JPH0651798U - Anchor for ultra-thin lining - Google Patents

Abstract

(57) [Abstract] [Purpose] To obtain an anchor for ultra-thin lining of wear-resistant and fire-resistant material that has a simple shape and can be easily arranged according to the shape of the lining object, and that provides a strong bearing force. . [Structure] A metal thin plate 4 having a vertical cross section that is arcuate and has a convex shape on one side and a concave shape on the other side, and one or more cuts are formed in the thin plate. Lack 5,
Alternatively, one or more kinds of through holes, protrusions, and cut-and-raised parts are provided, and one edge portion thereof is welded (w) to the casing 6 and a plurality of them are arranged and fixed at regular intervals, and both sides of the thin metal plate are fire-resistant. Support object 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly relates to an anchor suitable for supporting an ultra-thin lining of wear-resisting / refractory material in a petroleum refining apparatus, a steelmaking facility and the like.

[0002]

[Prior art]

 Conventionally, cyclones for collecting catalysts in reaction towers and regeneration towers of petroleum refining equipment, connecting pipes connecting reaction towers and regeneration towers, or dust removal or raw materials for petrochemical-related equipment, steelmaking-related equipment, material collection cyclones, etc. Is lined with wear resistant and fire resistant materials. In that case, a hexagonal mesh anchor (HEX AGONAL MESH: hereinafter referred to as a hex mesh) having a height of about 19 to 25 mm as shown in Fig. 4 is used as an anchor for supporting the wear resistant and fire resistant material.

This hex mesh is, for example, a mesh formed by connecting a plurality of zigzag-shaped strips 1 formed by forming holes 1a and claws 1b in a stainless steel strip, and using this as an anchor. As shown by w in Fig. 4 (b), it is appropriately welded and fixed to the cyclone or connecting pipe casing, and castable refractory material is sprayed or hammered into the mesh to wear and wear-resistant material lining. And

However, the hex mesh having the complicated shape requires cutting and bending according to the shape of the lining object. For example, in the case of a cyclone, the conical part is usually connected to the cylindrical part, but it is necessary to cut the mesh according to that shape and connect the cut parts by welding, It is necessary to bend the mesh strip 1 in the direction perpendicular to the plate thickness direction (width direction of the strip 1) in accordance with the curved portion that moves to, and it is very difficult to process these, and a lot of man-hours are required. Was required. In addition, since the shape of the mesh is naturally broken at the part where the mesh is cut and joined together, skill is required for the joining work, and in addition to the high material cost, the lining cost using the hex mesh is low. It had the drawback of being very expensive.

On the other hand, as shown in FIG. 5, the lower edge of the support metal fitting 2 having both ends 2a and 2b bent in mutually opposite directions is welded to the casing (w is a welded portion), and an appropriate gap is provided. It has been proposed that a large number of them be arranged to be used as lining anchors. However, this anchor is unstable in shape and is susceptible to thermal strain. Furthermore, there are drawbacks such as a small mechanical bearing capacity as an anchor.

In order to solve these problems, the applicant of the present invention has previously proposed a wear-resistant / fire-resistant material lining anchor composed of a metal cylinder (see Japanese Patent Publication No. 62-7473). According to this, it is extremely easy to attach the anchor that is placed and fixed to the casing according to the shape of the lining object, and the mechanical strength as the anchor is sufficiently obtained, which is extremely resistant to thermal strain. It is stable.

[0007]

[Problems to be solved by the device]

 By the way, generally, about 19 to 25 mm is standard as a thin lining, but recently, a thinner lining, for example, 9 to 16 mm, has been required.

In order to meet the above-mentioned demands, the present invention aims to provide an anchor for a wear-resistant / refractory ultra-thin lining, which has a simpler shape and can obtain a strong supporting force.

[0009]

[Means for Solving the Problems]

 The anchor according to the present invention is made of a thin metal plate formed so that one side is convex and the other side is concave like a dogleg shape in a vertical cross section. One or more kinds of a plurality of through holes, notches, protrusions, and cut-and-raised parts are formed, and one edge portion thereof is welded to the casing and a plurality of them are arranged and fixed at regular intervals.

[0010]

[Operation] The anchor thus installed can stably support the refractory material that fills both sides of the thin metal plate, and since each anchor is welded to the casing, the shape of the lining object Can be easily arranged according to.

[0011]

【Example】

 Hereinafter, embodiments will be described in detail with reference to the drawings. FIG. 1 shows a thin plate anchor according to an embodiment of the present invention, in which 4 is a thin plate made of stainless steel having a longitudinal cross section of an arc shape, for example, a thickness of 1.6 to 2.0 mm, and a height thereof is, for example. It is 15 mm and has a notch 5 at the lower edge. The thin plate anchor having such a shape can be manufactured very easily and at low cost by press-molding a commercially available stainless plate.

When the thin plate 4 is used as an anchor, as shown in FIG. 2, the lower edge portion is appropriately welded and fixed to the casing 6 of the lining object as shown by w. In this way, a large number of thin plates 4 are arranged and fixed at regular intervals or in a staggered manner over the entire required range of the casing 6. Next, both sides of the thin plate 4 are filled with a refractory material 7 and solidified.

In this embodiment, the refractory materials 7 filling both sides of the thin plate 4 are connected to each other via the notches 5, and the refractory materials are fixed by entering inside the arc. The whole thing is firmly supported by the thin plate anchor.

According to the present embodiment, only the individual thin plate anchors are welded to the casing, and the cutting and connecting processes unlike the hex mesh are not required. Therefore, no special skill is required and no work is required. It's extremely easy.

FIG. 3 shows another embodiment of the present invention. Here, a thin plate 8 having a V-shaped vertical cross section is formed, and a square hole 9 is formed in the center thereof. Also in the case of this embodiment, the material cost is low, the attachment to the casing is easy, and the lined refractory is stably supported.

Although the notch 5 and the square hole 9 are shown in the embodiment, a protrusion, a cut-and-raised part or the like may be provided alone or in combination in order to enhance the anchor effect.

[0017]

[Effect of device]

 As described above, according to the present invention, the material cost is low, and it is extremely easy to attach the anchor that is placed and fixed to the casing according to the shape of the lining object, and therefore the conventional hex is used. Compared with the mesh anchor, the total cost can be significantly reduced, and it has remarkable effects such as simplification of construction design, shortening of construction period, and facilitation of repair. Moreover, mechanical strength as an anchor is sufficiently obtained, and it is stable against thermal strain.

[Brief description of drawings]

FIG. 1 is a perspective view of a thin plate anchor according to an embodiment of the present invention.

FIG. 2 is a sectional view of a lining portion using the thin plate anchor of the embodiment.

FIG. 3 is a perspective view of a thin plate anchor according to another embodiment of the present invention.

FIG. 4 is a view showing a conventional hex mesh anchor.

FIG. 5 is a perspective view of another conventional example.

[Explanation of symbols]

4, 8 ... Thin plate, 5 ... Notch, 6 ... Casing, 7 ... Refractory, 9 ... Square hole.

Claims (2)

[Scope of utility model registration request] 1. A metal thin plate having a vertical cross section that is arcuate and has a convex shape on one side and a concave shape on the other side, the one edge of which is welded to a casing. An anchor for wear-resistant / refractory ultra-thin linings, which supports and holds a refractory that fills both sides of the metal thin plate by fixing and fixing a plurality of them at regular intervals. 2. A thin metal plate formed such that one surface is convex and the other surface is concave, and one or more through holes, notches, protrusions, cut and raised one or more kinds are provided. An anchor for an ultra-thin lining of wear-resistant and fire-resistant material according to claim 1.