CN101949534A - Biomass grate firing boiler - Google Patents
Biomass grate firing boiler Download PDFInfo
- Publication number
- CN101949534A CN101949534A CN 201010500581 CN201010500581A CN101949534A CN 101949534 A CN101949534 A CN 101949534A CN 201010500581 CN201010500581 CN 201010500581 CN 201010500581 A CN201010500581 A CN 201010500581A CN 101949534 A CN101949534 A CN 101949534A
- Authority
- CN
- China
- Prior art keywords
- grate
- boiler
- water
- passage
- wall
- 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.)
- Granted
Links
- 238000010304 firing Methods 0.000 title claims abstract description 13
- 239000002028 Biomass Substances 0.000 title abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000012528 membrane Substances 0.000 claims abstract description 15
- 239000000446 fuel Substances 0.000 abstract description 17
- 238000002485 combustion reaction Methods 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000000137 annealing Methods 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Landscapes
- Solid-Fuel Combustion (AREA)
Abstract
The invention discloses a biomass grate firing boiler. The boiler comprises a movable grate, a hearth, a water jacket, secondary air, a front-wall membrane type water cooling wall, an upper drum, a lower drum, a convection bank and a rear arch, wherein the front part of the hearth of the grate firing boiler is not provided with a front arch and has a membrane type wall structure; the lower part of a feeding section at the front part of the movable grate extended out of the hearth is provided with an L-shaped sealing partition plate; the feeding section of the grate and the water jacket form a water cooling feeding passage; the two sides of the front part of the water cooling feeding passage are provided with adjustable gates; the top end of the middle part is provided with a movable folding door; and a throat part formed by the front-wall membrane type water cooling wall and the rear arch is correspondingly provided with a secondary air port. By using the unique water cooling feeding passage and a folding door sealing device, the annealing in the combustion process of a biomass fuel can be effectively prevented, the running safety of the boiler is increased, and meanwhile, the amount of the cold air which enters the hearth through the feeding passage is reduced; the front wall of the boiler has a membrane type wall structure, so that the sealing property of the boiler is improved and the heat dissipation loss is reduced; and the boiler has the advantages of safety, high efficiency and the like.
Description
Technical field
The present invention relates to a kind of living beings grate firing boiler, this boiler belongs to the biomass combustion apparatus field.
Background technology
Along with the progressively intensification of international community to the energy, environmental awareness, this emerging energy-saving and environmental protection energy of living beings is more and more paid attention to by countries in the world, majority state utilizes the development of technology for promoting the living beings modernization, has formulated developing goal and has implemented incentive policy.
At present, be that the boiler of fuel is mainly in the majority to generate electricity both at home and abroad at living beings, as straw power generation boiler, waste wood electricity generation boiler, biogas elelctrochemical power generation boiler etc., development is rapidly; The boiler that is used for factory steam or heating just just grew up in recent years, and scale is less relatively.
Because living beings have characteristics such as moisture is more, fugitive constituent is high, fuel density is little, structure is more open, so, with living beings the selection of design and running mode of the boiler grate of fuel, need to consider the combustion characteristics of variety classes living beings.And commercial Application is in the boiler of fuel with living beings, how based on fuel such as sheet, bulk, graininess, this just need increase equipment such as drying, pulverizing, granulation in the early-stage preparations process of fuel, it is higher to consume energy, invest bigger, complex process to a certain extent, has also limited the industrialized development distance of biomass boiler.
Summary of the invention
The objective of the invention is to solve the deficiency in the above-mentioned technology, a kind of living beings grate firing boiler is provided, be convenient to the bigger biomass fuel of combustion volume, and guarantee the normal operation of feeding-passage.
The present invention is achieved through the following technical solutions:
A kind of living beings grate firing boiler comprises mobile grate, burner hearth, rear arch, upper drum, convection bank and lower drum, it is characterized in that: described burner hearth front wall adopts membrane wall structure; Described mobile grate front end prolongs to feedstock direction, stretches out burner hearth, forms the fire grate feed zone, on fire grate feed zone top water collar is set, and fire grate feed zone and water collar constitute the water-cooled feeding-passage jointly; The bottom of described fire grate feed zone is provided with L type seal diaphragm.
In the technique scheme, both sides, water-cooled feeding-passage middle part are provided with flashboard, and flashboard passes water collar from the water-cooled feeding-passage outside and inserts the water-cooled feeding-passage.The top of the water-cooled feeding-passage between flashboard and burner hearth is provided with the folding door.Burner hearth aditus laryngis place correspondence in front wall membrane wall and rear arch formation is provided with secondary wind inlet.
The present invention has the following advantages and the high-lighting effect: the design of water-cooled feeding-passage, and be convenient to the biomass fuel charging of larger volume and prevent the tempering damage that combustion process produces; As a water-cooled feeding-passage part, can guarantee that the charging of living beings is connected with subsequent combustion with the feed zone of mobile grate easily; Front wall replaces face arch with film water cold wall structure, can guarantee the sealing of burner hearth, reduces radiation loss, improves boiler thermal output; The aditus laryngis place of front wall membrane wall and rear arch lays secondary wind, guarantees the abundant burning of fuel.
Description of drawings
Fig. 1 is a living beings grate firing boiler structural principle schematic diagram involved in the present invention.
Fig. 2 is the A-A cutaway view of Fig. 1, with expression.
Fig. 3 is the B-B cutaway view of Fig. 2.
Among the figure: the 1-mobile grate; The 2-water collar; The 3-seal diaphragm; The 4-flashboard; 5-folding door; 6-secondary wind inlet; The 7-membrane wall; The 8-upper drum; The 9-convection bank; The 10-lower drum; The 11-rear arch; The 12-burner hearth; The 13-feed zone.
The specific embodiment
Describe concrete structure of the present invention, operation principle and embodiment in detail below in conjunction with accompanying drawing:
Fig. 1 is a living beings grate firing boiler structural principle schematic diagram involved in the present invention.The present invention is made up of mobile grate 1, water collar 2, burner hearth 12, rear arch 11, membrane wall 7, upper drum 8, lower drum 10 and convection bank 9 etc.
Different with the conventional oven grate furnace is, burner hearth front end of the present invention is not provided with face arch, burner hearth 12 front walls adopt membrane wall 7 structures, form the front wall membrane wall, both simplified chamber structure, and front wall membrane wall 7 combines closely composition closed furnace with left and right sides water-cooling wall, guaranteed sealing, reduce and leak out and radiation loss, improve boiler thermal output, better the burning of adapted biomass fuel.
Mobile grate 1 front end of the present invention prolongs to feedstock direction, stretches out burner hearth 12, forms fire grate feed zone 13.The biomass fuel that volume is bigger is transported on the fire grate feed zone 13 by special equipment.On fire grate feed zone 13 tops water collar 2 is set, fire grate feed zone 13 and water collar 2 common formation water-cooled feeding-passages (Fig. 2 and Fig. 3).Feed cooling water in the water collar 2, reduce of the heat radiation influence of burner hearth high temperature, prevent living beings, damage feeding-passage in water-cooled feeding-passage internal combustion to feeding-passage.
Be provided with flashboard 4 in the left and right sides, water-cooled feeding-passage middle part, the height of flashboard 4 is lower than the height of water collar 2, and flashboard 4 passes water collar 2 from the water-cooled feeding-passage outside and inserts the water-cooled feeding-passage.Flashboard 4 is a rectangle sealing hole by the position of water collar 2.The size of water collar 2 and flashboard 4 can be made by the fuel specification size.Unusual in boiler operatiopn, when the flame string goes out burner hearth 12, can supply with by closing flashboard 4 fuel shutoffs, effectively prevent tempering, guarantee safe operation.
At the middle part of water-cooled feeding-passage, the top of the water-cooled feeding-passage between flashboard 4 and burner hearth 12 also is provided with folding door 55, and the door-hinge of folding door 5 is to make of pipe, is communicated with water collar 2, can play about cooling, prevents that the folding door from being damaged by high temperature.In fill process, biomass fuel need back down folding door 5 and enter follow-up feeding-passage, and then enters burner hearth 12.Being provided with of folding door 5 can reduce that excessive cold air enters burner hearth 12 from the water-cooled feeding-passage in the fill process.
Be provided with L type seal diaphragm 3 below fire grate feed zone 13, seal diaphragm 13 does not move with mobile grate 1 by the both sides welding.Air outlet is not established in the below of fire grate feed zone 13, L type seal diaphragm 3 both can prevent that the air outlet air-supply of mobile grate 1 below from sealing in fire grate feed zone 13, can also prevent that cold air from directly entering the water-cooled feeding-passage from fire grate feed zone 13, entered thereby both reduced cold wind, prevented again that biomass fuel was in water-cooled feeding-passage internal combustion.
Front wall membrane wall 7 forms aditus laryngis with rear arch 11 at burner hearth, and secondary wind inlet 6 is set at this aditus laryngis place, and secondary wind inlet 6 is that the front and back correspondence is provided with.The layout of secondary wind can make biomass combustion more abundant, complete, improves efficiency of combustion.
Biomass fuel is after the burner hearth internal combustion, and the elevated temperature heat flue gas carries out heat exchange by the convection bank 9 that is arranged between upper drum 8 and the lower drum 10, improves the heat utilization of living beings grate firing boiler.
Claims (3)
1. a living beings grate firing boiler comprises mobile grate (1), burner hearth (12), rear arch (11), upper drum (8), convection bank (9) and lower drum (10), it is characterized in that: the front wall of described burner hearth (12) adopts membrane wall (7) structure; Described mobile grate (1) front end prolongs to feedstock direction, stretches out burner hearth and forms fire grate feed zone (13), on fire grate feed zone (13) top water collar (2) is set, and fire grate feed zone (13) constitutes the water-cooled feeding-passage jointly with water collar (2); The bottom of described fire grate feed zone (13) is provided with L type seal diaphragm (3).
2. according to the described living beings grate firing boiler of claim 1, it is characterized in that: both sides, described water-cooled feeding-passage middle part are provided with flashboard (4), and flashboard (4) passes water collar (2) from the water-cooled feeding-passage outside and inserts the water-cooled feeding-passage; The top of the water-cooled feeding-passage between flashboard (4) and burner hearth (12) is provided with folding door (5).
3. according to the described living beings grate firing boiler of claim 1, it is characterized in that: the burner hearth aditus laryngis place that described membrane wall (7) and rear arch (11) form is provided with secondary wind inlet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105005817A CN101949534B (en) | 2010-09-30 | 2010-09-30 | Biomass grate firing boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105005817A CN101949534B (en) | 2010-09-30 | 2010-09-30 | Biomass grate firing boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101949534A true CN101949534A (en) | 2011-01-19 |
| CN101949534B CN101949534B (en) | 2012-05-02 |
Family
ID=43453121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105005817A Expired - Fee Related CN101949534B (en) | 2010-09-30 | 2010-09-30 | Biomass grate firing boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101949534B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261668A (en) * | 2011-05-13 | 2011-11-30 | 广州迪森热能技术股份有限公司 | Secondary air distribution system of biomass steam boiler |
| CN103411206A (en) * | 2013-08-12 | 2013-11-27 | 上海应用技术学院 | Chain grate boiler with two staggering secondary air spray pipe layers and limestone spray pipe system |
| CN107676771A (en) * | 2017-02-28 | 2018-02-09 | 浙江爱立美能源科技有限公司 | A kind of strengthening combustion system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1100218B (en) * | 1959-04-21 | 1961-02-23 | Schmidt Sche Heissdampf | Device to improve the ignition of solid fuels in furnaces with a feed movement of the fuel for steam boilers |
| CN2076197U (en) * | 1990-11-01 | 1991-05-01 | 清华大学 | Layered combustion boiler with elevated temp fly ash return device |
| WO2006117579A1 (en) * | 2005-05-02 | 2006-11-09 | FOCK, József | Method and apparatus for gasifying and burning pellets made from herbaceous plants |
| CN2903707Y (en) * | 2006-05-19 | 2007-05-23 | 申若飞 | Moving grate layered burning furnace |
| CN200949813Y (en) * | 2006-07-26 | 2007-09-19 | 大连锅炉厂 | Oil field coal-burning gas-injection boiler |
| CN101290114A (en) * | 2008-06-10 | 2008-10-22 | 杨海 | Biomass fuel boiler |
| CN101476772A (en) * | 2008-12-29 | 2009-07-08 | 哈尔滨工大格瑞环保能源科技有限公司 | Biomass molding fuel gasification combustion boiler with mechanical travelling grate |
| CN201811216U (en) * | 2010-09-30 | 2011-04-27 | 清华大学 | Biomass layer combustion boiler |
-
2010
- 2010-09-30 CN CN2010105005817A patent/CN101949534B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1100218B (en) * | 1959-04-21 | 1961-02-23 | Schmidt Sche Heissdampf | Device to improve the ignition of solid fuels in furnaces with a feed movement of the fuel for steam boilers |
| CN2076197U (en) * | 1990-11-01 | 1991-05-01 | 清华大学 | Layered combustion boiler with elevated temp fly ash return device |
| WO2006117579A1 (en) * | 2005-05-02 | 2006-11-09 | FOCK, József | Method and apparatus for gasifying and burning pellets made from herbaceous plants |
| CN2903707Y (en) * | 2006-05-19 | 2007-05-23 | 申若飞 | Moving grate layered burning furnace |
| CN200949813Y (en) * | 2006-07-26 | 2007-09-19 | 大连锅炉厂 | Oil field coal-burning gas-injection boiler |
| CN101290114A (en) * | 2008-06-10 | 2008-10-22 | 杨海 | Biomass fuel boiler |
| CN101476772A (en) * | 2008-12-29 | 2009-07-08 | 哈尔滨工大格瑞环保能源科技有限公司 | Biomass molding fuel gasification combustion boiler with mechanical travelling grate |
| CN201811216U (en) * | 2010-09-30 | 2011-04-27 | 清华大学 | Biomass layer combustion boiler |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261668A (en) * | 2011-05-13 | 2011-11-30 | 广州迪森热能技术股份有限公司 | Secondary air distribution system of biomass steam boiler |
| CN103411206A (en) * | 2013-08-12 | 2013-11-27 | 上海应用技术学院 | Chain grate boiler with two staggering secondary air spray pipe layers and limestone spray pipe system |
| CN103411206B (en) * | 2013-08-12 | 2015-07-22 | 上海应用技术学院 | Chain grate boiler with two staggering secondary air spray pipe layers and limestone spray pipe system |
| CN107676771A (en) * | 2017-02-28 | 2018-02-09 | 浙江爱立美能源科技有限公司 | A kind of strengthening combustion system |
| CN107676771B (en) * | 2017-02-28 | 2023-08-04 | 浙江浙燃能源有限公司 | Intensified combustion system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101949534B (en) | 2012-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101949534B (en) | Biomass grate firing boiler | |
| CN205579531U (en) | Environment -friendly boiler | |
| CN201066195Y (en) | Horizontal type reverse-combusting coal-firing boiler | |
| CN201811216U (en) | Biomass layer combustion boiler | |
| CN203671888U (en) | Multi-circulation heat absorption energy-saving boiler | |
| CN102635937B (en) | Water heater capable of combusting and gasifying | |
| CN201753913U (en) | Vertical highly efficient energy-saving environment-friendly boiler | |
| CN202792886U (en) | Energy-saving baking system | |
| CN203629009U (en) | Normal pressure hot water boiler for half-gasification of biomass | |
| CN202521841U (en) | Combined-combustion gasification water heater | |
| CN206958892U (en) | Biomass hot water boiler | |
| CN202253556U (en) | Horizontal counter-burning multi-pass environmentally-friendly and energy-saving boiler | |
| CN101021358B (en) | Energy conserving environmental protective non-pressure heating furnace | |
| CN202012948U (en) | Three-return counter heating type biomass super-thermal-conductive semi-gasification furnace | |
| CN205939672U (en) | Improve energy -saving pot stove of intake air temperature | |
| CN206724466U (en) | A kind of energy-saving, environmental protection boiler of thermal protection | |
| CN201476291U (en) | Hot water boiler | |
| CN104848201A (en) | Multifunctional horizontal water heating stove | |
| CN104132452A (en) | Heating stove consuming fire coal | |
| CN210153865U (en) | Energy-saving environment-friendly heating stove | |
| CN202709074U (en) | Efficient clean-burning multiple powder steam boiler | |
| CN218936653U (en) | Multi-channel cleaning furnace | |
| CN103644649A (en) | Atmospheric pressure hot water biomass boiler with semi-gasification combustion feature | |
| CN201407806Y (en) | Energy-saving, efficient and environment-friendly boiler | |
| CN207865690U (en) | Horizontal three return-stroke constant pressure boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20160930 |