JPS60138386A - Method of baking tile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a method for firing roof tiles.

Conventionally, tiles are fired by continuously passing a large number of carts stacked with tiles through a tunnel kiln.

For example, 1 in FIG. 1 is a truck to which wheels 1a, . . . are attached, and this truck 1''2 has many support pins 2,
... are placed at a predetermined interval and two pedestals 4.4 without support pins on both sides are placed in three rows. , . . . , a large number of tile blanks 5 , . . . which have been molded, dried and glazed are stacked upright.

Furthermore, tool bricks 6,...on top of them are pedestals 3 and pedestals 4゜4.
are placed in three rows, and the second tier of tile blanks 5, . . . are stacked upright. In this way, a large number of carts l,... on which a large number of tile blanks 5,... are stacked are placed on the rails 7.
The tile blanks 5, . . . are fired by passing through the tunnel kiln successively through a preheating zone, a firing zone, and a cooling zone.

Figure 1 shows an example of a two-tier stacking system where the burners in the firing zone are attached to the side wall of the tunnel kiln. Sometimes this is done in one layer.

As mentioned above, the vertical stacking method is used for firing tiles.
Although it is possible to increase the number of loads, there is a drawback that defects are likely to occur due to overturning or deformation during firing. In addition, it costs a lot of money to equip tools such as shelves, bottles, and combs for stacking tiles, and it takes a lot of effort to stack and unload the tiles. This further increases costs.

On the other hand, high-quality raw material clay resources for tiles are being depleted in various production areas. As a result, the quality of the raw materials tends to deteriorate, and firing using the vertical stacking method increases the occurrence of deformation and other defects, making it difficult to perform firing using the conventional stacking method.

Furthermore, it is desired to reduce the weight of tiles themselves from the viewpoint of energy saving and resource saving to counter the depletion of raw materials and to save structural materials for buildings. This leads to a reduction in size, making it difficult to fire using the conventional stacking method.

The present invention has been made in view of the above circumstances, and aims to provide a method for firing tiles that can obtain roof tiles of good quality even under conditions such as deterioration in the quality of raw materials and reduction in the weight of roof tiles. .

In other words, the method for firing roof tiles of the present invention involves placing a plurality of spacers on a refractory base plate, placing the roof tiles on the spacers, and passing a large number of plywood panels sequentially and continuously through a tunnel-shaped furnace. It is characterized by being fired.

According to this method, since the firing is carried out by the method of actualization, it is possible to reduce the occurrence of defects such as deterioration of the quality of raw materials and deformation during firing even when the thickness of tiles is reduced to reduce the weight of the tiles. , the quality of roof tiles can be improved.

Hereinafter, embodiments of the present invention will be described with reference to FIG.

11 in the figure t53 is plywood, and on this plywood 11, three refractory spacers 12, . . . are placed.
A tile base 13 is placed on these spacers 12, . . . . The shape of the spacers 12, . . . has a curved surface that matches the curved surface of the tile to be fired.
... and the tile base 13 is made as small as possible to prevent single-sided heating due to heating.

In this way, a large number of base plates 11 have been formed with tile base 13,...
・ is placed on rollers 14.14 made of refractory or heat-resistant steel laid in the furnace, and is moved sequentially through the pre-heating zone, firing zone, and cooling zone in the tunnel-shaped furnace body, thereby forming the tile base material. 13,... are fired.

However, according to the above-mentioned method, since the roof tiles are fired according to actual conditions, deformation during firing can be prevented, and the quality of the roof tiles can be improved. If a tile base is used, it is also possible to fire the tile.

In addition, the cost required for equipping tools such as the spacers 12, etc. can be reduced, and the labor required for loading and unloading the tile blanks 13 onto the base plate 11 can be reduced, and the mechanization is extremely simple. It can be done with a device. In addition, heat transfer to the tiles is improved, and the firing time can be shortened compared to the conventional stacking method. Furthermore, the tunnel furnace body can be made smaller than those used in conventional methods.

In addition, in the above example, only one row of tile base is used, but
By using multiple rows, it is possible to compensate for the decrease in production compared to the conventional stacking method. In addition, in the above example, one tile base is applied to one plywood, but by increasing the size of the plywood or using tools to create multiple tiers, multiple tiles can be applied to one plywood. You may also record the basics.

Furthermore, in the above embodiment, the plywood is moved by placing it on rollers, but instead of the rollers, a refractory or heat-resistant steel skid rail may be used, and the plywood may be placed on top of it and moved by sliding it. good.

Furthermore, the shape of the spacer that supports the tile base on the plywood can be arbitrarily selected depending on the shape of the tile base. It is possible to fire irregularly shaped tiles such as Shiga tiles, flat tiles, and curved Western tiles.

As detailed above, according to the present invention, it is possible to provide a method for firing tiles that can produce tiles of good quality even under conditions such as deterioration in the quality of raw materials or reduction in the weight of tiles.

[Brief explanation of drawings]

FIGS. 1 and 2 are perspective views showing a conventional method for firing tiles, and FIG. 3 is a perspective view showing a method for firing tiles in an embodiment of the present invention. 11... Base plate, 12... Spacer, 13... Tile base. 14...Roller. Applicant's agent Patent attorney Takehiko Suzu Figure 1 2/

Claims (1)

[Claims] A tile characterized in that a plurality of spacers are placed on a refractory base plate, the tiles are stacked flat on the spacers, and a large number of plywood sheets are sequentially passed through a tunnel-shaped furnace to be fired. firing method.