JPH1163440A - Waste incinerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To completely combust a variety of waste by incinerating it at a high temperature of 1000 deg.C-1300 deg.C. SOLUTION: A diffuser 14 is arranged behind the primary combustion chamber 4 within an incinerator. Many fins 16, 16,... are projected at the peripheral flank of the diffuser 14, and also diffusion holes 17, 17,... are opened among the fins 16, 16,... that the pressurized air may be jetted and supplied to a variety of garbage 3 charged in the primary combustion chamber 4. Moreover, pressurized air is sent and supplied to the diffuser 14 from the blower 11 installed outside the incinerator 1, and the pressurized air being heat-exchanged at a high temperature with the diffuser 14 having the said fins 16, 16... heated at a high temperature within the primary combustion chamber 4 is jetted and supplied to a variety of waste 3 for complete combustion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refuse incinerator and, more particularly, to a refuse incinerator in which the combustion temperature in the incinerator is increased to improve the combustion efficiency.

[0002]

2. Description of the Related Art In a conventional refuse incinerator of this kind, refuse introduced from a refuse input port is deposited on a roaster provided in a combustion chamber, and air is supplied from a lower surface of the roaster. The garbage on the roaster is burned.

[0003]

The above-mentioned general refuse incinerator ignites the refuse accumulated on the roaster in the combustion chamber, and supplies air from the lower surface of the roaster to incinerate. , The upper limit temperature of the combustion chamber is almost 600
It is below ° C. In such a case, some of the refuse to be incinerated may generate incomplete combustion gas, and the incomplete combustion gas contains pollutants such as dioxin and odor without being decomposed.

Therefore, the temperature in the combustion chamber of the incinerator is set to about 10
The refuse introduced into the combustion chamber is completely burned while maintaining the temperature at a high temperature of 00 ° C. to 1300 ° C. to prevent the generation of pollutants such as the dioxins, and release harmful gases into the atmosphere as much as possible. A technical problem to be solved arises in order to prevent the problem from being solved, and an object of the present invention is to solve the problem.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been proposed to achieve the above-mentioned object, and has a dust inlet in the front of a furnace body, and dust introduced from the dust inlet. In the incinerator, which is configured to be burned in the primary combustion chamber and the combustion gas is discharged into the atmosphere from the chimney, an air diffusion pipe is erected at the rear of the primary combustion chamber, and A large number of fins made of super heat-resistant steel are disposed in the trachea, and a diffuser hole is opened between the fins toward the primary combustion chamber side, and is located outside the furnace from the bottom surface of the diffuser tube. A refuse incinerator configured to supply pressurized air from an arranged blower and to inject the pressurized air into the combustion gas flow from the air diffuser, and a ceiling of the primary combustion chamber. 2. A fuel oil supply nozzle is provided above the air diffuser.
It provides a garbage incinerator as described.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. In the figure, reference numeral 1 denotes an incinerator, and reference numeral 2 denotes a garbage inlet provided at the center of the front of the incinerator 1. The garbage 3 introduced into the incinerator 1 from the garbage inlet 2 is formed on the front side of the incinerator 1.
It is configured to be charged and deposited on the floor in the next combustion chamber 4. Subsequent to the primary combustion chamber 4, a partition wall 5 having a lower surface opening
A secondary combustion chamber 6 is provided via a partition, and a tertiary combustion chamber 8 which also serves as a dust collection chamber is provided via a partition 7 having an upper surface opening. Primary combustion chamber 4, secondary combustion chamber 6 and 3
Since the secondary combustion chamber 8 is constructed using an ultra-high heat refractory material used in a blast furnace or the like, each inner wall surface constituting each of the combustion chambers withstands a high temperature of about 1000 ° C. to 1300 ° C. , And extremely excellent in fire resistance.

A chimney 9 is provided upright at the upper part of the incinerator 1 and immediately above the secondary combustion chamber 6 with its lower surface closed. A chimney branch pipe 10 communicating with the chimney 9 is provided at the top, and pressurized air of a blower 11 attached to the outside of the incinerator 1 is supplied in the middle of the chimney branch pipe 10 toward the chimney 9 side. Air supply pipe 12 for supplying the compressed air into the chimney division pipe 10 through the pressure air supply pipe 12 so that the lower part of the chimney division pipe 10 is in a negative pressure state. Is configured. Further, the tertiary combustion chamber 8 also serves as a dust collection chamber. Therefore, a dust ash outlet 13 is provided at a lower portion of the tertiary combustion chamber 8 and is opened only when dust is taken out.

On the other hand, the combustion gas or dust ash burned in the secondary combustion chamber 6 is conducted and radiated by the high-temperature wall surface of the tertiary combustion chamber 8 to be automatically and completely burned. Is sucked into the chimney 9 by the negative pressure and is efficiently released into the atmosphere.

On the other hand, an air diffuser 14 is provided upright on the floor at the rear portion of the primary combustion chamber 4, and accordingly, the air diffuser 14 is provided.
Is to be erected in the combustion gas flow, and the diffuser tube 14 also has excellent heat resistance, withstands high temperatures in the incinerator 1, and has excellent fire resistance. An air supply pipe 15 for supplying pressurized air from the blower 11 is connected to the bottom surface of the blower 11, and a plurality of fins 16, 16... ing. Thus, the fins 16 are made of super heat-resistant steel, can withstand the temperature even when the temperature in the furnace rises from 1000 ° C. to 1300 ° C., and when the inside surface of the incinerator 1 is heated to red, the fins 16 are similarly heated. The fins 16 are also heated to bright red, and are configured to be able to maintain the heated state. The fins 16 are sequentially formed with a large diameter from the upper stage to the lower stage, and diffuser holes 17, 17 are formed between the fins 16, 16,. A large number of perforations are formed in the front side surface of the air diffuser 14 so that compressed air from the blower 11 can be jetted toward the refuse 3 introduced into the primary combustion chamber 4. A part of the air diffuser 14 is injected so as to be injected toward the secondary combustion chamber.
The back side of is also perforated.

A pump 18 for feeding fuel oil is provided on the outer surface of the incinerator 1, and the fuel oil sent from the pump 18 is supplied to the ceiling of the incinerator 1 via a fuel oil feed pipe 19. Are formed to be dripped from the nozzle 20 projecting inward to the fins 16, 16,. Since the fins 16 are formed in a large diameter sequentially from the upper stage to the lower stage, the dropped fuel oil comes into contact with any one of the fins 16 and scatters, and is immediately vaporized. The refuse is burned at a high temperature by burning at a high temperature.

An air introduction window 21 is provided at a lower portion of the secondary combustion chamber 6, and the air introduction window 21
When air is adjustably sent into the secondary combustion chamber 6 and the incomplete combustion gas in the combustion gas in the primary combustion chamber 4 is burned again in the secondary combustion chamber 6, the dispersion Combustion efficiency is improved in combination with the injection of high-pressure air from the trachea 14.

Reference numeral 22 in the figure denotes an ash outlet. Since the embodiment of the present invention is based on the configuration as described above, the refuse 3 is put into the primary combustion chamber 4 of the incinerator 1, and when the refuse 3 is incinerated, first, a fire such as a cardboard is used. The fuel is ignited and injected into the primary combustion chamber 4. At that time, the fins 16, 16,... Provided on the air diffuser 14 are heated by the heat of combustion of the cardboard. Then, if the fuel oil is dropped from the nozzle 20 onto the fins 16, 16,..., The fuel oil is immediately scattered and vaporized and burnt.
The fins 16 are further heated while igniting the garbage 3 and burning the garbage 3. On the other hand, since the pressurized air is sent from the blower 11, the pressurized air passes through the heated diffuser pipe 14 and is injected from the diffuser holes 17, 17. Further, since the compressed air is injected while being in contact with the fins 16, 16, the compressed air is immediately heated to a high temperature. As described above, since the refuse 3 is burned while injecting the high-pressure air into the refuse 3, the refuse 3 can be burned at a high temperature of about 1000 ° C. to 1300 ° C., Accordingly, in the primary combustion chamber 4, the refuse 3 is almost completely burned, and at the same time, pollutants such as dioxin or odor are decomposed, and the combustion gas is discharged as shown in FIG.
As shown by the arrow in FIG. Here, if the incomplete combustion gas component is contained in the combustion gas,
As described above, the inner wall surface of the secondary combustion chamber 6 is also heated to red and maintains the high temperature, so that the incomplete combustion gas flowing into the secondary combustion chamber 6 is discharged into the secondary combustion chamber 6. Is almost completely burned. The perforation holes 17, 17,... Are also opened behind the perforation tube 14, so that the perforation holes 1
Since high-temperature pressurized air is supplied into the secondary combustion chamber 6 from 7, 17,..., The complete combustion in the secondary combustion chamber 6 is further promoted.

Further, as shown by the arrow in FIG. 1, even if the incomplete combustion gas is contained in the combustion gas in the secondary combustion chamber 6, the secondary combustion also occurs in the tertiary combustion chamber 8. Room 6
Since the fuel is heated to a high temperature, the incomplete combustion gas flowing into the tertiary combustion chamber 8 is completely burned here.
Therefore, as described above, the toxic substances contained in the incomplete combustion gas are completely removed, the ash content is small, and the emission of smoke and odor is almost eliminated, thereby contributing to environmental conservation.

In the present invention, it is also possible to incinerate chemical waste liquid instead of, for example, the waste 3, and to incinerate the chemical waste liquid at a high temperature as described above, in the same manner as in incineration of the waste. The present invention can be variously modified without departing from the spirit of the present invention, such as complete combustion to prevent release of toxic substances, and the present invention naturally extends to the modified ones. is there.

[0015]

According to the present invention, as will be described in detail in the above embodiment, the refuse introduced into the primary combustion chamber has a fin provided at the rear of the primary combustion chamber. In addition, since high-pressure air passing through the diffuser tube heated to a high temperature is injected and supplied, the refuse is burned at a high temperature of 1000C to 1300C.

On the other hand, the fuel oil dropped from the nozzle also hits the high-temperature fins, scatters and evaporates immediately, completely burns, and maintains the combustion chamber at a still higher temperature including the diffuser tube to completely burn the refuse. Subsidize. Therefore, the incomplete combustion gas is almost completely eliminated from the combustion gas, and the toxic substances contained in the incomplete combustion gas are also decomposed and removed by the high temperature.
Of course, even if the incomplete combustion gas remains in the primary combustion chamber, the incomplete combustion gas is completely burned at a high temperature in the secondary combustion chamber or the tertiary combustion chamber. Gas will be released into the atmosphere from the chimney. Thus, the present invention is an invention that has a truly remarkable effect, such as preventing the generation of dioxin and the like, killing pathogenic bacteria, preventing the release of toxic gas that pollutes the environment, and contributing to environmental hygiene.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a side view in which a main part of FIG. 1 is sectioned;

[Description of Signs] 1 Incinerator 2 Garbage inlet 3 Garbage 4 Primary combustion chamber 6 Secondary combustion chamber 11 Blower 12 Pressure air supply pipe 14 Diffusion pipe 15 Air supply pipe 16 Fin 17 Diffusion hole 18 Hump 19 Fuel oil Feeding pipe 20 nozzle

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI F23G 5/44 ZAB F23G 5/44 ZABD

Claims (2)

[Claims] 1. A furnace has a refuse inlet in front of the furnace body, refuse introduced from the refuse inlet is burned in a primary combustion chamber, and combustion gas is released into the atmosphere from a chimney. In the incinerator thus configured, a diffuser tube is provided upright at the rear of the primary combustion chamber, and a number of fins made of super heat-resistant steel are disposed in the diffuser tube. A diffuser hole is opened toward the primary combustion chamber side, and pressurized air is supplied from a blower arranged outside the furnace from the bottom of the diffuser tube,
A refuse incinerator characterized in that the compressed air can be injected into the combustion gas flow from the air diffusion holes. 2. The refuse incinerator according to claim 1, wherein a nozzle for supplying fuel oil is provided at a ceiling of the primary combustion chamber and above the air diffuser.