Heat-resistant storage container

Abstract

To provide a heat-resistant storage container which has strength required for the heat-resistant storage container represented by a molten metal holding furnace or the like, is light in weight compared with a heat-resistant storage container composed of a refractory block, a refractory brick or the like, is easily constructed, and is excellent in heat insulation performance.SOLUTION: A heat-resistant storage container is composed of a bottom wall and a peripheral wall formed by rising from a peripheral edge side of the bottom wall, and at least the peripheral wall is constructed by continuously arranging a plurality of hollow heat-resistant cylindrical bodies extending in a longitudinal direction in a lateral direction orthogonal to the longitudinal direction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a heat-resistant container, and more particularly to a heat-resistant container suitable for containing high-temperature molten metal such as molten aluminum, for example, a molten metal container such as a molten metal holding furnace. [Background technology]

[0002] Heat-resistant containers, such as molten metal containers for storing high-temperature molten metal such as molten aluminum, are typically constructed with a bottom wall and a peripheral wall extending from the peripheral edge of the bottom wall, and various proposals have been made for such containers.

[0003] For example, Patent Documents 1 and 2 propose a molten metal storage container that can prevent or inhibit the occurrence of such problems as the high-temperature molten metal seeping into cracks in the refractory layer, resulting in molten metal leakage, in the case of a molten metal storage container that uses, as the refractory layer that comes into contact with the stored high-temperature molten metal, fixed refractory precast blocks (fired or unfired), insulating firebricks, firebricks (fired, unfired, electroformed), etc., or amorphous refractory fire mortar (thermosetting, air-setting, hydraulic), castables, lightweight castables, etc., where the high-temperature molten metal penetrates cracks in the refractory layer and causes molten metal leakage, while also inhibiting heat radiation from the furnace body, which is the heat-resistant storage container. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6918377 [Patent Document 2] Patent No. 7084061 Summary of the Invention [Problem to be solved by the invention]

[0005] The object of this invention is to propose a heat-resistant container that has the strength required for heat-resistant containers such as molten metal holding furnaces, and is lighter and easier to construct than heat-resistant containers made from fire-resistant blocks, fire-resistant bricks, etc., and has excellent insulating properties. [Means for solving the problem]

[0006] The present invention solves the above-mentioned problem by constructing the bottom wall and / or peripheral wall that rises from the peripheral edge of the bottom wall of a heat-resistant storage container, such as a molten metal holding furnace, by connecting multiple hollow heat-resistant cylindrical bodies extending in the longitudinal direction in a horizontal direction perpendicular to the longitudinal direction.

[0007] An example of such an embodiment of the present invention is as follows. [1] A heat-resistant container comprising a bottom wall and a peripheral wall formed upright from a peripheral edge of the bottom wall, At least the peripheral wall is constructed by a plurality of heat-resistant hollow cylindrical bodies extending in the longitudinal direction and connected in a lateral direction perpendicular to the longitudinal direction. Heat-resistant storage container.

[0008] [2] A heat-resistant storage container [1] in which heat-resistant plate-like bodies are arranged on the side of the heat-resistant cylindrical bodies arranged in a row in the horizontal direction, which corresponds to the inside of the heat-resistant storage container, and on the side of the heat-resistant storage container, which corresponds to the outside, to form the inner wall surface and the outer wall surface of the peripheral wall.

[0009] [3] A heat-resistant storage container [2] in which a heat insulating material is filled in the gap within the peripheral wall, which is the gap between the inner peripheral wall surface and the outer peripheral wall surface made of the heat-resistant plate-like body, outside the heat-resistant cylindrical body arranged in a row in the horizontal direction.

[0010] [4] The heat-resistant container according to [1], [2] or [3], wherein a void inside the heat-resistant cylindrical body is filled with a heat insulating material.

[0011] [5] The heat-resistant storage container according to [1], [2], [3] or [4], wherein the bottom wall is constructed by connecting a plurality of longitudinally extending hollow heat-resistant cylindrical bodies in a horizontal direction perpendicular to the longitudinal direction. [Effects of the Invention]

[0012] According to this invention, it is possible to provide a heat-resistant storage container that has the strength required for heat-resistant storage containers such as molten metal holding furnaces, and is lightweight and easy to construct compared to heat-resistant storage containers made from fire-resistant blocks, fire-resistant bricks, etc., and has excellent insulation performance and is easily adaptable to thermal expansion and contraction due to temperature changes, making it highly durable.

[0013] The heat-resistant container of this invention has a peripheral wall, a bottom wall, or both a bottom wall and a peripheral wall, constructed by connecting a plurality of longitudinally extending hollow cylindrical bodies in a horizontal direction perpendicular to the longitudinal direction. Therefore, there is no need to mold the entire heat-resistant container, such as a molten metal holding furnace, using a mold, and construction is easy. Furthermore, because it is constructed using longitudinally extending hollow cylindrical bodies, it is lightweight, which also makes it easy to construct a heat-resistant container.

[0014] Because it can be constructed easily, it can be manufactured without requiring any special skilled techniques, and it is possible to provide a heat-resistant container that can be easily manufactured by people in regions and countries where there is not much proficiency in the technology to manufacture heat-resistant containers such as molten metal holding furnaces. [Brief explanation of the drawings]

[0015] [Figure 1] 1A and 1B are diagrams illustrating a heat-resistant container according to an embodiment of the present invention, in which FIG. 1A is a plan view and FIG. 1B is a front view. [Figure 2]5A and 5B are diagrams illustrating a heat-resistant container according to another embodiment of the present invention, in which (a) is a plan view and (b) is a front view. [Figure 3] 3A is a plan view with some parts omitted, illustrating an example of the internal structure of the peripheral wall of the heat-resistant container shown in FIG. 2; FIG. 3B is a plan view with some parts omitted, illustrating another example of the internal structure of the peripheral wall of the heat-resistant container shown in FIG. 2; DETAILED DESCRIPTION OF THE INVENTION

[0016] An embodiment of the present invention will be described with reference to the accompanying drawings.

[0017] FIG. 1 is a diagram illustrating a heat-resistant storage container 1 according to one embodiment of the present invention, and FIG. 2 is a diagram illustrating a heat-resistant storage container 11 according to another embodiment of the present invention, where FIGS. 1(a) and 2(a) are plan views, and FIGS. 1(b) and 2(b) are front views.

[0018] The heat-resistant storage container 1 (FIG. 1) and the heat-resistant storage container 11 (FIG. 2) are storage containers used to store high-temperature molten metal such as high-temperature molten aluminum. For example, the heat-resistant storage containers 1 and 11 can be used in a molten metal storage furnace such as a molten aluminum storage furnace.

[0019] The heat-resistant container 1 of the embodiment shown in Fig. 1 is composed of a bottom wall 2 and peripheral walls 3a, 3b, 3c, and 3d that rise from the peripheral edge of the bottom wall 2. In the embodiment shown in Fig. 1, the peripheral walls 3a, 3b, 3c, and 3d rise from the peripheral edge of the bottom wall 2 in a manner that extends vertically upward from the peripheral edge of the bottom wall 2.

[0020] In the embodiment shown in Figures 1 and 2, the bottom wall 2 is a heat-resistant plate-like body having a predetermined thickness, and a heat-resistant plate-like body that has traditionally been used in the construction of heat-resistant containers such as molten metal holding furnaces can be used.

[0021] Peripheral walls 3a, 3b, 3c, and 3d extend vertically upward from the peripheral edge of bottom wall 2, with their lower ends joined or sealed to the peripheral edge of bottom wall 2 via a heat-resistant adhesive or heat-resistant sealing material. In Figure 1, peripheral wall 3a is parallel to peripheral wall 3c, and peripheral wall 3b is parallel to peripheral wall 3d, and the vertical length of peripheral wall 3c in Figure 1(a) is shorter than the vertical length of peripheral wall 3a in Figure 1(a).

[0022] Therefore, peripheral wall 3d is composed of a portion extending parallel to peripheral wall 3b with a gap between it and peripheral wall 3b equal to the vertical length of peripheral wall 3a in Figure 1(a), a portion extending parallel to peripheral wall 3b but with a vertical length gap between it and peripheral wall 3b in Figure 1(a) that is shorter than the vertical length gap of peripheral wall 3a in Figure 1(a), and a portion extending parallel to peripheral wall 3a and peripheral wall 3c formed between them.

[0023] In addition, peripheral wall 3c is composed of a portion extending parallel to peripheral wall 3a with a gap between it and peripheral wall 3a equal to the left-right length of peripheral wall 3b in Figure 1(a), a portion extending parallel to peripheral wall 3a but with a gap between it and peripheral wall 3a equal to the left-right length of peripheral wall 3b in Figure 1(a) that is shorter than the left-right length of peripheral wall 3b in Figure 1(a), and a portion extending parallel to peripheral wall 3b and peripheral wall 3d formed between them.

[0024] In addition to the above-mentioned shape and structure shown in Figure 1(a) in plan view, heat-resistant storage containers of various structures and shapes can be constructed using a bottom wall and a peripheral wall that rises from the peripheral edge of the bottom wall, depending on the application and purpose of use of the heat-resistant storage container 1.

[0025] Furthermore, depending on the use of the heat-resistant container such as a molten metal holding furnace, the area (size) of the bottom wall 2, the shape and configuration of the bottom wall 2 in a plan view, the length (size) of the peripheral walls 3a, 3b, 3c, and 3d that rise from the peripheral edge of the bottom wall 2, etc. can be set in various ways.

[0026] As will be described later, the heat-resistant storage container 1 (Figure 1) and heat-resistant storage container 11 (Figure 2) of the present invention are characterized in that the bottom surface and / or peripheral wall of the heat-resistant storage container are constructed by multiple hollow cylindrical bodies extending in the longitudinal direction and connected together in a horizontal direction perpendicular to the longitudinal direction, and in other respects are similar in structure and shape to conventionally known heat-resistant storage containers such as molten metal holding furnaces.

[0027] Therefore, in the following, illustrations and descriptions of conventional shapes and structures such as inlet / injection sections for high-temperature liquids (e.g., high-temperature molten metal) and outlet sections that are provided in conventionally known heat-resistant storage vessels such as molten metal holding furnaces will be omitted, and the description will focus on the fact that the bottom surface and / or peripheral wall of the heat-resistant storage vessel are constructed by multiple hollow cylindrical bodies extending in the longitudinal direction and connected together in a horizontal direction perpendicular to the longitudinal direction.

[0028] In the heat-resistant container 1 shown in Figure 1, peripheral walls 3a, 3b, 3c, and 3d extending vertically upward from the peripheral edge of the bottom wall 2 are constructed by connecting multiple hollow heat-resistant cylindrical bodies 30a, etc. extending in the longitudinal direction (the up-down direction in Figure 1(b)) in a horizontal direction perpendicular to the longitudinal direction.

[0029] In the embodiment shown in FIG. 1, the peripheral wall 3a is constructed by connecting a plurality of hollow heat-resistant cylindrical bodies 32a, 33a, 33b, ·, 33d, 33e, 30a, each of which extends in the longitudinal direction (the vertical direction in FIG. 1(b)) and has a cylindrical cross section (FIG. 1(a)). The hollow heat-resistant cylindrical bodies 32a, 33a, 33b, ·, 33d, 33e, 30a are connected in a horizontal direction (the vertical direction in FIG. 1(a)) perpendicular to the longitudinal direction.

[0030] In addition, peripheral wall 3b is constructed by connecting a plurality of hollow heat-resistant cylindrical bodies 30a, 30b, 30c, 30dm..., 30j, 30k, 30l, each of which extends in the longitudinal direction (the vertical direction in Figure 1(b)) and has a cylindrical cross section (Figure 1(a)), in a horizontal direction (the left-right direction in Figures 1(a) and 1(b)) perpendicular to the longitudinal direction.

[0031] The peripheral walls 3c and 3d are constructed in the same manner (FIG. 1(a)).

[0032] Hereinafter, the hollow heat-resistant cylindrical bodies 30a, ..., 31a, ..., 32a, ..., 33a, ... which extend in the longitudinal direction, have a cylindrical cross section, and have a hollow portion 5 on the radially inner side, may be collectively referred to as heat-resistant cylindrical body 30, heat-resistant cylindrical body 31, heat-resistant cylindrical body 32, and heat-resistant cylindrical body 33, respectively.

[0033] The heat-resistant container 1 shown in FIG. 1 can be placed on a horizontal floor surface or the like via the support parts 20a, 20b, support legs 21a, 21b, etc. (FIG. 1(b)).

[0034] The embodiment shown in Figure 2 differs from the heat-resistant storage container 1 shown in Figure 1 in that heat-resistant plate-like bodies are arranged on the sides of the heat-resistant cylindrical bodies 30, 31, 32, and 33, which are arranged in a row in the horizontal direction, corresponding to the inside of the heat-resistant storage container 11, and on the sides corresponding to the outside of the heat-resistant storage container 11, to form the inner and outer wall surfaces of the peripheral wall.

[0035] Other than this, the structure is the same as that of the heat-resistant container 1 shown in FIG. 1, so the structural parts common to the heat-resistant container 1 shown in FIG. 1 are given the same reference numerals and the description thereof will be omitted.

[0036] A heat-resistant plate-like body is provided on the side of the heat-resistant cylindrical body 33 that corresponds to the inside of the heat-resistant container 11, forming an inner peripheral wall surface 8a of the peripheral wall 13a. Also, a heat-resistant plate-like body is provided on the side of the heat-resistant cylindrical body 33 that corresponds to the outside of the heat-resistant container 11, forming an outer peripheral wall surface 7a of the peripheral wall 13a.

[0037] As a result, the peripheral wall 13a of the heat-resistant container 11 is a sandwich-structured peripheral wall consisting of an inner peripheral wall surface 8a made of a heat-resistant plate-like material, a heat-resistant cylindrical body 33, and an outer peripheral wall surface 7a made of a heat-resistant plate-like material, which are arranged from the inside to the outside of the heat-resistant container 11.

[0038] A heat-resistant plate-like body is provided on the side of the cylindrical body 30 that corresponds to the inside of the heat-resistant container 11, forming an inner peripheral wall surface 8b of the peripheral wall 13b. Also, a heat-resistant plate-like body is provided on the side of the heat-resistant cylindrical body 30 that corresponds to the outside of the heat-resistant container 11, forming an outer peripheral wall surface 7b of the peripheral wall 13b.

[0039] As a result, the peripheral wall 13b of the heat-resistant container 11 is a sandwich-structured peripheral wall consisting of an inner peripheral wall surface 8b made of a heat-resistant plate-like material, a heat-resistant cylindrical body 30, and an outer peripheral wall surface 7b made of a heat-resistant plate-like material, which are arranged from the inside to the outside of the heat-resistant container 11.

[0040] The peripheral wall 13c of the heat-resistant container 11 is also a sandwich-structured peripheral wall consisting of an inner peripheral wall surface 8c made of a heat-resistant plate-like material, a heat-resistant cylindrical body 31, and an outer peripheral wall surface 7c made of a heat-resistant plate-like material, which are arranged from the inside to the outside of the heat-resistant container 11.

[0041] Similarly, the peripheral wall 13d of the heat-resistant container 11 is a sandwich-structured peripheral wall consisting of inner peripheral wall surfaces 8d1, 8d2, 8d3 made of heat-resistant plate-like materials, a heat-resistant cylindrical body 32, and outer peripheral wall surfaces 7d1, 7d2, 7d3 made of heat-resistant plate-like materials, which are arranged from the inside to the outside of the heat-resistant container 11.

[0042] The lower ends of the inner wall surface 8a, outer wall surface 7a, inner wall surface 8b, outer wall surface 7b, inner wall surface 8c, outer wall surface 7c, inner wall surfaces 8d1, 8d2, 8d3, and outer wall surfaces 7d1, 7d2, 7d3, which are made of heat-resistant plate-like bodies, can be joined or sealed to the peripheral edge of the bottom wall 2 via a heat-resistant bonding agent or heat-resistant sealing material known in this technical field, just like the lower end of the cylindrical body 4 that constitutes the hollow heat-resistant cylindrical bodies 30, 31, 32, 33.

[0043] The heat-resistant plates forming the inner peripheral wall surfaces 8a, 8b, 8c, 8d1, 8d2, and 8d3 and the outer peripheral wall surfaces 7a, 7b, 7c, 7d1, 7d2, and 7d3 may be made of a fiber-reinforced refractory material.

[0044] In this case, the fiber-reinforced refractory may be any one of alumina fiber-reinforced refractory, silica fiber-reinforced refractory, aluminum silicate fiber-reinforced refractory, glass fiber-reinforced refractory, and SiC fiber-reinforced refractory, or a combination of two or more thereof.

[0045] The heat-resistant cylindrical bodies 30, 31, 32, and 33, each consisting of a cylindrical body 4 having a hollow portion 5 on the inside in the radial direction, can have a cylindrical cross section as shown in Figures 1 and 2. Although not shown, they can also have an elliptical cross section. They can also have a polygonal cross section as shown in Figure 3. The heat-resistant cylindrical bodies 34d and 34e having a hollow portion 5 on the inside in the radial direction shown in Figure 3 are cylindrical bodies 4 having a hexagonal cross section.

[0046] The hollow heat-resistant cylindrical bodies 30, 31, 32, 33, 34d, and 34e comprising the cylindrical body 4 can be formed, for example, by mixing a monolithic refractory material such as ceramic powder with water, pouring the mixture into a mold, and drying and solidifying it. Alternatively, they can be formed by laminating a sheet made of a monolithic refractory material such as ceramics around the outer periphery of a cylindrical frame (not shown).

[0047] When heat-resistant cylindrical bodies 30, 31, 32, 33, 34d, and 34e are connected laterally to construct peripheral walls 3a, 3b, 3c, and 3d, paste-like refractory material can be filled between adjacent heat-resistant cylindrical bodies 30a and 30b, between heat-resistant cylindrical body 30b and heat-resistant cylindrical body 30c, etc. to construct peripheral walls 3a, 3b, 3c, and 3d.

[0048] In addition, when constructing the above-mentioned sandwich-structured peripheral walls 13a, 13b, 13c, and 13d, a paste-like refractory material can also be filled between the inner peripheral wall surfaces of the heat-resistant cylindrical bodies 30, 31, 32, and 33 in the heat-resistant container 11 and the outer wall surfaces of the inner peripheral wall surfaces 8a, 8b, 8c, 8d1, 8d2, and 8d3 in the heat-resistant container 11, and between the outer peripheral wall surfaces of the heat-resistant cylindrical bodies 30, 31, 32, and 33 in the heat-resistant container 11 and the inner wall surfaces of the outer peripheral wall surfaces 7a, 7b, 7c, 7d1, 7d2, and 7d3 in the heat-resistant container 11.

[0049] In the embodiment shown in Figure 2, the peripheral wall gap 6a, which is a gap that exists between the outside of the heat-resistant cylindrical bodies 30, 31, 32, 33 and inner peripheral wall surfaces 8a, 8b, 8c, 8d1, 8d2, 8d3 made of a heat-resistant plate, and the peripheral wall gap 6b, which is a gap that exists between the outside of the heat-resistant cylindrical bodies 30, 31, 32, 33 and outer peripheral wall surfaces 7a, 7b, 7c, 7d1, 7d2, 7d3 made of a heat-resistant plate, are space portions that are not filled with anything.

[0050] In contrast, in the embodiment shown in Figure 3(a), the peripheral wall gap 6a, which is the gap that exists between the outside of the heat-resistant cylindrical bodies 30, 31, 32, 33 and the inner peripheral wall surfaces 8a, 8b, 8c, 8d1, 8d2, 8d3 made of a heat-resistant plate, and the peripheral wall gap 6b, which is the gap that exists between the outside of the heat-resistant cylindrical bodies 30, 31, 32, 33 and the outer peripheral wall surfaces 7a, 7b, 7c, 7d1, 7d2, 7d3 made of a heat-resistant plate, are each filled with insulating material 9.

[0051] In the embodiment shown in Figure 3(b), the peripheral wall gap 6a, which is the gap that exists between the heat-resistant cylindrical bodies 30, 31, 32, 33 and the inner peripheral wall surfaces 8a, 8b, 8c, 8d1, 8d2, 8d3 made of a heat-resistant plate, and the peripheral wall gap 6b, which is the gap that exists between the heat-resistant cylindrical bodies 30, 31, 32, 33 and the outer peripheral wall surfaces 7a, 7b, 7c, 7d1, 7d2, 7d3 made of a heat-resistant plate, are each filled with insulating material 9, and further, the radially inner hollow portion 5 of the heat-resistant cylindrical bodies 34d, 34e, which have a hexagonal cross section, is filled with insulating material 10.

[0052] Although not shown, the peripheral wall gap 6a, which is a gap that exists between the heat-resistant cylindrical bodies 30, 31, 32, 33 and the inner peripheral wall surfaces 8a, 8b, 8c, 8d1, 8d2, 8d3 made of a heat-resistant plate, and the peripheral wall gap 6b, which is a gap that exists between the heat-resistant cylindrical bodies 30, 31, 32, 33 and the outer peripheral wall surfaces 7a, 7b, 7c, 7d1, 7d2, 7d3 made of a heat-resistant plate, can both be gaps that are not filled with anything, and the hollow portion 5 radially inside the heat-resistant cylindrical bodies 34d, 34e, which have a hexagonal cross section, can be filled with insulating material 10.

[0053] The heat insulating materials 9, 10 may be any one or a combination of several of inorganic fibers such as ceramic fibers, heat-resistant inorganic powders such as diatomaceous earth, vermiculite, perlite, silica fume, wallasite, and calcium silicate.

[0054] In the case of the heat-resistant storage container 1 (FIG. 1) shown in FIG. 1, peripheral walls 3a, 3b, 3c, and 3d extending vertically upward from the peripheral edge of the bottom wall 2 are constructed by connecting multiple hollow heat-resistant cylindrical bodies 30, 31, 32, and 33 extending in the longitudinal direction (the up-and-down direction in FIG. 1(b)) in a horizontal direction perpendicular to the longitudinal direction.

[0055] The heat-resistant cylindrical bodies 30, 31, 32, and 33 all have a void 5 on the radially inner side, so the peripheral walls 3a, 3b, 3c, and 3d constructed as described above have excellent heat insulating performance. In addition, the peripheral walls 3a, 3b, 3c, and 3d are highly durable because they easily adapt to thermal expansion and contraction due to temperature changes.

[0056] From the viewpoint of effectively exhibiting heat insulating performance, various sizes and dimensions are appropriately adopted depending on the application and purpose of use of the heat-resistant containers 1 and 11. For example, when the heat-resistant containers 1 and 11 are used as a molten metal holding furnace, the thickness of the peripheral walls 3a, 3b, 3c, and 3d can be, for example, 50 mm to 200 mm.

[0057] In this case, in the embodiment of Figure 1, the peripheral walls 3a, 3b, 3c, and 3d are constructed by heat-resistant cylindrical bodies 30, 31, 32, and 33 that have voids 5 on the radial inside, so the outer diameters of the heat-resistant cylindrical bodies 30, 31, 32, and 33, or the outer diameters of the heat-resistant cylindrical bodies 30, 31, 32, and 33 that correspond to the distance from the inside to the outside of the heat-resistant storage container 1, are set to 50 mm to 200 mm, and from the viewpoint of exhibiting insulating performance due to the presence of the voids 5 on the radial inside of the heat-resistant cylindrical bodies 30, 31, 32, and 33, the wall thickness of the heat-resistant cylindrical bodies 30, 31, 32, and 33, i.e., the radial thickness of the peripheral walls of the heat-resistant cylindrical bodies 30, 31, 32, and 33, can be set to 3 mm to 20 mm.

[0058] In the embodiment shown in FIG. 2 in which the above-mentioned sizes are used, the thickness of the sandwich-structured peripheral walls 13a, 13b, 13c, and 13d can be set to, for example, 50 mm to 200 mm.

[0059] In this case, for example, the thicknesses of the inner peripheral wall surfaces 8a, 8b, 8c, 8d1, 8d2, 8d3 made of heat-resistant plate-like bodies and the thicknesses of the outer peripheral wall surfaces 7a, 7b, 7c, 7d1, 7d2, 7d3 made of heat-resistant plate-like bodies are set to 5 mm to 30 mm, respectively, and the outer diameters of the heat-resistant cylindrical bodies 30, 31, 32, 33 or the distances between the outer surfaces of the inner peripheral wall surfaces 8a, 8b, 8c, 8d1, 8d2, 8d3 and the inner surfaces of the outer peripheral wall surfaces 7a, 7b, 7c, 7d1, 7d2, 7d3 are set to 5 mm to 30 mm. The outer diameter of the heat-resistant cylindrical bodies 30, 31, 32, 33, 34d, 34e is set to 40 mm to 180 mm, and from the viewpoint of exhibiting heat insulating performance due to the presence of the voids 5 present radially inside the heat-resistant cylindrical bodies 30, 31, 32, 33, 34d, 34e, the wall thickness of the heat-resistant cylindrical bodies 30, 31, 32, 33, 34d, 34e, i.e., the radial thickness of the peripheral wall of the heat-resistant cylindrical bodies 30, 31, 32, 33, 34d, 34e, can be set to 3 mm to 20 mm.

[0060] As shown in FIG. 3, the thicknesses of the inner peripheral wall surfaces 8a, 8b, 8c, 8d1, 8d2, and 8d3 can be made larger than the thicknesses of the outer peripheral wall surfaces 7a, 7b, 7c, 7d1, 7d2, and 7d3, so that the thicknesses of the inner peripheral wall surfaces 8a, 8b, 8c, 8d1, 8d2, and 8d3 are approximately 26 mm to 40 mm, and the thicknesses of the outer peripheral wall surfaces 7a, 7b, 7c, 7d1, 7d2, and 7d3 are correspondingly set to approximately 10 mm to 24 mm.

[0061] In the embodiment shown in Figure 2, the heat-resistant cylindrical bodies 30, 31, 32, 33, 34d, and 34e all have a gap 5 on the radially inner side. In addition, there is a peripheral wall gap 6a, which is a gap that exists between the heat-resistant cylindrical bodies 30, 31, 32, and 33 and inner peripheral wall surfaces 8a, 8b, 8c, 8d1, 8d2, and 8d3 made of a heat-resistant plate, and there is a peripheral wall gap 6b, which is a gap that exists between the heat-resistant cylindrical bodies 30, 31, 32, and 33 and outer peripheral wall surfaces 7a, 7b, 7c, 7d1, 7d2, and 7d3 made of a heat-resistant plate. Therefore, the peripheral walls 13a, 13b, 13c, and 13d constructed as described above have excellent heat insulating performance. Moreover, the peripheral walls 13a, 13b, 13c, and 13d are highly durable because they can easily adapt to thermal expansion and contraction due to temperature changes.

[0062] Furthermore, from the viewpoint of improving the heat insulating performance, as described above, the heat-resistant cylindrical body 30 or the like can have a structure in which the heat insulating material 9, 10 is filled in one or more of the radially inner gap 5, the peripheral wall gap 6a, and the peripheral wall gap 6b, as described above.

[0063] Furthermore, as described above, the longitudinally extending hollow heat-resistant cylindrical bodies 30, 31, 32, 33, 34d, and 34e are formed by mixing a monolithic refractory material such as ceramic powder with water, pouring it into a mold, and drying and solidifying it, or by laminating sheets of a monolithic refractory material such as ceramics around the periphery of a cylindrical frame (not shown). These cylindrical bodies are arranged in a horizontal direction perpendicular to the longitudinal direction, and a paste-like refractory material is filled between adjacent cylindrical bodies to form the peripheral walls 3a, 3b, 3c, and 3d. This eliminates the need to mold the entire heat-resistant container, such as a molten metal storage furnace, and simplifies construction. Furthermore, because the longitudinally extending heat-resistant cylindrical bodies 30, 31, 32, 33, 34d, and 34e are hollow, they are relatively lightweight, which also simplifies construction of the heat-resistant container.

[0064] In the case of the sandwich-structured peripheral walls 13a, 13b, 13c, and 13d shown in Figs. 2 and 3, as described above, structures corresponding to the peripheral walls 3a, 3b, 3c, and 3d are formed, and then inner peripheral wall surfaces 8a, 8b, 8c, 8d1, 8d2, and 8d3 made of heat-resistant plates are formed on the inside of the structures corresponding to the peripheral walls 3a, 3b, 3c, and 3d, and outer peripheral wall surfaces 7a, 7b, 7c, and 7d3 made of heat-resistant plates are formed on the outside of the structures corresponding to the peripheral walls 3a, 3b, 3c, and 3d. By arranging the peripheral walls 13a, 13b, 13c, and 13d, and filling a paste-like refractory material between the structures corresponding to the peripheral walls 3a, 3b, 3c, and 3d and the inner peripheral wall surfaces 8a, 8b, 8c, 8d1, 8d2, and 8d3, and between the structures corresponding to the peripheral walls 3a, 3b, 3c, and 3d and the outer peripheral wall surfaces 7a, 7b, 7c, 7d1, 7d2, and 7d3, the peripheral walls 13a, 13b, 13c, and 13d can be constructed, which makes construction easy as described above.

[0065] As such, the heat-resistant storage containers 1, 11 of the present invention can be easily constructed and therefore can be manufactured without requiring any special skilled techniques, making it possible to provide heat-resistant storage containers that can be easily manufactured by people in regions and countries where there is not much proficiency in the technology to manufacture heat-resistant storage containers such as molten metal holding furnaces.

[0066] Although an embodiment of the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiment and can be modified in various ways within the technical scope grasped from the description of the claims.

[0067] For example, in the above-described embodiment, a hollow heat-resistant cylindrical body extending in the longitudinal direction is configured to extend vertically in the heat-resistant storage container 1, 11, and the peripheral wall is constructed by connecting multiple hollow heat-resistant cylindrical bodies in a horizontal direction perpendicular to the longitudinal direction.

[0068] Alternatively, the hollow heat-resistant cylindrical body extending in the longitudinal direction can be configured to extend in the left-right direction perpendicular to the vertical direction of the heat-resistant storage container 1, 11, and the peripheral wall can be constructed by connecting multiple hollow heat-resistant cylindrical bodies in the vertical direction perpendicular to the longitudinal direction (the up-down direction in Figures 1(b) and 2(b)).

[0069] In addition, the peripheral wall extending vertically upward from the peripheral edge of the bottom wall can be constructed not only from a hollow heat-resistant cylindrical body extending in the longitudinal direction, but the bottom wall 2 can also be constructed by connecting multiple hollow heat-resistant cylindrical bodies extending in the longitudinal direction in a horizontal direction perpendicular to the longitudinal direction.

Claims

1. A heat-resistant container comprising a bottom wall and a peripheral wall formed upright from a peripheral edge of the bottom wall, At least the peripheral wall is constructed by a plurality of heat-resistant hollow cylindrical bodies extending in the longitudinal direction and connected in a lateral direction perpendicular to the longitudinal direction. Heat-resistant storage container.

2. A heat-resistant storage container as described in claim 1, wherein heat-resistant plate-like bodies are arranged on the side corresponding to the inside of the heat-resistant storage container and on the side corresponding to the outside of the heat-resistant storage container of the heat-resistant cylindrical bodies arranged in a row in the horizontal direction, respectively, to form the inner wall surface and the outer wall surface of the peripheral wall.

3. A heat-resistant storage container as described in claim 2, wherein an insulating material is filled in the gap within the peripheral wall, which is the gap between the inner peripheral wall surface and the outer peripheral wall surface consisting of the heat-resistant plate-like body, outside the plurality of heat-resistant cylindrical bodies arranged in a row in the horizontal direction.

4. The heat-resistant container according to claim 1 , wherein a void inside the heat-resistant cylindrical body is filled with a heat insulating material.

5. 4. The heat-resistant container according to claim 1, wherein the bottom wall is constructed by connecting a plurality of longitudinally extending hollow heat-resistant cylindrical bodies in a horizontal direction perpendicular to the longitudinal direction.

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