CN209688848U - A kind of flying ash of garbage cremator heat treatment system - Google Patents
A kind of flying ash of garbage cremator heat treatment system Download PDFInfo
- Publication number
- CN209688848U CN209688848U CN201920304157.1U CN201920304157U CN209688848U CN 209688848 U CN209688848 U CN 209688848U CN 201920304157 U CN201920304157 U CN 201920304157U CN 209688848 U CN209688848 U CN 209688848U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- turbofurnace
- furnace
- gas
- heat treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of flying ash of garbage cremator heat treatment systems, including flue gas sintered molten furnace, the exhanst gas outlet pipeline and gas pipeline of flue gas sintered molten furnace connection grate furnace, melter is arranged in the lower part of flue gas sintered molten furnace, smoke inlet and supplement fuel gas inlet are opened up on the side wall of melter, the top of melter is turbofurnace, and melter is connected to turbofurnace；The side wall of turbofurnace opens up Secondary Air entrance, and exhanst gas outlet is opened up at the top of flue gas sintered molten furnace, and exhanst gas outlet connects flue gas exhaust pipeline, and flue gas sintered molten furnace bottom opens up slag-drip opening；Flue gas and supplement combustion gas are melting the particle of Indoor Combustion, flue gas and supplement combustion gas in melting Indoor Combustion, flying dust under 1300 DEG C of sintered molten furnace or more hot environments, and volume reduces the simultaneously residues such as stabilizing heavy metal.The ash content of fusing becomes " slag ", can be recycled as roadbed material, construction material etc., simultaneously because decomposing at high temperature, dioxin be will be greatly reduced in flying dust.
Description
Technical field
The utility model belongs to flue gas of refuse burning processing technology field, and in particular at a kind of flying ash of garbage cremator heat
Reason system.
Background technique
With the fast development of social economy, domestic waste have become society a big public hazards, caused by pollute
It is one of problem urgently to be resolved in the environmental protection of countries in the world.In recent years, the pollution problem of China's domestic waste is also increasingly
Seriously, CR Critical harm is brought to The Surroundings in Cities and sanitary condition, the yield of domestic waste is also rapidly increasing
It is long.Collecting, utilization and processing disposition is such as not added in domestic waste, it will pollution atmosphere, water body and soil influence the appearance of the city
City's looks decline people's lives habitation environment quality, or even endanger human health.
Currently used waste disposal method mainly has garbage sanitary filling, compost and burning.Due to the increasing of China human mortality
Long, the dilatation in city, available soil is fewer and fewer, and incineration treatment of garbage technology has become the following important urban life rubbish
Rubbish processing means.After incineration treatment of garbage, final product is the flue gas and incineration residue of discharge.China is usually incineration residue
It is divided into bottom ash and two kinds of flying dust.Bottom ash mainly by slag, ferrous and nonferrous metals, potsherd, glass and some other can not
Combustion things matter and unburned organic matter composition；And flying ash caused by waste incineration, generally comprise bag filter flying dust and suction
Receive tower flying dust.Also chemical agent and chemical reaction product containing flue dust, addition in flying dust.
House refuse is easy to produce secondary pollution during the burning process, and flying dust is the main carriers of secondary pollution.Due to
Containing a variety of harmful heavy metal substances and salts such as Cd, Pb, Cu, Zn and the Cr that can be flooded out in flying dust, also it is enriched highly concentrated
Degree has most supervirulent dioxin organic pollutant, " National Hazard waste register " clear stipulaties consumer waste incineration
Flying dust is hazardous waste, i.e., number is HW18, and the disposition of flying dust must be carried out in strict accordance with the standard of hazardous waste.
There are many processing mode of incineration of refuse flyash, wherein main includes solidifying to stablize processing technique, chemical treatment and heat
Processing technique.That presently, there are processing costs is higher, complicated for operation for solidification and chemical treatment method, stabilization is small and harmful substance
The problems such as easily leaching；And the innoxious degree of heat treatment technics is thorough, product stability is high, operating cost is moderate, decrement is significant, simultaneously
Resource utilization may be implemented, therefore, it is new that incineration of refuse flyash melt process technology becomes field for the treatment of of solid waste in recent years
Technical solution hot spot.
The patent document of Publication No. CN107931301A discloses a kind of incineration of refuse flyash fused salt heat treatment system, institute
The system of stating includes raw material feed system, flying dust heat treatment system, discharging control system, residual neat recovering system, flue gas purification system.
Flying dust is sufficiently dissolved in fuse salt after contacting with fuse salt, is reacted.The system needs more fuse salt material, and needs additional
Heat supply, processing cost is higher.
The patent document of Publication No. CN201421096Y discloses a kind of incineration of refuse flyash swirl-melting incinerator.Described
Swirl-melting incinerator ontology is the shape structure being made of two sections furnace chamber, and lower section furnace chamber tilts down, the vertical furnace chamber of melting furnace
Part constitutes main melter, and uphill furnace cavity segment constitutes second melting room.The system needs to be arranged flame burner, and energy consumption is higher
And the smoke combustion residence time shorter flue gas that is unfavorable for sufficiently is sintered.
Utility model content
In order to overcome the defects of the prior art described above, the purpose of this utility model is to provide one kind to be based on fluidization
Flying ash of garbage cremator heat treatment system, rubbish is placed in grate furnace and burns, and the flue gas of generation is laggard by grate furnace burner hearth
Fluidized bed flue gas sintered molten furnace, after pyroreaction, flying dust is heat-treated after sintered slag then passes through deslagging and is discharged,
Grate furnace construction and transformation are burned for conventional garbage.
To achieve the goals above, the technical solution adopted in the utility model is a kind of flying ash of garbage cremator heat treatment
System, including flue gas sintered molten furnace, flue gas sintered molten furnace are connected to the exhanst gas outlet pipeline and gas pipeline of grate furnace, cigarette
Melter is arranged in the lower part of gas sintered molten furnace, and smoke inlet and supplement fuel gas inlet, melter are opened up on the side wall of melter
Top be turbofurnace, melter is connected to turbofurnace；The side wall of turbofurnace opens up Secondary Air entrance, and flue gas sintering is molten
Melt and open up exhanst gas outlet at the top of furnace, exhanst gas outlet connects flue gas exhaust pipeline, and flue gas sintered molten furnace bottom opens up slag-drip opening.
Smoke inlet connects flue, the axis of flue along melter's side wall at smoke inlet tangent line side
To；It supplements fuel gas inlet and connects gas pipeline, the axis of the gas pipeline is along melter's side wall at supplement fuel gas inlet
Tangential direction.
There are two smoke inlet and supplement fuel gas inlet are respectively provided with, smoke inlet is set at 90 ° intervals with supplement fuel gas inlet.
Flow, oxygen content and temperature monitoring device are provided on flue；Thermometric galvanic couple is provided in turbofurnace.
The flow monitoring device, oxygen content monitoring device, temperature monitoring device and thermometric galvanic couple are all connected with plant area
DCS。
Turbofurnace is cylindrical shape, and the diameter of turbofurnace is gradually reduced from top to bottom.
Necking down structure is provided between turbofurnace and melter.
Flue gas sintered molten furnace uses fluidized bed type cyclone furnace.
Scum pipe is arranged in the lower section of flue gas sintered molten furnace, and slag-drip opening is connected with scum pipe, connects deslagging by scum pipe
System.
Secondary Air entrance is provided with the two sides of turbofurnace, and the Secondary Air of every side enters in opening's edge turbofurnace vertical direction
There are two portion opens up, Secondary Air entrance connects secondary air duct.
Compared with prior art, the utility model at least has the advantages that
Fuel type melting furnace is mainly made using unburnt fuel in flue gas and additional supplement fuel gas heat release
Ash melting, reaction temperature are up to 1300~1500 DEG C；The organic matters such as dioxin divide at high temperature in lime-ash after furnace processing
Solution rate is while smaller with energy consumption for simple electric power type high temperature sintering melting furnace up to 90% or more, but due to high-temp combustion tail
NO in gas dischargex, the described in the utility model sintered molten furnace category higher than electric power type melting furnace with the secondary pollutions content such as CO
Fly ash granule is when mutually collision probability is high under high-speed rotational acts on and stops in fluidized bed swirl-melting incinerator, the furnace shape flue gas
Between it is long；In addition, the bulky grain slag that sintering is formed is also easy to separate discharge with flue gas, and at the same time, the ash that grate furnace is discharged
The material for having recovery value, such as iron, steel and alumina can be extracted in slag, be easy to recycle；
At a high temperature of 1300~1500 DEG C, sintered molten occurs for flying dust in fluidized bed sintering furnace；Organic matter in flying dust
Pyrolysis, gasification and burning occurs, melting gained slag is the glass matrix of Si-O reticular structure composition, and heavy metal is then effective
It is wrapped in glass matrix, this reticular structure stable structure, so that the leaching rate of heavy metals in glass slag is extremely low；At melting
Reason, which has, preferably subtracts molten effect, and the density of slag is higher, and the flying dust before volume ratio processing is obviously reduced；
In high-temperature fusion treatment process, the organic pollutants such as dioxin in flying dust can be effectively resolved, and be obtained
Slag can be used as roadbed material, the parent glass of devitrified glass, aggregate and asphalt aggregate, can reach recycling again
The standard utilized.
Detailed description of the invention
Fig. 1 is present system process flow schematic block diagram.
Fig. 2 is the utility model flue gas sintered molten furnace structure schematic diagram.
Fig. 3 be Fig. 2 A-A to view schematic diagram.
Wherein: 1- smoke inlet, 2- supplement fuel gas inlet, 3- Secondary Air entrance, 4- melter, 5- scum pipe, 6- whirlwind
Burner hearth, 7- exhanst gas outlet, 11- flue gas first entrance, 12- flue gas second entrance, 21- supplement combustion gas first entrance, 22- supplement combustion
Gas second entrance.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model a part is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of creative work.
As shown in Figure 1, a kind of flying ash of garbage cremator heat treatment system based on fluidization described in the utility model
, including back-end surfaces in grate furnace, flue gas sintered molten furnace, furnace (level-one evaporator, high temperature superheater, medium temperature overheater,
Low temperature superheater, secondary evaporimeter, economizer superheater and economizer), smoke processing system (semi-dry desulphurization reaction tower,
Deduster and low-temperature SCR system) and chimney；Rubbish is placed in grate furnace and burns, and the flue gas of generation passes through grate furnace burner hearth
Laggard fluidized bed flue gas sintered molten furnace is not provided with Secondary Air for the system in grate furnace, Secondary Air setting is burnt in flue gas
It ties in melting furnace；Grate furnace exit gas temperature is generally at 600~800 DEG C；By in flue gas sintered molten furnace high-temperature (1300
~1500 DEG C) after reaction, flying dust, which is heat-treated sintered slag and then passes through slag-drip opening, to be discharged.High-temperature flue gas enter in furnace tail portion by
(level-one evaporator, medium temperature overheater, low temperature superheater, secondary evaporimeter, economizer superheater, saves coal at high temperature superheater in hot face
Device etc.), subsequently into subsequent flue gas purification system (semi-dry desulphurization reaction tower, deduster, low-temperature SCR system, wet desulphurization
Deng), chimney is discharged by air-introduced machine after processing.
As depicted in figs. 1 and 2, a kind of flying ash of garbage cremator heat treatment system, including flue gas sintered molten furnace, flue gas are burnt
The exhanst gas outlet pipeline and gas pipeline of melting furnace connection grate furnace are tied, melter 4 is arranged in the lower part of flue gas sintered molten furnace,
Smoke inlet 1 and supplement fuel gas inlet 2 are opened up on the side wall of melter 4, the top of melter 4 is turbofurnace 6, melter 4
It is connected to turbofurnace 6；The side wall of turbofurnace 6 opens up Secondary Air entrance 3, opens up exhanst gas outlet at the top of flue gas sintering smelting furnace
7, exhanst gas outlet 7 connects flue gas exhaust pipeline, and flue gas sintered molten furnace bottom opens up slag-drip opening；Slag-drip opening is connected with scum pipe 5, cigarette
Scum pipe 5 is arranged in the lower section of gas sintered molten furnace, connects dreg removing system by scum pipe 5.
As shown in figure 3, smoke inlet 1 connects flue, flue as the utility model preferred embodiment
Axis along 4 side wall of melter at smoke inlet tangential direction；It supplements fuel gas inlet 2 and connects gas pipeline, the fuel gas conduit
The axis in road is along the tangential direction for supplementing 4 side wall of melter at fuel gas inlet；Smoke inlet 1 and supplement fuel gas inlet 2 are all provided with
There are two setting, smoke inlet 1 and supplement fuel gas inlet 2 interval are arranged, and the angle at interval is 90 °；11 He of flue gas first entrance
Supplementing is 90 ° between combustion gas first entrance 21, is 90 ° between flue gas second entrance 12 and supplement combustion gas second entrance 22；It is described
Flow, oxygen content and temperature monitoring device are provided on flue；Thermometric galvanic couple is provided in turbofurnace 6.
Turbofurnace 6 is cylindrical shape, and the diameter of turbofurnace 6 is gradually reduced from top to bottom；Turbofurnace 6 and melter 4
Between be provided with necking down structure.
Flue gas sintered molten furnace uses fluidized bed cyclone furnace.
As shown in Fig. 2, Secondary Air entrance 3 is then arranged in flue gas sintered molten furnace middle and upper part, Secondary Air entrance 3 is provided with rotation
The two sides of wind furnace thorax 6, there are two the Secondary Air entrance 3 of every side is opened up along 6 vertical direction of turbofurnace, Secondary Air entrance 3 is connected
Secondary air duct.
Fig. 2 is flue gas sintered molten furnace structure, and the utility model uses the fluidized bed whirlwind type of furnace, burns and generates through grate furnace
Flue gas, contains a certain amount of particulate matter in flue gas, and flue gas enters melter 4 by smoke inlet 1, intake method be tangential swirl into
Gas, as shown in figure 3, flue gas enters melter 4 by flue gas first entrance 11 and flue gas second entrance 12, in sintered molten furnace furnace
If temperature is insufficient, combustion gas is additionally injected into melter 4 and improves ignition temperature, combustion gas passes through supplement 21 He of combustion gas first entrance
It supplements combustion gas second entrance 22 and injects melter 4, then burn in flue gas sintered molten furnace.
Flue gas and supplement fuel gas inlet are provided with 4, and are spaced 90 ° of arrangements, and angential admission mode can make flue gas
Eddy flow is generated in melter 4 with supplement combustion gas, while smoke combustion, into the turbofurnace 6 of 4 top of melter, in flying dust
Particle under high temperature cyclonic action, it may occur that collision sintering and forms bulky grain, and bulky grain is sliding along fluidized bed cyclone furnace furnace wall
Drop down onto the discharge of sintered molten furnace bottom scum pipe 5；And flue gas then passes through exhanst gas outlet 7 and is discharged into subsequent smoke processing system,
Secondary Air is passed through turbofurnace 6 by Secondary Air entrance 3, further ensures that flying dust burns sufficiently in turbofurnace 6, reaches pollution
Object decomposition temperature, in operation, the temperature of turbofurnace 6 is controlled at 1300~1500 DEG C, and temperature is too low, then the special dirt such as dioxin
Dye object is not easily decomposed, and it is excessively high that temperature crosses highly energy-consuming；The temperature of turbofurnace 6 is protected by adjusting supplement gas quantity and secondary air flow
It holds at 1300~1500 DEG C, supplement gas quantity is determined that Secondary Air then ensures the remaining carbon after-flame in flying dust by fire box temperature.
In addition, it should be noted that, the equivalence changes that system described in the utility model is done, are included in this reality
With in the protection scope of new patent.The utility model patent the technical personnel in the technical field can be to described specific
Example is done similar mode and is substituted, and structure without departing from the utility model patent or surmounts the utility model claims
Range defined in book belongs to the protection scope of the utility model patent.
Claims (10)
1. a kind of flying ash of garbage cremator heat treatment system, which is characterized in that including flue gas sintered molten furnace, flue gas sintered molten
Furnace is connected to the exhanst gas outlet pipeline and gas pipeline of grate furnace, and melter (4) are arranged in the lower part of flue gas sintered molten furnace, melting
Smoke inlet (1) and supplement fuel gas inlet (2) are opened up on the side wall of room (4), the top of melter (4) is turbofurnace (6), is melted
Melt room (4) to be connected to turbofurnace (6)；The side wall of turbofurnace (6) opens up Secondary Air entrance (3), flue gas sintered molten furnace
Top opens up exhanst gas outlet (7), and exhanst gas outlet (7) connects flue gas exhaust pipeline, and flue gas sintered molten furnace bottom opens up slag-drip opening.
2. flying ash of garbage cremator heat treatment system according to claim 1, which is characterized in that smoke inlet (1) connection
Flue, the axis of flue along melter at smoke inlet (4) side wall tangential direction；It supplements fuel gas inlet (2)
Gas pipeline is connected, the axis of the gas pipeline is along the tangential direction for supplementing melter (4) side wall at fuel gas inlet.
3. flying ash of garbage cremator heat treatment system according to claim 2, which is characterized in that smoke inlet (1) and benefit
It fills there are two fuel gas inlet (2) is respectively provided with, smoke inlet (1) is set at 90 ° intervals with supplement fuel gas inlet (2).
4. flying ash of garbage cremator heat treatment system according to claim 1, which is characterized in that be provided on flue
Flow, oxygen content and temperature monitoring device；Thermometric galvanic couple is provided in turbofurnace (6).
5. flying ash of garbage cremator heat treatment system according to claim 4, which is characterized in that the flow monitoring dress
It sets, oxygen content monitoring device, temperature monitoring device and thermometric galvanic couple are all connected with plant area DCS.
6. flying ash of garbage cremator heat treatment system according to claim 1, which is characterized in that turbofurnace (6) is circle
The diameter of tubular, turbofurnace (6) is gradually reduced from top to bottom.
7. flying ash of garbage cremator heat treatment system according to claim 1, which is characterized in that turbofurnace (6) and molten
Melt and is provided with necking down structure between room (4).
8. flying ash of garbage cremator heat treatment system according to claim 1, which is characterized in that flue gas sintered molten furnace is adopted
With fluidized bed type cyclone furnace.
9. flying ash of garbage cremator heat treatment system according to claim 1, which is characterized in that flue gas sintered molten furnace
Scum pipe (5) are arranged in lower section, and slag-drip opening is connected with scum pipe (5), connect dreg removing system by scum pipe (5).
10. flying ash of garbage cremator heat treatment system according to claim 1, which is characterized in that Secondary Air entrance (3) is opened
The two sides of turbofurnace (6) are located at, the Secondary Air entrance (3) of every side offers two along turbofurnace (6) vertical direction middle and upper part
A, Secondary Air entrance (3) connects secondary air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920304157.1U CN209688848U (en) | 2019-03-11 | 2019-03-11 | A kind of flying ash of garbage cremator heat treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920304157.1U CN209688848U (en) | 2019-03-11 | 2019-03-11 | A kind of flying ash of garbage cremator heat treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209688848U true CN209688848U (en) | 2019-11-26 |
Family
ID=68604488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920304157.1U Active CN209688848U (en) | 2019-03-11 | 2019-03-11 | A kind of flying ash of garbage cremator heat treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209688848U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812818A (en) * | 2019-03-11 | 2019-05-28 | 中国华能集团清洁能源技术研究院有限公司 | A kind of flying ash of garbage cremator heat treatment system |
| CN112432183A (en) * | 2020-10-23 | 2021-03-02 | 清华大学 | Waste incineration coupling boiler system |
-
2019
- 2019-03-11 CN CN201920304157.1U patent/CN209688848U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812818A (en) * | 2019-03-11 | 2019-05-28 | 中国华能集团清洁能源技术研究院有限公司 | A kind of flying ash of garbage cremator heat treatment system |
| CN109812818B (en) * | 2019-03-11 | 2024-03-22 | 中国华能集团清洁能源技术研究院有限公司 | Waste incinerator fly ash heat treatment system |
| CN112432183A (en) * | 2020-10-23 | 2021-03-02 | 清华大学 | Waste incineration coupling boiler system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109812818A (en) | A kind of flying ash of garbage cremator heat treatment system | |
| CN101201167B (en) | Apparatus and method for gasification of refuse and hyperthermia melt processing of flying ash | |
| CN1259525C (en) | Method of processing refuse burning fly ash through cyclone furnace high temperature melting | |
| CN103471105B (en) | The melting of one way of life refuse gasification and percolation liquid treating system thereof and method | |
| CN101564731B (en) | Innocent treatment device for waste incineration flying ash | |
| CN108704926A (en) | A kind of processing of plasma fusing fly ash and metal recovery utilize system | |
| CN112254133A (en) | Novel dangerous waste combustion online coupling plasma melting integrated system | |
| CN105864782A (en) | Device and method for heating and melting rubbish under oxygen-rich condition | |
| CN209688848U (en) | A kind of flying ash of garbage cremator heat treatment system | |
| CN100424415C (en) | Incineration treating method and system for gasifying and melting domestic waste from city | |
| CN100398907C (en) | Fluidized bed incineration method for industrial organic waste liquid with high salt content | |
| CN102425797A (en) | Combined cyclone boiler combustion device and device for flying ash fusion | |
| CN2921607Y (en) | City life refuse gasification melting incinerating treatment system | |
| CN202328277U (en) | Composite cyclone furnace combustion device for melting flying ash | |
| CN102901106B (en) | Flying ash processing device of fluidized bed incinerator | |
| CN107726331B (en) | Wiring board burns smelting furnace and wiring board burns smelting process | |
| CN204534605U (en) | The liquid waste incineration boiler of the adherent protection of a kind of flue gas recycled | |
| CN103411226A (en) | Incineration disposal method and device of salty wastewater | |
| CN216480999U (en) | Vertical incinerator system | |
| CN210485735U (en) | System for be used for rubbish flying dust and filtration liquid to deal with in coordination | |
| CN114110606A (en) | Organic hazardous waste gasification melting treatment system and method | |
| CN203464289U (en) | Burning processing device for salinity wastewater | |
| CN110822441A (en) | Efficient low-pollution combustion system of cyclone melting furnace for co-combustion of urban solid wastes | |
| CN206786730U (en) | The processing of waste combustion hot melt and the apparatus of empty dirty preventing and treating assembly | |
| CN218936361U (en) | Garbage incinerator fly ash cooperative treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |