JP2503098Y2 - Small capacity incinerator - Google Patents

Description

[Detailed description of the device]

[0001]

TECHNICAL FIELD The present invention relates to an incinerator. More specifically, the present invention relates to an incinerator having a relatively small capacity used for incinerating household waste and waste such as paper, wood, clothing, waste oil, and polymeric substances in homes, factories, offices and the like.

[0002]

2. Description of the Related Art A conventional small-capacity incinerator has an air intake hole formed in the side wall or bottom of a single can. However, if a burnable material such as dust or waste material is placed inside the single can, there is a problem that the air flow is poor and it is difficult to burn. And to improve the circulation of air,
Combustion tends to occur when air is forcibly sent by providing additional equipment such as a blower. However, in such a case, there is a problem that the manufacturing cost increases and it becomes unsuitable for a small capacity incinerator. Therefore, the inventor of the present invention has a practical application for a small-capacity incinerator that can be manufactured at low cost without requiring additional equipment and has active combustion.
-29625 (small capacity incinerator).

[0003]

The small-capacity incinerator described above has a cylindrical bottomed inner can with an open upper end, an outer can with a bottomless cylindrical open at the upper end, and an open upper end of the outer can. The inner can is installed in the outer can, and is sealed between the upper end of the side wall of the inner can and the inner circumference of the outer can so that air does not escape. A plurality of vent holes are formed in the side wall of the inner can, and the vent holes are nozzle-shaped. Therefore, the air that has entered from below the outer can is vigorously ejected into the inner can through the nozzle-shaped vent holes, so that the air can be replenished naturally in the inner can. If the material to be burned is paper, wood, or the like that does not generate much gas or smoke during burning, it is convenient because it is almost completely burned. However, if the material to be burned in the inner can is a polymeric substance or waste oil that generates a large amount of gas, smoke, etc. at the time of combustion, the polymeric substance etc. will burn too quickly in the lower part of the inner can. A large amount of gas, smoke, etc. is generated and these move upward, but a large amount of air is used for combustion of polymer substances, etc. The smoke and smoke become incompletely burned, and a large amount of gas and smoke are emitted from the chimney into the atmosphere, which poses a problem of environmental pollution. In view of such circumstances, the present invention provides a small-capacity incinerator that can be manufactured at low cost without requiring additional equipment, and that actively burns regardless of the type of burned material and helps prevent environmental pollution. With the goal.

[0004]

The small-capacity incinerator of the present invention comprises a bottomed tubular inner can, an upper can open, a bottomless tubular outer can, and an upper can opening of the outer can. And a lid with a chimney attached to the inner can, the inner can being provided in the outer can with the upper side wall and the lower side wall, and between the upper end of the side wall of the inner can and the inner circumference of the outer can. The inner can is hermetically sealed so as not to pass through, and a plurality of gas combustion vent holes are formed in the upper portion of the side wall of the inner can, and a plurality of object combustion vent holes are formed in the lower portion of the side wall. Each of the pores and the substance-burning vent hole is nozzle-shaped, and the number of gas-burning vent holes is larger than the number of substance-burning vent holes.

The term "material combustion air vent" as used in the present invention mainly means an air air vent for burning solids (paper, wood, polymer substances, etc.) and liquids (waste oil, etc.). When the burned material is a polymer substance or waste oil, etc., the pores are mainly air vents for burning gas, smoke, etc. generated during combustion. In the case of highly corrugated cardboard, etc., it mainly refers to an air vent for burning wood or cardboard itself.

[0006]

In the present invention, when the air in the upper part of the inner can becomes hot due to combustion, the hot air escapes from the upper chimney, and at the same time, air convection enters from the open bottom of the outer cylinder. Since the air between the outer and inner cans is sealed at the upper end, the air that enters from below the outer can enters the space between the outer and inner cans, and vents for gas combustion and Enters the inside of the inner can through the combustion ventilation hole. Since both the material-combustion vent hole and the gas-combustion vent hole are nozzle-shaped, the difference in atmospheric pressure between the outside and inside of each vent hole is converted into velocity, and air is vigorously ejected into the inner can. At this time, since the number of gas combustion ventilation holes is greater than the number of material combustion ventilation holes, the amount of air replenished upward in the inner can is larger than the amount of air replenished downward in the inner can. Therefore, even if gas, smoke, or the like is generated by combustion in the lower portion of the inner can, they are vigorously combusted in the upper portion of the inner can and completely burned.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. 1 is a vertical sectional view of an incinerator A according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of a gas combustion vent hole or an object combustion vent hole, and FIG. 3 is a developed view of an inner can. In FIG. 1, 1 is an outer can, 2 is an inner can, and 3 is a lid. The outer can 1 is a bottomless, substantially cylindrical member having an open upper end and a lower end, and includes a cylindrical portion 4 and a tapered portion 5.

The inner can 2 is a bottomed cylindrical member consisting of a bottom wall 6 and a side wall 7, and has an open upper end. As shown in FIG. 1, the side wall 7 is composed of a lower side wall 31 and an upper side wall 32. As shown in FIG. 3, the lower side wall 31 has a plurality of material combustion chambers at equal circumferential intervals and at equal vertical intervals. A ventilation hole 41 is formed, and similarly, a plurality of gas combustion ventilation holes 42 are formed in the upper side wall portion 32.

As shown in FIG. 2, the ventilation hole 41 for burning the material has a nozzle shape, and an outside inlet has a large diameter and an inside outlet has a small diameter. Such a nozzle has a function of converting the pressure of the fluid into a velocity, and when there is a pressure difference between the outer can and the inner can, air can be strongly sucked and ejected into the inner can 2. The same applies to the gas combustion vent hole 42. In the present embodiment, the ventilation holes 41 for burning
Although the inner diameter of each of these is 22 mm and the inner diameter of each gas combustion vent hole 42 is 25 mm, the dimensions can be set freely. But,
If the inner diameter of the gas combustion ventilation hole 42 is larger than 25 mm, the air ejection force will decrease. Conversely, if the inner diameter is smaller than 25 mm, the air ejection amount will be too small.
The inner diameter dimension of 42 is preferably as in this embodiment.

The gas combustion ventilation holes 42 are formed in a larger number than the object combustion ventilation holes 41. That is, the gas combustion air vents 41 are formed in three rows at equal intervals in the circumferential direction and two rows in the up and down direction, that is, a total of six air holes are alternately formed.
Is a total of 12 at even intervals in the circumferential direction and 4 rows at equal intervals in the vertical direction.
48 pieces are formed in 12 columns. In this example,
The inner can 2 having an inner diameter of 570 mm and a height of 895 mm was provided with six object-combustion vent holes 41 and 48 gas-combustion vent holes 42 as shown in FIG. It can be freely set, and the gas combustion vent hole 42 is the object combustion vent hole 41.
If they are formed in a larger number, the number and arrangement of the material combustion vent holes 41 and the gas combustion vent holes 42 can be set freely.

However, if the number of the ventilation holes 41 (inner diameter 22 mm) for material combustion is increased, there is no problem in burning paper or wood which hardly generate gas or smoke at the time of combustion. When burning high-polymer substances or waste oil that generate a large amount of smoke, etc., a large amount of air flows into the lower portion of the inner can 2 from the material combustion ventilation holes 41, so the high-molecular substances and waste oil burn too quickly. Since a large amount of gas or smoke is generated and the amount thereof exceeds the combustion capacity of the air flowing in from the gas combustion vent hole 42, the gas or smoke rising from the lower part of the inner can 2 is not completely burned. A large amount of gas, smoke, etc. will be discharged from the chimney 9 into the outside air. On the contrary, if the number of the object combustion vent holes 41 (inner diameter 22 mm) is extremely decreased, the combusted material itself in the lower part of the inner can 2 will be incompletely combusted, and a large amount of gas or smoke will be generated. Will be done.

On the other hand, the larger the number of gas combustion vent holes 42 (inner diameter 25 mm), the more convenient it is to burn gas, smoke, etc. above the inner can 2. It suffices if the air capable of completely burning the generated gas, smoke, etc. can be sent to the upper part of the inner can 2.
Therefore, from the above viewpoint, it is preferable that the number and arrangement of the vent holes 41 and 42 formed in the inner can 2 of this embodiment be as shown in FIG.

A lid 3 is attached to the upper opening of the outer can 1 so as to be openable and closable, and a lid 9 is provided on the lid 3. The inner can 2 is installed in the outer can 1 by a support member 33, as shown in FIG. That is, the upper edge of the inner can 2 is in close contact with the inner circumference of the tapered portion 5 of the outer can 1, and the upper end of the inner can 2 and the outer can 1 are sealed.

Next, the combustion action of the incinerator A of this embodiment will be described with reference to FIG. Now, when dust, paper, wood, or other combustible material is put in the lower portion of the inner can 2 and starts to be burned, the air in the inner can 2 is heated, the specific gravity becomes small, and the chimney goes through the upper part of the outer can 1. Go out from 9. As a result, a pressure difference is created between the inside and the outside of the inner can 2, and air enters through the lower end opening of the outer can 1 due to this pressure difference. This air enters the space between the outer can 1 and the inner can 2, but the upper part of this space is sealed, and the lower part of the side wall 31 of the inner can 2 has six material-combustion vents 41. Further, since 48 gas combustion air vents 42 are formed in the upper side wall 32 of the inner can 2, most of the air passes through the 48 gas combustion air vents 42 to the upper side of the inner can 2. A part of the air is sucked into the lower portion of the inner can 2 through the six object combustion ventilation holes 41. At this time, of course, there is a pressure difference between the inside and outside of the material combustion vent hole 41 and the gas combustion vent hole 42, respectively, but since the nozzle shapes of the vent holes 41 and 42 convert the pressure difference into the velocity of air, Is vigorously sucked and ejects to the inner center of the inner can 2. Since the six object-combustion vent holes 41 are provided below the inner can 2, it is possible to supply oxygen to the combusted objects below the inner can 2 evenly. Things burn and produce gases and smoke that start to rise.

On the other hand, the 48 gas combustion vent holes 42 are
Since it is provided above the inner can 2, it is possible to supply a large amount of oxygen to the gas and smoke that have risen from below in the inner can 2, so that there is no gas or smoke above the inner can 2. It burns vigorously. Note that if the burned material is paper or wood, it does not generate much gas or smoke, but if the burned material is a polymer substance or waste oil, a large amount of gas or smoke is generated. The effect is particularly remarkable. When gas or smoke burns vigorously, the temperature of the surrounding area becomes high and heats the burned material underneath, so that the burned material further burns to generate gas and smoke, which rise. Hereinafter, the same thing is repeated, and the burned material is completely burned.

As described above, if the incinerator A of this embodiment is used, it is possible to completely burn regardless of the kind of the burned material, so that it has the following effects in addition to helping prevent environmental pollution. Since the air flow is accelerated by the nozzle, it has the same effect as when the blower is attached, so that it is not necessary to provide additional equipment using power such as a blower, and it is possible to manufacture at low cost. Since air is taken in from between the outer can 1 and the inner can 2, it can be burned stably without being affected by weather conditions such as strong winds. Even if a spray can or the like is accidentally thrown in and it explodes, the explosion sound and shock wave are dispersed and absorbed by the 54 ventilation holes 41, 42, so it is safe. The vent holes 41 and 42 are formed toward the center of the inner can 2, and the air is ejected toward the center of the inner can 2 so that no upward airflow is generated. Since it does not jump out of the chimney 9, it does not fly to the surroundings to cause a fire. Since the surroundings become extremely hot when a high-molecular substance is burned, the incinerator made of iron plate becomes gnugnya, so incinerators for burning high-molecular substances have traditionally been constructed of bricks, etc. In the case of the incinerator A as an example, the inner can 2 is cooled because the air vigorously flows through the 54 ventilation holes 41 and 42, and at the same time the high temperature flame is pushed into the center of the furnace, so that Since the ambient temperature does not become high and only the temperature of the central part of the furnace becomes high, the incinerator can be constructed with an iron plate, so that it is easy to handle and can be manufactured at low cost.

Since gas and smoke are completely burned,
The chimney can be small, as it does not require a chimney for exhausting gas or smoke and only needs a chimney for ventilation. Therefore, since the input port of the burned material can be formed large, the burned material can be charged into the incinerator easily and safely. Since a plurality of ventilation holes 41, 42 are formed perpendicularly to the side wall 7 of the inner can 2 and at equal intervals in the vertical direction, even if ash accumulates at the bottom of the inner can 2, the ejection of air is not hindered. So
Combustibles burn well. Also, even if a large amount of ash accumulates on the bottom of the inner can 2, the vent hole has a nozzle shape, and the pressure inside the inner can 2 is lower than the pressure outside the inner can 2, so the ash inside the inner can 2 is small. Will not spill out of the vents. The 54 vent holes 41, 42 themselves can automatically adjust the ejection of air. That is, since air is sucked only from the ventilation holes in the range from the bottom of the inner can 2 to the portion where the burned material is burning, air is ejected from those ventilation holes and A cooling action takes place in the surroundings. Therefore, the operator only has to open the lid 3 and put in the combusted material, so that the efficiency of the refuse incineration work can be greatly improved.

[0018]

EFFECTS OF THE INVENTION According to the present invention, it is possible to manufacture at low cost without requiring additional equipment, and the gas and smoke generated by the combustion in the lower part of the inner can are completely combusted in the upper part of the inner can. Therefore, it is possible to provide a small-capacity incinerator that actively burns regardless of the type of burned material and is useful for preventing environmental pollution.

[Brief description of drawings]

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

FIG. 2 is an enlarged view of a vent hole.

FIG. 3 is a development view of an inner can.

[Explanation of symbols]

A Incinerator 1 Outer can 2 Inner can 3 Lid 7 Side wall 31 Side wall lower part 32 Side wall upper part 41 Material combustion vent 42 Gas combustion vent

Claims (1)

(57) [Scope of utility model registration request] 1. An inner can having a bottomed tubular shape with an open upper end, an outer can having a bottomless tubular shape with an open upper end, and a lid with a chimney attached to the upper end opening of the outer can. The can has an upper side wall and a lower side wall, is installed in the outer can, and is sealed between the upper end of the side wall of the inner can and the inner circumference of the outer can to prevent air from passing through the can. A plurality of gas combustion vent holes are formed in the upper side wall of the can, and a plurality of object combustion vent holes are formed in the lower side wall, and both the gas combustion vent hole and the object combustion vent hole are nozzle-shaped. And a small-capacity incinerator characterized in that the number of gas-combustion vents is greater than the number of material-combustion vents.