CN205664361U - Coal slurry, coal slime and dry gas multi -fuel fired boiler - Google Patents
Coal slurry, coal slime and dry gas multi -fuel fired boiler Download PDFInfo
- Publication number
- CN205664361U CN205664361U CN201620541793.2U CN201620541793U CN205664361U CN 205664361 U CN205664361 U CN 205664361U CN 201620541793 U CN201620541793 U CN 201620541793U CN 205664361 U CN205664361 U CN 205664361U
- Authority
- CN
- China
- Prior art keywords
- coal
- slurry
- furnace
- dry gas
- coal slime
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a coal slurry, coal slime and dry gas multi -fuel fired boiler, it belongs to the boiler and pressure vessel makes the field. It mainly includes the furnace who is supported by the steelframe, is equipped with the main part above furnace is interior and receives hot side and separation feedback device, separation feedback device to include separator and feedback passageway, is equipped with the bed material below furnace is interior, is equipped with futilely gas burner on the bed is expected, the separator passes through the dense region intercommunication of feedback passageway and furnace below, furnace is connected with the air preheater through the pipeline bottom, and furnace is connected with the air preheater through the economizer top, bed material bottom is equipped with air distribute device, be equipped with temperature sensor in the bed material, the last thick liquid rifle that is equipped with of furnace. The utility model discloses the operation is stable, and easy operation has realized the low -temperature combustion of three kinds of fuel, and is low to the requirement of coal slime and coal slurry quality, has improved combustion efficiency. The utility model discloses the multifuel combustion of mainly used coal slurry, coal slime and dry gas.
Description
Technical field
This utility model belongs to boiler and pressure vessel and manufactures field, specifically, particularly relates to a kind of water-coal-slurry, coal slime
And dry gas multi-fuel fired boiler.
Background technology
Water-coal-slurry is the novel coal derived fuel of one that country advocates energetically, for oil-burning gas-fired boiler, maximum
Advantage is exactly that operating cost is cheap, combustion completion is stable；And coal slime is a kind of product in coal production process, according to producing
The difference of journey, calorific value is different with water content height.If directly abandoned, not only pollute environment, especially a biggest energy wave
Take；Dry gas is as the associated natural gas in oil field, and the content more than 95% of methane, calorific value is the highest.At present, also can not realize this three
The product of class A fuel A multifuel combustion.
Summary of the invention
The purpose of this utility model is to overcome drawbacks described above, it is provided that a kind of water-coal-slurry, coal slime and dry gas multi-fuel fired boiler, its
Stable, simple to operate, it is achieved that the low-temperature burning of three kinds of fuel, the requirement to coal slime and water-coal-slurry quality is low, improves
Efficiency of combustion.
Described water-coal-slurry, coal slime and dry gas multi-fuel fired boiler, including the burner hearth supported by steelframe, is arranged over main in burner hearth
Body heating surface and separation refluxing device, separate below in refluxing device includes separator and feeds back passage, burner hearth and be provided with bed, bed
Material is provided with dry combustion gas device, and separator connects with the emulsion zone below burner hearth by feeding back passage；Burner hearth bottom passes through pipeline
It is connected with air preheater, is connected with air preheater by economizer above burner hearth.
Further, it is provided with air-distribution device bottom described bed.
Further, it is provided with temperature sensor in described bed.
Further, described burner hearth is provided with slurry rifle.
Further, described burner hearth is provided with coal slime charge door.
Further, roof of the furnace is connected with drum by pipeline.
Compared with prior art, the beneficial effects of the utility model are:
1, this utility model high heating value dry gas is as fuel used during furnace lifting, additionally with addition of thermal source, and need not achieve
The low-temperature burning of three kinds of fuel, solve that traditional suspension combustion brings is prone to coking, fluctuation of service, the asking of poor stability
Topic, inhibits again generation and the discharge of thermal NO x simultaneously.
2, bed utilizes the media material that quartz sand is constituted with limestone, and auxiliary achieves water-coal-slurry in low-temperature burning technology
And direct desulfurization during coal combustion, desulphurization system is simple, low cost；
3, achieving the water-coal-slurry after ignition and the circulating combustion of coal slime cluster of grains by feedback passage, it is right to reduce
Coal slime and the requirement of water-coal-slurry quality, make slurrying cost reduce；Meanwhile, separation feedback mode is used to improve the utilization of limestone
Rate, decreases the magnitude of recruitment of media material, improves efficiency of combustion.
4, this utility model is stable, simple to operate, and efficiency of combustion is high, and operation strategies is wide, and Load Regulation characteristic is good,
Can stable operation in the range of the rated load of 70%～100%.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1, drum；2, main body heating surface；3, separator；4, floater；5, slurry rifle；6, dry combustion gas device；7, coal slime
Charge door；8, emulsion zone, 9, bed；10, air-distribution device；11, temperature sensor；12, air preheater；13, economizer；14, platform；
15, passage is fed back.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
Embodiment one: as it is shown in figure 1, water-coal-slurry, coal slime and dry gas multi-fuel fired boiler, including the burner hearth supported by steelframe, stove
Thorax is provided with platform 14, and roof of the furnace is connected with drum 1 by pipeline, is arranged over main body heating surface 2 and separates back in burner hearth
Defeated device, separates lower section in refluxing device includes separator 3 and feeds back passage 15, burner hearth and is provided with bed 9, and bed 9 is provided with dry
Air burner 6, is provided with temperature sensor 11 in bed 9, be provided with air-distribution device 10 bottom bed 9, and separator 3 is by feeding back passage
15 connect with the emulsion zone 8 below burner hearth；Burner hearth bottom is connected with air preheater 12 by pipeline, by economizer 13 above burner hearth
It is connected with air preheater 12.
Embodiment two: described burner hearth is provided with slurry rifle 5, and other is identical with embodiment one.
Embodiment three: described burner hearth is provided with coal slime charge door 7, other is identical with embodiment two.
This utility model in use, first by putting into quartz sand and limestone in the bed 9 of lower furnace portion, is opened afterwards
Dry combustion gas device 6 heats bed 9 so that it is temperature rises to about 600 DEG C, opens the slurry rifle 5 of water-coal-slurry immediately, by drop-wise water coal
Slurry puts in red-hot bed 9, and its temperature is risen to about 750～850 DEG C.Then, coal is put into by coal slime charge door 7
Mud, makes this three class A fuel As co-fire, and utilizes temperature sensor 11 to control the inlet amount of water-coal-slurry and coal slime, thus control bed
The bed temperature of material 9, last temperature-control range is about 850～950 DEG C.Water-coal-slurry and coal slime are rapid under the heating of red-hot bed 9
Separate out moisture, immediately Volatile ignition, make the graininess water-coal-slurry under fluidized state and coal slime group further
Disintegrate as fine grained, and taken out of emulsion zone 8 by heat smoke and enter floater 4 and burn away.The media material taken out of by heat smoke
Bigger water-coal-slurry and coal slime cluster of grains are separated by separator 3, catch by separating refluxing device, by separator 3 bottom
The passage 15 that feeds back arranged returns the emulsion zone 8 of lower furnace portion, had both decreased the loss of media material, and had achieved again cluster of grains
Material circulating combustion, thus obtain high efficiency of combustion, the high-temperature flue gas that burning produces by with drum 1, economizer 13 and sky
Discharge after the heat exchange of pre-device 12.
Additionally, the low-temperature burning process of about 850～950 DEG C, efficiently control the formation of thermal NO x, and due to
Media material is made up of quartz sand and limestone, and limestone is at high temperature calcined generation CaO, CaO and SO2Reaction generates further
CaSO4, it is suppressed that SO2Discharge, and the running temperature of burner is the optimum operation temperature of CaO desulfurization, can effectively reduce
SO2Discharge.
Claims (6)
1. water-coal-slurry, coal slime and a dry gas multi-fuel fired boiler, including the burner hearth supported by steelframe, it is characterised in that: in burner hearth
Side is provided with main body heating surface (2) and separates refluxing device, separates refluxing device and includes separator (3) and feed back passage (15), stove
In thorax, lower section is provided with bed (9), and bed (9) is provided with dry combustion gas device (6), and separator (3) is by feeding back passage (15) and stove
Emulsion zone (8) connection below thorax；Burner hearth bottom is connected with air preheater (12) by pipeline, by economizer (13) above burner hearth
It is connected with air preheater (12).
Water-coal-slurry the most according to claim 1, coal slime and dry gas multi-fuel fired boiler, it is characterised in that: described bed (9) bottom
It is provided with air-distribution device (10).
Water-coal-slurry the most according to claim 2, coal slime and dry gas multi-fuel fired boiler, it is characterised in that: described bed sets in (9)
There is temperature sensor (11).
Water-coal-slurry the most according to claim 3, coal slime and dry gas multi-fuel fired boiler, it is characterised in that: described burner hearth is provided with
Slurry rifle (5).
Water-coal-slurry the most according to claim 4, coal slime and dry gas multi-fuel fired boiler, it is characterised in that: described burner hearth is provided with
Coal slime charge door (7).
Water-coal-slurry the most according to any one of claim 1 to 5, coal slime and dry gas multi-fuel fired boiler, it is characterised in that: burner hearth
Top is connected with drum (1) by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620541793.2U CN205664361U (en) | 2016-06-06 | 2016-06-06 | Coal slurry, coal slime and dry gas multi -fuel fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620541793.2U CN205664361U (en) | 2016-06-06 | 2016-06-06 | Coal slurry, coal slime and dry gas multi -fuel fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205664361U true CN205664361U (en) | 2016-10-26 |
Family
ID=57155580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620541793.2U Expired - Fee Related CN205664361U (en) | 2016-06-06 | 2016-06-06 | Coal slurry, coal slime and dry gas multi -fuel fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205664361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058978A (en) * | 2018-09-29 | 2018-12-21 | 青岛特利尔环保股份有限公司 | Double fuel boiler system |
-
2016
- 2016-06-06 CN CN201620541793.2U patent/CN205664361U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058978A (en) * | 2018-09-29 | 2018-12-21 | 青岛特利尔环保股份有限公司 | Double fuel boiler system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101649215B (en) | Hot carrier preparing and heating device in externally-fired oil shale distillation process | |
| CN109735371A (en) | A kind of biomass circulating fluidized bed direct-combustion boiler and its with gasification furnace coupled electricity-generation co-producing active carbon system | |
| CN202382230U (en) | Fluid bed furnace | |
| CN205664361U (en) | Coal slurry, coal slime and dry gas multi -fuel fired boiler | |
| CN202953993U (en) | Oil shale drying, heating, oil refining, semi-coke combustion integration device | |
| CN104654289B (en) | A kind of crop straw burning fluidized-bed combustion boiler | |
| CN206310480U (en) | A kind of burner hearth for realizing NOx reduction reactions | |
| CN104100967A (en) | Decarburization method of coal gangue and circulating fluidized bed mineral separating boiler | |
| CN204369809U (en) | Oil shale semi-coke fluidized bed combustion circulating mash gas process furnace | |
| CN209511994U (en) | A kind of non helping hand spontaneous combustion heat accumulating type biological particles combustion furnace | |
| CN208952075U (en) | A kind of double burner heating furnace | |
| CN207486791U (en) | A kind of circulating fluidized bed boiler of lower heat of combustion high-ash fuel | |
| CN101362954B (en) | Semi-coke gas multifuel combustion furnace | |
| CN206222296U (en) | Coal-burning boiler oozes hydrogen air mixture burner | |
| CN205856405U (en) | The gasification of biomass Poly-generation of a kind of low emission fires device again | |
| CN206817521U (en) | The burner hearth of biomass fired boiler | |
| CN104676584A (en) | Biomass boiler and method for using heat energy by biomass boiler | |
| CN205473585U (en) | Integrative stove of powder coal carbonization activation | |
| CN203836941U (en) | High-efficiency cleaning suspension fluidization burning coal water slurry fired boiler | |
| CN204100228U (en) | A kind of gangue takes off charcoal recirculating fluidized bed ore dressing boiler | |
| CN204806684U (en) | Coal slurry fluidized bed organic heat carrier boiler | |
| CN209495309U (en) | Spaced apart fractional combustion supercharged oxygen-enriched boiler system above and below a kind of combustion chamber | |
| CN215175186U (en) | High-temperature flue gas heat exchange system of oxidation-reduction reaction furnace | |
| CN209508162U (en) | Water steam coal-fired gasification device | |
| CN204922956U (en) | Circulating fluidized bed boiler of burning offal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20161026 Termination date: 20210606 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |