JPH03291491A - Lined construction of ceramic fiber block - Google Patents

Abstract

PURPOSE:To prevent a ceramic fiber block from dropping off a surface wall by retaining and holding the block on a retaining metal in agreement with the orientation of fiber thereof in the direction of mounting the retaining metal fastened on the furnace wall. CONSTITUTION:A retaining metal 11 is fastened on a shell 17 of a furnace wall 1 at an angle equal to an array of fiber of a ceramic fiber block 7. The metal 11 is provided to fasten one block 7 on the furnace wall 1 by four pieces of the metal 11. Then, the block 7 is inserted so askew to match the inclination of the metal 11 in a direction of the fiber of the block 7 as indicated by the arrow that a parallel surface of the block 7 abuts the shell 17 of the furnace wall 1. As a result, even if one block 7 is forced to slip, it can be retained on the furnace wall 1 securely as the metal 11 and an adjacent block is against the way the block slips. This also eliminates exposure of the metal 11 to the internal surface of the furnace thereby enabling the prevention of corrosion by a heat gas.

Description

DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION Field of Industrial Application The present invention relates to a ceramic fiber block lining structure for a furnace wall.

(Prior Art) Conventionally, structures such as board lining, stack lining, block lining, and veneering are known as ceramic fiber block lining structures for furnace walls. For example, in the board lining structure, as shown in FIG. 13, rock wool 2 is laminated on the side of the low-temperature furnace wall 1, and blanket-like materials such as ceramic fibers 3 are laminated on the inside of the high-temperature furnace. , these rock wool 2 through nuts 5 and washers 6.
Also, the ceramic fibers 3 are held and fixed to the furnace wall 1.

(Problem to be Solved by the Invention) However, with the above conventional structure, special care must be taken when installing the ceramic fiber block in a place where it is likely to peel off and fall due to gravity, such as a ceiling, and the locking hardware must be Since it was exposed on the inner surface of the furnace, there were problems such as corrosion caused by heat and gas.

In view of this, the present invention has been made for the purpose of providing a ceramic fiber block lining structure in which the ceramic fiber block does not fall from the furnace wall and the locking hardware does not corrode.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, the present invention has an inclined surface that is inclined at a predetermined angle with respect to a parallel surface parallel to the furnace wall, and a direction parallel to this inclined surface. It has a ceramic fiber block whose sides have a parallelogram shape with fibers arranged on the sides, and a locking hardware that is fixed to the furnace wall at an angle corresponding to the direction in which the fibers of this ceramic fiber block are arranged. The arrangement of the locking metal fittings is characterized in that the direction in which the fibers of the ceramic fiber block are arranged is aligned with the direction in which the ceramic fiber block is locked and held on the locking metal fittings.

(Function) Fixes the locking hardware at a predetermined angle to the furnace wall,
A parallelogram-shaped ceramic fiber block with fibers arranged at an angle corresponding to the above-mentioned inclination is fixed and held by aligning the direction of fiber arrangement with the direction in which the locking hardware is attached. When the ceramic fiber block tries to come out, the locking hardware becomes erratic, and the ceramic fiber block is prevented from falling from the furnace wall due to the direction in which the adjacent ceramic fiber block comes out.

(Example) Hereinafter, the present invention will be described with reference to examples shown in FIGS. 1 to 12.

1 and 2 are diagrams showing an example of a ceramic fiber block applied to the ceramic fiber block lining structure according to the present invention.
The long side A shown in the figure is about 3001, the short side B is about 150, the width C is about 300, and the acute angle θ between the long side A and the short side B is about 60°. It has a parallelogram shape, and the parallel plane 9, which is the long side A, is placed parallel to the furnace wall 1, and the direction in which the fibers are arranged when viewed from the side is parallel to the inclined plane 10, which is the short side B. There is.

The locking hardware 11 is made of round steel or the like with a diameter of about 5 m11, and its tip 12 has a pointed shape.

This locking hardware 11 is shown in FIGS. 5 and 6 in which the base 13 is directly attached to the furnace wall in the furnace.

A mounting member 14 made of flat steel or an angle is fixed at an angle equal to the acute angle θ (approximately 60° in this embodiment) formed by the direction of fiber arrangement of the ceramic fiber block 7 and the inclined surface 10.

Note that 15 indicates a hole for a drive pin.

Further, FIG. 4 shows another embodiment of the locking hardware 11, in which the locking hardware 11 is formed by providing a protrusion 16 on a round steel.

Next, an example of a specific construction procedure for the ceramic fiber block lining structure will be described with reference to FIGS. 7 to 12.

In Figures 7 and 8, the iron shell 17 of the furnace wall 1 is
The locking hardware 11 is fixed at an angle equal to the acute angle θ of the fiber arrangement of the ceramic fiber block 7. This locking hardware 11 holds one ceramic fiber block 7 in four
It is provided so as to be fixed to the furnace wall 1 with a book locking metal fitting 11. Then, by matching the inclination of this locking hardware 11 with the direction of the fibers of the ceramic fiber block 7, the parallel surface 9 of the ceramic fiber block 7 comes into contact with the iron skin 17 of the furnace wall 1 as shown by the arrow in FIG. Insert it diagonally as shown.

By arranging the ceramic fiber blocks 7 on the shell 17 of the furnace wall 1 without gaps in this manner, the furnace wall 1 can be lined with the ceramic fiber blocks 7.

FIG. 9 shows another embodiment of the lining structure, and shows a ceramic fiber block lining structure for an existing furnace wall.

That is, the mounting member 14 to which the locking hardware 11 is fixed
After fixing the ceramic fiber block to the existing furnace wall 1 using the drive pin 18, insert the ceramic fiber block from an oblique direction as shown by the arrow in FIG. fiber block 7
It is designed to be locked and held.

Figures 10 to 12 show still another embodiment of the lining structure, in which the pressure inside the furnace is high and the gas inside the furnace leaks from between the ceramic fiber blocks 7 and 7, causing the iron shell to leak. This inner lining structure is applied in cases where there is a risk that 17 may become red hot.

That is, one end of the L-shaped mounting member 14 is fixed to the iron skin 17, and the locking hardware 11 is fixed to the other end of the mounting member 14 diagonally in accordance with the direction of the fibers of the ceramic fiber block 7. After inserting and fixing the heat insulating castable castable 19 between the L-shaped mounting member 14 and the L-shaped mounting member 14, insert the ceramic fiber block 7 into the locking hardware 11 from an oblique direction as shown by the arrow in FIG. It is designed to be locked and held.

As in these embodiments, fibers whose side surfaces are parallelogram-shaped and are arranged parallel to the sloped surface 10 of the parallelogram are attached to the locking hardware 11 which is installed at an angle on the iron skin 17 or the like. Since the ceramic fiber block 7 with the same direction is inserted, the inclined surface 1 of the ceramic fiber block 7
The ceramic fiber block 7 will not move in the direction perpendicular to the steel shell 17 due to contact between the two, and therefore the ceramic fiber block 7 will not be pulled out from the locking hardware 11 and fall. .

In this embodiment, the locking hardware 11 was attached to the iron skin 17 at an angle of 60', and one ceramic fiber block 7 was fixed by four locking hardware 11, but the operating temperature, The angle and number may be arbitrarily selected depending on the purpose of use, etc., and are not limited to these.

〔Effect of the invention〕

As explained above, according to the present invention, the side surface has an inclined surface with respect to the parallel surface parallel to the furnace wall, and the side surface on which the fibers are arranged in a direction parallel to the inclined surface has a parallelogram shape. It has a ceramic fiber block and a locking hardware fixed to the furnace wall at an angle corresponding to the direction in which the fibers of this ceramic fiber block are arranged, and the locking hardware fixed to the furnace wall is attached in the direction. Since the fibers of the ceramic fiber block are aligned in the same direction and are held in place by the locking metal fittings, the ceramic fiber blocks are held in a parallelogram shape by the locking metal fittings provided diagonally with respect to the furnace wall. The structure is such that the ceramic fiber block is skewered, and when the ceramic fiber block tries to come out, the locking hardware will be tilted, and the adjacent ceramic fiber block will be tilted in the direction of coming out, so it may not be possible to remove the ceramic fiber block from the ceiling, etc. The ceramic fiber block can be securely locked in places where it is likely to fall due to gravity. Furthermore, since the ceramic fiber block can be locked without exposing the locking hardware to the inner surface of the furnace, there is no corrosion due to contact with heat, gas, etc. of the locking metal. Therefore, there is no need to use expensive materials. Furthermore, since the ceramic fiber block is skewered to the locking hardware, construction and maintenance are easy, and no special techniques are required for construction, increasing work efficiency.No special construction tools are required, reducing construction costs. It has effects such as being inexpensive. Furthermore, in the case of hardware with protrusions, the locking becomes even more solid, and when the ceramic fiber block is pressed, the fibers engage with the protrusions, making it possible to hold the ceramic fiber block in a compressed state. The boundary between the steel plate and the steel shell becomes crimped due to the restoring reaction force, which has the effect of preventing gas leaks, etc.

[Brief explanation of drawings]

Fig. 1 is a side view showing an embodiment of the ceramic fiber block applied to the ceramic fiber block lining structure according to the present invention, Fig. 2 is a PP celebration side view of Fig. 1, Figs. The figure is a perspective view of the locking hardware, Figures 5 and 6 are perspective views of the structure in which the locking hardware is attached to the mounting member, Figure 7 is a longitudinal sectional view of the structure in which the metal shell is lined directly, and Figure 8
The figure is a Q-Q observation view of Fig. 7, Fig. 9 is a vertical cross-sectional view of the structure in which the lining is placed on the surface of the existing refractory, and Fig. 10 is the front view of the structure in which the lining is placed on the surface of the existing refractory. 11 is a cross-sectional view taken along the line R-R in FIG. 10, and FIG. 12 is a cross-sectional view taken along S--
FIG. 13 is a perspective view of a conventional lining structure. DESCRIPTION OF SYMBOLS 1... Furnace wall, 7... Ceramic fiber block, 11... Locking hardware, 14... Mounting member, 17...
・Iron skin.

Claims (1)

[Claims] A ceramic fiber block having an inclined surface inclined at a predetermined angle with respect to a parallel surface parallel to a furnace wall, and having a parallelogram-shaped side surface with fibers arranged in a direction parallel to this inclined surface, and this ceramic fiber and a locking hardware fixed to the furnace wall at an angle corresponding to the direction in which the fibers of the block are arranged, and the direction in which the fibers of the ceramic fiber block are arranged is aligned with the installation direction of the locking hardware fixed to the furnace wall. A ceramic fiber block lining structure characterized in that the ceramic fiber block is locked and held by the locking hardware.