JPH1089638A - Incinerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent leakage of a moisture content dripping from garbage to the outside of an incinerator by a method wherein a combustion burner is arranged on a side wall such that a combustion flame is radiated in a combustion furnace, a bottom wall is formed in a recessed part in cross section, and the side wall is arranged above the upper surface of the recessed part. SOLUTION: A combustion burner 13 is fixed such that a combustion flame 15 is radiated in a combustion furnace 3. A substance 2 to be incinerated, for example, garbage, is contained on the slope of a bottom wall 4 of the combustion furnace 3. A moisture content 33 dripping from garbage 2 gathers in a recessed part 4d of the bottom wall 4. Further, since the bottom wall 4 is formed in a recessed part in cross section in a side wall 5, i.e., in the vicinity of a horizontal plane 4f connected to a slope 4e, a dripping moisture content 33 gathers on the horizontal surface 4f along a slope 4e. Thus, since the moisture content 33 is prevented from flowing over an upper surface 4g of the recessed part, leakage to the outside is prevented from occurring. Similarly, the dripping moisture content 33 partially gathers on the slope 4e but since the recessed part 4d is formed, the moisture content 33 is prevented from flowing over an upper surface 4i or 4j of the recessed part and leakage to the outside does not occur.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an incinerator.

[0002]

2. Description of the Related Art Conventionally, an incinerator for incinerating objects to be incinerated by a combustion burner is disclosed in, for example, Japanese Patent Application No. 8-139 by the present applicant.
No. 226. The combustion furnace used in this incinerator is formed in a substantially box shape by a bottom wall, four side walls arranged around the bottom wall, and an upper wall arranged on the side wall. A combustion burner is attached to one side wall.

[0003]

However, this incinerator is
When incinerated materials such as garbage are stored in the combustion furnace and when the incinerated materials are incinerated, there is a drawback that filthy water, etc. dripped from the garbage etc. leaks out of the incinerator and creates an unclean environment. is there. The present inventor has investigated the cause, and found that since the inner surface of the bottom wall is substantially flat, the above-mentioned dirty water or the like leaks to the outside through the boundary surface between the bottom wall and the side wall. . Therefore, the present invention has been made in view of such conventional drawbacks, and provides an incinerator in which filthy water and the like dripped from incinerated materials such as garbage are prevented from leaking outside the incinerator.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a combustion furnace having a bottom box, a side wall, and an upper wall, which is formed in a substantially box shape and in which incineration objects are stored, And a combustion burner fixed to the side wall so as to radiate a combustion flame therein, the bottom wall having a concave cross section is formed, and the side wall is disposed on the upper surface of the concave portion.

In the present invention, preferably, the bottom wall forms a horizontal plane connected to the inclined surface near the side wall, and the bottom wall also has a concave section in the horizontal plane.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An incinerator according to an embodiment of the present invention will be described below with reference to FIGS. 1 is a sectional view of a main part of the present incinerator 1, FIG. 2 is a plan view of the present incinerator 1, and FIG. 3 is a sectional view taken along the line AA of FIG. In the incinerator 1 shown in these figures, an incinerated object 2 such as various kinds of refuse such as garbage is stored in a combustion furnace 3. The combustion furnace 3 has a bottom wall 4, side walls 5, 6, 7, 8 and an upper wall 9, and is formed in a substantially box shape.

The bottom wall 4 is, for example, an outer shell 4 made of an iron plate on the outside.
a, a heat insulating portion 4b made of a heat insulating material inside the outer trunk 4a,
An inner body 4c made of heat-resistant cement or the like is provided inside the heat insulating portion 4b. The inner body 4c of the bottom wall 4 is formed such that its cross section forms a recess 4d (see FIG. 3). The inner surface of the bottom wall 4 is formed with an inclined surface 4e so as to become higher toward the rear, and a horizontal surface 4f connected to the inclined surface 4e at the front, that is, near the side wall 5, is formed. The bottom wall 4 is a horizontal surface 4f
In this case, it is desirable to form the cross section so as to form the recess 4d (see FIG. 1).

[0008] The side wall 5 is, for example, an outer shell 5 made of an iron plate on the outside.
a, a heat insulating portion 5b inside thereof, and an inner body 5c made of heat-resistant cement or the like inside thereof. The inner trunk 5c of the side wall 5 is disposed on the upper surface 4g of the recess located in front of the bottom wall 4. The side wall 5 has an opening 5d at an appropriate position.

Similarly, the side wall 6 has an outer shell 6a and a heat insulating portion 6b.
And an inner body 6c, an opening 6d is formed at an appropriate position, and the inner body 6c has an upper surface 4h of a concave portion located behind the bottom wall 4.
(See FIG. 1).

As shown in FIG. 3, the side wall 7 has, for example, an outer shell 7a made of an iron plate on the outside and a heat insulating part 7b on the inside.
An inner body 7c made of heat-resistant cement or the like is provided on the inside. The inner body 7c is arranged on the upper surface 4i of the concave portion located on the right side of the bottom wall 4. Similarly, the side wall 8 has the outer shell 8
a, a heat insulating portion 8b, and an inner body 8c.
c is disposed on the upper surface 4j of the concave portion located on the left side of the bottom wall 4.

The upper wall 9 is composed of an outer shell 9a, a heat insulating part 9b, and an inner shell 9c, and has an opening 9d in an appropriate position. Part of the bottom surface of the inner body 9c of the upper wall 9 is the inner body 7c of the side wall 7.
And the other part of the bottom surface of the inner body 9c is a side wall 8
Is disposed on the upper surface of the inner trunk 8c.

An outer shell 9a of the upper wall 9 is fixed to an outer shell 7a of the side wall 7 with bolts 10a.
a is fixed by bolts 10b. Similarly, the outer shell 4a of the bottom wall 4 is fixed to the outer shell 7a by bolts 10c, and is fixed to the outer shell 8a by bolts 10d. The combustion furnace 3 is configured in this manner. The combustion furnace 3 is formed in a substantially parallelogram shape when viewed from the side (see FIG. 1), and is formed in a substantially box shape when viewed from a plane (see FIG. 2). Things.

The lid 11 comprises an outer shell 11a, a heat insulating portion 11b, and an inner shell 11c, and is provided so as to open and close an inlet (opening) 9d formed at an appropriate position on the upper wall 9. The first ash outlet 12 is provided with a door and attached to the side wall 8 of the combustion furnace 3.

The combustion burner 13 has a burner main body 14 and a combustion pipe 16 having an ejection port for ejecting a combustion flame 15 at the tip.
And a nozzle 17 for jetting kerosene or the like in a mist shape at the center of the combustion pipe 16, an igniter on the upper surface, a damper on the side surface, and an electromagnetic pump for supplying kerosene on the side surface. The combustion pipe 16 is inserted into the opening 5 d so as to emit the combustion flame 15 into the combustion furnace 3, and the combustion burner 13 is fixed to the side wall 5.

A smoke eliminating furnace 19 is provided for making exhaust gas generated from the combustion furnace 3 smokeless by a smoke eliminating burner 18.
The smoke elimination burner 18 is fixed to the side wall of the smoke elimination furnace 19. The smoke removing furnace 19 is made of, for example, an outer stainless steel plate and an inner heat-resistant cement, is formed in a cylindrical shape with a bottom, and an opening is formed in an upper part. The second ash outlet 20 is provided with a door, and is disposed below the smoke elimination furnace 19.

The smoke suppression burner 18 has substantially the same configuration as the combustion burner 13, and has another combustion flame 21 from the smoke suppression burner 18.
Are radiated toward a position deviated from the center of the smoke eliminating furnace 19, that is, in the circumferential direction. The exhaust duct 22 is made of an outer stainless steel plate and an inner heat-resistant cement.
Is disposed between the opening 6d of the side wall 6 and the opening of the side wall of the smoke removing furnace 19, and connects the combustion furnace 3 and the smoke removing furnace 19.

The upper smoke elimination tube 23 is formed in a cylindrical shape, and is fixed on the smoke elimination furnace 19 so as to communicate with the upper opening of the smoke elimination furnace 19. The chimney 24 is fixed on the upper smoke elimination tube 23 so as to communicate with the upper smoke elimination tube 23.

The blower 25 is arranged below the smoke-removing furnace 19, one end of the blower duct 26 is connected to the blower opening of the blower 25, and the other end is arranged to extend toward the upper part of the upper smoke-canter 23. .

One end of each of the mounts 27 and 28 is fixed to a base 29, the other end is mounted to the outer shell 5a of the side wall 5 of the combustion furnace 3, and one end of the mount 30 is fixed to the base 29. The end is attached to the outer shell 6a of the side wall 6. Mounting base 31, 3
One end of each of the two is attached to the base 29, and the other end of each is attached to the bottom surface of the smoke eliminating furnace 19. The incinerator 1 is constituted by the above components.

Next, the operation of the incinerator 1 will be described with reference to FIGS. 1 to 3 again. First, open the lid 11 and incinerate 2
(Eg, garbage) is stored so as to spread on the inclined surface 4 e of the bottom wall 4 of the combustion furnace 3. At this time, dirty (dirty) water 33 dropped from the garbage 2 accumulates in the recess 4 d of the bottom wall 4. Desirably, the bottom wall 4 is formed in a concave shape in the vicinity of the side wall 5, that is, in the vicinity of a horizontal surface 4f connected to the inclined surface 4e. As a result, the water 33 dropped from the garbage 2 travels along the inclined surface 4e and accumulates on the horizontal surface 4f.

Therefore, since the water 33 does not exceed the upper surface 4g of the concave portion, it is possible to prevent the water 33 from leaking outside through the boundary surface between the bottom wall 4 and the side wall 5 (that is, the upper surface 4g of the concave portion). Similarly, the water 33 dropped from the garbage 2 partially or temporarily accumulates on the inclined surface 4e, but since the recess 4d is provided, the water 33 may exceed the upper surface 4i or 4j of the recess. In addition, it is possible to prevent the water 33 from leaking outside through the boundary surface 4i between the side wall 7 and the bottom wall 4 or the boundary surface 4j between the side wall 8 and the bottom wall 4.

Next, the blower 25 is operated, and thereafter, the smoke elimination burner 18 is operated, and the incineration operation is started. Thereafter, when a temperature sensor (not shown) in the smoke-removing furnace 19 detects that the temperature has reached a predetermined temperature, the operation of the combustion burner 13 is started.
The combustion flame 15 emitted by the combustion burner 13 becomes a high-temperature combustion flame due to natural draft, and the high-temperature gas tends to go upward. Since the incineration object 2 is placed on the inclined surface 4 e of the bottom wall 4, the combustion flame 15 extends along the surface of the incineration object 2.

Therefore, the contact area between the combustion flame 15 and the incineration object 2 increases, and the combustion efficiency (thermal energy received by the incineration object 2 / thermal energy output by the combustion burner 13) increases. As a result, the incinerated material 2 is uniformly heated, the water contained therein is evaporated, and the incinerated material 2 is uniformly incinerated.
In addition, since the lower part of the incinerated material 2 that is incinerated from below burns, the heat of combustion is added to the heat of the combustion flame 15 and the upper part of the incinerated material 2 is incinerated. It is completely incinerated and the incineration time is shortened.

The operation of the blower 25 causes air to flow upward from the other end (tip) of the blower duct 26, and the unburned gas generated from the combustion furnace 3 passes through the exhaust duct 22 by an ejector effect due to the flow. And the smoke removal furnace 1
It is led into 9. Then, the unburned gas is supplied to the
The secondary combustion is carried out by another combustion flame 21 directed in a direction deviated from the center in the inside, and the smoke eliminating furnace 19 is swirled in the circumferential direction.

The swirled exhaust gas is supplied to the upper smoke elimination tube 23.
Is discharged into the atmosphere through the chimney 24. As described above, since the unburned gas swirls in the smoke removing furnace 19, the convection time in the smoke removing furnace 19 becomes longer than before, so that it is cleaner (more smokeless and odorless) than before. Exhaust gas can be exhausted.

In this way, when the combustion burner 13 is operated for a predetermined time (for example, about 1 to 3 hours) to end the incineration operation,
The combustion burner 13 is stopped. After that, the operation of the smoke elimination burner 18 is continued for a while, and the smokeless operation is performed. Thereafter, when a predetermined time has elapsed, the smoke elimination burner 18 is stopped, and when the inside of the smoke elimination furnace 19 drops to a predetermined temperature, the blower 25 is stopped. This concludes the description of the operation of the present incinerator 1.

[0027]

According to the present invention, as described above, the bottom wall is formed to have a concave cross section, and the side wall is disposed on the upper surface of the concave portion. As a result, when incinerators store incinerated materials (garbage and the like) and when the incinerated materials are incinerated, dirty water and the like dropped from the garbage and the like accumulate in the recesses. Therefore, the water does not exceed the upper surface of the concave portion, and the water and the like can be prevented from leaking outside through the boundary surface between the bottom wall and the side wall (that is, the upper surface of the concave portion).

In the present invention, the bottom wall is desirably formed with a horizontal plane connected to the inclined surface near the side wall, and a concave section near the horizontal plane. As a result, the water or the like dropped from the incineration material travels along the inclined surface and accumulates on the horizontal surface, and the horizontal surface has a concave shape, so that the water or the like stays on the horizontal surface. Therefore, since water does not pass over the upper surface of the concave portion located on the horizontal plane, it can be more completely prevented from leaking outside through the boundary surface between the bottom wall and the side wall.

As described above, according to the present invention, the combustion flame radiated from the combustion burner fixed to the side wall of the combustion furnace extends in a backward upward shape by natural draft. The inner surface of the bottom wall is formed as an inclined surface rising rearward. As a result, the combustion flame extends along the surface of the incineration object disposed on the inner surface of the bottom wall, and the contact area with the incineration object increases. Therefore, since the incineration is performed while evaporating the water content of the incineration (garbage and the like), the incineration is almost complete, and the combustion efficiency is increased.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of an incinerator according to an embodiment of the present invention.

FIG. 2 is a plan view of the incinerator.

FIG. 3 is a sectional view taken along the line AA of FIG.

[Explanation of symbols]

 Reference Signs List 3 combustion furnace 4 bottom wall 4d recessed part 5, 6, 7, 8 side wall 9 top wall 13 combustion burner

Continued on the front page (51) Int.Cl. ⁶ Identification code FI F23G 5/50 ZAB F23G 5/50 ZABJ (72) Inventor Kiyoshi Kishimoto 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Tottori Sanyo Electric Co., Ltd.

Claims (2)

[Claims] 1. A combustion furnace which has a bottom wall, a side wall, and an upper wall, is formed in a substantially box shape, and accommodates an incineration object, and is fixed to the side wall so as to emit a combustion flame into the combustion furnace. An incinerator comprising a combustion burner, wherein the bottom wall is formed in a cross section in a concave shape, and the side wall is disposed on an upper surface of the concave portion. 2. The bottom wall is formed with a horizontal surface connected to an inclined surface near the side wall, and the bottom wall has a recessed cross section in the horizontal surface. 1
Incinerator.