CN217889049U - Processing system of waste incineration fly ash and leachate concentrate - Google Patents
Processing system of waste incineration fly ash and leachate concentrate Download PDFInfo
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- CN217889049U CN217889049U CN202220794365.6U CN202220794365U CN217889049U CN 217889049 U CN217889049 U CN 217889049U CN 202220794365 U CN202220794365 U CN 202220794365U CN 217889049 U CN217889049 U CN 217889049U
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- fly ash
- leachate
- waste incineration
- ash slurry
- flying dust
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
The utility model provides a processing system of waste incineration flying dust and leachate concentrate, including cement kiln system and flying dust and filtration liquid pretreatment systems, flying dust and filtration liquid pretreatment systems include filtration liquid processing apparatus, fly ash storehouse, flying dust thick liquid preparation jar, flying dust thick liquid storage tank and spray gun, filtration liquid processing apparatus collects filtration liquid, carries to flying dust thick liquid preparation jar, flying dust is collected in the fly ash storehouse to carry to fly ash thick liquid preparation jar and flying dust thick liquid storage tank in with filtration liquid wherein in be mixed stirring together, the rethread spray gun spout with cement kiln system's decomposition furnace high temperature combustion decompose. The treatment system not only harmlessly treats the waste incineration fly ash, but also safely treats the percolate concentrated solution, greatly reduces the operation cost of enterprises, and reduces the adverse effect on the environment.
Description
Technical Field
The utility model belongs to the solid waste treatment field, in particular to a processing system of waste incineration flying dust and leachate concentrate.
Background
Landfill disposal is the main treatment mode of the fly ash from waste incineration in China, but a simple landfill mode has serious potential hazards, and the landfill storage capacity is tense as the waste incineration projects increase. About 10% -30% of leachate is generated in the process of stacking and fermenting garbage, a power plant generally adopts a biochemical treatment membrane system and the like to treat the leachate, produced water reaches a recycling standard to be recycled, the system is relatively complex, and the investment cost is high.
The low-cost, environment-friendly and resource-oriented disposal mode of dangerous wastes such as garbage fly ash, leachate and the like is one of the problems which are urgently needed to be solved by the garbage disposal industry at present. Therefore, there is a need to develop a low-cost, environment-friendly and resource-oriented disposal system for garbage fly ash and leachate waste.
SUMMERY OF THE UTILITY MODEL
The not enough of system existence is dealt with to current waste flying dust and leachate, the utility model aims at providing a processing system of waste incineration flying dust and leachate concentrate, not only innoxious refuse incineration flying dust of having dealt with, the leachate concentrate has still been handled safely simultaneously, reduces the running cost of enterprise by a wide margin, reduces the adverse effect to the environment.
The utility model discloses a realize through following technical scheme:
a treatment system for waste incineration fly ash and leachate concentrated solution comprises a cement kiln system and a fly ash and leachate pretreatment system, wherein the fly ash and leachate pretreatment system comprises a leachate treatment device, a fly ash bin, a fly ash slurry preparation tank, a fly ash slurry storage tank and a spray gun, the leachate treatment device collects leachate, conveys the leachate to the fly ash slurry preparation tank, the fly ash bin collects fly ash, conveys the fly ash to the fly ash slurry preparation tank and the fly ash slurry storage tank to be mixed and stirred with the leachate in the fly ash slurry preparation tank and the fly ash slurry storage tank, and then sprays the mixture to a decomposition furnace of the cement kiln system for high-temperature combustion decomposition through the spray gun.
Further, flying dust and leachate pretreatment systems still include that public scraper, public bucket carry machine, batcher, valve and delivery pump, public scraper sets up in the bottom of reaction tower and dust remover, and links to each other with public bucket carry machine, and public bucket carry machine links to each other with the flying dust storehouse, and the ash discharge mouth downside of flying dust storehouse bottom is equipped with push-pull valve and batcher to link to each other with flying dust thick liquid preparation jar, flying dust thick liquid preparation jar links to each other with flying dust thick liquid storage tank, and flying dust thick liquid storage tank passes through the delivery pump and links to each other with the spray gun.
Furthermore, a valve is arranged between the fly ash slurry preparation tank and the fly ash slurry storage tank.
Further, the gate valve is a manual gate valve, and the feeding machine is an electric air-locking feeding machine.
Furthermore, a fly ash slurry preparation tank and a fly ash slurry storage tank are respectively provided with a stirrer.
Further, the leachate treatment device divides the leachate into concentrated solution and fresh water, the fresh water is discharged after reaching the standard, and the concentrated solution enters the fly ash slurry preparation tank to prepare fly ash slurry.
Further, the mixing ratio of the fly ash and the concentrated solution is 1: between 2 and 1: 4.
Further, the leachate treatment device is arranged at the bottom of the garbage storage pit.
The utility model has the advantages that:
the utility model provides a pair of processing system of waste incineration flying ash and leachate concentrate, through adding the leachate concentrate in the waste incineration flying ash, carry the dore furnace of cement kiln system behind the even pulpiness solid-liquid mixture of agitator stirring formation, spout high-temperature calcination in the dore furnace through the spray gun, utilize cement kiln high temperature to solidify and decompose heavy metal and dioxin, not only innoxious refuse incineration flying ash has been dealt with, the leachate concentrate has still been handled safely simultaneously, reduce the running cost of enterprise by a wide margin, reduce the adverse effect to the environment, really make refuse treatment reach "innoxious, the minimizing, the requirement of resourceization".
Drawings
Fig. 1 is a schematic structural view of the present invention;
wherein: 1-a refuse transport vehicle; 2-a garbage storage pit; 3-a crane grab bucket; 4-driving a vehicle; 5-leachate treatment system; 6-a reaction tower; 7-a dust remover; 8-a common scraper; 9-public bucket elevator; 10-fly ash bin; 11-a feeder; 12-fly ash slurry preparation tank; 13-a stirrer; 14-a valve; 15-fly ash slurry storage tank; 16-a spray gun; 17-decomposing furnace.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in figure 1, the system for treating the fly ash from waste incineration and the percolate concentrated solution comprises a cement kiln system and a fly ash and percolate pretreatment system.
The cement kiln system comprises a grate cooler, a rotary kiln and a decomposing furnace 17 and is a core device of the cement kiln system, one end of the rotary kiln is connected with the grate cooler, and the other end of the rotary kiln is connected with the decomposing furnace 17.
The fly ash and leachate pretreatment system comprises a common scraper machine 8, a common bucket elevator 9, a fly ash bin 10, a feeder 11, a fly ash slurry preparation tank 12, a valve 14, a fly ash slurry storage tank 15, a delivery pump 18, a spray gun 16 and a leachate treatment device 5.
The fly ash and the fly ash of the leachate pretreatment system are from fly ash of a waste incineration system, the fly ash is collected by a 6-reaction tower and a 7-dust remover device, a common scraper 8 is arranged at the bottoms of the reaction tower 6 and the dust remover 7 and is conveyed and stored in a fly ash bin 10 through a common bucket elevator 9, a gate valve and a feeder 11 are arranged at the lower side of an ash discharge port at the bottom of the fly ash bin 10 and are connected with a fly ash slurry preparation tank 12, the fly ash slurry preparation tank 12 is connected with a fly ash slurry storage tank 15, a valve 14 is arranged between the fly ash slurry preparation tank 12 and the fly ash slurry storage tank for controlling the transmission of fly ash slurry, the fly ash slurry in the fly ash slurry storage tank 15 is a solid-liquid mixture, and is sprayed into a decomposing furnace 1 in a cement kiln system through a conveying pump 18 and a spray gun 16 for combustion and decomposition.
The leachate of the fly ash and leachate pretreatment system comes from a garbage storage pit 2 of the garbage storage system, the bottom of the garbage storage pit 2 is connected with a leachate treatment device 5, and the leachate treatment device 5 is connected with a fly ash slurry preparation tank 12. The leachate treatment apparatus 5 separates the leachate into a concentrate and fresh water, the fresh water is discharged after reaching standards, and the concentrate enters the fly ash slurry preparation tank 12 for preparing fly ash slurry.
The fly ash slurry preparation tank 12 and the fly ash slurry storage tank 15 are respectively provided with a stirrer 13, the fly ash from waste incineration and the concentrated solution of the leachate are mixed in the fly ash slurry preparation tank 12 through the stirrer 13, and the mixing ratio of the fly ash from waste incineration to the concentrated solution of the leachate is 1:2 to 1: and 4, intervals.
The gate valve is a manual gate valve, the feeder 11 is an electric air-locking feeder, the output of the feeder 11 is continuously adjustable, and the gate valve and the water inlet of the stirrer 13 are interlocked to ensure the moisture content of the wet ash.
The garbage storage system comprises a garbage storage pit 2, a travelling crane grab bucket 3 and a travelling crane 4, wherein the travelling crane 4 is arranged above the garbage storage pit 2, the travelling crane grab bucket 3 is used for grabbing garbage, and the bottom of the garbage storage pit 2 is connected with a leachate treatment device 5.
The working process of the embodiment is as follows:
the garbage transport vehicle 1 transports the garbage to a cooperative disposal plant area, and the garbage is transported to a weighbridge at a gate of the plant area and subjected to weighing operation; the waste is discharged into the waste storage pit 2. The garbage storage adopts the partition stacking, and two traveling cranes 4 are arranged above the garbage storage pit and are mutually standby. Leachate generated in the storage process of the garbage is divided into concentrated solution and fresh water through the leachate treatment device 5, the fresh water is discharged after reaching the standard, and the concentrated solution enters the fly ash slurry preparation tank 12.
Fly ash collected by a reaction tower 6 and a dust remover 7 in the waste incineration system is conveyed to a public bucket elevator 9 through a public scraper 8, the fly ash is sent into a fly ash bin 10 through the public bucket elevator 9, a manual gate valve and an electric air locking feeder 11 are arranged below an ash discharge port at the bottom of the fly ash bin, the output of the electric air locking feeder 11 is continuously adjustable, and the electric air locking feeder and the water inflow of a stirrer 13 are interlocked to ensure the moisture content of wet ash. The fly ash is conveyed to a fly ash slurry preparation tank 12 by an electric air lock feeder 11, a stirrer 13 is arranged in the fly ash slurry preparation tank 12 to realize the primary mixing of the waste incineration fly ash and percolate concentrated solution, the primarily mixed solid-liquid mixture enters a fly ash slurry storage tank 15, and a pipeline can be controlled by a valve 14. Also disposed within fly ash slurry tank 15 is an agitator 13 for further mixing the fly ash with the concentrate percolate. The uniformly mixed slurry solid-liquid mixture is conveyed by a conveying pump 18, and finally sprayed into a decomposing furnace 17 through a spray gun 16 for high-temperature calcination, and heavy metals and dioxin are solidified and decomposed by using the high temperature of a cement kiln.
The system not only harmlessly disposes the waste incineration fly ash, but also safely disposes the leachate concentrated solution, greatly reduces the operation cost of enterprises, reduces the adverse effect on the environment, and really makes the waste disposal meet the requirements of harmlessness, reduction and reclamation.
Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications, equivalents, improvements and the like can be made in the technical solutions of the foregoing embodiments or in some technical features of the foregoing embodiments, but all modifications, equivalents, improvements and the like within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (7)
1. The system for treating the waste incineration fly ash and leachate concentrated solution is characterized by comprising a cement kiln system and a fly ash and leachate pretreatment system, wherein the fly ash and leachate pretreatment system comprises a leachate treatment device (5), a fly ash bin (10), a fly ash slurry preparation tank (12), a fly ash slurry storage tank (15) and a spray gun (16), the leachate treatment device (5) is used for collecting leachate and conveying the leachate to the fly ash slurry preparation tank (12), the fly ash bin (10) is used for collecting fly ash and conveying the fly ash to the fly ash slurry preparation tank (12) and the fly ash slurry storage tank (15), the fly ash slurry preparation tank (12) and the fly ash slurry storage tank (15) are used for mixing and stirring the leachate and the fly ash, and the spray gun (16) is used for spraying the mixed ash and leachate into a decomposition furnace (17) of the cement kiln system for high-temperature combustion decomposition.
2. The system for treating the waste incineration fly ash and the leachate concentrated solution according to claim 1, further comprising a common scraper (8), a common bucket elevator (9), a feeder (11), a valve (14) and a delivery pump (18), wherein the common scraper (8) is arranged at the bottom of the reaction tower (6) and the dust remover (7) and is connected with the common bucket elevator (9), the common bucket elevator (9) is connected with the fly ash bin (10), a gate valve and the feeder (11) are arranged at the lower side of an ash discharge port at the bottom of the fly ash bin (10) and are connected with the fly ash slurry preparation tank (12), the fly ash slurry preparation tank (12) is connected with the fly ash slurry storage tank (15), and the fly ash slurry storage tank (15) is connected with the spray gun (16) through the delivery pump (18).
3. A waste incineration fly ash and leachate concentrate treatment system according to claim 2, characterized in that a valve (14) is arranged between the fly ash slurry preparation tank (12) and the fly ash slurry storage tank (15).
4. The system for treating waste incineration fly ash and leachate concentrate according to claim 2, characterized in that the gate valve is a manual gate valve and the feeder (11) is an electric airlock feeder.
5. The system for treating waste incineration fly ash and leachate concentrate as set forth in claim 1, wherein an agitator (13) is provided in each of the fly ash slurry preparation tank (12) and the fly ash slurry storage tank (15).
6. The system for treating fly ash from waste incineration and leachate concentrate of claim 1, wherein the leachate treatment apparatus (5) is configured to separate leachate into concentrate and fresh water, the fresh water is discharged after reaching standards, and the concentrate enters the fly ash slurry preparation tank (12) for preparing fly ash slurry.
7. The system for treating fly ash from waste incineration and leachate concentrate of claim 1, wherein the leachate treatment apparatus (5) is disposed at the bottom of the waste storage pit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220794365.6U CN217889049U (en) | 2022-04-07 | 2022-04-07 | Processing system of waste incineration fly ash and leachate concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220794365.6U CN217889049U (en) | 2022-04-07 | 2022-04-07 | Processing system of waste incineration fly ash and leachate concentrate |
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| Publication Number | Publication Date |
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| CN217889049U true CN217889049U (en) | 2022-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220794365.6U Active CN217889049U (en) | 2022-04-07 | 2022-04-07 | Processing system of waste incineration fly ash and leachate concentrate |
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| Country | Link |
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| CN (1) | CN217889049U (en) |
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2022
- 2022-04-07 CN CN202220794365.6U patent/CN217889049U/en active Active
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