JPH0572938U - Smoking equipment for smoked roof production equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] In a smoker for smoked roof production equipment, in which a trolley is covered with a smoker box to carry out the smoker process, the heat dissipation from the smoker box is effectively suppressed and the gas is also removed. Prevents explosions due to leaks. [Structure] The trolley 26 on which the tile base material is placed via columns is covered with a smoldering box 34 for sealing the peripheral portion of the fired tile after the firing process. Smoked line 15
An insulating tunnel 36 is provided to cover the upper part of the smoked box 34. Further, a heat seal member 40 is provided on the inner surface of the lower portion of the heat insulating tunnel 36 so as to be in sliding contact with the seal plate 34b on the side surface of the smoked box 34. The lower part of the heat insulating tunnel 36 is opened to the side, and a fumigant gas injector 41 is provided in this open portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a smoldering device for a smoky tile production facility, which is capable of producing a smoky tile while sequentially moving a trolley on which a tile base material is placed.

[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.

Then, 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, the fuel gas is charged 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 the fired roof tile, and the fired roof tile is colored in silver.

After the smoking process, the carriage is sequentially sent through the first and second cooling lines 7 and 5 and cooled to about 350 ° C. This cooling process is performed while introducing an inert gas into the smoking box. Then, the truck that has undergone the cooling process is sent to the box attaching / detaching section 4 again, where the smoked box is removed and is 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 are put in a so-called natural cooling state, but in the next smoke process, the high temperature state obtained in the firing process is maintained as much as possible and the temperature drop is suppressed. It is desirable to be carried out while doing. This is because the temperature in the smoked process affects the coloring of the fired roof tile, and if the temperature drop 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 a ceramic fiber is lined on the inner surface of the smoked box to suppress heat radiation from the smoked box. On the other hand, in the next cooling process, on the contrary, it is necessary to promote the heat radiation from the smoldering box, so if the heat insulating property of this heat insulating material is made too large, the cooling efficiency will be extremely deteriorated. Therefore, the effect of suppressing heat radiation by the smoked box itself could not be increased so much.

Therefore, for example, it is conceivable to provide a heat insulating wall body in a tunnel shape also in the smoking line 6 and move the carriage inside the heat insulating wall body. However, since the fuel gas is supplied to the inside of the smoked box in the smoked line, if this gas leaks from the seal part between the smoked box and the trolley into the heat insulating wall in the atmosphere, There was a problem that the gas concentration became high and there was a risk of explosion. There was also the problem that parts made of iron, such as the wheels provided at the bottom of the bogie, were exposed to high temperatures.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a smoky box on a trolley so as to perform a smoky process, and to effectively dissipate heat from the smoky box. It is an object of the present invention to provide a fumigation device for a fumigation tile production facility that can suppress the occurrence of gas leaks and prevent explosions.

[0011]

[Means for Solving the Problems]

 The smoldering device for smoked tile production equipment of the present invention includes an insulating tunnel that extends in the traveling direction of the trolley and covers the upper part and both sides of the smoldering box and opens the side of the lower part of the trolley. A heat-sealing member made of a heat insulating material that extends in the traveling direction of the carriage and is in sliding contact with a side surface of the smoking box at a height position substantially corresponding to the position of the column, and is positioned below the heat-sealing member. It is characterized in that it is provided with a fumigant gas injection port for injecting a fumigant gas into the smoked box from a lower portion of the smoked box provided.

[0012]

[Action]

 According to the above means, the heat insulating tunnel covers the upper part and both sides of the smoldering box, so that heat radiation from the smoldering box is suppressed. Moreover, inside the heat insulating tunnel, there is a heat seal member made of a heat insulating material that is in sliding contact with the side surface of the smoking box, so there is a heat seal between the side surface of the smoking box and the outside of the heat insulating tunnel. Therefore, the effect of suppressing heat radiation is significantly enhanced. In this case, by setting the position of the heat seal at a height substantially corresponding to the position of the support pillar on the truck, it is possible to prevent the lower portion of the truck from becoming hot while ensuring the heat insulation in the fired tile portion.

Further, since the heat insulating tunnel is provided so as to open the side of the lower part of the trolley, the smoldering gas inside the smoldering box may leak between the smoldering box and the trolley. However, the gas is immediately diffused into the atmosphere and there is no danger of explosion. Furthermore, since the fumigant gas inlet is also provided below the heat seal member, even if the fumigant gas leaks from the fumigant gas inlet, the gas will be It will quickly diffuse into the atmosphere.

[0014]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. First, the overall configuration of the smoked roof production facility 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 facility, respectively, for transporting 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 baking line 13, a box mounting portion 14, which is located on the inner side and is composed of a tunnel furnace, and a smoker which is a smoldering apparatus according to the present embodiment. The chemical lines 15 are arranged in a row from right to left.

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. 1 and FIG. 2, this trolley | bogie 26 equips the lower part of the mounting stand part 28 made from a refractory which makes a rectangular shape with four wheels 29 which roll on the above-mentioned rail 27. Has been done. Further, a receiving portion 30 for receiving a lower end portion of a smoked box, which will be described later, is provided at a lower portion of 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 fireproof tile is placed on the mounting table portion 28 of the truck 26 with fire resistance. It is designed to be mounted via a product support column 32 and a shelf plate 33. In this case, a large number of tile base materials 31 are placed on the shelf plate 33 in a plurality of rows in a vertical installation state.

Loading of the tile base material 31 onto the carriage 26 is carried out at the loading section 24, and many carriages 26 on which the tile base material 31 is placed repeatedly move and stop on the respective lines described above. It is designed to be forwarded one by one. In this case, as shown by the arrow in FIG. 3, the carriage 26 is sent to the left in the drawing by the working line 23, then is sent to the right on the white background line 22, and is fed to the firing line 13 by the entrance side traverser 11. Sent. Then, the firing process is performed in the firing line 13, the smoke process is performed in the smoke 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 smoke 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, the smoked box 34 is attached to the carriage 26 by a transfer mechanism (not shown).

As shown in FIGS. 1 and 2, the smoked box 34 has a substantially rectangular box-like shape made of iron with an open lower surface that is large enough to cover the trolley 26, and its inner surface is A heat insulating material 35 such as ceramic fiber is thinly lined. Further, the receiving portion 30 of the trolley 26 has a cotton-shaped ceramic fiber housed in a U-shaped groove portion, and as shown in FIG. By fitting the lower end portion from above, the inside of the smoldering box 34 is sealed in a sealed state.

In the smoldering box 34, there are provided a gas inlet 34a (see FIG. 2) and required pipes for introducing the smoldering gas and the inert gas into the smoldering process and the cooling process, respectively. It is provided. In this case, the gas inlet 34 a is provided at the lower portion of one side surface of the smoked box 34 at a height corresponding to the mounting table portion 28 of the carriage 26. Further, on both side surfaces of the smoldering box 34, sealing plates 34b which are in sliding contact with a heat sealing member described later are provided so as to extend in the traveling direction of the carriage 26.

Now, the smoked line 15 will be described in detail. As described above, the rail 27 for guiding the carriage 26 is provided on the floor portion of the smoking line 15 so as to extend in the left-right direction in FIG. A heat insulating tunnel 36 is provided above the rail 27 so as to extend in the same direction.

The heat insulating tunnel 36 is formed by lining a heat insulating material 38 made of ceramic fiber in two layers on an inner surface of a casing 37 made of, for example, iron, and a plurality of supporting pillars 39 are provided to prevent a predetermined distance from the floor. It is provided in a state where the height is raised. In this case, the height position of the lower end of the step heat tunnel 36 is substantially equivalent to the height position of the column 32 on the carriage 26, as shown in FIG.

As a result, the smoky box 34 on the trolley 26 moving on the rail 27 is covered by the heat insulating tunnel 36 at the upper part and the upper part of both sides with a slight gap. .. Further, at this time, both sides of the lower portion of the carriage 26 are open due to the space formed by the pillar portion 39.

On the inner surface of the lower edge portion of the heat insulating tunnel 36, a heat seal member 40 made of a heat insulating material such as block-shaped or blanket-shaped ceramic fiber extends in the traveling direction of the carriage 26 and extends in the heat insulating tunnel 36. It is provided so as to project inward. As a result, as the trolley 26 advances, the smoldering box 34 moves while the sealing plate 34b is in pressure contact with the heat sealing member 40, so that the smoldering box 34 and the heat insulating tunnel 36 are heated. It is supposed to be sealed.

Further, the smoked line 15 is provided with a smoked gas injection device for injecting a smoked gas such as butane or propane into the smoked box 34. Although not shown in detail, this smoked gas injection device is provided with a gas injector 41 (only one is shown) provided on one side of the rail 27 at a predetermined interval (stop interval of the smoked box 34). The smoked gas is supplied from a gas supply source through a pipe. In this case, the gas injector 41 is located below the heat insulating tunnel 36 between the pillars 39, and its inlet 41a is the gas inlet of the smoked box 34 stopped at a predetermined position. 34a is connected to inject the smoked gas into the smoked box 34.

As a result, in the smoked line 15, the smoked gas is introduced into the smoked box 34 in a sealed state (oxygen-deficient state), and the gas is thermally decomposed to generate carbon. Adheres to the fired roof tile 31 in a permeating state, and the fired roof tile 31 is colored silver.

The carriage 26 that has completed the smoke 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. ing. As a result, even in the cooling process, the reducing atmosphere in the smoked box 34 is maintained, and the carbon is fixed to the fired roof tile 31.

Further, after the firing roof tile 31 is cooled to about 340 ° C. where there is no risk of carbon reaction by the second cooling line 16, the smoke removing box 34 is removed from the carriage 26 at the box removing section 17. To be done. Thereafter, 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 fired through the exit side traverser 12. After passing through the product line 21, the product is sent to the product recovery unit 25 of the work line 23, where the baked product 31 is recovered.

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 smoldering box 34 is sent to the next smoldering line 15, and the heat insulating tunnel 36 covers the upper half of the smoldering box 34. A smoked gas is injected into the smoked box 34, and a smoked process of attaching 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, and the next step of smoldering is performed as much as possible in the high temperature state obtained in the firing step. It is desirable to maintain and suppress the temperature drop. This is because the temperature in this smoking process affects the coloring of the fired roof tiles, and if the temperature drop is large, the fired roof tiles 31 become black and it becomes impossible to obtain a clean silver-colored smoked roof tiles.

In this embodiment, the heat insulating tunnel 36 covers the upper part and both sides of the smoldering box 34, so that heat radiation from the smoldering box 34 is suppressed. Moreover, since the heat seal member 40, which is in sliding contact with the side surface of the smoked box 34, is provided inside the heat insulating tunnel 36, heat is sealed between the smoked box 34 and the heat insulating tunnel 36. However, the effect of suppressing heat radiation is remarkably enhanced, and the process of smoking is carried out while maintaining a high temperature.

In this case, since the position of the heat seal is set to a height approximately corresponding to the position of the support column 32 on the carriage 26, the wheels 29 and the wheels 29 under the carriage 26 are secured in a state where heat insulation is secured in the portion of the fired tile 31. It is possible to prevent the temperature of the receiving portion 30 from increasing.

Further, since the heat insulating tunnel 36 is provided so as to open the side of the lower portion of the trolley 26, the smoldering gas inside the smoldering box 34 can be discharged from between the smoldering box 34 and the trolley 26. Even if it leaks, the gas is immediately diffused into the atmosphere and there is no danger of explosion. Further, since the inlet 41a of the gas injector 41 is also provided below the heat seal member 40, the smoked gas is supplied from the inlet 41a at the outside of the smoked box 34 at the time of introducing the smoked gas. Even if it leaks into the atmosphere, the gas will quickly diffuse into the atmosphere.

As described above, according to this embodiment, since the heat insulating tunnel 36 is provided in the smoked line 15, even if there is a situation in which the effect of suppressing heat radiation by the smoked box 34 itself cannot be increased so much. As a result, it is possible to effectively suppress the heat radiation from the smoked box 34, and thus it is possible to stably produce a high quality smoked roof as compared with the conventional one.

Since the heat insulating tunnel 36 is configured to cover only the upper portion of the smoked box 34, even if gas leaks from the inside of the smoked box 34 or from the gas injector 41, the It does not become a high concentration and can prevent explosion before it happens. At the same time, it is possible to prevent the lower portion of the carriage 26 from being heated to a high temperature and prevent the wheels 29 and the like from being adversely affected.

The present invention is not limited to the above-described embodiment, and various modifications may be made to the arrangement of each line, for example, and various modifications may be made without departing from the scope of the invention. It is possible.

[0043]

[Effect of the device]

 As is clear from the above description, according to the smoldering device of the smoky tile production equipment of the present invention, it extends in the traveling direction of the trolley and covers the upper part and both sides of the smoldering box and opens the side of the lower part of the trolley. The heat-insulating tunnel, the heat-sealing member made of a heat-insulating material that extends inside the heat-insulating tunnel in the traveling direction of the trolley and is in sliding contact with the side of the smoking box at a height substantially corresponding to the position of the pillar, and the heat-sealing member. Since the smoked gas injection port for injecting the smoked gas into the smoked box from the lower part of the smoked box is provided below the member, the heat radiation from the smoked box can be effectively suppressed. In addition, it also has the excellent practical effect of being able to prevent explosions due to gas leaks.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, and is a perspective view of a main part showing a heat insulating tunnel in a cutaway manner.

FIG. 2 is a vertical cross-sectional view of the main part

FIG. 3 is a plan view schematically showing the entire production facility.

FIG. 4 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 (smoking device), 26 is a trolley, 27 is a rail, 28 is a mounting table part, 29 is a wheel, 30 is a receiving part, 31
Is a tile base material (fired roof tile), 32 is a pillar, 34 is a smoke box, 34a is a gas inlet, 34b is a sealing plate,
Reference numeral 35 is a heat insulating material, 36 is a heat insulating tunnel, 37 is a casing, 38 is a heat insulating material, 40 is a heat sealing member, 41 is a smoked gas injector, and 41a is an inlet.

Claims (1)

[Scope of utility model registration request] 1. A trolley in which a tile base material is placed via struts,
A firing process in which the roof tile base is heated by heating while moving in a tunnel-shaped firing furnace, and a smoldering gas is put into the smoldering box while moving while the trolley is covered with a smoldering box. In a smoldering tile production facility for continuously performing a smoldering process for adhering carbon to the fired roof tile, in a device for performing the smoldering process, in the traveling direction of the trolley, the top of the smoldering box and An adiabatic tunnel that covers both sides and opens the sides of the lower part of the bogie, and is provided inside the adiabatic tunnel so as to extend in the traveling direction of the bogie. A heat-sealing member made of a heat insulating material that is in sliding contact with a substantially corresponding height position, and is provided below the heat-sealing member. A fumigating apparatus for a fumigation tile production facility, comprising: