CN203836927U - Biomass-fired boiler - Google Patents
Biomass-fired boiler Download PDFInfo
- Publication number
- CN203836927U CN203836927U CN201420272239.XU CN201420272239U CN203836927U CN 203836927 U CN203836927 U CN 203836927U CN 201420272239 U CN201420272239 U CN 201420272239U CN 203836927 U CN203836927 U CN 203836927U
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- CN
- China
- Prior art keywords
- boiler
- biomass
- hearth
- fired boiler
- burning
- 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
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Abstract
The utility model discloses a biomass-fired boiler and belongs to the boiler manufacturing field. The biomass-fired boiler mainly comprises a feed hopper and an incineration boiler; a hearth is arranged in the incineration boiler; boiler radiation heating surfaces are arranged at the four sides of the hearth; secondary air systems are arranged on the front and rear walls of the hearth, respectively; a chain grate stoker is arranged at the bottom of the hearth; a cyclone combustion chamber is arranged at the outlet of the hearth; a convection heating surface is arranged at the rear end of the incineration boiler; the outlet of the incineration boiler is connected with an air preheater by virtue of a smoke/air duct; soot blowers are arranged in the convection heating surface and the air preheater. The biomass-fired boiler is characterized in that steam generated by virtue of the combustion of a biomass fuel is directly applied to production, so that the energy source is saved, the production cost is reduced and the recycling of the biomass fuel is realized. The biomass-fired boiler is mainly applied to incinerating the biomass fuels.
Description
Technical field
The utility model belongs to boiler and manufactures field, specifically, relates in particular to a kind of biomass fired boiler.
Background technology
Along with oil, the minimizing of the fossil fuel reserves such as natural gas, the research and development of bioenergy technology have become one of great heat subject in the world.Biomass fuel is a kind of taking wood chip, bamboo bits, branch etc. as raw material, through graininess or the block fuel of professed machine, the compression forming of special process high pressure low temperature.Biomass fuel belongs to regenerative resource, has caloric value high, the feature of cleanliness without any pollution, but also there is no at present the burning boiler for this class A fuel A.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defect, provides one biomass fuel can be burnt completely, and the steam that burning is produced is directly used in the biomass fired boiler of production, its topology layout is reasonable in design, save the energy, reduce production costs, and reduced environmental pollution.
Described biomass fired boiler, comprises feed hopper, burning boiler; In burning boiler, be provided with burner hearth, burner hearth surrounding is furnished with boiler radiation heating-surface, the forward and backward wall of burner hearth is respectively equipped with secondary air system, burner hearth bottom is provided with traveling-grate stoker, furnace outlet is provided with whirlwind burning chamber, burning boiler rear end is provided with convection heating surface, and the outlet of burning boiler is connected with air preheater by cigarette air channel.
In described convection heating surface and air preheater, be provided with soot blower.
Compared with prior art, the beneficial effects of the utility model are:
1, according to the feature of biomass fuel, rational deployment boiler structure, at furnace outlet, whirlwind burning chamber is set, make biomass fuel and air fully mixed, it is further burnt, the more important thing is that whirlwind burning chamber can make flying dust under the effect of centrifugal force, realize secondary separation, reduced dust stratification and the wearing and tearing of back-end surfaces;
2, the secondary air system that the forward and backward wall paper of burner hearth is put has ensured that fuel has had enough time of staying in burner hearth, has ensured burning completely of fuel, and combustible major part is rested in burner hearth, has effectively avoided dust stratification and the wearing and tearing of heated surface at the end of boiler.
3, the steam that the utility model produces biomass fuel combustion is directly used in production, saves the energy, has reduced production cost, has realized recycling of biomass fuel, has realized the unification of economic benefit and social benefit, has the energy-saving effect of highly significant.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure, 1, secondary air system; 2, feed hopper; 3, traveling-grate stoker; 4, boiler radiation heating-surface; 5, air preheater; 6, cigarette air channel; 7, convection heating surface; 8, whirlwind burning chamber; 9, steelframe; 10, belt conveyor.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
A kind of biomass fired boiler, comprises feed hopper 2, burning boiler; In burning boiler, be provided with burner hearth, burner hearth surrounding is furnished with boiler radiation heating-surface 4, the forward and backward wall of burner hearth is respectively equipped with secondary air system 1, burner hearth bottom is provided with traveling-grate stoker 3, furnace outlet is provided with whirlwind burning chamber 8, burning boiler rear end is provided with convection heating surface 7, and the outlet of burning boiler is connected with air preheater 5 by cigarette air channel 6; In described convection heating surface 7 and air preheater 5, be provided with soot blower.
The utility model is in the time installing making, and steelframe 9 bottoms are weldingly fixed on the built-in fitting of ground, and boiler radiation heating-surface 4 and convection heating surface 7 are installed fixing by steelframe 9; Belt conveyor 10 is weldingly fixed on according to the position of feed hopper 2 on the built-in fitting of ground, and feed hopper 2 is bolted on traveling-grate stoker 3, and traveling-grate stoker 3 is fixed on steelframe 9, and secondary air system 1 is fixed on steelframe 9 by U-bolt.
In use, biomass fuel is delivered in feed hopper 2 by belt conveyor 10 the utility model, burns thereby enter on traveling-grate stoker 3; The high-temperature flue gas that burning produces carries out heat exchange through boiler radiation heating-surface 4, whirlwind burning chamber 8 and convection heating surface 7 successively, carries out after heat exchange with air preheater 5 finally by crossing cigarette air channel 6, and the low-temperature flue gas of generation enters atmosphere after dedusting.The feature that during for biomass fuel combustion, the bed of material is thicker, moisture is larger, air preheater 5 has designed higher hot blast temperature, to ensure being dried, burning and burning of discarded object on traveling-grate stoker 3.
Claims (2)
1. a biomass fired boiler, comprises feed hopper (2), burning boiler; It is characterized in that: in burning boiler, be provided with burner hearth, burner hearth surrounding is furnished with boiler radiation heating-surface (4), the forward and backward wall of burner hearth is respectively equipped with secondary air system (1), burner hearth bottom is provided with traveling-grate stoker (3), furnace outlet is provided with whirlwind burning chamber (8), burning boiler rear end is provided with convection heating surface (7), and the outlet of burning boiler is connected with air preheater (5) by cigarette air channel (6).
2. biomass fired boiler according to claim 1, is characterized in that: in described convection heating surface (7) and air preheater (5), be provided with soot blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420272239.XU CN203836927U (en) | 2014-05-26 | 2014-05-26 | Biomass-fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420272239.XU CN203836927U (en) | 2014-05-26 | 2014-05-26 | Biomass-fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836927U true CN203836927U (en) | 2014-09-17 |
Family
ID=51514760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420272239.XU Expired - Fee Related CN203836927U (en) | 2014-05-26 | 2014-05-26 | Biomass-fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836927U (en) |
-
2014
- 2014-05-26 CN CN201420272239.XU patent/CN203836927U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20180526 |