JP3197027B2 - Heating furnace partition unit and partition wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a partition wall for partitioning a combustion chamber of a heating furnace and a partition wall unit used for forming the partition wall.

[0002]

2. Description of the Related Art In a process heating furnace or the like used for heating a large amount of fluid such as a gasoline reformer, a partition extends upward from a floor of the heating furnace to partition an adjacent combustion chamber. Walls are used. FIG. 5 (A)
FIG. 5B is a schematic configuration diagram of a box-vertical tube-vertical combustion type process heating furnace called a wicket type, and FIG.
5A is a schematic cross-sectional view taken along the line BB of FIG. 5A, and FIG. 5C is a schematic configuration diagram of a box-horizontal tube-horizontal combustion process heating furnace called a double-up fired type. Is shown. In this type of process heating furnace, as a partition wall d that partitions between adjacent combustion chambers a, b, and c, a partition wall having a structure in which refractory bricks as shown in FIG. Is used. FIG. 5
In (A) to (C), e denotes a heating tube through which a fluid to be heated flows, and f denotes a burner flame. Conventionally, in a partition wall of a heating furnace of this type, a partition wall made of a refractory brick is formed by an American Petroleum (API) of the United States.
umInstitute) Standard No. 560 "Fired Heaters for
General Refinery Services "[first published in January 1986].

[0003]

However, the refractory brick partition wall has the following problems.

[0004] In a partition wall made of refractory bricks conforming to the API standard, no reinforcing members such as columns and beams are arranged inside the partition wall, and the refractory bricks are simply joined with mortar. Further, the partition wall and the wall of the heating furnace were not particularly connected to each other. For this reason, in Japan, where there are many earthquakes, a partition wall may fall when a large earthquake occurs.

Since the weight of the refractory brick is heavy, the entire weight of the partition wall made of the refractory brick is very heavy, and the beams and the foundation of the floor of the heating furnace to which the partition wall is fixed also endure the weight of the partition wall. And the construction cost was high.

[0006] Since the partition wall made of fire-resistant bricks lacks earthquake resistance, there is a limitation in increasing the height. Incidentally, the API standard stipulates that a partition wall made of a refractory brick is less than 7.3 m. Therefore, depending on the structure of the heating furnace, the combustion chambers interfere with each other, and it is difficult to control O2 in each combustion chamber, so that many burner dampers must be operated.

An object of the present invention is to provide a partition wall for a heating furnace which is lighter in weight than a partition wall made of fire-resistant bricks and which is excellent in earthquake resistance and a partition wall unit for forming the partition wall. It is in.

Another object of the present invention is to use a ceramic fiber wall member made of a ceramic fiber blanket or a ceramic fiber board without damaging the ceramic fiber wall member. An object of the present invention is to provide a partition wall and a partition wall unit having a structure that can be reliably supported.

[0009]

Means for Solving the Problems The inventions of claims 1 to 5 are:
Claims 5 and 6 provide a partition unit of a heating furnace which is used to constitute a partition wall of a heating furnace which extends upward from a floor portion of the heating furnace and partitions adjacent combustion chambers.
A partition wall configured using a partition wall unit is provided.

The present invention provides two columnar members having fire resistance, a plurality of beam members having fire resistance, and a plurality of ceramic members.
A partition wall unit is configured from the fiber wall component. The two columnar members are arranged at predetermined intervals in a direction in which the heating furnace is partitioned, and the lower ends are fixed to the floor. The plurality of beam members are fixed between the two columnar members and are arranged at intervals in the vertical direction. Then, a plurality of ceramic fiber wall component members are arranged so as to form a unit partition wall portion between the two columnar members, and this is fixed to the beam member.

In the present invention, the columnar member and the beam member are used for covering.
Coated with a ceramic fiber blanket.
And a plurality of ceramic fiber wall components
Ceramic fiber blanket for multiple wall configurations
Using Then, two adjacent beam members
At least one of the columnar member and the beam member in the region to be sandwiched;
Fixed to multiple wall ceramic fibers
Place a reinforcing rod structure to reinforce the blanket
You. And ceramic fiber blocks for multiple wall configurations
Arrange the racket so as to sandwich the reinforcing rod structure
I do. Ceramic fiber bran for multiple wall configurations
The blanket is a ceramic fiber blanket for coating
Reinforced with heat resistant stat pins
Configuration of two walls opposing each other on both sides of the rod structure
Ceramic fiber blankets are common
Are connected to each other using a pin. Further, the columnar member, the beam member, and the rod member constituting the reinforcing rod structure can be connected to each other with a fixed structure that allows thermal expansion and thermal contraction of each member.

According to the present invention, a ceramic fiber wall is provided.
Components mainly from ceramic fiber boards
Can be configured. In this case, a plurality of beam members
Ceramic fiber boards on opposite sides
Is formed with a fitting groove into which the end of the fitting is fitted. In addition, columnar members and
Ceramic fiber bras for covering exposed parts of beam and beam members
Cover with blanket. And the two adjacent horizontally
Gap between two ceramic fiber boards
Closed by ceramic fiber blanket
Go. Then, two opposing ceramics for closing the gap
.For closing two gaps between fiber blankets
For reinforcing ceramic fiber blankets
Position the rod. The above-mentioned partition unit is connected and added.
Construct the partition wall of the heating furnace. In that case, the outermost
The columnar member may be fixed to the wall of the heating furnace.

[0013]

The ceramic fiber blanket and ceramic fiber board used in the present invention are made of ceramic fiber wall components, as compared with firebricks.
The weight per unit volume is much lighter. However, ceramic fiber blankets and ceramic fiber boards have lower mechanical strength than refractory bricks, and if the dimensions are too large, there is a risk that the mounting portion may be damaged by its own weight. In addition, there is a possibility that the mounting portion may be damaged due to the force of the hot air generated in the furnace.
Therefore, as in the present invention , a plurality of beam members are provided at predetermined intervals in the vertical direction between two columnar members, and a ceramic
When the fiber wall component is fixed to the beam members, the spacing between the two adjacent beam members is appropriately set, so that the ceramic fiber blanket between the beam members is set.
Or the weight of the ceramic fiber board
・ Fiber blanket or ceramic fiber
The force applied to the mounting portion of the card can be set within an allowable range that does not cause damage. Therefore, by using the partition unit of the present invention, a partition wall which is lighter in weight than a refractory brick partition wall and has the necessary mechanical strength can be formed by a ceramic fiber blanket or a ceramic fiber blanket.
It can be configured using a fiber board . Further, according to the present invention, since the weight of the partition wall is reduced, there is no restriction on the height as compared with the partition wall made of firebrick.

[0014] The columnar member and the beam member when covered with a ceramic fiber blanket, to protect the columnar member and the beam member from the polarizing heating. In particular, ceramics
Ceramic fiber as a fiber wall component
If a blanket is used, placing a reinforcing rod structure that reinforces the ceramic fiber blanket in the area sandwiched by two adjacent beam members can significantly increase the mounting strength of the ceramic fiber blanket. The ceramic fiber blanket does not break even if the distance between the beam members is increased.
It is needless to say that the ceramic fiber blanket may be fixed to the reinforcing rod structure.
In the present invention, the reinforcing rod structure is made of ceramic from both sides.
・ Because it is sandwiched between fiber blankets,
The pad structure can be protected from uneven heating. When the columnar member, the beam member, and the rod member constituting the reinforcing rod structure are connected to each other by a fixed structure that allows thermal expansion and thermal contraction of the respective members, the columnar member, the beam member, and the reinforcing rod structure are combined. A large stress is not generated in the fixing portion of each member due to the thermal expansion and contraction of the constituent rod members, and the life of the structure supporting the ceramic fiber wall member can be greatly extended.

When a ceramic fiber board is mainly used as a ceramic fiber wall component, an end of the ceramic fiber board is fitted to a mutually facing side surface of a plurality of beam members. When the groove is formed, the ceramic fiber board can be easily mounted simply by fitting the ceramic fiber board into the fitting groove . In this case, if the gap between the two ceramic fiber boards adjacent in the lateral direction is closed by the gap closing ceramic fiber blanket, the heat shielding performance of the unit partition wall can be improved. Two opposing ceramic fiber brass for closing the gap
Two ceramic fibers for closing the gap between the blankets
・ If a reinforcing rod is installed to reinforce the blanket,
Damaged ceramic fiber blanket for clogging
I will not do it. When the partition units of the heating furnace are configured by connecting the partition units, the number of the partition units to be connected can be appropriately selected, and a partition wall having a required length can be easily formed. Both of the partition wall unit using the partition wall unit and ceramic fiber board using Naose ceramic fiber blanket may constitute a partition wall by mixing. In the case of constituting the unit partition wall portion located on the outermost side of the partition wall is not necessary to use always be specifications Setsukabe unit, the beam fixing member for fixing the beam member in the wall of the furnace The beam member may be fixed between the column member and the adjacent columnar member, and the ceramic fiber wall component may be fixed to the beam member. Further, when the outermost columnar member is fixed to the wall of the heating furnace, the fixing strength and the earthquake resistance of the wall member can be greatly increased.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a state where a partition wall unit 1 using a ceramic fiber blanket as a ceramic fiber wall component is mounted inside a heating furnace. FIG. 2 shows a frame structure when a partition wall is formed using the partition unit shown in FIG.
FIGS. 3A to 3D are enlarged views of the portions indicated by A to D in FIG. In these figures, reference numerals 2a to 2f denote pillar members made of fire-resistant steel, respectively, and the pillar members 2a to 2f are arranged at predetermined intervals in a direction in which the heating furnace is partitioned by a partition wall.
Each of the columnar members 2a to 2f includes a tubular columnar body 21 and a plate-like mounting plate 22 fixed to the lower end of the columnar body 21 by welding. The columnar main body 21 includes a large-diameter portion 21a on the lower side, a reduced-diameter portion 21b thereon, and a small-diameter portion 21c thereon further so as to position the center of gravity downward. The column-shaped main body 21 has a pair of through-holes 23, 23, each of which is opened at four positions separated by substantially the same distance in the vertical direction in the direction of partitioning the heating furnace.
[See FIGS. 3A and 3B]. As shown in FIG. 3 (B), a support pipe 3 made of fire-resistant steel is inserted into each of the pair of through holes 23 of the columnar main body 21 of the columnar members 2a and 2f on both outer sides, as shown in FIG. Yes,
As shown in FIG. 3 (A), a support pipe 4 made of fire-resistant steel projecting in both directions is inserted into each of the pair of through holes 23 of the columnar main body 21 of the other columnar members 2b to 2e. A pair of through holes 31 and 41 are formed in the support tubes 3 and 4 in a direction perpendicular to the axis thereof. Although not shown, each of the columnar members 2a to 2f has a pair of through holes 31, 4 in a direction orthogonal to the direction in which the pair of through holes 23, 23 opens.
A pair of through-holes (not shown) are formed so as to align with one. The support tubes 3 and 4 have bolts 5 (see FIG. 1) inserted into a pair of through holes (not shown) formed in the columnar main body 21 and a pair of through holes 31 and 41, and a nut is provided at the tip of the bolt protruding from the through hole. Are fixed to the columnar main body 21 by screwing. Bolt through-holes are formed at four corners of the mounting plate 22 of the columnar members 2a to 2f. The bolt through-holes are fitted to bolts embedded and fixed on the floor of the heating furnace, and nuts are screwed to tips of the bolts. Then, the columnar member 2a
To 2f are fixed to the floor. In this embodiment, the distal ends of the columnar members 2a and 2f located on both sides are slightly longer, and a mounting bracket 6 for fixing the partition wall to the wall W of the heating furnace is fixed to this distal end. Have been. One end of the mounting bracket 6 is buried and fixed in the wall portion W of the heating furnace, and the ring-shaped portion at the other end is fitted to the tip of the columnar members 2a and 2f.

Between the two adjacent columnar members, four beam members 7 are fixed so as to straddle the two columnar members at an interval in the vertical direction. Each beam member 7 is fitted to the protruding portions 32 and 42 of the support tubes 3 and 4 described above. A fixed end 7a, which is one end of the beam member 7, has support tubes 3 and 4 attached thereto.
A pair of through-holes are formed so as to align with a pair of through-holes provided in the projecting portions 32 and 42. A bolt 8a is inserted into these two pairs of through-holes, and a nut 8b is provided at the tip of the bolt 8a. The fixed ends 7a are fixed to the support tubes 3 and 4 by being screwed together. A free end 7b, which is the other end of the beam member 7, is fitted to the protrusion 42 of the support tube 4 so as to be movable in the axial direction. This fixing structure using the support tubes 3 and 4 absorbs thermal expansion and contraction between the columnar member and the beam member.

Between two adjacent beam members 7, a reinforcing rod structure 10 formed by combining fire-resistant steel rod members 9 in a cross-girder shape is arranged. As shown in FIG. 3C, the upper end of the vertical rod member 91 extending in the vertical direction is movably fitted into a through hole provided in the beam member 7 located above, and the lower end of the vertical rod member 91 is It is fitted to a tubular fixing part 11 fixed to a beam member 7 located below and fixed by welding or the like. In the middle of the vertical rod member 91, two guide plates 12 each having a through hole 12a through which a horizontal rod member 92 extending in the horizontal direction is movably penetrated are fixed at intervals. This fixing structure including the members 11 and 12 fixes the reinforcing rod structure 10 to the beam member 7 so as to allow thermal expansion and thermal contraction. In this embodiment, the reinforcing rod structure 10 is fixed to the beam member 7. However, the reinforcing rod structure 10 is fixed using the same fixing structure (by fixing the horizontal rod structure to the columnar member). Of course, 10 may be fixed to the columnar member.

Below the lowermost beam member 7,
As shown in FIG. 1, the castable refractory layer 13 is arranged so as to fill the gap between the floor and the floor. Columnar member 2a
2f and the beam member 7 are each wrapped with two elongated ceramic fiber blankets 14, 14 so as to cover most of the exposed portions. In the example, Toshiba Monoflux Co., Ltd.
A ceramic fiber blanket having a heat resistance temperature of 1400 ° C. and a weight per unit volume of 130 kg / m 3, which is sold under the product name of No. 1, was used. The two coating ceramic fiber blankets 14, 14 are made of Inconel 60
Are connected to each other by using heat-resistant stud pins 15 made of a single material. Further, between the two beam members 7 covered by the coating ceramic fiber blankets 14, 14, the ends overlap with the coating ceramic fiber blankets 14, and the two beam members 7 overlap each other. A rectangular wall-forming ceramic fiber blanket 16 is fixed using stud pins 15 so as to fill the space. Two wall-forming ceramic fiber blankets 16, 16 which are opposed to each other with the reinforcing rod structure 10 interposed therebetween are assembled and connected to each other using common stud pins 15. ing. The laterally adjacent ceramic fiber blankets 16 for wall construction are also interconnected using stud pins 15. In FIG. 1, the ceramic fiber blanket for coating and the ceramic fiber blanket for forming the wall around the columnar member 2b are removed for easy understanding of the structure.

In this embodiment, the ceramic
The fiber blanket 14 and the wall-forming ceramic fiber blanket 16 each constitute a ceramic fiber wall-forming member, and the coating ceramic fibers are interconnected by stud pins 15. The blanket 14 and the ceramic fiber blanket 16 for forming the wall constitute a unit partition wall. In addition, two columnar members 2
a, 2b, a beam member 7 therebetween, a reinforcing rod structure 10, and a ceramic fiber blanket 14, 1
6 constitute a partition wall unit.

In this embodiment, the dimensions of the wall-forming ceramic fiber blankets 16 are not so large, and the reinforcing rod structure 10 is connected to two opposed wall-forming ceramic fibers. Blanket 1
Since they are arranged between 6, 6 and 16, even when the interval between the beam members 7 is considerably long, a large force is applied to the mounting portion (the portion fixed by the stud pin 15) of the ceramic fiber blanket. In addition, even if the ceramic fiber blanket 16 for the wall portion is lengthened to a certain extent, the ceramic fiber blanket is not easily broken.

If the interval between the beam members 7 is reduced, it is not necessary to provide the reinforcing rod structure 10. If the beam members 7 and the columnar members are directly covered at the ends of the wall-forming ceramic fiber blankets 16, there is no need to use the coating ceramic fiber blankets 14. Although the length of the wall-forming ceramic fiber blanket 16 is shorter than the dimension between two adjacent beam members 7, the wall-forming ceramic fiber blanket 16 is formed of two or more beams. It may be long so that it is arranged straddling the member.

FIG. 4 is a schematic perspective view of another embodiment of the partition wall unit of the present invention using a ceramic fiber board as a ceramic fiber wall component. In this embodiment, the same parts as those in the above embodiment described with reference to FIGS. 1 to 3 are denoted by the reference numerals obtained by adding 100 to the reference numerals shown in FIGS.
In the columnar member 102 used in this embodiment, the cross-sectional shape of the columnar main body 121 has an H shape. The beam members 107a and 107c disposed at the upper and lower ends have a U-shaped cross section, and the other beam members 107b have an H-shaped cross section. The upper end beam member 107a is arranged so that the opening 107a1 faces downward, the lower end beam member 107d is arranged so that the opening 107d1 faces upward, and the beam members 107b and 107c (not shown) are arranged vertically. Are arranged such that the openings 107b1 face each other. The openings of these beam members 107a to 107d form fitting grooves for fitting the ends of the ceramic fiber board 116 to fix the ceramic fiber board 116. Also, the columnar member 102 and the beam members 107a to 107a
The fixing structure with the 07d is the same as the fixing structure shown in FIGS. 3 (A) and 3 (B). The ceramic used in this example
The fiber board 116 has a heat resistance temperature of 1400 ° C. and a weight per unit volume of 180 kg sold by Toshiba Monoflux Corporation under the name of FFX Board (trademark).
/ M3 ceramic fiber board. Also in this embodiment, the beam member and the columnar member are covered with the ceramic fiber blanket 114 for coating, and the edge of each ceramic fiber blanket 114 for coating is attached to the ceramic fiber board 116. It is fixed using stud pins 115. In the present embodiment, a belt-like ceramic for closing a gap is provided between two adjacent ceramic fiber boards 116, 116.
It is closed with a fiber blanket 117. 1
Reference numeral 09 denotes a reinforcing rod for reinforcing the ceramic fiber blanket 117.

In the present embodiment, the coating ceramic
Fiber blanket 114, ceramic fiber board 116 and gap closing ceramic fiber
The blanket 117 constitutes the ceramic fiber wall component, and the ceramic fiber
Blanket 114, ceramic fiber board 1
16 and the gap closing ceramic fiber blanket 117 are fixed to each other to form a unit partition wall. Then, the columnar member 102, the beam members 107a to 107
d, ceramic fiber blankets 114, 11
7, the ceramic fiber board 116 and the stud pin 115 constitute a partition unit.

[0025]

According to the present invention , since a partition wall having a lighter weight than a partition wall made of refractory bricks can be made, it is necessary to spend a large amount of money on the steel frame and foundation work on the floor of the heating furnace. Absent. The partition wall unit of the present invention is easy to assemble, and is used as a wall member made of ceramic fiber.
Ceramic fiber blanket or ceramic fiber blanket
The use of fiber boards has the advantage that the required mechanical strength can be obtained. Further, according to the present invention, since the weight of the partition wall is reduced, there is an advantage that there is no particular restriction on the height as compared with the partition wall made of firebrick. Further , according to the present invention , since the columnar member and the beam member can be protected from high temperatures, there is an advantage that the life of the partition wall is extended. According to the present invention ,
By arranging the reinforcing rod structure, the mounting strength of the ceramic fiber blanket can be greatly increased, and the advantage is that the ceramic fiber blanket will not be damaged even if the spacing between the beam members is increased. is there. In particular, according to the present invention, the reinforcing rod
Sandwiched between ceramic fiber blankets from the side
Therefore, it is possible to protect the reinforcing rod structure from uneven heating.
Yes, ceramic fiber blanket mounting strength
There is an advantage that can be maintained. More
According to Ming, columnar members, beam members and thermal expansion and a ceramic fiber-made wall components without large stress is generated in the fixing portion of the member by a thermal contraction of the rod member constituting the reinforcing rod structure Can greatly extend the life of the structure supporting the.

Further, according to the present invention , when a ceramic fiber board is mainly used as a ceramic fiber wall component, there is an advantage that the ceramic fiber board can be easily attached. Again
According to Ming, there is an advantage that it is possible to improve the heat shield performance of the horizontal unit partition walls. Further , according to the present invention , the number of partition wall units to be connected can be appropriately selected, and a partition wall having a required length can be easily formed. According to the present invention ,
When the outermost columnar member is fixed to the wall of the heating furnace, there is an advantage that the fixing strength and the earthquake resistance of the wall member can be greatly increased.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a state in which a partition wall unit using a ceramic fiber blanket as a ceramic fiber wall component is mounted inside a heating furnace.

FIG. 2 is a view showing a frame structure when a partition wall is formed using the partition unit shown in FIG. 1;

3 (A) to 3 (D) are views each showing an enlarged part shown by A to D in FIG.

FIG. 4 is a diagram showing another embodiment of the present invention.

FIGS. 5A to 5D are views used to explain a conventional partition wall.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Partition wall unit, 2a-2f, 102 ... Column-shaped member
21, 121: pillar-shaped main body, 3, 4: support tube, 5: bolt, 6: mounting bracket, 7, 107a to 107d: beam member,
8a: bolt, 8b: nut, 9: reinforcing rod, 10 ...
Reinforcement rod structure, 13, 113: castable refractory layer for furnace, 114: ceramic fiber blanket for coating, 115: stud pin, 16: ceramic fiber blanket for wall configuration, 116: ceramic fiber Board 117: ceramic fiber blanket for closing the gap, W: wall.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Publication No. Hei 21-21436 (JP, B2) (58) Field surveyed (Int. Cl. ⁷ , DB name) F27D 1/00 F27D 1/14 F27D 5 / 00 C09K 21/02 F23M 5/02

Claims (6)

(57) [Claims] 1. A partition unit of a heating furnace for forming a partition wall extending upward from a floor portion of the heating furnace and partitioning adjacent combustion chambers, wherein a predetermined interval is provided in a direction in which the heating furnace is partitioned. Two pillar-shaped members having fire resistance, the lower ends of which are fixed to the floor, and which are fixed between the two pillar-shaped members and are arranged at predetermined intervals in the vertical direction, respectively. A plurality of beam members having fire resistance, and a plurality of ceramic members arranged to form a unit partition wall between the two columnar members and fixed to the beam members.
It consists of a fiber-made wall portion constituting member, the columnar member and the beam member Ceramic coatings file
A plurality of ceramic fiber wall components covered by an Iva blanket.
From ceramic fiber blankets for wall construction
In the region sandwiched between two adjacent beam members,
Fixed to at least one of the columnar member and the beam member.
The plurality of wall-forming ceramic fiber brass.
A reinforcing rod structure for reinforcing the skeleton, wherein the plurality of wall-forming ceramic fiber blankets are arranged.
Are arranged so as to sandwich the reinforcing rod structure therebetween.
A partition unit for a heating furnace. 2. A plurality of ceramic members for forming a plurality of wall portions.
Iva blanket is used for the ceramic
Connected to the blanket using a heat-resistant stat pin
And are disposed opposite to each other on both sides of the reinforcing rod structure.
Two ceramic fiber braces for wall construction
Rackets are interconnected using common stud pins
The partition unit of the heating furnace according to claim 1, wherein the partition wall unit is provided. Wherein the columnar member, the beam member and the rod member constituting the reinforcing rod structure according to claim coupled to one another in a fixed structure to allow for thermal expansion and thermal contraction of the respective members 2 4. The partition unit of the heating furnace according to 1. 4. The heating furnace extends upward from the floor of the heating furnace.
Used to construct a partition wall that separates adjacent combustion chambers
A partition unit for a heating furnace, which is arranged at predetermined intervals in a direction in which the heating furnace is partitioned, and
Two fire-resistant columns whose lower ends are fixed to the floor
And Jo member, and upper and lower side is fixed between the two columnar members
With fire resistance arranged at predetermined intervals in the direction
To form a unit partition wall between the two beam members and the two columnar members.
A plurality of ceramics arranged and fixed to the beam member
And a ceramic fiber wall component.
A plurality of beam members, and the beam members are provided on side surfaces facing each other.
Mating groove into which the end of the lamic fiber board is fitted
Are formed, and the exposed portions of the columnar member and the beam member are covered with a ceramic coating.
And two laterally adjacent ceramic fiber blankets covered by a blank fiber blanket.
Ceramic fiber bra for gap closure
Two opposing ceramic fibers for closing the gap , which are closed by
Two pieces of the ceramic for closing the gap between the blankets
Reinforcing rod for reinforcing fiber blanket
A partition unit for a heating furnace. 5. A partition wall of a heating furnace configured by connecting the partition wall units according to claim 1 or 4 . 6. The partition wall of a heating furnace according to claim 5 , wherein the outermost columnar member is fixed to a wall portion of the heating furnace.