JP7020459B2 - Support material, refractory structure and method for manufacturing refractory structure - Google Patents

Description

The present invention is a technique relating to a refractory structure having a structure in which an amorphous refractory is adhered to a support structure such as a pipe, and the amorphous refractory is supported and reinforced by the support material. In particular, the present invention is a technique characterized in the composition of the support material.

Refractory bricks and amorphous refractories are used for heat resistance in heating furnaces and heat equipment that perform heat treatment in steelworks and the like.
For example, a skid in a heating furnace constitutes a refractory structure by providing an amorphous refractory so as to cover the outer periphery of a pipe (support structure) through which cooling water flows. Then, the pipe (support structure) is protected from heat by the refractory material located on the outer peripheral side.
In the conventional refractory structure, a metal support material is projected from the surface of a pipe, and the amorphous refractory material is supported by the metal support material to reinforce the amorphous refractory material. Generally, the metal support material is composed of studs, anchors, and the like, and the metal support material is fixed to the pipe surface by welding or the like.
Further, conventionally, as a support material for refractories, a method has been proposed in which a rod-shaped inorganic fiber support material is installed inside the refractory material to support the amorphous refractory material instead of the metal support material (as a support material for the refractory material). Patent Document 1). Further, a method of using a rope made of an inorganic fiber fastened to a metal fitting as a support material has also been proposed (Patent Document 2).

Japanese Unexamined Patent Publication No. 2004-2171 International Publication No. 2014/119632

In the refractory structure described in Patent Document 1, it is assumed that the rod-shaped molded body as a support material is arranged in a state where pretension is applied in the longitudinal direction of the refractory. Therefore, even if the rod-shaped molded body is applied to the pipe surface, the amount of protrusion of the support material in the thickness direction of the refractory is small. As a result, the rod-shaped molded body described in Patent Document 1 may not have sufficient bearing capacity to support the refractory. Further, when the rod-shaped molded body is provided on the outer periphery of the refractory material, the rod-shaped molded body may be infiltrated by the scale in the furnace and sufficient strength may not be maintained. Further, in the refractory structure described in Patent Document 1, in order to install the rod-shaped molded body inside the refractory material, the rod-shaped molded body is poured when the amorphous refractory material is poured to form the refractory structure. It is necessary to carry out pre-construction so that the shape of the can be maintained.

Further, in the fireproof structure described in Patent Document 2, when an inorganic fibrous rope is used as a support material, after cutting the rope, the end of the rope is crimped with a metal piece, and the metal piece is used for metal piping ( It is necessary to fix it to the support structure) by welding, which is troublesome. Further, the refractory structure described in Patent Document 2 has a structure in which a metal material having a large coefficient of thermal expansion is embedded in the refractory material in addition to the inorganic fiber. When a metal material is embedded in the refractory, the thermal stress generated inside the refractory cannot be reduced by that amount.
The present invention has been made by paying attention to the above points, and the support material can be easily embedded in an amorphous refractory without using metal fittings, and the support material can be supported in the thickness direction of the refractory. It is an object of the present invention to provide a support material capable of easily earning the amount of protrusion of the material and a refractory structure using the support material.

In order to solve the problem, one aspect of the present invention is a refractory having an amorphous refractory attached to a support structure and a support material embedded in the amorphous refractory to support the irregular refractory. A support material used for a structure, which is made of a plurality of mounting ropes made of a heat-resistant fiber rope, and a material made of a heat-resistant fiber that is attached to the mounting rope and protrudes in a direction away from the mounting rope. The gist is to include a projecting body to be configured and a string-shaped and resin connecting tool for connecting the plurality of mounting ropes.
Further, one aspect of the present invention is gist of being a refractory structure using the support material of the above aspect as the support material.
Further, one aspect of the present invention is a method for manufacturing a refractory structure using the support material of the above-mentioned aspect of the present invention, in which at least one of a mounting rope and a string-shaped connecting tool is attached to the support structure. The gist is that the formwork is placed on the outer peripheral side of the formwork and the amorphous refractory material is poured into the above-arranged formwork.

According to the aspect of the present invention, the support material can be easily embedded in the amorphous refractory without using metal fittings due to the simple configuration, and the amount of protrusion of the support material in the thickness direction of the refractory is also large. It can be easily earned and the decrease in support capacity can be suppressed.

It is a figure explaining the support material which concerns on embodiment based on this invention. It is a figure explaining the mounting example of the mounting rope. It is a figure explaining the spiral shape of a protrusion. It is a figure which shows another example of the protrusion. It is a schematic diagram explaining the support material which concerns on embodiment based on this invention. It is a figure explaining the case which is composed of the material which vaporizes the core material of a rope by high heat. It is a figure explaining the case where the yarn of a rope is covered with the material which vaporizes by high heat. It is a figure explaining the refractory structure which concerns on embodiment based on this invention. It is a figure which shows the mounting example to the support material for a pipe. It is a figure explaining the modification 1. FIG. It is a figure explaining the modification 2. FIG. It is a figure which shows the use example of the modification 2 (the protrusion is omitted), (a) shows the state before flowing the amorphous refractory, and (b) shows the state when the amorphous refractory is poured. .. An example of mounting and evaluation of the mounting rope in the embodiment will be described. It is a figure explaining the test of an Example. It is a figure which shows the test piece shape of a projecting body, and shows the case where (a) is a ring shape, and (b)-(d) is a spiral shape.

Next, an embodiment of the present invention will be described with reference to the drawings.
Here, the drawings are schematic, and the size and length ratio of each part are different from the actual ones. Further, the embodiments shown below exemplify a configuration for embodying the technical idea of the present invention, and the technical idea of the present invention describes the material, shape, structure, etc. of the constituent parts as follows. It is not specific to things. The technical idea of the present invention may be modified in various ways within the technical scope specified by the claims described in the claims.
The refractory structure includes a support structure made of a metal pipe or the like, an amorphous refractory 5 adhered to the surface of the support structure, and the amorphous refractory 5 embedded in the amorphous refractory 5. It has a support material 1 that supports and reinforces (see FIG. 8).
In the following description, a skid of a heating furnace is assumed as a refractory structure, and a case where the support structure is made of metal pipes will be described as an example. The refractory structure of the present embodiment is not limited to the skid. The refractory structure may have a plate shape or the like.

(Support material 1)
As shown in FIG. 1, the support material 1 for the refractory structure of the present embodiment includes a plurality of mounting ropes 2, a plurality of protrusions 3 provided on each mounting rope 2, and a plurality of mounting ropes. A connecting tool 4 for connecting the rope 2 is provided. Here, in FIGS. 1, 5, and the like, the black circles indicate the knots of the rope and the connecting tool 4. The knot is not particularly limited, and the knot may be formed by a known knot such as an overhand knot, an armor knot, a main knot, or a granny knot.

<Mounting rope 2>
The mounting rope 2 is composed of a heat resistant fiber rope.
The length of the mounting rope 2 of the present embodiment is such that it can be wound around the pipe 10 which is a support structure.
The mounting rope 2 may be composed of a plurality of heat-resistant fiber ropes. In this case, by twisting the ends of a plurality of heat-resistant fiber ropes together, the length of the rope 2 for mounting is adjusted so that it can be wound around the support structure.
As shown in FIG. 2, for example, the attachment rope 2 is attached to the pipe 10 by winding the other end 2b side a plurality of turns with respect to the one end 2a side of the rope wound in the circumferential direction of the pipe 10. In this case, the winding is preferably 3 laps or more. The attachment of the attachment rope 2 to the pipe 10 is not limited to this. Both ends of the mounting rope 2 may be tied or twisted for mounting. Further, a part of the mounting rope 2 may be adhered to the pipe 10 with an adhesive, or the ends of the mounting rope 2 may be connected to each other with a resin binding tool. However, it should be connected with something other than a metal binding tool. In FIG. 2, the projecting body 3 attached to the attachment rope 2 is omitted.

<Protruding body 3>
The protrusion 3 is made of a heat-resistant fiber material. The projecting body 3 of the present embodiment will be described by exemplifying a case where the projecting body 3 is made of a heat-resistant rope. The protrusion 3 may be a thick strip made of a heat-resistant fiber material, but is preferably having a rigidity of a predetermined value or higher, such as a rope.
Each projecting body 3 has a projecting portion that is attached to the mounting rope 2 and projects in a direction away from the mounting rope 2.

As shown in FIG. 3, the projecting body 3 of the present embodiment has at least a state in which the outer periphery of the mounting rope 2 has play and is spirally arranged along the extending direction of the mounting rope 2. Both ends 3a and 3b are fixed to the mounting rope 2. FIG. 3 illustrates a case where the tip portions of the end portions 3a and 3b are further extended outward in the radial direction of the mounting rope 2.
The ends 3a and 3b of the projecting body 3 are fixed to the mounting rope 2 by, for example, an adhesive. The end portion of the projecting body 3 may be fixed by tying it to the mounting rope 2, or the end portion of the projecting body 3 may be fixed by a resin binding tool. Examples of the resin binding tool include a binding band and a ring-shaped clip. Further, the projecting body 3 may be fixed to the mounting rope 2 by melting and applying a resin that vaporizes with high heat.

Here, in the present specification, "vaporizing with high heat" means vaporizing in a high temperature atmosphere in which a refractory structure is used. The "high heat" referred to here is a temperature higher than normal temperature and lower than the high temperature atmosphere in which the refractory structure is used. For example, high temperature means 300 ° C. or higher. The high fever may be 100 ° C or 200 ° C. Vaporization at high temperature means that the resin (solid material) does not vaporize before the refractory structure is heated in the heating furnace or heating equipment, but vaporizes in the high temperature atmosphere in the heating furnace or heating equipment. Point to. Here, the solid material that vaporizes with high heat is not limited to the resin, and may be another material.
Examples of the resin that vaporizes with high heat include synthetic resins such as epoxy resins, phenol resins, and vinyl acetate resins, and natural resins.

As shown in FIG. 3, the projecting body 3 of the present embodiment is in a state in which the spiral shape is composed of three or more turns and the central axis of the spiral shape is eccentric outward in the radial direction of the mounting rope 2. Therefore, one or more parts of the intermediate position 3c of the projecting body 3 are also fixed to the mounting rope 2. The fixing method may be performed by melting and applying a resin binding tool, an adhesive, or a resin that vaporizes with high heat as described above.
By fixing the spiral intermediate position 3c as well, it becomes possible to more reliably increase the amount of protrusion of the projecting body 3, and the rigidity of the projecting portion formed by the projecting body 3 is also improved.
As shown in FIG. 1, for example, a plurality of projecting bodies 3 are attached to the mounting rope 2 at intervals along the axis of the mounting rope 2. The projecting directions of the projecting bodies 3 with respect to the mounting rope 2 may be in the same direction or may be disjointed.

<Modification example of projecting body 3>
As shown in FIG. 4, the ropes constituting the projecting body 3 are attached with the ends 3a and 3b as a structure in which the axis of the rope is held in a shape having an overhanging portion extending in the diameter direction of the rope. It may be fixed to the rope 2. That is, the overhanging shape of the rope constituting the projecting body is not particularly limited, but the shape can be easily maintained by using the spiral shape as described above. In order to maintain the shape, a known method such as curing with a curing material may be used to increase the rigidity of the shape.
The overhang amount H (see FIG. 3) from the mounting rope 2 is designed to be, for example, 3 times or more and 10 times or less the diameter of the take-out rope.

<Connector 4>
The connector 4 is a string-shaped part and is made of resin. The connector 4 may be a string made of heat-resistant fiber, or may be made of a resin that vaporizes with high heat. The string shape means that the strength is lower than that of the mounting rope 2 and it is easy to bend. Further, the string shape of the present embodiment also includes a band shape. The diameter of the connecting tool 4 is not particularly limited, but is preferably smaller than that of the heat-resistant fiber rope so that it can be easily tied, for example.
The connector 4 employs a material having a strength that does not cut against the amorphous refractory material 5 to be poured.

As shown in FIG. 1, the connecting tool 4 having a string shape is fixed to the connecting tool 4 by sequentially fixing the ends of the mounting ropes 2 at intervals along the extending direction of the connecting tool 4. Connects a plurality of mounting ropes 2. FIG. 1 illustrates a case where a plurality of mounting ropes 2 are configured so that the extending directions are the same with respect to the connecting tool 4, but the present invention is not limited to this. As shown in FIG. 5, each of the plurality of mounting ropes 2 may be configured to extend to the opposite side alternately with respect to the connecting tool 4. Further, the intermediate position (for example, the central portion position) of each mounting rope 2 in the extending direction may be fixed to the connecting tool 4. From the viewpoint of ease of handling, it is preferable to fix each end of each mounting rope 2 to the connecting tool 4.

FIG. 1 illustrates an example in which a knot is formed at both ends of the connector 4. When attached to the support structure, the connector 4 may be fixed by connecting its end to, for example, a protrusion such as a metal rod (not shown).
Further, two or more connecting tools 4 may be provided. In this case, for example, in a state where a plurality of mounting ropes 2 are arranged in parallel in one direction, one connecting tool 4 connects one end side of each mounting rope 2, and each of the two connecting tools 4 is connected. Arrange and connect so as to straddle the central position of the mounting rope 2. Each connecting tool 4 may be arranged in a direction intersecting a plurality of parallel mounting ropes 2.

<Heat-resistant fiber rope>
The heat-resistant fiber rope constituting the mounting rope 2 and the projecting body 3 is composed of a plurality of inorganic fibers. The inorganic fiber may be composed of, for example, glass wool, rock wool, slag wool, asbestos, ceramic fiber, alumina fiber, silica fiber, carbon fiber and the like. Considering the use in a heating furnace, alumina fibers and silica fibers are preferable.
The heat-resistant fiber rope is composed of, for example, twisting a plurality of inorganic fibers to form a yarn, and twisting the plurality of yarns to form a rope. The core material may be arranged in the central portion. The structure of the heat-resistant fiber rope is not particularly limited.

<Modification example of heat-resistant fiber rope>
Here, when the heat-resistant fiber rope constituting the mounting rope 2 and the projecting body 3 is composed of the core material 30 and a plurality of yarns 31, as shown in FIG. 6A, the core material 30 is heated at high heat. It is preferable to use a resin that vaporizes.
Further, as shown in FIG. 7A, one or more of the yarns 31 constituting the heat-resistant fiber rope may be coated with the resin 31b that vaporizes with high heat. FIG. 7A shows an example in which all the yarns 31 are covered with the resin 31b, but only some of the yarns 31 may be provided with the resin 31b. Further, a part of the yarn 31 having the core material 30 may be covered with a resin that vaporizes with high heat.

In this case, the refractory structure of the present embodiment is provided in a heating furnace (heat atmosphere), and in an environment where thermal stress is applied to the refractory structure, the portions of the resins 30 and 31b that form a rope and vaporize with high heat. Vaporizes to form voids in the rope.
When the core material 30 is a resin that vaporizes with high heat, a cavity is formed in the central portion of the rope by vaporizing the resin constituting the core material 30 as shown in FIG. 6 (b). As a result, when the yarn 31 of the rope is thermally expanded, the yarn 31 on the outer peripheral side is thermally expanded toward the central cavity. As a result, the thermal stress on the refractory 5 generated by the expansion of the rope is relaxed (decreased). As a result, the life of the skid is extended.
Similarly, when each yarn 31 is coated with the resin 31b that is vaporized at a high temperature as shown in FIG. 7 (a), the outer periphery of the yarn body 31a coated with the resin 31b by vaporization is covered as shown in FIG. 7 (b). There is a gap. That is, as a result of the formation of voids in the rope, the thermal stress on the refractory 5 due to the expansion of the rope is relaxed, which leads to a longer life of the skid.

<Example of manufacturing method of refractory structure>
In the support material 1 having the above configuration, as shown in FIG. 8, each mounting rope 2 is arranged with a space in the axial direction of the pipe 10 with respect to the pipe 10 which is a support structure, and each mounting rope 2 is arranged. Wrap in the circumferential direction. Thereby, a plurality of attachment ropes 2 can be attached to the pipe 10 (see FIG. 9). The mounting rope 2 may be wound around a plurality of spirals along the surface of the pipe 10.
The end of each mounting rope 2 wound around the pipe 10 may be fixed with an adhesive or may be fixed with a resin binding tool. The binding tool may be a material composed of a high heat and vaporizable resin. Further, a long projecting body 3 may be provided on the end side of the mounting rope 2, and the projecting body 3 may be wound around the pipe 10 and tied to be attached.

Although FIG. 8 illustrates a state in which one support member 1 is attached to the pipe 10, a plurality of support members 1 may be attached to the pipe 10.
In this state, the projecting body 3 attached to the mounting rope 2 projects from the surface of the pipe 10.
Further, the distance between the adjacent mounting ropes 2 is regulated by the string-shaped connecting tool 4. At this time, even if the adjacent attachment ropes 2 are attached to the pipe 10 so that the connector 4 is not loosened, the adjacent attachment ropes 2 are attached to the pipe 10 with the connector 4 loose. Is also good.

Here, the string-shaped connecting tool 4 is in a state of extending along the axial direction of the pipe 10. It is preferable that the upper end portion of the connector 4 is fixed to the pipe 10. Fixing is done by adhesion or other means. Further, it is preferable that the lower end portion of the connector 4 is also fixed to the pipe 10.
Before and after mounting the plurality of mounting ropes 2 to the pipe 10, the work of installing the formwork 50 on the outer periphery of the pipe 10 is performed.
After that, the amorphous refractory material 5 which is in a fluid state at room temperature is poured into the mold 50 (FIG. 8).

At this time, if the fixing force of the mounting rope 2 to the pipe 10 is weak or the amorphous refractory material 5 is poured strongly, and if the connecting tool 4 is not provided, the amorphous refractory material 5 is poured. , There was a risk that the fixing position of the mounting rope 2 would shift more than necessary.
On the other hand, by providing the connecting tool 4, the distance between the mounting ropes 2 adjacent to each other in the flow direction of the amorphous refractory material 5 is regulated by the connecting tool 4, so that the irregular refractory material 5 can be poured. It is possible to prevent each mounting rope 2 from changing in the axial direction of the pipe 10.
When the pouring of the amorphous refractory material 5 is completed as described above, curing is performed and it is determined that the amorphous refractory material 5 has solidified, and then the mold 50 is removed to form a skid as a refractory structure.

<Another example of manufacturing method of refractory structure>
(1) Modification 1
Next, a modification 1 of the method for manufacturing a refractory structure will be described.
In the above example, the case where each mounting rope 2 in the support material 1 is wound around the pipe 10 and fixed to the pipe 10 is illustrated. On the other hand, a part of the mounting rope 2 may not be wound around the pipe 10 (see FIG. 10). Since the mounting rope 2 is connected to the connecting tool 4, the mounting rope 2 that was not wound around the pipe 10 extends along the flow of the amorphous refractory material 5 in a state of being arranged near the pipe 10. It will be in a state of flowing as if it were present, and will be in a state of being buried in the amorphous refractory material 5. Normally, the flow of pouring of the amorphous refractory material 5 is formed in the direction along the axial direction of the pipe 10, so that the mounting rope 2 not wound around the pipe 10 is arranged along the pipe 10. It will be buried in the amorphous refractory material 5.
This modification is a method for manufacturing a refractory structure suitable for cases where it is difficult to reach some of the pipe 10 positions such as the back side.

(2) Modification example 2
Next, a modification 2 of the method for manufacturing a refractory structure will be described.
In the above example, the case where the mounting rope 2 is wound around the pipe 10 and mounted is exemplified. On the other hand, in the modification 2, the string-shaped connecting tool 4 is fixed to the upper part of the piping 10 and connected to the connecting tool 4 as shown in FIG. 11 without winding the mounting rope 2 around the pipe 10. A refractory structure is manufactured by pouring an irregular refractory material 5 into a state in which the mounting rope 2 is hung along the axial direction of the pipe 10 by its own weight.

In this case, each mounting rope 2 constituting the support member 1 is configured to, for example, fix its end portion to the connecting tool 4. The length of the string-shaped connecting tool 4 is preferably longer than the entire circumference of the pipe 10. The connector 4 is fixed to the pipe 10 in a state of being hung once or twice or more along the circumferential direction with respect to the upper part of the pipe 10. As a result, each mounting rope 2 extends along the pipe 10, and a plurality of mounting ropes 2 are lined up along the circumferential direction. When the amorphous refractory material 5 is poured from above in this state, the mounting rope 2 flows along the flow, so that the mounting rope 2 provided with the plurality of protrusions 3 is arranged along the pipe 10. In this state, the support material 1 is embedded in the amorphous refractory material 5. For example, as shown in FIG. 12A, the connecting tool 4 is attached to the upper end of the pipe 10 along the circumferential direction, and each attaching rope 2 is hung downward from the connecting tool 4 by its own weight. In this state, when the amorphous refractory material 5 is poured from above, the mounting ropes 2 are automatically arranged in the direction along the flow direction X as shown in FIG. 12 (b), and the pipe 10 is arranged. Mounting ropes are automatically placed around it.
In FIG. 12, the projecting body 3 is omitted for easy viewing.
In the case of this modification 2, it is not necessary to individually wind each mounting rope 2 around the pipe 10 and mount the rope 2. Therefore, even if it is difficult to reach the outer periphery of the pipe 10, it is possible to provide the amorphous refractory material 5 with the mounting rope 2 provided with the projecting body 3 arranged around the pipe 10. ..

The concept shown in FIG. 13 shows how much load the heat-resistant fiber rope can be held by simply winding the heat-resistant fiber rope made of alumina fiber around the pipe 10 and simply winding both ends of the mounting rope 2. The survey was conducted by the method shown in the figure.
In this test, a steel pipe 10 having an outer diameter of Φ100 mm was used, and a mounting rope 2 made of an alumina fiber having a diameter of Φ5 mm was wound around the outer circumference of the pipe 10. At the upper position of the pipe 10, the mounting rope 2 was fixed by winding one end of the mounting rope 2 around the other end of the rope in a three-circle spiral. Then, a load was applied to the rope 2 at the lower position of the pipe 10 on the opposite side of the wound portion, and the holding force of the mounting rope 2 made of the heat-resistant fiber rope was measured.

In this test, a load of up to 30 kg was applied, but the wound part did not slip or unravel. Further, as a result of changing the number of turns to 2 and performing the test again, the wound portion with 25 kg was unwound, and the attachment rope 2 fell from the pipe 10. From this, it was confirmed that sufficient holding power to support the refractory 5 can be obtained only by changing the number of windings according to the applied load.
In addition, in order to confirm the shape retention of the heat-resistant fiber rope, a survey was conducted using the apparatus shown in FIG.
In the test, a refractory material having a fluidity of about 0.7 kg is filled inside the acrylic tube, and a test piece (protruding body 3) is installed at a lower portion of 300 mm. After that, the partition plate that closed the lower end opening of the acrylic tube is removed, and the refractory material is dropped toward the test piece to bring it into contact. The amount of deformation on the tip side of the test piece that occurred at this time was compared.

FIG. 15 shows the shape of the test piece (protruding body 3) used in this test.
FIG. 15A shows a case where the projecting body 3 is formed into a ring shape and one end side is fixed. FIG. 15B shows a case where the projecting body 3 is formed into a spiral shape, the shaft is arranged parallel to the mounting surface, and one end thereof is fixed. FIG. 15C shows a case where the projecting body 3 is formed into a spiral shape, the shaft is arranged parallel to the mounting surface, and the protrusion 3 is fixed at the center position on one end side. FIG. 15D shows a case where the projecting body 3 has a spiral shape, the shaft is arranged parallel to the mounting surface, and a resin rod is interposed in the central portion.
In the above four test piece shapes, measurements were carried out under three conditions: no curing material was applied to the test pieces, vinyl acetate resin was applied, and epoxy resin was placed inside the heat-resistant fiber rope.

As a result, in the cases of FIGS. 15A to 15C, the test piece without the curing material was deformed by 20 mm or more. In comparison, the test piece coated with the vinyl acetate resin was deformed by only about 10 mm. From this, it was confirmed that the shape retention was improved by applying the resin to the surface of the heat-resistant fiber rope.
Further, as shown in FIG. 15D, when the epoxy resin rod was placed in the center of the test piece, the test piece was not deformed at all.
From the above, it was confirmed that the deformation of the projecting body 3 can be suppressed by fixing the solid resin material inside the heat-resistant fiber rope as compared with the application of the curing material.

1 Support material 2 Mounting rope 3 Protruding body 4 Connector 5 Amorphous refractory material 10 Piping (support structure)
50 Formwork X Flow direction

Claims (9)

The support material used for a refractory structure having an amorphous refractory material adhered to the support structure and a support material embedded in the amorphous refractory material to support the amorphous refractory material.
Multiple mounting ropes made of heat-resistant fiber ropes,
A projecting body that is attached to the mounting rope and projects in a direction away from the mounting rope and is made of a heat-resistant fiber material.
A string-shaped and resin connecting tool for connecting the above-mentioned multiple mounting ropes,
A support material characterized by being provided with. The protrusion is made of a heat-resistant rope, and the protrusion has a play around the outer circumference of the mounting rope and is spirally arranged along the extending direction of the mounting rope. The support material according to claim 1, wherein the support material is attached to a rope. The above-mentioned projecting body is composed of a heat-resistant fiber rope.
The mounting rope and the heat-resistant fiber rope constituting the protrusion are composed of a core material in a central portion and a yarn composed of heat-resistant fibers, and the core material is a high-temperature material in which the refractory structure is used. The support material according to claim 1 or 2, wherein the support material is composed of a solid material that vaporizes in an atmosphere. The above-mentioned projecting body is composed of a heat-resistant fiber rope.
The mounting rope and the heat-resistant fiber rope constituting the protrusion have a plurality of yarns composed of heat-resistant fibers, and at least one of the plurality of yarns is in a high-temperature atmosphere in which the refractory structure is used. The support material according to any one of claims 1 to 3, wherein the support material is coated with a solid material to be vaporized. A refractory structure having the support material according to any one of claims 1 to 4. The support structure is a tube and
The refractory structure according to claim 5, wherein the plurality of mounting ropes are mounted in a state of being wound around the outer periphery of the support structure. The method for manufacturing a refractory structure according to claim 5.
At least one of the rope for attaching the support material and the string-shaped connector is attached to the support structure, a formwork is arranged on the outer peripheral side thereof, and an amorphous refractory material is poured into the arranged formwork. A method for manufacturing a refractory structure characterized by. The support structure is a tube and
The pouring direction of the amorphous refractory is set to the direction along the axial direction of the support structure.
The string-shaped connecting tool is attached to the support structure with its extending direction oriented along the pouring direction of the amorphous refractory, and the plurality of attachment ropes are attached to the support structure, respectively. The method for manufacturing a refractory structure according to claim 7, wherein the amorphous refractory is poured after being installed in a state of being wrapped around the outer periphery of the object. The string-shaped connecting tool was fixed to the portion of the supporting structure located on the upstream side in the pouring direction of the amorphous refractory, and the plurality of mounting ropes were hung from the connecting tool by its own weight. The method for manufacturing a refractory structure according to claim 7, wherein the amorphous refractory is poured later.

Images