CN209991467U - Waste incineration fly ash solidification device - Google Patents
Waste incineration fly ash solidification device Download PDFInfo
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- CN209991467U CN209991467U CN201920700403.5U CN201920700403U CN209991467U CN 209991467 U CN209991467 U CN 209991467U CN 201920700403 U CN201920700403 U CN 201920700403U CN 209991467 U CN209991467 U CN 209991467U
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Abstract
The utility model relates to a waste incineration flying ash solidification equipment, it includes the cyclone that communicates with incinerator flue, the outlet of the ash bucket lower extreme of cyclone connects gradually the material mixing mechanism, conveying mechanism, sintering mechanism and flue gas dust removal mechanism, the discharge gate of material mixing mechanism is linked together with the feed inlet of conveying mechanism, the discharge gate of conveying mechanism is linked together with the feed inlet of sintering mechanism, the material mixing mechanism includes the material mixing bucket and sets up flying ash hopper, solid fuel hopper and fluxing agent hopper above the material mixing bucket side by side, the feed inlet of flying ash hopper communicates with the lower extreme outlet of cyclone, the discharge gate of material mixing bucket is provided with the disc granulator, the discharge gate and the conveying mechanism of disc granulator are linked together; the fly ash is mixed with fuel and fluxing agent through the mixing hopper, the mixture is made into a spherical shape through the disc granulator, then the fly ash is solidified through burning the mixture in the sintering furnace, the solidified substance generated by sintering is more compact, the solidification of the fly ash is facilitated, and the equipment operation and management are simple.
Description
Technical Field
The utility model relates to a waste incineration flying dust processing technology, concretely relates to waste incineration flying dust solidification equipment.
Background
In recent years, the incineration treatment of municipal solid waste in China is in a rapid development stage, with the construction and operation of a large number of domestic waste incineration power plants, the flue gas generated by the incineration contains many harmful substances (such as particulate matters, acid gases, metals and the like), and the waste incineration fly ash refers to the residue collected in the flue gas purification system of the waste incineration plant, and generally comprises dust remover fly ash and absorption tower fly ash, wherein the waste incineration fly ash contains flue ash, added chemical agents, chemical reaction products and the like. The waste incineration fly ash is a substance with high specific surface area, not only enriches a large amount of toxic heavy metals such as mercury, lead and cadmium, but also enriches a large amount of kayine substances, is a double-material hazardous waste with the characteristics of heavy metal hazard and environmental persistent organic toxicity hazard, and has great hazard to human health and ecological environment.
The existing solidification device for treating waste incineration fly ash has the problems of complex structure, complex operation, high energy consumption and the like, and the solidification product is loose and messy, so that the solidification and stabilization can not be effectively carried out, and the effect is greatly different from the expectation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a waste incineration flying ash solidification equipment mixes flying ash and fuel, fluxing agent through mixing hopper, and rethread disc granulator makes the mixture into the balling-up form, then burns the mixture through the fritting furnace and solidifies the flying ash, and the cured substance that the sintering produced is more compact, is favorable to the solidification of flying ash, and equipment operation management is simple.
In order to realize the above purpose, the utility model discloses a technical scheme be: the utility model provides a waste incineration flying ash solidification equipment, it includes cyclone 12 with incinerator flue intercommunication, the ash bucket lower extreme export of cyclone 12 connects gradually compounding mechanism, conveying mechanism, sintering mechanism and flue gas dust removal mechanism, the discharge gate of compounding mechanism is linked together with conveying mechanism's feed inlet, conveying mechanism's discharge gate is linked together with sintering mechanism's feed inlet, compounding mechanism includes mixing hopper 4 and sets up flying ash hopper 1, solid fuel fill 2 and fluxing agent fill 3 in mixing hopper 4 top side by side, the feed inlet of flying ash hopper 1 and the lower extreme export of cyclone 12 intercommunication, the discharge gate of mixing hopper 4 is provided with disc granulator 5, the discharge gate of disc granulator 5 is linked together with conveying mechanism.
Further, the conveying mechanism comprises a feeder 13 connected with the discharge port of the disc granulator 5, and the discharge port of the feeder 13 is connected with the feed port of the sintering mechanism through a conveying pipeline.
Furthermore, the solid fuel hopper 2 is internally provided with pulverized coal.
Further, the sintering mechanism comprises a sintering furnace 7, a feed inlet of the sintering furnace 7 is communicated with a discharge outlet of a feeder 13, a slag extractor 8 is arranged below the sintering furnace 7, a heat exchanger 11 is arranged at a smoke outlet of the sintering furnace 7, a fan 9 is arranged at an air inlet of the heat exchanger 11, an air outlet of the heat exchanger 11 is communicated with a blast pipeline 6 arranged on the sintering furnace 7, and the blast pipeline 6 is uniformly distributed along the circumferential direction of the sintering furnace 7.
Further, the flue gas dust removal mechanism comprises a bag-type dust remover 10, the bag-type dust remover 10 is communicated with a smoke outlet of the heat exchanger 11, and an ash outlet of the bag-type dust remover 10 is communicated with a feed inlet of the fly ash hopper 1.
The utility model has the advantages that: the condensate produced by sintering is more compact, which is beneficial to the solidification of fly ash, and the equipment operation and management are simple.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The text labels shown in the figures are represented as: 1. a fly ash hopper; 2. a solid fuel hopper; 3. a fluxing agent hopper; 4. a mixing hopper; 5. a disk pelletizer; 6. a blast duct; 7. sintering furnace; 8. a slag discharging machine; 9. a fan; 10. a bag-type dust collector; 11. a heat exchanger; 12. a cyclone dust collector; 13. a feeder.
Detailed Description
In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.
As shown in fig. 1, the structure of the present invention is: the utility model provides a waste incineration flying ash solidification equipment, it includes cyclone 12 with incinerator flue intercommunication, the ash bucket lower extreme export of cyclone 12 connects gradually compounding mechanism, conveying mechanism, sintering mechanism and flue gas dust removal mechanism, the discharge gate of compounding mechanism is linked together with conveying mechanism's feed inlet, conveying mechanism's discharge gate is linked together with sintering mechanism's feed inlet, compounding mechanism includes mixing hopper 4 and sets up flying ash hopper 1, solid fuel fill 2 and fluxing agent fill 3 in mixing hopper 4 top side by side, the feed inlet of flying ash hopper 1 and the lower extreme export of cyclone 12 intercommunication, the discharge gate of mixing hopper 4 is provided with disc granulator 5, the discharge gate of disc granulator 5 is linked together with conveying mechanism.
Preferably, the conveying mechanism comprises a feeder 13 connected with the discharge port of the disc granulator 5, and the discharge port of the feeder 13 is connected with the feed port of the sintering mechanism through a conveying pipeline.
Preferably, the solid fuel hopper 2 is filled with pulverized coal.
Preferably, the sintering mechanism comprises a sintering furnace 7, a feed inlet of the sintering furnace 7 is communicated with a discharge outlet of a feeder 13, a slag extractor 8 is arranged below the sintering furnace 7, a heat exchanger 11 is arranged at a smoke outlet of the sintering furnace 7, a fan 9 is arranged at an air inlet of the heat exchanger 11, an air outlet of the heat exchanger 11 is communicated with a blast pipeline 6 arranged on the sintering furnace 7, and the blast pipeline 6 is uniformly distributed along the circumferential direction of the sintering furnace 7.
Preferably, the flue gas dust removal mechanism comprises a bag-type dust remover 10, the bag-type dust remover 10 is communicated with a flue gas outlet of the heat exchanger 11, and an ash outlet of the bag-type dust remover 10 is communicated with a feed inlet of the fly ash hopper 1.
When the device is used specifically, fly ash in incineration flue gas is collected through a cyclone dust collector 12, then garbage incineration fly ash, solid fuel and fluxing agent are uniformly mixed in a mixing hopper 4, then the mixture is introduced into a disc granulator 5 to be processed into a pellet shape, then the pellet-shaped material is sent into a sintering furnace 7 through a feeder 13, the mixture continuously descends at a constant speed, preheated air enters the sintering furnace 7 from a blast pipeline 6 through a first fan 10, the preheated air is blown from a tuyere of the sintering furnace 7, pulverized coal in the pellet starts to burn, the fluxing agent and the fly ash absorb heat released by burning, a solidification reaction starts to occur, a solidified body with a compact structure is obtained after the solidified body passes through a heat preservation section at the lower part of the sintering furnace 7, and then the solidified body is rapidly cooled in a slag extractor 8 and is processed and formed to obtain a final product. The flue gas from the sintering furnace 7 firstly heats the air through the heat exchanger 11 to obtain preheated air, then the fly ash is collected through the bag-type dust collector 10, the clean flue gas is discharged from the chimney 9 through the third fan 11, and the collected fly ash is conveyed into the mixing hopper 4 to be stirred and mixed.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principle and the implementation of the present invention have been explained by using specific examples, the description of the above examples is only used to help understand the method and the core idea of the present invention, the above description is only the preferred implementation of the present invention, it should be pointed out that there is an infinite specific structure objectively due to the limited character expression, and for those skilled in the art, without departing from the principle of the present invention, several improvements, decorations or changes can be made, and the above technical features can be combined in a proper manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.
Claims (5)
1. The utility model provides a waste incineration fly ash solidification equipment, it includes cyclone (12) with incinerator flue intercommunication, its characterized in that: the device is characterized in that a mixing mechanism, a conveying mechanism, a sintering mechanism and a flue gas dust removal mechanism are sequentially connected with an outlet at the lower end of an ash hopper of the cyclone dust collector (12), a discharge port of the mixing mechanism is communicated with a feed port of the conveying mechanism, the mixing mechanism comprises a mixing hopper (4), and a fly ash hopper (1), a solid fuel hopper (2) and a fluxing agent hopper (3) which are arranged above the mixing hopper (4) side by side, the feed port of the fly ash hopper (1) is communicated with an outlet at the lower end of the cyclone dust collector (12), a disc granulator (5) is arranged at a discharge port of the mixing hopper (4), and the discharge port of the disc granulator (5) is communicated with the conveying mechanism.
2. The waste incineration fly ash solidification device according to claim 1, wherein: the conveying mechanism comprises a feeder (13) connected with a discharge hole of the disc granulator (5), and the discharge hole of the feeder (13) is connected with a feed inlet of the sintering mechanism through a conveying pipeline.
3. The waste incineration fly ash solidification device according to claim 1, wherein: the solid fuel hopper (2) is internally provided with coal dust.
4. The waste incineration fly ash solidification device according to claim 2, wherein: the sintering mechanism comprises a sintering furnace (7), wherein a feed inlet of the sintering furnace (7) is communicated with a discharge outlet of a feeder (13), a slag discharging machine (8) is arranged below the sintering furnace (7), a smoke outlet of the sintering furnace (7) is provided with a heat exchanger (11), an air inlet of the heat exchanger (11) is provided with a fan (9), an air outlet of the heat exchanger (11) is communicated with a blast pipeline (6) arranged on the sintering furnace (7), and the blast pipeline (6) is uniformly distributed along the circumferential direction of the sintering furnace (7).
5. The waste incineration fly ash solidification device according to claim 4, wherein: the flue gas dust removal mechanism comprises a bag-type dust remover (10), the bag-type dust remover (10) is communicated with a smoke outlet of the heat exchanger (11), and an ash outlet of the bag-type dust remover (10) is communicated with a feed inlet of the fly ash hopper (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920700403.5U CN209991467U (en) | 2019-05-16 | 2019-05-16 | Waste incineration fly ash solidification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920700403.5U CN209991467U (en) | 2019-05-16 | 2019-05-16 | Waste incineration fly ash solidification device |
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| Publication Number | Publication Date |
|---|---|
| CN209991467U true CN209991467U (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920700403.5U Active CN209991467U (en) | 2019-05-16 | 2019-05-16 | Waste incineration fly ash solidification device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116000052A (en) * | 2023-01-30 | 2023-04-25 | 辽宁省建材工业设计院有限公司 | Method for preparing combustion improver by using fly ash |
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2019
- 2019-05-16 CN CN201920700403.5U patent/CN209991467U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116000052A (en) * | 2023-01-30 | 2023-04-25 | 辽宁省建材工业设计院有限公司 | Method for preparing combustion improver by using fly ash |
| CN116000052B (en) * | 2023-01-30 | 2024-04-16 | 深圳市东方绿苑环保科技有限公司 | Method for preparing combustion improver by using fly ash |
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