JP2525937Y2 - Kiln tools - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kiln tool used for firing tiles, ceramics, refractories and the like.

[0002]

2. Description of the Related Art Refractory plates are used for firing products using glazes such as mosaic tiles. In order to bake such a refractory plate, as shown in FIG. 4, a method is adopted in which a shelf plate 12 is passed over a trolley 11 in two or three steps, and a refractory plate 14 is placed vertically thereon. Improves the efficiency of kiln filling. However, in the case of such a vertical installation, to prevent the refractory plate 14 from falling down, bricks are stacked on the front and rear sides of the cart 11,
Alternatively, it is necessary to build a strong wall 15 that can withstand the weight of the refractory plate 14 on which the support is placed.

[0003] As a result, a shelf board 12 and a wall 15
And the weight of the kiln tools, etc., and the refractory plate to be fired
The ratio to the weight of 14 is about 3: 2, which is a kiln-filled configuration with low thermal efficiency during firing. Further, such a shelf plate 12 needs to be replaced because it is gradually deformed due to the weight of the refractory plate 14, but since it is integrated with the strong wall 15, the wall 15 is broken and then replaced. There is an irrational point that must be done.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and allows a material to be fired such as a refractory plate to be fired with high kiln filling efficiency and high heat efficiency.
Further, the present invention has been completed in order to provide a kiln tool capable of easily performing a replacement operation when deformed.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to forming a hole near each end of a refractory shelf, and connecting a refractory plate-shaped support to the lower end thereof. Are inserted into these holes and stand near both ends of the shelf, and the outside of the plate-like column is supported by a refractory wedge inserted into these holes. is there.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. 1 to 3, 1 is approximately 700 m in length
m, about 350mm wide and about 50mm thick. The shelf 1 of the embodiment is made of silicon carbide and has substantially rectangular holes 2 and 2 near both ends thereof. In the embodiment, between these holes 2 and the end face of the shelf 1,
A slit 3 having a width of about 3 mm is formed. The slit 3 is also formed on the opposite side (center side) of the hole 2, and in this embodiment, the length of one side of the slit 3 is about 100 mm.

[0007] Refractory pillars 4 are provided near both ends of the shelf 1. In this embodiment, the support 4 is made of alumina having a U-shaped cross section, and has a downward projection 5 at its lower end as shown in FIG. 2, and outward legs 6 formed on both sides. . Then, the projections 5 are inserted into the holes 2 of the shelf 1.
, The support columns 4 are set up on both ends of the shelf 1.

Reference numeral 7 denotes an alumina wedge. One surface of the wedge 7 is a flat surface, and the hole 2 on the outer side of the column 4 is
To support the plate-shaped column 4. Driving a wedge into a hole in a refractory shelf in this way seems to be unprecedented.

[0009]

The kiln tool thus constructed according to the present invention is used for vertically placing an object to be fired between columns 4, 4 erected near both ends of a shelf 1 and firing. The weight of a large number of objects to be fired is applied to the plate-shaped support 4.
Is inserted into the hole 2 of the shelf 1 and its outside is supported by the wedge 7, so that the weight of the object to be fired can be stably supported. When the whole is expanded by the heat during firing, the hole 2 also becomes large, but the wedge 7 falls by its own weight and fits deeper, so that the plate-shaped column 4 does not tilt.

The bending moment and thermal stress of the column 4 due to the weight of the material to be fired act on the inner surface of the hole 2 of the shelf 1 and the like. In the embodiment, the hole 2 is formed with a slit 3. Since the stress can be relieved, the shelf board 1 does not crack even if firing is repeated many times.

As described above, the kiln tool of the present invention enables the vertically sintering of the object to be fired by the combination of the relatively light shelf plate 1 and the columns 4, and the conventional kiln tool as shown in FIG. As compared with the structure, the overall weight can be significantly reduced, and the calorific value taken out of the kiln tool can be reduced, so that the thermal efficiency of firing can be improved. Further, since the kiln tool of the present invention does not need to support the weight of the object to be fired by the strong wall 15 unlike the related art, it is easy to replace the shelf plate 1 when it is deformed. In this case, there is also an advantage that the shelves 1 and the columns 4 can be easily separated by removing the wedges 7.

[0012]

[Effects of the Invention] As described in detail above, the kiln tool of the present invention is a tightly assembled and light-weighted structure, and supports an object to be fired in an arbitrary firing space and fills a high kiln. It can be fired efficiently and with high thermal efficiency, can easily replace parts when deformed or deteriorated, and can easily automate mechanical conveyance. It goes without saying that it can be used not only for refractory plates but also for firing other products in the ceramic industry. Therefore, the present invention has a very large practical value as a kiln tool which has solved the conventional problems.

[Brief description of the drawings]

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

FIG. 2 is an enlarged perspective view of a lower end portion of a column.

FIG. 3 is a partial sectional view showing an embodiment of the present invention.

FIG. 4 is a side view showing a conventional kiln tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shelf board 2 hole 3 Slit 4 Plate-shaped support 7 Wedge

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-119389 (JP, A) JP-A-3-93397 (JP, U) JP-A-59-103200 (JP, U) JP-A-51- 142054 (JP, U) Actually open 52-117553 (JP, U)

Claims (2)

(57) [Scope of request for utility model registration] 1. A hole is made near each end of a shelf made of a refractory material, and a column made of a refractory material is inserted at the lower ends thereof into these holes to stand near both ends of the shelf plate. A kiln tool, wherein the outside of the pillar is supported by a refractory wedge whose tip is inserted into these holes. 2. The kiln tool according to claim 1, wherein a slit is formed between the hole and an end face of the shelf.