JPH0519899U - Ceramic fiber block for firing furnace - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a ceramic fiber block for a firing furnace, which improves the workability of handling the ceramic fiber by preventing the generation of dust. [Structure] The ceramic fiber block 1 has a plastic cover 3 on the surface of a ceramic fiber block body 2.
Is formed. The ceramic fiber block body 2 is a blanket type hexahedral block. The plastic cover 3 is formed on the top surface 2a and the side surface 2b of the ceramic fiber block body 2. When the ceramic fiber block 1 is assembled in a firing furnace, the plastic cover 3 burns and disappears during firing.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a ceramic fiber block used as a wall body such as a firing furnace wall.

[0002]

[Prior Art]

 Conventionally, it is known that the furnace wall forming the firing furnace is composed of a lightweight ceramic fiber block for the purpose of improving fuel consumption. The ceramic fiber block is, for example, a rectangular parallelepiped block as a unit and stacked in a furnace wall shape. Such ceramic fiber blocks include blanket type, Z block type, uniblock type (multilayer type), etc., depending on the unit shape of the ceramic fiber. When assembling the ceramic fiber block in the firing furnace, the operator transports the required number of units to the firing furnace and fixes it in a predetermined position on the furnace wall.

[0003]

[Problems to be solved by the device]

 However, in the conventional ceramic fiber block, when handling, assembling, etc., the ceramic fine particles and ceramic dust that compose the ceramic fiber block are easily scattered to the outside, and these ceramic fine particles and ceramic dust are easily scattered by the operator. If it gets inside the body, it is likely to adversely affect the health of the worker. For this reason, the worker may need to be equipped with a dust protection mask or the like, and there is a problem in that the workability when handling the ceramic fiber block tends to decrease.

The present invention has been made in order to solve such a problem, and it is intended to improve the workability of handling a ceramic fiber by preventing the scattering of ceramic fine particles and ceramic dust. It is an object to provide a ceramic fiber block for a furnace.

[0005]

Therefore, a ceramic fiber block for a firing furnace according to the present invention is a ceramic fiber block forming a wall of a firing furnace, the ceramic fiber block body having a polyhedron, and the ceramic fiber block. It is characterized by comprising a flammable surface layer covering the surface of the fiber block body.

The ceramic fiber block body composed of the polyhedron is preferably composed of a hexahedron such as a cube or a rectangular parallelepiped in order to improve transportability, handleability, and assemblability. The flammable surface layer is preferably formed of a material such as plastic, paper or paraffin that burns, vaporizes or decomposes at a high temperature. The flammable surface layer may be formed, for example, by wrapping the ceramic fiber block body with a sheet made of the above-mentioned material, or by spraying the above-mentioned material onto the surface of the ceramic fiber block body to solidify it. it can. Regarding the surface on which the flammable surface layer is formed, for example, in the case of a hexahedral ceramic fiber block body, it is desirable to form the surface layer on at least five surfaces. This is because when the surface layers are formed on the five surfaces, a dustproof effect is exhibited and the surface layers can be easily formed on the ceramic fiber block on the jig. If the surface layers are formed on the six sides, the dustproof effect will be even greater.

[0007]

[Action]

 Since the combustible surface layer is formed on the ceramic fiber block body in the ceramic fiber block for a firing furnace of the present invention, dust is unlikely to scatter from the ceramic fiber block body and is easy for the operator to handle. Also, when assembled on the furnace wall, the flammable surface layer burns and disappears during firing, so it can be used without any adverse effect on the article to be fired such as ceramics.

[0008]

【Example】

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a ceramic fiber block according to a first embodiment of the present invention. In the ceramic fiber block 1, a plastic cover 3 is formed on the surface of the ceramic fiber block body 2. The ceramic fiber block body 2 is a blanket type hexahedral block. The bottom sides L ₁ and L ₂ shown in FIG. 1 are 300 to 600 mm, and the height L ₃ is about 75 to 400 mm. The plastic cover 3 is formed on the top surface 2a and the side surface 2b of the ceramic fiber block body 2 shown in FIG. It is not formed on the bottom surface 2c. The wall thickness of the plastic cover 3 is 0.01 mm to several mm.

When the plastic cover 3 is formed on the surface of the ceramic fiber block body 2, it can be mechanically performed by, for example, a block packaging device. In this case, first, the ceramic fiber block body 2 is placed at a predetermined position on the jig, and the plastic cover 3 having a predetermined area and wall thickness is spread and arranged above the top surface 2a. Next, the plastic cover 3 is lowered and adhered to the top surface 2a and the side surface 2b in order. Conditions such as bonding temperature are set according to the characteristics of the plastic.

FIG. 2 shows a firing furnace 5 in which the ceramic fiber block 1 is assembled. In the firing furnace 5, the article 10 to be fired is carried by a carriage 9 into a furnace body 8 constituted by a side wall 6 and a ceiling wall 7. A burner 11 is provided at a predetermined position on the side wall 6. An exhaust port 13 for discharging combustion gas is formed in the ceiling wall 7. The block fiber unit 1 is assembled to the side wall 6 and the ceiling wall 7. An iron plate 14 is provided outside the furnace body of the ceramic fiber block 1, and the ceramic fiber block 1 is attached to the iron plate 14 with bolts 15.

When the worker attaches the block fiber unit 1 to the firing furnace, the worker attaches the ceramic fiber blocks 1 to the iron plate 14 in sequence by the bolts 15 and arranges them at predetermined positions on the side wall 6 and the ceiling wall 7. At this time, since the plastic cover 3 is formed on the surface of the ceramic fiber block body 2, the worker can carry out the mounting work without being bothered by dust from the ceramic fiber block body 2.

When the temperature of the side wall 6 and the ceiling wall 7 rises during firing, the plastic cover 3 burns and disappears, and the ceramic fiber block body 2 remains on the side wall 6 and the ceiling wall 7. Therefore, the structures of the side wall 6 and the ceiling wall 7 are substantially the same as those of the assembly of the ceramic fiber block without the plastic cover 3, so that the ceramic fiber block has excellent heat insulation, fire resistance and heat resistance. It is possible to reliably maintain the sex.

FIG. 3 shows a ceramic fiber block according to a second embodiment of the present invention. In the ceramic fiber block 21, a plastic cover 23 is formed on the surface of a Z block type ceramic fiber block body 22. The ceramic fiber block body 22 is a strip-shaped ceramic fiber bent several times at equal intervals and compressed in the vertical direction in FIG. The plastic cover 23 is formed on the top surface 22a and the side surface 22b, but not on the bottom surface 22c.

According to the ceramic fiber block 21, the plastic cover 23 prevents the generation of dust from the ceramic fiber block body 22 and enhances the mechanical strength of the furnace wall when assembled in the firing furnace. . FIG. 4 shows a ceramic fiber block according to a third embodiment of the present invention. In the ceramic fiber block 31, a plastic layer 33 is formed on the surface of a uniblock type ceramic fiber block body 32. The ceramic fiber block body 32 is formed by stacking plate-shaped blocks 32a, 32b, 32c and 32d. The blocks 32a, 32b, 32c and 32d are fixed by an adhesive. The plastic layer 33 is formed by spraying the top surface 32a, the side surface 32b, and the bottom surface 32c of the ceramic fiber block body 32 with a plastic solidification spray.

According to the ceramic fiber block 31, since the ceramic fiber block body 32 has a laminated structure, the mechanical strength of the furnace wall can be improved and the ceramic fiber block body can be improved when assembled in a firing furnace. Since the plastic layer 33 is formed on the entire surface of 32, the generation of dust can be reliably prevented.

In the first, second and third embodiments, the surface layer is made of plastic, but instead of plastic, a flammable material such as paper or paraffin can be used. .

[0017]

[Effect of the device]

 As described above, according to the ceramic fiber block for a firing furnace of the present invention, since the surface layer is formed on the ceramic fiber block body, the generation of dust from the ceramic fiber block body is prevented and the ceramic fiber block is not transported. The handling work during assembly can be greatly facilitated. Also, when the ceramic fiber block is installed in a firing furnace, etc., the surface layer burns and disappears when the flammable surface layer is heated to a high temperature. There is an effect that the fire resistance can be sufficiently exhibited.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a ceramic fiber block according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a firing furnace constituted by the ceramic fiber block shown in FIG.

FIG. 3 is a partially cutaway perspective view showing a ceramic fiber block according to a second embodiment of the present invention.

FIG. 4 is a partially cutaway perspective view showing a ceramic fiber block according to a third embodiment of the present invention.

[Explanation of symbols]

1 Ceramic fiber block (ceramic fiber block for firing furnace) 2 Ceramic fiber block body 3 Plastic cover (surface layer)

Claims (1)

[Scope of utility model registration request] 1. A ceramic fiber block forming a wall of a firing furnace, the ceramic fiber block comprising a polyhedral ceramic fiber block and a flammable surface layer covering the surface of the ceramic fiber block. A ceramic fiber block for a firing furnace.