JP2001208312A - Smoke extinguishing incinerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a smoke extinguishing incinerator which can incinerate refuse, etc. while scarcely generating smoke. SOLUTION: The secondary combustion chamber 2 formed between the primary combustion chamber 1a of this incinerator 1 and a stack chimney 3 is formed in a cylindrical shape, and a first partition wall 6a having a communicative hole 5a and a second partition wall 6b having the same hole 5b are arranged in the chamber 2 so as to demarcate a gas staying chamber 2a between the walls 6a and 6b. To the side wall of the combustion chamber 2, an air blowing-in port 7 is provided for accelerating the secondary combustion of an unburned gas sent from the communicative hole 5a of the first partition wall 6a to the gas staying chamber 2a by prolonging the staying time of the unburned gas in the chamber 2a by swirling the unburned gas.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a smoke incinerator that can incinerate dust and the like without generating any smoke.

[0002]

2. Description of the Related Art In a conventional smoke eliminating incinerator in which a secondary combustion chamber is provided between the top of an incinerator main body and a chimney, in order to assist the combustion of unburned gas sent to the secondary combustion chamber. If air is blown from outside, the temperature inside the secondary combustion chamber will decrease unless a gas burner is installed, making it difficult to burn due to this temperature decrease, and because the residence time in the secondary combustion chamber is short, unburned gas will be completely burned It may be discharged without being performed.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and solves the above-mentioned problem by resolving unburned gas discharged from the top of an incinerator body into a secondary combustion chamber without a gas burner. It is an object of the present invention to provide a smoke eliminating incinerator having a simple structure capable of being completely incinerated and incinerated without generating almost any smoke from the chimney.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. In the present invention, a secondary combustion chamber formed between a primary combustion chamber and a chimney of an incinerator body is provided. A first partition having a communication hole therein and a second partition having a communication hole therein are disposed so that a gas retaining chamber is formed therebetween, and the first partition is provided on a side wall of the secondary combustion chamber. Has provided an air inlet for promoting the secondary combustion of the unburned gas by increasing the residence time in the gas retention chamber by using the unburned gas sent from the communication hole of the first partition wall to the gas retention chamber as a swirling flow. The basic configuration is characterized by. And in such a smoke eliminating incinerator, what made the cylindrical secondary combustion chamber the horizontal type and made the residence time longer was the invention according to claim 2,
In each of the above-mentioned inventions, a dust collector is interposed between the secondary combustion chamber and the chimney so as to more appropriately prevent the emission of dust from the chimney. . Further, in all of the above-mentioned inventions, the air blower for blowing air to the air blowing port blows air to the primary combustion chamber of the incinerator body and blows air to the exhaust pipe inserted upward into the base of the chimney. Claim 4
The invention according to the present invention.

According to such a smoke eliminating incinerator, when unburned gas not burned in the primary combustion chamber of the incinerator main body is sent to the gas retention chamber through the communication hole provided in the first partition, In the gas holding chamber, air is sent which generates a swirling flow of the unburned gas sent to the gas holding chamber through the air blowing port to increase the residence time in the gas holding chamber. Sufficient air is replenished during the time, and sufficient secondary combustion is performed in the gas retention chamber, so that the garbage is accurately incinerated with almost no smoke coming out of the chimney. .

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of the present invention will be described with reference to FIGS. 1 and 2 in which a forced air supply system is used to supply primary combustion air by forcibly blowing air to a primary combustion chamber. The smoke incinerator will be described in detail. 1 is a rectangular incinerator body made of a durable metal plate such as a heat-resistant enamel or an aluminum processed iron plate, a refractory or any other durable material, and 2 is a horizontal type incinerator which is connected to the top of the incinerator body 1 via an elbow. The raised cylindrical secondary combustion chamber 3 is a chimney connected to the secondary combustion chamber 2 via a dust collector 4 such as a cyclone dust collector. The incinerator main body 1 is provided with an inlet which is opened and closed by a door 12 having a viewing window 13 at the front of the primary combustion chamber 1a, and an ash outlet 14 which is opened and closed by a door 15 below the inlet. Is provided. On the other hand, inside the cylindrical secondary combustion chamber 2, a first partition wall 5 a made of a refractory material provided with a plurality of communication holes 6 a and a communication hole 6 b
And a second partition wall 5b made of a refractory material, which is provided with a plurality of refractory materials, is fitted at a predetermined interval therebetween, and is adhered to the inner wall of the secondary combustion chamber 2. A space between the second partition walls 5b is formed as a gas retaining chamber 2a.

[0007] Reference numeral 7 denotes an air blowing port provided on the side wall of the gas retaining chamber 2a of the secondary combustion chamber 2 in a tangential direction thereof.
Is blown from the blower 9 through the blower tube 8 and the air inlet 7, so that the first partition 5a
Causes a swirling flow along the inner periphery of the cylindrical gas retaining chamber 2a in the unburned gas sent into the gas retaining chamber 2a through the communication hole 6a, thereby prolonging the residence time in the gas retaining chamber 2a. In addition, a sufficient amount of secondary combustion air is supplied to the unburned gas to promote secondary combustion. The blower 9 described above includes a blower 9a and a blower tank 9b.
In addition to blowing air to the air inlet 7 through the blowing pipe 8 as described above, the air for primary combustion is blown to the primary combustion chamber 1a of the incinerator main body 1, and the air is directed upward to the base of the chimney 3. The air is blown to the exhaust pipe 10 inserted in the air outlet.

[0008] In the thus constructed apparatus, when refuse is put into the incinerator main body 1 and ignited, first, the refuse is incinerated in the primary combustion chamber 1a, and the refuse generated in the primary combustion chamber 1a. The combustion gas is sent to a cylindrical secondary combustion chamber 2 that is horizontally connected to the top of the incinerator main body 1 via an elbow and is subjected to secondary combustion. Is formed in the gas storage chamber 2a divided by the first partition 5a and the second partition 5b, so that the gas is sent to the secondary combustion chamber 2 and is not burned into the gas storage chamber 2a through the communication hole 6a of the first partition 5a. Gas is sent in. At this time, a side wall of the gas stagnation chamber 2a is provided with an air blowing port 7 directed in the tangential direction, and the air blowing port 7 is provided with a blower 9a and a blow tank 9b via a blower tube 8. The unburned gas sent to the gas retaining chamber 2a from the communication hole 6a of the first partition 5a
The gas retention chamber 2 is supplied from the blower 9 through the air inlet 7.
Due to the air blown into the inside a, a swirling flow is formed along the inner periphery of the cylindrical gas retaining chamber 2a. Therefore, the unburned gas sent from the communication hole 6a of the first partition wall 5a to the gas retaining chamber 2a is As the indoor residence in the gas retaining chamber 2a becomes longer, sufficient air necessary for the secondary combustion is mixed, and the secondary combustion is completely performed here and the dust is collected in the dust collector 4. Therefore, the gas discharged from the chimney to the outside becomes smokeless, and the unburned gas sent from the primary combustion chamber 1a to the secondary combustion chamber 2 is discharged from the chimney 3 with incomplete combustion. There will be no danger of pollution.

In particular, when the cylindrical secondary combustion chamber 2 is of a horizontal type, it is preferable because the residence time in the gas retaining chamber 2a can be sufficiently secured, and a cyclone dust collector is provided between the secondary combustion chamber 2 and the chimney 3. The one with a dust collector 4 such as
Dust in the gas sent to the chimney 3 side through the communication hole 6b of the second partition wall 5b is more preferably collected because it can be accurately collected. Further, the blowing device 9 for blowing air to the air inlet 7 allows the incinerator main body 1 to be cooled. Blowing of the primary combustion air into the primary combustion chamber 1a and the exhaust pipe 1 inserted upward into the base of the chimney 3
If the air is blown to zero, it is possible to perform more accurate destruction and incineration, and it is possible to make the whole compact, which is more preferable. Note that the smoke incinerator shown in the above-described embodiment is a forced air supply type in which the primary combustion air is forcibly supplied, but a natural air supply type in which the primary combustion air is naturally supplied. Of course, it is good.

[0010]

As described above, the smoke eliminating incinerator of the present invention has a secondary combustion chamber having a cylindrical shape and a gas retention chamber formed therein. Since the air blown into the inside from the air inlet provided on the side wall of the next combustion chamber forms a swirling flow in the gas retention chamber, thereby increasing the residence time in the gas retention chamber to promote secondary combustion, Exhaust gas from the chimney to the outside can be made smokeless, and exhibits an excellent effect on pollution prevention. Therefore, the present invention is of great industrial value as a smoke eliminating type incinerator which has solved the conventional problems.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a preferred embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view showing a main part of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Incinerator main body 1a Primary combustion chamber 2 Secondary combustion chamber 2a Gas retention chamber 3 Chimney 4 Dust collector 5a 1st partition 5b 2nd partition 6a Communication hole 6b Communication hole 7 Air inlet 9 Blower

Claims (4)

[Claims] 1. A primary combustion chamber (1a) of an incinerator body (1) and a chimney
(3) and a first partition (5a) having a communication hole (6a) therein and a communication hole (6).
b) and a second partition wall (5b) provided so as to define a gas stagnation chamber (2a) therebetween. The side wall of the secondary combustion chamber (2) has a first partition wall (5a). Air for promoting the secondary combustion of the unburned gas by extending the residence time in the gas retention chamber (2a) by using the unburned gas sent from the communication hole (6a) to the gas retention chamber (2a) as a swirling flow. A smoke eliminating incinerator characterized by having an inlet (7). 2. A smoke incinerator according to claim 1, wherein the cylindrical secondary combustion chamber (2a) is of a horizontal type. 3. A smoke incinerator according to claim 1, wherein a dust collector (4) is interposed between the secondary combustion chamber (2) and the chimney (3). 4. An air blower (9) for blowing air to an air inlet (7).
The air is blown into the primary combustion chamber (1a) of the incinerator body (1) and the exhaust pipe (10) inserted upward into the base of the chimney (3)
4. The smoke incinerator according to claim 1, wherein air is blown to the incinerator. 5.