WO2022185392A1 - Solid fuel combustion device - Google Patents

Abstract

A solid fuel combustion device in which a plurality of solid fuels are supplied to a combustion unit to obtain combustion heat by combustion, the combustion unit comprising: a first combustion chamber for burning solid fuel; a supply unit for supplying the plurality of solid fuels to the first combustion chamber; a turntable unit that forms the lower surface of the first combustion chamber and swirls, on the lower surface, the plurality of solid fuels supplied from the supply unit; and a stirring unit that stirs, on the turntable unit, the solid fuels accumulated in the turntable unit.

Description

Combustion device for solid fuel

The present invention relates to a solid fuel combustion apparatus, and more particularly to a solid fuel combustion apparatus for obtaining heat by burning combustible solid waste as fuel.

Combustible solid waste such as resin (plastic) has been used as a raw material for RPF (refused paper and plastics densified fuel). Even waste materials can be easily burned in the calciner to obtain the same amount of heat as existing coke or the like. In addition, since the waste is treated as solid fuel, the overall amount of carbon dioxide generated is expected to be reduced compared to the case where fuel such as heavy oil or natural gas is newly burned.

When solid fuel such as RPF is burned in a firing device, the solid fuel has poor fluidity in the device (burning furnace), and ash is also produced after firing the solid fuel. Therefore, if the solid fuel is simply put into the calcining device, the combustion efficiency of the solid fuel in the calcining device (calcining furnace) decreases. In addition, the calcining apparatus cannot be safely operated unless the calcined ash is properly removed.

Therefore, a calcining device that incorporates improvements related to the supply of solid fuel and the removal of calcined ash has been proposed (for example, Patent Documents 1 and 2). However, according to the calcining apparatuses described in each patent document, the supply of solid fuel to the inside of the calcining apparatus and the removal of calcined ash after calcining the solid fuel are not always sufficient, and further improvements have been desired. In addition, when the mechanism of the calcining device becomes complicated, the mechanism for supplying the solid fuel is exposed to heat when the solid fuel is calcined in the calcining device, and the durability of the device tends to decrease. For this reason, improvement of the current baking equipment has not progressed.

JP 2014-211255 A JP 2008-261527 A

As a result of intensive studies, the inventor obtained a structure that is effective for supplying solid fuel that avoids heat exposure during firing, ensuring movement of solid fuel inside the firing device, and removing fired ash, and developed a new solid fuel. Completed the combustion device of

The present invention has been made in view of the above points, and is a solid fuel combustion apparatus that uses combustible solid waste such as resin (plastic) as a solid fuel. To provide a solid fuel combustion apparatus that avoids damage due to exposure and facilitates movement of the solid fuel inside the burning apparatus.

That is, the solid fuel combustion apparatus of the embodiment is a solid fuel combustion apparatus that supplies a plurality of solid fuels to a combustion unit and obtains combustion heat by burning them, and the combustion unit is a first combustion unit that burns the solid fuels. a chamber, a supply section for supplying a plurality of solid fuels to the first combustion chamber, and a turntable forming a lower surface portion of the first combustion chamber and rotating the plurality of solid fuels supplied from the supply section on the lower surface portion. and a stirring section for stirring the solid fuel accumulated in the turntable section on the turntable section.

Further, the first combustion chamber may be cylindrical, and the supply section may supply a plurality of solid fuels to the peripheral end portion of the turntable section.

Further, the turntable may be formed with a plurality of holes through which the combustion ash of the solid fuel falls, and a combustion ash discharge section may be provided below the turntable.

Furthermore, a dust collection section may be provided at the bottom of the turntable section, and the dust collection section may collect combustion ash that has fallen from the turntable section.

Furthermore, a second combustion chamber may be provided above the first combustion chamber for raising flames generated by burning a plurality of solid fuels.

Furthermore, the second combustion chamber may be provided with an air supply section for supplying air for combustion of a plurality of solid fuels.

Furthermore, the stirring section may be provided with a stirring blade or a long plate-like object to move the solid fuel accumulated in the turntable section to the vicinity of the center of the turntable section.

Further, a combustion smoke photographing unit for photographing combustion smoke generated when a plurality of solid fuels are burned, and a fuel amount control unit for controlling the amount of solid fuel supplied from the supply unit to the first combustion chamber are provided. The unit may determine the amount of combustion of the plurality of solid fuels from the color of the combustion smoke photographed by the combustion smoke photographing unit, and control the amounts of the plurality of solid fuels supplied from the supply unit to the first combustion chamber.

Further, a combustion smoke photographing unit for photographing combustion smoke generated when a plurality of solid fuels are burned, and an air amount control unit for controlling the amount of air supplied from the air supply unit to the second combustion chamber are provided. may determine the amount of combustion of a plurality of solid fuels from the color of the combustion smoke photographed by the combustion smoke photographing section, and control the amount of air supplied from the air supply section to the second combustion chamber.

A solid fuel combustion apparatus of the present invention is a solid fuel combustion apparatus that supplies a plurality of solid fuels to a combustion unit to obtain combustion heat by combustion, and the combustion unit includes a first combustion chamber that burns the solid fuels, a supply portion for supplying a plurality of solid fuels to the first combustion chamber; a turntable portion forming a lower surface portion of the first combustion chamber and rotating the plurality of solid fuels supplied from the supply portion on the lower surface portion; Since it is equipped with a stirring part for stirring the solid fuel accumulated in the turntable part on the turntable part, the part related to the supply of solid fuel made of combustible solid waste is prevented from being damaged by heat exposure during firing. can be avoided.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an overall schematic side view of a solid fuel combustion apparatus according to an embodiment; It is a top view of a combustion part. It is a 1st side schematic diagram of a combustion part. It is a 2nd side schematic diagram of a combustion part. 4 is a partially exploded view of the turntable section; FIG. FIG. 4 is a plan view of a second combustion chamber; 1 is a schematic side view of a solid fuel combustion apparatus showing a swirling flow generated by combustion; FIG. FIG. 2 is a schematic block diagram showing a control section of a solid fuel combustion apparatus; 4 is a flow chart showing the control flow of the solid fuel combustion device.

The solid fuel combustion apparatus of the embodiment uses a combustible material called RPF (Refused paper and plastics densified fuel) obtained by compressing solid combustible waste such as resin (plastic) and paper as a solid fuel. use. The solid fuel is put into the combustion device and burned in the combustion device to generate combustion heat. Combustible gas is generated from the solid fuel by heating the solid fuel rather than burning the solid fuel itself. Then, the combustible gas is ignited to generate a flame, which is recovered as combustion heat. The generated combustion heat is supplied to a heat exchanger such as a boiler for generating steam, and the combustion heat itself is used for heating, drying, heating, and the like. Thus, the solid fuel combustion device of the embodiment is a device for obtaining combustion heat from the RPF solid fuel.

In particular, RPF's solid fuel has good combustion efficiency because it uses resin (plastic), paper, etc., which are waste materials, as its main raw materials. Furthermore, the solid fuel combustion apparatus of the embodiment can process combustible waste. Therefore, it is expected that the amount of carbon dioxide generated will be reduced when generating heat, compared to the case where fuel such as heavy oil or natural gas is newly burned. Obviously, a number of solid fuels are introduced into the combustor. Therefore, even if it is simply described as a solid fuel, it means a plurality (a plurality of pieces, a plurality of amounts) of solid fuels.

FIG. 1 is an overall schematic side view of a solid fuel combustion apparatus 1 according to an embodiment. The solid fuel combustion apparatus 1 includes a first combustion chamber 11, which is the main part of a combustion section 10 and into which solid fuel is introduced and burned. Immediately above the first combustion chamber 11, a second combustion chamber 52, a third combustion chamber 53, and a connection chamber 51 are provided in this order. The second combustion chamber 52 and the third combustion chamber 53 are spaces for amplifying the flame generated by burning the solid fuel in the first combustion chamber 11 to increase the amount of combustion heat. In the solid fuel combustion apparatus 1 of the embodiment, the first combustion chamber 11, the second combustion chamber 52, and the third combustion chamber 53 are all cylindrical. This is because, as will be described later, it is convenient for the heat flow to rise while swirling. The connection chamber 51 is a space for connecting the generated combustion heat to a boiler heat exchanger or heat transfer piping (both not shown). The third combustion chamber 53 may be omitted depending on the scale of the solid fuel combustion apparatus 1 itself.

The combustion unit 10 of the embodiment mainly includes a first combustion chamber 11 that burns the solid fuel that has been brought in, a supply unit 12 that supplies the solid fuel to the first combustion chamber 11, and a lower surface portion 17 of the first combustion chamber 11. A turntable portion 20 for forming and rotating the lower surface portion 17, and a stirring portion 30 for stirring the carried-in solid fuel are provided.

The turntable portion 20 is formed with a hole portion 22 (see FIG. 5) through which the burned ash of the solid fuel falls. A dust collection chamber 18 is formed below the turntable portion 20 installed on the lower surface portion 17 of the first combustion chamber 11 .

A burnt ash discharge section 42 is provided in the dust collection chamber 18 below the turntable section 20 . The calcined ash that has fallen into the dust collection chamber 18 is conveyed to the calcined ash recovery box 45 by the calcined ash discharge unit 42 .

　In the solid fuel combustion apparatus 1 shown in FIG. The turntable portion 20 is connected to a turntable shaft portion 26 and driven by a turning motor M4. The baked ash discharge part 42 is driven by a discharge motor M3.

The configuration of each part will be explained by adding a plan view of the combustion section 10 in FIG. 2 to the schematic side view of the solid fuel combustion apparatus 1 in FIG. The supply unit 12 includes a supply rotation shaft 13 and a supply blade 14 spirally attached to the supply rotation shaft 13 . The feed blade 14 is a helical propeller called an Archimedean screw, an Archimedean spiral, or the like. The supply rotary shaft 13 and the supply blades 14 are rotated by the supply motor M1. The RPF solid fuel is introduced into the supply section 12 from the supply port 15 (hopper). Then, when the supply motor M1 is driven to rotate the supply rotating shaft 13 and the supply vanes 14, the solid fuel moves from the position of the supply port 15 to the tip of the supply part 12 through the supply vanes 14. drops into the first combustion chamber 11 from the

As can be understood from FIG. 2, the tip of the supply portion 12 does not enter deeply into the first combustion chamber 11 and stays substantially on the inner wall surface. Therefore, the tip of the supply portion 12 is positioned directly above the peripheral end portion 21 of the turntable portion 20 . Since the tip of the supply portion 12 does not enter deeply into the first combustion chamber 11, the supply portion 12 (the supply rotary shaft 13 and the supply blades 14) is less likely to be thermally damaged, and the frequency of component replacement in the combustion device 1 is reduced. do. The turntable section 20 shown in FIG. 2 can be disassembled for replacement. Therefore, the linear portion shown on the turntable portion 20 indicates the cut-off portion.

As can be understood from the schematic side view of FIG. 3, if the solid fuel R continues to be dropped from the position of the tip of the supply section 12, it will be deposited on the peripheral end portion 21 of the turntable section 20 in the first combustion chamber 11. Become. Therefore, it is necessary to move the unevenness of the solid fuel R deposited on the upper surface of the turntable portion 20 . Therefore, the solid fuel combustion apparatus 1 is provided with the stirring unit 30 .

The stirring section 30 includes a stirring rotating shaft 31 and a stirring blade 32 spirally attached to the stirring rotating shaft 31 . The stirring blade 32 is a helical propeller called an Archimedes screw, an Archimedes spiral, or the like. The stirring rotary shaft 31 and the stirring blade 32 are rotated by the stirring motor M2. When the solid fuel R is supplied from the supply portion 12 , the solid fuel R is unevenly accumulated in a portion of the lower surface portion 17 of the first combustion chamber 11 . Even if the turntable portion 20 rotates, the deposits are still deposited on the peripheral end portion 21 of the turntable portion 20 . Therefore, the solid fuel R deposited on the peripheral end portion 21 of the turntable portion 20 is moved to the vicinity of the center of the turntable portion 20 through the stirring blades 32 of the stirring portion 30 .

As shown in FIG. 1, the stirring blade 32 of the stirring section 30 is installed with a small gap upward from the turntable section 20 arranged on the lower surface portion 17 of the first combustion chamber 11 . 2, the stirring blade 32 of the stirring section 30 extends from the peripheral end portion 21 of the turntable section 20 toward the vicinity of the center of the turntable section 20. As shown in FIG. As understood from the schematic side view of FIG. 4, the solid fuel R scraped by the stirring blades 32 of the stirring section 30 is moved from the peripheral edge 21 of the turntable section 20 to the vicinity of the center. At the same time, the turntable portion 20 itself also revolves on the lower surface portion 17 of the first combustion chamber 11 .

Therefore, regardless of where the solid fuel is accumulated on the peripheral end portion 21 of the turntable portion 20 , the solid fuel is constantly removed from the turntable portion 20 through the operation of the stirring portion 30 and the rotation of the turntable portion 20 . The accumulation (deposition) of the solid fuel changes in a mountain shape from the peripheral edge 21 toward the center (see the change in position of the solid fuel from FIG. 3 to FIG. 4).

The position of the stirring section 30 is in the direction of the center of the turntable section 20 from the viewpoint of exhibiting the performance of stirring. In this case, the stirring rotary shaft 31 and the stirring blade 32 of the stirring section 30 are thermally exposed to the combustion heat (thermal power) of the solid fuel. However, the combustion heat of the solid fuel does not become high enough to damage the stirring section 30 at the position near the peripheral end 21 of the turntable section 20 . Rather, the temperature rises toward the upper portion of the first combustion chamber 11 and further upwards. Therefore, the stirring section 30 arranged near the turntable section 20 is less affected by heat damage due to combustion of the solid fuel.

In addition, the stirring unit 30 allows the solid fuel to move even when the solid fuel is burned. Therefore, the unburned solid fuel is moved on the turntable section 20 by the stirring section 30 . Then, the unburned solid fuel can be completely combusted at the moved place. For this reason as well, the provision of the stirring section 30 contributes to improving the combustion efficiency of the solid fuel carried into the first combustion chamber 11 .

With respect to the stirring blade 32 attached to the stirring rotating shaft 31 of the stirring section 30, the solid fuel is moved to the vicinity of the center of the turntable section 20 as described above in the forward rotation direction. Here, the stirring unit 30 can reverse the rotation direction of the stirring blades 32 (reverse rotation). When the stirring blade 32 is reversely rotated, the burnt ash (clinker or the like) remaining on the turntable portion 20, which is the unburned residue of the solid fuel, is scraped out and discharged from the combustion portion 10 (first combustion chamber 11).

As another form of the stirring part 30, a long plate-shaped object (not shown) can be adopted as a substitute for the stirring rotating shaft 31 and the stirring blade 32. In addition, it is good also as a long rod-shaped object. The elongated plate-like object is inserted into the first combustion chamber 11 from the same position as the stirring section 30 of the first combustion chamber 11 . The position, angle, and length of insertion of the long plate-like object into the first combustion chamber 11 are appropriately adjusted. Also by making the stirring part 30 a long plate-like object, the solid fuel is constantly drawn from the peripheral edge part 21 of the turntable part 20 to the vicinity of the center through the rotation of the turntable part 20 .

As understood from the schematic side view of FIG. 1 (schematic side views of FIGS. 3 and 4), a dust collection chamber 18 is formed below the lower surface portion 17 (turntable portion 20) of the first combustion chamber 11. be. Here, the partially exploded view of FIG. 5 shows the turntable section 20 by cutting it in half. The inside of the dust collection chamber 18 is shown.

A large number of holes 22 are formed in the plate surface of the turntable section 20 . The solid fuel R used (see FIGS. 3 and 4) is an irregular mass of approximately 3 to 7 cm. Burned ash As is left over after the solid fuel is burned in the first combustion chamber 11 . Therefore, the burned ash As passes through the hole portion 22 and falls into the dust collection chamber 18 directly below the turntable portion 20 . The shape of the hole 22 may be round, square, or elongated slit shape. Moreover, the arrangement of the hole portions 22 is appropriate, such as radially from the center of the turntable portion 20, arc-shaped, or the like.

A dust collection section 40 is connected to the turntable shaft section 26 at the bottom of the turntable section 20 (see FIG. 5). The dust collection part 40 is a plate-like member that contacts the bottom surface of the dust collection chamber 18, and has a length corresponding to the radius of the inner bottom surface of the dust collection chamber 18 (see FIGS. 1, 3, and 4). The burnt ash As that has fallen into the dust collection chamber 18 is collected over the entire bottom surface of the dust collection chamber 18 by the dust collection section 40 that rotates in conjunction with the rotation of the turntable section 20 (turntable shaft section 26) by the rotation motor M4. be done. Then, the collected calcined ash As is guided from the dust collection port 41 to the calcined ash discharge portion 42 .

As shown in FIGS. 1, 3, and 4, the burnt ash discharge part 42 is equipped with discharge blades 43 spirally attached to a discharge rotating shaft 44. As shown in FIG. The discharge blade 43 is a helical propeller called an Archimedes screw, an Archimedes spiral, or the like. The discharge rotating shaft 44 and the discharge blade 43 are rotated by the discharge motor M3. Therefore, the calcined ash As that has fallen from the dust collection port 41 and entered the calcined ash discharge part 42 is efficiently discharged from the calcined ash discharge port 46 to the calcined ash recovery box 45 through the discharge blade 43 .

According to the solid fuel combustion apparatus 1 of the embodiment, the turntable section 20 is rotatably driven at a rotational speed of one rotation per minute. Of course, the rotation speed is appropriate depending on the size of the device itself. Rotational driving of the turntable portion 20 is performed when the solid fuel is brought in and formed into a mountain shape on the turntable portion 20, and when burned ash is removed after combustion. Of course, when the solid fuel is continuously carried into the first combustion chamber 11, the turntable portion 20 is always driven to rotate.

As shown in FIG. 1 , the solid fuel combustion apparatus 1 of the embodiment includes a second combustion chamber 52 and a third combustion chamber 53 above the first combustion chamber 11 . During combustion of the combustible gas generated from the heated solid fuel, air is supplied from the outside of the combustion device 1 in order to increase its combustion efficiency. Specifically, as shown in the plan view of FIG. 6, the second combustion chamber 52 is provided with an air supply section. In the embodiment, a first air supply 55 and a second air supply 56 are provided. Air enters the second combustion chamber 52 from both the first air supply 55 and the second air supply 56 . Triggered by the wind pressure of the incoming air, a swirling flame flow (flame swirl, heat flow) is generated inside the second combustion chamber 52 including the first combustion chamber 11, as indicated by the arc-shaped arrows in FIG.

A swirling flow of flame generated by burning solid fuel (combustible gas) spreads to the first combustion chamber 11 and the second combustion chamber 52 . As shown in the schematic side view of FIG. 7, the flame swirling flow indicated by the arc-shaped arrows rises vertically through the first combustion chamber 11, the second combustion chamber 52, and the third combustion chamber 53. As shown in FIG. In this way, the flame grows from the solid fuel accumulated in the first combustion chamber 11 to the height reaching the second combustion chamber 52 and the third combustion chamber 53, and a swirling flow of flame is generated. The temperature on the upper side of the flame becomes high compared to the size of the rising flame. Therefore, in order to increase the combustion heat that can be obtained from the solid fuel per weight, it is desirable to provide the second combustion chamber 52 and the third combustion chamber 53 above the first combustion chamber 11 .

From a series of descriptions and illustrations, the efficient combustion of solid fuel in the solid fuel combustion apparatus 1 of the embodiment has been described. A mechanism for controlling combustion conditions in the solid fuel combustion apparatus 1 of the embodiment will now be described. In the example of the solid fuel combustion apparatus 1 of the embodiment, the color of combustion smoke (black, white, colorless, etc.) generated when the solid fuel is burned is identified, and the quality of the combustion state of the solid fuel (complete combustion or bad) is determined. complete combustion) is determined, and the amount of solid fuel supplied and the amount of air supplied are controlled.

FIG. 8 is a block diagram showing a schematic configuration of the control unit 100 mounted in the solid fuel combustion apparatus 1 of the embodiment. The configuration of the control unit 100 includes hardware such as a microcomputer necessary for receiving various signals, executing calculations, storing, controlling operations, etc., and includes a CPU 101, a ROM 102, a RAM 103, a storage unit 104, an I/O 105 (input/output interface) etc. are implemented.

When each functional unit of the control unit 100 (computer) in FIG. 8 is implemented by software, the control unit 100 is implemented by executing the instructions of a program, which is software that implements each function. A "non-temporary tangible medium" such as a CD, a DVD, a semiconductor memory, a programmable logic circuit, or the like can be used as a recording medium for storing this program. Also, this program may be supplied to the control unit 100 of the solid fuel combustion apparatus 1 via any transmission medium (communication network, broadcast wave, etc.) capable of transmitting the program.

The storage unit 104 of the control unit 100 is a known storage device such as HDD or SSD. Storage unit 104 may be an external server (not shown). The storage unit 104 stores various data, information, programs, various data necessary for executing the programs, and the like. Also, the functional unit that executes various calculations, calculations, etc. is a computing element such as the CPU 101 . In addition, an input device (not shown) such as a keyboard and a mouse, a display unit (display device such as a display not shown), an output device for outputting data, etc. are properly connected to the I/O 105 of the control unit 100. may

The combustion smoke imaging unit 110 is a known CCD camera, CMOS image sensor, or the like. The color (black, white, colorless, etc.) of combustion smoke K generated when the solid fuel is burned in the first combustion chamber 11 is photographed. Information about the color of the combustion smoke is then sent to the control unit 100 .

The fuel amount control unit is the supply motor M1 of the stirring unit 30 in FIG. The amount of solid fuel supplied from the stirring unit 30 to the first combustion chamber 11 is increased or decreased by increasing or decreasing the rotational speeds of the supply rotating shaft 13 and the supply blades 14 of the supply motor M1.

The air amount control unit is the air supplier F in FIG. The air supply device F is a known blower or the like, and supplies air (oxygen) to the first air supply section 55 and the second air supply section 56 in the embodiment. The indoor oxygen content of the first combustion chamber 11 increases or decreases by increasing or decreasing the amount of air supplied from the air supplier F to the second combustion chamber 52 .

As shown, the combustion smoke imaging unit 110, the supply motor M1 (fuel amount control unit), and the air supply device F (air amount control unit) are connected to the I/O 105 and controlled by the CPU 101 of the control unit 100.

Using the flowchart in FIG. 9, the state of controlling the combustion state of solid fuel will be explained. First, combustion smoke generated when solid fuel is burned is photographed by the combustion smoke photographing unit 110 (S101). Information about the captured combustion smoke is transmitted to the control unit 100, and the amount of solid fuel burned is determined. That is, smoke color determination is performed to determine whether the smoke corresponds to any of the colors of combustion smoke (for example, black, white, colorless, etc.) (S102). For example, by comparing a predefined smoke color to a reference color, it is determined whether the captured combustion smoke is more black in color. As a result of the smoke color determination, if the color of the combustion smoke is relatively white or colorless, it can be determined that the combustion state of the solid fuel is approximately complete combustion. In this case, the current amount of solid fuel supplied and the amount of air supplied are maintained as they are. Therefore, the supply motor M1 (fuel amount control section) and the air supply device F (air amount control section) are instructed to maintain the status quo, and the process ends as no change.

On the other hand, as a result of smoke color determination, if the color of the combustion smoke is relatively black or dark gray, there is a high possibility that the combustion state of the solid fuel is incomplete combustion. In this case, it is necessary to shift to complete combustion by changing the current supply amount of solid fuel and the amount of supplied air. Therefore, a change instruction is issued to the supply motor M1 (fuel amount control unit) and the air supply device F (air amount control unit) (S104). Thus, the process ends. After that, photographing of combustion smoke and determination of smoke color are performed again, and the combustion state of the solid fuel is confirmed.

Specifically, the supply motor M1 (fuel amount control unit) is controlled to decrease the amount of solid fuel supplied from the supply unit 12 to the first combustion chamber 11 . Also, the air supply unit F (air amount control unit) is controlled to increase the amount of air supplied from the air supply units (the first air supply unit 55 and the second air supply unit 56) to the second combustion chamber 52. do. Of course, control to increase the amount of solid fuel or control to decrease the amount of air can also be performed. Both the supply motor M1 (fuel amount control unit) and the air supply device F (air amount control unit) may be controlled simultaneously.

Furthermore, even when increasing or decreasing the amount of combustion heat required when the solid fuel combustion apparatus 1 is in operation, the supply motor M1 (fuel amount control unit) or the air supply unit F (air amount control unit) or both.

1 Combustion Device for Solid Fuel 10 Combustion Section 11 First Combustion Chamber 12 Supply Section 13 Supply Rotating Shaft 14 Supply Blade 17 Lower Surface Part 18 Dust Collection Chamber 20 Turntable Section 30 Stirring Section 31 Stirring Rotating Axis 32 Stirring Blade 40 Dust Collecting Section 41 Dust collection port 42 Burned ash discharge unit 43 Discharge blade 44 Discharge rotating shaft 45 Burned ash collection box 51 Connection chamber 52 Second combustion chamber 53 Third combustion chamber M1 Supply motor (fuel amount control unit)
M2 Stirring motor M3 Ejection motor M4 Swivel motor R Solid fuel As Burned ash 100 Control unit (computer)
101 CPUs
102 ROMs
103 RAM
104 storage unit 105 input/output interface 110 combustion smoke imaging unit F air supplier K combustion smoke

Claims (9)

A solid fuel combustion apparatus for supplying a plurality of solid fuels to a combustion unit to obtain combustion heat by combustion,
The combustion part is
a first combustion chamber that burns the plurality of solid fuels;
a supply unit for supplying the plurality of solid fuels to the first combustion chamber;
a turntable portion forming a lower surface portion of the first combustion chamber and rotating the plurality of solid fuels supplied from the supply portion on the lower surface portion;
A solid fuel combustion apparatus comprising: a stirring section for stirring the plurality of solid fuels accumulated in the turntable section on the turntable section. The solid fuel combustion apparatus according to claim 1, wherein the first combustion chamber has a cylindrical shape, and the supply section supplies the plurality of solid fuels to the peripheral end portion of the turntable section. A hole portion is formed in the turntable portion through which the combustion ash of the plurality of solid fuels falls,
2. The solid fuel combustion apparatus of claim 1, further comprising a burnt ash discharge part below the turntable part. A dust collector is provided at the bottom of the turntable,
4. The solid fuel combustion apparatus according to claim 3, wherein said dust collector collects said combustion ash that has fallen from said turntable. The solid fuel combustion apparatus according to claim 1, wherein a second combustion chamber is provided above the first combustion chamber so that flames generated by combustion of the plurality of solid fuels rise. The solid fuel combustion apparatus according to claim 5, wherein the second combustion chamber is provided with an air supply unit for supplying air for combustion of the plurality of solid fuels. The solid fuel combustion apparatus according to claim 1, wherein the stirring section includes a stirring blade or a long plate-like object, and moves the solid fuel accumulated in the turntable section to the vicinity of the center of the turntable section. a combustion smoke imaging unit for imaging combustion smoke generated when the plurality of solid fuels are burned;
a fuel amount control unit configured to control the amount of the plurality of solid fuels supplied from the supply unit to the first combustion chamber;
The fuel amount control unit determines the amount of combustion of the plurality of solid fuels from the color of the combustion smoke photographed by the combustion smoke photographing unit, and supplies the plurality of solid fuels from the supply unit to the first combustion chamber. 2. The solid fuel combustion apparatus according to claim 1, wherein the amount of is controlled. a combustion smoke imaging unit for imaging combustion smoke generated when the plurality of solid fuels are burned;
an air amount control unit for controlling the amount of air supplied from the air supply unit to the second combustion chamber,
The air amount control unit determines the amount of combustion of the plurality of solid fuels from the color of the combustion smoke photographed by the combustion smoke photographing unit, and determines the amount of air supplied from the air supply unit to the second combustion chamber. 7. The solid fuel combustion apparatus according to claim 6.

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