JPH10292915A - Exhaust gas device for refuse incinerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove dust, such as spark and soot, in exhaust gas by the filter cylinder wire netting and clean exhaust gas discharged through an exhaust gas cylinder to outside air by a method wherein exhaust gas discharged from an incineration cylinder is discharged from the exhaust gas cylinder through two devices of upper and lower devices. SOLUTION: In a refuse incinerator 1, smoke generated through incineration of refuse is raised from an inner cylinder 11 to the upper part of an incineration cylinder 2 together with outside air injected through an air feed cylinder 12 and fed to an exhaust gas cylinder 17 through two buffering parts 15 of a smoke 16 and discharged in the atmosphere. Exhaust gas entering a lower buffering part 15 through an exhaust gas part opening 20 of the incineration cylinder 2 enters a filter cylinder 23 from the lower end of the filter cylinder 23 situated at an internal central part and collided with a disc 25 for blocking. The exhaust smoke flowing through the wire netting of the filter cylinder 23 and flows around and enters an upper buffering part 15 through an exhaust gas port 19. Similarly, exhaust smoke flows around through the wire netting of the filter cylinder 23 and enters the exhaust gas cylinder 17 through the exhaust gas port 19. Similarly, exhaust smoke flows around through the wire netting of the filter cylinder 23 and is discharged through the exhaust gas port 19 to the exhaust gas cylinder 17. This constitution cleans exhaust gas discharged through the exhaust gas cylinder 17 to the outside air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a smoke exhaust device for a refuse incinerator.

[0002]

Generally, in a refuse incinerator, various kinds of refuse are treated. Therefore, depending on the type of refuse, the combustion state varies, and a large amount of black smoke may be generated, or sparks may be blown out of the chimney. There was a risk of fire and environmental pollution. As a countermeasure, a method has been adopted in which a buffer is provided in a part of the chimney so that sparks and soot are collected by the buffer and are not discharged to the outside.

[0003] However, depending on the type of refuse, even if sparks and soot can be collected in the buffer, black smoke cannot be removed.

[0004]

In order to achieve the above object, according to the present invention, large-diameter cylindrical buffer portions are formed at upper and lower portions of a chimney of a refuse incinerator, and a wire mesh made of metal mesh is formed in each buffer portion. The filter tubes are suspended, the lower end openings of the respective filter tubes are connected to the inlets at the bottoms of the buffer portions, respectively, and the upper ends of the respective filter tubes are closed with disks.

[0005]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a refuse incinerator according to the present invention. Waste input port 3 attached to the canopy 5
Is opened and closed freely. An ash extraction port 7 and an ash extraction door 8 are provided at a lower front part of the incinerator 2. At the bottom of the incineration cylinder 2, a scoop-shaped rooster 9 is installed, and a dust collecting portion 10 is formed below the rostr. The inner cylinder 11 is placed on the roast 9 and a gap is formed between the inner cylinder 11 and the incineration cylinder 2. An air supply cylinder 12 is erected perpendicularly through the center of the rostr 9 and a blower 13 is connected to its base end. The upper end of the air supply cylinder 12 is closed without opening. A plurality of blast ports 14 are formed in a large number of stages at regular intervals on the peripheral wall of the air supply cylinder 12. The lowermost blast port 14 is viewed from the dust collecting section 10.

[0006] A chimney 16 is erected on the upper part of the incinerator 2, a cylindrical buffer part 15 having a large diameter is formed on each of the upper part and the lower part, and a chimney 17 having a rain shield is provided on the upper end. The buffer portion 15 is a cylindrical body having a large outer diameter, and a connection port 18 having a smaller outer diameter at the lower portion and a flange formed at the mouth,
At the upper part, a smoke exhaust port 19 having a small outer diameter and a flange formed at the mouth is provided. The connection port 18 of the lower buffer unit 15 is connected to the smoke exhaust port opening 20 at the upper part of the incinerator 2, and the connection port 18 of the upper buffer unit 15 is overlapped and connected to the smoke exhaust port 19. Is connected to a smoke stack 17 to form a chimney 16. At the center of the inside of the buffer unit 15, a wire mesh filter tube 23 is provided at an interval from the inner wall, and is suspended inside the buffer unit 15 by a plurality of suspension tools 24 and attached. The lower end of the filter tube 23 is attached to the inner wall of the buffer unit 15 at an interval without being fixed. As shown in FIG. 3, a disk 25 is horizontally mounted on the upper end of the filter tube 23, a plurality of hanging tools 24 are fixed to the disk 25, and the upper end of the filter tube 23 is closed. As shown in FIG. 2, a soot outlet 21 is opened on the side wall of the buffer unit 15, and a soot outlet lid 22 is provided on the soot outlet 21 that slides upward to open.

[0007] With the above configuration, the garbage inlet lid 6 of the garbage incinerator 1 is opened, garbage to be incinerated is thrown into the incinerator 2, and flammable newspaper or the like is ignited from above and thrown in.
Close the garbage input lid 6 and wait for the fire to intensify.
To drive outside air into the inner cylinder 11 through the air supply cylinder 15 to start incineration of refuse. The smoke generated by the incineration is combined with the outside air spouting from the air supply cylinder 12 and the inner cylinder 11.
From the upper part of the incinerator 2, is sent to the flue gas cylinder 17 through the two buffer parts 15 of the chimney 16, and is discharged to the atmosphere.
The smoke discharged from the smoke exhaust opening 20 of the incinerator 2 into the lower buffer 15 is removed from the lower end of the filter 23 at the center of the incinerator 2 by the filter 20.
Into the upper buffer portion 15 from the smoke outlet 19, and similarly bypasses through the wire mesh of the filter tube 23 and passes through the smoke outlet 19. Discharge to 17.

When a large amount of refuse is input or a large amount of high-calorie refuse such as tires is input, the combustion causes the inside of the incinerator 2 to be overheated, resulting in a shortage of air supply. Incomplete combustion produces large amounts of black smoke.
When this smoke is exhausted through the upper and lower buffers 15,
Most of the dust such as sparks and soot contained in the flue gas is removed by the wire mesh of the lower filter tube 23, and the dust such as soot remaining in the flue gas is almost completely removed by the wire mesh of the upper filter tube 23. Then, the smoke exhausted from the smoke stack 17 is made clean without black smoke. The wire mesh of the upper filter cylinder 23
By making the mesh smaller than the mesh of the wire mesh of the lower filter tube 23, the smoke exhausted from the smoke exhaust tube 17 can be further cleaned.

[0009]

As described above, the smoke exhausted from the incinerator is discharged from the smoke exhauster through the two upper and lower shock absorbers. Can be removed by the filter tube wire mesh, and the smoke exhaust gas discharged from the smoke exhaust tube into the outside air can be cleaned.

[Brief description of the drawings]

FIG. 1 is a sectional view of a refuse incinerator of the present invention.

FIG. 2 is a front view of a buffer unit according to the present invention.

FIG. 3 is an enlarged perspective view of a filter tube of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 refuse incinerator 2 incinerator 3 refuse inlet 4 hinge 5 canopy 6 refuse inlet 7 ash extraction port 8 ash extraction door 9 rostor 10 dust collector 11 inner cylinder 12 air supply cylinder 13 buffer section 14 blast port 15 buffer section 16 Chimney 17 Smoke stack 18 Connection port 19 Smoke stack 20 Smoke stack opening 21 Soot outlet 22 Soot outlet lid 23 Filter cylinder 24 Hanging tool 25 Disk

Claims (1)

[Claims] 1. A large-diameter cylindrical buffer portion is formed at each of the upper and lower portions of a chimney of a refuse incinerator. A wire mesh filter tube is suspended in each buffer portion, and a lower end opening of each filter tube is buffered. A smoke exhaust device for a refuse incinerator, which is connected to the entrance at the bottom of each unit and the upper end of each filter tube is closed with a disk.