JP4909950B2 - Small solid fuel combustion device and stove provided with small solid fuel combustion device in the combustion chamber - Google Patents

Description

  The present invention relates to a small solid fuel combustion apparatus for burning small solid fuel such as wood pellets and a stove provided with a small solid fuel combustion apparatus in a combustion chamber.

  In recent years, for example, from the viewpoint of environmental protection, development of a stove using a small solid fuel such as a wood pellet which is a non-fossil fuel has been promoted.

  That is, for example, a pellet stove has been proposed in which wood pellets that have been crushed and compressed to be effectively used as biomass resources, such as thinned wood and sawn timber, are combusted as small solid fuel. In general, the pellets are stored in a hopper, sent out one after another by a screw conveyor, stacked on a combustion chamber roast (combustion table provided with a large number of combustion air inflow portions), and burned. .

  In general, a motor for driving a screw conveyor for feeding the pellets is controlled to adjust the combustion time and the thermal power.

  However, conventionally, it is difficult to burn small solid fuels such as wood pellets simply by stacking them on the rooster.

  On the other hand, if the primary air for combustion from the rooster or the secondary air sent from the surroundings is forcibly sent by a fan or the like and burned, it will burn at once.

  Furthermore, even if pellets are supplied one after another in such a state, the fed pellets are also burned one after another, and the amount of pellet consumption increases unnecessarily.

  Moreover, even if it is configured to automatically control the pellet supply to the burning pellets little by little, it does not only require power, but this automatic control is very difficult, and even if it is supplied little by little, it will burn immediately. Therefore, it is not possible to burn slowly for a long time while raising the flame, and eventually the flame will not rise with little supply, or it will burn immediately even if it rises, so if you do not keep supplying it one after another, the flame will be maintained It is not possible to wastefully increase consumption.

JP 2004-316997 A JP 2005-121337 A

  The present invention has been completed through repeated research and trial and error to break down the current situation, and it is a combustion device that stacks small solid fuels such as wood pellets and burns them. Combustion of small solid fuel that can surely achieve the healing effect due to the fact that the flame rises up and burns and the flame is visible without burning power greater than necessary and wasteful consumption. An object of the present invention is to provide a stove in which a combustion apparatus for a small solid fuel is provided in a combustion chamber.

  The gist of the present invention will be described with reference to the accompanying drawings.

On the fuel mounting surface 14 where the combustion air inflow part 1 is formed, a combustion cylinder part 2 standing in communication with the combustion air inflow part 1 and a small solid disposed in the combustion cylinder part 2 The combustion cylinder part 2 is formed in a surrounding case shape having upper and lower openings, and a lower opening 9 of the combustion cylinder part 2 is formed in the combustion chamber 8. When the combustion cylinder portion 2 is provided in a standing state, the combustion cylinder portion 2 is configured to communicate with a plurality of air holes 1 provided as the combustion air inflow portion 1, and the upper opening 10 of the combustion cylinder portion 2 has the upper opening. As a structure in which a notch 12 for visual recognition connected to the portion 10 is provided in the front portion, the amount of the small solid fuel 3 in the basket portion 4 and the flame at the time of combustion of the small solid fuel 3 are configured to be easily visible. the basket portion 4, the addition to the structure formed by using the network 6 or porous plate having a large number of vent holes 5 Arranged in the combustion cylinder part 2 in a floating state from the grounded lower end of the firing cylinder part 2, and swinging the basket part 4 by pushing up or hitting the bottom part of the basket part 4 by operating the swing operation part 15. Combustion is configured such that the ash in the cage portion 4 can be dropped downward , and flows into the combustion cylinder portion 2 from the combustion air inflow portion 1 between the outer periphery of the cage portion 4 and the inner surface of the combustion cylinder portion 2. As a configuration in which a combustion air circulation gap 7 through which the combustion air flows is formed, the small solid fuel 3 accommodated in a large number in the cage portion 4 surrounded by the combustion cylinder portion 2 is used as the combustion air inflow portion 1. So that it burns in contact with the combustion air flowing into the cage portion 4 through the numerous air holes 5 and flows into the combustion cylinder 2 from the combustion air flow gap 7. configured, disposed in the combustion cylinder portion 2 to be installed in the combustion chamber 8 the Gore portion 4, which relates to a combustion device of small solid fuel, characterized in that provided removably with extraction freely or the combustion tube portion 2.

Further, the main body part is wider than the main body part 2A of the combustion cylinder part 2 which increases the opening area of the lower opening part 9 of the combustion cylinder part 2 and increases the inflow amount of combustion air from the combustion air inflow part 1. 2. The small solid fuel combustion apparatus according to claim 1, wherein the combustion cylinder portion 2 is configured by providing a vast lower end portion 11 having a lower height than 2 </ b> A in a continuous state at a lower portion of the main body portion 2 </ b> A. It is concerned.

Further, the combustion air inflow portion 1 other than the combustion air inflow portion 1 communicating with the lower opening 9 of the combustion cylinder portion 2 is closed to burn the combustion cylinder portion 2 from the lower opening 9 into the combustion cylinder portion 2. 2. The small solid fuel combustion apparatus according to claim 1 , wherein a closing flange portion for increasing an inflow amount of air is provided around the lower opening portion.

Also, the car unit 4 has at least a bottom and a peripheral wall portion from become according to any one of claims 1 to 3, characterized in that this one to the even provided with the large number of vent holes 5 configuration The present invention relates to a small solid fuel combustion apparatus.

Further, it relates to a combustion device of a small solid fuel according to any one of claims 1 to 4, characterized in that a partition plate 13 provided with the vent hole 5 in the cage portion 4 .

Further, in the small solid fuel combustion apparatus according to any one of claims 1 to 5 , the combustion air flows into the combustion cylinder portion 2 from the combustion air inflow portion 1 of the combustion chamber 8. A combustion apparatus for small solid fuel characterized by being provided in the combustion chamber 8 is related to a stove provided in the combustion chamber.

  Since the present invention is configured as described above, it is a combustion device that stacks small solid fuel such as wood pellets and burns it, but can burn slowly and over a long period of time, and its thermal power does not increase more than necessary and is wasted. The stove has an innovative small solid fuel combustion device and a small solid fuel combustion device provided in the combustion chamber that will surely have a healing effect due to the fact that the flame always rises up and burns and the flame is visible. It becomes.

  That is, the present invention has a configuration in which a large number of small solid fuels are accommodated in the cage portion and the small solid fuels are stacked and burned by being surrounded by the combustion cylinder portion, and between the combustion cylinder portion and the cage portion. Because it burns in contact with the combustion air that flows in through the combustion air circulation gap, it always burns slowly with a moderate heating power while raising a healing flame, and wastes small solid fuel. Combustion of small solid fuel that can be burned slowly over a long period of time without increasing, and that it is possible to obtain an appropriate amount of heat by this flame and the radiant heat of the combustion cylinder heated by this flame Thus, a stove provided with the apparatus and the combustion apparatus for small solid fuel in the combustion chamber can be realized.

Further, in this onset bright, since retrieve basket portion from the combustion chamber, small solid fuel storage and supply of the basket portion is facilitated, healing effect is even quiet a simple configuration as a configuration that does not use electricity, etc. Although it is configured to provide a high stove, the supply operation by hand is facilitated as described above, so that it becomes a more innovative small solid fuel combustion apparatus excellent in practicality.

Further, in this onset bright, the combustion apparatus of small solid fuel more excellent in practicality of the present invention can be easily realized by a simple configuration.

In the present invention, the visibility of the flame is enhanced by the notch for visual recognition, so that the healing effect by the flame is increased, and it is easy to grasp the combustion state, and the air inflow amount is adjusted by adjusting the degree of opening of the combustion air intake. It is possible to appropriately adjust the heating power by adjusting the heating power, and it becomes a more excellent small solid fuel combustion apparatus.

In the present invention, the combustion cylinder portion and the cage portion surrounded by the combustion cylinder portion are set on the fuel placement surface (for example, on the rooster) provided with the combustion air inflow portion of the combustion chamber. By setting the shape of the cylinder part and the shape of the cage part, it becomes an epoch-making small solid fuel combustion apparatus that can realize the present invention and is more practical.

Further, in the present invention, a small solid fuel combustion apparatus that is more practical and capable of dropping the clogged ash downward by swinging the cage portion as necessary.

In the invention of claim 2 Symbol placement, are aggregated from a wide range of combustion air inlet portion of the lower side flows a large amount of combustion air, further sneak the outer periphery of the basket portion, and ascended always up the flame Thus, the combustion apparatus for small solid fuel can be burned slowly with an appropriate heating power and the effects and advantages of the present invention can be exhibited more satisfactorily.

In the invention of claim 4 Symbol mounting, the combustion air is also through the combustion air gaps from the ventilation hole of the peripheral wall of the basket portion surrounded by the combustion cylinder unit not only vents the bottom inlet Thus, the combustion apparatus for the small solid fuel is more excellent, which exhibits the effects and advantages of the present invention, in which the flame that rises up and burns the flame that can always be expected to heal while slowly burning.

In the invention of claim 5 Symbol mounting, as from providing the partition plate, only it is possible to replenish in the sections partitioned by the partition plate during replenishment, thereby covering all the fire place during supply (Embers) A small solid fuel that can easily replenish a small amount of small solid fuel without replenishing at least a part of the fire and reliably re-ignite the small solid fuel replenishment part. It becomes a combustion device.

In the invention of claim 6 Symbol mounting, the stove having a combustion apparatus of the innovative small solid fuel exhibits the action and effect to the combustion chamber.

  Embodiments of the present invention that are considered suitable (how to carry out the invention) will be briefly described with reference to the drawings, illustrating the operation of the present invention.

  A large number of small solid fuels 3 such as wood pellets are accommodated in a cage portion 4 surrounded by the combustion cylinder portion 2, and the stacked small solid fuels 3 are burned in a state surrounded by the combustion cylinder portion 2. . At this time, the combustion air flows from the combustion air inflow portion 1 into the combustion cylinder portion 2 and further flows into the cage portion 4 through a large number of air holes 5, but the inner surface of the combustion cylinder portion 2 and the cage portion 4 Combustion air also flows from the periphery of the cage portion 4 through the air circulation gap 7 formed between the outer periphery of the cage portion 4 and through the ventilation holes 5 in the peripheral wall portion of the cage portion 4 to enter the cage portion 4. The small solid fuel 3 is burned while being in contact with the fuel 3.

  The small solid fuel 3 burns in contact with the combustion air that has circulated around the cage portion 4 as described above, and burns in a state surrounded by the combustion cylinder portion 2, so that the thermal power is larger than necessary. In addition, the flame is surely burned slowly over a long period of time, and a flame always stands above the combustion cylinder 2 (for example, from the upper opening 10 or from the basket 4 protruding from the upper opening 10). Ascending, it can be visually recognized, and the healing effect by the flame will be exhibited well.

  That is, if small solid fuel 3 is simply replenished little by little, not only power such as electric power is required, but even if it is gradually replenished into the flame, it burns immediately and burns slowly for a long time. Can not.

  In addition, if the small solid fuel 3 simply stacked is fed out and supplied from the rear by a screw conveyor, it is difficult to burn, and if the combustion air is forcibly sent by a fan or the like so as to burn well, it burns immediately.

  In other words, it is difficult to adjust and control so that small solid fuel 3 is burned in a piled state slowly for a long time so that it does not consume wastefully while raising a healing flame, and it is quiet without using power such as electric power. It is even more difficult to burn.

  In the present invention, power such as point power may be used, but even if the power is quietly raised without using any power to maximize the healing effect, the small solid fuel 3 can be stacked without burning at once. The small solid fuel 3 can be burned slowly over a long period of time with a moderate heating power while raising the flame, and with a simple structure, the flame can be slowly burned up and burned with low fuel consumption. The small solid fuel combustion apparatus and the small solid fuel combustion apparatus provided in the combustion chamber can be realized.

Further, the present invention has a configuration which is disposed a lower opening 9 in the floating state with respect to the combustion cylinder portion 2, for example, the size of the lower opening 9 further to provide a large lower portion 11 From the lower combustion air inflow portion 1 (for example, a plurality of air holes 1 on the rooster) by increasing the size or by providing a closing flange portion 22 around the lower opening 9 to close the other air holes 1. By increasing the inflow amount of the combustion air, for example, by concentrating the inflow amount of the combustion air, the operation / effect is further improved by making the inflow amount of the combustion air flow around the combustion air circulation gap 7 and flowing into the cage portion 4. the basket portion 4 feeding set and replenishment is facilitated by the freely Toshitako extraction, or even simply a large amount of replenishment by providing the partition plate 13 to the basket portion 4 of Tatoebako all by the partition plate 13 Instead of resupplying a part of the partition, Can supply without covering, the stove having a combustion apparatus of a combustion apparatus and small solid fuel excellent small solid fuel such as the easy re-ignition of the supply part to the combustion chamber.

  As described above, the present invention surrounds the cage portion 4 containing the small solid fuel 3 to be stacked and combusted with the combustion cylinder portion 2, and achieves the above-described effects by setting the shape of the combustion cylinder portion 2 and the shape of the cage portion 4. For example, by setting this combustion cylinder part 2 on the rooster and setting the cage part 4 in the combustion cylinder part 2, an epoch-making pellet stove that exhibits the above-mentioned actions and effects can be realized. A small solid fuel combustion device and a small solid fuel combustion device are provided in the combustion chamber.

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

  In the present embodiment, the present invention is applied to a pellet stove that burns by stacking wood pellets as small solid fuels 3 on the fuel mounting surface 14 (on the rooster) of the combustion chamber 8 of the stove in the cage 4. Thus, the combustion air inflow portion 1 is provided in a standing state on the fuel mounting surface 14 on which a plurality of air holes 1 are formed, and a cylindrical combustion cylinder portion 2 communicating with the air holes 1 is provided. It comprises a cage portion 4 formed of a net cage which is disposed in the combustion cylinder portion 2 and contains a large number of small solid fuels 3. The lower air hole is provided between the outer periphery of the cage portion 4 and the inner surface of the combustion cylinder portion 2. Combustion air circulation gaps 7 into which combustion air (primary air) flowing into the combustion cylinder part 2 from 1 is formed around the entire circumference of the cage part 4 are surrounded by the combustion cylinder part 2. A small amount of small solid fuel 3 stored in the basket 4 is placed on the fuel mounting surface 14. While flowing into the combustion cylinder part 2 from the air hole 1 and wrapping around from the combustion air circulation gap 7 and contacting the combustion air (primary air) flowing into the cage part 4 through the numerous air holes 5, It is configured to burn.

  Further, the combustion cylinder portion 2 is formed in a surrounding case shape having openings on the upper and lower sides, and the lower opening portion 9 of the combustion cylinder portion 2 is connected to the combustion chamber 8 of the stove as described above. Is provided in communication with the air hole 1 provided as the combustion air inflow portion 1, and the upper opening 10 of the combustion cylinder portion 2 is a small solid fuel stored in the cage portion 4. The flame at the time of combustion of 3 rises from here.

  In addition, the combustion cylinder portion 2 of the present embodiment is configured in an enclosing case shape having a rectangular tube shape or a cylindrical shape and having an opening portion that communicates vertically as described above, and the lower opening portion 9 of this combustion cylinder portion 2 The air hole 1 formed in the fuel mounting surface 14 is covered and communicated with it, but the opening area of the lower opening 9 is increased to increase the inflow amount of combustion air from the air hole 1. The combustion cylinder part 2 is configured by providing a large lower end part 11 which is wider than the main body part 2A of the combustion cylinder part 2 and lower in height than the main body part 2A in a continuous state at the lower part of the main body part 2A.

  That is, a fuel mounting surface provided with a plurality of air holes 1 (combustion air inflow portions 1) as a rooster in the upper part of the combustion air introduction chamber 18 into which outside air is sucked and introduced from the outside air inlet 17 of the stove capable of opening adjustment. 14 is provided at the bottom of the combustion chamber 8 and the combustion cylinder portion 2 is placed so that the air hole 1 is covered by the lower opening 9, but many air holes 1 on the fuel placement surface 14 are covered and a large amount of combustion is performed. In order to introduce the working air (primary air), a shallow dish-like wide lower end portion 11 is provided at the lower portion of the combustion cylinder portion 2 to form a wide lower opening portion 9, and a large number of lower opening portions 9 are formed in this wide portion. The combustion air inflow part 1 is covered so that a large amount of combustion air is collected and introduced.

  That is, in this embodiment, the lower opening 9 at the lower end of the main body portion 2A of the combustion cylinder portion 2 in which the approximately cage portion 4 is accommodated inside is enlarged, and the main body portion 2A is slightly formed in a shallow dish shape on the fuel mounting surface. A large lower end 11 is connected to the lower end of the main body 2A so as to be higher than 14 so that a large amount of combustion air flows into the combustion cylinder 2 and flows into the combustion cylinder 2. In addition, it is configured so as to satisfactorily go around the cage portion 4 through the combustion air circulation gap 7.

  In a second embodiment to be described later, a closing flange portion 22 is provided around the lower opening 9 of the main body 2A, and the closing opening 22 covers the portions other than the air holes 1 that the lower opening 9 covers and communicates. The combustion air flowing in from the combustion air introduction chamber 18 is collected and flows into the combustion cylinder portion 2 from the lower opening 9.

  That is, combustion air may be concentrated and inflow while covering as many air holes 1 as possible with the large lower end portion 11, or conversely, the air holes 1 other than the lower opening 9 are covered with the closing flange portion 22 and the combustion cylinder portion. You may make it flow in into 2.

  Further, the cage portion 4 is removably accommodated inside the combustion cylinder portion 2, but the combustion air flow gap 7 between the combustion cylinder portion 2 and the cage portion 4 is positioned so as to be always reliably formed and secured around the combustion cylinder portion 2. Positioning projections 19 are provided so as to avoid this.

  Further, a support portion 20 for mounting and supporting the cage portion 4 is provided so that the cage portion 4 is in a floating state with respect to the bottom portion of the combustion cylinder portion 2.

  Therefore, in this embodiment (first embodiment), when the combustion cylinder portion 2 is grounded on the fuel placement surface 14, the main body portion 2A is floated from the fuel placement surface 14 by the amount of the wide lower end portion 11, and In the present embodiment, the cage portion 4 is also supported in a floating state, and the wide lower end portion 11 is vast and has a little height, so that it communicates with many air holes 1 and combusts with the bottom portion of the cage portion 4 and the cage portion 4. The combustion air circulation gap 7 between the cylinder portion 2 and the combustion air circulation gap 7 communicates with the combustion air circulation gap 7. The small solid fuel 3 and the combustion air in the cage portion 4 are caged. Since the upper part in the part 4 is in good contact, the flame is well raised while being surrounded by the combustion cylinder part 2, and the flame is slowly raised for a long time to burn.

  That is, since the small solid fuel 3 can be combusted in a stacked state, it can continue to burn without being replenished for a long time, and it is surrounded by the combustion cylinder portion 2 so as not to burn at once. Combustion air is introduced well into the combustion air circulation gap 7 formed around the cage portion 4 surrounded by the combustion cylinder portion 2 and is always in contact with the upper portion of the small solid fuel 3 in the cage portion 4. Therefore, it is possible to realize a configuration in which the flame is burned slowly for a long time while always raising the flame well.

  Moreover, this combustion cylinder part 2 will be heated by combustion, and will generate radiant heat. For this reason, the strength is increased by selecting materials and forming beads.

  In addition, a notch 12 for visual recognition is formed by notching the upper edge of the combustion cylinder portion 2 downward so that the flame is always viewed from the front so that the flame and the remaining amount can be easily seen.

  The cage portion 4 has a mesh shape with a top opening formed of a bottom portion and a peripheral wall portion, and has a structure in which a large number of air holes 5 are provided by the mesh.

  Similarly, a net-like partition plate 13 provided with a large number of vent holes 5 is provided in the cage portion 4, and the small solid fuel 3 is introduced into a part of the section distinguished by the partition plate 13 from the inlet. It is provided as a replenishment charging section, and in other sections, it is provided as a non-charging section for securing fire that is not covered and not covered.

  In this embodiment, the partition plate 13 is vertically suspended at the center, the space between the partition plates 13 at the center is used as a replenishment charging section, and the left and right are defined as non-charging sections.

  In addition, a swing mechanism 16 is provided for swinging the cage portion 4 disposed in the combustion cylinder portion 2 by operating the swing operation portion 15.

  Specifically, the swing operation unit 15 protrudes from the combustion cylinder unit 2 and the swing operation unit 15 is pushed, pulled, or rotated to push the bottom of the basket unit 4 or hit the basket. The part 4 is swung so that the ash can be dropped downward without clogging.

  Further, in this embodiment, the heights of the combustion cylinder portion 2 and the cage portion 4 are set to be substantially the same, and the flame of the small solid fuel 3 that burns in the cage portion 4 stands from the upper opening of the combustion cylinder portion 2. The secondary combustion shielding plate 21 is provided on the upper portion of the gas, and secondary air is sent below the secondary combustion shielding plate 21 to cause secondary combustion below the secondary combustion shielding plate 21 to cause a chimney. It is configured to draw in from 23 and exhaust.

  1 to 5 show the first embodiment. The first embodiment is configured so that the combustion cylinder portion 2 and the flame can be visually recognized from a transparent window provided in front by a square stove. Combustion from the combustion air inflow portion 1 (air hole 1) provided in the fuel placement surface 14 through the combustion air introduction chamber 18 below the fuel placement surface 14 from the lower outside air intake port 17 into the combustion cylinder portion 2 The air (outside air) is configured to flow in as primary air.

  The combustion cylinder portion 2 and the cage portion 4 are configured as described above. However, the cage portion 4 and the combustion cylinder portion 2 are mounted on a fuel placement surface 14 provided with a slit-like combustion air inflow portion 1 so as to be replaceable. Each of them has a horizontal rectangular shape, and a flame rises from a wide horizontal range toward the upper secondary combustion shielding plate 21 so that it can be clearly seen from the transparent window on the front side by the notch 12 for visual recognition. It is configured.

  FIGS. 6 to 10 show a second embodiment, in which a combustion cylinder portion 2 provided with a closed flange portion 22 on a lattice-like fuel placement surface 14 is installed and oscillated by a cylindrical stove. The eccentric portion that is eccentric by the rotation of the swing operation portion 15 of the mechanism 16 and swings the cage portion 4 is configured as a support portion 20 that supports the cage portion 4 in a floating state.

  The present invention is not limited to the first embodiment and the second embodiment, and the specific configuration of each component can be designed as appropriate.

It is a description perspective view of a 1st Example. It is an explanation exploded perspective view of the 1st example. It is an explanatory perspective view of the state where the basket part of the first example was removed. It is a description sectional side view of a 1st Example. It is an explanation front sectional view of the first example. It is an explanation perspective view of the 2nd example. It is a description exploded perspective view of the 2nd example. It is an explanatory perspective view of the state where the basket part of the second example was removed. It is explanatory side sectional drawing of a 2nd Example. It is description front sectional drawing of a 2nd Example.

1 Combustion air inlet (air hole)
2 Combustion cylinder part 2A Main body part 3 Small solid fuel 4 Basket part 5 Vent hole 6 Net 7 Combustion air flow gap 8 Combustion chamber 9 Lower opening part
10 Upper opening
11 Vast lower end
12 Visual cutout
13 Partition plate
14 Fuel mounting surface
15 Swing operation part
22 Blocking flange

Claims (6)

A combustion cylinder portion standing in communication with the combustion air inflow portion on a fuel mounting surface on which the combustion air inflow portion is formed, and a basket that accommodates many small solid fuels disposed in the combustion cylinder portion The combustion cylinder part is formed in a surrounding case shape having openings on the top and bottom, and the lower opening part of the combustion cylinder part is provided when the combustion cylinder part is provided in an upright state in the combustion chamber. The combustion air inflow portion is configured to communicate with a plurality of air holes, and the upper opening portion of the combustion cylinder portion is configured to have a notch for visual recognition that is continuous with the upper opening portion. A configuration in which the amount of the small solid fuel in the cage portion and a flame at the time of combustion of the small solid fuel are easily visible, and the cage portion is formed using a net or a perforated plate having a large number of air holes. combustion tube portion in floating state from the ground lower portion of the combustion cylinder unit as well as Arranged and by operating the tilting operation portion pushes up the bottom of the basket portion or tapped configured to washable ash in swung the basket portion the basket portion downwards, said combustion cylinder and the cage outer periphery A combustion air flow gap is formed between the combustion air inflow portion and the combustion air flowing into the combustion cylinder portion between the combustion air inflow portion and the inner surface of the portion surrounded by the combustion cylinder portion. A large amount of the small solid fuel stored in the combustion air flows from the combustion air inflow portion into the combustion cylinder portion, circulates from the combustion air circulation gap, and flows into the cage portion through the numerous air holes. while in contact with, small, characterized in that configured to burn, the basket portion disposed in said combustion cylinder portion to be installed in the combustion chamber and provided removably with extraction freely or the combustion cylinder unit Combustion apparatus for solid fuels. A vastness that is wider than the main body portion of the combustion cylinder portion and lower in height than the main body portion, which increases the opening area of the lower opening portion of the combustion cylinder portion and increases the inflow amount of combustion air from the combustion air inflow portion. 2. The small solid fuel combustion apparatus according to claim 1, wherein the combustion cylinder portion is configured by providing a lower end portion in a continuous manner at a lower portion of the main body portion. A closed flange for closing the combustion air inflow portion other than the combustion air inflow portion communicating with the lower opening portion of the combustion cylinder portion to increase the inflow amount of the combustion air from the lower opening portion into the combustion cylinder portion The small solid fuel combustion apparatus according to claim 1 , wherein a portion is provided around the lower opening. The small solid fuel according to any one of claims 1 to 3 , wherein the cage part is composed of at least a bottom part and a peripheral wall part, and the plurality of air holes are provided in any of these parts. Combustion device. The small solid fuel combustion apparatus according to any one of claims 1 to 4 , wherein a partition plate provided with the air holes is provided in the cage. The combustion apparatus for small solid fuel according to any one of claims 1 to 5 is provided in a combustion chamber so that combustion air flows into the combustion cylinder portion from the combustion air inflow portion of the combustion chamber. A stove provided with a combustion device for small solid fuel in a combustion chamber.

Images