JP3258265B2 - Incinerator and incinerator management method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incinerator, and more particularly to an incinerator which can completely burn waste such as plastic, rubber, waste oil, paint and the like, and has little smoke emission.

[0002]

2. Description of the Related Art In recent years, waste treatment has become a problem from the viewpoint of pollution prevention. The problem with waste disposal is that when filling up waste, it is necessary to secure a large disposal site, but it is difficult to secure such a place. In addition, waste oil and the like have a problem that if they are discarded in the same place as general garbage and the like, they may cause a problem of contamination of water resources.

[0003] Incineration of waste is convenient because the amount of waste can be reduced, but causes a problem that exhaust gas such as harmful nitrogen oxides pollutes the atmosphere. In addition, there is a concern that exposure to dioxin, dibenzofuran (dioxins), and the like contained in exhaust gas for a long period of time may adversely affect the human body. Furthermore, incineration of wastes such as plastics requires burning at high temperatures, which causes damage to the incinerator and shortens its life.

For example, in the treatment of waste tires, various incinerators have been conventionally provided, but all of them are small in size and generate little heat, and few satisfy the condition that no pollution occurs.

[0005] When a waste tire is directly burned, the combustion temperature is extremely high because the tire is mainly composed of rubber. This high temperature damages the incinerator. Further, the carbon content of the rubber, such as carbon black, is emitted as black smoke without being sufficiently combusted, which has been a cause of scattering offensive odor.

[0006] Incinerators include a direct heat type and a dry distillation type. FIG.
1 shows an example of a direct heat incinerator. In a direct heat incinerator, a fire such as waste tires is put in after injecting a treated material, and the treated material starts burning. Although not shown in the drawing, air may be supplied from the lower part of the incinerator. As the material burns, a flame rises upward from the bottom of the incinerator. The temperature distribution in the incinerator at this time is about 600 ° C. in the lower part, about 800 ° C. in the central part, and about 1200 ° C. in the upper part.

As is apparent from this, only the uppermost portion of the processed material is completely burned, and the other portions are in an incompletely burned state. As a result, carbon such as carbon black is emitted together with the smoke from the incompletely burned portion as described above. In addition, dioxins may be generated from incomplete combustion where the combustion temperature is low.

As described above, the incineration of waste in a conventional direct-heating incinerator has caused problems such as air pollution due to exhaust gas, odor, and adverse effects on human bodies. Also, when you incinerate waste such as plastic,
Since high-temperature combustion is required, there is a problem that the incinerator is damaged and its life is shortened.

In particular, if the aggregate of the processed material is in a lump inside the incinerator, the burning temperature of the surface of the lump rises during incineration and complete combustion takes place. It is in an incomplete combustion state at the combustion temperature. For this reason,
Exhaust gas containing a large amount of dioxins was generated from the part in incomplete combustion.

Another problem is that immediately after the start of operation of the incinerator, the temperature inside the furnace has not risen sufficiently, so that a state of incomplete combustion having a low combustion temperature is likely to occur. Immediately before the operation is stopped, there is a problem that a high combustion temperature cannot be secured because the remaining amount of the processed material is small, and an incomplete combustion state easily occurs.
For the same reason, when operating while continuously supplying the processed material to the furnace, the furnace temperature may fluctuate depending on the amount of the processed material, and it may be difficult to secure and maintain a high combustion temperature. . In addition, depending on the type of the processed material, it is sometimes difficult to perform complete combustion while securing and maintaining a high combustion temperature.

[0011]

SUMMARY OF THE INVENTION An object of the present invention is to provide an incinerator capable of burning a substance to be burned with almost no emission of smoke. Another object of the present invention is to
It is an object of the present invention to provide an incinerator capable of keeping the concentration of harmful exhaust gas low. It is another object of the present invention to provide an incinerator that emits almost no smoke by burning the material to be burned almost completely. It is another object of the present invention to provide an incinerator that can burn a substance to be burned almost completely by enclosing a high temperature portion at the time of incineration at the bottom of the incinerator. It is another object of the present invention to provide an incinerator that can burn a substance to be burned almost completely by causing a convection flowing toward a bottom at a lower central portion of the incinerator. Another object of the present invention is to supply air toward the bottom in the vicinity of the bottom of the incinerator so that the combustion temperature near the bottom is higher than the other parts and the burnable object can be almost completely burned. To provide an incinerator. Another object of the present invention is to burn an object to be burned almost completely at a high combustion temperature as a whole, regardless of the shape, form, volume, etc. of the object to be burned, such as when the object to be burned is accumulated in a lump. It is to provide an incinerator that can be used. It is another object of the present invention to provide an incinerator that can easily and almost completely burn an object to be burned at a high combustion temperature regardless of the amount and type of the object to be burned. Another object of the present invention is to provide an incinerator capable of almost completely burning an object to be burned at a high combustion temperature at any time during operation, whether immediately after starting operation or immediately before stopping operation. Another object of the present invention is to provide an incinerator that can suppress the temperature of exhaust gas generated by combustion of an object to be burned from becoming too high and prevent generation of harmful gas. Another object of the present invention is to provide an incinerator capable of quantitatively transporting the objects to be burned according to the remaining amount of the objects to be burned in the furnace. It is another object of the present invention to provide a cooling and heating device that makes effective use of the exhaust heat of a furnace.

[0012]

The incinerator according to the present invention comprises:
A combustion cylinder closed by the lower bottom portion, in which an object to be burned is burned, a blower for supplying air, a fuel supply means for supplying fuel, and the lower bottom portion in the combustion cylinder. In the vicinity, it is provided so that the combustion gas can sufficiently rise along the inner wall of the combustion cylinder, and the air from the blower or the fuel from the fuel supply means is directed toward the center of the lower bottom of the combustion cylinder. And an ejection means for ejecting the combustion gas to rise along the inner wall of the combustion cylinder and for closing a maximum temperature portion during combustion near the lower bottom portion.

[0013] The jetting means may be configured to burn the object to be burned such that the temperature near the lower bottom is higher than the temperature at the center of the combustion tube and the temperature at the center is higher than the temperature near the upper portion of the combustion tube. So that air from the blower or fuel from the fuel supply means is ejected toward the lower bottom so that air flows toward the lower bottom through the center of the horizontal cross section of the lower part of the combustion cylinder. Alternatively, a fuel flow is generated to raise the combustion gas along the inner wall of the combustion cylinder.

The jetting means is provided above an air passage for flowing air from the blower, a fuel passage for flowing fuel from the fuel supply means, and a central portion of the lower bottom portion. A plurality of air openings connected to a passage for ejecting air from the blower toward the lower bottom, and a plurality of air openings connected to the fuel passage for ejecting fuel from the fuel supply means toward the lower bottom; And an air fuel supply unit comprising an annular double pipe having a plurality of fuel openings on its lower surface.

[0015] The jetting means includes an air passage for flowing air from the blower, a fuel passage for flowing fuel from the fuel supply means, and the combustion passage connected to the air passage or the fuel passage. A plurality of air openings and a plurality of fuel openings each for ejecting air from the blower or fuel from the fuel supply means toward the lower bottom portion, which are attached to the inner wall of the cylinder and have a plurality of fuel openings on the lower surface, respectively. And an air fuel supply unit comprising a protrusion.

[0016] The apparatus may further include a cooling means for cooling the air supplied from the blower. The horizontal cross-sectional shape of the lower bottom is substantially N-sided (N is an integer of 3 or more)
It may be. The air fuel supply unit may be detachable.

[0017] The apparatus may further comprise a temperature detecting means for detecting a temperature near the lower bottom of the combustion cylinder.

[0018] At least a lower portion of the combustion cylinder may be covered with a gap, and a cooling unit for cooling the combustion cylinder with cooling water injected into the gap may be further provided.

[0019] The apparatus further comprises at least one combustion temperature detector provided in the combustion cylinder, and control means for controlling the blower in accordance with a detection result of the combustion temperature detector to control an air supply amount. Alternatively, the fuel cell system may further include control means for controlling the fuel supply means in accordance with the detection result of the combustion temperature detector to control the fuel supply amount.

In a state where the outside air of the combustion cylinder is substantially shut off,
The apparatus may further include a loading unit for continuously and quantitatively loading the object to be burned into the combustion cylinder.

At least a part of the jetting means includes:
The surface is sprayed with aluminum or the surface is coated with ceramic.

The jetting means is cooled by cooling water.

An absorption type air conditioner according to the present invention comprises a water supply unit, and a heating unit using hot water or steam generated by exchanging heat of water supplied by the water supply unit with heat generated by an incinerator. , A refrigerant, an evaporating unit for evaporating the refrigerant, an absorbing liquid heated by the heating unit, and absorbing the water vapor of the refrigerant evaporated by the evaporating unit, and absorbing the water vapor of the refrigerant. A condenser for cooling the water vapor of the refrigerant that has been heated and evaporated by the heating unit to obtain the refrigerant. Here, the water supplied by the water supply unit may be cooling water used in the incinerator.

The method for managing an incinerator according to the present invention is arranged so that the temperature of the combustion gas of the object in the incinerator does not fall below a predetermined temperature during or before or after the burning of the object in the incinerator. The fuel for generating high heat is put into the combustion furnace, and is burned alone or separately from the object to be burned.

[0025] Alternatively, the amount of the burnable substance or the fuel to be put into the incinerator so that the temperature of the exhaust gas from the incinerator caused by combustion of the burnable substance or the fuel in the incinerator does not exceed a predetermined temperature. Control.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An incinerator according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a diagram showing an incinerator according to one embodiment of the present invention. Part of the incinerator is shown in arbitrary cross section. The incinerator 1 mainly includes a combustion chamber 2, an air-fuel supply chamber 6 for supplying air and fuel to the combustion chamber 2, and a combustion object loading chamber for transporting combustion objects to the combustion chamber 2. And a dust collection chamber 4. The air fuel supply chamber section 6 and the combustion chamber section 2 are connected by an air fuel introduction pipe 74 composed of a double pipe for introducing air and fuel, respectively. Further, the combustion chamber section 2 and the dust collection chamber section 4 are connected to a smoke exhaust pipe 72.
Connected by

A control device 12 for controlling the operation of the combustion furnace 1 is provided on the front surface of the air fuel supply chamber 6 placed on the base 10. A blower 14 connected to the outer pipe of the air fuel introduction pipe 74 and a fuel pump 15 connected to the inner pipe of the air fuel introduction pipe 74 are provided in the air fuel supply chamber 6 behind the control device 12. ing. The blower 14 and the fuel pump 15 are controlled by the control device 12 to supply air and fuel to the combustion chamber 2 via the air fuel introduction pipe 74. In this example, the fuel pump 15
Is a city gas. However, it is not limited to this. The fuel may be gaseous or liquid. For example, an oxygen or acetylene gas type may be used.

The combustion chamber section 2 has a lower bottom portion 22 formed on the base 10. The lower bottom part 22 is made of concrete, for example. However, it may be formed of other materials. The upper surface portion of the lower bottom portion 22 has a structure in which the center portion is concave in a hemispherical shape. As a result, the burnable material pieces, liquefied materials, and the like that have fallen from above during the combustion of the burnable material flow into the central portion. Further, the temperature detector 16 is provided near the lower bottom portion 22, in this example, at a position slightly distant from the center of the lower bottom portion 22. The temperature detector 16 is connected to the control device 12. Further, an ignition device 17 is provided near the lower bottom portion 22, in this example, slightly above. The ignition device 17 is also controlled by the control device 12.

An inner combustion cylinder 24 connected to the lower bottom 22 and extending upward is provided. The upper bottom of the tube 24 is the upper plate 25
Is closed by Thus, a substantially closed combustion chamber 30 is formed. In this example, the cross section of the combustion cylinder 24 is circular, but the present invention is not limited to this. A temperature detector 18 is provided above the combustion tube 24, and the temperature detected by the temperature detector 18 is output to the control device 12.

An outer cylinder 32 is provided outside the combustion cylinder 24 so as to be connected to the lower bottom 22 and extend upward. In this way, a gap 42 whose bottom is closed by the lower bottom portion 22 is formed between the inner cylinder 24 and the outer cylinder 32. The outer cylinder 32 is narrowed at an upper portion 34 of the combustion chamber 30. A water vapor discharge cylinder 36 is provided on the narrowed upper part 34.

The water level detector 19 is provided in the gap 42 inside the upper portion 34 of the outer cylinder 32, and detects the water level of the cooling water in the gap 42. The detection result is notified to the control device 12. Cooling water is injected into the gap 42 from the water supply port 21 provided at the upper part of the outer cylinder 32. This water supply 21
Is connected to the water supply via a valve 20. Valve 2
In the case of “0”, the opening and closing thereof are controlled by the control device 12 according to the detection result of the detector 19. Steam generated by heating the cooling water during combustion is discharged from the discharge tube 36. A valve (not shown) is provided between the upper portion 34 of the outer tube 32 and the water vapor discharge tube 36. The valve is opened only when the vapor pressure of the water vapor exceeds a certain value in the gap 42 to release the water vapor to the water vapor discharge tube 36, and is closed when the vapor pressure does not exceed the predetermined value, thereby preventing heat release.

The cooling water injected into the gap 42 from the water supply port 21 is heated during the combustion to become boiling water (hot water or steam). This boiling water is taken out to the outside through a pipe 42a provided below the gap 42, and is used as a heating source that constitutes a part of an absorption type cooling / heating device described later. Since the temperature in the combustion chamber 30 is lower in the lower part than in the upper part, as described later, high-temperature boiling water can be easily taken out from the pipe 42a provided in the lower part of the gap 42.

As shown in FIG. 2, a plurality of air fuel supply passages 44 extending vertically along the outer peripheral surface of the inner cylinder 24 are formed in the gap 42. The air fuel supply path 44 is
The outer pipe is connected to the outer pipe of the air fuel introduction pipe 74, air is supplied from the blower 14, and the inner pipe is connected to the inner pipe of the air fuel introduction pipe 74, and the fuel pump is Fuel is supplied from 15. Each supply passage 44 is provided with a number of holes penetrating through the inner cylinder 24 at a portion in contact with the inner cylinder 24, and ejects air and fuel toward the center of the combustion chamber 30.

Below the combustion chamber 30, in this example, the lower bottom 2
An ejection section 26 for ejecting air and fuel in contact with the second section 2 is formed. The jetting part 26 is shown in FIGS. 4A and 4B and FIG.
It has the structure shown in FIG. FIG. 4A shows the ejection part 26 as seen from above, and FIG. 4B shows the ejection part 26 as seen from the lower bottom part 12 side. FIG. 6A is a vertical cross-sectional view showing a main part of the ejection part 26 in an enlarged manner. As is clear from FIGS. 4A and 4B, the ejection portion 26 includes an annular tube 26a and three connecting tubes 26b connected to the tube 26a. Tube 26a and tube 2
6b, which are connected to the air fuel introduction pipe 74. Each of the tubes 26a and 26b has a double tube structure including an outer tube and an inner tube. The outer tube of the tube 26a and the outer tube of the tube 26b are connected, and the inner tube of the tube 26a and the tube 2
6b is connected to the inner tube. The outer tube of the tube 26b is connected to the outer tube of the air fuel introduction tube 74 to introduce air,
The inner pipe of the pipe 26b is connected to the inner pipe of the air fuel introduction pipe 74, and the fuel is introduced. The number of connecting pipes is not limited to this. It is only necessary that the pipe 26a be effectively held and that air and fuel be sufficiently supplied.

The diameter of the ring of the annular tube 26a is about the radius of the inner cylinder 24. As is clear from FIG. 4A, no hole is provided above the ejection portion 26. On the other hand, FIG.
As shown in (b), a number of air fuel injection ports 26c are provided on the side viewed from the lower bottom 22. this is,
This is to prevent the spout from being blocked when the liquefied burnable material falls from above. However, the more essential reasons will be explained later. As shown in FIG. 6A, the air fuel ejection port 26c is connected to the pipe 26a and the pipe 2
Each of 6b has an outer opening 26e formed obliquely inward on the outer surface of the outer tube, and an inner opening 26f similarly formed on the outer surface of the inner tube. The outer opening 26e and the inner opening 26f are in such a relationship that the opening surface of the inner opening 26f is located on the extension surface of the opening surface of the outer opening 26e.
As a result, air from the outer pipe and fuel from the inner pipe are supplied from the air fuel jet port 26c in a mixed form, and the momentum when the mixture is supplied depends on each of the air and fuel. It is accelerated by energizing and encouraging each other. It will be apparent to those skilled in the art that the ejection section 26 may have other shapes. For example, as shown by a dotted line in FIG. 4, a tube 26d that crosses the center of the annular tube 26a may be added.

Aluminum is sprayed on the surfaces of the annular pipe 26a and the connecting pipe 26b. When the pipes 26a and 26b are made of iron, the oxidation proceeds due to the heat of combustion, resulting in significant damage. Therefore, aluminum is sprayed to prevent oxidation. However, instead of thermal spraying, ceramic layers may be formed on their surface. In addition, not only the ejection part 26 but also the inner wall of the combustion chamber 30 may be sprayed with aluminum or may be coated with a ceramic layer.

At the center of the combustion chamber 30, the inner cylinder 24 and the outer cylinder 3
2 is provided with an inlet 38 for an object to be burned.
However, in this embodiment, during normal operation, the burnable material W is supplied from the burnable material loading chamber 5. The to-be-burned object loading chamber 5 will be described later. A smoke exhaust pipe 72 is provided at an upper portion of the combustion chamber 30, and extends from the inner cylinder 24 through the outer cylinder 32 and the wall of the dust collection chamber 4 into the dust collection chamber 4.
Note that the smoke exhaust pipe 72 is provided with a cooling means for cooling the temperature of the exhaust gas flowing into the dust collection chamber 4 to 200 ° C. or lower as necessary.

The dust collecting chamber 4 is provided on the air fuel supply chamber 6 and is isolated therefrom. The lower portion 52 of the chimney 54 is inserted deep into the dust collector chamber 4. As a result, heavy soot contained in the smoke exhausted from the smoke exhaust pipe 72 sinks into the dust collector chamber 4, and only hot air is exhausted through the chimney 54. In the middle of the chimney 54, a detection port 5 used for detecting components of exhaust gas and the like is provided.
8 are provided. A temperature detector 18a is provided near the detection port 58.
The detection result of “a” is output to the control device 12.

The combustion object carrying-in section 5 includes a hopper 51 for temporarily storing the combustion object W, and a combustion object connected to the hopper 51 for guiding the combustion object W to the combustion chamber 30. The apparatus includes a material supply pipe 52, a screw conveyor 53 provided in the burnable material supply pipe 52, and a motor 54 serving as a drive source of the screw conveyor 53. The screw conveyor 53 has a configuration in which a blade is wound around a shaft in a helical shape. The supply amount of the burnable material W is substantially proportional to the rotation speed of the screw conveyor 53. Therefore, the temperature detectors 16, 18, 18
By controlling the number of revolutions of the screw conveyor 53 in accordance with the remaining amount of the burnable object W in the combustion chamber 30, the combustion state, and the like, which are detected through a, the burnable object W can be supplied quantitatively. it can. The combustion object supply pipe 52 and the combustion chamber 3
The communication part with 0 is in a substantially sealed state, and is in a state of being cut off from outside air.

Next, a method of using the boiling water taken out of the pipe 42a will be described with reference to FIG. FIG. 9 is a schematic diagram for explaining the principle of the absorption type cooling and heating device. A heat transfer tube 101a through which water passes
Is provided. 6.5 mm inside the closed container 101
A vacuum state of about Hg is set. On the heat transfer tube 101a,
When the water drop (coolant) 101b is dropped, the water drop 101b
Evaporates while removing vaporization heat from the water in the heat transfer tube 101a. At this time, the water in the heat transfer tube 101a is cooled. Thereby, the water in the heat transfer tube 101a is supplied to cold water for cooling. On the other hand, when the concentrated aqueous solution of lithium bromide (absorbing liquid) 104 is dropped into the closed container 101, the water vapor 101d generated by evaporation of the water droplet 101b is absorbed by the concentrated aqueous solution of lithium bromide 104. . The aqueous solution of lithium bromide 104a that has been diluted by absorbing the water vapor 101d is sent by a pump 101c and heated in the regeneration chamber 102 to be separated into water vapor 104b and a concentrated aqueous solution of lithium bromide 104. The steam 1
04b is cooled in the condensing chamber 103 to become a refrigerant liquid 103a, and water droplets dropped from the condensing chamber 103 are the refrigerant 101b. The concentrated aqueous lithium bromide solution 1
04 is supplied to the closed container 101 and functions again as the absorbing liquid as described above. From the above,
One cycle is completed. In this embodiment, the regeneration chamber 10
As the heating source in 2, boiling water taken out from the pipe 42a is used. In addition, it goes without saying that the boiling water taken out from the pipe 42a can be independently used as warm water for heating.

Next, control of the incinerator 1 will be described.
As shown in FIG. 3, the control device 12 is provided with an air control switch 12a, an ignition switch 12b, and a fuel control switch 12c on the front surface. Based on the object to be burned, the user can operate the air control switch 12a and the fuel control switch 12c to select the initial air and fuel amounts for the object. Further, the ignition device 17 can be operated by the ignition switch 12b to start combustion.

The water level in the gap 42 detected by the water level detector 19 provided at an appropriate position above the gap 42 is notified to the controller 12. When the water level drops, the control device 12 opens the valve 20 according to the detection result of the detector 19 and supplies water into the gap 42 via the water supply port 21. Thereby, even if the cooling water in the gap 42 decreases during combustion, the combustion chamber 3
0 does not overheat, and the life of the combustion furnace 1 can be extended.

A temperature detector 16 provided near the lower bottom 12 of the combustion chamber, a temperature detector 18 provided above the combustion chamber 30, and a temperature detector provided near the detection port 58 of the chimney 54. The temperature detected by the heater 18a is also controlled by the control device 1.
2 is informed. The controller 12 controls the blower 14 and the fuel pump 15 in accordance with the detected temperature, and adjusts the amount of air and the amount of fuel supplied to the ejection section 26 via the air-fuel introduction pipe 74 so as to be optimal. The number of temperature detectors is not limited to this, and more temperature detectors may be connected.

Next, the operation of the incinerator according to the present invention will be described. The method of combustion differs depending on the object to be burned. In the case of easily combustible materials such as waste plastic, first, newsprint or the like is inserted from the input port 38, and then, the burnable material is carried in from the burnable material loading chamber 5, and is ignited by the ignition switch 12b. In the case of a hardly combustible material such as waste tires or sludge, a fire-resistant material such as newspaper is charged, and then a high calorific auxiliary agent such as waste plastic is charged and ignited by the ignition switch 12b. When the combustion of the auxiliary agent starts, the air control switch 12a for the blower 14 and the fuel control switch 12c for the fuel pump 15 are turned on, and the supply of air and fuel into the combustion chamber 30 starts. Subsequently, a combustible such as a waste tire or sludge is carried in from the combustible carry-in chamber 5. Combustion is performed in this manner.

According to the above-described method of burning newspaper or the like or the auxiliary agent before burning the burnable material, a high combustion temperature is necessarily secured at the start of combustion before the burnable material is fully burned. As a result, the combustion may be partially incomplete at the start of combustion. In addition, even when the remaining amount of the burnable material is small immediately before the stop of the operation, the same phenomenon may occur due to insufficient heat. To avoid these, the following operation may be performed instead of the above operation. That is, regardless of the type of the object to be burned, first, instead of putting in newspaper or the like or a combustion aid, the fuel control switch 12c is turned on, the fuel is supplied into the combustion chamber 30, and the ignition switch 12 is turned on to turn on the fuel. Ignite.
Then, the temperature in the combustion chamber 30 starts to rise due to the combustion of the fuel. At this time, the temperature is detected by the temperature detectors 16 and 18, and when the detected value of both the temperature detectors 16 and 18 exceeds a predetermined temperature (for example, 900 ° C.), the temperature from the combustion object loading chamber 5 is increased. Carrying in of the burnable material W is started. This allows
The object to be burned W burns at a high combustion temperature immediately after the start of the combustion, and the occurrence of an incomplete combustion state is prevented. According to this method, an auxiliary agent or the like is not required. When the burnable material W is carried in, the temperature in the combustion chamber 30 temporarily drops,
Considering that it is not possible to secure a combustion temperature of 900 ° C. or more at the start of the combustion of the burnable material W, the carrying-in start temperature of the burnable material W is not exactly 900 ° C., but may be a temperature obtained by adding a constant value to 900 ° C. Good.

During combustion, the control device 12 controls the water level detector 19
The water level is monitored by the output from. The control device 12
Monitors the outputs of the temperature detectors 16 and 18 and increases the air supply when the actual combustion temperature is lower than the expected combustion temperature from the air supply set based on the object to be burned. Control. In parallel with this operation,
Alternatively, instead of this operation, the fuel pump 15 is controlled so as to increase the fuel supply amount when the actual combustion temperature is lower than the combustion temperature expected from the fuel supply amount set based on the combustion target. Thus, the object to be burned can be completely burned at the optimum temperature. At the same time, the combustion temperature is not unnecessarily raised, so that the combustion chamber 30
Can be reduced, and the generation of smoke and harmful exhaust gas can be suppressed as described later.

Further, the control device 12 includes a temperature detector 18a
When the actual temperature of the exhaust gas is higher than the temperature near the exhaust pipe (chimney 54) of the exhaust gas expected from the air supply amount or the fuel supply amount set based on the burnable material, The blower 14 or the fuel pump 15 is controlled so as to lower the gas temperature by reducing the air supply amount or the fuel supply amount. Thereby, generation of harmful gases (such as dioxins) can be suppressed.

FIG. 5 shows the state of combustion in the combustion chamber at this time. An object to be burned, such as waste plastic, located above the ejection section 26 is liquefied by combustion heat, falls to the lower bottom portion 22, flows to the center portion, and accumulates there. Debris of the burnable material such as waste tires also falls to the lower bottom 22. In this case, the spout 2
Since there is no hole in the upper part of the annular pipe 26a and the communication pipe 26b of No. 6, the hole is not closed by the hole.

At this time, since a large amount of air or fuel is ejected from the ejection portion 26 toward the lower bottom portion 22, the flow of air or fuel flows from above toward the lower bottom portion 22 near the center of the lower bottom portion 22. Occurs. In this manner, air or fuel is sufficient in the lower bottom portion 12, complete combustion is performed, and the combustion temperature increases from 1200 ° C to 1400 ° C.

Due to the flow of air or fuel toward the lower bottom 22, the combustion gas at the lower bottom 22 rises upward along the inner wall of the combustion tube 24. At this time, the rising airflow is cooled by the cooling water in the gap 42. Spout 26
Then, a part of the rising flow is directed to the lower bottom portion 12 again by jetting the air or the fuel. In this way, convection of air (combustion gas) occurs around the ejection section 26. In particular, since the air fuel outlet 26c of the ejection part 26 is formed obliquely inward as described above, the air or fuel is ejected obliquely downward, so that convection of air is more likely to occur. it can. The remaining part of the rising air flow is
The exhaust gas is discharged to the dust collection chamber 4 through the dust collection chamber 2.

In a conventional incinerator, air (combustion gas) rises upward from the center of the combustion chamber. Thus, in the conventional incinerator, convection is not generated, or even if it is generated, the direction of the convection is completely opposite to that of the present invention.

In the above sense, the blower 14, the fuel pump 15, the air fuel introduction pipe 74, and the ejection section 26 function as convection generating means (or member).

In the conventional incinerator, as described above, the temperature is about 600 ° C. in the lower part of the combustion chamber 30, about 800 ° C. in the central part, and about 1000 ° C. in the upper part.
The temperature is from 00 to 1400 ° C., about 1000 ° C. in the center and about 850 ° C. in the upper part. Not only are the temperatures increased overall, but their temperature distributions are reversed. In this sense,
Blower 14, fuel pump 15, air fuel introduction pipe 74
The ejection section 26 functions as combustion temperature reversing means (or member), combustion temperature control means, or combustion temperature increasing means.

This is because a sufficient amount of air or fuel is supplied from the ejection section 26, and the complete combustion section is confined near the lower bottom section 22, which is completely different from the conventional combustion. In this sense, the blower 14, the fuel pump 15, the air fuel introduction pipe 74, and the ejection section 26 function as confining means (or a member) for confining the highest temperature portion during combustion in the vicinity of the lower bottom portion 22. are doing.

Next, the test results of the exhaust gas and the like when the waste plastics are burned by charging 17 kg using the incinerator according to the present invention will be shown. The results of the test were as follows.

Dioxin (PCDDS) 0.07 ng / m ³ N dibenzofuran (PCDFS) 0.28 ng / m ³ N Dioxins total 0.35 ng / m ³ N Dust concentration 9.4 mg / m ³ N monoxide Carbon concentration 20 ppm

Test results of exhaust gas and the like when about 30 kg of synthetic rubber and raw rubber are burned are shown. The results of the test were as follows.

Nitrogen oxide 180 V / Vppm Sulfur oxide 0.36 m ³ N / h Hydrogen chloride 120 mg / m ³ N

As is evident from the above, the standards relating to the concentration of carbon monoxide and dioxin in exhaust gas stipulated in the Waste Management Law and the Air Pollution Control Law issued on August 29, 1997. Has been greatly cleared. In addition, as described above, the provision of the ejection section 26, the control device 12, and the like allow the temperature of the combustion gas in the combustion chamber and the combustion gas flowing into the dust collector specified in the enforcement order. The standards for temperature are also cleared.

The emission of nitrogen oxides and sulfur oxides is also very small. Nitrogen oxides are generated during combustion, and are more likely to be generated as the combustion temperature increases.
However, in order to completely burn the incineration, it is desirable to perform high-temperature combustion. Thus, nitrogen oxides and complete combustion are opposite.

However, in the present invention, the incinerated material is completely burned in the high-temperature portion enclosed near the lower bottom portion 22. Since the temperature is lower in the upper part of the combustion chamber 30, it is considered that the nitrogen oxides generated in the high temperature part are attached to or absorbed by the incineration during combustion, and the emission amount is reduced. In addition, since complete combustion is performed in a high-temperature part, there is little residual sand and soot contained in smoke exhaustion is also reduced.

Next, a modification of the incinerator according to the present invention will be described with reference to FIG. Also, tubes 26a and 26
3b, a third pipe may be provided further inside the inner pipe to form a triple pipe structure, and cooling water may flow through the third pipe. As a result, the tubes 26a and 26b are cooled, deterioration and damage due to high-temperature combustion can be reduced, and an accident caused by excessive heating of the fuel in the inner tube can be prevented.

As shown in FIGS. 7 (a) and 7 (b), the ejection portion is replaced by the combustion tube 2 instead of the tubes 26a and 26b.
4 may be a plurality of protrusions 82 provided on the lower side wall. In the examples shown in these figures, four protrusions are provided. The protrusion 82 is connected to the air fuel introduction pipe 74. The tip of the protrusion 82 reaches a position approximately half the radius of the combustion cylinder 24 in a direction opposite to the radial direction. A large number of air fuel outlets 82c are provided in a portion facing the lower bottom 22 of each protrusion 82, and air or fuel is jetted toward the lower bottom 22. As a result, the same effect as in the above example can be achieved. The upper portion of the protrusion 82 is connected to the gap 42 and is cooled by cooling water. still,
As shown by the arrow in FIG. 7A, the air flow and the fuel flow can be swirled by forming the air fuel injection port 82c in a diagonally left direction in the figure.

Next, another modified example of the ejection section 26 will be described with reference to FIGS. 8 (a) and 8 (b). In this example,
Three connecting pipes 96b extending in the horizontal direction and an annular pipe 96a
Consists of The communication pipe 96b is connected to the air fuel introduction pipe 74. 96 g of asbestos is wound around the tip of each connecting pipe 96b. An opening 92 connected to the air fuel introduction pipe 74 is provided on the inner wall of the combustion tube 24. A receiving portion 94 is formed so as to surround about half of the opening 92, and has a structure for receiving each communication tube 96b.

Similar to the tubes 26a and 26b, the tubes 96a and 96b are provided with a number of air fuel injection ports (not shown). The distal end of each connecting pipe 96b is received by the receiving portion 94, and air or fuel supplied from the blower 14 or the fuel pump 15 is blown out from their outlets through the opening 92. The connection between the opening 92 and the connecting pipe 96b poses a problem. However, since the pipes 96a and 96b are also provided with ejection ports, the connection does not need to be so strict. Therefore, the connection problem can be solved by wrapping 96 g of asbestos around the end of the connecting tube 96 b. Further, by winding the asbestos 96g, the connecting pipe 96b can be prevented from being fixed to the receiving portion 94. In this way, the ejection part can be detached and replaced if necessary.

As described above, it is desirable that the annular pipe of the ejection section has a diameter as large as the radius of the combustion cylinder in this example.
If the diameter of the annular tube is too small, the air flow toward the lower bottom is localized, which is not desirable. Conversely, if the diameter is too large, an upward airflow tends to occur at the center of the combustion furnace. Therefore, when the radius of the combustion cylinder is large, the convection can be efficiently generated by providing a plurality of annular tubes concentrically.

In the above-described embodiment, a screw conveyor type is used as the to-be-burned material loading chamber 5, but it is a matter of course that the to-be-burned material supply means is not limited to this type. For example, by using the advantages of a rotary kiln, the material to be burned is heated (preheated) in a rotary cylinder before it is supplied to the combustion chamber, and the moisture contained in the material to be burned (especially sludge, garbage, etc.) May be dried and evaporated. Further, since the material to be burned can be preheated, it is possible to suppress a temporary decrease in the temperature in the furnace when it is supplied to the combustion chamber.

Further, the air fuel introduction pipe 7 from the blower 14
By applying means for increasing the density of the air (preventing the expansion of the air and increasing the air supply efficiency) with respect to the air supplied below the combustion chamber 30 through the outer tube 4 and the outer tube of the tube 26b, The combustion efficiency can be further increased. That is, a function equivalent to an intercooler generally used for an internal combustion engine is realized. Although a specific configuration is not particularly limited, for example, a heat radiating unit (not shown) may be provided on the back (the air intake side) of the blower 14. The heat dissipating part is provided with a meandering metal pipe within an area of the same size as the back of the blower 14, and the metal pipe is connected in series between the valve 20 and the water supply port 21. Is done. When tap water is guided to the metal pipe of the heat radiating section via the valve 20, the outer surface of the metal pipe is cooled. When the blower 14 is operated, the air (densified air) into which the cool air discharged from the outer surface of the metal tube is taken is supplied toward the air fuel introduction tube 74 side, and Increases combustion efficiency. Further, since the cooled air is supplied to the ejection section 26, damage to the ejection section 26 due to high heat can be suppressed. The tap water after passing through the metal pipe is supplied to the gap 42 from the water supply port 21 and used as cooling water in the same manner as in the above embodiment. In the above example, tap water is introduced as the water introduced into the metal pipe. However, if the cooling water in the heat transfer pipe 101a (see FIG. 9) is used instead, the air cooling effect can be further improved. Can be enhanced.

Next, with reference to FIGS. 10A and 10B, modifications of the combustion cylinder 24 and the outer cylinder 32 shown in FIG. 2 will be described. In this modification, FIG.
0 (a), the combustion cylinder 24H and the outer cylinder 32H
Is formed in a substantially square shape, and the horizontal sectional shape of the combustion chamber 30H is also formed in a substantially square shape. The reason is as follows. That is, when the burnable material W is supplied to the combustion chamber, the burnable material W usually gradually and gradually accumulates from the vicinity of the lower bottom center of the combustion chamber toward the peripheral portion,
The outer contour of the burned object W in the deposited state tends to be close to a circle as shown by a two-dot chain line WM. Therefore, particularly when the amount of the object W to be burned is large, and when the horizontal cross-sectional shape of the combustion chamber is substantially circular, the lower bottom portion of the combustion chamber may be filled with the object W over the entire area. Then, in that case, the entire lower area of the combustion chamber is covered with the burnable material W,
Since the escape of the combustion gas cannot be secured, the internal pressure in the combustion chamber (particularly, the inside of the lump of the material W to be burned) increases, and backfire may occur. Then, with the momentum, for example, there is a possibility that the inlet 38 is unexpectedly opened and a flame is emitted, or the inlet 38 is damaged. Thus, in the present modification, as described above, the planar shape of the lower bottom portion of the combustion chamber 30H is made substantially square, so that the combustion chamber 30H has areas (spaces) S hard to be buried with the burnable material W at its four corners, and the combustion is performed. A gas passage will be secured. For the above reason, it is needless to say that a rectangular shape or another N-sided shape (N is an integer of 3 or more) may be used instead of the square.

At the same time, in this modification, the pressure inside the combustion chamber 30H exceeds a certain level because the combustion gas in the combustion chamber 30H is not smoothly discharged from the flue gas pipe 72 in relation to the above points. In case of a rise, the combustion cylinder 24
An opening (not shown) penetrating the outer cylinder 32H from H and an opening / closing door (not shown) for opening and closing the opening are provided. The opening / closing door is opened only when a pressure equal to or higher than a predetermined value is applied. When the door is opened, a U-shaped vertical section is provided to guide the exhaust gas discharged upward to ensure the safety of workers. Are formed. At the four corners of the inner wall of the combustion cylinder 24H, opposing surfaces 24M opposing the center of the combustion chamber 30H are formed, and air and fuel are supplied from an air supplementary fuel supply pipe 44 provided at the back thereof. It is easy to concentrate the supply toward the center of the combustion chamber 30H.

FIG. 10B is an enlarged view of the air auxiliary fuel supply pipe 44 described above. As shown in the figure, the air-supplying fuel supply pipes 44 provided at positions that are in contact with the outer wall of the combustion cylinder 24H respectively have radiation fins 24F for the purpose of expanding the contact area with the cooling water accommodated in the gap 42. Is provided. The air supplied into the air auxiliary fuel supply pipe 44 is effectively cooled by the cooling water by the radiating fins 24F, and the intercooler effect (the effect of preventing the expansion of the air and increasing the supply efficiency) by the radiating portion is complemented. Is done. Also, cooling of the auxiliary fuel supplied into the air auxiliary fuel supply pipe 44 is similarly promoted, and accidents such as ignition due to heat from the combustion tube 24H can be suppressed. Further, heat radiation of the combustion cylinder 24H is also promoted, and the combustion cylinder 24H is prevented from being overheated and damaged.

According to the present invention disclosed above, the following operations are provided. The jetting unit jets air from the blower or fuel from the fuel supply unit toward a center of the lower bottom. Due to the air flow or the fuel flow, convection is generated at the lower part of the combustion cylinder from the center of the combustion cylinder to the center of the lower bottom part, and then rises along the side wall of the combustion cylinder. Due to this convection, the highest temperature portion during combustion can be confined in the vicinity of the lower bottom portion. In addition, the object to be burned is burned such that the temperature near the lower bottom of the combustion cylinder is higher than the temperature at the center of the combustion cylinder, and the temperature at the center is higher than the temperature near the upper bottom. Becomes possible. Further, the fuel flow burns the object to be burned locally from the surface thereof and gradually burns the inside thereof while the fuel itself burns on the way to the object to be burned. Therefore, even if the object to be burned is a lump or the like, it is possible to almost completely burn the inside of the lump at a high combustion temperature.

The annular pipe has a structure for causing the convection. That is, the annular pipe is provided with an air supply port and a fuel supply port. However, the supply port is not provided on the surface facing the upper bottom part in order to prevent the supply port from being blocked by the burnable material.

If the annular pipe is used as a plurality of overlapping pipes to allow cooling water to flow, deterioration of the annular pipe due to high heat during combustion can be reduced, and an accident due to overheating of fuel in the pipe can be prevented. can do. Further, if aluminum is sprayed on the surface or ceramic is coated on the surface, deterioration due to high heat and corrosion due to, for example, chlorine gas can be reduced.

The air passage and the fuel passage are divided into a first portion and a second portion, the first portion is connected to one or more openings provided in the inner wall of the combustion cylinder, and the second portion is connected to the annular portion. The annular tube can be detachably held by receiving the second portion by a receiving portion provided in the opening portion of the inner wall of the combustion cylinder while being connected to the tube.
Thus, even if the annular pipe is deteriorated or corroded, only the annular pipe can be replaced.

An incinerator controls at least one combustion temperature (combustion gas temperature) detector provided in the combustion cylinder and the dust collection chamber, and controls the blower or the fuel supply means according to the detection result of the combustion temperature detector. Control means for controlling the amount of air supply or the amount of fuel supplied to the blower so that the temperatures of the inside of the combustion cylinder and each part of the dust collection chamber are within a predetermined range. Alternatively, the fuel supply means can be controlled, and in the combustion cylinder, an optimum reverse temperature distribution can be realized for the object to be burned, and dioxins in exhaust gas flowing into the dust collection chamber can be removed. The concentration can be reduced.

The following matters are disclosed in connection with the above disclosure. (Claim 1) A combustion cylinder closed by a lower bottom portion, in which an object to be burned is burned, a blower for supplying air, a fuel supply means for supplying fuel, and In the vicinity of the lower bottom, provided so that the combustion gas can sufficiently rise along the inner wall of the combustion cylinder, the air from the blower or the fuel from the fuel supply means is provided at the center of the lower bottom of the combustion cylinder. And an injecting means for injecting the combustion gas along the inner wall of the combustion cylinder by injecting the combustion gas toward an inner portion of the combustion tube to confine the highest temperature portion during combustion to the vicinity of the lower bottom portion. (Claim 2) A combustion cylinder closed by a lower bottom portion and inside of which a substance to be burned is burned, a blower for supplying air, fuel supply means for supplying fuel, and In the vicinity of the lower bottom, provided so that the combustion gas can sufficiently rise along the inner wall of the combustion cylinder, the temperature near the lower bottom is higher than the temperature of the center of the combustion cylinder, Injecting air from the blower or fuel from the fuel supply unit toward the lower bottom so as to burn the object to be burned so that the temperature is higher than the temperature near the upper part of the combustion cylinder, An incinerator comprising: a jet means for generating an air flow or a fuel flow toward the lower bottom portion through a central portion of a horizontal section at a lower portion of the cylinder to raise combustion gas along an inner wall of the combustion cylinder. (Claim 3) The jetting means is provided above an air passage for flowing air from the blower, a fuel passage for flowing fuel from the fuel supply means, and a central portion of the lower bottom portion, A plurality of air openings connected to an air passage for ejecting air from the blower toward the lower bottom, and a fuel ejected from the fuel supply means toward the lower bottom connected to the fuel passage; Item 1. The incinerator according to Item 1 or 2, further comprising: an air fuel supply section comprising an annular double pipe having a plurality of fuel openings on a lower surface thereof. (Claim 4) The ejection unit is connected to an air passage for flowing air from the blower, a fuel passage for flowing fuel from the fuel supply unit, and the air passage or the fuel passage. Attached to the inner wall of the combustion cylinder,
An air fuel supply comprising a plurality of air openings for ejecting air from the blower or fuel from the fuel supply means toward the lower bottom, and a plurality of protrusions each having a fuel opening on a lower surface. Item 3. The incinerator according to Item 1 or 2, comprising: (Item 5) The incinerator according to any one of Items 1 to 4, further comprising cooling means for cooling air supplied from the blower. (Item 6) The incinerator according to any one of Items 1 to 5, wherein the horizontal cross-sectional shape of the lower bottom is substantially N-sided (N is an integer of 3 or more). (Item 7) The incinerator according to any one of Items 3 to 6, wherein the air fuel supply unit is detachable. (Item 8) The incinerator according to any one of items 1 to 7, further comprising a temperature detecting means for detecting a temperature near the lower bottom portion of the combustion cylinder. (Item 9) The incinerator according to any one of Items 1 to 8, further comprising a cooling unit for covering at least a lower portion of the combustion cylinder with a gap and cooling the combustion cylinder with cooling water injected into the gap. . (Claim 10) It further comprises at least one combustion temperature detector provided in the combustion cylinder, and control means for controlling the blower according to the detection result of the combustion temperature detector to control the air supply amount. Item 10. The incinerator according to any one of Items 1 to 9. (Claim 11) At least one combustion temperature detector provided in the combustion cylinder, and control means for controlling the fuel supply means according to a detection result of the combustion temperature detector to control a fuel supply amount. Item 11. The incinerator according to any one of Items 1 to 10. (Item 12) In any one of Items 1 to 11, further comprising a carrying-in means for carrying the object to be burned into the combustion cylinder continuously and quantitatively in a state of being substantially isolated from the outside air of the combustion cylinder. The incinerator as described. (Claim 13) The incinerator according to any one of clauses 1 to 12, wherein at least a part of the jetting means has a surface sprayed with aluminum. (Item 14) The incinerator according to any one of Items 1 to 13, wherein at least a part of the jetting means has a surface coated with ceramic. (Item 15) The incinerator according to any one of Items 1 to 14, wherein the jetting means is cooled by cooling water. (Claim 16) A water supply unit, a heating unit using hot water or steam generated by exchanging water supplied by the water supply unit with heat generated by the incinerator, a refrigerant, and evaporating the refrigerant. An evaporating unit for heating, and heated by the heating unit,
An absorbing liquid for absorbing the water vapor of the refrigerant evaporated in the evaporating section, and the absorbing liquid absorbing the water vapor of the refrigerant is heated in the heating section to cool the evaporated water vapor of the refrigerant to form the refrigerant Absorption-type air-conditioning apparatus comprising: (Claim 17) Generating high heat in the combustion furnace so that the combustion gas temperature of the combustion object in the incinerator does not fall below a predetermined temperature during or before and after combustion of the combustion object in the incinerator. A method for managing an incinerator in which a fuel for the incinerator is charged and burned alone with or separately from the object to be burned. (Claim 18) The amount of the burnable substance or the fuel to be put into the incinerator is controlled so that the temperature of the exhaust gas from the incinerator caused by combustion of the burnable substance or the fuel in the incinerator does not exceed a predetermined temperature. How to control the incinerator to be controlled.

[0079]

As described above, according to the present invention, convection reverse to that of a conventional incinerator can be generated by blowing air toward the lower bottom of the combustion tube. As a result, it is possible to confine the high temperature part of the combustion near the lower bottom, and it is possible to almost completely burn the object to be burned near the lower bottom. Because of complete combustion, the concentration of dioxins and the like in the exhaust gas can be reduced. In addition, there is very little residual sand, and there is little soot in the smoke. Further, even if the object to be burned is in the form of a lump or the like, it can be completely burned regardless of the amount and type of the object to be burned.
Therefore, there is little problem of securing a garbage disposal site, and the installation place of the incinerator is not selected. Further, even immediately after the start of operation or immediately before the stop, etc., complete combustion can be achieved. Furthermore, although it may be because the high temperature portion is confined near the lower bottom, the amount of harmful substances such as nitrogen oxides and chlorine oxides is very small, and the incinerator is environmentally friendly.

[Brief description of the drawings]

FIG. 1 is a front view showing an incinerator according to one embodiment of the present invention.

FIG. 2 is a plan view showing a cross section of a combustion chamber of the incinerator shown in FIG.

FIG. 3 is a diagram showing a control system of the incinerator shown in FIG.

FIG. 4 is a view showing an ejection part shown in FIG. 1;
(A) is the figure seen from the upper bottom part, (b) is the figure seen from the lower bottom part.

FIG. 5 is a diagram showing a state when a burnable material is burned in the incinerator shown in FIG. 1;

FIG. 6A is an enlarged longitudinal sectional view showing a main part of the ejection section shown in FIG. 1, and FIG. 6B is a view showing a modified example thereof.

FIGS. 7A and 7B show an incinerator having a protruding portion instead of an annular tube as a modified example of the jetting portion shown in FIG. 1, wherein FIG. 7A is a longitudinal sectional view showing a main portion thereof, and FIG. FIG.

8 shows an incinerator in which an annular pipe is configured to be detachable as a modified example of the jetting section shown in FIG. 1, and (a) is a front view showing a characteristic portion of an inner wall of the furnace to which the annular pipe is attached. FIG. 2B is a perspective view showing an annular tube.

FIG. 9 is a schematic diagram for explaining the principle of an absorption-type water heater.

10A is a plan sectional view showing a modification of the combustion chamber of the incinerator, and FIG. 10B is an enlarged view of the air-assisted fuel supply pipe shown in FIG.

FIG. 11 is a view showing a conventional incinerator.

[Explanation of symbols]

 5 Combustibles carry-in room (carry-in means) 12 Controller (control means) 14 Blower 15 Fuel pump (fuel supply means) 16 Temperature detector (Temperature detector) 18 Temperature detector (Temperature detector) 18a Temperature detector (Temperature detecting means) 22 Lower bottom part 24 Combustion cylinder 26 Ejection part (ejection means) 30 Combustion chamber 72 Smoke exhaust pipe 74 Air fuel supply pipe 82 Projection part (ejection means) W

──────────────────────────────────────────────────の Continuation of the front page (51) Int.Cl. ⁷ identification code FI F23N 1/00 101 F23N 1/00 101 F25B 27/02 F25B 27/02 K (58) Investigated field (Int.Cl. ⁷ , DB name) F23G 5/00 ZAB F23G 7/05 ZAB F23G 7/12 ZAB F23H 3/02 F23L 1/00 F23N 1/00 101 F25B 27/02

Claims (18)

(57) [Claims] 1. A combustion cylinder closed by a lower bottom portion in which an object to be burned is burned, a blower for supplying air, fuel supply means for supplying fuel, and Is provided in the vicinity of the lower bottom so that the combustion gas can sufficiently rise along the inner wall of the combustion cylinder, and supplies air from the blower or fuel from the fuel supply means to the lower bottom of the combustion cylinder. An incinerator comprising: an injecting means for ejecting the combustion gas along the inner wall of the combustion cylinder by ejecting the gas toward a central portion and closing a maximum temperature portion during combustion near the lower bottom portion. 2. A combustion cylinder which is closed by a lower bottom and in which an object to be combusted is burned, a blower for supplying air, a fuel supply means for supplying fuel, and Is provided near the lower bottom so that the combustion gas can sufficiently rise along the inner wall of the combustion cylinder, the temperature near the lower bottom is higher than the temperature at the center of the combustion cylinder, Injecting air from the blower or fuel from the fuel supply means toward the lower bottom so as to burn the object to be burned so that the temperature is higher than the temperature near the upper part of the combustion cylinder, An incinerator comprising: a jetting means for generating an air flow or a fuel flow toward the lower bottom portion through a central portion of a horizontal section at a lower portion of the combustion tube to raise combustion gas along an inner wall of the combustion tube. 3. Closed by the lower bottom, in which it is burned
A combustion cylinder in which an object is burned; a blower for supplying air; a fuel supply unit for supplying fuel; and a fuel cylinder of the combustion cylinder in the vicinity of the lower bottom in the combustion cylinder.
Provided so that the combustion gas can rise sufficiently along the inner wall
Air from the blower or the fuel supply means
Toward the center of the lower bottom of the combustion cylinder
The combustion gas is ejected and rises along the inner wall of the combustion tube.
And trap the highest temperature part during combustion near the lower bottom.
Squirting means, A temperature detector for detecting a temperature near the lower bottom of the combustion cylinder;
Means of delivery Incinerator equipped with. 4. Closed by a lower bottom part and burned inside the lower part
A combustion cylinder in which the porcelain is burned; a blower for supplying air; a fuel supply means for supplying fuel; and
Provided so that the combustion gas can rise sufficiently along the inner wall
And the temperature near the lower bottom is the temperature at the center of the combustion cylinder.
Degrees, and the temperature in the center is near the top of the combustion cylinder.
To burn the material to be burned so that
The air from the blower or the fuel supply means
These fuels are squirted toward the lower bottom part,
Sky passing through the center of the lower horizontal section toward the lower bottom
An air flow or a fuel flow is generated to convert the combustion gas into the combustion cylinder.
Squirting means to rise along the inner wall of, A temperature detector for detecting a temperature near the lower bottom of the combustion cylinder;
Means of delivery Incinerator equipped with. 5. The jetting means is provided above an air passage for flowing air from the blower, a fuel passage for flowing fuel from the fuel supply means, and a central portion of the lower bottom portion, A plurality of air openings connected to the air passage for ejecting air from the blower toward the lower bottom, and a fuel ejected from the fuel supply means toward the lower bottom connected to the fuel passage. The incinerator according to any one of claims 1 to 4, further comprising: an air fuel supply unit comprising an annular double pipe having a plurality of fuel openings for lowering each of the plurality of fuel openings on the lower surface. 6. The jetting means is connected to an air passage for flowing air from the blower, a fuel passage for flowing fuel from the fuel supply means, and the air passage or the fuel passage, respectively. A plurality of air openings and a plurality of fuel openings for ejecting air from the blower or fuel from the fuel supply means toward the lower bottom portion, respectively, are attached to the inner wall of the combustion cylinder, and each has a plurality of air openings on the lower surface. 5. An air fuel supply comprising a plurality of protrusions.
Incinerator according to any Re. 7. The incinerator according to any one of claims 1 to 6 further comprising cooling means for cooling the air supplied from the blower. Horizontal cross-sectional shape of wherein said lower base portion, incinerator according to any one of claims 1 to 7 which is substantially N polygon (N is an integer of 3 or more). 9. The incinerator according to claim 5 , wherein the air fuel supply unit is detachable. 10. A cover with a gap of at least a lower portion of the combustion cylinder, according to claim 1乃<br/> Itaru 9 the combustion liner by the cooling water injected into the gap, further comprising a cooling unit for cooling An incinerator according to any of the above. 11. At least one of the combustion cylinders
The incinerator according to any one of claims 1 to 10 , further comprising: two combustion temperature detectors; and control means for controlling the blower according to a detection result of the combustion temperature detector to control an air supply amount. . 12. At least one of said combustion cylinders
One of the combustion temperature detector, according to any one of claims 1 to 1 1 wherein comprising by controlling the fuel supply means according to the detection result of the combustion temperature detector further and control means for controlling the fuel supply amount Incinerator. Wherein said state where the ambient air is substantially blocked in the combustion cylinder, said further comprising carrying means for carrying the combustion cylinder to be combustion product continuously and quantitatively claims 1 to 1 2
The incinerator according to any one of the above. 14. The apparatus according to claim 1, wherein at least a part of said jetting means has a surface sprayed with aluminum.
To 1 3 incinerator according to any one of. 15. The method of claim 14, wherein at least a portion of the ejection means, incinerator according to any one of claims 1 to 1 4 ceramic on its surface is coated. 16. The jetting means, incinerator according to any one of claims 1 to 1 5 is cooled by cooling water. 17. The combustion gas temperature of the object in the incinerator during or before or after the combustion of the object in the incinerator according to any one of claims 1 to 16. A method for managing an incinerator, in which a fuel for generating high heat is charged into the combustion furnace so as not to fall below a predetermined temperature, and the fuel is burned alone with or separately from the object to be burned. 18. The temperature of the exhaust gas from the incinerator caused by the burning of the burnable material or fuel in the incinerator according to any one of claims 1 to 16 does not exceed a predetermined temperature. And a method for managing an incinerator for controlling an amount of the burnable substance or fuel to be put into the combustion furnace.