Combustion device for solid fuel

Abstract

To provide a combustion device for a solid fuel using a combustible solid waste as a solid fuel, which avoids a site related to supply of the solid fuel from being damaged due to thermal exposure in firing to excellently move the solid fuel inside a firing device.SOLUTION: A combustion device for a solid fuel is configured to supply a plurality of solid fuels to a combustion unit to obtain combustion heat by combustion. The combustion unit comprises: a first combustion chamber that burns a solid fuel; a supply unit that supplies a plurality of solid fuels to the first combustion chamber; a turntable unit that forms a lower surface part of the first combustion chamber, and rotates the plurality of solid fuels supplied from the supply unit on the lower surface part; and an agitation unit that agitates the solid fuel accumulated in the turntable unit on the turntable unit.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a solid fuel combustion apparatus, and more particularly to a solid fuel combustion apparatus for burning combustible solid waste as fuel to obtain heat. [Background technology]

[0002] Combustible solid waste such as resin (plastic) has been used as a raw material for RPF (Refuse derived paper and plastics densified fuel). Even though it is waste, it can be easily burned in a calciner and can produce the same amount of heat as existing coke. In addition, since waste is treated as solid fuel, it is expected that the overall amount of carbon dioxide generated will be reduced compared to when new fuels such as heavy oil and natural gas are burned.

[0003] When solid fuel such as RPF is burned in a combustion device, the solid fuel has poor fluidity in the device (furnace), and after the solid fuel is burned, ash is also produced. Therefore, simply putting the solid fuel into the combustion device reduces the combustion efficiency of the solid fuel in the combustion device (furnace). In addition, the combustion device cannot be operated safely unless the ash is appropriately removed.

[0004] Therefore, calcination devices incorporating improvements in the supply of solid fuel and the removal of calcined ash have been proposed (for example, Patent Documents 1 and 2, etc.). However, the calcination devices described in each of the patent documents are not necessarily sufficient in terms of the supply of solid fuel to the inside of the calcination device and the removal of calcined ash after the solid fuel is calcined, and further improvements are desired. In addition, if the mechanism of the calcination device becomes complicated, the mechanism for supplying solid fuel, etc., is exposed to heat when the solid fuel is calcined inside the calcination device, and the durability of the device is likely to decrease. For this reason, improvements to the current calcination devices have not progressed. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2014-211255 A [Patent Document 2] JP 2008-261527 A Summary of the Invention [Problem to be solved by the invention]

[0006] As a result of extensive research, the inventors have come up with an effective configuration for supplying solid fuel while avoiding heat exposure during burning, ensuring the movement of solid fuel inside the burning device, and removing burned ash, and have completed a new solid fuel combustion device.

[0007] The present invention has been made in consideration of the above-mentioned points, and provides a solid fuel combustion device that uses combustible solid waste such as resin (plastic) as solid fuel, which prevents parts related to the supply of solid fuel from being damaged by exposure to heat during burning and improves the movement of solid fuel inside the burning device. [Means for solving the problem]

[0008] That is, the solid fuel combustion device of the embodiment is a solid fuel combustion device that supplies multiple solid fuels to a combustion section to obtain combustion heat through combustion, and the combustion section is characterized by having a first combustion chamber for burning the solid fuel, a supply section for supplying the multiple solid fuels to the first combustion chamber, a turntable section that forms the underside of the first combustion chamber and rotates the multiple solid fuels supplied from the supply section on the underside, and a stirring section that stirs the solid fuel accumulated in the turntable section on the turntable section.

[0009] Furthermore, the first combustion chamber may be cylindrical, and the supply unit may supply a plurality of solid fuels to the peripheral end of the turntable unit.

[0010] Furthermore, the turntable may be formed with holes through which the combustion ashes of the multiple solid fuels fall, and a combustion ash discharge section may be provided below the turntable.

[0011] Furthermore, a dust collecting section may be provided below the turntable section, and the dust collecting section may collect the combustion ash that has fallen from the turntable section.

[0012] Furthermore, a second combustion chamber may be provided above the first combustion chamber for the flames generated by the combustion of the multiple solid fuels to rise.

[0013] Furthermore, the second combustion chamber may be provided with an air supply unit for supplying air for combustion of the plurality of solid fuels.

[0014] Furthermore, the stirring section may be provided with a stirring blade or a long plate-like object, and may move the solid fuel accumulated on the turntable section to the vicinity of the center of the turntable section.

[0015] Furthermore, the device may be provided with a combustion smoke photographing unit that photographs the combustion smoke generated during the combustion of multiple solid fuels, and a fuel quantity control unit that controls the amount of solid fuel supplied from the supply unit to the first combustion chamber, and the fuel quantity control unit may determine the amount of combustion of the multiple solid fuels from the color of the combustion smoke photographed by the combustion smoke photographing unit, and control the amount of the multiple solid fuels supplied from the supply unit to the first combustion chamber.

[0016] Furthermore, the device may be provided with a combustion smoke imaging unit that images the combustion smoke generated during the combustion of multiple solid fuels, and an air volume control unit that controls the amount of air supplied from the air supply unit to the second combustion chamber, and the air volume control unit may determine the amount of combustion of the multiple solid fuels from the color of the combustion smoke imaged by the combustion smoke imaging unit, and control the amount of air supplied from the air supply unit to the second combustion chamber. Effect of the Invention

[0017] The solid fuel combustion device of the present invention is a solid fuel combustion device that supplies multiple solid fuels to a combustion section and obtains combustion heat through combustion.The combustion section is equipped with a first combustion chamber for burning solid fuel, a supply section for supplying multiple solid fuels to the first combustion chamber, a turntable section that forms the underside of the first combustion chamber and rotates the multiple solid fuels supplied from the supply section on the underside, and a stirring section that stirs the solid fuel accumulated in the turntable section on the turntable section.Therefore, it is possible to prevent the parts related to the supply of solid fuel made of combustible solid waste from being damaged by exposure to heat during burning. [Brief description of the drawings]

[0018] [Figure 1] 1 is a schematic side view of an entire solid fuel combustion device according to an embodiment of the present invention; [Diagram 2] FIG. [Diagram 3] FIG. 2 is a schematic diagram of a first side of a combustion section. [Figure 4] FIG. 2 is a schematic diagram of a second side of the combustion section. [Diagram 5] FIG. [Figure 6] FIG. 4 is a plan view of the second combustion chamber. [Figure 7] FIG. 2 is a schematic side view of an entire solid fuel combustion device showing the swirling flow generated by combustion. [Figure 8] FIG. 2 is a schematic block diagram showing a control unit of the solid fuel combustion device. [Figure 9] 4 is a flowchart showing a control flow of the solid fuel combustion device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] The solid fuel combustion device of the embodiment uses a combustible material called RPF (Refuse derived paper and plastics densified fuel) obtained by compressing solid combustible waste such as resin (plastic) and paper as a solid fuel. The solid fuel is put 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 generate combustible gas from the solid fuel. The combustible gas is then ignited to generate a flame, which is collected 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, and the like. In this way, the solid fuel combustion device of the embodiment is a device for obtaining combustion heat from the solid fuel of RPF.

[0020] In particular, RPF solid fuel has good combustion efficiency because it is made primarily from waste resin (plastic), paper, etc. Furthermore, the solid fuel combustion device of the embodiment can process combustible waste. Therefore, it is expected that the amount of carbon dioxide generated during the generation of heat will be reduced compared to when new fuels such as heavy oil and natural gas are burned. Obviously, multiple pieces of solid fuel are put into the combustion device. Therefore, even when it is simply written as solid fuel, it means multiple (multiple pieces, multiple amounts) solid fuels.

[0021] FIG. 1 is a schematic side view of the solid fuel combustion device 1 of the embodiment. The solid fuel combustion device 1 is a main part of the combustion section 10 and includes a first combustion chamber 11 in which solid fuel is carried in and burned. Directly 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 the combustion of solid fuel in the first combustion chamber 11 to increase the amount of combustion heat. In the solid fuel combustion device 1 of the embodiment, the first combustion chamber 11, the second combustion chamber 52, and the third combustion chamber 53 are all cylindrical in shape. This is because it is convenient for the heat flow to rise while swirling, as described later. 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 size of the solid fuel combustion device 1 itself.

[0022] The combustion section 10 of the embodiment mainly comprises a first combustion chamber 11 that burns the solid fuel that is brought in, a supply section 12 that supplies the solid fuel to the first combustion chamber 11, a turntable section 20 that forms the underside section 17 of the first combustion chamber 11 and rotates the underside section 17, and a stirring section 30 that stirs the solid fuel that is brought in.

[0023] A hole 22 (see FIG. 5) into which the burned ash of the solid fuel falls is formed in the turntable 20. A dust collection chamber 18 is formed below the turntable 20 which is installed on the underside 17 of the first combustion chamber 11.

[0024] The dust collecting chamber 18 below the turntable unit 20 is provided with a burnt ash discharge unit 42. The burnt ash that falls into the dust collecting chamber 18 is transported to a burnt ash recovery box 45 by the burnt ash discharge unit 42.

[0025] In the solid fuel combustion device 1 shown in Fig. 1, the dust collection chamber 18, the first combustion chamber 11, and the upper structure thereof are supported by legs 19. The turntable unit 20 is connected to the turntable shaft unit 26 and is driven by a rotation motor M4. The burnt ash discharge unit 42 is driven by a discharge motor M3.

[0026] The configuration of each part will be described by adding a plan view of the combustion part 10 in Fig. 2 to the overall side schematic diagram of the solid fuel combustion device 1 in Fig. 1. The supply part 12 includes a supply rotating shaft 13 and a supply impeller 14 attached in a spiral shape to the supply rotating shaft 13. The supply impeller 14 is a spiral propeller called an Archimedes screw or Archimedes spiral. The supply rotating shaft 13 and the supply impeller 14 are rotated by a supply motor M1. The solid fuel of the RPF is fed into the supply part 12 from a supply port 15 (hopper). Then, the supply motor M1 is driven to rotate the supply rotating shaft 13 and the supply impeller 14, so that the solid fuel moves from the position of the supply port 15 to the tip of the supply part 12 through the supply impeller 14, and falls from the tip of the supply part 12 into the inside of the first combustion chamber 11.

[0027] As can be seen from Fig. 2, the tip of the supply section 12 does not penetrate deeply into the first combustion chamber 11, but remains at a position almost at the inner wall surface. Therefore, the tip of the supply section 12 is located directly above the peripheral end 21 of the turntable section 20. Because the tip of the supply section 12 does not penetrate deeply into the first combustion chamber 11, the supply section 12 (the supply rotating shaft 13 and the supply blades 14) is less likely to be thermally damaged, and the frequency of part replacement in the combustion device 1 is reduced. The turntable section 20 shown in Fig. 2 can be disassembled for replacement. Therefore, the linear areas shown on the turntable section 20 indicate the cut-off parts.

[0028] 3, when the solid fuel R continues to be dropped from the tip of the supply unit 12, it accumulates on the peripheral end 21 of the turntable unit 20 in the first combustion chamber 11. Therefore, it is necessary to move the unevenness of the solid fuel R accumulated on the upper surface of the turntable unit 20. Therefore, the solid fuel combustion device 1 is provided with an agitator 30.

[0029] The agitator 30 includes an agitator shaft 31 and an agitator blade 32 attached in a spiral shape to the agitator shaft 31. The agitator blade 32 is a spiral propeller, also called an Archimedes screw or Archimedes spiral. The agitator shaft 31 and the agitator blade 32 are rotated by an agitator motor M2. When the solid fuel R is fed from the feeder 12, the solid fuel R is unevenly accumulated on a part of the lower surface 17 of the first combustion chamber 11. Even if the turntable 20 rotates, the solid fuel R is still accumulated on the peripheral end 21 of the turntable 20. Therefore, the solid fuel R accumulated on the peripheral end 21 of the turntable 20 is moved to the center of the turntable 20 through the agitator blade 32 of the agitator 30.

[0030] 1, the stirring blade 32 of the stirring unit 30 is installed at a small distance upward from the turntable unit 20 arranged on the underside 17 of the first combustion chamber 11. Also, as shown in FIG. 2, the stirring blade 32 of the stirring unit 30 extends from the peripheral end 21 of the turntable unit 20 toward the center of the turntable unit 20. As can be seen from the schematic side view of FIG. 4, the solid fuel R scraped off by the stirring blade 32 of the stirring unit 30 is moved from the peripheral end 21 of the turntable unit 20 to the center. At the same time, the turntable unit 20 itself rotates on the underside 17 of the first combustion chamber 11.

[0031] Therefore, regardless of where the solid fuel has accumulated on the peripheral end 21 of the turntable section 20, through the operation of the agitator section 30 and the rotation of the turntable section 20, the solid fuel is constantly moved from the peripheral end 21 of the turntable section 20 toward the center, and the accumulation (pile) of solid fuel changes into a mountain shape (see the change in the position of the solid fuel from Figure 3 to Figure 4).

[0032] The position of the agitator 30 is located toward the center of the turntable 20 in order to exert agitation performance. In this case, the agitator rotating shaft 31 and the agitator blades 32 of the agitator 30 are exposed to the combustion heat (firepower) of the solid fuel. However, the combustion heat of the solid fuel does not become hot enough to damage the agitator 30 near the peripheral end 21 of the turntable 20. Rather, the temperature becomes higher at the top of the first combustion chamber 11 and further above that. Therefore, the agitator 30 located near the turntable 20 is less affected by thermal damage caused by the combustion of the solid fuel.

[0033] In addition, the agitator 30 allows the solid fuel to move even when the solid fuel is being burned. Therefore, the unburned solid fuel is moved on the turntable 20 by the agitator 30. Then, the unburned solid fuel can be completely burned at the moved location. For this reason, the agitator 30 contributes to improving the combustion efficiency of the solid fuel brought into the first combustion chamber 11.

[0034] As described above, when the agitator blade 32 attached to the agitator rotation shaft 31 of the agitator 30 rotates in the forward direction, the solid fuel is moved to the vicinity of the center of the turntable 20. Here, the agitator 30 can reverse the rotation direction of the agitator blade 32 (reverse rotation). When the agitator blade 32 is rotated in the reverse direction, the burned ash (clinker, etc.) of the solid fuel remaining on the turntable 20 is scraped out and discharged from the combustion section 10 (first combustion chamber 11).

[0035] As another embodiment of the agitator 30, a long plate-like object (not shown) can be used instead of the agitator rotating shaft 31 and the agitator blades 32. A long rod-like object may also be used. The long plate-like object is inserted into the first combustion chamber 11 from the same position as the agitator 30 of the first combustion chamber 11. The position, angle, and length of insertion of the long plate-like object when inserting it into the first combustion chamber 11 are appropriately adjusted. By using a long plate-like object as the agitator 30, the solid fuel is constantly drawn from the peripheral end 21 of the turntable 20 toward the center as the turntable 20 rotates.

[0036] As can be seen from the overall schematic side view of Fig. 1 (schematic side views of Figs. 3 and 4), a dust collection chamber 18 is formed below a lower surface portion 17 (turntable portion 20) of the first combustion chamber 11. Here, the partial exploded view of Fig. 5 shows the turntable portion 20 cut roughly in half, with the lower half of the illustrated page showing only the turntable portion 20 and the upper half showing the inside of the dust collection chamber 18 directly below the turntable portion 20.

[0037] A number of holes 22 are formed in the plate surface of the turntable section 20. The solid fuel R (see Figs. 3 and 4) used is an irregular lump of about 3 to 7 cm. The remaining residue from the burning of the solid fuel in the first combustion chamber 11 becomes burnt ash As. The burnt ash As passes through the holes 22 and falls into the dust collection chamber 18 directly below the turntable section 20. The holes 22 may be appropriately shaped, such as round, square, or long slit-like. The holes 22 may be appropriately arranged, such as radially from the center of the turntable section 20 or in an arc-like shape.

[0038] The dust collecting unit 40 is connected to the turntable shaft 26 at the bottom of the turntable 20 (see FIG. 5). The dust collecting unit 40 is a plate-shaped member that contacts the bottom surface of the dust collecting chamber 18, and has a length equivalent to the radius of the inner bottom surface of the dust collecting chamber 18 (see FIGS. 1, 3, and 4). The burnt ash As that falls into the dust collecting chamber 18 is raked up over the entire bottom surface of the dust collecting chamber 18 by the dust collecting unit 40 that rotates in conjunction with the rotation of the turntable 20 (turntable shaft 26) by the rotating motor M4. The collected burnt ash As is then guided from the dust collecting port 41 to the burnt ash discharge unit 42.

[0039] As shown in Figures 1, 3, and 4, the burnt ash discharge section 42 is provided with a discharge blade 43 attached in a spiral shape to a discharge rotating shaft 44. The discharge blade 43 is a spiral propeller also called Archimedes' screw or Archimedes' spiral. The discharge rotating shaft 44 and the discharge blade 43 are rotated by a discharge motor M3. Thus, the burnt ash As that falls from the dust collection port 41 and enters the burnt ash discharge section 42 is efficiently dropped through the discharge blade 43 from the burnt ash discharge port 46 into the burnt ash collection box 45.

[0040] According to the solid fuel combustion device 1 of the embodiment, the turntable unit 20 is rotated at a rotation speed of one rotation per minute. Of course, the rotation speed is appropriate depending on the size of the device itself. The turntable unit 20 is rotated when the solid fuel is carried in and when the solid fuel is shaped into a mountain shape on the turntable unit 20, and when the burnt ash is removed after combustion. Of course, when the solid fuel is continuously carried in the first combustion chamber 11, the turntable unit 20 is rotated at all times.

[0041] As shown in FIG. 1, the solid fuel combustion device 1 of the embodiment includes a second combustion chamber 52 and a third combustion chamber 53 above the first combustion chamber 11. When combustible gas generated from heated solid fuel is burned, air is supplied from the outside of the combustion device 1 to increase the combustion efficiency. Specifically, as shown in the plan view of FIG. 6, an air supply unit is provided in the second combustion chamber 52. In the embodiment, a first air supply unit 55 and a second air supply unit 56 are provided. Air enters the second combustion chamber 52 from both the first air supply unit 55 and the second air supply unit 56. The wind pressure of the entering air triggers a swirling flow of flame (flame vortex, heat flow) inside the second combustion chamber 52 including the first combustion chamber 11, as shown by the arc-shaped arrow in FIG. 6.

[0042] The swirling flow of flame generated by the combustion of solid fuel (combustible gas) spreads to the first combustion chamber 11 and the second combustion chamber 52. Then, as shown in the overall side schematic diagram of FIG. 7, the swirling flow of flame indicated by the arc-shaped arrow rises vertically 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 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 of 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 further the third combustion chamber 53 above the first combustion chamber 11.

[0043] From a series of explanations and illustrations, efficient combustion of solid fuel in the solid fuel combustion device 1 of the embodiment has been described. Next, a mechanism for controlling the combustion conditions in the solid fuel combustion device 1 of the embodiment will be described. In the example of the solid fuel combustion device 1 of the embodiment, the color (black, white, colorless, etc.) of the combustion smoke generated when the solid fuel is burned is identified, the quality of the combustion state of the solid fuel (complete combustion or incomplete combustion) is determined, and the amount of solid fuel supplied and the amount of air supplied are controlled.

[0044] 8 is a block diagram showing a schematic configuration of the control unit 100 implemented in the solid fuel combustion device 1 of the embodiment. The control unit 100 is configured with hardware such as a microcomputer required for receiving various signals, executing calculations, storing, controlling operations, etc., and is equipped with a CPU 101, a ROM 102, a RAM 103, a storage unit 104, an I / O 105 (input / output interface), etc.

[0045] When each functional unit of the control unit 100 (computer) in Fig. 8 is realized by software, the control unit 100 is realized by executing instructions of a program, which is software that realizes each function. The recording medium that stores this program may be a "non-transitory tangible medium," such as a CD, a DVD, a semiconductor memory, or a programmable logic circuit. In addition, this program may be supplied to the control unit 100 of the solid fuel combustion device 1 via any transmission medium (communication network, broadcast waves, etc.) that can transmit the program.

[0046] The memory unit 104 of the control unit 100 is a known storage device such as an HDD or SSD. The memory unit 104 may be an external server (not shown). The memory unit 104 stores various data, information, programs, various data required for executing the programs, and the like. A functional unit that executes various calculations, calculations, and the like is a calculation element such as a CPU 101. In addition, input devices such as a keyboard and a mouse (not shown), a display unit (a display device such as a display not shown), an output device that outputs data, and the like may also be appropriately connected to the I / O 105 of the control unit 100.

[0047] The combustion smoke photographing unit 110 is a known CCD camera, CMOS image sensor, etc. It photographs the color (black, white, colorless, etc.) of the combustion smoke K generated when the solid fuel is burning in the first combustion chamber 11. Then, the color of the combustion smoke is transmitted to the control unit 100.

[0048] The fuel amount control unit is the supply motor M1 of the agitator 30 in Fig. 8. The amount of solid fuel supplied from the agitator 30 to the first combustion chamber 11 is increased or decreased by controlling the rotation speed of the supply rotary shaft 13 and the supply blade 14 of the supply motor M1 to increase or decrease.

[0049] The air amount control unit is the air supplier F in Fig. 8. The air supplier F is a known blower or the like, and in this embodiment, supplies air (oxygen) to the first air supplier 55 and the second air supplier 56. By controlling the increase / decrease in the amount of air supplied from the air supplier F to the second combustion chamber 52, the amount of oxygen in the first combustion chamber 11 increases / decreases.

[0050] As shown in the figure, the combustion smoke image capturing unit 110, the supply motor M1 (fuel amount control unit), and the air supply machine F (air amount control unit) are connected to the I / O 105 and controlled by the CPU 101 of the control unit 100.

[0051] The control of the solid fuel combustion state will be described with reference to the flow chart of FIG. 9. First, the combustion smoke generated during the combustion of the solid fuel is photographed by the combustion smoke photographing unit 110 (S101). Information on the photographed combustion smoke is sent to the control unit 100, and the amount of solid fuel burned is determined. That is, a smoke color determination is performed to determine whether the color corresponds to any of the colors of the combustion smoke (e.g., black, white, colorless, etc.) (S102). For example, a determination is made as to whether the color of the photographed combustion smoke is blacker or not by comparing with a predetermined reference color of the smoke color. If the result of the smoke color determination is that the color of the combustion smoke is relatively white or colorless, the combustion state of the solid fuel can be determined to be approximately complete combustion. In this case, the current supply amount of solid fuel and the supply amount of air are maintained as they are. Therefore, the supply motor M1 (fuel amount control unit) and the air supply machine F (air amount control unit) are instructed to maintain the current state, and the process ends without any changes.

[0052] On the other hand, if the result of the smoke color judgment shows that the color of the combustion smoke is relatively black or dark gray, it is highly likely that the solid fuel is incompletely burned. In this case, it is necessary to change the current amount of solid fuel supplied and the amount of air supplied to move to complete combustion. Therefore, the supply motor M1 (fuel amount control unit) and the air supply machine F (air amount control unit) are instructed to make the changes (S104). Then, the process ends. Thereafter, the combustion smoke is photographed again and the smoke color judgment is performed to confirm the solid fuel combustion state.

[0053] 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 supplier F (air amount control unit) is controlled to increase the amount of air supplied from the air supplier (first air supplier 55 and second air supplier 56) to the second combustion chamber 52. Of course, the control can be such that the amount of solid fuel is increased or the amount of air is decreased. Note that both the supply motor M1 (fuel amount control unit) and the air supplier F (air amount control unit) may be controlled simultaneously.

[0054] Furthermore, even when the amount of combustion heat required during operation of the solid fuel combustion device 1 is increased or decreased, control is performed via the control unit 100 on either or both of the supply motor M1 (fuel quantity control unit) and the air supplier F (air quantity control unit). [Explanation of symbols]

[0055] 1. Solid fuel combustion equipment 10 Combustion section 11 First combustion chamber 12 Supply section 13 Supply Rotary Shaft 14 Supply blade 17 Bottom part 18 Dust collection chamber 20 Turntable section 30 Stirring section 31 Agitation shaft 32 Stirring blade 40 Dust collection section 41 Dust collection port 42 Burnt ash discharge section 43 Discharge vane 44 Discharge Rotating Shaft 45 Ash collection box 51 Connecting Room 52 Second Combustion Chamber 53 Third Combustion Chamber M1 Supply motor (fuel quantity control section) M2 Stirring motor M3 Ejection Motor M4 Swivel motor R solid fuel As: Burnt ash 100 Control unit (computer) 101 CPU 102 ROM 103 RAM 104 Storage section 105 Input / Output Interface 110 Combustion Smoke Photography Department F Air supply machine K Combustion smoke

Claims

1. A solid fuel combustion device that supplies a plurality of solid fuels to a combustion section and obtains combustion heat by combustion, The combustion section includes: a first combustion chamber for burning the plurality of solid fuels; A supply unit for supplying the plurality of solid fuels to the first combustion chamber; a turntable portion that forms a bottom surface of the first combustion chamber and rotates the plurality of solid fuels supplied from the supply portion on the bottom surface; a stirring unit that stirs the plurality of solid fuels accumulated on the turntable unit on the turntable unit. A solid fuel combustion device characterized by:

2. 2. The solid fuel combustion device according to claim 1, wherein the first combustion chamber is cylindrical, and the supply unit supplies the plurality of solid fuels to a peripheral end of the turntable unit.

3. A hole through which the combustion ashes of the plurality of solid fuels fall is formed in the turntable portion, 2. The solid fuel combustion device according to claim 1, further comprising a combustion ash discharge section provided below said turntable section.

4. A dust collector is provided under the turntable, 4. The solid fuel combustion device according to claim 3, wherein the dust collecting section collects the combustion ash that has fallen from the turntable section.

5. 2. The solid fuel combustion device according to claim 1, further comprising a second combustion chamber provided above the first combustion chamber for allowing flames generated by the combustion of the plurality of solid fuels to rise.

6. 6. The solid fuel combustion device according to claim 5, wherein the second combustion chamber is provided with an air supply section for supplying air for the combustion of the plurality of solid fuels.

7. 2. The solid fuel combustion device according to claim 1, wherein the agitating section comprises an agitating blade or a long plate-like object, and moves the solid fuel accumulated on the turntable section to near the center of the turntable section.

8. a combustion smoke photographing unit that photographs combustion smoke generated during combustion of the plurality of solid fuels; a fuel amount control unit for controlling the amount of the plurality of solid fuels supplied from the supply unit to the first combustion chamber; The solid fuel combustion device described in claim 1, wherein the fuel quantity control unit determines the amount of combustion of the multiple solid fuels from the color of the combustion smoke photographed by the combustion smoke photographing unit, and controls the amount of the multiple solid fuels supplied from the supply unit to the first combustion chamber.

9. a combustion smoke photographing unit that photographs combustion smoke generated during combustion of the plurality of solid fuels; An air amount control unit is provided to control the amount of air supplied from the air supply unit to the second combustion chamber, The solid fuel combustion device according to claim 6, wherein the air volume control unit determines the amount of combustion of the multiple solid fuels from the color of the combustion smoke photographed by the combustion smoke photographing unit, and controls the amount of air supplied from the air supply unit to the second combustion chamber.

Images