CN104976611A - Biomass combustion boiler and combustion method thereof - Google Patents
Biomass combustion boiler and combustion method thereof Download PDFInfo
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- CN104976611A CN104976611A CN201510358235.2A CN201510358235A CN104976611A CN 104976611 A CN104976611 A CN 104976611A CN 201510358235 A CN201510358235 A CN 201510358235A CN 104976611 A CN104976611 A CN 104976611A
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- Prior art keywords
- air
- boiler
- biomass
- drum
- fire grate
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- 239000002028 Biomass Substances 0.000 title claims abstract description 38
- 238000002485 combustion reactions Methods 0.000 title claims abstract description 31
- 238000009841 combustion method Methods 0.000 title claims abstract description 9
- 239000003570 air Substances 0.000 claims abstract description 56
- 239000000446 fuels Substances 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000000463 materials Substances 0.000 claims description 26
- 239000000843 powders Substances 0.000 abstract description 3
- 238000004642 transportation engineering Methods 0.000 abstract description 3
- 239000002699 waste materials Substances 0.000 abstract description 3
- 238000000034 methods Methods 0.000 abstract description 2
- 238000010521 absorption reactions Methods 0.000 abstract 1
- 230000002441 reversible Effects 0.000 abstract 1
- 235000019553 satiation Nutrition 0.000 abstract 1
- 239000000686 essences Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound 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[O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003546 flue gases Substances 0.000 description 2
- 239000002956 ash Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000005516 engineering processes Methods 0.000 description 1
- 239000007789 gases Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reactions Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Abstract
Description
Technical field
The present invention relates to boiler, particularly relate to a kind of living beings that utilize as the boiler of fuel and combustion method thereof.
Background technology
Biomass combustion boiler, as the term suggests the boiler being exactly using biomass energy as fuel, its combustion apparatus adopted is reciprocating fire grate.
Concrete combustion process is: fuel sends into furnace top bin by conveyer, then sends into burner hearth by screw(-type) feeder, is evenly scattered on fire grate.When fuel is sent into burner hearth by screw(-type) feeder, due to high-temperature flue gas and a wind action progressively preheating, dry, catch fire, burn, separate out a large amount of volatile matter in this process, burning acutely.After the high-temperature flue gas produced washes away the main heating surface of boiler, enter heated surface at the end of boiler economizer and air preheater, then enter deduster, enter air finally by chimney.Move to back of furnace row in the fuel limit of not gasifying, until after-flame, finally remaining a small amount of lime-ash fall into fire grate below except cinder notch.
At present, the efficiency of this traditional type biomass combustion boiler is general all about 80%, for making the more abundant of burning, usually adopting and strengthening boiler model (size).According to market survey statistics, the boiler efficiency of maximum model is also about 88%.
Summary of the invention
The object of the present invention is to provide a kind of, that increasing temperature and pressure fast, sufficient combustion, efficiency are high biomass combustion boiler.
The present invention also provides a kind of combustion method based on above-mentioned biomass combustion boiler.
For reaching above object, the present invention adopts following technical scheme.
A kind of biomass combustion boiler, is characterized in that, comprising: fire box, be arranged on the upper drum in fire box, lower drum, material blanking tube, warm-air pipe, fire grate and air compartment; Connected by convection current endothermic tube between described upper drum, lower drum; It is characterized in that: on material blanking tube, be connected with high-pressure air tube, between the outlet of material blanking tube and fire grate, there is difference in height.
Further illustrating as such scheme, described high-pressure air tube air outlet and material blanking tube export and connect together, and high-pressure air tube air outlet is positioned at material blanking tube outlet downside.
Further illustrating as such scheme, the difference in height between described material blanking tube outlet and fire grate is not less than 50cm.
Further illustrating as such scheme, described upper drum is arranged on fire box top.
Further illustrating as such scheme, described lower drum to be positioned at above material blanking tube and to be positioned at below warm-air pipe.
Further illustrating as such scheme, described material blanking tube and warm-air pipe are positioned at the not homonymy of fire box.
Further illustrating as such scheme, described fire grate is arranged on the bottom of fire box, and described air compartment is positioned at the below of fire grate and is communicated with fire box.
A combustion method for biomass combustion boiler, is characterized in that, rational height is poor between blanking port and fire grate, and what utilize pressure-air carries biomass fuel to be combusted; Like this, fuel lighter in biomass fuel to be combusted is directly suspended in the aerial burning of fire box under the effect of pressure-air, and heavier fuel leaves and burns on fire grate.
As further illustrating of above-mentioned combustion method, it is characterized in that, the pressure of described pressure-air is more than 1.2 standard atmospheric pressures.
Compared with prior art, the invention has the beneficial effects as follows: fuel lighter in biomass fuel to be combusted is directly suspended in the aerial burning of fire box under the effect of pressure-air, and heavier fuel leaves and burns on fire grate; Make full use of biomass fuel easily (loose in transportation, disconnected) cause the phenomenon of powder, adopt a kind of anti-burning mode of aerial burning, biomass boiler 100% can be allowed to burn, then boiler heating is allowed to boost fast, what can meet user uses vapour demand, and the situation especially larger by vapour demand fluctuation is obvious especially, thus reduces energy waste.
Accompanying drawing explanation
Figure 1 shows that a kind of biomass combustion boiler structural representation provided by the invention.
Description of reference numerals:
1, fire box, 2, upper drum, 3, lower drum, 4, material blanking tube, 5, warm-air pipe, 6, fire grate, 7, air compartment, 8, convection current endothermic tube, 9, high-pressure air tube.
Detailed description of the invention
Understand essence of the present invention better for convenience of those skilled in the art, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
As shown in Figure 1, a kind of biomass combustion boiler, comprise: fire box 1, be arranged on the upper drum 2 in fire box 1, lower drum 3, material blanking tube 4, warm-air pipe 5, fire grate 6 and air compartment 7, connected by convection current endothermic tube 8 between upper drum 2, lower drum 3.
Wherein, described upper drum 2 is arranged on the top of fire box 1, and described lower drum 3 to be positioned at above material blanking tube 4 and to be positioned at below warm-air pipe 5, and material blanking tube 4 and warm-air pipe 5 are positioned at the not homonymy of fire box 1.Described fire grate 6 is arranged on the bottom of fire box 1, and described air compartment 7 is positioned at the below of fire grate 6 and is communicated with fire box 1.
Between the outlet and fire grate 6 of material blanking tube 4, there is difference in height, material blanking tube 4 is connected with high-pressure air tube 9.The air outlet of described high-pressure air tube 9 and the outlet of material blanking tube 4 connect together, and the air outlet of high-pressure air tube 9 is positioned on the downside of the outlet of material blanking tube 4.In the present embodiment, the pressure of preferred pressure-air is 1.5 standard atmospheric pressures, and in other embodiments, the pressure of described pressure-air, more than 1.2 standard atmospheric pressures, is not limited to the present embodiment.
Like this, during real work, what utilize pressure-air carries biomass fuel to be combusted.Fuel lighter in biomass fuel to be combusted is directly suspended in the aerial burning of fire box 1 under the effect of pressure-air, heavier fuel leaves in fire grate combustion zone, the heat major part that burning produces acts directly on convection current endothermic tube, quick heat exchange.The tail gas that burning produces is discharged by warm-air pipe.
Compared with prior art, the present embodiment utilizes biomass fuel easily (loose in transportation, disconnected) cause the phenomenon of powder, adopt a kind of anti-burning mode of aerial burning, biomass boiler 100% can be allowed to burn, and then allow boiler heating boost fast, what can meet user uses vapour demand, situation especially larger by vapour demand fluctuation is obvious especially, thus reduces energy waste.
Above detailed description of the invention has been described in detail essence of the present invention, but can not limit protection scope of the present invention with this.Apparently, under the enlightenment of essence of the present invention, the art those of ordinary skill also can carry out many improvement and modification, such as material blanking tube and warm-air pipe is positioned at the same side of fire box, such as the difference in height between material blanking tube outlet and fire grate is limited to more than 50cm etc. again.It should be noted that these improve and modify all to drop within claims of the present invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510358235.2A CN104976611A (en) | 2015-06-24 | 2015-06-24 | Biomass combustion boiler and combustion method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510358235.2A CN104976611A (en) | 2015-06-24 | 2015-06-24 | Biomass combustion boiler and combustion method thereof |
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| Publication Number | Publication Date |
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| CN104976611A true CN104976611A (en) | 2015-10-14 |
Family
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| CN201510358235.2A CN104976611A (en) | 2015-06-24 | 2015-06-24 | Biomass combustion boiler and combustion method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352346A (en) * | 2016-11-19 | 2017-01-25 | 无锡大功机械制造有限公司 | Garbage incinerator with feed material blowing-away and crushing functions |
| CN106382634A (en) * | 2016-11-19 | 2017-02-08 | 无锡大功机械制造有限公司 | Garbage combustion furnace provided with feedstock crushing device |
| CN106382637A (en) * | 2016-11-19 | 2017-02-08 | 无锡大功机械制造有限公司 | Feed device of garbage incinerator |
| CN106402886A (en) * | 2016-11-19 | 2017-02-15 | 无锡大功机械制造有限公司 | Garbage incinerator with feedstock smashing and puffing-off function |
| CN106439841A (en) * | 2016-11-19 | 2017-02-22 | 无锡大功机械制造有限公司 | Smashing feeding device of incinerator |
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- 2015-06-24 CN CN201510358235.2A patent/CN104976611A/en not_active Application Discontinuation
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106352346A (en) * | 2016-11-19 | 2017-01-25 | 无锡大功机械制造有限公司 | Garbage incinerator with feed material blowing-away and crushing functions |
| CN106382634A (en) * | 2016-11-19 | 2017-02-08 | 无锡大功机械制造有限公司 | Garbage combustion furnace provided with feedstock crushing device |
| CN106382637A (en) * | 2016-11-19 | 2017-02-08 | 无锡大功机械制造有限公司 | Feed device of garbage incinerator |
| CN106402886A (en) * | 2016-11-19 | 2017-02-15 | 无锡大功机械制造有限公司 | Garbage incinerator with feedstock smashing and puffing-off function |
| CN106439841A (en) * | 2016-11-19 | 2017-02-22 | 无锡大功机械制造有限公司 | Smashing feeding device of incinerator |
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