Incineration system, incineration method, and incinerator

Abstract

The present invention provides an incineration system, incineration method, and incinerator that enable the suppression of the discharge of incinerated materials that have not been sufficiently burned. [Solution] An incineration system comprising an incinerator, wherein the incinerator has a combustion chamber for burning the material to be burned inside, an input port for introducing the material to be burned into the combustion chamber, and an output port for discharging the residue generated by the combustion of the material to be burned from the combustion chamber, wherein the surface on which at least one of drying and combustion of the material to be burned takes place in the combustion chamber is a sloped surface inclined such that the height on the input port side is higher than the height on the output port side, a weir is provided on the slope, and a communication port is provided between the weir and the slope to connect the input port side and the output port side on the slope.

Description

Technical Field

[0001] The present disclosure relates to an incineration system, an incineration method, and an incinerator.

Background Art

[0002] Incineration systems equipped with incinerators for incinerating sewage sludge (hereinafter, also simply referred to as sludge or combustible material) have been variously proposed (see Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] Here, in the incineration system as described above, for example, it is desired to suppress the discharge of unburned combustible materials.

Means for Solving the Problems

[0005] The incineration system in the present disclosure is an incineration system including an incinerator, the incinerator having a combustion chamber for burning a combustible material inside, an inlet for introducing the combustible material into the combustion chamber, and an outlet for discharging residues generated by the combustion of the combustible material from the combustion chamber. A surface where at least one of drying and combustion of the combustible material is performed in the combustion chamber is an inclined surface inclined such that the height on the inlet side is higher than the height on the outlet side. A weir portion is provided on the inclined surface, and a communication port communicating the inlet side and the outlet side on the inclined surface is provided between the weir portion and the inclined surface.

Effects of the Invention

[0006] The incineration system, incineration method, and incinerator described herein make it possible to suppress the discharge of incinerated materials that have not been sufficiently burned. [Brief explanation of the drawing]

[0007] [Figure 1] Figure 1 is a front view of the incineration system 1000 in the first embodiment. [Figure 2] Figure 2 is a cross-sectional view (AA) of the incineration system 1000 in the first embodiment. [Figure 3] Figure 3 is a detailed diagram of the combustion chamber 10 in the first embodiment. [Figure 4] Figure 4 is a detailed diagram of the combustion chamber 10 in the first embodiment. [Figure 5] Figure 5 is a detailed diagram of the combustion chamber 10 in the first embodiment. [Figure 6] Figure 6 is a detailed diagram of the combustion chamber 10 in the first embodiment. [Figure 7] Figure 7 is a detailed diagram of the combustion chamber 10 in the first embodiment. [Figure 8] Figure 8 is a detailed diagram of the combustion chamber 10 in the first embodiment. [Figure 9] Figure 9 is a diagram illustrating the hardware configuration of the control device 500. [Figure 10] Figure 10 is a diagram illustrating the functions of the control device 500. [Figure 11] Figure 11 is a flowchart illustrating the residue discharge control in the first embodiment. [Figure 12] Figure 12 is a flowchart illustrating the air supply control in the first embodiment. [Figure 13] Figure 13 is a diagram showing the configuration of the incineration system 2000 in the second embodiment. [Modes for carrying out the invention]

[0008] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. However, such descriptions should not be construed in a limited sense and do not limit the subject matter recited in the claims. Also, various changes, substitutions, and modifications can be made without departing from the spirit and scope of the present disclosure. Further, different embodiments can be appropriately combined.

[0009] [Incineration System 1000 in the First Embodiment] First, the incineration system 1000 in the first embodiment will be described. FIGS. 1 and 2 are configuration diagrams of the incineration system 1000 in the first embodiment. Specifically, FIG. 1 is a front view of the incineration system 1000 in the first embodiment. Also, FIG. 2 is a cross-sectional view taken along the line A-A of the incineration system 1000 in the first embodiment.

[0010] As shown in FIG. 1, the incineration system 1000 has, for example, an incinerator 100.

[0011] The incinerator 100 has, for example, a combustion chamber 10 for incinerating sludge 1, a post-combustion chamber 20 for burning the gas generated along with the combustion of the sludge 1 in the combustion chamber 10, a supply unit 30 for supplying the sludge 1 to the combustion chamber 10, and an exhaust unit 40 for discharging the exhaust gas from the post-combustion chamber 20.

[0012] First, the supply unit 30 will be described. The supply unit 30 has, for example, a supply pipe 31, an input pipe 32, and a pusher 33.

[0013] The supply pipe 31 is, for example, a pipe extending along the Z-axis direction, and is a pipe through which the sludge 1 is supplied from a pre-stage facility such as a dryer (not shown) by a conveyor (not shown).

[0014] The charging pipe 32 is, for example, a pipe extending along the X-axis direction, and is a pipe that communicates with one end (the end on the Z2 direction side) of the supply pipe 31 at the supply port 32a provided on the Z1 direction side. And, as shown by the solid line arrow in FIG. 1, for example, the sludge 1 in the supply pipe 31 is sequentially supplied from the supply port 32a to the charging pipe 32. Thereafter, the sludge 1 supplied into the charging pipe 32 is, as shown by the solid line arrow in FIG. 1, for example, sequentially charged into the combustion chamber 10 from the charging port 32b (the charging port 32b communicating with the inside of the combustion chamber main body 11) that opens toward the X2 direction side by the sliding of the pusher 33 that is slidable along the X-axis direction in the charging pipe 32.

[0015] Specifically, for example, when the sludge 1 is supplied from the supply pipe 31 to the charging pipe 32, the pusher 33 slides toward the X1 direction so that the tip (the end on the X2 direction side) moves to a position on the X1 direction side of the position of the supply pipe 31 in the X-axis direction. And, after the sliding of the pusher 33 toward the X1 direction is completed, the sludge 1 in the supply pipe 31 is sequentially supplied into the charging pipe 32, for example, along with the opening and closing of a valve (not shown) provided at the supply port 32a. Thereafter, the pusher 33 slides toward the X2 direction so that the tip (the end on the X2 direction side) moves to a position on the X2 direction side of the position of the supply pipe 31 in the X-axis direction, thereby charging the sludge 1 in the charging pipe 32 into the combustion chamber 10.

[0016] That is, the sludge 1 supplied from the supply pipe 31 into the charging pipe 32 is charged into the combustion chamber 10 from the charging port 32b, for example, by the tip of the pusher 33 pushing out the sludge 1 in the charging pipe 32 toward the X2 direction side.

[0017] Note that the pusher 33 may be slidable along the X-axis direction, for example, by the drive of a motor (not shown).

[0018] Furthermore, the above example described the case in which sludge 1 is introduced into the combustion chamber 10 from the supply unit 30, but it is not limited to this. Specifically, the sludge 1 may be introduced into the combustion chamber 10 from above the combustion chamber 10 (for example, from another inlet provided in the rear combustion chamber 20).

[0019] Next, the combustion chamber 10 will be described. The combustion chamber 10 includes, for example, a combustion chamber body 11, a discharge section 12, and a weir section 13.

[0020] The combustion chamber body 11 is provided, for example, on the X2 side of the supply unit 30 and forms the wall surface of the combustion chamber 10 (the Z2 side of the wall surface of the incinerator 100). In the internal space of the combustion chamber body 11, for example, the sludge 1 introduced from the input pipe 32 is sequentially dried and burned. Hereinafter, the internal space of the combustion chamber body 11 (the space in which the sludge 1 is dried and burned) will also be referred to as the processing zone S. Furthermore, hereafter, the bottom surface of the processing zone S (the surface on the Z2 side) will also be referred to as the slope Sa.

[0021] Specifically, for example, if sludge 1 introduced from the input port 32b falls directly onto the bottom surface 11a of the combustion chamber body 11, and the drying and combustion of the sludge 1 takes place directly on the bottom surface 11a of the combustion chamber body 11, then the slope Sa corresponds to the upper surface (the surface on the Z1 direction side) of the bottom surface 11a. Also, for example, if granular material (not shown) is accumulated on the bottom surface 11a, and the sludge 1 introduced from the input port 32b falls onto the layer of granular material, and the drying and combustion of the sludge 1 takes place on the layer of granular material, then the slope Sa corresponds to the upper surface (the surface on the Z1 direction side) of the layer of granular material.

[0022] Here, the inclined surface Sa is formed such that it is tilted by a predetermined angle (hereinafter also referred to as the first angle) with respect to the XY plane (horizontal direction).

[0023] Specifically, the slope Sa is configured such that, for example, the first angle, which is the angle of inclination of the slope Sa with respect to the horizontal direction (X-axis direction), is greater than the angle of repose of the residue 1a (incinerated ash 1a) generated by burning the sludge 1. Alternatively, the slope Sa is configured such that, for example, the first angle, which is the angle of inclination of the slope Sa with respect to the horizontal direction (X-axis direction), is smaller than the angle of repose of the sludge 1 introduced from the input pipe 32.

[0024] In other words, the inclination angle of the slope Sa with respect to the horizontal direction (X-axis direction) is adjusted so that, for example, the sludge 1 that has undergone combustion (residue 1a) from the sludge 1 introduced into the combustion chamber body 11 (sludge 1 that has fallen onto the slope Sa) moves further along the slope Sa toward the X2 direction and toward the Z2 direction, while the sludge 1 that has not yet undergone sufficient combustion does not move along the slope Sa. To put it another way, the inclination angle of the slope Sa with respect to the horizontal direction (X-axis direction) is adjusted so that, for example, only the residue 1a that needs to be discharged from the combustion chamber 10 moves along the slope Sa.

[0025] As a result, in the incineration system 1000 of this embodiment, it becomes possible to transport the residue 1a within the incinerator 100 without using power, for example.

[0026] Furthermore, as shown in Figure 2 below, the wall surface on the Y1 direction side of the combustion chamber body 11 is also called wall surface 11b, and the wall surface on the Y2 direction side of the combustion chamber body 11 is also called wall surface 11c.

[0027] Returning to Figure 1, the discharge section 12 is provided, for example, on the X2 direction side (the X2 direction side and the Z2 direction side) of the combustion chamber body 11, and temporarily accumulates the residue 1a that has moved along the slope Sa, and then discharges it to the outside of the incinerator 100 from the discharge port 12a provided at the lower end (the end on the Z2 direction side).

[0028] Specifically, the residue 1a accumulated in the discharge section 12 is sequentially discharged to the outside of the incinerator 100 by opening and closing a valve (not shown) provided at the discharge port 12a.

[0029] The weir 13 is, for example, provided on an inclined surface Sa and is a member that separates the combustion chamber body 11 (for example, the processing zone S) from the discharge section 12. Specifically, the weir 13 is a member provided on the inclined surface Sa on the X2 direction side, extending to the wall surface 11b and the wall surface 11c, respectively. The weir 13 may be, for example, a plate-shaped member extending in the YZ plane. In other words, the weir 13 may be, for example, a member projecting upward (in the Z1 direction).

[0030] The weir section 13 is provided, for example, at a distance from the slope Sa, as shown in Figure 1. Specifically, a communication port R1 is provided between the weir section 13 and the slope Sa, for example, to connect the inside of the combustion chamber body 11 and the inside of the discharge section 12.

[0031] In other words, even if, for example, the angle of inclination (first angle) of the slope Sa with respect to the horizontal direction (X-axis direction) is set to be smaller than the angle of repose of the sludge 1 introduced from the input pipe 32 within the combustion chamber body 11, there is a possibility that sludge 1 that has not been sufficiently burned will move along the slope Sa and be supplied to the discharge section 12. In this case, in the incineration system 1000, for example, sludge 1 that has not been sufficiently burned (hereinafter also referred to as unburned sludge 1) may be discharged from the discharge port 12a.

[0032] Therefore, in the incineration system 1000 of this embodiment, for example, a weir 13 is provided inside the combustion chamber body 11 to temporarily dam the sludge 1 (residue 1a) that has moved along the slope Sa, and to ensure time for the sludge 1 supplied into the combustion chamber body 11 from the input port 32b to be discharged from the discharge port 12a. In other words, in the incineration system 1000 of this embodiment, for example, a weir 13 is provided inside the combustion chamber body 11 to further ensure time for the unburned sludge 1 to be burned inside the combustion chamber body 11, even if the unburned sludge 1, which has not been sufficiently burned, moves to the vicinity of the weir 13. Then, in the incineration system 1000 of this embodiment, for example, the sludge 1 (sludge 1 that has been sufficiently burned) that has been temporarily dammed by the weir 13 is sequentially supplied to the discharge port 12 from the communication port R1.

[0033] As a result, in the incineration system 1000 of this embodiment, for example, it is possible to suppress the discharge of sludge 1 supplied into the combustion chamber body 11 from the input port 32b without being sufficiently burned. In other words, in the incineration system 1000 of this embodiment, for example, it is possible to suppress the discharge of unburned sludge 1 from the discharge port 12a.

[0034] Furthermore, as shown in Figure 1, the weir 13 is provided, for example, at a position where its upper end is spaced apart from the ceiling surface inside the combustion chamber body 11, and this space functions as a communication port (hereinafter also referred to as other communication ports) that supplies gas generated on the discharge side (X2 direction side) of the weir 13 to the inlet 32b side (X1 direction side) of the weir 13. In other words, the weir 13 is provided so that, for example, gas generated on the discharge side (X2 direction side) of the weir 13 is supplied to the rear combustion chamber 20.

[0035] In the example shown in Figure 1, the case in which the lower end of the weir 13 is provided at a distance from the slope Sa has been described, but it is not limited to this. Specifically, the weir 13 may be provided at a position where its lower end is not at a distance from the slope Sa. In other words, the weir 13 may be provided at the bottom surface 11a, for example, and protrude upward (towards the Z1 direction) from the bottom surface 11a. In this case, the weir 13 may be provided with one or more through holes (not shown) at the lower end side (towards the Z2 direction) that connect the inside of the combustion chamber body 11 and the inside of the discharge section 12, and each of these one or more through holes may function as a communication port R1.

[0036] Furthermore, although the example shown in Figure 1 describes a case where the upper end of the weir 13 is located at a distance from the ceiling surface inside the combustion chamber body 11, the explanation is not limited to this. Specifically, the weir 13 may be located at a distance from the ceiling surface inside the combustion chamber body 11, for example. In other words, the weir 13 may be located at the ceiling surface inside the combustion chamber body 11, and may protrude downward (towards the Z2 direction) from the ceiling surface inside the combustion chamber body 11. In this case, the weir 13 may be provided with one or more through holes (not shown) at the upper end side (towards the Z1 direction) that connect the inside of the combustion chamber body 11 and the inside of the discharge section 12, and each of these one or more through holes may function as another communication opening.

[0037] Next, the rear combustion chamber 20 will be described. The rear combustion chamber 20 has, for example, a rear combustion chamber body 21.

[0038] The rear combustion chamber body 21 is provided, for example, above the combustion chamber body 11 (on the Z1 side) and forms the wall surface of the rear combustion chamber 20 (the Z1 side of the wall surface of the incinerator 100). The rear combustion chamber body 21 has an internal space that communicates with the internal space of the combustion chamber body 11, and burns the gas generated in the internal space as a result of the combustion of sludge 1 in the combustion chamber body 11 (processing zone S).

[0039] In other words, the gas generated by the combustion of the sludge 1 in the combustion chamber body 11 rises, for example, from inside the combustion chamber body 11 towards the rear combustion chamber body 21, as shown by the dotted arrow in Figure 1. The rear combustion chamber body 21 then completely combusts the gas that has risen from inside the combustion chamber body 11.

[0040] As a result, in the incineration system 1000 of this embodiment, for example, it becomes possible to suppress the emission of CO and N2O contained in the gas generated by the combustion of sludge 1 in the combustion chamber body 11.

[0041] Next, the discharge section 40 will be described. The discharge section 40 has, for example, a discharge pipe 41.

[0042] The exhaust pipe 41 is, for example, a pipe extending along the X-axis direction and communicating with the wall surface of the rear combustion chamber body 21 (the wall surface on the X2 direction side) on the X1 direction side. As shown by the dotted arrow in Figure 1, exhaust gas discharged from the rear combustion chamber body 21 is supplied to the exhaust pipe 41, for example, through the outlet 41a. Subsequently, the exhaust gas discharged from the rear combustion chamber body 21 through the outlet 41a is used to, for example, a white smoke prevention air preheater (not shown) that generates heated air (white smoke prevention air) to prevent water vapor in the exhaust gas from appearing as white smoke, a dust collector (not shown) that collects impurities in the exhaust gas, or to bring the exhaust gas into contact with water to remove SO4 from the exhaust gas. X The materials are sequentially transported to a scrubbing tower (not shown) that removes components such as those mentioned above.

[0043] [Details of the combustion chamber 10 in the first embodiment] Next, we will describe the details of the combustion chamber 10 in the first embodiment. Figures 3 to 8 are detailed configuration diagrams of the combustion chamber 10 in the first embodiment. The following description will focus on the case where granular material is deposited on the bottom surface 11a.

[0044] As shown in Figure 3, for example, a weir 18 is provided on the bottom surface 11a of the combustion chamber body 11.

[0045] The weir section 18 is, for example, a member that protrudes upward (towards the Z1 direction) from the bottom surface 11a and extends to the wall surface 11b and the wall surface 11c, respectively. Specifically, the weir section 18 is, for example, a plate-shaped member that extends in the YZ plane.

[0046] Then, in the space defined by the wall surface on the inlet 32b side of the weir section 18 (the wall surface on the X1 direction side), the bottom surface 11a, the wall surface 11b, and the wall surface 11c, a filled section 2 consisting of a layer of granular material is formed by, for example, accumulating (filling) granular material, as shown in Figure 3. The granular material may be, for example, sand.

[0047] In other words, the granular material is deposited on the bottom surface 11a while being dammed by, for example, the weir 18. Therefore, the granular material can form the filling section 2 without moving (falling) on ​​the bottom surface 11a toward the discharge port 12a side (X2 direction and Z2 direction side).

[0048] Therefore, in the incineration system 1000 of this embodiment, for example, by causing the sludge 1 introduced from the input port 32b to fall onto the surface of the filling section 2, it is possible to prevent the sludge 1 introduced from the input port 32b from falling all at once toward the discharge port 12a side (X2 direction side and Z2 direction side). As a result, in the incineration system 1000, for example, it is possible to prevent the sludge 1 that has not been sufficiently burned from moving to the vicinity of the weir section 13.

[0049] Furthermore, in the incineration system 1000 of this embodiment, compared to, for example, a case where the filling section 2 is not formed on the bottom surface 11a, it is possible to create a condition in which the sludge 1 introduced from the inlet 32b becomes integrated with the granular material, making it easier for it to move to the vicinity of the weir section 13, and it is possible to suppress the occurrence of a condition in which the sludge 1 introduced from the inlet 32b remains too close to the inlet 32b.

[0050] Furthermore, in the incineration system 1000 of this embodiment, for example, it becomes possible to prevent the combustion of sludge 1 on the bottom surface 11a, and to protect the bottom surface 11a, which is made of iron plate or the like.

[0051] Furthermore, in the example shown in Figure 3, the surface of the filling portion 2 functions, for example, as the slope Sa described in Figure 1, and is formed to be inclined by a first angle with respect to the XY plane (horizontal direction).

[0052] Therefore, the residue 1a, whose angle of repose has become smaller than the first angle as combustion progresses, moves sequentially on the surface of the packing section 2, for example. On the other hand, the sludge 1, whose combustion has not progressed sufficiently and whose angle of repose has not become smaller than the first angle, continues to burn without moving on the surface of the packing section 2, for example.

[0053] As a result, in the incineration system 1000 of this embodiment, it becomes possible to transport the residue 1a within the incinerator 100 without using power, for example.

[0054] Returning to Figure 3, the combustion chamber body 11 is provided with, for example, air supply pipes 15a, 15b, 15c, 15d, 15e, 15f, 15g, and 15h. Hereinafter, air supply pipes 15a, 15b, 15c, 15d, 15e, 15f, 15g, and 15h will be collectively referred to simply as air supply pipe 15 or air supply unit 15.

[0055] Each of the air supply pipes 15 is arranged, for example, along the upper surface of the bottom surface 11a. Specifically, each of the air supply pipes 15 is arranged, for example, at equal intervals along the upper surface of the bottom surface 11a. Also, each of the air supply pipes 15 is arranged, for example, so that the distance from the upper surface of the bottom surface 11a is uniform. Each of the air supply pipes 15 then ejects combustion air supplied from an air supply device (not shown) in an arbitrary direction, for example. Specifically, each of the air supply pipes 15 ejects combustion air supplied from an air supply device in a direction opposite to the direction relative to the bottom surface 11a (in the direction of the solid arrow in Figure 3).

[0056] Furthermore, the combustion air supplied from each air supply pipe 15 (for example, air supply pipe 15g or air supply pipe 15h) located on the outlet 12a side is supplied, for example, to the residue 1a accumulated on the surface of the filling section 2. Therefore, the combustion air supplied from each air supply pipe 15 located on the outlet 12a side functions, for example, as air to lower the temperature of the residue 1a accumulated on the surface of the filling section 2.

[0057] Furthermore, while the example shown in Figure 3 includes eight air supply pipes 15 within the combustion chamber body 11, it is not limited to this. Specifically, the combustion chamber body 11 may include, for example, a number of air supply pipes 15 other than eight.

[0058] Furthermore, as shown in Figure 3, the combustion chamber body 11 is provided with, for example, thermometers 16a, 16b, 16c, 16d, 16e, 16f, and 16g. Hereinafter, thermometers 16a, 16b, 16c, 16d, 16e, 16f, and 16g will be collectively referred to simply as thermometer 16.

[0059] Each of the thermometers 16 is installed, for example, at a position further from the bottom surface 11a than the air supply pipe 15, and aligned along the upper surface of the bottom surface 11a. Specifically, each of the thermometers 16 is installed, for example, at equal intervals along the upper surface of the bottom surface 11a. Also, each of the thermometers 16 is installed, for example, at a uniform distance from the upper surface of the bottom surface 11a. Each of the thermometers 16 measures, for example, the temperature at the position where each thermometer 16 is installed (for example, the combustion temperature of the sludge 1).

[0060] In the example shown in Figure 3, seven thermometers 16 are provided inside the combustion chamber body 11, but this is not limited to this configuration. Specifically, for example, a number of thermometers 16 other than seven may be provided inside the combustion chamber body 11.

[0061] Furthermore, as shown in Figure 3, the combustion chamber body 11 is equipped with, for example, thermometers 17a, 17b, 17c, and 17d. Hereinafter, thermometers 17a, 17b, 17c, and 17d will be collectively referred to simply as thermometer 17.

[0062] Each of the thermometers 17 is positioned, for example, further from the upper surface of the bottom surface 11a than thermometer 16. Each of the thermometers 17 measures, for example, the temperature at the position where each thermometer 17 is installed (for example, the temperature of the gas generated as a result of the combustion of the sludge 1).

[0063] In the example shown in Figure 3, four thermometers 17 are provided inside the combustion chamber body 11, but this is not limited to this configuration. Specifically, for example, a number of thermometers 17 other than four may be provided inside the combustion chamber body 11.

[0064] Furthermore, as shown in Figure 3, a guide member 19, which is a plate-shaped member, is provided inside the combustion chamber body 11, for example, near the inlet 32b.

[0065] The guide member 19 is provided, for example, at a position where its height from the top surface of the bottom surface 11a is a predetermined height, thereby preventing the height of the sludge 1 accumulated near the input port 32b from exceeding a predetermined height, and guiding the sludge 1 further supplied from the input pipe 32 toward the discharge port 12a side (X2 direction side and Z2 direction side).

[0066] When sludge 1 is introduced into the combustion chamber body 11 from the inlet 32b, the sludge 1 introduced from the inlet 32b falls to various positions on the surface of the filling section 2 on the inlet 32b side, as shown in Figure 4. Hereinafter, the positions where the sludge 1 introduced from the inlet 32b falls (the positions where it falls on the surface of the filling section 2) will also be simply referred to as the falling positions. Subsequently, when sludge 1 is introduced further from the inlet 32b, the sludge 1 introduced from the inlet 32b falls while spreading its falling positions toward the discharge section 12 side (the X2 direction side and the Y2 direction side), as shown in Figure 5.

[0067] Here, the first angle, which is the inclination angle of the surface of the filling section 2 with respect to the horizontal direction (X-axis direction), is set to be smaller than, for example, the angle of repose of the sludge 1 (sludge 1 introduced into the inlet 32b). Therefore, the sludge 1 that falls onto the surface of the filling section 2 remains, for example, near the position where each sludge 1 fell.

[0068] Next, the sludge 1 that falls onto the surface of the filling section 2 is burned at the point where each sludge 1 falls by combustion air supplied from each air supply pipe 15. Then, of the sludge 1 that falls onto the surface of the filling section 2, the residue 1a whose combustion has progressed sufficiently and whose angle of repose has become smaller than the first angle begins to move gradually toward the discharge port 12a side (the X2 direction side and the Y2 direction side), as shown in Figure 6. On the other hand, of the sludge 1 that falls onto the surface of the filling section 2, the sludge 1 whose angle of repose has not become smaller than the first angle continues to burn in the vicinity of the point where each sludge 1 falls without moving across the surface of the filling section 2.

[0069] Subsequently, the residue 1a that has moved to the vicinity of the discharge section 12 is accumulated, for example, within the discharge section 12, as shown in Figure 7.

[0070] Specifically, the residue 1a that has moved to the vicinity of the discharge section 12 is temporarily blocked, for example, by the weir section 13, and then moves into the discharge section 12 through the communication port R1.

[0071] In particular, the weir section 13 temporarily dams up sludge 1 (unburned sludge 1) that has not yet been sufficiently burned, even if it moves close to the weir section 13, before supplying it into the discharge section 12.

[0072] Then, as shown in Figure 8, for example, when the height of the residue 1a on the inlet 32b side (X1 direction side) of the weir 13, in other words, the height of the residue 1a being blocked by the weir 13, reaches a predetermined height, the discharge section 12 will discharge the residue 1a from the discharge port 12a. Specifically, in this case, the discharge section 12 will discharge, for example, a predetermined amount of residue 1a.

[0073] Furthermore, if some of the granular material constituting the filling section 2 is discharged from the outlet 12a together with the residue 1a, then in the combustion chamber 10, for example, some of the residue 1a may function as at least part of the filling section 2.

[0074] As described above, the incineration system 1000 in this embodiment includes, for example, an incinerator 100. The incinerator 100 includes, for example, a combustion chamber 10 in which sludge 1 is burned, an input port 32b into which sludge 1 is introduced into the combustion chamber 10, and an output port 12a for discharging the residue 1a generated by the combustion of sludge 1 from the combustion chamber 10. Furthermore, in the incineration system 1000 in this embodiment, the inclined surface Sa in the combustion chamber 10 where at least one of drying and combustion of the sludge 1 takes place is, for example, an inclined surface such that the height on the input port 32b side is higher than the height on the output port 12a side. Furthermore, in the incineration system 1000 in this embodiment, the inclination angle of the inclined surface Sa with respect to the horizontal direction (X-axis direction) is, for example, an angle greater than the angle of repose of the residue 1a and smaller than the angle of repose of the sludge 1.

[0075] Furthermore, in the incineration system 1000 of this embodiment, for example, a weir 13 is provided on the slope Sa. And, in the incineration system 1000 of this embodiment, a communication port R1 is provided between the weir 13 and the slope Sa, for example, connecting the input port 32b side and the discharge port 12a side on the slope Sa.

[0076] As a result, in the incineration system 1000 of this embodiment, for example, it becomes possible to adjust the system so that the residue 1a of the sludge 1 that has undergone combustion moves (falls) along the slope Sa, and also to adjust the system so that the sludge 1 that is currently being burned (sludge 1 before it becomes residue 1a) does not move along the slope Sa.

[0077] Therefore, in the incineration system 1000 of this embodiment, for example, it becomes possible to transport the sludge 1 within the incinerator 100 without using power. Consequently, in the incineration system 1000 of this embodiment, for example, it becomes possible to suppress energy such as electricity required for transporting the sludge 1 within the incinerator 100, and thus it becomes possible to suppress the operating costs of the incinerator 100. Furthermore, in the incineration system 1000 of this embodiment, for example, by eliminating the need to use power, it becomes possible to reduce the number of parts required for transporting the residue 1a. Consequently, in the incineration system 1000 of this embodiment, for example, it becomes possible to suppress the load and cost required for maintenance.

[0078] Furthermore, in the incineration system 1000 of this embodiment, even if, for example, sludge 1 that has not been sufficiently burned (unburned sludge 1) moves to the vicinity of the discharge section 12, it becomes possible to temporarily dam the sludge 1 before supplying it into the discharge section 12. Therefore, in the incineration system 1000 of this embodiment, for example, it becomes possible to suppress the discharge of sludge 1 supplied from the input port 32b into the combustion chamber body 11 without being sufficiently burned. In other words, in the incineration system 1000 of this embodiment, for example, it becomes possible to suppress the discharge of unburned sludge 1 from the discharge port 12a.

[0079] Furthermore, in the incineration system 1000 of this embodiment, the slope Sa is, for example, the upper surface (the surface on the Z1 direction side) of the bottom surface 11a of the combustion chamber 10.

[0080] Furthermore, in the incineration system 1000 of this embodiment, a weir 18 is provided on the bottom surface 11a of the combustion chamber 10, for example, projecting upward and extending to both walls of the combustion chamber 10 (walls 11b and 11c). In the incineration system 1000 of this embodiment, a filling section 2 is formed in the space defined by the wall on the input port 32b side of the weir 18, the bottom surface 11a of the combustion chamber body 11, and both walls of the combustion chamber body 11 (walls 11b and 11c), by filling it with, for example, granular material and residue 1a. Furthermore, in this case, the slope Sa is, for example, the upper surface of the filling section 2.

[0081] Furthermore, in the incineration system 1000 of this embodiment, the discharge port 12a discharges the residue 1a that has moved along the slope Sa from the input port 32b side to the discharge port 12a side from inside the combustion chamber 10.

[0082] As a result, in the incineration system 1000 of this embodiment, for example, it is possible to prevent the sludge 1 introduced from the input port 32b from falling all at once toward the discharge port 12a side (in the X2 direction and Z2 direction). Therefore, in the incineration system 1000, for example, it is possible to prevent sludge 1 that has not been sufficiently burned (unburned sludge 1) from being discharged from the discharge port 12a.

[0083] Furthermore, in the incineration system 1000 of this embodiment, compared to, for example, a case where the filling section 2 is not formed on the bottom surface 11a, it is possible to create a condition in which the sludge 1 introduced from the input port 32b becomes integrated with the granular material, making it easier for it to move toward the discharge port 12a side (X2 direction side and Y2 direction side), and it is possible to suppress the occurrence of a condition in which the sludge 1 introduced from the input port 32b remains too long toward the input port 32b side.

[0084] Furthermore, in the incineration system 1000 of this embodiment, for example, it becomes possible to prevent the combustion of sludge 1 on the bottom surface 11a, and to protect the bottom surface 11a, which is made of iron plate or the like.

[0085] [Control device 500 in the first embodiment] Next, we will explain the control device 500. Figures 9 and 10 illustrate the control device 500. Specifically, Figure 9 illustrates the hardware configuration of the control device 500. Figure 10 illustrates the functions of the control device 500.

[0086] The incineration system 1000 includes, for example, a control device 500, as shown in Figures 9 and 10.

[0087] As shown in Figure 9, the control device 500 is, for example, an electronic device having an electronic circuit. Specifically, the control device 500 is a computer device having, for example, a CPU 501 which is a processor, a memory 502, a communication device 503, and a storage medium 504. Each part is connected to the others, for example, via a bus 505.

[0088] The storage medium 504 has, for example, a program storage area (not shown) for storing a program 510 for performing various controls. The storage medium 504 also has, for example, an information storage area 530 for storing information used when performing various controls. The storage medium 504 may be, for example, an HDD (Hard Disk Drive) or an SSD (Solid State Drive).

[0089] The CPU 501 performs various controls, for example, by executing a program 510 loaded into memory 502 from storage medium 504.

[0090] The communication device 503 accesses, for example, an operating terminal (not shown) where an administrator inputs necessary information via a network (not shown), such as the Internet.

[0091] The control device 500 then performs control (hereinafter also referred to as residue discharge control) to discharge the residue 1a from the discharge port 12a, for example, according to the accumulation status of the residue 1a on the inlet port 32b side (X1 direction side) of the weir section 13.

[0092] Specifically, as shown in Figure 10, the control device 500 determines the accumulation status of residue 1a on the inlet 32b side of the weir 13 based on the temperatures measured by each thermometer 16 installed on the inlet 32b side of the weir 13. Then, the control device 500 controls the discharge of residue 1a from the discharge port 12a according to the determination result of the accumulation status of residue 1a on the inlet 32b side of the weir 13.

[0093] More specifically, the control device 500 determines, for example, whether there is a temperature among the temperatures measured by each thermometer 16 installed on the inlet 32b side of the weir section 13 that is below a predetermined temperature (hereinafter also referred to as the first temperature) set in advance for each thermometer 16. If it determines that there is a thermometer 16 that has measured a temperature below the first temperature, the control device 500 controls, for example, the discharge of a predetermined amount of residue 1a from the discharge port 12a.

[0094] In other words, the case in which the temperature of the thermometer 16 installed on the inlet 32b side of the weir section 13 falls below the first temperature is, as shown in Figure 8, for example, when the residue 1a on the inlet 32b side of the weir section 13 has accumulated to a height above the thermometer 16 (for example, thermometer 16f and thermometer 16g) installed on the inlet 32b side of the weir section 13, causing the temperature measured by the thermometer 16 installed on the inlet 32b side of the weir section 13 to drop. Therefore, in this case, the control device 500, for example, discharges the residue 1a from the discharge port 12a, thereby supplying the sludge 1 accumulated on the inlet 32b side of the weir section 13 to the discharge port 12, and reducing the height of the residue 1a accumulated on the inlet 32b side of the weir section 13.

[0095] The control device 500 may, for example, determine the accumulation status of the residue 1a on the inlet 32b side of the weir 13 based on the height of the residue 1a (the height of the residue 1a accumulated on the inlet 32b side of the weir 13) measured by a height sensor (not shown) installed in the combustion chamber body 11. The control device 500 may, for example, control the discharge of the residue 1a from the discharge port 12a according to the determination result of the accumulation status of the residue 1a on the inlet 32b side of the weir 13.

[0096] Specifically, the control device 500 may, for example, control the system so that a predetermined amount of residue 1a is discharged from the discharge port 12a when it determines that the height of the residue 1a measured by a height sensor installed in the combustion chamber 10 (the height of the residue 1a accumulated on the inlet 32b side of the weir 13) exceeds a predetermined height (hereinafter also referred to as the first height).

[0097] As a result, in the incineration system 1000 of this embodiment, it becomes possible to control the height of the residue 1a accumulated on the input port 32b side of the weir 13 to be reduced. Specifically, in the incineration system 1000, it becomes possible to control the height of the residue 1a accumulated on the input port 32b side of the weir 13 to be less than or equal to a first height. Therefore, in the incineration system 1000 of this embodiment, it becomes possible to suppress the residue 1a accumulated on the input port 32b side of the weir 13 from overflowing the weir 13 and moving to the discharge section 12. Consequently, in the incineration system 1000 of this embodiment, it becomes possible to suppress the discharge of unburned sludge 1 from the discharge port 12a.

[0098] Furthermore, the control device 500 controls the supply of combustion air through each air supply pipe 15 (hereinafter also referred to as air supply control) according to the combustion status of the sludge 1 in the combustion chamber body 11.

[0099] Specifically, as shown in Figure 10, the control device 500 controls the supply of combustion air through the air supply pipe 15 based on the temperature measured by each thermometer 17 installed in the combustion chamber body 11, for example.

[0100] More specifically, the control device 500 determines, for example, whether there is a temperature among the temperatures measured by each thermometer 17 installed in the combustion chamber body 11 that is below a predetermined temperature (hereinafter also referred to as the second temperature) set in advance for each thermometer 17. If it determines that there is a thermometer 17 (hereinafter also referred to as the specific thermometer 17) that has measured a temperature below the second temperature, the control device 500 controls the amount of combustion air supplied from an air supply pipe 15 installed near the specific thermometer 17 (for example, an air supply pipe 15 installed at the closest position to the installation location of the specific thermometer 17) to increase the amount of combustion air supplied.

[0101] As a result, in the incineration system 1000 of this embodiment, it becomes possible to control, for example, how the drying and combustion of the sludge 1 performed at each position within the combustion chamber body 11 (processing zone S) are carried out sufficiently.

[0102] The control device 500 may, for example, control the supply of combustion air through the air supply pipe 15 based on the temperature measured by each thermometer 16 installed in the combustion chamber body 11.

[0103] Furthermore, the control device 500 may include, for example, an FPGA (Field Programmable Gate Array) or an ASIC (Application Specific Integrated Circuit). In addition, the control device 500 may include, for example, a PIC (Peripheral Interface Controller). In this case, the residue discharge control and air supply control may be performed by, for example, an FPGA or ASIC.

[0104] [Residue discharge control in the first embodiment] Next, we will describe the residue discharge control in the first embodiment. Figure 11 is a flowchart illustrating the residue discharge control in the first embodiment. Below, we will describe the residue discharge control when using the height of the residue 1a (the height of the residue 1a accumulated on the inlet 32b side of the weir 13) measured by a height sensor installed in the combustion chamber body 11.

[0105] As shown in Figure 11, the control device 500 waits until it is time to acquire the height of the residue 1a (the height of the residue 1a on the side of the inlet 32b of the weir 13) measured by a height sensor installed in the combustion chamber body 11 (hereinafter also referred to simply as the acquisition timing or the first acquisition timing) (NO in step S1 of Figure 11). The first acquisition timing may be a periodic timing, such as every minute.

[0106] Then, when the first acquisition timing arrives, the control device 500 acquires, for example, the height of the residue 1a measured by the height sensor (YES in step S1 of Figure 11, step S2 of Figure 11).

[0107] Next, the control device 500 determines, for example, whether the height of the residue 1a obtained in step S2 exceeds the first height (step S3 in Figure 11).

[0108] As a result, for example, if it is determined that the height of the residue 1a obtained in step S2 exceeds the first height, the control device 500 controls the discharge so that a predetermined amount of residue 1a is discharged from the discharge port 12a (YES in step S3 in Figure 11, step S4 in Figure 11).

[0109] For example, if the control device 500 determines that the height of the residue 1a obtained in step S2 does not exceed the first height, it may, for example, not perform step S4 (NO in step S3 of Figure 11).

[0110] [Air supply control in the first embodiment] Next, we will describe the air supply control in the first embodiment. Figure 12 is a flowchart illustrating the air supply control in the first embodiment.

[0111] As shown in Figure 12, the control device 500 waits until, for example, the acquisition timing for the temperature measured by each thermometer 17 (hereinafter also referred to simply as the acquisition timing or the second acquisition timing) (NO in step S11 of Figure 12). The second acquisition timing may be a periodic timing, such as every minute.

[0112] Then, when the second acquisition timing arrives, the control device 500 acquires the temperature measured by each thermometer 17, for example (YES in step S11 in Figure 12, step S12 in Figure 12).

[0113] Next, the control device 500 determines, for example, whether there is a thermometer 17 (a specific thermometer 17) among the thermometers 17 whose temperature obtained in step S12 is lower than the second temperature corresponding to that thermometer 17 (step S13 in Figure 12).

[0114] As a result, for example, if the control device 500 determines that there is a thermometer 17 whose temperature obtained in step S12 is lower than the second temperature corresponding to each thermometer 17, the control device 500 controls, for example, the amount of combustion air supplied from the air supply pipe 15 located near the thermometer 17 that was determined to exist (step S14 in Figure 12).

[0115] In other words, the control device 500 controls the amount of combustion air supplied from each air supply pipe 15 provided in the combustion chamber body 11, for example, according to at least one of the drying status and combustion status of the sludge 1 in the combustion chamber 10.

[0116] For example, if the control device 500 determines that there is no thermometer 17 whose temperature obtained in step S12 is lower than the second temperature corresponding to each thermometer 17, the control device 500 may, for example, not perform step S14 (NO in step S13 of Figure 12).

[0117] Thus, the incineration system 1000 in this embodiment includes a control device 500 that controls the discharge of residue 1a from the discharge port 12a according to the accumulation of residue 1a on the input port 32b side of the weir section 13.

[0118] As a result, in the incineration system 1000 of this embodiment, it becomes possible to control the height of the residue 1a accumulated on the input port 32b side of the weir 13 to be reduced. Specifically, in the incineration system 1000, it becomes possible to control the height of the residue 1a accumulated on the input port 32b side of the weir 13 to be less than or equal to a first height. Therefore, in the incineration system 1000 of this embodiment, it becomes possible to suppress the residue 1a accumulated on the input port 32b side of the weir 13 from overflowing the weir 13 and moving to the discharge section 12. Consequently, in the incineration system 1000 of this embodiment, it becomes possible to suppress the discharge of unburned sludge 1 from the discharge port 12a.

[0119] Furthermore, the incineration system 1000 in this embodiment includes, for example, an air supply pipe 15 that supplies combustion air into the combustion chamber 10, and a control device 500 that controls the supply of combustion air by the air supply pipe 15 according to at least one of the drying status or combustion status of the sludge 1 in the combustion chamber 10.

[0120] As a result, in the incineration system 1000 of this embodiment, it becomes possible to control, for example, the drying and combustion of the sludge 1 at each position within the combustion chamber body 11 to ensure that these processes are carried out sufficiently.

[0121] [Incineration system 2000 in the second embodiment] Next, we will describe the incineration system 2000 in the second embodiment. Figure 13 is a configuration diagram of the incineration system 2000 in the second embodiment. Specifically, Figure 13 is a front view of the incineration system 2000 in the second embodiment. The differences from the incineration system 1000 in the first embodiment will be explained below.

[0122] The combustion chamber 10 in the second embodiment further includes, in addition to the configurations of the combustion chamber 10 in the first embodiment, a weir 14a (hereinafter also referred to as the first weir 14a) and a weir 14b (hereinafter also referred to as the second weir 14b).

[0123] The weir section 14a is a member provided, for example, on the slope Sa on the X1 direction side, extending to the wall surface 11b and the wall surface 11c, respectively. Specifically, the weir section 14a may be, for example, a plate-shaped member extending in the YZ plane. In other words, the weir section 14a may be, for example, a member provided to project upward (in the Z1 direction).

[0124] The weir section 14a is provided, for example, at a distance from the slope Sa, as shown in Figure 13, with its lower end separated from it. Specifically, a communication port R2a is provided between the lower end of the weir section 14a and the slope Sa, for example, to connect the drying zone S1 and the first combustion zone S2. The drying zone S1 is, for example, a space within the treatment zone S where the sludge 1 supplied from the input port 32b is dried. The first combustion zone S2 is, for example, a space within the treatment zone S where the sludge 1 that has been dried in the drying zone S1 is burned. Specifically, the first combustion zone S2 is, for example, a space where volatile components contained in the sludge 1 are burned.

[0125] The weir section 14b is a member provided, for example, at a position between the weir section 14a and the weir section 13 on the slope Sa, extending to the wall surface 11b and the wall surface 11c, respectively. Specifically, the weir section 14b may be, for example, a plate-shaped member extending in the YZ plane. In other words, the weir section 14b may be, for example, a member provided to project upward (in the Z1 direction).

[0126] The weir section 14b is provided, for example, at a distance from the slope Sa, as shown in Figure 13, with its lower end separated from it. Specifically, a communication port R2b is provided between the lower end of the weir section 14b and the slope Sa, for example, to connect the first combustion zone S2 and the second combustion zone S3. The second combustion zone S3 is, for example, a space within the treatment zone S where the sludge 1 that has been combusted in the first combustion zone S2 is further combusted. Specifically, the second combustion zone S3 is, for example, a space where the fixed carbon contained in the sludge 1 is combusted.

[0127] In other words, in the combustion chamber 10 of this embodiment, for example, in addition to the weir 13 (hereinafter also referred to as the third weir 13), the processing zone S is divided into multiple zones by having weirs 14a and 14b.

[0128] Specifically, in the combustion chamber 10 of this embodiment, for example, the space on the side of the inlet 32b (X1 direction side) from the weir 14a functions as the drying zone S1. Also, in the combustion chamber 10 of this embodiment, for example, the space between the weir 14a and the weir 14b functions as the first combustion zone S2. Also, in the combustion chamber 10 of this embodiment, for example, the space on the side of the outlet 12a (X2 direction side) from the weir 14b functions as the second combustion zone S3.

[0129] More specifically, in the combustion chamber 10 of this embodiment, for example, a weir 14a is provided inside the combustion chamber body 11 to temporarily dam the sludge 1 supplied to the drying zone S1 from the input port 32b, thereby ensuring time for the sludge 1 supplied to the drying zone S1 to dry within the drying zone S1. Then, in the combustion chamber 10 of this embodiment, for example, the sludge 1 that has been temporarily dammed by the weir 14a (sludge 1 after drying) is sequentially supplied to the first combustion zone S2 from the communication port R2a.

[0130] Furthermore, in the combustion chamber 10 of this embodiment, for example, a weir 14b is provided inside the combustion chamber body 11 to temporarily dam the sludge 1 supplied to the first combustion zone S2 from the communication port R2a, thereby ensuring sufficient time for the sludge 1 supplied to the first combustion zone S2 to be burned within the first combustion zone S2. Then, in the combustion chamber 10 of this embodiment, for example, the sludge 1 (sludge 1 in which combustion has progressed) that has been temporarily dammed by the weir 14b is sequentially supplied to the second combustion zone S3 from the communication port R2b.

[0131] Furthermore, as shown in Figure 13, the weir 14a is provided, for example, at a distance from the ceiling surface inside the combustion chamber body 11, and this distance functions as another communication port (another communication port that supplies gas generated on the discharge port 12 side (X2 direction side) from the weir 14a to the inlet port 32b side (Z1 direction side) from the weir 14a).

[0132] Furthermore, as shown in Figure 13, the weir section 14b is provided, for example, at a distance from the ceiling surface inside the combustion chamber body 11, and this distance functions as another communication port (another communication port that supplies gas generated on the discharge section 12 side (X2 direction side) from the weir section 14b to the inlet 32b side (Z1 direction side) from the weir section 14b).

[0133] Thus, in the incineration system 2000 of this embodiment, the combustion chamber 10 includes, for example, a drying zone S1 for drying the sludge 1, a first combustion zone S2 for burning the sludge 1 dried in the drying zone S1, and a second combustion zone S3 for burning the sludge 1 burned in the first combustion zone S2.

[0134] Specifically, in the incineration system 2000 of this embodiment, the combustion chamber 10 includes, for example, a first weir 14a that separates the drying zone S1 from the first combustion zone S2, and a second weir 14b that separates the first combustion zone S2 from the second combustion zone S3. In the incineration system 2000 of this embodiment, a first communication port R2a is provided between the first weir 14a and the slope Sa, for example, to connect the inside of the drying zone S1 and the inside of the first combustion zone S2. In addition, in the incineration system 2000 of this embodiment, a second communication port R2b is provided between the second weir 14b and the slope Sa, to connect the inside of the first combustion zone S2 and the inside of the second combustion zone S3.

[0135] Furthermore, in the incineration system 2000 of this embodiment, the combustion chamber 10 has, for example, a third weir 13 that separates the second combustion zone S3 from the space on the discharge port 12a side (inside the discharge section 12). In the incineration system 2000 of this embodiment, a communication port R1 (hereinafter also referred to as the third communication port R1) is provided between the third weir 13 and the slope Sa, for example, that connects the second combustion zone S3 from the space on the discharge port 12a side (inside the discharge section 12).

[0136] As a result, in the incineration system 2000 of this embodiment, it becomes possible to control the drying and combustion of the sludge 1 at each position within the combustion chamber body 11 to be more sufficiently carried out. Therefore, in the incineration system 2000 of this embodiment, it becomes possible to suppress the discharge of unburned sludge 1 from the discharge port 12a, for example.

[0137] In this embodiment, the air supply pipe 15 may, for example, pass through the space on the outlet 12a side (inside the outlet section 12) before communicating with the inside of the combustion chamber 10.

[0138] As a result, the incineration system 2000 in this embodiment can, for example, transfer the thermal energy of the residue 1a accumulated in the discharge section 12 to the combustion air in the air supply pipe 15, thereby raising the temperature of the combustion air supplied to the combustion chamber 10.

[0139] Specifically, in the incineration system 2000 of this embodiment, for example, it becomes possible to supply combustion air heated by the thermal energy of the residue 1a accumulated in the discharge section 12 to the drying zone S1, thereby improving the drying efficiency of the sludge in the drying zone S1.

[0140] Furthermore, in the incineration system 2000 of this embodiment, for example, by returning the thermal energy of the residue 1a accumulated in the discharge section 12 back into the combustion chamber 10, it becomes possible to increase the amount of electricity generated by waste heat power generation using the thermal energy of the exhaust gas discharged from the incinerator 100 (discharge section 40).

[0141] Furthermore, the sludge 1 supplied into the combustion chamber 10 from the inlet 32b is reduced in volume by drying in the drying zone S1, for example, and then further reduced in volume by combustion in the first combustion zone S2. For this reason, the weir 14a may be configured such that, for example, the volume of the first combustion zone S2 is smaller than the volume of the drying zone S1. Also, the weir 14b may be configured such that, for example, the volume of the second combustion zone S3 is smaller than the volume of the first combustion zone S2.

[0142] Specifically, the weir section 14a may be provided such that, for example, the bottom area of ​​the first combustion zone S2 (the area of ​​the slope Sa included in the first combustion zone S2) is smaller than the bottom area of ​​the drying zone S1 (the area of ​​the slope Sa included in the drying zone S1). Similarly, the weir section 14b may be provided such that, for example, the bottom area of ​​the second combustion zone S3 (the area of ​​the slope Sa included in the second combustion zone S3) is smaller than the bottom area of ​​the first combustion zone S2 (the area of ​​the slope Sa included in the first combustion zone S2). Furthermore, the height of the weir section 14b may be lower than the height of the weir section 14a.

[0143] Furthermore, the size of the communication port R2b may be smaller than, for example, the size of the communication port R2a. Also, the size of the communication port R1 may be smaller than, for example, the size of the communication port R2b.

[0144] Specifically, the height of the communication opening R2b (the height of the lower end of the weir section 14b) may be lower than, for example, the height of the communication opening R2a (the height of the lower end of the weir section 14a). Also, the height of the communication opening R1 (the height of the lower end of the weir section 13) may be lower than, for example, the height of the communication opening R2b (the height of the lower end of the weir section 14b).

[0145] Furthermore, although the above example described the case in which a weir 13, a weir 14a, and a weir 14b are provided within the combustion chamber 10, the invention is not limited to this. Specifically, the incineration system 2000 in this embodiment may, for example, not have a weir 13. Also, the incineration system 2000 in this embodiment may, for example, have only a weir 14a, or only a weir 14b, among the weir 13, a weir 14a, and a weir 14b.

[0146] Furthermore, in this embodiment, the control device 500 may, in the residue discharge control, perform, for example, control to discharge the residue 1a from the discharge port 12a according to the accumulation status of the residue 1a in the second combustion zone S3.

[0147] Furthermore, in this embodiment, the control device 500 may, for example, control the supply of combustion air through the air supply pipe 15 provided in the drying zone S1 based on the temperature measured by a thermometer 17 provided in the drying zone S1 (or near the drying zone S1), control the supply of combustion air through the air supply pipe 15 provided in the first combustion zone S2 based on the temperature measured by a thermometer 17 provided in the first combustion zone S2 (or near the first combustion zone S2), and further control the supply of combustion air through the air supply pipe 15 provided in the second combustion zone S3 based on the temperature measured by a thermometer 17 provided in the second combustion zone S3 (or near the second combustion zone S3).

[0148] Specifically, the control device 500 may, for example, control the amount of combustion air supplied from the air supply pipe 15 in the drying zone S1 to increase if the temperature measured by the thermometer 17 installed in the drying zone S1 (or near the drying zone S1) is below the second temperature corresponding to the drying zone S1. Furthermore, the control device 500 may, for example, control the amount of combustion air supplied from the air supply pipe 15 in the first combustion zone S2 to increase if the temperature measured by the thermometer 17 installed in the first combustion zone S2 (or near the first combustion zone S2) is below the second temperature corresponding to the first combustion zone S2. Furthermore, the control device 500 may, for example, control the amount of combustion air supplied from the air supply pipe 15 in the second combustion zone S3 to increase if the temperature measured by the thermometer 17 installed in the second combustion zone S3 (or near the second combustion zone S3) is below the second temperature corresponding to the second combustion zone S3. [Explanation of symbols]

[0149] 1: Sludge 1a: Residue 2: Filling section 10: Combustion chamber 11: Combustion chamber body 11a: Bottom surface 11b: Wall surface 11c: Wall surface 12: Discharge part 12a: Discharge port 13: Weir 14a: Weir 14b: Weir section 15: Air supply pipe 15a: Air supply pipe 15b: Air supply pipe 15c: Air supply pipe 15d: Air supply pipe 15e: Air supply pipe 15f: Air supply pipe 15g: Air supply tube 15h: Air supply tube 16: Thermometer 16a: Thermometer 16b: Thermometer 16c: Thermometer 16d: Thermometer 16e: Thermometer 16f: Thermometer 16g: Thermometer 17: Thermometer 17a: Thermometer 17b: Thermometer 17c: Thermometer 17d:Thermometer 18:Weir 19: Guide member 20: Rear combustion chamber 21: Rear combustion chamber body 30: Supply unit 31: Supply pipe 31a: Supply port 32: Input pipe 32a: Inlet port 33: Pusher 40: Discharge section 41: Discharge pipe 41a: Discharge port 50: Control device 100: Incineration system 501: CPU 502: Memory 503: Communication device 504: Storage medium 505: Bus 510: Program 530: Information storage area S: Processing zone Sa: Slope S1: Dry zone S2: First combustion zone S3: Second combustion zone

Claims

1. An incineration system equipped with an incinerator, The aforementioned incinerator, A combustion chamber in which the material to be burned is combusted, The combustion chamber includes an inlet for introducing the material to be burned, It has an outlet for discharging residue generated by the combustion of the material being burned from the combustion chamber, The surface in the combustion chamber where at least one of drying or combustion of the material to be burned takes place is an inclined surface such that the height on the input side is higher than the height on the discharge side. A weir is provided on the aforementioned slope. An incineration system is provided in which a communication port is provided between the weir and the slope, connecting the input port side and the discharge port side on the slope.

2. The incineration system according to claim 1, wherein the angle of inclination of the slope with respect to the horizontal direction is greater than the angle of repose of the residue and less than the angle of repose of the material to be burned.

3. The weir section includes a first weir section that separates a drying zone for drying the material to be burned from a first combustion zone for burning the material that has been dried in the drying zone, and a second weir section that separates the first combustion zone from a second combustion zone for burning the material that has been burned in the first combustion zone. Between the first weir section and the slope, a first communication opening is provided as the communication opening, which connects the drying zone and the first combustion zone. The incineration system according to claim 1, wherein a second communication port is provided between the second weir and the slope, connecting the first combustion zone and the second combustion zone.

4. The weir section has a third weir section that separates the space within the second combustion zone from the space on the outlet side. The incineration system according to claim 3, wherein a third communication port is provided between the third weir and the slope, connecting the second combustion zone and the space on the discharge port side.

5. Furthermore, the incineration system according to claim 1, comprising a control device that controls the discharge of the residue from the discharge port according to the accumulation of the residue on the input port side of the weir.

6. An incineration method in an incineration system comprising: an incinerator having a combustion chamber for burning material to be burned inside; an input port for introducing the material to be burned into the combustion chamber; and an output port for discharging residue generated by the combustion of the material to be burned from the combustion chamber, wherein the surface in the combustion chamber where at least one of drying and combustion of the material to be burned takes place is a slope that is inclined such that the height on the input port side is higher than the height on the output port side; a weir is provided on the slope; and a communication port is provided between the weir and the slope, connecting the input port side and the output port side on the slope, An incineration method that controls the discharge of the residue from the discharge port according to the accumulation of the residue in the combustion chamber.

7. A combustion chamber in which the material to be burned is combusted, The combustion chamber includes an inlet for introducing the material to be burned, It has an outlet for discharging residue generated by the combustion of the material being burned from the combustion chamber, The surface in the combustion chamber where at least one of drying or combustion of the material to be burned takes place is an inclined surface such that the height on the input side is higher than the height on the discharge side. A weir is provided on the aforementioned slope. An incinerator is provided between the weir and the slope, with a communication port connecting the inlet side and the outlet side on the slope.

Images