JPH0664096U - Insulation structure - Google Patents

Abstract

(57) [Abstract] [Purpose] As a means for connecting the ceramic fiber laminate and its support, a part of the support metal fitting is pierced into the strip blanket constituting the ceramic fiber laminate, and the support metal fitting is attached. To provide a heat insulating structure in which a member is fixed to a support so that it cannot be freely attached or detached. [Structure] A large number of tooth-shaped projections provided on the support metal fitting are pierced into the facing mouths of a plurality of strip-shaped blankets forming the ceramic fiber laminate, and the support metal fitting serves as a support for supporting the ceramic fiber laminate. The length of the tooth-like protrusion is less than half the length of the side in the insertion direction of the ceramic fiber laminate, and the direction of the piercing direction of the tooth-like protrusion and the direction of the force supporting the laminate is 45 degrees to 135 degrees. The heat insulation structure is characterized in that the laminated body is supported from both sides by the support metal fittings at the opening side, which is different in the range of degrees.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a heat insulating structure having a structure in which a ceramic fiber laminated body and a supporting body which supports the ceramic fiber laminated body are connected by a supporting fitting provided with a large number of tooth-shaped projections.

[0002]

[Prior art]

 Traditionally, ceramic fiber has been widely used as an insulating material for industrial furnaces due to its excellent characteristics such as light weight, high heat resistance, and low thermal conductivity.

Although there are various products made of ceramic fibers, sheet-shaped products such as blankets and felts have been mainly used as heat insulating materials for industrial furnaces.

When a blanket or felt is used as a heat insulating material for a furnace wall, it is usually pierced with heat-resistant metal pins pre-installed in the furnace casing until it has an appropriate thickness and fixed with washers or nuts. It was This method is usually called the layer lining method.

However, in recent years, the block lining method has been widely adopted in order to cope with high temperature furnaces and shorten the time required for construction. The block lining method differs from the layer lining method in that a block-shaped heat insulating material made by cutting a blanket into an appropriate size and stacking it in advance is attached to the furnace casing by an appropriate attachment means to build the oven wall in a short time. It has the characteristics that can be done.

As such a heat insulating structure, a heat insulating structure as shown in FIGS. 9 to 11 is known.

The heat insulating structure shown in FIG. 9 is obtained by joining a ceramic fiber laminate 2 and a support 1 attached to a furnace casing with an adhesive 3.

In the heat insulating structure of FIG. 10, the support rod 5 inserted into the ceramic fiber laminated body 2 is supported by the support metal fitting 4 previously attached to the support body 1.

The heat insulating structure shown in FIG. 11 is formed by piercing the L-shaped pin 1 a attached to the support 1 with the strip blanket 6 while laminating the ceramic fiber laminate 2.

[0010]

[Problems to be solved by the device]

 Such a conventional heat insulating structure has the following problems.

The heat insulating structure shown in FIG. 9 has a simple structure, is easy to manufacture, and is inexpensive. On the other hand, since the ceramic fiber laminated body 2 is supported by the support 1 only by the adhesive 3, The agent 3 and the ceramic fiber laminate 2 are easily peeled off at the bonding surface, and there is a problem in reliability during use.

With respect to the heat insulating structure shown in FIG. 10, it is difficult to form long holes at accurate positions in the ceramic fiber laminate 2 which is easily deformed. Further, in this heat insulating structure, it is difficult to connect the support rod 5 to the support fitting 4 because the support fitting 4 cannot be seen from the outside when the support fitting 4 enters the ceramic fiber laminate 2. For this reason, it can be mechanically strongly supported and its reliability in use is satisfied, but it has problems that it is difficult and expensive to manufacture and construct.

The heat insulating structure of FIG. 11 has a simpler structure than that of FIG. 10 and satisfies the reliability in use, but like the heat insulating structure of FIG. 10, it is difficult and expensive to manufacture. .

Further, a disadvantage common to the cases of FIGS. 10 and 11 is that the support rod 5 and the L-shaped pin 1a must be inserted over the entire length of the ceramic fiber laminate 2 in the laminating direction, or otherwise. It does not mean that all the strip blankets 6 forming the ceramic fiber laminate 2 are supported.

If this condition is not satisfied, there is a risk that the strip blanket 6 that is not supported during use may fall off. Similarly, the support rod 5 and the L-shaped pin 1a are easily bent by their own weight during use, and as a result, the heat insulating structure is easily deformed. Especially when it is used for the ceiling part, a gap is created on the inner surface of the ceramic fiber laminate 2 inside the furnace, and a high-temperature flame penetrates into the inside of the furnace to reduce the heat insulation effect. The structure itself deteriorates from the inside, leading to the dropout. In order to avoid this, the supporting rod 5 and the L-shaped pin 1a have the disadvantage that they need to be as thick as possible and are expensive.

The purpose of the present invention is to make up for the shortcomings of these prior arts. As a means for connecting the ceramic fiber laminate and its support, the strip-shaped blanket forming the ceramic fiber laminate is used. Another object of the present invention is to provide a heat insulating structure in which a part of the support metal fitting is pierced and the support metal fitting is fixed to the support body so that it cannot be freely attached or detached.

[0017]

[Means for Solving the Problems]

 Therefore, in order to achieve this object, the present invention proposes that a large number of tooth-shaped projections provided on a support metal fitting are pierced into the facing mouths of a plurality of strip-shaped blankets constituting the ceramic fiber laminate, The metal support is provided on the support that supports the ceramic fiber laminate, and the length of the tooth projection is less than half the length of the side of the ceramic fiber laminate in the insertion direction. The main point is a heat insulating structure characterized in that the direction of the force supporting the laminated body differs from the direction of 45 to 135 degrees, and the laminated body is supported by the support metal fittings from both sides at the mouth end surface.

Further, a preferred embodiment of the present invention is as follows. (1) The support fitting and the support are fixed by a detaching mechanism. (2) The support overlaps so as to cover the support fitting. (3) The ceiling portion and the side surface portion of the support are connected by a hinge, and the angle of the support is maintained at an arbitrary angle of 0 degree or more and 180 degrees or less by the force of the spring. (4) The support and the support fitting are integrally formed.

[0019]

【Example】

 Next, an embodiment of the present invention will be described in detail.

Embodiment 1 FIG. 1 shows an example of the present invention in which the support body and the support metal fitting attached to the furnace casing cannot be removed.

For the ceramic fiber laminated body 35, for example, strip brackets 16 each having a length and width of 300 mm are cut out from a large blanket having a thickness of 25 mm, for example, 14 pieces of the brackets 16 are laminated, and are bound by a thread while compressing each side. Are made to be 300 mm each.

Each strip-shaped bracket 16 constituting the ceramic fiber laminate 35 has a wood mouth surface 30 formed by the wood mouth, for example, 300 × 300 mm. A large number of tooth-shaped projections 9 of the support fitting 8 are pierced into the mouth end surface 30. Then, the support 7 made of an iron plate or punching metal is placed on the support metal fitting 8 and joined and fixed by electric welding or eyelet at the joint portion 12. Of course, an adhesive may be used together to fix the support 7 and the ceramic fiber laminated body 35, and the attachment to the furnace casing may be performed by a conventionally known method.

The support 7 and the support metal fitting 8 may be made separately and later bonded at the joint portion 12, or the support body 7 and the support metal fitting 8 may be integrally punched in the state of being bonded at the joint portion 12. It is also possible to make the toothed protrusion 9 into the ceramic fiber laminated body 35 while bending it at a right angle along a line corresponding to the joint portion 12 later.

In FIG. 2, the support fitting 8 comprises a side surface portion 13 and, in the illustrated example, 14 tooth-like projections 9 having a height of 40 mm, for example. The angle α formed by these two parts is 90 degrees. The angle α of 90 degrees is most effective for supporting the ceramic fiber laminated body 35, and is preferably in the range of 45 degrees to 135 degrees.

The longer the length of the tooth-like projection 9 is, the larger the holding effect of the ceramic fiber is. However, if the length is too long, the tooth-like projection 9 is easily bent and is shorter than half the length of the side in the insertion direction of the ceramic fiber laminate 35. Is preferred, but more can be done.

The number of tooth-shaped projections 9 is set to be equal to or larger than the number of strip-shaped blankets 16 constituting the ceramic fiber laminated body 35, and at least one tooth-shaped projection 9 is stabbed in each strip-shaped blanket 16. However, it is not necessarily limited.

FIG. 3 shows an example of another supporting metal member, and the supporting metal member 11 is formed by integrally punching a plurality of rows of tooth-shaped projections 10 from a single metal plate. The tooth-shaped projections 10 of the support fitting 11 are also set at an angle α, like the support fitting 8.

Embodiment 2 Embodiment 2 is an example in which the support body and the support metal fitting attached to the furnace casing are fixed by a simple detaching mechanism.

In FIGS. 4 and 5, along the groove 15 of the support body 14, the protrusion 17 a of the support fitting 17 can be fitted in. The ceramic fiber laminated body 35 is, for example, 14 blanket blanks 16 of 25 mm, which are stacked and compressed and bound with a thread so that one side is 300 mm.

Fourteen tooth-like protrusions 18 of the support metal fitting 17 are pierced on a 300 × 300 mm wood mouth surface 30 formed by the wood mouth of the strip-shaped blanket 16 forming the ceramic fiber laminate 35. Then, the support 14 is overlapped so as to cover it from above, and the projections 17a of the support fitting 17 are fitted into the grooves 15 of the support 14 and integrally fixed.

Example 3 Example 3 is an example having a desorption mechanism different from that of Example 2. 6 and 7, the protrusion 22 provided on the support fitting 20 is a return protrusion, and the support 19 is provided with a window-shaped opening 23 so that the protrusion 22 fits snugly.

The materials are selected so that the support 19 and the support fitting 20 have an appropriate deflection. For example, when it is made of an iron plate having a thickness of 1.5 mm, it is possible to form a structure in which the projection 22 and the opening 23 are fitted to each other by the force of human being and are not naturally separated.

The tooth-like projections 21 of the support fitting 20 are pierced into the wood mouth surface 30 formed by the mouth of the strip-shaped blanket 16 forming the ceramic fiber laminated body 35, and the support body 19 is pushed over the wood mouth surface 30 to push it. The support 19 and the support fitting 20 are easily fixed.

Embodiment 4 This is an example in which the support 33 attached to the furnace casing is fixed by a simple detaching mechanism so as to cover the support fitting 32, and the side surface of the support 33 can be arbitrarily opened and closed.

In FIG. 8, the support 33 is composed of a ceiling portion 24 and side surface portions 27, and at least one of the two side surface portions 27 is joined by a hinge 40 at a joint portion 25 with the ceiling portion 24. The angle θ formed by the two is maintained at an arbitrary angle of 0 ° or more and 180 ° or less, preferably about 80 ° or more and 180 ° or less by the force of a spring (not shown).

The side surface portion 27 joined by the hinge 40 can be easily opened by an external force at any angle from 0 degree to θ or less, and returns to the original angle θ again when the external force is released.

At this time, if the arbitrary angle is smaller than the angle θ, the side surface portion 27 spreads outward, and when this is applied as a heat insulating material for the furnace, a gap is formed between the adjacent heat insulating materials. . The angle θ is optimally 90 degrees. If the angle θ is larger than this angle, there is an inconvenience that the side portion 27 must be opened by hand when the support fitting 32 is pushed into the supporting body 33, but it is functionally different. There is no.

A hole 26 is opened in the side surface portion 27, and the size of the hole 26 is such that the projection 28 provided on the support fitting 28 fits snugly. Further, the tip end portion 31 of the side surface portion 27 and the tip end portion 38 of the support fitting 32 are bent to the outside and the inside by, for example, about 20 degrees, and by doing so, the support body 33 and the support fitting 32 are fixed. When it is done, the operation becomes easier.

A large number of protrusions 29 of the support fitting 28 are pierced into the mouth of the strip-shaped blanket.

[0040]

[Effect of device]

 As is clear from the above description, this invention has the remarkable effects described below. (1) Since each strip blanket that constitutes the ceramic fiber laminate is supported by a large number of tooth-shaped projections, the support is reliable and there is no fear of falling off during use. (2) Since the tooth-shaped projection is pierced into the mouth of the strip-shaped blanket to support the strip-shaped blanket, even a relatively short tooth-shaped projection can be effectively supported. (3) Furthermore, since the length of the tooth projection is short, there is little danger of bending due to its own weight even during hot work, material costs are easy, and it can be used safely on the ceiling. (4) The short tooth projection has another advantage that it is easy to pierce, and the tooth projection can be easily pierced at an accurate position of the ceramic fiber laminate. (5) If the support and the support metal can be freely attached and detached, it is possible to separate the support and the support metal in advance and attach them to the furnace casing while visually checking the support first. It is possible to eliminate inefficient and incomplete work such as installation work in the state of being groped by being blocked by the ceramic fiber laminated body integrated with the support metal fitting. (6) By attaching the support in advance by an appropriate means and then attaching the ceramic fiber laminate pierced by the support metal fitting to the support, accurate and efficient construction can be performed. (7) Similarly, even in the case of repair, the support fitting integrated with the ceramic fiber laminated body can be easily separated from the support from the inside of the furnace, so that the required repair can be minimized. Can be done quickly. (8) The direction in which the tooth projection penetrates and the direction of the force that supports the laminated body differ within the range of 45 to 135 degrees, and since the laminated body is supported by the toothed projection from both sides, the hooking part and the tip end The open shape is not required and the stack can be supported over the wide surface of the dentate. Moreover, the strength of the laminated body portion to which the supporting force is applied does not decrease even if the tooth projection sticks. For these reasons, the supporting force can be very strong. As a result, it can be used safely on the ceiling.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing the support fitting of FIG.

FIG. 3 is a perspective view showing an example of another support fitting.

FIG. 4 is a front view showing a second embodiment of the present invention.

5 is a side view of the second embodiment shown in FIG.

FIG. 6 is a front view showing a third embodiment of the present invention.

7 is a side view of the third embodiment shown in FIG.

FIG. 8 is an exploded perspective view showing a fourth embodiment of the present invention.

FIG. 9 is a side view showing a conventional example.

FIG. 10 is a side view showing a conventional example.

FIG. 11 is a side view showing a conventional example.

[Explanation of symbols]

8, 17, 20, 32 Support metal fittings 9, 10, 18, 21, 29 Teeth 35 Ceramic fiber-laminate 16 Strip blanket 7, 14, 19, 33 Support

Claims (1)

[Scope of utility model registration request] 1. A large number of tooth-shaped projections provided on a support fitting are pierced on the facing mouths of a plurality of strip-shaped blankets forming a ceramic fiber laminate,
The support metal is provided on the support that supports the ceramic fiber laminated body, the length of the tooth-like protrusion is half the length of the side in the insertion direction of the ceramic fiber laminated body, and A heat insulating structure characterized in that the direction of the force for supporting the laminated body varies in the range of 45 degrees to 135 degrees, and the laminated body is supported from both sides by supporting metal fittings at the mouth end surface.