TWI828070B - The combustion device of solid fuel - Google Patents

Abstract

A solid fuel combustion device that supplies multiple solid fuels to the combustion unit and obtains combustion heat by combustion. The combustion unit comprising a first combustion chamber that burns solid fuel, a supply unit for supplying multiple solid fuels to the first combustion chamber, a turntable unit that forms the lower surface portion of the first combustion chamber and swirls multiple solid fuels supplied from the supply unit on the lower surface portion, and a stirring unit that stirs the solid fuel accumulated in the turntable unit on the turntable unit.

Description

Solid fuel combustion device

The present invention relates to a solid fuel combustion device, in particular to a solid fuel combustion device that burns combustible solid waste as fuel to obtain heat.

Combustible solid waste such as resin (plastic) has been used as raw material for RPF (Refuse derived paper and plastics densified Fuel). Even waste can be easily burned in a burning device, and the same amount of heat as existing coal char can be obtained. In addition, since the waste is treated as solid fuel, overall carbon dioxide production is expected to be reduced compared to the case of newly burned fuels such as heavy oil and natural gas.

When a solid fuel such as RPF is burned in a burning device, the solid fuel has poor fluidity in the device (burning furnace), and burnt ash is produced after the solid fuel is burned. Therefore, simply putting the solid fuel into the calcining device reduces the combustion efficiency of the solid fuel in the calcining device (calcining furnace). Additionally, the firing unit cannot be operated safely unless the firing ash is properly removed.

Therefore, a sintering device that improves the supply of solid fuel and the removal of sintering ash has been proposed (for example, Patent Documents 1 and 2, etc.). However, in the sintering devices described in each patent document, supplying the solid fuel into the sintering device and removing the burned ash after burning the solid fuel are not always sufficient, and further improvements are required. In addition, when the mechanism of the burning device becomes complicated, a mechanism for supplying the solid fuel and the like are exposed to heat when the solid fuel is burned in the burning device, and the durability of the device is likely to decrease. Therefore, there has been no progress in improving the current firing apparatus. [Patent technical documents] 〔Patent documents〕

[Patent Document 1] Japanese Patent Application Laid-Open No. 2014-211255 [Patent Document 2] Japanese Patent Application Laid-Open No. 2008-261527

[Problem to be solved by the invention]

As a result of diligent research, the inventor has completed a new solid fuel burning device, in which an effective structure is obtained that can avoid the supply of solid fuel exposed to heat during the burning process, can ensure the movement of the solid fuel within the burning device, and can Remove the ashes.

The present invention has been made in view of the above situation, and provides a solid fuel combustion device that uses combustible solid waste such as resin (plastic) as solid fuel to prevent components related to the supply of solid fuel from burning. It prevents damage due to heat exposure during the combustion process and enables good movement of solid fuel within the combustion device. [a means to solve problems]

That is, the solid fuel combustion device of this embodiment is a combustion device that supplies a plurality of solid fuels to a combustion part and obtains combustion heat from the solid fuel by burning it, wherein the combustion part is provided with a first combustion chamber for burning a plurality of solid fuels. ; and a supply part that supplies a plurality of solid fuels to the first combustion chamber; and a turntable part that forms the bottom of the first combustion chamber, and rotates the plurality of solid fuels supplied from the supply part at the bottom; and a stirring part that accumulates on the turntable A variety of solid fuels in the upper part are stirred above the turntable part.

In addition, the first combustion chamber may be cylindrical, and the supply part may supply a plurality of solid fuels to the edge part of the turntable part.

In addition, a hole for dropping combustion ash of various solid fuels may be formed in the turntable part, and a combustion ash discharge part may be provided below the turntable part.

In addition, a dust collecting part is provided at the lower part of the turntable part, and the dust collecting part can collect the combustion ashes dropped from the turntable part.

In addition, a second combustion chamber may be provided on the upper part of the first combustion chamber to allow flames generated by the combustion of multiple solid fuels to rise.

In addition, the second combustion chamber may be provided with an air supply part to supply air for burning a plurality of solid fuels.

In addition, the stirring part may be provided with stirring blades or long plate-shaped objects to move the solid fuel accumulated in the turntable part to near the center of the turntable part.

In addition, a combustion smoke photographing unit may be provided to photograph combustion smoke generated during the combustion of a plurality of solid fuels; and a fuel quantity control unit may be provided to control the quantity of the plurality of solid fuels supplied from the supply unit to the first combustion chamber; and the fuel quantity control unit The combustion amounts of the plurality of solid fuels are determined based on the color of the combustion smoke photographed by the combustion smoke imaging unit, and the amounts of the plurality of solid fuels supplied from the supply unit to the first combustion chamber are controlled.

In addition, a combustion smoke photographing unit may be provided to photograph combustion smoke generated during the combustion of various solid fuels; and an air volume control unit may be provided to control the amount of air supplied from the air supply unit to the second combustion chamber; and the air volume control unit may be provided according to The color of the combustion smoke captured by the combustion smoke imaging unit is used to determine the combustion amount of various solid fuels, and the amount of air supplied from the air supply unit to the second combustion chamber is controlled. [Effects of the invention]

The solid fuel combustion device of the present invention is a combustion device that supplies a plurality of solid fuels to a combustion part and obtains combustion heat from the solid fuel by burning it. The combustion part is provided with: a first combustion chamber for burning a plurality of solid fuels; and a supply part. , supplying a plurality of solid fuels to the first combustion chamber; and a turntable portion forming a bottom of the first combustion chamber, and rotating the plurality of solid fuels supplied from the supply portion at the bottom; and a stirring portion, causing the plurality of solid fuels accumulated in the turntable portion to rotate The fuel is stirred above the turntable section, so it is possible to prevent components related to the supply of solid fuel consisting of combustible solid waste from being damaged by heat exposure during the firing process.

The solid fuel combustion device of this embodiment uses a combustible material called RPF (Refuse driven paper and plastics denied Fuel) obtained by compressing solid combustible waste such as resin (plastic) and paper as solid fuel. The solid fuel is charged into the combustion device and burned in the combustion device to generate combustion heat. Rather than burning the solid fuel itself, the solid fuel is heated to produce flammable gases from the solid fuel. The flammable gas is ignited to produce a flame and recovered as combustion heat. The generated combustion heat is supplied to a heat exchanger for generating steam such as a boiler, and the combustion heat itself is used for heating, drying, heating, etc. As described above, the solid fuel combustion device of this embodiment is a device that obtains combustion heat from the solid fuel of RPF.

In particular, RPF's solid fuel has good combustion efficiency because it is mainly made of waste resin (plastic), paper, etc. In addition, the solid fuel combustion device of this embodiment can process combustible waste. Therefore, when heat is generated, the amount of carbon dioxide produced is expected to be reduced compared to the case where fuels such as heavy oil and natural gas are newly burned. And of course, a variety of solid fuels are put into the combustion device. Therefore, even if it is simply described as solid fuel, the meaning is a variety of solid fuels.

FIG. 1 is a schematic side view of the entire solid fuel combustion device according to this embodiment. The solid fuel combustion device 1 is provided with a first combustion chamber 11, which is a main part of the combustion unit 10, and solid fuel is transported into the first combustion chamber 11 and burned. Directly above the first combustion chamber 11, a second combustion chamber 52, a third combustion chamber 53 and a connecting chamber 51 are provided in order. The second combustion chamber 52 and the third combustion chamber 53 are spaces for amplifying the flame generated by the combustion of the solid fuel in the first combustion chamber 11 and increasing the combustion heat. In the solid fuel combustion device 1 of this embodiment, the first combustion chamber 11, the second combustion chamber 52, and the third combustion chamber 53 are all cylindrical. As will be described later, this is to facilitate the heat flow to rise during rotation. The connection chamber 51 is a space that connects the generated combustion heat to a heat exchanger or a heat transfer tube (both not shown) of the boiler. In addition, depending on the scale of the solid fuel combustion device 1 itself, the third combustion chamber 53 may be omitted.

The combustion part 10 of the embodiment mainly includes: a first combustion chamber 11 for burning the transported solid fuel; a supply part 12 for supplying the solid fuel to the first combustion chamber 11; and a turntable part 20 to form the first combustion chamber. The bottom 17 of the chamber 11 is rotated; the stirring part 30 is used to stir the transported solid fuel.

A hole 22 (refer to FIG. 5 ) into which the burned ash of the solid fuel falls is formed in the turntable part 20 . The dust collecting chamber 18 is formed below the turntable part 20 , and the turntable part 20 is provided at the bottom 17 of the first combustion chamber 11 .

A fired ash discharge part 42 is provided in the dust collecting chamber 18 below the turntable part 20 . The burned ash falling into the dust collecting chamber 18 is transported to the burned ash recovery box 45 through the burned ash discharge part 42 .

In the solid fuel combustion device 1 shown in FIG. 1 , the dust chamber 18 , the first combustion chamber 11 and their upper structure are supported by the legs 19 . The turntable part 20 is connected to the turntable shaft part 26 and driven by the rotation motor M4. The fired ash discharge part 42 is driven by a discharge motor M3.

The configuration of each part will be described based on a plan view of the combustion part 10 of FIG. 2 plus a schematic side view of the entire side of the solid fuel combustion device 1 of FIG. 1 . The supply part 12 includes a supply rotation shaft 13 and a supply blade 14 screw-mounted on the supply rotation shaft 13 . The supply blade 14 is a propeller called an Archimedes propeller, an Archimedes propeller, or the like. The supply rotation shaft 13 and the supply blade 14 are rotated by the supply motor M1. The solid fuel of RPF is loaded into the supply part 12 from the supply port 15 (feed hopper). Then, the supply motor M1 is driven to rotate the supply rotating shaft 13 and the supply blade 14, and the solid fuel moves from the position of the supply port 15 through the supply blade 14 to the front end of the supply part 12, and falls from the front end of the supply part 12 into the first The interior of the combustion chamber 11.

As can be understood from FIG. 2 , the front end of the supply part 12 does not penetrate deeply into the first combustion chamber 11 , but stays approximately at the inner wall surface. Therefore, the front end of the supply part 12 is located directly above the edge part 21 of the turntable part 20. Since the front end of the supply part 12 does not penetrate deeply into the first combustion chamber 11 , the supply part 12 (the supply rotation shaft 13 and the supply blade 14 ) is less likely to be damaged by heat, and the replacement frequency of components in the combustion device 1 can be reduced. The turntable part 20 shown in Figure 2 can be disassembled and replaced. Here, the straight line portion shown on the turntable portion 20 represents the separation portion.

It can be understood from the side view of FIG. 3 that when the solid fuel R continues to fall from the end position of the supply part 12 , it will accumulate on the edge part 21 of the turntable part 20 in the first combustion chamber 11 . Therefore, the accumulation deviation of the solid fuel R moving on the upper surface of the turntable unit 20 is required. Therefore, the solid fuel combustion device 1 is provided with the stirring unit 30 .

The stirring part 30 includes a stirring rotation shaft 31 and a stirring blade 32 spirally mounted on the stirring rotation shaft 31 . The stirring blade 32 is a propeller called an Archimedes propeller, an Archimedes screw, or the like. The stirring rotation shaft 31 and the stirring blade 32 are rotated by the stirring motor M2. When the solid fuel R is filled from the supply part 12 , the solid fuel R is unevenly collected in a part of the bottom 17 of the first combustion chamber 11 . Even if the turntable part 20 rotates, the solid fuel R still accumulates on the edge part 21 of the turntable part 20. Therefore, the solid fuel R deposited on the edge portion 21 of the turntable portion 20 moves to the vicinity of the center of the turntable portion 20 through the stirring blades 32 of the stirring portion 30 .

According to FIG. 1 , the stirring blades 32 of the stirring part 30 are arranged at a slight distance above the turntable part 20 , and the turntable part 20 is arranged on the bottom 17 of the first combustion chamber 11 . Furthermore, according to FIG. 2 , the stirring blades 32 of the stirring part 30 extend from the edge part 21 of the turntable part 20 to the vicinity of the center of the turntable part 20 . As can be understood from the schematic side view of FIG. 4 , the solid fuel R scraped off by the stirring blades 32 of the stirring part 30 moves from the edge part 21 of the turntable part 20 to near the center. At the same time, the turntable portion 20 itself rotates in the bottom 17 of the first combustion chamber 11 .

Therefore, no matter whether the solid fuel is accumulated at any position on the edge 21 of the turntable part 20, through the action of the stirring part 30 and the rotation of the turntable part 20, the solid fuel continuously moves from the edge part 21 of the turntable part 20 to near the center. The accumulation (accumulation) of fuel changes in a mountain shape (refer to the position change of solid fuel in Figures 3 to 4).

From the perspective of exerting stirring performance, the stirring part 30 is positioned toward the center of the turntable part 20 . In this case, the stirring rotation shaft 31 and the stirring blade 32 of the stirring unit 30 are thermally exposed to the combustion heat (thermal energy) of the solid fuel. However, the combustion heat of the solid fuel near the edge portion 21 of the turntable portion 20 does not become high enough to damage the stirring portion 30 . On the contrary, the temperature increases towards the upper part of the first combustion chamber 11 and further above it. Therefore, the stirring part 30 provided near the turntable part 20 is less affected by thermal damage caused by solid fuel combustion.

In addition, even when the solid fuel is burned, the stirring unit 30 can move the solid fuel. Therefore, unburned solid fuel can move on the turntable portion 20 through the stirring portion 30 . The unburned solid fuel can then be completely burned wherever it travels. Therefore, the provision of the stirring unit 30 contributes to improving the combustion efficiency of the solid fuel delivered to the first combustion chamber 11 .

As for the stirring blade 32 attached to the stirring rotation shaft 31 of the stirring part 30, the solid fuel moves to the vicinity of the center of the turntable unit 20 in the forward rotation direction as mentioned above. Here, the stirring unit 30 can rotate the stirring blade 32 in the opposite direction (reverse rotation). When the stirring blade 32 rotates in the opposite direction, the burned ash (slag, etc.) of the solid fuel remaining on the turntable part 20 is scraped off and discharged from the combustion part 10 (first combustion chamber 11 ).

As another type of the stirring part 30 , a long plate-shaped object (not shown) may be used instead of the stirring rotating shaft 31 and the stirring blade 32 . Alternatively, long stick-like objects can be used. The long plate-shaped object is inserted into the first combustion chamber 11 from the same position as the stirring part 30 in the first combustion chamber 11 . The position, angle and length of the long plate-shaped object inserted into the first combustion chamber 11 are appropriately adjusted. Even if the stirring part 30 is made into a long plate-shaped object, the solid fuel is continuously attracted from the edge part 21 of the turntable part 20 to the vicinity of the center by the rotation of the turntable part 20.

As can be understood from the overall schematic side view of FIG. 1 (the schematic side views of FIGS. 3 and 4 ), a dust collecting chamber 18 is formed below the bottom 17 (turntable portion 20 ) of the first combustion chamber 11 . Here, the partially exploded view of FIG. 5 shows the turntable portion 20 with about half of the cutout. The lower half of the figure shows only the turntable portion 20 , and the upper half shows the inside of the dust collecting chamber 18 directly below the turntable portion 20 .

A large number of holes 22 are formed on the plate surface of the turntable part 20 . The solid fuel R used (refer to Figures 3 and 4) is an irregularly shaped block of approximately 3 to 7 cm. The unburned residue left by the burning of the solid fuel in the first combustion chamber 11 becomes burnt ash As. Therefore, the fired ash As passes through the hole portion 22 and falls into the dust collecting chamber 18 directly below the turntable portion 20 . The shape of the hole 22 is suitable, for example, circular, square or even long slit shape. In addition, the hole portion 22 may be suitably arranged in a radial or arcuate shape from the center of the turntable portion 20 .

The dust collecting part 40 is connected to the turntable shaft part 26 at the lower part of the turntable part 20 (refer to FIG. 5). The dust collecting part 40 is a plate-shaped member in contact with the bottom surface of the dust collecting chamber 18 and has a length corresponding to the radius of the bottom surface in the dust collecting chamber 18 (see FIGS. 1 , 3 and 4 ). The combustion ash As falling into the dust collecting chamber 18 is concentrated from the entire bottom surface of the dust collecting chamber 18 by the dust collecting part 40 that rotates in conjunction with the rotation of the rotating motor M4 and the turntable part 20 (the turntable shaft part 26 ). Then, the collected fired ash As is guided from the dust collecting port 41 to the fired ash discharge part 42 .

As shown in FIGS. 1 , 3 and 4 , the fired ash discharge part 42 includes a discharge blade 43 installed in a spiral shape on the discharge rotation shaft 44 . The discharge blade 43 is a propeller called an Archimedes propeller, an Archimedes screw, or the like. The discharge rotating shaft 44 and the discharge blade 43 are rotated by the discharge motor M3. Therefore, the fired ash As falling from the dust collecting port 41 and entering the fired ash discharge portion 42 efficiently falls from the fired ash discharge port 46 into the fired ash recovery box 45 through the discharge blade 43 .

According to the solid fuel combustion device 1 of the present embodiment, the turntable portion 20 is driven to rotate at a rotation speed of one revolution per minute. Of course, the rotation speed depends on the size of the device itself. The rotation of the turntable unit 20 is driven when solid fuel is transported, when the solid fuel is formed into a mountain shape on the turntable unit 20, and when burned ash is removed after combustion. Of course, when the solid fuel is continuously transported into the first combustion chamber 11, the turntable portion 20 is always driven to rotate.

As shown in FIG. 1 , the solid fuel combustion device 1 of this embodiment includes a second combustion chamber 52 and a third combustion chamber 53 provided above the first combustion chamber 11 . When burning the heated solid fuel to produce flammable gas, air is supplied from the outside of the combustion device 1 to improve combustion efficiency. Specifically, as shown in the plan view of FIG. 6 , the second combustion chamber 52 is provided with an air supply portion. In this embodiment, a first air supply part 55 and a second air supply part 56 are provided. Air enters the second combustion chamber 52 from both the first air supply part 55 and the second air supply part 56 . Triggered by the wind pressure of the incoming air, as shown by the arc-shaped arrow in FIG. 6 , a swirling flow of the flame (flame vortex, heat flow) is generated inside the second combustion chamber 52 including the first combustion chamber 11 .

The swirling flow of the flame generated by the combustion of the solid fuel (combustible gas) spreads to the first combustion chamber 11 and the second combustion chamber 52 . Then, as shown in the overall schematic side view of FIG. 7 , the swirling flow of the flame indicated by the arc-shaped arrow rises vertically with respect to the first combustion chamber 11 , the second combustion chamber 52 , and the third combustion chamber 53 . In this way, the flame grows from the solid fuel accumulated in the first combustion chamber 11 until it reaches the height of the second combustion chamber 52 and the third combustion chamber 53, and a swirling flow of the flame is generated. The temperature on the upper side of the flame is high compared to the size of the rising flame. Therefore, in order to increase the combustion heat obtainable from a unit weight of solid fuel, it is preferable to provide the second combustion chamber 52 and the third combustion chamber 53 above the first combustion chamber 11 .

Through a series of explanations and drawings, the efficient combustion of solid fuel in the solid fuel combustion device 1 of this embodiment has been explained. Hereinafter, the control mechanism of the combustion conditions of the solid fuel combustion device 1 of this embodiment will be described. In the example of the solid fuel combustion device 1 of this embodiment, the color of the combustion smoke generated during the solid fuel combustion process (black, white, colorless, etc.) is identified, and the quality of the solid fuel combustion state (complete combustion or incomplete combustion) is determined. ), and control the supply amount of solid fuel and air supply.

FIG. 8 is a schematic structural block diagram showing a control unit installed in the solid fuel combustion device 1 of this embodiment. The configuration of the control unit 100 is composed of hardware such as a microcomputer necessary for receiving various signals, performing calculations, storage, operation control, etc. Its structure includes a central processing unit (CPU) 101, a read-only memory (ROM) 102, Random access memory (RAM) 103, storage unit 104, input/output interface (I/O, Input/output interface) 105, etc.

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 instructions as a program of software that implements each function. As a recording medium for storing the above program, "non-transitory tangible media" such as CD, DVD, semiconductor memory, programmable logic circuit, etc. can be used. In addition, the above-mentioned program can be provided to the control unit 100 of the solid fuel combustion device 1 via any transmission medium (communication network, broadcast wave, etc.) capable of transmitting the above-mentioned program.

The memory unit 104 of the control unit 100 is a known storage device, such as HDD or SSD. The storage unit 104 may be an external server (not shown in the figure). The memory unit 104 stores various data, messages, cities, various data required for executing programs, etc. In addition, a computing function unit that performs various calculations, calculations, etc. is, for example, a computing element of the CPU 101. In addition, input devices such as a keyboard, a mouse (not shown in the figure), a display unit (a display not shown in the figure, etc.) device), an output device that outputs data, etc. may also be connected to the I/O 105 of the control unit 100 as appropriate.

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

The fuel amount control unit is the supply motor M1 of the stirring unit 30 in FIG. 1 . The amount of solid fuel supplied from the stirring unit 30 to the first combustion chamber 11 is increased or decreased by controlling the rotational speeds of the supply rotating shaft 13 and the supply blade 14 of the supply motor M1.

The air amount control unit is the air supply machine F in Fig. 1 . The air supply device F is a known blower or the like, and in this embodiment, supplies air (oxygen) to the first air supply part 55 and the second air supply part 56 . By controlling the amount of air supplied from the air supplier F to the second combustion chamber 52 to increase or decrease, the amount of oxygen in the first combustion chamber 11 is increased or decreased.

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

The control state of the combustion state of the solid fuel will be described with reference to the flowchart of FIG. 9 . First, the combustion smoke imaging unit 110 photographs combustion smoke generated during solid fuel combustion (S101). The photographed combustion smoke information is transmitted to the control unit 100, and the amount of solid fuel combustion is determined. That is, smoke color judgment is performed to determine whether the color corresponds to any color of combustion smoke (eg, black, white, colorless, etc.) (S102). For example, compare with a predefined baseline color of smoke color to determine whether the color of the photographed combustion smoke is darker. As a result of smoke color judgment, when the color of combustion smoke is relatively white or colorless, it can be judged that the combustion state of the solid fuel is almost completely burned. In this case, the current solid fuel supply and air supply remain unchanged. Therefore, the supply motor M1 (fuel amount control unit) and the air supply machine F (air amount control unit) are instructed to remain as they are without any changes, and the process ends.

In this regard, if the smoke color judgment result is that the color of the combustion smoke is relatively black or dark gray, then the combustion state of the solid fuel is likely to be incomplete combustion. In this case, the current solid fuel supply and air supply need to be changed for complete combustion. Therefore, the supply motor M1 (fuel amount control unit) and the air supply machine F (air amount control unit) are instructed to change (S104). At this point, the processing ends. After that, the combustion smoke was photographed again and the color of the smoke was judged to confirm the combustion state of the solid fuel.

Specifically, the supply motor M1 (fuel amount control unit) is controlled so as to reduce the amount of solid fuel supplied from the supply unit 12 to the first combustion chamber 11 . Furthermore, the air supply machine F (air amount control section) is controlled so as to increase the amount of air supplied from the air supply section (first air supply section 55 and second air supply section 56 ) to the second combustion chamber 52 . Of course, it is also possible to control the amount of solid fuel to increase or the amount of air to decrease. In addition, the supply motor M1 (fuel amount control unit) and the air supply machine F (air amount control unit) can be controlled simultaneously.

In addition, when the combustion heat required for operation of the solid fuel combustion device 1 increases or decreases, one of the supply motor M1 (fuel amount control unit) and the air supply machine F (air amount control unit) may be controlled via the control unit 100 . One or both control.

1: Solid fuel combustion device 10: Combustion Department 11:First combustion chamber 12: Supply Department 13: Supply rotation axis 14:Supply blade 15: Supply port 17: Bottom 18:Dust collection room 19:Feet 20:Turntable Department 21: Edge 22: Hole 26: Turntable shaft part 30: Stirring part 31: Stirring rotating shaft 32: Stirring blade 40:Dust collection department 41:Dust collection port 42:Incineration ash discharge department 43: Discharge blade 44: Discharge rotating shaft 45:Incinerated ash recycling bin 46: Burned ash discharge port 51:Connecting room 52:Second combustion chamber 53:Third combustion chamber 55:First air supply department 56: Second air supply part M1: Supply motor (fuel quantity control part) M2: Stirring motor M3: Discharge motor M4: rotation motor R: solid fuel As: burned to ashes 100:Control Department (Computer) 101:Central processing unit 102: Read-only memory 103: Random access memory 104:Memory Department 105:Input/output interface 110: Combustion smoke shooting department F: Air supply machine K: Burning smoke

FIG. 1 is a schematic side view of the entire solid fuel combustion device according to this embodiment. Fig. 2 is a top view of the combustion unit. Figure 3 is a schematic view of the first side of the combustion section. Figure 4 is a schematic view of the second side of the combustion section. Fig. 5 is a partially exploded view of the turntable unit. Figure 6 is a top view of the second combustion chamber. 7 is a schematic diagram showing an overall side view of the solid fuel combustion device showing a swirling flow generated by combustion. FIG. 8 is a schematic block diagram showing a control unit of a solid fuel combustion device. FIG. 9 is a flowchart showing a control flow of the solid fuel combustion device.

1: Solid fuel combustion device

10: Combustion Department

11:First combustion chamber

12: Supply Department

13: Supply rotation axis

14:Supply blade

15: Supply port

17: Bottom

18:Dust collection room

19:Feet

20:Turntable Department

26: Turntable shaft part

30: Stirring part

31: Stirring rotating shaft

32: Stirring blade

40:Dust collection department

42:Incineration ash discharge department

43: Discharge blade

44: Discharge rotating shaft

45:Incinerated ash recycling bin

51:Connecting room

52:Second combustion chamber

53:Third combustion chamber

M1: Supply motor (fuel quantity control part)

M2: Stirring motor

M3: Discharge motor

M4: rotation motor

Claims (9)

A solid fuel combustion device supplies a plurality of solid fuels to a combustion part and obtains combustion heat through combustion, wherein the combustion part is provided with: a first combustion chamber to burn the plurality of solid fuels; and a supply part to burn the plurality of solid fuels. Fuel is supplied to the first combustion chamber; and a turntable portion that forms a bottom of the first combustion chamber and rotates the plurality of solid fuels supplied from the supply portion at the bottom; and a stirring portion provided on the turntable portion The first combustion chamber is equipped with a stirring blade or a long plate-shaped object of a helical propeller connected to and rotating with the stirring rotation shaft, so that the plurality of solid fuels accumulated in the turntable part are moved from the edge of the turntable part to near the center. Stir while moving. The solid fuel combustion device according to claim 1, wherein the first combustion chamber is cylindrical, and the supply part supplies the plurality of solid fuels to an edge of the turntable part. The solid fuel combustion device according to claim 1, wherein a hole for allowing combustion ashes of the plurality of solid fuels to fall is formed in the turntable portion, and a combustion ash discharge portion is provided below the turntable portion. The solid fuel combustion device as claimed in claim 3, wherein a dust collecting part is provided at the lower part of the turntable part, and the dust collecting part collects the combustion ashes dropped from the turntable part. The solid fuel combustion device according to claim 4, wherein a dust collecting chamber is connected to the lower part of the turntable part, the dust collecting chamber is provided with a burned ash discharge part, and the burned ash discharge part has a discharge rotating shaft. The discharge blades of a spiral-shaped propeller are connected and rotated. The solid fuel combustion device according to claim 1, wherein a second combustion chamber is provided above the first combustion chamber, and the second combustion chamber is used to raise the flame generated by the combustion of the plurality of solid fuels. . The solid fuel combustion device according to claim 6, wherein the second combustion chamber is provided with an air supply part for supplying air for burning a plurality of solid fuels. The solid fuel combustion device according to claim 1, which is provided with: a combustion smoke photographing unit for photographing combustion smoke generated during the combustion of multiple solid fuels; and a fuel quantity control unit for controlling the supply of fuel from the supply unit to the first The amount of a plurality of solid fuels in the combustion chamber; and the fuel amount control part determines the combustion amount of the multiple solid fuels based on the color of the combustion smoke photographed by the combustion smoke photographing part, and controls the supply from the supply part to the third The amount of the multiple solid fuels in a combustion chamber. The solid fuel combustion device according to claim 7, which is provided with: a combustion smoke photographing unit for photographing combustion smoke generated during the combustion of multiple solid fuels; and an air volume control unit for controlling the supply of air from the air supply unit to the third The amount of air in the second combustion chamber; and the air amount control part determines the combustion amount of the plurality of solid fuels based on the color of the combustion smoke photographed by the combustion smoke photographing part, and controls the supply from the air supply part to the second The amount of air in the combustion chamber.