JP2024027895A - Waste feeding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waste feeding device effective in more finely adjusting a depositing state of a waste.

SOLUTION: A waste feeding device 1 comprises: a cylindrical treatment chamber 2 extending vertically, a temperature sensor 12 detecting temperatures at a plurality of temperature detection points for a temperature in the treatment chamber 2; and a level sensor 13 detecting levels at a plurality of level measurement points for a level showing a deposition height of a waste in the treatment chamber 2.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present disclosure relates to waste charging devices.

Patent Document 1 discloses a detection device that detects information on the surface of a charge charged into a container such as a blast furnace. This detection device scans the surface of the charge in a circular manner by transmitting and receiving detection waves such as microwaves while rotating a rotary plate facing the opening of the container.

JP 2019-100648 Publication

The present disclosure provides a waste charging device that is effective for more fine control of waste accumulation conditions.

The waste charging device according to the present disclosure includes a vertically extending cylindrical processing chamber, a temperature sensor that detects the temperature at a plurality of temperature measurement points regarding the temperature in the processing chamber, and an accumulation of waste in the processing chamber. The apparatus includes a level sensor that detects the level at a plurality of level measurement points regarding the level indicating height.

When charging waste into a processing chamber such as a melting furnace, the accumulation of waste may vary depending on the location where the waste is charged, the processing speed, and the like. As a result, the temperature (waste temperature and gas temperature) within the processing chamber may become non-uniform. For example, when the thermal decomposition and volume reduction of waste is partially promoted, partial cavities are created and the gas flow path within the processing chamber becomes non-uniform. The gas in the processing chamber is mainly an upward flow from the bottom of the chamber, and since this gas has a high temperature, non-uniformity of the gas flow path causes non-uniformity of the temperature within the processing chamber. In addition, uneven accumulation of waste causes non-uniform thermal decomposition reactions within the processing chamber, which promotes non-uniform temperature within the processing chamber. Furthermore, if the waste is unevenly deposited, the temperature within the processing chamber may become non-uniform due to the temperature of the waste itself. In the waste charging device according to the present disclosure, the temperature sensor detects the temperature at a plurality of temperature measurement points, and the level sensor detects the level at a plurality of level measurement points. If the detection results of such temperature sensor and level sensor are biased, it can be detected that the waste accumulation status is biased. Since the waste accumulation situation can be grasped in more detail, it is effective for more detailed adjustment of the waste accumulation situation.

According to the present disclosure, it is possible to provide a waste charging device that is effective for more finely controlling the waste accumulation state.

FIG. 1 is a cross-sectional view schematically illustrating the configuration of a waste charging device. FIG. 1(a) is a sectional view schematically illustrating the entire waste charging device. FIG. 1(b) is a cross-sectional view taken along line AA in FIG. 1(a). It is a schematic diagram which expands and illustrates the structure of a lower stage guide part. FIG. 2A is a schematic diagram illustrating the movable range of the first lower guide section. FIG. 2B is a schematic diagram illustrating the movable range of the second lower guide section. It is a schematic diagram which expands and illustrates the structure of an upper stage guide part. FIG. 3A is a schematic diagram illustrating the movable range of the first upper guide section. FIG. 3B is a schematic diagram illustrating the movable range of the second upper guide section. FIG. 2 is a schematic diagram illustrating a range of falling positions of waste. It is a schematic diagram which illustrates a temperature measurement point and a level measurement point. FIG. 2 is a block diagram illustrating the hardware configuration of a control device. FIG. 2 is a block diagram illustrating the functional configuration of a control device. FIG. 3 is a schematic diagram for explaining estimation of the level of an unmeasurable area. FIG. 3 is a diagram illustrating a table that defines an upper target angle and a lower target angle for each area. It is a flowchart illustrating the operation of the waste charging device. It is a flowchart which illustrates selection processing of a supply target area. 2 is a flowchart illustrating a waste charging process. FIG. 2 is a schematic diagram illustrating threshold values regarding levels. It is a schematic diagram which shows another example of a level measurement point.

Hereinafter, embodiments will be described in detail with reference to the drawings. In the description, the same elements or elements having the same function are given the same reference numerals, and redundant description will be omitted.

[Waste charging device]
A waste charging device 1 shown in FIG. 1 is a device that charges waste into a vertically extending cylindrical processing chamber 2 from above. The processing chamber 2 performs drying, thermal decomposition, combustion, and melting of waste. Examples of equipment to which the waste charging device 1 is applied include a waste melting furnace. When waste is charged into the processing chamber 2, the waste is deposited depending on the location where the waste is charged and the processing speed. When thermal decomposition and volume reduction of the waste are promoted within the processing chamber 2, the height of the waste pile changes.

FIG. 1(a) is a sectional view schematically illustrating the entire waste charging device. FIG. 1(b) is a cross-sectional view taken 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, and an auxiliary material charging device. Device 7, gas feeding section 8, conveyor 9, load cell 10, waste chute 11, multiple temperature sensors 12, multiple level sensors 13, exhaust gas section 14, control device 100, console 200 and a storage unit 300.

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 surrounding the central axis CL1. The diameter of the peripheral wall 21 is reduced at the upper portion 22 of the processing chamber 2 . An opening 23 for charging waste is formed at the upper end of the processing chamber 2.

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 in the upper part 22 of the processing chamber 2 . The inner circumferential surface 2 a of the processing chamber 2 is located outside the inner circumferential surface 3 a 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 feeding section 8. The auxiliary material charging device 7 is provided with an exhaust gas section 14 . The central axis of the waste receiving hopper 3 may or may not coincide with the central axis CL1.

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

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 (X direction in the figure).

The upper seal valve 6 is 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. The upper seal valve 6 has an opening/closing plate 61 and a pressing ring 62. The opening/closing plate 61 is formed into a plate shape and is horizontally slidable. The opening/closing plate 61 opens and closes the upper end 31 by sliding. The press ring 62 seals the upper end 31 by pressing the opening/closing plate 61 downward. Before waste is received into the waste receiving hopper 3, the top seal valve 6 opens the upper end 31 of the waste receiving hopper 3. After the waste has been received into the waste receiving hopper 3, the upper sealing valve 6 closes off the upper end 31 of the waste receiving hopper 3. The opening/closing plate 61 uses, for example, an electric motor or a hydraulic cylinder as a power source, and is driven via a transmission mechanism such as a chain or a belt. The press ring 62 is driven by using a hydraulic cylinder, an air cylinder, or the like as a power source, for example.

The auxiliary material charging device 7 charges auxiliary materials into the processing chamber 2 via the waste receiving hopper 3. The auxiliary materials include, for example, a fuel such as coke, and a basicity regulator 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 auxiliary material chute 71 is formed in a tubular shape so as to protrude diagonally upward from the peripheral wall 33 of the waste receiving hopper 3 , and communicates with the inside of the waste receiving hopper 3 . The auxiliary material hopper 72 is provided at the upper end of the auxiliary material chute 71 and opens upward. The auxiliary material seal valve 73 opens and closes between the auxiliary material chute 71 and the auxiliary material hopper 72. The auxiliary material charging device 7 stores the auxiliary material in the auxiliary material hopper 72 by closing the auxiliary material seal valve 73 . The auxiliary material charging device 7 charges the auxiliary material into the waste receiving hopper 3 through the auxiliary material chute 71 by opening the auxiliary material seal valve 73 . The auxiliary material charging device 7 may be configured to directly charge the auxiliary material into the processing chamber 2 without going through the waste receiving hopper 3.

The gas supply unit 8 replaces the gas in the waste receiving hopper 3 with the inert gas by sending an inert gas into the waste receiving hopper 3. Examples of the inert gas include, but are not limited to, nitrogen (N ₂ ). The gas feeding section 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 charged into the processing chamber 2, the gas supply unit 8 replaces the gas (for example, carbon monoxide, etc.) in the waste receiving hopper 3 with an inert gas. do. In this case, in the gas supply section 8, 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 section 4. Inert gas is sent into the waste receiving hopper 3. Since the lower end 32 is not closed, gas (for example, carbon monoxide, etc.) that flows into the waste receiving hopper 3 from the processing chamber 2 when waste is charged is returned to the processing chamber 2. For example, after receiving the waste into the waste receiving hopper 3, the gas supply unit 8 replaces the gas (eg, oxygen, etc.) in the waste receiving hopper 3 with an inert gas. In this case, the gas feeding section 8 is configured such that 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 section 4. Inert gas is sent into the material receiving hopper 3. Gas (eg, oxygen, etc.) in the waste receiving hopper 3 is exhausted via the exhaust gas section 14.

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 loaded into the conveyor 9 from above the support surface 9a using, for example, a crane. The conveyor 9 also functions as a waste hopper by storing waste through the support surface 9a. The conveyor 9 conveys the waste on the support surface 9a and causes it to fall toward the upper guide section 5.

The load cell 10 detects the load of waste stored by the conveyor 9. The detection result of the load cell 10 changes as the waste is sent out toward the upper guide section 5 by the conveyor 9. A plurality of load cells 10 (for example, four in total) 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 load to the control device 100.

The waste chute 11 guides waste sent out by the conveyor 9 to the upper guide section 5. The waste chute 11 is formed, for example, in the shape of a rectangular tube, and extends along a vertical axis. The lower part of the waste chute 11 contains the upper guide part 5. The upper part of the waste chute 11 receives the waste conveyed by the conveyor 9.

The plurality of temperature sensors 12 detect temperatures at a plurality of temperature measurement points regarding the temperature within the processing chamber 2 . The plurality of temperature sensors 12 transmit detection results to the control device 100. The plurality of temperature sensors 12 are arranged in the upper part 22 of the processing chamber 2 so as to be lined up in the circumferential direction of the peripheral wall 21 .

The level sensor 13 detects the level at a plurality of level measurement points, which indicates the height of waste piled up in the processing chamber 2 . The level sensor 13 transmits the detection result to the control device 100. The level sensor 13 is arranged in the upper part 22 of the processing chamber 2.

The exhaust gas section 14 exhausts the gas inside the waste receiving hopper 3. For example, the exhaust gas section 14 discharges the gas inside the waste receiving hopper 3 to the outside when the gas (for example, oxygen, etc.) inside the waste receiving hopper 3 is replaced with inert gas by the gas supply section 8 .

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, and the like. The control device 100 is configured to be able to control the operations of the lower guide section 4, the upper guide section 5, the upper seal valve 6, the auxiliary material charging device 7, the gas feeding section 8, and the conveyor 9.

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

The storage unit 300 is a non-temporary storage medium or storage device that stores data regarding the operation of the waste charging device 1. The storage unit 300 may be a separate device from the control device 100 or may be a component of the control device 100.

The waste is charged into the processing chamber 2 through the conveyor 9, the waste chute 11, the upper guide section 5, the waste receiving hopper 3, and the lower guide section 4 in this order. For example, the waste is placed onto the support surface 9a of the conveyor 9 by a crane or the like. The waste is intermittently conveyed by the conveyor 9 and sent to the upper guide section 5 via the waste chute 11. The falling position of the waste is adjusted by the upper guide part 5, and the waste is supported by the lower guide part 4 within the waste receiving hopper 3. Inside the waste receiving hopper 3, the waste can be supported by the lower guide part 4 in a biased state (see FIG. 1(b)).

When the lower guide part 4 opens the lower end 32, the waste falls from inside the waste receiving hopper 3 into the processing chamber 2. The falling position of the waste is adjusted by the lower guide section 4. Furthermore, the unevenness of the waste that has occurred in the waste receiving hopper 3 affects the direction in which the waste falls from the lower guide section 4 to the processing chamber 2. Therefore, the falling position of the waste is also adjusted by the upper guide section 5 that causes the waste to be uneven in the waste receiving hopper 3.

FIG. 2 is an enlarged schematic diagram illustrating the configuration of the lower guide section 4. As shown in FIG. The lower guide section 4 includes a lower guide plate having a lower guide surface that supports the waste to be sent into the processing chamber 2, and a lower guide plate that has a lower guide surface that supports the waste to be sent into the processing chamber 2. A lower stage drive section that changes the inclination angle. For example, the lower guide section 4 includes a first lower guide section 41 and a second lower guide section 42 .

The configuration of the first lower guide section 41 will be described with reference to FIG. 2(a). The first lower guide section 41 includes a first lower rotation shaft 411 , a first lower guide plate 412 , and a first lower drive section 413 .

The first lower rotation shaft 411 extends in the horizontal direction with the first lower axis DL1 as the central axis. Hereinafter, the horizontal direction in which the first lower rotating shaft 411 extends will be referred to as the X-axis direction, the vertically upward direction will be referred to as the Z-axis direction, and the direction perpendicular to the X-axis direction and the Z-axis direction will be referred to as the Y-axis direction. The first lower rotating shaft 411 is disposed near the lower end 32 of the waste receiving hopper 3 and 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 rotation shaft 411 rotates around the first lower axis DL1.

The first lower guide plate 412 has a first lower guide surface 41a that supports waste 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 into a plate shape so as to protrude from the outer peripheral surface of the first lower rotating shaft 411.

The first lower drive unit 413 changes the angle of inclination of the first lower guide surface 41a by changing the rotation angle of the first lower guide plate 412 around the horizontal first lower axis DL1. The inclination angle is the inclination angle of the first lower guide surface 41a with respect to the horizontal plane. The first lower drive section 413 changes the inclination angle β of the first lower guide surface 41a within a predetermined range. When the first lower drive section 413 sets the inclination angle β of the first lower guide surface 41a to a predetermined angle, the first lower guide surface 41a faces the entire circumference of the lower end 32, and the lower end 32 is closed. . When the first lower drive section 413 rotates the first lower guide plate 412 so as to move the first lower guide surface 41a away from the lower end 32, the lower end 32 is opened. The first lower drive unit 413 includes a power source for rotating the first lower rotation shaft 411 and a sensor that detects the rotation angle of the first lower rotation shaft 411 . The power source of the first lower drive section 413 is, for example, an electric motor or a hydraulic cylinder. The sensor of the first lower drive section 413 is, for example, a rotary encoder or a potentiometer.

The first lower guide section 41 adjusts the falling 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 to a predetermined range, the waste slides down the first lower guide surface 41a in the horizontal direction (in the negative direction of the Y axis). ). Therefore, the first lower guide section 41 shifts the falling position of the waste toward the negative direction of the Y-axis by setting the inclination angle β of the first lower guide surface 41a within a predetermined range.

The configuration of the second lower guide section 42 will be described with reference to FIG. 2(b). 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 .

The second lower rotation shaft 421 extends in the horizontal direction with the second lower axis DL2 parallel to the first lower rotation shaft 411 as the central axis. The second lower rotating shaft 421 is disposed near the lower end 32 of the waste receiving hopper 3 and 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 rotation shaft 421 is also arranged at the same Z-axis position as the Z-axis position where the first lower rotation shaft 411 is arranged. The second lower rotation shaft 421 rotates around the second lower axis DL2.

The second lower guide plate 422 has a second lower guide surface 42a that adjusts the falling position of waste. The second lower guide plate 422 rotates together with the second lower rotation shaft 421 . The second lower guide plate 422 is integrated with the second lower rotating shaft 421. For example, the second lower stage guide plate 422 is formed in a plate shape so as to protrude from the outer peripheral surface of the second lower stage rotating shaft 421.

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 around the second lower stage axis DL2 parallel to the first lower stage axis DL1. do. The inclination angle is the inclination angle of the second lower guide surface 42a with respect to the horizontal plane. The second lower stage drive section 423 changes the inclination angle γ of the second lower stage guide surface 42a to a predetermined range. The second lower stage drive section 423 has a power source for rotating the second lower stage rotation shaft 421 and a sensor that detects the rotation angle of the second lower stage rotation shaft 421. The power source of the second lower drive section 423 is, for example, an electric motor or a hydraulic cylinder. The sensor of the second lower drive section 423 is, for example, a rotary encoder or a potentiometer.

The lock portion 424 supports the first lower guide plate 412 with the lower end 32 closed. The lock portion 424 is formed to protrude from the outer circumferential surface of the second lower rotating shaft 421 . The direction in which the lock portion 424 protrudes from the outer circumferential surface of the second lower rotary shaft 421 and the direction in which the second lower guide plate 422 protrudes from the outer circumferential surface of the second lower rotary shaft 421 are different from each other. When the lock portion 424 supports the first lower guide plate 412 with the lower end 32 closed, the inclination angle γ of the second lower guide surface 42a is set to a predetermined angle. The lock portion 424 moves away from the first lower guide plate 412 as the second lower guide plate 422 rotates in the direction of increasing the inclination angle γ, and is moved to a position where it does not interfere with the rotation of the first lower guide plate 412. evacuate.

The second lower guide section 42 adjusts the falling 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 to a predetermined range, the waste may slide down the second lower guide surface 42a and also move horizontally (in the positive direction of the Y axis). Moving. Therefore, the second lower guide section 42 shifts the falling position of the waste toward the positive direction of the Y-axis by setting the inclination angle γ of the second lower guide surface 42a within a predetermined range.

FIG. 3 is an enlarged schematic diagram illustrating the configuration of the upper guide section 5. As shown in FIG. The upper guide section 5 includes an upper guide plate having an upper guide surface for adjusting the falling position of the waste to be sent to the lower guide section 4, and an upper guide plate arranged around a horizontal upper axis at a twisting position with respect to the lower axis. and an upper stage drive section that changes the inclination angle of the upper stage guide surface by changing the rotation angle of the upper stage guide surface. For example, the upper guide section 5 includes a first upper guide section 51 and a second upper guide section 52.

The first upper guide section 51 will be explained with reference to FIG. 3(a). 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 .

The first upper rotation shaft 511 extends in the horizontal direction with a horizontal first upper axis UL1 that is twisted with respect to the first lower axis DL1 as its central axis. For example, the first upper rotating shaft 511 extends in the Y-axis direction. The first upper rotation shaft 511 rotates around the first upper axis UL1.

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 rotation shaft 511. The first upper guide plate 512 is integrated with the first upper rotating shaft 511. For example, the first upper stage guide plate 512 is formed in a plate shape so as to protrude from the outer peripheral surface of the first upper stage rotating shaft 511.

The first upper stage drive unit 513 changes the rotation angle of the first upper stage guide plate 512 around the horizontal first upper stage axis UL1 which is in a twisted position with respect to the first lower stage axis DL1. change the angle of inclination. The inclination angle is the inclination angle of the first upper guide surface 51a with respect to the horizontal plane. The first upper stage drive section 513 changes the inclination angle α1 of the first upper stage guide surface 51a to a predetermined range. The first upper stage drive section 513 has a power source for rotating the first upper stage rotating shaft 511. The power source of the first upper stage drive section 513 is, for example, an electric motor or a hydraulic cylinder. In one example, the first upper stage drive section 513 rotates the first upper stage rotation shaft 511 according to the movement of the hydraulic cylinder to the open end and the closed end. The first upper drive unit 513 may include a sensor that detects the rotation angle of the first upper rotation shaft 511. The sensor of the first upper stage drive section 513 is, for example, a rotary encoder or a potentiometer.

The first upper guide section 51 adjusts the falling position of the waste in the positive direction of the X-axis. For example, when the first upper drive section 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 is moved horizontally (on the X axis). (forward direction).

The configuration of the second upper guide section 52 will be explained with reference to FIG. 3(b). 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 .

The second upper rotation shaft 521 extends in the horizontal direction with the second upper axis UL2 parallel to the first upper rotation shaft 511 as the central axis. The first upper rotation shaft 511 is arranged above the waste receiving hopper 3. The second upper rotation shaft 521 rotates around the second upper axis UL2.

The second upper guide plate 522 has a second upper guide surface 52a that adjusts the falling direction of waste. The second upper guide plate 522 rotates together with the second upper rotation shaft 521. The second upper guide plate 522 is integrated with the second upper rotation shaft 521. For example, the second upper stage guide plate 522 is formed in a plate shape so as to protrude from the outer peripheral surface of the second upper stage rotating shaft 521.

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

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

FIG. 4 is a schematic diagram illustrating the range of dropping positions of waste. The lower guide section 4 and the upper guide section 5 adjust the falling position of waste in two stages. In FIG. 4, a diagonally shaded area D1 rising to the right exemplifies a range in which the lower guide portion 4 can independently adjust the falling position. A diagonally lined area D2 downward to the right exemplifies a range in which the lower guide part 4 and upper guide part 5 can adjust the falling position in addition to the diagonally lined area D1 upward to the right.

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

The upper stage guide section 5 is switched between open and closed states by the upper stage drive section. The open state is a position where the upper guide surface of the upper guide section 5 does not actively adjust the falling position of the waste into the waste receiving hopper 3 due to contact with the waste falling from the conveyor 9. refers to the state in which The closed state means that the upper guide surface of the upper guide section 5 comes into contact with the waste that has fallen from the conveyor 9, and adjusts the falling position of the waste into the waste receiving hopper 3 to a predetermined position. Refers to the state of being in a certain position. For example, the upper guide surface of the upper guide section 5 is set by the upper drive section to an inclination angle corresponding to the open state or to an inclination angle corresponding to the closed state. In another example, the upper guide section 5 directs the falling position of the waste onto the lower guide surface in the first direction (X-axis direction) by tilting the upper guide surface set to a predetermined inclination angle by the upper drive section. Adjust so that it is at the specified position. For example, the upper guide section 5 has a first upper guide plate 512 that moves the falling position of the waste toward the positive direction of the X-axis, and a second upper guide plate 522 that moves the falling position of the waste toward the negative direction of the X-axis. By adjusting the strength of the gathering action, the falling position of the waste in the X-axis direction is adjusted. In other words, the upper guide section 5 has an inclination of the first upper guide surface 51a set to a predetermined inclination angle by the first upper drive section 513 and a second inclination angle set to a predetermined inclination angle by the second upper drive section 523. By adjusting the inclination of the second upper guide surface 52a, the falling position of the waste onto the first lower guide surface 41a is adjusted to a predetermined position in the first direction. The waste is supported by the lower guide portion 4 within the waste receiving hopper 3, for example, between the left wall 21L located in the first direction, between the left wall 21L and the right wall 21R, or near the right wall 21R.

The lower guide section 4 tilts the lower guide surface set to a predetermined inclination angle by the lower drive section, so that the waste falls into the processing chamber 2 in a second direction (Y-axis direction) that intersects the first direction. Adjust so that it is at the specified position. For example, the lower guide part 4 has the function of shifting the falling position of waste toward the negative direction of the Y-axis using the first lower guide plate 412, and moving the falling position of waste toward the positive direction of the Y-axis using the second lower guide plate 422. The falling position of the waste in the Y-axis direction can be adjusted by adjusting the strength of the effect on the Y-axis. In other words, the lower guide section 4 has an inclination of the first lower guide surface 41a set to a predetermined inclination angle by the first lower drive section 413 and a predetermined inclination angle set by the second lower drive section 423. By adjusting the inclination of the second lower guide surface 42a, the falling position of the waste into the processing chamber 2 is adjusted to a predetermined position in the second direction. The waste is charged 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.

The upper guide section 5 adjusts the dropping position of the waste within the range of the inner diameter of the waste receiving hopper 3. Since the lower guide part 4 is provided below the waste receiving hopper 3, it is possible for the waste to fall beyond the inner diameter of the waste receiving hopper 3 toward the peripheral wall 21 inside the processing chamber 2. For example, the waste sent into the waste receiving hopper 3 via the upper guide part 5 is supported by the first lower guide surface 41a of the first lower guide plate 412. While sliding down the first lower guide surface 41a, the waste supported by the first lower guide surface 41a moves in the positive direction of the X axis intersecting the sliding direction (negative direction of the Y axis) and in the negative direction of the It leaks in both directions. The relationship between the amount of leakage in the positive direction of the X-axis and the amount of leakage in the negative direction of the X-axis differs depending on how waste is distributed in the waste receiving hopper 3. For example, if the waste is supported in the waste receiving hopper 3 toward the positive direction of the X-axis, the amount of waste leaking in the positive direction of the This will be more than the amount of waste leaked out. Therefore, the influence of the deviation within the waste receiving hopper 3 extends beyond the inner diameter of the waste receiving hopper 3 to the peripheral wall 21 within the processing chamber 2.

FIG. 5 is a schematic diagram illustrating temperature measurement points 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 lined up in the circumferential direction, and one area A9 located at the center.

The plurality of temperature sensors 12 are arranged at equal intervals in the circumferential direction of the peripheral wall 21 . The plurality of temperature measurement points TP are lined up along the peripheral wall 21 of the processing chamber. The plurality of temperature sensors 12 transmit detection results in each of the plurality of areas within the processing chamber 2 to the control device 100. In one example, the waste charging device 1 comprises fourteen temperature sensors 12. The plurality of temperature sensors 12 transmit detection results in eight areas A1 to A8 arranged in the circumferential direction to the control device 100.

The level sensor 13 detects coordinate information (x, y, z) of each of the plurality of level measurement points. For example, the level sensor 13 detects coordinate information with 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 height that serves as a reference for the level of waste. The level sensor 13 detects the levels at a plurality of level measurement points LP for each of a plurality of areas within the processing chamber 2 . For example, the plurality of level measurement points LP include a plurality of surrounding measurement points CP arranged to surround the center C of the processing chamber 2 between the center C of the processing chamber 2 and the plurality of temperature measurement points TP. The plurality of level measurement points LP include three annular surrounding measurement points CP having different diameters. The level sensor 13 transmits detection results in each of a plurality of areas within the processing chamber 2 to the control device 100.

The control device 100 aggregates the plurality of level measurement points LP for each area. The control device 100 uses, for example, the average value, median value, minimum value, maximum value of the plurality of level measurement points LP in the area, or the value of a representative point among the plurality of level measurement points LP, etc. as the level measurement point of the area. It may be aggregated as

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

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

Console 200 has a monitor 211 and an input section 212. For example, monitor 211 displays information for the operator. For example, the monitor 211 functions as a display section for information regarding the detection results of the plurality of temperature sensors 12 and information regarding the detection results of the level sensor 13. The monitor 211 is configured with, for example, a liquid crystal display. The input unit 212 receives input from an operator. The input unit 212 includes, for example, an operation switch, a keyboard, a mouse, a touch panel, or the like.

The hardware configuration of the control device 100 is not necessarily limited to configuring functional modules by executing programs. For example, the control device 100 may configure these functions using a dedicated logic circuit or an ASIC (Application Specific Integrated Circuit).

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

The acquisition unit 101 acquires various information necessary for controlling the waste charging device 1. For example, the acquisition unit 101 acquires the detection results of the plurality of temperature sensors 12, the detection results of the level sensor 13, the detection results of the load cell 10, information stored in the storage 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 plurality of temperature sensors 12. For example, the acquisition unit 101 calculates, for each of a plurality of areas, a statistical value (for example, an average value) of the temperature detected by one or more temperature sensors 12 located within the area as the temperature of the area. Based on the detection results of the level sensor 13, the level for each area is calculated. For example, the acquisition unit 101 calculates, for each of a plurality of areas, a statistical value (for example, an average value) of the level of one or more level measurement points located within the area as the level of the area.

In the processing chamber 2, if the waste is accumulated in an extremely uneven manner, or if the distance between the level sensor and the waste is close, an unmeasurable area may occur where the level cannot be measured normally. In such a case, the acquisition unit 101 may estimate the level of the unmeasurable area. FIG. 8 is a schematic diagram for explaining estimation of the level of an unmeasurable area. The acquisition unit 101 identifies an unmeasurable area where the level cannot be measured based on the positions of the plurality of level measurement points LP. The acquisition unit 101 estimates the level of the unmeasurable area based on the levels of level measurement points LP around the unmeasurable area.

For example, the acquisition unit 101 identifies the unmeasurable area based on the positions of the plurality of level measurement points that could be obtained and the positions of the plurality of level measurement points that could not be obtained. Here, the description will be made assuming that there is no level measurement point in area A8 (number of measurement points=0). The acquisition unit 101 determines the level of area A8 based on the levels of a plurality of 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. presume. In one example, the acquisition unit 101 obtains the average value, median value, minimum value, and maximum value of the levels of the plurality of level measurement points LP in the partial areas A71, A91, and A11, or the representative point of the plurality of level measurement points LP. The level of area A8 is estimated based on the value etc.

Returning to FIG. 7, the charging determination unit 102 determines whether to charge waste into the processing chamber 2 based on the levels of multiple areas within the processing chamber 2.

The area selection unit 103 selects a area for dropping waste from among the plurality of areas based on at least one of the detection results of the plurality of temperature sensors 12 and the detection result of the level sensor 13 in each of the plurality of areas in the processing chamber 2. Select the area to be supplied. In one example, the area selection unit 103 selects the area with the highest temperature among the plurality of areas as the supply target area. In another example, the area selection unit 103 selects the lowest level area among the plurality of areas as the supply target area.

In another example, the area selection unit 103 determines whether there is a first area whose temperature exceeds a predetermined temperature threshold among the plurality of areas. If there is a first area, the area selection unit 103 selects the area with the highest temperature in the first area as the supply target area. If the first area does not exist, the area selection unit 103 selects the second area of the lowest level among the plurality of areas as the supply target area.

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

The angle calculation unit 104 calculates an upper target angle with respect to the upper guide surface and a lower target angle with respect to 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 with respect to the first lower guide surface 41a and the second lower guide surface 42a, and a lower target angle with respect to the first upper guide surface 51a and the second upper guide surface 52a. The angle calculation unit 104 may determine the inclination angle corresponding to the open state or the inclination angle corresponding to the closed state as the upper target angle with respect to the first lower guide surface 41a and the second lower guide surface 42a.

The angle calculation unit 104 refers to a table that defines an upper target angle and a lower target angle for each of the plurality of areas in the processing chamber 2, and selects or sets an upper target angle and a lower target angle corresponding to the supply target area. You may. The table is generated in advance based on actual machine tests or simulations, and is stored in the storage unit 300.

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 an upper target angle and a lower target angle for each area. The table has an inclination angle α1 of the first upper guide surface 51a, an inclination angle α2 of the second upper guide surface 52a, an inclination angle β of the first lower guide surface 41a, and a second lower guide surface 42a corresponding to the supply target area. The inclination angle γ is determined. Supply target areas "1" to "9" in the table correspond to areas A1 to A9, respectively.

As shown in FIG. 9, angles G1 to G2 are set as the upper target angle for each area, and angles G3 to G7 are set as the lower target angle for each area. For example, the angle G1 or G2 is set for the inclination angle α1 of the first upper guide surface 51a depending on the area. The angle G1 or G2 is set to the inclination angle α2 of the second upper guide surface 52a 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.

The angle G1 is equal to or larger than the angle of repose of the waste, and is an angle at which the falling position of the waste into the waste receiving hopper 3 can be adjusted. For example, the angle G1 is set in a range of 40° or more and 50° or less. In one example, angle G1 is 40°.

The angle G2 is an angle that does not actively adjust the falling position of the waste, and is an angle that does not actively adjust the falling position of the waste, and does not come into contact with surrounding objects (for example, the inner circumferential surface 3a of the waste receiving hopper 3) at the installation location of the first upper guide section 51. It is an angle that does not. Here, "not actively" includes that the falling waste does not come into contact with the first upper guide surface 51a, and that the falling position of the waste does not substantially change even though it comes into contact with the first upper guide surface 51a. For example, the angle G2 is set in a range of 75° or more and 80° or less. In one example, angle G2 is 76°.

The angle G3 is greater than or equal to the angle of repose of the waste, and is an angle that allows adjustment of the falling position of the waste into the waste receiving hopper 3. For example, the angle G3 is set in a range of 40° or more and 50° or less. In one example, angle G3 is 50°.

The angle G4 is an angle that does not actively adjust the falling position of the waste and does not come into contact with surrounding objects (for example, the inner peripheral surface 2a of the processing chamber 2) at the installation location of the first upper guide section 51. It is. Here, "not actively" includes suppressing the influence of the waste material sliding down from the first lower guide surface 41a. For example, the angle G4 is set in a range of 75° or more and 80° or less. In one example, angle G4 is 80°.

The angle G5 is equal to or larger than the angle of repose of the waste, and is an angle at which the falling position of the waste into the processing chamber 2 can be adjusted. More specifically, the angle G5 is an angle at which the falling position of the waste can be adjusted near the front wall 21F (see FIG. 4) or the center of the processing chamber 2. For example, the angle G5 is set in a range of 40° or more and 50° or less. In one example, angle G5 is 47°.

Angle G6 is an angle that allows adjustment of the falling position of the waste into the processing chamber 2, and is an angle that does not come into contact with surrounding objects (for example, the first lower guide part 41 facing the second lower guide part 42). It is. More specifically, the angle G6 is an angle that allows adjustment of the dropping position of the waste near the center in the front-rear direction within the processing chamber 2. For example, the angle G6 is set in a range of 60° or more and 75° or less. In one example, angle G6 is 75°.

The angle G7 is an angle that does not actively adjust the falling position of the waste and does not come into contact with surrounding objects (for example, the inner circumferential surface 2a of the processing chamber 2) at the installation location of the second lower guide section 42. It is. Here, "not actively" includes suppressing the influence of the waste material sliding down from above the second lower guide surface 42a. For example, the angle G7 is set in a range of 75° or more and 180° or less. In one example, angle G7 is 84.5°.

When there are no objects around the installation locations of the upper guide section 5 and the lower guide section 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.

In one example, when the supply target area is "1", the table has an inclination angle α1 of the first upper guide surface 51a = angle G2 (for example, 76°), an inclination angle α2 of the second upper guide surface 52a = angle G2 (for example, 76 degrees), the inclination angle β of the first lower guide surface 41a = angle G3 (for example, 50 degrees), and the inclination angle γ of the second lower guide surface 42a = angle G7 (for example, 84.5 degrees). In this case, the waste falls from the conveyor 9 into the waste receiving hopper 3 and is supported by the lower guide section 4. The falling position of the waste is also adjusted by the lower guide section 4, and the waste is loaded closer to the rear wall 21B (see FIG. 4) of the processing chamber 2.

In another example, when the supply target area is "4", the table has an inclination angle α1 of the first upper guide surface 51a = angle G1 (for example, 40°), an inclination angle α2 of the second upper guide surface 52a = angle G2 (for example, 76 degrees), the inclination angle β of the first lower guide surface 41a = angle G4 (for example, 80 degrees), and the inclination angle γ of the second lower guide surface 42a = angle G5 (for example, 47 degrees). In this case, the falling position of the waste is adjusted by the upper guide part 5, and the waste is supported by the lower guide part 4 near the right wall 21R (see FIG. 4) within the waste receiving hopper 3. The falling position of the waste is also adjusted by the lower guide section 4, and the waste is loaded closer to the front wall 21F (see FIG. 4) of the processing chamber 2.

Returning to FIG. 7, the cutting amount determination unit 105 determines the amount of waste to be cut out per one time. For example, the cut-out amount determination unit 105 determines a target load, which is a target for the amount of waste to be cut out per one time, which is input into the console 200, as the cut-out amount.

The output unit 106 outputs information regarding the in-furnace situation to the console 200. Information regarding the situation inside the furnace includes, for example, temperatures and levels in multiple areas. The console 200 functions as a display unit for information regarding the inside of the reactor.

The control section 107 includes a conveyor control section 107a, an upper control section 107b, a seal valve control section 107c, an auxiliary material control section 107d, a gas control section 107e, and a lower control section 107f. The conveyor control unit 107a controls the operation of the conveyor 9. The upper stage control section 107b controls the operation of the upper stage guide section 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 loading device 7. The gas control section 107e controls the operation of the gas supply section 8. The lower stage control section 107f controls the operation of the lower stage guide section 4.

[Operation of waste charging device]
An example of a waste charging method using the waste charging device 1 will be explained with reference to FIGS. 10 to 13. The waste charging method by the waste charging device 1 is executed by the control device 100 controlling each element of the waste charging device 1. FIG. 10 is a flowchart illustrating the operation of the waste charging device 1.

In step S<b>1 , the acquisition unit 101 of the control device 100 acquires the levels of the waste in the processing chamber 2 at a plurality of level measurement points from the level sensor 13 . For example, the acquisition unit 101 includes a plurality of level measurement points CP arranged around the center C of the processing chamber 2 between the center C of the processing chamber 2 and the plurality of temperature measurement points TP. Obtain the LP level (see Figure 5).

In step S2, the charging determination unit 102 of the control device 100 determines a determination level based on the level in one or more predetermined areas among the plurality of areas. For example, the charging determination unit 102 determines the average value, median value, maximum value, or minimum value of the levels in two or more areas among the plurality of areas as the determination level. In one example, the charging determination unit 102 determines the average value of the levels of 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 (eg, 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 value is lower than the stock line mentioned above. In another example, the charging determination threshold may be at the same height as the stock line or may be 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 higher than the charging determination threshold (NO in step S2), the process returns to step S1.

In step S3, the charging determination unit 102 determines a second determination level based on the level in one or more predetermined areas among the plurality of areas. For example, the charging determination unit 102 determines the average value, median value, maximum value, or minimum value of the levels in two or more areas among the plurality of areas as the second determination level. In one example, the charging determination unit 102 determines the average value of the levels of 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 (eg, area A9 located in the center) as the second determination level. Alternatively, the charging determination unit 102 determines the average value of the levels of four areas in descending order of level among areas A1 to A9 as the second determination level. Then, the charging determination unit 102 determines whether the second determination level is lower than the 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 waste can be charged 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 may be lower than the stock line. If the second determination level is below 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 fact that the second determination level exceeds the upper charging determination threshold, the charging determination unit 102 cancels the control for charging the waste into the processing chamber 2.

In step S<b>4 , the acquisition unit 101 acquires temperatures at a plurality of temperature measurement points from a plurality of temperature sensors 12 regarding the temperature inside the processing chamber 2 . For example, the plurality of temperature sensors 12 detect temperatures at a plurality of temperature measurement points in eight areas A1 to A8 lined up in the circumferential direction (see FIG. 5).

In step S5, the area selection unit 103 of the control device 100 executes a process of selecting a supply target area. Details of the supply target area selection process will be described later.

In step S6, the waste material charging device 1 executes a waste material charging process. Details of the waste charging process will be described later. The flow shown in FIG. 10 is repeated, for example, at predetermined time intervals.

[Selection process of supply target 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 supply target area selection process.

In step S51, the area selection unit 103 determines whether there is an area whose temperature exceeds a predetermined temperature threshold. The temperature threshold has a first threshold and a second threshold that is higher in temperature than the first threshold. For example, the area selection unit 103 determines whether there is an area where the temperature exceeds a first threshold value. 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.

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.

In step S53, the area selection unit 103 determines whether the current interrupt timing is reached. The interrupt timing refers to the timing at which a supply target area is selected by prioritizing the level over a predetermined cycle order for a plurality of areas. The interrupt timing is determined by, for example, the number of times waste is charged or a predetermined time interval. In one example, the interrupt timing may be determined such that the area to be supplied is selected once with priority given to the level after the waste is charged twice to the areas in cycle order. If the current time is the interrupt timing (YES in step S53), the process proceeds to step S58. If the current time is not the interrupt timing (NO in step S53), the process proceeds to step S59.

In step S54, the area selection unit 103 determines whether the levels of all areas exceed the selection cancellation threshold among the levels of the areas where the temperature exceeds the second threshold. The selection cancellation threshold (see FIG. 13) is a height at which it is determined that there is no need to newly charge waste 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. When there is an area where the temperature exceeds the second threshold, the area selection unit 103 determines whether the area selection unit 103 supplies the The selection of the area where the temperature exceeds the second threshold value as the target area is canceled.

In step S55, the area selection unit 103 determines whether the levels of all areas exceed the selection cancellation threshold among the levels of the areas where the temperature exceeds the first threshold. If the level is 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 higher 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. When there is an area where the temperature exceeds the first threshold, the area selection unit 103 determines whether the supply Cancel selection of the area where the temperature exceeds the first threshold value as the target area.

In step S541, the area selection unit 103 excludes areas that are equal to or greater than the selection cancellation threshold from candidates for supply target areas.

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

In step S551, the area selection unit 103 excludes areas that are equal to or greater than the selection cancellation threshold from candidates for supply target areas.

In step S57, the area selection unit 103 selects the area with the lowest level as the supply target area from among the at least one area where the temperature exceeds the first threshold value. If there are multiple areas where the temperature exceeds the first threshold, the area selection unit 103 selects the areas in descending order of temperature as supply target areas.

In step S58, the area selection unit 103 selects the lowest level area among the plurality of areas as the supply target area.

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 the supply target area.

[Waste charging treatment]
An example of the process of step S6 shown in FIG. 10 will be described with reference to FIG. 12. FIG. 12 is a flowchart illustrating the waste charging process.

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

After step S61, the control device 100 may charge the auxiliary material into the waste receiving hopper 3. For example, the auxiliary material control unit 107d of the control device 100 controls the operation of the auxiliary material loading device 7. The secondary material control unit 107d charges the secondary material into the waste receiving hopper 3 via the secondary material chute 71 by controlling the secondary material seal valve 73 to open.

In step S62, the control device 100 sends an inert gas into the waste receiving hopper 3 to replace the gas (for example, carbon monoxide, etc.) in the waste receiving hopper 3 with the inert gas. For example, the gas control unit 107e of the control device 100 indicates that 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 part 4. In this state, the operation of the gas feeding section 8 is controlled so as to send an inert gas such as nitrogen into the waste receiving hopper 3. Since the lower end 32 is not closed, gas (for example, carbon monoxide, etc.) that flows into the waste receiving hopper 3 from the processing chamber 2 when waste is charged is returned to the processing chamber 2. After the gas replacement is completed, the control device 100 controls the operation of the lower guide portion 4 so as to close the lower end 32 of the waste receiving hopper 3.

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.

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

In step S65, the control device 100 determines the amount of waste to be cut out per time. For example, the cut-out amount determination unit 105 of the control device 100 determines a target load that is a target for the amount of waste to be cut out per one time, which is input to the console 200, as the cut-out amount.

In step S66, the control device 100 causes the waste receiving hopper 3 to receive waste. For example, the conveyor control unit 107a of the control device 100 controls the operation of the conveyor 9 so that the amount of waste stored on the support surface 9a sent to the upper guide unit 5 per time can be increased or decreased. Control. In other words, the conveyor control unit 107a changes the amount of waste to be cut out per time on the conveyor 9 that is sent to the upper guide surface by changing the operation of the conveyor 9. When the waste is conveyed by the conveyor 9, it falls from the support surface 9a to the upper guide section 5, so that the load detected by the load cell 10 decreases. The conveyor control unit 107a controls the operating time of the conveyor 9 based on this change in load. In one example, the conveyor control unit 107a controls the operating time of the conveyor 9 so that the change in load detected by the load cell 10 reaches the target load. The waste conveyed by the conveyor 9 is guided to the upper guide section 5 by a waste chute 11. The falling position of the waste within the waste receiving hopper 3 is adjusted by the upper guide section 5.

That is, the control device 100 causes the waste to fall into the waste receiving hopper 3 via the upper guide section 5 with the lower end 32 closed by the lower guide surface (first lower guide surface 41a). The control device 100 adjusts the inclination of the upper guide surfaces (the first upper guide surface 51a and the second upper guide surface 52a) to the upper target angle, and moves the waste into the waste receiving hopper 3 via the upper guide section 5. let it fall. The control device 100 regulates the amount of waste sent to the upper guide surface.

In step S67, the waste charging device 1 stores waste on the support surface 9a of the conveyor 9 as necessary. For example, the support surface 9a stores waste that is thrown in from above the support surface 9a by a crane or the like. If a sufficient amount of waste is already stored on the support surface 9a, there is no need to add new waste. For example, the control device 100 determines to store waste on the conveyor 9 when the load of waste on the conveyor 9 detected by the load cell 10 is below the threshold, and the control device 100 determines that the waste is stored on the conveyor 9 when the load of waste exceeds the threshold. In some cases, it may be decided not to make any new inputs of waste. The process of step S67 may be performed in parallel with the processes of step S68 and subsequent steps.

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 so as to cover the upper end 31. That is, the control device 100 closes 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). Controls the upper seal valve 6.

In step S69, the control device 100 sends an inert gas into the waste receiving hopper 3 to replace the gas (for example, oxygen, etc.) in the waste receiving hopper 3 with the inert gas. For example, the gas control unit 107e of the control device 100 is in a state where 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 part 4. Then, the operation of the gas feeding section 8 is controlled so as to send an inert gas such as nitrogen into the waste receiving hopper 3. The exhaust gas section 14 discharges the gas inside the waste receiving hopper 3 to the outside when the gas (for example, oxygen, etc.) inside the waste receiving hopper 3 is replaced with inert gas by the gas feeding section 8 .

In step S70, the control device 100 drives the lower guide section 4. For example, the angle calculation unit 104 calculates a lower target angle with respect to the lower guide surface so that the waste falls into the supply target area. For example, the angle calculation unit 104 refers to a table that defines an upper target angle and a lower target angle for each of a plurality of areas in the processing chamber 2, and selects a lower target angle corresponding to the supply target area. The lower control section 107f of the control device 100 controls the first lower drive section 413 and the second lower drive section 423 so as to correspond to the lower target angle with respect to the first lower guide surface 41a and the second lower guide surface 42a. drive. The waste supported by the first lower guide surface 41a is charged into the processing chamber 2.

That is, the control device 100 opens the lower end of the waste receiving hopper 3 using the lower guide portion 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 in the waste receiving hopper 3 has been replaced with the inert gas sent by the gas supply section 8, the control device 100 further controls the lower guide section 4 so as to open the lower end 32 of the waste receiving hopper 3. Control. The control device 100 adjusts the inclination of the lower guide surfaces (the first lower guide surface 41a and the second lower guide surface 42a) to the lower target angle, and causes the lower guide section 4 to cause the waste to fall into the processing chamber 2.

[effect]
As explained above, the waste charging device 1 according to the present disclosure is a waste charging device 1 that charges waste from above into the vertically extending cylindrical processing chamber 2, and includes: A lower guide section 4 is provided in the upper part 22 of the processing chamber 2 and adjusts the falling position of waste sent into the processing chamber 2; a lower guide section 4 is provided above the lower guide section 4; An upper guide part 5 for adjusting the falling position of the waste sent to the waste container 4 is provided. The lower guide section 4 includes a lower guide plate having a lower guide surface that supports the waste to be sent into the processing chamber 2, and a lower guide plate that has a lower guide surface that supports the waste to be sent into the processing chamber 2. It has a lower stage drive part which changes an inclination angle. The upper guide section 5 includes an upper guide plate having an upper guide surface for adjusting the falling position of the waste to be sent to the lower guide section 4, and an upper guide plate arranged around a horizontal upper axis at a twisting position with respect to the lower axis. and an upper drive section that changes the inclination angle of the upper guide surface by changing the rotation angle of the upper guide surface.

In the waste charging device 1 according to the present disclosure, the dropping position of the waste is adjusted in two stages by the upper guide section 5 and the lower guide section 4, and the waste is charged into the processing chamber 2. For example, by changing the inclination angle of the upper guide surface by the upper drive part of the upper guide part 5, the falling position of the waste sent to the lower guide part 4 is adjusted. By changing the inclination angle of the lower guide surface by the lower drive section of the lower guide section 4, the falling position of the waste sent into the processing chamber 2 is adjusted. By combining the adjustment of the falling position by the upper guide section 5 and the lower guide section 4, it is possible to further suppress unevenness in the height of waste accumulation. The combination of adjusting the falling position is also effective in following the non-uniform volume reduction rate (falling rate) of waste within the processing chamber 2.

The waste charging device 1 may further include a waste receiving hopper 3 having a lower end 32 opening downward in the upper part 22 of the processing chamber 2 . The lower guide part 4 may be provided below the waste receiving hopper 3 so that the lower end 32 can be opened and closed by the lower guide surface. The upper guide section 5 may drop the waste into the waste receiving hopper 3. In this case, it is possible to adjust the position of the waste within the waste receiving hopper 3 and then drop the waste into the processing chamber 2. Thereby, the falling position into the processing chamber 2 can be stabilized.

The inner circumferential surface 2a of the processing chamber 2 may be located outside the inner circumferential surface 3a of the waste receiving hopper 3 at the lower end 32. According to the configuration in which the upper guide part 5 is located above the lower guide part 4, the range of deviation formed by the upper guide part 5 can be further expanded by the lower guide part 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 more effective.

The waste charging device 1 may further include a control device 100 that controls the upper guide section 5 and the lower guide section 4. The control device 100 allows the waste to fall into the waste receiving hopper 3 via the upper guide part 5 with the lower end 32 closed by the lower guide surface, and the waste that has fallen into the waste receiving hopper 3. The lower end 32 of the waste receiving hopper 3 may be opened by the lower guide portion 4 while the object is supported by the lower guide surface. By supporting the waste in the waste receiving hopper 3 before being sent to the processing chamber 2, the adjustment action by the upper guide section 5 can be stabilized.

The waste receiving hopper 3 may further have an upper end 31 that opens upward. An upper seal valve 6 may be further 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 in 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.

A gas supply section 8 for supplying inert gas into the waste receiving hopper 3 may be further provided. The control device 100 controls the upper seal valve 6 to close the upper end 31 of the waste receiving hopper 3 in a state where the waste that has fallen into the waste receiving hopper 3 is supported by the lower guide surface. Controlling the gas feeding unit 8 to send inert gas into the object receiving hopper 3 may be further performed. After the gas in the waste receiving hopper 3 has been replaced with the inert gas sent by the gas supply section 8, the control device 100 further controls the lower guide section 4 so as to open the lower end 32 of the waste receiving hopper 3. May be controlled. Before the waste is sent into the processing chamber 2, with the upper end 31 and lower end 32 of the waste receiving hopper 3 closed, the gas inside the waste receiving hopper 3 is replaced with an inert gas such as nitrogen. Ru. Thereby, operational stability within the processing chamber 2 can be improved.

The waste charging device 1 may further include a level sensor that detects the level at a plurality of level measurement points LP with respect to a level indicating the pile height of waste in the processing chamber 2. The control device 100 selects the supply target area in the processing chamber 2 based on the levels of the plurality of level measurement points LP, and sets the upper stage target angle and the upper stage guide surface so that the waste falls into the supply target area. Calculating a lower stage target angle with respect to the lower stage guide surface may be further executed. The control device 100 adjusts the inclination of the upper guide surface to the upper target angle and causes the waste to fall into the waste receiving hopper 3 via the upper guide part 5, and adjusts the inclination of the lower guide surface to the lower target angle. , the waste may be dropped into the processing chamber 2 by the lower guide section 4. By calculating the upper stage target angle and the lower stage target angle with respect to the supply target area for dropping the waste, the dropping position of the waste can be adjusted more appropriately. Thereby, it is possible to further suppress unevenness in the height of waste piles.

The control device 100 may refer to a table that defines an upper target angle and a lower target angle for each of the plurality of areas in the processing chamber 2, and select an upper target angle and a lower target angle corresponding to the supply target area. good. By referring to a table in which the upper target angle and the lower target angle are predetermined for each supply target area, the calculation load (and cost) of the control device 100 can be suppressed.

The upper guide section 5 adjusts the fall position of the waste onto the lower guide surface to a predetermined position in the first direction by the inclination of the upper guide surface which is set to a predetermined inclination angle by the upper drive section. You can. The lower guide section 4 adjusts the fall position of the waste into the processing chamber 2 to a predetermined position in a second direction intersecting the first direction by tilting the lower guide surface set to a predetermined inclination angle by the lower drive section. You may adjust it accordingly. In this case, the falling position of the waste sent into the processing chamber 2 can be adjusted more flexibly.

The upper guide part 5 includes a second upper guide plate 522 having a second upper guide surface 52a that adjusts the falling position of waste, and a rotation of the second upper guide plate 522 around a second upper axis UL2 parallel to the upper axis. It may further include a second upper stage drive section 523 that changes the inclination angle of the second upper stage guide surface 52a by changing the angle. The upper guide section 5 has an inclination of the upper guide surface set to a predetermined inclination angle by the upper drive section and an inclination of the second upper guide surface 52a set to a predetermined inclination angle by the second upper drive section 523. , the position at which the waste falls onto the lower guide surface may be adjusted to a predetermined position in the first direction. By combining the upper guide plate (first upper guide plate 512) and the second upper guide plate 522, the falling position of the waste sent to the lower guide part 4 can be adjusted more flexibly.

The lower guide part 4 includes a second lower guide plate 422 having a second lower guide surface 42a that adjusts the falling position of waste, and a rotation of the second lower guide plate 422 around a second lower axis DL2 parallel to the lower axis. It may further include a second lower drive section 423 that changes the inclination angle of the second lower guide surface 42a by changing the angle. The lower guide section 4 is configured by the inclination of the lower guide surface set to a predetermined inclination angle by the lower drive section and the inclination of the second lower guide surface 42a set to a predetermined inclination angle by the second lower drive section 423. , the position at which the waste falls into the processing chamber 2 may be adjusted to a predetermined position in the second direction. By combining the lower guide plate (first lower guide plate 412) and the second lower guide plate 422, the falling position of the waste sent into the processing chamber 2 can be adjusted more flexibly.

The waste charging device 1 may further include a conveyor 9 that has a support surface 9a capable of storing waste and that intermittently sends 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 at a time. By intermittently adjusting the amount of waste to be charged, the amount of waste in the processing chamber 2 can be stabilized. As a result, operational stability within the processing chamber 2 can be improved.

The waste charging 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 operating 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 charged. As a result, the amount of waste in the processing chamber 2 can be further stabilized.

The waste charging method according to the present disclosure is a waste charging method in which waste is charged from above into a vertically extending cylindrical processing chamber 2, and an upper guide surface is used to position the waste where it falls. The upper guide plate, which adjusts the This includes causing the waste to fall into the processing chamber 2 by rotating the lower guide plate that supports the object around the lower axis that is at a twist position with respect to the upper axis.

In the waste charging method according to the present disclosure, the dropping position of the waste is adjusted in two stages by the upper guide plate and the lower guide plate, and the waste is charged into the processing chamber 2. For example, by changing the inclination angle of the upper guide surface, the falling position of waste sent onto the lower guide surface can be adjusted. By changing the inclination angle of the lower guide surface, the falling position of the waste sent into the processing chamber 2 is adjusted. By combining the adjustment of the falling position by the upper guide plate and the lower guide plate, it is possible to further suppress unevenness in the height of waste piles. The combination of adjusting the falling position is also effective in following the non-uniform volume reduction rate (falling rate) of waste within the processing chamber 2.

In the waste charging method, when dropping waste onto the lower guide surface, the lower end 32 of the waste receiving hopper 3 provided above the processing chamber 2 is closed by the lower guide surface. When dropping the waste into the material receiving hopper 3 and dropping the waste into the processing chamber 2, the waste that has fallen into the waste receiving hopper 3 is supported by the lower guide surface. It may further include opening the lower end 32 by means of a guide surface to initiate the fall of the waste into the processing chamber 2. By supporting the waste in the waste receiving hopper 3 before being sent to the processing chamber 2, the adjustment action by the upper guide plate can be stabilized.

The waste charging method involves detecting the level at a plurality of level measurement points LP regarding the level indicating the pile height of waste in the processing chamber 2, and processing based on the level at the plurality of level measurement points LP. Selecting the supply target area in the chamber 2, setting the upper target angle with respect to the upper guide surface and the lower target angle with respect to the lower guide surface so that the waste falls into the supply target area, and setting the target angle with respect to the lower guide surface. When dropping waste, the inclination of the upper guide surface is adjusted to the upper target angle, and the waste is dropped into the waste receiving hopper 3 by the upper guide surface, and the waste is dropped into the processing chamber 2. In some cases, the method may further include adjusting the inclination of the lower guide surface to the lower target angle and causing the waste to fall into the processing chamber 2 by the lower guide surface. By calculating the upper stage target angle and the lower stage target angle with respect to the supply target area for dropping the waste, the dropping position of the waste can be adjusted more appropriately. Thereby, it is possible to further suppress unevenness in the height of waste piles.

The waste loading method may further include adjusting the amount of waste delivered to the upper guide surface. By adjusting the amount of waste to be charged, the amount of waste in the processing chamber 2 can be stabilized. As a result, operational stability within the processing chamber 2 can be improved.

The waste charging method involves 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. The method may further include changing the amount of waste to be cut out per time on the conveyor 9 to be sent to the upper guide surface. By intermittently adjusting the amount of waste to be charged, the amount of waste in the processing chamber 2 can be stabilized.

The waste charging method involves obtaining the target load of waste sent to the upper guide surface, detecting the load of waste stored by the conveyor 9, and detecting the change in the detected load as the target load. It may further include controlling the operating time of the conveyor 9 so as to reach . This improves the accuracy of adjusting the amount of waste to be charged. As a result, the amount of waste in the processing chamber 2 can be further stabilized.

The waste charging device 1 according to the present disclosure includes a vertically extending cylindrical processing chamber 2, a temperature sensor 12 that detects the temperature at a plurality of temperature measurement points TP regarding the temperature inside the processing chamber 2, and a processing A level sensor 13 is provided that detects the level at a plurality of level measurement points LP regarding the level indicating the height of waste piled up in the chamber 2.

When charging waste into a processing chamber 2 such as a melting furnace, the accumulation of waste may vary depending on the location where the waste is charged, the processing speed, and the like. As a result, the temperature within the processing chamber 2 (the temperature of the waste and the temperature of the gas) may become non-uniform. For example, when thermal decomposition and volume reduction of waste are partially promoted, partial cavities are generated, and the gas flow path within the processing chamber 2 becomes non-uniform. The gas in the processing chamber 2 is mainly an upward flow from the bottom of the chamber, and since this gas has a high temperature, non-uniformity of the gas flow path causes non-uniformity of the temperature within the processing chamber 2. In addition, uneven deposition of waste causes non-uniform thermal decomposition reactions within the processing chamber 2, which promotes non-uniform temperature within the processing chamber 2. Furthermore, if the waste is unevenly deposited, the temperature within the processing chamber 2 may become non-uniform due to the temperature of the waste itself. In the waste charging device 1 according to the present disclosure, the temperature sensor 12 detects the temperatures at the plurality of temperature measurement points TP, and the level sensor 13 detects the levels at the plurality of level measurement points LP. If the detection results of the temperature sensor 12 and level sensor 13 are biased, it can be detected that the waste accumulation status is biased. Since the waste accumulation situation can be grasped in more detail, it is effective for more detailed adjustment of the waste accumulation situation.

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

The waste charging device 1 is configured to drop waste from among the plurality of areas based on at least one of the detection results of the temperature sensor 12 and the detection result of the level sensor 13 in each of the plurality of areas in the processing chamber 2. It may further include a control device 100 that selects a supply target area. In this case, the supply target area for dropping the waste can be automatically selected.

The control device 100 determines the determination level based on the level in one or more predetermined areas among the plurality of areas, and controls the processing chamber 2 based on the determination level being lower than the predetermined charging determination threshold. Controls for loading waste may also be implemented. Since waste is charged when the amount of waste in the processing chamber 2 is decreasing, the amount of waste in the processing chamber 2 can be maintained appropriately.

The control device 100 determines a second determination level based on the level in one or more predetermined areas among the plurality of areas, and the second determination level is a predetermined upper charging determination threshold higher than the charging determination threshold. The control for charging the waste material into the processing chamber 2 may be canceled based on the fact that the value exceeds the threshold value. In this case, it can be said that waste is highly accumulated in some areas within the processing chamber 2, so there is no need to newly drop waste into the processing chamber 2. By canceling the charging of waste, the amount of waste in the processing chamber 2 can be maintained appropriately.

The control device 100 may select the area with the highest temperature among the plurality of areas as the supply target area. Areas where waste treatment is facilitated can become hot areas due to the creation of hot gas flow paths. By preferentially selecting the area with the highest temperature as the supply target area, the supply target area can be selected more appropriately.

The control device 100 may select the lowest level area among the plurality of areas as the supply target area. Levels will be lower in areas where waste disposal is facilitated. By preferentially selecting the lowest level area as the supply target area, the supply target area can be selected more appropriately.

The control device 100 determines whether there is a first area whose temperature exceeds a predetermined temperature threshold among the plurality of areas, and if there is a first area, selects the area with the highest temperature among the first areas as the supply target area. If the first area is not available, the second area having the lowest level among the plurality of areas may be selected 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), the supply target area can be selected more appropriately.

In the case where there is a first area, the control device 100 may cancel selection of the first area as the supply target area if the level in the first area exceeds a predetermined selection cancellation threshold. If the level of high temperature in the first area is above the predetermined selection cancellation threshold, it can be said that waste is highly accumulated in the first area, so new waste is not added to the first area even at high temperatures. There is no need to drop it. By canceling the selection of the supply target area, the amount of waste in the processing chamber 2 can be maintained appropriately.

The waste charging device 1 is provided at an upper part 22 in the processing chamber 2, and includes a lower guide section 4 that adjusts the falling position of waste sent into the processing chamber 2, and a lower guide section 4 located above the lower guide section 4. It may further include an upper guide section 5 that is provided and adjusts the falling position of the waste sent to the lower guide section 4. The lower guide section 4 includes a lower guide plate having a lower guide surface that supports the waste to be sent into the processing chamber 2, and a lower guide plate that has a lower guide surface that supports the waste to be sent into the processing chamber 2. It may also include a lower stage drive section that changes the inclination angle. The upper guide section 5 includes an upper guide plate having an upper guide surface for adjusting the falling position of the waste to be sent to the lower guide section 4, and an upper guide plate arranged around a horizontal upper axis at a twisting position with respect to the lower axis. and an upper drive section that changes the inclination angle of the upper guide surface by changing the rotation angle of the upper guide surface. The control device 100 controls the upper guide section 5 and the lower guide section 4 based on the supply target area and a table that determines the upper target angle with respect to the upper guide surface and the lower target angle with respect to the lower guide surface for each of the plurality of areas. You may. In this case, the dropping 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 in the processing chamber 2.

The level sensor 13 may detect the position and level of each of the plurality of level measurement points LP. The control device 100 identifies an unmeasurable area where the level cannot be measured based on the positions of a plurality of level measurement points LP, and estimates the level of the unmeasurable area based on the levels of the level measurement points LP around the unmeasurable area. You may. For example, if the waste is accumulated in an extremely uneven manner, or if the distance between the level sensor 13 and the waste is close, an unmeasurable area may occur where the level cannot be measured normally. In this case, by estimating the level of the unmeasurable area based on the level of the surrounding level measurement points LP, it is possible to grasp the waste accumulation situation in more detail.

[Modified example]
The present invention is not necessarily limited to the embodiments described above, and various changes can be made without departing from the spirit thereof. For example, in the above embodiment, it has been explained that the lower guide part 4 includes the first lower guide part 41 and the second lower guide part 42, but it may include only the first lower guide part 41. Although it has been described that the upper guide section 5 includes the first upper guide section 51 and the second upper guide section 52, it may include only one of them.

In the above embodiment, it has been explained that eight areas A1 to A8 lined up in the circumferential direction of the processing chamber 2 are selected in order as the cycle order, but waste is charged to areas A1 to A8 a predetermined number of times. After that, a further interruption charge may be carried out such that one centrally located area A9 is charged with waste.

In another example, the control device 100 obtains the area input by the operator into the console 200, selects the area input by the operator as the supply target area with priority over the cycle order, and interrupts the supply target area. Charging may also be carried out.

In the above embodiment, a waste melting furnace is exemplified as the equipment to which the waste charging device 1 is applied, but an incinerator or the like may be used. Since the incinerator does not require auxiliary materials, the waste charging device 1 does not need to include the auxiliary material charging device 7.

Although the above embodiment has been described as including a plurality of level measurement points LP including a plurality of surrounding measurement points CP, the present invention is not limited to this. FIG. 14 is a schematic diagram showing another example of level measurement points. The plurality of level measurement points LP1 may not include the surrounding measurement points CP. The plurality of level measurement points LP1 may be a set of level measurement points randomly distributed in each of the plurality of areas.

When comparing the magnitude of two numerical values within a computer system, either of the two criteria "greater than or equal to" and "greater than" may be used, and the two criteria "less than or equal to" and "less than" may be used. You can use either of them. Selection of such criteria does not change the technical significance of the process of comparing the magnitude relationship between two numerical values.

[Appendix E1]
A waste charging device that charges waste from above into a vertically extending cylindrical processing chamber,
a lower guide part that is provided at the upper part of the processing chamber and adjusts the falling position of the waste sent into the processing chamber;
an upper guide part that is provided above the lower guide part and adjusts a falling position of the waste sent to the lower guide part;
The lower guide part is
a lower guide plate having a lower guide surface that supports waste sent into the processing chamber;
a lower drive unit that changes the inclination angle of the lower guide surface by changing the rotation angle of the lower guide plate around a horizontal lower axis;
The upper guide part is
an upper guide plate having an upper guide surface for adjusting a falling position of waste sent to the lower guide part;
an upper drive unit that changes the inclination angle of the upper guide surface by changing the rotation angle of the upper guide plate around a horizontal upper axis that is twisted with respect to the lower axis;
Waste charging equipment.
[Appendix E2]
Further comprising a waste receiving hopper having a lower end opening downward at the upper part of the processing chamber,
The lower guide part is provided below the waste receiving hopper so as to open and close the lower end by the lower guide surface,
The upper guide part causes the waste to fall into the waste receiving hopper.
Waste charging device as described in Appendix E1.
[Appendix E3]
The waste charging device according to appendix E2, wherein the inner circumferential surface of the processing chamber is located outside the inner circumferential surface of the waste receiving hopper at the lower end.
[Appendix E4]
further comprising a control device that controls the upper guide section and the lower guide section,
The control device is configured to cause the waste to fall into the waste receiving hopper via the upper guide section with the lower end closed by the lower guide surface;
The lower end of the waste receiving hopper is opened by the lower guide part in a state where the waste that has fallen into the waste receiving hopper is supported by the lower guide surface. ,
Waste charging device as described in Appendix E3.
[Appendix E5]
The waste receiving hopper further has an upper end that opens upward,
Further comprising an upper seal valve provided between the upper guide part and the waste receiving hopper to open and close the upper end of the waste receiving hopper.
Waste charging device as described in Appendix E4.
[Appendix E6]
It further includes a gas supply section that sends inert gas into the waste receiving hopper,
The control device includes:
controlling the upper seal valve to close the upper end of the waste receiving hopper in a state where the waste that has fallen into the waste receiving hopper is supported by the lower guide surface;
further controlling the gas delivery unit to send an inert gas into the waste receiving hopper;
further controlling the lower guide part to open the lower end of the waste receiving hopper after the gas in the waste receiving hopper is replaced with the inert gas sent by the gas sending part;
Waste charging device as described in Appendix E5.
[Appendix E7]
Further comprising a level sensor that detects the level at a plurality of level measurement points regarding the level indicating the height of waste accumulation in the processing chamber,
The control device includes:
Selecting a supply target area in the processing chamber based on the levels at the plurality of level measurement points;
further calculating an upper stage target angle with respect to the upper stage guide surface and a lower stage target angle with respect to the lower stage guide surface so as to cause the waste to fall into the supply target area,
Adjusting the inclination of the upper guide surface to the upper target angle and dropping the waste into the waste receiving hopper via the upper guide part,
Adjusting the inclination of the lower guide surface to the lower target angle, and causing the lower guide part to drop the waste into the processing chamber.
Waste charging device as described in Appendix E6.
[Appendix E8]
The control device refers to a table that determines the upper target angle and the lower target angle for each of the plurality of areas in the processing chamber, and determines the upper target angle and the lower target angle corresponding to the supply target area. Select the waste charging device according to appendix E7.
[Appendix E9]
The upper guide section is configured to cause the waste to fall onto the lower guide surface at a predetermined position in the first direction by tilting the upper guide surface set to a predetermined inclination angle by the upper drive section. Adjust to
The lower guide section adjusts the fall position of the waste into the processing chamber at a predetermined position in a second direction intersecting the first direction by tilting the lower guide surface set to a predetermined inclination angle by the lower drive section. Adjust so that it is in the position of
The waste charging device according to any one of appendices E1 to 8.
[Appendix E10]
The upper guide part is
a second upper guide plate having a second upper guide surface that adjusts the falling position of the waste; and a rotation angle of the second upper guide plate about a second upper axis parallel to the upper axis; further comprising a second upper drive section that changes the inclination angle of the second upper guide surface;
Due to the inclination of the upper guide surface set to a predetermined inclination angle by the upper drive unit and the inclination of the second upper guide face set to a predetermined inclination angle by the second upper drive unit, the lower guide adjusting the falling position of the waste onto the surface to a predetermined position in the first direction;
Waste charging device as described in Appendix E9.
[Appendix E11]
The lower guide section is
a second lower guide plate having a second lower guide surface for adjusting the falling position of the waste, and a rotation angle of the second lower guide plate about a second lower axis parallel to the lower axis; further comprising a second lower drive section that changes the inclination angle of the second lower guide surface;
Due to the inclination of the lower guide surface set to a predetermined inclination angle by the lower drive section and the inclination of the second lower guide surface set to a predetermined inclination angle by the second lower drive section, the processing chamber is adjusting the falling position of the waste to a predetermined position in the second direction;
Waste charging device according to appendix E9 or 10.
[Appendix E12]
further comprising a conveyor having a support surface capable of storing waste and intermittently sending waste toward the upper guide section,
The operation of the conveyor is controlled so as to increase or decrease the amount of waste stored on the support surface to be cut out per time to be sent to the upper guide section.
Waste charging device according to any one of appendices E4 to 8.
[Appendix E13]
Further comprising a load cell that detects the load of waste stored by the conveyor,
The control device obtains a target load of waste to be sent to the upper guide section, and controls the operating time of the conveyor so that a change in the load detected by the load cell reaches the target load.
Waste charging device according to appendix E12.
[Appendix E14]
A waste charging method in which waste is charged from above into a vertically extending cylindrical processing chamber,
The upper guide plate, which adjusts the falling position of the waste by the upper guide plane, is rotated around a horizontal upper axis line, and the waste is dropped onto the lower guide surface of the lower guide plate provided at the upper part of the processing chamber. and,
Dropping the waste into the processing chamber by rotating a lower guide plate supporting the waste by a lower guide surface about a lower axis that is twisted with respect to the upper axis;
Waste charging method.
[Appendix E15]
When dropping waste onto the lower guide surface, the lower end of the waste receiving hopper provided above the processing chamber is closed by the lower guide surface, and the waste is dropped into the waste receiving hopper. dropping things and
When dropping waste into the processing chamber, the waste that has fallen into the waste receiving hopper is supported by the lower guide surface, and the lower end is opened by the lower guide surface and the waste is allowed to flow into the processing chamber. initiating the fall of waste;
The waste charging method according to appendix E14, further comprising:
[Appendix E16]
Detecting levels at a plurality of level measurement points with respect to a level indicating a height of accumulation of waste in the processing chamber;
Selecting a supply target area in the processing chamber based on the levels at the plurality of level measurement points;
setting an upper target angle with respect to the upper guide surface and a lower target angle with respect to 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 waste is dropped into the waste receiving hopper by the upper guide surface;
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 caused to fall into the processing chamber by the lower guide surface;
The waste charging method according to Appendix E15, further comprising:
[Appendix E17]
The waste charging method according to any one of appendices E14 to 16, further comprising adjusting the amount of waste sent to the upper guide surface.
[Appendix E18]
storing waste on a conveyor;
operating the conveyor to intermittently send waste on the conveyor to the upper guide surface;
Further comprising: changing the amount of waste on the conveyor that is sent to the upper guide surface per time by changing the operating operation of the conveyor;
Waste charging method described in Appendix E17.
[Appendix E19]
obtaining a target load of waste to be sent to the upper guide surface;
detecting the load of waste stored by the conveyor;
controlling the operating time of the conveyor so that the detected change in load reaches the target load;
The waste charging method according to appendix E18, further comprising:

[Appendix F1]
A cylindrical processing chamber extending vertically,
a temperature sensor that detects the temperature at a plurality of temperature measurement points regarding the temperature in the processing chamber;
a level sensor that detects the level at a plurality of level measurement points with respect to a level indicating the height of waste accumulation in the processing chamber;
A waste charging device comprising:
[Appendix F2]
The plurality of temperature measurement points are lined up 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,
Waste charging device described in Appendix F1.
[Appendix F3]
A control device that selects a supply target area for dropping waste from among the plurality of areas based on at least one of the detection result of the temperature sensor and the detection result of the level sensor in each of the plurality of areas in the processing chamber. The waste charging device according to appendix F2, further comprising:
[Appendix F4]
The control device determines a determination level based on a level in one or more predetermined areas among the plurality of areas, and controls the processing based on the determination level being lower than a predetermined charging determination threshold. Waste charging device according to appendix F3, further performing control for charging waste into the chamber.
[Appendix F5]
The control device determines a second determination level based on a level in one or more predetermined areas among the plurality of areas, and the control device determines a second determination level based on a level in one or more predetermined areas among the plurality of areas, and determines a predetermined upper device whose second determination level is higher than the charging determination threshold. The waste charging device according to appendix F4, which cancels the control for charging waste into the processing chamber based on the fact that the input determination threshold value is exceeded.
[Appendix F6]
The waste charging 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 charging device according to appendix F5, wherein the control device selects the lowest level area among the plurality of areas as the supply target area.
[Appendix F8]
The control device includes:
Determining whether there is a first area whose temperature exceeds a predetermined temperature threshold among the plurality of areas;
If there is the first area, select the area with the highest temperature in the first area as the supply target area,
If the first area does not exist, selecting the second area of the lowest level among the plurality of areas as the supply target area;
Waste charging device as described in Appendix F5.
[Appendix F9]
In the case where the first area is present, the control device cancels selection of the first area as the supply target area if the level in the first area exceeds a predetermined selection cancellation threshold. , the waste charging device described in Appendix F8.
[Appendix F10]
a lower guide part that is provided at the upper part of the processing chamber and adjusts the falling position of the waste sent into the processing chamber;
further comprising: an upper guide section that is provided above the lower guide section and adjusts a falling position of the waste sent to the lower guide section;
The lower guide part includes a lower guide plate having a lower guide surface that supports the waste to be sent into the processing chamber, and a lower guide plate that has a lower guide surface that supports the waste to be sent into the processing chamber, and a lower guide plate that has a lower guide surface by changing a rotation angle of the lower guide plate around a horizontal lower axis. a lower drive section that changes the inclination angle of the
The upper guide part includes an upper guide plate having an upper guide surface for adjusting the falling position of the waste to be sent to the lower guide part, and an upper guide plate having an upper guide surface that adjusts the falling position of the waste to be sent to the lower guide part, and an upper guide plate having an upper guide plate having an upper guide surface that adjusts the falling position of the waste to be sent to the lower guide part. an upper drive unit that changes the inclination angle of the upper guide surface by changing the rotation angle of the guide plate;
The control device is configured to control the upper guide section and the lower guide section based on the supply target area and a table that determines 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. control the guide,
Waste charging 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 a non-measurable 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;
The waste charging device according to any one of appendices F3 to F10.

1...Waste charging device, 2...Processing chamber, 3...Waste receiving hopper, 4...Lower guide section, 5...Upper guide section, 6...Upper seal valve, 7...Sub-material charging device, 8...Gas supply Part, 9... Conveyor, 10... Load cell, 11... Waste chute, 12... Temperature sensor, 13... Level sensor, 21... Peripheral wall, 22... Upper part, 23... Opening, 2a... Inner peripheral surface, 31... Upper end, 32... Lower end, 33... Peripheral wall, 3a... Inner circumferential surface, 41... First lower guide part, 42... Second lower guide part, 51... First upper guide part, 52... Second upper guide part, 9a... Support surface, DESCRIPTION OF SYMBOLS 100... Control device, 200... Console, 300... Storage part, 411... First lower rotation shaft, 412... First lower guide plate, 413... First lower drive unit, 41a... First lower guide surface, 421...Second lower rotation shaft, 422...Second lower guide plate, 423...Second lower drive section, 424...Lock section, 42a...Second lower guide surface, 511...First upper rotation shaft, 512...First upper step Guide plate, 513... First upper drive section, 51a... First upper guide surface, 521... Second upper rotation shaft, 522... Second upper guide plate, 523... Second upper drive section, 52a... Second upper guide surface , C...Center, CP...Encircling measurement point, LP...Level measurement point, TP...Temperature measurement point, DL1...First lower axis line, DL2...Second lower axis line, UL1...First upper axis line, UL2...Second upper axis line Axis line, β, γ, α1, α2... inclination angle.

Claims (11)

A cylindrical processing chamber extending vertically,
a temperature sensor that detects the temperature at a plurality of temperature measurement points regarding the temperature in the processing chamber;
a level sensor that detects the level at a plurality of level measurement points with respect to a level indicating the height of waste accumulation in the processing chamber;
A waste charging device comprising: The plurality of temperature measurement points are lined up 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,
The waste charging device according to claim 1. A control device that selects a supply target area for dropping waste from among the plurality of areas based on at least one of the detection result of the temperature sensor and the detection result of the level sensor in each of the plurality of areas in the processing chamber. The waste charging device according to claim 2, further comprising: The control device determines a determination level based on a level in one or more predetermined areas among the plurality of areas, and controls the processing based on the determination level being lower than a predetermined charging determination threshold. 4. The waste charging device of claim 3, further performing control for charging waste into the chamber. The control device determines a second determination level based on a level in one or more predetermined areas among the plurality of areas, and the control device determines a second determination level based on a level in one or more predetermined areas among the plurality of areas, and determines a predetermined upper device whose second determination level is higher than the charging determination threshold. 5. The waste charging device according to claim 4, wherein control for charging waste into the processing chamber is canceled based on the fact that the input determination threshold value is exceeded. The waste charging device according to claim 5, wherein the control device selects the area with the highest temperature among the plurality of areas as the supply target area. The waste charging device according to claim 5, wherein the control device selects the lowest level area among the plurality of areas as the supply target area. The control device includes:
Determining whether there is a first area whose temperature exceeds a predetermined temperature threshold among the plurality of areas;
If there is the first area, select the area with the highest temperature in the first area as the supply target area,
If the first area does not exist, selecting the second area of the lowest level among the plurality of areas as the supply target area;
The waste charging device according to claim 5. In the case where the first area is present, the control device cancels selection of the first area as the supply target area if the level in the first area exceeds a predetermined selection cancellation threshold. 9. The waste charging device according to claim 8. a lower guide part that is provided at the upper part of the processing chamber and adjusts the falling position of the waste sent into the processing chamber;
further comprising: an upper guide section that is provided above the lower guide section and adjusts a falling position of the waste sent to the lower guide section;
The lower guide part includes a lower guide plate having a lower guide surface that supports the waste to be sent into the processing chamber, and a lower guide plate that has a lower guide surface that supports the waste to be sent into the processing chamber, and a lower guide plate that has a lower guide surface by changing a rotation angle of the lower guide plate around a horizontal lower axis. a lower drive section that changes the inclination angle of the
The upper guide part includes an upper guide plate having an upper guide surface for adjusting the falling position of the waste to be sent to the lower guide part, and an upper guide plate having an upper guide surface that adjusts the falling position of the waste to be sent to the lower guide part, and an upper guide plate having an upper guide plate having an upper guide surface that adjusts the falling position of the waste to be sent to the lower guide part. an upper drive unit that changes the inclination angle of the upper guide surface by changing the rotation angle of the guide plate;
The control device is configured to control the upper guide section and the lower guide section based on the supply target area and a table that determines 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. control the guide,
A waste charging device according to any one of claims 6 to 9. The level sensor detects the position and level of each of the plurality of level measurement points,
The control device identifies a non-measurable 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;
The waste charging device according to claim 3.

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