Continuous casting tundish nozzle centering device

Abstract

The utility model belongs to the technical field of steelmaking equipment, and discloses a continuous casting tundish nozzle centering device, the centering device can be coaxially and detachably connected with a water outlet of a continuous casting tundish and a water inlet of a crystallizer, and the centering device comprises a positioning column, an arc-shaped frame, a grip and a hook. According to the centering device, the arc-shaped frame and the positioning column are connected and matched, so that the centering work of the continuous casting tundish nozzle and the crystallizer water inlet can be accurately completed, the stability of continuous casting production is ensured, the problem of product defects caused by irregular centering of the continuous casting tundish nozzle and the crystallizer water inlet is solved, and the production efficiency is improved. The production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steelmaking equipment, in particular to a continuous casting tundish nozzle centering device. Background Art

[0002] In the continuous casting production process of steelmaking, the molten steel in the ladle must pass through the tundish when flowing into the crystallizer. Therefore, the tundish is an important component connecting the ladle and the crystallizer. When in use, the tundish is generally set between the ladle and the crystallizer. The molten steel flows into the crystallizer through the water outlet of the tundish. Therefore, the alignment of the water outlet of the tundish and the water inlet of the crystallizer is a key process to ensure product quality in continuous casting production.

[0003] The accuracy of tundish nozzle alignment directly impacts the stability and efficiency of continuous casting production. It ensures uniform flow of molten steel from the tundish into the mold, preventing sloshing or skewed flow caused by nozzle misalignment, thereby ensuring the quality of the continuously cast billets.

[0004] However, at present, due to certain dimensional deviations of the tundish during manufacturing and use, it is difficult to ensure the absolute accuracy of the water inlet centering position. At present, in the production process, the tundish is generally transported to the top of the water inlet of the crystallizer by a crane, and then the staff visually inspects whether the water outlet of the tundish is aligned with the water inlet of the crystallizer, and according to the distance visually inspected by the staff, the crane is continuously directed to move the tundish so that it is aligned with the water inlet of the crystallizer. This process requires repeated operations. After confirming the centering setting, the tundish is lowered until its water outlet is directly above the water inlet of the crystallizer, the centering work is completed, and the next step is carried out. This traditional method has poor accuracy and low centering precision. In addition, during the debugging process, the tundish needs to be frequently moved by the crane to roughly align its water outlet with the water inlet of the crystallizer. This process is time-consuming and labor-intensive, and the crane utilization rate is low. It also increases the labor intensity of the operators, bringing great inconvenience to production.

[0005] Therefore, there is an urgent need for one or more new devices that can improve the accuracy of the nozzle alignment of the continuous casting ladle and reduce the loss of the crystallizer and product defects during the continuous casting production process due to differences in the nozzle position. Summary of the Invention

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a continuous casting tundish nozzle centering device.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A continuous casting tundish water outlet centering device, the centering device can be coaxially and detachably connected to the continuous casting tundish water outlet and the crystallizer water inlet;

[0009] The centering device includes a positioning column, an arc frame, a handle and a hook. The arc frame is arranged in a horizontal direction and is arranged in an arc shape. The radial inner surface of the arc frame can match the radial outer surface of the water outlet of the continuous casting tundish and can be detachably connected. The arc frame can be coaxially arranged with the water outlet of the continuous casting tundish.

[0010] The positioning column is arranged along the radial direction of the arc frame and is vertically connected to the arc frame. One end of the positioning column is vertically connected to the arc frame. A plurality of positioning columns are provided. The plurality of positioning columns are evenly spaced and connected and arranged on the radial outer surface of the arc frame. When the arc frame, the water outlet of the continuous casting tundish, and the water inlet of the crystallizer are coaxially arranged, the other end of the positioning column can be arranged in contact with the radial inner surface of the water inlet of the crystallizer.

[0011] The handle is connected to the arc frame;

[0012] The hook is arranged at one end of the handle away from the arc frame.

[0013] Furthermore, the handle includes a front handle and a rear handle, the front handle is arranged in a vertical direction, and the bottom end of the front handle is vertically connected to the arc frame, the rear handle is arranged in a horizontal direction, and the horizontal end of the rear handle is connected to the top end of the front handle, and the hook is connected to the other end of the horizontal end of the rear handle.

[0014] Furthermore, the shape of the radial inner surface of the arc frame is matched with the shape of the radial outer surface of the water outlet of the continuous casting tundish.

[0015] Furthermore, the arc frame is configured as a semicircular ring.

[0016] Furthermore, the number of the positioning columns is at least three.

[0017] The advantages and positive effects achieved by the utility model are:

[0018] 1. Compared with the traditional centering work, the utility model improves the accuracy of the centering of the water outlet of the continuous casting tundish and the water inlet of the crystallizer during the centering work, greatly reduces the time for centering work, improves work efficiency, ensures the stable flow of molten steel, reduces the scouring of the solidified shell of the crystallizer by the steel flow, and ensures the smooth progress of the continuous casting process.

[0019] 2. The utility model, through the connection and matching setting of the arc frame and the positioning column, enables the device to accurately complete the centering setting of the water outlet of the continuous casting ladle and the water inlet of the crystallizer, ensure the stability of continuous casting production, avoid product defects caused by misalignment of the water outlet of the continuous casting ladle and the water inlet of the crystallizer, and improve production efficiency.

[0020] 3. The present invention facilitates the use of the device by providing a handle, avoiding the risk of the tundish collapsing when the worker grips the curved frame against the tundish nozzle during operation, thereby improving work safety. The provision of a hook facilitates the storage and management of the device, making it easier for workers to use and meeting the needs of enterprise production management. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structural connection of the device of the utility model;

[0022] Figure 2 This is a diagram showing the structural connection and usage status of the device of the utility model with the water outlet of the tundish and the water inlet of the crystallizer;

[0023] Figure 3 This is a photo of the device of the utility model and the water outlet of the tundish and the water inlet of the crystallizer in use. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to specific examples. The following examples are merely illustrative and non-restrictive, and should not be used to limit the scope of protection of the present invention.

[0025] The raw materials used in the present invention, unless otherwise specified, are all conventional commercial products. The methods used in the present invention, unless otherwise specified, are all conventional methods in the art. The quality of each substance used in the present invention is the quality of conventional use. The structures, connections, etc. not described in detail in the present invention are understood to be conventional technical means in the art.

[0026] A continuous casting tundish nozzle centering device, such as Figures 1 to 3 As shown, the centering device can be coaxially and detachably connected to the water outlet 5 of the continuous casting tundish and the water inlet 6 of the crystallizer;

[0027] The centering device includes a positioning column 1, an arc frame 2, a handle 3 and a hook 4. The arc frame is arranged in a horizontal direction and is arranged in an arc shape. The radial inner surface of the arc frame can be matched with the radial outer surface of the water outlet of the continuous casting tundish and can be detachably connected. The arc frame can be coaxially attached to the water outlet of the continuous casting tundish.

[0028] The positioning column is arranged along the radial direction of the arc frame and is connected to the arc frame vertically. One end of the positioning column is connected to the arc frame vertically. There are multiple positioning columns, and the multiple positioning columns are evenly spaced and connected on the radial outer surface of the arc frame. When the arc frame, the water outlet of the continuous casting tundish, and the water inlet of the crystallizer are coaxially arranged, the other end of the positioning column can be arranged on the radial inner surface of the water inlet of the crystallizer. When the arc frame, the water outlet of the continuous casting tundish, and the water inlet of the crystallizer are coaxially arranged, the other end of the positioning column can be arranged on the radial inner surface of the water inlet of the crystallizer. In other words, the length of the positioning column arranged on the radial outer surface of the arc frame is equal to the difference in diameter between the coaxially arranged water outlet of the tundish and the water inlet of the crystallizer. Therefore, when the centering device is coaxially arranged with the water outlet of the tundish or the water inlet of the crystallizer, it can be ensured that the device can determine the centering of the water outlet of the continuous casting tundish and the water inlet of the crystallizer through multiple positioning columns.

[0029] The handle is connected to the arc frame, making the device easier to use and carry.

[0030] The hook is arranged at one end of the handle away from the arc-shaped frame, which is convenient for storage and management of the device.

[0031] This centering device includes a positioning column, an arc frame, a handle and a hook. During use, when the continuous casting ladle is transported to the top of the water inlet of the crystallizer by a crane, the staff first visually checks whether the water outlet of the ladle is aligned with the water inlet of the crystallizer. After rough alignment, the ladle is lowered until its water outlet is directly above the water inlet of the crystallizer, and then the radial inner surface of the arc frame of this centering device is attached to the radial outer surface of the water outlet of the continuous casting ladle. Then, the handle is used to slowly push the water outlet of the ladle until the other end of the positioning column is attached to the radial inner surface of the water inlet of the crystallizer. At this time, the coaxial setting of the arc frame, the water outlet of the continuous casting ladle and the water inlet of the crystallizer is guaranteed. That is to say, the water outlet of the continuous casting ladle and the water inlet of the crystallizer have been aligned. The centering work is completed and the next step can be carried out.

[0032] The device of the utility model is connected and matched with the positioning column, so that the device can accurately complete the centering setting of the continuous casting tundish water inlet and the crystallizer water inlet, ensure the stability of continuous casting production, avoid product defects caused by misalignment of the continuous casting tundish water inlet and the crystallizer water inlet, and improve production efficiency. The provision of a handle facilitates the use of the device, avoids the safety accident of the staff caused by the collapse of the tundish when the staff holds the arc frame to fit the continuous casting tundish water inlet during the use of the device, and improves work safety. The provision of a hook facilitates the storage and management of the device, is convenient for the staff to use, and meets the needs of enterprise production management.

[0033] In this embodiment, the handles include a front handle 31 and a rear handle 32. The front handle is vertically arranged, with its bottom end perpendicularly connected to the curved frame. The rear handle is horizontally arranged, with one horizontal end of the rear handle connected to the top of the front handle, and a hook connected to the other horizontal end of the rear handle. The front handle increases the height to which the curved frame can be lowered during centering, while the rear handle facilitates gripping and use of the device.

[0034] In this embodiment, the radial inner surface shape of the arc frame is matched with the radial outer surface shape of the water outlet of the continuous casting ladle. This structural setting facilitates the use of the device in the centering of the water outlet of the continuous casting ladle and improves accuracy.

[0035] Preferably, the arc frame is configured as a semicircular ring, so that the arc frame can be better attached to the outer surface of the water outlet of the continuous casting tundish, thereby improving the accuracy of the centering work.

[0036] In this embodiment, the number of the positioning columns is at least three, so as to improve the accuracy of the centering work.

[0037] Although the embodiments of the present invention are disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments.

Claims

1. A continuous casting tundish nozzle centering device, characterized by: The centering device can be coaxially and detachably connected to the water outlet of the continuous casting tundish and the water inlet of the crystallizer; The centering device includes a positioning column, an arc frame, a handle and a hook. The arc frame is arranged in a horizontal direction and is arranged in an arc shape. The radial inner surface of the arc frame can match the radial outer surface of the water outlet of the continuous casting tundish and can be detachably connected. The arc frame can be coaxially arranged with the water outlet of the continuous casting tundish. The positioning column is arranged along the radial direction of the arc frame and is vertically connected to the arc frame. One end of the positioning column is vertically connected to the arc frame. A plurality of positioning columns are provided. The plurality of positioning columns are evenly spaced and connected and arranged on the radial outer surface of the arc frame. When the arc frame, the water outlet of the continuous casting tundish, and the water inlet of the crystallizer are coaxially arranged, the other end of the positioning column can be arranged in contact with the radial inner surface of the water inlet of the crystallizer. The handle is connected to the arc frame; The hook is arranged at one end of the handle away from the arc frame.

2. The continuous casting tundish nozzle centering device according to claim 1, characterized in that: The handle includes a front handle and a rear handle. The front handle is arranged in a vertical direction, and the bottom end of the front handle is vertically connected to the arc frame. The rear handle is arranged in a horizontal direction, and one horizontal end of the rear handle is connected to the top end of the front handle, and the hook is connected to the other end of the horizontal end of the rear handle.

3. The continuous casting tundish nozzle centering device according to claim 1, characterized in that: The shape of the radial inner surface of the arc frame is matched with the shape of the radial outer surface of the water outlet of the continuous casting tundish.

4. The continuous casting tundish nozzle centering device according to claim 3, characterized in that: The arc frame is configured in a semicircular ring shape.

5. The continuous casting tundish nozzle centering device according to any one of claims 1 to 4, characterized in that: The number of the positioning columns is at least 3.

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