JP3227266U - Cremator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily grasp the height position of a furnace body in a brick-made cremation furnace by distributing a load of an upper brick to a brick other than a lower brick. SOLUTION: The cremation furnace mainly includes a brick-made furnace body 3 and a metal furnace frame 5 surrounding the furnace body 3. Further, the furnace body is provided with a main combustion furnace 3a having an inlet formed therein for moving the carriage 1 in and out. The main combustion furnace includes a bogie space 3e for accommodating a bogie and a combustion space 3d located above the bogie space. The main combustion furnace is provided with left and right side walls 12 made of brick, and is provided with an eaves portion 12c projecting inward in the left-right direction at the boundary between the bogie space and the combustion space. The furnace frame is configured such that, in addition to the cover plate 51 that covers the left and right sides of the side wall, a metal receiving object 53 is provided at a portion that receives the eaves portion, and the load of the upper brick is supported. [Selection diagram] Figure 2

Description

The present invention relates to a cremation furnace in which a carriage for mounting a casket can be taken in and out.

The cremation furnace is formed mainly of refractory materials such as bricks and ceramic fibers. More specifically, the cremation furnace includes a furnace body made of a refractory material and a metal furnace frame surrounding the outside of the furnace body (Patent Document 1).

Most of the furnace body is made of bricks, and includes a lower main combustion furnace that burns a casket on a trolley and an upper reburning furnace that burns unburned gas generated in the main combustion furnace. In the main combustion furnace, the eaves part of the left and right side wall parts protrudes inward in the left-right direction from the middle part of the height, the trolley is accommodated in the space below the eaves, and the eaves above the eaves part. The casket is designed to burn in the space. Further, on the left and right side wall portions of the furnace body, a reburning ceiling wall serving as a ceiling of the reburning furnace is installed, and a main burning ceiling wall serving as a ceiling of the main burning furnace is installed.

Utility model registration No. 3161449

Since the furnace body is exposed to high temperatures, damage gradually progresses. Therefore, the furnace body periodically repairs a part of the bricks and replaces the entire bricks every 10 to 20 years while checking the damage.

By the way, in the case of brickwork, the lower brick is subjected to a larger load than the upper brick, so that it is easily deteriorated with age.
Also, when repairing a part of the furnace body, the damaged part of the brick is dismantled, but the dismantled part temporarily becomes hollow. Since the load applied to the demolished brick is applied to the bricks around the cavity, the size of the cavity (demolition amount) must be carefully determined so that the furnace body does not collapse from the periphery of the cavity.
Therefore, it is desirable to be able to disperse the load so that not all of the load on the upper brick is applied to the lower brick.

In addition, when replacing the bricks of the entire furnace body, it is required to stack the bricks accurately, and in particular, if the positions of the eaves, the main burning ceiling wall and the reburning ceiling wall are not accurately grasped, the bricks will have the desired shape. The furnace body cannot be formed.

The present invention was created in consideration of the above situation, and its purpose is to distribute the load of the upper bricks to other than the lower bricks, and to raise the height of the furnace body when accurately stacking the bricks. It is to make it easier to grasp the position.

The cremation furnace of the present invention comprises a main combustion furnace having an inlet for inserting and removing the carriage in the front-rear direction, and a recombustion furnace located above the main combustion furnace and burning gas generated in the main combustion furnace. It includes a furnace body that includes it, a door that opens and closes the entrance, and a metal furnace frame that surrounds the periphery of the furnace body. The furnace body includes left and right sidewalls located on the left and right of the main combustion furnace and the reburning furnace, a ceiling of the main combustion furnace and a floor of the reburning furnace, and a main combustion ceiling wall erected between the left and right sidewalls. , A reburning ceiling wall that constitutes the ceiling of the reburning furnace. Further, the main combustion furnace includes a bogie space part for accommodating the bogie, and a combustion space part located above the bogie space part. The left and right side walls, the main burning ceiling wall and the reburning ceiling wall are provided with brick layers made of brick. The furnace frame is fixed to the left and right covering plates that cover the left and right sides of the furnace body and the left and right covering plates while extending in the front-rear direction, and receives the upper brick while being sandwiched between the upper and lower bricks. And a receivable. The left and right sidewalls include left and right truck space sidewall portions that are arranged on the left and right sides of the truck space portion, and left and right combustion space sidewall portions that are placed on the left and right sides of the combustion space portion. Further, the lower portions of the left and right combustion space side wall portions are eaves portions that project inward in the left-right direction with respect to the left and right bogie space side wall portions. In addition, the receivable is located at the portion that receives the eaves.

There is no limitation on the number of received items, but it is desirable to disperse the load of bricks or stack bricks accurately as follows.
That is, a plurality of receivables will be provided. In addition to the portion that receives the eaves, the receivable is located at the portion of the left and right side walls where the main combustion ceiling wall is installed and at the portion of the left and right side walls where the reburning ceiling wall is installed.

In addition, the length of the receiving object in the left-right direction does not matter, but in order to prevent the burning of the receiving object as much as possible and to distribute the load of the bricks or stack the bricks accurately, do the following. Is desirable.
That is, the brick layer arranged on the lower surface of the metal receiving object is provided with a refractory layer made of refractory bricks and an insulating layer made of heat insulating bricks arranged outside the refractory layer. The receiving material is covered from the inner surface side of the brick layer in the left-right direction, and extends in the left-right direction to the range from the outer side to the outer side of the refractory layer with respect to the heat insulating layer.

According to the cremation furnace of the present invention, since the receiving object is located in the portion that receives the eaves portion, it serves as a guide when forming the eaves portion, and the load of the brick on the upper side with respect to the receiving object and the receiving object Since it is dispersed in the lower brick, the furnace body can be easily repaired, and deterioration of the lower brick can be suppressed as much as possible.

Further, in the cremation furnace of the present invention, in addition to the part that receives the eaves part, the receivables are located on the left and right side walls where the main combustion ceiling wall is installed and the left and right side walls where the reburning ceiling wall is installed. If it is one, it will be a guide when forming the main burning ceiling wall and the reburning ceiling wall, and since the load applied to the brick under these parts can be reduced, it will be easier to repair the furnace body and the lower side The deterioration of bricks can be suppressed as much as possible.

Further, in the cremation furnace of the present invention, the brick layer arranged on the lower surface of the receiving object is provided with a refractory layer and a heat insulating layer, and the receiving object is covered from the inner surface side in the left-right direction of the brick layer. , It is possible to prevent the burnout of the receiving material as much as possible, for example, compared with the receiving material located only on the upper side of the heat insulating layer, the load applied to the brick under the receiving material can be reduced, so that the furnace body can be easily repaired. However, not only the heat-insulating layer but also the refractory layer is used as a guide when the bricks are piled up.

1 is a sectional view of a cremation furnace of a first embodiment of the present invention, showing a state seen from a side direction. It is the II-II sectional view taken on the line of FIG.

As shown in FIGS. 1 and 2, a cremation furnace according to a first embodiment of the present invention includes a furnace body 3 having an entrance 2 for loading and unloading a carriage 1, a door 4 capable of opening and closing the entrance 2 of the furnace body 3, and a door 4. An elevating mechanism (not shown) for elevating and lowering the furnace, a metal furnace frame 5 surrounding the furnace body 3, a main combustion burner 6 fixed to the main combustion furnace 3a constituting the lower part of the furnace body 3, and a furnace body Mainly includes a reburning burner 7 fixed to a reburning furnace 3b that constitutes the upper part of 3. By the way, in FIG. 2, the main burner 6 and the reburn burner 7 are omitted.

The furnace body 3 is formed by a front wall 11, left and right side walls 12, a rear wall 13, a floor wall 14, and a ceiling wall 15 into a box shape that is long in the front-rear direction. The upper part of the furnace body 3 is the reburning furnace 3b as described above. Therefore, the box-shaped ceiling wall 15 is the reburning ceiling wall 15 that constitutes the ceiling of the reburning furnace 3b, and is installed on the upper ends of the left and right side walls 12. The lower part of the furnace body 3 is the main combustion furnace 3a as described above. The main combustion furnace 3a and the re-combustion furnace 3b are vertically partitioned. This partition is a main-combustion ceiling wall 16 that constitutes the ceiling of the main combustion furnace 3a and the floor of the re-combustion furnace 3b, and is erected in the middle of the height of the left and right side walls 12.
The reburning ceiling wall 15 and the main burning ceiling wall 16 are formed in an arc shape that bulges upward when viewed from the front-rear direction, and the left and right intermediate portions are located higher than the left and right end portions.
Further, the main-combustion ceiling wall 16 is formed with a space on the front side with respect to the rear wall 13, and a part of this space connects the internal space of the main combustion furnace 3a and the internal space of the re-combustion furnace 3b. It becomes the road 3c. Further, a hanging wall 17 hangs from the front side of the communication path 3c at the rear part of the main combustion ceiling wall 16.

The front wall 11 is installed above the upper parts of the front surfaces of the left and right side walls 12. The front wall 11 is not installed in the lower part of the front surface of the left and right side walls 12, and the opening 2 is formed in the lower part of the front surface of the main combustion furnace 3a. This opening 2 serves as an entrance 2 through which the carriage 1 is put in and taken out.

The center portion of the floor wall 14 in the left-right direction is a hollow portion 18. The cavity 18 is made of metal and has a box shape. A plurality of rails 19 are fixed to the upper surface of the hollow portion 18, that is, the floor surface of the main combustion furnace 3a, and the rails 19 extend in the front-rear direction. Further, a rear portion of a conveyor device (not shown) is installed in the hollow portion 18, and a front portion of the conveyor device is installed in a lower space of a front chamber (not shown) on the front side of the furnace body 3. The conveyor device includes a moving mechanism that reciprocates the carriage 1 in the front-rear direction, and a connecting mechanism (not shown) that can be connected to and released from the carriage 1.

A main combustion burner 6 is fixed to a portion of the rear wall 13 corresponding to the main combustion furnace 3a via a furnace frame 5 so as to be vertically swingable. The reburn burner 7 is fixed to a portion of the rear wall 13 corresponding to the reburn burner 7 via the furnace frame 5. Through holes 13a and 13b for accommodating the front ends of the main combustion burner 6 and the reburning burner 7 are formed in the rear wall 13 and the furnace frame 5.

When cremated by the main combustion burner 6, the gas (unburned gas) generated in the internal space of the main combustion furnace 3a is guided from the lower end of the hanging wall 17 to the internal space of the recombustion furnace 3b through the communication path 3c and reburned. It is reburned by the burner 7. Further, an exhaust port 15a that communicates in the vertical direction is formed in the front part of the reburning ceiling wall 15 of the reburning furnace 3b, and the gas after reburning is discharged from the exhaust port 15a.

In the main combustion furnace 3a, the upper space of the internal space is a combustion space 3d for burning the casket on the truck 1, and the lower space of the internal space is a truck space 3e for housing the truck 1.

The left and right side walls 12 are formed so that the inner surfaces thereof are vertical with respect to the reburning furnace 3b. Further, the left and right side walls 12 are such that the upper part of the main combustion furnace 3a projects inward in the left-right direction with respect to the lower part thereof. More specifically, with respect to the main combustion furnace 3a, the left and right side walls 12 are the left and right truck space side wall portions 12a arranged on the left and right sides of the truck space portion 3e, and the left and right combustion spaces left and right of the combustion space portion 3d. And a side wall portion 12b.
The inner surfaces of the left and right side wall portions 12a for bogie spaces are formed in vertical planes, and are in a state of being close to the side surfaces of the bogie 1 housed in the bogie space 3e.
Lower portions of the left and right side wall portions 12b for combustion space are eaves portions 12c protruding inward in the left-right direction with respect to the left and right side wall portions 12a for bogie spaces. More specifically, the eaves portion 12c includes an upper portion that is located directly above the truck space side wall portion 12a, and an eave portion body that extends from the upper portion to the inside of the truck space side wall portion 12a in the left-right direction. The lower surface of the eaves portion main body (the lower surface of the inner portion in the left-right direction of the eaves portion 12c) comes into a state of being close to the upper surfaces of the left and right end portions of the carriage 1. The inner surface of the eaves portion 12c in the left-right direction is a slope that projects inward in the left-right direction as it goes downward. The left and right side walls 12b for the combustion space have a vertical plane above the eaves 12c.

The furnace body 3 includes a brick layer 21 made of bricks that constructs the outer shapes of the main combustion furnace 3a and the reburning furnace 3b, and a ceramic fiber layer 22 that covers a part of the inner surface of the brick layer 21. The brick layer 21 is formed by stacking bricks in the front, rear, left, right, and top and bottom. The ceramic fiber layer 22 has a higher fire resistance than the brick layer 21, and is a ceramic fiber plate.

In the reburning furnace 3b, the left and right side walls 12 and the reburning ceiling wall 15 are formed by the brick layer 21 and the ceramic fiber layer 22, and the front wall 11 and the rear wall 13 are formed only by the brick layer 21.
In the main combustion furnace 3a, the side wall portion 12b for the combustion space of the left and right side walls 12 is formed by the brick layer 21 and the ceramic fiber layer 22, and the side wall portion 12a for the truck space of the side wall 12 and the floor wall 14 Other than the cavity 18, the front wall 11 and the rear wall 13 are formed only by the brick layer 21.
Further, the main-combustion ceiling wall 16 is formed by an upper brick layer 21 and a lower ceramic fiber layer 22 with respect to the front side portion of the hanging wall 17, and is formed with only the brick layer 21 from the hanging wall 17 to the rear side portion. I have it.

The furnace frame 5 is made of metal. Further, the furnace frame 5 is fixed to the covering plate 51 that covers the outer surfaces of the left and right side walls 12, the front wall 11, and the rear wall 13, the reinforcing member 52 fixed to the outer surface of the covering plate 51, and the inner surface of the covering plate 51. And a receiving object 53 that receives the upper brick while being sandwiched between the upper and lower bricks.

To fix the reinforcing material 52 and the metal receiving object 53 to the cover plate 51, spot welding is used, for example. As the reinforcing material 52, for example, channel steel or H-section steel is used.

For example, chevron steel is used as the receiving object 53. The angle steel has an “L” shape when viewed from the front-rear direction and extends along the front-rear direction. The chevron steel as the metal receiving object 53 is composed of one piece 53a extending in the vertical direction and the other piece 53b extending in the left-right direction.
The one piece 53a extending in the vertical direction is a fixed piece 53a that is fixed to the left and right inner surfaces of the covering plate 51 that covers the outer surface of the left and right side walls 12 of the furnace body 3. Further, the fixing piece 53a is fixed with the "L"-shaped bent portion facing upward.
The other piece 53b extending in the left-right direction is a receiving piece 53b that receives the upper brick while being sandwiched between the upper and lower bricks.
The receiving piece 53b of the receiving object 53 has a portion for receiving the eaves portion 12c (immediately above), a portion of the left and right side walls 12 where the main combustion ceiling wall 16 is installed, and a reburning ceiling wall 15 of the left and right side walls 12 is installed. It is located in three different parts with the part that does.

The brick layers 21 on the left and right sidewalls 12 are, in most parts of the entire height range except for the above-mentioned three parts, a refractory layer 23 made of refractory bricks and heat insulation disposed outside the refractory layer 23. And a heat insulating layer 24 made of brick. By the way, refractory bricks have fire resistance and heat storage properties, and are easy to warm up and hard to cool. Insulating bricks are inferior in fire resistance and superior in heat insulating property, and are hard to heat and easy to cool.

More specifically, the structure of the brick layer 21 arranged on the lower surface of the receiving object 53 is the same in all three places, that is, both the fireproof layer 23 and the heat insulating layer 24. However, the heat insulating layer 24 is arranged on the lower surface of the receiving object 53 over the entire range in the left-right direction, but the refractory layer 23 is arranged on the lower surface of the receiving object 53 only on the outer side in the left-right direction. In other words, the receiving piece 53b of the metal receiving object 53 extends with respect to the length in the left-right direction from the outside with respect to the heat insulating layer 24 to the extent reaching the outside portion of the fireproof layer 23, and the inside portion of the fireproof layer 23 (of the brick layer 21). It is covered from the inner surface side in the left-right direction).

On the other hand, the structure of the brick layer 21 arranged on the upper surface of the receiving object 53 (receiving piece 53b) is different in three places.
Regarding the eaves portion 12c, the irregular refractory 25 is disposed on the upper surface of the receiving object 53 in the left-right direction with respect to the left and right covering plates 51, and the special refractory 25 is disposed inside the irregular refractory 25 in the left-right direction. The block 26 is arranged. By the way, the irregular refractory 25 and the special refractory block 26 are types of refractory, and, strictly speaking, they are not bricks according to the JIS standard (JIS R 2001), but bricks are also a type of refractory, so this specification In the above, the irregular-shaped refractory 25 and the special refractory block 26 are also handled as bricks. The irregular-shaped refractory 25 is made by being constructed at the installation site of the cremation furnace, and the special refractory block 26 and other bricks are made in a desired shape in advance in the factory.
Regarding the portion where the main combustion ceiling wall 16 is installed, the irregular refractory 25 is disposed on the upper surface of the receiving object 53 inward in the left-right direction with respect to the left and right covering plates 51, and left and right with respect to the irregular refractory 25. A refractory brick 27 is arranged inside the direction.
Regarding the portion where the reburning ceiling wall 15 is installed, only the refractory bricks 27 are arranged on the upper surface of the receiving object 53.

In the cremation furnace of the first embodiment of the present invention, since the receiving object 53 is located at the portion that receives the eaves portion 12c, it serves as a guide when forming the eaves portion 12c, and the bricks above the receiving object 53 are used. Since the load is distributed to the receiving object 53 and the bricks below it, the furnace body 3 can be easily repaired, and deterioration of the bricks below can be suppressed as much as possible.

Further, in the cremation furnace of the first embodiment of the present invention, the main combustion ceiling wall 16 is installed on the left and right side walls 12 and the reburn ceiling wall 15 is installed on the left and right side walls 12, in addition to the eaves portion 12c. Since the receiving object 53 is located in the portion where the main burning ceiling wall 16 and the reburning ceiling wall 15 are formed, the load applied to the bricks under each of these portions can be reduced. The body 3 can be easily repaired, and deterioration of the lower brick can be suppressed as much as possible.

Further, in the cremation furnace of the first embodiment of the present invention, the brick layer 21 arranged on the lower surface of the metal receiving object 53 includes the fireproof layer 23 and the heat insulating layer 24, and the metal receiving object 53 is the inner surface side of the brick layer 21 in the left-right direction. Since it is covered from the above, the burnout of the receiving object 53 can be prevented as much as possible, and the load applied to the brick below the receiving object 53 can be reduced as compared with, for example, the case where the receiving object 53 is located only above the heat insulating layer 24. Therefore, the furnace body 3 can be easily repaired, and the received material 53 can be used as a guide when the bricks of the refractory layer 23 as well as the heat insulating layer 24 are piled up.

The present invention is not limited to the above-described embodiment, but can be modified as appropriate without departing from the spirit of the invention. For example, the receiving object 53 has an “L” shape in the above-described embodiment, but the present invention is not limited to this and may be any as long as the receiving piece 53b is sandwiched between upper and lower bricks, such as a “T” shape. Other shapes may be used.

1 dolly 2 entrance (opening)
3 furnace body 3a main combustion furnace 3b re-combustion furnace 3c connecting path 3d combustion space part 3e bogie space part 4 door 5 furnace frame 6 main combustion burner 7 re-combustion burner 11 front wall 12 side wall 12a bogie space side wall part 12b combustion space side wall Part 12c Eaves part 13 Rear wall 13a, 13b Through hole 14 Floor wall 15 Ceiling wall (reburning ceiling wall)
15a Exhaust port 16 Main combustion ceiling wall 17 Hanging wall 18 Cavity 19 Rail 21 Brick layer 22 Ceramic fiber layer 23 Fireproof layer 24 Thermal insulation layer 25 Amorphous refractory 26 Special fireproof block 27 Fireproof brick 51 Cover plate 52 Reinforcement material 53 Receiving material 53a One piece (fixed piece)
53b Other piece (receiving piece)

Claims (3)

Opening and closing the furnace body, which includes a main combustion furnace having an inlet for moving the truck in and out in the front-rear direction, and a reburning furnace that is located above the main combustion furnace and burns gas generated in the main combustion furnace Equipped with a door and a metal furnace frame that surrounds the furnace body,
The furnace body includes left and right sidewalls located on the left and right of the main combustion furnace and the reburning furnace, a ceiling of the main combustion furnace and a floor of the reburning furnace, and a main combustion ceiling wall erected between the left and right sidewalls. A reburning ceiling wall that constitutes the ceiling of the reburning furnace,
The main combustion furnace includes a bogie space part for accommodating a bogie, and a combustion space part located above the bogie space part,
The left and right side walls, the main burning ceiling wall and the reburning ceiling wall have brick layers made of bricks,
The furnace frame is fixed to the left and right covering plates that cover the left and right sides of the furnace body, and is fixed to the left and right covering plates while extending in the front-rear direction, and receives the upper brick while being sandwiched between the upper and lower bricks. With hardware,
The left and right sidewalls include left and right truck space sidewall portions that are disposed on the left and right of the truck space portion, and left and right combustion space sidewall portions that are disposed on the left and right sides of the combustion space portion,
The lower portions of the left and right side walls for the combustion space are eaves that extend inward in the left-right direction with respect to the left and right side walls for the truck space,
The cremation furnace characterized in that the received material is located in the part that receives the eaves. With multiple receipts,
In addition to the portion receiving the eaves, the receivable is located at a portion of the left and right side walls where the main combustion ceiling wall is installed and a portion of the left and right side walls where the reburning ceiling wall is installed. The cremation furnace described in 1. The brick layer arranged on the lower surface of the receiving object includes a refractory layer made of refractory brick, and a heat insulating layer made of heat insulating brick arranged on the outer side in the left-right direction with respect to the fire resistant layer,
The received product is covered from the inner surface side of the brick layer in the left-right direction, and extends in the left-right direction to the range from the outer side to the outer side of the refractory layer with respect to the heat insulating layer. The cremation furnace according to 1 or 2.

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