CN109954742B - Fly ash management method and system - Google Patents
Fly ash management method and system Download PDFInfo
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- CN109954742B CN109954742B CN201711337428.5A CN201711337428A CN109954742B CN 109954742 B CN109954742 B CN 109954742B CN 201711337428 A CN201711337428 A CN 201711337428A CN 109954742 B CN109954742 B CN 109954742B
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- 239000010881 fly ash Substances 0.000 title claims abstract description 391
- 238000007726 management method Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 35
- 230000006641 stabilisation Effects 0.000 claims abstract description 34
- 238000011105 stabilization Methods 0.000 claims abstract description 34
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- 238000012545 processing Methods 0.000 claims description 29
- 230000000087 stabilizing effect Effects 0.000 claims description 20
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- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Refuse Collection And Transfer (AREA)
Abstract
The invention provides a fly ash management method and a system, wherein the management method comprises the following steps: collecting the fly ash after the stabilization treatment; wherein, the fly ash is loaded into a plurality of fly ash collecting containers; generating encoded information for a fly ash collection container filled with fly ash; the encoded information represents management attributes of the fly ash; each fly ash collection container has unique coded information; storing the fly ash collecting container at a storage position corresponding to the coding information according to the coding information of the fly ash; extracting a fly ash sample from each storage location; detecting the extracted fly ash sample to obtain a detection result of the fly ash sample, judging whether the detection result meets the landfill standard, and if so, burying the fly ash meeting the landfill standard; if not, the fly ash which does not reach the landfill standard is reprocessed. The invention realizes the whole process of fly ash collection and transportation without leakage, avoids the harm to the surrounding environment, reduces the corrosion to the fly ash transport vehicle, and meets the management requirement of landfill after each batch of fly ash detection reaches the standard.
Description
Technical Field
The invention belongs to the technical field of fly ash treatment in environmental engineering, relates to a management method and a management system, and particularly relates to a fly ash management method and a fly ash management system.
Background
In recent years, the use of waste incineration technology is becoming more and more widespread in China. The fly ash generated in the incineration process contains substances such as dioxin, heavy metals and the like, and is classified as hazardous waste. The fly ash disposal method is mainly characterized in that a cement solidification method or a chemical agent method and other methods are adopted for stabilization pretreatment, and then the fly ash is sent to a fly ash landfill site for landfill. At present, the most common method for directly transporting fly ash to a landfill site for landfill after stabilizing fly ash by chemical agents is used, and the operation steps are as follows: the closed carriage transport vehicle is parked at a feed opening of the fly ash stabilizing system; directly transporting the treated fly ash in bulk to a landfill after waiting for the carriage to be full of the treated fly ash; and the treated fly ash is dumped into a landfill site by utilizing the automatic unloading function of the transport vehicle.
The existing collection and transportation mode of the fly ash after stabilization treatment mainly has the following problems and disadvantages: 1. the fly ash after the stabilization treatment directly falls into a carriage in a collection link, so that the situation that the fly ash is piled up too high or is unevenly scattered on the ground to cause pollution of a fly ash stabilization workshop and influence on the health of workers is avoided. 2. The closed carriage also has a sprinkling phenomenon in the transportation process, so that the urban environment is harmed and influenced. 3. The transport vehicle can generate dust in the process of dumping the fly ash, and the influence on workers and the surrounding environment is caused. 4. The stabilized fly ash can be adhered to the inner wall of the closed carriage, so that the carriage is corroded, the service life of the transport vehicle is greatly influenced, and the maintenance cost of the transport vehicle is increased. 5. The method for transporting the fly ash by using the closed carriage cannot ensure that each batch of fly ash is buried after reaching the landfill standard because the carriage has no temporary storage function. Once the unqualified fly ash enters the landfill, the re-excavation treatment is very complicated, and the superposition pollution is also caused to facilities such as the landfill, percolate and the like.
The fly ash belongs to dangerous waste, after stabilization treatment, two landfill treatment standards exist, and each incineration plant can select one of the two treatment standards according to the conditions of management fixing and supporting facilities of a city where a project is located. First, the stabilized fly ash is directly introduced into a hazardous waste landfill (also called "safety landfill") for landfill, and the implemented standard is "hazardous waste landfill pollution control standard" (GB 18598-2001), as shown in Table 1. The standard requires: waste leachate having one or more concentrations of hazardous components in excess of the standard values of GB5085.3 and below the permitted access control limits for landfill as set out in Table 1 as measured according to GB5086 and GB/T15555.1-11 may be disposed of directly into a hazardous waste landfill. In the fly ash stabilization process, if the fly ash of a certain incineration plant must enter a hazardous waste landfill for landfill according to the environmental approval or related requirements, the stabilized fly ash must satisfy the requirements of table 1.
Table 1: control limits for hazardous waste admission to landfill
| Serial number | Contaminant item | Stabilization control Limit (mg/L) |
| 1 | Organic mercury | 0.001 |
| 2 | Mercury machine compounds | 0.25 |
| 3 | Lead (in terms of total lead) | 5 |
| 4 | Cadmium (in terms of total cadmium) | 0.50 |
| 5 | |
12 |
| 6 | Hexavalent chromium | 2.5 |
| 7 | Copper and its compounds (based on total copper) | 75 |
| 8 | Zinc and its compounds (calculated as total zinc) | 75 |
| 9 | Beryllium and its compounds (based on total beryllium) | 0.20 |
| 10 | Barium and its compounds (calculated as total barium) | 150 |
| 11 | Nickel and its compounds (based on total nickel) | 15 |
| 12 | Arsenic and its compounds (in total arsenic) | 2.5 |
| 13 | Inorganic fluorides (excluding calcium fluoride) | 100 |
| 14 | Cyanide (calculated by CN) | 5 |
In the second landfill mode, the stabilized fly ash meets the requirement of pollution control standard of domestic garbage landfill (GB 16889-2008) on the entry of the fly ash generated by burning the domestic garbage (see the table contents in Table 2), and can be independently buried in the domestic garbage sanitary landfill. According to the national hazardous waste record (2016 edition), the fly ash reaches the requirement of the pollution control standard of the domestic garbage landfill (GB 16889-.
The pollution control standard of the domestic garbage landfill (GB 16889 + 2008) requires the following requirements for the entrance of the fly ash generated by burning the domestic garbage: the water content is less than 30 percent; the dioxin content is lower than 3 mu gTEQ/kg; the concentration requirements of hazardous components in leachate prepared according to HJ/T300 are shown in Table 2:
table 2: leachate pollutant Mass concentration Limit (leachate prepared according to HJ/T300)
Therefore, how to provide a method and a system for managing fly ash to realize the close leakage prevention of the whole process of fly ash collection and transportation, no harmful influence on the surrounding environment, reduce the corrosion of the fly ash to a transport vehicle, and meet the requirement that the fly ash can be buried only after reaching the standard in each batch of detection becomes a technical problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a method and a system for managing fly ash, which are used to solve the problems that the prior art cannot meet the requirements of dense and leakage-free whole process of fly ash collection and transportation, and has harmful effects on the surrounding environment, increases the influence on the service life of a transportation vehicle due to the corrosion of fly ash, and further cannot meet the requirement that the fly ash can be buried only after reaching the detection standard for each batch of fly ash.
To achieve the above and other related objects, an aspect of the present invention provides a method for managing fly ash, comprising: collecting the fly ash after the stabilization treatment; wherein, the fly ash after the stabilization treatment is loaded into a plurality of fly ash collecting containers; generating encoded information for a fly ash collection container filled with fly ash; the coded information is used for representing the management attribute of the fly ash; each fly ash collection container has unique coded information; storing the fly ash collecting container at a storage position corresponding to the coding information according to the coding information of the fly ash; extracting a fly ash sample from each storage location; detecting the extracted fly ash sample to obtain a detection result of the fly ash sample, judging whether the detection result meets the landfill standard, and if so, landfill the fly ash meeting the landfill standard; if not, the fly ash which does not reach the landfill standard is reprocessed.
In an embodiment of the present invention, the encoded information is composed of N-bit arabic numerals; wherein, the 1 st to I th digits represent codes of incineration plants, the I +1 st to J th digits represent dates of stabilization treatment of fly ash, the J +1 st to K th digits represent the completion time of loading fly ash into a collection container, which is expressed in 24 hours, the K +1 st to L th digits represent codes of varieties of chemical agents used in the fly ash stabilization treatment process, and the L +1 st to N th digits represent the addition amounts of the chemical agents.
In an embodiment of the invention, after the step of encoding the fly ash collecting container filled with fly ash to generate the encoded information, the method for managing fly ash further includes editing the encoded information to generate a geometric shape recognizable by the mobile terminal.
In one embodiment of the present invention, the fly ash collection container is a fly ash container bag; the fly ash flexible container is sleeved below the discharge port of the fly ash stabilizing treatment system.
In an embodiment of the present invention, the fly ash containing bag is provided with a waterproof transparent bag for containing the information carrier; the information carrier is used for carrying the coded information of each fly ash flexible freight bag; the information carrier further comprises said geometric shapes corresponding one-to-one to the encoded information.
In an embodiment of the invention, the step of reprocessing the fly ash which does not meet the landfill standard includes generating and outputting processing information for the fly ash which does not meet the landfill standard according to the information carrier and the coding information, and transporting the fly ash which does not meet the landfill standard to a corresponding processing unit according to the processing information for processing.
In an embodiment of the invention, the processing information of the fly ash which does not meet the landfill standard includes a storage location of the fly ash which does not meet the landfill standard, a name of the pollutant which does not meet the landfill standard, and a content value of the pollutant.
Another aspect of the present invention provides a system for managing fly ash, comprising: the collecting unit is used for collecting the fly ash after the stabilization treatment; wherein, the fly ash after the stabilization treatment is loaded into a plurality of fly ash collecting containers; the encoding unit is used for generating encoding information for the fly ash collecting container filled with fly ash; the coded information is used for representing the management attribute of the fly ash; each fly ash collecting container is provided with unique coded information; the storage unit is used for storing the fly ash collecting container in a storage position corresponding to the coding information according to the coding information of the fly ash; the detection unit is used for extracting a fly ash sample from each storage position, detecting the extracted fly ash sample to obtain a detection result of the fly ash sample, judging whether the detection result meets the landfill standard or not, and if so, landfill the fly ash meeting the landfill standard through the landfill unit; if not, the fly ash which does not reach the landfill standard is reprocessed through a processing unit.
In an embodiment of the present invention, the system for managing fly ash further includes a transportation unit for transporting a plurality of fly ash collection containers.
In an embodiment of the present invention, the collecting unit further includes: the fixing device is used for sleeving the fly ash collecting container below a feed opening of the fly ash stabilizing system; the filling device is used for filling the fly ash into the fly ash collecting container, has the function of automatically lifting and vibrating bags, enables the fly ash after stabilization treatment to be full of the bottom of the collecting container, and also has the function of automatically loosening the opening, so that the full fly ash collecting container automatically falls off from the discharge opening of the fly ash stabilizing system.
As described above, the method and system for managing fly ash according to the present invention have the following advantageous effects:
the fly ash management method and the system provided by the invention can realize the temporary storage and detection of the fly ash after each batch of stabilized treatment, the fly ash after the detection is qualified can be transported to a landfill site, the whole process informatization management can be realized from fly ash bagging to landfill, the whole process of fly ash collection and transportation can be closely leakage-free, the influence on the surrounding environment is not harmful, the influence on the service life of a transport vehicle caused by the corrosion of the fly ash is reduced, and the requirement that the fly ash can be buried after each batch of fly ash detection reaches the standard is met.
Drawings
FIG. 1 is a flow chart illustrating a fly ash management method according to an embodiment of the present invention.
FIG. 2 is a schematic view of a fly ash containing bag according to an embodiment of the present invention.
FIG. 3 is a schematic structural diagram of a fly ash management system according to an embodiment of the present invention.
Description of the element reference numerals
2 flying ash containing bag
21 waterproof transparent bag
22 card
3 management system of fly ash
31 processing unit
32 collecting unit
33 coding unit
34 memory cell
35 detection unit
S11-S18
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Example one
The embodiment provides a fly ash management method, which comprises the following steps:
collecting the fly ash treated by the fly ash stabilizing system; wherein, the fly ash after the stabilization treatment is loaded into a plurality of fly ash collecting containers;
generating encoded information for a fly ash collection container filled with fly ash; the coded information is used for representing the management attribute of the fly ash; each fly ash collection container has unique coded information;
storing the fly ash collecting container at a storage position corresponding to the coding information according to the coding information of the fly ash;
extracting a fly ash sample from each storage location;
detecting the extracted fly ash sample to obtain a detection result of the fly ash sample, judging whether the detection result meets the landfill standard, and if so, landfill the fly ash meeting the landfill standard; if not, the fly ash which does not reach the landfill standard is reprocessed.
The method for managing fly ash provided in the present embodiment will be described in detail with reference to the drawings. Please refer to fig. 1, which is a flow chart illustrating a fly ash management method according to an embodiment. As shown in fig. 1, the method for managing fly ash specifically includes the following steps:
s11, stabilizing the fly ash. In this example, fly ash was stabilized using a fly ash stabilization system. The fly ash stabilizing system comprises a fly ash storage bin, a conveyor, a weighing hopper, a mixing roll, a dosing system and other equipment and corresponding control programs, wherein the mixing roll is the last ring of the fly ash stabilizing system, and the outlet of the mixing roll is the outlet of the stabilizing system.
S12, collecting the stabilized fly ash and loading the fly ash into a plurality of fly ash collecting containers.
Specifically, the fly ash collecting container is sleeved below a feed opening of the fly ash mixing mill, fly ash is filled into the fly ash collecting container, the fly ash collecting container has the function of automatically lifting and vibrating a bag, so that the bottom of the collecting container can be filled with the stabilized fly ash, and the fly ash collecting container also has the function of automatically loosening the opening, so that the filled fly ash collecting container automatically falls off from the feed opening of a fly ash stabilizing system.
In this embodiment, the fly ash collecting container is a fly ash container bag, and the fly ash container bag is sleeved under the discharge port of the fly ash mixing mill. Please refer to fig. 2, which is a schematic structural diagram of a fly ash container bag in an embodiment. As shown in fig. 2, the fly ash containing bag 2 is provided with a waterproof transparent bag 21 for containing an information carrier. The waterproof transparent bag is a rectangular bag made of transparent plastic materials and is adhered or sewn on the fly ash flexible freight bag. The waterproof transparent bag has one side provided with an opening for accommodating the information carrier. The opening of the waterproof transparent bag can be consistent with the opening direction of the fly ash containing bag and can also be towards the left side or the right side. The opening of the waterproof transparent bag has a self-sealing function, so that the information carrier is prevented from falling out of the bag. The waterproof transparent bag can adopt a zipper type, a vacuum occlusion type or a bag opening covering type. The information carrier is used for carrying the coded information of each fly ash flexible freight bag; the information carrier comprises coding information and geometric shapes which are in one-to-one correspondence with the coding information. In the present embodiment, the information carrier may be a paper card 22, a plastic card, or a metal card, and may be written, engraved, punched, etc. for information.
S13, code information is generated for the fly ash collection container filled with fly ash. The coded information is used for representing the management attribute of the fly ash; each fly ash collection vessel has a unique piece of encoded information. The management attributes of the fly ash include an incineration plant code, an incineration treatment date, a bagging time of the fly ash, a variety of chemical agents for incinerating the garbage, an addition amount of the chemical agents, and the like. The coded information consists of N-bit Arabic numerals; wherein, the 1 st to I th digits represent codes of incineration plants, the I +1 st to J th digits represent the treatment date of the stabilization treatment of the fly ash, the J +1 th to K th digits represent the completion time of the fly ash loading into the collection container, which is expressed in 24 hours, the K +1 th to L th digits represent codes used in the stabilization treatment process of the fly ash, and the L +1 th to N th digits represent the Arabic numeral composition of chemical agent addition amount. In this embodiment, S13 may further include editing the encoded information to generate a geometric form recognizable by the mobile terminal. The geometric shape is a two-dimensional code or a bar code and the like. For example, a card printed with coded information and a two-dimensional code/barcode is inserted into the waterproof transparent bag 21. The coded information is used as the unique identification of the fly ash container bag and the fly ash and fly ash samples in the bag, and is used for information management and transmission by a fly ash pretreatment unit, a fly ash temporary storage unit, a fly ash detection unit, a transportation and landfill disposal unit, a supervision unit and the like, and the code can be directly read by a handheld communication terminal or can be read by workers according to the identification of coded information by eyes. For example, the coded information is composed of 18 digits of Arabic numerals, 1-2 digits of the coded information represent an incineration plant code, 3-10 digits of the coded information represent 8 dates on the day of incineration treatment in the form of yyyymmdd, 11-14 digits of the coded information represent the bagging time of fly ash, 15-16 digits of the coded information represent the variety code of the chemical agent used in the fly ash stabilization treatment process, and 17-18 digits of the coded information represent the chemical agent addition amount.
And S14, storing the fly ash collecting container in a storage position corresponding to the coding information according to the coding information of the fly ash. In this embodiment, according to the encoded information of the fly ash, the fly ash container bags with the encoded information are transported to a fly ash temporary storage yard by a short-lightering transportation device, the fly ash container bags are stacked at a designated position by a hoisting device according to the encoded information and a management method, and the stacking height of the fly ash container bags in the fly ash temporary storage yard is not higher than 3 layers.
S15, a fly ash sample is extracted from each storage location, and the extracted fly ash samples are subjected to sample numbering. In this embodiment, the fly ash in the fly ash collecting container is sampled and numbered bag by bag, batch by batch, day by day or at a designated time and a designated container bag, and the serial numbers of the fly ash samples and the serial numbers of the fly ash container bags correspond to each other.
S16, detecting the extracted fly ash sample to obtain the detection result of the fly ash sample, and judging whether the detection result reaches the landfill standard, if so, executing S17; if not, S18 is executed. In the present embodiment, the landfill standard is a pre-stored standard, such as table 1.
And S17, loading the fly ash meeting the landfill standard to a fly ash transport vehicle through short barge transport equipment and a hoisting device, transporting the fly ash to a fly ash landfill site, and performing landfill. The fly ash landfill site is unloaded through short barge transportation equipment and hoisting equipment, and the unloaded fly ash flexible freight bags can be stacked in a landfill reservoir area or dumped to the landfill reservoir area after being broken.
And S18, reprocessing the fly ash which does not reach the landfill standard.
Specifically, according to the information carrier, the processing information of the fly ash which does not reach the landfill standard is formed and is output and transported to the corresponding processing unit for processing. In this embodiment, the processing information of the fly ash which does not meet the landfill standard includes a storage location where the fly ash which does not meet the landfill standard is located, a pollutant name and/or a pollutant content value which does not meet the landfill standard, and the like.
The fly ash management method provided by the embodiment can realize temporary storage and detection of each batch of stabilized fly ash, the qualified fly ash can be transported to a fly ash landfill site, and the whole process information management can be realized from fly ash bagging to landfill, and the fly ash management method can meet the requirements of the state on safe landfill of each batch of fly ash, can meet the requirements of no leakage in the whole process of fly ash collection and transportation, has no harmful influence on the surrounding environment, reduces the influence on the service life of a transport vehicle due to fly ash corrosion, and meets the national requirements on safe landfill of each batch of fly ash.
Example two
The embodiment provides a management system of fly ash, comprising:
the collecting unit is used for collecting the fly ash after the stabilization treatment; wherein, the fly ash after the stabilization treatment is loaded into a plurality of fly ash collecting containers;
the encoding unit is used for generating encoding information for the fly ash collecting container filled with fly ash; the coded information is used for representing the management attribute of the fly ash; each fly ash collection container has unique coded information;
the storage unit is used for storing the fly ash collecting container in a storage position corresponding to the coding information according to the coding information of the fly ash;
the detection unit is used for extracting a fly ash sample from each storage position, detecting the extracted fly ash sample to obtain a detection result of the fly ash sample, judging whether the detection result meets the landfill standard or not, and if so, landfill the fly ash meeting the landfill standard through the landfill unit; if not, the fly ash which does not reach the landfill standard is reprocessed through a processing unit.
The fly ash management system provided in the present embodiment will be described in detail with reference to the drawings. Please refer to fig. 3, which is a schematic structural diagram of a fly ash management system in an embodiment. As shown in fig. 3, the fly ash management system 3 includes: processing unit 31, collection unit 32, encoding unit 33, storage unit 34, and detection unit 35.
The treatment unit 31 is used for stabilizing fly ash. For example, a fly ash stabilization system is used to mix a chemical chelant with fly ash in a mixer.
The collection unit 32 collects the stabilized fly ash and loads it into a plurality of fly ash collection containers. In this example, fly ash was stabilized using a fly ash stabilization system. The fly ash stabilizing system comprises a fly ash storage bin, a conveyor, a weighing hopper, a mixing roll, a dosing system and other equipment and corresponding control programs, wherein the mixing roll is the last ring of the fly ash stabilizing system, and the outlet of the mixing roll is the outlet of the stabilizing system. Specifically, the collecting unit further comprises a fixing device, and the fixing device is used for sleeving the fly ash collecting container below a feed opening of the fly ash stabilizing system; the filling device is used for filling the fly ash into the fly ash collecting container, has the function of automatically lifting and vibrating bags, enables the fly ash after stabilization treatment to be full of the bottom of the collecting container, and also has the function of automatically loosening the opening, so that the full fly ash collecting container automatically falls off from the discharge opening of the fly ash stabilizing system.
In this embodiment, the fly ash collecting container is a fly ash container bag, and the fly ash container bag is sleeved under the discharge port of the fly ash mixing mill. Please refer to fig. 2, which is a schematic structural diagram of a fly ash container bag in an embodiment. As shown in fig. 2, the fly ash containing bag 2 is provided with a waterproof transparent bag 21 for containing an information carrier; the waterproof transparent bag is a rectangular bag made of transparent plastic materials and is adhered or sewn on the fly ash flexible freight bag. The waterproof transparent bag has one side provided with an opening for accommodating the information carrier. The opening of the waterproof transparent bag can be consistent with the opening direction of the fly ash containing bag and can also be towards the left side or the right side. The opening of the waterproof transparent bag has a self-sealing function, so that the information carrier is prevented from falling out of the bag. The waterproof transparent bag can adopt a zipper type, a vacuum occlusion type or a bag opening covering type. The information carrier is used for carrying the coded information of each fly ash flexible freight bag; the information carrier comprises coding information and geometric shapes which are in one-to-one correspondence with the coding information. In the present embodiment, the information carrier may be a paper card 22, a plastic card, or a metal card, and may be written, engraved, punched, etc. for information. The information carrier is used for carrying the coded information of each fly ash flexible freight bag; the information carrier comprises coding information and geometric shapes which are in one-to-one correspondence with the coding information. The encoding unit 33 is used to generate encoding information for the fly ash collection container filled with fly ash. The coded information is used for representing the management attribute of the fly ash; each fly ash collection vessel has unique coded information. The management attributes of the fly ash include an incineration plant code, an incineration treatment date, a bagging time of the fly ash, a variety of chemical agents for incinerating the garbage, an addition amount of the chemical agents, and the like. The coded information consists of N-bit Arabic numerals; wherein, the 1 st to I th digits represent codes of incineration plants, the I +1 st to J th digits represent the treatment date of the stabilization treatment of the fly ash, the J +1 th to K th digits represent the completion time of the fly ash loading into the collection container, which is expressed in 24 hours, the K +1 th to L th digits represent codes used in the stabilization treatment process of the fly ash, and the L +1 th to N th digits represent the Arabic numeral composition of chemical agent addition amount. In this embodiment, the encoding unit 33 is further configured to edit the encoded information to generate a geometric shape recognizable by the mobile terminal. The geometric shape is a two-dimensional code or a bar code and the like. A card printed with coded information and a two-dimensional code/barcode is inserted into the waterproof transparent bag 21. The coded information is used as the unique identification of the fly ash container bag and the fly ash and fly ash samples in the bag, and is used for information management and transmission by a fly ash pretreatment unit, a fly ash temporary storage unit, a fly ash detection unit, a transportation and landfill disposal unit, a supervision unit and the like, and the code can be directly read by a handheld communication terminal or can be read by workers according to the identification of coded information by eyes.
The storage unit 34 is configured to store the fly ash collecting container in a storage location corresponding to the encoded information according to the encoded information of the fly ash. In this embodiment, according to the encoded information of the fly ash, the fly ash container bags with the encoded information are transported to a fly ash temporary storage yard by a short-lightering transportation device, the fly ash container bags are stacked at a designated position by a hoisting device according to the encoded information and a management method, and the stacking height of the fly ash container bags in the fly ash temporary storage yard is not higher than 3 layers.
The detection unit 35 is used to extract a sample of fly ash from each storage location and sample-number the extracted fly ash sample. In this embodiment, the fly ash in the fly ash collecting container is sampled and numbered bag by bag, batch by batch, day by day or at a designated time and a designated container bag, and the serial numbers of the fly ash samples and the serial numbers of the fly ash container bags correspond to each other.
The detection unit 35 is further configured to detect the extracted fly ash sample to obtain a detection result of the fly ash sample, and determine whether the detection result meets a landfill standard, and if so, load the fly ash meeting the landfill standard to another transportation unit through a transportation unit for transporting a plurality of fly ash collection containers, such as a short barge transportation device and a hoisting device, for example, a fly ash transport vehicle is transported to a fly ash landfill for landfill. Unloading the fly ash landfill site through short barge transportation equipment and hoisting equipment, wherein the unloaded fly ash flexible freight bags can be stacked in a landfill reservoir area or dumped to the landfill reservoir area after the bags are broken; if not, the fly ash which does not meet the landfill standard is reprocessed through the processing unit 31. Specifically, according to the information carrier, the processing information of the fly ash which does not meet the landfill standard is formed and output and transported to the corresponding processing unit 31 for processing. In this embodiment, the processing information of the fly ash which does not meet the landfill standard includes a storage location where the fly ash which does not meet the landfill standard is located, a pollutant name and/or a pollutant content value which does not meet the landfill standard, and the like.
In summary, the fly ash management method and system provided by the invention can realize temporary storage and detection of each batch of stabilized fly ash, the qualified fly ash can be transported to a fly ash landfill site, and the whole process information management can be realized from fly ash bagging to landfill, and the fly ash can meet the requirements of the state on safe landfill of each batch of fly ash, such as no leakage in the whole process of fly ash collection and transportation, no harm to the surrounding environment, reduced influence on the service life of a transport vehicle due to fly ash corrosion, and the like. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A method of managing fly ash, comprising:
collecting the fly ash after the stabilization treatment; wherein, the fly ash after the stabilization treatment is loaded into a plurality of fly ash collecting containers;
generating encoded information for a fly ash collection container filled with fly ash; the coded information is used for representing the management attribute of the fly ash; each fly ash collection container has unique coded information; the management attributes of the fly ash comprise an incineration plant code, an incineration treatment date, a bagging time of the fly ash, the variety of chemical agents for incinerating the garbage and the addition amount of the chemical agents;
storing the fly ash collecting container at a storage position corresponding to the coding information according to the coding information of the fly ash;
extracting a fly ash sample from each storage location;
detecting the extracted fly ash sample to obtain a detection result of the fly ash sample, judging whether the detection result meets the landfill standard, and if so, landfill the fly ash meeting the landfill standard; if not, the fly ash which does not reach the landfill standard is reprocessed; the step of reprocessing the fly ash which does not reach the landfill standard comprises the steps of forming processing information of the fly ash which does not reach the landfill standard according to an information carrier used for carrying the coding information of each fly ash flexible freight bag, and outputting and transporting the processing information to a corresponding processing unit for processing; the processing information of the fly ash which does not meet the landfill standard comprises a storage position of the fly ash which does not meet the landfill standard, a pollutant name and/or a pollutant content numerical value which does not meet the landfill standard.
2. A fly ash management method according to claim 1, wherein the encoded information is composed of N-bit arabic numerals; wherein, the 1 st to I th digits represent codes of incineration plants, the I +1 st to J th digits represent dates of stabilization treatment of fly ash, the J +1 st to K th digits represent the completion time of loading fly ash into a collection container, which is expressed in 24 hours, the K +1 st to L th digits represent codes of varieties of chemical agents used in the fly ash stabilization treatment process, and the L +1 st to N th digits represent the addition amounts of the chemical agents.
3. A method for managing fly ash according to claim 2, wherein after the step of encoding the fly ash collection container filled with fly ash to generate the encoded information, the method for managing fly ash further comprises editing the encoded information to generate a geometric shape recognizable by the mobile terminal.
4. A method of managing fly ash according to claim 3, wherein the fly ash collection container is a fly ash bulk bag; the fly ash flexible container is sleeved below the discharge port of the fly ash stabilizing treatment system.
5. A method of managing fly ash as claimed in claim 4, wherein a waterproof transparent bag for containing an information carrier is provided on the fly ash bulk bag; the information carrier further comprises said geometric shapes corresponding one-to-one to the encoded information.
6. A fly ash management system, comprising:
the collecting unit is used for collecting the fly ash after the stabilization treatment; wherein, the fly ash after the stabilization treatment is loaded into a plurality of fly ash collecting containers;
the encoding unit is used for generating encoding information for the fly ash collecting container filled with fly ash; the coded information is used for representing the management attribute of the fly ash; each fly ash collecting container is provided with unique coded information; the management attributes of the fly ash comprise an incineration plant code, an incineration treatment date, a bagging time of the fly ash, the variety of chemical agents for incinerating the garbage and the addition amount of the chemical agents;
the storage unit is used for storing the fly ash collecting container in a storage position corresponding to the coding information according to the coding information of the fly ash;
the detection unit is used for extracting a fly ash sample from each storage position, detecting the extracted fly ash sample to obtain a detection result of the fly ash sample, judging whether the detection result meets the landfill standard or not, and if so, landfill the fly ash meeting the landfill standard through the landfill unit; if not, the fly ash which does not reach the landfill standard is retreated through a treatment unit; the processing unit forms processing information of the fly ash which does not reach the landfill standard according to the information carrier used for carrying the coding information of each fly ash flexible freight bag, and outputs and transports the processing information to the corresponding processing unit for processing; the processing information of the fly ash which does not meet the landfill standard comprises a storage position of the fly ash which does not meet the landfill standard, a pollutant name and/or a pollutant content numerical value which does not meet the landfill standard.
7. A management system of fly ash according to claim 6, further comprising a transport unit for transporting several fly ash collection containers.
8. A fly ash management system according to claim 6, wherein the collection unit further comprises:
the fixing device is used for sleeving the fly ash collecting container below a feed opening of the fly ash stabilizing system;
the filling device is used for filling the fly ash into the fly ash collecting container, has the function of automatically lifting and vibrating bags, enables the fly ash after stabilization treatment to be full of the bottom of the collecting container, and also has the function of automatically loosening the opening, so that the full fly ash collecting container automatically falls off from the discharge opening of the fly ash stabilizing system.
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