CN204063065U - Composite grate combustion apparatus - Google Patents
Composite grate combustion apparatus Download PDFInfo
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- CN204063065U CN204063065U CN201420592247.2U CN201420592247U CN204063065U CN 204063065 U CN204063065 U CN 204063065U CN 201420592247 U CN201420592247 U CN 201420592247U CN 204063065 U CN204063065 U CN 204063065U
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Abstract
The utility model discloses a kind of composite grate combustion apparatus, relate to biomass fuel boiler technical field.The both sides of its fire grate are respectively equipped with water-cooled header, and fire grate is made up of the reciprocal grate of leading portion and the stretched wire tension-type traveling-grate stoker of back segment, and reciprocal grate is tilting and higher than stretched wire tension-type traveling-grate stoker, the direction of motion along fuel is downward-sloping.Fuel sends into tilting reciprocating grate by batcher, to fuel preheating in addition, drying, fuel promotes progressively rolling-operation downwards by reciprocal grate, reach by height fall herein the effect that rolling falls when arriving two kinds of fire grate ladder places, extend the fuel time of staying aloft, increase the permeability of fuel, fully the combustion-supporting oxygen of mixing.Tilting reciprocating grate plays preheating and drying effect, and stretched wire tension-type traveling-grate stoker plays after-flame effect.When using multiple biomass fuel and high moisture fuel, utilizing the difference in height between two fire grates, advantageously fuel combustion, making sufficient combustion, greatly improving the burn-off rate of fuel, improve the efficiency of combustion of equipment.
Description
Technical field
The utility model belongs to biomass fuel boiler technical field, particularly relates to a kind of biomass fuel boiler of composite grate.
Background technology
As clean regenerative resource, the utilization of biomass energy has become global common recognition.With living beings proxy mineral fuel, be reduce CO
2discharge, reduces the ideal style of greenhouse gas emission.For the consideration to environment and energy resource structure aspect, country gives support on policy and popularization utilizing in biomass energy, and limit the construction of coal-fired little unit, examined a lot of biomass fuel power plant, this just makes biomass boiler have very large market.Current biomass electric power plant boiler all adopts the single vibration fire grate form of imported technology, or adopt the traveling-grate stoker of domestic routine, this combustion type is for directed fuel, and have a definite limitation to the moisture content of fuel, if select the boiler combustion equipment that can only burn a kind of biomass fuel, Power Plant Fuel will be subject to the restriction of biomass fuel turn of the market undoubtedly.So build bio-fuel power plant first it is considered that fuel risk, i.e. fuel source problem, the power plant of single-fuel is difficult to the national conditions meeting China.Another maximum feature of bio-fuel is with seasonal variations, and water content is often very high.Simultaneously conventional traveling-grate stoker fluctuation of service, poor sealing performance, leak out serious, efficiency is low; And internal fuel purchase market is usually high moisture fuel, even pluralities of fuel mixed form, this makes in actual moving process, find that fuel combustion is insufficient, and unburnt fuel is just discharged by the cinder notch that falls, fuel is combustion instability on single vibration fire grate, occurs disturbing phenomenon.Some biomass fuel also can produce slagging scorification situation in combustion, easily blocks fire grate, causes stuffy, can not oxygenating in time, and not only affect normal combustion, heat utilization efficiency is low, but also can cause boiler in the middle of using, produce the phenomenon of over-emitting black exhaust.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and adapts to domestic high-moisture biomass fuel and multiple mixing biomass fuel, can improve the composite grate combustion apparatus of efficiency of combustion.
The technical scheme that the utility model is adopted for achieving the above object is:
A kind of composite grate combustion apparatus, comprise fire grate, the both sides of fire grate are respectively equipped with left side water-cooled header and right side water-cooled header, it is characterized in that: described fire grate is made up of the reciprocal grate of leading portion and the stretched wire tension-type traveling-grate stoker of back segment, reciprocal grate, higher than stretched wire tension-type traveling-grate stoker, is sealed by furnace wall cooling between reciprocal grate and stretched wire tension-type traveling-grate stoker mutually.
Above-mentioned furnace wall cooling is connected with upper collecting chamber, lower header respectively.
In order to make fuel be detained the rational time on fire grate, described reciprocal grate is tilting reciprocating grate, and the direction of motion along fuel is downward-sloping.
In order to cloth wind is even, the adjustment air compartment that described stretched wire tension-type traveling-grate stoker bottom is provided with bellows and is connected with each other, the bottom of bellows is provided with air channel import, and bellows discharge area contains whole stretched wire tension-type traveling-grate stoker, and described adjustment air compartment is arranged in bellows.Above-mentioned adjustment air compartment is connected with each other, and fire grate is divided into multiple region, can distribute air quantity flexibly, easily to different regions, realizes overall air distribution, and cloth wind is even.First air first enters whole bellows by air channel import, and is evenly distributed in fire grate bottom, and then enter the adjustment air compartment be connected with each other, the zones of different realized fire grate is divided into distributes air quantity flexibly, easily.
Described left side water-cooled header and right side water-cooled header are arranged in outside burner hearth.
The working method of composite grate combustion apparatus of the present utility model is:
Fuel sends into tilting reciprocating grate by batcher, utilizes high-temperature flue gas radiant heat to fuel preheating in addition, drying herein.Along with reciprocal grate constantly promotes, fuel progressively downward rolling-operation, reaches by height fall herein the effect that rolling falls when arriving two kinds of fire grate ladder places, extends the fuel time of staying aloft, increase the permeability of fuel, fully mix combustion-supporting oxygen.Fuel is fallen on traveling-grate stoker and is progressively moved backward, and overall cloth wind on traveling-grate stoker, ensure that sealing property simultaneously, arranges segmentation air compartment simultaneously, can independently regulate, Thorough combustion, after-flame in this process along fire grate stroke directions, is finally discharged by the cinder notch that falls.In the whole process of fire grate burning, be its good adjusting function, two kinds of fire grate speeds of service can separate regulation, in operation, fire grate in front controls fuel quantity as pre-burning, the stocker control burnout velocity of back, owing to can distinguish adjust operation speed, can accomplish that mutual operation coordinates.It also has the feature adapting to high moisture fuel in addition, this is because leading portion fire grate adopts inclined reciprocating fire grate, fuel is advanced downwards by eminence, and the difference in height between two fire grates, this process is conducive to the oven dry of fuel, and fuel makes fuel gas permeability strengthen downwards in rolling, advantageously fuel combustion, make sufficient combustion, greatly improve the burn-off rate of fuel, improve the efficiency of combustion of equipment.
Accompanying drawing explanation
Fig. 1 is the schematic front view of the utility model composite grate combustion apparatus.
Fig. 2 is the A-A sectional view of the utility model composite grate combustion apparatus.
In figure: 1-reciprocal grate, 2-JKT traveling-grate stoker, 3-seals water-cooling wall, water-cooled header on the right side of 4-, 5-air compartment.Water-cooled header on the left of 6-.
Detailed description of the invention
Also by reference to the accompanying drawings the utility model is described further below by non-limiting embodiment.
See Fig. 1, Fig. 2, composite grate combustion apparatus, comprise fire grate, the both sides of fire grate are respectively equipped with left side water-cooled header and right side water-cooled header, fire grate is made up of the reciprocal grate of leading portion and the traveling-grate stoker of back segment, reciprocal grate is higher than stretched wire tension-type traveling-grate stoker, and sealed mutually by furnace wall cooling between reciprocal grate and stretched wire tension-type traveling-grate stoker, furnace wall cooling is connected with upper collecting chamber, lower header respectively.Wherein reciprocal grate is tilting reciprocating grate, and the direction of motion along fuel is downward-sloping.The adjustment air compartment that stretched wire tension-type traveling-grate stoker bottom is provided with bellows and is connected with each other, the bottom of bellows is provided with air channel import, and bellows discharge area contains whole stretched wire tension-type traveling-grate stoker, and described adjustment air compartment is arranged in bellows.Described left side water-cooled header and right side water-cooled header are arranged in outside burner hearth.
Cited above embodiment is only for understanding the utility model; it is not the restriction to the technical scheme described by the utility model; the those of ordinary skill of related fields; on the basis of technical scheme described in claim; can also make multiple change or distortion, all equivalent changes or distortion all should be encompassed within claims of the present utility model.
Claims (5)
1. a composite grate combustion apparatus, comprise fire grate, the both sides of fire grate are respectively equipped with left side water-cooled header and right side water-cooled header, it is characterized in that: described fire grate is made up of the reciprocal grate of leading portion and the stretched wire tension-type traveling-grate stoker of back segment, reciprocal grate, higher than stretched wire tension-type traveling-grate stoker, is sealed by furnace wall cooling between reciprocal grate and stretched wire tension-type traveling-grate stoker mutually.
2. composite grate combustion apparatus according to claim 1, is characterized in that: described furnace wall cooling is connected with upper collecting chamber, lower header respectively.
3. composite grate combustion apparatus according to claim 1, is characterized in that: described reciprocal grate is tilting reciprocating grate, and the direction of motion along fuel is downward-sloping.
4. composite grate combustion apparatus according to claim 1, it is characterized in that: the adjustment air compartment that described stretched wire tension-type traveling-grate stoker bottom is provided with bellows and is connected with each other, the bottom of bellows is provided with air channel import, bellows discharge area contains whole stretched wire tension-type traveling-grate stoker, and described adjustment air compartment is arranged in bellows.
5. composite grate combustion apparatus according to claim 1, is characterized in that: described left side water-cooled header and right side water-cooled header are arranged in outside burner hearth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420592247.2U CN204063065U (en) | 2014-10-14 | 2014-10-14 | Composite grate combustion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420592247.2U CN204063065U (en) | 2014-10-14 | 2014-10-14 | Composite grate combustion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204063065U true CN204063065U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420592247.2U Active CN204063065U (en) | 2014-10-14 | 2014-10-14 | Composite grate combustion apparatus |
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| CN (1) | CN204063065U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266201A (en) * | 2014-10-14 | 2015-01-07 | 济南锅炉集团有限公司 | Composite grate combustion equipment |
| CN111706909A (en) * | 2020-07-16 | 2020-09-25 | 卢龙县新美新型燃料有限公司 | Photo-thermal biomass heating system |
-
2014
- 2014-10-14 CN CN201420592247.2U patent/CN204063065U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266201A (en) * | 2014-10-14 | 2015-01-07 | 济南锅炉集团有限公司 | Composite grate combustion equipment |
| CN111706909A (en) * | 2020-07-16 | 2020-09-25 | 卢龙县新美新型燃料有限公司 | Photo-thermal biomass heating system |
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