and the accuracy is low. Utility Model Content

[0004] In order to solve the deficiencies in the prior art, the present application proposes a continuous casting submerged nozzle alignment detection device, with the help of which workers can quickly and intuitively detect the continuous casting submerged nozzle alignment.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A continuous casting immersion nozzle centering detection device, comprising:

[0007] 2 main bodies, the structures of the two main bodies are identical and symmetrically distributed;

[0008] Each of the main bodies includes two cover plates, and the two cover plates are connected on the same side by a connecting plate; a handle is provided at the bottom of the bottom cover plate;

[0009] A slide bar is slidably mounted between the two cover plates, and a spring is mounted parallel to the slide bar, wherein the spring is located between the edges of the cover plates opposite to the connecting plate;

[0010] The cover plate is provided with a scale groove, and the scale groove is parallel to the movement track of the slide bar.

[0011] Furthermore, when not being tested, the spring is initially arranged close to the slide bar.

[0012] Furthermore, slide rails are symmetrically provided on the opposite surfaces of the two cover plates, the upper and lower slide rails are arranged perpendicular to the connecting plate, and the two ends of the slide rod are respectively located in the slide rails.

[0013] Furthermore, the scale groove and the slide rail on the cover plate are parallel to each other, and the scale groove is opposite to the bottom of the slide rod.

[0014] Furthermore, return springs are arranged at both ends of the slide rod.

[0015] Furthermore, the length, width and height dimensions of the two main bodies when combined are the same as the dimensions of the upper opening of the crystallizer.

[0016] Beneficial effects of the utility model:

[0017] 1. The utility model has a simple structure and is convenient and quick to operate in handheld mode. It can complete the centering detection of a flow within one minute without any safety risks. It ensures that the centering of the immersion nozzle can be measured quickly and accurately without affecting the startup progress, and then adjusted.

[0018] 2. The utility model can intuitively judge the centering condition of the submerged nozzle by observing the scale.

[0019] 3. The utility model takes into account operational flexibility, convenience and accuracy, which is of great significance for ensuring the centering of the immersed nozzle, reducing time delays and improving the quality of continuous casting billets, and has great industry promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the water inlet centering detection device;

[0021] Figure 2 This is a schematic diagram of the disassembly of the nozzle centering detection device;

[0022] Figure 3 It is a schematic diagram of the upper opening of the crystallizer;

[0023] Figure 4 It is the layout diagram of the scale grooves;

[0024] Figure 5 It is a schematic diagram of the slider;

[0025] Figure 6 This is a working diagram of the water inlet centering detection device;

[0026] In the figure, 1, left main body, 2, right main body, 3, handle, 4, scale groove, 5, cover plate; 6, slide rod; 7, spring, 8, immersion nozzle. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] The continuous casting immersion nozzle centering detection device designed in this application is composed of two symmetrical left and right main bodies, such as Figure 1 The left main body 1 and the right main body 2 are shown respectively. Since the left main body 1 and the right main body 2 are symmetrical structures, only the left main body 1 is taken as an example for detailed introduction:

[0029] The left main body 1 includes two cover plates 5, which are arranged parallel to each other one above the other, and the leftmost of the two cover plates 5 are connected by a connecting plate to form a C-shaped main body. A handle 3 is fixed at the bottom of the bottom cover plate 5 for workers to hold during inspection.

[0030] Sliding rails are symmetrically provided on the opposite surfaces of the two cover plates 5. The upper and lower sliding rails are arranged perpendicularly to the connecting plate. A sliding rod 6 is provided between the upper and lower sliding rails, and the sliding rod 6 can move along the sliding rails.

[0031] A scale groove 4 is provided at the side edge of the bottom cover plate 5 . The scale groove 4 is parallel to the slide rail on the cover plate 5 , and the scale groove 4 is opposite to the bottom of the slide bar 6 . The distance moved by the slide bar 6 along the slide rail can be directly read through the scale groove 4 .

[0032] A spring 7 is connected between the ends of the right sides of the upper and lower slide rails, so when the spring 7 is deformed toward the outside, that is, the connecting plate side, it pushes the slide bar 6 to move toward the outside along the slide rail.

[0033] Similarly, the right main body 2 also has a cover plate 5, a handle 3, a slide rail, a slide rod 6, a scale groove 4 and a spring 7, which is completely symmetrical with the left main body 1.

[0034] In this embodiment, the height of the left main body 1 and the right main body 2 needs to be the same as the height of the upper opening of the crystallizer; the length of the left main body 1 and the right main body 2 when combined together needs to be the same as the height of the upper opening of the crystallizer.

[0035] Since the immersion nozzle is a guide pipe that flows from the tundish to the crystallizer, when the detection device designed by the utility model is used to perform centering detection on the immersion nozzle, the worker only needs to hold the handle 3 to merge the left main body 1 and the right main body 2 from both sides of the immersion nozzle; it should be noted that it is necessary to ensure that the upper and lower, left and right sides of the left main body 1 and the right main body 2 are kept flush with the upper mouth of the crystallizer; when the left main body 1 and the right main body 2 are stuck in the immersion nozzle, the springs 7 on the left main body 1 and the right main body 2 will be stretched to both sides by the immersion nozzle, and the spring 7 pushes the sliding rod 6 closely attached thereto to slide to both sides along the sliding rail 5; the directional arrows at the bottom of the sliding rod 6 also point to different scales on the scale groove 4, such as Figure 6 If the water outlet is not centered, the expansion and contraction amounts of the springs 7 on both sides are different, and the slide bars 6 on both sides point to different scales on the scale groove 4, indicating that the water outlet is not centered; on the contrary, if the scales pointed to by the slide bars 6 on both sides are the same, it means that the water outlet is centered.

[0036] After the detection is completed, the left main body 1 and the right main body 2 are separated from the left and right sides respectively, and the slide bar 6 is reset, or reset when the next detection is performed.

[0037] In this embodiment, a return spring can also be set at both ends of the slide rod 6, one end of the return spring is connected to the end of the slide rod 6, and the other end is fixedly connected to one side of the mounting spring 7, and the return spring can be used to achieve automatic return.

[0038] The above embodiments are only used to illustrate the design ideas and features of the utility model, and their purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly. The protection scope of the utility model is not limited to the above embodiments. Therefore, any equivalent changes or modifications made based on the principles and design ideas disclosed by the utility model are within the protection scope of the utility model.

Claims

1. A continuous casting immersion nozzle centering detection device, characterized in that: include: 2 main bodies, the structures of the two main bodies are identical and symmetrically distributed; Each of the main bodies comprises two cover plates (5), and the two cover plates (5) are connected on the same side by a connecting plate; a handle (3) is provided at the bottom of the bottom cover plate (5); A slide bar (6) is slidably mounted between the two cover plates (5), and a spring (7) is mounted parallel to the slide bar (6), wherein the spring (7) is located between the edges of the cover plates (5) opposite to the connecting plate; The cover plate (5) is provided with a scale groove (4), and the scale groove (4) is parallel to the movement track of the slide bar (6).

2. A continuous casting submerged nozzle centering detection device according to claim 1, characterized in that: When not being tested, the spring (7) is initially arranged in close contact with the slide bar (6).

3. The continuous casting submerged nozzle centering detection device according to claim 1, characterized in that: Slide rails are symmetrically arranged on the opposite surfaces of the two cover plates (5), and the upper and lower slide rails are arranged perpendicular to the connecting plate. Both ends of the slide rod (6) are located in the slide rails respectively.

4. A continuous casting submerged nozzle centering detection device according to claim 1 or 3, characterized in that: The scale groove (4) and the slide rail on the cover plate (5) are parallel to each other, and the scale groove (4) and the bottom of the slide rod (6) are opposite to each other.

5. The continuous casting submerged nozzle centering detection device according to claim 1, characterized in that: Return springs are arranged at both ends of the slide rod (6).

6. A continuous casting submerged nozzle centering detection device according to claim 1, characterized in that: One end of the return spring is connected to the end of the slide rod (6), and the other end is fixedly connected to one side of the mounting spring (7).

7. The continuous casting submerged nozzle centering detection device according to claim 1, characterized in that: The length, width and height dimensions of the two main bodies when combined are the same as the dimensions of the upper opening of the crystallizer.

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