JPH1122928A - Cremating method and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain the generation of public pollution and contrive the saving of an expense by a method wherein the electrolysis of water is effected by midnight electric power to obtain hydrogen and oxygen while the hydrogen is utilized as fuel and the oxygen is utilized for the re-combustion of a body to be cremated as well as unburnt fuel gas generated from the body to be cremated. SOLUTION: A cremating furnace 1A cremates employing oil as fuel and is constituted of a main combustion chamber 2 and a re-combustion chamber 3. The cremating furnace 1A is provided with a gas generator 6, generating hydrogen and oxygen by the electrolysis of water. On the other hand, the main combustion chamber 2 of the cremating furnace 1A is provided with a plurality of first nozzles 11 and second nozzles 12, which are arranged on the side wall of the main combustion chamber 2 and are arrayed so as to be projected into the chamber. The first nozzles 11 of a lower stage inject hydrogen, reserved in a first tank 7. The second nozzles 12 of an upper stage discharge oxygen, reserved in a second tank 8. The mixed gas of hydrogen and compressed air is supplied and ignited whereby the flame of the mixed gas can be arrived surely at the objective position of the body to be cremated. On the other hand, the second tank 8 is connected to the second nozzles 12 through an oxygen supplying passage 17 to supply the oxygen into the main combustion chamber 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention converts inexpensive midnight power into thermal energy and supplies it to cremation, thereby reducing the amount of fuel originally used for cremation and simultaneously purifying exhaust gas. The present invention relates to a cremation method and device for promoting cremation.

[0002]

2. Description of the Related Art Cremation furnaces are generally cremated with fuel gas such as city gas or propane gas, or fuel oil such as kerosene. Therefore, research and efforts have been made to reach the emission values of these toxic gases up to the regulation values set by local government directives.However, even the allowable values are mixed with toxic gases, Complete clean gasification is almost impossible. By cremation using an electric heater,
It is most preferable because it produces no toxic gas from the heater due to electricity and is clean. However, as is well known, electric energy is more expensive than other fuels and is hesitant to use.

[0003]

By the way, clean electric energy is provided inexpensively as late-night power, and it has been proposed to use late-night power in a crematorium.
Crematory work is performed during the day, and it is impossible to use power at midnight. However, there is a way to accumulate electric energy in the middle of the night and use it during the day, and the means devised there is to keep the inside of the cremation furnace heated at midnight and try to contribute to combustion during cremation by the heat However, even though the cremation furnace was constructed using heat-resistant and heat-insulating materials, the results of the trial calculations did not indicate that it was an effective use of electricity, and it was considered almost impossible to use electricity effectively at midnight.

[0004] The present invention reconsiders the means of using midnight power for crematory furnaces, effectively using clean energy as it is, greatly reducing the occurrence of pollution, and reducing the cost of conventional fossil fuels. The purpose is to be able to process at low cost.

[0005]

Means for Solving the Problems A solution of the present invention is to electrolyze water with midnight power, store hydrogen and oxygen, use the hydrogen as fuel, and generate oxygen from the cremation body and the cremation body. It is used for reburning unburned gas. However, since hydrogen itself is not suitable for cremation, a method is employed in which flaming is performed by mixing compressed air with hydrogen to emit a flame to a target position with respect to the cremation object.

As another solution, hydrogen and oxygen are similarly stored by midnight power, but the hydrogen is mixed with a commercially available fuel gas and cremated with a gas containing a large amount of hydrogen.
In this case, since the fuel gas is pressurized, the flame can be reliably radiated to the target position in a stable state and cremated, and oxygen contributes to reburn as in the above-mentioned solution. It is.

The above method can be realized by the following two devices. One of them is adapted to a crematory furnace equipped with a burner for fuel oil, and a gas generator that generates hydrogen and oxygen by electrolysis of water is provided so that it can be activated by midnight power, and each of hydrogen and oxygen A first nozzle and a second tank are provided for individually storing gas, and a first nozzle that rushes into the cremation furnace to ignite hydrogen and emits a flame, and a second nozzle that emits oxygen is provided. And a mixer for mixing hydrogen and compressed air from a first tank for storing hydrogen and the first nozzle, and a second tank for storing oxygen and the second nozzle.

The other one is applicable to a cremation furnace equipped with a burner for fuel gas. A gas generator for generating hydrogen and oxygen by electrolysis of water is provided so as to be able to be activated by midnight electric power. A first tank and a second tank for individually storing each gas of oxygen and oxygen, a second nozzle protruding into the crematorium, and a fuel gas supply path to the burner; A second tank for storing oxygen is connected to the second nozzle via a mixer for mixing the fuel gas with hydrogen supplied from a tank for storing hydrogen.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described with reference to the drawings. A cremation furnace 1A shown in FIG. 1 is used for cremation using oil as fuel, and a main combustion chamber 2 and a re-combustion chamber 3 are vertically arranged. The main combustion chamber 2 is provided with a main burner 4A for oil, and the recombustion chamber 3 is also provided with a sub burner 5A for oil.

The cremator furnace 1A is provided with a gas generator 6 for generating hydrogen and oxygen by electrolysis of water, and separates hydrogen and oxygen from the gas generator 6 into separate first and second tanks 7, 2. Store in 8. Moreover, the gas generator 6 is connected to an electric circuit 9 dedicated to midnight power and a water supply pipe 10 so that the gas generator 6 can be operated only by commercially available midnight electricity.

On the other hand, as shown in FIG.
A plurality of first nozzles 11 and second nozzles 12 are vertically arranged on both side walls or one side wall of the main combustion chamber 2 of A and are arranged in a row so as to protrude into the chamber. 1
Numeral 1 radiates a flame using hydrogen stored in the first tank 7 as a fuel.
Radiates oxygen stored in the other second tank 8.

By the way, the hydrogen stored in the first tank 7 does not have a pressure enough to flow to the first nozzle 11, and air is required to burn the hydrogen. Even if it burns, it is not suitable for cremation because it cannot emit a flame like the existing main burner 4A. Therefore, a mixer 14A is interposed in a hydrogen supply path 13 connecting the first tank 7 and the first nozzle 11, and compressed air supplied from a compressor 15 flows into the mixer 14A through a pipe 16.

As described above, by supplying a mixed gas of hydrogen and compressed air and igniting, a flame is emitted from the first nozzle 11 toward an extension of the nozzle.
It is possible to reliably reach the target position of the cremation body.

On the other hand, the second tank 8 is connected to the second nozzle 12 by an oxygen supply passage 17 and inserts oxygen into the main combustion chamber 2. In the early stage of the cremation, a large amount of black smoke, that is, unburned gas is generated, and the unburned gas is processed in the reburning chamber 3. However, the processing requires a large amount of oxygen. The combustion is promoted by effectively using the oxygen obtained by the electric power. Since the oxygen is pure oxygen unlike air, the processing efficiency is improved.

In FIG. 1, reference numeral 18 denotes a pump for supplying fuel oil, and reference numeral 19 denotes a blower for secondary combustion air to each burner 4A, 5A.

Next, the cremation furnace 1B shown in FIGS. 3 and 4 crepes using city gas, LP gas, natural gas or the like as fuel. The difference from the cremation furnace 1A is that a main burner 4B dedicated to gas is used. It is the same as the above in that a similar auxiliary burner 5B is provided and a blower 19 for supplying secondary combustion air to each burner is provided.

In the case of the cremation furnace 1B, similarly to the above example,
A gas generator 6 operated by midnight power, and first and second tanks 7 and 8 for individually storing generated hydrogen and oxygen,
Further, a plurality of second nozzles 12 for emitting oxygen are provided on both side walls or one side wall of the main combustion chamber 2 of the cremation furnace 1 </ b> B, and the second nozzle 12 and the second tank 8 are connected by an oxygen supply path 17. Is the same as in the above example.

On the other hand, the hydrogen stored in the first tank 7 is introduced into the fuel gas supply passage 20 through the mixer 1 so that the hydrogen can flow into the main combustion chamber 2 through the fuel gas supply passage 20 to the main burner 4B.
4B, the first tank 7 is connected to the mixer 14B via the hydrogen supply path 13.

The main components of the fuel gas are carbon and hydrogen,
By adding hydrogen to this, a flame of high heat can be obtained, and since the fuel gas is under pressure, a flame suitable for cremation can be emitted.

[0020]

According to the cremation method of the present invention, hydrogen and oxygen obtained by electrolysis of water are stored as a means for utilizing inexpensive energy from midnight power for cremation, and hydrogen is stored during daytime cremation. As a fuel, the combustion is promoted by oxygen.Moreover, since compressed air is mixed with hydrogen as fuel and supplied, the ignited flame can be reliably radiated in the intended direction and cremated. This contributes to the reduction of fuel used conventionally, and since it uses hydrogen as fuel, there is no generation of nox or carbon dioxide during combustion, and the exhaust gas becomes cleaner. It is obtained.

Further, according to the cremation apparatus of the present invention, the cremation furnace can be assembled to an existing cremation furnace, which contributes to the reduction of fuel and the prevention of pollution. become able to.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a cremation furnace provided with a cremation apparatus according to the present invention as viewed from a side.

FIG. 2 is a sectional view of the cremation furnace as viewed from the front.

FIG. 3 is a front sectional view showing another example of a cremation furnace provided with a cremation apparatus according to the present invention.

FIG. 4 is a cross-sectional view of the same seen from the side.

[Explanation of symbols]

 1A, 1B Cremation furnace 4A, 4B Main burner 6 Gas generator 7 First tank 8 Second tank 11 First nozzle 12 Second nozzle 14A, 14B Mixer 20 Fuel gas supply path

Claims (4)

[Claims] 1. A crematorium (1A) that stores hydrogen and oxygen obtained by electrolyzing water using midnight power separately.
At the time of cremation, cremation is performed by using fuel obtained by mixing compressed air with hydrogen obtained by the electrolysis, and oxygen obtained by the electrolysis is supplied into a cremation furnace (1A) to be cremated and unburned. A cremation method characterized by promoting the combustion of gas. 2. A cremation furnace (1B) in which hydrogen and oxygen obtained by electrolyzing water using midnight electric power are individually stored.
At the time of cremating with a fuel gas, the hydrogen obtained by the electrolysis is mixed with the fuel gas and cremated, and the oxygen obtained by the electrolysis is supplied into a cremator furnace (1B). A cremation method characterized by promoting the combustion of unburned gas. 3. A cremation furnace (1A) provided with a main burner (4A) for fuel oil, a gas generator (6) for generating hydrogen and oxygen by electrolysis of water is provided so as to be activated by midnight power. In addition, a first tank (7) and a second tank (8) for individually storing hydrogen and oxygen gases respectively are provided, and they rush into the cremation furnace (1A) to ignite hydrogen and emit a flame. A first nozzle (11) for emitting hydrogen and a second nozzle (12) for emitting oxygen, a mixer (14A) of hydrogen and compressed air from a first tank (7) for storing hydrogen, and the first nozzle (11). The second for connecting the nozzle (11) and storing oxygen
A cremation apparatus, wherein a tank (8) and the second nozzle (12) are connected. 4. A cremation furnace (1B) having a main burner (4B) for fuel gas, a gas generator (6) for generating hydrogen and oxygen by electrolysis of water is provided so as to be able to be activated by midnight power. A first tank (7) and a second tank (8) for individually storing hydrogen and oxygen gases, respectively;
A second nozzle (12) protruding into the cremation furnace (1B) is provided, and a fuel gas supply path (2) to the main burner (4B) is provided.
0), a mixer (14B) of the fuel gas in the supply path (20) and hydrogen supplied from the first tank (7) for storing hydrogen is interposed therebetween, and A cremation apparatus, wherein a second tank (8) for storing oxygen is connected.