CN204388073U - Three road air intake CFB garbage burning boiler burner hearths - Google Patents
Three road air intake CFB garbage burning boiler burner hearths Download PDFInfo
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- CN204388073U CN204388073U CN201420778815.8U CN201420778815U CN204388073U CN 204388073 U CN204388073 U CN 204388073U CN 201420778815 U CN201420778815 U CN 201420778815U CN 204388073 U CN204388073 U CN 204388073U
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- air
- burner hearth
- hearth body
- feeding device
- garbage
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Abstract
The utility model discloses a kind of three road air intake CFB garbage burning boiler burner hearths, comprise burner hearth body, burner hearth body lower inner is provided with an isobaric air compartment, and an an isobaric air compartment and igniting air channel is connected; Burner hearth body side is also arranged and the coal charging gear that communicates above air distribution plate; Burner hearth body side is also provided with garbage feeding device; Described garbage feeding device passes to above air distribution plate; Described coal charging gear and garbage feeding device are provided with air outlet; Described burner hearth body cone section region surrounding is also provided with the secondary air duct be connected with bellows, above the spout sensible burner hearth body interior air distribution plate of described secondary air duct.
Description
Technical field
It take house refuse as the boiler hearth of circulating fluidized bed of main fuel that the utility model relates to a kind of.
Background technology
Along with the development of Chinese society economy and the raising of living standards of the people, domestic waste gets more and more.The safe handling of domestic waste, has become an outstanding problem in modern social development.From the garbage disposal development course of developed country, garbage incineration technology has had harmless, decrement and the features such as resource.
Developed country due to its living standard high, rubbish quality is good, and incombustible thing is few, and moisture is few, is easy to distinguish, therefore American-European refuse-burning plant many employings fire grate combustion system.And China's most municipal refuse calorific value is low, it is good not that refuse classification work is done, and a large amount of inorganic matter even stone has also been sent to burner hearth, affects boiler efficiency, therefore have in burning process supplementary coal or other high-quality fuel, namely adopts multifuel combustion mode.Through facts have proved for many years, CFB garbage incineration technology mature and reliable, pollutant discharge amount is low, initial cost and maintenance cost low, with grate furnace ratio, there is obvious superiority.
But for high-moisture low heat value domestic waste, the design of numerous domestic boiler hearth of circulating fluidized bed does not all reach ideal effect, and the aspects such as combustion stability, ignition temperature equal control are all comparatively short of.The isobaric air compartment one road air intake that existing CFB garbage burning boiler adopts usually.Concerning coal dust as raw material common CFB boiler, this cloth wind mode can reach requirement.Then concerning high-moisture rubbish is the garbage burning boiler of fuel, a road cloth wind cannot make fuel fully contact with oxygen, makes its burning also incomplete.
Utility model content
For the technical problem of above-mentioned existence, the utility model provides a kind of three road air intake CFB garbage burning boiler burner hearths, and its combustion stability is good, and the convenient control of ignition temperature.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of three road air intake CFB garbage burning boiler burner hearths, comprise burner hearth body, burner hearth body lower inner is provided with an isobaric air compartment, and an an isobaric air compartment and igniting air channel is connected; Burner hearth body side is also arranged and the coal charging gear that communicates above air distribution plate; Burner hearth body side is also provided with garbage feeding device; Described garbage feeding device passes to above air distribution plate; Described coal charging gear and garbage feeding device are provided with air outlet; Described burner hearth body cone section region surrounding is also provided with the secondary air duct be connected with bellows, above the spout sensible burner hearth body interior air distribution plate of described secondary air duct.
Improve as one, upward, air outlet down for the charging aperture of described coal charging gear and garbage feeding device.Charging aperture is separated with air outlet, the air after fuel and heating can not be stopped mutually when entering charging gear, affecting the unobstructed of feed air-supply.And because hot-air is lighter than cold air, downward air outlet avoids hot-air to pour in down a chimney escape.
Preferred as one, described burner hearth body front and rear wall and left and right sidewall are provided with spout, and multilayer is arranged.Secondary air on different directions is in the abundant disturbance of emulsion zone, ensure that the supply of stove combustion regional oxygen amount is full and uniform, and high strength Secondary Air penetrability, combustion zone cross section below face arch and rear arch is greater than the burning-out zone cross section above it, the volume of combustion zone can be strengthened, avoid the temperature of combustion zone too high, prevent combustion zone from occurring coking, ensureing burning and heat exchange efficiency.
Usefulness of the present utility model is: the garbage burning boiler burner hearth with said structure, has three road air intakes, rubbish and coal fully can be mixed with air, burn more abundant.And can by regulating the ratio of secondary air, the uniformity of adjustment burning and temperature, realize domestic waste fuel abundant, even, stable, burn flexibly.
Accompanying drawing explanation
Fig. 1 is the structural representation of utility model.
Mark in figure: 1 burner hearth body, 2 garbage feeding devices, 3 coal charging gears, 4 secondary air ducts, 5 isobaric air compartments, 6 igniting air channels, 7 spouts, 8 air outlets, 9 air distribution plates, 10 charging apertures, 11 air outlets, 12 secondary hot-air imports, 13 hot wind inlet.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the utility model comprises burner hearth body 1, and burner hearth body 1 lower inner is provided with an isobaric air compartment 5, and an an isobaric air compartment 5 and igniting air channel 6 is connected; Burner hearth body 1 side is also arranged and coal charging gear 3 and the garbage feeding device 2 of communicating above air distribution plate 9; Described garbage feeding device 2 passes to above air distribution plate 9; Described coal charging gear 3 is provided with air outlet 11, garbage feeding device 2 is provided with air outlet 8; Described burner hearth body 1 section of cone region surrounding is also provided with secondary air duct 4, above the inner air distribution plate 9 of spout sensible burner hearth body 1 of described secondary air duct 4.Secondary air duct 4 is connected with bellows by secondary hot-air import.Upward, air outlet 11 down for the charging aperture 10 of coal charging gear 3 and garbage feeding device 2.Described burner hearth body 1 front and rear wall and left and right sidewall are provided with spout 7, and multilayer is arranged.
Burner hearth body 1 is sent on be divided into three tunnels of cold wind part after air preheater heating come from pressure fan: the first via, enters wall at the bottom of burner hearth by a hot wind inlet 13 of an isobaric air compartment 5; Second tunnel, enters burner hearth body 1 with the air outlet 8 of garbage feeding device 2 with fuel by the air outlet 11 of coal charging gear 3; 3rd tunnel, enters burner hearth by burner hearth body 1 section of the cone region secondary air duct 4 that four sides sidewall is arranged all around; During boiler operatiopn, according to rubbish supplied materials calorific value, moisture situation, fully adjustment one Secondary Air air flow rate proportioning, control combustion operating mode, ensures that hearth combustion is even; By garbage feeding clinker situation, coordinate the smooth and easy deslagging of large slag-drip opening, ensure burner hearth fluidisation stable and uniform.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. three road air intake CFB garbage burning boiler burner hearths, comprise burner hearth body, and burner hearth body lower inner is provided with an isobaric air compartment, and an an isobaric air compartment and igniting air channel is connected; Burner hearth body side is also arranged and the coal charging gear that communicates above air distribution plate; It is characterized in that: burner hearth body side is also provided with garbage feeding device; Described garbage feeding device passes to above air distribution plate; Described coal charging gear and garbage feeding device are provided with air outlet; Described burner hearth body cone section region surrounding is also provided with the secondary air duct be connected with bellows, above the spout sensible burner hearth body interior air distribution plate of described secondary air duct.
2. a kind of three road air intake CFB garbage burning boiler burner hearths according to claim 1, is characterized in that: upward, air outlet down for the charging aperture of described coal charging gear and garbage feeding device.
3. a kind of three road air intake CFB garbage burning boiler burner hearths according to claim 1, is characterized in that: described burner hearth body front and rear wall and left and right sidewall are provided with spout, and multilayer is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420778815.8U CN204388073U (en) | 2014-12-12 | 2014-12-12 | Three road air intake CFB garbage burning boiler burner hearths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420778815.8U CN204388073U (en) | 2014-12-12 | 2014-12-12 | Three road air intake CFB garbage burning boiler burner hearths |
Publications (1)
| Publication Number | Publication Date |
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| CN204388073U true CN204388073U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420778815.8U Active CN204388073U (en) | 2014-12-12 | 2014-12-12 | Three road air intake CFB garbage burning boiler burner hearths |
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| CN (1) | CN204388073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782989A (en) * | 2016-05-07 | 2016-07-20 | 宁波众茂姚北热电有限公司 | Intake method of garbage incineration boiler hearth and garbage incineration boiler equipment thereof |
-
2014
- 2014-12-12 CN CN201420778815.8U patent/CN204388073U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782989A (en) * | 2016-05-07 | 2016-07-20 | 宁波众茂姚北热电有限公司 | Intake method of garbage incineration boiler hearth and garbage incineration boiler equipment thereof |
| CN105782989B (en) * | 2016-05-07 | 2017-12-12 | 宁波众茂姚北热电有限公司 | The air inlet method and its garbage burning boiler equipment of garbage burning boiler burner hearth |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |