JP2611930B2 - Complete combustion promotion device and incinerator equipped with the device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to waste materials and waste materials such as wood, plastic, vinyl, styrofoam, and rubber, and various materials, particularly dust and waste materials that are expected to generate a large amount of smoke upon combustion. Alternatively, the present invention relates to a complete combustion promoting device useful for completely burning materials and an incinerator provided with the device.

[0002]

2. Description of the Related Art Generally, an example of an incinerator for garbage is as follows.
The furnace is equipped with a roster for placing garbage, etc., and air is taken into the furnace from the lower part of the roster to burn the garbage and the like mounted on the roster, and the smoke is released to the atmosphere from the smoke stack on the upper side. Is used.

[0003] In this incinerator, incomplete combustion is liable to occur since only the refuse is burned by relying only on the air taken into the furnace from the lower part of the roaster. For this reason, a large amount of smoke is generated and released into the atmosphere, which is not preferable for environmental health.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a complete combustion promoting device for completely burning even garbage, waste materials or various materials to prevent the generation of smoke, and an incinerator provided with the device. Aim.

[0005]

According to a first aspect of the present invention, there is provided a complete combustion promoting device for mounting an object to be burned on an upper side of a roaster and taking in air from a lower side of the roaster, thereby reducing the amount of air to be burned. An inner cylinder, which is provided at a lower side with a combustion chamber for burning objects in the chamber, and rises above the upper exhaust port of the combustion chamber so as to be capable of being exhausted; A cylinder, and an air circulation chamber formed from a gap between the inner cylinder and the outer cylinder, and further provided with an air supply source connected to the outer cylinder in communication with the air circulation chamber, A plurality of air inlets are provided on the peripheral side wall of the inner cylinder to allow air sent from the source to flow into the inner cylinder from the air circulation chamber, and the air fed into the inner cylinder is provided by the inner cylinder. Of the material to be burned in the combustion chamber And it is configured by disposing the upper side of the combustion chamber as an air flow mechanism to attract act.

A complete combustion promoting device according to a second aspect of the present invention is provided with a plurality of air inflow pipes projecting from the peripheral side wall of the inner cylinder into the cylinder as air inlets.

In the complete combustion promoting device according to a third aspect of the present invention, the air inflow pipes are arranged substantially spirally at predetermined intervals along the inner surface of the peripheral side wall.

In the complete combustion promoting device according to a fourth aspect of the present invention, the air inflow pipe is arranged to be inclined in one direction toward the circumference of the inner cylinder.

According to a fifth aspect of the present invention, there is provided a complete combustion promoting device, wherein the air supply source has a branch pipe connected to the combustion chamber at a lower side of the roaster, and controls air flowing into the combustion chamber. An air adjusting valve is provided in the branch pipe.

In a complete combustion promoting device according to a sixth aspect of the present invention, the air supply source is provided with a timer capable of stopping the supply of air after an arbitrary set time has elapsed.

An incinerator according to a seventh aspect of the present invention is provided with the complete combustion promoting device according to any one of the first to sixth aspects.

[0012]

In the complete combustion promoting device according to the first aspect of the present invention, the air sent from the air supply source along with the burning of the object to be burned is circulated in the air circulation chamber, and the air flow scattered on a plurality of peripheral side walls is provided. When the air is sent into the inner cylinder from the inlet, the air is warmed by the heat of combustion of the material to be burned in the combustion chamber, and flows upward in the inner cylinder together with the indoor air, thereby causing the flame of the material to be burned in the combustion chamber. Acts to attract upward. For this reason, the flame of the burning object can be activated and the air taken in from the lower part of the roster can be increased, so that the burning object can be completely burned and the generation of smoke can be suppressed.

In the complete combustion promoting device according to the second aspect of the present invention, the air inlet is formed by a plurality of air inflow pipes projecting from the peripheral side wall of the inner cylinder into the cylinder, thereby allowing air to flow inside the inner cylinder. It can be reliably fed into the furnace, and is preferably applied to a large furnace for incineration of large dust, waste materials or various materials.

In the complete combustion promoting device according to a third aspect of the present invention, the air inflow pipes are arranged substantially spirally at predetermined intervals along the inner surface of the peripheral side wall, thereby inducing the flame of the object to be burned. The air flow can be effectively generated upward in the inner cylinder, and the air flow can smoothly flow upward in the inner cylinder.

In the complete combustion promoting device according to a fourth aspect of the present invention, the air inflow pipes are inclined in one direction toward the circumference of the inner cylinder, so that the air flows into the inner cylinder from the air inflow pipe. The air becomes a rotating flow, and the air flow can be generated more effectively upward in the inner cylinder.

According to a fifth aspect of the present invention, the air supply source has a branch pipe connected to the combustion chamber on the lower side of the roster, and controls the air flowing into the combustion chamber. Since the air adjusting valve is provided inside the branch pipe, an appropriate amount of air can be secured by forcibly sending air from the air supply source to the lower side of the roaster.

In the complete combustion promoting device according to claim 6 of the present invention, the air supply source is provided with a timer capable of stopping the supply of air after an elapse of an arbitrary set time, so that the air supplied from the air supply source is burned. Since the material can be stopped at the time of complete combustion, unnecessary air supply can be prevented.

In the incinerator according to claim 7 of the present invention, by providing the above-described complete combustion promoting device on the upper side, the functionality as an incinerator for incinerating dust, waste materials, etc. can be extremely enhanced.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the accompanying drawings, FIGS. 1 and 2 show an incinerator for incinerating burnable materials such as dust and waste materials according to an embodiment of the present invention. 1 is configured by providing the complete combustion promoting device 2 according to the present invention on the upper side. FIG. 1 shows an incinerator 1 including a complete combustion promoting device 2 in a side cross section, and FIG. 2 shows the incinerator in a front view.

The incinerator 1 has a combustion chamber 10 made of a refractory material, and a rostelle 11 is horizontally arranged near the lower part of the combustion chamber 10. An ash scraping port 12 is provided on the lower side of the rostral 11 with a door 13 so as to be freely opened and closed. As shown in FIG. 2, the door 13 is provided with a plurality of air intake holes 13a which are substantially concentric with each other and are spaced apart from each other.

On the outside of the door 13, a disk-shaped rotating plate 1 is provided.
4 (partially omitted by a dashed line) is rotatably supported by a shaft. The rotating plate 14 is provided with a plurality of openings 14a on the plate surface that are aligned with the air intake holes 13a. The rotating plate 14 opens the air intake hole 13 a by aligning the opening 14 a with the air intake hole 13 a of the door 13, while displacing the opening 14 a with the air intake hole 13 a of the door 13 to open the door 13. The air intake hole 13a is attached so that it can be closed.

The combustion chamber 10 has an air intake side at the lower side of the chamber from the rostrum 11 and has a main combustion chamber at the upper side of the chamber to incinerate the burnable material. An outlet 15 for scraping out combustion residues is provided on the chamber side of the combustion chamber 10 so as to be openable and closable by a lid 16 in accordance with the position of the rostral 11. Further, on the upper side, an inlet 17 for an object to be burned for dropping the object to be burned, such as dust and waste material, onto the roast 11 is provided to be openable and closable with a lid 18. The lid 18 is provided with a lever 18a that can open the slot 17 by rotating in the direction of arrow A in FIG. In addition to this, an upper exhaust port 19 that exhausts the interior of the combustion chamber 10 and that is continuous with an inner cylinder of a complete combustion promoting device described later is provided on the upper side of the combustion chamber 10.

The complete combustion promoting device 2 arranged on the upper side of the incinerator 1 has an inner cylinder 20 which is connected to an upper exhaust port 19 of the combustion chamber 10 and rises up so as to be able to exhaust upward.
It comprises an outer cylinder 21 surrounding the outer side of the cylinder at an interval from the peripheral side wall of the inner cylinder 20, and an air circulation chamber 22 formed from the interval between the inner cylinder 20 and the outer cylinder 21. Also,
The air supply source 3 is communicated with the air circulation chamber 22 to
1 and a plurality of air inlets 23 through which air sent from the air supply source 3 flows into the inner cylinder 20 from the air circulation chamber 22 is provided on the peripheral side wall of the inner cylinder 20. It consists of.

The air supply source 3 includes a blower and the like,
It is connected to the side of the outer cylinder 21 via the air supply pipe 30. The air supply pipe 30 may be provided with an air adjustment valve 31 for controlling the flow rate of the air supplied from the air supply source 3.
Further, in order to insulate the air supply source 3 from the complete combustion promoting device 2, a heat insulating plate 32 may be set up and installed on the middle side of the air supply pipe 30. In the complete combustion promoting device 2 described above, the upper open end 20a of the inner cylinder 20
And an exhaust pipe 4 that rises upward in a continuous manner.

In the incinerator 1 having the complete combustion promoting device 2 configured as described above, the burnable material such as dust and waste material is dropped from the inlet 17 of the burnable material onto the roaster 11 in the room to thereby burn the burnable material. To ignite. Along with this, the air is supplied from the air supply source 3 to the air circulation chamber 22 through the air supply pipe 30 by operating the blower and the like of the air supply source 3. In the air circulation chamber 22, air sent from an air supply source is circulated in the room, and is sent into the inner cylinder 20 through air inlets 23 scattered on a plurality of peripheral side walls.

The air is heated by the heat of combustion of the material flowing from the upper exhaust port 19 of the combustion chamber 10 because the material has already been ignited. As the air is heated by the combustion heat, the air flows upward in the inner cylinder 20 to attract the flame of the combustion target in the combustion chamber 10 upward. Therefore, the flame of the burning object can be activated, and the amount of air taken in from the lower side of the roaster 11 can be increased, so that the burning object can be completely burned and the generation of smoke can be suppressed. In addition, since the air circulation chamber 22 is air-cooled by forced air supply, the combustion chamber 10 as well as the complete combustion promotion device 2 can be prevented from being excessively heated.

Each of the air inlets 23 of the inner cylinder 20 described above
Can be configured by providing a plurality of air inflow pipes 23a projecting from the peripheral side wall of the inner cylinder 20 into the cylinder as shown in FIG. This air inflow pipe 23a
By providing the air supplied from the air supply source 3 toward the center of the inner cylinder 20, not only is it applicable to a complete combustion promoting device provided in a small incinerator, The size of the inner cylinder 20 of the apparatus 2 must be increased, but this is preferable because the air supplied from the air supply source 3 can be efficiently supplied into the inner cylinder 20 when applied to a large incinerator.

Each of the air inflow pipes 23a is connected to the inner cylinder 2
It is good to arrange in a substantially helical shape at predetermined intervals along the 0 inner wall surface. From this arrangement, it is possible to effectively generate an air flow that induces the flame of the burned material toward the upper part of the inner cylinder 20 and to smoothly flow the air flow toward the upper part of the inner cylinder. it can. Further, as shown in FIG. 4, it is preferable that the air inflow pipes 23a are arranged obliquely in one direction toward the circumference of the inner cylinder 22. In this case, the air flowing into the inner cylinder 20 from the air inflow pipe 23a becomes a rotational flow, and the air flow can be more effectively generated upward in the inner cylinder 20.

The above-mentioned air supply source 3 can branch off the branch pipe 33 below the middle of the air supply pipe 30 as shown in FIG. When the branch pipe 33 is provided, even if the intake of air into the combustion chamber 10 is insufficient due to a weather condition or the like, air can be reliably supplied from the lower side of the rostral 11 into the chamber of the combustion chamber 10. When the branch pipe 33 is provided, it is not always necessary to provide the air intake hole 13a of the combustion chamber 10.

The branch pipe 33 can be provided with an air control valve 34 inside the pipe. The air supplied through the branch pipe 33 is also controlled by the air adjustment valve 34, so that the air supplied into the inner cylinder 20 through the air supply pipe 30 and the complete combustion of the combustion target can be efficiently performed. Can be promoted. When air is supplied from the air supply source 3 through the branch pipe 33, the air is supplied while the air intake hole 13a of the combustion chamber 10 is closed.

The air supply source 3 has a timer (not shown) for stopping the supply of air after an arbitrary set time has elapsed.
Can also be provided. When the timer is provided, the air supplied from the air supply source can be stopped in accordance with the complete combustion of the material to be burned, so that unnecessary air supply can be prevented and the operation cost of the complete combustion promotion device 2 can be reduced. Further, when the above-described complete combustion promoting device is provided on the upper side of the incinerator 1, the functionality can be extremely enhanced as a device for incinerating dust and waste materials.

Although the above-described complete combustion promoting device has been described as being provided in an incinerator for incinerating dust and waste materials, it can be widely used as a complete combustion promoting device for a device having various combustion chambers. .

[0033]

As described above, according to the complete combustion promoting device of the present invention, the air sent into the inner cylinder as the object to be burned burns flows upward in the inner cylinder. As a result, the air flow in the combustion chamber can be activated, so that the object can be completely burned and the generation of smoke can be suppressed.

According to the incinerator according to the present invention, by providing the above-described complete combustion promoting device on the upper side, the incineration mechanism of the burnable material can be extremely enhanced.

[Brief description of the drawings]

FIG. 1 is a partial side sectional view showing an incinerator provided with a complete combustion promoting device according to the present invention.

FIG. 2 is a front view showing the incinerator.

FIG. 3 is a sectional view showing a modification of the complete combustion promoting device according to the present invention.

FIG. 4 is a cross-sectional view showing still another modified example of the device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Incinerator 10 Combustion chamber 11 Rostor 19 Upper exhaust port 2 Complete combustion promotion device 20 Inner cylinder 21 Outer cylinder 22 Air circulation chamber 23 Air inlet 23a Air inflow pipe 3 Air supply source 33 Branch pipe 34 Air adjustment valve

Claims (7)

(57) [Claims] 1. A combustion chamber for placing an object to be burned on an upper side of a rostrus, taking in air from a lower side of the rostrum, and burning the object to be burned in a room, is provided on a lower side. An inner cylinder that rises above the upper exhaust port so as to be able to exhaust air, an outer cylinder that surrounds the outer side of the inner cylinder at a distance from the peripheral side wall of the inner cylinder, and an air circulation formed by a gap between the inner cylinder and the outer cylinder And an air supply source connected to the outer cylinder in communication with the air circulation chamber, and air supplied from the air supply source flows into the inner cylinder from the air circulation chamber. A plurality of air inlets are provided on the peripheral side wall of the inner cylinder, and the air sent into the inner cylinder is caused to flow upward in the inner cylinder to attract the flame of the combustion target in the combustion chamber. Installed above the combustion chamber as an air flow mechanism A complete combustion promoting device characterized by the following. 2. The complete combustion promoting device according to claim 1, wherein the air inflow port is formed by a plurality of air inflow pipes projecting from the peripheral side wall of the inner cylinder into the cylinder. 3. The complete combustion promoting device according to claim 2, wherein the air inflow pipes are arranged substantially spirally at predetermined intervals along the inner surface of the peripheral side wall. 4. The complete combustion promoting device according to claim 2, wherein the air inflow pipes are arranged in one direction inclined toward the circumference of the inner cylinder. 5. The air supply source has a branch pipe connected to a combustion chamber at a lower side of the roaster, and an air adjustment valve for controlling air flowing into the combustion chamber is provided in the pipe of the branch pipe. The complete combustion promoting device according to any one of claims 1 to 4, wherein the device is provided. 6. The complete combustion promoting device according to claim 1, wherein the air supply source includes a timer capable of stopping the supply of air after an elapse of an arbitrary set time. 7. An incinerator comprising the complete combustion promoting device according to claim 1 on an upper side.