Method, system and program

Abstract

To provide a technique capable of more efficiently performing a neutralization treatment of exhaust gas by incineration of waste.SOLUTION: According to an aspect of the present invention, a method to be executed in relation to a neutralization treatment of exhaust gas that is generated by incinerating waste is provided. The method is provided with respective following steps. In an acquisition step, first information on an amount of waste, and second information on a concentration of a prescribed material contained in the exhaust gas are acquired. In a generation step, third information on neutralizer to be used in performing neutralization treatment of the exhaust gas is generated on the basis of the first information, the second information, and reference information.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a method, a system, and a program. [Background technology]

[0002] Patent Document 1 discloses a method for treating exhaust gas in a waste treatment facility, which can prevent excessive supply of chemicals and reduce running costs.

[0003] This exhaust gas treatment method detects the concentration of residual harmful substances in the exhaust gas generated from the combustion chamber after harmful substance removal treatment, and based on this detected value, feedback controls the amount of harmful substance removal chemicals to be added to the exhaust gas before harmful substance removal treatment, while detecting changes in the combustion air flow rate, which changes depending on the amount of combustion material supplied to the combustion chamber, and feedforward controls the amount of chemicals to be added to the exhaust gas based on this detected value. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 10-165752 Summary of the Invention [Problem to be solved by the invention]

[0005] However, there is still room for improvement in the functions of the above-mentioned known techniques.

[0006] In view of the above circumstances, the present invention provides a technology that can more efficiently neutralize exhaust gases resulting from the incineration of waste. [Means for solving the problem]

[0007] According to one aspect of the present invention, there is provided a method for neutralizing exhaust gas generated by incinerating waste. The method includes the following steps: In the acquisition step, first information on the amount of waste and second information on the concentration of a predetermined substance contained in the exhaust gas are acquired; and In the generation step, third information on a neutralizing agent to be used in neutralizing the exhaust gas is generated based on the first information, the second information, and reference information.

[0008] According to the present disclosure, when incinerating waste containing various substances, it is possible to generate information that enables the exhaust gas to be neutralized more efficiently. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a diagram showing the overall configuration of a system 100 related to a neutralization process according to an embodiment. [Figure 2] FIG. 2 is a block diagram showing the hardware configuration of a control device 4. [Figure 3] FIG. 2 is a block diagram showing the hardware configuration of a user terminal 6. [Figure 4] FIG. 1 is a functional block diagram illustrating functions of a system 100 related to a neutralization process according to one embodiment. [Figure 5] 1 is a flowchart showing an overview of a method carried out in connection with the neutralization treatment of exhaust gas EG. [Figure 6] FIG. 2 is an activity diagram showing a specific example of a method carried out in connection with the neutralization process of exhaust gas EG. [Figure 7] 10 is a graph showing an example of information previously acquired and information relating to correlations therebetween. [Figure 8] 10 is an activity diagram showing another specific example of a method carried out in connection with the neutralization treatment of exhaust gas EG. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Various features shown in the following embodiments can be combined with each other.

[0011] Incidentally, the program for realizing the software appearing in one embodiment may be provided as a non-transitory computer-readable medium, or may be provided so that it can be downloaded from an external server, or may be provided so that the program is started on an external computer and its functions are realized on a client terminal (so-called cloud computing).

[0012] Furthermore, various information processing according to an embodiment may realize input and output corresponding to the input. Here, the form of information referenced in such information processing (hereinafter referred to as reference information) is not limited as long as an output is obtained as a result of the input. The reference information may be, for example, rule-based information such as a database, a lookup table, or a predetermined function (including a decision formula such as a regression formula constructed using a statistical method), a trained model that has previously trained the correlation between input and output, or a large-scale language model that can output a desired result by inputting a prompt.

[0013] In one embodiment, a "unit" may include, for example, a combination of hardware resources implemented by a circuit in the broad sense and software information processing that can be specifically realized by these hardware resources. In one embodiment, various information is handled, and this information is represented, for example, by physical values ​​of signal values ​​representing voltage and current, high and low signal values ​​as a binary bit set consisting of 0 or 1, or quantum superposition (so-called quantum bits), and communication and calculations can be performed on a circuit in the broad sense.

[0014] Furthermore, a circuit in the broad sense is a circuit realized by at least an appropriate combination of a circuit, circuitry, processor, memory, etc. The processor may be a general-purpose processor or a dedicated circuit. That is, it includes an application specific integrated circuit (ASIC), a programmable logic device (e.g., a simple programmable logic device (SPLD), a complex programmable logic device (CPLD), and a field programmable gate array (FPGA)), etc.

[0015] 1. Hardware Configuration This section explains the hardware configuration.

[0016] 1.1 System 100 Associated with Neutralization Treatment FIG. 1 is a diagram showing the overall configuration of a system 100 related to neutralization treatment according to one embodiment. The system 100 related to neutralization treatment shown in FIG. 1 is a system used in a waste incineration facility that incinerates waste W. The waste incineration facility in this case is a municipal waste incineration facility that incinerates municipal waste, an industrial waste incineration facility that incinerates industrial waste, or the like. In a waste incineration facility, exhaust gas EG emitted by incineration is neutralized and then released to the outside. In other words, the system 100 related to neutralization treatment is a system related to the neutralization treatment of exhaust gas EG generated by incinerating waste W. Furthermore, the system 100 related to neutralization treatment is a system configured to be able to execute a method (hereinafter also referred to as "the method") carried out in connection with the neutralization treatment of exhaust gas EG generated by incinerating waste W.

[0017] In the neutralization treatment-related system 100 shown in FIG. 1, waste W carried into a waste supply device 11 is supplied to an incinerator 12 via a waste inlet path P1 and incinerated therein. Exhaust gas EG containing acidic gases generated by incinerating the waste W in the incinerator 12 passes through piping P2, a boiler 13 that utilizes the heat of the exhaust gas EG, and piping P3, where it is cooled in a gas cooling tower 14 and introduced into a dust collector 15 via a flue P4. A neutralizer NA is supplied from a neutralizer dosing device 32, and the exhaust gas EG containing acidic gases is mixed with the neutralizer NA along the flue P4. The neutralized exhaust gas EG is sucked out of the dust collector 15 by a suction fan 16 via a gas exhaust path P5 and released from a chimney 17 via a gas exhaust path P6.

[0018] Meanwhile, the collected fly ash is discharged from the dust collector 15 via a fly ash discharge path P7 into a storage silo 21, and the fly ash is extracted from the storage silo 21 by a fly ash supplying device 22 and supplied to a kneader 24 via a pipe P8. Just before the kneader 24, a heavy metal fixing agent is supplied to the fly ash from a precious metal fixing agent adding device 23, and the fly ash is then discharged into an ash pit 25.

[0019] 1 also includes a control device 4 and a user terminal 6, which are connected via a general-purpose or dedicated communication network 5. The neutralization-related system 100 comprises a dry treatment device including a weight measuring device 31 provided in the waste supply device 11, a neutralizing agent adding device 32 provided in the flue P4, a gas concentration measuring device 33 provided in the gas exhaust path P5, the control device 4, and the user terminal 6, in order to neutralize acid gases in the exhaust gas EG discharged from the incinerator 12. The weight measuring device 31, the neutralizing agent adding device 32, the gas concentration measuring device 33, the control device 4, and the user terminal 6 will be further described below.

[0020] The weight measuring device 31 is configured to measure the weight of the waste W when the waste W is supplied into the incinerator 12 by the waste supply device 11. Specifically, for example, the weight measuring device 31 is configured to measure the amount of waste W incinerated per unit time by continuously measuring the weight of the waste W.

[0021] The neutralizing agent supplying device 32 is configured to supply a neutralizing agent NA to the inside of the flue P4. With this configuration, the neutralizing agent supplying device 32 is configured to neutralize the flue gas EG flowing through the inside of the flue P4. In this case, the neutralizing agent NA is an alkaline neutralizing agent for neutralizing acidic gases. The neutralizing agent NA may contain at least one basic salt of an alkali metal or alkaline earth metal, such as slaked lime (calcium hydroxide), sodium hydroxide, potassium hydroxide, magnesium hydroxide, sodium bicarbonate, sodium carbonate, calcium carbonate, calcium oxide, dolomite hydroxide [Ca(OH)₂·Mg(OH)₂], semi-calcined dolomite [Ca(OH)₂·MgO], calcined dolomite [CaO₂·MgO], or a mixture thereof.

[0022] Furthermore, the neutralizing agent adding device 32 supplies the neutralizing agent NA into the inside of the flue P4 based on a control instruction transmitted from the control device 4. Specifically, for example, first, the neutralizing agent adding device 32 receives, as a control instruction, information on the amount of neutralizing agent NA to be supplied per unit time from the control device 4. Then, based on the received control instruction, the neutralizing agent adding device 32 supplies the neutralizing agent NA corresponding to the instructed amount into the inside of the flue P4.

[0023] The gas concentration measuring instrument 33 is configured to measure the concentration of a predetermined substance PS contained in the neutralized exhaust gas EG. In this case, the predetermined substance PS is, for example, hydrogen chloride, sulfur oxides, or the like. The gas concentration measuring instrument 33 may employ, as a sensor for measuring the concentration of hydrogen chloride, a sensor using, for example, an ion electrode method or a laser single absorption line absorption spectroscopy, and as a sensor for measuring the concentration of sulfur oxides, a sensor using, for example, a non-dispersive infrared absorption method or an ultraviolet fluorescence method. The gas concentration measuring instrument 33 may include one sensor or multiple sensors. In the case of multiple sensors, for example, a sensor for measuring the concentration of hydrogen chloride and a sensor for measuring the concentration of sulfur oxides may be employed.

[0024] The control device 4 is electrically connected to the weight measuring device 31, the neutralizing agent adding device 32, and the gas concentration measuring device 33, and is configured to perform information processing for incinerating the waste W and neutralizing the exhaust gas EG generated by the incineration.

[0025] 2 is a block diagram showing the hardware configuration of the control device 4. The control device 4 has a communication unit 41, a storage unit 42, and a control unit 43, and these components are electrically connected via a communication bus 40 inside the control device 4. Each component will be further described.

[0026] The communication unit 41 is preferably a wired communication means such as USB, IEEE1394, Thunderbolt (registered trademark), or wired LAN network communication, but may also include wireless LAN network communication, mobile communication such as 3G / LTE / 5G, Bluetooth (registered trademark), or the like, as needed. That is, it is more preferable to implement it as a collection of multiple communication means. That is, the control device 4 may communicate various information from the outside via the communication unit 41 and the communication network 5.

[0027] The memory unit 42 stores various pieces of information defined above. This can be implemented, for example, as a storage device such as a solid state drive (SSD) that stores various programs and the like related to the control device 4 executed by the control unit 43, or as a memory such as a random access memory (RAM) that stores temporarily required information (arguments, arrays, etc.) related to the program operations. The memory unit 42 stores various programs, variables, etc. related to the control device 4 executed by the control unit 43.

[0028] The control unit 43 processes and controls the overall operations related to the control device 4. The control unit 43 is, for example, a central processing unit (CPU) not shown. The control unit 43 realizes various functions related to the control device 4 by reading out predetermined programs stored in the memory unit 42. In other words, information processing by software stored in the memory unit 42 is specifically realized by the control unit 43, which is an example of hardware, and can be executed as each functional unit included in the control unit 43. This will be described in further detail in the next section. Note that the control unit 43 is not limited to being single, and multiple control units 43 may be provided for each function. A combination of these may also be used. In other words, the system 100 related to the neutralization process includes the control unit 43 as at least one processor. The control unit 43, which is a processor, is configured to execute a program so that each step of the present method is performed.

[0029] 1.3 User terminal 6 FIG. 3 is a block diagram showing the hardware configuration of the user terminal 6. The user terminal 6 is a terminal operated by a user. In this case, the user is a person who operates, maintains, manages, etc., a waste incineration facility such as a municipal solid waste incineration facility or an industrial waste incineration facility. The user terminal 6 may be in any form, such as a smartphone, tablet terminal, computer, or any other device that can access the control device 4 via a telecommunications line. Specifically, the user terminal 6 includes a communication unit 61, a storage unit 62, a control unit 63, a display unit 64, and an input unit 65, and these components are electrically connected via a communication bus 60 inside the user terminal 6. The description of the communication unit 61, the storage unit 62, and the control unit 63 is omitted here because they are the same as the description of each unit in the control device 4.

[0030] The display unit 64 may be, for example, included in the housing of the user terminal 6, or may be externally attached. The display unit 64 displays a graphical user interface (GUI) screen that can be operated by the user. This is preferably implemented by selectively using display devices such as a CRT display, a liquid crystal display, an organic EL display, and a plasma display depending on the type of user terminal 6.

[0031] The input unit 65 may be included in the housing of the user terminal 6, or may be externally attached. For example, the input unit 65 may be implemented as a touch panel integrated with the display unit 64. A touch panel allows the user to input tapping, swiping, and the like. Of course, a switch button, a mouse, a QWERTY keyboard, or the like may be used instead of a touch panel. That is, the input unit 65 accepts an operation input made by the user. The input is transferred as a command signal to the control unit 63 via the communication bus 60, and the control unit 63 can execute predetermined control or calculation as necessary.

[0032] 2. Functional configuration This section describes the functional configuration of one embodiment. As described above, information processing by software stored in the storage unit 42 is specifically realized by the control unit 43, which is an example of hardware, and each functional unit included in the control unit 43 can be executed.

[0033] 4 is a functional block diagram showing functions of the system 100 related to the neutralization process according to one embodiment. Specifically, the control device 4, which is an example of the system 100 related to the neutralization process, includes an acquisition unit 431, a calculation unit 432, a generation unit 433, a display control unit 434, and a progress control unit 435.

[0034] The acquisition unit 431 is configured to acquire various pieces of information as an acquisition step. For example, the acquisition unit 431 receives information obtained by a measuring instrument, information input by a user, etc. from the storage unit 42, or from the input unit 65 of the user terminal 6 or another device via the communication network 5. In addition, in one embodiment, the various pieces of information acquired by the acquisition unit 431 will be described as being stored in the storage unit 42. Details will be described later.

[0035] The calculation unit 432 is configured to execute various information processing calculations related to the control device 4. Details will be described later.

[0036] The generating unit 433 is configured to generate various pieces of information as a generating step, which will be described in detail later.

[0037] The display control unit 434 is configured to execute various display processes. For example, the display control unit 434 controls the display unit 64 of the user terminal 6 to display visually recognizable information such as screens, images including still images or moving images, icons, messages, etc. The display control unit 434 may generate only rendering information for displaying visually recognizable information on the display unit 64 of the user terminal 6. Details will be described later.

[0038] As a progress control step, the progress control unit 435 controls the progress of the processes related to the neutralization process based on various information, as will be described in detail later.

[0039] 3. Operation of System 100 Associated with Neutralization In this section, the method executed by the neutralization-related system 100 described above will be described with reference to the drawings. Note that the order of the steps in the method can be changed as appropriate, multiple steps can be performed simultaneously, or some steps can be omitted.

[0040] 3.1 Overview 5 is a flowchart showing an outline of a method carried out in connection with the neutralization treatment of the exhaust gas EG. In this method, the acquisition unit 431 first acquires first information IF1 (hereinafter simply referred to as "first information IF1") regarding the amount of waste W and second information IF2 (hereinafter simply referred to as "second information IF2") regarding the concentration of a predetermined substance PS contained in the exhaust gas EG (step S001). Then, the generation unit 433 generates third information IF3 (hereinafter simply referred to as "third information IF3") regarding a neutralizing agent NA used in the neutralization treatment of the exhaust gas EG based on the first information IF1, the second information IF2, and the reference information RI (step S002).

[0041] To summarize the above, the method according to one embodiment includes the following steps: In the acquisition step, the acquisition unit 431 acquires first information IF1 related to the amount of waste W and second information IF2 related to the concentration of a predetermined substance PS contained in the exhaust gas EG. In the generation step, the generation unit 433 generates third information IF3 related to a neutralizing agent NA used in neutralizing the exhaust gas EG, based on the first information IF1, the second information IF2, and the reference information RI. According to this aspect, when incinerating waste W containing various substances, it is possible to generate information that enables the exhaust gas EG to be neutralized more efficiently.

[0042] 3.2 Specific examples Next, a specific example of the present method according to one embodiment will be described. The specific example may fall within the scope defined in the overview above. FIG. 6 is an activity diagram showing a specific example of a method carried out in relation to the neutralization treatment of exhaust gas EG. Below, each step of the present method will be outlined in accordance with the activity diagram shown in FIG. 6. In addition, as an example, the following will explain a case where urban waste incineration facility (hereinafter simply referred to as "facility") incinerates urban waste (an example of waste W) collected from ordinary households in a certain area, and neutralizes the exhaust gas EG generated by the incineration.

[0043] First, the user sets the reference information RI using the user terminal 6 (activity A001). Specifically, for example, the user sets the reference information RI by operating the input unit 65 of the user terminal 6 to arbitrarily select from information stored in the storage unit 62 of the user terminal 6. The set reference information RI may be stored in the storage unit 62 of the user terminal 6, or may be stored in the storage unit 42 of the control device 4. When the reference information RI is stored in the storage unit 42, the reference information RI is transmitted from the storage unit 62 of the user terminal 6 to the control device 4 via the communication network 5 and stored in the storage unit 42. The reference information RI may be set in advance; for example, when already set reference information RI is used, setting of the reference information RI may be omitted.

[0044] In this case, the reference information RI is information that obtains the third information IF3 as a result of inputting arbitrary information. For example, the reference information RI may be rule-based information such as a database, a lookup table, or a predetermined function (including a determination formula such as a regression formula constructed by a statistical method), or may be a trained model that has previously trained the correlation between input and output. Furthermore, the reference information RI may be information defined according to the facility that incinerates municipal solid waste (an example of waste W). Specifically, for example, the reference information RI may be information based on information previously acquired at the municipal solid waste incineration facility. In this case, the previously acquired information may be, for example, first information IF1 regarding the amount of municipal solid waste, second information IF2 regarding the concentration of a predetermined substance PS contained in the flue gas EG, information regarding the amount of neutralizing agent NA, information indicating the relationship between the amount of municipal solid waste and the amount of neutralizing agent NA, etc. According to this aspect, by using the reference information RI set according to the facility that incinerates municipal solid waste, information that enables more efficient neutralization treatment of the flue gas EG can be generated.

[0045] Furthermore, the reference information RI may be information regarding the correlation of information previously acquired at the municipal solid waste incineration facility. Specifically, for example, the reference information RI may be information based on the correlation between information previously acquired at the municipal solid waste incineration facility indicating the relationship between the amount of municipal solid waste and the amount of neutralizing agent NA and the second information IF2. In other words, the reference information RI may be information regarding the correlation between the amount of waste W and the amount of neutralizing agent NA and the second information IF2. Furthermore, the reference information RI may be a trained model trained using the information regarding the relationship between the amount of municipal solid waste and the amount of neutralizing agent NA and the second information IF2 as training data. According to this aspect, by using information regarding the correlation of each piece of information as the reference information RI, it is possible to generate information that enables more efficient neutralization treatment of the flue gas EG. Furthermore, the second information IF2 used to obtain the reference information RI may be a statistical value S based on measured values ​​of the concentration of the predetermined substance PS as information regarding the concentration of the predetermined substance PS contained in the flue gas EG. According to this aspect, by using the statistical value S for the second information IF2, it is possible to generate information that enables more efficient neutralization of the exhaust gas EG. In this case, the statistical value S may be a standard deviation value or a value calculated using the standard deviation. Specifically, for example, the reference information RI may be information regarding the correlation between information indicating the relationship between the amount of municipal solid waste and the amount of neutralizing agent NA and information regarding the standard deviation value based on measured values ​​of the concentration of the predetermined substance PS. According to this aspect, by using the standard deviation value or a value calculated using the standard deviation for the statistical value S, it is possible to generate information that enables more efficient neutralization of the exhaust gas EG.

[0046] Furthermore, the reference information RI may be a regression line or curve defined based on a correlation. Specifically, for example, the reference information RI may be a regression line or curve defined based on the correlation between information indicating the relationship between the amount of municipal solid waste and the amount of neutralizing agent NA and the second information IF2. According to this embodiment, by using a regression line or curve defined based on the correlation between the respective pieces of information as the reference information RI, it is possible to generate information that enables more efficient neutralization treatment of the exhaust gas EG. Below, an example will be described in which the reference information RI is a regression line defined based on the correlation between information indicating the relationship between the amount of municipal solid waste and the amount of neutralizing agent NA and the second information IF2.

[0047] Next, a description will be given assuming a situation in which municipal waste is incinerated in a facility and exhaust gas EG generated by the incineration is released from a chimney 17.

[0048] First, the acquiring unit 431 acquires first information IF1 (activity A002). The first information IF1 is information about municipal solid waste to be incinerated, for example, information indicating the amount of municipal solid waste (an example of waste W) incinerated per unit time. Specifically, for example, the acquiring unit 431 acquires information measured by the weight measuring device 31 as the first information IF1. In this case, the acquired first information IF1 is, for example, information indicating the amount of municipal solid waste incinerated in the incinerator 12 in terms of weight per unit time as the amount of municipal solid waste incinerated per unit time. According to this aspect, by using the amount of municipal solid waste incinerated per unit time as the first information IF1, it is possible to generate the third information IF3 as more useful information. Below, an example will be described in which the first information IF1 is information about the amount of municipal solid waste incinerated per unit time.

[0049] The acquisition unit 431 also acquires second information IF2 (activity A003). The second information IF2 is information related to the exhaust gas EG, including, for example, information related to the concentration of a predetermined substance PS contained in the exhaust gas EG after neutralization. Specifically, for example, the acquisition unit 431 acquires information measured by the gas concentration measuring instrument 33 as the second information IF2. The acquired second information IF2 in this case is, for example, information related to the concentration of at least one substance selected from hydrogen chloride and sulfur oxides contained in the exhaust gas EG after neutralization. In other words, the predetermined substance PS is at least one substance selected from hydrogen chloride and sulfur oxides. According to this embodiment, by setting at least one substance selected from hydrogen chloride and sulfur oxides as the predetermined substance PS, the third information IF3 can be generated as more useful information.

[0050] Furthermore, since the flue gas EG after neutralization has been cooled by the gas cooling tower 14 and dust collected by the dust collector 15, the flue gas EG is in a state in which information about the concentration of the predetermined substance PS can be more easily obtained than the flue gas EG before neutralization. In other words, the information measured by the gas concentration measuring instrument 33 is information obtained by measuring a portion of the flue gas EG that is in a more easily measurable state. According to this embodiment, by using information obtained by measuring the flue gas EG in a more easily measurable state as the second information IF2, maintenance of the gas concentration measuring instrument 33 can be simplified, and a simpler gas concentration measuring instrument 33 can be used in less severe operating environments, such as those in which a low heat resistance temperature is acceptable. Furthermore, by obtaining information obtained by measuring the flue gas EG in a more easily measurable state as the second information IF2, the third information IF3 can be generated more efficiently. Below, an example will be described in which the second information IF2 is information about the concentration of hydrogen chloride contained in the neutralized flue gas EG.

[0051] Next, the calculation unit 432 performs calculation based on the acquired first information IF1 and second information IF2 and the set reference information RI (activity A004), and the generation unit 433 generates third information IF3 based on the calculation result (activity A005). Specifically, for example, the calculation unit 432 performs calculation based on the following information. First, information on the amount of municipal solid waste incinerated per unit time is used as the first information IF1. Information on the concentration of hydrogen chloride contained in the neutralized flue gas EG is used as the second information IF2. Furthermore, a regression line defined based on the correlation between information indicating the relationship between the amount of municipal solid waste and the amount of neutralizing agent NA and the second information IF2 is used as the reference information RI. Then, the generation unit 433 generates third information IF3 based on the calculation result using the above information. In this case, the third information IF3 is information regarding the neutralizing agent NA to be used when neutralizing the exhaust gas EG, such as information regarding the amount of neutralizing agent NA to be used per unit time, information regarding the type of neutralizing agent NA to be used, information regarding the supply location of the neutralizing agent NA to be used, etc. In other words, the third information IF3 includes information regarding the amount of neutralizing agent NA to be used relative to the amount of municipal solid waste (an example of waste W) to be incinerated. According to this aspect, it is possible to generate information regarding the amount of neutralizing agent NA to be used relative to the amount of municipal solid waste to be incinerated as the third information IF3. Below, an example will be described in which the third information IF3 is information regarding the amount of neutralizing agent NA to be used per unit time as the information regarding the neutralizing agent NA.

[0052] Furthermore, the progress control unit 435 controls the progress of the neutralization process based on the third information IF3 generated in the step of activity A005 (activity A006). Specifically, for example, the progress control unit 435 controls the progress of the neutralization process by sending a control instruction to the neutralizing agent adding device 32 based on the information on the amount of neutralizing agent NA to be used per unit time, which is the third information IF3. As a result, the neutralizing agent adding device 32 supplies the neutralizing agent NA into the flue P4 based on the control instruction. According to this embodiment, when incinerating waste containing various substances, the progress of the neutralization process can be controlled so as to more efficiently neutralize the exhaust gas EG.

[0053] If the incineration has finished after activity A006, the process ends. Alternatively, if the incineration of municipal waste is still ongoing, the process returns to activity A002 and activities A002 to A006 are repeated, thereby continuing the process.

[0054] Furthermore, if the process continues, the acquisition unit 431 acquires the first information IF1 and the second information IF2 corresponding to the frequency at which the process is repeated (activities A002 and A003). In this case, the acquisition unit 431 may acquire the first information IF1 and the second information IF2 at their respective frequencies. Specifically, for example, the acquisition unit 431 may acquire the first information IF1 at a frequency corresponding to a predetermined sampling frequency of the weight measuring instrument 31, and may acquire the second information IF2 at a frequency corresponding to a predetermined sampling frequency of the gas concentration measuring instrument 33. In other words, the acquisition unit 431 acquires the first information IF1 and the second information IF2 at a predetermined frequency during the incineration of municipal solid waste (an example of waste W). In this case, the generation unit 433 generates the third information IF3 at a frequency corresponding to the predetermined frequency. In this case, the predetermined sampling frequency is a sampling frequency that is appropriately set in consideration of the required measurement accuracy and the allowable data size, and may be, for example, 1 to 1000 Hz, preferably 10 to 500 Hz, and more preferably 100 to 200 Hz. Specifically, for example, 1, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300, 320, 340, 360, 380, 400, 420, 440, 460, The predetermined frequency may be 480, 500, 520, 540, 560, 580, 600, 620, 640, 660, 680, 700, 720, 740, 760, 780, 800, 820, 840, 860, 880, 900, 920, 940, 960, 980, or 1000 Hz, or may be within a range between any two of the values ​​exemplified here. The predetermined frequency may be the same as or lower than the predetermined sampling rate. If the predetermined frequency is lower than the predetermined sampling rate, the first information IF1 and the second information IF2 may be averaged values ​​of measurements obtained at the predetermined sampling rate. According to this embodiment, during the incineration of municipal solid waste, the first information IF1 and the second information IF2 are each acquired at a predetermined frequency, thereby generating the third information IF3 at a frequency corresponding to the predetermined frequency.

[0055] The above are the steps of the method according to the specific example.

[0056] 4. Reference Information RI Details In this section, we will explain the details of the reference information RI outlined in the previous section using a separate diagram.

[0057] FIG. 7 is a graph showing an example of information previously acquired and information relating to the correlation therebetween.

[0058] First, the previously acquired information shown in Figure 7 is information based on information showing the relationship between the amount of municipal solid waste and the amount of neutralizing agent NA, and information on the value of standard deviation based on the measured values ​​of the concentration of the predetermined substance PS. Specifically, for example, the previously acquired information is shown on a graph in which the information showing the relationship between the amount of municipal solid waste and the amount of neutralizing agent NA for a predetermined period and the information on the value of standard deviation based on the measured values ​​of the concentration of the predetermined substance PS are plotted together. Furthermore, the graph contains a predetermined number of plots.

[0059] In this case, the information for a predetermined period may be a time corresponding to the frequency at which the information can be obtained, and may be, for example, information per minute, information per hour, or information per operating time of the equipment (e.g., information per day, information per week, etc.). Specifically, for example, the information for a predetermined period may be information per 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, or 60 minutes, information per 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 22, or 24 hours, or information per 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, or 14 operating days, or may be within a range between any two of the values ​​exemplified here.

[0060] Furthermore, the predetermined number of plots is a number that allows information regarding correlation having any degree of correlation to be calculated, and may be, for example, 10 to 400, preferably 50 to 300, and more preferably 100 to 200. Specifically, for example, the number is 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, or 400, or may be within a range between any two of the numbers exemplified here.

[0061] 7 is data for the past 26 days. Data for each day is plotted on the graph.

[0062] The information showing the relationship between the amount of municipal solid waste and the amount of neutralizer NA shown in Figure 7 is data obtained by dividing the amount of neutralizer NA used in a given day [kg / day] by the amount of household solid waste incinerated [tons / day]. The information showing the relationship between the amount of municipal solid waste and the amount of neutralizer NA is shown on the vertical axis of the graph shown in Figure 7 as the unit usage amount of neutralizer NA [kg / ton].

[0063] 7 is data obtained by calculating the standard deviation using measurements of the concentration of the predetermined substance PS continuously measured over a certain day. The measurement value may be, for example, the average of 60 values ​​measured at a sampling frequency of 1 Hz by the gas concentration measuring instrument 33, i.e., the average value per minute. Furthermore, in the graph shown in FIG. 7, the information on the standard deviation value based on the measurements of the concentration of the predetermined substance PS is shown on the horizontal axis as the standard deviation [ppm] based on the measurements of the hydrogen chloride concentration.

[0064] 7 also shows a regression line as a correlation equation calculated from previously acquired information (26 plots). The calculated regression line is defined as follows:

number

[0065] The reference information RI is then defined based on the regression line. According to this embodiment, by using the regression line or curve defined based on the correlation of each piece of information as the reference information RI, it is possible to generate information that enables more efficient neutralization treatment of the exhaust gas EG.

[0066] [others] The system 100 relating to the neutralization process according to the above embodiment may be configured as follows.

[0067] In the above embodiment, the progress control unit 435 controls the progress of the neutralization process based on the third information IF3 generated in the step of activity A005 in the activity diagram of Fig. 6, but this is not limiting. Another example will be described below with reference to Fig. 8.

[0068] Fig. 8 is an activity diagram showing another specific example of a method carried out in relation to the neutralization treatment of exhaust gas EG. Activities A001 to A004 in the activity diagram shown in Fig. 8 are similar to activities A001 to A004 in the activity diagram shown in Fig. 6, and therefore description thereof will be omitted.

[0069] Based on the result of the calculation in activity A004, the generation unit 433 generates information on the neutralizing agent NA to be used when neutralizing the exhaust gas EG (activity A105). Specifically, for example, the generation unit 433 generates information on the amount of the neutralizing agent NA to be used per unit time, information on the type of the neutralizing agent NA to be used, information on the supply position of the neutralizing agent NA to be used, etc., as information on the neutralizing agent NA to be used when neutralizing the exhaust gas EG.

[0070] The acquisition unit 431 also acquires information indicating the amount of neutralizing agent NA used to neutralize the exhaust gas EG (activity A106). Specifically, for example, the acquisition unit 431 acquires information on the amount of neutralizing agent NA supplied per unit time into the flue P4 in the neutralizing agent adding device 32.

[0071] The calculation unit 432 then calculates the appropriateness of the amount of neutralizer NA used to neutralize the exhaust gas EG (activity A107), and the generation unit 433 generates third information IF3 based on the calculation result (activity A108). Specifically, for example, the calculation unit 432 calculates the appropriateness of the amount of neutralizer NA used to neutralize the exhaust gas EG based on the information on the amount of neutralizer NA to be used per unit time generated in activity A105 and the information on the amount of neutralizer NA supplied per unit time acquired in activity A106. The generation unit 433 then generates third information IF3 based on the calculation result. That is, the third information IF3 includes information indicating the appropriateness of the amount of neutralizer NA used to neutralize the exhaust gas EG. The information indicating the appropriateness in this case may be information indicating appropriateness or inappropriateness, information indicating the degree of inappropriateness, etc. The information indicating the degree of inappropriateness is, for example, information indicated by the amount of deviation, the percentage value of the amount, or a level classification based on an arbitrary standard when the amount of neutralizer NA used per unit time is greater than the amount of neutralizer NA that should be used per unit time. According to this embodiment, information indicating the appropriateness of the amount of neutralizer NA used to neutralize the exhaust gas EG can be generated. In other words, it can indicate that there is room for optimization of the control conditions, i.e., improvement in the amount of neutralizer NA used.

[0072] Then, the display control unit 434 causes the generated third information IF3 to be displayed on the display unit 64 of the user terminal 6 (activity A109).

[0073] In another example shown in Figure 8, the steps of this method may be performed during the incineration of municipal solid waste, or after the incineration of municipal solid waste is completed. When the steps of this method are performed after the incineration of municipal solid waste is completed, previously acquired first information IF1, second information IF2, information indicating the amount of neutralizing agent NA used to neutralize the exhaust gas EG, etc. are used.

[0074] These are the steps of the method according to another embodiment shown in FIG.

[0075] In the above embodiment, an example was described in which information is acquired in the order of first information IF1 and second information IF2 based on the process proceeding in the order of activities A002 and A003 in the activity diagram of Figure 6, but this is not limited to this, and information may be acquired in the order of second information IF2 and first information IF1, or first information IF1 and second information IF2 may be acquired together.

[0076] In the above embodiment, the reference information RI is described as information based on information previously acquired in a municipal solid waste incineration facility, but this is not limited to this. For example, the reference information RI may be information based on information previously acquired in another facility having approximately the same configuration as the facility, or information obtained through a simulation equivalent to the information acquired in the facility.

[0077] The above-described embodiment may be implemented as a distributable program. That is, this program causes at least one computer to execute each step of the method. According to this aspect, when waste W containing various substances is incinerated, information that enables more efficient neutralization of the exhaust gas EG can be generated. Furthermore, the system 100 related to the neutralization process may be an information processing system. That is, the information processing system includes at least one processor, and the processor is configured to execute a program so that each step of the information processing method is performed. In this case, the method may be executed as an information processing method. According to this aspect, when waste W containing various substances is incinerated, information that enables more efficient neutralization of the exhaust gas EG can be generated.

[0078] In the above embodiment, the system 100 related to the neutralization process includes the control device 4 and the user terminal 6. However, for example, the system 100 related to the neutralization process may not include the user terminal 6. In this case, the steps of the method are performed by the control device 4 alone. Also, in the above embodiment, the acquisition unit 431, the calculation unit 432, the generation unit 433, the display control unit 434, and the progress control unit 435 are described as functional units realized by the control unit 43 of the control device 4. However, they may also be implemented as functional units realized by the control unit 63 of the user terminal 6. In this case, the method may be performed by the user terminal 6 alone without constantly communicating with the equipment. Specifically, for example, the user terminal 6 may perform the steps of the method based on information previously stored in the storage unit 62, information acquired from an external device such as a storage medium electrically connected to the user terminal 6, etc. Furthermore, the various pieces of information described in the above example may be stored not only in the storage unit 42 of the control device 4 but also in a distributed manner in other external devices.

[0079] Furthermore, it may be provided in the following aspects.

[0080] (1) A method carried out in connection with the neutralization treatment of exhaust gas generated by incinerating waste, comprising the following steps: in the acquisition step, first information regarding the amount of the waste and second information regarding the concentration of a predetermined substance contained in the exhaust gas are acquired; and in the generation step, third information regarding a neutralizing agent to be used in neutralizing the exhaust gas is generated based on the first information, the second information, and reference information.

[0081] According to this aspect, when waste containing various substances is incinerated, it is possible to generate information that enables the exhaust gas to be neutralized more efficiently.

[0082] (2) The method according to (1) above, wherein the reference information is information specified according to the facility that incinerates the waste.

[0083] According to this aspect, by using reference information set in accordance with the waste incineration facility, it is possible to generate information that enables more efficient neutralization treatment of exhaust gas.

[0084] (3) In the method described in (1) or (2) above, the reference information is information regarding the correlation between information indicating the relationship between the amount of the waste and the amount of the neutralizing agent and the second information.

[0085] According to this aspect, by using information relating to the correlation of each piece of information as reference information, it is possible to generate information that enables more efficient neutralization treatment of exhaust gas.

[0086] (4) The method according to (3) above, wherein the reference information is a regression line or curve defined based on the correlation.

[0087] According to this aspect, by using a regression line or curve defined based on the correlation between each piece of information as reference information, it is possible to generate information that enables more efficient neutralization treatment of exhaust gas.

[0088] (5) The method according to any one of (1) to (4) above, wherein the second information is a statistical value based on the measured value of the concentration of the predetermined substance.

[0089] According to this aspect, by using statistical values ​​as the second information, it is possible to generate information that enables more efficient neutralization treatment of exhaust gas.

[0090] (6) The method according to (5) above, wherein the statistical value is a standard deviation value or a value calculated using the standard deviation.

[0091] According to this aspect, by using the value of the standard deviation or a value calculated using the standard deviation as a statistical value, it is possible to generate information that enables more efficient neutralization treatment of exhaust gas.

[0092] (7) A method according to any one of (1) to (6) above, wherein the third information includes information regarding the amount of the neutralizing agent to be used relative to the amount of the waste to be incinerated.

[0093] According to this aspect, it is possible to generate, as the third information, information relating to the amount of neutralizing agent to be used relative to the amount of waste to be incinerated.

[0094] (8) A method according to any one of (1) to (7) above, wherein the acquisition step further acquires information indicating the amount of the neutralizing agent used to neutralize the exhaust gas, and the third information includes information indicating the validity of the amount of the neutralizing agent used to neutralize the exhaust gas.

[0095] According to this aspect, it is possible to generate information indicating the appropriateness of the amount of neutralizing agent used to neutralize the exhaust gas.

[0096] (9) A method according to any one of (1) to (8) above, wherein in the acquisition step, the first information and the second information are acquired at a predetermined frequency during the incineration of the waste, and in the generation step, the third information is generated at a frequency corresponding to the predetermined frequency.

[0097] According to this aspect, during the incineration of waste, the first information and the second information are each obtained at a predetermined frequency, and the third information can be generated at a frequency corresponding to the predetermined frequency.

[0098] (10) The method according to any one of (1) to (9) above, wherein the second information includes information about the concentration of the predetermined substance contained in the exhaust gas after the neutralization treatment.

[0099] According to this embodiment, the second information is obtained from the exhaust gas after the neutralization treatment, so that the third information can be generated more efficiently.

[0100] (11) The method according to any one of (1) to (10) above, wherein the predetermined substance is at least one substance selected from the group consisting of hydrogen chloride and sulfur oxides.

[0101] According to this embodiment, by using at least one substance of hydrogen chloride and sulfur oxide as the predetermined substance, it is possible to generate the third information as more useful information.

[0102] (12) The method according to any one of (1) to (11) above, wherein the first information is information indicating the amount of the waste incinerated per unit time.

[0103] According to this aspect, by using the amount of waste incinerated per unit time as the first information, it is possible to generate the third information as more useful information.

[0104] (13) The method according to any one of (1) to (12) above, further comprising, in the progress control step, controlling the progress of the neutralization treatment based on the third information.

[0105] According to this embodiment, when incinerating waste containing various substances, the progress of the neutralization treatment can be controlled so as to more efficiently neutralize the exhaust gas.

[0106] (14) A system relating to the neutralization treatment of exhaust gas generated by incinerating waste, comprising at least one processor, the processor being configured to execute a program so as to perform each step of the method described in any one of (1) to (13) above.

[0107] According to this aspect, when waste containing various substances is incinerated, it is possible to generate information that enables the exhaust gas to be neutralized more efficiently.

[0108] (15) A program that causes at least one computer to execute each step of the method described in any one of (1) to (13) above.

[0109] According to this aspect, when waste containing various substances is incinerated, it is possible to generate information that enables the exhaust gas to be neutralized more efficiently. Of course, this is not the case.

[0110] Finally, while various embodiments of the present invention have been described, these are presented by way of example only and are not intended to limit the scope of the invention. The novel embodiments may be embodied in various other forms, and various omissions, substitutions, and modifications may be made without departing from the spirit of the invention. Such embodiments and modifications are intended to be included within the scope and spirit of the invention, as well as within the scope of the inventions and their equivalents as defined in the accompanying claims. [Explanation of symbols]

[0111] 100: Systems related to neutralization treatment 11: Waste supply device 12: Incinerator 13: Boiler 14: Gas cooling tower 15: Dust collector 16: Suction fan 17: Chimney 21: Storage silo 22: Fly ash supply device 23: Precious metal fixing agent adding device 24: Kneading machine 25: Ash pit 31: Weight measuring device 32: Neutralizer adding device 33: Gas concentration measuring instrument 4: Control device 40: Communication bus 41: Communications Department 42: Storage section 43: Control section 431: Acquisition Department 432: Arithmetic section 433 :Generation part 434: Display control unit 435: Progress control section 5: Communication network 6: User terminal 60: Communication bus 61: Communications Department 62: Storage section 63: Control section 64:Display section 65: Input section EG: Exhaust gas IF1: First information IF2: Second information IF3: Third information NA: Neutralizer P1: Waste transport route P2: Piping P3: Piping P4: Flue P5: Gas exhaust channel P6: Gas exhaust channel P7: Fly ash discharge route P8:Piping PS: Specified substances RI: Reference Intelligence S: Statistical Value W: discarded items

Claims

1. A method carried out in a process of neutralizing exhaust gas generated by incinerating waste, comprising: It includes the following steps: In the acquisition step, first information on the amount of the waste and second information on the concentration of a predetermined substance contained in the exhaust gas are acquired, wherein the first information is information indicating the amount of the waste incinerated per unit time; In the generation step, third information regarding a neutralizing agent used in neutralizing the exhaust gas is generated based on the first information, the second information, and reference information, wherein: the reference information is information relating to a correlation between information indicating a relationship between the amount of the waste and the amount of the neutralizing agent and the second information; the third information includes information regarding the amount of the neutralizing agent to be used relative to the amount of the waste to be incinerated; The method, wherein the reference information is a regression line or curve defined based on the correlation.

2. 10. The method of claim 1, A method in which the reference information is information specified depending on a facility that incinerates the waste.

3. 10. The method of claim 1, The method, wherein the second information is a statistical value based on a measurement of the concentration of the predetermined substance.

4. 4. The method of claim 3, The method, wherein the statistical value is a standard deviation value or a value calculated using the standard deviation.

5. 10. The method of claim 1, In the obtaining step, information indicating an amount of the neutralizing agent used in neutralizing the exhaust gas is further obtained, The method, wherein the third information includes information indicating the appropriateness of the amount of neutralizing agent used to neutralize the exhaust gas, and wherein the information indicating the appropriateness is information indicated based on the difference between the amount of neutralizing agent used per unit time and the amount of neutralizing agent that should be used per unit time, and an arbitrary criterion.

6. 10. The method of claim 1, In the acquisition step, the first information and the second information are acquired at a predetermined frequency during the incineration of the waste, The method, wherein the generating step generates the third information at a frequency corresponding to the predetermined frequency.

7. 10. The method of claim 1, The method, wherein the second information includes information regarding the concentration of the predetermined substance contained in the exhaust gas after the neutralization treatment.

8. 10. The method of claim 1, The method, wherein the predetermined substance is at least one of hydrogen chloride and sulfur oxides.

9. 10. The method of claim 1, Furthermore, in the progress control step, the progress of the neutralization process is controlled based on the third information.

10. A system related to the neutralization of exhaust gas generated by incinerating waste, A system comprising at least one processor, the processor configured to execute a program so as to perform the steps of the method according to any one of claims 1 to 9.

11. A program, A program causing at least one computer to execute each step of the method according to any one of claims 1 to 9.

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