CN204005961U - A kind of boiler biomass particle combustion apparatus - Google Patents
A kind of boiler biomass particle combustion apparatus Download PDFInfo
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- CN204005961U CN204005961U CN201420397454.2U CN201420397454U CN204005961U CN 204005961 U CN204005961 U CN 204005961U CN 201420397454 U CN201420397454 U CN 201420397454U CN 204005961 U CN204005961 U CN 204005961U
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Abstract
A kind of boiler biomass particle combustion apparatus, comprise burning cavity, feeding device and air-supply arrangement, the air inlet that is provided with crater, the charging aperture being communicated with feeding device on described burning cavity and is communicated with air-supply arrangement, the junction of described feeding device and charging aperture is provided with horn mouth, and described air-supply arrangement is communicated with horn mouth.The horn mouth arranging can make biological particles disperseing in burning cavity in a big way, and biological particles can not stop up at charging aperture place, meanwhile, by air-supply arrangement, be communicated with horn mouth, under the effect of wind, enter into bell-mouthed biomass fuel and can more dispersedly enter whole burning cavity, biomass fuel particle contacts with oxygen, and then can realize suspension combustion while entering in burning cavity fully; And the wind energy that air-supply arrangement send to horn mouth by air supply duct enough stops the flame tempering of the cavity that burns to feeding device, eliminated potential safety hazard.
Description
Technical field
The utility model relates to the technical field of biological particles suspension fired boiler, and concrete is a kind of boiler biomass particle combustion apparatus.
Background technology
To utilize draft and the woody biological biomass granule fuel of manufacturing be a kind of high-quality biomass fuel, and at present, China has solved the moulding problem that the Substance Transformations such as agricultural crop straw are biomass granule fuel substantially.Biomass granule fuel can be used for replacing coal, combustion oil and gas, it not only has the features such as efficiency of combustion is high, disposal of pollutants is few, and its price is well below fuel oil, also not higher than coal and natural gas, so biological particles is more suitable for the use of boiler.But because biomass granule fuel objectively exists that phosphorus content is low, ash content and the high characteristic of volatilization, in combustion process for coal or fuel oil, need more sufficient oxygen and more uniform carbon oxygen equalization space, otherwise be difficult to good combustion efficiency, and can produce a large amount of flue dust.
The combustion process of biomass granule fuel, in fact be exactly the heat chemistry dynamic response process of hydrocarbon fuel, in this process, first be that hydrocarbon fuel occurs under hot conditions that cracking generates or discharge carbon monoxide, carbon monoxide adds that under hot conditions enough oxygen mix burning occur and generate carbon dioxide, general knowledge is told us, low-carbon environment-friendly, will reduce the discharge of carbon monoxide exactly to greatest extent.Research shows, reduces the generation that the means of discharging are not inhibition carbon monoxide, but accomplishes to greatest extent completing combustion.Research and practice proves, completing combustion must possess elemental: the one, and sufficiently high temperature, the 2nd, sufficient oxygen, the 3rd, sufficient carbon oxygen mixes, the 4th, and biological particles has enough holdup times in burner hearth.And when biomass granule fuel is applied in conventional boiler, the structural design of the burner of using due to conventional boiler is unreasonable, there is following defect: 1. sufficient oxygen cannot be provided and meet sufficient carbon oxygen and mix, burning that cannot adapted biomass particle; 2. the general conveying auger that uses is directly sent biological particles into burning cavity, can cause a large amount of biological particles to be deposited in the subregion of burning cavity and cause biological particles fully not burn; 3. pay-off is constantly sent into biological particles in burning cavity, and the flame in burning cavity may be tempered in material storing box along biological particles, has potential safety hazard; 4. when using conveying auger to carry biomass granule fuel, biomass granule fuel stops up and causes the drive motors of conveying auger to damage at the discharging opening of conveying auger sometimes; 5. the general autoignition device using is that fire rod sprays duration and degree of heating in burning cavity, and in the process of burning, the flame of burning cavity may be tempered to fire rod and fire rod is damaged.The existing weak point of prior art that Here it is.
Utility model content
Technical problem to be solved in the utility model, be exactly for the existing deficiency of prior art, and provide a kind of boiler biomass particle combustion apparatus, provide sufficient oxygen that biological particles is fully burnt can to burning cavity, and can make biological particles be uniformly distributed in burning the combustion rate that improves biological particles in cavity, and the flame tempering of the cavity that can effectively prevent from burning is to feeding device.
This programme is achieved by the following technical measures: a kind of boiler biomass particle combustion apparatus, comprise burning cavity, air-supply arrangement and feeding device, on described burning cavity, be provided with crater, charging aperture and air inlet, the junction of described feeding device and charging aperture is provided with horn mouth, and described air-supply arrangement is communicated with horn mouth.
Described feeding device comprises following three kinds of situations with the syndeton of charging aperture and corresponding air supply mode:
1. the feeding device structure that is fixedly connected with or is formed in one with horn mouth described in, along the throughput direction of biological particles, the end of described feeding device is provided with at least one ventilating opening, and described ventilating opening is connected with air-supply arrangement by air supply duct.The wind of carrying by air supply duct is blown into burning cavity by biological particles, biological particles is disperseed, fully burning.
2. described in, the feeding device structure that is fixedly connected with or is formed in one with horn mouth, is provided with at least one ventilating opening on described horn mouth, and described ventilating opening is connected with air-supply arrangement by air supply duct.The wind of carrying by air supply duct is blown into burning cavity by biological particles, biological particles is disperseed, fully burning.
3. described in, feeding device is connected with horn mouth by tube connector, one end of described tube connector is connected with bell-mouthed small end, the other end is circumferentially provided with the projection being connected with feeding device, on described tube connector, be provided with at least one ventilating opening, described feeding device and projection, tube connector, horn mouth form storage wind chamber, and described storage wind chamber is communicated with air-supply arrangement by air supply duct.The wind that air supply duct is delivered to storage wind chamber divides to each ventilating opening, and the wind that enters ventilating opening is blown into burning cavity by biological particles, biological particles is disperseed, fully burning.
As preferably, the technical scheme of this programme also comprises: automatic ignition device, the end of described automatic ignition device is communicated with air-supply arrangement by air supply duct.The fire rod of automatic ignition device sprays flare to burning in cavity, and the end of described automatic ignition device is connected with air-supply arrangement by air supply duct, and the flame tempering of the cavity of can avoiding burning damages automatic ignition device to automatic ignition device.
As preferably, the technical characterictic of this programme also comprises: along the direction of feed of biological particles, the middle part of described feeding device is provided with at least one ventilating opening, and described ventilating opening is communicated with air-supply arrangement by air supply duct.The flame tempering that the ventilating opening arranging can prevent from burning in cavity, to feeding device, is played dual protective effect.
As preferably, the technical characterictic of this programme also comprises: above-mentioned crater is connected with the heating clamber of boiler by fire-outtaking tube, and described fire-outtaking tube is double-skin duct, between described double-skin duct, leaves gap, and described air-supply arrangement is communicated with gap by air supply duct.By air-supply arrangement, to air feed in gap, reduce the temperature of fire-outtaking tube, improve the service life of fire-outtaking tube, also play poly-fiery effect simultaneously.
As preferably, the technical characterictic of this programme also comprises: above-mentioned ventilating opening place is provided with the wind deflector to inner inclination.The throughput direction that the wind direction that the wind deflector arranging can stop air-supply arrangement to be carried deviates from biological particles flows, and avoids the dust that feeding device endogenous substance fuel is impacted or kicked up in biomass fuel.
The technical characterictic of this programme also comprises: the periphery of described burning cavity is disposed with reservoir chamber and burning chamber shell, the below of described burning cavity is provided with the ash disposal mouth that runs through reservoir chamber, described burning cavity is connected with sight fire tube, and described sight fire tube runs through reservoir chamber and extends to the burning chamber shell of burner.Described ash disposal mode comprises following two kinds:
1. open ash disposal mouth, artificial outwards cleaning combustion ash.
2. below ash disposal mouth, conveying auger is set, described conveying auger is communicated with ash disposal mouth, with motor, drives conveying auger Automatic clearance combustion ash.
And operating personnel can observe the fired state in burning cavity by seeing fire tube, and then control conveying capacity and the wind speed of biological particles and wind.
As preferably, the technical characterictic of this programme also comprises: on described air supply duct, be respectively arranged with volume control damper, volume control damper can be manual control or electronic control, according to demand, by controlling volume control damper, can regulate at any time air output and the wind speed of each air supply duct, make that biological particles fully mixes with oxygen, biological particles is from horn mouth to the diffusion of burning cavity etc., improve the combustion rate of biological particles and burn safer.
The technical characterictic of this programme also comprises: described feeding device comprises motor and by motor-driven conveying auger, the top of described conveying auger is provided with storage bin hopper; Described air-supply arrangement comprises blower fan and the bellows that are connected with blower fan.As required, also can be provided with two feeding devices, in burning cavity, carry biological particles simultaneously.
The beneficial effects of the utility model can be learnt from above-mentioned technical scheme: a kind of boiler biomass particle combustion apparatus, comprise burning cavity, feeding device and air-supply arrangement, the air inlet that is provided with crater, the charging aperture being communicated with feeding device on described burning cavity and is communicated with air-supply arrangement, the junction of described feeding device and charging aperture is provided with horn mouth, and described air-supply arrangement is communicated with horn mouth.The horn mouth arranging can make biological particles disperseing in burning cavity in a big way, and biological particles can not stop up at charging aperture place, meanwhile, by air-supply arrangement, be communicated with horn mouth, under the effect of wind, enter into bell-mouthed biomass fuel and can more dispersedly enter whole burning cavity, biomass fuel contacts with oxygen, and then can realize suspension combustion while entering in burning cavity fully; And the wind energy that air-supply arrangement send to horn mouth by air supply duct enough stops the flame tempering of the cavity that burns to feeding device, eliminated potential safety hazard; The air inlet arranging on burning cavity is communicated with air-supply arrangement, gives in burning cavity sufficient oxygen is provided, and reaches the best combustion condition of biological particles.
As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the specific embodiment 1;
Fig. 2 is the plan structure schematic diagram of the specific embodiment 1;
Fig. 3 is the A-A cutaway view in Fig. 2;
Fig. 4 is the B-B cutaway view in Fig. 2;
Fig. 5 is the A portion enlarged drawing in Fig. 4;
Fig. 6 is projection, tube connector and bell-mouthed syndeton schematic diagram 1;
Fig. 7 is projection, tube connector and bell-mouthed syndeton schematic diagram 2;
Fig. 8 is projection, tube connector and bell-mouthed syndeton schematic diagram 3;
Fig. 9 is the structural representation of the utility model specific embodiment 2;
In figure: 1-motor, 2-conveying auger, 3-storage bin hopper, 4-blower fan, 5-bellows, the 6-cavity that burns, 7-reservoir chamber, 8-burning chamber shell, 9-charging aperture, 10-crater, 11-fire-outtaking tube, 12-water inlet, 13-water inlet pipe, 14-delivery port, 15-outlet pipe, 16-horn mouth, 17-tube connector, 18-projection, 19-stores up wind chamber, 20-ventilating opening, 21-air supply duct, 22-air inlet, 23-gap, 24-ventilating opening, 25-air supply duct, 26-air supply duct, 27-air supply duct, 28-automatic ignition device, 29-air supply duct, 30-fixed head, 31-ash disposal mouth, 32-sees fire tube, 33-gripper shoe, 34-shaft coupling, 35-support, 36-wind deflector.
The specific embodiment
For clearly demonstrating the technical characterstic of this programme, below by the specific embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
The specific embodiment 1
As shown in Fig. 1-8, a kind of boiler biomass particle combustion apparatus, comprises burning cavity 6, feeding device, air-supply arrangement and automatic ignition device 28,
Described air-supply arrangement comprises motor 1, the blower fan 4 being driven by motor 1 and the bellows 5 that are connected with blower fan 4, and the top of described blower fan 4 and bellows 5 is fixedly connected with gripper shoe 33;
The conveying auger 2 that described feeding device comprises motor 1 and driven by motor 1, described motor 1 is connected with conveying auger 2 by shaft coupling 34, between described motor 1 and conveying auger 2, be also provided with support 35, described support 35 is fixed in gripper shoe 33 with conveying auger 2, and the top of described conveying auger 2 is provided with storage bin hopper 3; The middle part of described conveying auger is provided with ventilating opening 24, and described ventilating opening 24 is communicated with bellows 5 by air supply duct 21, and the flame tempering in the cavity that can prevent from burning is to storage bin hopper 3.
The charging aperture 9 that be provided with crater 10 on described burning cavity 6, is communicated with feeding device and the air inlet 22 being communicated with air-supply arrangement, the periphery of described burning cavity 6 is disposed with reservoir chamber 7 and shell 8, the below of described burning cavity 6 is provided with the ash disposal mouth 31 that runs through reservoir chamber 7, described burning cavity 6 is connected with sees fire tube 32, described sight fire tube 32 runs through reservoir chamber 7 and extends to the burning chamber shell 8 of burner, and described ash disposal mode comprises following two kinds:
1. open ash disposal mouth 31, artificial outwards cleaning combustion ash.
2. below ash disposal mouth 31, conveying auger is set, described conveying auger is communicated with ash disposal mouth 31, with motor, drives conveying auger Automatic clearance combustion ash.
And operating personnel can observe the fired state in burning cavity 6 by seeing fire tube 32, and then control conveying capacity and the wind speed of biological particles and wind.
The end of described automatic ignition device 28 is communicated with bellows 5 by air supply duct 29.The fire rod of automatic ignition device 28 is to the interior injection flare of burning cavity 6, the end of described automatic ignition device 28 is connected with bellows 5 by air supply duct 29, and the flame tempering of the cavity 6 of can avoiding burning is to automatic ignition device 28 and by automatic ignition device 28 damages.
The junction of described feeding device and charging aperture 9 is provided with horn mouth 16, and described air-supply arrangement is by air supply duct 21 to horn mouth 16 air-supplies, and its concrete structure is as follows:
Described conveying auger 2 is connected with horn mouth 16 by tube connector 17, the annular projection 18 that one end of described tube connector 16 is connected with the small end of horn mouth 17, the other end is circumferentially provided with is connected with conveying auger 2 inwalls, on described tube connector 17, be circumferentially evenly provided with three ventilating openings 20, described air vent 20 is circle, ellipse or half elliptic etc., the burning chamber shell of described conveying auger 2 and projection 18, tube connector 17, horn mouth 16 form storage wind chamber 19, and described storage wind chamber 19 is communicated with bellows 5 by air supply duct 21.The wind that air supply duct 21 is delivered to storage wind chamber 19 divides uniformly to each ventilating opening 20, and the wind that enters ventilating opening 20 is blown into burning cavity 6 by biological particles, biological particles is disperseed, fully burning.Described ventilating opening 20 places are provided with the wind deflector 36 to inner inclination.The direction that the wind direction that the wind deflector 36 arranging can stop air-supply arrangement to be carried deviates from horn mouth 16 flows, and avoids the dust that feeding device endogenous substance fuel is impacted or kicked up in biomass fuel.
Described crater 10 is connected with the heating clamber of boiler by fire-outtaking tube 11, and described fire-outtaking tube 11 is double-skin duct, leaves gap 23 between described double-skin duct, and described air-supply arrangement is communicated with gap 24 by air supply duct 26.Temperature in described fire-outtaking tube 11 reaches more than 1000 ℃, by air-supply arrangement to gap 24 interior air feeds, reduce the temperature in fire-outtaking tube 11, improve the service life of fire-outtaking tube 11, also play poly-fiery effect simultaneously.
The operation of this biomass particle combustion apparatus is roughly as follows: start the conveying auger 2 in blower fan 4 and feeding device, blower fan 4 enters horn mouth 16 and burning cavity 6 by air drum, biological particles and air fully mix boiling type motion under the effect that is incorporated in air-flow, start automatic ignition device 28, the biological particles burning that makes to burn in cavity 6, in combustion process, blower fan 4 continues to horn mouth 16 and the interior air blast of burning cavity 6, make biological particles continue fully to mix and to be boiling type motion and the suspension combustion step by step from the bottom of the cavity 6 that burns to top with air, the temperature of burning raises gradually, the burning of biological particles is more and more abundant, finally by crater 10, to heating clamber, alter fire, temperature in burning cavity can reach more than 1000 ℃, combustion rate can reach more than 95%, soot emissions can reach the soot emissions requirement of GB13271, the horn mouth 16 arranging can make biological particles disperseing in burning cavity in a big way, and biological particles can not stop up at charging aperture 9 places, meanwhile, by air-supply arrangement, to horn mouth 16, blow, under the effect of wind, the biomass fuel that enters into horn mouth 16 can more dispersedly enter whole burning cavity 6, biomass fuel enters burning cavity 6 and contacts with oxygen fully when interior, and then can realize suspension combustion, and the wind energy that air-supply arrangement send to horn mouth 16 enough stops the flame tempering of the cavity 6 that burns to feeding device, eliminated potential safety hazard.
On described air supply duct, be respectively arranged with volume control damper (not shown in FIG.), volume control damper can be manual control or electronic control, according to demand, by controlling volume control damper, can regulate at any time air output and the flow velocity of each air supply duct, make that biological particles fully mixes with oxygen, biological particles is from horn mouth 16 to 6 diffusions of burning cavity etc., improve the combustion rate of biological particles, and it is safer to burn.
Specific embodiment 2
Be feeding device and the syndeton of charging aperture 9 and corresponding air supply mode with the difference of the specific embodiment 1:
As shown in Figure 9: in the present embodiment, described conveying auger 2 and horn mouth 16 structure that is fixedly connected with or is formed in one, is provided with ventilating opening 20 on the outer wall of described conveying auger 2 ends, and described ventilating opening 20 is connected with bellows 5 by air supply duct 21.The wind of carrying by air supply duct 21 is blown into burning cavity 6 by biological particles, biological particles is disperseed, fully burning.Identical principle also can be provided with ventilating opening 20 on horn mouth 16, and described ventilating opening 20 is connected with bellows 5 by air supply duct 21.
In the utility model, without the technical characterictic of describing, can pass through or adopt existing techniques in realizing; do not repeat them here; certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned embodiment; the variation that those of ordinary skill in the art makes in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (10)
1. a boiler biomass particle combustion apparatus, comprise burning cavity, air-supply arrangement and feeding device, on described burning cavity, be provided with crater, charging aperture and air inlet, it is characterized in that: the junction of described feeding device and charging aperture is provided with horn mouth, described air-supply arrangement is communicated with horn mouth.
2. boiler biomass particle combustion apparatus according to claim 1, is characterized in that: described feeding device and the bell-mouthed small end structure that is fixedly connected with or is formed in one; On the end of described feeding device or horn mouth, be provided with at least one ventilating opening, described ventilating opening is communicated with air-supply arrangement by air supply duct.
3. boiler biomass particle combustion apparatus according to claim 1, it is characterized in that: described feeding device is connected with horn mouth by tube connector, one end of described tube connector is connected with bell-mouthed small end, the other end is circumferentially provided with the projection being connected with feeding device, on described tube connector, be provided with at least one ventilating opening, described feeding device and projection, tube connector, horn mouth form storage wind chamber, and described storage wind chamber is communicated with air-supply arrangement by air supply duct.
4. according to the boiler biomass particle combustion apparatus described in claim 1 or 2 or 3, it is characterized in that: also comprise automatic ignition device, described air-supply arrangement is communicated with the end of automatic ignition device by air supply duct.
5. boiler biomass particle combustion apparatus according to claim 4, it is characterized in that: described crater is connected with the heating clamber of boiler by fire-outtaking tube, described fire-outtaking tube is double-skin duct, between described double-skin duct, leaves gap, and described gap is communicated with air-supply arrangement by air supply duct.
6. boiler biomass particle combustion apparatus according to claim 1, is characterized in that: the middle part of described feeding device is provided with at least one ventilating opening, and described ventilating opening is communicated with air-supply arrangement by air supply duct.
7. according to the boiler biomass particle combustion apparatus described in claim 2 or 3 or 6, it is characterized in that: described ventilating opening place is provided with the wind deflector to inner inclination.
8.
boiler biomass particle combustion apparatus according to described in claim 5 or 6, is characterized in that: on described air supply duct, be respectively arranged with volume control damper.
9. according to the boiler biomass particle combustion apparatus described in claim 5 or 6, it is characterized in that: the periphery of described burning cavity is disposed with reservoir chamber and burning chamber shell, the below of described burning cavity arranges ash disposal mouth, described burning cavity is connected with sight fire tube, and described sight fire tube runs through reservoir chamber and extends to burning chamber shell.
10. boiler biomass particle combustion apparatus according to claim 9, is characterized in that: described feeding device comprises motor and by motor-driven conveying auger, the top of described conveying auger is provided with storage bin hopper; Described air-supply arrangement comprises blower fan and the bellows that are connected with blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397454.2U CN204005961U (en) | 2014-07-18 | 2014-07-18 | A kind of boiler biomass particle combustion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397454.2U CN204005961U (en) | 2014-07-18 | 2014-07-18 | A kind of boiler biomass particle combustion apparatus |
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| Publication Number | Publication Date |
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| CN204005961U true CN204005961U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420397454.2U Expired - Fee Related CN204005961U (en) | 2014-07-18 | 2014-07-18 | A kind of boiler biomass particle combustion apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089280A (en) * | 2014-07-18 | 2014-10-08 | 临沭县东方红锅炉制造有限公司 | Boiler biomass particle combustion device |
| CN112413631A (en) * | 2020-11-06 | 2021-02-26 | 西安力元炉窑自动化设备有限公司 | Biomass combustion method for kiln |
| CN112610965A (en) * | 2020-12-18 | 2021-04-06 | 天津水泥工业设计研究院有限公司 | Biomass combustion furnace marching type grate bed structure and biomass combustion furnace |
-
2014
- 2014-07-18 CN CN201420397454.2U patent/CN204005961U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089280A (en) * | 2014-07-18 | 2014-10-08 | 临沭县东方红锅炉制造有限公司 | Boiler biomass particle combustion device |
| CN112413631A (en) * | 2020-11-06 | 2021-02-26 | 西安力元炉窑自动化设备有限公司 | Biomass combustion method for kiln |
| CN112610965A (en) * | 2020-12-18 | 2021-04-06 | 天津水泥工业设计研究院有限公司 | Biomass combustion furnace marching type grate bed structure and biomass combustion furnace |
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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: 20141210 Termination date: 20200718 |