Heat insulation block for partition wall, partition wall, heating furnace, and method for manufacturing partition wall

Abstract

Provided is a heat insulation block for a partition wall, which uses an inorganic fiber aggregate pad, is easy to be installed on the top in a furnace, does not require disassembly of an existing structure, or is capable of suppressing the disassembly range of the existing structure to be small, and is not easy to deform even when a pair of structural bodies is formed on the top in the furnace. And the setting can be easily carried out. This insulating block for partition walls is provided with stacked inorganic fiber aggregate pads, and is provided with a block-fixing metal material on the furnace top-side surface of a heating furnace, and is also provided with a support member that can engage with the block-fixing metal material. And a support member which is provided on the top of the heating furnace and can engage with a pair of structures on the top of the heating furnace, the support member being configured so as to be capable of switching between a state in which the entire support member is positioned between the pair of structures and a state in which a part of the support member extends to the outside between the pair of structures.

Description

Technical Field

[0001] This invention relates to a heat insulation block for partition walls, a partition wall, a heating furnace, and a method for manufacturing the partition wall. Background Technology

[0002] Generally, industrial furnaces are classified into continuous industrial furnaces and intermittent industrial furnaces. In continuous heat treatment furnaces, where large quantities of steel are subjected to continuous heat treatment, the internal volume and length of the furnace increase. For various purposes, such as to perform preheating, heating, homogenization, and cooling of the steel in stages, or to extend the residence time of hot air within the furnace to improve thermal efficiency, partition walls are sometimes installed inside the furnace. One example of such a partition wall is the dry partition wall.

[0003] As a dry partition wall, a partition wall structure for an industrial furnace is known, which includes: a heat-resistant block having a supporting metal member at one end of a molded body made of ceramic fiber blanket in the longitudinal direction; and a receiving component that can engage with the supporting metal member provided on the top of the furnace shell (Patent Document 1).

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent No. 3398534 Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] However, the technology in Patent Document 1 has the following problem: the working space on the top of the heating furnace is limited by hanging metal objects, support beams, etc., making it difficult to carry out delicate operations such as bolting the aforementioned supporting metal parts of the receiving components and the aforementioned heat-resistant blocks.

[0009] In addition, there are the following problems: if the opening of the above-mentioned receiving components is not machined with high precision, and the welding of the above-mentioned receiving components to the existing structure of the furnace top is not performed accurately, then when the heat-resistant block is installed, the bolts of the above-mentioned supporting metal parts do not match the positions of the holes of the above-mentioned receiving components.

[0010] On the other hand, it is also possible to consider tightening the supporting components and bolts in advance, and then fixing the supporting components to the furnace top beam. However, the space at the furnace top is limited, and the partition wall needs to be lifted out of the furnace for construction, which is difficult to achieve for the following two reasons.

[0011] (1) Figure 1The diagram shows a cross-sectional view of the furnace roof section in the furnace width direction. Multiple hanging metal members 14 are suspended from the beam 12 of the furnace roof, and a furnace roof refractory 16 is formed around each hanging metal member 14. A receiving component 18 is welded to the upper part of the hanging metal member 14, for example, as shown in the diagram. The method of inserting the heat-resistant block from below with the receiving component 18 pre-tightened with bolts has the following problem: interference occurs between the receiving component 18 and the hanging metal member 14, preventing insertion.

[0012] (2) Figure 2 The diagram shows a longitudinal sectional view of the furnace roof portion of the heating furnace. Multiple hanging metal members 14 are suspended from the beam 12 of the furnace roof, and a furnace roof refractory 16 is formed around these hanging metal members 14. In this case, a receiving component 18 is welded to the beam 12 of the furnace roof, for example. If the heat-resistant block is to be inserted from below with the receiving component 18 pre-tightened with bolts, the furnace roof refractory 16 along the length of the receiving component 18 needs to be disassembled, resulting in a large-scale disassembly operation.

[0013] In addition, such as Figure 3 As shown, the following operations are performed at the dismantling site on the top of the heating furnace: a pair of structural members 19 are installed on the existing structure (e.g., beam 12). Figure 3 The diagram shows four structures 19, where any two adjacent structures 19 form a pair of structures 19, and the receiving component is fixed to this pair of structures 19. Additionally, there are cases where the distance between this pair of structures 19 is narrower than the furnace top side surface of the aforementioned heat-resistant block.

[0014] In this configuration, the method of inserting the heat-resistant block from below while the receiving component is secured with bolts has the following problem: the receiving component interferes with the pair of structures 19, making it impossible to insert.

[0015] It should be noted that, in Figure 3 In the figure, the direction extending from the lower left to the upper right is the furnace width direction, and the direction extending from the lower right to the upper left is the furnace length direction. Additionally, the figure shows the side wall 17 on one side of the furnace width direction, while the side wall on the other side is omitted.

[0016] In summary, the objective of this invention is to provide a heat insulation block for partition walls that uses an inorganic fiber aggregate pad, which facilitates installation at the top of the furnace without dismantling the existing structure, or at least minimizes the scope of dismantling the existing structure.

[0017] In addition, the present invention aims to provide a heat insulation block for partition walls in which, even when a pair of structures for installing the heat insulation block for partition walls are formed at the top of the furnace, the installation of the heat insulation block for partition walls into the furnace can be easily carried out, even if the pair of structures further restrict the space.

[0018] Technical solutions for solving the problem

[0019] In order to solve the above-mentioned problems, the inventors conducted in-depth research and discovered the following issues.

[0020] By pre-engaging the metal block fixing piece on the furnace top side of the heat insulation block with the support member fixed to a pair of structures on the furnace top, the engagement operation between the support member and the metal block fixing piece is eliminated during the installation of the heat insulation block.

[0021] When fixing the aforementioned support member to a pair of structures on the furnace top, by positioning the support member entirely between the pair of structures before the heat insulation block is installed, preferably in a size that can be accommodated within the furnace top side surface of the heat insulation block, the heat insulation block can be positioned at a designated location without interfering with the pair of structures, even without dismantling the existing structure of the furnace top or by minimizing the dismantling range of the existing structure. Furthermore, after the heat insulation block is positioned at the designated location, by switching the support member to extend beyond the outside of the pair of structures, preferably to extend beyond the furnace top side surface of the heat insulation block, the heat insulation block can be suspended from the furnace top and its vertical position fixed.

[0022] Based on the above, the inventor has completed the following invention.

[0023] [1] A heat insulation block for partition walls, comprising a layered inorganic fiber aggregate pad, and

[0024] The heat insulation block of the partition wall has a metal fixing part on the surface of the furnace top side of the heating furnace.

[0025] The heat insulation block for the partition wall also includes a supporting component, which can engage with the metal parts for fixing the block and with a pair of structures on the top of the heating furnace.

[0026] The support member is configured to switch between two states: a state in which the entire member is located between the pair of structures and a state in which a portion of the member extends outward between the pair of structures.

[0027] [2] According to the heat insulation block for partition walls described in [1], wherein,

[0028] The inner surfaces of the pair of structures are respectively positioned at a position approximately coinciding with the edge of the surface on the furnace top side, or at a position further outward than the surface on the furnace top side.

[0029] The support member is configured to switch between two states: a state in which it is housed inside the surface of the furnace top and a state extending to the outside of the surface of the furnace top.

[0030] [3] According to the heat insulation block for partition walls described in [1], wherein,

[0031] The inner surfaces of the pair of structures are respectively disposed on the inner surfaces of the surfaces on the furnace top side.

[0032] The support member is configured to switch between two states while being housed inside the surface of the furnace top: a state located between the pair of structures and a state extending to the outside between the pair of structures.

[0033] [4] A heat-insulating block for partition walls according to any one of [1] to [3], wherein,

[0034] The support member is rotatably engaged with a shaft extending from the block fixing metal member toward the furnace top of the heating furnace.

[0035] The support member is configured to switch between two states by rotating about the axis: a state located between the pair of structures and a state extending to the outside of the pair of structures.

[0036] [5] A heat-insulating block for partition walls according to any one of [1] to [3], wherein,

[0037] The support member includes: a fixed support member connected to a shaft extending from the block fixing metal member toward the furnace top of the heating furnace; and at least one movable support member connected to the fixed support member;

[0038] The movable support member is rotatably engaged with another shaft extending from the fixed support member toward the top of the heating furnace.

[0039] The movable support component is configured to switch between two states by rotating about the other axis: a state located between the pair of structures and a state extending to the outside of the pair of structures.

[0040] [6] A heat-insulating block for partition walls according to any one of [1] to [3], wherein,

[0041] The support member includes: a fixed support member connected to a shaft extending from the block fixing metal member toward the furnace top of the heating furnace; and at least one movable support member connected to the fixed support member;

[0042] The movable support member is configured to switch between two states by sliding relative to the fixed support member: a state located between the pair of structures and a state extending to the outside of the pair of structures.

[0043] [7] A partition wall insulation block according to any one of [1] to [6], wherein the supporting member is suspended from the pair of structures by engaging with the pair of structures.

[0044] [8] A partition wall having a plurality of heat-insulating blocks for partition walls according to any one of [1] to [7] in the furnace width direction.

[0045] [9] A heating furnace having a partition wall according to [8].

[0046]

[10] A method for manufacturing a partition wall, comprising suspending a partition wall according to any one of [1] to [7] from the pair of structures on the top of the heating furnace and manufacturing the partition wall inside the furnace, comprising:

[0047] The insertion process involves inserting the support member between the pair of structures while the support member is positioned between them; and

[0048] The engaging process involves, after the insertion process, switching the support member to extend outwards between the pair of structures, thereby engaging the support member with the pair of structures.

[0049] Beneficial effects of the invention

[0050] The heat insulation block for partition walls according to the present invention is easy to install towards the top of the furnace without dismantling the existing structure, or the scope of dismantling the existing structure can be minimized. In particular, it eliminates the need for hole alignment at the top of the furnace and the need for nut tightening, thus ensuring good workability.

[0051] Furthermore, even if a pair of structures for installing heat insulation blocks for partition walls are formed at the top of the furnace, the installation of heat insulation blocks into the furnace can be easily carried out, even if the pair of structures further restrict the installation space. Attached Figure Description

[0052] Figure 1 This is a cross-sectional view of the furnace top portion of a heating furnace in the prior art, taken in the direction of furnace width.

[0053] Figure 2 It is a cross-sectional view along the length of the furnace top section of a heating furnace in the prior art.

[0054] Figure 3 This is a schematic diagram of the furnace top portion of a heating furnace in the case where a pair of structures 19 for installing heat-insulating blocks for partition walls are formed at the top of the furnace.

[0055] Figure 4 This is a perspective view of the heat insulation block 100 for partition walls of the present invention.

[0056] Figure 5 (a) and (b) are viewed from the Z1 direction. Figure 4 The diagram of the partition wall insulation block 100 is a diagram showing the positional relationship between the support member 20 and a pair of structures 19.

[0057] Figure 6 This is a simplified diagram representing a portion of the insulation block precursor 30.

[0058] Figure 7 (a) to (b) are simplified diagrams representing other forms 20B to 20C of the support member 20, and are diagrams in which the creases of the inorganic fiber aggregate pad 32 are omitted.

[0059] Figure 8 (a) to (c) are simplified diagrams representing other forms 20D to 20F of the support member 20, and are diagrams in which the creases of the inorganic fiber aggregate pad 32 are omitted.

[0060] Figure 9 (a) to (b) are simplified diagrams representing other forms 20G to 20H of the support member 20, and are diagrams in which the creases of the inorganic fiber aggregate pad 32 are omitted.

[0061] Figure 10 This is a simplified diagram showing another form 20I of the support component 20, and the diagram omits the creases of the inorganic fiber aggregate pad 32.

[0062] Figure 11 (a) is a diagram of the support member 20B viewed from the top of the furnace with surface P1 facing the top of the furnace. It is a simplified diagram of the support member 20B as a whole located between a pair of structures 19. Figure 11 (b) is a simplified diagram of a portion of the support member 20B extending to the outside between a pair of structures 19. Figure 11 (c) is another simplified diagram of the state in which the entire support member 20B is located between a pair of structures 19.

[0063] Figure 12 (a) is a simplified diagram of the support member 20B viewed from the top of the furnace with surface P1 facing the top of the furnace. Figure 12(b) is a simplified diagram showing the state of the support component 20B after it rotates around the axis 38. Figure 12 (c) is a simplified diagram showing the state of the support component 20B after further rotation around the axis 38.

[0064] Figure 13 (a) is a diagram of the support member 20D viewed from the top of the furnace with surface P1 facing the top of the furnace. It is a simplified diagram of the support member 20D as a whole located between a pair of structures 19. Figure 13 (b) is a simplified diagram of a portion of the support member 20D extending to the outside between a pair of structures 19.

[0065] Figure 14 (a) is a simplified diagram of the support member 20D viewed from the top of the furnace with surface P1 facing the top of the furnace. Figure 14 (b) is a simplified diagram of the support member 20D in another form, viewed from the furnace top side with surface P1 facing the furnace top. Figure 14 (c) is a conceptual diagram of the support component 20D in another form as viewed from the top of the furnace with surface P1 facing the top of the furnace. Detailed Implementation

[0066] The following describes a heat-insulating block for partition walls, a partition wall, a heating furnace, and a method for manufacturing the partition wall as examples of embodiments of the present invention. However, the scope of the present invention is not limited to the embodiments described below. It should be noted that the expression "a to b" indicating a numerical range, unless otherwise specified, means "a or more and b or less," and includes the meanings of "preferably greater than a" and "preferably less than b." In addition, the upper and lower limits of the numerical ranges in this specification, even if slightly deviating from the numerical ranges specified in the present invention, should be considered to be included within the equivalent scope of the present invention as long as they have the same effect as those within the numerical range.

[0067] <Insulating blocks for partition walls>

[0068] Figure 4 The figure shows a perspective view of one embodiment 100 of the heat insulation block for partition walls of the present invention.

[0069] The partition wall insulation block 100 of the present invention includes: a stacked inorganic fiber aggregate pad 32; a block fixing metal member 34 disposed on the furnace top side surface P1 of the heating furnace; and a support member 20 (20A) capable of engaging with the block fixing metal member 34 and engaging with the existing structure of the furnace top of the heating furnace. The support member 20 (20A) is configured to switch between two states: a state in which its entirety is located between a pair of structures 19 formed on the furnace top of the heating furnace, and a state in which a portion of its portion extends to the outside of the pair of structures.

[0070] In the case where the inner surfaces of a pair of structures 19 are respectively positioned approximately at the same level as the edge of the furnace top surface P1, or at a position further outward than the furnace top surface P1 (to be explained later)... Figure 12 , 14 In the case of the positional relationship between surface P1 and a pair of structures 19, the support member 20 is preferably configured to be able to switch between two states: a state in which it is housed inside surface P1 on the furnace top side and a state extending to the outside of surface P1 on the furnace top side.

[0071] This configuration further enhances the ease of insertion (constructability) into existing structures.

[0072] In the case where the inner surfaces of a pair of structures 19 are respectively positioned inside the inner surface P1 on the furnace top side (to be explained later) Figure 11 , 13 In the case of the positional relationship between surface P1 and a pair of structures 19, the support member 20 is preferably configured to switch between two states while being housed inside surface P1 on the furnace top side: a state located between a pair of structures 19 and a state extending to the outside between a pair of structures 19.

[0073] (A pair of structures 19)

[0074] The pair of structures 19 formed on the top of the heating furnace are supplementary structures installed relative to existing structures such as beam 12 on the top of the heating furnace in which a partition wall is to be formed. One end of each structure 19 is connected to and fixed to the existing structures such as beam 12. The existing structures such as beam 12 can also be used as a pair of structures 19.

[0075] It should be noted that as long as the pair of structures 19 are as follows: Figure 3 The above can be a pair of straight, elongated components, the cross-sectional shape of which is not particularly limited. One example of the cross-sectional shape of the elongated component is a quadrilateral, specifically a rectangle as shown in the figure. For example, the elongated component can be a solid rectangular component or a hollow rectangular component.

[0076] In addition, the straight, elongated component can be a long strip of sheet material, or it can be a cross-section having an upper surface, a lower surface, and a surface connecting them approximately at their center, such as... Figure 3 Long strip components like beam 12 can also be long strip components with a cross-section that is the shape of a quadrilateral after one side has been removed.

[0077] In addition, the concept of a pair of structures 19 in this invention includes not only the pair of structures 19 added above, but also a pair of existing structures, or a combination of one being an added structure 19 and the other being an existing structure.

[0078] The pair of structures 19 can extend along the width of the furnace or along the length of the furnace. It should be noted that, from the perspective of setting up partition walls, from an operational point of view, it is preferable that the pair of structures 19 extend along the width of the furnace.

[0079] (Relationship between support component 20 and a pair of structures 19)

[0080] Figure 5 (a) and (b) show the view from the Z1 direction. Figure 4 The diagram shows the 100mm heat insulation block used in the partition wall. Figure 5 In (a) and (b), the state in which the support member 20 of the partition wall insulation block 100 is inserted between a pair of structures 19 is shown.

[0081] exist Figure 5 In (a), the entire support member 20 is shown positioned between a pair of structures 19. Figure 5 (b) shows a portion of the support member 20 extending outward between the pair of structures 19.

[0082] It should be noted that, in the above content, "between a pair of structures 19" refers to... Figure 5 Between the line L1 extending vertically along the inner surface 19P1 and the line L2 extending vertically along the inner surface 19P2 of each pair of structures 19 in (a) and (b).

[0083] like Figure 5 As shown in (a), with the support member 20 positioned entirely between the pair of structures 19, that is, with the support member 20 positioned entirely between lines L1 and L2, the partition wall insulation block 100 is lifted from below, allowing the support member 20 to pass between the pair of structures 19. Thus, the support member 20 is positioned above the pair of structures 20, and the stacked inorganic fiber aggregate pad 32 and the block fixing metal piece 34 are positioned below the pair of structures 19.

[0084] In the above Figure 5 In state (a), by switching to a state in which a portion of the support member 20 extends outward between the pair of structures 19, that is... Figure 5 The state shown in (b) allows the support member 20 to engage with the pair of structures 19, and the partition wall insulation block 100 is configured to be suspended from the pair of structures 19. Figure 5 In (a) and (b), the inner surfaces 19P1 and 19P2 of a pair of structures 19 are arranged inside the surface P1 on the furnace top side, but the inner surfaces 19P1 and 19P2 can also be arranged outside the surface P1 on the furnace top side.

[0085] (Layered inorganic fiber aggregate pad 32)

[0086] The heat insulation block 100 for partition walls of the present invention is composed of a stacked inorganic fiber aggregate pad 32, a solid metal part 34 and a support member 20 (20A). Hereinafter, in this specification, the component composed of the stacked inorganic fiber aggregate pad 32 and the solid metal part 34 will be referred to as the heat insulation block precursor 30.

[0087] The inorganic fibers used to form the laminated inorganic fiber aggregate pad 32 are not particularly limited, and can be, for example, individual or composite fibers of silica, alumina / silica, zirconium oxide, spinel, titanium dioxide, and calcium oxide containing these components. Among these, alumina / silica fibers, especially polycrystalline alumina / silica fibers, are particularly preferred in terms of heat resistance, fiber strength (toughness), and safety. Alumina / silica fibers with an alumina ratio of 70-80% by mass and a silica ratio of 30-20% by mass are particularly preferred. Since the present invention involves a relatively long heat insulation block precursor 30 in the height direction, if the tensile strength of the inorganic fiber aggregate pad 32 is low, it may break and fall due to its own weight. Based on this consideration, the aforementioned alumina / silica fibers with high tensile strength at high temperatures are preferred, and polycrystalline alumina / silica fibers are particularly preferred.

[0088] As for the inorganic fiber aggregate mat 32, based on the reason of ensuring safety while improving heat resistance and durability, it is preferable to make a mat (needle-punched blanket) that is made by needle-punching an inorganic fiber aggregate that does not substantially contain fibers with a diameter of less than 3μm.

[0089] The bulk density of the inorganic fiber aggregate pad 32 is not particularly limited, but considering the heat resistance and strength of the formed insulation block precursor 30, it is preferably 85 kg / m³. 3 ~150kg / m 3 Further preferred is 90kg / m 3 ~140kg / m 3 .

[0090] The thickness of the inorganic fiber aggregate pad 32 can be appropriately selected, but considering workability and strength, it is preferably 10-30 mm, more preferably 12.5-27 mm. If the thickness is too thin, the construction will be time-consuming and laborious; if the thickness is too thick, it will be difficult to maintain the shape of the insulation block precursor 30 when folding.

[0091] The size of the inorganic fiber aggregate pad 32 is not particularly limited. It can be appropriately cut to a suitable size according to the required size of the insulation block precursor 30. Figure 4As shown, the inorganic fiber aggregate pad 32 constituting the partition wall insulation block 100 of the present invention is preferably used by stacking multiple strip pads after folding them in half. In this case, the inorganic fiber aggregate pad 32 has a length twice the height of the partition wall formed.

[0092] (Size of the heat insulation block precursor 30)

[0093] As the precursor 30 for the insulation block, its size is not particularly limited as long as it can ensure the insulation effect as a partition wall and does not hinder the workability that is a feature of this invention. (Furnace length direction) Figure 4 The length (in the Y direction) is preferably 200mm or more and 400mm or less, more preferably 250mm or more and 350mm or less. By setting it to the lower limit or above, the heat insulation effect as a partition wall can be fully utilized. In addition, by setting it to the upper limit or below, the weight of the heat insulation block precursor 30 can be avoided from being too large, thereby ensuring good workability.

[0094] Furnace width direction of the heat insulation block precursor 30 ( Figure 4 The length (in the X direction) is preferably 200 mm or more and 400 mm or less, more preferably 250 mm or more and 350 mm or less. By setting it to the lower limit or above, the number of insulation block precursors 30 required to form the partition wall can be set to an appropriate number, thereby ensuring good workability. In addition, by ensuring sufficient reaction force between the insulation block precursors 30, they can withstand the furnace air pressure. Furthermore, by setting it to the upper limit or below, excessive weight of the insulation block precursors 30 can be avoided, thereby ensuring good workability.

[0095] The height of the heat insulation block precursor 30 (and) Figure 4 The X and Y directions (perpendicular to each other) can be set arbitrarily and can be appropriately selected according to the required partition height. For example, it is preferable to set it to 1000mm or more and 2000mm or less.

[0096] (Folding method of inorganic fiber aggregate pad 32)

[0097] Regarding the folding method of the inorganic fiber aggregate pad 32, it is only necessary to fold it on the side of the heat insulation block precursor 30 that is located on the furnace shell side (in...). Figure 4 There are no particular restrictions on whether the surface P1 where the metal part 34 for fixing the heat insulation block 100 is provided has creases. Based on the viewpoint of firmly fixing the heat insulation block 100 to the furnace top, it is preferable that the surface P1 where the heat insulation block precursor 30 is located on the side of the furnace top has at least two creases, more preferably four or more creases. The upper limit of the number of creases depends on the size of the heat insulation block precursor 30, but is preferably 10 or less, more preferably 8 or less. It should be noted that... Figure 4In the configuration shown, eight creases are formed on the surface of the heat insulation block precursor 30 located on the side of the furnace top.

[0098] As a folding method for the inorganic fiber aggregate pad 32, such as Figure 4 As shown, it is preferable to fold the long strip pads in half and then stack multiple pads by aligning the creases on the surface P1 on the side of the furnace top. Figure 4 In the middle, there are eight long strips of padding that have been folded in half.

[0099] Alternatively, it could be a method of repeatedly folding a single long strip of mat, or a method of combining multiple long strips of mat by repeatedly folding them. However, if the mat is too long, the workability is poor, so the preferred method is... Figure 4 The method shown is to overlap multiple long strips of pad after folding them in half.

[0100] Furthermore, as mentioned above, as long as a predetermined number of creases are formed on the surface P1 located on the side of the furnace top, it is not a problem to mix in the strip pads on the partially folded flat plate.

[0101] There are no particular restrictions on the bulk density of the insulation block precursor 30, but it is preferably 96 kg / m³. 3 ~160kg / m 3 More preferably 100 kg / m 3 ~140kg / m 3 The lower limit is further optimized to be 128 kg / m³ 3 The folded inorganic fiber aggregate pad 32 constituting the precursor body 30 of the insulation block is preferably ultimately in a compressed state. That is, it is preferable to compress the folded inorganic fiber aggregate pad 32 while the beam 36, which will be described later, is inserted and fixed.

[0102] From the viewpoint of improving the heat resistance and durability of the heat insulation block precursor 30, the compression ratio is preferably 10% or more, more preferably 15% or more, and even more preferably 20% or more. Furthermore, from the viewpoint of preventing deformation of the beam 36, the upper limit is preferably 40% or less, more preferably 30% or less. It should be noted that by increasing the compression ratio, the bulk density of the heat insulation block precursor 30 increases, thereby improving the heat resistance of the heat insulation block precursor 30.

[0103] The heat insulation block precursor 30 can be sewn together using alumina rope or similar materials to achieve compression or shape retention. Alternatively, the bulk density of the heat insulation block precursor 30 can be increased by folding and layering the inorganic fiber aggregate pad 32, pressing it against both sides of the compression surface with a pressure plate (not shown) such as plywood or metal plate, and securing it with straps (not shown). Maintaining the compressed state solely with straps, without using a pressure plate, is also acceptable.

[0104] The heat insulation blocks 100 for the partition wall can be released from compression by cutting the aforementioned binding straps after construction, so that the heat insulation blocks 100 for the partition wall can fit together and be fixed in the furnace.

[0105] (34 metal parts for block fixing)

[0106] A metal part 34 for fixing the heat insulation block is installed on the surface P1 adjacent to the furnace shell of the heat insulation block precursor 30. A shaft 38, such as a bolt or stud, is erected on this metal part 34, for example by means of screws, and the support member 20, which will be described later, is engaged with this shaft 38. The shaft 38, such as the bolt or stud, can also be welded to the metal part 34 for fixing the heat insulation block.

[0107] Figure 6 The diagram shows a simplified disassembled view of a portion of the heat insulation block precursor 30 (showing a simplified diagram of the manufacturing process of the heat insulation block precursor 30). The shape of the metal part 34 for fixing the block is as follows: Figure 4 , 6 The plate-like body extending along the stacking direction of the inorganic fiber aggregate pad 32, as shown, is preferably U-shaped in cross section from the viewpoint of imparting strength, or it may also be in the form of having a flange.

[0108] On the metal part 34 for fixing the block, such as Figure 4 As shown, bolts, studs, and other shafts 38 are connected at the central portion of the inorganic fiber aggregate pad 32 in the stacking direction. Preferably, a thread or a hole with a threaded groove is formed at the central portion for connecting the shaft 38. Alternatively, when the studs, studs, and other shafts 38 are connected by welding, threads or holes are not necessarily required, and a recess for vertically mounting the shaft 38 can also be formed, for example.

[0109] Multiple slits 342 are formed on the metal part 34 for inserting the blade 362 of the beam 36.

[0110] From the perspective of strength and heat resistance, the material of the metal part 34 for fixing the block is preferably heat-resistant stainless steel such as SUS310S or SUS304.

[0111] (Manufacturing method of heat insulation block precursor 30)

[0112] The following will demonstrate one example of a method for manufacturing the heat insulation block precursor 30.

[0113] First, cut out an inorganic fiber aggregate pad 32 with the required width and length. Then, place the cut inorganic fiber aggregate pad 32 as follows... Figure 6 Fold the material in half as shown, and install the beam 36 on the inside of the fold. At this time, install the beam 36 in such a way that the blade 362 of the beam 36 is exposed on the furnace top side surface P1 of the precursor body 30 of the heat insulation block to be formed.

[0114] The beam 36 has the function of fixing the block fixing metal part 34 and the stacked inorganic fiber aggregate pad 32. It is inserted into the fold of the inorganic fiber aggregate pad 32. The blade 362 of the beam 36 penetrates the pad 32 and protrudes towards the furnace top side of the heat insulation block precursor 30. As described later, the blade is fixed to the block fixing metal part 34.

[0115] In addition, since beam 36 is inserted into the stacked inorganic fiber aggregate pad 32 and is located on the furnace top side when it is set on the furnace top, it can suppress heat-induced damage.

[0116] It should be noted that, in Figure 6 The image shows only a folded inorganic fiber aggregate pad 32, but in manufacturing, for example... Figure 4 When the heat insulation block precursor 30 is shown, a total of eight identical folded inorganic fiber aggregate pads 32 are connected to the block fixing metal part 34 via beam 36.

[0117] The number of beams 36 is not particularly limited as long as it can accommodate the metal parts 34 for fixing the mounting blocks, but four or more are preferred for reasons of joint strength. The material of the beams 36 is not particularly limited as long as it can provide heat resistance when used in the furnace; for example, SUS310S or SUS304 are suitable materials. The shape of the beams 36 is not particularly limited as long as it can secure the folded inorganic fiber aggregate pad 32 to the metal parts 34 for fixing the blocks; for example, a round bar with a triangular blade welded on it, as shown in the figure, is suitable.

[0118] It should be noted that if the inorganic fiber aggregate pad 32 is not folded back and forth or folded in half, but rather a plate-shaped inorganic fiber aggregate pad 32 is stacked to form the precursor of the insulation block, then the beam 36 cannot be used to fix the block fixing metal member 34 and the inorganic fiber aggregate pad 32. In this case, a crossbeam with a welded supporting metal member is passed through the stacked plate-shaped inorganic fiber aggregate pad 32. In this invention, the use of such a crossbeam is not excluded, but from the viewpoint of durability, it is preferable to use the aforementioned beam 36 to fix the block fixing metal member 34 and the inorganic fiber aggregate pad 32.

[0119] Generally, the inorganic fiber aggregate pad 32 set on the furnace wall will be fixed to the furnace wall by its own reaction force. However, in the partition wall heat insulation block 100 of the present invention, in addition to the reaction force of the pad, the block fixing metal part 34 has the function of suspending and fixing the partition wall heat insulation block 30 from the furnace top.

[0120] The partition wall formed by the heat-insulating block 100 of the present invention has a gap on its lower side for steel plates to pass through, and is not supported from the hearth side. Therefore, in order to prevent it from slipping downwards, in addition to the reaction force of the inorganic fiber aggregate pad 32 itself, it is also necessary to fix its vertical position by suspending it from the furnace top side. The block fixing metal part 34, together with the support member 20 to be described later, is used for this purpose.

[0121] The metal part 34 for fixing the block is preferably made of a material that can suppress damage caused by heat in the furnace, such as heat-resistant stainless steel such as SUS310S or SUS304. The shaft 38 is made of the same material.

[0122] Then, a pressure plate of the same size is used to press down on the side of the insulation block precursor 30. Through the pressure plate, using a compression strapping machine or similar device, it is compressed to a specified thickness in the stacking direction of the layered inorganic fiber aggregate pad 32, and then secured with straps. The straps are used to compress and fix the insulation block precursor 30 to the specified size. The material of the straps is not particularly limited as long as it can perform this function; for example, polypropylene (PP) straps, polyethylene (PE) straps, iron straps, etc., can be used.

[0123] The pressure plate is installed on the side of the insulation block precursor 30. It protects the insulation block precursor 30 when it is compressed using straps. In actual installation inside the furnace, the straps are cut and the pressure plate is removed. The material of the pressure plate is not particularly limited; plywood, wood, iron, plastic, corrugated cardboard, etc., can be used. The shape of the pressure plate is not particularly limited and can be selected based on the side shape of the insulation block precursor 30. The size of the pressure plate is not specifically specified, but it is preferably slightly smaller than the size of the insulation block precursor 30.

[0124] Then, a block fixing metal piece 34 is installed on the blade 362 of the beam 36 protruding from the inorganic fiber aggregate pad 32. For example, after the blade 362 of the beam 36 passes through the slit 342 provided in the block fixing metal piece 34, the blade 362 is bent and fixed by welding or screws, thereby fixing the block fixing metal piece 34 to the beam 36.

[0125] (Supporting component 20 that can engage with a pair of structures 19 on the top of the heating furnace)

[0126] In addition to the aforementioned heat insulation block precursor 30, the heat insulation block 100 for partition walls of the present invention also includes a support member 20 (20A to 20I), which can engage with the block fixing metal member 34 of the precursor 30 and can engage with a pair of structures on the top of the heating furnace.

[0127] The support member 20 (20A) is configured to switch between two states: a state in which the entire part is located between the pair of structures and a state in which a part of the part extends outward between the pair of structures.

[0128] Support component 20 (20A) is, for example, Figure 4 As shown, the structure can be configured with the following components: a fixed support member 22A, fixed to a shaft 38 extending from the block fixing metal member 34 toward the furnace top; and at least one movable support member 24A1, 24A2, connected to the fixed support member 22A. The fixed support member 22A can extend along the furnace width direction (X direction) or along the furnace length direction (Y direction). The extension direction of the fixed support member 22A can be appropriately adjusted according to the extension direction of the pair of structures 19.

[0129] The movable support members 24A1 and 24A2 are rotatably engaged with another shaft extending from the fixed support member 22A toward the furnace top of the heating furnace. The movable support members 24A1 and 24A2 are configured to rotate around the other shaft, allowing them to switch between two states: a state in which they are located between a pair of structures 19 and a state extending to the outside of the pair of structures 19. Preferably, they are configured to switch between two states: a state housed inside surface P1 and a state extending to the outside of surface P1.

[0130] exist Figure 4 In the support member 20 (20A), two movable support members 24A1 and 24A2 are connected to both ends of the fixed support member 22A extending in the X direction.

[0131] Figure 4 The movable support member 24A1 on the left side of the diagram is shown in the closed state, and the movable support member 24A2 on the right side of the diagram is shown in the open state. The closed state of both movable support members 24A1 and 24A2 corresponds to the state in which "the entire support member 20A is located between a pair of structures 19", and the open state corresponds to the state in which "a part of the support member 20A extends to the outside of the pair of structures 19".

[0132] Furthermore, the state in which both movable support members 24A1 and 24A2 are closed corresponds to the state described above where "support member 20A is housed inside surface P1", and the state in which both are open corresponds to the state described above where "support member 20A extends to the outside of surface P1".

[0133] As detailed below, with the inner surfaces of the pair of structures 19 respectively positioned inside the surface P1 on the furnace top side, the partition wall insulation block 100 is inserted between the pair of structures 19 on the furnace top side, with the entire support member 20 (20A) positioned between the pair of structures. After insertion, by switching to a state where a portion of the support member 20A extends to the outside between the pair of structures 19, the support member 20A can be engaged with the pair of structures 19 on the furnace top. This allows the partition wall insulation block 100 to be suspended from the furnace top, thereby fixing its vertical position.

[0134] Furthermore, when the inner surfaces of the pair of structures 19 are respectively positioned approximately at the same level as the edge of the furnace top side surface P1, or at a position further outward than the furnace top side surface P1, it is preferable to insert the partition wall insulation block 100 between the pair of structures 19 on the furnace top side with the support member 20 housed inside the furnace top side surface P1. This improves the insertability of the partition wall insulation block 100.

[0135] Figure 4 The fixed support member 22A and the movable support members 24A1 and 24A2 in the support member 20 (20A) are both formed of L-shaped steel. These L-shaped steels are connected to each other by bolts and nuts, so that the movable support members 24A1 and 24A2 can rotate about the bolt as an axis (another axis extending towards the top of the heating furnace). It should be noted that, as long as the fixed support member 22A and the movable support members 24A1 and 24A2 can be connected in a rotatable manner, the connection method (connection method) of the fixed support member 22A and the movable support members 24A1 and 24A2 is not limited.

[0136] The fixed support member 22A is connected to the shaft 38 by a nut. These members are basically fixed, but can also be configured to be slightly rotatable by applying force. By configuring the fixed support member 22A to be rotatable, obstacles can be avoided when inserting the partition wall insulation block 100 between a pair of structures 19 on the furnace top.

[0137] The support member 20 (20A) is preferably formed of L-shaped steel, U-shaped steel or C-shaped steel as described above, so as to give the structure the strength to withstand the suspended heat insulation block 100. However, as long as the required strength can be given, such as by increasing the thickness of the material forming the support member 20, it may also be formed of flat steel.

[0138] As for the material of the support component 20 (20A), since it is located outside the furnace, there is no problem using SS material, etc. However, in the case of high furnace temperature and rising furnace temperature, in order to prevent corrosion of the support component 20, it is preferable to make it of heat-resistant stainless steel such as SUS310S or SUS304.

[0139] Furthermore, the size of the support member 20 (20A) need only be such that it can switch between two states: "its entirety is located between the pair of structures 19" and "a portion of it extends outwards from between the pair of structures 19". For example, in Figure 4 In the case of the support member 20A, when the movable support members 24A1 and 24A2 are folded (closed state), and the surface P1 faces the top of the heating furnace and is viewed from the top side, as long as the entire support member 20A is located between the pair of structures 19, various shapes and sizes can be adopted.

[0140] Furthermore, in a preferred embodiment, the size of the support member 20 (20A) is sufficient to switch between two states: "retracted into the inner side of surface P1" and "extended to the outer side of surface P1". For example, in Figure 4 In the case of the support member 20A, when the movable support members 24A1 and 24A2 are folded (closed state), and the surface P1 faces the top of the heating furnace and is viewed from the top side, the support member 20A can be completely housed inside the surface P1, and various shapes and sizes can be adopted.

[0141] The length of the elongated fixed support member 22A is preferably more than 80% and less than 120% of the distance W1 between a pair of structures 19, more preferably more than 90% and less than 100%, and more preferably more than 90% and less than 95%. That is, the length of the fixed support member 22A is about 5 to 10% shorter than the distance L1 between a pair of structures.

[0142] In addition, in the preferred embodiment, the length of the elongated fixed support member 22A is preferably 80% or more and 120% or less of the length of the surface P1 of the heat insulation block in the X direction, more preferably 90% or more and 100% or less, and particularly preferably 100%, that is, the length of the fixed support member 22A is the same as the length of the surface P1 of the heat insulation block in the X direction.

[0143] Regarding the fixed support member 22A, its width is preferably 20 to 60 mm. Its length depends on the distance W1 between the pair of structures or the size of the furnace top side surface P1 of the heat insulation block 100, but if it is too long, it may deform due to thermal expansion, so it is preferably 500 mm or less. The thickness of the fixed support member 22A is preferably 3 to 5 mm.

[0144] Furthermore, the lengths of the movable support members 24A1 and 24A2 are preferably 80% or more and 120% or less, more preferably 90% or more and 110% or less, and particularly preferably 100% of the length of the surface P1 of the heat insulation block relative to half the length of the surface P1 of the heat insulation block 30. In other words, the lengths of the movable support members 24A1 and 24A2 are the same as half the length of the surface P1 of the heat insulation block 30 in the Y direction.

[0145] Regarding the movable support components 24A1 and 24A2, specifically, their width and thickness are the same as those of the fixed support component 22A. Their length depends on the size of the furnace top side surface P1 of the heat insulation block 100, but if it is too long, it may deform due to thermal expansion, so it is preferably 200 mm or less.

[0146] (Other forms of support component 20)

[0147] Figure 7 (a) to (b) Figure 8 (a) to (c) Figure 9 (a) to (b) and Figure 10 Other configurations 20B to 20I of the support member 20 are shown. It should be noted that... Figures 7-9 as well as Figure 10 Sometimes the X and Y directions are omitted, but they are consistent with... Figure 4 Similarly, the direction in which the metal part 34 for fixing the block extends is the X direction, and the direction orthogonal to the X direction is the Y direction. Furthermore, in Figures 7-9 as well as Figure 10 The creases of the inorganic fiber aggregate pad 32 are omitted in the text.

[0148] Figure 7 (a) shows the configuration in which the support member 20B of the L-shaped steel is rotatably engaged with the shaft 38. In this configuration, the support member 20B is composed of a single component (the L-shaped steel in the drawing). The length Lb of the support member 20B is sufficient to position it between a pair of structures 19, and more preferably, it is suitable to be housed on the furnace top side surface P1 of the insulation block 100.

[0149] In this configuration, cost reduction can be achieved by reducing the number of parts. In addition, since the rotating part is in one place (i.e., the hole formed in the support member is in one place), strength reduction, which may be the main cause of damage during installation and operation, can be suppressed.

[0150] Figure 11 In the diagram, a view of the furnace top side perspective P1 is shown regarding the heat insulation block 100 for the partition wall having supporting member 20B. Figure 11 In the state shown in (a), the entire support member 20B is located between a pair of structures 19. Therefore, by lifting the partition wall insulation block 100 from below, the support member 20B can be positioned between the pair of structures 19 on the furnace top side of the pair of structures 19.

[0151] Figure 11 (b) shows the following state: In the above state, by rotating the support member 20B about axis 38, the state is switched to one in which the support member 20B extends to the outside of the pair of structures 19. In this state, the support member 20B engages with the pair of structures 19. Thus, the partition wall insulation block is suspended from the pair of structures 19. In this example, it is not necessary for the inorganic fiber aggregate pad 32 to pass between the pair of structures 19 in order to suspend the partition wall insulation block from the pair of structures 19. Therefore, the movement distance of the inorganic fiber aggregate pad 32 can be shortened, thereby improving workability.

[0152] It should be noted that, based on the viewpoint of engaging with a pair of structures 19, the length Lb of the support member 20B needs to be longer than W1, preferably 110% or more of W1, more preferably 120% or more of W1, and even more preferably 130% or more of W1.

[0153] Furthermore, when existing structures exist in the Y direction, based on the viewpoint of avoiding them, such as... Figure 11 As shown in (c), the length Lb of the support member 20B is preferably less than the diagonal length of the points where the inner surfaces 19P1 and 19P2 of the pair of structures 19 intersect with the surface P1 on the furnace top side. It should be noted that when designing the support member 20B, if the length of W1 is unknown, such as... Figure 11 As shown in (a), the length Lb of the preferred support member 20B is less than or equal to the length of the Y direction of the surface P1.

[0154] Figure 12 The diagram shows the view from plane P1 when W1 and plane P1 have approximately the same length in the X direction. Figure 12 As shown in (a), when the length Lb of the support member 20B is the same as the diagonal of the surface P1, when the support member 20B is rotated about the axis 38 (not shown), then as follows: Figure 8As shown in (b), the end of the support member 20B extends to the outside of surface P1, and when rotated further, it is as follows: Figure 8 As shown in (c), the end of the support member 20B extends further to the outside of surface P1. This extended portion can be engaged with the existing structure of the pair of structures 19 or the furnace roof.

[0155] Based on this viewpoint, the length Lb of the support member 20B is preferably 95% or more and 100% or less of the diagonal length of the surface P1 on the furnace top side of the heat insulation block precursor 30, more preferably 98% or more, and most preferably 100%. In other words, the length Lb of the fixed support member 22B is consistent with the diagonal length of the surface P1.

[0156] Figure 7 (b) shows a support member 20C in which two support members 20C1 and 20C2 are rotatably engaged with shaft 38. In the illustrated configuration, one support member 20C1 is formed of L-shaped steel, and the other support member 20C2 is formed of flat steel. However, both can also be made of L-shaped steel and stacked in opposite directions (the uprights of the upper L-shaped steel face upwards, and the uprights of the lower L-shaped steel face downwards), or both can be made of flat steel, provided that strength is guaranteed. In this configuration, since 20C1 and 20C2 can be rotated in different directions, obstacles can be avoided more effectively when they are placed between a pair of structures 19 on the furnace top.

[0157] The length Lc of support members 20C1 and 20C2 (the length from shaft 38 to the end of support members 20C1 and 20C2) corresponds to half the length of support member 20B. Furthermore, when the distance W1 between a pair of structures 19 is approximately the same as the length of surface P1 in the X direction, the length Lc of support members 20C1 and 20C2 corresponds to half the diagonal length of the heat insulation block 100. For example, as... Figure 7 As shown in (b), the support members 20C1 and 20C2 are located on the diagonal of the furnace top side surface P1 of the insulation block 100. This is a state in which "the entire support members 20C1 and 20C2 are located between a pair of structures 19", preferably "retracted into the inner side of surface P1". The support members 20C1 and 20C2 can be rotated from this position, for example, by extending along the X direction. This corresponds to a state in which "a portion of the support members 20C1 and 20C2 extends to the outer side between the pair of structures 19", preferably "extending to the outer side of surface P1". It should be noted that, as shown below, by setting the length Lc of the support members 20C1 and 20C2 to be less than 1 / 2 of the diagonal length of the insulation block 100, even when the support members 20C1 and 20C2 are not located on the diagonal of surface P1, they can still be made to be "retracted into the inner side of surface P1".

[0158] The length Lc of the support members 20C1 and 20C2 is preferably 95% to 100% of half the length of the diagonal of the surface P1 on the furnace top side of the heat insulation block precursor 30, with a lower limit of more preferably 98% or more. Based on the consideration of maximizing the length of the extended portion, it is most preferably 100%, that is, the length Lc of the support members 20C1 and 20C2 is the same as half the length of the diagonal of the surface P1 on the furnace top side of the heat insulation block precursor 30.

[0159] Figure 8 (a) shows that Figure 4 The support member 20D is a component 22D that is fixed to the shaft 38 after the fixed support member 22A is reversed vertically (so that the upright piece of the L-shaped steel faces downward). As long as the support member 20D can switch between the following two states, namely, the state in which its whole body is located between the pair of structures 19 and the state in which a part of its part extends to the outside of the pair of structures 19, preferably the state in which it is housed inside the surface P1 and the state in which it extends to the outside of the surface P1, the orientation of the L-shaped steel constituting the fixed support member 22D can be reversed vertically, or the L-shaped steel can be changed to a U-shaped steel or a C-shaped steel to form the same support member.

[0160] In this configuration, since the rotational direction of the movable support components 24D1 and 24D2 is unrestricted, obstacles can be avoided more effectively when the heat insulation block 100 is placed between a pair of structures 19 or the existing structure of the furnace top. For example, as Figure 13 The diagram viewed from plane P1 shows the following state: With movable support components 24D1 and 24D2 as shown... Figure 13 In the folded state shown in (a), the entire support member 20D is located between a pair of structures 19. Therefore, by lifting the partition wall from below with the heat insulation block, the support member 20D can be positioned between the pair of structures 19 on the furnace top side of the pair of structures 19.

[0161] Figure 13 (b) shows the following state: In the above state, by rotating the movable support members 24D1 and 24D2, a state is switched in which at least a portion of the movable support members 24D1 and 24D2 extends to the outside of the pair of structures 19. In this state, the support member 20D engages with the pair of structures 19. Thus, the partition wall insulation block is suspended from the pair of structures 19.

[0162] Furthermore, when the distance W1 between a pair of structures is approximately the same as the length of surface P1 in the X direction, for example, as Figure 14As shown in (a) to (c), when the movable support components 24D1 and 24D2 are folded, and surface P1 faces the top of the heating furnace, and the view is taken from the top side, it is sufficient that the support component 20D is completely housed inside surface P1. This can be achieved as follows: Figure 8 The various shapes and sizes shown in (a) to (c).

[0163] Figure 8 (b) is an example in which two metal parts 34A and 34B for fixing blocks are provided on surface P1. That is, as Figure 6 The beam 36 shown is a beam with two blades at different positions along the axial direction. An example of forming an insulation block precursor 30 is achieved by fixing the stacked inorganic fiber aggregate pad 32 using two block-fixing metal parts 34A and 34B. In this case, a more robust insulation block precursor 30 is formed. Furthermore, since the insulation block 100 for the partition wall is supported by two shafts 38A and 38B, the weight of the insulation block precursor 30 is distributed across the two shafts 38A and 38B, thus allowing for a more stable suspension of the insulation block 100 from the furnace top and fixation of its vertical position.

[0164] exist Figure 8 In the support member 20E of form (b), a U-shaped steel 22E with holes corresponding to the positions of the two shafts 38A and 38B is fixed to the shafts 38A and 38B with the open side facing down using nuts. Then, two L-shaped steels 24E1 and 24E2, one of which has a closed end face, are welded to both sides of the U-shaped steel 22E. During welding, the two L-shaped steels 24E1 and 24E2 are in a vertical position with the closed end face facing up. On the closed end face of each of the L-shaped steels 24E1 and 24E2, L-shaped steels 26E1 and 26E2 are installed in a manner that allows them to rotate around a bolt (another shaft).

[0165] Figure 8 The L-shaped steels 26E1 and 26E2 shown in (b) are open along the X direction, corresponding to "a portion of the support member 20E extending to the outside of the pair of structures 19", preferably corresponding to "the support member 20E extending to the outside of surface P1". The L-shaped steels 26E1 and 26E2 are closed along the Y direction, corresponding to "the entire support member 20E located between the pair of structures 19", preferably corresponding to "the support member 20E retracted into the inside of surface P1". Therefore... Figure 8 (b) corresponds to “a portion of the support member 20E extends to the outside of the pair of structures 19”, preferably to “the state of extending to the outside of the surface P1”.

[0166] exist Figure 8In configuration (b), L-shaped steel 24E1 and L-shaped steel 24E2 are installed at the center of U-shaped steel 22E in the Y direction, but the positions of L-shaped steel 26E1 and L-shaped steel 26E2, which are axially supported by another shaft, are offset outward from the center in the X direction by an amount equivalent to the amount occupied by U-shaped steel 22E at the center in the X direction. Therefore, as described above, in the open state along the X direction, the ends of L-shaped steel 26E1 and L-shaped steel 26E2 can extend to the outside of surface P1.

[0167] In addition, such as Figure 9 As shown in (a), when the welding position of L-shaped steel 24G1 to U-shaped steel is set near the front in the Y direction, and the welding position of L-shaped steel 24G2 is set inside in the Y direction, compared to the case where both are installed in the center of U-shaped steel 22E in the Y direction (form 20E), L-shaped steel 24G1 and L-shaped steel 24G2 can be set to be longer. When L-shaped steel 24G1 and L-shaped steel 24G2 are opened in the X direction, the portion extending to the outside of the pair of structures 19, preferably the portion extending to the outside of surface P1, can be longer. Therefore, installation can be performed even at a distance from the existing structure.

[0168] Figure 8 The form of (c) is also an example in which two metal parts 34A and 34B for fixing blocks are formed on the furnace top side surface P1 of the heat insulation block precursor 30.

[0169] exist Figure 8 In configuration (c), on two shafts 38A and 38B, a U-shaped steel 22F with holes at positions corresponding to the shafts 38A and 38B is fixed with its open side facing down using nuts. On the two shafts 38A and 38B extending from the upper surface of the U-shaped steel 22F, L-shaped steels 24F1 and 24F2 are rotatably connected respectively.

[0170] Figure 8 The state of the L-shaped steels 24F1 and 24F2 along the X direction shown in (c) is "the entire support member 20F is located between a pair of structures 19", preferably "the support member 20F is housed inside the surface P1". The state in which the L-shaped steels 24F1 and 24F2 are rotated from this state along the Y direction is "a portion of the support member 20E extends to the outside of the pair of structures 19", preferably "the support member 20F extends to the outside of the surface P1".

[0171] In the support member 20F of this configuration, compared to Figure 8 In the case of support component 20E in (b), the following advantages are available: components 24E1 and 24E2 can be omitted, and additional shafts are not required, thus improving work efficiency.

[0172] Figure 9 The form of (b) is also an example in which two metal parts 34A and 34B for fixing blocks are formed on the furnace top side surface P1 of the heat insulation block precursor 30.

[0173] exist Figure 9 In configuration (b), a U-shaped steel 22H with holes corresponding to the positions of shafts 38A and 38B is fixed with its open side facing downward using nuts. A flat steel 24H extending in the X direction is welded to the central part of the upper surface of the U-shaped steel 22H in the Y direction. Movable support members 26H1 and 26H2 are rotatably provided on the shafts (another shaft) extending towards the furnace top at both ends of the flat steel 24H in the X direction.

[0174] Figure 9 The state of the L-shaped steels 26H1 and 26H2 along the X direction shown in (b) is "a portion of the support member 20H extends to the outside of the pair of structures 19", preferably "the support member 20H extends to the outside of the surface P1". The state of the L-shaped steels 26H1 and 26H2 rotating from this state along the Y direction is "the entire support member 20H is located between the pair of structures 19", preferably "the support member 20H is housed inside the surface P1".

[0175] In this configuration 20H, compared to the support components 20E and 20G, it has the following advantages: it can reduce the number of parts and the number of welding points, thus improving work efficiency.

[0176] Figure 10 The form is also an example in which two metal parts 34A and 34B for fixing blocks are formed on the furnace top side surface P1 of the heat insulation block precursor 30.

[0177] exist Figure 10 In this configuration, U-shaped steel 22I, with holes corresponding to the positions of shafts 38A and 38B, is fixed with its open side facing downward using nuts. A flat steel 24I extending in the X direction is welded to the central portion of the upper surface of the U-shaped steel 22I in the Y direction. Movable support members 26I1 and 26I2, which extend towards the furnace top at both ends of the flat steel 24I in the X direction, are slidably provided in the X direction.

[0178] The movable support members 26I1 and 26I2 are provided with grooves 28I1 and 28I2 having a width in the X direction, which allow them to slide along the grooves in the X direction.

[0179] The state in which L-shaped steels 26I1 and 26I2 slide to the inside in the X direction, that is, the state in which L-shaped steels 26I1 and 26I2 are retracted in the X direction, is "the entire support member 20I is located between a pair of structures 19", preferably "the support member 20I is housed inside the surface P1".

[0180] Furthermore, the state in which the L-shaped steels 26I1 and 26I2 slide to the outside in the X direction, that is, the state in which the L-shaped steels 26I1 and 26I2 extend outward in the X direction, is "a portion of the support member 20I extends to the outside between the pair of structures 19", preferably "the support member 20I extends to the outside of the surface P1".

[0181] <Partition walls and their manufacturing methods>

[0182] The method for manufacturing the partition wall of the present invention is a method for manufacturing the partition wall inside the furnace by suspending the aforementioned partition wall insulation block 100 from the furnace top of the heating furnace. The method includes: an insertion step in which the support member 20 is inserted between a pair of structures 19 with the support member 20 located between them, preferably with the support member 20 housed inside the furnace top side surface P1 of the partition wall insulation block 100; and an engagement step in which, after the insertion step, the support member 20 is engaged with the pair of structures on the furnace top of the heating furnace by switching the support member 20 to extend outward between the pair of structures, preferably to extend outward of the surface P1.

[0183] As described above, multiple partition walls are constructed using heat-insulating blocks 100 between the side walls of the furnace.

[0184] Specifically, heat insulation blocks 100 for partition walls are installed sequentially from both sides of the heating furnace. When constructing the central part of the furnace wall, bottle jacks (hydraulic jacks) are used to carry out the construction while maintaining the specified spacing.

[0185] A typical size of the partition wall insulation block 100 is 1600mm in height and 300mm x 300mm in length and width of the furnace, making it relatively heavy. Therefore, during construction, it is preferable to install a winch on the beam at the top of the furnace to lift the partition wall insulation block 100 to the designated position for installation.

[0186] The heat insulation block 100 for partition walls of the present invention has a support member 20 on the shaft 38, which facilitates the hooking of the winch and improves the workability in this respect.

[0187] As described above, when the partition wall insulation block 100 is lifted to the construction position, the support member 20 is positioned between a pair of structures, preferably housed inside the surface P1 on the furnace top side. In this state, after passing through the pair of structures on the furnace top and reaching the designated position, the support member 20 is switched to extend outward between the pair of structures, preferably outward to the outside of the surface P1, so that it engages with the pair of structures on the furnace top side.

[0188] Regarding the engagement with a pair of structures, as long as the upper and lower positions of the partition wall insulation block 100 can be fixed, it can be in the form of simply hooking the extended part of the support member 20 to the pair of structures on the furnace top side, or the engagement part can be welded.

[0189] In the manufacturing method of the present invention, as a method for neatly arranging the partition wall insulation blocks 100 in a horizontal row, the following method can be adopted: a row of piano wire or the like is laid horizontally beforehand, and then the center positions of the partition wall insulation blocks 100 are aligned. By simply aligning the center positions of the partition wall insulation blocks 100 in this way, the support member 20 and the pair of structures on the furnace top side can be installed in any manner. That is, even if the movable support member 20 is slightly offset from the pair of structures, as long as the center positions of the partition wall insulation blocks 100 are aligned, there is no problem in construction. Therefore, the manufacturing method of the partition wall of the present invention does not require fine adjustments, so it can be said that this method greatly improves workability.

[0190] Thus, the heat insulation block 100 for the partition wall is relatively heavy, and the construction work is large-scale. In addition, there is a pair of structures on the furnace top side that contain various existing structures, and the construction work needs to be carried out while avoiding these structures, making the working environment quite harsh. From this perspective, the partition wall manufacturing method of the present invention has the advantages of shortening the operation time and simplifying the operation steps.

[0191] <Heating Furnace>

[0192] The heating furnace of the present invention includes the aforementioned partition wall. Multiple partition walls can be included. A gap is provided at the bottom of each partition wall to allow a steel plate to pass through. The vertical position of the partition wall is securely fixed using the aforementioned support member 20 and the block fixing metal member 34. Furthermore, since the heat insulation blocks 100 for each partition wall are installed in a compressed state, the reaction force of the inorganic fiber aggregate pad 32 is also used for fixation.

[0193] Industrial availability

[0194] According to the present invention, the installation of the heat insulation block 100 for the partition wall is easy to perform at the top of the furnace, and the disassembly range of the existing structure can be kept small. In particular, since there is no need to align the holes at the top of the furnace and no need to tighten the nuts, the workability is good. In furnaces with poor working environments, the construction can be completed in a shorter time, which can make a significant contribution to improving on-site workability and ensuring the safety of workers.

[0195] Furthermore, even when a pair of structures 19 are provided at the disassembly point on the top of the heating furnace, the same advantages as described above can be provided.

[0196] Symbol Explanation

[0197] 100: Insulation blocks for partition walls

[0198] 19: A pair of structures

[0199] 20, 20A~20I: Support components

[0200] 30: Precursor for heat insulation block

[0201] 32: Inorganic fiber aggregate pad

[0202] 34: Metal parts for fixing blocks

[0203] 36: Liang

[0204] 38: Axis

[0205] P1: The furnace top side surface of the heat insulation block precursor

Claims

1. A thermal insulation block for partition walls, comprising a layered inorganic fiber aggregate pad, and The heat insulation block of the partition wall has a metal fixing part on the surface of the furnace top side of the heating furnace. The heat insulation block for the partition wall also includes a supporting component, which can engage with the metal parts for fixing the block and with a pair of structures on the top of the heating furnace. The support member is configured to switch between two states: a state in which the entire member is located between the pair of structures and a state in which a portion of the member extends outward between the pair of structures.

2. The heat insulation block for partition walls according to claim 1, wherein, The inner surfaces of the pair of structures are respectively positioned at a position approximately coinciding with the edge of the surface on the furnace top side, or at a position further outward than the surface on the furnace top side. The support member is configured to switch between two states: a state in which it is housed inside the surface of the furnace top and a state extending to the outside of the surface of the furnace top.

3. The heat insulation block for partition walls according to claim 1, wherein, The inner surfaces of the pair of structures are respectively disposed on the inner surfaces of the surfaces on the furnace top side. The support member is configured to switch between two states while being housed inside the surface of the furnace top side: a state located between the pair of structures and a state extending to the outside between the pair of structures.

4. The heat insulation block for partition walls according to claim 1, wherein, The support member is rotatably engaged with a shaft extending from the block fixing metal member toward the furnace top of the heating furnace. The support member is configured to switch between two states by rotating about the axis: a state located between the pair of structures and a state extending to the outside of the pair of structures.

5. The heat insulation block for partition walls according to claim 1, wherein, The support member includes: a fixed support member connected to a shaft extending from the block fixing metal member toward the furnace top of the heating furnace; and at least one movable support member connected to the fixed support member. The movable support member is rotatably engaged with another shaft extending from the fixed support member toward the top of the heating furnace. The movable support component is configured to switch between two states by rotating about the other axis: a state located between the pair of structures and a state extending to the outside of the pair of structures.

6. The heat insulation block for partition walls according to claim 1, wherein, The support member includes: a fixed support member connected to a shaft extending from the block fixing metal member toward the furnace top of the heating furnace; and at least one movable support member connected to the fixed support member. The movable support member is configured to switch between two states by sliding relative to the fixed support member: a state located between the pair of structures and a state extending to the outside of the pair of structures.

7. The heat insulation block for partition walls according to claim 1, wherein, The support component is suspended from the pair of structures by engaging with them.

8. A partition wall having a plurality of heat-insulating blocks for partition walls according to any one of claims 1 to 7 in the furnace width direction.

9. A heating furnace comprising the partition wall according to claim 8.

10. A method for manufacturing a partition wall, comprising suspending a partition wall insulation block according to any one of claims 1 to 7 from the pair of structures on the top of the heating furnace to manufacture the partition wall inside the furnace, comprising: In the insertion process, with the support member positioned between the pair of structures, the support member is inserted between the pair of structures. as well as The engaging process involves, after the insertion process, switching the support member to extend outwards between the pair of structures, thereby engaging the support member with the pair of structures.

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