CN203927893U - Mixed fuel firing boiler - Google Patents
Mixed fuel firing boiler Download PDFInfo
- Publication number
- CN203927893U CN203927893U CN201420273037.7U CN201420273037U CN203927893U CN 203927893 U CN203927893 U CN 203927893U CN 201420273037 U CN201420273037 U CN 201420273037U CN 203927893 U CN203927893 U CN 203927893U
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- CN
- China
- Prior art keywords
- boiler
- mixed fuel
- fuel firing
- heating surface
- steelframe
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- 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 kind of mixed fuel firing boiler, belong to field of boilers, it comprises boiler heating surface, steelframe, traveling-grate stoker, secondary air system, air preheater and economizer, and described mixed fuel firing boiler is also provided with biomass feeding unit capable, coal bunker, biogas import.By technique scheme, the utility model can be realized the burning to fuel combinations such as living beings, biogas, paper mill sludges, and can realize the object of saving the energy, reducing production costs, reducing environmental pollution and creation economic benefit.
Description
Technical field
The utility model belongs to field of boilers, specifically, relates in particular to a kind of mixed fuel firing boiler.
Background technology
In paper industry and wood-working factory, produce and have the living beings waste materials such as a large amount of paper mill sludges, wood chip, sawdust at present, in the technological processes such as papermaking fermentation, also have a large amount of biogas to produce, this biolobic material waste material not only takies a large amount of spaces while depositing, and biogas is dealt with improperly and also had certain potential safety hazard.As burned with conventional coal-burning boiler, there is the phenomenons such as boiler detonation, the serious dust stratification of boiler tube bundle, make boiler time not only have very large safety factor in burning, and burn and insufficiently can not process completely waste material.Because the calorific capacity of this biolobic material waste material is higher, in addition reasonably utilization can realize and save the energy, reduces production costs, reduces environmental pollution and create the object of economic benefit.
Summary of the invention
The purpose of this utility model is to provide a kind of mixed fuel firing boiler, the burning to fuel combinations such as living beings, biogas, paper mill sludges can be realized, and the object of saving the energy, reducing production costs, reducing environmental pollution and creation economic benefit can be realized.
Mixed fuel firing boiler described in the utility model, comprise boiler heating surface, steelframe, traveling-grate stoker, secondary air system, air preheater and economizer, described steelframe is provided with boiler heating surface, boiler heating surface is provided with secondary air system, the below of boiler heating surface is provided with traveling-grate stoker, on the tail end steelframe of mixed fuel firing boiler, be provided with air preheater and economizer, described mixed fuel firing boiler is also provided with biomass feeding unit capable, coal bunker, biogas import, described coal bunker, biogas import is arranged at chain fire-gate top, above coal bunker, be provided with biomass feeding unit capable.
Say further, the top of the biomass feeding unit capable described in the utility model, coal bunker is provided with belt conveyor.
Compared with prior art, the utlity model has following beneficial effect:
1, the utility model topology layout is reasonable in design, strong to the applicability of fuel, and security of operation is stable;
2, the utility model, by adding blast furnace hearth, increases the cross section of expansion chamber, and the time of staying of material in stove lengthened, reduce flying dust amount and grey granularity, reduce flue gas flow rate, make flue dust initial gross separation, reduce the flying dust amount of convection heating surface, effectively prevented the dust stratification of convection heating surface;
3, in the utility model convection heating surface and back-end surfaces, be provided with extension type soot blower, reduce the probability of dust stratification in convection heating surface;
4, the utility model can make full use of the heat energy that biomass fuel produces, and reaches and saves the object that the energy reduces production costs.Realize the unification of economic benefit and social benefit, there is significant energy-saving effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, boiler heating surface; 2, steelframe; 3, belt conveyor; 4, biomass feeding unit capable; 5, coal bunker; 6, traveling-grate stoker; 7, biogas import; 8, secondary air system; 9, burner hearth; 10, air preheater; 11, platform staircase; 12, economizer.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment 1: a kind of mixed fuel firing boiler, comprise boiler heating surface 1, steelframe 2, traveling-grate stoker 6, secondary air system 8, air preheater 10 and economizer 12, described mixed fuel firing boiler is also provided with biomass feeding unit capable 4, coal bunker 5, biogas import 7; The top of described biomass feeding unit capable 4, coal bunker 5 is provided with belt conveyor 3; Described coal bunker 5, biogas import 7 are arranged at the top of traveling-grate stoker 6, are provided with biomass feeding unit capable 4 above coal bunker 5.
The utility model is when installing and using, bottom by steelframe 2 is weldingly fixed on the built-in fitting of ground, boiler heating surface 1 integral hoisting is on steelframe 2, belt conveyor 3 is fixed on the built-in fitting of ground according to the position of biomass feeding unit capable 4 and coal bunker 5, biomass feeding unit capable 4 is fixed by bolts on steelframe 2, coal bunker 5 is with bolts between traveling-grate stoker 6, the mode of the employing welding between traveling-grate stoker 6 and steelframe 2 is fixed, secondary air system 8 is arranged on the steelframe 2 of burning boiler by U-bolt, it between platform staircase 11 each parts, is bolt connection, and be welded on steelframe 2, economizer 12 and air preheater 10 welding are supported on steelframe 2.
Through fuel such as the paper mill sludge after pretreatment, coals, by belt conveyor 3 and coal bunker 5, on traveling-grate stoker 6, burn, the lighter weight such as wood chip, comparatively dry living beings are transported to biomass feeding unit capable 4 through belt conveyor 3 and by air blast, spray into boiler furnace 9 and burn; Biogas is sent into burner hearth 9 by the burner of burner hearth 9 bottoms and is burnt.The high-temperature flue gas that mixed fuel firing produces carries out after heat exchange through expansion chamber, boiler heating surface 1, economizer 12, air preheater 10 successively, and remaining low-temperature flue gas enters atmosphere after dedusting.
The utility model adopts the front and back arch design of optimizing, favorably situated secondary air system 8 and boiler heating surface 1, at roomy burner hearth, fully burn for 9 times, for the larger biomass fuel of the water content such as paper mill sludge, the utility model adopts higher hot blast temperature at back-end surfaces, guarantees that the biomass fuel on traveling-grate stoker 6 is fully dry, burning.
Claims (2)
1. a mixed fuel firing boiler, comprise boiler heating surface (1), steelframe (2), traveling-grate stoker (6), secondary air system (8), air preheater (10) and economizer (12), described steelframe (2) is provided with boiler heating surface (1), boiler heating surface (1) is provided with secondary air system (8), the below of boiler heating surface (1) is provided with traveling-grate stoker (6), on the tail end steelframe (2) of mixed fuel firing boiler, be provided with air preheater (10) and economizer (12), it is characterized in that: described mixed fuel firing boiler is also provided with biomass feeding unit capable (4), coal bunker (5), biogas import (7), described coal bunker (5), biogas import (7) is arranged at the top of traveling-grate stoker (6), in the top of coal bunker (5), be provided with biomass feeding unit capable (4).
2. mixed fuel firing boiler according to claim 1, is characterized in that: the top of described biomass feeding unit capable (4), coal bunker (5) is provided with belt conveyor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420273037.7U CN203927893U (en) | 2014-05-26 | 2014-05-26 | Mixed fuel firing boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420273037.7U CN203927893U (en) | 2014-05-26 | 2014-05-26 | Mixed fuel firing boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203927893U true CN203927893U (en) | 2014-11-05 |
Family
ID=51823698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420273037.7U Expired - Fee Related CN203927893U (en) | 2014-05-26 | 2014-05-26 | Mixed fuel firing boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203927893U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613465A (en) * | 2015-01-29 | 2015-05-13 | 广州市劲业节能技术有限公司 | Cofiring-type biomass fuel boiler |
| CN108045778A (en) * | 2017-11-28 | 2018-05-18 | 湖南长宏南雁锅炉修理安装有限公司 | Double fuel coal scuttle |
-
2014
- 2014-05-26 CN CN201420273037.7U patent/CN203927893U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613465A (en) * | 2015-01-29 | 2015-05-13 | 广州市劲业节能技术有限公司 | Cofiring-type biomass fuel boiler |
| CN108045778A (en) * | 2017-11-28 | 2018-05-18 | 湖南长宏南雁锅炉修理安装有限公司 | Double fuel coal scuttle |
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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: 20141105 Termination date: 20190526 |