JP3183850B2 - Double incinerator - Google Patents

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 an incinerator effectively acting on industrial waste containing harmful substances.

[0002]

2. Description of the Related Art Various refuse incinerators have been developed. There are various types of garbage to be incinerated, and a very large amount of garbage including so-called industrial waste and household waste is processed. On the other hand, in recent years, harmful dioxins and the like have been released from garbage incineration plants, and have developed into serious social problems.

According to the incineration method or apparatus generally used in a garbage incineration plant, black smoke is steam-decomposed. In this steam cracking, black smoke generated by combustion in the furnace appears as white smoke when discharged from the chimney of the incinerator, so it seems safe at first glance.

[0004]

However, in the conventional incineration method by steam decomposition, steam gas discharged from the incineration plant contains harmful dioxins or the like exceeding a standard value, and such harmful chemical substances are incinerated. The reality is that we can't do it. Further, so-called contaminated soil containing hexavalent chromium and the like cannot be used for land reclamation on the bay shore, and there is a problem in a method of treating and disposing of the soil. Further, for example, large-sized garbage such as a scrapped car has a problem that it takes a lot of time to dispose of various materials, and harmful chemical substances are generated when the plastic material is incinerated. .

As described above, although a large number of refuse incinerators are currently operating, no incinerator has been developed that has overall superior performance in terms of safety, efficiency, and cost. .

[0006] In view of such circumstances, an object of the present invention is to provide a double incinerator for completely incinerating harmful substances and for incinerating garbage with extremely high efficiency.

[0007]

SUMMARY OF THE INVENTION A double incinerator according to the present invention is a double incinerator provided with a plurality of incinerators according to the type of waste to be incinerated, wherein each incinerator performs incineration. An incinerator main body having a box shape having an inclined conveying path at the bottom, and a large incineration object being charged as it is at a high place side of the inclined conveying path; and the inclined conveying path in the incinerator main body. It is inclined along and is rotatably supported, has a substantially conical double structure, and has two inlets for the incineration material attached to the small-diameter side end. A rotary incinerator for incinerating combustible materials in the inner furnace and contaminants injected from the other inlet in the outer furnace, and suctioning combustion gas generated in the incinerator body and the rotary incinerator. And then incinerated at high temperature by means of flame irradiation. A hot extinguished furnace to extinguish the harmful substances,
The incinerator main body, the large incinerator is incinerated in a lump while conveying along the inclined conveying path, the rotary incinerator, from a plurality of thermal power inlet provided around the rotary incinerator Taking in the heat generated by the burning of the incinerated material on the inclined conveying path of the incinerator body, incinerating the incinerated material while rotating and moving the incinerated material to the front, and the high-temperature incinerator comprises the incinerator. The combustion gas generated in the furnace body and the rotary incinerator is suctioned from a suction port, and discharged to the outside of the furnace through a gas guide path after high-temperature incineration.

[0008]

[0009]

[0010]

[0011]

According to the present invention, a plurality of incinerators are provided according to the type of waste or garbage to be incinerated, and incineration is performed in each incinerator. In the incinerator main body, for example, large waste such as a scrapped car can be incinerated in a lump, and in a rotary incinerator, contaminated soil containing harmful substances can be incinerated using the thermal power generated by combustion in the incinerator main body. Furthermore, in the high-temperature incinerator, the combustion gas generated in the incinerator main body and the rotary incinerator is sucked, and the high-temperature incinerator is used to extinguish harmful substances by incineration.

By providing a plurality of incinerators or extinguishing furnaces in this way, various kinds of waste or garbage containing harmful substances can be efficiently and completely incinerated. Therefore, there is no danger of harmful substances being released from the incinerator, and thorough prevention of pollution can be ensured.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a double incinerator according to the present invention will be described below with reference to the drawings. FIG.
1 shows the overall schematic configuration of the double incinerator in this embodiment. In this example, a box-shaped incinerator main body 10 having an inclined conveying path 11 at a bottom portion, and a rotary incinerator that is tilted along the inclined conveying path 11 and rotatably supported in the incinerator main body 10 20; a high-temperature incinerator 30 for inhaling combustion gas generated in the incinerator body 10 and the rotary incinerator 20 and extinguishing harmful substances by incineration at a high temperature;
It has. Thus, the incinerator of the present invention has a plurality of incinerators or extinguishers, and these members will be described in detail below.

The bottom of the incinerator body 10 is appropriately inclined by an angle θ as shown in FIG. This inclined transport path 11
, The incineration material is introduced from a high place side (the left side in FIG. 1). In this example, large-sized waste such as a scrapped car is input as it is to be incinerated. The inclined conveyance path 11 has a length of about 10 m, and several vehicles can be mounted at one time along the longitudinal direction (FIG. 1, arrow L).

As shown in FIGS. 2 and 3, the rotary incinerator 20 has a frusto-conical shape, and is disposed so as to be substantially parallel to the inclined conveying path 11 via a rotary support shaft 21. The outer periphery of the rotary incinerator 20 is formed by forming a thick steel plate 22 in a conical shape, and an outer furnace 23 is formed inside the steel plate 22 as shown in FIG. The conical steel plate 22 is provided with steel ribs 24 as shown in FIG.
Is connected to the rotary support shaft 21 through the shaft.

Further, as shown in FIG. 4, a plurality of aggregates 26 for forming the inner furnace 25 are provided further inside the steel plate 22. The aggregates 26 are arranged at predetermined intervals so as to be provided on the peripheral surface of the cone as shown in FIG. 6, and are connected to the rotating shaft 21 together with the steel plate 22. In addition, the rotating shaft 21
Are supported by the incinerator main body 10 via bearings, and are rotationally driven by a drive motor (not shown).

In the rotary incinerator 20, a cover 27 and a cover 27 are provided at the ends of the conical small-diameter portion and the large-diameter portion, respectively.
28 are provided, thereby sealing the rotary incinerator 20. The covers 27 and 28 are fixed to the side wall of the incinerator main body 10. As shown in FIG. 7A, the cover 27 is provided with two charging ports 29a and 29b for charging the incineration material. An incineration material such as contaminated soil is introduced into the outer furnace 23 from one input port 29a.
From b, incineration materials such as shredder dust are introduced into the inner furnace 25.

At the upper part of the cover 28, as shown in FIG. 7 (B), an outlet 2 for sending out the combustion gas generated in the incinerator main body 10 or the rotary incinerator 20 to the high-temperature incinerator 30.
8a are formed.

The rotary incinerator 20 includes the incinerator main body 1.
It is designed to take in the heat generated by combustion at zero.
That is, as shown in FIG. 2 or FIG. 4, in this example, a plurality of thermal power inlets 22 are provided at appropriate places around the conical steel plate 22.
a. As described above, the incinerator body 10 can be incinerated at a high temperature in the rotary incinerator 20 by using the thermal power generated by the combustion. In addition, each thermal power inlet 22a
Is moderately curved so that the incineration material inside does not fall down due to the rotation of the rotary incinerator 20.

As described above, the high-temperature incinerator 30 sucks the combustion gas generated in the incinerator body 10 and the rotary incinerator 20 and further incinerates the high-temperature. This high-temperature incinerator 30 includes an incinerator body 10 and a rotary incinerator 2.
0 is provided with a gas guide path 31 for sucking the combustion gas generated in the entirety of the furnace from its suction port 31a and discharging the gas to the outside of the furnace. The gas guide path 31 is connected to the rotary incinerator 20 as shown in FIG.
Placed on top of Further, as shown in FIG. 8, the pipe member is formed in a substantially U-shape, and by adopting such a shape, the residence time of the gas in the high-temperature quenching furnace 30 is lengthened to completely eliminate harmful substances. I have.

The high-temperature quenching furnace 30 also has a flame irradiation means 32 in the middle of the gas guide path 31. Flame irradiation means 32
Is constituted by a plurality of burners provided in the furnace main body 33 of the gas guide path 31. In this example, as shown in FIG. 9, a heavy oil burner 32a at the center and a plurality of gas burners 32b disposed around the fuel oil burner 32a are included. It burns at a high temperature of about ℃.

At the rear side of the furnace main body 33, there is provided a temperature preserving section 34 for maintaining and preserving the combustion temperature of the furnace main body 33 so as not to escape. This temperature maintenance part 3
4 is filled with, for example, stainless steel scrap (cutting debris), thereby maintaining the combustion efficiency of the furnace main body 33 at a high temperature.

Further, the high-temperature extinguishing furnace 30 is provided with air supply means 35 for feeding air into the gas guide path 31 as shown in FIG. The air supply means 35 supplies air from an external compressor (not shown) or the like via an air supply pipe 35a, preferably near the front of the furnace body 33,
Thereby, the combustion efficiency in the furnace main body 33 can be increased. Further, a temperature measuring means 36 for measuring the combustion temperature of the high-temperature extinguishing furnace 30 is provided, and the temperature of the furnace main body 33 is managed. The temperature measuring means 36 may be a means for detecting the temperature from the color of the burning flame by a TV camera or the like. The heating power of the flame irradiating means 32 can be controlled based on the temperature detected by the temperature measuring means 36 so that the combustion state of the furnace main body 33 is optimized.

In the vicinity of the outlet 31b of the gas guide path 31,
A filter 37 is provided. The filter 37 is made of, for example, stainless steel as shown in FIG. By detecting the deposit on the filter 37, the exhaust gas component of the high-temperature extinguishing furnace 30 can be examined. The filter 37 is detachably attached to the gas guide path 31, and can be replaced as needed when it becomes dirty.

The double incinerator according to the present invention, as described above,
A plurality of incinerators are provided according to the type of waste or garbage to be incinerated, and each incinerator performs incineration. The incinerator main body 10 collectively incinerates large wastes such as, for example, scrapped cars. In this case, the car is put into the incinerator main body 10 without being dismantled, that is, with the engine and tires attached, and is placed on the inclined conveyance path 11.

An automobile put into the incinerator main body 10 in the incinerator main body 10 includes a large number of parts or accessories and the like.
The amount of garbage is about percent. ADVANTAGE OF THE INVENTION According to this invention, since a car is incinerated as it is without dismantling, the trouble of dismantling can be saved and the efficiency can be greatly improved. Further, the combustion power of the combustion can be effectively used for incineration in the rotary incinerator 20. It should be noted that harmful chemical substances and the like can be generated by incineration of automobiles.

In the rotary incinerator 20, two inlets 29
The incinerated material such as contaminated soil and the incinerated material such as shredder dust are supplied from a and 29b. As described above, the rotary incinerator 20 is inclined forward and downward, and performs incineration while rotating, so that the incineration material inside naturally moves to the front of the rotary incinerator 20 as incineration proceeds. To go. During this time, the thermal power of the incinerator main body 10 is taken in from the thermal power inlet 22a, and harmfulness can be removed by completely incinerating contaminated soil and the like.

Further, in the high-temperature incinerator 30, the combustion gas generated in the incinerator main body 10 and the rotary incinerator 20 is sucked from the suction port 31 a and guided to the furnace main body 33. The combustion gas generated in the incinerator body 10 and the rotary incinerator 20 contains black smoke containing harmful chemicals, and this black smoke harmful substance is incinerated at high temperature by the thermal power of the flame irradiation means 32 and completely disappears. . Therefore, the outlet 3 of the gas guide path 31
The gas discharged from 1b to the chimney is free of harmful chemical substances such as dioxin.

[0030]

As described above, according to the present invention, by providing a plurality of incinerators or extinguishing furnaces in this kind of garbage incinerator, various kinds of waste or garbage containing harmful substances can be efficiently removed. Completely incinerate. As a result, there is no danger of harmful substances being released from the incinerator, and thorough prevention of pollution can be ensured. In this case, there is an advantage that the incineration heat can be efficiently used among a plurality of incinerators or extinguishers, incineration can be performed efficiently, and cost performance is substantially improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing an overall schematic configuration in an embodiment of a double incinerator according to the present invention.

FIG. 2 is a perspective view around a rotary incinerator according to the double incinerator according to the present invention.

FIG. 3 is a plan view around a rotary incinerator according to the double incinerator according to the present invention.

FIG. 4 is a perspective view of a main part of a rotary incinerator according to the double incinerator according to the present invention.

FIG. 5 is a perspective view showing an outer peripheral portion of a rotary incinerator according to the double incinerator according to the present invention.

FIG. 6 is a perspective view showing the inside of a rotary incinerator according to the double incinerator according to the present invention.

FIG. 7 is a side view showing an example of an end configuration of a rotary incinerator according to the double incinerator according to the present invention.

FIG. 8 is a plan view around a high-temperature incinerator according to the double incinerator according to the present invention.

FIG. 9 is a plan view of a main part of a high-temperature incinerator according to the double incinerator according to the present invention.

FIG. 10 is a perspective view of a filter according to the double incinerator according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Incinerator main body 11 Conveyance path 20 Rotary incinerator 21 Rotating shaft 22 Steel plate 23 Outer furnace 24 Steel rib 25 Inner furnace 26 Aggregate 27, 28 Cover 29a, 29b Injectable material inlet 30 High-temperature extinction furnace 31 Gas guide path 32 Flame irradiation means 33 Furnace main body 34 Temperature maintenance section 35 Air supply means 36 Temperature measurement means 37 Filter

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-8-75129 (JP, A) JP-A-7-180820 (JP, A) JP-A-5-264022 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) F23G 5/22 ZAB F23G 5/16 ZAB F23G 7/00 ZAB

Claims (1)

(57) [Claims] 1. A multiple incinerator comprising a plurality of incinerators according to the type of waste to be incinerated, wherein each incinerator performs incineration, and has a box shape having an inclined conveyance path at a bottom. An incinerator main body in which a large incineration object is charged as it is on the high altitude side of the inclined conveying path, and inclining along the inclined conveying path in the incinerator main body,
It is rotatably supported, has a substantially conical double structure, and has two inlets for the incinerated material at its small-diameter end. Then, a rotary incinerator for incineration of the contaminants input from the other input port in the outer furnace thereof, and the combustion gas generated in the incinerator body and the rotary incinerator is sucked, and further by flame irradiation means. A high-temperature incinerator for extinguishing harmful substances by incineration at a high temperature, wherein the incinerator main body incinerates the large incinerated material at a time while being conveyed along the inclined conveyance path, and the rotary incineration. The furnace takes in the heat generated by the burning of the incinerated material on the inclined conveying path of the incinerator main body from a plurality of thermal power inlets provided around the furnace, and rotates the incinerated material inside to the front.・ Incineration while moving Wherein the high-temperature incinerator absorbs combustion gas generated in the incinerator main body and the rotary incinerator from a suction port, and discharges the combustion gas to the outside of the furnace through a gas guide path after high-temperature incineration. Furnace.