CN202733916U - Burning dregs fluidized bed boiler - Google Patents
Burning dregs fluidized bed boiler Download PDFInfo
- Publication number
- CN202733916U CN202733916U CN 201220402609 CN201220402609U CN202733916U CN 202733916 U CN202733916 U CN 202733916U CN 201220402609 CN201220402609 CN 201220402609 CN 201220402609 U CN201220402609 U CN 201220402609U CN 202733916 U CN202733916 U CN 202733916U
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- flue
- combustion chamber
- combustion
- chamber
- dregs
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Abstract
A burning dregs fluidized bed boiler comprises a boiler barrel, a combustion chamber and a flue. The combustion chamber and the flue are arranged on the steel frame platform. The boiler barrel is arranged above the flue. A convection bank, an economizer and an air pre-heater are successively arranged in the flue according to flow direction of gas. A screw auger feeding device is arranged on the combustion chamber. A reversal chamber is arranged between the combustion chamber and the flue. The inner portion of the combustion chamber and the inner portion of the reversal chamber are both provided with water cooling walls used for heat exchange. The burning dregs fluidized bed boiler has the advantages of being reasonable in design and in calculation and distribution of heat quantity of various portions, being high in efficiency of heat utilization, avoiding of congestion of feeding due to the face that the screw auger feeding method is applied, fitting to secondary air staged combustion, guaranteeing burnout of contained carbon of fly ash grains because of a double combustion chamber structure including a fluidized bed hearth and a burning out chamber, achieving two purposes of anti-abrasion and dust elimination due to the fact that because of a big design space of the reversal chamber as a burner gas entrance section and a low gas flow velocity, natural setting section is formed.
Description
Technical field
The utility model relates to a kind of fluidized-bed combustion boiler, specifically be a kind of combustion dregs of a decoction fluidized-bed combustion boiler take the dregs of a decoction as fuel.
Background technology
Fluidized-bed combustion boiler of the prior art mainly take combustion colm (such as mud coal, brown coal, gangue etc.) as main boiler, also is useful on the combustion rice husk.Domestic all ripe for the coal-fired fluidized bed boiler technology, but for other fuel, particularly the fluidized-bed combustion boiler take the dregs of a decoction as fuel does not also occur at present.Along with international and country on the one hand to the attention of environmental protection, on the other hand to tap a new source of energy, the promotion of regenerative resource, so boiler industry need to be developed a kind of efficient, environmental protection, energy-conservation novel replacement boiler product for answering the market demand.
The typical structure of existing fluidized-bed combustion boiler is that combustion chamber and thermal conductor are an integral body, forms a taller and bigger type of furnace; This type of furnace is feed consumption but also be not easy to operating maintenance not only; Therefore be badly in need of developing a kind of new can be take the dregs of a decoction as fuel, can overcome again the boiler of the combustion dregs of a decoction of the deficiency that existing fluidized-bed combustion boiler exists.
The utility model content
For the deficiency that above-mentioned prior art exists, the utility model provides a kind of combustion dregs of a decoction fluidized-bed combustion boiler, and it can adapt to the characteristic of dregs of a decoction fuel, can overcome again the existing existing deficiency of fluidized-bed combustion boiler, reaches the purpose of twice laid, energy-conserving and environment-protective.
The technical solution of the utility model is: a kind of combustion dregs of a decoction fluidized-bed combustion boiler, comprise drum, combustion chamber, flue, described combustion chamber, flue are installed on the steelframe platform, the top of flue is equipped with drum, be disposed with convection bank, economizer, air preheater according to flue gas flow direction in the described flue, it is characterized in that: be provided with the screw auger charging gear in described combustion chamber, between described combustion chamber and flue, also be provided with reversal chamber; All be provided with the water-cooling wall for heat exchange in combustion chamber and the reversal chamber.
Be provided with one time airduct below the fluid bed fire grate of described combustion chamber inner bottom part, the middle part, combustion chamber arranges secondary air channel.
Described combustion chamber, reversal chamber and flue bottom all are provided with ash discharging gear.
The afterbody of described flue is provided with gallet water curtain dust collector.
Be designed with the mechanical oscillation ash handling equipment in the described convection bank.
Advantage of the present utility model: 1. reasonable in design, on the basis of numerous boiler design experiences, design for the high characteristics of dregs of a decoction moisture content specially, take fluidized bed combustion and burning chamber and chimney flue type convection section assembled scheme, the each several part heat Calculation is distributed rationally, and heat utilization efficiency is high; 2. feed-type adopts special screw auger, and the volume that pitches, change blade angle screw auger are expected in course of conveying becomes greatly gradually, pine is dredged, and pressure diminishes, and prevents that effectively feed from blocking; 3. cooperate Secondary Air classification burning, adopt fluid bed burner hearth+burning chamber's double combustion chamber's structure, guarantee the fly ash particle carbon containing is burnt; 4. the furnace gas entrance is that the reversal chamber design space is large, and flue gas flow rate is low, forms the natural subsidence section, reaches two purposes of abrasionproof and dedusting; 5. the continuous ash discharge of water-cooling spiral auger is adopted in ash discharge, sealing without leakage in the ash disposal process, and environment is good; 6. the boiler evaporating convection tube all is designed with the mechanical vibrator ash handling equipment, guarantees the heating surface heat transfer efficiency, has guaranteed simultaneously boiler thermal output.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
In Fig. 1, combustion dregs of a decoction fluidized-bed combustion boiler, take heavy boiler setting to arrange, encased steel plate, it comprises drum 2, combustion chamber 3, flue 4, combustion chamber 3 and flue 4 are installed on the steelframe platform 1, the top of flue 4 is equipped with drum 2, and flue 4 is interior to be disposed with convection bank 5, economizer 6, air preheater 7 according to flue gas flow direction, and the hot water in the economizer 6 enter in the drum 2,3 are provided with screw auger charging gear 8 in the combustion chamber, also are provided with reversal chamber 9 between combustion chamber 3 and flue 4; All be provided with the water-cooling wall for heat exchange in combustion chamber 3 and the reversal chamber 9.Be provided with one time airduct 10 below the fluid bed fire grate of combustion chamber 3 inner bottom parts, 3 middle parts, combustion chamber arrange 11, wind of secondary air channel and Secondary Air all from air preheater 7.Combustion chamber 3, reversal chamber 9 and flue 4 bottoms all are provided with ash discharging gear 12.The afterbody of flue 4 is provided with gallet water curtain dust collector.Be designed with the mechanical oscillation ash handling equipment in the convection bank 5.
The workflow of combustion dregs of a decoction fluidized-bed combustion boiler is: living beings and dregs of a decoction fuel burn from the fluid bed that two screw auger charging gears 8 up and down enter the combustion chamber (being burner hearth) 3 respectively, the high-temperature flue gas that fuel combustion produces at first carries out radiation heat transfer to the water-cooling wall (being the cooling heat transferring face) of combustion chamber 3 interior layouts, then the water-cooling wall that enters 9 pairs of indoor layouts of reversal chamber (also can claim burning chamber) through preliminary high-temperature flue gas of lowering the temperature carries out heat exchange, at this moment flue gas turns to and enters flue 4, heat convection is carried out in many groups convection bank 5 to flue 4 interior layouts, last low-temperature flue gas enters gallet water curtain dust collector by economizer 6 and air preheater 7, is evacuated to chimney by air-introduced machine and discharges.The lime-ash that produces after the fuel combustion is discharged by a plurality of ash discharging gears 12 of combustion chamber (being burner hearth) 3, reversal chamber 9 and flue 4 bottoms respectively.
Claims (5)
1. one kind fires dregs of a decoction fluidized-bed combustion boiler, comprise drum (2), combustion chamber (3), flue (4), described combustion chamber (3), flue (4) are installed on the steelframe platform (1), the top of flue (4) is equipped with drum (2), be disposed with convection bank (5), economizer (6), air preheater (7) according to flue gas flow direction in the described flue (4), it is characterized in that: be provided with screw auger charging gear (8) in described combustion chamber (3), between described combustion chamber (3) and flue (4), also be provided with reversal chamber (9); All be provided with the water-cooling wall for heat exchange in combustion chamber (3) and the reversal chamber (9).
2. combustion dregs of a decoction fluidized-bed combustion boiler according to claim 1 is characterized in that: be provided with an airduct (10) below the fluid bed fire grate of described combustion chamber (3) inner bottom part, secondary air channel (11) is set in the middle part of combustion chamber (3).
3. combustion dregs of a decoction fluidized-bed combustion boiler according to claim 1 and 2 is characterized in that: all be provided with ash discharging gear (12) bottom described combustion chamber (3), reversal chamber (9) and the flue (4).
4. combustion dregs of a decoction fluidized-bed combustion boiler according to claim 1, it is characterized in that: the afterbody of described flue (4) is provided with gallet water curtain dust collector.
5. combustion dregs of a decoction fluidized-bed combustion boiler according to claim 1, it is characterized in that: described convection bank is designed with the mechanical oscillation ash handling equipment on (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402609 CN202733916U (en) | 2012-08-15 | 2012-08-15 | Burning dregs fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402609 CN202733916U (en) | 2012-08-15 | 2012-08-15 | Burning dregs fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202733916U true CN202733916U (en) | 2013-02-13 |
Family
ID=47659611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220402609 Expired - Fee Related CN202733916U (en) | 2012-08-15 | 2012-08-15 | Burning dregs fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202733916U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512029A (en) * | 2013-10-14 | 2014-01-15 | 上海交通大学 | Organic working medium boiler for combustion of coal-fired fluidized bed |
| CN106016970A (en) * | 2016-07-18 | 2016-10-12 | 周伟初 | Drying treatment system used after squeezing of soaked medicine residues |
| CN106765189A (en) * | 2017-01-13 | 2017-05-31 | 安徽未名鼎和环保有限公司 | A kind of environment-friendly type quickly processes garbage apparatus |
-
2012
- 2012-08-15 CN CN 201220402609 patent/CN202733916U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512029A (en) * | 2013-10-14 | 2014-01-15 | 上海交通大学 | Organic working medium boiler for combustion of coal-fired fluidized bed |
| CN106016970A (en) * | 2016-07-18 | 2016-10-12 | 周伟初 | Drying treatment system used after squeezing of soaked medicine residues |
| CN106765189A (en) * | 2017-01-13 | 2017-05-31 | 安徽未名鼎和环保有限公司 | A kind of environment-friendly type quickly processes garbage apparatus |
| CN106765189B (en) * | 2017-01-13 | 2018-12-07 | 安徽未名鼎和环保有限公司 | A kind of environment-friendly type quickly handles garbage apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20130815 |