CN204301041U - Lower feeding biomass combustion boiler - Google Patents
Lower feeding biomass combustion boiler Download PDFInfo
- Publication number
- CN204301041U CN204301041U CN201420793242.6U CN201420793242U CN204301041U CN 204301041 U CN204301041 U CN 204301041U CN 201420793242 U CN201420793242 U CN 201420793242U CN 204301041 U CN204301041 U CN 204301041U
- Authority
- CN
- China
- Prior art keywords
- burner hearth
- flame
- combustion boiler
- biomass combustion
- feeding cylinder
- 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.)
- Expired - Fee Related
Links
- 239000002028 Biomass Substances 0.000 title claims abstract description 54
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 42
- 239000003063 flame retardant Substances 0.000 claims abstract description 20
- 239000000779 smoke Substances 0.000 claims abstract description 20
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000007921 spray Substances 0.000 claims description 10
- 238000013022 venting Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 abstract description 32
- 238000010304 firing Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 description 21
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Solid-Fuel Combustion (AREA)
Abstract
Lower feeding biomass combustion boiler, relates to a kind of biomass combustion boiler.The utility model in order to solve existing exist air distribution unreasonable, easily there is burning, burning insufficient and that the thermal efficiency is low problem.Feeding cylinder is arranged in burner hearth, the lower end of feeding cylinder is communicated with the inside of feed screw, one time aid distributing pipe is communicated with feeding cylinder, secondary aid distributing pipe is positioned at the top of an aid distributing pipe and is communicated with burner hearth, the upper end of burner hearth is provided with flue, the port of export of flue is provided with smoke outlet tube, smoke outlet tube is provided with chimney, the below of smoke outlet tube is provided with expansion chamber, expansion chamber is communicated with smoke outlet tube by pipeline, flame-retardant board is inserted on the sidewall of burner hearth, one end that flame-retardant board is positioned at burner hearth outside is connected with electric pushrod, when electric pushrod extends, flame-retardant board covers the upper port place at feeding cylinder, when electric pushrod shortens, flame-retardant board departs from the upper port of feeding cylinder, chimney is equipped with air-introduced machine.The utility model is used for firing biomass fuel.
Description
Technical field
The utility model relates to a kind of biomass combustion boiler, is specifically related to a kind of lower feeding biomass combustion boiler, belongs to technical field of combustion equipment.
Background technology
The ignition process of biomass molding fuel refers to that biomass molding fuel contacts with oxygen molecule, after mixing, from be reacted to process the last period that temperature is increased to fierce combustion reaction.The igniting realizing biomass molding fuel must meet, and certain density volatile matter is separated out on biomass molding fuel surface, will have appropriate air, and have high enough temp around volatile matter.The ignition process of biomass molding fuel is:
A (), under the effect of thermal source, moisture evaporates effusion biomass molding fuel surface gradually;
(b) subsequently in biomass molding fuel superficial layer fuel particle organic beginning decompose, some volatile combustible gaseous material analyzes;
C () local surfaces reaches certain density volatile matter and runs into appropriate air and reach certain temperature, just start local ignition;
D () is lighted face subsequently and is gradually expanded, also constantly lighted a fire by other local surfaces simultaneously;
E overall flame that biomass molding fuel is expanded as rapidly in () igniting face occurs;
F () ignition zone is deep into the inner certain depth of biomass molding fuel gradually, complete whole stable ignition process.
Impact igniting because have; Ignition temperature; Living beings kind; Biomass moulding density; Biomass molding fuel moisture content; Biomass molding fuel physical dimension etc.
Biomass molding fuel is extruded at a certain temperature by the living beings of high volatile and forms, its institutional framework defines volatile matter speed of separating out from inside to outside and heat is slowed down by outer outside transmission speed, and the oxygen needed for igniting reduces to some extent than primordial matter, therefore the ignition performance of biomass molding fuel decreases than primordial matter, but far away higher than the ignition performance of moulded coal, from overall trend analysis, the firing characteristic of biomass molding fuel is more tending towards living beings firing characteristic.
The essence of biomass molding fuel combustion mechanism is static infiltration type diffusion combustion, combustion process after the catching fire of fuel, its combustion process can be described as;
A the combustible volatile burning of () biomass molding fuel surface, carries out the heat-producing chemical reaction of flammable body and oxygen, forms orange-yellow flame;
B (), except the burning of biomass molding fuel surface portion combustible volatile, the carbon of shaped fuel surface portion is in transition combustion zone, forms orange-yellow flame;
C () biomass molding fuel surface still has less volatile combustion, more importantly burn to shaped fuel more percdation, the diffusion combustion of coke, comburant CO
2, CO and other gas to external diffusion, the middle CO that advances is constantly and O
2be combined into CO
2, the thin grey shell of shaped fuel Surface Realize, skin surrounds light blue short flame;
D the combustion fuel of () biomass moulding is further to more Deep Development, mainly carbon burning is carried out in layer, the burning of carbon monoxide is carried out on ball surface, form thicker grey shell, due to after-flame and the thermal expansion of living beings, present micropore tissue or clearance channel even crack in grieshoch, less short flame surrounds forming blocks;
E () after-flame ash shell constantly thickeies, the basic after-flame of combustible, and when not strong interference, form overall grey ball, flame is not almost seen in grey ball surface, and grey club becomes kermesinus, so far completes the whole combustion process of biomass molding fuel.
Existing biomass combustion boiler is varied, but has that unreasonable, the easy appearance of air distribution is burnt, insufficient and that the thermal efficiency is low drawback of burning.
Summary of the invention
The utility model in order to solve existing exist air distribution unreasonable, easily there is burning, burning insufficient and that the thermal efficiency is low problem, and then provide a kind of lower feeding biomass combustion boiler.
The utility model in order to solve the problems of the technologies described above taked technical scheme is:
Lower feeding biomass combustion boiler of the present utility model, comprises burner hearth, feed screw and feed tank, described feed screw is provided with burner hearth and feed tank, feed tank is positioned at the outside of burner hearth, lower feeding biomass combustion boiler also comprises feeding cylinder, automatic ignitor, aid distributing pipe, secondary aid distributing pipe, flue, smoke outlet tube, chimney, expansion chamber, bearing, flame-retardant board, electric pushrod, pipeline and an air-introduced machine, described feeding cylinder is arranged in burner hearth, and the lower end of feeding cylinder is communicated with the inside of feed screw, aid distributing pipe is communicated with feeding cylinder through the sidewall of burner hearth, also automatic ignitor is provided with in burner hearth, secondary aid distributing pipe is positioned at the top of an aid distributing pipe, secondary aid distributing pipe is communicated with burner hearth, the upper end of burner hearth is provided with flue, the port of export of flue is provided with smoke outlet tube, smoke outlet tube is provided with chimney, the below of smoke outlet tube is provided with expansion chamber, expansion chamber is communicated with smoke outlet tube by pipeline, feed screw by seat supports on ground, flame-retardant board is inserted on the sidewall of burner hearth, one end that flame-retardant board is positioned at burner hearth outside is connected with electric pushrod, when electric pushrod extends, flame-retardant board covers the upper port place at feeding cylinder, when electric pushrod shortens, flame-retardant board departs from the upper port of feeding cylinder, chimney is equipped with air-introduced machine.
Preferred: described lower feeding biomass combustion boiler also comprises supply tank, water pump, water pipe and spray thrower, and the inwall of described expansion chamber is equipped with multiple spray thrower, spray thrower is connected with outside supply tank by water pipe, and water pipe is provided with water pump.Setting like this, drenches the dust in expansion chamber, avoids dust rising to enter chimney and enters in air.
Preferred: described lower feeding biomass combustion boiler also comprises controller, controller and electric pushrod and screw feeding mechatronics.Setting like this, controls the action of electric pushrod and feed screw, convenient laborsaving.
Preferred: described lower feeding biomass combustion boiler also comprises tripper, described tripper is arranged on the outlet at bottom place of feed tank.Setting like this, prevents biomass fuel choke outlet, can ensure uniform feeding simultaneously.
Preferred: described burner hearth to be provided with flame viewing-mirror and venting.Setting like this, is convenient to the fired state observing biomass fuel, in good time adjustment air distribution situation; And better ensure the safe operation of burning boiler.
The utility model compared with prior art has following effect:
Lower feeding biomass combustion boiler air distribution of the present utility model is reasonable, eliminates the problem of falling burning, and fuel combustion is more abundant, and the thermal efficiency is high.The fuel that lower feeding biomass combustion boiler of the present utility model uses is mainly based on granular fuel, thermal power is between 5MW---1.25MW, water content is between 5---30%, it is mainly used at small-sized warming installation and small-sized bathing air feed, automatically light, long-term fixed personnel is not needed to nurse, as long as fuel is guaranteed supply, assure feed water.
Accompanying drawing explanation
Fig. 1 is the structural representation of lower feeding biomass combustion boiler.
In figure: 1-burner hearth; 2-feed screw; 3-feed tank; 4-feeding cylinder; 5-automatic ignitor; 6-aid distributing pipe; 7-bis-aid distributing pipes; 8-flue; 9-smoke outlet tube; 10-chimney; 11-expansion chamber; 12-bearing; 13-flame-retardant board; 14-electric pushrod; 15-pipeline; 16-air-introduced machine; 17-supply tank; 18-water pump; 19-water pipe; 20-spray thrower; 21-controller; 22-tripper; 23-flame viewing-mirror; 24-venting.
Detailed description of the invention
Detailed description of the invention: in conjunction with the accompanying drawings, the lower feeding biomass combustion boiler of present embodiment, comprises burner hearth 1, feed screw 2 and feed tank 3, described feed screw 2 is provided with burner hearth 1 and feed tank 3, feed tank 3 is positioned at the outside of burner hearth 1, lower feeding biomass combustion boiler also comprises feeding cylinder 4, automatic ignitor 5, aid distributing pipe 6, secondary aid distributing pipe 7, flue 8, smoke outlet tube 9, chimney 10, expansion chamber 11, bearing 12, flame-retardant board 13, electric pushrod 14, pipeline 15 and an air-introduced machine 16, described feeding cylinder 4 is arranged in burner hearth 1, and the lower end of feeding cylinder 4 is communicated with the inside of feed screw 2, aid distributing pipe 6 is communicated with feeding cylinder 4 through the sidewall of burner hearth 1, automatic ignitor 5 is also provided with in burner hearth 1, secondary aid distributing pipe 7 is positioned at the top of an aid distributing pipe 6, secondary aid distributing pipe 7 is communicated with burner hearth 1, the upper end of burner hearth 1 is provided with flue 8, the port of export of flue 8 is provided with smoke outlet tube 9, smoke outlet tube 9 is provided with chimney 10, the below of smoke outlet tube 9 is provided with expansion chamber 11, expansion chamber 11 is communicated with smoke outlet tube 9 by pipeline 15, feed screw 2 is supported on ground by bearing 12, flame-retardant board 13 is inserted on the sidewall of burner hearth 1, one end that flame-retardant board 13 is positioned at burner hearth 1 outside is connected with electric pushrod 14, when electric pushrod 14 extends, flame-retardant board 13 covers the upper port place at feeding cylinder 4, when electric pushrod 14 shortens, flame-retardant board 13 departs from the upper port of feeding cylinder 4, air-introduced machine 16 chimney 10 is equipped with.Described lower feeding biomass combustion boiler also comprises supply tank 17, water pump 18, water pipe 19 and spray thrower 20, the inwall of described expansion chamber 11 is equipped with multiple spray thrower 20, spray thrower 20 is connected with outside supply tank 17 by water pipe 19, water pipe 19 is provided with water pump 18.Described lower feeding biomass combustion boiler also comprises controller 21, and controller 21 is electrically connected with electric pushrod 14 and feed screw 2.Described lower feeding biomass combustion boiler also comprises tripper 22, and described tripper 22 is arranged on the outlet at bottom place of feed tank 3.Described burner hearth 1 is provided with flame viewing-mirror 23 and venting 24.
The exemplary illustration of present embodiment just to this patent, does not limit its protection domain, and those skilled in the art can also change, as long as no the Spirit Essence exceeding this patent, in the protection domain of this patent its local.
Claims (5)
1. lower feeding biomass combustion boiler, comprises burner hearth (1), feed screw (2) and feed tank (3), described feed screw (2) is provided with burner hearth (1) and feed tank (3), feed tank (3) is positioned at the outside of burner hearth (1), it is characterized in that: lower feeding biomass combustion boiler also comprises feeding cylinder (4), automatic ignitor (5), aid distributing pipe (6), secondary aid distributing pipe (7), flue (8), smoke outlet tube (9), chimney (10), expansion chamber (11), bearing (12), flame-retardant board (13), electric pushrod (14), pipeline (15) and an air-introduced machine (16), described feeding cylinder (4) is arranged in burner hearth (1), and the lower end of feeding cylinder (4) is communicated with the inside of feed screw (2), aid distributing pipe (6) is communicated with feeding cylinder (4) through the sidewall of burner hearth (1), automatic ignitor (5) is also provided with in burner hearth (1), secondary aid distributing pipe (7) is positioned at the top of an aid distributing pipe (6), secondary aid distributing pipe (7) is communicated with burner hearth (1), the upper end of burner hearth (1) is provided with flue (8), the port of export of flue (8) is provided with smoke outlet tube (9), smoke outlet tube (9) is provided with chimney (10), the below of smoke outlet tube (9) is provided with expansion chamber (11), expansion chamber (11) is communicated with smoke outlet tube (9) by pipeline (15), feed screw (2) is supported on ground by bearing (12), flame-retardant board (13) is inserted on the sidewall of burner hearth (1), one end that flame-retardant board (13) is positioned at burner hearth (1) outside is connected with electric pushrod (14), when electric pushrod (14) extends, flame-retardant board (13) covers the upper port place at feeding cylinder (4), when electric pushrod (14) shortens, flame-retardant board (13) departs from the upper port of feeding cylinder (4), air-introduced machine (16) chimney (10) is equipped with.
2. lower feeding biomass combustion boiler according to claim 1, it is characterized in that: described lower feeding biomass combustion boiler also comprises supply tank (17), water pump (18), water pipe (19) and spray thrower (20), multiple spray thrower (20) inwall of described expansion chamber (11) is equipped with, spray thrower (20) is connected with outside supply tank (17) by water pipe (19), water pipe (19) is provided with water pump (18).
3. lower feeding biomass combustion boiler according to claim 1 and 2, is characterized in that: described lower feeding biomass combustion boiler also comprises controller (21), and controller (21) is electrically connected with electric pushrod (14) and feed screw (2).
4. lower feeding biomass combustion boiler according to claim 3, is characterized in that: described lower feeding biomass combustion boiler also comprises tripper (22), and described tripper (22) is arranged on the outlet at bottom place of feed tank (3).
5. lower feeding biomass combustion boiler according to claim 4, is characterized in that: described burner hearth (1) is provided with flame viewing-mirror (23) and venting (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793242.6U CN204301041U (en) | 2014-12-16 | 2014-12-16 | Lower feeding biomass combustion boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793242.6U CN204301041U (en) | 2014-12-16 | 2014-12-16 | Lower feeding biomass combustion boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204301041U true CN204301041U (en) | 2015-04-29 |
Family
ID=53106574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420793242.6U Expired - Fee Related CN204301041U (en) | 2014-12-16 | 2014-12-16 | Lower feeding biomass combustion boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204301041U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465770A (en) * | 2016-01-18 | 2016-04-06 | 南通澳润建材科技有限公司 | Biomass burning furnace |
| CN105782955A (en) * | 2014-12-16 | 2016-07-20 | 哈尔滨东升锅炉有限公司 | Underfeed type biomass combustion boiler |
| CN107013932A (en) * | 2017-04-13 | 2017-08-04 | 安徽鼎梁生物能源科技开发有限公司 | A kind of stably feeding device of biomass boiler |
| CN108168092A (en) * | 2017-11-30 | 2018-06-15 | 北镇市青岩节能设备制造有限公司 | Biomass environment-friendly boiler |
-
2014
- 2014-12-16 CN CN201420793242.6U patent/CN204301041U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782955A (en) * | 2014-12-16 | 2016-07-20 | 哈尔滨东升锅炉有限公司 | Underfeed type biomass combustion boiler |
| CN105782955B (en) * | 2014-12-16 | 2018-09-21 | 泉州兴哲商贸有限公司 | Lower feeding biomass combustion boiler |
| CN105465770A (en) * | 2016-01-18 | 2016-04-06 | 南通澳润建材科技有限公司 | Biomass burning furnace |
| CN107013932A (en) * | 2017-04-13 | 2017-08-04 | 安徽鼎梁生物能源科技开发有限公司 | A kind of stably feeding device of biomass boiler |
| CN108168092A (en) * | 2017-11-30 | 2018-06-15 | 北镇市青岩节能设备制造有限公司 | Biomass environment-friendly boiler |
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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: 20150429 |