JPH0616901Y2 - Smoked capsules for baking - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial field of application The present invention is a smoked object used to form a carbon coating on the surface of an object to be fired, such as fired roof tiles or tiles, carried out from a firing furnace. Regarding the encapsulated capsule.

Problems to be Solved by Conventional Technology and Invention When firing an object to be fired, such as a roof tile, in a tunnel furnace and subsequently forming a carbon coating on the surface to give a smoked color,
A large number of articles to be fired are stacked in multiple rows in one or more stages on a trolley and fired through a tunnel furnace, and the trolley is transferred to a predetermined position with the fired high-temperature fired matter still on the top surface. In addition, the inside of the capsule body is covered with a box-shaped smoked capsule with a layer of heat insulating material such as ceramic wool formed on the inside to block the ingress of outside air, and the nozzle is placed through the ceiling. Injecting a smoldering agent containing a large amount of carbon such as propane gas, and subsequently transferring the trolley to the capsule removal position, carbon generated by thermal decomposition of the smoldering agent is attached to the surface of the object to be burned, Further, the smoked capsule is removed at the above-mentioned removal position when the temperature of the object to be fired falls to a temperature at which it can be handled. Also,
As the smoked capsule, there is also known a smoked capsule in which a wheel is provided and a trolley on which a baked object to be baked is placed is inserted from a front door portion to perform a smoke processing.

By the way, in the case of performing a smoke treatment of such a material to be fired,
It is known that after the completion of smoking, cooling the baked product as quickly as possible improves the gloss and color development of the baked product, and if the cooling time is shortened, the smoked capsule can be rotated well. Not only can the number of smoked capsules be reduced, but the cooling transfer path laid in the factory can be shortened to save space and achieve an economical effect. In order to cool the material to be baked quickly after smoked, the layer of heat insulating material formed on the inner surface of the smoked capsule should be kept to a minimum thickness that keeps the inside of the capsule at a suitable temperature for smoked. It is only necessary to keep it in advance, but among the objects to be fired loaded on the trolley, the upper object to be fired, or even in the case of one step, the objects to be fired arranged in the outermost row, the outer upper end By radiating heat from both the top surface side and the side surface side, the corner is cooled more rapidly than other parts of the object to be baked and objects to be baked other than the objects to be baked in the outermost row. In the portion of, the free quartz contained in the material to be fired may suddenly transfer, which may cause cracking called cold cracking. If the thickness is made evenly thicker, the overall cooling time becomes slower, and Bug that Sawa and color can not be obtained has been made.

Means for Solving the Problems As means for solving the above-mentioned problems, the smoked capsule of the burned material of the present invention has a capsule body corresponding to the upper end corners of the baked material group on the carriage. The thickness of the heat insulating material layer at the abutting portion of the ceiling and the side wall is made thicker than other portions.

The operation and effect of the present invention With the above-mentioned configuration, the present invention has the above-described configuration, and the ceiling and side walls of the capsule body, which are the portions corresponding to the corners of the outermost fired object of the fired object that are most easily cooled. At the abutting portion, the thickness of the heat insulating material layer is made thicker than the other portions, so that the atmosphere around the corners of the object to be fired is hard to cool, and the heat insulating material layer is fired. Since the heat dissipation space becomes narrower as it approaches the corner of the object, the cooling rate at that corner can be suppressed to the same level as other parts or the inside object to be baked, and the entire part except the part corresponding to the corner can be suppressed. By keeping the thickness of the heat insulating layer to the minimum thickness that can keep the inside of the capsule at an appropriate temperature for smoking during smoking, the corners of the outermost object to be burned during cooling after smoking. The speed of all baked products is as high as possible while preventing cooling cracks in the parts It is possible to produce a smoked and baked product with good gloss and color without producing defective products, and because the cooling time is shortened, the capsules can be used with good rotation and the number of preparations is high. There is an effect that the space for cooling can be narrowed while the amount is small.

Embodiment An embodiment of the present invention will be described below with reference to FIG.

In the figure, 1 is a trolley which travels on a rail 3 by means of wheels 2, and a tile base a which is a material to be fired is placed on a mounting table 5 in a standing posture, and a plurality of them are vertically arranged. They are arranged in three rows and two rows above and below, and they are placed in a stacking shape that is substantially cubic as a whole. They are fired through a preheat zone and a firing zone of a tunnel furnace (not shown), then carried out of the furnace and smoked as desired. When transferred to the position, the smoked capsule 6 in which a heat insulating material 8 made of ceramic wool, which will be described in detail later, is attached to the inner surface of a box-shaped steel plate capsule body 7 having an open lower surface, is the roof tile group A.
It is put on from the upper surface so as to cover the circumference of the vehicle, and the fitting portion 9 at the lower end is thrust into the sand seal 10 provided on the peripheral edge of the trolley 1 so that the outside air is blocked. Then, when a smoldering agent is injected into the inside from a nozzle (not shown) arranged through the ceiling of the smoked capsule 6 and the trolley 1 is transferred to the capsule removal position, the carbon thermally decomposed during The smoked capsule 6 is attached to the base material a and further lowered to a temperature at which the roof tile base material a inside can be handled, and the smoked capsule 6 is removed at the above-mentioned removal position.

In the smoked capsule 6 of the present embodiment, the thickness of the heat insulating material 8 adhered inside the capsule body 7 corresponds to the outer upper corners of the roof tile a in the right and left rows of the upper row and the ceiling 7a and the left and right sides. The portion where both side walls 7b abut each other is formed thicker than the other portions.

That is, when the thickness of the heat insulating material 8 is uniform, the roof tile bases a in the rows on the left and right sides of the upper stage have the upper surface side and the side surface facing the outside air at the outer upper end corners, and Heat is dissipated from both the side surfaces and cooled faster than the other parts of the tile base a, or the upper center and the lower tile a.
Although there is a possibility that cooling cracks may occur, since the thickness of the heat insulating material 8 at the portion corresponding to the upper end corner portion of the tile base a is thick, it becomes difficult to cool the atmosphere around the corner portion. Since the heat insulating material 8 approaches the corner and the heat dissipation space is narrowed, the cooling rate at the corner can be suppressed to the same level as that of the other part of the tile base a or the other tile base a. Then, if the thickness of the heat insulating material 8 other than the portion corresponding to the corner portion of the roof tile base a is set to the minimum thickness that can keep the inside of the capsule 6 at a suitable temperature for smoking during smoking, cooling after smoking is performed. At this time, it is possible to cool all the tile base materials a at a speed as fast as possible while preventing the occurrence of cracks at the corners of the tile base materials a in the rows on the left and right of the upper stage, and to obtain gloss and It is possible to manufacture smoked roof tiles with good coloring, and the cooling rate is And Kunar, made correspondingly shorter flow path to the capsule removal position, can contribute to space saving, also possible to use well-rotating capsule 6, it requires less number of capsules 6 to be prepared.

In the embodiment shown in FIG. 2, the tile base a is placed on the wide carriage 11.
Is applied to the ones arranged in a single row in six rows and placed in a flat stack as a whole. In the smoked capsule 16 of the present embodiment, the left and right ends of the ceiling 17a of the capsule body 17 are excluded. The thickness of the heat insulating material 18 in the open part is reduced to make the ceiling 1
7a and the left and right side walls 17b are opposite to each other.
The thickness of the heat insulating material 18 over b is relatively thick,
This prevents the upper end corners of the tile bases a on both the left and right ends from cooling faster than the other portions and the tile base a at the center, and all the tile bases a at a substantially uniform speed. To be cooled.

Further, in each of the above-mentioned embodiments, the smoked capsules 6 and 16 of the type of covering from the upper surface of the trolleys 1 and 11 are illustrated, but the present invention is equipped with wheels and opens and closes the front door to open the object to be burned. It can also be applied to smoked capsules that are loaded and unloaded together with the loaded cart.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a sectional view of another embodiment. 1, 11: dolly 6, 16: smoked capsule 7, 17:
Capsule body 7a, 17a: Ceiling 7b, 17b: Side wall 8, 18: Heat insulating material a: Roof tile base A: Roof tile base group

Claims (1)

[Scope of utility model registration request] 1. A group of objects to be fired, which are formed by forming a layer of a heat insulating material on the inner surface of a box-shaped capsule body and are lined up on a carriage and carried out from a firing furnace, from the outside. A smoked capsule which is housed in a shut-off state and is filled with a smoldering agent to adhere carbon generated by thermal decomposition of the smolding agent to the surface of the object to be fired, The object to be fired, characterized in that the thickness of the layer of the heat insulating material in the abutting portion of the ceiling and the side wall of the capsule body corresponding to the upper end corner of the object to be fired is made thicker than other portions. Smoked capsules