JP2017146085A - Combustor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combustor capable of suppressing occurrence of clinker as much as possible.SOLUTION: A combustor includes a body cylinder to which combustion material is supplied, a combustion cylinder connected to a tip of the body cylinder. a combustion material supply passage configured to supply the combustion material to the body cylinder, and first to n-th air supply units configured to supply air into the body cylinder. The first to n-th air supply units are aligned in order of first to n-th from a root of the body cylinder to the tip, and the first to n-th air supply units come to increase an air amount supplied to the body cylinder in order of first to n-th.SELECTED DRAWING: Figure 1

Description

  An object of this invention is to provide the combustion apparatus which suppresses generation | occurrence | production of clinker using regenerated fuels, such as biomass.

  In recent years, combustion devices have been used for various purposes. It is used for processing aimed at utilizing the heat generated by the combustion device.

  For example, it is necessary to combust waste such as garbage and general waste. This is because waste such as food waste and general waste can be treated by the combustion treatment. Even in such waste combustion treatment, a combustion apparatus that generates heat is required.

  Of course, the combustion apparatus is also used in the combustion treatment of various wastes other than raw garbage and general garbage.

  Or in the site preparation used for various purposes, it may be necessary to modify the soil of the site. Of course, land is required to construct a building as well as to form farmland and cultivated land. These sites are often exposed to various environments and may contain a lot of moisture and oil, or may contain impurities such as sludge and organic matter. These soils are difficult to construct as they are and to be used for specific purposes such as farmland and cultivated land. Or soil and sludge from factories and sewage may cause the soil to contain a large amount of impurities.

  If soil containing impurities from these sludge and sewage is left untreated, it may become a foul odor or pollution. Of course, as described above, it is difficult to use for specific purposes or as a construction site. Soil containing a large amount of impurities, moisture, and the like exists also in general places, and it is required to modify these general soils.

  Even when these general soils are reformed, they may be realized by combustion. A combustion apparatus is also used in the heat treatment for soil modification. Soil reforming is realized by applying heat from the combustion device to the soil, or applying heat from the combustion device to the storage chamber for storing the pumped-up soil.

  Alternatively, a combustion device may be used to generate heat required by a power generation device that generates electric power. Some power generators generate power by rotating a turbine in engine operation. A combustion device may be used to generate heat as a power source for engine operation.

  There are also facilities that require heat, such as greenhouses and plant factories. A combustion apparatus may be used to generate such heat.

  Or a combustion apparatus may be utilized as heat sources, such as heating.

  As described above, combustion devices are used in various fields. In particular, due to the recent increase in environmental awareness, not only fossil fuels such as oil and coal but also recycled materials such as biomass and wood chips are increasingly used as fuel for combustion devices.

  Under such circumstances, a combustion apparatus with improved combustion efficiency has been proposed (see, for example, Patent Document 1).

JP 2007-303737 A

  Patent Document 1 discloses that the pyrolysis furnace apparatus 10 includes a combustion chamber 27, a rotary drum 11 provided through the combustion chamber 27, and an input screw 22 provided in the inlet-side non-heating region 11 a of the rotary drum 11. It has. A scraping plate 33 is fixed to an upper portion of the screw casing 23 of the charging screw 22 provided in the inlet-side non-heating region 11a of the rotary drum 11, and the scraping plate 33 has a curved shape while rotating outward in the radial direction. Have. The thermal decomposition path apparatus which removes the deposit | attachment adhering to the rotating drum 11 inner surface with this scraping board 33 is disclosed.

  Japanese Patent Laid-Open No. 2004-260688 aims to burn waste or the like and separate it into a gas that is a volatile component and a combustion residual in the combustion.

  However, the technique of Patent Document 1 causes a clinker to remain inside the combustion chamber and the drum. Due to the occurrence of this clinker, it is difficult for the pyrolysis path device to increase its combustion efficiency. This is because if the clinker remains or adheres, combustion is inhibited by the clinker and the combustion efficiency decreases.

  Alternatively, when the clinker remains or adheres to the inside, it is necessary to periodically remove the clinker. The clinker removal work is time consuming and the combustion process cannot be performed during the work period. For this reason, there is also a problem that the combustion efficiency on the time axis is lowered.

  Moreover, there is also a problem that the combustion capacity in the thermal decomposition path device is lowered due to the clinker remaining or adhering. Such clinker generation is more likely to occur when the fuel in the combustion apparatus is biomass, woody fuel, or the like.

  As described above, in the conventional combustion apparatus, the generation of clinker is large, and there are problems that the combustion efficiency and the combustion capacity become insufficient due to various problems caused by the clinker.

  In view of the above problems, an object of the present invention is to provide a combustion apparatus that suppresses generation of clinker as much as possible.

The combustion apparatus of the present invention includes a main body cylinder to which a combustion material is supplied,
A combustion cylinder connected to the tip of the body cylinder;
A combustion material supply passage for supplying the combustion material to the main body cylinder;
A first air supply unit to an nth air supply unit for supplying air inside the main body cylinder,
The first air supply unit to the nth air supply unit are arranged in the first to nth order from the base of the main body tube to the tip,
Each of the first air supply unit to the nth air supply unit increases the amount of air supplied to the main body cylinder in the first to nth order.

  The combustion apparatus of the present invention is divided into a main body cylinder in which fuel is introduced and combustion starts, and a combustion cylinder in which gas generated in the main body cylinder burns. In this separated state, the clinker is less likely to be generated in the main body cylinder due to the stepwise control in which the combustion temperature rises as the fuel enters the main body cylinder and then moves toward the combustion cylinder.

  Since the clinker is less likely to occur in the main body cylinder, it is difficult to cause problems due to the occurrence of the clinker. In addition, a reduction in combustion efficiency due to various problems can be prevented.

  By preventing a reduction in combustion efficiency, it is possible to reliably achieve the purpose in various applications using the combustion device.

It is a side view of the combustion apparatus in Embodiment 1 of this invention. It is a rear view of the main body cylinder in Embodiment 1 of this invention. It is a perspective view of the 1st air supply part in Embodiment 1 of this invention.

A combustion apparatus according to a first aspect of the present invention includes a main body cylinder to which a combustion material is supplied,
A combustion cylinder connected to the tip of the body cylinder;
A combustion material supply passage for supplying the combustion material to the main body cylinder;
A first air supply unit to an nth air supply unit for supplying air inside the main body cylinder,
The first air supply unit to the nth air supply unit are arranged in the first to nth order from the base of the main body tube to the tip,
Each of the first air supply unit to the nth air supply unit increases the amount of air supplied to the main body cylinder in the first to nth order.

  With this configuration, the combustion material can be burned while gradually increasing the combustion temperature in the main body cylinder. As a result, generation of clinker inside the main body cylinder can be suppressed.

  In the combustion apparatus according to the second aspect of the present invention, in addition to the first aspect, the combustion material supply path is provided at the base of the main body cylinder.

  With this configuration, combustion of the combustion material in the main body cylinder is started from the root. By starting from the root, the combustion temperature in the main body cylinder gradually increases toward the tip.

In the combustion apparatus according to the third aspect of the present invention, in addition to the first or second aspect, the internal space of the main body cylinder and the internal space of the combustion cylinder are in communication.
The tip of the combustion cylinder has an opening communicating with the outside,
The main body cylinder and the combustion cylinder have a horizontal or downward inclination with respect to the horizontal plane.

  With this configuration, the combustion ash generated in the main body cylinder is easily discharged to the outside.

  In the combustion apparatus according to the fourth aspect of the present invention, in addition to any one of the first to third aspects, each of the first air supply part to the nth air supply part is independent of the main body cylinder. Can be supplied with air.

  With this configuration, adjustment for supplying different amounts of air can be freely performed.

  In the combustion apparatus according to the fifth aspect of the present invention, in addition to any one of the first to fourth aspects of the invention, supply of air with different air amounts from each of the first air supply unit to the nth air supply unit Thus, in the main body cylinder, combustion heat increases from the root toward the tip.

  With this configuration, generation of clinker inside the main body cylinder is suppressed. Further, the combustion heat inside the combustion cylinder rises more than the inside of the main body cylinder, and combustion of the combustion material and generation of combustion heat can be performed efficiently.

  In the combustion apparatus according to the sixth aspect of the present invention, in addition to any one of the first to fifth aspects, the amount of air supplied from each of the first air supply unit to the nth air supply unit is maximum or In total, this is an amount that can prioritize gasification of the combustion material over melting.

  With this configuration, generation and adhesion of the clinker are suppressed in the main body cylinder.

In the combustion apparatus according to the seventh aspect of the present invention, in addition to any one of the first to sixth aspects, each of the first air supply part to the nth air supply part is a cylindrical shape surrounding the outer periphery of the main body cylinder. And
The main body cylinder has a plurality of air holes communicating with each of the first air supply unit to the nth air supply unit along the outer periphery thereof,
Each of the cylindrical first air supply unit to n-th air supply unit can supply air into the main body cylinder through a plurality of air holes.

  With this configuration, the first air supply unit or the like can supply air from the outside of the main body cylinder. As a result, it is possible to supply different amounts of air depending on the longitudinal position of the main body cylinder.

In the combustion apparatus according to the eighth aspect of the present invention, in addition to the seventh aspect, each of the cylindrical first air supply unit to nth air supply unit is rotatable,
Each of the first air supply unit to the nth air supply unit can supply air into the main body cylinder while rotating.

  With this configuration, it is possible to generate a rotating flow and realize the diffusion of the combustion material.

  In the combustion apparatus according to the ninth aspect of the present invention, in addition to the eighth aspect, the air supplied from the first air supply unit to the nth air supply unit forms a rotating flow from the inside of the main body cylinder to the combustion cylinder. it can.

  With this configuration, the combustion material can be diffused. As a result, clinker adhesion can also be prevented.

  In the combustion apparatus according to the tenth aspect of the present invention, in addition to the ninth aspect, the rotating flow conveys the combustion material burned in the main body cylinder to the combustion cylinder.

  With this configuration, the final combustion of the combustion material in the combustion cylinder can be realized.

  In the combustion apparatus according to the eleventh aspect of the present invention, in addition to any of the first to tenth aspects, the combustion temperature inside the combustion cylinder is higher than the combustion temperature inside the main body cylinder.

  With this configuration, in the combustion cylinder, the ash, carbon, and the like left unburned in the main body cylinder are finally burned, and complete combustion of the combustion material is realized.

  In the combustion apparatus according to the twelfth aspect of the present invention, in addition to any of the first to eleventh aspects of the invention, in the combustion cylinder, the combustion material is given priority over the gasification that is the final combustion of the combustion material. To burn.

  With this configuration, complete combustion of the combustion material is realized.

  In the combustion apparatus according to a thirteenth aspect of the present invention, in addition to any one of the first to twelfth aspects, the combustion material comprises at least one of a wood chip, a bamboo chip, a bioethanol fuel, and a biodiesel fuel. Including.

  With this configuration, it is easy to obtain the combustion material and the environmental load can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  (Embodiment 1)

(Overview)
First, an overall outline of the combustion apparatus in the first embodiment will be described. 1 is a side view of a combustion apparatus according to Embodiment 1 of the present invention.

  The combustion apparatus 1 includes a main body cylinder 2, a combustion cylinder 3, a combustion material supply path 21, and a first air supply unit 4 to a third air supply unit 6.

  The main body cylinder 2 is supplied with a combustion material and burns the combustion material. A combustion cylinder 3 is connected to the tip of the main body cylinder 2. The front end of the main body cylinder 2 has an opening 31, and the opening 31 communicates the front end of the main body cylinder 2 with the inside of the combustion cylinder 3. That is, in the combustion apparatus 1, the inside of the main body cylinder 2 and the inside of the combustion cylinder 3 communicate with each other, and an internal space can be formed as a whole.

The combustion material supply path 21 is connected to the main body cylinder 2 in order to supply the combustion material to the main body cylinder 2. As shown in FIG. 1, it is also preferably connected to the base of the main body cylinder 2 so as to communicate with the inside of the main body cylinder 2 and supply the combustion material into the main body cylinder 2. Of course, the combustion material supply path 21 may be provided in addition to the base of the main body cylinder 2.

The main body cylinder 2 further includes an ignition device 22. The ignition device 22 can ignite and burn the combustion material supplied into the main body cylinder 2.

  The combustion cylinder 3 is provided at the tip of the main body cylinder 2 in a state where it is communicated with the main body cylinder 2 in the internal space. With this structure, the combustion material that has started to burn in the main body cylinder 2 reaches the combustion cylinder 3 while burning. The combustion cylinder 3 burns the reached combustion material while burning.

  Here, the main body cylinder 2 and the combustion cylinder 3 are the same by burning with priority given to gasification without melting the combustion material. The main body cylinder 2 burns the combustion material by giving priority to gasifying (ashing) the combustion material. On the other hand, the combustion cylinder 3 performs final combustion of the ash remaining in the main body cylinder 2. In particular, the combustion cylinder 3 realizes these final combustions at a higher temperature than the main body cylinder 2.

  The combustion cylinder 3 can burn the combustion material at a higher temperature than the main body cylinder 2 to obtain a higher amount of heat.

  In this way, the combustion apparatus 1 burns the combustion material with a two-stage configuration of the main body cylinder 2 that starts combustion and the combustion cylinder 3 that finishes combustion. In this two-stage combustion, the main body cylinder 2 burns the combustion material at a combustion temperature lower than that of the combustion cylinder 3, and the combustion cylinder 3 burns the combustion material at a higher temperature.

  The first air supply unit 4 to the third air supply unit 6 are provided on the outer periphery of the main body cylinder 2. An air hole 25 is provided on the outer periphery of the main body cylinder 2. Each of the first air supply unit 4 to the third air supply unit 6 is attached to the air hole 25 of the main body cylinder 2. With this structure, each of the first air supply unit 4 to the third air supply unit 6 can supply air into the main body cylinder 2.

  Each of the first air supply unit 4 to the third air supply unit 6 is provided side by side from the base of the main body cylinder 2 (the side opposite to the combustion cylinder 3). In a state of being attached in this order, the first air supply unit 4 receives the adjustment of the air adjustment valve 41 and supplies air into the main body cylinder 2. Similarly, the second air supply unit 5 supplies air to the inside of the main body unit 2 under the adjustment of the air adjustment valve 51. Further, the third air supply unit 6 supplies air to the inside of the main body unit 2 under the adjustment of the air adjustment valve 61.

  Here, each of the 1st air supply part 4-the 3rd air supply part 6 increases the air quantity supplied to the inside of the main body cylinder 2 in the 1st-3rd order. That is, the second air supply unit 5 supplies a necessary amount of air while checking the amount of air supplied by the first air supply unit 4. The third air supply unit 6 supplies the necessary amount of air to the main body cylinder 2 while viewing the amount of air supplied by the first air supply unit 4 and the second air supply unit 5.

  Due to such a relationship, the amount of air supplied increases in the order of the first air supply unit 4 to the third air supply unit 6. That is, the air that increases from the root toward the tip is supplied into the main body cylinder 2.

  As a result, in the main body cylinder 2, the combustion temperature increases as the air amount increases from the root toward the tip. By these, the combustion material which started combustion at the base of the main body cylinder 2 raises the combustion temperature as it goes from the root to the tip. Furthermore, when it moves from the main body cylinder 2 to the combustion cylinder 3, the combustion temperature is raised. Thus, by gradually raising the temperature from the start of combustion, the combustion material can be converted to ash while gasifying and can generate high combustion heat in the combustion chamber 3.

  In the main body cylinder 2, the combustion heat changes from a low temperature to a high temperature in the order of the first air supply unit 4 to the third air supply unit 6. In the combustion at a low temperature, the gasification of the combustion material is prioritized, and the gasification combustion of the combustion material proceeds as the temperature increases. This is realized from the base of the main body cylinder 2 to the combustion cylinder 3 which is the tip.

  In this way, the combustion prioritizing gasification at a higher temperature proceeds toward the tip inside the main body cylinder 2, so that the combustion in the main body cylinder 2 does not become unstable, the combustion material melts and the clinker is Generation (attachment) can be prevented.

  The combustion apparatus 1 suppresses generation of clinker or the like by such two-stage combustion of the main body cylinder 2 and the combustion cylinder 3 and an increase in combustion heat by adjusting the amount of air from the root to the tip of the main body cylinder 2. it can. In the end, high combustion heat can be generated while suppressing.

  Each of the first air supply unit 4 to the third air supply unit 6 in FIG. 1 is an example of the first air supply unit to the nth air supply unit.

  Next, the detail of each part is demonstrated.

(Main body cylinder)
The main body cylinder 2 is a cylindrical member and has an internal space. The root is closed, and a combustion material supply path 21 and an ignition device 22 are provided at the root as shown in FIG. Further, an air supply path 26 may be provided at the root.

  FIG. 2 is a rear view of the main body cylinder in the first embodiment of the present invention. FIG. 2 shows a root which is the back surface of the main body cylinder 2. The outer periphery of the main body cylinder 2 is provided with the first air supply unit 3 to the third air supply unit 6 described in FIG. In FIG. 1, the upper and lower sides are shown for easy understanding, but the shape may be a shape covering the outer periphery as shown in FIG. 2.

  The first air supply unit 4 to the third air supply unit 6 supply air to the inside of the main body cylinder 2 through the air holes 25 provided on the outer periphery of the main body cylinder 2. In FIG. 2, the air hole 25 is omitted in the drawing, but the air hole 25 is provided on the outer periphery as shown in FIG.

  The main body cylinder 2 has a cylindrical shape in which the base is closed and there is an internal space so that the opening 31 side is open. Combustion material is supplied from the combustion material supply path 21 to the internal space. By providing the combustion material supply path 21 at the base of the main body cylinder 2, the combustion material is supplied from the base inside the main body cylinder 2. Since the main body cylinder 2 burns the combustion material while gradually raising the heat of combustion from the root, supplying the combustion material from the root is suitable for this combustion.

  For this reason, it is preferable that the combustion material supply path 21 is provided at the base of the main body cylinder 2.

  An ignition device 22 is also provided at the base of the main body cylinder 2. This is because the ignition device 22 is preferably also at the root in accordance with the combustion material supplied from the combustion material supply path 21 at the root.

  Further, the air supply path 26 is provided at the base of the main body cylinder 2, so that the ignition of the supplied combustion material can be assisted. It is desirable that the air supply path 26 be oriented in the same direction as the air hole 25 provided in the main body cylinder 2.

  The air holes 25 provided on the outer periphery are provided in accordance with the positions of the first air supply unit 4 to the third air supply unit 6 provided on the outer periphery. This is because the air supplied from these becomes a way to the internal space.

  The main body cylinder 2 is preferably rotatable. This is because sales of combustion materials can be expanded in the internal space. For this reason, it is also suitable that the main body cylinder 2 includes a stirring plate in its internal space. Here, it is preferable that the main body cylinder 2 rotates along the arrow A in FIGS.

  In addition, it is thought that the combustion ash generated inside the main body cylinder 2 by the rotation falls into the first air supply unit 4 to the third air supply unit 6 through the air hole 25. It is also preferable that a shutter for the ash discharge part 27 is provided at the lower part of the air supply part for supplying the ash.

  For example, when the main body cylinder 2 rotates, it is conceivable that ash or the like falls from the shutter into the air hole 25 that is downward. Even if the combustion ash falls, the air from the first air supply unit 4 or the like may be supplied to the internal space of the main body cylinder 2 through the air holes 25.

  It is preferable that a discharge unit 27 for discharging the combustion ash leaked into the first air supply unit 4 and the like (the leaked combustion ash may remain) is provided below the main body cylinder 2.

  The discharge unit 27 can discharge the combustion ash that has entered the first air supply unit 4 and the like to the outside, and can prevent an influence on the operation of the first air supply unit 4 and the like.

  In addition, it is also preferable that the main body cylinder 2 is in a horizontal or forward tilted posture so that the combustion ash is easily moved from the main body cylinder 2 to the combustion cylinder 3 and further released from the tip of the combustion cylinder 3 to the outside.

(Combustion cylinder)
The combustion cylinder 3 is connected to the tip of the main body cylinder 2. The front end of the main body cylinder 2 is provided with an opening 31, and the internal space of the main body cylinder 2 and the internal space of the combustion cylinder 3 communicate with each other by being connected to the combustion cylinder 3 through the opening 31. The main body cylinder 2 and the combustion cylinder 3 may be connected to form an integral structure, and the internal space may be connected.

  Since the combustion cylinder 3 forms an internal space that is connected to and communicates with the tip of the main body cylinder 2, it is preferable that the combustion cylinder 3 is also cylindrical like the main body cylinder 2. As a result, due to the structure in which the main body cylinder 2 and the combustion cylinder 3 are connected, the combustion apparatus 1 has a cylindrical outer shape as a whole. Of course, the cylindrical shape is a rough outer shape and may be partially provided with an irregular shape.

  The tip of the combustion cylinder 3 is open, and the combustion heat obtained by spreading the combustion material can be released to the outside. In addition, heat generated by burning the combustion material can be supplied to the outside.

  The combustion material is supplied from the combustion material supply path 21 to the main body cylinder 2. In the main body cylinder 21, the combustion material supplied to the inside by the ignition device 22 is burned. In the main body cylinder 2, air is supplied through the first air supply path 4 to the third air supply path 6 to burn the combustion material.

  At this time, the temperature inside the main body cylinder 2 is lower than the temperature inside the combustion cylinder 3. For this reason, in the main body cylinder 2, priority is given to gasifying the combustion material. When the gasified combustion material reaches the combustion cylinder 3, the remainder of the combustion material is combusted at a higher temperature. Due to this high temperature combustion, the combustion material is burned so that final gasification is prioritized.

  By this combustion in which gasification is prioritized, the combustion material burns at a higher temperature and generates high combustion heat. The combustion cylinder 3 can supply heat to a system or the like that requires a high amount of heat by releasing this high combustion heat to the outside. In addition, since the tip of the combustion cylinder 3 is open, air is easily supplied into the combustion cylinder 3, and high combustion heat can be generated by obtaining a large amount of air.

  Since the combustion cylinder 3 is connected to the main body cylinder 2, it has the same isomerism as the posture of the main body cylinder 2. For example, when the main body cylinder 2 has a horizontal attitude, the combustion cylinder 3 assumes a horizontal attitude in accordance with this. Alternatively, when the main body cylinder 2 has a downward inclination, the combustion cylinder 3 also has a downward inclination according to this. The main body cylinder 2 and the combustion cylinder 3 are preferably horizontal or inclined downward during operation.

  In the combustion cylinder 3, the combustion material is combusted at a temperature higher than that of the main body cylinder 2, so that ash and combustion heat are released from the opening at the tip. For example, a power generation device or the like uses the released combustion heat.

  As described above, the combustion apparatus 1 can obtain higher combustion heat by burning in the combustion cylinder 3 at a higher temperature following the combustion in the main body cylinder 2. In addition, generation of clinker or the like due to combustion can be reduced.

  That is, the combustion cylinder 3 burns the combustion material and ash left unburned in the main body cylinder 2 at a temperature higher than that of the main body cylinder 2. By this combustion method, it is possible to prevent the clinker from being generated by melting the combustion material. The final combustion that prioritizes gasification is performed, and the remaining ash and carbon are completely burned. As a result, even in the combustion cylinder 3, the generation of clinker can be suppressed.

  From the main body cylinder 2 to the combustion cylinder 3, the combustion material is combusted in a linear temperature rise from the start of combustion of the combustion material to the final combustion due to a gradual increase in the amount of air in the main body cylinder 2. By appropriate connection of such a change in temperature rise, generation of clinker can be suppressed from the main body cylinder 2 to the combustion cylinder 3. In particular, since the final combustion at a high temperature in the combustion cylinder 3 is in the final stage, the combustion in the main body cylinder 2 is also more stable, and the generation of clinker in the combustion in the main body cylinder 2 is easily suppressed. Combined with the stepwise adjustment of the air amount in the main body cylinder 2, the combustion in the combustion cylinder 3 stabilizes the entire combustion.

(1st air supply part-nth air supply part)
A first air supply unit 4 to an nth air supply unit are provided on the outer periphery of the main body cylinder 2. 1 and 2, a first air supply unit 4 to a third air supply unit 6 are provided. The first air supply unit 4 is connected to the first air regulating valve 41 and can supply air into the main body cylinder 2. At this time, the first air supply unit 4 is provided at the base side of the outer periphery of the main body cylinder 2, so the first air supply unit 4 supplies air to the internal space on the base side of the main body cylinder 2. Supply.

  Here, an air hole 25 is provided on the outer periphery of the main body cylinder 2. A part of the air hole 25 is provided at a place corresponding to the installation position of the first air supply unit 4. The air hole 25 corresponding to the installation position of the first air supply unit 4 supplies the air from the first air supply unit 4 to the internal space of the main body cylinder 2.

  Similarly, the second air supply unit 5 is provided on the outer periphery of the main body cylinder 2 and on the tip side from the first air supply unit 4. A part of the air hole 25 exists at a location corresponding to the installation position of the second air supply unit 5.

  A second air regulating valve 51 is connected to the second air supply unit 5, and the second air regulating valve 51 sends out air. By sending out the air, air is supplied into the main body cylinder 2 from the air hole 25 corresponding to the installation position of the second air supply unit 5. At this time, the second air supply unit 5 supplies air to the inside of the main body cylinder 2 at a position closer to the tip than the first air supply unit 4.

  Similarly, the third air supply unit 6 is provided on the outer periphery of the main body cylinder 2 and on the tip side of the second air supply unit 5. In the case of FIG. 1, the third air supply unit 6 is provided on the most distal end side of the main body cylinder 2. In addition, a part of the air hole 25 exists at a location corresponding to the installation position of the third air supply unit 6.

  A third air / air regulating valve 61 is connected to the third air supply unit 6, and the third air / air regulating valve 61 sends out air. Air is supplied into the main body cylinder 2 from the air hole 25 corresponding to the installation position of the third air supply unit 6 by sending out the air. That is, the third air supply unit 6 can supply air into the main body cylinder 2 at the extreme end of the main body cylinder 2.

  Thus, the first air supply unit 4 supplies air to the base of the main body cylinder 2, the second air supply unit 5 supplies air near the center of the main body cylinder 2, and the third air supply unit 6 Then, air is supplied near the tip of the main body cylinder 2.

  Here, the amount of air supplied by the second air supply unit 5 is larger than the amount of air supplied by the first air supply unit 4, and the third air supply unit 6 supplies more air than the amount of air supplied by the second air supply unit 5. Large amount of air to do. That is, the main body cylinder 2 is supplied with an air amount that increases in the order of the root, the center, and the tip. As a result, it is possible to prevent the clinker from being generated in the combustion of the combustion material inside the main body cylinder 2.

  In addition, as the air volume gradually increases, the combustion temperature also gradually increases. As a result, the combustion material gradually advances in the degree of combustion inside the main body cylinder 2, and incomplete combustion or the like hardly occurs. In addition, as the combustion temperature gradually rises, the fluidity of the combustion material increases within the main body cylinder 2. Together with this, the combustion material can move to the combustion cylinder 3 while burning.

  Thus, in the main body cylinder 2, the combustion material can be more reliably burned by gradually increasing the air amount by supplying different air amounts. In addition, clinker is hardly generated by giving priority to gasification while moving to the combustion cylinder 3 while maintaining a high combustion temperature.

  Here, it is also preferable that each of the first air supply unit 4, the second air supply unit 5, and the third air supply unit 6 can supply air to the main body cylinder 2 independently of each other. Each of the first air supply unit 4 to the third air supply unit 6 includes a first air-air adjustment valve 41 to a third air-air adjustment valve 61 individually. For this reason, air can be supplied independently.

  Since air can be supplied independently, it is possible to adjust the amount of air supplied by each of the first air supply unit 4 to the third air supply unit 6. At this time, the difference can be adjusted on the assumption that the amount of air supplied by the third air supply unit 6 is larger than that of the first air supply unit 4.

  Due to the difference in the air amount between the first air supply unit 4 to the third air supply unit 6, the amount of air supplied in the main body cylinder 2 increases from the root toward the tip. As a result, in the main body cylinder 2, the combustion heat increases from the root toward the tip.

  The amount of air supplied from each of the first air supply unit 4 to the third air supply unit 6 is preferably an amount that can give priority to the gasification of the combustion material over the melting in the maximum or the total. This is because such an air amount makes it difficult for clinker to be generated inside the main body cylinder 2. As a result, the combustion heat in the combustion cylinder 3 becomes higher than the combustion heat of the main body cylinder 2, and the combustion material that has reached the combustion cylinder 3 can be surely burned out.

  In addition, the 1st air supply part 4-the 3rd air supply part 6 rotate according to this because the main body cylinder 2 rotates. As a result, there is an advantage that the rotation inside the main body cylinder 2 and the rotation of the inflow of air are combined, and the combustion material diffuses inside the main body cylinder 2 so that it becomes difficult to become a clinker.

  Further, the combustion cylinder 3 also rotates as the main body cylinder 2 rotates. By this rotation, the combustion material that reaches the combustion cylinder 3 is also diffused, and combustion inside the combustion cylinder 3 is further promoted. Combined with the high combustion heat in the combustion cylinder 3, the combustion material is completely combusted in the combustion cylinder 3 and the generation of clinker or the like is suppressed.

  Furthermore, the air holes 25 are also preferably provided obliquely with respect to the main body cylinder 2. By being inclined, the air supplied from the air hole 25 to the inside of the main body cylinder 2 generates a swirling flow. In particular, the swirl flow can be formed by being inclined with respect to the circumference of the main body cylinder 2.

(Air volume control)
As described above, each of the first air supply unit 4 to the third air supply unit 6 has a cylindrical shape surrounding the outer periphery of the main body tube 2. FIG. 3 is a perspective view of the first air supply unit according to Embodiment 1 of the present invention. As shown in FIG. 3, the first air supply unit 4 is cylindrical. Note that the first air adjustment valve 41 and other elements are omitted for ease of illustration.

  The 2nd air supply part 5 and the 3rd air supply part 6 also have the shape similar to FIG.

  The main body cylinder 2 has air holes 25 along the outer periphery thereof. The air holes 25 communicate with the internal space of the main body cylinder 2 and the outside, and the first air supply unit 3 and the like send air into the main body cylinder 3 through the air holes 25 that communicate with each other.

  Here, the amount of air supplied to the main body cylinder 2 increases in the order of the first air supply unit 4, the second air supply unit 5, and the third air supply unit 6. This increase may be realized by controlling the first air-air regulating valve 41 provided in the first air supply unit 4. Or the number or volume of the air holes 25 between the 1st air supply part 4 and the main body cylinder 2, the number or volume of the air holes 25 between the 2nd air supply part 5 and the main body cylinder 2, 3rd air supply It may be realized by the difference in the number or volume of the air holes 25 between the portion 6 and the main body cylinder 2.

  Thus, the 1st air supply part 4-the 3rd air supply part 6 supply the air which increases as it goes to the front-end | tip from the base of the main body cylinder 2. FIG. As a result, the 1st air supply part 4-the 3rd air supply part 6 can raise the combustion heat inside the main body cylinder 2 as it goes to the front-end | tip from a root.

  The combustion apparatus 1 of Embodiment 1 can suppress generation | occurrence | production of the clinker of a combustion material, and can make a combustion material complete combustion efficiently, and can produce | generate high combustion heat.

  Note that the number of air supply units is not limited to three, and a first air supply unit to an nth air supply unit may be provided.

  (Embodiment 2)

  Next, a second embodiment will be described.

(Rotation of air supply unit)
Independent of the rotation of the main body cylinder 2, each of the first air supply part 4 to the third air supply part 6 is independent of the outer periphery of the main body cylinder 2, and the first air supply part 4 to the third air supply. The part 6 can supply air into the main body cylinder 2.

  In addition, it supplies from the air hole 25 from the 1st air supply part 4-the 3rd air supply part 6, without changing a relative position with the main body cylinder 2. FIG. The main body cylinder 2 may be rotating, and the main body cylinder 2 may not be rotating.

  By supplying air from the air hole 25 while rotating, a rotating flow can be formed from the inside of the main body cylinder 2 to the inside of the combustion cylinder 3. This may be due to the inclination of the air holes 25 of the first air supply unit 4 to the third air supply unit 6, the rotation of the main body cylinder 2, or the rotation of both.

  The rotating flow can convey the combustion material burned in the main body cylinder 2 to the combustion cylinder 3. Further, the combustion material can be diffused inside the main body cylinder 2. By such an action, it is possible to suppress the combustion material that has not been burned out from the main body tube 2 or the occurrence of clinker.

  Further, the integral amount of the air supplied from the main body cylinder 2 to the combustion cylinder 3 can be moved by the rotating flow. By this movement, a large amount of air is supplied to the combustion cylinder 3, and high combustion heat can be realized. In combination with the mechanism described in the first embodiment, the combustion heat in the combustion cylinder 3 is higher than the combustion heat in the main body cylinder 2.

(Combustion material)
The combustion material includes at least one of wood chips, bamboo chips, bioethanol fuel, and biodiesel fuel. This is because these fuels are easily available and have a low environmental impact.

  As described above, the combustion apparatus 1 according to Embodiment 2 can further suppress the generation of clinker. In addition, since the combustion material can be burned while gradually increasing the combustion efficiency inside the combustion device 1, the physical load can be suppressed and high combustion heat can be obtained.

  This high combustion heat can be used for various applications.

  As mentioned above, the combustion apparatus demonstrated by Embodiment 1-2 is an example explaining the meaning of this invention, and includes the deformation | transformation and remodeling in the range which does not deviate from the meaning of this invention.

DESCRIPTION OF SYMBOLS 1 Combustion apparatus 2 Main body cylinder 21 Combustion material supply path 22 Ignition apparatus 25 Air hole 26 Air supply path 27 Ash discharge part 3 Combustion cylinder 4 1st air supply part 41 1st air adjustment valve 5 2nd air supply part 51 2nd air Regulating valve 6 3rd air supply part 61 3rd air regulating valve

Claims (14)

A body cylinder to which the combustion material is supplied;
A combustion cylinder connected to the tip of the main body cylinder;
A combustion material supply path for supplying the combustion material to the main body cylinder;
A first air supply unit to an nth air supply unit for supplying air inside the main body cylinder;
The first air supply unit to the nth air supply unit are arranged in the first to nth order from the base of the main body tube to the tip,
Each of the first air supply unit to the nth air supply unit is a combustion apparatus in which the amount of air supplied to the main body cylinder increases in the first to nth order.   The combustion apparatus according to claim 1, wherein the combustion material supply path is provided at a base of the main body cylinder. The internal space of the main body cylinder and the internal space of the combustion cylinder are in communication,
The tip of the combustion cylinder has an opening communicating with the outside,
The combustion apparatus according to claim 1, wherein the main body cylinder and the combustion cylinder have a downward inclination with respect to a horizontal plane.   4. The combustion apparatus according to claim 1, wherein each of the first air supply unit to the n-th air supply unit is capable of supplying air to the main body cylinder independently of each other.   The combustion heat increases from the root toward the tip in the inside of the main body cylinder by supplying air with different air amounts from each of the first air supply part to the nth air supply part. The combustion apparatus in any one of.   The amount of air supplied from each of the first air supply unit to the nth air supply unit is a maximum or total amount that can give priority to gasification of the combustion material over melting. Or a combustion apparatus according to claim 1. Each of the first air supply part to the nth air supply part is a cylinder surrounding the outer periphery of the main body cylinder,
The main body cylinder has a plurality of air holes communicating with each of the first air supply unit to the nth air supply unit along the outer periphery thereof,
Each of said cylindrical said 1st air supply part-n-th air supply part can supply air inside the said main body cylinder through these air holes. Combustion equipment. Each of the cylindrical first air supply unit to n-th air supply unit is rotatable,
The combustion apparatus according to claim 7, wherein each of the first air supply unit to the nth air supply unit is capable of supplying air into the main body cylinder while rotating.   The combustion apparatus according to claim 8, wherein the air supplied from the first air supply unit to the nth air supply unit can form a rotating flow from the inside of the main body cylinder to the combustion cylinder.   The combustion apparatus according to claim 9, wherein the rotating flow conveys the combustion material combusted inside the main body cylinder to the combustion cylinder.   The combustion apparatus according to any one of claims 1 to 10, wherein a combustion temperature inside the combustion cylinder is higher than a combustion temperature inside the main body cylinder.   The combustion apparatus according to any one of claims 1 to 11, wherein the combustion material is burned in the combustion cylinder in preference to gasification which is final combustion of the combustion material.   The combustion apparatus according to any one of claims 1 to 12, wherein the combustion material includes at least one of a wood chip, a bamboo chip, a bioethanol fuel, and a biodiesel fuel.   The said air hole with which the said 1st air supply part-nth air supply part is provided is formed diagonally with respect to the periphery of the said main body cylinder, The Claim 7-13