CN101165400A - Burner for nonflammable fuel - Google Patents
Burner for nonflammable fuel Download PDFInfo
- Publication number
- CN101165400A CN101165400A CNA2007101823307A CN200710182330A CN101165400A CN 101165400 A CN101165400 A CN 101165400A CN A2007101823307 A CNA2007101823307 A CN A2007101823307A CN 200710182330 A CN200710182330 A CN 200710182330A CN 101165400 A CN101165400 A CN 101165400A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- rare
- separator
- burner
- dense
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
- F23D1/04—Burners producing cylindrical flames without centrifugal action
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2201/00—Burners adapted for particulate solid or pulverulent fuels
- F23D2201/20—Fuel flow guiding devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention provides a low combustibility fuel firing burner that can ensure high ignition performance and combustion stability even if a gas flow rate is changed along with changes in boiler load or the like. A low combustibility fuel firing burner separates a pulverized low combustibility fuel supplied together with an air with a separator, distributing the separated fuel to a rich portion nozzle and a lean portion nozzle provided in a furnace, and burning the fuel, in which a variable control part is provided in at least one of a high-particle-concentration gas pipe extending from a downstream side of the separator and communicating with the rich portion nozzle and a low-particle-concentration gas pipe extending from the downstream side of the separator and communicating with the lean portion nozzle.
Description
Technical field
The present invention relates to a kind of burner for nonflammable fuel that is applicable to the various burners such as fine coal burning boiler that use nonflammable fuel.
The application proposes based on Japanese patent application 2006-286692 number, and its content is incorporated herein as a reference.
Background technology
In the past, nonflammable fuels such as anthracite, petroleum coke are formed tiny Powdered and in the fine coal burning boiler that uses, make to form the burner for nonflammable fuel (hereinafter referred to as " burner ") that pulverous nonflammable fuel burns.
Example as shown in Figure 4 and Figure 5, act as a fuel at the fine coal that anthracite is formed the fine powder shape and among the existing burner 10A in stove 1 internal combustion of boiler, the burner that is made of following system is arranged: be positioned at the burner central part and flow through fine coal and about 100 ℃ fine coal mist system of the fluid-mixing of primary air; Be positioned at its peripheral part and flow through the secondary ventilation system of about 300～350 ℃ auxiliary air.
The primary air system has the separator 20A that is provided with in the upstream of burner portion for the purpose that improves ignition quality.This separator 20A utilizes the principle of cyclone, can form the dense position of fuel particle (dense portion) and thin position (rare portion).
The separator downstream of primary air system is branched off into dense the nozzle 24 that imports the high high particle concentration gas of fuel particle concentration and make its burning and imports the low low particle concentration gas of fuel particle concentration and make rare the nozzle 26 of its burning.When using nonflammable fuel,, generally make burner 10A integral body towards having a down dip and being provided with in order to improve ignition quality.
And, for rare nozzle 26,, can form oxidizing atmosphere by being arranged on stove wall 2 one sides that form stove 1, constitute and prevent slag making.
Wherein, label 23 among the figure is to be used for the high particle concentration gas pipe arrangement to the high particle concentration gas of dense nozzle 24 importings from separator 20A, and the label 25 among the figure is the low particle concentration gas pipe arrangements that are used for importing to rare nozzle 26 from separator 20A low particle concentration gas.(for example opening flat 8-178210 communique (Fig. 5)) with reference to the spy
Yet,,, ignition quality and smooth combustion are affected if gas flow changes according to the change of boiler load etc. according to above-mentioned prior art.And then particularly under the situation of using nonflammable fuel, the flame between the adjacent nozzles is interfered also can make ignition quality and smooth combustion be affected.
Specify, dense rare distribution efficiency of fuel particle is by the efficient decision of separator 20A.Therefore, when the sub-load that gas delivery volume reduces, the reduction of centrifugal force also reduces the separative efficiency of separator 20A, thereby is difficult to obtain dense nozzle 24 and rare nozzle 26 desirable CONCENTRATION DISTRIBUTION rates.
And, when sub-load or in the mode of preparation burner, use under the situation of burner, owing to can produce the adverse current of gas to the negative pressure of separator 20A direction from rare nozzle pipe arrangement 25.
Because the change of above-mentioned dense rare distributive law and the adverse current of gas and then the flame between adjacent nozzles are interfered, distribute the ignition quality and the smooth combustion of fuel burner 10A of the fuel particle of nonflammable fuel to exert an influence to constituting by separator 20A, thereby a kind of burner for nonflammable fuel that addresses this problem of expectation exploitation.
Summary of the invention
The present invention is in view of the above problems and proposes that its purpose is to provide a kind of burner for nonflammable fuel, even gas flow changes according to the change of boiler load etc., also can guarantee good ignition quality and smooth combustion.
The present invention adopts following technological means in order to address the above problem.
Burner for nonflammable fuel of the present invention, separate pulverous nonflammable fuel of supplying with air by separator, and be dispensed to dense nozzle being disposed in the stove and rare nozzle and make its burning, wherein, on at least one side in the downstream of above-mentioned separator and the gas flow path that above-mentioned dense nozzle and above-mentioned rare nozzle are communicated with, the variable control mechanisms of flow path cross sectional area is set.
According to burner for nonflammable fuel of the present invention, because at least one side in the gas flow path that is communicated with from the downstream of separator and dense nozzle and rare nozzle, the variable control mechanisms of flow path cross sectional area is set, thereby can adjusts to the corresponding optimal value of operational situation with sub-load etc. by the flow path cross sectional area of appropriate change gas flow path.
In this burner for nonflammable fuel, preferably, above-mentioned variable control mechanisms, be arranged on from the movable baffle element of above-mentioned separator in above-mentioned dense nozzle supplied with the gas flow path of high particle concentration gas, thus, the flow path cross sectional area of can appropriate change supplying with the gas flow path of high particle concentration gas to dense nozzle.Thereby can supply with gas flow in the gas flow path of high particle concentration gas according to the operational situation adjustment, make the separative efficiency optimization of separator according to operational situations such as sub-loads.
In this burner for nonflammable fuel, preferably, above-mentioned variable control mechanisms, be arranged on from the flow adjustment/stop valve of above-mentioned separator in the gas flow path of the low particle concentration gas of above-mentioned rare nozzle supply, thus, the sectional area that hangs down the gas flow path of particle concentration gas to rare nozzle supply is suitably changed from standard-sized sheet to full cut-off.Thereby can perhaps when not using burner, end gas flow path according to the gas flow in the gas flow path of the low particle concentration gas of operational situation adjustment supply.
In this burner for nonflammable fuel, preferably, the wall that nonflammable fuel collided that is supplied in the above-mentioned separator is implemented wear-resistant processing, can improve the mar proof of the wall that nonflammable fuel collides thus.
Burner for nonflammable fuel of the present invention, separate pulverous nonflammable fuel of supplying with air by separator, and be dispensed to dense nozzle being disposed in the stove and rare nozzle and make its burning, wherein, the ejection angle of above-mentioned dense nozzle and above-mentioned rare nozzle is offset on above-below direction.
According to this nonflammable fuel,, can prevent that the flame between nozzle from interfering on above-below direction because the ejection angle of dense nozzle and rare nozzle is offset.
Burner for nonflammable fuel of the present invention, separate pulverous nonflammable fuel of supplying with air by separator, and be dispensed to dense nozzle being disposed in the stove and rare nozzle and make its burning, wherein, the ejection angle of above-mentioned rare nozzle is moved towards the furnace wall of horizontal direction lateral deviation.
According to this burner for nonflammable fuel,, thereby can when preventing that flame between nozzle from interfering, prevent the slag making of stove wall because the ejection angle that makes above-mentioned rare nozzle is towards the furnace wall of horizontal direction lateral deviation.
According to the invention described above, in the burner for nonflammable fuel that constitutes the fuel particle that distributes nonflammable fuel by separator, owing to can prevent according to the change of dense rare distributive law of operational situation and the adverse current of gas, thereby can guarantee good ignition quality and smooth combustion.
And, interfere by preventing the flame between adjacent nozzles, also can guarantee good ignition quality and smooth combustion.
Description of drawings
Fig. 1 represents the sectional elevation of an embodiment of burner for nonflammable fuel of the present invention.
Fig. 2 is the longitudinal section of the configuration example of the separator of presentation graphs 1 and primary air pipe arrangement.
The longitudinal section of one example of Fig. 3 nozzle angle that to be expression set dense nozzle and rare nozzle.
Fig. 4 is the sectional elevation of the existing burner for nonflammable fuel of expression.
The longitudinal section of Fig. 5 ejection angle that to be expression set dense nozzle of Fig. 4 and rare nozzle.
The specific embodiment
Below, an embodiment of burner for nonflammable fuel of the present invention is described with reference to the accompanying drawings.
The burner for nonflammable fuel that Fig. 1～Fig. 3 represents (hereinafter referred to as " burner ") 10 for example is arranged in the stove 1 of fine coal burning boiler etc.This burner 10 makes the powder body (tiny is Powdered) of the nonflammable fuel of supplying with air in stove 1 internal combustion.At this, anthracite, petroleum coke etc. are arranged as the concrete example of nonflammable fuel.
Below explanation is accepted the supply of fine coal and the burner 10 that burns, and wherein, fine coal is that the anthracite with nonflammable fuel forms tiny pulverous fuel.
The fine coal feed system roughly is positioned at the central part of burner 10, is purpose to improve ignition quality, is provided with the separator 20 of the fluid-mixing of primary air and fine coal being distributed to dense and rare portion described later.This separator 20 is a formation of utilizing the cyclone of centrifugation, is connected with the primary air pipe arrangement 22 of supplying with fluid-mixing from tangential direction in the side of urceolus 21.Be connected with high particle concentration gas pipe arrangement 23 at the small diameter part 21a place that makes urceolus 21 be narrowed to truncated conical shape, be provided with dense nozzle 24 towards stove 1 inner opening at its leading section.
And then, insert low particle concentration gas pipe arrangement 25 on the inner concentric ground of urceolus 21.Should low particle concentration gas pipe arrangement 25 from urceolus 21 to high particle concentration gas pipe arrangement 23 opposite one side-prominent and U-shaped revolutions, at its leading section to be adjacent to be provided with rare nozzle 26 with dense nozzle 24 roughly the same levels.The peristome 25a of low particle concentration gas pipe arrangement 25 on the flow direction of fluid-mixing than the connecting portion of primary air pipe arrangement 22 in the downstream (dense nozzle 24 1 sides).
The position relation of dense nozzle 24 and rare nozzle 26, rare the nozzle 26 of the low particle concentration gas of burning is configured in stove wall 2 sides that form stove 1.
In the downstream of separator 20, with gas flow path that dense nozzle 24 and rare nozzle 26 are communicated with at least one side on be provided with and make the variable variable control mechanisms of flow path cross sectional area.
In illustrated formation, with from separator 20 in dense nozzle 24 supplied with the small diameter part 21a that the high particle concentration gas pipe arrangement 23 of high particle concentration gas is connected, as the movable baffle element that can move back and forth along gas flow direction, the fuse 27 of triangular-section for example is set.This fuse 27 by in small diameter part 21a to arrow 28 described moving axially, the flow path cross sectional area that is communicated with paramount particle concentration gas pipe arrangement 23 from separator 20 is changed, thereby changes identical in fact with the flow path cross sectional area that makes high particle concentration gas pipe arrangement 23.
As movable baffle element, be not limited to illustrated fuse 27, for example be that the parts that the such flow path cross sectional area that can make high particle concentration gas pipe arrangement 23 of butterfly valve changes get final product.
Supplying with in the gas flow path of low particle concentration gas to rare nozzle 26 from separator 20, i.e. appropriate location in low particle concentration gas pipe arrangement 25, be provided as the flow adjustment/stop valves 29 such as butterfly valve of variable control mechanisms, this flow adjustment/stop valve 29 is changed to fully open position by making spool from full close position, can adjust the flow path cross sectional area that is communicated to low particle concentration gas pipe arrangement 25 from separator 20.And this flow adjustment/stop valve 29 also can make low particle concentration gas pipe arrangement 25 full cut-offs (flow path cross sectional area=0) as required.
At the peripheral part of dense nozzle 24 and rare nozzle 26, surround the auxiliary air that in stove 1, is communicated with that is provided with of two nozzles on every side and supply with stream (auxiliary air pipe arrangement) 30.This auxiliary air to be supplied with stream 30 and to be constituted the secondary ventilation system that is provided with than the air of higher temperatures in order supplying with to two nozzles 24,26.
In above-mentioned separator 20 since the fluid-mixing of supplying with from primary air pipe arrangement 22 in the inside of urceolus 21 and around low particle concentration gas pipe arrangement 25, circle round mobile, thereby be centrifugated into dense and rare portion of central part side of outer circumferential side.Its result, the high particle concentration gas of the dense portion that the particle concentration of fine coal is high flows along gas flow direction around low particle concentration gas pipe arrangement 25, by small diameter part 21a and dense nozzle 24 of high particle concentration gas pipe arrangement 23 guiding.On the other hand, the low particle concentration gas of rare portion that the particle concentration of fine coal is low, around the low particle concentration gas pipe arrangement 25 after gas flow direction flows, U-shaped turns round and enters the peristome 25a that hangs down particle concentration gas pipe arrangement 25, imports rare nozzle 26 by low particle concentration gas pipe arrangement 25.
When anthracite is formed pulverous fine coal and acts as a fuel dense rare apportionment ratio of preferred fuel particle, promptly continue good ignition quality and stable burning dense rare apportionment ratio of preferred fine coal particle, in whole fluid-mixings, 93～95% degree of fine coal and 50～55% degree of air capacity are distributed to dense nozzle 24,5～7% degree of fine coal and 45～50% degree of air capacity are distributed to rare nozzle 26.
In the burner 10 of above-mentioned formation, when the quantity delivered of mist changed according to the change of boiler load etc., because dense rare apportionment ratio of fuel particle also changes, thereby the position that can adjust fuse 27 was to keep dense rare apportionment ratio of regulation.
The words that specify, the peristome 25a of low particle concentration gas pipe arrangement 25 sets for, mistake at the mist of supplying with under the operating condition of regulations such as specified running is given the dense rare apportionment ratio that becomes expectation under the amount, thereby under the situation that the quantity delivered of mist reduces, the reduction of centrifugal force makes the fine coal that distributes to high particle concentration gas side be in the tendency of reduction.Therefore, fuse 27 is moved to the direction of arrow 28, increase the flow path cross sectional area that is communicated with paramount particle concentration gas pipe arrangement 23 from separator 20 according to the reduction of mist quantity delivered.Its result, the flow path resistance that arrives dense nozzle 24 reduces, and the coal amount that is dispensed to dense nozzle 24 sides increases, thereby dense rare apportionment ratio of fine coal can be adjusted to setting.
On the other hand, under the situation of the quantity delivered that increases mist, the increase of centrifugal force makes the fine coal that distributes paramount particle concentration gas side be in the tendency of increase.Therefore, fuse 27 is moved to the direction of arrow 28, reduce the flow path cross sectional area that is communicated with paramount particle concentration gas pipe arrangement 23 from separator 20 according to the increase of mist quantity delivered.Its result, the flow path resistance that arrives dense nozzle 24 increases, and the coal amount that is dispensed to dense nozzle 24 sides reduces, thereby also dense rare apportionment ratio of fine coal can be adjusted to setting in this case.
And the adjustment of this dense rare apportionment ratio can be undertaken by the flow adjustment/stop valve 29 of operation setting on low particle concentration gas pipe arrangement 25.
Specify, when the quantity delivered of mist reduces, operate flow adjustment/stop valve 29 to the direction of closing, the flow path cross sectional area of low particle concentration gas pipe arrangement 25 is reduced according to the reduction of mist quantity delivered.Its result, the flow path resistance that arrives rare nozzle 26 increases, and the flow path resistance that arrives dense nozzle 24 relatively reduces, thereby the coal amount that is dispensed to dense nozzle 24 sides increases, and dense rare apportionment ratio of fine coal is adjusted to setting.
On the other hand, when the quantity delivered of mist increases, operate flow adjustment/stop valve 29 to the direction of opening, the flow path cross sectional area of low particle concentration gas pipe arrangement 25 is increased according to the increase of mist quantity delivered.Its result, the flow path resistance that arrives rare nozzle 26 reduces, and the flow path resistance that arrives dense nozzle 24 relatively increases, thereby the coal amount that is dispensed to dense nozzle 24 sides reduces, and dense rare apportionment ratio of fine coal is adjusted to setting.
Like this, dense rare apportionment ratio of fine coal can be adjusted by any one party of operation fuse 27 or flow adjustment/stop valve 29, thereby is provided with at least any one party and get final product, still also can operate two sides simultaneously and adjusts.
And, for flow adjustment/stop valve 29, end low particle concentration gas pipe arrangement 25 owing to being placed on full close position, thereby for example under the situation of not using burner 10, can prevent from the adverse current of rare nozzle 26 to separator 20 sides.
Yet, in the urceolus 21 of above-mentioned separator 20, exist from the zone that particle collided of the fine coal of primary air pipe arrangement 22 high speed inflows.Therefore, for this regional internal face, for example as shown in Figure 2, form the wear-resistant wall 21b that applies wear-resistant processing as required.
At this moment, as the concrete example of preferred wear-resistant processing, for example can adopt the attaching or the wear-resistant hardening built-up welding (25Cr cast iron, CHR-3 etc.) of ceramic material.Owing to can improve mar proof by forming this wear-resistant wall 21b, even thereby the particle of fine coal collide and also can not can reduce wall thickness in early days, and can strengthen the durability of separator 20.
And, for above-mentioned dense nozzle 24 and rare nozzle 26, though rare nozzle 26 furnace wall 2 lateral deviations of waring oneself in front of a fire are moved configuration, and then preferably make rare nozzle 26 move installation to stove wall 2 lateral deviations of horizontal direction.That is, the ejection angle of rare nozzle 26, shown in Figure 1 as vertical view, from dense nozzle 24 skews of the emission direction parallel with stove wall 2, its emission direction is towards stove wall 2 sides in the horizontal direction.This moment preferred ejection angle θ h, be in the horizontal direction from dense nozzle 24 warm oneself in front of a fire furnace wall 2 inclinations oblique 10 the degree about angle.
Like this, the ejection angle that makes rare nozzle 26 is in the horizontal direction when stove wall 2 lateral deviations are moved, can prevent that the flame that takes place between the nozzle of dense adjacent nozzle 24 and rare nozzle 26 from interfering, thereby can continue to have reduced the good combustion of unburnt ingredient, and can improve ignition quality.And then the emission direction that makes rare nozzle 26 by skew is towards stove wall 2, thereby can also alleviate foreign matters such as coal ash attached to the slag making on the wall of stove 1.
And, for above-mentioned dense nozzle 24 and rare nozzle 26, though with rare nozzle 26 near the configuration of stove wall 2 sides, preferably and then as shown in Figure 3, make the ejection angle of dense nozzle 24 and rare nozzle 26 be offset installation along the vertical direction.Particularly, preferred levels is set the ejection angle of rare nozzle 26, and the ejection angle θ v court of dense nozzle 24 is had a down dip.At this moment, the preferred angle θ v of dense nozzle 24 is a benchmark during down for just (+) setting with the horizontal level, is roughly the scopes of-10 degree～30 degree, but most preferred tilt angle theta v is for 30 spending down.This is because if tilt angle theta v is set at more greatly more than 30 degree, can produces flame between then at this moment adjacent dense the nozzle 24 up and down and interfere.
Like this, be offset on above-below direction by the ejection angle that makes dense nozzle 24 and rare nozzle 26, can prevent that the flame that takes place between the nozzle of dense adjacent nozzle 24 and rare nozzle 26 from interfering, thereby can continue to have reduced the good combustion of unburnt ingredient, and can improve ignition quality.
The ejection angle of above-mentioned dense nozzle 24 and rare nozzle 26 by the skew of combined horizontal direction and above-below direction, can prevent the flame interference easilier.
According to the invention described above, in the burner 10 that constitutes the fuel particle that distributes nonflammable fuel by separator 20, operation by fuse 27, flow adjustment/stop valve 29, prevent dense rare distributive law change and back flow of gas, thereby can guarantee good ignition quality and smooth combustion based on operational situation.And, for the emission direction of dense nozzle 24 and rare nozzle 26 skew is set, prevent that the flame between adjacent nozzles from interfering, thereby also can guarantee good ignition quality and smooth combustion.
The invention is not restricted to above-mentioned embodiment, in the scope that does not break away from purport of the present invention, can suitably change.
Claims (6)
1. burner for nonflammable fuel separates pulverous nonflammable fuel of supplying with air by separator, and is dispensed to dense nozzle being disposed in the stove and rare nozzle and makes its burning, wherein,
On at least one side in the downstream of described separator and the gas flow path that described dense nozzle and described rare nozzle are communicated with, the variable control mechanisms of flow path cross sectional area is set.
2. burner for nonflammable fuel as claimed in claim 1, wherein, described variable control mechanisms is arranged on from the movable baffle element of described separator in described dense nozzle supplied with the gas flow path of high particle concentration gas.
3. burner for nonflammable fuel as claimed in claim 1, wherein, described variable control mechanisms is arranged on from the flow adjustment/stop valve of described separator in the gas flow path of the low particle concentration gas of described rare nozzle supply.
4. as any described burner for nonflammable fuel in the claim 1～3, wherein, the wall that nonflammable fuel collided that is supplied in the described separator is implemented wear-resistant processing.
5. burner for nonflammable fuel separates pulverous nonflammable fuel of supplying with air by separator, and is dispensed to dense nozzle being disposed in the stove and rare nozzle and makes its burning, wherein,
The ejection angle of described dense nozzle and described rare nozzle is offset on above-below direction.
6. burner for nonflammable fuel separates pulverous nonflammable fuel of supplying with air by separator, and is dispensed to dense nozzle being disposed in the stove and rare nozzle and makes its burning, wherein,
The ejection angle of described rare nozzle is moved towards the furnace wall of horizontal direction lateral deviation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006286692 | 2006-10-20 | ||
| JP2006286692A JP5021999B2 (en) | 2006-10-20 | 2006-10-20 | Flame retardant fuel burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101165400A true CN101165400A (en) | 2008-04-23 |
Family
ID=38804931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101823307A Pending CN101165400A (en) | 2006-10-20 | 2007-10-17 | Burner for nonflammable fuel |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20080092789A1 (en) |
| EP (1) | EP1916476A3 (en) |
| JP (1) | JP5021999B2 (en) |
| KR (1) | KR100951214B1 (en) |
| CN (1) | CN101165400A (en) |
| CA (1) | CA2608051C (en) |
| CL (1) | CL2007002944A1 (en) |
| MX (1) | MX2007012952A (en) |
| TW (1) | TWI429853B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881441B (en) * | 2010-06-18 | 2013-03-27 | 王兴道 | Gasification combustion hydrolyzing auxiliary combustion device and method of pulverized coal |
| US8882400B2 (en) * | 2010-10-29 | 2014-11-11 | General Electric Company | Solids feeder discharge port |
| GB201502891D0 (en) * | 2015-02-20 | 2015-04-08 | Doosan Babcock Ltd | Downshot burner |
| CN107152678B (en) * | 2016-03-02 | 2019-08-30 | 山西三合盛节能环保技术股份有限公司 | A kind of enhancing shunts the pulverized coal decoupling combustor and combustion method of enrichment |
| CN110043898B (en) * | 2019-04-10 | 2020-02-21 | 清华大学 | Multi-stage backflow reverse-spraying type cyclone pulverized coal burner |
| IT201900020510A1 (en) | 2019-11-06 | 2021-05-06 | Ac Boilers S P A | BURNER GROUP, METHOD FOR OPERATING SAID BURNER GROUP AND SYSTEM INCLUDING SAID BURNER GROUP |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4252069A (en) * | 1979-04-13 | 1981-02-24 | Combustion Engineering, Inc. | Low load coal bucket |
| US4448135A (en) * | 1981-11-16 | 1984-05-15 | The Babcock & Wilcox Company | Inline air-coal separator |
| US4412496A (en) * | 1982-04-27 | 1983-11-01 | Foster Wheeler Energy Corp. | Combustion system and method for a coal-fired furnace utilizing a low load coal burner |
| CA1190093A (en) * | 1982-08-06 | 1985-07-09 | Ralph D. Winship | Method of reducing no.sub.x and so.sub.x emission |
| US4570549A (en) * | 1984-05-17 | 1986-02-18 | Trozzi Norman K | Splitter for use with a coal-fired furnace utilizing a low load burner |
| US4627366A (en) * | 1985-09-16 | 1986-12-09 | The Babcock & Wilcox Company | Primary air exchange for a pulverized coal burner |
| US4655148A (en) * | 1985-10-29 | 1987-04-07 | Combustion Engineering, Inc. | Method of introducing dry sulfur oxide absorbent material into a furnace |
| JPH05649Y2 (en) * | 1986-02-21 | 1993-01-11 | ||
| JPH0512578Y2 (en) * | 1987-04-24 | 1993-03-31 | ||
| JP2641738B2 (en) * | 1987-10-07 | 1997-08-20 | バブコツク日立株式会社 | Pulverized coal combustion equipment |
| FI87246C (en) * | 1989-04-10 | 1992-12-10 | Ahlstroem Oy | PROCEDURE FOR MEASUREMENT OF INSPECTION OF FUERBRAENNINGSLUFT I EN ELDSTAD |
| JPH0348643A (en) * | 1989-07-18 | 1991-03-01 | Mitsui Toatsu Chem Inc | Production of non-cyclic ethyleneamines |
| US5363812A (en) * | 1994-02-18 | 1994-11-15 | The Babcock & Wilcox Company | Method and apparatus for controlling the bed temperature in a circulating fluidized bed reactor |
| FI96541C (en) * | 1994-10-03 | 1996-07-10 | Ahlstroem Oy | Device on a wall and method for coating the wall |
| JPH08178210A (en) * | 1994-12-26 | 1996-07-12 | Mitsubishi Heavy Ind Ltd | Burner of furnace for gyratory combustion |
| US5678499A (en) * | 1995-07-03 | 1997-10-21 | Foster Wheeler Energy Corporation | System for preheating fuel |
| US5611682A (en) * | 1995-09-05 | 1997-03-18 | Air Products And Chemicals, Inc. | Low-NOx staged combustion device for controlled radiative heating in high temperature furnaces |
| JP2995013B2 (en) * | 1997-03-31 | 1999-12-27 | 三菱重工業株式会社 | Pulverized fuel combustion burner |
| US5937772A (en) * | 1997-07-30 | 1999-08-17 | Institute Of Gas Technology | Reburn process |
| US6475267B2 (en) * | 2000-12-13 | 2002-11-05 | Foster Wheeler Energy Corporation | System and method for removing gas from a stream of a mixture of gas and particulate solids |
| JP3679998B2 (en) * | 2001-01-31 | 2005-08-03 | 三菱重工業株式会社 | Pulverized coal burner |
| CA2410725C (en) * | 2001-11-16 | 2008-07-22 | Hitachi, Ltd. | Solid fuel burner, burning method using the same, combustion apparatus and method of operating the combustion apparatus |
| US6986311B2 (en) * | 2003-01-22 | 2006-01-17 | Joel Vatsky | Burner system and method for mixing a plurality of solid fuels |
| US6923203B2 (en) * | 2003-05-29 | 2005-08-02 | Rickey E. Wark | Variable orifice valve for airstream containing particulate coal |
-
2006
- 2006-10-20 JP JP2006286692A patent/JP5021999B2/en not_active Expired - Fee Related
-
2007
- 2007-10-04 TW TW096137289A patent/TWI429853B/en not_active IP Right Cessation
- 2007-10-11 EP EP07118299A patent/EP1916476A3/en not_active Withdrawn
- 2007-10-12 CL CL200702944A patent/CL2007002944A1/en unknown
- 2007-10-16 KR KR1020070103787A patent/KR100951214B1/en active IP Right Grant
- 2007-10-16 US US11/907,652 patent/US20080092789A1/en not_active Abandoned
- 2007-10-17 CN CNA2007101823307A patent/CN101165400A/en active Pending
- 2007-10-17 CA CA2608051A patent/CA2608051C/en not_active Expired - Fee Related
- 2007-10-17 MX MX2007012952A patent/MX2007012952A/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| CL2007002944A1 (en) | 2008-05-30 |
| JP5021999B2 (en) | 2012-09-12 |
| KR20080035966A (en) | 2008-04-24 |
| CA2608051A1 (en) | 2008-04-20 |
| KR100951214B1 (en) | 2010-04-06 |
| TW200829833A (en) | 2008-07-16 |
| JP2008101883A (en) | 2008-05-01 |
| EP1916476A3 (en) | 2013-02-27 |
| EP1916476A2 (en) | 2008-04-30 |
| US20080092789A1 (en) | 2008-04-24 |
| MX2007012952A (en) | 2009-02-13 |
| TWI429853B (en) | 2014-03-11 |
| CA2608051C (en) | 2013-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4634054A (en) | Split nozzle tip for pulverized coal burner | |
| CN101165400A (en) | Burner for nonflammable fuel | |
| US4252069A (en) | Low load coal bucket | |
| US4274343A (en) | Low load coal nozzle | |
| EP2317223A1 (en) | Solid fuel burner | |
| US4434727A (en) | Method for low load operation of a coal-fired furnace | |
| JP3790489B2 (en) | Fine solid fuel combustion equipment | |
| CN105465781A (en) | Low-nitrogen-oxide-emission swirl pulverized coal burner with surrounding air | |
| CN103946634B (en) | Oil burner, solid fuel burner unit and solid fuel burning boiler | |
| CN109642728A (en) | The system for improving the dusty fuel concentration in internal combustion chamber | |
| EP3026338B1 (en) | A combustion system for a boiler | |
| CN102454984B (en) | Air channel ignition system and ignition burner under bed | |
| CN108317539A (en) | A kind of boiler secondary air subtube supply air system | |
| CA1231590A (en) | Burner for burning pulverulent fuel | |
| EP0017721B1 (en) | Low load coal bucket and method of operating a pulverised coal-fired furnace | |
| CN102278756A (en) | Dual-cyclone combustor | |
| JP5245558B2 (en) | Burner for fine fuel | |
| JP6102544B2 (en) | Coal burning burner | |
| JPS63271007A (en) | Pulverized coal burning device | |
| CN109708106A (en) | A kind of straight-through pulverized coal burner | |
| CN209295108U (en) | A kind of coal powder fired boiler burner spout structure | |
| CN214664385U (en) | Ultra-low NOXCyclone burner | |
| WO2023204102A1 (en) | Pulverized fuel burner | |
| CN114110569A (en) | Combustion system and combustion method of intermediate storage type pulverized coal fired boiler | |
| US1348561A (en) | Controlliitg proportions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20080423 |