Waste charging device and waste charging method

Abstract

To provide a waste charging device effective in further preventing an uneven accumulation height of waste.SOLUTION: A waste charging device 1 comprises a lower guide 4 disposed on an upper section 22 of a treatment chamber 2 to adjust the falling position of waste being sent into the treatment chamber 2, and an upper guide 5 disposed above the lower guide 4 to adjust the falling position of waste being sent to the lower guide 4. The lower guide 4 comprises a lower guide plate comprising a lower guide surface supporting waste being sent into the treatment chamber 2, and a lower drive unit that changes the angle of the rotation of the lower guide plate around a lower horizontal axis, to change the tilt angle of the lower guide surface. The upper guide 5 comprises an upper guide plate comprising an upper guide surface for adjusting the falling position of waste being sent to the lower guide 4, and an upper drive unit that changes the angle of the rotation of the upper guide plate around the upper horizontal axis disposed on a position twisted relative to the lower horizontal axis, to change the tilt angle of the upper guide surface.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a waste loading device and a waste loading method. [Background technology]

[0002] Patent Document 1 discloses a method for charging waste from above into a waste melting furnace having a cylindrical side wall arranged around a vertical axis. In this method, the waste is alternately dropped in a first direction and a second direction offset from the center of the side wall. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6425614 Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure provides a waste loading device and a waste loading method that are effective in further suppressing deviations in the pile height of waste. [Means for solving the problem]

[0005] The waste loading device according to the present disclosure loads waste material into a vertically extending cylindrical processing chamber from above, and includes: a lower guide unit disposed at an upper portion of the processing chamber and configured to adjust the position at which waste material falls before being sent into the processing chamber; and an upper guide unit disposed above the lower guide unit and configured to adjust the position at which waste material falls before being sent to the lower guide unit. The lower guide unit includes a lower guide plate having a lower guide surface that supports waste material sent into the processing chamber, and a lower drive unit that changes the inclination angle of the lower guide surface by changing the rotation angle of the lower guide plate about a horizontal lower axis. The upper guide unit includes an upper guide plate having an upper guide surface that adjusts the position at which waste material falls before being sent to the lower guide unit, and an upper drive unit that changes the inclination angle of the upper guide surface by changing the rotation angle of the upper guide plate about a horizontal upper axis that is twisted relative to the lower axis.

[0006] In the waste loading device according to the present disclosure, the upper guide unit and the lower guide unit adjust the fall position of the waste in two stages, and the waste is loaded into the processing chamber. For example, the upper drive unit of the upper guide unit changes the inclination angle of the upper guide surface to adjust the fall position of the waste sent to the lower guide unit. The lower drive unit of the lower guide unit changes the inclination angle of the lower guide surface to adjust the fall position of the waste sent into the processing chamber. The combination of the adjustment of the fall position by the upper guide unit and the lower guide unit can further suppress unevenness in the pile height of the waste. The combination of adjustment of the fall position is also effective in following uneven volume reduction rates (falling rates) of the waste within the processing chamber.

[0007] The waste loading method disclosed herein is a waste loading method for loading waste from above into a vertically extending cylindrical processing chamber, and includes rotating an upper guide plate, which adjusts the fall position of the waste using an upper guide surface, around a horizontal upper axis to cause the waste to fall onto a lower guide surface of a lower guide plate provided at the top of the processing chamber, and rotating the lower guide plate, which supports the waste using the lower guide surface, around a lower axis that is twisted relative to the upper axis to cause the waste to fall into the processing chamber.

[0008] In the waste loading method according to the present disclosure, the fall position of the waste is adjusted in two stages by the upper guide plate and the lower guide plate, and the waste is loaded into the processing chamber. For example, the fall position of the waste sent onto the lower guide surface is adjusted by changing the inclination angle of the upper guide surface. The fall position of the waste sent into the processing chamber is adjusted by changing the inclination angle of the lower guide surface. By combining the adjustment of the fall position by the upper guide plate and the lower guide plate, it is possible to further suppress unevenness in the pile height of the waste. The combination of adjustments of the fall position is also effective in following uneven volume reduction rates (falling rates) of the waste within the processing chamber. [Effects of the Invention]

[0009] According to the present disclosure, it is possible to provide a waste loading device and a waste loading method that are effective in further suppressing bias in the pile height of waste. [Brief explanation of the drawings]

[0010] [Figure 1] 1A is a cross-sectional view showing a schematic example of the configuration of a waste loading device. FIG. 1A is a cross-sectional view showing a schematic example of the entire waste loading device. FIG. 1B is a cross-sectional view showing a cross section along line AA in FIG. 1A. [Figure 2] 2A and 2B are enlarged schematic diagrams illustrating the configuration of a lower guide section, in which (a) of Fig. 2 is a schematic diagram illustrating the movable range of a first lower guide section, and (b) of Fig. 2 is a schematic diagram illustrating the movable range of a second lower guide section. [Figure 3] 3A and 3B are enlarged schematic diagrams illustrating the configuration of an upper guide section, Fig. 3A is a schematic diagram illustrating the movable range of a first upper guide section, and Fig. 3B is a schematic diagram illustrating the movable range of a second upper guide section. [Figure 4] FIG. 10 is a schematic diagram illustrating the range of positions where waste material falls. [Figure 5] FIG. 2 is a schematic diagram illustrating temperature measurement points and level measurement points. [Figure 6] FIG. 2 is a block diagram illustrating a hardware configuration of a control device. [Figure 7]FIG. 2 is a block diagram illustrating a functional configuration of a control device. [Figure 8] FIG. 10 is a schematic diagram for explaining estimation of the level of an unmeasurable area. [Figure 9] FIG. 10 is a diagram illustrating a table for determining upper and lower target angles for each area. [Figure 10] 4 is a flowchart illustrating the operation of the waste loading device. [Figure 11] 10 is a flowchart illustrating a process for selecting a supply target area. [Figure 12] 10 is a flowchart illustrating a waste loading process. [Figure 13] FIG. 10 is a schematic diagram illustrating threshold values ​​related to levels. [Figure 14] FIG. 10 is a schematic diagram showing another example of level measurement points. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, the embodiments will be described in detail with reference to the drawings. In the description, the same elements or elements having the same functions are designated by the same reference numerals, and redundant description will be omitted.

[0012] [Waste charging device] The waste charging device 1 shown in FIG. 1 is a device that charges waste from above into a vertically extending cylindrical treatment chamber 2. The treatment chamber 2 dries, pyrolyzes, burns, and melts the waste. Examples of equipment to which the waste charging device 1 is applied include waste melting furnaces. When the waste is charged into the treatment chamber 2, the waste piles up depending on the location where the waste is charged, the treatment speed, etc. As the pyrolysis and volume reduction of the waste is promoted within the treatment chamber 2, the height of the pile of waste changes.

[0013] Fig. 1(a) is a cross-sectional view showing a schematic example of the entire waste charging device. Fig. 1(b) is a cross-sectional view showing a cross section along line AA in Fig. 1(a). As shown in Fig. 1, the waste charging device 1 includes a processing chamber 2, a lower guide section 4, a waste receiving hopper 3, an upper guide section 5, an upper seal valve 6, a secondary material charging device 7, a gas delivery section 8, a conveyor 9, a load cell 10, a waste chute 11, multiple temperature sensors 12, multiple level sensors 13, an exhaust gas section 14, a control device 100, a console 200, and a memory section 300.

[0014] The processing chamber 2 is formed, for example, in a cylindrical shape and extends along a vertical central axis CL1. The central axis of the processing chamber 2 coincides with the central axis CL1. The processing chamber 2 has a peripheral wall 21 that surrounds the central axis CL1. The peripheral wall 21 has a reduced diameter at an upper portion 22 of the processing chamber 2. An opening 23 is formed at the upper end of the processing chamber 2 for introducing waste material.

[0015] The waste receiving hopper 3 is formed, for example, in the shape of a rectangular tube and extends along a vertical axis. The waste receiving hopper 3 guides waste to the processing chamber 2. The waste receiving hopper 3 has an upper end 31 that opens upward, a lower end 32 that opens downward, and a peripheral wall 33 that extends from the upper end 31 to the lower end 32. The lower end 32 communicates with the opening 23 at the upper part 22 of the processing chamber 2. The inner peripheral surface 2a of the processing chamber 2 is located outside the inner peripheral surface 3a of the waste receiving hopper 3 at the lower end 32. The peripheral wall 33 is provided with an auxiliary material charging device 7 and a gas delivery unit 8. The auxiliary material charging device 7 is provided with an exhaust gas unit 14. The central axis of the waste receiving hopper 3 may or may not coincide with the central axis CL1.

[0016] The lower guide section 4 is provided in the upper section 22 within the processing chamber 2, below the waste receiving hopper 3 (near the lower end 32). The lower guide section 4 functions as a lower seal valve that opens and closes the lower end 32. When the lower end 32 is closed, the lower guide section 4 supports the waste within the waste receiving hopper 3. When the lower guide section 4 opens the lower end 32, the waste within the waste receiving hopper 3 falls into the processing chamber 2. The lower guide section 4 adjusts (guides) the position at which the waste falls from the lower guide section 4 into the processing chamber 2 in a horizontal first direction (the Y direction in the figure).

[0017] The upper guide section 5 is provided in the waste chute 11 above the lower guide section 4 and the upper end 31 of the waste receiving hopper 3. The upper guide section 5 adjusts (guides) the falling position of the waste sent to the lower guide section 4 in a horizontal second direction (the X direction in the figure).

[0018] The upper seal valve 6 is located between the upper guide section 5 and the waste receiving hopper 3 to open and close the upper end 31 of the waste receiving hopper 3. The upper seal valve 6 includes an opening / closing plate 61 and a pressure ring 62. The opening / closing plate 61 is plate-shaped and can slide horizontally. The opening / closing plate 61 opens and closes the upper end 31 by sliding. The pressure ring 62 presses the opening / closing plate 61 downward to seal the upper end 31. Before waste is received into the waste receiving hopper 3, the upper seal valve 6 opens the upper end 31 of the waste receiving hopper 3. After waste is received into the waste receiving hopper 3, the upper seal valve 6 closes the upper end 31 of the waste receiving hopper 3. The opening / closing plate 61 is driven by a power source such as an electric motor or hydraulic cylinder via a transmission mechanism such as a chain or belt. The pressure ring 62 is driven by a power source such as a hydraulic cylinder or air cylinder.

[0019] The secondary material charging device 7 charges secondary materials into the treatment chamber 2 via the waste receiving hopper 3. The secondary materials include, for example, fuel such as coke and basicity adjusters such as lime. The secondary material charging device 7 includes a secondary material chute 71, a secondary material hopper 72, and a secondary material seal valve 73. The secondary material chute 71 is tubular and protrudes obliquely upward from the peripheral wall 33 of the waste receiving hopper 3, and is connected to the interior of the waste receiving hopper 3. The secondary material hopper 72 is provided at the upper end of the secondary material chute 71 and opens upward. The secondary material seal valve 73 opens and closes the space between the secondary material chute 71 and the secondary material hopper 72. The secondary material charging device 7 stores secondary materials in the secondary material hopper 72 by closing the secondary material seal valve 73. The secondary material charging device 7 charges the secondary materials into the waste receiving hopper 3 via the secondary material chute 71 by opening the secondary material seal valve 73. The secondary material charging device 7 may be configured to charge the secondary materials directly into the treatment chamber 2 without passing through the waste receiving hopper 3.

[0020] The gas sending unit 8 sends an inert gas into the waste receiving hopper 3 to replace the gas in the waste receiving hopper 3 with the inert gas. Examples of inert gas include, but are not limited to, nitrogen (N2). The gas sending unit 8 is provided, for example, on the peripheral wall 33 of the waste receiving hopper 3. For example, after the waste in the waste receiving hopper 3 is loaded into the processing chamber 2, the gas sending unit 8 replaces the gas (e.g., carbon monoxide) in the waste receiving hopper 3 with the inert gas. In this case, the gas sending unit 8 sends the inert gas into the waste receiving hopper 3 while the upper end 31 of the waste receiving hopper 3 is closed by the upper seal valve 6 and the lower end 32 of the waste receiving hopper 3 is slightly opened by the lower guide unit 4. Because the lower end 32 is not closed, the gas (e.g., carbon monoxide) that flows into the waste receiving hopper 3 from the processing chamber 2 when the waste is loaded is returned to the processing chamber 2. For example, after waste is received into the waste receiving hopper 3, the gas sending unit 8 replaces the gas (e.g., oxygen, etc.) inside the waste receiving hopper 3 with an inert gas. In this case, the gas sending unit 8 sends the inert gas into the waste receiving hopper 3 while the upper end 31 of the waste receiving hopper 3 is closed by the upper seal valve 6 and the lower end 32 of the waste receiving hopper 3 is closed by the lower guide unit 4. The gas (e.g., oxygen, etc.) inside the waste receiving hopper 3 is exhausted via the exhaust gas unit 14.

[0021] The conveyor 9 intermittently sends waste toward the upper guide section 5. The conveyor 9 has a support surface 9a that can store (support) waste. Waste is thrown onto the conveyor 9 from above the support surface 9a by, for example, a crane. The conveyor 9 also functions as a waste hopper by storing the waste on the support surface 9a. The conveyor 9 transports the waste on the support surface 9a and drops it toward the upper guide section 5.

[0022] The load cell 10 detects the load of the waste stored by the conveyor 9. The detection result of the load cell 10 changes as the waste is sent out by the conveyor 9 toward the upper guide section 5. A plurality of load cells 10 (for example, a total of four) are arranged, for example, on the upper guide section 5 side of the conveyor 9 and on the opposite side from the upper guide section 5. The load cell 10 transmits the detection result of the waste weight to the control device 100.

[0023] The waste chute 11 guides the waste delivered by the conveyor 9 to the upper guide section 5. The waste chute 11 is formed, for example, in the shape of a square tube and extends along a vertical axis. The lower part of the waste chute 11 contains the upper guide section 5. The upper part of the waste chute 11 receives the waste transported by the conveyor 9.

[0024] The temperature sensors 12 detect temperatures at a plurality of temperature measurement points within the processing chamber 2. The temperature sensors 12 transmit the detection results to the control device 100. The temperature sensors 12 are arranged in an upper portion 22 of the processing chamber 2 so as to be aligned in the circumferential direction of the peripheral wall 21.

[0025] The level sensor 13 detects the level at a plurality of level measurement points, which indicates the height of the piled-up waste inside the processing chamber 2. The level sensor 13 transmits the detection results to the control device 100. The level sensor 13 is disposed in the upper part 22 of the processing chamber 2.

[0026] The gas exhaust unit 14 exhausts gas from within the waste receiving hopper 3. For example, when the gas (e.g., oxygen) within the waste receiving hopper 3 is replaced with an inert gas by the gas delivery unit 8, the gas exhaust unit 14 exhausts the gas from within the waste receiving hopper 3 to the outside.

[0027] The control device 100 is a device that controls the operation of the waste charging device 1. The control device 100 acquires various information necessary for the operation of the waste charging device 1 from a plurality of temperature sensors 12, level sensors 13, load cells 10, console 200, etc. The control device 100 is configured to be able to control the operation of the lower guide unit 4, upper guide unit 5, upper seal valve 6, auxiliary material charging device 7, gas delivery unit 8, and conveyor 9.

[0028] The console 200 is a device that allows an operator to input various operations. For example, the console 200 receives input of a target load that is a target amount of waste to be excavated per one time and sent to the upper guide section 5. The console 200 may be a device separate from the control device 100, or may be a component of the control device 100.

[0029] The memory unit 300 is a non-transitory storage medium or storage device that stores data related to the operation of the waste loading device 1. The memory unit 300 may be a device separate from the control device 100, or may be a component of the control device 100.

[0030] Waste is loaded into the processing chamber 2 by passing through the conveyor 9, waste chute 11, upper guide 5, waste receiving hopper 3, and lower guide 4 in that order. For example, the waste is dropped onto the support surface 9a of the conveyor 9 by a crane or the like. The waste is transported intermittently by the conveyor 9 and sent to the upper guide 5 via the waste chute 11. The falling position of the waste is adjusted by the upper guide 5, and the waste is supported by the lower guide 4 within the waste receiving hopper 3. Within the waste receiving hopper 3, the waste may be supported by the lower guide 4 in an uneven state (see FIG. 1(b)).

[0031] When the lower guide section 4 opens its lower end 32, the waste falls from the waste receiving hopper 3 into the processing chamber 2. The position where the waste falls is adjusted by the lower guide section 4. Furthermore, any imbalance in the waste inside the waste receiving hopper 3 affects the direction in which the waste falls from the lower guide section 4 into the processing chamber 2. Therefore, the position where the waste falls is also adjusted by the upper guide section 5, which caused the imbalance in the waste inside the waste receiving hopper 3.

[0032] 2 is an enlarged schematic diagram illustrating the configuration of the lower guide unit 4. The lower guide unit 4 includes a lower guide plate having a lower guide surface that supports waste material being sent into the processing chamber 2, and a lower drive unit that changes the angle of inclination of the lower guide surface by changing the angle of rotation of the lower guide plate about a horizontal lower axis. For example, the lower guide unit 4 includes a first lower guide unit 41 and a second lower guide unit 42.

[0033] 2(a), a description will be given of the configuration of first lower guide section 41. First lower guide section 41 includes first lower rotation shaft 411, first lower guide plate 412, and first lower drive section 413.

[0034] The first lower-stage rotation shaft 411 extends horizontally with the first lower-stage axis DL1 as its central axis. Hereinafter, the horizontal direction in which the first lower-stage rotation shaft 411 extends will be referred to as the X-axis direction, the upward vertical direction will be referred to as the Z-axis direction, and the direction perpendicular to the X-axis and Z-axis directions will be referred to as the Y-axis direction. The first lower-stage rotation shaft 411 is disposed near the lower end 32 of the waste receiving hopper 3, outside the inner circumferential surface 3a of the waste receiving hopper 3 (for example, in the positive direction of the Y-axis). The first lower-stage rotation shaft 411 rotates around the first lower-stage axis DL1.

[0035] The first lower guide plate 412 has a first lower guide surface 41a that supports waste to be sent into the processing chamber 2. The first lower guide plate 412 rotates together with the first lower rotating shaft 411 to open and close the lower end 32 of the waste receiving hopper 3. The first lower guide plate 412 is integrated with the first lower rotating shaft 411. For example, the first lower guide plate 412 is formed in a plate shape that protrudes from the outer peripheral surface of the first lower rotating shaft 411.

[0036] The first lower-stage drive unit 413 changes the angle of rotation of the first lower-stage guide plate 412 around the horizontal first lower-stage axis DL1 to change the inclination angle of the first lower-stage guide surface 41a. The inclination angle is the angle of inclination of the first lower-stage guide surface 41a relative to the horizontal plane. The first lower-stage drive unit 413 changes the inclination angle β of the first lower-stage guide surface 41a within a predetermined range. When the first lower-stage drive unit 413 sets the inclination angle β of the first lower-stage guide surface 41a to a predetermined angle, the first lower-stage guide surface 41a faces the entire circumference of the lower end 32, and the lower end 32 is closed. When the first lower-stage drive unit 413 rotates the first lower-stage guide plate 412 so as to move the first lower-stage guide surface 41a away from the lower end 32, the lower end 32 is opened. The first lower-stage drive unit 413 has a power source for rotating the first lower-stage rotating shaft 411 and a sensor for detecting the rotation angle of the first lower-stage rotating shaft 411. The power source of the first lower stage driving unit 413 is, for example, an electric motor or a hydraulic cylinder. The sensor of the first lower stage driving unit 413 is, for example, a rotary encoder or a potentiometer.

[0037] The first lower guide unit 41 adjusts the fall position of the waste in the negative direction of the Y-axis. For example, when the first lower drive unit 413 sets the inclination angle β of the first lower guide surface 41a within a predetermined range, the waste slides down the first lower guide surface 41a and moves horizontally (in the negative direction of the Y-axis). Therefore, by setting the inclination angle β of the first lower guide surface 41a within a predetermined range, the first lower guide unit 41 shifts the fall position of the waste toward the negative direction of the Y-axis.

[0038] 2(b), the configuration of the second lower guide section 42 will be described. The second lower guide section 42 includes a second lower rotation shaft 421, a second lower guide plate 422, a second lower drive section 423, and a lock section 424.

[0039] The second lower-stage rotation shaft 421 extends horizontally with a second lower-stage axis DL2, which is parallel to the first lower-stage rotation shaft 411, as its central axis. The second lower-stage rotation shaft 421 is disposed near the lower end 32 of the waste receiving hopper 3, outside the inner circumferential surface 3a of the waste receiving hopper 3 (for example, in the negative direction of the Y axis). The second lower-stage rotation shaft 421 is also disposed at a position on the Z axis that is at the same height as the position on the Z axis at which the first lower-stage rotation shaft 411 is disposed. The second lower-stage rotation shaft 421 rotates around the second lower-stage axis DL2.

[0040] The second lower guide plate 422 has a second lower guide surface 42a that adjusts the fall position of the waste. The second lower guide plate 422 rotates together with the second lower rotating shaft 421. The second lower guide plate 422 is integrated with the second lower rotating shaft 421. For example, the second lower guide plate 422 is formed in a plate shape that protrudes from the outer peripheral surface of the second lower rotating shaft 421.

[0041] The second lower stage drive unit 423 changes the inclination angle of the second lower stage guide surface 42a by changing the rotation angle of the second lower stage guide plate 422 about a second lower stage axis DL2 parallel to the first lower stage axis DL1. The inclination angle is the inclination angle of the second lower stage guide surface 42a with respect to the horizontal plane. The second lower stage drive unit 423 changes the inclination angle γ of the second lower stage guide surface 42a within a predetermined range. The second lower stage drive unit 423 has a power source for rotating the second lower stage rotation shaft 421 and a sensor for detecting the rotation angle of the second lower stage rotation shaft 421. The power source of the second lower stage drive unit 423 is, for example, an electric motor or a hydraulic cylinder. The sensor of the second lower stage drive unit 423 is, for example, a rotary encoder or a potentiometer.

[0042] The locking portion 424 supports the first lower guide plate 412 with its lower end 32 closed. The locking portion 424 is formed to protrude from the outer peripheral surface of the second lower rotating shaft 421. The direction in which the locking portion 424 protrudes from the outer peripheral surface of the second lower rotating shaft 421 is different from the direction in which the second lower guide plate 422 protrudes from the outer peripheral surface of the second lower rotating shaft 421. When the locking portion 424 supports the first lower guide plate 412 with its lower end 32 closed, the inclination angle γ of the second lower guide surface 42a is set to a predetermined angle. As the second lower guide plate 422 rotates in a direction that increases the inclination angle γ, the locking portion 424 moves away from the first lower guide plate 412 and retracts to a position where it does not interfere with the rotation of the first lower guide plate 412.

[0043] The second lower guide unit 42 adjusts the fall position of the waste in the positive direction of the Y axis. For example, when the second lower drive unit 423 sets the inclination angle γ of the second lower guide surface 42a within a predetermined range, the waste slides down the second lower guide surface 42a and moves horizontally (in the positive direction of the Y axis). Therefore, by setting the inclination angle γ of the second lower guide surface 42a within a predetermined range, the second lower guide unit 42 shifts the fall position of the waste toward the positive direction of the Y axis.

[0044] 3 is an enlarged schematic diagram illustrating the configuration of the upper guide unit 5. The upper guide unit 5 includes an upper guide plate having an upper guide surface for adjusting the drop position of the waste sent to the lower guide unit 4, and an upper drive unit that changes the angle of inclination of the upper guide surface by changing the angle of rotation of the upper guide plate about a horizontal upper axis that is twisted relative to the lower axis. For example, the upper guide unit 5 includes a first upper guide unit 51 and a second upper guide unit 52.

[0045] 3(a), the first upper guide section 51 will be described. The first upper guide section 51 includes a first upper rotation shaft 511, a first upper guide plate 512, and a first upper drive section 513.

[0046] The first upper-stage rotation shaft 511 extends horizontally with a horizontal first upper-stage axis UL1 as its central axis, which is skewed with respect to the first lower-stage axis DL1. For example, the first upper-stage rotation shaft 511 extends in the Y-axis direction. The first upper-stage rotation shaft 511 rotates around the first upper-stage axis UL1.

[0047] The first upper guide plate 512 has a first upper guide surface 51a for adjusting the falling position of the waste sent to the lower guide section 4. The first upper guide plate 512 rotates together with the first upper rotating shaft 511. The first upper guide plate 512 is integrated with the first upper rotating shaft 511. For example, the first upper guide plate 512 is formed in a plate shape so as to protrude from the outer peripheral surface of the first upper rotating shaft 511.

[0048] The first upper stage drive unit 513 changes the inclination angle of the first upper stage guide surface 51a by changing the rotation angle of the first upper stage guide plate 512 around the horizontal first upper stage axis UL1, which is skewed with respect to the first lower stage axis DL1. The inclination angle is the inclination angle of the first upper stage guide surface 51a with respect to the horizontal plane. The first upper stage drive unit 513 changes the inclination angle α1 of the first upper stage guide surface 51a within a predetermined range. The first upper stage drive unit 513 has a power source for rotating the first upper stage rotation shaft 511. The power source of the first upper stage drive unit 513 is, for example, an electric motor or a hydraulic cylinder. In one example, the first upper stage drive unit 513 rotates the first upper stage rotation shaft 511 in accordance with the movement of the hydraulic cylinder to the open end and closed end. The first upper stage drive unit 513 may have a sensor for detecting the rotation angle of the first upper stage rotation shaft 511. The sensor of the first upper stage driving unit 513 is, for example, a rotary encoder or a potentiometer.

[0049] The first upper guide unit 51 adjusts the falling position of the waste in the positive direction of the X-axis. For example, when the first upper drive unit 513 sets the inclination angle α1 of the first upper guide surface 51a to a predetermined angle, the falling waste comes into contact with the first upper guide surface 51a and moves in the horizontal direction (the positive direction of the X-axis).

[0050] 3(b), the configuration of the second upper guide section 52 will be described. The second upper guide section 52 includes a second upper rotation shaft 521, a second upper guide plate 522, and a second upper drive section 523.

[0051] The second upper-stage rotation shaft 521 extends horizontally with a second upper-stage axis UL2, which is parallel to the first upper-stage rotation shaft 511, as its central axis. The first upper-stage rotation shaft 511 is disposed above the waste receiving hopper 3. The second upper-stage rotation shaft 521 rotates around the second upper-stage axis UL2.

[0052] The second upper guide plate 522 has a second upper guide surface 52a that adjusts the direction in which the waste falls. The second upper guide plate 522 rotates together with the second upper rotating shaft 521. The second upper guide plate 522 is integrated with the second upper rotating shaft 521. For example, the second upper guide plate 522 is formed in a plate shape that protrudes from the outer peripheral surface of the second upper rotating shaft 521.

[0053] The second upper stage drive unit 523 changes the rotation angle of the second upper stage guide plate 522 around the second upper stage axis UL2, which is parallel to the first upper stage axis UL1, thereby changing the inclination angle of the second upper stage guide surface 52a. The inclination angle is the inclination angle of the second upper stage guide surface 52a with respect to the horizontal plane. The second upper stage drive unit 523 changes the inclination angle α2 of the second upper stage guide surface 52a within a predetermined range. The second upper stage drive unit 523 has a power source for rotating the second upper stage rotating shaft 521. The power source of the second upper stage drive unit 523 is, for example, an electric motor or a hydraulic cylinder. In one example, the second upper stage drive unit 523 rotates the second upper stage rotating shaft 521 in accordance with the movement of the hydraulic cylinder to the open end and the closed end. The second upper stage drive unit 523 may have a sensor for detecting the rotation angle of the second upper stage rotating shaft 521. The sensor of the second upper stage drive unit 523 is, for example, a rotary encoder or a potentiometer.

[0054] The second upper guide unit 52 adjusts the falling position of the waste in the negative direction of the X-axis. For example, when the second upper drive unit 523 sets the inclination angle α2 of the second upper guide surface 52a to a predetermined angle, the falling waste comes into contact with the second upper guide surface 52a and moves horizontally (in the negative direction of the X-axis).

[0055] Figure 4 is a schematic diagram illustrating the range of the waste drop position. The lower guide unit 4 and the upper guide unit 5 adjust the drop position of the waste in two stages. In Figure 4, the diagonally shaded area D1 illustrates the range in which the lower guide unit 4 can adjust the drop position independently. The diagonally shaded area D2 illustrates the range in which the lower guide unit 4 and the upper guide unit 5 can adjust the drop position in cooperation with the diagonally shaded area D1.

[0056] The peripheral wall 21 of the processing chamber 2 has a front wall 21F, a rear wall 21B, a left wall 21L, and a right wall 21R. The front wall 21F is the wall on the positive side of the Y axis. The rear wall 21B is the wall on the negative side of the Y axis. The left wall 21L is the wall on the negative side of the X axis. The right wall 21R is the wall on the positive side of the X axis.

[0057] The upper guide unit 5 is switched between an open and closed state by the upper drive unit. The open state refers to a state in which the upper guide surface of the upper guide unit 5 is in a position where it does not actively adjust the fall position of waste into the waste receiving hopper 3 by contacting the waste falling from the conveyor 9. The closed state refers to a state in which the upper guide surface of the upper guide unit 5 is in a position where it contacts the waste falling from the conveyor 9 and adjusts the fall position of the waste into the waste receiving hopper 3 to a predetermined position. For example, the upper guide surface of the upper guide unit 5 is set by the upper drive unit to an inclination angle corresponding to the open state or an inclination angle corresponding to the closed state. In another example, the upper guide unit 5 adjusts the fall position of waste onto the lower guide surface to a predetermined position in the first direction (X-axis direction) by inclining the upper guide surface to a predetermined inclination angle by the upper drive unit. For example, the upper guide unit 5 adjusts the fall position of the waste in the X-axis direction by adjusting the relative strength between the action of the first upper guide plate 512 to shift the fall position of the waste toward the positive direction of the X-axis and the action of the second upper guide plate 522 to shift the fall position of the waste toward the negative direction of the X-axis. In other words, the upper guide unit 5 adjusts the fall position of the waste onto the first lower guide surface 41a to a predetermined position in the first direction by the inclination of the first upper guide surface 51a set to a predetermined inclination angle by the first upper drive unit 513 and the inclination of the second upper guide surface 52a set to a predetermined inclination angle by the second upper drive unit 523. The waste is supported by the lower guide unit 4 within the waste receiving hopper 3, for example, near the left wall 21L, between the left wall 21L and the right wall 21R, or near the right wall 21R, which are located in the first direction.

[0058] The lower guide unit 4 adjusts the fall position of the waste into the processing chamber 2 to a predetermined position in a second direction (Y-axis direction) that intersects with the first direction by inclining the lower guide surface, which is set to a predetermined inclination angle by the lower drive unit. For example, the lower guide unit 4 adjusts the fall position of the waste in the Y-axis direction by adjusting the relative strength between the action of the first lower guide plate 412 to shift the fall position of the waste toward the negative direction of the Y-axis and the action of the second lower guide plate 422 to shift the fall position of the waste toward the positive direction of the Y-axis. In other words, the lower guide unit 4 adjusts the fall position of the waste into the processing chamber 2 to a predetermined position in the second direction by inclining the first lower guide surface 41a, which is set to a predetermined inclination angle by the first lower drive unit 413, and the inclination of the second lower guide surface 42a, which is set to a predetermined inclination angle by the second lower drive unit 423. The waste is loaded into the processing chamber 2, for example, at the front wall 21F located in the second direction, between the front wall 21F and the rear wall 21B, or near the rear wall 21B.

[0059] The upper guide 5 adjusts the position at which the waste falls within the range of the inner diameter of the waste hopper 3. Because the lower guide 4 is located below the waste hopper 3, waste can fall beyond the inner diameter of the waste hopper 3 toward the peripheral wall 21 of the processing chamber 2. For example, waste sent into the waste hopper 3 via the upper guide 5 is supported by the first lower guide surface 41a of the first lower guide plate 412. As the waste supported by the first lower guide surface 41a slides down the first lower guide surface 41a, it also leaks in the positive and negative X-axis directions, which intersect the sliding direction (the negative Y-axis direction). The relationship between the amount of leakage in the positive X-axis direction and the amount of leakage in the negative X-axis direction varies depending on the distribution of waste in the waste hopper 3. For example, if the waste is supported in the waste receiving hopper 3 so that it is biased toward the positive direction of the X axis, the amount of waste leaking in the positive direction of the X axis will be greater than the amount of waste leaking in the negative direction of the X axis. Therefore, the influence of the bias in the waste receiving hopper 3 will extend beyond the inner diameter of the waste receiving hopper 3 and reach the peripheral wall 21 inside the processing chamber 2.

[0060] 5 is a schematic diagram illustrating temperature and level measurement points. The processing chamber 2 has multiple areas. For example, the processing chamber 2 has eight areas A1, A2, A3, A4, A5, A6, A7, and A8 arranged circumferentially, and one area A9 located in the center.

[0061] The multiple temperature sensors 12 are arranged at equal intervals in the circumferential direction of the peripheral wall 21. The multiple temperature measurement points TP are arranged along the peripheral wall 21 of the treatment chamber. The multiple temperature sensors 12 transmit detection results in each of the multiple areas in the treatment chamber 2 to the control device 100. In one example, the waste loading device 1 is equipped with 14 temperature sensors 12. The multiple temperature sensors 12 transmit detection results in eight areas A1 to A8 arranged in the circumferential direction to the control device 100.

[0062] The level sensor 13 detects coordinate information (x, y, z) of each of the multiple level measurement points. For example, the level sensor 13 detects coordinate information by defining the center C of the processing chamber 2 as (x, y) = (0, 0) and the height of the stock line as z = 0. The stock line (see FIG. 13) is, for example, a reference height for the waste level. The level sensor 13 detects the levels of multiple level measurement points LP for each of the multiple areas in the processing chamber 2. For example, the multiple level measurement points LP include multiple surrounding measurement points CP that are arranged around the center C of the processing chamber 2 between the center C of the processing chamber 2 and the multiple temperature measurement points TP. The multiple level measurement points LP include three annular surrounding measurement points CP with different diameters. The level sensor 13 transmits the detection results for each of the multiple areas in the processing chamber 2 to the control device 100.

[0063] The control device 100 aggregates the multiple level measurement points LP for each area. The control device 100 may aggregate, for example, the average value, median value, minimum value, maximum value, or the value of a representative point among the multiple level measurement points LP within an area as the level measurement point of the area.

[0064] 6 is a block diagram illustrating an example of the hardware configuration of the control device 100. The control device 100 has, as its hardware configuration, for example, a circuit 120. The circuit 120 has a processor 121, a memory 122, a storage 123, an input / output port 124, and a driver 125.

[0065] The processor 121 executes programs in cooperation with at least one of the memory 122 and the storage 123, and configures the above-mentioned functional modules by performing input and output to the input / output port 124. The input / output port 124 inputs and outputs data to and from the plurality of temperature sensors 12, the level sensor 13, and the console 200. The driver 125 is a circuit for driving the upper guide unit 5 and the lower guide unit 4. The driver 125 may also drive the upper seal valve 6 and the auxiliary material seal valve 73. The input / output port 124 also inputs and outputs data to and from the driver 125, and outputs drive commands for the upper guide unit 5 and the lower guide unit 4 to the driver 125.

[0066] The console 200 has a monitor 211 and an input unit 212. For example, the monitor 211 displays information for an operator. For example, the monitor 211 functions as a display unit for information relating to the detection results of the plurality of temperature sensors 12 and information relating to the detection results of the level sensor 13. The monitor 211 is configured, for example, by a liquid crystal display or the like. The input unit 212 accepts input by the operator. The input unit 212 is configured, for example, by an operation switch, a keyboard, a mouse, a touch panel, or the like.

[0067] The hardware configuration of the control device 100 is not necessarily limited to one in which functional modules are configured by executing a program. For example, the control device 100 may be one in which these functions are configured by dedicated logic circuits or an ASIC (Application Specific Integrated Circuit) that integrates such circuits.

[0068] 7 is a block diagram illustrating the functional configuration of the control device 100. The control device 100 includes, as functional modules, an acquisition unit 101, a charging determination unit 102, an area selection unit 103, an angle calculation unit 104, a cutting amount determination unit 105, an output unit 106, and a control unit 107.

[0069] The acquisition unit 101 acquires various information necessary for controlling the waste loading device 1. For example, the acquisition unit 101 acquires the detection results of the multiple temperature sensors 12, the detection results of the level sensor 13, the detection results of the load cell 10, information stored in the memory unit 300, information input to the console 200, etc. The acquisition unit 101 calculates the temperature for each area based on the detection results of the multiple temperature sensors 12. For example, the acquisition unit 101 calculates, for each of the multiple areas, a statistical value (e.g., an average value) of temperatures detected by one or more temperature sensors 12 located within the area as the area temperature. The acquisition unit 101 calculates, for each of the multiple areas, a statistical value (e.g., an average value) of levels at one or more level measurement points located within the area as the area level.

[0070] When waste is unevenly accumulated in the processing chamber 2, or when the distance between the level sensor and the waste is short, an unmeasurable area may occur where normal level measurement is not possible. In such cases, the acquisition unit 101 may estimate the level of the unmeasurable area. FIG. 8 is a schematic diagram for explaining the estimation of the level of the unmeasurable area. The acquisition unit 101 identifies the unmeasurable area where the level cannot be measured based on the positions of multiple level measurement points LP. The acquisition unit 101 estimates the level of the unmeasurable area based on the levels of the level measurement points LP surrounding the unmeasurable area.

[0071] For example, the acquisition unit 101 identifies an unmeasurable area based on the positions of multiple level measurement points that were acquired and the positions of multiple level measurement points that were not acquired. Here, the explanation is given assuming that there are no level measurement points in area A8 (number of measurement points = 0). The acquisition unit 101 estimates the level of area A8 based on the levels of multiple level measurement points in partial area A71 of area A7, partial area A91 of area A9, and partial area A11 of area A1, which are located around area A8. In one example, the acquisition unit 101 estimates the level of area A8 based on the average, median, minimum, maximum, or value of the levels of multiple level measurement points LP in partial areas A71, A91, and A11, or the value of a representative point among the multiple level measurement points LP.

[0072] Returning to FIG. 7, the loading determination unit 102 determines whether or not to load waste into the processing chamber 2 based on the levels of multiple areas within the processing chamber 2.

[0073] The area selection unit 103 selects a target area for dropping waste from among the multiple areas based on at least one of the detection results of the multiple temperature sensors 12 and the detection results of the level sensor 13 in each of the multiple areas within the processing chamber 2. In one example, the area selection unit 103 selects the area with the highest temperature as the target area for dropping waste from among the multiple areas. In another example, the area selection unit 103 selects the area with the lowest level as the target area for dropping waste from among the multiple areas.

[0074] In another example, the area selection unit 103 determines whether or not there is a first area among the multiple areas whose temperature exceeds a predetermined temperature threshold. If there is a first area, the area selection unit 103 selects the first area with the highest temperature as the supply target area. If there is no first area, the area selection unit 103 selects the second area with the lowest level among the multiple areas as the supply target area.

[0075] In another example, the area selection unit 103 sequentially selects a plurality of areas based on a predetermined cycle order. For example, the area selection unit 103 sequentially selects areas A1 to A8 as supply target areas.

[0076] The angle calculation unit 104 calculates an upper target angle for the upper guide surface and a lower target angle for the lower guide surface so that the waste falls into the supply target area. For example, the angle calculation unit 104 calculates an upper target angle for the first lower guide surface 41a and the second lower guide surface 42a, and a lower target angle for the first upper guide surface 51a and the second upper guide surface 52a. The angle calculation unit 104 may determine an inclination angle corresponding to the open state or an inclination angle corresponding to the closed state as the upper target angle for the first lower guide surface 41a and the second lower guide surface 42a.

[0077] The angle calculation unit 104 may select or set the upper stage target angle and the lower stage target angle corresponding to the supply target area by referring to a table that defines the upper stage target angle and the lower stage target angle for each of the multiple areas in the processing chamber 2. The table is generated in advance based on an actual machine test, a simulation, or the like, and is stored in the storage unit 300.

[0078] The table stored in the storage unit 300 will be described with reference to Fig. 9. Fig. 9 is a diagram illustrating a table that defines the upper target angle and lower target angle for each area. The table defines the inclination angle α1 of the first upper guide surface 51a, the inclination angle α2 of the second upper guide surface 52a, the inclination angle β of the first lower guide surface 41a, and the inclination angle γ of the second lower guide surface 42a, which correspond to the supply target area. The supply target areas "1" to "9" in the table correspond to the areas A1 to A9, respectively.

[0079] As shown in FIG. 9, angles G1 to G2 are set as the upper target angles for each area, and angles G3 to G7 are set as the lower target angles for each area. For example, the inclination angle α1 of the first upper guide surface 51a is set to an angle G1 or G2 depending on the area. The inclination angle α2 of the second upper guide surface 52a is set to an angle G1 or G2 depending on the area. The inclination angle β of the first lower guide surface 41a is set to an angle G3 or G4 depending on the area. The inclination angle γ of the second lower guide surface 42a is set to an angle G5, G6, or G7 depending on the area.

[0080] Angle G1 is equal to or greater than the angle of repose of the waste and is an angle that allows adjustment of the position at which the waste falls into waste receiving hopper 3. For example, angle G1 is set in the range of 40° to 50°. In one example, angle G1 is 40°.

[0081] Angle G2 is an angle at which the falling position of the waste is not actively adjusted and at which the waste does not come into contact with surrounding objects (e.g., the inner peripheral surface 3a of the waste receiving hopper 3) at the location where the first upper guide section 51 is installed. Here, "not actively adjusted" includes cases where the falling waste does not come into contact with the first upper guide surface 51a, and cases where the falling position of the waste does not change even if the waste comes into contact. For example, angle G2 is set in the range of 75° to 80°. In one example, angle G2 is 76°.

[0082] Angle G3 is equal to or greater than the angle of repose of the waste and is an angle that allows adjustment of the position at which the waste falls into waste receiving hopper 3. For example, angle G3 is set in the range of 40° to 50°. In one example, angle G3 is 50°.

[0083] Angle G4 is an angle at which the falling position of the waste is not actively adjusted and at which the first upper guide section 51 does not come into contact with surrounding objects (e.g., the inner peripheral surface 2a of the processing chamber 2) at the installation location of the first upper guide section 51. Here, "not actively adjusted" includes suppressing the influence of the waste sliding down from the first lower guide surface 41a. For example, angle G4 is set in the range of 75° to 80°. In one example, angle G4 is 80°.

[0084] Angle G5 is equal to or greater than the angle of repose of the waste and is an angle that allows adjustment of the position at which the waste falls into the processing chamber 2. More specifically, angle G5 is an angle that allows adjustment of the position at which the waste falls, near the front wall 21F (see FIG. 4) or the center of the processing chamber 2. For example, angle G5 is set in the range of 40° to 50°. In one example, angle G5 is 47°.

[0085] Angle G6 is an angle that allows adjustment of the position at which the waste falls into the processing chamber 2, and is an angle that prevents the waste from coming into contact with surrounding objects (e.g., the first lower guide section 41 facing the second lower guide section 42). More specifically, angle G6 is an angle that allows adjustment of the position at which the waste falls, near the center in the front-to-rear direction within the processing chamber 2. For example, angle G6 is set in the range of 60° to 75°. In one example, angle G6 is 75°.

[0086] Angle G7 is an angle at which the falling position of the waste is not actively adjusted and at which the second lower guide section 42 does not come into contact with surrounding objects (e.g., the inner peripheral surface 2a of the processing chamber 2) at the installation location of the second lower guide section 42. Here, "not actively adjusted" includes suppressing the influence of the waste sliding down from the second lower guide surface 42a. For example, angle G7 is set in the range of 75° to 180°. In one example, angle G7 is 84.5°.

[0087] When there are no objects around the installation location of the upper guide unit 5 and the lower guide unit 4, the angles G2 and G4 may be set with an upper limit of 180°. In this way, the range of angles may be changed depending on the installation location.

[0088] In one example, when the supply target area is "1," the table defines an inclination angle α1 of the first upper guide surface 51a = angle G2 (e.g., 76°), an inclination angle α2 of the second upper guide surface 52a = angle G2 (e.g., 76°), an inclination angle β of the first lower guide surface 41a = angle G3 (e.g., 50°), and an inclination angle γ of the second lower guide surface 42a = angle G7 (e.g., 84.5°). In this case, the waste falls from the conveyor 9 into the waste receiving hopper 3 and is supported by the lower guide unit 4. The lower guide unit 4 also adjusts the falling position of the waste so that it is deposited near the rear wall 21B (see FIG. 4) of the processing chamber 2.

[0089] In another example, when the target supply area is "4," the table defines the inclination angle α1 of the first upper guide surface 51a as angle G1 (e.g., 40°), the inclination angle α2 of the second upper guide surface 52a as angle G2 (e.g., 76°), the inclination angle β of the first lower guide surface 41a as angle G4 (e.g., 80°), and the inclination angle γ of the second lower guide surface 42a as angle G5 (e.g., 47°). In this case, the upper guide unit 5 adjusts the fall position of the waste, and the waste is supported by the lower guide unit 4 near the right wall 21R (see FIG. 4) within the waste receiving hopper 3. The lower guide unit 4 also adjusts the fall position of the waste, and the waste is loaded near the front wall 21F (see FIG. 4) of the processing chamber 2.

[0090] 7, the cut-out amount determination unit 105 determines the amount of waste to be cut out per time. For example, the cut-out amount determination unit 105 determines the target load, which is the target amount of waste to be cut out per time and is input to the console 200, as the cut-out amount.

[0091] The output unit 106 outputs information relating to the state inside the reactor to the console 200. The information relating to the state inside the reactor includes, for example, temperatures and levels of a plurality of areas. The console 200 functions as a display unit for the information relating to the state inside the reactor.

[0092] The control unit 107 includes a conveyor control unit 107a, an upper-stage control unit 107b, a seal valve control unit 107c, an auxiliary material control unit 107d, a gas control unit 107e, and a lower-stage control unit 107f. The conveyor control unit 107a controls the operation of the conveyor 9. The upper-stage control unit 107b controls the operation of the upper-stage guide unit 5. The seal valve control unit 107c controls the operation of the upper seal valve 6. The auxiliary material control unit 107d controls the operation of the auxiliary material charging device 7. The gas control unit 107e controls the operation of the gas delivery unit 8. The lower-stage control unit 107f controls the operation of the lower-stage guide unit 4.

[0093] [Waste loading device operation] 10 to 13, an example of a waste charging method using the waste charging apparatus 1 will be described. The waste charging method using the waste charging apparatus 1 is executed by the control device 100 controlling each element of the waste charging apparatus 1. FIG. 10 is a flowchart illustrating the operation of the waste charging apparatus 1.

[0094] In step S1, the acquisition unit 101 of the control device 100 acquires the levels of a plurality of level measurement points regarding the level of waste in the processing chamber 2 from the level sensor 13. For example, the acquisition unit 101 acquires the levels of a plurality of level measurement points LP, including a plurality of surrounding measurement points CP, which are arranged to surround the center C of the processing chamber 2 between the center C of the processing chamber 2 and a plurality of temperature measurement points TP (see FIG. 5).

[0095] In step S2, the charging determination unit 102 of the control device 100 determines the determination level based on the levels in one or more predetermined areas among the multiple areas. For example, the charging determination unit 102 determines the average, median, maximum, or minimum value of the levels in two or more areas among the multiple areas as the determination level. In one example, the charging determination unit 102 determines the average value of the levels in all areas (areas A1 to A9) as the determination level. In another example, the charging determination unit 102 determines the level in one predetermined area (e.g., area A9 located in the center) as the determination level. Then, the charging determination unit 102 determines whether the determination level is below the charging determination threshold. The charging determination threshold (see FIG. 13) is a height that serves as a criterion for determining whether or not waste can be charged into the processing chamber 2. For example, the charging determination threshold is lower than the above-mentioned stock line. In another example, the charging determination threshold may be the same height as the stock line or higher than the stock line. If the determination level is below the charging determination threshold (YES in step S2), the process proceeds to step S3. If the determination level is equal to or greater than the charging determination threshold (NO in step S2), the process returns to step S1.

[0096] In step S3, the charging determination unit 102 determines the second determination level based on the levels in one or more predetermined areas among the multiple areas. For example, the charging determination unit 102 determines the average, median, maximum, or minimum value of the levels in two or more areas among the multiple areas as the second determination level. In one example, the charging determination unit 102 determines the average value of the levels in all areas (areas A1 to A9) as the second determination level. In another example, the charging determination unit 102 determines the level in one predetermined area (e.g., area A9 located in the center) as the second determination level. Alternatively, the charging determination unit 102 determines the average value of the levels in the four areas among areas A1 to A9 in descending order of level as the second determination level. Then, the charging determination unit 102 determines whether the second determination level is below an upper charging determination threshold. The upper charging determination threshold (see FIG. 13) is a height that serves as a criterion for determining whether or not to charge waste into the processing chamber 2. For example, the upper charging determination threshold is higher than the charging determination threshold described above and higher than the stock line. In another example, the upper charging determination threshold may be the same height as the stock line or lower than the stock line. If the second determination level is lower than the upper charging determination threshold (YES in step S3), the process proceeds to step S4. If the second determination level is equal to or higher than the upper charging determination threshold (NO in step S3), the process returns to step S1. That is, based on the second determination level exceeding the upper charging determination threshold, the charging determination unit 102 cancels the control for charging waste into the processing chamber 2.

[0097] In step S4, the acquisition unit 101 acquires temperatures at a plurality of temperature measurement points within the processing chamber 2 from the plurality of temperature sensors 12. For example, the plurality of temperature sensors 12 detect temperatures at a plurality of temperature measurement points in eight areas A1 to A8 arranged in the circumferential direction (see FIG. 5).

[0098] In step S5, the area selection unit 103 of the control device 100 executes a supply target area selection process. The supply target area selection process will be described in detail later.

[0099] In step S6, the waste charging device 1 executes a waste charging process. The waste charging process will be described in detail later. The flow shown in Fig. 10 is repeated, for example, at predetermined time intervals.

[0100] [Selection of supply area] An example of the process of step S5 shown in Fig. 10 will be described with reference to Fig. 11. Fig. 11 is a flowchart illustrating the process of selecting a supply target area.

[0101] In step S51, the area selection unit 103 determines whether there is an area where the temperature exceeds a predetermined temperature threshold. The temperature threshold has a first threshold and a second threshold that is higher than the first threshold. For example, the area selection unit 103 determines whether there is an area where the temperature exceeds the first threshold. If there is an area where the temperature exceeds the first threshold (YES in step S51), the process proceeds to step S52. If there is no area where the temperature exceeds the first threshold (NO in step S51), the process proceeds to step S53.

[0102] In step S52, the area selection unit 103 determines whether there is an area where the temperature exceeds the second threshold. If there is an area where the temperature exceeds the second threshold (YES in step S52), the process proceeds to step S54. If there is no area where the temperature exceeds the second threshold (NO in step S52), the process proceeds to step S55.

[0103] In step S53, the area selection unit 103 determines whether the current time is an interrupt timing. The interrupt timing refers to the timing for selecting a supply target area by prioritizing the level over a predetermined cycle order for multiple areas. The interrupt timing is determined, for example, by the number of times waste is loaded or a predetermined time interval. In one example, the interrupt timing may be determined such that after waste is loaded twice into an area in the cycle order, a supply target area is selected once by prioritizing the level. If the current time is an interrupt timing (YES in step S53), the process proceeds to step S58. If the current time is not an interrupt timing (NO in step S53), the process proceeds to step S59.

[0104] In step S54, the area selection unit 103 determines whether the levels of all areas whose temperatures exceed the second threshold exceed the selection cancellation threshold. The selection cancellation threshold (see FIG. 13) is the height at which it is determined that no new waste needs to be added to the supply target area. The selection cancellation threshold is higher than the stock line described above. If the level is below the selection cancellation threshold (NO in step S54), the process proceeds to step S541. If the levels of all areas are equal to or higher than the selection cancellation threshold (YES in step S54), the process proceeds to step S53. That is, the area selection unit 103 cancels the selection of the supply target area based on the temperature and the second threshold, based on the selection cancellation threshold. If there is an area whose temperature exceeds the second threshold and the levels of all areas whose temperatures exceed the second threshold exceed the predetermined selection cancellation threshold, the area selection unit 103 cancels the selection of the area whose temperature exceeds the second threshold as the supply target area.

[0105] In step S55, the area selection unit 103 determines whether the levels of all areas, among the areas whose temperatures exceed the first threshold, exceed the selection cancellation threshold. If the levels are below the selection cancellation threshold (NO in step S55), the process proceeds to step S551. If the levels of all areas are equal to or greater than the selection cancellation threshold (YES in step S55), the process proceeds to step S53. That is, the area selection unit 103 cancels the selection of the supply target area based on the temperature and the first threshold, based on the selection cancellation threshold. If there is an area whose temperature exceeds the first threshold, and if the levels of all areas, among the areas whose temperatures exceed the first threshold, exceed a predetermined selection cancellation threshold, the area selection unit 103 cancels the selection of the area whose temperature exceeds the first threshold as the supply target area.

[0106] In step S541, the area selection unit 103 excludes areas with a selection cancellation threshold or higher from candidates for supply target areas.

[0107] In step S56, the area selection unit 103 selects the area with the highest temperature from among at least one area whose temperature exceeds the second threshold as the supply target area. If there are multiple areas whose temperature exceeds the second threshold, the area selection unit 103 selects the areas as the supply target area in descending order of temperature.

[0108] In step S551, the area selection unit 103 excludes areas with a selection cancellation threshold or higher from candidates for supply target areas.

[0109] In step S57, the area selection unit 103 selects the area with the lowest level as the supply target area from among at least one area whose temperature exceeds the first threshold. If there are multiple areas whose temperature exceeds the first threshold, the area selection unit 103 selects the areas with the lowest level as the supply target area.

[0110] In step S58, the area selection unit 103 selects the area with the lowest level from among the multiple areas as the supply target area.

[0111] In step S59, the area selection unit 103 selects an area based on the cycle order as a supply target area. For example, the area selection unit 103 selects the next area in the cycle order in which areas A1 to A8 are arranged in order as a supply target area.

[0112] [Waste loading and processing] An example of the processing of step S6 shown in Fig. 10 will be described with reference to Fig. 12. Fig. 12 is a flowchart illustrating the waste loading processing.

[0113] In step S61, the control device 100 controls the operation of the lower guide unit 4 so as to close the lower end 32 of the waste hopper 3. For example, the lower control unit 107f of the control device 100 sets the inclination angle of the first lower guide surface 41a to a predetermined angle and drives the first lower drive unit 413. As a result, the lower end 32 of the waste hopper 3 is closed by the first lower guide surface 41a. Furthermore, the lower control unit 107f sets the inclination angle of the second lower guide surface 42a to a predetermined angle and drives the second lower drive unit 423. As a result, the first lower guide plate 412 of the first lower guide unit 41 is supported by the lock unit 424 of the second lower guide unit 42.

[0114] After step S61, the control device 100 may charge the secondary materials into the waste receiving hopper 3. For example, the secondary material control unit 107d of the control device 100 controls the operation of the secondary material charging device 7. The secondary material control unit 107d controls the secondary material seal valve 73 to open, thereby charging the secondary materials into the waste receiving hopper 3 through the secondary material chute 71.

[0115] In step S62, the control device 100 replaces the gas (e.g., carbon monoxide) in the waste receiving hopper 3 with the inert gas by sending the inert gas into the waste receiving hopper 3. For example, the gas control unit 107e of the control device 100 controls the operation of the gas sending unit 8 to send an inert gas such as nitrogen into the waste receiving hopper 3 while the upper end 31 of the waste receiving hopper 3 is closed by the upper seal valve 6 and the lower end 32 of the waste receiving hopper 3 is slightly opened by the lower guide unit 4. Because the lower end 32 is not closed, the gas (e.g., carbon monoxide) that flowed into the waste receiving hopper 3 from the processing chamber 2 when the waste was charged is returned to the processing chamber 2. After the gas replacement is complete, the control device 100 controls the operation of the lower guide unit 4 to close the lower end 32 of the waste receiving hopper 3.

[0116] In step S63, the control device 100 controls the operation of the upper seal valve 6 to open the upper end 31 of the waste receiving hopper 3. For example, the seal valve control unit 107c of the control device 100 opens the upper end 31 by sliding the upper seal valve 6 away from the upper end 31.

[0117] In step S64, the control device 100 drives the upper stage guide unit 5. For example, the angle calculation unit 104 of the control device 100 calculates the upper stage target angle with respect to the upper stage guide surface so as to drop the waste into the supply target area. For example, the angle calculation unit 104 refers to a table that defines the upper stage target angle and the lower stage target angle for each of the multiple areas in the processing chamber 2, and selects the upper stage target angle that corresponds to the supply target area. Then, the upper stage control unit 107b of the control device 100 drives the first upper stage drive unit 513 and the second upper stage drive unit 523 so as to correspond to the upper stage target angle with respect to the first upper stage guide surface 51a and the second upper stage guide surface 52a.

[0118] In step S65, the control device 100 determines the amount of waste to be dispensed at one time. For example, the dispense amount determination unit 105 of the control device 100 determines the target load, which is the target amount of waste to be dispensed at one time and which is input to the console 200, as the dispense amount.

[0119] In step S66, the control device 100 receives the waste into the waste receiving hopper 3. For example, the conveyor control unit 107a of the control device 100 controls the operation of the conveyor 9 so as to increase or decrease the amount of waste stored on the support surface 9a that is sent to the upper guide unit 5 per transfer. In other words, the conveyor control unit 107a changes the operation of the conveyor 9 to change the amount of waste on the conveyor 9 that is sent to the upper guide surface per transfer. As waste is transported by the conveyor 9, it falls from the support surface 9a onto the upper guide unit 5, causing the load detected by the load cell 10 to decrease. The conveyor control unit 107a controls the operation time of the conveyor 9 based on this change in load. In one example, the conveyor control unit 107a controls the operation time of the conveyor 9 so that the change in load detected by the load cell 10 reaches the target load. The waste transported by the conveyor 9 is guided to the upper guide unit 5 by the waste chute 11. The upper guide portion 5 adjusts the position at which the waste falls within the waste receiving hopper 3 .

[0120] That is, the control device 100 drops waste into the waste receiving hopper 3 via the upper guide section 5 while the lower end 32 is closed by the lower guide surface (first lower guide surface 41a). The control device 100 adjusts the inclination of the upper guide surfaces (first upper guide surface 51a and second upper guide surface 52a) to the upper target angle, and drops waste into the waste receiving hopper 3 via the upper guide section 5. The control device 100 adjusts the amount of waste sent to the upper guide surfaces.

[0121] In step S67, the waste loading device 1 stores waste on the support surface 9a of the conveyor 9 as needed. For example, the support surface 9a stores waste that has been loaded from above the support surface 9a by a crane or the like. If a sufficient amount of waste has already been stored on the support surface 9a, new waste need not be loaded. For example, the control device 100 may determine to store waste on the conveyor 9 when the load of waste on the conveyor 9 detected by the load cell 10 is equal to or less than a threshold, and may determine not to load new waste when the load of waste exceeds the threshold. The processing of step S67 may be performed in parallel with the processing of steps S68 and onward.

[0122] In step S68, the control device 100 controls the operation of the upper seal valve 6 to close the upper end 31 of the waste receiving hopper 3. For example, the seal valve control unit 107c closes the upper end 31 by sliding the upper seal valve 6 to cover the upper end 31. In other words, the control device 100 controls the upper seal valve 6 to close the upper end 31 of the waste receiving hopper 3 while the waste that has fallen into the waste receiving hopper 3 is supported by the lower guide surface (first lower guide surface 41a).

[0123] In step S69, the control device 100 replaces the gas (e.g., oxygen) in the waste receiving hopper 3 with the inert gas by sending the inert gas into the waste receiving hopper 3. For example, the gas control unit 107e of the control device 100 controls the operation of the gas sending unit 8 to send an inert gas such as nitrogen into the waste receiving hopper 3 while the upper end 31 of the waste receiving hopper 3 is closed by the upper seal valve 6 and the lower end 32 of the waste receiving hopper 3 is closed by the lower guide unit 4. The gas exhaust unit 14 exhausts the gas in the waste receiving hopper 3 to the outside when the gas sending unit 8 replaces the gas (e.g., oxygen) in the waste receiving hopper 3 with the inert gas.

[0124] In step S70, the control device 100 drives the lower guide unit 4. For example, the angle calculation unit 104 calculates a lower target angle relative to the lower guide surface so as to drop the waste into the target supply area. For example, the angle calculation unit 104 references a table that defines the upper target angle and the lower target angle for each of the multiple areas in the processing chamber 2, and selects the lower target angle corresponding to the target supply area. Then, the lower control unit 107f of the control device 100 drives the first lower drive unit 413 and the second lower drive unit 423 so as to correspond to the lower target angles relative to the first lower guide surface 41a and the second lower guide surface 42a. The waste supported by the first lower guide surface 41a is loaded into the processing chamber 2.

[0125] That is, the control device 100 opens the lower end of the waste receiving hopper 3 using the lower guide unit 4 while the waste that has fallen into the waste receiving hopper 3 is supported by the first lower guide surface 41a. After the gas inside the waste receiving hopper 3 is replaced with the inert gas sent by the gas sending unit 8, the control device 100 further controls the lower guide unit 4 to open the lower end 32 of the waste receiving hopper 3. The control device 100 adjusts the inclination of the lower guide surfaces (first lower guide surface 41a and second lower guide surface 42a) to the lower target angle, and causes the waste to fall into the processing chamber 2 using the lower guide unit 4.

[0126] [effect] As described above, the waste loading device 1 according to the present disclosure is a waste loading device 1 for loading waste from above into a vertically extending cylindrical processing chamber 2, and includes a lower guide unit 4 provided in the upper portion 22 of the processing chamber 2 and adjusting the drop position of the waste sent into the processing chamber 2, and an upper guide unit 5 provided above the lower guide unit 4 and adjusting the drop position of the waste sent to the lower guide unit 4. The lower guide unit 4 includes a lower guide plate having a lower guide surface that supports the waste sent into the processing chamber 2, and a lower drive unit that changes the inclination angle of the lower guide surface by changing the rotation angle of the lower guide plate about a horizontal lower axis. The upper guide unit 5 includes an upper guide plate having an upper guide surface for adjusting the drop position of the waste sent to the lower guide unit 4, and an upper drive unit that changes the inclination angle of the upper guide surface by changing the rotation angle of the upper guide plate about a horizontal upper axis that is twisted relative to the lower axis.

[0127] In the waste loading device 1 according to the present disclosure, the upper guide unit 5 and the lower guide unit 4 adjust the fall position of the waste in two stages, and the waste is loaded into the processing chamber 2. For example, the upper drive unit of the upper guide unit 5 changes the inclination angle of the upper guide surface, thereby adjusting the fall position of the waste sent to the lower guide unit 4. The lower drive unit of the lower guide unit 4 changes the inclination angle of the lower guide surface, thereby adjusting the fall position of the waste sent into the processing chamber 2. The combination of the adjustment of the fall position by the upper guide unit 5 and the lower guide unit 4 can further suppress unevenness in the pile height of the waste. The combination of adjustments of the fall position is also effective in following uneven volume reduction rates (descending rates) of the waste within the processing chamber 2.

[0128] The waste charging device 1 may further include a waste receiving hopper 3 having a lower end 32 that opens downward at the upper portion 22 of the processing chamber 2. The lower guide unit 4 may be provided below the waste receiving hopper 3 so that the lower end 32 is opened and closed by a lower guide surface. The upper guide unit 5 may drop the waste into the waste receiving hopper 3. In this case, the position of the waste can be adjusted within the waste receiving hopper 3 before the waste is dropped into the processing chamber 2. This stabilizes the position at which the waste falls into the processing chamber 2.

[0129] The inner peripheral surface 2a of the processing chamber 2 may be located outside the inner peripheral surface 3a of the waste receiving hopper 3 at the lower end 32. If the upper guide section 5 is configured to be higher than the lower guide section 4, the range of bias formed by the upper guide section 5 can be further widened by the lower guide section 4. When applied to a configuration in which the inner peripheral surface 2a of the processing chamber 2 is wider, a two-stage configuration is even more effective.

[0130] The waste charging device 1 may further include a control device 100 that controls the upper guide unit 5 and the lower guide unit 4. The control device 100 may be configured to drop waste into the waste receiving hopper 3 via the upper guide unit 5 while the lower end 32 is closed by the lower guide surface, and to open the lower end 32 of the waste receiving hopper 3 by the lower guide unit 4 while the waste that has dropped into the waste receiving hopper 3 is supported by the lower guide surface. Supporting the waste in the waste receiving hopper 3 before it is sent to the processing chamber 2 stabilizes the regulating action of the upper guide unit 5.

[0131] The waste receiving hopper 3 may further have an upper end 31 that opens upward. An upper seal valve 6 may be provided between the upper guide section 5 and the waste receiving hopper 3 to open and close the upper end 31 of the waste receiving hopper 3. When the upper end 31 is closed by the upper seal valve 6, gas within the waste receiving hopper 3 can be prevented from being discharged from the upper end 31 of the waste receiving hopper 3, even when the lower end 32 is open.

[0132] The waste receiving hopper 3 may further include a gas sending unit 8 that sends an inert gas into the waste receiving hopper 3. The control device 100 may further control the upper seal valve 6 to close the upper end 31 of the waste receiving hopper 3 while the waste that has fallen into the waste receiving hopper 3 is supported by the lower guide surface, and may control the gas sending unit 8 to send an inert gas into the waste receiving hopper 3. The control device 100 may further control the lower guide unit 4 to open the lower end 32 of the waste receiving hopper 3 after the gas in the waste receiving hopper 3 has been replaced with the inert gas sent by the gas sending unit 8. Before the waste is sent into the processing chamber 2, the gas in the waste receiving hopper 3 is replaced with an inert gas such as nitrogen while the upper and lower ends 31 and 32 of the waste receiving hopper 3 are closed. This improves the operational stability of the processing chamber 2.

[0133] The waste loading device 1 may further include a level sensor that detects the levels of multiple level measurement points LP, which indicate the height of the waste pile in the processing chamber 2. The control device 100 may further select a target supply area in the processing chamber 2 based on the levels of the multiple level measurement points LP, and calculate an upper target angle for the upper guide surface and a lower target angle for the lower guide surface so that the waste falls into the target supply area. The control device 100 may adjust the inclination of the upper guide surface to the upper target angle to drop the waste into the waste receiving hopper 3 via the upper guide unit 5, and adjust the inclination of the lower guide surface to the lower target angle to drop the waste into the processing chamber 2 via the lower guide unit 4. By calculating the upper target angle and the lower target angle for the target supply area for dropping the waste, the drop position of the waste can be more appropriately adjusted. This further reduces bias in the waste pile height.

[0134] The control device 100 may select the upper and lower target angles corresponding to the supply target area by referring to a table that defines the upper and lower target angles for each of the multiple areas in the processing chamber 2. By referring to a table that defines the upper and lower target angles in advance for each supply target area, the calculation load (and cost) of the control device 100 can be reduced.

[0135] The upper guide unit 5 may adjust the position at which the waste falls onto the lower guide surface to a predetermined position in the first direction by inclining the upper guide surface, which is set to a predetermined angle by the upper drive unit. The lower guide unit 4 may adjust the position at which the waste falls into the processing chamber 2 to a predetermined position in a second direction intersecting the first direction by inclining the lower guide surface, which is set to a predetermined angle by the lower drive unit. In this case, the position at which the waste sent into the processing chamber 2 falls can be adjusted more flexibly.

[0136] The upper guide unit 5 may further include a second upper guide plate 522 having a second upper guide surface 52a that adjusts the fall position of the waste, and a second upper drive unit 523 that changes the inclination angle of the second upper guide surface 52a by changing the rotation angle of the second upper guide plate 522 about a second upper axis UL2 that is parallel to the upper axis. The upper guide unit 5 may adjust the fall position of the waste onto the lower guide surface to a predetermined position in the first direction by setting the inclination of the upper guide surface to a predetermined inclination angle by the upper drive unit and setting the inclination of the second upper guide surface 52a to a predetermined inclination angle by the second upper drive unit 523. The combination of the upper guide plate (first upper guide plate 512) and the second upper guide plate 522 allows for more flexible adjustment of the fall position of the waste sent to the lower guide unit 4.

[0137] The lower guide unit 4 may further include a second lower guide plate 422 having a second lower guide surface 42a that adjusts the fall position of the waste, and a second lower drive unit 423 that changes the inclination angle of the second lower guide surface 42a by changing the rotation angle of the second lower guide plate 422 about a second lower axis DL2 that is parallel to the lower axis. The lower guide unit 4 may adjust the fall position of the waste into the processing chamber 2 to a predetermined position in the second direction by setting the inclination of the lower guide surface to a predetermined inclination angle by the lower drive unit and setting the inclination of the second lower guide surface 42a to a predetermined inclination angle by the second lower drive unit 423. The combination of the lower guide plate (first lower guide plate 412) and the second lower guide plate 422 allows for more flexible adjustment of the fall position of the waste sent into the processing chamber 2.

[0138] The waste loading device 1 may further include a conveyor 9 having a support surface 9a on which waste can be stored and intermittently sending the waste toward the upper guide section 5. The control device 100 may control the operation of the conveyor 9 so as to increase or decrease the amount of waste stored on the support surface 9a that is sent to the upper guide section 5 per transfer. By intermittently adjusting the amount of waste to be loaded, the amount of waste in the treatment chamber 2 can be stabilized. As a result, the operational stability within the treatment chamber 2 can be improved.

[0139] The waste loading device 1 may further include a load cell 10 that detects the load of waste stored by the conveyor 9. The control device 100 may obtain a target load of waste to be sent to the upper guide section 5 and control the operation time of the conveyor 9 so that the load detected by the load cell 10 reaches the target load. This improves the accuracy of adjusting the amount of waste to be loaded. As a result, the amount of waste in the processing chamber 2 can be further stabilized.

[0140] The waste loading method of the present disclosure is a waste loading method for loading waste from above into a vertically extending cylindrical processing chamber 2, and includes rotating an upper guide plate, which adjusts the fall position of the waste using an upper guide surface, around a horizontal upper axis to cause the waste to fall onto the lower guide surface of a lower guide plate provided at the upper part 22 of the processing chamber 2, and rotating the lower guide plate, which supports the waste using the lower guide surface, around a lower axis that is twisted relative to the upper axis to cause the waste to fall into the processing chamber 2.

[0141] In the waste loading method according to the present disclosure, the fall position of the waste is adjusted in two stages by the upper guide plate and the lower guide plate, and the waste is loaded into the treatment chamber 2. For example, the fall position of the waste sent onto the lower guide surface is adjusted by changing the inclination angle of the upper guide surface. The fall position of the waste sent into the treatment chamber 2 is adjusted by changing the inclination angle of the lower guide surface. By combining the adjustment of the fall position by the upper guide plate and the lower guide plate, it is possible to further suppress unevenness in the pile height of the waste. The combination of adjustments of the fall position is also effective in following uneven volume reduction rates (descending rates) of the waste within the treatment chamber 2.

[0142] The waste loading method may further include, when dropping the waste onto the lower guide surface, dropping the waste into the waste receiving hopper 3 provided above the processing chamber 2 with the lower end 32 of the waste receiving hopper 3 closed by the lower guide surface, and when dropping the waste into the processing chamber 2, opening the lower end 32 with the lower guide surface while the waste that has dropped into the waste receiving hopper 3 is supported by the lower guide surface, allowing the waste to begin dropping into the processing chamber 2. Supporting the waste in the waste receiving hopper 3 before it is sent to the processing chamber 2 stabilizes the adjusting action of the upper guide plate.

[0143] The waste loading method may further include detecting levels of a plurality of level measurement points LP indicating the height of the waste pile in the processing chamber 2, selecting a target supply area in the processing chamber 2 based on the levels of the plurality of level measurement points LP, setting an upper target angle for the upper guide surface and a lower target angle for the lower guide surface so that the waste falls into the target supply area, adjusting the inclination of the upper guide surface to the upper target angle when dropping the waste onto the lower guide surface, and dropping the waste into the waste receiving hopper 3 via the upper guide surface, and adjusting the inclination of the lower guide surface to the lower target angle when dropping the waste into the processing chamber 2. By calculating the upper target angle and the lower target angle relative to the target supply area for dropping the waste, the drop position of the waste can be more appropriately adjusted. This further reduces bias in the waste pile height.

[0144] The waste loading method may further include adjusting the amount of waste sent to the upper guide surface. By adjusting the amount of waste to be loaded, the amount of waste in the treatment chamber 2 can be stabilized. As a result, the operational stability in the treatment chamber 2 can be improved.

[0145] The waste loading method may further include storing waste on the conveyor 9, operating the conveyor 9 to intermittently send the waste on the conveyor 9 to the upper guide surface, and changing the operation of the conveyor 9 to change the amount of waste on the conveyor 9 that is sent to the upper guide surface per load. By intermittently adjusting the amount of waste to be loaded, the amount of waste in the treatment chamber 2 can be stabilized.

[0146] The waste loading method may further include obtaining a target load of waste to be sent to the upper guide surface, detecting the load of waste stored by the conveyor 9, and controlling the operation time of the conveyor 9 so that the change in the detected load reaches the target load. This improves the accuracy of adjusting the amount of waste to be loaded. As a result, the amount of waste in the treatment chamber 2 can be further stabilized.

[0147] The waste loading device 1 of the present disclosure comprises a vertically extending cylindrical processing chamber 2, a temperature sensor 12 that detects the temperature at multiple temperature measurement points TP within the processing chamber 2, and a level sensor 13 that detects the level at multiple level measurement points LP that indicate the height of the waste piled up within the processing chamber 2.

[0148] When waste is charged into a processing chamber 2, such as a melting furnace, uneven waste accumulation may occur depending on the location of the waste, the processing speed, etc. As a result, uneven temperatures (waste temperature and gas temperature) within the processing chamber 2 may occur. For example, if the thermal decomposition and volume reduction of the waste are partially accelerated, partial cavities are formed, causing uneven gas flow paths within the processing chamber 2. Because the gas within the processing chamber 2 is primarily an upward flow from below the chamber and is high in temperature, uneven gas flow paths result in uneven temperatures within the processing chamber 2. In addition, uneven waste accumulation results in uneven pyrolysis reactions within the processing chamber 2, further contributing to uneven temperatures within the processing chamber 2. Furthermore, uneven waste accumulation may result in uneven temperatures within the processing chamber 2 due to the temperature of the waste itself. In the waste charging device 1 according to the present disclosure, the temperature of multiple temperature measurement points TP is detected by the temperature sensor 12, and the level of multiple level measurement points LP is detected by the level sensor 13. If there is a deviation in the detection results of the temperature sensor 12 and the level sensor 13, it is possible to detect that there is a deviation in the waste accumulation situation. Since the waste accumulation situation can be grasped in more detail, it is effective for more detailed adjustment of the waste accumulation situation.

[0149] The multiple temperature measurement points TP may be arranged along the peripheral wall of the treatment chamber 2. The multiple level measurement points LP may include multiple surrounding measurement points CP arranged between the center C of the treatment chamber 2 and the multiple temperature measurement points TP, surrounding the center C of the treatment chamber 2. In this case, the multiple temperature measurement points TP and multiple level measurement points LP can be set according to the cylindrical treatment chamber 2. This allows for a more detailed understanding of the waste deposition situation.

[0150] The waste loading device 1 may further include a control device 100 that selects a target supply area into which the waste is to be dropped from among the multiple areas based on at least one of the detection results of the temperature sensor 12 and the level sensor 13 in each of the multiple areas in the processing chamber 2. In this case, the target supply area into which the waste is to be dropped can be automatically selected.

[0151] The control device 100 may determine a determination level based on the level in one or more predetermined areas among the multiple areas, and may further execute control to charge waste into the treatment chamber 2 based on the determination level falling below a predetermined charging determination threshold. Since waste is charged when the amount of waste in the treatment chamber 2 is decreasing, the amount of waste in the treatment chamber 2 can be maintained appropriately.

[0152] The control device 100 may determine a second determination level based on the level in one or more predetermined areas among the multiple areas, and may cancel control for loading waste into the treatment chamber 2 based on the second determination level exceeding a predetermined upper loading determination threshold that is higher than the loading determination threshold. In this case, it can be said that waste has accumulated to a high level in some areas within the treatment chamber 2, so there is no need to drop new waste into the treatment chamber 2. By canceling the loading of waste, the amount of waste in the treatment chamber 2 can be maintained at an appropriate level.

[0153] The control device 100 may select the area with the highest temperature among the multiple areas as the supply target area. An area where waste treatment is being promoted may become a high-temperature area due to the formation of a flow path for high-temperature gas. By preferentially selecting the area with the highest temperature as the supply target area, the supply target area can be more appropriately selected.

[0154] The control device 100 may select the area with the lowest level among the multiple areas as the supply target area. The level is lower in areas where waste disposal is being promoted. By preferentially selecting the area with the lowest level as the supply target area, the supply target area can be more appropriately selected.

[0155] The control device 100 may determine whether or not there is a first area among the multiple areas whose temperature exceeds a predetermined temperature threshold, and if there is a first area, select the area with the highest temperature among the first areas as the supply target area, and if there is no first area, select the second area with the lowest level among the multiple areas as the supply target area. By selecting the supply target area based on the priority order of the high temperature area (first area) and the low level area (second area), it is possible to more appropriately select the supply target area.

[0156] If a first area is present and the level in the first area exceeds a predetermined selection cancellation threshold, the control device 100 may cancel the selection of the first area as the target supply area. If the level in the high-temperature first area exceeds a predetermined selection cancellation threshold, it can be said that a high level of waste is accumulated in the first area, and therefore there is no need to drop new waste into the first area even if the waste is high in temperature. By canceling the selection of the target supply area, the amount of waste in the processing chamber 2 can be maintained at an appropriate level.

[0157] The waste loading device 1 may further include a lower guide unit 4 provided in an upper portion 22 within the treatment chamber 2 and adjusting the fall position of waste sent into the treatment chamber 2, and an upper guide unit 5 provided above the lower guide unit 4 and adjusting the fall position of waste sent into the lower guide unit 4. The lower guide unit 4 may include a lower guide plate having a lower guide surface that supports waste sent into the treatment chamber 2, and a lower drive unit that changes the inclination angle of the lower guide surface by changing the rotation angle of the lower guide plate about a horizontal lower axis. The upper guide unit 5 may include an upper guide plate having an upper guide surface for adjusting the fall position of waste sent to the lower guide unit 4, and an upper drive unit that changes the inclination angle of the upper guide surface by changing the rotation angle of the upper guide plate about a horizontal upper axis that is twisted relative to the lower axis. The control device 100 may control the upper guide unit 5 and the lower guide unit 4 based on a table that defines the upper target angle relative to the upper guide surface and the lower target angle relative to the lower guide surface for each of the multiple areas, and the supply target area. In this case, the drop position of the waste is adjusted to correspond to the supply target area. By dropping the waste into the supply target area, it is possible to suppress unevenness in the height of the waste within the processing chamber 2.

[0158] The level sensor 13 may detect the position and level of each of multiple level measurement points LP. The control device 100 may identify an unmeasurable area where the level cannot be measured based on the positions of the multiple level measurement points LP, and estimate the level of the unmeasurable area based on the levels of the level measurement points LP surrounding the unmeasurable area. For example, an unmeasurable area where normal level measurement cannot be performed may occur when waste is piled up unevenly, or when the distance between the level sensor 13 and the waste is short. In this case, by estimating the level of the unmeasurable area based on the levels of the surrounding level measurement points LP, the waste accumulation situation can be grasped in more detail.

[0159] [Variations] The present invention is not necessarily limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the present invention. For example, in the above embodiment, the lower guide unit 4 has been described as including the first lower guide unit 41 and the second lower guide unit 42, but it may be provided with only the first lower guide unit 41. The upper guide unit 5 has been described as including the first upper guide unit 51 and the second upper guide unit 52, but it may be provided with only one of them.

[0160] In the above embodiment, it was explained that the cycle order is to select the eight areas A1 to A8 arranged circumferentially around the processing chamber 2 in order, but after waste has been loaded into areas A1 to A8 a predetermined number of times, interrupt loading may be further performed so that waste is loaded into one centrally located area A9.

[0161] In another example, the control device 100 may obtain an area input by an operator to the console 200, select the area input by the operator as the supply target area, giving priority to the area input by the operator over the cycle order, and perform interrupt loading into the supply target area.

[0162] In the above embodiment, a waste melting furnace is exemplified as an example of equipment to which the waste charging device 1 is applied, but it may also be an incinerator, etc. Since an incinerator does not require secondary materials, the waste charging device 1 does not need to be equipped with the secondary material charging device 7.

[0163] In the above embodiment, the multiple level measurement points LP include multiple surrounding measurement points CP, but this is not limited to this. Fig. 14 is a schematic diagram showing another example of level measurement points. The multiple level measurement points LP1 may not include the surrounding measurement points CP. The multiple level measurement points LP1 may also be a collection of level measurement points randomly distributed in each of multiple areas.

[0164] When comparing the magnitude of two numbers in a computer system, either of the two criteria "greater than or equal to" and "greater than" may be used, or either of the two criteria "less than or equal to" and "under." The choice of such criteria does not change the technical significance of the process of comparing the magnitude of two numbers.

[0165] [Appendix E1] A waste charging device that charges waste from above into a vertically extending cylindrical treatment chamber, a lower guide unit provided in an upper portion of the treatment chamber and configured to adjust the position at which waste material is sent into the treatment chamber; an upper guide section that is provided above the lower guide section and that adjusts the falling position of the waste sent to the lower guide section; The lower guide portion is a lower guide plate having a lower guide surface for supporting waste material to be fed into the processing chamber; a lower stage drive unit that changes the angle of rotation of the lower stage guide plate about a horizontal lower stage axis to change the inclination angle of the lower stage guide surface, The upper guide portion is an upper guide plate having an upper guide surface for adjusting the falling position of the waste sent to the lower guide section; an upper stage drive unit that changes the angle of rotation of the upper stage guide plate about a horizontal upper stage axis that is skewed relative to the lower stage axis, thereby changing the inclination angle of the upper stage guide surface; Waste charging equipment. [Appendix E2] a waste receiving hopper having a lower end that opens downward at the top of the processing chamber; the lower guide portion is provided below the waste receiving hopper so as to open and close the lower end by the lower guide surface, The upper guide portion drops the waste into the waste receiving hopper. 10. A waste loading device as described in Appendix E1. [Appendix E3] The waste loading device according to appendix E2, wherein an inner peripheral surface of the processing chamber is positioned outside an inner peripheral surface of the waste receiving hopper at the lower end. [Appendix E4] Further, a control device for controlling the upper guide unit and the lower guide unit is provided. the control device causes the waste to fall into the waste receiving hopper via the upper guide portion while the lower end is closed by the lower guide surface; and opening the lower end of the waste receiving hopper by the lower guide portion while the waste that has fallen into the waste receiving hopper is supported by the lower guide surface. 10. A waste loading device as described in Appendix E3. [Appendix E5] The waste receiving hopper further has an upper end that opens upward, The waste receiving hopper further includes an upper seal valve disposed between the upper guide portion and the waste receiving hopper to open and close the upper end of the waste receiving hopper. 10. A waste loading device as described in Appendix E4. [Appendix E6] Further provided is a gas sending unit that sends an inert gas into the waste receiving hopper, The control device controlling the upper seal valve to close the upper end of the waste receiving hopper while the waste that has fallen into the waste receiving hopper is supported by the lower guide surface; and controlling the gas delivery unit to deliver an inert gas into the waste receiving hopper. After the gas in the waste receiving hopper is replaced with the inert gas sent by the gas sending unit, the lower guide unit is further controlled to open the lower end of the waste receiving hopper. 1. A waste loading device as described in Appendix E5. [Appendix E7] The processing chamber further includes a level sensor for detecting levels at a plurality of level measurement points, the level indicating the height of the waste piled up in the processing chamber; The control device selecting a supply target area within the processing chamber based on the levels of the plurality of level measurement points; calculating an upper target angle relative to the upper guide surface and a lower target angle relative to the lower guide surface so that the waste falls into the supply target area; The inclination of the upper guide surface is adjusted to the upper target angle, and the waste is dropped into the waste receiving hopper via the upper guide portion. the inclination of the lower guide surface is adjusted to the lower target angle, and the lower guide portion drops the waste into the processing chamber. 10. A waste loading device as described in Appendix E6. [Appendix E8] The waste loading device described in Appendix E7, wherein the control device selects the upper stage target angle and the lower stage target angle corresponding to the supply target area by referring to a table that defines the upper stage target angle and the lower stage target angle for each of multiple areas within the processing chamber. [Appendix E9] the upper guide unit adjusts the position at which the waste falls onto the lower guide surface to a predetermined position in a first direction by inclining the upper guide surface to a predetermined inclination angle set by the upper drive unit; the lower guide portion adjusts the position at which the waste material falls into the processing chamber to a predetermined position in a second direction intersecting with the first direction by inclining the lower guide surface, which is set to a predetermined inclination angle by the lower drive portion; A waste loading device according to any one of appendices E1 to E8. [Appendix E10] The upper guide portion is The waste disposal device further includes a second upper guide plate having a second upper guide surface that adjusts the falling position of the waste, and a second upper drive unit that changes the angle of inclination of the second upper guide surface by changing the rotation angle of the second upper guide plate about a second upper axis that is parallel to the upper axis, the inclination of the upper guide surface, which is set to a predetermined inclination angle by the upper drive unit, and the inclination of the second upper guide surface, which is set to a predetermined inclination angle by the second upper drive unit, adjusts the falling position of the waste onto the lower guide surface to a predetermined position in the first direction. 10. A waste loading device as described in Appendix E9. [Appendix E11] The lower guide portion is The waste disposal device further includes a second lower guide plate having a second lower guide surface that adjusts the falling position of the waste, and a second lower drive unit that changes the angle of inclination of the second lower guide surface by changing the rotation angle of the second lower guide plate about a second lower axis that is parallel to the lower axis, the inclination of the lower guide surface, which is set to a predetermined inclination angle by the lower drive unit, and the inclination of the second lower guide surface, which is set to a predetermined inclination angle by the second lower drive unit, adjusts the falling position of the waste into the processing chamber to a predetermined position in the second direction. 10. A waste loading device according to claim E9 or E10. [Appendix E12] a conveyor having a support surface capable of storing waste and intermittently sending waste toward the upper guide section; The conveyor is controlled to increase or decrease the amount of waste stored on the support surface that is sent to the upper guide section at one time. A waste loading device according to any one of appendices E4 to E8. [Appendix E13] a load cell for detecting the load of waste stored by the conveyor; the control device acquires a target load of waste to be sent to the upper guide section, and controls the operation time of the conveyor so that the change in load detected by the load cell reaches the target load. 1. A waste loading device as described in Appendix E12. [Appendix E14] A waste charging method for charging waste from above into a vertically extending cylindrical treatment chamber, comprising: an upper guide plate, which adjusts the fall position of the waste by means of an upper guide surface, is rotated about a horizontal upper axis, and the waste is dropped onto a lower guide surface of a lower guide plate provided at the top of the processing chamber; and rotating a lower guide plate, which supports the waste material by a lower guide surface, about a lower axis that is twisted relative to the upper axis, thereby dropping the waste material into the processing chamber. Waste charging method. [Appendix E15] When dropping the waste onto the lower guide surface, the waste is dropped into a waste receiving hopper provided above the processing chamber with the lower end of the waste receiving hopper closed by the lower guide surface. When dropping the waste into the processing chamber, the lower end is opened by the lower guide surface while the waste that has dropped into the waste receiving hopper is supported by the lower guide surface, and the waste begins to drop into the processing chamber. The waste loading method of Appendix E14, further comprising: [Appendix E16] Detecting levels at a plurality of level measurement points that indicate the height of the waste pile in the processing chamber; selecting a supply target area within the processing chamber based on the levels of the plurality of level measurement points; setting an upper target angle for the upper guide surface and a lower target angle for the lower guide surface so that the waste falls into the supply target area; When dropping the waste onto the lower guide surface, the inclination of the upper guide surface is adjusted to the upper target angle, and the upper guide surface drops the waste into the waste receiving hopper. When dropping the waste into the processing chamber, the inclination of the lower guide surface is adjusted to the lower target angle, and the waste is dropped into the processing chamber by the lower guide surface. The method of claim E15, further comprising: [Appendix E17] A waste loading method according to any one of appendices E14 to E16, further comprising adjusting the amount of waste sent to the upper guide surface. [Appendix E18] storing the waste material on a conveyor; operating the conveyor to intermittently feed waste material on the conveyor to the upper guide surface; The method further includes changing the amount of waste material on the conveyor that is sent to the upper guide surface per one operation by changing the operation of the conveyor. Waste loading method as described in Appendix E17. [Appendix E19] Obtaining a target load of waste to be fed to the upper guide surface; detecting a load of waste stored by the conveyor; controlling an operation time of the conveyor so that the change in the detected load reaches the target load; The waste loading method of claim E18, further comprising:

[0166] [Appendix F1] a cylindrical processing chamber extending vertically; a temperature sensor for detecting temperatures at a plurality of temperature measurement points within the processing chamber; a level sensor for detecting levels at a plurality of level measurement points, the level indicating the height of the pile of waste in the processing chamber; A waste loading device comprising: [Appendix F2] the plurality of temperature measurement points are arranged along the peripheral wall of the processing chamber, the plurality of level measurement points include a plurality of surrounding measurement points arranged to surround the center of the processing chamber between the center of the processing chamber and the plurality of temperature measurement points; 10. A waste loading device as described in Appendix F1. [Appendix F3] A waste loading device as described in appendix F2, further comprising a control device that selects a supply target area from among the multiple areas into which waste is to be dropped based on at least one of the detection results of the temperature sensor and the detection results of the level sensor in each of the multiple areas within the processing chamber. [Appendix F4] The waste loading device described in Appendix F3, wherein the control device determines a judgment level based on the level in one or more predetermined areas among the multiple areas, and further performs control to load waste into the processing chamber based on the judgment level falling below a predetermined loading judgment threshold. [Appendix F5] The waste loading device described in Appendix F4, wherein the control device determines a second judgment level based on the level in one or more predetermined areas among the multiple areas, and cancels control for loading waste into the processing chamber based on the second judgment level exceeding a predetermined upper loading judgment threshold that is higher than the loading judgment threshold. [Appendix F6] The waste loading device according to appendix F5, wherein the control device selects the area with the highest temperature among the plurality of areas as the supply target area. [Appendix F7] The waste loading device according to appendix F5, wherein the control device selects the area with the lowest level among the plurality of areas as the supply target area. [Appendix F8] The control device determining whether or not there is a first area among the plurality of areas whose temperature exceeds a predetermined temperature threshold; If the first area is present, the area with the highest temperature in the first area is selected as the supply target area; If the first area does not exist, a second area having the lowest level among the plurality of areas is selected as the supply target area. 1. Waste loading equipment as described in Appendix F5. [Appendix F9] The waste loading device described in Appendix F8, wherein the control device cancels the selection of the first area as the supply target area if the first area exists and the level in the first area exceeds a predetermined selection cancellation threshold. [Appendix F10] a lower guide unit provided in an upper portion of the treatment chamber and configured to adjust the position at which waste material is sent into the treatment chamber; an upper guide section that is provided above the lower guide section and that adjusts the position at which waste sent to the lower guide section falls; the lower guide unit includes a lower guide plate having a lower guide surface that supports the waste material to be sent into the processing chamber, and a lower drive unit that changes the angle of inclination of the lower guide surface by changing the rotation angle of the lower guide plate about a horizontal lower axis; The upper guide section has an upper guide plate having an upper guide surface for adjusting the falling position of the waste sent to the lower guide section, and an upper drive section for changing the angle of inclination of the upper guide surface by changing the rotation angle of the upper guide plate about a horizontal upper axis that is in a twisted position with respect to the lower axis, the control device controls the upper guide unit and the lower guide unit based on a table that defines an upper target angle with respect to the upper guide surface and a lower target angle with respect to the lower guide surface for each of the plurality of areas, and on the supply target area. A waste loading device according to any one of appendices F6 to F9. [Appendix F11] the level sensor detects the position and level of each of the plurality of level measurement points; the control device identifies an unmeasurable area where the level cannot be measured based on the positions of the plurality of level measurement points; estimating the level of the unmeasurable area based on the levels of level measurement points around the unmeasurable area; A waste loading device according to any one of appendices F3 to F10. [Explanation of symbols]

[0167] 1...waste charging device, 2...processing chamber, 3...waste receiving hopper, 4...lower guide section, 5...upper guide section, 6...upper seal valve, 7...secondary material charging device, 8...gas sending section, 9...conveyor, 10...load cell, 11...waste chute, 12...temperature sensor, 13...level sensor, 21...circumferential wall, 22...upper section, 23...opening, 2a...inner peripheral surface, 31...upper end, 32...lower end, 33...circumferential wall, 3a...inner peripheral surface, 41...first lower guide section, 42...second lower guide section, 51...first upper guide section, 52...second upper guide section, 9a...support surface, 100...control device, 200...console, 300...memory section, 411...first lower rotating shaft, 412...first lower guide plate, 413...first lower stage drive unit, 41a...first lower stage guide surface, 421...second lower stage rotating shaft, 422...second lower stage guide plate, 423...second lower stage drive unit, 424...lock unit, 42a...second lower stage guide surface, 511...first upper stage rotating shaft, 512...first upper stage guide plate, 513...first upper stage drive unit, 51a...first upper stage guide surface, 521...second upper stage rotating shaft, 522...second upper stage guide plate, 523...second upper stage drive unit, 52a...second upper stage guide surface, C...center, CP...surrounding measurement point, LP...level measurement point, TP...temperature measurement point, DL1...first lower stage axis, DL2...second lower stage axis, UL1...first upper stage axis, UL2...second upper stage axis, β, γ, α1, α2...tilt angles.

Claims

1. A waste charging device that charges waste from above into a vertically extending cylindrical treatment chamber, a lower guide unit provided in an upper portion of the treatment chamber and configured to adjust the position at which waste material is sent into the treatment chamber; an upper guide section that is provided above the lower guide section and that adjusts the falling position of the waste sent to the lower guide section; The lower guide portion is a lower guide plate having a lower guide surface for supporting waste material to be fed into the processing chamber; a lower stage drive unit that changes the angle of rotation of the lower stage guide plate about a horizontal lower stage axis to change the inclination angle of the lower stage guide surface, The upper guide portion is an upper guide plate having an upper guide surface for adjusting the falling position of the waste sent to the lower guide section; an upper stage drive unit that changes the angle of rotation of the upper stage guide plate about a horizontal upper stage axis that is skewed relative to the lower stage axis, thereby changing the inclination angle of the upper stage guide surface; Waste charging equipment.

2. a waste receiving hopper having a lower end that opens downward at the top of the processing chamber; the lower guide portion is provided below the waste receiving hopper so as to open and close the lower end by the lower guide surface, The upper guide portion drops the waste into the waste receiving hopper.

2. The waste loading device according to claim 1.

3. 3. The waste charging device according to claim 2, wherein the inner peripheral surface of the processing chamber is positioned outside the inner peripheral surface of the waste receiving hopper at the lower end.

4. Further, a control device for controlling the upper guide unit and the lower guide unit is provided. the control device causes the waste to fall into the waste receiving hopper via the upper guide portion while the lower end is closed by the lower guide surface; and opening the lower end of the waste receiving hopper by the lower guide portion while the waste that has fallen into the waste receiving hopper is supported by the lower guide surface.

4. The waste loading device according to claim 3.

5. The waste receiving hopper further has an upper end that opens upward, The waste receiving hopper further includes an upper seal valve disposed between the upper guide portion and the waste receiving hopper to open and close the upper end of the waste receiving hopper.

5. The waste charging device according to claim 4.

6. Further provided is a gas sending unit that sends an inert gas into the waste receiving hopper, The control device controlling the upper seal valve to close the upper end of the waste receiving hopper while the waste that has fallen into the waste receiving hopper is supported by the lower guide surface; and controlling the gas delivery unit to deliver an inert gas into the waste receiving hopper. After the gas in the waste receiving hopper is replaced with the inert gas sent by the gas sending unit, the lower guide unit is further controlled to open the lower end of the waste receiving hopper.

6. The waste loading device according to claim 5.

7. The processing chamber further includes a level sensor for detecting levels at a plurality of level measurement points, the level indicating the height of the waste piled up in the processing chamber; The control device selecting a supply target area within the processing chamber based on the levels of the plurality of level measurement points; calculating an upper target angle relative to the upper guide surface and a lower target angle relative to the lower guide surface so that the waste falls into the supply target area; The inclination of the upper guide surface is adjusted to the upper target angle, and the waste is dropped into the waste receiving hopper via the upper guide portion. the inclination of the lower guide surface is adjusted to the lower target angle, and the lower guide portion drops the waste into the processing chamber.

7. The waste loading device according to claim 6.

8. The waste loading device of claim 7, wherein the control device selects the upper stage target angle and the lower stage target angle corresponding to the supply target area by referring to a table that defines the upper stage target angle and the lower stage target angle for each of a plurality of areas within the processing chamber.

9. the upper guide unit adjusts the position at which the waste falls onto the lower guide surface to a predetermined position in a first direction by inclining the upper guide surface to a predetermined inclination angle set by the upper drive unit; the lower guide portion adjusts the position at which the waste material falls into the processing chamber to a predetermined position in a second direction intersecting with the first direction by inclining the lower guide surface, which is set to a predetermined inclination angle by the lower drive portion; A waste charging device according to any one of claims 1 to 8.

10. The upper guide portion is The waste disposal device further includes a second upper guide plate having a second upper guide surface that adjusts the falling position of the waste, and a second upper drive unit that changes the angle of inclination of the second upper guide surface by changing the rotation angle of the second upper guide plate about a second upper axis that is parallel to the upper axis, the inclination of the upper guide surface, which is set to a predetermined inclination angle by the upper drive unit, and the inclination of the second upper guide surface, which is set to a predetermined inclination angle by the second upper drive unit, adjusts the falling position of the waste onto the lower guide surface to a predetermined position in the first direction.

10. The waste loading device of claim 9.

11. The lower guide portion is The waste disposal device further includes a second lower guide plate having a second lower guide surface that adjusts the falling position of the waste, and a second lower drive unit that changes the angle of inclination of the second lower guide surface by changing the rotation angle of the second lower guide plate about a second lower axis that is parallel to the lower axis, the inclination of the lower guide surface, which is set to a predetermined inclination angle by the lower drive unit, and the inclination of the second lower guide surface, which is set to a predetermined inclination angle by the second lower drive unit, adjusts the falling position of the waste into the processing chamber to a predetermined position in the second direction.

10. The waste loading device of claim 9.

12. a conveyor having a support surface capable of storing waste and intermittently sending waste toward the upper guide section; The conveyor is controlled to increase or decrease the amount of waste stored on the support surface that is sent to the upper guide section at one time. A waste loading device according to any one of claims 4 to 8.

13. a load cell for detecting the load of waste stored by the conveyor; the control device acquires a target load of waste to be sent to the upper guide section, and controls the operation time of the conveyor so that the change in load detected by the load cell reaches the target load.

13. A waste loading device according to claim 12.

14. A waste charging method for charging waste from above into a vertically extending cylindrical treatment chamber, comprising: an upper guide plate, which adjusts the fall position of the waste by means of an upper guide surface, is rotated about a horizontal upper axis, and the waste is dropped onto a lower guide surface of a lower guide plate provided at the top of the processing chamber; and rotating a lower guide plate, which supports the waste material by a lower guide surface, about a lower axis that is twisted relative to the upper axis, thereby dropping the waste material into the processing chamber. Waste charging method.

15. When dropping the waste onto the lower guide surface, the waste is dropped into a waste receiving hopper provided above the processing chamber with the lower end of the waste receiving hopper closed by the lower guide surface. When dropping the waste into the processing chamber, the lower end is opened by the lower guide surface while the waste that has dropped into the waste receiving hopper is supported by the lower guide surface, and the waste begins to drop into the processing chamber.

15. The method of claim 14, further comprising:

16. Detecting levels at a plurality of level measurement points that indicate the height of the waste pile in the processing chamber; selecting a supply target area within the processing chamber based on the levels of the plurality of level measurement points; setting an upper target angle for the upper guide surface and a lower target angle for the lower guide surface so that the waste falls into the supply target area; When dropping the waste onto the lower guide surface, the inclination of the upper guide surface is adjusted to the upper target angle, and the upper guide surface drops the waste into the waste receiving hopper. When dropping the waste into the processing chamber, the inclination of the lower guide surface is adjusted to the lower target angle, and the waste is dropped into the processing chamber by the lower guide surface.

16. The method of claim 15, further comprising:

17. The method for loading waste according to any one of claims 14 to 16, further comprising adjusting the amount of waste sent to the upper guide surface.

18. storing the waste material on a conveyor; operating the conveyor to intermittently feed waste material on the conveyor to the upper guide surface; The method further includes changing the amount of waste material on the conveyor that is sent to the upper guide surface per one operation by changing the operation of the conveyor.

18. The method of claim 17.

19. Obtaining a target load of waste to be fed to the upper guide surface; detecting a load of waste stored by the conveyor; controlling an operation time of the conveyor so that the change in the detected load reaches the target load; 20. The method of claim 18 further comprising:

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