CN213656765U - Waste incineration power generation system - Google Patents
Waste incineration power generation system Download PDFInfo
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- CN213656765U CN213656765U CN202022234228.0U CN202022234228U CN213656765U CN 213656765 U CN213656765 U CN 213656765U CN 202022234228 U CN202022234228 U CN 202022234228U CN 213656765 U CN213656765 U CN 213656765U
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Abstract
The application discloses msw incineration power generation system relates to refuse treatment technical field. The garbage incineration power generation system comprises a leachate treatment system, an incineration power generation system and a flue gas treatment system, wherein the leachate treatment system is used for treating leachate in garbage in a reverse osmosis mode to generate reverse osmosis concentrated solution; the incineration power generation system is used for generating power by burning garbage; the flue gas treatment system is used for treating flue gas generated by the incineration power generation system. The percolate treatment system is connected with the flue gas treatment system through a pipeline so as to convey the reverse osmosis concentrated solution to the flue gas treatment system as cooling water. This application is used as the cooling water through carrying the flue gas processing system with reverse osmosis concentrate, can utilize better and absorb reverse osmosis concentrate, has reduced the use of industrial water, has also reduced the waste liquid and has discharged.
Description
Technical Field
The application relates to the technical field of garbage treatment, in particular to a garbage incineration power generation system.
Background
In order to meet the requirement of low emission on environmental protection, a domestic waste incineration power plant can be matched with a leachate treatment system to treat leachate generated in the processes of stacking and fermenting garbage. In the leachate treatment, in order to reach the discharge standard, reverse osmosis is often adopted for treatment. According to the reverse osmosis treatment process, the reverse osmosis concentrated solution after reverse osmosis concentration treatment accounts for about 10-13% of the total amount of the percolate, and the reverse osmosis concentrated solution is usually sprayed back to a garbage incinerator or returned to a garbage pool for stacking garbage.
However, the reverse osmosis concentrated solution is sprayed back to the incinerator, which affects the operation efficiency of the incinerator; and returning to the garbage pool, namely returning part of reverse osmosis concentrated solution to the leachate treatment system, wherein an enrichment effect exists, the load of the leachate treatment system can be increased, and the stable operation of the leachate system is influenced. Thus, the reverse osmosis concentrate in the leachate treatment systems of the prior art is not well taken up.
SUMMERY OF THE UTILITY MODEL
An object of the application is to provide a waste incineration power generation system, which can reasonably utilize reverse osmosis concentrated solution.
The embodiment of the application is realized as follows:
the embodiment of the application provides a waste incineration power generation system, which comprises a leachate treatment system, an incineration power generation system and a flue gas treatment system, wherein the leachate treatment system is used for treating leachate in waste in a reverse osmosis mode to generate reverse osmosis concentrated solution; the incineration power generation system is used for generating power by burning garbage; the flue gas treatment system is used for treating flue gas generated by the incineration power generation system;
wherein, the leachate treatment system is connected with the flue gas treatment system through a pipeline to convey the reverse osmosis concentrated solution to the flue gas treatment system as cooling water.
In an alternative embodiment, the flue gas treatment system comprises a reaction tower and an atomizer, wherein the reaction tower is communicated with the incineration power generation system to receive the flue gas generated by the incineration power generation system; the atomizer is communicated with the percolate treatment system through a first pipeline and is used for receiving reverse osmosis concentrated liquid and spraying the reverse osmosis concentrated liquid out of the reaction tower.
In an alternative embodiment, a valve and a flow meter are provided on the first line.
In an alternative embodiment, a check valve is provided on the first line.
In an alternative embodiment, a second line is also connected to the atomizer for conveying industrial water to the atomizer.
In an alternative embodiment, the atomizer is a rotary atomizer.
In an alternative embodiment, the atomizer is disposed at the top of the reaction column.
In an alternative embodiment, a nozzle is arranged on the side wall of the reaction tower, the nozzle is communicated with the percolate treatment system through a third pipeline, and the nozzle is used for spraying reverse osmosis concentrated solution into the reaction tower.
In an alternative embodiment, a plurality of nozzles are arranged on the side wall of the reaction tower, and the plurality of nozzles are arranged at intervals in the circumferential direction or the vertical direction of the reaction tower.
In an alternative embodiment, the nozzle is also in communication with the reservoir via a fourth line for injecting gas into the nozzle to atomize the reverse osmosis concentrate from the nozzle.
The beneficial effects of the embodiment of the application are that:
the embodiment of the application provides a waste incineration power generation system, which comprises a leachate treatment system, an incineration power generation system and a flue gas treatment system, wherein the leachate treatment system is used for treating leachate in waste in a reverse osmosis mode to generate reverse osmosis concentrated solution; the incineration power generation system is used for generating power by burning garbage; the flue gas treatment system is used for treating flue gas generated by the incineration power generation system. The percolate treatment system is connected with the flue gas treatment system through a pipeline so as to convey the reverse osmosis concentrated solution to the flue gas treatment system as cooling water. In the embodiment of the application, the reverse osmosis concentrated solution is conveyed to the flue gas treatment system to be used as cooling water, so that the reverse osmosis concentrated solution can be well utilized and consumed, the use of industrial water is reduced, and the discharge of waste liquid is also reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic view of a waste incineration power generation system according to an embodiment of the present application;
FIG. 2 is a schematic view of a portion of a waste incineration power generation system according to an embodiment of the present disclosure.
010-waste incineration power generation system; 100-a leachate treatment system; 110-concentrated liquid pool; 120-main line; 121-a delivery pump; 130-a first line; 131-a valve; 132-a flow meter; 133-check valve; 140-a second line; 150-a third line; 160-a gas storage tank; 162-a fourth line; 200-a incineration power generation system; 300-a flue gas treatment system; 310-a reaction column; 311-a nozzle; 320-atomizer.
Detailed Description
The use of waste incineration for power generation is an effective waste recycling way. And the garbage is accumulated and stored in the garbage pool and then enters the incinerator for incineration power generation. During the storage process in the garbage pool, along with the fermentation, leachate is generated, and the leachate accounts for about 20-30% of the total amount of the garbage. Leachate belongs to waste liquid and is generally discharged after being treated by a leachate treatment system. To meet discharge standards, reverse osmosis processes are typically provided to purify the leachate to remove large amounts of salts from the leachate. The filtered clear liquid obtained by reverse osmosis can be discharged after reaching the standard, and the reverse osmosis concentrated solution generated by reverse osmosis contains high-concentration salt and needs to be consumed. The reverse osmosis concentrated solution is about 10-13% of the treatment capacity of the percolate, namely the production amount of the reverse osmosis concentrated solution is about 2-3.9% of the treatment capacity of garbage. These reverse osmosis concentrates are relatively troublesome to treat, and if the reverse osmosis concentrates are sprayed back to the incinerator, the problems of vaporization and heat absorption that the boiler efficiency is reduced and the corrosion of the water wall is caused exist; if flow back to the rubbish pond with reverse osmosis concentrate, be equivalent to reverse osmosis concentrate can pass through filtration liquid processing system once more, have the enrichment effect, can increase filtration liquid processing system load at last, influence filtration liquid system steady operation. Therefore, how to reasonably consume the reverse osmosis concentrated solution is a problem to be solved.
In order to improve the above problem, the embodiment of the application provides a waste incineration power generation system, through carrying reverse osmosis concentrate to flue gas processing system as cooling water for reverse osmosis concentrate can obtain reasonable utilization and absorption.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience of describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Fig. 1 is a schematic view of a waste incineration power generation system 010 according to an embodiment of the present application. Referring to fig. 1, the present embodiment provides a waste incineration power generation system 010, which includes a leachate treatment system 100, an incineration power generation system 200, and a flue gas treatment system 300, wherein the leachate treatment system 100 is configured to treat leachate in waste by a reverse osmosis method to generate a reverse osmosis concentrated solution; the incineration power generation system 200 is used for generating power by burning garbage; the flue gas treatment system 300 is used for treating the flue gas generated by the incineration power generation system 200. Wherein the leachate treatment system 100 is connected to the flue gas treatment system 300 by a pipeline to deliver the reverse osmosis concentrate to the flue gas treatment system 300 as cooling water. The waste incineration power generation system 010 of the embodiment of the application carries the reverse osmosis concentrated solution produced by the leachate treatment system 100 to the flue gas treatment system 300 as cooling water, thereby realizing the reasonable utilization and the consumption of the reverse osmosis concentrated solution.
It should be understood that fig. 1 is only one embodiment of the waste incineration power generation system 010 provided in the present application, and in other alternative embodiments of the present application, the waste incineration power generation system 010 may further include other auxiliary systems to implement corresponding functions, such as pretreatment of waste and the like.
Fig. 2 is a schematic view of a part of a waste incineration power generation system 010 according to an embodiment of the present application. Referring to fig. 1 and 2, the leachate treatment system 100 includes a concentrate tank 110 for holding a reverse osmosis concentrate. The treatment system comprises a reaction tower 310 and an atomizer 320, optionally, the atomizer 320 is disposed at the top of the reaction tower 310. In this embodiment, the reaction tower 310 may be a semi-dry reaction tower 310, and the reaction tower 310 is in communication with the incineration power generation system 200, and is configured to receive the flue gas generated by the incineration power generation system 200 and enable the flue gas to perform a chemical reaction with a chemical agent in the reaction tower 310, so that harmful substances in the flue gas are removed. In the present embodiment, the concentrate tank 110 is connected to the flue gas treatment system 300 via a pipeline, and particularly communicates with the atomizer 320 via the first pipeline 130. The atomizer 320 is used for receiving the reverse osmosis concentrated solution and spraying the reverse osmosis concentrated solution in the reaction tower 310, so as to cool the flue gas. Of course, the nebulizer 320 may also have more functions, such as spraying a medicament. Optionally, the atomizer 320 is a rotary atomizer to achieve uniform spraying.
Optionally, a valve 131 and a flow meter 132 are disposed on the first line 130. The valve 131 may be used to block or allow the reverse osmosis concentrate to pass through, or to adjust the flow rate of the reverse osmosis concentrate; flow meter 132 may be used to sense flow in the pipeline. Optionally, the valve 131 includes an electric/pneumatic ball valve, an electric/pneumatic regulator valve, or the like. In addition, optionally, a check valve 133 is further provided on the first line 130 to prevent reverse osmosis concentrate from flowing back.
As shown in fig. 2, a second pipeline 140 is further connected to the atomizer 320, and the second pipeline 140 is used for delivering industrial water to the atomizer 320. The industrial water is typically fresh water, which can be replenished by the industrial water supplied on the second line 140 when the water demand of the atomizer 320 is high. Of course, similar to the first line 130, the second line 140 may also be provided with corresponding valves, flow meters, check valves, etc.
In this embodiment, a nozzle 311 is disposed on the sidewall of the reaction tower 310, the nozzle 311 is in communication with the percolate treatment system 100 via the third line 150, and the nozzle 311 is used for spraying the reverse osmosis concentrate into the reaction tower 310. The third pipeline 150 and the nozzle 311 are adapted to cool and spray the flue gas in the reaction tower 310 when the atomizer 320 fails and the flue gas needs to be cooled rapidly, so that the flue gas is cooled rapidly to a suitable temperature for subsequent treatment.
In an alternative embodiment, a plurality of nozzles 311 are disposed on the sidewall of the reaction tower 310, and the plurality of nozzles 311 are spaced apart in the circumferential direction or the vertical direction of the reaction tower 310. As shown in fig. 2, three nozzles 311 are arranged at intervals in the vertical direction, and in an alternative embodiment, a plurality of nozzles 311 arranged circumferentially on the same level may be further included to achieve a more uniform cooling effect.
Of course, corresponding valves, flow meters, check valves, etc. may also be provided in the third line 150 to control the amount of water.
As shown in fig. 2, the second pipeline 140 and the third pipeline 150 are two pipelines divided from the main pipeline 120 connected from the concentrate tank 110, and a delivery pump 121 is further disposed on the main pipeline for providing power for delivering the reverse osmosis concentrate to the flue gas treatment system 300, wherein the power provided by the delivery pump 121 needs to take into account the resistance along the way and the height difference of the access ports of the equipment.
In addition, optionally, the nozzle 311 is also communicated with the air storage tank 160 through a fourth line 162, and the fourth line 162 is used for injecting gas into the nozzle 311 to atomize the reverse osmosis concentrated solution sprayed from the nozzle 311. Valves and flow meters may also be provided in the fourth line 162 to regulate and monitor the flow of gas. When the water sprayed from the spray head needs to be atomized, the fourth line 162 is opened, and the water is atomized by the high-pressure gas.
The working principle of the waste incineration power generation system 010 provided by the embodiment of the application is as follows:
during the operation of the incineration power generation system 200, the flue gas is discharged into the reaction tower 310 of the flue gas treatment system 300 for treatment. Meanwhile, the percolate treatment system 100 conveys the reverse osmosis concentrated solution to the atomizer 320, the atomizer 320 atomizes and sprays the reverse osmosis concentrated solution to cool down the smoke (also can spray out the medicament at the same time), and the flow can be adjusted and monitored through the valve 131 and the flowmeter 132. In some cases, in case of emergency cooling of the reaction tower 310, the reverse osmosis concentrated solution is sprayed into the reaction tower 310 through the third line 150 from the nozzle 311 on the sidewall of the reaction tower 310, so as to achieve rapid cooling. The consumption of the reverse osmosis concentrated solution as the cooling water of the atomizer 320 is about 2.7% (continuous) of the garbage treatment amount; if the atomizer 320 fails and needs to be overhauled, the reverse osmosis concentrated solution is used as emergency spray cooling water, and the consumption is 13.3% of the garbage treatment capacity (short time). That is, when the leachate is less generated, the reverse osmosis concentrated solution is used as cooling water for the atomizer 320 (as emergency injection cooling water in case of failure), and the reverse osmosis concentrated solution can be completely consumed.
To sum up, the embodiment of the present application provides a waste incineration power generation system 010, which includes a leachate treatment system 100, an incineration power generation system 200, and a flue gas treatment system 300, where the leachate treatment system 100 is configured to treat leachate in waste in a reverse osmosis manner to generate a reverse osmosis concentrated solution; the incineration power generation system 200 is used for generating power by burning garbage; the flue gas treatment system 300 is used for treating the flue gas generated by the incineration power generation system 200. The leachate treatment system 100 is connected to the flue gas treatment system 300 by a line to deliver the reverse osmosis concentrate to the flue gas treatment system 300 as cooling water. In the embodiment of the application, the reverse osmosis concentrated solution is conveyed to the flue gas treatment system 300 to be used as cooling water, so that the reverse osmosis concentrated solution can be well utilized and consumed, the use of industrial water is reduced, and the discharge of waste liquid is also reduced.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A waste incineration power generation system is characterized by comprising a leachate treatment system, an incineration power generation system and a flue gas treatment system, wherein the leachate treatment system is used for treating leachate in waste in a reverse osmosis mode to generate reverse osmosis concentrated solution; the incineration power generation system is used for generating power by burning garbage; the flue gas treatment system is used for treating the flue gas generated by the incineration power generation system;
wherein the leachate treatment system is connected with the flue gas treatment system by a pipeline to deliver the reverse osmosis concentrate to the flue gas treatment system as cooling water.
2. The waste incineration power generation system of claim 1, wherein the flue gas treatment system comprises a reaction tower and an atomizer, the reaction tower being in communication with the incineration power generation system to receive the flue gas generated by the incineration power generation system; the atomizer is communicated with the percolate treatment system through a first pipeline and is used for receiving the reverse osmosis concentrated solution and spraying the reverse osmosis concentrated solution out of the reaction tower.
3. The waste incineration power generation system of claim 2, wherein a valve and a flow meter are disposed on the first pipeline.
4. The waste incineration power generation system of claim 2, wherein a check valve is disposed on the first line.
5. The waste incineration power generation system of claim 2, wherein a second line is further connected to the atomizer for delivering industrial water to the atomizer.
6. The waste incineration power generation system of claim 2, wherein the atomizer is a rotary atomizer.
7. The waste incineration power generation system of claim 2, wherein the atomizer is disposed at a top of the reaction tower.
8. The waste incineration power generation system of claim 2, wherein a nozzle is disposed on a side wall of the reaction tower, the nozzle is in communication with the leachate treatment system through a third line, and the nozzle is configured to inject the reverse osmosis concentrate into the reaction tower.
9. The waste incineration power generation system according to claim 8, wherein a plurality of the nozzles are provided on a side wall of the reaction tower, and the plurality of the nozzles are arranged at intervals in a circumferential direction or a vertical direction of the reaction tower.
10. The waste incineration power generation system of claim 9, wherein the nozzle is further in communication with a gas storage tank through a fourth line for injecting gas into the nozzle to atomize the reverse osmosis concentrate ejected by the nozzle.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11502322B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11502323B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11855324B1 (en) | 2022-11-15 | 2023-12-26 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell with heat pump |
| US12040517B2 (en) | 2022-11-15 | 2024-07-16 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell and methods of use thereof |
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2020
- 2020-10-09 CN CN202022234228.0U patent/CN213656765U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11502322B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11502323B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11563229B1 (en) | 2022-05-09 | 2023-01-24 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11611099B1 (en) | 2022-05-09 | 2023-03-21 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11699803B1 (en) | 2022-05-09 | 2023-07-11 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US12107308B2 (en) | 2022-05-09 | 2024-10-01 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11855324B1 (en) | 2022-11-15 | 2023-12-26 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell with heat pump |
| US12040517B2 (en) | 2022-11-15 | 2024-07-16 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell and methods of use thereof |
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