CN211757542U - Waste incineration power generation system - Google Patents
Waste incineration power generation system Download PDFInfo
- Publication number
- CN211757542U CN211757542U CN201922392981.XU CN201922392981U CN211757542U CN 211757542 U CN211757542 U CN 211757542U CN 201922392981 U CN201922392981 U CN 201922392981U CN 211757542 U CN211757542 U CN 211757542U
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- Prior art keywords
- concentrated solution
- boiler
- leachate
- power generation
- generation system
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- 238000010248 power generation Methods 0.000 title claims abstract description 16
- 238000004056 waste incineration Methods 0.000 title claims abstract description 16
- 239000008235 industrial water Substances 0.000 claims abstract description 16
- 239000000428 dust Substances 0.000 claims abstract description 10
- 239000010813 municipal solid waste Substances 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 8
- 239000012141 concentrate Substances 0.000 claims 1
- 239000010881 fly ash Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 11
- 239000002699 waste material Substances 0.000 abstract description 11
- 239000002738 chelating agent Substances 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000002956 ash Substances 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000007711 solidification Methods 0.000 abstract description 6
- 230000008023 solidification Effects 0.000 abstract description 6
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 5
- 150000002500 ions Chemical class 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 239000002920 hazardous waste Substances 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000009920 chelation Effects 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- -1 on one hand Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a waste incineration power generation system, which comprises a leachate treatment station for treating waste leachate and a mixer arranged in an ash bin for chelating and solidifying dust, wherein the leachate treatment station is provided with a concentrated solution discharge port and an industrial water discharge port, the concentrated solution discharge port is connected with the mixer through a pipeline, and the pipeline is provided with a pump for providing power; compared with the traditional process, on one hand, the concentrated solution replaces industrial water to prepare the chelating agent, so that water resources are saved, and the production cost is reduced; on the other hand, the concentrated solution is prevented from being sprayed back to the boiler, so that the combustion efficiency of the boiler is improved, the corrosion to the boiler is reduced, and the investment of equipment is reduced; the utility model uses the concentrated solution as the raw material again, comprehensively utilizes hazardous wastes, and has more environment-friendly treatment mode for the concentrated solution; and the concentrated solution contains heavy metal ions, which is beneficial to the coupling treatment of the fly ash and improves the efficiency of fly ash solidification.
Description
Technical Field
The utility model belongs to the technical field of msw incineration power generation and specifically relates to a can be to msw incineration power generation system of recycling of dense solution.
Background
The waste incineration is a traditional method for treating the waste, and the waste incineration method is one of the main methods for treating the urban waste because the waste is treated by the incineration method, the reduction effect is obvious, the land is saved, various pathogens can be killed, toxic and harmful substances are converted into harmless substances, and the heat energy generated by the waste incineration can be used for generating electricity.
As shown in figure 1, the waste incineration power generation system in the prior art comprises a waste pit (1), an incinerator, a leachate treatment station (2) and a turbine generator system, wherein the waste is fermented and dehydrated in the waste pit (1) and then enters the incinerator for combustion, and high-temperature flue gas generated by burning the waste in the incinerator is used for the turbine generator system to generate power. The high-temperature flue gas contains fly ash which is a high-risk waste product and can not be directly discharged into the atmosphere. The high-temperature flue gas is treated by sulfide in the flue gas through a desulfurizing tower, and then is captured by a bag-type dust collector. The flue gas is treated by a bag-type dust collector and then is discharged into the atmosphere through a pipeline; on the other hand, the scraper machine conveys the captured fine dust to the ash bin, and then the chelating and curing treatment is carried out on the dust through the mixing machine (5) in the ash bin. The chelating and curing treatment is mainly to use a chelating agent to cure the dust, and the dust is buried after reaching the domestic garbage burying standard, so that the harmless treatment of the fly ash is completed. The chelating process is mainly characterized in that industrial water, cement and a metal chelating agent are fully stirred and mixed by a mixer according to a certain proportion to form a cured substance. The demand on water resources in the chelation and solidification process is large, and the operation cost is high.
In addition, leachate generated after fermentation and dehydration of the garbage in the garbage pit is subjected to nitrification, denitrification and filtration treatment by a leachate treatment station (2) to generate most of industrial water and a small part of concentrated solution, and the industrial water is conveyed to the circulating tank (3) for recycling through an industrial water discharge port (21). Because the concentrated solution contains a large amount of heavy metal ions, the concentrated solution has great pollution to the environment and can not be directly discharged. The traditional treatment method for the concentrated solution comprises the following steps: the concentrated solution is atomized from the concentrated solution outlet (22) and then sprayed back to the boiler (4) for treatment, the water content of the flue gas is increased in the actual back spraying treatment, and the ash deposited on the heated surface of the boiler (4) is seriously corroded due to the complex component content of the concentrated solution, so that the service life of the boiler is greatly shortened, and the operation period of the boiler is also seriously restricted.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve among the msw incineration power generation system dense solution discharge problem provide a using water wisely and to the useless waste incineration power generation system who utilizes multipurposely of danger.
The utility model adopts the technical proposal that: the waste incineration power generation system comprises a leachate treatment station for treating waste leachate and a mixing machine arranged in an ash bin for chelating and curing dust, wherein the leachate treatment station is provided with a concentrated solution outlet and an industrial water outlet, the concentrated solution outlet is connected with the mixing machine through a pipeline, and the pipeline is provided with a pump for providing power.
Compared with the traditional process, on one hand, the concentrated solution replaces industrial water to prepare the chelating agent, so that water resources are saved, and the production cost is reduced; on the other hand, the concentrated solution is prevented from being sprayed back to the boiler, so that the combustion efficiency of the boiler is improved, the corrosion to the boiler is reduced, and the investment of equipment is reduced; the utility model uses the concentrated solution as the raw material again, comprehensively utilizes hazardous wastes, and has more environment-friendly treatment mode for the concentrated solution; and the concentrated solution contains heavy metal ions, which is beneficial to the coupling treatment of the fly ash and improves the efficiency of fly ash solidification.
Furthermore, a flow valve is arranged on a pipeline connecting the concentrated solution outlet and the mixing machine. The flow of the concentrated liquid in the pipeline can be controlled according to different requirements.
The utility model has the advantages that: the waste incineration power generation system of the utility model leads the concentrated solution to the mixing machine for mixing of the chelating agent instead of industrial water, on one hand, water resources are saved, and production cost is reduced; on the other hand, the concentrated solution is prevented from being sprayed back to the boiler, so that the combustion efficiency of the boiler is improved, the corrosion to the boiler is reduced, and the investment of equipment is reduced; the system reuses the concentrated solution as a raw material, comprehensively utilizes hazardous wastes, and has an environment-friendly treatment mode for the concentrated solution; and the concentrated solution contains heavy metal ions, which is beneficial to the coupling treatment of the fly ash and improves the efficiency of fly ash solidification.
Drawings
FIG. 1 is a schematic view of a prior art waste incineration power generation system.
Fig. 2 is a schematic diagram of the present invention.
Reference numerals:
1. a garbage pit; 2. a leachate treatment station; 3. a mixer; 4. a boiler; 5. a mixer; 6. a pump; 7. A flow valve;
21. an industrial water discharge port; 22. and a concentrated solution outlet.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 2, the waste incineration power generation system of the present invention comprises a leachate treatment station 2 for treating waste leachate and a mixer 5 disposed in an ash bin for chelating and solidifying dust, wherein the leachate treatment station 2 is provided with a concentrated solution outlet 22 and an industrial water outlet 21, the concentrated solution outlet 22 is connected with the mixer 5 through a pipeline, and the pipeline is provided with a pump 6 for providing power; a flow valve 7 is arranged on a pipeline connecting the concentrated solution outlet 22 and the mixing machine 5; the mixer was model JS 1000.
Taking a certain waste incineration power plant as an example, the plant is provided with three incineration lines, each incineration line is provided with an incinerator, each incinerator can treat about 500 tons of municipal solid waste per day, the plant can treat 1500 tons of municipal solid waste per day,
taking the daily garbage treatment capacity of a company as an example, the municipal garbage treatment capacity of the company is 1050 tons per day, 1050 tons of garbage can generate about 225 tons of leachate after fermentation, which accounts for 15% of the weight of the garbage, and the leachate is decomposed into 25% of concentrated solution, 70% of industrial water and 5% of sludge through a leachate treatment station, wherein the concentrated solution is about 90 tons. About 45 tons of fly ash, which accounts for 3% of the weight of the garbage, is generated after 1500 tons of municipal garbage are treated. The chelating process is mainly characterized in that industrial water, cement and a metal chelating agent are fully stirred and mixed by a mixer according to a certain proportion to form a cured substance. The 45 tonnes of fly ash produced above required 15 tonnes of process water, 6 tonnes of cement and 0.9 tonnes of metal chelating agent to cure. The mixer was model JS 1000. The waste incineration power generation system uses the concentrated solution to replace industrial water for chelation and solidification treatment. It can be seen that the waste incineration power generation system can save 10 tons of industrial water one day. The problem of concentrated solution discharge is solved, hazardous waste is comprehensively utilized, and the concentrated solution treatment mode is more environment-friendly; and the concentrated solution contains heavy metal ions, which is beneficial to the coupling treatment of the fly ash and improves the efficiency of fly ash solidification.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A garbage incineration power generation system comprises a leachate treatment station (2) for treating garbage leachate and a mixer (5) arranged in an ash bin for chelating and curing dust, wherein the leachate treatment station (2) is provided with a concentrated solution outlet (22) and an industrial water outlet (21),
the concentrated solution outlet (22) is connected with the mixing machine (5) through a pipeline, and a pump (6) for providing power is arranged on the pipeline.
2. Waste incineration power generation system according to claim 1, characterised in that a flow valve (7) is arranged on the pipe connecting between the concentrate discharge (22) and the mixer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922392981.XU CN211757542U (en) | 2019-12-26 | 2019-12-26 | Waste incineration power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922392981.XU CN211757542U (en) | 2019-12-26 | 2019-12-26 | Waste incineration power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211757542U true CN211757542U (en) | 2020-10-27 |
Family
ID=72979625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922392981.XU Active CN211757542U (en) | 2019-12-26 | 2019-12-26 | Waste incineration power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211757542U (en) |
-
2019
- 2019-12-26 CN CN201922392981.XU patent/CN211757542U/en active Active
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