CN204704820U - Solid fuel gasification burning boiler - Google Patents
Solid fuel gasification burning boiler Download PDFInfo
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- CN204704820U CN204704820U CN201520261277.XU CN201520261277U CN204704820U CN 204704820 U CN204704820 U CN 204704820U CN 201520261277 U CN201520261277 U CN 201520261277U CN 204704820 U CN204704820 U CN 204704820U
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- flue gas
- solid fuel
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- 239000004449 solid propellant Substances 0.000 title claims abstract description 30
- 238000002309 gasification Methods 0.000 title claims abstract description 17
- 238000002485 combustion reaction Methods 0.000 claims abstract description 67
- 239000003546 flue gas Substances 0.000 claims abstract description 66
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 65
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- 239000002245 particle Substances 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 33
- 230000003134 recirculating effect Effects 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 19
- 235000019504 cigarettes Nutrition 0.000 claims description 17
- 238000001704 evaporation Methods 0.000 claims description 15
- 230000000740 bleeding effect Effects 0.000 claims description 7
- 239000003517 fume Substances 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 239000010813 municipal solid waste Substances 0.000 description 17
- 239000000446 fuel Substances 0.000 description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000003245 coal Substances 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 238000011282 treatment Methods 0.000 description 7
- 239000002956 ash Substances 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000005243 fluidization Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000018875 hypoxemia Diseases 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model relates to boiler plant technical field, be specially a kind of solid fuel gasification burning boiler, its structure is simple, heating surface arranges few energy investment reduction cost and operation cost, make boiler environment-friendly high-efficiency, feed hopper connects burner hearth, burner hearth comprises the face arch be in tilted layout in turn, first rear arch, second rear arch, after first, the pitch of arch is lower than face arch, the pitch of arch after second, face arch, first rear arch surrounds central combustion district, first rear arch, second rear arch surrounds flue gas Inner eycle loop, gap is left between first rear arch lower end and the second rear arch, burner hearth bottom below first rear arch lower beveled is provided with wind-distributing bed, wind-distributing bed lower end is connected with air compartment, the face arch of the first rear arch upper end, second rear arch surrounds main combustion zone, furnace outlet connects cyclone separator, particle port of export link circuit flue one end of cyclone separator, smoke outlet connects back-end ductwork, the loop flue other end is communicated with flue gas Inner eycle loop.
Description
Technical field
The utility model relates to boiler plant technical field, is specially a kind of solid fuel gasification burning boiler.
Background technology
The low-calorific-value solid fuel such as rubbish, mud boiler is as the low-calorific-value solid fuel such as rubbish, mud innoxious use, recycling and processing device, have two kinds of boilers at present, one be the low-calorific-value solid fuel such as fire grate garbage, mud boiler, one be mix burn high inflammable substance (as coal) circulation fluidized bed garbage fired boiler.Fire grate garbage, the low-calorific-value solid fuel boilers such as mud, adopt fire grate combustion system, the complex structure such as fire grate and hydraulic mechanism, up-front investment is high, and burning adopts the combustion system of oxygen enrichment high temperature, the pernicious gas amount produced is large, fume treatment cost is high, because the ash quantity that incineration firing produces is large, adopt the mode limited efficiency of Gravity Separation, adopt a large amount of ash buckets and grey Slag treatment conveying equipment, increase investment, increase operating cost, in addition due to rubbish, the low heat value characteristic of the low-calorific-value solid fuels such as mud makes exhaust gas volumn limited inner flue gas of the stove flow velocity low, heating surface heat-transfer effect is poor, need in boiler to arrange a lot of heating surface, increase cost of investment.Back-end surfaces adopts rapping-off-ash mode, increases operating cost, also often causes the boiler operatiopn of afterbody enclosure wall tube damage influence simultaneously.Adopt the circulating bed boiler of cyclone separator because the calorific value of the low-calorific-value solid fuel such as rubbish, mud is low, calorific value change greatly, present stage is all adopt to mix burning mode, make garbage disposal limited in one's ability, and need the coal resources of at substantial, each city of garbage disposal needs, but, not that each city has coal resources, the cost of transportation of coal is also the major reason that can not popularize of the recirculating fluidized bed mixing burning mode, this kind of boiler also adopts oxygen-enriched combusting mode simultaneously, makes harmful substance generation large, improves the cost of fume treatment.Gangue, brown coal etc. generally adopt Combustion technology of circulating fluidized, and the rich oxygen content burning in First air, the harmful substance of generation is many, does not have obvious gasification.
Summary of the invention
In order to solve the problem, the utility model provides a kind of solid fuel gasification burning boiler, and its structure is simple, heating surface arranges few energy investment reduction cost and operation cost, makes boiler environment-friendly high-efficiency.
Its technical scheme is such: a kind of solid fuel gasification burning boiler, it comprises feed hopper, described feed hopper connects burner hearth, it is characterized in that, described burner hearth comprises the face arch be in tilted layout in turn, first rear arch, second rear arch, after described first, the pitch of arch is lower than described face arch, the pitch of arch after second, described face arch, first rear arch surrounds central combustion district, described first rear arch, second rear arch surrounds flue gas Inner eycle loop, gap is left between described first rear arch lower end and described second rear arch, described burner hearth bottom below described first rear arch lower beveled is provided with wind-distributing bed, described wind-distributing bed lower end is connected with air compartment, the described face arch of described first rear arch upper end, second rear arch surrounds main combustion zone, described furnace outlet connects cyclone separator, particle port of export link circuit flue one end of described cyclone separator, smoke outlet connects back-end ductwork, the described loop flue other end is communicated with described flue gas Inner eycle loop, afterbody superheater is installed in described back-end ductwork, evaporating heating surface, air preheater, described air preheater is installed air distributor box, described air distributor box comprises First air passage, secondary air channel, air compartment described in described First air channel connection, described secondary air channel is communicated with overfire air device, described overfire air device is installed on described face arch, the import of described overfire air device is downward-sloping towards described flue gas Inner eycle loop.
It is further characterized in that, the described back-end ductwork of described afterbody superheater upper end is communicated with flue gas recirculation device, described flue gas recirculation device comprises recirculating gas duct, the cigarette wind mixing chamber of the first flue gas blower fan be installed in recirculating gas duct, connection recirculating gas duct end, the described back-end ductwork of described evaporating heating surface lower end has bleeding point, described bleeding point is communicated with the described recirculating gas duct of described first flue gas blower fan rear end by exhaust tube, is provided with the second flue gas blower fan in described exhaust tube;
Described First air passage comprises the first wind passage, the second wind passage, described first wind passage is directly communicated with described air distributor box and described air compartment, air distributor box described in described second wind channel connection and described cigarette wind mixing chamber, the port of export of described cigarette wind mixing chamber is communicated with described air compartment;
Be provided with multiple afterbody superheater in the described back-end ductwork of described evaporating heating surface upper end, each described afterbody superheater upper end, evaporating heating surface upper end have bypass exhanst gas outlet, and described bypass exhanst gas outlet is communicated with bypass flue by bypass fume pipe;
All automatic valve is installed in described recirculating gas duct, exhaust tube, bypass flue;
Described feed hopper lower end is communicated with screw(-type) feeder, and described screw(-type) feeder connects burner hearth by the preheating channel being tilted to lower layout;
Described face arch has passage;
Supported by cold-air duct in described first rear arch.
After adopting structure of the present utility model, arranged by face arch and two rear arches, central combustion district and flue gas Inner eycle loop, keep higher temperature and heat endurance, the design of overfire air device and loop flue simultaneously, achieve controlled burning, reach optimum environmental protection combustion efficiency, and fuel after-flame can be improved the thermal efficiency of boiler, because this boiler combustion and heat absorption are two controlled, effectively can reduce igniting oil gas consumption, greatly reduce ignition trigger cost, overall structure is simple, heating surface arranges few energy investment reduction cost and operation cost, make boiler environment-friendly high-efficiency.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Detailed description of the invention
As shown in Figure 1, a kind of solid fuel gasification burning boiler, it comprises feed hopper 1, feed hopper 1 connects burner hearth 2, burner hearth 2 comprises the face arch 3 be in tilted layout in turn, first rear arch 4, second rear arch 5, face arch 3, first rear arch 4, the inwall of the second rear arch 5 all builds thick wear-resisting pouring material, castable inside arranges gap and bar-mat reinforcement and is beneficial to and heats castable, face arch 3 has passage 6, supported by cold-air duct in first rear arch 4, pass through accentric support, improve side towards the fire temperature and promote burning, inside passes into the cold air of adjustable flow, temperature is kept by coutroi velocity, first rear arch 4 height is lower than the height of face arch 3 and the second rear arch 5, face arch 3, first rear arch 4 surrounds central combustion district, the steam that garbage pre-heating produces can be discharged to central combustion district from passage 6, avoid reducing burning DIE Temperature, the easier ignition of rubbish, first rear arch 4, second rear arch 5 surrounds flue gas Inner eycle loop, gap is left between first rear arch 4 lower end and the second rear arch 5, guarantee to enter central combustion district from flue gas Inner eycle loop, bottom burner hearth 2 below first rear arch 4 lower beveled, wind-distributing bed 7 is installed, stopped by inclination first rear arch 4 completely directly over wind-distributing bed 7, wind-distributing bed 7 lower end is connected with air compartment 8, the face arch 3 of the first rear arch 4 upper end, second rear arch 5 surrounds main combustion zone, burner hearth 2 exports and connects cyclone separator 9, particle port of export link circuit flue 10 one end of cyclone separator 9, smoke outlet connects back-end ductwork 11, loop flue 10 other end is communicated with flue gas Inner eycle loop, particle reenters central combustion district again after can entering flue gas Inner eycle loop and again burns, afterbody superheater 12 is installed in back-end ductwork 11, evaporating heating surface 13, air preheater 14, air preheater 14 is provided with air distributor box 15, air distributor box 15 comprises First air passage, secondary air channel, First air passage comprises the first wind passage, second wind passage, lead to the pipeline that other need blowing in addition, first wind passage is directly communicated with air distributor box 15 and air compartment 8, second wind channel connection air distributor box 15 and cigarette wind mixing chamber 16, the port of export of cigarette wind mixing chamber 16 is communicated with air compartment 8, secondary air channel is communicated with overfire air device 17, overfire air device 17 is installed on face arch 3, the import of overfire air device 17 is downward-sloping towards flue gas Inner eycle loop, with flue gas Inner eycle direction in the same way.
The back-end ductwork 11 of afterbody superheater 12 upper end is communicated with flue gas recirculation device, flue gas recirculation device comprises recirculating gas duct 18, be installed on the first flue gas blower fan 19 in recirculating gas duct 18, connect the cigarette wind mixing chamber 16 of recirculating gas duct 18 end, first its exhaust gas volumn of flue gas blower fan 19 equals fluidisation needs total blast volume to deduct burning Air Quantity Required, flow velocity in combustion gas furnace can be improved, augmentation of heat transfer, reduce heating surface, back-end ductwork 11 surrounding of evaporating heating surface 13 lower end has bleeding point, bleeding point is communicated with the recirculating gas duct 18 of the first flue gas blower fan 19 rear end by exhaust tube 20, second flue gas blower fan 21 is installed in exhaust tube 20, from optimization fluid field in furnace of bleeding on four sides, the flue gas that second flue gas blower fan 21 is extracted out enters the temperature that cigarette wind mixing chamber 16 can reduce the flue gas in cigarette wind mixing chamber 16.Be provided with multiple afterbody superheater 12 in the back-end ductwork 11 of evaporating heating surface 13 upper end, each afterbody superheater 12 upper end, evaporating heating surface 13 upper end have bypass exhanst gas outlet, and bypass exhanst gas outlet is communicated with bypass flue 23 by bypass fume pipe 22; All be provided with automatic valve 24 in recirculating gas duct 18, exhaust tube 20, bypass flue 23, realize automatically regulating, the automatic valve 24 in recirculating gas duct 18, exhaust tube 20 is synchronous with the first flue gas blower fan 19, second flue gas blower fan 21 respectively.
The utility model specific works process is as described below: during boiler startup, the heat smoke that igniter produces is blown into central combustion district by wind-distributing bed 7, heating central combustion district, a heat smoke part is again got back to central combustion district by flue gas Inner eycle loop and is burnt, another part upwards enters cyclone separator 9 by burner hearth 2 outlet behind main combustion zone, reenter central combustion district again after the particle separated from cyclone separator 9 enters flue gas Inner eycle loop by loop flue 10 again to burn, the flue gas separated from cyclone separator 9 enters back-end ductwork 11, enter the part heating afterbody superheater 12 of the flue gas of back-end ductwork 11, evaporating heating surface 13, air preheater 14 is finally discharged boiler and is entered flue gas processing device, air distributor box 15 on air preheater 14 blows out First air and Secondary Air, First air can directly enter air compartment 8, also cigarette wind mixing chamber 16 can be introduced into, flue gas another part enters cigarette wind mixing chamber 16 through recirculating gas duct 18, air compartment 8 is entered again after mixing with First air, these flue gases do not flow through heating surface, reenter central combustion district in burner hearth 2 to heat central combustion district thus to reduce igniting oil consumption.
Central combustion district starts feed after being heated to uniform temperature, rubbish, mud, the solid fuels such as coal enter feed hopper 1, enter in the screw(-type) feeder 25 of feed hopper 1 lower end connection, screw(-type) feeder 25 starts feeding, the preheating channel 26 of solid fuel first through being tilted to lower layout carries out preheating, increase heating surface area after entrance tilts and contribute to solid fuel slide downward simultaneously, solid fuel after preheating enters the burning of central combustion district, the rubbish of drying and higher temperature, mud, the solid fuels such as coal are at the convection heat transfer' heat-transfer by convection of high-temperature flue gas, the radiant heat transfer of front and back arch, ignition point is reached with constantly heating up under the conduction of heat of furnace charge, now First air can be passed into, in First air and cigarette wind mixing chamber 16, the mixture of flue gas enters central combustion district and hot rubbish through air compartment 8 and wind-distributing bed 7, mud, the solid fuel reactive combustion such as coal, now just igniter can be closed, with rubbish, mud, the heat that the solid fuel ignitions such as coal produce, continue heating central combustion district and main combustion zone, temperature when main combustion zone reaches requirement, can Secondary Air be blown into and reduce First air ratio in the mixture, when central combustion district and main combustion zone normally work, and when temperature constantly raises, just can adjust the temperature of heat smoke, the heat absorption ratio of afterbody superheater 12 and evaporating heating surface 13 is adjusted by the automatic valve 24 opened in bypass fume pipe 22, adjustment steam quality, adapt to the load variations of boiler.The mixture temperature of flue gas and the temperature of oxygen content control core combustion zone in continuous adjustment First air and cigarette wind mixing chamber 16, flue gas flow in continuous adjustment bypass flue 23 controls outlet vapor quality, until boiler reaches the fired state of stable ideal, boiler export steam reaches desirable quality.
This boiler has the varying duty scope of suitability of fuel and broadness widely.Circulation fluidized bed fluidisation Air Quantity Required is definite value, based on fuel Air Quantity Required, and determine the amount of the mixture of flue gas in First air and cigarette wind mixing chamber 16, fluid effect does not rely on fuel input amount, can reach best fluid effect in the scope of broadness.Central combustion district is made to keep higher temperature and heat endurance by the higher thermal capacity of front, two rear arch and the flue gas Inner eycle in central combustion district, condition is created for realizing controlled burning, extracted by the exhaust gas volumn of diverse location, control the mixture temperature of flue gas in First air and cigarette wind mixing chamber 16, the temperature in control core combustion zone; By controlling the cold air flows passed through in the first rear arch 4 inner support pipeline, controlling the temperature of the first rear arch 4, carrying out the temperature in control core combustion zone; In addition by the combustion heating amount of the oxygen content control core combustion zone in control flow check wind transmission, reach the object of the temperature in control core combustion zone.No matter make boiler be varying duty or can smooth combustion to different fuel like this.Be provided with gas bypass flue 23 in boiler, control the caloric receptivity of heating surface, adjust the heat absorption ratio of evaporating heating surface and afterbody superheater simultaneously, control the quantity of steam produced, make boiler can keep boiler export steam quality in varying duty situation.So this boiler has the varying duty scope of suitability of fuel and broadness widely.
This boiler can reach optimization environmental protection combustion efficiency.Core space is made to keep higher temperature and heat endurance by the higher thermal capacity of front, two rear arch and the flue gas Inner eycle in central combustion district, condition is created for realizing controlled burning, allow central combustion district can reach the environmental protection combustion system of anaerobic cracking, destructive distillation, gasification (to the high flammable fuel of high heating value) anoxycausis (to low heat value, nonflammable fuel), simultaneously this region can as circulation fluidized bed equally carry out the harmless treatments such as desulphurization and denitration, the central combustion district of anaerobic or hypoxemia effectively can control the generation of harmful substance.Through the flue gas of environmental protection treatment and fuel and flammable reaction product, in the main combustion zone in the exit in central combustion district, under the oxygen-enriched combusting environment that Secondary Air is created, efficient burning, the kinetic energy that Secondary Air produces, accelerate the flue gas Inner eycle in central combustion district, flue gas Inner eycle makes medium material particles enter central combustion district again with flue gas, completes combustion process next time; Bulk materials moves up and down in central combustion district, constantly diminishes until complete combustion process, and granule with flue gas upwards, reenters flue gas Inner eycle loop through post-mature, efficiently cyclone separator after being separated, carries out combustion process next time.So this kind of combustion process is controlled burning, optimum environmental protection combustion efficiency can be reached, and fuel after-flame can be improved the thermal efficiency of boiler.
Boiler implosion of the present utility model is simple, direct, efficient, continuous, controls can reach best combustion efficiency to various fuel by adjustment.Central combustion district makes boiler have very high heat endurance owing to adopting the last front and back of rear two arch and flue gas Inner eycle technology, control temperature, control flow check wind transmission in arch include oxygen content control heat output of fuel by the temperature, the control cold air flows that control flue gas recycled, these methods, make ignition temperature accurately adjustable.Simple, the easy cost of investment of control method is low.
Boiler of the present utility model, owing to adopting flue gas recirculating technique, makes flue gas flow rate accelerate, and improves heat transfer efficiency, and effective minimizing stove internal heating surface, reduces boiler cost of investment greatly, especially obvious to low calorie fuels effect.This flue gas recirculating technique is not additionally added to stove air capacity and exhaust gas volumn of coming out of the stove, and does not thus increase heat loss due to exhaust gas.Simultaneously owing to adopting the combustion system of fluidisation, reactive combustion is violent, higher than the fuel processing efficiency of the low-calorific-value solid fuel such as fire grate garbage, mud boiler.
The low-calorific-value solid fuel boilers such as relative fire grate garbage, mud, owing to taking combustion in CFB mode, make the good uniform particle sizes availability of lime-ash quality of this boiler good, and concentrate from dust leg and put ash, structure is simply invested little, and lime-ash processing cost is low.Owing to adopting Cyclone Separation Technology, in boiler export flue gas, fly ash content is little, and processing cost is low.Relative to general circulating bed boiler, because this boiler adopts the two stage environmental protection controlled burning mode of anaerobic, anoxic and oxygen enrichment, adopt the harmless treatment mode of burner hearth central combustion district desulphurization denitration.Thus the effective discharge reducing harmful substance, reduce fume treatment cost of investment and operating cost.
Because boiler combustion of the present utility model and heat absorption are two controlled, effectively can reduce igniting oil gas consumption, greatly reduce ignition trigger cost.During igniting, heat smoke, by the flue gas of the core space that burns and flue gas recirculation loop, does not flow through heating surface, reenters heating flame room, combustion chamber thus reduces igniting oil consumption.In combustion chamber front and back arch on the wear-resisting pouring material of heat accumulation, absorb heat be used for smooth combustion and unlike igniting oil gas a large amount of during other ignitions of the boiler produce heat for heating heating surface.
Claims (8)
1. a solid fuel gasification burning boiler, it comprises feed hopper, described feed hopper connects burner hearth, it is characterized in that, described burner hearth comprises the face arch be in tilted layout in turn, first rear arch, second rear arch, after described first, the pitch of arch is lower than described face arch, the pitch of arch after second, described face arch, first rear arch surrounds central combustion district, described first rear arch, second rear arch surrounds flue gas Inner eycle loop, gap is left between described first rear arch lower end and described second rear arch, described burner hearth bottom below described first rear arch lower beveled is provided with wind-distributing bed, described wind-distributing bed lower end is connected with air compartment, the described face arch of described first rear arch upper end, second rear arch surrounds main combustion zone, described furnace outlet connects cyclone separator, particle port of export link circuit flue one end of described cyclone separator, smoke outlet connects back-end ductwork, the described loop flue other end is communicated with described flue gas Inner eycle loop, afterbody superheater is installed in described back-end ductwork, evaporating heating surface, air preheater, described air preheater is installed air distributor box, described air distributor box comprises First air passage, secondary air channel, air compartment described in described First air channel connection, described secondary air channel is communicated with overfire air device, described overfire air device is installed on described face arch, the import of described overfire air device is downward-sloping towards described flue gas Inner eycle loop.
2. a kind of solid fuel gasification burning boiler according to claim 1, it is characterized in that, the described back-end ductwork of described afterbody superheater upper end is communicated with flue gas recirculation device, described flue gas recirculation device comprises recirculating gas duct, the cigarette wind mixing chamber of the first flue gas blower fan be installed in recirculating gas duct, connection recirculating gas duct end, the described back-end ductwork of described evaporating heating surface lower end has bleeding point, described bleeding point is communicated with the described recirculating gas duct of described first flue gas blower fan rear end by exhaust tube, is provided with the second flue gas blower fan in described exhaust tube.
3. a kind of solid fuel gasification burning boiler according to claim 2, it is characterized in that, described First air passage comprises the first wind passage, the second wind passage, described first wind passage is directly communicated with described air distributor box and described air compartment, air distributor box described in described second wind channel connection and described cigarette wind mixing chamber, the port of export of described cigarette wind mixing chamber is communicated with described air compartment.
4. a kind of solid fuel gasification burning boiler according to claim 3, it is characterized in that, in the described back-end ductwork of described evaporating heating surface upper end, multiple afterbody superheater is installed, each described afterbody superheater upper end, evaporating heating surface upper end have bypass exhanst gas outlet, and described bypass exhanst gas outlet is communicated with bypass flue by bypass fume pipe.
5. a kind of solid fuel gasification burning boiler according to claim 4, is characterized in that, be all provided with automatic valve in described recirculating gas duct, exhaust tube, bypass flue.
6. a kind of solid fuel gasification burning boiler according to claim 1, is characterized in that, described feed hopper lower end is communicated with screw(-type) feeder, and described screw(-type) feeder connects burner hearth by the preheating channel being tilted to lower layout.
7. a kind of solid fuel gasification burning boiler according to claim 1, is characterized in that, described face arch has passage.
8. a kind of solid fuel gasification burning boiler according to claim 1, is characterized in that, is supported in described first rear arch by cold-air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520261277.XU CN204704820U (en) | 2015-04-28 | 2015-04-28 | Solid fuel gasification burning boiler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520261277.XU CN204704820U (en) | 2015-04-28 | 2015-04-28 | Solid fuel gasification burning boiler |
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| CN204704820U true CN204704820U (en) | 2015-10-14 |
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| CN201520261277.XU Withdrawn - After Issue CN204704820U (en) | 2015-04-28 | 2015-04-28 | Solid fuel gasification burning boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791807A (en) * | 2015-04-28 | 2015-07-22 | 无锡华光锅炉股份有限公司 | Solid fuel gasification incineration boiler |
-
2015
- 2015-04-28 CN CN201520261277.XU patent/CN204704820U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791807A (en) * | 2015-04-28 | 2015-07-22 | 无锡华光锅炉股份有限公司 | Solid fuel gasification incineration boiler |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151014 Effective date of abandoning: 20170517 |