Water gap insertion depth measuring tool
By designing a water port insertion depth measurement tool including cage, measuring wire, adjustment structure and positioning structure, the operation difficulties, inaccuracy and high cost of insertion depth measurement in slab continuous casting are solved, and the rapid and accurate Measurement results.
Patent Information
- Application Number
- CN202420152157.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-22
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-01-22
AI Technical Summary
In the continuous casting production of slabs, the prior art is used to measure the insertion depth of immersion water ports, which are inconvenient to operate, inaccurate measurement results, time-consuming and cost-effective.
It provides a water port insertion depth measurement tool, including a cage, measuring wire, adjusting structure, positioning structure and handle. By adjusting the measuring wire length, the positioning structure ensures vertical positioning, and achieves fast and accurate insertion depth measurement.
This tool realizes fast and accurate measurement of water port insertion depth, reduces measurement costs, solves problems such as operation difficulties, inaccuracy, and long time, and improves measurement efficiency and practicality.
Smart Images
Figure CN222364525U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of iron and steel metallurgy, and in particular to a nozzle insertion depth measuring tool. Background Art
[0002] In the slab continuous casting production, the steel flow from the tundish to the crystallizer is protected and poured with an immersion nozzle. The outlet hole of the immersion nozzle is immersed below the steel liquid level of the crystallizer. The distance from the upper edge of the immersion nozzle side hole to the crystallizer liquid level is called the insertion depth. For each slab continuous casting machine, there is a reasonable insertion depth range according to the casting section, drawing speed, immersion nozzle shape, etc. Within this range, the crystallizer flow field is reasonable; if the insertion depth is less than the lower limit of the range, the steel flow velocity on the surface of the crystallizer meniscus (referring to the steel liquid level, the same below) will be large, and the meniscus will fluctuate greatly, which is easy to cause slag rolling, resulting in quality problems and even operational accidents; if the insertion depth is greater than the upper limit of the range, the crystallizer meniscus is inactive, and the heat transferred to the protective slag by the meniscus is insufficient, which makes it difficult to melt the protective slag and affects the normal production of continuous casting. It can be seen that the insertion depth of the immersion nozzle is crucial for slab continuous casting production.
[0003] Since the insertion depth of the immersion nozzle is so important, it is very necessary to measure the actual insertion depth of the immersion nozzle. In actual production, a steel pipe with a diameter of 5mm is often used for measurement. The usual operation is to insert the steel pipe into the crystallizer for a period of time, then take the steel pipe out and cool it to room temperature, measure the remaining length of the steel pipe with a ruler, and then calculate the insertion depth of the immersion nozzle. This measurement method has the following shortcomings: First, it is inconvenient to operate because the environment around the crystallizer is poor, and the steel pipe is thin and has no handle, which is not easy to control; second, the measurement result is inaccurate. During the measurement operation, it is impossible to ensure that the steel pipe is always vertical, resulting in inaccurate measurement results; third, the measurement takes a long time, and the cooling link of the steel pipe is a bottleneck, usually It takes more than 10 minutes; fourth, the cost is high, and each measurement requires a steel pipe.
[0004] In view of this, the present application aims to provide a nozzle insertion depth measurement tool to better solve the above-mentioned technical problems. Summary of the invention
[0005] The purpose of the embodiments of the present application is to provide a nozzle insertion depth measurement tool, which can solve the technical problem of the insertion depth of an immersion nozzle.
[0006] An embodiment of the present application provides a water nozzle insertion depth measuring tool, including a retaining frame, a measuring wire, an adjustment structure, a positioning structure and a handle, one end of the measuring wire is located in the retaining frame, and the other end extends out of the retaining frame, and is used to be inserted into molten steel for measurement, the adjustment structure is installed on the retaining frame and connected to the measuring wire, and is used to adjust the length of the measuring wire extending out of the retaining frame, the positioning structure is arranged on the retaining frame, and is used to vertically position the retaining frame, and the handle is arranged on the retaining frame.
[0007] Furthermore, the retaining frame is configured as a hollow steel pipe.
[0008] Furthermore, the measuring wire is set to be a steel wire or a steel tube with a diameter of 4.5-5.5 mm.
[0009] Furthermore, the adjustment structure includes an adjustment bolt and a fixing nut, and the retaining frame is provided with a screw hole for connecting with the adjustment bolt.
[0010] Furthermore, the positioning structure is arranged at the top end of the retaining frame, and the positioning structure is used to abut against the lower surface of the upper water inlet of the tundish to be measured for positioning.
[0011] Furthermore, the positioning structure is configured as a positioning block, and the top of the positioning block is provided with anti-slip grooves.
[0012] Furthermore, the handle is fixedly connected to the retaining frame, and the handle is arranged close to the top end of the retaining frame.
[0013] Beneficial effects of the utility model:
[0014] The utility model provides a water inlet insertion depth measuring tool, which comprises a retaining frame, a measuring wire, an adjusting structure, a positioning structure and a handle. One end of the measuring wire is located in the retaining frame, and the other end extends out of the retaining frame, and is used for being inserted into molten steel for measurement. The adjusting structure is installed on the retaining frame and connected to the measuring wire, and is used for adjusting the length of the measuring wire extending out of the retaining frame. The positioning structure is arranged on the retaining frame, and is used for vertically positioning the retaining frame. The handle is arranged on the retaining frame. The utility model has a simple structure and a reasonable design. When in use, the length of the measuring wire can be adjusted and fixed by the adjusting structure, so as to be inserted into the molten steel and perform multiple measurements until the measuring wire can no longer be fixed by the adjusting structure, thereby achieving accurate measurement and reducing measurement costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 It is a schematic diagram of the structure of some embodiments of the utility model;
[0017] Figure 2 for Figure 1 Schematic diagram of the structure from another perspective.
[0018] The reference numerals are:
[0019] Retaining frame 1, measuring wire 2, adjusting structure 3, adjusting bolt 31, fixing nut 32, positioning structure 4, handle 5. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0023] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0024] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0025] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0026] See also Figure 1-Figure 2 As shown, the nozzle insertion depth measuring tool described in this embodiment includes a retaining frame 1, a measuring wire 2, an adjusting structure 3, a positioning structure 4 and a handle 5. One end of the measuring wire 2 is located in the retaining frame 1, and the other end extends out of the retaining frame 1, and is used to be inserted into the molten steel for measurement. The adjusting structure 3 is installed on the retaining frame 1 and connected to the measuring wire 2, and is used to adjust the length of the measuring wire 2 extending out of the retaining frame 1. The positioning structure 4 is arranged on the retaining frame 1, and is used to vertically position the retaining frame 1. The handle 5 is arranged on the retaining frame 1.
[0027] This embodiment has a simple structure and a reasonable design. When in use, the length of the fixed measuring wire 2 can be adjusted by adjusting the structure 3 to insert the measuring wire 2 into the molten steel and perform multiple measurements until the measuring wire 2 can no longer be fixed by the adjusting structure 3, thereby achieving accurate measurement and reducing measurement costs.
[0028] When used for specific measurements, the measuring tool is placed near the immersion nozzle for measurement, the positioning block is placed against the lower surface of the upper nozzle of the tundish for vertical positioning, and the measuring wire 2 is inserted into the molten steel in the crystallizer; measure in the crystallizer for 5-7 seconds, then take it out, and compare it with the external ruler to obtain the nozzle insertion depth.
[0029] The measurement tool provided in this embodiment can be used to measure the depth of the crystallizer immersion nozzle in slab continuous casting, which is difficult to operate, inaccurate, time-consuming, and costly. The tool is fast and accurate in measurement and highly practical; it can be used for other continuous casting machines, so it has high promotion value.
[0030] In some specific examples, the retaining frame 1 is configured as a hollow steel tube.
[0031] In this embodiment, a hollow steel tube is used as the retaining frame 1, which can accommodate the measuring wire 2 and connect other components. The structure is simple and practical.
[0032] In some embodiments, the measuring wire 2 is configured as a steel wire or a steel tube with a diameter of 4.5-5.5 mm.
[0033] In this embodiment, by using a steel wire or steel tube with a diameter of 4.5-5.5 mm as the measuring wire 2, it can be inserted into the molten steel of the crystallizer for operation and can be reused many times, thereby effectively reducing the cost of measuring consumables.
[0034] In some embodiments, the adjustment structure 3 includes an adjustment bolt 31 and a fixing nut 32 , and the retaining frame 1 is provided with a screw hole for connecting with the adjustment bolt 31 .
[0035] In this embodiment, it is specifically shown that the position of the measuring wire 2 is adjusted and fixed by adjusting the bolt 31 and the fixing nut 32, and the structure is simple and the adjustment and measurement are convenient.
[0036] In some embodiments, the positioning structure 4 is disposed at the top end of the retaining frame 1, and the positioning structure 4 is used to abut against the lower surface of the upper water inlet of the tundish to be measured for positioning.
[0037] Specifically, the positioning structure 4 is configured as a positioning block, and the top of the positioning block is provided with anti-slip grooves.
[0038] In this embodiment, it is specifically shown that a positioning block is provided to perform vertical positioning with respect to the lower surface of the upper water inlet of the tundish to be measured, so as to avoid the influence of skew on the measurement result. The structure is simple and easy to use.
[0039] In some embodiments, the handle 5 is fixedly connected to the retaining frame 1 , and the handle 5 is disposed close to the top end of the retaining frame 1 .
[0040] In this embodiment, the handle 5 is provided to facilitate holding and measuring operations, and the structure is simple and easy to use.
[0041] In the above embodiment, a scale composed of a scale plate and a reference plate can be used, wherein the scale plate is a flat steel plate with scales, and the scale range is the distance from the section of the continuous casting crystallizer immersion nozzle to the upper edge of the nozzle side hole, and the reference plate is a flat steel plate welded to the end of the scale plate, which is used to position the measuring tool during comparison. The tool that completes the crystallizer liquid level measurement operation is compared with the scale, and the positioning block of the measuring tool is pressed against the reference plate. At this time, the scale corresponding to the front end of the measuring wire 2 is the insertion depth of the immersion nozzle.
[0042] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A nozzle insertion depth measuring tool, characterized in that: It includes a retaining frame, a measuring wire, an adjusting structure, a positioning structure and a handle. One end of the measuring wire is located in the retaining frame, and the other end extends out of the retaining frame, and is used to be inserted into molten steel for measurement. The adjusting structure is installed on the retaining frame and connected to the measuring wire, and is used to adjust the length of the measuring wire extending out of the retaining frame. The positioning structure is arranged on the retaining frame, and is used to vertically position the retaining frame. The handle is arranged on the retaining frame.
2. The nozzle insertion depth measuring tool according to claim 1, characterized in that: The retaining frame is configured as a hollow steel pipe.
3. The nozzle insertion depth measuring tool according to claim 1, characterized in that: The measuring wire is set to be a steel wire or a steel tube with a diameter of 4.5-5.5 mm.
4. The nozzle insertion depth measuring tool according to claim 1, characterized in that: The adjusting structure comprises an adjusting bolt and a fixing nut, and the retaining frame is provided with a screw hole for connecting with the adjusting bolt.
5. The nozzle insertion depth measuring tool according to claim 1, characterized in that: The positioning structure is arranged at the top end of the retaining frame, and the positioning structure is used to abut against the lower surface of the upper water inlet of the tundish to be measured for positioning.
6. The nozzle insertion depth measuring tool according to claim 5, characterized in that: The positioning structure is configured as a positioning block, and the top of the positioning block is provided with anti-slip grooves.
7. The nozzle insertion depth measuring tool according to claim 1, characterized in that: The handle is fixedly connected to the retaining frame, and the handle is arranged close to the top end of the retaining frame.