CN201897212U - Two-stage combustion-supporting reverse burning type combustion furnace - Google Patents
Two-stage combustion-supporting reverse burning type combustion furnace Download PDFInfo
- Publication number
- CN201897212U CN201897212U CN2010206387053U CN201020638705U CN201897212U CN 201897212 U CN201897212 U CN 201897212U CN 2010206387053 U CN2010206387053 U CN 2010206387053U CN 201020638705 U CN201020638705 U CN 201020638705U CN 201897212 U CN201897212 U CN 201897212U
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- Prior art keywords
- combustion
- furnace
- supporting
- grate
- heat
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- Expired - Fee Related
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 45
- 238000010304 firing Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 13
- 239000003546 flue gas Substances 0.000 abstract description 13
- 239000007789 gas Substances 0.000 abstract description 11
- 239000000446 fuel Substances 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 9
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 241000208125 Nicotiana Species 0.000 description 5
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000779 smoke Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Solid-Fuel Combustion (AREA)
Abstract
本实用新型公开了一种二级助燃反烧式燃烧炉，包括炉壳、炉膛和导热管；所述的炉膛由上炉栅和下炉栅分隔成上炉膛、中炉膛和下炉膛，并对应设置上炉门、中炉门和下炉门；所述的上炉膛和下炉膛分别设置沿切线连通炉壳外的助燃风管，所述的助燃风管连接助燃风机，所述的中炉膛与导热管连通。本实用新型的炉膛由两层炉栅分隔成三个炉膛，上炉膛完成一次燃烧后，所产生的挥发成份、可燃性物质和高温烟气被反吹进中炉膛，在来自下炉膛助燃气体的共同作用下二次燃烧，同时引燃上炉膛落下的未燃尽燃料，使其充分燃烧。本实用新型燃烧更充分、热效率更高，烟气中污染物更少。
The utility model discloses a two-stage combustion-supporting and reverse-burning combustion furnace, which comprises a furnace shell, a furnace and a heat-conducting tube; the furnace is divided into an upper furnace, a middle furnace and a lower furnace by an upper furnace grate and a lower furnace grate; The upper furnace door, the middle furnace door and the lower furnace door are set; the upper furnace and the lower furnace are respectively provided with combustion-supporting air ducts connected to the outside of the furnace shell along the tangent, and the combustion-supporting air ducts are connected to the combustion-supporting fan, and the middle furnace and the The heat pipe is connected. The furnace of the utility model is divided into three furnaces by two layers of grates. After the upper furnace completes a combustion, the volatile components, combustible substances and high-temperature flue gas produced are blown back into the middle furnace, and the combustion-supporting gas from the lower furnace The secondary combustion under the combined action simultaneously ignites the unburned fuel falling from the upper furnace to make it burn fully. The utility model has more complete combustion, higher thermal efficiency and less pollutants in the flue gas.
Description
Technical field
The utility model belongs to baking firing equipment technical field, is specifically related to a kind ofly help to make burning more abundant, effectively improves the combustion-supporting counter-burning type combustion furnace of secondary of the thermal efficiency.
Background technology
At present, what the heating furnace in intensive flue-cured tobacco room adopted is single grate design, and through after the primary combustion, a large amount of inflammable substances are discharged with flue gas fire coal in burner hearth, and unburnt fuel is abandoned as slag.The problem that intensive flue-cured tobacco room ubiquity utilization rate of coal is low, the thermal efficiency is not high of prior art.Therefore, not only caused severe energy waste, and serious environment pollution.In the tobacco planting area, because the existence in a large amount of intensive flue-cured tobaccos room, the environmental pollution that fume emission brought has influenced local resident's normal life, even has influenced the self-sow of trees and crops.For this reason, the design people develops a kind of efficiency of combustion height through concentrating on studies, the combustion-supporting counter-burning type combustion furnace of secondary that pollutant emission is low, and evidence, respond well.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of secondary combustion-supporting counter-burning type combustion furnace, and fuel combustion is more abundant, the thermal efficiency is higher, heating effect is better, is very suitable for intensive flue-cured tobacco room and uses.
The purpose of this utility model is achieved in that and comprises furnace shell, burner hearth and heat pipe; Described burner hearth is separated into upper furnace, middle burner hearth and lower hearth by last grate and following grate, and correspondence is provided with upper furnace door, middle fire door and lower furnace door; Described upper furnace and lower hearth are provided with the combustion-supporting airduct outside tangent line is communicated with furnace shell respectively, and described combustion-supporting airduct connects combustion fan, and described middle burner hearth is communicated with heat pipe.
The utlity model has the combustion furnace of three chamber structures of secondary combustion aid function, fuel is finished once the volatilization composition, inflammable substance and the high-temperature flue gas that are produced after the combustion-supporting burning at upper furnace and is advanced middle burner hearth by blowback, second-time burning under from the combustion-supporting gas acting in conjunction of lower hearth, the upper furnace that ignites simultaneously falls into the uncombusted fuel of burner hearth, and it is fully burnt.In addition, on heat pipe, set up heat exchanger, improved heating efficiency.Therefore, the utility model is heating furnace compared to existing technology, and fuel combustion is more abundant, the thermal efficiency is higher, heating effect is better, and noxious pollutant still less in the discharged flue gas.
Description of drawings
Fig. 1 partly cuts open schematic diagram for the utility model overall structure;
Fig. 2 is that the A of Fig. 1 is to schematic perspective view;
Fig. 3 is that the B of Fig. 1 is to schematic perspective view;
Among the figure: 1-upper furnace, 2-upper furnace door, burner hearth among the 3-, fire door among the 4-, 5-lower hearth, 6-lower furnace door, the 7-furnace shell, 8-heat pipe, 9-heat outlet, the 10-heat exchanger, 11-heat exchanger tube, 12-combustion air house steward, 13-combustion air arm, the last grate of 14-, 15-refractory lining, grate under the 16-, the 17-exhanst gas outlet.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described, but never in any form the utility model is limited, any conversion based on the utility model training centre is done all falls into protection domain of the present utility model.
As shown in the figure, the utility model comprises furnace shell 7, burner hearth and heat pipe 8; Described burner hearth is separated into upper furnace 1, middle burner hearth 3 and lower hearth 5 by last grate 14 and following grate 16, and correspondence is provided with upper furnace door 2, middle fire door 4 and lower furnace door 6; Described upper furnace 1 and lower hearth 5 are provided with the combustion-supporting airduct outside tangent line is communicated with furnace shell 7 respectively, and described combustion-supporting airduct connects combustion fan, and described middle burner hearth 3 is communicated with heat pipe 8.
As shown in Figure 2, described combustion-supporting airduct comprises combustion air house steward 12 and combustion air arm 13, and described combustion air house steward 12 is connected with combustion fan, and combustion air arm 13 tangentially is communicated with upper furnace 1 and lower hearth 5 respectively.Integrated to realize feeder, be convenient to operation.
The described heat pipe 8 outer radiating fins that are provided with.
The heat exchanger of being made up of heat exchanger tube 11 10 is set on the described heat pipe 8, and described heat exchanger tube 11 quantity are more than 1.
In above-mentioned the setting, on the heat pipe 8 radiating fin is set and has increased area of dissipation, improved heat dissipation capacity.Can effectively be delivered to the heat supply zone to the heat energy of high-temperature flue gas in the heat pipe 8 by setting up heat exchanger 10.
The described heat exchanger tube 11 outer radiating fins that are provided with.
In the described furnace shell 7 refractory lining 15 is set.
Described upward grate 14 is heat-resisting grate, and following grate 16 is common grate.
Described combustion fan connects automaton.Described automaton connects temperature-detecting device.Automaton is implemented control to the combustion fan air output, can change fired state of the present utility model, and quantity of heat production also changes thereupon.If automaton is connected with temperature-detecting device in the cigarette-filling house, thereby obtain the variations in temperature parameter, adjust the combustion fan air output on this basis, furnace temperature is improved or reduce, better meet the temperature requirements in the cigarette-filling house.
Operation principle of the present utility model:
Burner hearth of the present utility model is separated into three burner hearths by two-layer grate, and upper furnace 1 is the primary combustion zone of fuel, and middle burner hearth 3 is the intermediate zone, and lower hearth 5 is combustion-supporting air inducing and holds gray area.Combustion-supporting airduct of the present utility model is arranged on the furnace shell 7 with tangential direction, and be communicated with upper furnace 1 and lower hearth 5 respectively, its purpose is to make the combustion-supporting gas of importing directly to impact inboard wall of burner hearth, thereby improve the pressure of gas, combustion-supporting gas is fully contacted with fuel, also guaranteed the realization of anti-burning effect.Be after fuel is finished primary combustion in the upper furnace 1, burner hearth 3 during the volatilization composition that is produced, inflammable substance and high-temperature flue gas are advanced from the combustion air blowback of combustion-supporting airduct under the acting in conjunction from the combustion-supporting gas of lower hearth 5, is realized second-time burning; The second-time burning uncombusted fuel that upper furnace 1 falls that also ignites fully burns it.Volatilization composition, inflammable substance and high-temperature flue gas, and the second-time burning of uncombusted broken coal has formed the effect of " biquadratic burning ", burn more abundant, flue-gas temperature is high, can effectively eliminate black smoke, minimizing is to the pollution of environment.
The course of work of the present utility model:
Before the igniting, be paved with fire coal on the grate 14 on the upper furnace 1, on the following grate 16 of middle burner hearth 3, spreading an amount of fire coal, the fire coal in lighting by combustible material in the burner hearth 3; Behind the fired coal combustion of middle burner hearth 3, upper furnace 1 bottom fire coal ignites; Start combustion fan, combustion-supporting gas enters in upper furnace 1 and the lower hearth 5 by combustion-supporting airduct tangent line, and the fire coal of combustion-supporting upper furnace 1 is finished primary combustion.Volatilization composition, inflammable substance and high-temperature flue gas that upper furnace 1 fired coal combustion is produced under the effect of combustion-supporting gas pressure, are advanced in the middle burner hearth 3 by upper furnace 1 blowback; Fire coal in the middle burner hearth 3 is importing under the effect of combustion-supporting gases from lower hearth 5, and coal-fired and volatile combustible matter burns from bottom to top, and volatilization composition, inflammable substance that upper furnace 1 blowback of igniting is got off form second-time burning.In the coal-fired afterburnt that middle burner hearth 3 adds, do not need to add again; In the subsequent combustion process, middle burner hearth 3 is accepted and second-time burning upper furnace 1 unburned or the unburnt broken coal that fall, and blowback the volatilization composition, inflammable substance and the high-temperature flue gas that get off.The burning high-temperature flue gas that forms, the heat outlet 9 of burner hearth 3 enters the heat exchanger 10 on heat pipe 8 and the heat pipe 8 in the warp, is used for heat supply, and the remaining flue gas after the heat exchange is discharged through exhanst gas outlet 17; The formed ashes that burn fall into lower hearth 5 bottoms.
The utility model can be widely used in multiple field as firing equipment, especially needs transformation temperature to satisfy the heat supply process field of need of work.
Characteristics of the present utility model:
1, scientific and reasonable for structure, the more abundant burning of fire coal has improved the thermal efficiency, compares with firing equipment of the same type, calculates by 150 hours, and 20%-30% can be sparing in the use of coal.
2, make burning more abundant by second-time burning, the black smoke in effectively removing smoke reduces the discharging of carbon and inflammable substance, effectively protects environment.
3, owing to thermal efficiency height, realize effectively economizing on coal, thereby reduced workman's coal number of times, improved operating efficiency.
4, the control fire is convenient, accurate, thereby has improved baking quality.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206387053U CN201897212U (en) | 2010-12-02 | 2010-12-02 | Two-stage combustion-supporting reverse burning type combustion furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206387053U CN201897212U (en) | 2010-12-02 | 2010-12-02 | Two-stage combustion-supporting reverse burning type combustion furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201897212U true CN201897212U (en) | 2011-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206387053U Expired - Fee Related CN201897212U (en) | 2010-12-02 | 2010-12-02 | Two-stage combustion-supporting reverse burning type combustion furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201897212U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534455A (en) * | 2014-12-29 | 2015-04-22 | 南京春晓农机有限公司 | Biomass combustion equipment |
| CN115388404A (en) * | 2022-09-15 | 2022-11-25 | 华能国际电力股份有限公司 | A low-nitrogen combustion system that can directly mix natural gas in the primary air chamber |
-
2010
- 2010-12-02 CN CN2010206387053U patent/CN201897212U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534455A (en) * | 2014-12-29 | 2015-04-22 | 南京春晓农机有限公司 | Biomass combustion equipment |
| CN115388404A (en) * | 2022-09-15 | 2022-11-25 | 华能国际电力股份有限公司 | A low-nitrogen combustion system that can directly mix natural gas in the primary air chamber |
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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 |
Granted publication date: 20110713 Termination date: 20141202 |
|
| EXPY | Termination of patent right or utility model |