CN205383610U - Fly ash treatment system - Google Patents
Fly ash treatment system Download PDFInfo
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- CN205383610U CN205383610U CN201520922652.0U CN201520922652U CN205383610U CN 205383610 U CN205383610 U CN 205383610U CN 201520922652 U CN201520922652 U CN 201520922652U CN 205383610 U CN205383610 U CN 205383610U
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- flying dust
- burner
- cyclone furnace
- treating system
- fluid bed
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Abstract
The utility model provides a fly ash treatment system for the flying dust of production is burned in the processing, including a burner, and, with the 2nd burner of burner intercommunication, a burner is used for utilizing 400 - 700 DEG C temperature to preheat the flying dust, the 2nd burner is used for utilizing 1100 - 1600 DEG C temperature to add the heat fusing to the flying dust after preheating, furthermore, the 2nd burner still includes the flying dust warp of slag -tap mouth, molten condition the slag -tap mouth is discharged. The utility model discloses fly ash treatment system has fine commonality and the energy consumption is low.
Description
Technical field
This utility model relates to environmental protection technical field, particularly relates to a kind of flying dust treating system.
Background technology
The treatment technology that flying ash is commonly used have at present room temperature chemical treatment method (include cement solidification, chemical agent chelating and add acid extraction), hot chemical treatment technology (include melting, sinter and cement kiln coexistence is put), heat chemistry combine with room temperature chemical treatment method.Consider harmless treatment degree, process after generate the aspect such as permanent Leaching of product, melting process for the treatment of is optimum.Because in melting process, dioxin-like chemical is all fallen by pyrolytic, major part heavy metal and salts substances all exist with complex form, flying ash only less than 1% need to be disposed again with the form of secondary flying ash, and the glass state material structure after melted is sufficiently stable.
But, existing fusing fly ash technology has the drawback that
The first, poor universality.Such as, in existing flying dust treatment technology, for the flying dust of infusibility, slag rate is relatively low, and some technology also needs to flying dust is carried out briquetting process；
Two, energy expenditure is big.Such as, in existing technology, owing to flying dust is inadequate at melted residing time in furnace, it has to use Liang Ge melter, process flying dust, so so that energy consumption increases.Additionally, also have a kind of technology, fusing fly ash and waste incineration being mixed, such result is that exhaust gas volumn is very big, this is because, to allow fusing fly ash, these flue gases all must be heated to fusing fly ash temperature, and energy consumption is greatly increased；
Three, melted atmosphere is not good.Fusing fly ash energy consumption is big, is primarily due to flying dust fusing point high, and research shows, under similarity condition, under weakly reducing atmosphere, flying dust fusing point is minimum, takes second place under oxidizing atmosphere, and under strongly reducing atmosphere, fusing point is the highest.But in prior art, but without finding the melted atmosphere how improving flying dust.
Utility model content
In consideration of it, this utility model is directed to a kind of have fine versatility and the low recirculating fluidized bed flying dust treating system of energy consumption.
This utility model flying dust treating system burns, for processing, the flying dust produced, including the first burner and the second burner of connecting with described first burner；Described first burner is for preheating flying dust；Described second burner is for being heated fusing to the flying dust after preheating；Further, described second burner also includes slag tap mouth, and the flying dust of molten condition is discharged through described slag tap mouth.
Further, in above-mentioned flying dust treating system, described first burner is fluid bed；And, described second burner is cyclone furnace.
Further, in above-mentioned flying dust treating system, described fluid bed be provided with first give apparatus for ash and the first coal feeder.
Further, in above-mentioned flying dust treating system, the bottom of described fluid bed is provided with air compartment, and, air compartment be provided above air distribution plate.
Further, in above-mentioned flying dust treating system, described cyclone furnace is provided with slag tap mouth；Described slag tap mouth is arranged at the bottom of described cyclone furnace；Further, described cyclone furnace is additionally provided with the second coal feeder and to wind apparatus.
Further, in above-mentioned flying dust treating system, described cyclone furnace includes two to wind apparatus；Said two is symmetrically arranged in the body of heater of described cyclone furnace to wind apparatus.
Further, in above-mentioned flying dust treating system, the floss hole of the downside of described cyclone furnace is additionally provided with the exhaust gases passes connected with incinerator；It is provided with air preheater in described exhaust gases passes.
Further, in above-mentioned flying dust treating system, the junction of described exhaust gases passes and described cyclone furnace is provided with slag trap.
Compared with prior art, this utility model by fusing fly ash process from the first burner of waste incineration independent, and organically in conjunction with the second burner, energy consumption is low, and slag efficiency is high, raw material (flying dust) highly versatile.Specifically, have the following advantages:
The first, adopt the first burner to flying dust pretreatment, coal dust pyrolytic gasification under adiabatic condition in the first burner, flying dust is heated to certain temperature (400 700 DEG C, adjust according to flying dust fusing point height), and to change the atmosphere residing for flying dust be weakly reducing atmosphere.Highly versatile, and flying dust fusing point can be reduced, save energy；
The second, adopt the second burner that flying dust is carried out melt process, overheavy firing and the feature of the flying dust time of staying can be improved, under adiabatic conditions whirlwind in-furnace temperature is risen to enough temperature (1,100 1600 DEG C, adjust according to flying dust fusing point height), the flying dust of fusing is discharged from bottom with the form of liquid slag.
3rd, novelty by fusing fly ash process from Refuse Incineration Process independent, greatly reduce high-temperature flue gas amount, reduce energy expenditure；
4th, it is introduced directly into incinerator from the second burner high-temperature flue gas out, fusing fly ash and waste incineration are organically combined togather, owing to the exhaust gas volumn of fusing fly ash is only small (through calculating, in waste combustor exhaust gases amount about 5%), on the impact of incineration firing process in adjustable extent, and the temperature promoting incinerator that can be suitable, follow-up Refuse Incineration Process is played a driving role.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit those of ordinary skill in the art be will be clear from understanding.Accompanying drawing is only for illustrating the purpose of preferred implementation, and is not considered as restriction of the present utility model.And in whole accompanying drawing, it is denoted by the same reference numerals identical parts.In the accompanying drawings:
Fig. 1 is the structural representation of this utility model flying dust treating system preferred embodiment；
Fig. 2 is the fundamental diagram of this utility model flying dust treating system.
Detailed description of the invention
It is more fully described the exemplary embodiment of the disclosure below with reference to accompanying drawings.Although accompanying drawing shows the exemplary embodiment of the disclosure, it being understood, however, that may be realized in various forms the disclosure, and should do not limited by embodiments set forth here.On the contrary, it is provided that these embodiments are able to be best understood from the disclosure, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
See figures.1.and.2.
The present embodiment flying dust treating system burns, for processing, the flying dust produced, including the fluid bed 1 as the first burner with connect the cyclone furnace 6 as the second burner with described fluid bed 1；Flying dust is preheated by fluid bed 1 for utilizing the temperature of 400 700 DEG C；Flying dust after preheating is heated fusing for utilizing the temperature of 1,100 1600 DEG C by cyclone furnace；Further, cyclone furnace also includes slag tap mouth 11, and the flying dust of molten condition is discharged through slag tap mouth 11.
Fluid bed 1 be provided with first give apparatus for ash 5 and the first coal feeder 4.Flying dust enters fluid bed 1 to apparatus for ash 5 by first, and coal dust is added by the first coal feeder 4.The bottom of fluid bed 1 is provided with air compartment 3, and, air compartment 3 be provided above air distribution plate 2.Fluidized wind is entered bottom fluid bed 1 by air compartment 3 by air distribution plate 2, bed in fluid bed is fluidized, and it is 400 700 DEG C that fluid bed arranges temperature.Coal dust is pyrolysis partial gasification (controlling to air quantity) in fluid bed 1, releases heat and is preheated by flying dust, material (mainly tar, the coal of residual, CO, CH that pyrolytic gasification produces4、H2、H2O、CO2、N2Deng) and flying dust is mixed together, and tangential feeding cyclone furnace 6 is interior to burn further.
Cyclone furnace 6 is provided with slag tap mouth 6；Slag tap mouth is arranged at the bottom of cyclone furnace 6；Further, cyclone furnace 6 is additionally provided with the second coal feeder 7 and to wind apparatus 8.
Secondary wind in cyclone furnace 6 by tangentially sending into cyclone furnace to wind apparatus 8, is usually and is arranged symmetrically with two same direction of rotation of secondary wind entrance and tangentially blows, only illustrated out one in Fig. 1.Owing to the calorific value of flying dust own is non-normally low, will being heated to high temperature, it is necessary to add coal dust, so also having second coal feeder 7 to be used for adding coal dust on cyclone furnace wall, it is 1,100 1600 DEG C that cyclone furnace arranges temperature.Due to cyclone furnace can overheavy firing, and substantially prolongs the flying dust time of staying, it is sufficient to flying dust is added heat fusing, the flying dust of fusing is drawn from liquid slag-drip opening 11 bottom cyclone furnace 6, and liquid slag can comprehensively utilize after water-cooled.Slag trap 9 is arranged on floss hole on the downside of cyclone furnace 6, i.e. the junction of exhaust gases passes and cyclone furnace 6 is provided with slag trap 9, stops flying dust to enter flue.The floss hole of the downside of cyclone furnace is additionally provided with the exhaust gases passes connected with incinerator；Air preheater 10 it is provided with in exhaust gases passes.From cyclone furnace 6 high-temperature flue gas out through air preheater 10, air is heated to required temperature and sends into fluid bed 1 and cyclone furnace 6, be ultimately delivered in incinerator 12 by the flue gas after air preheater 10.
It can be seen that fluid bed is for carrying out the pre-heat treatment to flying dust, flying dust is carried out melt process by cyclone furnace.It should be noted that for a person skilled in the art, the first burner can adopt the fluid bed of the present embodiment, it is also possible to substitutes with fixing bed, bubbling bed etc., and the second burner can also substitute with molten slag type reactors such as rotary kilns.This is not limited by this utility model.
In flying dust treating system, cyclone furnace 6 is provided with slag tap mouth 6；Slag tap mouth is arranged at the bottom of cyclone furnace 6；Further, cyclone furnace 6 is additionally provided with the second coal feeder 7 and to wind apparatus 8.
The present embodiment by fusing fly ash process from the fluid bed of waste incineration independent, and organically in conjunction with cyclone furnace 6, energy consumption is low, and slag efficiency is high, raw material (flying dust) highly versatile.Specifically, have the following advantages:
The first, adopt fluid bed to flying dust pretreatment, coal dust pyrolytic gasification under adiabatic condition in fluid bed, flying dust is heated to certain temperature (400 700 DEG C, adjust according to flying dust fusing point height), and to change the atmosphere residing for flying dust be weakly reducing atmosphere.Highly versatile, and flying dust fusing point can be reduced, save energy.
The second, adopt cyclone furnace that flying dust is carried out melt process, overheavy firing and the feature of the flying dust time of staying can be improved, under adiabatic conditions whirlwind in-furnace temperature is risen to enough temperature (1,100 1600 DEG C, adjust according to flying dust fusing point height), the flying dust of fusing is discharged from bottom with the form of liquid slag, and the temperature in cyclone furnace preferably can be 1,200 1400 DEG C.
3rd, by fusing fly ash process from Refuse Incineration Process independent, greatly reduce high-temperature flue gas amount, reduce energy expenditure；
4th, it is introduced directly into incinerator from cyclone furnace high-temperature flue gas out, fusing fly ash and waste incineration are organically combined togather, owing to the exhaust gas volumn of fusing fly ash is only small (through calculating, in waste combustor exhaust gases amount about 5%), on the impact of incineration firing process in adjustable extent, and the temperature promoting incinerator that can be suitable, follow-up Refuse Incineration Process is played a driving role.
This utility model adopts fluid bed, under Cryo Heat Insulation, flying dust is carried out the pre-heat treatment, and coal dust is pyrolytic gasification at low temperatures, is not only heated by flying dust, and system atmosphere is become weakly reducing atmosphere, be conducive to the fusing of flying dust.The materials such as the flying dust through fluid bed pretreatment fully enter in cyclone furnace, and under high-temperature heat insulation, flying dust is melted, and discharge from bottom with the form of liquid slag.It is directly entered incinerator after the pre-hot system required air of high-temperature flue gas out in cyclone furnace, process owing to previous one is specific to flying dust, exhaust gas volumn is only small, it is only about the 5% of flue gas of garbage furnace amount below, save energy, subsequent technique impact is little, it is not necessary to unnecessary process device.And it has been respectively arranged coal supply system in fluid bed and cyclone furnace, for the flying dust that fusing point is high, it is possible to by strengthening the coal-supplying amount in fluid bed, improve the temperature of flying dust preheating；For low-melting flying dust, it is possible to by reducing the coal-supplying amount in fluid bed, suitably reducing the temperature of flying dust preheating, so, the versatility of whole device is just greatly reinforced.
Obviously, this utility model can be carried out various change and modification without deviating from spirit and scope of the present utility model by those skilled in the art.So, if these amendments of the present utility model and modification belong within the scope of this utility model claim and equivalent technologies thereof, then this utility model is also intended to comprise these change and modification.
Claims (8)
1. a flying dust treating system, it is characterised in that burn the flying dust produced for processing, including:
First burner, and, the second burner connected with described first burner；
Described first burner is for preheating flying dust；
Described second burner is for being heated fusing to the flying dust after preheating, and is discharged by the flying dust of molten condition.
2. flying dust treating system according to claim 1, it is characterised in that
Described first burner is fluid bed (1)；And
Described second burner is cyclone furnace (6).
3. flying dust treating system according to claim 2, it is characterised in that
Described fluid bed (1) is provided with first to apparatus for ash (5) and the first coal feeder (4).
4. flying dust treating system according to claim 3, it is characterised in that
The bottom of described fluid bed (1) is provided with air compartment (3), and, air compartment (3) be provided above air distribution plate (2).
5. flying dust treating system according to claim 4, it is characterised in that
Described cyclone furnace (6) is provided with slag tap mouth (11)；
Described slag tap mouth (11) is arranged at the bottom of described cyclone furnace (6)；
Further, described cyclone furnace (6) is additionally provided with the second coal feeder (7) and to wind apparatus (8).
6. flying dust treating system according to claim 5, it is characterised in that
Described cyclone furnace (6) includes two to wind apparatus (8)；
Said two is symmetrically arranged in the body of heater of described cyclone furnace to wind apparatus (8).
7. flying dust treating system according to claim 6, it is characterised in that
The floss hole of the downside of described cyclone furnace (6) is additionally provided with the exhaust gases passes connected with incinerator (12)；
Air preheater (10) it is provided with in described exhaust gases passes.
8. flying dust treating system according to claim 7, it is characterised in that
The junction of described exhaust gases passes and described cyclone furnace (6) is provided with slag trap (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922652.0U CN205383610U (en) | 2015-11-18 | 2015-11-18 | Fly ash treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922652.0U CN205383610U (en) | 2015-11-18 | 2015-11-18 | Fly ash treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205383610U true CN205383610U (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520922652.0U Expired - Fee Related CN205383610U (en) | 2015-11-18 | 2015-11-18 | Fly ash treatment system |
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| CN (1) | CN205383610U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465791A (en) * | 2015-11-18 | 2016-04-06 | 北京中科通用能源环保有限责任公司 | Fly ash disposal system |
| CN106238443A (en) * | 2016-09-22 | 2016-12-21 | 新奥科技发展有限公司 | A kind of processing method of two spin-off ashes |
| CN106903130A (en) * | 2017-03-03 | 2017-06-30 | 东南大学 | A kind of method of the middle firm incineration of refuse flyash heavy metal of warm treatment |
| CN107860010A (en) * | 2017-12-04 | 2018-03-30 | 山西大学 | A kind of superhigh temperature flame melting furnace system for being used to handle incineration of refuse flyash |
| CN110397939A (en) * | 2018-04-20 | 2019-11-01 | 中国科学院工程热物理研究所 | The melting process for the treatment of and processing unit of ultralow volatile matter carbon-based fuel |
| CN113464945A (en) * | 2021-07-14 | 2021-10-01 | 安徽科达洁能股份有限公司 | Low-carbon raw material decarburization treatment system and treatment method thereof |
-
2015
- 2015-11-18 CN CN201520922652.0U patent/CN205383610U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465791A (en) * | 2015-11-18 | 2016-04-06 | 北京中科通用能源环保有限责任公司 | Fly ash disposal system |
| CN106238443A (en) * | 2016-09-22 | 2016-12-21 | 新奥科技发展有限公司 | A kind of processing method of two spin-off ashes |
| CN106238443B (en) * | 2016-09-22 | 2018-07-10 | 新奥科技发展有限公司 | A kind of processing method of two spin-off ashes |
| CN106903130A (en) * | 2017-03-03 | 2017-06-30 | 东南大学 | A kind of method of the middle firm incineration of refuse flyash heavy metal of warm treatment |
| CN106903130B (en) * | 2017-03-03 | 2018-12-14 | 东南大学 | A kind of method that medium temperature is heat-treated firm incineration of refuse flyash heavy metal |
| CN107860010A (en) * | 2017-12-04 | 2018-03-30 | 山西大学 | A kind of superhigh temperature flame melting furnace system for being used to handle incineration of refuse flyash |
| CN107860010B (en) * | 2017-12-04 | 2023-07-21 | 山西大学 | Ultra-high temperature flame melting furnace system for treating waste incineration fly ash |
| CN110397939A (en) * | 2018-04-20 | 2019-11-01 | 中国科学院工程热物理研究所 | The melting process for the treatment of and processing unit of ultralow volatile matter carbon-based fuel |
| CN110397939B (en) * | 2018-04-20 | 2021-12-03 | 中国科学院工程热物理研究所 | Melting treatment method and treatment device for ultralow-volatile carbon-based fuel |
| CN113464945A (en) * | 2021-07-14 | 2021-10-01 | 安徽科达洁能股份有限公司 | Low-carbon raw material decarburization treatment system and treatment method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160713 Termination date: 20181118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |