CN205974416U - Living beings downdraft gasification air feed and heating system - Google Patents

Abstract

The utility model discloses a living beings downdraft gasification air feed and heating system, including gasification system, heating system, control system, gasification system includes charge -in system, and gasification reduction system arranges grey slag output system, dust removal cooling system, heating system includes waste heat recovery hot -water heating system, cooling system, charge -in system, gasify reduction system and arrange grey slag output system by last under to the order connect, dust removal cooling system with arrange grey slag output system and be connected, hot water system configuration in gasification system and dust removal cooling system's periphery, cooling system is continuous with the hot -water heating system. Its advantage is: entire system forms a complete gasification and heating system, and the science is planned as a whole, forms the automatic air feed and the heating system of a clean environmental protection. Each sub - device structure science is and compact, and the automation is competent, convenient to use, and it is high -efficient to produce gas, and the clean low temperature of giving vent to anger is energy -concerving and environment -protective, to enlarge to use can palingenetic biomass energy source the application have the active pushing effect.

Description

A kind of living beings downdraft gasification supply and heating system

Technical field

The utility model is related to a kind of kitchen range, particularly to a kind of gas with the biomass material such as fuel wood and stalk as fuel Change combustion stove.

Background technology

China is large agricultural country, has the biomass energies such as fuel wood and the stalk of abundance, in the exploitation of biomass energy In, conventional mode is direct combustion or gasifying electricity generation, but, need when direct combustion uses often to add fuel wood to cooking stove, using not side Just, gasifying electricity generation is limited to cost, and economic benefit is not good, and cannot large-scale promotion application.Traditional cooking stove is to fuel wood and stalk Using with a long history, traditional cooking stove because using inconvenience, utilization rate of heat value is low, general only 15% to 20%, big to air pollution.? Vast rural area is also gradually abandoned, the exploitation amount leading to biomass energy fewer and feweri it is impossible to renewable in a large number in rural area Fuel wood and stalk effectively utilized.

For this reason, the living beings such as fuel wood and stalk are carried out being gasificated into the small-sized ash discharge dedusting system device of combustible gas and use The biomass gasification and gas-supply of this device and heating system are arisen at the historic moment, and people have invented the updraft type inhaling the combustion gas of generation upwards Cooking range capable of gasifying, but, there are some defects in the cooking range capable of gasifying of updraft type：(1) tar content is high, leads to cooking range capable of gasifying short life, Just it is to increase filter, the problem of Maintenance Difficulty occurs again；(2) aerogenesis is unstable, and the gasification of living beings is difficult to control to, significantly shadow Ring the popularization of cooking range capable of gasifying；(3) aerogenesis calorific value is low, and gasification of biomass not fully leads to aerogenesis calorific value not reach daily making With requiring.

For this reason, inventor invented the applying date be 2011.11.11, Patent No. CN201120444716.2, entitled The gasification, and combustion cooking stove of " a kind of Household biomass fuel-efficient stove ".It includes Bunker, is provided with below Bunker with Bunker even Logical gasification furnace core, the ash-falling chamber connecting under gasification furnace core and with gasification furnace core, and be provided with by conduit in ash-falling chamber side The vigorous fire kitchen range of connection, wherein Bunker include the warehouse of upper and lower opening, the feed bin lid on warehouse upper opening, in warehouse four The air inlet pipe in week with smoke exhaust pipe it is characterised in that described gasification furnace core include connecting with Bunker lower opening aditus laryngis, The cincture build-up of air nozzle being provided with the minimum position of aditus laryngis, and the gasification reactor chamber in the middle part of gasification furnace core；Described cincture Build-up of air nozzle is to tilt 45 degree to be arranged on aditus laryngis, described cincture build-up of air nozzle side is additionally provided with to around poly- The blower fan of collection air nozzle air inlet, is provided with the water tank of the waste heat using gasification furnace core gasification reaction in gasification furnace core periphery, and It is provided with spiral heat exchanger fin, described ash-falling chamber includes ash-pan between water tank and gasification furnace core；Set in described warehouse lower opening Having to control fuel to fall and pieced together by two sectors makes fuel and gasification reactor chamber intercept the combustion of the temperature reducing Bunker Feed bin door.But in the follow-up development of inventor, it has been found that there are many defects：Single blower fan makes cooking stove general power be difficult to reach Require to life routine use；There are some defects in the structure design of gasification furnace core, lead to gasification furnace core poor thermal insulation property, heat resistanceheat resistant Swollen shrinkage poor performance, not exclusively, gasification furnace core internal temperature is not high enough, and tar can not fully occur cracking reaction, tar for gasification The defect such as fail all to remove, cause the biomass fuel aerogenesis such as fuel wood and stalk to stablize undesirable；Often have different during use Thing, such as stone, iron nail, the also coking block of ashes, the aperture of fire grate does not pass through at all, and the time one is long, and gasification furnace is with regard to aerogenesis Unstable, or even completely lost efficacy；Actually used inconvenience, hinders its popularization and application.

For this reason, inventor is improved to technical scheme, Application No. 201510072597.5, a kind of entitled " life The application for a patent for invention of gasification substance cooking stove ".Its main technical schemes is：Bunker top is respectively discharge fume room and material outlet increasing Pressure chamber；It is provided with feed bin lid in the middle of material outlet pumping chamber；Be provided with exhaust gases passes between water tank and combustion chamber, gasification furnace core respectively with fuel Storehouse connects with ash-falling chamber, is provided with the infundibulate fire grate that band trembles apparatus for ash and mobile gate between gasification furnace core and ash-falling chamber；Gasification It is provided with heat-insulation layer, the inwall of the gasification reactor chamber in gasification furnace core is the telescoping tube of retractable between the inside and outside wall of combustion chamber, Gasification reactor chamber upper side wall is provided with air nozzle, is provided with igniter in heat-insulation layer.Its advantage is：Compact conformation, gasified reverse Answer up to 1200 degree of temperature, intensification starting time is short, igniting is convenient, aerogenesis is efficient；Heating water tank can produce hot water, also will be mixed in Tar in biological fuel gas is removed, and energy-conserving and environment-protective improve the service life of related utensil；Remove ashes or the coking of accumulation Block is convenient and swift.But during subsequent use it was found that when as industrial use, also there are some defects：（1）Enter Material is not carried out automating, manually many for taking during industrial aspect, and labour cost is high；（2）Combustion chamber ash discharge divides nor realizes Automation is it is difficult to be connected with industrial automation；（3）In gasification gas, ash content, dust content are high, and inadequate clean environment firendly is not suitable for work Large-scale use in industry；（4）Gasification reaction UTILIZATION OF VESIDUAL HEAT IN is not abundant, and the heat of high temperature in gasification gas does not make full use of.

Utility model content

Exist with heating system for solving existing ash discharge dedusting system device and the biomass gasification and gas-supply using this device Drawbacks described above, the utility model provides a kind of scientific structure, safety, aerogenesis is clean, operation and maintenance is convenient, automaticity High, supply supplies and heating system for the high living beings downdraft gasification of the energy conversion efficiency of hotsync, living beings.

For achieving the above object, the system scheme that the utility model is taken is：

A kind of living beings downdraft gasification supply and heating system, including the gasification that biomass fuel changes into combustible gas System, the waste heat recovery during gasification system is produced the heating system of outward supplying heat, and coordinate gasification system and confession The control system of hot systems work；It is characterized in that：

Described gasification system includes going back, from trend gasification, the feed system that original system adds biomass fuel, by biomass fuel Original system is gone back in the gasification of material switching to combustible gas, the ash discharge slag-tapping system that the solid constituent that original system generation is gone back in gasification is discharged, The combustible gas that original system generation is gone back in gasification is cleaned the dedusting cooling system lowered the temperature；

Described heating system include producing gasification system during waste heat recovery hot-water heating system, and supply to outside The cooling system of heat；

Wherein, feed system, original system is gone back in gasification and ash discharge slag-tapping system is linked in sequence from top to bottom, dedusting cooling system It is connected with ash discharge slag-tapping system, hot-water heating system is arranged at gasification system and the periphery of dedusting cooling system, cooling system and hot water System is connected.

Further illustrating as such scheme, whole system forms a complete gasification and heating system, and science is united Raise, expect that gasification reduction produces combustion gas from biomass fuel, more all take into account to the recovery of waste heat, formation one clean environment firendly, height Imitate compact system.

Aforementioned gasification is gone back original system and is included gasification furnace core, supports the furnace body support of gasification furnace core, located at gasification furnace core top Material outlet, and for gasification furnace core provide air air blast.Living beings are converted into gasification gas combustion gas herein.

Aforementioned ash discharge slag-tapping system includes infundibulate ash sieve, sieves bottom the movable fire grate opened located at infundibulate ash, Ash bucket below fire grate, the helix transporting device that the ashes in ash bucket are discharged, and drive infundibulate ash sieve to make The eccentric screen apparatus for ash of horizontal screen ash action；Eccentric screen apparatus for ash includes support base, eccentric wheel, power transmission shaft, the grey motor of sieve；Transmission Axle is arranged on support base by bearing, and power transmission shaft is located at power transmission shaft upper end, described leakage by sieving grey Motor drive rotation, eccentric wheel The grey sieve of bucket shape has top edge to be circumferentially with the grey seats of several sieves uniform, the quantity of power transmission shaft and eccentric wheel and the quantity phase sieving grey seat With mating, eccentric wheel is provided with the eccentric short axle deviateing power transmission shaft axle center certain distance, and eccentric short axle passes through bearing and the grey seat of sieve Connect；Described fire grate is provided with the gear-linked system controlling fire grate folding, and gear-linked system is mainly by the left side being connected with fire grate Gear and right gear, cylinder are constituted；Left gear and right gear intermesh linkage, and right gear is connected with cylinder；Described spiral transferring Device is sent to include the blast tube communicating with ash bucket side, the delivery pipe being provided with elongate slot below blast tube, conveying What pipe was middle is provided with screw conveyor shaft, and ash discharge motor；Screw conveyor shaft periphery is provided with the helical blade of ash-slag delivery, ash discharge Motor is located at the end of screw conveyor shaft.Screw conveyor shaft rotates under ash discharge Motor drive, and helical blade produces axial force, can Convenient and practical automatic business processing ashes, it is discharged from ash bucket.Cylinder is controlled by control system, it is possible to achieve automation Disposably bulk ashes or other block are cleared up away from infundibulate ash sieve.Shaken by bias, can be by infundibulate Ash content in ash sieve is fully trembled down automatically, prevents from blocking infundibulate ash sieve, affects gasification reaction.Helix transporting device can facilitate real Use automatic business processing ashes, it is discharged from ash bucket；Fire grate can disposably by bulk ashes or other block from leakage Clear up away in bucket shape ash sieve.

Aforementioned feed system is that bucket type feeding apparatus hoisting, screw feeding device, chain bucket continuous feeding device or belt connect Continuous feed arrangement.Automatic feed mode is versatile and flexible, flexibly selects because of needs.

Aforementioned dedusting cooling system includes two or more cyclone separators, the air inducing that cyclone separator is connected Machine, and ash content settling tank；The outlet of cyclone separator bottom extend into ash content settling tank；Cyclone separator periphery sets There is cooling water jacket, if being provided with the solid carbon dioxide in the same direction with whirlwind air inlet above temperature lowering water set to spray mouth, water is sprayed mouth and followed by water curtain Ring water pump is connected with ash content settling tank.Automatically the gasification gas that system produces is carried out purifying, lowers the temperature herein.

Former hotter water system includes furnace water jacket and hot water conveying pipe；Furnace water jacket is matchingly around living beings downdraft gas Change supply and the gasification furnace core of heating system and infundibulate ash sieve setting, hot water conveying pipe respectively with furnace water jacket and ash fractional precipitation Pond is connected；The support base of described eccentric screen apparatus for ash is arranged on furnace water jacket, constitutes for two-layer pipe in the middle of described power transmission shaft, Form two waterway channels, waterway channel is communicated with the end of support base, is provided with the axle sleeve passing through for power transmission shaft in furnace water jacket Pipe, pipe spreader upper and lower ends are provided with bearing；Pipe spreader bottom is provided with cooling jacket, be sequentially provided with the middle of cooling jacket intake antrum and Water chamber, intake antrum is provided with water inlet, and water chamber is provided with delivery port；Intake antrum and water chamber are provided with drive shaft seal even Connect the rubber seal of separation.

Aforementioned control system includes PLC circuit control unit, and the frequency conversion control with the electrical connection of PLC circuit control unit System processed and signal feedback system；Wherein, frequency-changing control system includes air blast frequency converter, air inducing frequency converter, ash sieve frequency converter, row Grey frequency converter；Air blast frequency converter is connected with air blast, and air inducing frequency converter is connected with air-introduced machine, and ash sieve frequency converter is with ash sieve motor even Connect, ash discharge frequency converter and ash discharge motor connection.Control the work of each composition system by control system, it is possible to achieve feed, tremble Ash, purification gasification gas, the full-automatic process of cooling hot water, save artificial, applicable industrial application.

Aforementioned signal reponse system includes cooling-water temperature sensor, hydraulic pressure sensor, gravity sensor and gasification temperature sensor； Wherein, cooling-water temperature sensor and hydraulic pressure sensor are in the furnace water jacket of hot-water heating system；Gravity sensor is located at gasification reduction system On the furnace body support of system；Gasification temperature sensor is on the gasification furnace core that original system is gone back in change.Signal feedback system is passed through various Corresponding control parameter is fed back to PLC circuit control unit by sensor, whole system is carried out certainly by PLC circuit control unit Dynamicization controls.

Aforementioned gasification temperature sensor is thermocouple.

Aforementioned cooling system is the cooling tower carrying out heat exchange with the external world, and cooling tower passes through hot water conveying pipe and hot-water heating system It is connected.Hot water cools down in cooling tower, and the heat transfer in hot water is gone out to realize the heat supply of system, and the water after cooling returns again to Recycle in system.

From the foregoing, it will be observed that the utility model mainly has the advantage that：Whole system forms a complete gasification and heat supply system System, science is planned as a whole, and expects that gasification reduction produces combustion gas from biomass fuel, more all takes into account to the recovery of waste heat, the energy of living beings Amount high conversion efficiency, forms automation supply and the heating system of a clean environment firendly.Each sub-device scientific structure and compact, empty Between make full use of, fully realize the automation of links, automatization level is high, and easy to use, aerogenesis is efficient；Effectively by gas Change the ash content of gas and dust is removed, significantly reduce the pollution to environment, improve the service life of related utensil, energy-saving ring Protect；Ash content or the coking block of removing accumulation are convenient and swift；Actively push away to expanding to have using the application of reproducible biomass energy Action is used.

Brief description

Fig. 1 is system architecture diagram of the present utility model.

Fig. 2 is signal feedback system and the power system architecture schematic diagram of Fig. 1.

Fig. 3 is gasification system and heating system structure schematic diagram, and the arrow of in figure is the flow direction of gasification gas or water.

Fig. 4 is gasification system and the ash discharge slag-tapping system schematic top plan view of Fig. 3.

Fig. 5 is the infundibulate ash sieve of Fig. 3 and the positional structure schematic diagram of eccentric screen apparatus for ash.

Fig. 6 is the complete overlooking the structure diagram of Fig. 5.

Fig. 7 is the positional structure schematic diagram of the infundibulate ash sieve in Fig. 3 and fire grate.

Fig. 8 is the structural representation of the eccentric screen apparatus for ash of Fig. 5.

Fig. 9 is the structural representation of the dedusting cooling system of Fig. 3.

Drawing reference numeral explanation：01- gasification system, 02- heating system, 03- control system；

Original system, 2- feed system, 3- ash discharge slag-tapping system, 4- dedusting cooling system, 6- hot water system are gone back in 1- gasification System, 7- cooling system, 8- PLC circuit control unit, 9- frequency-changing control system, 10- signal feedback system；11- feed bin, 12- gasification furnace core, 13- furnace body support, 14- air blast；

31- eccentric screen apparatus for ash, 32- fire grate, 33- ash bucket, 34- helix transporting device, 35- infundibulate ash sieve； 311- support base, 312- power transmission shaft, the grey motor of 313- sieve, 314- sprocket wheel, 315- eccentric wheel, the grey seat of 316- sieve, 317- is eccentric Short axle, 318- bearing；3161- waterway channel, 3162- pipe spreader, 3163- cooling jacket, 3164- intake antrum, 3165- goes out Water cavity, 3166- water inlet, 3167- delivery port, 3168- rubber seal；321- left gear, 322- right gear, 323- cylinder； 341- blast tube, 342- delivery pipe, 343- screw conveyor shaft, 344- helical blade, 345- ash discharge motor；

41- cyclone separator, 42- air-introduced machine, 43- ash content settling tank, 44- furnace water jacket, 45- hot water conveying pipe； 411- cooling water jacket, 412- whirlwind air inlet, 413- water sprays mouth, 414- water curtain water circulating pump；

71- cooling tower, 72- gas consuming device, 73- discharge flue, 92- air inducing frequency converter, 93- ash sieve frequency converter, 94- ash discharge Frequency converter, 95- cooling-water temperature sensor, 96- hydraulic pressure sensor, 97- gravity sensor, 98- gasification temperature sensor.

Specific embodiment

Below in conjunction with the accompanying drawings and preferred embodiment, the utility model and its Advantageous Effects are carried out detailed further Describe in detail bright.

Referring to Fig. 1 ~ Fig. 9, living beings downdraft gasification supply and heating system 02 include changing into biomass fuel can The gasification system 01 of combustion gas, the heating system 02 of the waste heat recovery during gasification system 01 is produced outward supplying heat, and Coordinate gasification system 01 and the control system 03 of heating system 02 work；Gasification system 01 includes going back original system 1 from trend gasification Add the feed system 2 of biomass fuel, original system 1 is gone back in the gasification of biomass fuel switching to combustible gas, by gasification reduction The ash discharge slag-tapping system 3 that the solid constituent that system 1 produces is discharged, the combustible gas that original system 1 produces is gone back in gasification and is cleaned dropping The dedusting cooling system 4 of temperature；Heating system 02 include producing gasification system 01 during waste heat recovery hot-water heating system 6, And the cooling system 7 to outside heat supply；Wherein, feed system 2, gasification go back original system 1 and ash discharge slag-tapping system 3 from top to bottom It is linked in sequence, dedusting cooling system 4 is connected with ash discharge slag-tapping system 3, hot-water heating system 6 is arranged at gasification system 01 and dedusting cooling The periphery of system 4, cooling system 7 is connected with hot-water heating system 6.

Referring to Fig. 2 ~ Fig. 3, gasification is gone back original system 1 and is included gasification furnace core 12, supports the furnace body support 13 of gasification furnace core 12, if In 11 mouthfuls of the feed bin on gasification furnace core 12 top, and the air blast 14 that air is provided for gasification furnace core 12.

Referring to Fig. 2 ~ Fig. 4, ash discharge slag-tapping system 3 includes infundibulate ash sieve 35, sieves 35 bottoms and can live located at infundibulate ash The dynamic fire grate 32 opened, located at the ash bucket 33 of fire grate 32 lower section, the helix transporting device that the ashes in ash bucket 33 are discharged 34, and drive infundibulate ash sieve 35 to make the eccentric screen apparatus for ash 31 of horizontal screen ash action；Eccentric screen apparatus for ash 31 includes supporting Seat 311, eccentric wheel 315, power transmission shaft 312, the grey motor 313 of sieve；Power transmission shaft 312 is arranged on support base 311 by bearing 318, Power transmission shaft 312 drives rotation by the grey motor 313 of sieve, and eccentric wheel 315 is located at power transmission shaft 312 upper end, and described infundibulate ash sieve 35 has Top edge is circumferentially with the grey seat 316 of several sieves uniform, the quantity of power transmission shaft 312 and eccentric wheel 315 and the quantity sieving grey seat 316 Identical match, eccentric wheel 315 is provided with the eccentric short axle 317 deviateing power transmission shaft 312 axle center certain distance, and eccentric short axle 317 is led to Cross bearing 318 seat 316 grey with sieve to be connected；Described fire grate 32 is provided with the gear-linked system controlling fire grate 32 folding, gear-linked System is mainly made up of the left gear 321 being connected with fire grate 32 and right gear 322, cylinder 323；Left gear 321 and right gear 322 Intermesh linkage, right gear 322 is connected with cylinder 323；Described helix transporting device 34 includes communicating with ash bucket 33 side Blast tube 341, the delivery pipe 342 being provided with elongate slot of blast tube 341 lower section, is provided with spiral shell in the middle of delivery pipe 342 Rotation conveying axis 343, and ash discharge motor 345；Screw conveyor shaft 343 periphery is provided with the helical blade 344 of ash-slag delivery, ash discharge electricity Machine 345 is located at the end of screw conveyor shaft 343.Power transmission shaft 312 is provided with sprocket wheel 314, by being connected by chain between sprocket wheel 314； Can the synchronous interaction of practical each power transmission shaft 312, infundibulate ash sieve 35 trembles ash evenly.

Referring to Fig. 2, feed system 2 is bucket type feeding apparatus hoisting, screw feeding device, chain bucket continuous feeding device or skin Band continuous feeding device.

Referring to Fig. 4 ~ Fig. 9, dedusting cooling system 4 includes two or more cyclone separators 41, cyclone separator 41 air-introduced machines 42 being connected, and ash content settling tank 43；The outlet of cyclone separator 41 bottom extend into grey fractional precipitation water Case 43；Cyclone separator 41 periphery is provided with cooling water jacket 411, is provided with whirlwind air inlet 412 in the same direction above cooling water jacket 411 If solid carbon dioxide sprays mouth 413, water is sprayed mouth 413 and is connected with ash content settling tank 43 by water curtain water circulating pump 414.

Referring to Fig. 2 ~ Fig. 3, Fig. 9, hot-water heating system 6 includes furnace water jacket 44 and hot water conveying pipe 45342；Furnace water jacket 44 Arrange around living beings downdraft gasification supply with the gasification furnace core 12 of heating system 02 and infundibulate ash sieve 35 with joining, hot water is defeated Pipe 45 is sent to be connected with furnace water jacket 44 and grey fractional precipitation pond respectively；The support base 311 of described eccentric screen apparatus for ash 31 is arranged on On furnace water jacket 44, constitute for two-layer pipe in the middle of described power transmission shaft 312, form two waterway channels 3161, waterway channel 3161 Communicate with the end of support base 311, in furnace water jacket 44, be provided with the pipe spreader 3162 passing through for power transmission shaft 312, pipe spreader 3162 Upper and lower ends are provided with bearing 318；Pipe spreader 3162 bottom is provided with cooling jacket 3163, be sequentially provided with the middle of cooling jacket 3163 into Water cavity 3164 and water chamber 3165, intake antrum 3164 is provided with water inlet 3166, and water chamber 3165 is provided with delivery port 3167；Enter Water cavity 3164 and water chamber 3165 are provided with the rubber seal 3168 being tightly connected separation with power transmission shaft 312.

Referring to Fig. 1, control system 03 includes PLC circuit control unit 8, and is electrically connected with PLC circuit control unit 8 Frequency-changing control system 903 and signal feedback system 10；Wherein, frequency-changing control system 903 includes air blast frequency converter 91, air inducing becomes Frequency device 92, ash sieve frequency converter 93, ash discharge frequency converter 94；Air blast frequency converter 91 is connected with air blast 14, air inducing frequency converter 92 with draw Blower fan 42 connects, and ash sieve frequency converter 93 is connected with ash discharge motor 345 with ash sieve motor connection, ash discharge frequency converter 94.

Referring to Fig. 1 ~ Fig. 2, signal feedback system 10 includes cooling-water temperature sensor 95, hydraulic pressure sensor 96, gravity sensor 97 With gasification temperature sensor 98；Wherein, cooling-water temperature sensor 95 and hydraulic pressure sensor 96 are located at the furnace water jacket 44 of hot-water heating system 6 In；Gravity sensor 97 is on the furnace body support 13 that original system 1 is gone back in gasification；Gasification temperature sensor 98 goes back original system located at change Gasification furnace core 12 on.Gasification temperature sensor 98 is thermocouple.

Cooling system 7 is the cooling tower 71 carrying out heat exchange with the external world, and cooling tower 71 passes through hot water conveying pipe 45 and hot water System 6 is connected.

Living beings downdraft gasification supply is as follows with the course of work of heating system 02：Living beings downdraft gasification supply with Heating system 02 passes through feed system 2, automatically and continuously biomass fuel is transported in feed bin 11, fuel leans in feed bin 11 Gravity naturally drops to and carries out combustion gasification in gasification furnace core 12, and air blast 14 sprays oxygen supply in gasification furnace core 12, then exists In gasification furnace core 12 under the high velocity air oxygen supply of injection, the upper bit of gasification furnace core 12 forms the zoneofoxidation of high temperature, oxygen simultaneously Change area under conditions of quantitative infeed oxidant, oxidant runs out of substantially；Reaction produce gas under zoneofoxidation with high temperature Carbon-coating carries out reduction reaction, thus generating biological mass combustable gas gas.Due under the absorption and catalytic action of pyrocarbon layer, in oxygen Change area and the tar of above cracking zone generation is decomposed totally in zoneofoxidation and reducing zone, in the process, multiple chemistry are anti- Should carry out simultaneously, particularly tar destruction thoroughly be formed gasification gas.The ash content constantly producing in redox reaction enters row In grey slag-tapping system 3, little carbon granules and ash content passed through the aperture that infundibulate ash sieves 35, fell in ash bucket 33.In specific feelings Under condition, the non-combustible impurity in ash content and fuel can lump, and is at this moment just processed by fire grate 32, and fire grate 32 can be because of the difference of operating mode Set to fire grate 32 and suitably open the cycle, when fire grate 32 is opened, the impurity of bulk and coking block drop in ash bucket 33, Whole ash content and thick coking block are discharged outside body of heater by helix transporting device 34.In combustion gas through ash bucket 33 and blast tube 341 When, part of ash dust can take in cyclone separator 41 with the air-flow of gasification gas, and ash content dust falls again, and water sprays mouth 413 spray water into cyclone separator 41, form moisture film in cyclone separator 41 inwall, and the dust of whereabouts and carbon distribution are rushed by Water warfare Brush in ash content settling tank 43, finally clean gasification gas combustion gas drains into external pipe through air-introduced machine 42 and extremely uses gas end.

Book and specific embodiment do not constitute any restriction to the utility model according to the above description, and the utility model is not It is confined to specific embodiment disclosed and described above, to some modifications of the present utility model and deformation it should also fall into this In the scope of the claims of utility model.

Claims (9)

1. a kind of living beings downdraft gasification supply and heating system, including the gasification system that biomass fuel changes into combustible gas System, the waste heat recovery during gasification system is produced the heating system of outward supplying heat, and coordinate gasification system and heat supply The control system of system work；It is characterized in that：

Described gasification system includes going back, from trend gasification, the feed system that original system adds biomass fuel, and biomass fuel is turned Original system is gone back in gasification for changing combustible gas, and the ash discharge slag-tapping system that the solid constituent that original system generation is gone back in gasification is discharged, by gas Change go back original system generation combustible gas be cleaned lower the temperature dedusting cooling system；

Described heating system include producing gasification system during waste heat recovery hot-water heating system, and to outside heat supply Cooling system；

Wherein, feed system, original system is gone back in gasification and ash discharge slag-tapping system is linked in sequence from top to bottom, dedusting cooling system and row Grey slag-tapping system connects, and hot-water heating system is arranged at gasification system and the periphery of dedusting cooling system, cooling system and hot-water heating system It is connected.

2. living beings downdraft gasification supply as claimed in claim 1 and heating system, is characterized in that：Described gasification reduction system System includes gasification furnace core, supports the furnace body support of gasification furnace core, located at the material outlet on gasification furnace core top, and is gasification furnace core The air blast of air is provided.

3. living beings downdraft gasification supply as claimed in claim 2 and heating system, is characterized in that：Described ash discharge goes out slag system System includes infundibulate ash sieve, located at the infundibulate ash sieve bottom movable fire grate opened, the ash bucket below fire grate, by The helix transporting device that ashes in ash bucket are discharged, and drive infundibulate ash sieve to make the eccentric screen ash dress of horizontal screen ash action Put；Eccentric screen apparatus for ash includes support base, eccentric wheel, power transmission shaft, the grey motor of sieve；Power transmission shaft is arranged on support base by bearing On, by sieving grey Motor drive rotation, eccentric wheel is located at power transmission shaft upper end to power transmission shaft, and described infundibulate ash sieve has top edge circumference to set There is the grey seat of several sieves uniform, the quantity of power transmission shaft and eccentric wheel is provided with the quantity identical match sieving grey seat, eccentric wheel partially Eccentric short axle with a certain distance from power transmission shaft axle center, eccentric short axle is passed through bearing seat grey with sieve and is connected；Described fire grate is provided with control The gear-linked system of fire grate folding, gear-linked system is mainly made up of the left gear being connected with fire grate and right gear, cylinder； Left gear and right gear intermesh linkage, and right gear is connected with cylinder；Described helix transporting device includes and ash bucket side The blast tube communicating, the delivery pipe being provided with elongate slot below blast tube, what delivery pipe was middle is provided with screw conveyor shaft, And ash discharge motor；Screw conveyor shaft periphery is provided with the helical blade of ash-slag delivery, and ash discharge motor is located at the end of screw conveyor shaft Portion.

4. living beings downdraft gasification supply as claimed in claim 3 and heating system, is characterized in that：Described feed system is Bucket type feeding apparatus hoisting, screw feeding device, chain bucket continuous feeding device or belt continuous feeding device.

5. living beings downdraft gasification supply as claimed in claim 4 and heating system, is characterized in that：Described dedusting cooling system System includes two or more cyclone separators, the air-introduced machine that cyclone separator is connected, and ash content settling tank；Whirlwind The outlet of separator bottom extend into ash content settling tank；Cyclone separator periphery is provided with cooling water jacket, above temperature lowering water set If being provided with the solid carbon dioxide in the same direction with whirlwind air inlet to spray mouth, water sprays mouth and passes through water curtain water circulating pump and ash content settling tank phase Even.

6. living beings downdraft gasification supply as claimed in claim 5 and heating system, is characterized in that：Described hot-water heating system bag Include furnace water jacket and hot water conveying pipe；Furnace water jacket is matchingly around the gasification of living beings downdraft gasification supply and heating system Combustion chamber and infundibulate ash sieve setting, hot water conveying pipe is connected with furnace water jacket and grey fractional precipitation pond respectively；Described eccentric screen ash The support base of device is arranged on furnace water jacket, constitutes for two-layer pipe in the middle of described power transmission shaft, forms two waterway channels, water route Passage is communicated with the end of support base, is provided with the pipe spreader passing through for power transmission shaft in furnace water jacket, and pipe spreader upper and lower ends are provided with Bearing；Pipe spreader bottom is provided with cooling jacket, is sequentially provided with intake antrum and water chamber in the middle of cooling jacket, and intake antrum is provided with Water inlet, water chamber is provided with delivery port；Intake antrum and water chamber are provided with and are connected the rubber seal separating with drive shaft seal.

7. living beings downdraft gasification supply as claimed in claim 6 and heating system, is characterized in that：Described control system bag Include PLC circuit control unit, and the frequency-changing control system with the electrical connection of PLC circuit control unit and signal feedback system； Wherein, frequency-changing control system includes air blast frequency converter, air inducing frequency converter, ash sieve frequency converter, ash discharge frequency converter；Air blast frequency converter with Air blast connects, and air inducing frequency converter is connected with air-introduced machine, and ash sieves frequency converter and ash sieve motor connection, and ash discharge frequency converter is electric with ash discharge Machine connects.

8. living beings downdraft gasification supply as claimed in claim 7 and heating system, is characterized in that：Described signal feedback system System includes cooling-water temperature sensor, hydraulic pressure sensor, gravity sensor and gasification temperature sensor；Wherein, cooling-water temperature sensor and hydraulic pressure Sensor is in the furnace water jacket of hot-water heating system；Gravity sensor is on the furnace body support that original system is gone back in gasification；Gasification temperature Degree sensor is on the gasification furnace core that original system is gone back in change.

9. living beings downdraft gasification supply as claimed in claim 8 and heating system, is characterized in that：Described cooling system is Carry out the cooling tower of heat exchange with the external world, cooling tower is connected with hot-water heating system by hot water conveying pipe.