JPH0533920Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a repair material that can repair the furnace wall of a kiln in a hot state.

(Prior Art) In recent years, as a method for repairing damaged parts of the furnace wall of a molten metal container such as a converter in a hot state, a method has been developed that uses a repair device that is equipped with an in-furnace conveyance device and a repair material bonding device. It has been adopted.

In this method, the repair material, which has a block shape at room temperature, is transported to the damaged part of the furnace wall, and then pressed against the damaged part of the furnace wall, thereby adhering the repair material to the damaged part of the furnace wall and repairing it. It is something.

By the way, the above-mentioned repair material has a block shape at room temperature, and when it is transported into the furnace, the adhesive binder (thermo-softening resin) added to the repair material is softened by the heat retained in the furnace. , which flows and improves the deformability of the repair material to the unevenness of the damaged part of the furnace wall and the adhesion to the damaged part of the furnace wall.

(Problems to be solved by the invention) However, the phenomenon in which the adhesive binder in the repair material softens and flows due to the heat retained in the furnace causes adhesion to the conveying plate that constitutes the bonding device, and When adhering to the damaged part of the furnace wall by pressing, the adhesion to the conveying plate is further promoted, causing a loss in the adhesion of the repair material to the wall surface and the thickness of the repair, which was the original purpose.

In addition, adhesion of repair material to the conveyor plate has a significant impact on the work time during reuse, which means that it becomes necessary to completely remove the adhesive to the conveyor plate or replace the conveyor plate after each repair. This not only makes it impossible to carry out continuous repair work, but also lowers the temperature inside the repair furnace, which has an impact on the operation.

The present invention aims to provide a repair material that can solve the above-mentioned problems during repair.

(Means for Solving the Problems) The present invention provides a structure in which the surface of at least a portion of a repair base material having a block shape that comes into contact with a conveyance plate that holds the repair base material is connected to a metal foil that comes into contact with the repair base material. The gist is that the material is covered with a release material made of a synthetic resin sheet.

(Function) The repair material according to the present invention has a structure in which at least the surface of the block-shaped repair base material that comes into contact with the conveyance plate that holds it is covered with a release material made by laminating metal foil and a synthetic resin sheet. As a result, the repair material does not adhere to the conveyor plate even when adhesive is applied to the damaged part of the furnace wall by pressing.

(Example) Hereinafter, the present invention will be described based on an example shown in the accompanying drawings.

In the drawings, reference numeral 1 denotes a repair material according to the present invention, and the repair material 1 is composed of a repair base material 2 having a block shape and a mold release material 3 that covers, for example, the entire surface of the repair base material 2.

The mold release material 3 is, for example, a metal foil 4 such as aluminum foil.
Similarly, it has a structure in which a synthetic resin sheet 5 such as a vinyl sheet is pasted together, and the metal foil 4 of these sheets is covered so as to come into contact with the repair base material 2.

That is, the metal foil 4 is used to prevent the repair base material 2 from adhering to the conveyor plate 6, and in addition, since the metal foil 4 is used in a hot state after the repair work is performed, it has a high heat resistance. It is adopted with the meaning of .

However, if the repair base material 2 is covered only with the metal foil 4, the metal foil 4 is likely to be damaged during manufacturing or transportation of the repair material 1, which is inappropriate for use.

Therefore, in order to prevent damage to the repair material 1 according to the present invention, a metal foil 4 laminated with a synthetic resin sheet 5 is used as the release material 3. Note that the mold release material 3 used in the present invention also has elasticity due to the synthetic resin sheet 5.

Note that the thickness of the mold release material 3 is not limited in any way, but due to the problems such as damage mentioned above, the thickness is preferably 0.1
It must be larger than mm. Further, the repair base material 2 constituting the repair material 1 of the present invention is not limited in any way, but for example, Japanese Patent Application No. 1985-85073 previously proposed by the present applicant may be adopted.

Next, the work order when repairing a damaged part of a furnace wall using the repair material of the present invention will be explained based on FIG. 2.

First, the repair material 1 of the present invention is set on the conveying plate 6 (FIG. 2A). After that, the part of the release material 3 corresponding to the adhesive surface of the repair material 1 is cut off (FIG. 2B).

Next, the repair material 1 in the above state is conveyed to the damaged furnace wall portion 7, and is pressed against the damaged furnace wall portion 7 to adhere the repair material 1 to the damaged furnace wall portion 7 (FIG. 3C).

Repair by repeating this work.

In addition, in this example, the work order was explained when the entire surface of the repair base material 2 was covered with the mold release material 3, but when using the repair material 1 in which only the part that contacts the conveyance plate 6 is covered with the mold release material 3. Of the above-mentioned operations, the operation of cutting out the mold release material 3 (FIG. 2B) is omitted.

(Effects of the invention) As explained above, the repair material according to the invention is
At least the surface of the block-shaped repair base material that comes into contact with the conveyor plate that holds it is coated with a release material made of metal foil and a synthetic resin sheet, so there is no pressure on the damaged part of the furnace wall. Even during adhesion, the repair material does not adhere to the conveyor plate, improving the adhesion thickness of the repair material and making continuous repair work possible, which has a great effect on improving work efficiency.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway perspective view showing one embodiment of the repair material of the present invention, and Fig. 2A-H are drawings explaining the working state when using the repair material of the present invention. 1 is the repair material, 2 is the repair base material, 3 is the release material, 4 is the metal foil, 5 is a synthetic resin sheet, and 6 is a conveying plate.

Claims (1)

[Scope of utility model registration request] Covering at least the surface of the block-shaped repair base material in contact with the conveyor plate that holds it with a release material consisting of a metal foil that comes into contact with the repair base material and a synthetic resin sheet that covers the metal foil. A hot repair material for kiln walls characterized by: