CN2722043Y - Solid and liquid double-fuel supplier for circulating fluidized bed boiler simultaneously - Google Patents
Solid and liquid double-fuel supplier for circulating fluidized bed boiler simultaneously Download PDFInfo
- Publication number
- CN2722043Y CN2722043Y CN 200420031058 CN200420031058U CN2722043Y CN 2722043 Y CN2722043 Y CN 2722043Y CN 200420031058 CN200420031058 CN 200420031058 CN 200420031058 U CN200420031058 U CN 200420031058U CN 2722043 Y CN2722043 Y CN 2722043Y
- Authority
- CN
- China
- Prior art keywords
- coal
- slurry
- coal dust
- fuel
- slurries
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 title claims abstract description 15
- 239000007787 solid Substances 0.000 title claims abstract description 12
- 239000003245 coal Substances 0.000 claims abstract description 36
- 239000002817 coal dust Substances 0.000 claims abstract description 32
- 239000002002 slurry Substances 0.000 claims abstract description 17
- 239000003250 coal slurry Substances 0.000 claims description 44
- 239000000843 powder Substances 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 239000010813 municipal solid waste Substances 0.000 claims description 2
- 239000010802 sludge Substances 0.000 abstract description 12
- 239000010865 sewage Substances 0.000 abstract description 2
- 230000009977 dual effect Effects 0.000 abstract 3
- 239000011499 joint compound Substances 0.000 description 10
- 239000006004 Quartz sand Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000003203 everyday effect Effects 0.000 description 3
- 238000013467 fragmentation Methods 0.000 description 3
- 238000006062 fragmentation reaction Methods 0.000 description 3
- 238000004537 pulping Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012946 outsourcing Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Landscapes
- Liquid Carbonaceous Fuels (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
A solid and liquid double-fuel supplier for circulating fluidized bed boiler simultaneously is simultaneously equipped with a granulator with slurries added in and a screw coal feeder for amalgamating the coal dust with coal dust added in made of combustible refuse, which constitutes a boiler dual fuel supplier simultaneously able to add in two kinds of fuel-the coal dust and the slurries or to only add in the coal dust. Besides the boiler body it is also equipped with definite quantity delivering gear of the slurries, the coal dust, and the dual auxiliary feeding system with definite quantity composed of amalgamating coal dust delivering gear. The charging pressure of the slurry delivery pump of the slurries is 0.2-0.4 MPa; when the two kinds of coaly fuel-slurries and the coal dust are simultaneously added in the feeding system with definite quantity adjusts the proportion of the slurries and the coal dust between 3: 7 to 4: 6; when the coal dust and the mixed coal dust are simultaneously added in, the combustible refuse is 5-20% of the coal dust quantity added in. The dual fuel delivery device can be added in the commodity slurries. It makes use of the devil liquor slurries made of the devil liquor of the paper mill or the sludge slurries made of the sludge of the sewage treatment plant or of the paper mill.
Description
Technical field
Belong to the fuel feeder technical field of fluidized bed combustion equipment according to the International Patent Classification (IPC) this patent, specially refer to and a kind ofly can supply with solid, liquid dual-fuel device to CFBB simultaneously.
Background technology
Present CFBB all is a kind of fuel that only uses in coal or the water-coal-slurry.Use the unicity of fuel, have influence on the boiler user, can not realize handling organic matter in combustiblerefuse, waste liquid and the mud with coal-burning boiler.And realized using the CFBB that waste liquid and mud are made water-coal-slurry, exist boiler again when operation, need in burner hearth, add quartz sand and do fluidizing agent, because the hardness height of quartz sand own, in fluidization process to the hearth wall erosive wear, seriously affect the life-span of boiler, increased the problem of boiler operatiopn and maintenance cost.In addition, if when the water-coal-slurry lazy weight, boiler can not burn coal just can't be again to heat energy such as production supply steam.Coal is become water-coal-slurry,, but thisly can still not have so far simultaneously to CFBB supply solid, liquid ature of coal dual-fuel device so that the technology of making water-coal-slurry with waste liquid and mud also solves.
Summary of the invention
Can supply with solid, liquid dual-fuel device to CFBB simultaneously at the proposition of the problems referred to above this patent is a kind of, realize that this function must and supply with fuel system and transform circulating fluid bed boiler body, work out and a kind ofly can supply with solid, liquid ature of coal dual-fuel device to CFBB simultaneously.
This patent is made of the auxiliary feed system two parts of circulating fluid bed boiler body feeding device, fuel, and subsidiary process conditions is arranged.
1, circulating fluid bed boiler body feeding device
The CFBB feeding device as shown in Figure 1, by CFBB 1, water-coal-slurry pelletizer 2, mixed coal powder storehouse 3, Pulverized Coal Bin 4, screw-type coal distributor 5 is formed.In upper boiler water-coal-slurry pelletizer 2 is installed, in boiler, is added water-coal-slurry by its low pressure; Simultaneously screw-type coal distributor 5 has been installed in the boiler bottom.Two feed bins are installed on screw-type coal distributor, the powder metering device of sealing is housed under feed bin, control and add which kind of fuel, add how many which kind of fuel.The coal dust that the feed bin dress will add, the mixed coal powder that another feed bin dress is made by the combustiblerefuse after the fragmentation.Outside also kept self-conveyor feed and the feed bin that boiler is supplied with lime stone.
2, the auxiliary feed system of fuel
It constitutes the auxiliary feed system of fuel as shown in Figure 2, and the water-coal-slurry or the homemade water-coal-slurry of outsourcing is stored in the coal slurry storage tank.If by mud, former coal dust self-control water-coal-slurry, pulping equipment will be set, make water-coal-slurry with former coal dust, mud and additive.
If add simultaneously by combustiblerefuse and make mixed coal powder, want prior dry combustiblerefuse, screening, after in small, broken bits, be mixed and made into the mixed coal powder feed bin that mixed coal powder is sent into the boiler screw stoker again with coal dust, its granularity is controlled at 0～6mm, adds combustiblerefuse in 5～20% ratios that add the coal dust amount in boiler.Convert out the mixed coal powder quantity that need in boiler, add by this quantity.
Make water-coal-slurry good or outsourcing and be stored in the jar, mixing plant is installed on basin top, regularly water-coal-slurry is stirred, prevent the water-coal-slurry precipitation.Water-coal-slurry discharge gate under the basin is discharged, via the water-coal-slurry voltage supply for slurry.This pump can be screw pump, membrane pump or centrifugal mud pump, and the supporting with it constant voltage quantitative control system that also is provided with is realized the constant voltage weight feed, and water-coal-slurry is sent to upper boiler, adds boiler through the water-coal-slurry pelletizer.
3, to supplying with the double fuel process conditions in the CFBB
The pressure for slurry of pump is 0.2～0.4MPa.If when two kinds of fuel of water-coal-slurry and coal dust added boiler simultaneously, the allocation proportion of water-coal-slurry and coal dust was 3: 7 to 4: 6.The coal powder size that adds fluidized-bed combustion boiler is 0～10mm, has formed fluidizing agent with the flying dust that cyclone separator returns.Save quartz sand fluid bed furnace charge, can in CFBB, supply with water-coal-slurry and two kinds of fuel of coal or the single coal of in CFBB, supplying with simultaneously.Water-coal-slurry can be the standard merchandise water-coal-slurry, is the waste water cws that utilizes the paper mill waste liquid to make, or the sludge water-coal-slurry that utilizes the mud in the mud of municipal sewage plant and paper mill to make; Make mixed coal powder sneaking into coal dust after also with combustiblerefuse drying, fragmentation outside the coal dust, send into the boiler furnace burning.
Description of drawings
Fig. 1: a kind of flow chart from the double fuel method to CFBB that supply with;
Fig. 2: double fuel CFBB feeding device figure.
The specific embodiment
Certain paper mill need 2 35 tons/time steam boiler, this paper mill produces and produces 45 tons in mud, 50 tons of combustiblerefuses (mainly being plastics) every day.Two 35 tons of this paper mill/time recirculating fluidized bed steam boiler solid, liquid double fuel feedway of this patent has been installed.1 pulping tank and 1 slurry can are installed in this paper mill, and the same coal dust of paper mill sludge, paper waste, additive are added pulping tank in proportion, make the sludge water-coal-slurry that calorific value is 17000～19000KJ/Kg, sludge water-coal-slurry are transported in the slurry can store.
The combustiblerefuse that produces in the paper production is utilized residual heat from boiler fume oven dry, screening by drying plant, be mixed and made into mixed coal powder with coal dust again after fragmentation, its granularity is 0～6mm.Coal dust, mixed coal powder are delivered in the coal bunker and mixed coal powder storehouse on the boiler by conveying equipment, sent into the burner hearth internal combustion by screw-type coal distributor.Two feed bin bottoms the powder doser of sealing is housed, is equipped with the quantitative control system of control screw stoker, constituted the reinforced control system of solid coal fuel, realize amounting to the various coal dust amounts of adding and the dosing of each fuel charge amount.Water-coal-slurry is delivered to from slurry can on the water-coal-slurry pelletizer of upper boiler by the 0.3MPa screw pump, adds the sludge water-coal-slurry of institute's required amount by it in boiler.Be provided with constant voltage weight feed control system and metering system before and after screw pump, the metering control system of these two kinds of fuel is regulated and control by computer, according to the requirement adding water-coal-slurry and the various coal dust of boiler combustion technology.The supply ratio of sludge water-coal-slurry and coal dust is 4: 6.And coal dust Central Plains coal powder size is 0～8mm, and quantity delivered is total fuel quantity weight ratio 53%, and mixed coal powder is total fuel quantity weight ratio 47%, and the combustiblerefuse weight ratio is 24% in mixed coal powder, and boiler work 24 hours every days like this is the paper mill steam supply.The time that has 14 hours every day is to supply with sludge water-coal-slurry and coal dust in boiler simultaneously, these two kinds of atures of coal solid and liquid fuel when double fuel is supplied with, all the other 10 hours were a kind of fuel of former coal dust, 25 tons of sludge water-coal-slurries burn every day, 60 tons of burning mixed coal powders, burn 52 tons of former coal dusts, 15 tons of burning combustiblerefuses, outside 63 tons of former coal dusts of burning.Feeding device operates steadily reliably, boiler for producing is normal.
This paper mill CFBB has adopted the double fuel feeding device, solved the processing difficult problem of this factory's paper mill sludge and combustiblerefuse, and the disposal cost of having saved mud and rubbish, saved the expense of the quartz sand that independent burning sludge water-coal-slurry need add, reduce the wearing and tearing of boiler internal, prolonged boiler service life.
Claims (2)
1, a kind of can it is characterized in that forming simultaneously to CFBB supply solid, liquid dual-fuel device by circulating fluid bed boiler body feeding device and the auxiliary feeding system of fuel; Described circulating fluid bed boiler body feeding device is water-coal-slurry pelletizer low pressure to be installed on the top of CFBB supply with water-coal-slurry; The quantitative screw-type coal distributor of two feed bins of the mixed coal powder that adds coal dust, made by incendivity rubbish has been installed simultaneously in the bottom of CFBB, two feed bin bottoms sealing powder is installed and anticipates amount feeding device, constituted the circulating fluid bed boiler body feeding device that can in boiler, add coal dust and these two kinds of fuel of water-coal-slurry simultaneously or only add a kind of fuel of coal.
2, can supply with solid, liquid dual-fuel device to CFBB simultaneously according to claim 1 is described, it is characterized in that the auxiliary feeding system of described fuel comprises water-coal-slurry charging mechanism and the auxiliary feeding machanism of coal dust; Its water-coal-slurry charging mechanism is that mixing plant is installed on coal slurry basin top, and the voltage supply slurry supply pump is installed in coal slurry basin bottom, and water-coal-slurry pelletizer and constant voltage quantitative control system are installed in voltage supply slurry supply pump bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420031058 CN2722043Y (en) | 2004-04-06 | 2004-04-06 | Solid and liquid double-fuel supplier for circulating fluidized bed boiler simultaneously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420031058 CN2722043Y (en) | 2004-04-06 | 2004-04-06 | Solid and liquid double-fuel supplier for circulating fluidized bed boiler simultaneously |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2722043Y true CN2722043Y (en) | 2005-08-31 |
Family
ID=35012414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420031058 Expired - Fee Related CN2722043Y (en) | 2004-04-06 | 2004-04-06 | Solid and liquid double-fuel supplier for circulating fluidized bed boiler simultaneously |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2722043Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032554A (en) * | 2010-12-13 | 2011-04-27 | 青岛海众环保锅炉股份有限公司 | Coal water slurry and coal water slurry powder combusting hybrid boiler |
| CN114923170A (en) * | 2022-06-17 | 2022-08-19 | 神华准格尔能源有限责任公司 | Method for adjusting bed temperature of circulating fluidized bed boiler |
| CN116481021A (en) * | 2023-05-17 | 2023-07-25 | 哈尔滨红光锅炉总厂有限责任公司 | Environment-friendly energy-saving circulating fluidized bed boiler capable of respectively burning coal and coal water slurry |
-
2004
- 2004-04-06 CN CN 200420031058 patent/CN2722043Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032554A (en) * | 2010-12-13 | 2011-04-27 | 青岛海众环保锅炉股份有限公司 | Coal water slurry and coal water slurry powder combusting hybrid boiler |
| CN114923170A (en) * | 2022-06-17 | 2022-08-19 | 神华准格尔能源有限责任公司 | Method for adjusting bed temperature of circulating fluidized bed boiler |
| CN116481021A (en) * | 2023-05-17 | 2023-07-25 | 哈尔滨红光锅炉总厂有限责任公司 | Environment-friendly energy-saving circulating fluidized bed boiler capable of respectively burning coal and coal water slurry |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11279894B2 (en) | Universal feeder for gasification reactors | |
| CN110835568B (en) | Preparation method of sludge derived fuel for hazardous waste disposal | |
| CN106966618A (en) | A kind of method of cement kiln synergic processing house refuse | |
| CN1245489C (en) | Method and device for preparation of fuels | |
| CN1301382C (en) | Method for using solid/liquid coal double fuel for circulation fluidized bed boiler | |
| CN100408918C (en) | Method for dealing with discharge liquid from paper, leather and dye printing industry using circulating fluidized combustion method | |
| CN2722043Y (en) | Solid and liquid double-fuel supplier for circulating fluidized bed boiler simultaneously | |
| CN206666469U (en) | Recycle the feeding system of carbon in slag from gasifying furnace | |
| CN101353597A (en) | Simultaneous gasification of coals of widely differing degrees of coalification in entrained flow gasification | |
| CN113339809A (en) | Feeding system for household garbage, general industrial solid waste and sludge collaborative incineration | |
| JP5456342B2 (en) | Method for producing waste oil-based solid fuel and method for using the waste oil-based solid fuel | |
| JP5456341B2 (en) | Method for producing waste oil-based solid fuel and method for using the waste oil-based solid fuel | |
| US4747548A (en) | Process for producing a high concentration coal-water slurry | |
| CN201395579Y (en) | Material feeding tank capable of synchronously providing coal to a plurality of gasification furnaces | |
| CN102268306A (en) | Biomass fuel and technological process for processing the biomass fuel | |
| CN102980195B (en) | Method for treating coal chemical gasified slag | |
| CN101747941B (en) | Dry and wet double-purpose feeding system for gasifying equipment | |
| CN216346363U (en) | Pebble coal recycling system for medium-speed coal mill of power station boiler | |
| CN201526957U (en) | Industrial furnace fuel pneumatic conveying and blowing burning device | |
| CN218222211U (en) | Compatibility system of bubbling fluidized bed fuel | |
| CN220624021U (en) | Multi-fuel controllable blending device for circulating fluidized bed boiler | |
| Smith | Co-utilisation of coal and other fuels in cement kilns | |
| CN214275763U (en) | Feeding device for dry sludge mixed incineration | |
| CN209276472U (en) | A kind of device of fine particles containing carbon and dregs of fat mixing granulation recycling | |
| CN202048581U (en) | Fuel matching device for stable operation of fluidized mix combustion furnace of three wastes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHANG DAWEI Free format text: FORMER OWNER: SHENYANG DAIWEI INTERNATIONAL MACHINERY + ELECTRONICS CO., LTD. Effective date: 20060217 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060217 Address after: 110004, Heping District, Heping District, Liaoning, 200, Shenyang embroidery garden 1-6-2-1 Patentee after: Zhang Dawei Address before: 110004 Liaoning Province, Shenyang City District West style 233 No. Patentee before: Daiwei International Electromechanical Equipment Co., Ltd., Shenyang |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050831 Termination date: 20110406 |