A ring flange suitable for mounting on water-cooled furnace ports of various sizes

Abstract

This utility model discloses a circular flange adaptable to the installation of water-cooled furnace openings of various sizes. The circular flange is used for welding with the existing furnace opening flange of the converter. The circular flange includes four 90° semi-rings, which are welded together to form a complete circular flange. The semi-rings are provided with positioning holes for installing pins and bevels for easy welding. Compared with the prior art, the advantages of this utility model are: it can be adapted to the installation of various water-cooled furnace openings, even those with deformed positioning dimensions; it does not require complete replacement of the existing furnace opening flange, only a portion needs to be retained and the circular ring welded, greatly reducing the amount of welding work and shortening the maintenance cycle; the installation process is convenient and quick, reducing the difficulty of operation; it helps to improve the production rhythm and reduce the cost increase caused by maintenance and adaptation issues; it is suitable for the installation of similar water-cooled furnace openings in converter smelting equipment in the steel industry, facilitating popularization and promotion.

Description

Technical Field

[0001] This utility model relates to the technical field of furnace mouth flange devices, specifically to a circular flange that is compatible with the installation of water-cooled furnace mouths of various sizes. Background Technology

[0002] A water-cooled furnace opening is a device used to cool the converter furnace opening, typically installed at the furnace opening flange. The furnace opening flange is fixed during the converter shell fabrication process, and its dimensions (including positioning and installation dimensions) are determined by the specific structural design of the water-cooled furnace opening. However, during use, the furnace opening flange is susceptible to deformation or damage due to factors such as high-temperature baking, impact from scrap steel, and furnace dismantling operations. If modifications to the water-cooled furnace opening alter its installation positioning dimensions, the original furnace opening flange will be incompatible, requiring a new furnace opening flange design to match the installation requirements of the water-cooled furnace opening or the modified water-cooled furnace opening.

[0003] Considering the complex welding process and large amount of welding required between the furnace opening flange and the furnace shell, it is necessary to retain a small portion of the existing furnace opening flanges and weld a ring onto them. However, this raises the issue of the weld strength between the ring and the furnace opening flange. Furthermore, it is necessary to address the compatibility of the ring flange with various water-cooled furnace openings. Existing ring flanges cannot solve these problems. Therefore, we propose a ring flange that is compatible with the installation of water-cooled furnace openings of various sizes. Utility Model Content

[0004] (I) Technical Issues

[0005] This invention provides a circular flange that is adaptable to the installation of water-cooled furnace openings of various sizes, with the aim of solving the problems mentioned in the background art.

[0006] (II) Technical Content

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a circular flange that is compatible with the installation of water-cooled furnace openings of various sizes. The circular flange is used for welding with the existing furnace opening flange of the converter. The circular flange includes four 90° semi-rings. The four semi-rings are welded together to form a complete circular flange. The semi-rings are provided with positioning holes for installing pins and bevels for easy welding.

[0008] Furthermore, the four semi-rings are formed by equally dividing a whole circular ring.

[0009] Furthermore, the bevel is located on the upper side of the inner ring of the semi-ring 1.

[0010] Furthermore, the positioning holes are evenly distributed on the semi-ring, and their number matches the number of positioning holes on the water-cooled furnace opening, so as to achieve rapid positioning and installation of the water-cooled furnace opening.

[0011] (III) Technical Effects

[0012] Compared with the prior art, the advantages of this utility model are: it can be adapted to the installation of various water-cooled furnace openings, and can be effectively installed even for water-cooled furnace openings with deformed positioning dimensions; it does not require complete replacement of the existing furnace opening flange, only a portion needs to be retained and a ring welded, which greatly reduces the amount of welding work and shortens the maintenance cycle; the installation process is convenient and quick, reducing the difficulty of operation; it helps to improve the production rhythm and reduce the cost increase caused by maintenance and adaptation issues; it is applicable to the installation of similar water-cooled furnace openings in converter smelting equipment in the steel industry, and is easy to popularize and promote. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of a circular flange that is compatible with the installation of water-cooled furnace openings of various sizes according to this utility model.

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of a circular flange that is adapted to the installation of water-cooled furnace openings of various sizes according to this utility model.

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the bevel position of a circular flange that is adapted to the installation of water-cooled furnace openings of various sizes according to this utility model.

[0016] As shown in the figure: 1. Semi-ring; 2. Positioning hole; 3. Bevel. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc., 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 this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] Combined with appendix Figure 1 To be continued Figure 3A circular flange adaptable to the installation of water-cooled furnace openings of various sizes, the circular flange being used for welding with the existing furnace opening flange of the converter, the circular flange comprising four 90° semi-rings 1, the four semi-rings 1 being welded together to form a complete circular flange, the semi-rings 1 having positioning holes 2 for installing pins and bevels 3 for easy welding.

[0021] The four semi-rings 1 are formed by equally dividing a whole circular ring.

[0022] The bevel 3 is located on the upper side of the inner ring of the semi-ring 1.

[0023] The positioning holes 2 are evenly distributed on the semi-ring, and their number matches the number of positioning holes of the water-cooled furnace opening, so as to achieve rapid positioning and installation of the water-cooled furnace opening.

[0024] The working principle of this utility model is as follows: The entire circular flange is equally divided into four 90° semi-rings 1. Each semi-ring 1 has pre-set positioning holes 2 and welding bevels 3 to ensure adaptability for on-site splicing and installation. Existing furnace opening flanges are retained, and the four semi-rings 1 are sequentially welded to these flanges. The bevels 3 on the semi-rings 1 enable non-overhead welding, enhancing weld strength and reducing welding workload (no need to replace the entire flange). For water-cooled furnace openings of different sizes or after modification, the positioning hole size is projected onto the ring. After aligning the positioning holes of the water-cooled furnace opening flange with the pre-welded positioning holes 2, pins and nuts are installed for fixation. This utility model, through its design of "retaining the original flange + splicing circular ring welding," solves the problems of large welding volume and complex processes between existing furnace opening flanges and furnace shells. Furthermore, the structure that can map positioning holes and bevel welding enables rapid adaptation and secure installation of various water-cooled furnace openings, ultimately reducing maintenance time and costs.

[0025] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A circular flange adaptable to installation at water-cooled furnace openings of various sizes, the circular flange being used for welding to existing furnace opening flanges of converters, characterized in that: The circular flange includes four 90° semi-rings (1), which are welded together to form a complete circular flange. The semi-rings (1) are provided with positioning holes (2) for installing pins and bevels (3) for easy welding.

2. The circular flange adaptable to various sizes of water-cooled furnace openings according to claim 1, characterized in that, The four semi-rings (1) are formed by equally dividing a whole circular ring.

3. The circular flange adaptable to various sizes of water-cooled furnace openings according to claim 1, characterized in that, The bevel (3) is located on the upper side of the inner ring (1).

4. The circular flange adaptable to various sizes of water-cooled furnace openings according to claim 1, characterized in that, The positioning holes (2) are evenly distributed on the semi-ring and their number matches the number of positioning holes of the water-cooled furnace opening, so as to achieve rapid positioning and installation of the water-cooled furnace opening.

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