JPH0732340U - Small capacity incinerator - Google Patents

Abstract

(57) [Summary] [Purpose] Can be manufactured at low cost without the need for additional equipment,
Moreover, a small-capacity incinerator that actively burns regardless of the type of burned material and helps prevent environmental pollution is provided. [Structure] An inner can 2 having a bottomed tubular shape with an open upper end, an outer can 1 having a bottomless tubular shape with an open upper end, and a chimney-equipped lid 3 attached to an upper end opening of the outer can 1. The can 2 has an upper side wall 32 and a lower side wall 31 and is installed in the outer can 1. The can 2 is sealed between the upper end of the side wall of the inner can 2 and the inner circumference of the outer can 1 so as to prevent air from passing through. Cage, upper side wall of inner can 2
A plurality of gas combustion ventilation holes 42 are formed in 32, and a plurality of material combustion ventilation holes 41 are formed in the side wall lower portion 31, respectively, and both the gas combustion ventilation holes 42 and the material combustion ventilation holes 41 are nozzle-shaped. Therefore, the number of gas combustion air vents 42 is equal to the number of gas combustion air vents 41.
More than.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an incinerator. More specifically, it relates to a relatively small capacity incinerator used to incinerate waste such as household waste, paper, wood, clothing, waste oil, and polymeric substances in homes, factories and offices.

[0002]

[Prior art]

 Conventional small capacity incinerators have air intake holes formed on the side wall or bottom of single cans. However, if the burnable material such as dust or waste material is put inside the single can, there is a problem that the air flow is deteriorated and it is difficult to burn. In order to improve the circulation of air, it is easy to combust if air is forced to be sent by installing 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. there were. Therefore, the inventor of the present invention provides a small-capacity incinerator that can be manufactured at low cost without requiring additional equipment and has active combustion in Japanese Patent Application No. 5-29625 (small-capacity incinerator). .

[0003]

[Problems to be solved by the device]

 The small-capacity incinerator is composed of an inner can with a bottomed tubular shape and an open top, an outer can with a bottomless tubular shape with an open top, and a lid with a chimney attached to the top opening of the outer can. The inner can is installed in the outer can, and the upper end of the side wall of the inner can and the inner circumference of the outer can are hermetically sealed so that air does not escape. Has a plurality of air holes, and the air holes have a nozzle shape. 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 is uniformly and naturally replenished in the inner can. If the material to be burned is paper or wood, which does not generate much gas or smoke when 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 that generates a large amount of gas or smoke during combustion, or waste oil, the polymeric substance will burn too quickly below the inner can. However, a large amount of gas, smoke, etc. is generated and these move upward, but since a large amount of air is used for combustion of polymer substances, etc., there is less air flowing into the inner can from the upper ventilation hole. However, gas and smoke are 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 it actively burns regardless of the type of burned material and helps prevent environmental pollution. The purpose is to do.

[0004]

[Means for Solving the Problems]

 The small-capacity incinerator according to the present invention comprises 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 chimney lid attached to the upper end opening of the outer can. The inner can has upper and lower side walls, is installed in the outer can, and is sealed between the upper end of the inner can and the inner circumference of the outer can to prevent air from passing through. A plurality of gas combustion vent holes are formed in the upper side wall of the inner can, and a plurality of substance combustion vent holes are formed in the lower side wall, respectively. The vent holes are all nozzle-shaped, and the number of gas combustion vent holes is greater than the number of material combustion vent holes.

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

[0006]

[Action]

 In the present invention, when the air in the upper part of the inner can becomes hot due to combustion, hot air escapes from the upper chimney, and at the same time, air convection enters from the open bottom part 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 and gas for combustion of the inner can. Enter the inside of the inner can through the ventilation hole. Since both the material-combustion vent hole and the gas-combustion vent hole are nozzle-shaped, the pressure difference between the outside and the 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 air supplied to the upper part of the inner can is larger than the air supplied to the lower part of the inner can. Therefore, even if gas, smoke, etc. are generated due to combustion in the lower part of the inner can, they will burn vigorously in the upper part of the inner can to complete combustion.

[0007]

【Example】

 Next, an embodiment of the present invention will 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 substantially cylindrical member without a bottom whose both upper and lower ends are open, and includes a cylindrical portion 4 and a taper portion 5.

The inner can 2 is a bottomed cylindrical member composed 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 combustion chambers at equal intervals in the circumferential direction and at equal intervals in the vertical direction. 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 material combustion vent hole 41 has a nozzle shape, and the outer inlet has a large diameter and the inner 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 inner diameter of the material combustion ventilation hole 41 is 22 mm and the inner diameter of the gas combustion ventilation hole 42 is 25 mm, but the dimensions can be set freely. However, if the inner diameter of the gas combustion ventilation hole 42 is larger than 25 mm, the air ejection force will decrease, and conversely, if the inner diameter is smaller than 25 mm, the air ejection amount will be too small. The dimensions are preferably as in this example.

The gas combustion ventilation holes 42 are formed in a larger number than the object combustion ventilation holes 41. That is, the object 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, a total of six, are alternately formed, and the gas combustion air vents 42 are provided at equal intervals in the circumferential direction. A total of 48 rows of 4 rows are formed in 12 rows vertically at equal intervals. In this embodiment, the inner can 2 having an inner diameter of 570 mm and a height of 895 mm is provided with six object-combustion vent holes 41 and 48 gas-combustion vent holes 42 as shown in FIG. The inner diameter and height of 2 can be set freely, and if the gas combustion vents 42 are formed in a larger number than the object combustion vents 41, the number of the object combustion vents 41 and the gas combustion vents 42 and Arrangement 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 when burning paper or wood that hardly generates gas or smoke during combustion, but gas does not occur during combustion. When burning high-polymer substances or waste oil that generate a large amount of smoke, smoke, etc., a large amount of air flows into the lower part of the inner can 2 from the material combustion ventilation holes 41, so the high-molecular substances and waste oil burn too quickly. As a result, a large amount of gas or smoke is generated, and the amount exceeds the combustion capacity of the air flowing in from the gas combustion vent hole 42, so the gas and smoke rising from below the inner can 2 are not completely burned. Therefore, a large amount of gas, smoke, etc. are discharged from the chimney 9 to the outside air. On the contrary, if the number of the ventilation holes 41 for burning the material is extremely small (inner diameter 22 mm), the material to be burned in the lower portion of the inner can 2 will be incompletely burned, and a large amount of gas or smoke will be generated. Will occur.

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. in the upper part of the inner can 2, but from the lower part in the inner can 2. It suffices to be able to send the air capable of completely burning the rising gas, smoke, etc., upward in the inner can 2. Therefore, from the above viewpoint, it is preferable that the number and arrangement of the vent holes 41, 42 formed in the inner can 2 of this embodiment be as shown in FIG.

A lid 3 is openably and closably attached to the upper end opening of the outer can 1, and the lid 3 is provided with a chimney 9. The inner can 2 is installed in the outer can 1 by a supporting member 33, as shown in FIG. That is, the upper edge of the inner can 2 is in close contact with the inner periphery 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 into the lower portion of the inner can 2 and starts to be burned, the air in the inner can 2 is heated, its specific gravity becomes small, and it passes through the upper part of the outer can 1. Go out through the chimney 9. As a result, a pressure difference is created inside and outside the inner can 2, and due to this pressure difference, air enters from the lower end opening of the outer can 1. This air enters the space between the outer can 1 and the inner can 2, but the upper part of this space is closed, and the lower part 31 of the side wall of the inner can 2 has six ventilation holes 41 for material combustion. Also, 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 and above the inner can 2. 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 the nozzle shapes of the vent holes 41 and 42 convert the pressure difference into an air velocity. As a result, the air is sucked in vigorously and ejects to the inner center of the inner can 2. Since the six object combustion vents 41 are provided below the inner can 2, it is possible to supply oxygen to the combusted objects located below the inner can 2 evenly. The ware burns to generate gas, smoke, etc., which start to rise.

On the other hand, since the 48 gas combustion vent holes 42 are provided above the inner can 2, it is possible to supply a large amount of oxygen to the gas, smoke and the like rising from the lower part of the inner can 2. Since it can be formed, gas, smoke, and the like burn vigorously above the inner can 2. 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 high-molecular 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 surrounding area becomes hot and heats the burned material below, so the burned material further burns, generating gas and smoke, which rise. After that, the same thing is repeated, and the burned material is completely burned.

As described above, by using the incinerator A of this embodiment, 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 a blower is attached, so there is no need to install additional equipment using power such as a blower, and it is possible to manufacture at a 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 wind. Even if you accidentally throw in a spray can and explode it, the explosion sound and shock wave are safe because they are dispersed and absorbed by the 54 vent holes 41, 42. 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 updraft is generated, so even if paper or wood is burned, ashes are generated. Since it does not jump out of the chimney 9, it does not fly to the surrounding area and cause a fire. When a high-polymer material is burned, the surroundings become extremely hot, so the incinerator made of iron plate becomes a gnugnya, so incinerators for combustion of high-molecular materials 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 flows vigorously in the 54 ventilation holes 41, 42, and at the same time, the high temperature flame is pushed into the center of the furnace. Since the ambient temperature of 2 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, smoke, etc. are completely burned, a chimney for exhausting gas, smoke, etc. is unnecessary, and only a chimney for ventilation is required, so the chimney may be small. Therefore, since the inlet 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. Therefore, the burned material burns well. In addition, 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 smaller than the pressure outside the inner can 2, so Ash 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 part where the burned material is burning, air is ejected from these ventilation holes. , A cooling action is performed around the ventilation holes. Therefore, the operator only has to open the lid 3 and put in the burned material, and thus the efficiency of the refuse incineration work can be greatly improved.

[0018]

[Effect of device]

 According to the present invention, it is possible to manufacture at low cost without requiring additional equipment, and the gas and smoke generated by combustion in the lower part of the inner can are completely combusted in the upper part of the inner can. It is possible to provide a small-volume incinerator that actively burns regardless of the type of burned material and helps prevent 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)

[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 ventilation holes are formed in the upper side wall of the can, and a plurality of material combustion ventilation holes are formed in the lower side wall of the can. The gas combustion ventilation hole and the material combustion ventilation hole are both 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.