CN202124600U - Air-water vapor biomass gasification system - Google Patents
Air-water vapor biomass gasification system Download PDFInfo
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- CN202124600U CN202124600U CN2011202184317U CN201120218431U CN202124600U CN 202124600 U CN202124600 U CN 202124600U CN 2011202184317 U CN2011202184317 U CN 2011202184317U CN 201120218431 U CN201120218431 U CN 201120218431U CN 202124600 U CN202124600 U CN 202124600U
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- water vapor
- gasifier
- gasification system
- pipeline
- biomass
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Abstract
The utility model discloses an air-water vapor biomass gasification system. The air-water vapor biomass gasification system comprises an unloading chamber, a lifter, a material cabin, a conveyor belt, a casthouse material cabin, a spiral conveyor, a gasifier, a cyclone separator, a scattering device, an air blower and the like, wherein a combustion chamber of the gasifier is communicated with a vapor boiler through at least one water vapor pipeline, and water vapor produced by the vapor boiler is input into the combustion chamber through the water vapor pipeline, and is in gasification reaction with reactants produced during the pyrolyzation and combustion process of a biomass fuel. As air serves as a gasification agent, and the gasifier is provided with the water vapor pipeline, water vapor is introduced as the gasification agent to involve in the gasification reaction, so that a biomass fuel gas of an intermediate heat value is obtained after the biomass fuel is pyrolyzed, combusted and gasified; and moreover, heat value is increased by 30%-40%, and yield of the fuel gas is increased by 20%.
Description
Technical field
The utility model relates to a kind of gasification field, specifically relates to a kind of device systems that utilizes biomass fuel to prepare biological fuel gas.
Background technology
Biological fuel gas is a kind of green energy resource of alternative fossil energy; Its raw material is a biomass material; Like straw, bagasse, rice bar, rice husk (chaff), culled wood, bark, sawdust, wood chip etc.; Through equipment for gasification to its high temperature (more than 650 ℃) pyrolytic reaction after, can make biological fuel gas.
Gasifying biomass is produced the biomass energy thermochemistry transform mode that combustion gas is a kind of advanced person, and wherein, the gasification of biomass air-water vapor is that a kind of investment is relatively low, and the aerogenesis quality is gasification process preferably also.In this gasification, the needed heat of steam reformation can be supplied with by the partial combustion of air.But this gasification mode is not used widely, and reason is that water vapor adding point is too concentrated, makes water vapor incomplete with mixing of anti-reactant; Cause reaction insufficient; The output capacity of the biological fuel gas that finally causes preparing is low, and calorific value is low, can't heavy industrialization.The combustion technology of air-water vapor gasifier mainly is that the fire grate grate firing burns and fluidized bed combustion, and wherein, adopting the shortcoming of fire grate grate firing technology is that fuel combustion is incomplete, and excess air ratio is higher, causes thermo-efficiency on the low side; The person as adopting fluid-bed combustion furnace, generally is to be applied to large-sized boiler in addition, and its investment is huge, and production cost is high, can not in medium-sized and small enterprises, try hard to recommend application greatly.
The utility model content
In order to solve the problem that prior art exists, the utility model provides a kind of can prepare high heating value, gasification system that production rate is high.
In order to realize above purpose, the technical scheme of the utility model is following: a kind of biomass air-water vapor gasification system, form by following equipment: between discharging, be used to collect the biomass fuel that transport trolley obtains; Lift is used for the biomass fuel between discharging is delivered to feed bin; Feed bin is used to store biomass fuel; Conveying belt is used for the biomass fuel of feed bin is delivered to the stokehold feed bin; The stokehold feed bin is used to nurse one's health biomass fuel; Worm conveyor is used for quantitatively carrying biomass fuel; Gasifier is used to prepare biological fuel gas; Cyclonic separator is used for uncombusted particle and impurity that the separating biomass combustion gas contains; Bleeding device is used to discharge the biological fuel gas of overvoltage; Gas blower is used for carrying air to gasifier; The combustion chamber of said gasifier is communicated with steam boiler through at least one road water vapor pipeline, the water vapor that steam boiler produces through the water vapor pipeline be input in the combustion chamber with the biomass fuel thermal decomposition combustion processes in the reaction of reactant generating gasification.
Further, said combustion chamber is communicated with three road water vapor pipelines, and every road water vapor pipe outlet is in different positions in the combustion chamber.
The inlet of said water vapor pipeline connects the water vapor divider, and the water vapor divider quantitatively is assigned to water vapor in the water vapor pipeline of every road.
Said water vapor divider is a ring shape structure pipeline, the water vapor pipeline on the water vapor divider around circle center's uniform distribution radially.
Said every road water vapor pipeline is equipped with stopping valve and/or tensimeter.
The inlet of said water vapor divider connects the water vapor house steward, and its outlet connects water discharge valve, like drain valve.
Said water vapor house steward installs reducing valve and/or under meter.
The wall body of said gasifier offers at least one through hole and this through hole is communicated with the water vapor pipeline, and through-hole wall and combustion chamber inwall are tangent, and water vapor is input in the combustion chamber by the through hole tangential and participates in gasification reaction, produces biological fuel gas.
Extexine parcel one deck outer cylinder body of said gasifier wall body, outer cylinder body forms cooling room with protecting layer appearance, fills in the cooling room to have mobile quench liquid, and quench liquid and thermal insulation layer carry out heat exchange, are provided with some back up pads between said wall body and the urceolus.
The mouth that diffuses of said bleeding device is communicated with through gas pipeline with the gas inlet of gasifier, realizes the unnecessary combustion gas of overvoltage is input to the gasifier circulating combustion.
Compared with prior art,, be provided with the water vapor pipeline, introduce water vapor and participate in gasification reaction, make calorific value (1800～2000Kcal/N m in biomass fuel thermal decomposition burning and the acquisition of gasification back as vaporized chemical at gasifier owing to on the basis of air as vaporized chemical
3) biological fuel gas, calorific value improves 30～40%, the combustion gas output capacity improves 20%.In the combustion processes of gasifier, the biomass fuel of heat energy source in gasifier that gasification reaction is required realized autothermal equilibrium.Water vapor is input in the combustion chamber of gasifier by multichannel water vapor pipeline; Import water vapor with discrete form from different positions; Make and the internal reaction thing that burns (gas that biomass carbon and pyrolysis and combustion produce) thorough mixing, further gasification reaction reaches purpose more completely.
Description of drawings
Fig. 1 is the composition diagram of gasification system.
Fig. 2 is the steam pipe line structure synoptic diagram of gasifier.
Fig. 3 is the structural representation of gasifier body of heater.
Fig. 4 is the side structure signal of gasifier body of heater.
Below, in conjunction with most preferred embodiment the utility model is further specifically described.
Embodiment
As shown in Figure 1; The utility model biomass air-water vapor gasification system, by between discharging 10, lift 14, storage bin 8, conveying belt 13, oblique angle conveying belt 9, stokehold feed bin 6, worm conveyor 7, gasifier 1, primary cyclone 2, bleeding device 12, secondary cyclone 3, gas blower 4, heat exchanger 5 form.
As shown in Figure 2, the utility model gasifier be one 0.5 ton/time vapourizing furnace, be best with the fluidized-bed.The body of heater 15 of gasifier connects water vapor pipeline assembly, high-temperature water vapor is provided for the combustion chamber 16 in the body of heater 15.The combustion chamber is the cylindrical body of hollow.The wall body of body of heater 15 (combustion chamber) is offered three through holes 24, and through hole 24 is circumference on the xsect of body of heater 15 arranges that evenly the position of through hole 24 is positioned at zone of combustion.Water vapor pipeline assembly is made up of three road water vapor pipelines 25, water vapor divider 17 and water vapor house steward 18.Water vapor divider 17 is the circle shape, and circle side connects three road water vapor pipelines 25 in it, and each road water vapor pipeline 25 also is circumference evenly to be arranged, each road water vapor pipeline 25 is communicated with through hole 24 straight lines.The inlet of water vapor divider 17 connects water vapor house steward 18, and outlet connects drain valve 26.Each road water vapor pipeline 25 all is equipped with tensimeter 27 and stopping valve 23.Water vapor house steward 18 is equipped with tensimeter 20, under meter 21 and reducing valve 22.One 0.5 ton of the total pipe coupling of water vapor/time steam boiler 19.
Like Fig. 3 and shown in Figure 4, the main body of vapourizing furnace (body of heater) is made up of thermal insulation layer 32, lighter for ignition, blower fan 36, liquidometer 34, explosive door, manhole, flame-observing hole and body skin 28, laterally places on the whole.Thermal insulation layer 32 is the round shape of hollow, and its inner cylindrical cavity is as combustion chamber 16.The material of thermal insulation layer 32 is a high temperature material, and its interior welds is densely covered with the J-shaped bitch, to reinforce thermal insulation layer 32.Offer three opening for feeds 31 on the wall body of thermal insulation layer 32, the wall body of the sidewall of opening for feed 31 and thermal insulation layer 32 is tangent.The inlet of opening for feed 31 communicates with air compartment 33, and air compartment 33 is communicated with blower fan 36 through airduct 35.When biomass powder during from opening for feed 31 entering combustion chambers, blower fan 36 is blown into air to opening for feed 31 tangentials, and powder cyclone type in combustion chamber 16 is rolled, and burns with the air thorough mixing.The outer wall of thermal insulation layer 32 is coated with body skin 28, is provided with some back up pads 29 between thermal insulation layer 32 and the body skin 28.Back up pad 29 is a toroidal, offers 90 ° of breach around it, and the breach of every back up pad helps increasing the vibratility of current towards having nothing in common with each other.Space between thermal insulation layer 32 and the body skin 28 forms cooling room, and water can be filled in the inside.The top of body skin 28 connects vapor pipe 30 (being communicated with cooling room), is used for the steam of cooling room is discharged.Cooling room connects liquidometer 34, is used to keep watch on the water level of cooling room.
The axial inwall of through hole 24 and the inwall of combustion chamber 16 are tangent, help the water vapor tangential and are input in the combustion chamber 16, with the reactant thorough mixing in the combustion chamber.
The discharging opening of bleeding device 12 connects circulation line 11, and circulation line 11 is linked in the combustion chamber 16 of vapourizing furnace, gives the combustion chamber recycle.
The working process of native system is following: biomass fuel is from 10 rising to storage bin 8 by lift 14 and store between discharging, when needing system gas, fuel from storage bin 8 through horizontal conveying belt 13 and oblique angle conveying belt 9 entering stokehold feed bins 6; Quantitatively be input to gasifier 1 through stirring the back by worm conveyor 7, at this moment, gas blower 4 is to gasifier 1 air-supply; To provide burning required air, control air equivalence ratio ER is 0.25, adds catalyzer; Like rhombspar, peridotites, aluminum oxide etc., firing biomass fuel produces reactant (biomass carbon and reactant gases) under normal pressure or pressure-fired condition, when the gasifier internal temperature reaches 850 ℃ of left and right sides; 120 ℃ the water vapor and the reactant that feed 0.6Mpa are participated in gasification reaction, and control water vapor/biomass fuel mass ratio S/B is 0.5, through the 2s left and right sides reaction times; Produce biological fuel gas, the solid waste that wherein produces is discharged outside the gasifier, then; Combustion gas and not the biomass fuel of complete reaction get into primary cyclone 2, purer combustion gas and thin ash entering secondary cyclone 3 are finally isolated pure combustion gas after separating; And some the ash and the carbon of complete reaction do not return gasifier 1 recycle; Pure combustion gas gets into the air that heat exchanger 5 heating are used to react, and after heat exchange, supplies industrial production after combustion gas is lowered the temperature; Unnecessary combustion gas is returned the gasifier recycle by circulation line 11 after getting into bleeding device 12 processing.
Claims (10)
1. biomass air-water vapor gasification system, form by following equipment:
Between discharging, be used to collect the biomass fuel that transport trolley obtains;
Lift is used for the biomass fuel between discharging is delivered to feed bin;
Feed bin is used to store biomass fuel;
Conveying belt is used for the biomass fuel of feed bin is delivered to the stokehold feed bin;
The stokehold feed bin is used to nurse one's health biomass fuel;
Worm conveyor is used for quantitatively carrying biomass fuel;
Gasifier is used to prepare biological fuel gas;
Cyclonic separator is used for uncombusted particle and impurity that the separating biomass combustion gas contains;
Bleeding device is used to discharge the biological fuel gas of overvoltage;
Gas blower is used for carrying air to gasifier;
It is characterized in that the combustion chamber of said gasifier is communicated with steam boiler through at least one road water vapor pipeline.
2. gasification system according to claim 1 is characterized in that, said combustion chamber is communicated with three road water vapor pipelines, and every road water vapor pipe outlet is in different positions in the combustion chamber.
3. gasification system according to claim 2 is characterized in that, the inlet of said water vapor pipeline connects the water vapor divider, and the water vapor divider quantitatively is assigned to water vapor in the water vapor pipeline of every road.
4. gasification system according to claim 3 is characterized in that, said water vapor divider is a ring shape structure pipeline, the water vapor pipeline on the water vapor divider around circle center's uniform distribution radially.
5. gasification system according to claim 4 is characterized in that, said every road water vapor pipeline is equipped with stopping valve and/or tensimeter.
6. gasification system according to claim 5 is characterized in that, the inlet of said water vapor divider connects the water vapor house steward, and its outlet connects water discharge valve.
7. gasification system according to claim 6 is characterized in that, said water vapor house steward installs reducing valve and/or under meter.
8. gasification system according to claim 1; It is characterized in that; The wall body of said gasifier offers at least one through hole and this through hole is communicated with the water vapor pipeline; Through-hole wall and combustion chamber inwall are tangent, and water vapor is input in the combustion chamber by the through hole tangential and participates in gasification reaction, produces biological fuel gas.
9. gasification system according to claim 1; It is characterized in that; Extexine parcel one deck outer cylinder body of said gasifier wall body, outer cylinder body forms cooling room with protecting layer appearance, fills in the cooling room to have mobile quench liquid; Quench liquid and thermal insulation layer carry out heat exchange, are provided with some back up pads between said wall body and the urceolus.
10. gasification system according to claim 1 is characterized in that, the mouth that diffuses of said bleeding device is communicated with through gas pipeline with the gas inlet of gasifier, realizes the unnecessary combustion gas of overvoltage is input to the gasifier circulating combustion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202184317U CN202124600U (en) | 2011-06-24 | 2011-06-24 | Air-water vapor biomass gasification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202184317U CN202124600U (en) | 2011-06-24 | 2011-06-24 | Air-water vapor biomass gasification system |
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| Publication Number | Publication Date |
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| CN202124600U true CN202124600U (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202184317U Expired - Fee Related CN202124600U (en) | 2011-06-24 | 2011-06-24 | Air-water vapor biomass gasification system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367392A (en) * | 2011-06-24 | 2012-03-07 | 广州迪森热能技术股份有限公司 | Biomass air-vapor gasifying system |
| CN112696824A (en) * | 2020-12-18 | 2021-04-23 | 广西贵港市西江节能锅炉有限公司 | Biomass combustion boiler |
-
2011
- 2011-06-24 CN CN2011202184317U patent/CN202124600U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367392A (en) * | 2011-06-24 | 2012-03-07 | 广州迪森热能技术股份有限公司 | Biomass air-vapor gasifying system |
| CN112696824A (en) * | 2020-12-18 | 2021-04-23 | 广西贵港市西江节能锅炉有限公司 | Biomass combustion boiler |
| CN112696824B (en) * | 2020-12-18 | 2022-05-20 | 广西贵港市西江节能锅炉有限公司 | Biomass combustion 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20200624 |