CN2136934Y - Double-bed double-stage circulation boiling combustion boiler - Google Patents
Double-bed double-stage circulation boiling combustion boiler Download PDFInfo
- Publication number
- CN2136934Y CN2136934Y CN 92220223 CN92220223U CN2136934Y CN 2136934 Y CN2136934 Y CN 2136934Y CN 92220223 CN92220223 CN 92220223 CN 92220223 U CN92220223 U CN 92220223U CN 2136934 Y CN2136934 Y CN 2136934Y
- Authority
- CN
- China
- Prior art keywords
- combustion
- bed
- boiler
- double
- boiling
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 53
- 238000009835 boiling Methods 0.000 title claims abstract description 30
- 239000000428 dust Substances 0.000 claims abstract description 21
- 239000003245 coal Substances 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 12
- 239000003546 flue gas Substances 0.000 abstract description 12
- 239000000446 fuel Substances 0.000 abstract description 5
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003830 anthracite Substances 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 abstract description 2
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model provides a double-bed double-circulation fluidized combustion boiler which burns anthracite, lean coal and inferior coal. The two-stage independent circulating combustion furnace is formed by connecting two boiling combustion beds in series through a smoke dust separation device. The two-stage boiling combustion in series prolongs the combustion time of the fuel in the boiler, so that the combustion efficiency of the boiler reaches 95-99%. And the method also has the advantages of inhibiting dust from being leached, adjusting the temperature of the flue gas and the like. It is not only suitable for saturated steam boiler, but also suitable for industrial boiler producing overheat steam.
Description
The utility model belongs to and uses anthracite, the circulation fluidized bed combustion boiler of meager coal and colm.It is not only applicable to wet steamer, can also be applicable to the Industrial Boiler of producing superheated steam.
Make the land used low capacity use the boiling boiler of anthracite, meager coal, colm at present, its shortcoming is that boiler combustion efficiency is not high, and unburned carbon loss (being the q4 loss) is big, causes the boiling boiler thermal efficiency not high, Pai Yan dust content height particularly, the combustible content height in the dust.In recent years the double bed recirculation boiler that occurs, though efficiency of combustion increases, but because of only having a burner hearth and middle structural shape of being separated by with a parapet, the material of secondary ebullated bed is often taken out of by preceding another flue gas, the powder content of its fume emission higher (reaching 40-70% usually in the flue dust row effect amount) into stove coal ash part total amount, the characteristics that also have the boiler smoke temperature to change significantly with the boiler load change simultaneously still are difficult to use in the boiler that has steam superheater.
The purpose of this utility model is intended to overcome above-mentioned deficiency of the prior art, design a kind of new structural shape, it can prolong the burning time of fuel in stove, improves efficiency of combustion, can suppress the dust elutriation again, also can easily adjust the two circulation fluidized bed combustion boilers of double bed of flue-gas temperature.
The purpose of this utility model is achieved in that and adopts two Boiling Combustion beds, two burner hearths, two pressure fans, two coal feeders, two cover pipe laying heating surfaces, two flying dusts reclaim reburning device, and two cover scum pipes are connected into one by cigarette separator (sedimentation flue and blind window separator), constitute the two circulation fluidized bed combustion boilers of double bed.Owing to formed the two-stage Boiling Combustion that independently circulates, greatly prolonged the burning time of fuel, improved efficiency of combustion.Promptly in one-level circulation fluidized bed furnace, the fuel particle of being taken out of burner hearth by the rising flue gas is separated under the centrifugation of sedimentation flue and louver separator, and is reclaimed resume combustion burning device by the one-level flying dust and send Boiling Combustion bed at the corresponding levels resume combustion back to, so move in circles, to reach the purpose of burning.The particulate that can't separate for the blind window separator, enter secondary circulation Boiling Combustion stove, also will be caught once more, reclaim reburning device by the secondary flying dust and send Boiling Combustion bed at the corresponding levels resume combustion back to by cyclone separator, further burn, thereby reach the purpose that improves efficiency of combustion.Secondary Boiling Combustion bed is an ebullated bed that wind speed is extremely low, will the particulate that be recovered is difficult to once more by elutriation, thereby reduce the dust content of boiler emission flue gas, has reduced the pollution of dust to environment.Again owing in a secondary Boiling Combustion bed, all be provided with pipe laying heating surface (reduce or be not provided with water wall surface), and then stablized flue-gas temperature.Utilize the air output that changes secondary Boiling Combustion bed and utilize the secondary coal feeder to change the coal amount of sending into the Boiling Combustion bed and reach the purpose of adjusting flue-gas temperature.Because flue-gas temperature can easily be adjusted, thus can make the boiler that has superheater that a more stable vapor (steam) temperature is arranged, to satisfy steam turbine or other hot users' needs.
Superheat steam temperature is required not really harsh boiler, perhaps, the coal feeder in the secondary circulation Boiling Combustion stove can be set also, to simplify boiler plant through further improving.
Efficiency of combustion of the present utility model can reach 95-99% through test, decide on boiler size, as 35 tons/time boiler combustion efficiency can reach 99%.
The utmost point low speed secondary Boiling Combustion bed that the utility model is alleged, wind speed can be selected in 0.01-0.2m/s.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is a kind of concrete structure pattern of the utility model sketch.
With reference to Fig. 1, two Boiling Combustion beds (2,9) are by gravitational settling flue 5 and the two circulation fluidized bed combustion boilers of louver separator 6 series connection formation double bed.Promptly by pressure fan 1, Boiling Combustion bed 2, coal feeder 3, burner hearth 4, sedimentation flue 5, blind window separator 6, flying dust reclaim reburning device 7, and scum pipe 15 is formed one-level circulation Boiling Combustion stove.Form secondary circulation Boiling Combustion stove by pressure fan 8, Boiling Combustion bed 9, coal feeder 10, burner hearth 11, cyclone separator 12 and flying dust recovery reburning device 13, scum pipe 14.Gravitational settling flue and blind window separator also can adopt advection separator, dust separating devices such as cyclone separator.Heat preserving and insulating material and assembly technology all adopt prior art.
The anthracite that employing is difficult to catch fire, meager coal and colm fuel, during Boiling Combustion, usually the particle greater than 500 μ all is difficult to by louver separator 6, be recovered into the stove resume combustion and reclaimed resume combustion burning device 7 by flying dust, one-level circulation Boiling Combustion stove will be burnt by coal feeder 3 and send into most combustible in the stove, and its burning share can reach 85-90%.Cross the flying dust of blind window separator 6, after entering the secondary circulating combustion furnace, wherein the flying dust of major part＞10 μ is separated from flue gas by flying dust recovery reburning device 13 by cyclone separator 2 again and is sent into 9 resume combustion of secondary Boiling Combustion bed, after treating to burn substantially, is discharged out of the furnace by scum pipe 14.So just avoided a large amount of dust to be discharged into the atmosphere pollution environment with flue gas.Again owing in I and II Boiling Combustion bed, all be provided with pipe laying heating surface 16, and then stablized flue-gas temperature, reached the adjustment flue-gas temperature, made the steam of band superheater 17 obtain utilizing by the coal-supplying amount of control coal feeder 10 and the air output of pressure fan 8.
Claims (2)
1, a kind of by pressure fan (1,8), Boiling Combustion bed (2,9), coal feeder (3,10), dust separating device (5,6,12), burner hearth (4,11), two cover pipe laying heating surfaces (16), flying dust reclaims the two circulation fluidized bed combustion boilers of double bed of reburning device (7,13), scum pipe (15,14) composition, it is characterized in that two Boiling Combustion beds (2,9) constitute a secondary independent loops combustion furnace by dust separating device (5,6) series connection.
2, the two circulation fluidized bed combustion boilers of double bed as claimed in claim 1 is characterized in that secondary circulation Boiling Combustion stove can reclaim reburning device 13, scum pipe 14 and pipe laying heating surface 16 by pressure fan 8, Boiling Combustion bed 9, burner hearth 11, cyclone separator 2 and flying dust and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92220223 CN2136934Y (en) | 1992-09-07 | 1992-09-07 | Double-bed double-stage circulation boiling combustion boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92220223 CN2136934Y (en) | 1992-09-07 | 1992-09-07 | Double-bed double-stage circulation boiling combustion boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2136934Y true CN2136934Y (en) | 1993-06-23 |
Family
ID=33767297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92220223 Expired - Fee Related CN2136934Y (en) | 1992-09-07 | 1992-09-07 | Double-bed double-stage circulation boiling combustion boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2136934Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102676231A (en) * | 2011-03-14 | 2012-09-19 | 美特索电力公司 | An method for processing ash, and an ash processing plant |
| CN103375796A (en) * | 2012-04-13 | 2013-10-30 | 张�诚 | Particle thermal medium heater with narrow-screening fire coal circulating fluidized beds |
| CN105588120A (en) * | 2016-03-02 | 2016-05-18 | 内蒙古金土环保科技有限公司 | Desulfurization anaerobic combustion system |
-
1992
- 1992-09-07 CN CN 92220223 patent/CN2136934Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102676231A (en) * | 2011-03-14 | 2012-09-19 | 美特索电力公司 | An method for processing ash, and an ash processing plant |
| CN103375796A (en) * | 2012-04-13 | 2013-10-30 | 张�诚 | Particle thermal medium heater with narrow-screening fire coal circulating fluidized beds |
| CN105588120A (en) * | 2016-03-02 | 2016-05-18 | 内蒙古金土环保科技有限公司 | Desulfurization anaerobic combustion system |
| CN105588120B (en) * | 2016-03-02 | 2018-05-11 | 内蒙古金土环保科技有限公司 | A kind of general oxygen combustion system of desulfurization |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200975663Y (en) | Circulating fluid bed boiler by burning biomass | |
| CN108758651A (en) | A kind of circulating fluidized bed boiler suitable for waste incineration | |
| CN102927564A (en) | Method of reducing fly ash carbon content of circulating fluidized bed boiler | |
| CN211650344U (en) | Furnace using biomass as fuel | |
| CN202382230U (en) | Fluid bed furnace | |
| CN207880848U (en) | A kind of waste incineration CFB boiler that two-stage gas-solid separating device is successively arranged | |
| CN105202575B (en) | Coal dust or broken coal burning produce the method and device of high temperature hyperoxia torch ignition | |
| CN104976611A (en) | Biomass combustion boiler and combustion method thereof | |
| CN104456545A (en) | Special circulating fluidized bed boiler with flue gas recirculation | |
| CN207019075U (en) | A kind of circulating fluid bed garbage furnace | |
| CN2136934Y (en) | Double-bed double-stage circulation boiling combustion boiler | |
| CN203718753U (en) | Composite combustion device | |
| CN106287680A (en) | Small-sized biomass shaped fuel recirculating fluidized bed steam boiler | |
| CN2903707Y (en) | Moving grate layered burning furnace | |
| CN2286282Y (en) | Travelling grate stoker and pulverized-fuel complex combustion boiler | |
| CN2248290Y (en) | Biological material-burning fluidized bed boiler | |
| CN105588114A (en) | Vertical type semi-gasification biomass burning boiler | |
| CN207035086U (en) | The low nitrogen pulverized-coal fired boiler of U-shaped flame | |
| CN111765475A (en) | Circulating fluidized bed waste incineration boiler based on fire grate and working method thereof | |
| CN206001442U (en) | A kind of grate-firing combustion device of vertical lift | |
| CN109737413A (en) | A kind of high-efficiency low-pollution fire grate garbage boiler and flue gas purification system | |
| CN208025493U (en) | Ultralow nitrogen cooperates with combusting coal fines Industrial Boiler | |
| CN202203920U (en) | Efficient energy-saving environmentally-friendly pulverized coal industrial boiler | |
| CN202868673U (en) | Novel circulating fluidized bed boiler | |
| CN209638992U (en) | Fire the fluidized-bed combustion boiler of solid waste |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |