JPH05667Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) This invention relates to a crematorium equipped with a damper for controlling burner flame in the main combustion chamber.

(Prior Art) Crematoriums equipped with a main combustion chamber and a reburning chamber are generally constructed as shown in Fig. 8. That is, 1 is the crematorium body, 2 is the main combustion chamber, and 3 is the reburning chamber. A combustion burner 4 is provided at the rear of the main combustion chamber 2, and an opening/closing door 6 is provided at the front entrance 5. An exhaust port 7 is provided on the upper wall of the main combustion chamber 2 near the entrance 5, which communicates with the reburning chamber 3, and a smoke exhaust port 8 is provided in the reburning chamber 3.

Then, the coffin 9 containing the corpse is placed on the cremation trolley 10, introduced into the main combustion chamber 2 as it is, and the combustion burner 4 is ignited to perform cremation. In this case, the burner flame a generated from the combustion burner 4 is injected toward the front of the main combustion chamber 2, but since the exhaust port 7 is provided on the upper wall near the front, the burner flame a The flame a rises toward the exhaust port 7. In other words, cremation cart 10
Since the burner flame a passes between the upper surface of the coffin 9 placed on the coffin 9 and the upper wall of the main combustion chamber 2, the burner flame a cannot be effectively guided to the coffin 9 containing the corpse.

In addition, the waist and abdomen of a corpse are the most difficult to burn compared to other parts, but as mentioned above, the burner flame a
If the body passes through the top surface of the coffin 9, the cremation time becomes longer, and there is a problem that the body cannot be cremated in a short time.

On the other hand, the coffin mounting table 10a of the cremation cart 10
Conventionally, the frame body 10b is formed in a solid state in which a thick mounting plate 10c is installed inside a frame body 10b whose top surface is open. Therefore, the mounting plate 10c is in close contact with the bottom surface of the coffin 9 placed on its upper surface, and since no air can enter, the combustion rate in this area is slow, especially from the shoulders to the waist, which are the least combustible parts of the corpse. It takes a long time and a large amount of fuel to completely burn that part.

(Problems to be solved by the invention) As mentioned above, conventional crematoriums have the problem of poor combustion efficiency and long cremation time.

This idea was developed with the above-mentioned circumstances in mind, and its purpose is to effectively direct the burner flame toward the coffin, improve combustion efficiency, and improve the burnability of the dead body, which is the least flammable part of the body. To provide a crematorium which can cremate a corpse in a short time by improving the combustion efficiency from the waist to the waist.

[Structure of the idea]

(Means and effects for solving the problem) In order to achieve the above-mentioned object, this invention forms the coffin mounting base of the cremation trolley into a hollow shape, and the cremation trolley is mounted on the side of the coffin mounting base. When introduced into the combustion chamber, an air supply hole connected to the air pipe and a number of exhaust holes are provided on the top surface of the coffin table, while a damper that can be raised and lowered is installed on the upper wall of the main combustion chamber. The damper is provided with an air nozzle to control the burner flame generated from the combustion burner, and to blow out high-pressure air diagonally downward at least on the side surface of the damper facing the combustion burner.

Then, secondary air is blown in from the bottom of the coffin to promote combustion, and a damper is used to close the gap between the coffin and the upper wall of the main combustion chamber, and this damper is lowered as the cremation progresses. The burner flame is directed toward the coffin by high-pressure air jetted from an air nozzle.

(Embodiment) Hereinafter, an embodiment of this invention will be described based on the drawings, and the same components as those in the prior art will be given the same numbers and the explanation will be omitted.

In FIGS. 1 to 7, 11 is a damper device, and 12 is provided on the upper wall of the main combustion chamber 2 so as to be movable up and down, and closes the space between the upper surface of the coffin 9 and the upper wall of the main combustion chamber 2. It is a damper. The damper 12 is made of a heat-resistant refractory or ceramic material and has a rectangular shape, and is installed in a damper storage chamber 13 provided on the inner wall of the exhaust port 7 so as to be movable up and down.
Inside the damper 12, there is formed an air passage 16 consisting of a horizontal pipe 14 opening at both end faces and a plurality of vertical pipes 15 communicating with the horizontal pipe 14, and corresponding to the vertical pipes 15. A plurality of air nozzles 17..., 18... are provided on both sides. Among these air nozzles, the air nozzle 1 facing the combustion burner 4 side of the main combustion chamber 2
7 are oriented obliquely downward, and the air nozzles 18 .

Lower air pipes 19, 19 are provided on both end surfaces of the damper 12 to connect to the horizontal pipe 14. Both ends of these lower air pipes 19, 19 are bent upward, and these ends are connected via telescopic pipes 20, 20 to an upper air pipe 21 whose both ends are bent downward. .
Furthermore, the middle portion of this upper air pipe 21 is connected to a discharge port 23 of a blower 22. Also,
Support members 24, 24 are protruded from the bent portions of the lower air pipes 19, 19, and both ends of a hanging wire 26 wound around a winding drum 25 are connected to the support members 24, 24. has been done. By rotating the winding drum 25, the suspension wire 26 is wound up and let out, thereby making it possible to raise and lower the damper 12.

Both ends of the lower air pipes 19, 19 protrude to the outside of the main body 1 through gaps 28, 28 provided in the side wall 27 of the main body 1, so that the telescopic pipes 20, 20 and the upper air pipe 21
installed outside. Therefore, the main combustion chamber 2 is in communication with the outside of the main body 1 through the gaps 28, 28, and this communication section is closed to the exhaust gas and the burner flame a by an air curtain to be described later.
prevents leakage to the outside. That is, on the side wall of the main body 1 facing the gaps 28, 28, inverted U-shaped air jet pipes 29, 29 are installed so as to straddle the lower air pipes 19, 19. And this air jet pipe 29,2
The upper end of 9 is connected to the upper air pipe 21, and this air jet pipe 29 has a gap 28,
Nozzles 31 are provided that eject air toward the air curtain 28 to form an air curtain 30.

Further, the cremation cart 10 on which the coffin 9 is placed is formed by a hollow coffin mounting base 32. This coffin mounting table 32 has an air chamber 35 formed therein by closing the upper opening of a bottomed box-shaped frame 33 with a mounting table 34 . Further, the front wall 36 of the coffin mounting table 32 is provided with an air supply hole 37, and the mounting table 34 has a large number of exhaust holes 38...
is drilled. Further, an axle 40 is provided at the lower part of the coffin mounting table 32 via a frame 39, and wheels 41, 41 are mounted on this axle 40.

On the other hand, the wheels 4 are located at the bottom of the main combustion chamber 2.
Rails 42, 42 on which the cremation trolley 10 travels are laid. Also,
An air supply pipe 43 connected to an air supply source such as a blower is provided near the bottom at the rear of the main combustion chamber 2 . This air pipe 43 has a tapered tip, and the cremation cart 10 is introduced into the main combustion chamber 2.
When installed at a predetermined position, the positional relationship is such that it is connected to the air supply hole 37 provided in the coffin mounting table 32. The air sent from the air pipe 43 is sent into the air chamber 35 of the coffin mounting table 32 via the air hole 37, and this air is sent to the air chamber 35 of the coffin mounting table 34 through the air exhaust hole 35 of the mounting plate 34.
... is blown out toward the bottom of the coffin 9 to promote combustion as secondary air for combustion.

Next, the operation of the crematorium constructed as described above will be explained.

A coffin 9 containing a dead body is placed on a cremation cart 10, an opening/closing door 6 of the crematorium is opened, and the coffin 9 and the cremation cart 10 are put into the main combustion chamber 2 through the entrance 5.
The opening/closing door 6 is closed, and the winding drum 25 of the damper device 11 is rotated to let out the hanging wire 26.
Then, the damper 12 is lowered to contact or approach the upper surface of the coffin 9, and the damper 12 closes the space between the upper surface of the coffin 9 and the upper wall of the main combustion chamber 2. In addition, the blower 22 is operated to suck in outside air,
It is discharged from the discharge port 23. The discharged air flows through the upper air pipe 21, the telescopic pipe 20, and the lower air pipe 19 in this order, and is sent into the damper 12. The air sent to the damper 12 is injected into the main combustion chamber 2 from the air nozzles 17 and 18 through the air passage 16. In this case, the air nozzles 17 facing the combustion burner 4 side of the main combustion chamber 2 inject the air diagonally downward, and the air nozzles 18 facing the inlet/outlet 5 side of the main combustion chamber 2
...is sprayed diagonally downward.

In addition, the cremation cart 10 is introduced into the main combustion chamber 2,
When installed in the predetermined position, the air pipe 43 connects to the air hole 37.
The air supplied from the air supply pipe 43 passes through the air supply hole 37 to the air chamber 35 of the coffin mounting table 32.
sent to. The air sent into the air chamber 35 is blown out from the exhaust holes 38 of the mounting plate 34 toward the bottom surface of the coffin 9.

In this state, when the combustion burner 4 is ignited, the burner flame a is injected toward the exhaust port 7 of the main combustion chamber 2, but a damper 12 is provided along the way, and a high pressure Since the air is injected diagonally downward, the direction of the burner flame a heading toward the exhaust port 7 is changed downward. In other words, the burner flame a is forcibly pushed toward the coffin 9 placed on the cremation cart 10, and at this time, oxygen is supplied by the air injected from the air nozzles 17, promoting complete combustion. . Moreover, it is blown out toward the bottom of the coffin 9 from the exhaust holes 38 provided in the mounting plate 34 of the cremation cart 10, and is supplied as secondary air for combustion from the bottom of the coffin 9 from the shoulder to the waist of the corpse. This accelerates the combustion rate and shortens cremation time. In addition, the bodies stored in coffin 9 are located in the main combustion chamber 2.
The burner flame a is located between the rear part of the damper 12 and the damper 12.
2 and high-pressure air, it is directed downward, so that hard-to-burn parts can be burned efficiently. The burner flame a that has passed under the damper 12 is directed diagonally upward by high-pressure air injected from the air nozzles 18 of the damper 12 and reaches the exhaust port 7, and the exhaust gas is passed through the re-combustion chamber 3. The smoke is then exhausted from the smoke exhaust port 8.

As combustion progresses, the height of the coffin 9 decreases, and the distance between its upper part and the upper wall of the main combustion chamber 2 increases. However, by letting out the winding drum 25, the lower air pipe 19 can be Damper 12 through
can be lowered. Therefore, the burner flame a can be controlled by the damper 12 and high-pressure air from the start to the end of combustion, and the corpse can be cremated in a short time.

Also, during cremation, the damper 12 is exposed to the burner flame a and exhaust gas, but since high-pressure air is constantly ejected from the air nozzles 17 and 18, the burner flame a and the exhaust gas come into contact with the surface of the damper 12. Since it is less affected by heat, durability can be improved.

In the above embodiment, the air nozzles 17 and 18 are provided on both sides of the damper 12, but the air nozzle 17 may be provided only on the side facing the combustion burner 4. Further, as a means for raising and lowering the damper 12, the suspension wire 26 is raised and lowered by the winding drum 25, but this structure is merely an example, and a screw rod rotated by a motor is used. The lifting mechanism is not limited, and may be moved up and down by.

[Effect of idea]

As explained above, according to this invention, the coffin mounting base of the cremation cart is hollow, and secondary air for combustion is sent from the top surface toward the bottom surface of the coffin.
A damper that can be raised and lowered is installed on the upper wall of the main combustion chamber to control the burner flame generated from the combustion burner, and an air nozzle that blows out high-pressure air diagonally downward is installed at least on the side facing the combustion burner of this damper. , the burner can be easily controlled, the combustion efficiency of the body from the shoulders to the waist, which is the most difficult to burn, is improved, and cremation can be done in a short time. Furthermore, since the burner flame and exhaust gas do not come into contact with the damper, the damper is not affected by heat and its durability can be improved.

[Brief explanation of drawings]

Figures 1 to 7 show an embodiment of this invention, in which Figure 1 is a vertical side view of a crematorium, Figure 2 is a schematic vertical side view of the cremator, and Figure 3 is a damper device. FIG. 4 is a vertical cross-sectional side view of the damper, FIG. 5 is a cross-sectional plan view showing how the damper is installed, FIG. 6 is a vertical cross-sectional front view of the cremation cart, and FIG. 7 is a perspective view of the coffin platform. , FIG. 8 is a schematic longitudinal sectional side view of a conventional crematorium. 1... Main body, 2... Main combustion chamber, 3... Reburning chamber, 4... Combustion burner, 5... Entrance/exit, 6... Opening/closing door, 7... Exhaust port, 10... Cremation trolley, 12
...Damper, 17, 18...Air nozzle, 32
...Coffin mounting stand, 37...Air supply hole, 38...Exhaust hole.

Claims (1)

[Scope of utility model registration request] A crematorium main body, a combustion burner provided in the rear part of the main body, a main combustion chamber having an opening/closing door at least at the front entrance and exit, into which a cremation trolley on which a coffin is placed can be inserted and removed, and this main combustion chamber. In the crematorium, the coffin mounting base of the cremation cart is hollow, and the crematorium includes a reburning chamber provided in the upper part of the combustion chamber, and an exhaust port provided in the upper wall near the entrance and exit of the main combustion chamber and communicating with the reburning chamber. When the cremation cart is introduced into the main combustion chamber, the air blown into the air hole connected to the air pipe and the top surface of the coffin table is discharged from the side of the coffin table. A damper is provided on the upper wall of the main combustion chamber to control the burner flame generated from the combustion burner, and high-pressure air is provided at least on the side facing the combustion burner of the damper. A crematorium characterized by being equipped with an air nozzle that blows out diagonally downward.