CN204240319U - Combustion high moisture fuel steam boiler - Google Patents
Combustion high moisture fuel steam boiler Download PDFInfo
- Publication number
- CN204240319U CN204240319U CN201420610100.1U CN201420610100U CN204240319U CN 204240319 U CN204240319 U CN 204240319U CN 201420610100 U CN201420610100 U CN 201420610100U CN 204240319 U CN204240319 U CN 204240319U
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- CN
- China
- Prior art keywords
- precombustion chamber
- fuel
- burner hearth
- boiler
- high moisture
- 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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- Combustion Of Fluid Fuel (AREA)
Abstract
The utility model discloses a kind of combustion high moisture fuel steam boiler, comprise boiler body, burner hearth and charging gear, before described burner hearth, precombustion chamber is set, this precombustion chamber is communicated with the gasification combustor that is positioned at boiler body outside, the discharging opening of charging gear is communicated with precombustion chamber feeding mouth, and the below of precombustion chamber arranges high inclination-angle reciprocal grate.The high-temperature flue gas that gasification combustor produces sends the burning of burner hearth central combustion zone again to after drying the high moisture fuel in precombustion chamber, make the fuel sound of a roaring fire more complete, improve fuel burnout rate.
Description
Technical field
The utility model belongs to boiler technology field, and relating in particular to a kind of being suitable for is the steam boiler firing high-moisture biomass fuel.
Background technology
Biomass fuel boiler is developed through years of researches, be used widely in Industrial Boiler field, but the biomass fuel moisture that nearly all biomass fuel boiler uses is all about 10%, also suitable boiler type is not designed at present for high-moisture biomass fuel, and high-moisture biomass fuel, the dregs of a decoction etc. reaching more than 60% as water content are used in a large number at pharmacy, beverage industry, therefore, the boiler designing and developing applicable high-moisture biomass fuel just seems necessary.
Utility model content
The utility model, in order to solve prior art Problems existing, provides a kind of steam boiler being suitable for high moisture fuel burning.
In order to realize above object, the technical scheme that the utility model is taked is as follows: a kind of combustion high moisture fuel steam boiler, comprise boiler body, burner hearth and charging gear, before described burner hearth, precombustion chamber is set, this precombustion chamber is communicated with the gasification combustor that is positioned at boiler body outside, the discharging opening of charging gear is communicated with precombustion chamber feeding mouth, and the below of precombustion chamber arranges high inclination-angle reciprocal grate.
Compared with prior art, the utility model is owing to arranging precombustion chamber in boiler front portion, and precombustion chamber also connects gasification combustor, the high-temperature flue gas produced by gasification combustor sends the burning of burner hearth central combustion zone again to after drying the high moisture fuel in precombustion chamber, make the fuel sound of a roaring fire more complete, improve fuel burnout rate.
The utility model has the advantages that:
1, the combustion conditions of rationalization's boiler furnace, accelerates burning velocity, reduces and burns time promotion burning completely.
2, reciprocal grate leading portion adopts high inclination-angle reciprocal grate, and reinforcement fuel mixes with oxygen, is beneficial to burning.
3, at burner hearth differing heights appropriate design two, tertiary air, extend fuel in the time of staying of burner hearth, improve fuel burnout rate.
4, be connected to the high-temperature flue gas that flue extracts before energy-saving appliance bottom fire grate, accelerate to dry and pre-burning.
5, the water-cooling wall of boiler rear arch lays wall with refractory lining, refracto, improves rear arch radiant heat.
6, after taking abovementioned technology, boiler burning is up to the biomass fuel of 60% moisture.
Accompanying drawing explanation
Fig. 1 is the front view of combustion high moisture fuel steam boiler.
Fig. 2 is the side view of combustion high moisture fuel steam boiler.
Detailed description of the invention
As depicted in figs. 1 and 2, fire high moisture fuel steam boiler to be made up of boiler body 1, charging gear 2, burner hearth 3, fire grate 4, precombustion chamber 5, economizer 6, preheater 7 and gasification combustor 8 etc.
In a boiler body 1 front portion design precombustion chamber 5, this precombustion chamber 5 is positioned at burner hearth 3 front and is positioned at the top of high inclination-angle reciprocal grate 9, and the charging aperture of precombustion chamber 5 is communicated with the discharging opening of charging gear 2.Precombustion chamber does not arrange heating surface, builds ramming by laying bricks or stones form by refractory brick and refractory concrete, produces a large amount of radiant heat when this insulated design can make fuel pre-burning around precombustion chamber, strengthens again high moisture fuel further and dries and pre-burning.High moisture fuel is sent to toward precombustion chamber 5 by custom-designed charging gear 2, the high inclination-angle reciprocal grate at precombustion chamber 5 place, strengthens the disturbance of fuel.Apart from outside the First air of higher temperature below high inclination-angle reciprocal grate 9 and fire grate 4, be also connected to the high-temperature flue gas that flue extracts before energy-saving appliance, accelerate to dry and pre-burning.Boiler body 1 sidepiece peripheral hardware meter biomass gasification burner 8, biomass gasification burner produces high-temperature flue gas spirt precombustion chamber 5 Fast Heating and dries high-moisture biomass fuel, the fuel removing portion of water continues to deliver to burner hearth central combustion zone by high inclination-angle reciprocal grate 9, the water-cooling wall of boiler rear arch lays wall with refractory lining, refracto, improve rear arch radiant heat, under the effect of the forward and backward arch of boiler, utilize the further drying fuel of the radiant heat in combustion high temperature district and accelerate burning.For making fuel combustion complete, boiler furnace is designed with enough height, and devises Secondary Air 10 and tertiary air 11 at differing heights, and the oxygen entering burner hearth is adapted with needed for fuel combustion, raising fuel burnout rate.Boiler design is Natural Circulation double-barrel transverse formula water-tube boiler.Adopt Π type to arrange, Steel Structure, burner hearth and convection bank position are used as suspention, and back-end ductwork is used as supporting.
Economizer 6 is the design of single tube group, and reserve Position Design two-stage air preheater 7, more heating surface area can improve into stove air themperature.
Claims (1)
1. a combustion high moisture fuel steam boiler, comprise boiler body, burner hearth and charging gear, it is characterized in that: before described burner hearth, precombustion chamber is set, this precombustion chamber is communicated with the gasification combustor that is positioned at boiler body outside, the discharging opening of charging gear is communicated with precombustion chamber feeding mouth, and the below of precombustion chamber arranges high inclination-angle reciprocal grate;
At the differing heights of described burner hearth, Secondary Air and tertiary air are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420610100.1U CN204240319U (en) | 2014-10-21 | 2014-10-21 | Combustion high moisture fuel steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420610100.1U CN204240319U (en) | 2014-10-21 | 2014-10-21 | Combustion high moisture fuel steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204240319U true CN204240319U (en) | 2015-04-01 |
Family
ID=52769809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420610100.1U Expired - Fee Related CN204240319U (en) | 2014-10-21 | 2014-10-21 | Combustion high moisture fuel steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204240319U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247398A (en) * | 2016-10-09 | 2016-12-21 | 吉林省电力科学研究院有限公司 | A kind of blowing system for biomass boiler and fuzzy control method |
| CN109028028A (en) * | 2018-07-20 | 2018-12-18 | 北京德普新源科技发展有限公司 | A kind of biomass direct-combustion boiler forward type precombustion chamber |
-
2014
- 2014-10-21 CN CN201420610100.1U patent/CN204240319U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247398A (en) * | 2016-10-09 | 2016-12-21 | 吉林省电力科学研究院有限公司 | A kind of blowing system for biomass boiler and fuzzy control method |
| CN109028028A (en) * | 2018-07-20 | 2018-12-18 | 北京德普新源科技发展有限公司 | A kind of biomass direct-combustion boiler forward type precombustion chamber |
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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: 20150401 Termination date: 20191021 |