A device suitable for quick repair of castables

Abstract

The utility model discloses a device suitable for quick repair of castables, and relates to the technical field of castable repair in a furnace. The device suitable for quick repair of castables is a steel structure, comprising a V-shaped portion and two extension portions, wherein the two extension portions are integrally connected to two ends of the V-shaped portion, and the center lines of the two extension portions are located on the same straight line. The utility model only needs to remove part of the old castables to allow the internal grasping nails of the castables to leak out, and the device is welded with the grasping nails before pouring new castables. The connection strength between the old and new castables can be ensured, which not only saves a large amount of castables and avoids damage to the internal equipment and facilities of the castables, but also speeds up the repair of the castables.

Description

Technical Field

[0001] The utility model relates to the technical field of repairing castables in furnaces, in particular to a device suitable for quickly repairing castables. Background Art

[0002] The lining castables of boilers and other furnaces need to be inspected regularly. If a small number of cracks appear, refractory patch materials can be considered for repair. If there are significant cracks, shedding and other major damage, the lining castable needs to be re-poured.

[0003] In the existing castable repair construction, the original castable must be completely removed, leaving out the nails completely, to avoid the new castable falling off due to the poor strength of the direct connection between the new and old castables. On the other hand, due to the high hardness of the castable, it is necessary to use a pneumatic pick to remove it, which is easy to damage the equipment and facilities inside the castable, greatly limiting the construction speed of the castable. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned problems in the prior art and provide a device suitable for the rapid repair of castables, which only requires the removal of a small amount of old castables, can ensure the connection strength of the new and old castables, save castables, avoid damage to the internal structure of the castables, and increase the construction speed of the new castables.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device suitable for quick repair of castables, the device suitable for quick repair of castables being a steel structure, comprising a V-shaped portion (1) and two extension portions (2), the two extension portions (2) being integrally connected to both ends of the V-shaped portion (1), and the center lines of the two extension portions (2) being located on the same straight line;

[0007] The distance from the midpoint of the center line of the V-shaped portion (1) to the straight line where the extension portion (2) is located is 40-60 mm; the length of the extension portion (2) is 10-30 mm;

[0008] The V-shaped portion (1) and the two extension portions (2) are formed by bending steel bars, and the diameter of the steel bars is not less than 6 mm;

[0009] A limiting plate (4) is provided on the inner side of the middle of the V-shaped portion (1); the limiting plate (4) is parallel to the straight line where the center line of the extension portion (2) is located, and the limiting plate (4) is perpendicular to the plane where the center line of the V-shaped portion (1) is located.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model only needs to remove part of the old castable material to make the internal nails of the old castable material leak out, and the device is welded with the internal nails of the old castable material, and then the new castable material is poured; after pouring, the V-shaped part and the extension part are stretched into the new castable material and tightly combined, which can ensure the connection strength between the new and old castable materials, not only saving a lot of castable material, avoiding damage to the equipment and facilities inside the castable material, but also speeding up the repair speed of the castable material;

[0012] The utility model has an inverted V-shaped structure or a limit plate on the V-shaped part, so that the outer end of the grasping nail is against the inside of the inverted V-shaped part or one side of the limit plate, and then welding is performed, so that the height of the device after welding has strong consistency; the overall connection strength is balanced, and further damage to the castable is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of Example 1.

[0014] Figure 2 This is a schematic diagram of Example 1 after welding with the grab pins.

[0015] Figure 3 for Figure 2 A partial enlarged schematic diagram.

[0016] Figure 4 This is a schematic diagram of the state after pouring the new castable.

[0017] Figure 5 This is a schematic diagram of the structure of Example 2.

[0018] Figure 6 This is a schematic diagram of the structure of Example 3.

[0019] In the figure: 1, V-shaped part; 2, extension part; 3, inverted V part; 4, limit plate; 5, old castable; 6, grab nail; 7, new castable. DETAILED DESCRIPTION

[0020] 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 herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" that may appear 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or an inseparable connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] The present invention is further described in detail below in conjunction with the embodiments.

[0024] Specific embodiment 1 of the device for rapid repair of castables provided by the utility model:

[0025] See also Figure 1-4 , a device suitable for rapid repair of castables, which is made of bent high-temperature resistant steel bars, and the diameter of the steel bars should not be less than 6mm.

[0026] The structure after the steel bar is bent includes a V-shaped portion 1 and two extension portions 2. The two extension portions 2 are integrally connected to two ends of the V-shaped portion 1, and the center lines of the two extension portions 2 are located on the same straight line.

[0027] The distance from the center point of the V-shaped portion 1 to the straight line where the extension portion 2 is located is preferably 40-60 mm, and in this embodiment, the distance is about 50 mm. The length of the extension portion 2 is preferably 10-30 mm, and in this embodiment, the length is about 20 mm.

[0028] Damaged castable repair construction process:

[0029] The old castable 5 is removed until the gripping nail 6 leaks out about 10 mm; in this embodiment, the gripping nail 6 inside the old castable 5 is Y-shaped; it is only necessary to remove pits at the two ends of the Y-shaped gripping nail 6 to make the ends of the gripping nail 6 leak out;

[0030] Grind the ends of the leaked nails 6 to remove carbonization, corrosion, attachments, etc.

[0031] The device is connected to the internal gripping nail 6 of the old castable 5, and the V-shaped part 1 is welded to one side of the end of the gripping nail 6, and the welding is required to be firm and reliable;

[0032] The casting material is restored according to the casting material construction process, requiring that the new casting material 7 needs to completely cover the device, and the surface of the new casting material 7 should be no less than 10 mm away from the top of the device.

[0033] The repair process simplifies the process of removing the old castable 5, improves efficiency, and can reduce or even avoid the possibility of equipment damage. After pouring, the new castable 7 and the old castable 5 are connected through the device and the gripping nails 6, so that the new castable 7 and the old castable 5 have a high connection strength at all locations.

[0034] Specific embodiment 2 of the device for rapid repair of castables provided by the utility model:

[0035] See also Figure 5 The difference between this embodiment and the first embodiment is that the center of the V-shaped portion 1 is bent toward the straight line direction where the center line of the extension portion 2 is located to form an inverted V portion 3.

[0036] When the old castable 5 is partially removed to form a pit at the end of the Y-shaped nail 6, it is difficult to ensure the consistency of the pit depth and shape in actual operation, and the welding connection position between the device and the nail 6 is not convenient to accurately determine, which is not conducive to the height consistency of the device after welding; through the inverted V-part 3 in this embodiment, the inverted V-part 3 can be welded on the outside of the end of the nail 6, so that the height of the device after welding can be more consistent.

[0037] Specific embodiment 3 of the device for rapid repair of castables provided by the utility model:

[0038] See also Figure 6 The difference between this embodiment and embodiment 1 is that a limit plate 4 is provided on the inner side of the middle of the V-shaped portion 1, the limit plate 4 is parallel to the straight line where the center line of the extension portion 2 is located, and the limit plate 4 is perpendicular to the plane where the center line of the V-shaped portion 1 is located.

[0039] As an alternative to Example 2, this embodiment does not have an inverted V-portion 3, but is limited by a limiting plate 4. During welding, the limiting plate 4 is made to abut against the outer side of the end of the grabbing nail 6, and the extended height of all devices after welding can be made more consistent, thereby facilitating the pouring of new casting material 7.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device suitable for rapid repair of castables, characterized in that: The device suitable for quick repair of castables is a steel structure, comprising a V-shaped portion (1) and two extension portions (2), wherein the two extension portions (2) are integrally connected to both ends of the V-shaped portion (1), and the center lines of the two extension portions (2) are located on the same straight line; The distance from the midpoint of the center line of the V-shaped portion (1) to the straight line where the extension portion (2) is located is 40-60 mm; the length of the extension portion (2) is 10-30 mm; The V-shaped portion (1) and the two extension portions (2) are formed by bending steel bars, and the diameter of the steel bars is not less than 6 mm; A limiting plate (4) is provided on the inner side of the middle of the V-shaped portion (1); the limiting plate (4) is parallel to the straight line where the center line of the extension portion (2) is located, and the limiting plate (4) is perpendicular to the plane where the center line of the V-shaped portion (1) is located.

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