JP2002219449A - Operation support system for industrial wastes disposal plant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support system for operating industrial wastes disposal plants with a long-term stability and planning. SOLUTION: While the receiving management section manages in real-time information of various indexes for the wastes brought into the plant, the optimal operation section figures and applies the optimal incineration conditions of a furnace based on information of the indexes made available to them by the former. The latter also sends the information on the optimal conditions to the overseeing section of incineration, 'feed-forward', receives the observed data from the overseeing section and reflects it to adjust for still better incineration conditions, 'feedback'. It is recommended to add another section that drafts an operation plan for the plant using the compiled indexes data, under which the entire plant is operated smoothly to incinerate the wastes daily brought in. With the concepts of feed-forward and feedback, this system offers the disposal plant a very efficient and stable operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support used in a treatment facility for treating industrial waste carried in various forms, such as a state packed in a drum or the like, a state stacked in a truck or the like. More particularly, the present invention relates to a support system that is applied to a treatment facility having an incinerator for incinerating industrial waste to enable smooth operation and operation.

[0002]

2. Description of the Related Art Generally, as an example of this type of waste treatment facility (hereinafter simply referred to as a treatment facility), a drum containing industrial waste is transported to an incinerator constituted by a rotary kiln or the like, and a drum can is provided. Waste in the incinerator,
Some types melt. There is also a treatment facility for incineration of industrial waste that is piled up in vehicles such as trucks in an incinerator. In any case, it is common for industrial waste to be brought into such a treatment facility without any prior separation. In this way, without being separated,
The types of industrial waste carried into the treatment facility are various and various, and the possible state is not limited to solid or liquid, but also includes a mixture of solid and liquid.

[0003] Therefore, such a treatment facility is provided with a pretreatment facility for analyzing the industrial waste in advance before incinerating the industrial waste, and the pretreatment facility carries the waste into the incinerator. Before sorting the waste in the drums,
Weighing. In addition, since post-incineration exhaust gas or wastewater pollution has a significant effect on the environment, post-treatment facilities for treating exhaust gas and the like generated by incineration are also provided.

[0004] It is extremely important to operate and operate the processing facility having the above configuration efficiently and smoothly. It is also important that such a facility can be operated stably for a long period of time without stopping due to a failure or the like.

[0005]

Conventionally, in a treatment facility for treating industrial waste carried in various forms, a pretreatment facility, an incinerator, and a post-treatment facility are individually controlled independently of each other. That is the fact. In other words,
No consideration is given to the relationship between the pretreatment and posttreatment results obtained in the pretreatment and posttreatment facilities and the combustion in the incinerator.

[0006] Further, in the conventional treatment facility, the incoming industrial waste is specified in real time, and
No consideration is given to the effects of mixing industrial waste. As a result, accidents such as intense wear of the incinerator or temporary stoppage due to too high an amount of calories burned in the incinerator tend to occur. For example, an explosion due to abnormal combustion and mixing of carried-in industrial waste may occur, which may cause damage to workers.

[0007] Further, in the treatment facility, the carried-in industrial waste is treated in accordance with the carry-in amount, so that there is a large variation in the treatment amount in the incinerator, and there is a disadvantage that the incinerator cannot be used efficiently. .

[0008] An object of the present invention is to provide an industrial waste treatment facility operation support system that can efficiently treat industrial waste.

Another object of the present invention is to provide an operation support system for an industrial waste treatment facility that can manage the operation of the entire treatment facility.

[0010] Still another object of the present invention is to provide an operation support system for an industrial waste treatment facility capable of performing optimal operation by keeping combustion in an incinerator optimal.

A specific object of the present invention is to provide an industrial waste treatment capable of performing work safely, preventing abnormal damage and failure of a treatment facility, and preventing the occurrence of secondary pollution. It is to provide a facility operation support system.

[0012]

According to one aspect of the present invention, a system for supporting the operation of a treatment facility for treating transported industrial waste analyzes the industrial waste and sets a predetermined value. An acceptance management unit that classifies based on the index and determines storage conditions according to the classification result;
According to the classification result, the appropriate treatment condition of the industrial waste is predictively determined, and an optimization processing unit that controls the treatment facility by feedforward control, and monitors an operation state in the treatment facility, An operation monitoring unit that feeds back an operation result representing an operation state to the optimization processing unit, wherein the optimization processing unit optimizes the processing condition with reference to the operation result. An industrial waste treatment facility operation support system is obtained.

[0013] According to another aspect of the present invention, after monitoring the receiving state from the monitor unit, the receiving management unit sets the predetermined index as an index in consideration of the safety of the industrial waste. By, to classify the industrial waste, a handling index determination unit for obtaining the classification result in real time,
An industrial waste treatment facility operation support system, comprising: a storage condition determining unit that determines the storage condition.

[0014] According to another aspect of the present invention, the treatment facility includes an incinerator for incinerating the industrial waste, and the optimizing treatment unit is configured to reduce an amount of the industrial waste charged into the incinerator. Pre-processing, comprising a pre-processing adjustment unit to adjust the calorific value, and, further comprising an operation plan formulation unit that formulates an operation plan using the adjustment result from the pre-processing adjustment unit, An industrial waste treatment facility operation support system can be obtained.

According to still another aspect of the present invention, the apparatus further comprises a failure diagnosis unit, wherein the failure diagnosis unit obtains an inspection result of the equipment constituting the processing facility, and uses the inspection result to determine a failure. An industrial waste treatment facility comprising a waste treatment section for preventing waste beforehand and further separating and treating waste resulting from the operation result into exhaust gas, wastewater, and solid matter. An operation support system is obtained.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an operation support system for an industrial waste treatment facility according to an embodiment of the present invention. Referring to FIG. 1, an industrial waste treatment facility operation support system according to the present invention is coupled to a pretreatment facility, an incinerator, and a post-treatment facility in a treatment facility (not shown), and controls these facilities and the incinerator. Used for

The illustrated industrial waste treatment facility operation support system is described as being applied to a treatment facility that carries industrial waste in a state packed in drums. The present invention can also be applied to a processing facility that is carried in the state described above.

First, when industrial waste is carried into the industrial waste treatment facility operation support system, the manifest management unit 11 and the monitor unit 12 provided in the pretreatment facility are activated. The monitor unit 12 includes an ITV camera,
The image processing data from the camera is taken in, and the weight data from the weighing device (track scale) is taken in. The illustrated monitor unit 12 monitors the delivery company, the delivery vehicle, and the package from the image processing data, and determines the size of the truck and the like from the weight data.

The manifest management unit 11 checks, analyzes, and determines a predetermined manifest management item with the carried-in manifest. More specifically, the management server 12 compares and manages the importers detected by the monitor unit 12 for each registered item, and outputs the management result as manifest data. In this case, the manifest management unit 11
Then, it may be configured such that whether or not the vehicle is a registered vehicle (for example, a truck) is checked, and if the vehicle is not registered, an instruction to refuse acceptance is issued to the manifest management unit 11. Also, as a manifest management item,
Properties of waste liquid, waste oil, waste acid, etc., bulk, drums, bags, cardboard, plastic containers, etc., and
The heavy metal content may also be controlled.

The management result in the manifest management unit 11 is given to the accounting processing unit 13 and the manifest creation unit 14. The illustrated manifest creation unit 14 creates various reports such as an industrial waste treatment result report, a manifest management report such as a treatment plan, and an annual report. On the other hand, the accounting processing unit 13
A slip registration and issuance processing unit that issues acceptance slips, issues invoices, and registers manifests, a sales accounting processing unit that performs cash deposit processing, accounts receivable processing, sales slip processing, etc., and a daily tabulation, monthly tabulation, and year A tally report issuing unit that issues tally and the like is provided.

The processing results of the above-described manifest management section 11, monitor section 12, manifest creation section 14, and accounting processing section 13 are stored in the computer 15 and also in the database 16 in the processing facility.

When the processing in the monitor section 12 is completed,
The process proceeds to the reception management unit 17. Here, FIG.
, The reception management unit 17 illustrated includes an analysis unit 171, a handling index determination unit 172, a storage condition determination unit 17
3 and a storage unit 174, and are provided in a pre-processing unit of the processing facility.

More specifically, the analysis unit 171
For example, in the case of industrial waste packed in drums, open the drum, sample the industrial waste that is the content, and perform manual or automatic analysis to determine the content type, properties, components, and heavy metal content. Data such as quantity, characteristics, packing style, and quantity are obtained as analysis results. The analysis result is sent to the above-described manifest management unit 11 and is also provided to the handling index determination unit 172 and the storage condition determination unit 173.

The handling index determining unit 172 executes a process for ensuring the safety of the contents based on the analysis result. In this example, the handling index determination unit 172 determines the toxicity, irritation,
Infectivity, volatility, flammability, flammability, explosion, mixing hazard, polymerization reactivity, corrosiveness, and odor are set as handling indicators.For example, there is a risk of explosion or mixing. In the case of contents, storage conditions are specified to avoid explosion and mixing of the contents. Storage condition determination unit 1
73 determines storage conditions based on the storage conditions determined by the handling index determination unit 172 and the analysis results from the analysis unit 171.

In the illustrated system, the storage conditions include charging into a pit, stocking in a yard, storing in an acid waste liquid tank, storing in an alkaline waste liquid tank, storing in a neutral waste liquid tank, In addition, storage conditions such as storage in a receiving container are set. The storage condition determining unit 173 selects, from the storage conditions described above, based on the analysis result of the contents and the handling index,
The storage condition suitable for the contents is determined, and the storage unit 174 is instructed.

The storage unit 174 transfers the contents to a storage location according to the specified storage conditions. Therefore, the storage unit 1
Reference numeral 74 includes, for example, a rack-type automatic warehouse-type transfer device, and also includes storage means according to the storage conditions. Further, the storage unit 174 includes a fully automatic pit and crane system for transferring waste stored from a storage location to a predetermined position. Further, data relating to the type, storage location, storage amount, and the like of the contents stored in the storage unit 174 are sent to the computer 18 and the optimization processing unit 20 illustrated in FIG.

As shown in FIG. 3, the optimization processing unit 20
Before injecting industrial waste into the incinerator, adjust the pre-treatment of the input waste, optimize the amount of waste, the input pattern, etc., and reduce the risk of explosion due to mixing etc. Is performed. For this reason, as shown in FIG. 3, the optimization processing unit 201 includes a pre-processing value requesting unit 201 that performs pre-processing of the waste conveyed from the storage unit 174 by the crane system, and an inventory amount in the storage unit 174. Is provided. Note that the inventory management unit 202 manages the inventory amount separately for waste liquid, waste oil, waste acid, waste alkali, sludge, waste plastic, and neutral waste liquid. Each inventory amount is fed back to the storage unit 174. I do.

On the other hand, the pre-processing adjusting unit 201 shown in FIG.
Adjusts the pH, heat, viscosity, and basicity of the waste conveyed from the storage unit 174, and performs oil-water separation processing, solid substance separation processing, and the like. In this case, recyclable waste may be separated.

The preprocessing result in the preprocessing adjusting unit 201 is sent to the operation plan formulating unit 22 shown in FIG.
The operation plan formulation unit 22 formulates an operation plan for the processing facility based on the manifest data from the manifest management unit and the preprocessing result. In this example, an acceptance processing plan is formulated with reference to the data of the storage management of received waste, safety measures, and the inventory management unit 202.
This is given to the manifest creation unit 14.

Returning to FIG. 3, the pre-processing adjustment unit 201 and the inventory management unit 202 send data on the pre-processing result and the inventory amount of each waste liquid to the appropriate mixing processing unit 203, respectively. The illustrated appropriate mixing processing unit 203 calculates an appropriate mixing ratio, a mixing amount, a PH, a calorific value, properties, and the like, and provides the calculation result to the combustion simulation unit 204. In the combustion simulation section 204, the appropriate mixing processing section 203
In response to the calculation result, a combustion simulation is performed, and the calorific value, combustion temperature, kiln temperature, steam chamber temperature, steam temperature, steam pressure, and steam amount in the incinerator are obtained. The input amount is set by the input amount setting unit 205.

In the input amount setting unit 205, for example, the input amount of drums, the input pattern, the input amount of solids, the input amount of crude oil,
The amount of waste liquid input and the like are set, and the combustion support unit 24 shown in FIG.
To supply. The combustion support unit 24 is provided adjacent to the incinerator and controls the operating state of the incinerator so that the calorific value becomes constant.

In order to monitor the operating state of the incinerator, an operation monitoring unit 26 is provided in the illustrated example. The illustrated operation monitoring unit 26 receives feedforward control by the optimization processing unit 20 as described later,
Feedback control is performed on the optimization processing unit 20. Further, the operation monitoring unit 26 constantly monitors various data in the operation state, appropriately operates the processing facility, collects various operation data, and manages usage data such as electricity, water, and chemicals. The waste discharged from the incinerator operated under the monitoring of the operation monitoring unit 26 is processed by the waste processing unit 28 as described later.

Further, the system shown in FIG. 1 is provided with a failure diagnosis unit 30 for managing the equipment used in the processing facility. The failure diagnosis unit 30 is used not only to perform failure diagnosis of various facilities constituting the processing facility, but also to make a plan for inspecting the facilities and a plan for preventing and maintaining the failures. By managing the processing facility in accordance with the inspection plan and the preventive maintenance plan created by the failure diagnosis unit 30, it is possible to take measures such as replacing equipment before a failure occurs, and prevent failure of equipment.

In the example shown in FIG.
The failure diagnosis unit 30 is connected to computers 31 and 32, respectively. These computers 31, 32
Are the other computers 15, 18 and the database 16
Together with an internal LAN, and is also connected to a remote monitoring system 37 via an ISDN line 35.
In this configuration, the operation status of the illustrated system is monitored by a remote monitoring system, and various indices and operation parameters can be adjusted remotely.

Referring to FIG. 4, the configurations of the operation monitoring unit 26 and the waste disposal unit 28 shown in FIG. 1 will be described in more detail. The incinerator of the system shown in FIG.
4 is operated under the combustion prediction control (that is, feedforward control), and the operation monitoring unit 26 is provided to monitor and control the actual operation state of the incinerator. The operation monitoring unit 26 in FIG. 4 includes an operation monitoring control unit 261 that monitors the operation state of the incinerator, a data extraction and accumulation unit 262, and a usage / parts management unit 263. The data extraction and accumulation unit 262 includes the combustion simulation unit 204 and the input amount setting unit 205 of the optimization processing unit 20.
(FIG. 3), and performs feedforward control and feedback control between the combustion simulation unit 204 and the input amount setting unit 205. Here, various parameters of the incinerator in the operating state are stored in the data extraction storage unit 262.

These parameters include the results of drum-to-drum charging, waste oil charging, waste liquid charging, slag melting temperature, kiln shell temperature, kiln rotation speed, secondary combustion chamber exit temperature, secondary combustion chamber exit oxygen, Boiler inlet dust amount, boiler outlet temperature, boiler outlet oxygen, boiler inlet HCl amount,
The steam temperature, steam pressure, steam amount, turbine speed, power generation amount, and the like are set. These parameters are stored in the data extraction and storage unit 262 by the feed-forward control from the combustion simulation unit 204 as simulation results, and are extracted as operating state parameters from the incinerator in the operating state.
62.

In the illustrated data extraction and accumulation unit 262,
The simulation result and the operating state parameter are compared to obtain a correlation correction value representing a correlation, and the result is fed back to the optimization processing unit 20. In this example, the correlation correction value is fed back to the input amount setting unit 205 to control the input amount to the incinerator.

As described above, in the illustrated system, the feed-forward control and the feedback control are performed between the adaptive processing unit 20 and the operation monitoring unit 26, whereby the operation based on the prediction of the incinerator is performed. It can be understood that the operation of the incinerator is controlled so as to be maintained in an optimal state by changing the parameter flexibly according to the actual parameter change.

The usage / parts management unit 263 shown in FIG.
In addition, while managing the amount of water used, it also manages inventory of spare parts and consumables, and manages delivery dates.

The monitoring result of the operation monitoring controller 261 is given to the waste disposal unit 28. The waste disposal unit 28
Effluents from incinerators are separated into exhaust gas, wastewater, and other waste (ash, slag), and the waste is treated appropriately. For this reason, the illustrated waste treatment unit 28 includes an exhaust gas treatment monitor unit 281, a wastewater treatment unit 283, and a waste treatment unit 284. Of these, the emission of exhaust gas is often regulated in the air. Therefore, the exhaust gas monitored by the exhaust gas processing monitor unit 281 is monitored by the exhaust gas monitoring unit 282, and processing is performed according to the exhaust gas. For example, in the exhaust gas monitoring unit 282, NOX,
It monitors SOX, HCl, CO, O2, mercury, dust, dioxin, leaked ammonia, etc., and feeds back the monitoring result to the data extraction storage unit 262 of the operation monitoring unit 26. As a result, each exhaust gas can be reduced to a specified value or less.

The wastewater treatment section 283 monitors the wastewater,
By monitoring H, TOC, and the like, it is determined whether or not the water can flow into the sewer. On the other hand, ash,
The slag and the like are classified and processed individually, the processing results are stored, and a slip or the like relating to the cost required for the processing is created.

The data and the like in each section described above are stored in computers 15, 18, 3 connected to each other by LAN.
1 and 32 to each computer 15, 18, 3
1 and 32 to the database 16 for storage. Also, the computers 15, 18, 31, and 32
Are connected to the remote management system 37 via the ISDN | According to this configuration, the remote management system 37 can monitor the overall operation status of the processing facility, transmit various indices, and adjust operation parameters and the like.

[0043]

As described above, the industrial waste treatment facility operation support system according to the present invention can reflect the treatment result in the pre-treatment or post-treatment so that the operation of the incinerator is optimized, As a result, there is an advantage that the processing from the transfer of the industrial waste to the discharge thereof can be centrally managed. In addition, since the amount of industrial waste to be treated and the cost required for the treatment can be managed, the cost required for operating the treatment facility can be predicted.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an overall configuration of an industrial waste treatment facility support system according to an embodiment of the present invention.

FIG. 2 is a block diagram for specifically explaining the configuration of an acceptance management unit shown in FIG.

FIG. 3 is a block diagram for more specifically explaining the configuration of an adaptation processing unit shown in FIG. 1;

FIG. 4 is a diagram for specifically explaining the configurations of an operation monitoring unit and a waste disposal unit in the system shown in FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 Manifest management part 12 Monitor part 13 Accounting processing part 14 Manifest creation part 16 Database 17 Acceptance management part 15, 18, 31, 32 Computer 20 Optimization processing part 22 Operation plan formulation part 24 Burning support part 26 Operation monitoring part 28 Waste treatment Unit 30 Failure diagnosis unit 37 Remote monitoring system

Claims (12)

[Claims] In a system for supporting the operation of a treatment facility for treating transported industrial waste, the industrial waste is analyzed, classified based on a predetermined index, and stored according to the classification result. An acceptance management unit that determines a condition, an optimization processing unit that predicts an appropriate treatment condition of the industrial waste in accordance with the classification result, and controls the treatment facility by feedforward control; and An operation monitoring unit that monitors an operation state in the facility and feeds back an operation result representing the operation state to the optimization processing unit, wherein the optimization processing unit also refers to the operation result and executes the processing condition. An industrial waste treatment facility operation support system characterized by optimizing 2. The operation support system for an industrial waste treatment facility according to claim 1, further comprising a monitor for monitoring the state of receiving the industrial waste when the industrial waste is received. . 3. The receiving management unit according to claim 2, wherein:
After monitoring the receiving state from the monitor unit, as the predetermined index, by the index considering the safety of the industrial waste, to classify the industrial waste, to obtain the classification result in real time An industrial waste treatment facility operation support system, comprising: a handling index determination unit; and a storage condition determination unit that determines the storage condition. 4. The operation support system for an industrial waste treatment facility according to claim 3, wherein the predetermined index includes toxicity, explosiveness, and danger of mixing of the industrial waste. . 5. The industrial waste treatment facility according to claim 1, further comprising a manifest management section for extracting manifest management data relating to the received industrial waste and creating a predetermined manifest management report. Operation support system. 6. The incinerator according to claim 1, wherein the treatment facility includes an incinerator for incinerating the industrial waste, and the optimization unit optimizes combustion in the incinerator. Industrial waste treatment facility operation support system. 7. The industrial apparatus according to claim 6, wherein the optimization processing unit includes a pretreatment adjustment unit that pretreats industrial waste put into the incinerator and adjusts a calorific value. Operation support system for waste treatment facilities. 8. The operation support system for an industrial waste treatment facility according to claim 7, further comprising an operation plan formulation unit that formulates an operation plan using the adjustment result from the pretreatment adjustment unit. . 9. The method according to claim 7, wherein the optimization processing unit includes an appropriate mixing processing unit that calculates an appropriate mixing ratio and a mixing amount with reference to the pretreatment result and the inventory of industrial waste. Characteristic industrial waste treatment facility operation support system. 10. The optimizing processing unit according to claim 9, further comprising a combustion simulation unit that performs a combustion simulation using the proper mixing ratio and the mixing amount calculated by the proper mixing processing unit. An industrial waste treatment facility operation support system, characterized in that: 11. The apparatus according to claim 1, further comprising a failure diagnosis unit, wherein the failure diagnosis unit obtains an inspection result of a device constituting the processing facility, and can prevent a failure using the inspection result. An industrial waste treatment facility operation support system characterized in that: 12. The industrial waste treatment facility according to claim 1, further comprising: a waste treatment section that separates and treats waste resulting from the operation result into exhaust gas, wastewater, and solid matter. Operation support system.