JPH0572937U - Smoked roof production equipment - Google Patents

Abstract

(57) [Summary] [Purpose] In a smoked tile production device in which a trolley is covered with a smoky box to perform a smoldering and cooling process, in the smoldering process, heat dissipation from the smoldering box is effectively suppressed, In addition, in the cooling process, heat dissipation from the smoldering box is effectively promoted. [Structure] The trolley 26 on which the tile base 31 is placed is covered with a smoldering box 34 in order to seal the periphery of the fired tile 31 in a reducing atmosphere in the process of smoldering and cooling. The outer shell 36 of the smoked box 34 is provided with six air passages 38 arranged in the front-rear direction, and the cooling line 19 is provided.
Further, a blower device 35 including a blower 39 and a duct 40 is provided. In the cooling process, the cooling air in the opposite direction is alternately supplied to the air flow path 38 in the front-rear direction, so that the cooling is efficiently performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a smoked tile production apparatus for producing smoked roof tiles while sequentially moving a trolley on which a tile base material is placed, in sequence.

[0002]

[Prior Art]

 As is well known, smoked roof tiles are made by firing raw clay made of clay into a tile shape, followed by performing a smoldering process in which reduced carbon is attached to the baked tiles, and then the baked tiles are It is manufactured by cooling.

As equipment for continuously producing such smoked roof using a tunnel furnace and a truck, there is one shown in FIG. That is, 1 and 2 are traversers on the inlet side and the outlet side, and between them are a tunnel furnace 3, a box attachment / detachment section 4, a second cooling line 5, a smoked line 6 and a first cooling line 7. It is provided in three rows. Further, rails for guiding the carriage are provided on the floors of these lines extending in the left-right direction in the figure.

As a result, the trolley on which the tile foundation is placed is first sent from the entrance side traverser 1 into the tunnel furnace 3 as shown by the arrow in FIG. Burned. At the box attaching / detaching part 4, the smoldering box made of iron, which has a rectangular box shape with an open bottom surface, is covered in a sealed manner on the trolley after the firing process is completed.

The trolley covered with the smoking box is sent from the exit side traverser 2 to the smoking line 6. In the smoked line 6, a smoked gas is introduced into a smoked box in a sealed state (oxygen deficient state) by a smoked gas charging device (not shown), and the gas is thermally decomposed to generate carbon. The carbon adheres to the fired roof tile while penetrating it, and the fired roof tile is colored silver.

Then, after the smoked process, the truck is sequentially sent through the first and second cooling lines 7 and 5, and the fired roof tile is cooled to about 350 ° C. This cooling process is carried out by introducing an inert gas into the smoldering box and allowing it to cool naturally in order to maintain a reducing atmosphere. After that, the truck that has gone through the cooling process is sent to the box attaching / detaching portion 4 again, where the smoked box is removed and discharged by the exit side traverser 2.

[0007]

[Problems to be solved by the device]

 By the way, after the firing process, the fired roof tiles will be placed in a natural cooling state.However, in the next smoke process, the high temperature state obtained in the firing process is maintained as much as possible while suppressing the temperature drop. It is desirable to be done. This is because the temperature in this smoking process affects the coloration of the fired roof tile, and if the temperature decrease is large, the fired roof tile becomes black and it becomes impossible to obtain a clean silver-colored smoked roof tile. Therefore, conventionally, a heat insulating material such as ceramic fiber is lined on the inner surface of the smoked box to improve the heat insulating property of the smoked box.

However, in the cooling process after the smoking process, on the contrary, it is desirable that heat radiation from the smoking box be promoted as much as possible. As described above, in the smoked roof production apparatus using the smoked box, the smoked box has two contradictory functions of suppressing heat dissipation during the smoked process and promoting heat dissipation during the cooling process. In the past, how to overcome this contradiction has been a matter of concern.

Therefore, for example, a cooling pipe made of an iron pipe for flowing cooling air from the outside is arranged inside the smoking box, and air is supplied to the cooling pipe from the outside of the smoking box during the cooling process. It is considered that the cooling effect is enhanced by flowing the cooling water.

However, in such a configuration in which the cooling pipe is arranged inside the smoking box as described above, since the cooling pipe allows constant cooling without flowing air, heat dissipation is suppressed in the smoking process. There is a problem that the effect decreases. Also, during the smoldering process, black soot is generated and adheres to the cooling pipe due to the smoldering gas, and this soot drops and adheres to the fired roof tile, or the soot becomes the atmosphere in the smoldering box. There is a problem that influences the product and adversely affects the product. For this reason, the above-mentioned configuration in which a metal member such as a cooling pipe is provided inside the smoked box has not been adopted yet.

The present invention has been made in view of the above circumstances, and an object of the present invention is to cover a smoky box on a trolley so as to perform a smoldering and cooling process. It is an object of the present invention to provide a smoked tile production apparatus capable of effectively suppressing the heat radiation of the above and effectively promoting the heat radiation from the smoking box during the cooling process.

[0012]

[Means for Solving the Problems]

 In the smoked roof production apparatus of the present invention, the outer shell of the smoked box is provided with an air flow path that extends along the outer periphery of the smoked box and opens at the lower end to the outside of the smoked box. It is characterized in that the cooling line is provided with an air blower for supplying cooling air into the air flow path.

[0013]

[Action]

 According to the above means, since the air flow path is provided along the outer circumference of the smoking box, unlike the case where the cooling pipe is provided inside the smoking box, the generation of soot in the smoking process, etc. There is no adverse effect on the product.

Here, in the smoldering process, the air in the air passage is warmed and rises in the air passage, but the opening of the air passage exists at the lower end of the smoldering box. As a result, the warmed air remains in the air flow path without being discharged. Therefore, a so-called air insulation layer is formed around the outside of the smoked box, and the heat insulation effect is improved.

Further, in the cooling line, since the cooling air is supplied into the air flow path by the air blower, the heat radiation from the smoldering box is promoted, and the cooling efficiency is higher than that in the case of natural cooling. Remarkably improved.

As a result, the smoldering box can sufficiently fulfill the contradictory functions of suppressing heat dissipation in the process of smoking and promoting heat dissipation in the process of cooling.

[0017]

【Example】

 Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. First, the overall configuration of the smoked roof tile production apparatus according to the present embodiment will be briefly described with reference to FIG.

An inlet side traverser 11 and an outlet side traverser 12 are provided on the right side and the left side of the production apparatus, respectively, for conveying a carriage to be described later in a direction orthogonal to the line and extending in the front-rear direction. There is. The following line is provided between the inlet side traverser 11 and the outlet side traverser 12.

That is, between the inlet-side traverser 11 and the outlet-side traverser 12, the firing line 13, which is composed of a tunnel furnace, the box mounting portion 14, and the smoked line 15 are located on the back side from right to left. It is provided so as to be continuous in one row.

A second cooling line 16, a box removing section 17, and a heat recovery line 18 are provided on the front side so as to be continuous in a row, and further on the front side, a first cooling line 19 is provided. It is provided so as to extend in the left-right direction. An intermediate traverser 20 is provided between the outlet of the first cooling line 19 and the inlet of the second cooling line 16 so as to straddle them.

Further, on the front side of the first cooling line 19, a baked product line 21, a white background line 22, and a work line 23 are provided in three rows. Of these, the work line 23 is provided with a loading section 24 and a product collecting section 25 located on the left and right sides of the central portion. A rail 27 (see FIGS. 1 and 2) for guiding a carriage 26, which will be described later, is provided on the floor of each line extending in the left-right direction in the drawings.

Here, the carriage 26 used for producing smoked roof tiles will be described. As shown in FIG. 2, this trolley | bogie 26 is equipped with the four wheels 29 which roll on the said rail 27 in the lower part of the mounting stand part 28 made from a refractory which makes a rectangular shape. In addition, a receiving portion 30 for receiving a lower end portion of a smoked box, which will be described later, is provided below the mounting table portion 28 so as to surround four sides of the mounting table portion 28.

As shown in FIG. 2, the roof tile base 31 (which becomes the fired roof tile 31 after firing) obtained by forming the raw clay into a roof tile shape and drying the refractory material is placed on the mounting table 28 of the carriage 26. It is designed to be mounted via a support column 32 and a shelf plate 33 made of steel. The loading of the tile base material 31 onto the carriage 26 is performed by the loading section 24, and a large number of the carriages 26 on which the tile base material 31 is placed are sequentially fed while repeatedly moving and stopping on the respective lines described above. It is becoming like this.

In this case, as shown by the arrow in FIG. 3, the carriage 26 is sent to the left on the work line 23 in the figure, and then to the white background line 22 to the right, and the baking traverse line 11 is fed by the inlet side traverser 11. Sent to 13. Then, the firing process is performed in the firing line 13, the smoking process is performed in the smoldering line 15, and the cooling process is performed in the first and second cooling lines 19 and 16. Is a smoked roof.

The firing line 13 is composed of a well-known tunnel furnace as described above, and the inside thereof has a predetermined temperature distribution by, for example, a burner. The tile base material 31 is heated to about 1100 ° C. and fired (unfired) by passing through the firing line 13 (tunnel furnace) for a predetermined time to form the fired roof tile 31.

The smoldering process and the cooling process are performed by creating a reducing atmosphere around the fired roof tile 31. In order to form a closed space around the fired roof tile 31, the box mounting portion is provided. In FIG. 14, a smoky box 34 having a rectangular box shape with an open lower surface is mounted on the carriage 26 by a transfer mechanism (not shown).

The smoked line 15 is provided with a smoked gas injection device (not shown) for injecting a smoked gas such as butane or propane into a smoked box 34 covered by the carriage 26, and is hermetically sealed. In the state (oxygen-deficient state) of the smoldering box 34, the smoldering gas is charged, the gas is thermally decomposed to generate carbon, and the carbon adheres to the firing roof tile 31 in a state of permeating. The baked roof tile 31 is colored silver.

The trolley 26, which has completed the smoking process, is sent to the first cooling line 19 by the exit side traverser 12 and further to the second cooling line 16 by the intermediate traverser 20. The first and second cooling lines 19 and 16 are provided with an inert gas injection device (not shown) for injecting an inert gas such as nitrogen or carbon dioxide into the smoked box 34. There is.

As a result, even in the cooling process, the reducing atmosphere in the smoldering box 34 is maintained, and the carbon is fixed to the fired roof tile 31. As will be described later in detail, the first and second cooling lines 19 and 16 are provided with an air blower 35 that supplies cooling air to the smoked box 34.

After the firing roof tile 31 is cooled by the second cooling line 16 to approximately 350 ° C. where there is no risk of carbon reaction, the smoke removing box 34 is removed from the truck 26 at the box removing section 17. Removed. After that, the removed smoked box 34 is returned to the box mounting portion 14 by a traverser (not shown), while the trolley 26 is further cooled by the heat recovery line 18 and passes through the exit side traverser 12 to the baked product line. It is sent to the product collecting section 25 of the work line 23 through 21 and the collecting work of the baked product 31 is performed there.

As shown in FIG. 2, the smoldering box 34 is formed by lining a heat insulating material 37 made of, for example, a blanket-shaped ceramic fiber on the inner surface of an outer shell 36 made of iron, for example. Here, the outer shell 36 is formed in the shape of a rectangular box whose lower surface is opened as a whole. In this embodiment, the both side surfaces and the upper surface of the outer shell 36 include a plurality of inner and outer two iron plates 36a and 36b. The ribs 36c (see FIG. 1) have a so-called double structure in which they are arranged at predetermined intervals.

At this time, the ribs 36c are provided so as to divide both side surfaces and the upper surface of the smoked box 34 into, for example, six equal parts in the traveling direction, whereby the outer shell 36 is smoked. Along the outer periphery of the box 34, six thin duct-like air passages 38 are formed side by side in the front-rear direction, the side surfaces, the top surface, and the side surfaces extending continuously. Further, both ends of the air passage 30 are opened to the outside of the smoked box 34 at the lower end portions of both side surfaces of the smoked box 34, respectively.

As shown in FIG. 2, the receiving portion 30 of the carriage 26 has a U-shaped groove in which a packing made of cotton-like ceramic fiber is housed, and the receiving portion 30 has a smoked box. The seal piece portion formed at the lower end portion of the outer shell 34 (outer shell 36) is fitted from above so that the inside of the smoldering box 34 is hermetically sealed. Further, although not shown, one side surface of the smoldering box 34 is provided with a gas inlet and a required gas inlet for introducing the smoldering gas and the inert gas into the smoldering process and the cooling process, respectively. Piping is provided.

As described above, the first and second cooling lines 19 and 16 are provided with the air blower 35 for supplying the cooling air into the air flow path 38 of the smoke box 34. Has been. Hereinafter, the blower device 35 will be described in detail with reference to FIG. 1 showing the first cooling line 19.

That is, as described above, the rail 27 for guiding the carriage 26 is provided on the floor of the first cooling line 19 so as to extend in the left-right direction. The blower device 35 includes a blower 39 that generates cooling air and a duct 40 that is connected to the blower 39 and guides the cooling air. In this case, the blowing device 35 is provided on each side of the rail 27.

The duct 40 extends through the floor of the cooling line 19 in the same direction as the rail 27, and its position corresponds to a position almost directly below the opening of the air flow path 38 of the smoke-sending box 34. It has become. As shown in FIG. 2, the duct 40 is provided with a plurality of discharge ports 40a for blowing the cooling air upward, in this case, three discharge ports 40a.

Here, as described above, the trolley 26 that has completed the smoldering process is sequentially fed through the first cooling line 19 while repeatedly moving and stopping with the smoldering box 34 attached, At this time, in order to inject the inert gas, it is always stopped at a predetermined stop position. The one set (three) of the discharge ports 40a is located at one of the six air flow paths 38 of the smoked box 34 when the carriage 26 is stopped at this stop position. It is provided so as to be located below the air flow path 38.

Although not shown in detail, between the pair of ducts 40 located on both sides of the rail 27, the discharge ports 40a are formed at positions displaced by one pitch of the air flow path 38. As a result, the cooling air is alternately supplied to the six air passages 38 in the opposite directions. Although not shown and described, the second cooling line 16 is also provided with a similar blower 35.

Next, the operation of the above configuration will be described. As described above, the carriage 26 on which the tile base 31 is placed is sequentially transferred to the firing line 13 (in the tunnel furnace) while repeating movement and stop, and the tile base 31 is unglazed. The truck 26 that has completed the firing process is sequentially discharged from the tunnel furnace, covered with the smoked box 34 at the next box mounting portion 14, and a sealed space is formed around the fired tile 31. ..

The trolley 26 covered with the smoked box 34 is sent to the next smoked line 15 and the inside of the smoked box 34 is covered with the heat insulation tunnel 36 covering the upper part of the smoked box 34. The fumigation gas is injected into and the fumigation process of adhering carbon to the fired roof tile 31 is executed.

Thus, the fired roof tile 31 after the firing step is, so to speak, placed in a naturally cooled state, but the smoked step is to maintain the high temperature state obtained in the firing step as much as possible. However, it is desirable that the temperature decrease be suppressed. This is because the temperature in the smoked process affects the coloring of the fired roof tile 31, and if the temperature decrease is large, the fired roof tile 31 becomes black and a clean silver-colored smoked roof tile cannot be obtained.

In the present embodiment, the heat insulating material 37 lined on the inner surface of the smoked box 34 suppresses heat radiation from the smoked box 34. In addition, in the smoldering process, the air in the air flow path 38 is warmed and rises in the air flow path 38. However, the opening of the air flow path 38 is located at the lower end of the smoldering box 34. Since it exists, the warmed air is not discharged but remains in the air flow path 38. Therefore, a so-called air insulating layer is formed on the outer periphery of the smoked box 34, so that the heat insulating effect is further improved.

Then, in the next cooling process, cooling air is blown upward from the discharge port 40a of the duct 40 to the carriage 26 stopped at the stop position by the operation of the blower device 35. The cooling air blown out from each discharge port 40a is supplied to one of the air passages 38 formed in the outer shell 36 of the smoked box 38 from one opening, and the inside of the air passage 38 of the smoked box 34 is supplied. After flowing along the outer circumference, it will be discharged from the other opening.

As described above, by supplying the cooling air to the air flow path 38, the heat radiation from the smoldering box 34 is promoted, and the cooling is performed extremely efficiently as compared with the case of the natural cooling. .. Further, in this case, as shown by the arrow in FIG. 1, since the cooling air flows in the opposite direction to the six air flow paths 38 arranged in the front-rear direction, the entire smoldering box 34 should be cooled uniformly. Is possible.

As described above, according to this embodiment, the air passage 38 is provided in the outer shell 36 of the smoked box 34, and the blower 35 is provided in the first and second cooling lines 19 and 16. In the smoldering process, the heat radiation from the smoldering box 34 is sufficiently suppressed, and in the cooling process, the smoldering box 34 can be cooled very efficiently.

Therefore, it is sufficient to meet the contradictory demands of suppressing heat release from the smoldering box 34 in the smoldering process and promoting heat release from the smoldering box 34 in the cooling process, which has been a concern in the past. It became possible to efficiently produce high-quality smoked roof tiles. In addition, unlike the conventional method where a cooling pipe is provided inside the smoldering box, no soot is generated during the smoldering process.

FIG. 4 shows a second embodiment of the present invention. The difference from the first embodiment is the configuration of the smoked box 51. That is, in this embodiment, the outer shell 52 has a so-called triple structure, a wall partitioning the space is provided at the center of the upper surface, and the side surface of the smoked box 51 and approximately half of the upper surface are reciprocated. An air passage 53 extending in two layers is formed.

In the air flow path 53, the cooling air supplied from the discharge port 54 a of the duct 54 is sent to the upper inside of the air flow path 53, for example, as shown by the arrow in the figure, and the smoked box 51 is discharged. The air is returned to the outside of the air flow path 53 so as to be folded back at the central portion of the upper surface of the air, and discharged.

Even with such a configuration, it is possible to effectively suppress the heat radiation from the smoldering box 51 in the smoldering process, and to effectively promote the heat radiation from the smoldering box 51 in the cooling process. The same effect as that of the first embodiment can be obtained. Further, in the present embodiment, the flow of the cooling air becomes more uniform with respect to the entire smoldering box 51 as compared with the first embodiment in which the flow of the cooling air is alternately set in the opposite direction, and more uniform cooling is achieved. You will be able to do it.

The present invention is not limited to the above-mentioned embodiments, and various modifications such as the structure of the smoking box (air flow path) and the arrangement relationship of each line are conceivable. The present invention can be appropriately modified and implemented without departing from the above.

[0051]

[Effect of the device]

 As is apparent from the above description, according to the smoked tile production apparatus of the present invention, the smoked box has an outer shell extending along the outer periphery of the smoked box at the lower end portion of the smoked box. In addition to providing an air flow path that opens to the outside, an air blower that supplies cooling air to the air flow path is installed in the cooling line, so that the heat release from the smoky box is effectively suppressed during the smoky process. In addition, in the cooling process, it has an excellent practical effect that the heat radiation from the smoking box can be effectively promoted.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a cooling line according to a first embodiment of the present invention.

FIG. 2 is a vertical front view of a smoked box.

FIG. 3 is a plan view schematically showing the entire smoked roof production device.

FIG. 4 is a view corresponding to FIG. 2 showing a second embodiment of the present invention.

FIG. 5 is a view corresponding to FIG. 3 showing a conventional example.

[Explanation of symbols]

In the drawing, 13 is a firing line, 14 is a box attachment part, and 1
5 is a smoking line, 16 is a second cooling line, 19 is a first
Cooling line, 26 is a trolley, 27 is a rail, 28 is a mounting base, 29 is a wheel, 30 is a receiving part, 31 is a tile base (sintered roof tile), 34 and 51 are smoked boxes, and 35 is a blower.
Reference numerals 6 and 52 are outer shells, 36a and 36b are iron plates, 36c is a rib, 37 is a heat insulating material, 38 and 53 are air flow paths, 39 is a blower, 40 and 54 are ducts, and 40a and 54a are discharge ports.

Claims (1)

[Scope of utility model registration request] 1. A firing line for moving a bogie on which a tile base is placed in a tunnel-shaped firing furnace to fire the tile base, and a box with an open bottom surface for the truck discharged from the firing line. In a state in which the smoldering box is covered in a sealed state, a smoldering line that puts a smoldering gas into the smoldering box to attach carbon to the fired roof tiles, and a truck discharged from this smoldering line, In a smoked tile production apparatus comprising a cooling line for cooling the fired roof tile by moving it while introducing an inert gas into the smoked box, in an outer shell of the smoker box, an outer periphery of the smoker box. And an air flow path that extends along the lower end and opens to the outside of the smoldering box, and the cooling line is provided with an air blower that supplies cooling air into the air flow path. Smoked tile production equipment.