CN216143749U - Concentrated solution treatment system for waste incineration power generation system - Google Patents
Concentrated solution treatment system for waste incineration power generation system Download PDFInfo
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- CN216143749U CN216143749U CN202121963767.6U CN202121963767U CN216143749U CN 216143749 U CN216143749 U CN 216143749U CN 202121963767 U CN202121963767 U CN 202121963767U CN 216143749 U CN216143749 U CN 216143749U
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- concentrated solution
- power generation
- generation system
- incineration power
- waste incineration
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- 238000010248 power generation Methods 0.000 title claims abstract description 21
- 238000004056 waste incineration Methods 0.000 title claims abstract description 20
- 239000007921 spray Substances 0.000 claims abstract description 25
- 239000008235 industrial water Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 11
- 239000012141 concentrate Substances 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 2
- 239000010813 municipal solid waste Substances 0.000 abstract description 23
- 238000002485 combustion reaction Methods 0.000 abstract description 12
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 238000005507 spraying Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 230000003009 desulfurizing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Gasification And Melting Of Waste (AREA)
Abstract
The utility model discloses a concentrated solution treatment system for a waste incineration power generation system, which comprises a leachate treatment station and an incinerator, wherein the top of the incinerator is provided with a feeding hopper, the leachate treatment station is provided with a concentrated solution discharge port and an industrial water discharge port, the feeding hopper is provided with a plurality of spray heads, the spray heads are connected with the concentrated solution discharge port through pipelines, and the pipelines are provided with pumps for providing power; the concentrated solution is sprayed to the feeding hopper, so that the concentrated solution is mixed with the garbage to be incinerated in the feeding hopper and then enters the hearth of the incinerator for combustion, the concentrated solution can be thoroughly removed, and the treatment mode is environment-friendly; meanwhile, the concentrated solution is prevented from being sprayed back to the boiler, the combustion efficiency of the boiler is improved, the corrosion to the boiler is reduced, and the service life of equipment is prolonged.
Description
Technical Field
The utility model relates to the field of waste incineration power generation, in particular to a concentrated solution treatment system for a waste incineration power generation system.
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 fig. 1, the waste incineration power generation system in the prior art includes a waste pit (1), an incinerator, a leachate treatment station (2) and a turbine generator system, waste is fermented and dehydrated in the waste pit (1) and then enters the incinerator for combustion, the waste fermented in the waste pit is grabbed into a feeding hopper at the top of the incinerator through a grab bucket matched with a traveling crane, the waste in the feeding hopper is pushed into a hearth for combustion at intervals through a pusher, and high-temperature flue gas generated by burning the waste in the incinerator is used for the turbine generator system to generate power. Leachate generated after fermentation and dehydration of the garbage in the garbage pit is subjected to anaerobic treatment, nitrification treatment, denitrification treatment and filtration treatment through 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 a circulating pool (3) through an industrial water discharge port (21) for recycling. 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.
The inventor of this application is dedicated to the research of msw incineration power generation, has applied for a msw incineration power generation system that publication number is CN208237882U in 2018, includes the leachate treatment station that handles rubbish leachate and carries out the desulfurizing tower of desulfurization to the flue gas, leachate treatment station is provided with concentrate discharge port and industrial water discharge port, and the desulfurizing tower includes lime thick liquid preparation facilities, metering tank, pump and the rotatory spray tower that connects gradually, the concentrate discharge port passes through the pipeline and is connected with the metering tank, introduces the concentrate into the metering tank. In addition, a waste incineration power generation system with the publication number of CN211757542U was also applied in 2019, which includes a leachate treatment station for treating the leachate of waste and a mixer arranged in the ash bin for chelating and solidifying the 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 mixer through a pipeline, and the pipeline is provided with a pump for providing power. The two applications respectively use the concentrated solution for blending the lime slurry and the chelating agent, so that hazardous wastes are comprehensively utilized, a good effect is obtained, but the amount of the concentrated solution is large, and only part of the concentrated solution can be consumed.
SUMMERY OF THE UTILITY MODEL
Aiming at the problem of concentrated solution discharge in the traditional waste incineration power generation system, the utility model provides a concentrated solution treatment system for a waste incineration power generation system.
The technical scheme adopted by the utility model is as follows: a concentrated solution treatment system for waste incineration power generation system, including leachate treatment station and burning furnace, burn the top of burning furnace and be provided with the feeding hopper, leachate treatment station is provided with concentrated solution discharge port and industrial water discharge port, be provided with a plurality of shower nozzles on the feeding hopper, the shower nozzle passes through the pipe connection concentrated solution discharge port, be provided with the pump that is used for providing power on the pipeline. Compared with the traditional treatment mode of the back-spraying boiler, the method has the advantages that the concentrated solution is sprayed to the feeding hopper, the concentrated solution and the garbage to be incinerated in the feeding hopper are mixed and then enter the hearth of the incinerator for combustion, residues of organic pollutants, heavy metals and the like in the concentrated solution and the garbage are incinerated at high temperature, the organic matters are completely decomposed, and the salt in the concentrated solution can be well and uniformly adsorbed in the burned slag. The utility model avoids the concentrated solution from being sprayed back to the boiler, improves the combustion efficiency of the boiler, reduces the corrosion to the boiler and reduces the investment of equipment; and simultaneously, concentrated solution can be thoroughly removed, and the treatment mode is environment-friendly.
Furthermore, a flow valve is arranged on the pipeline, and the flow of the concentrated liquid in the pipeline can be controlled according to different requirements.
Furthermore, the spray head is arranged at the top of the feeding hopper, and the concentrated solution is uniformly sprayed on the garbage in the feeding hopper by adjusting the angle of the spray head; if set up on the inner wall of magazine, can lead to rubbish to shelter from the shower nozzle, lead to the shower nozzle to block up or the area reduction that sprays of shower nozzle.
Further, the nozzle is an atomizing nozzle, and atomized concentrated liquid can be better mixed with garbage, so that the mixture is more uniform.
Furthermore, the spray heads are horizontally arranged, so that the spraying range of the spray heads is enlarged to the maximum extent, and the sprayed concentrated solution is more uniformly scattered on the garbage.
Furthermore, the spray head is made of metal alloy, has the advantages of high strength, corrosion resistance, rust resistance, light weight and the like, and can greatly prolong the service life of the spray head.
Further, the nozzle is made of titanium alloy.
The utility model has the beneficial effects that: the concentrated solution is sprayed to the feeding hopper, so that the concentrated solution is mixed with the garbage to be incinerated in the feeding hopper and then enters the hearth of the incinerator for combustion, the concentrated solution can be thoroughly removed, and the treatment mode is environment-friendly; meanwhile, the concentrated solution is prevented from being sprayed back to the boiler, the combustion efficiency of the boiler is improved, the corrosion to the boiler is reduced, and the service life of equipment is prolonged.
Drawings
FIG. 1 is a schematic view of a prior art waste incineration power generation system.
Fig. 2 is a schematic structural diagram of the present invention.
Labeled as: 1. a garbage pit; 2. a leachate treatment station; 3. a circulation tank; 4. a boiler; 5. an incinerator; 6. a spray head; 7. a pump; 8. a flow valve; 21. an industrial water discharge port; 22. and a concentrated solution outlet.
Detailed Description
In the description of the present invention, it should be noted that the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model is further described below with reference to the accompanying drawings.
Examples
Referring to fig. 2, the concentrated solution treatment system for a waste incineration power generation system of the present invention comprises a leachate treatment station 2 and an incinerator 5, wherein a feeding hopper is arranged at the top of the incinerator, the leachate treatment station is provided with a concentrated solution discharge port 22 and an industrial water discharge port 21, the feeding hopper is provided with a plurality of nozzles 6, the nozzles 6 are connected with the concentrated solution discharge port 22 through a pipeline, and the pipeline is provided with a pump 7 for providing power. Compared with the traditional treatment mode of the back-spraying boiler, the method has the advantages that the concentrated solution is sprayed to the feeding hopper, the concentrated solution and the garbage to be incinerated in the feeding hopper are mixed and then enter the hearth of the incinerator for combustion, residues of organic pollutants, heavy metals and the like in the concentrated solution and the garbage are incinerated at high temperature, the organic matters are completely decomposed, and the salt in the concentrated solution can be well and uniformly adsorbed in the burned slag. The utility model avoids the concentrated solution from being sprayed back to the boiler, improves the combustion efficiency of the boiler, reduces the corrosion to the boiler and reduces the investment of equipment; and simultaneously, concentrated solution can be thoroughly removed, and the treatment mode is environment-friendly.
Referring to fig. 2, in the embodiment, a flow valve 8 is arranged on the pipeline, and the flow of the concentrated liquid in the pipeline can be controlled according to different requirements.
Referring to fig. 2, the spray head 6 of the embodiment is arranged at the top of the feeding hopper, and the concentrated solution is uniformly sprayed on the garbage in the feeding hopper by adjusting the angle of the spray head; if set up on the inner wall of magazine, can lead to rubbish to shelter from the shower nozzle, lead to the shower nozzle to block up or the area reduction that sprays of shower nozzle.
This embodiment is atomizer at shower nozzle 6, and the dense liquid after the atomizing can be better mixes with rubbish, mixes more evenly.
The spray heads of the embodiment are horizontally arranged, so that the spraying range of the spray heads is enlarged to the maximum extent, and the sprayed concentrated solution is more uniformly scattered on garbage.
The spray head of the embodiment is made of titanium alloy, has the advantages of high strength, corrosion resistance, rust resistance, light weight and the like, and can greatly prolong the service life of the spray head.
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 in one day, and the plant can treat 1500 tons of municipal solid waste in one day. 1500 tons of garbage are fermented to produce about 300 tons of leachate, which accounts for 20% of the weight of the garbage, and the leachate is decomposed into 25% of concentrated liquor, 70% of industrial water and 5% of sludge through a leachate treatment station, wherein the concentrated liquor is about 70 tons. The feeding hoppers of the three incinerators can spray 2 tons of concentrated solution per hour, and 48 tons of concentrated solution can be consumed in one day. The concentrated solution is sprayed to the feeding hopper, so that the concentrated solution is mixed with the garbage to be incinerated in the feeding hopper and then enters the hearth of the incinerator for combustion, the concentrated solution can be thoroughly removed, and the treatment mode is environment-friendly; meanwhile, the concentrated solution is prevented from being sprayed back to the boiler, the combustion efficiency of the boiler is improved, the corrosion to the boiler is reduced, and the service life of equipment is prolonged.
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 (7)
1. A thick liquid processing system for waste incineration power generation system, including leachate treatment station (2) and burning furnace (5), the top of burning furnace is provided with the magazine, and leachate treatment station is provided with thick liquid discharge port (22) and industrial water discharge port (21), characterized in that, be provided with a plurality of shower nozzles (6) on the magazine, shower nozzle (6) are through pipe connection thick liquid discharge port (22), be provided with pump (7) that are used for providing power on the pipeline.
2. The thick liquid treatment system for a refuse incineration power generation system according to claim 1, characterized in that a flow valve (8) is provided on the pipeline.
3. The thick liquid treatment system for a refuse incineration power generation system according to claim 1, characterized in that the spray head (6) is arranged at the top of the hopper.
4. The thick liquid treatment system for a refuse incineration power generation system according to claim 1, characterized in that the spray head (6) is an atomizing spray head.
5. The concentrate treatment system for a waste incineration power generation system according to claim 1, wherein the spray heads are arranged horizontally.
6. The concentrate treatment system for a waste incineration power generation system according to claim 1, wherein the spray head is made of a metal alloy.
7. The concentrate treatment system for a waste incineration power generation system according to claim 6, wherein the spray head is made of a titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121963767.6U CN216143749U (en) | 2021-08-20 | 2021-08-20 | Concentrated solution treatment system for waste incineration power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121963767.6U CN216143749U (en) | 2021-08-20 | 2021-08-20 | Concentrated solution treatment system for waste incineration power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216143749U true CN216143749U (en) | 2022-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121963767.6U Active CN216143749U (en) | 2021-08-20 | 2021-08-20 | Concentrated solution treatment system for waste incineration power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216143749U (en) |
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2021
- 2021-08-20 CN CN202121963767.6U patent/CN216143749U/en active Active
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