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CN201396816Y - Circulating tar-free gas storage type straw gasification furnace with double-layered furnace body and multiple air passages - Google Patents

Circulating tar-free gas storage type straw gasification furnace with double-layered furnace body and multiple air passages Download PDF

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Publication number
CN201396816Y
CN201396816Y CN 200920089432 CN200920089432U CN201396816Y CN 201396816 Y CN201396816 Y CN 201396816Y CN 200920089432 CN200920089432 CN 200920089432 CN 200920089432 U CN200920089432 U CN 200920089432U CN 201396816 Y CN201396816 Y CN 201396816Y
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furnace body
air
tar
filter
housed
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CN 200920089432
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陆福明
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/16Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • Y02E20/18Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]

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Abstract

The utility model provides a circulating tar-free gas storage type straw gasification furnace with a double-layered furnace body and multiple air passages. The straw gasification furnace comprises anupper furnace body and a lower furnace body; an inner furnace body is mounted inside the upper furnace body; an air outlet pipe is mounted at the lower part of the furnace body, and is connected witha primary filter outlet where a communicating tube connected with a secondary filter is mounted; a vent-pipe, a secondary blow valve and a vent valve are mounted on the communicating tube; and an aircompressor is mounted between the outlet of the secondary filter and an air storage tank. Through the adoption of the double-layered furnace body, air passes through an upper and lower curved air passage formed by five segregation boards and is cooled, and tar in the air falls into a tar disc and a combustor in sequence for secondary combustion, so that the difficult tar treatment problem is solved, and the air production rate is increased. The fuel used by the gasification furnace can be freely obtained in rural area, no chemical additive is required to be added when the fuel enters into thefurnace, and at the same time, the operation is simple, thereby facilitating the popularization and the use of the straw gasification furnace.

Description

The no tar air storing type stalk gasifier of the many air flue circulations of double-layer furnace body
Affiliated field
This novel stalk gasifier that belongs to, the no tar that relates in particular to a kind of many air flue circulations in double-layer furnace body discharges the air storing type stalk gasifier.
Technical background
Along with The development in society and economy, the demand of the energy increases day by day.China is a large agricultural country, have abundant biomass energy, its stock number is about 5,000,000,000 tons/year, as agricultural crop straw (straw, wheat straw, rice husk, shell, cavings, weeds), forest discarded object (branch, sawdust, wood shavings, the stem class of various plants, the leaf class, the root class, the rattan class), industry organic waste (the pharmaceutical factory of traditional Chinese medicine, press sugar refinery, the residue of cigarette factory), beastly poultry manure etc. all is everywhere, these living beings effective rates of utilization are extremely low, major part is burned or is discarded, both caused serious atmosphere pollution, destroy ecological environment, more it's a pity and wasted valuable resource.For this reason, country clearly emphasizes in playing " People's Republic of China's regenerative resource method " of formal enforcement on January 1st, 2006: country encourages cleaning, develops biomass fuel, encourage growth energy crop efficiently." the regenerative resource development special fund management Tentative Measures " implemented in 2006 provide strong fund guarantee for the development and utilization of regenerative resource.In April, 2007, National Development and Reform Committee has announced " biological industry development Eleventh Five-Year Plan ", point out: " greatly developing bioenergy and bio-based materials; quicken the extensive use of biological manufacturing technology in high flow rate, high pollution industry; both helped reducing the dependence of China to non-renewable energy resources such as oil, coals; help advancing cleaner production again, reduce pollutant emission, is the important leverage of taking a new road to industrialization, realize sustainable development ".In July, 2007, " agro-ecology mass-energy industrial development planning (2007-2015) " clear and definite especially proposition that the Ministry of Agriculture puts into effect, build a collection of straw solidification shaped fuel and use demonstration pilot project and gasifying stalk central gas supply station, utilize marginality soil optimum development energy crop, satisfy the raw material needs of country liquid fuel.Also clearly propose in the Eleventh-Five Year Plan " accelerating development regenerative resources such as wind energy, solar energy, biomass energy ".Build a resource-conserving society for quickening, the comprehensive utilization of biological renewable energy has become key subjects, is the focus development project that country actively supports always, and puts into effect multinomial policies and measures and help the peasant that stalk is not burned utilization again.Stalk gasifier project as the biological renewable energy comprehensive utilization, progressively promoted the use of since 86 years in China, contained carbon compound is converted into and contains carbon monoxide (CO), methane and hydrogen fuel gas such as (H2) in the plant such as straw in gasification furnace, as using energy source.But the emission problem of tar in the gasification furnace, formed the inadequate natural endowment of stalk gasifier, and never obtain fine solution, seriously influenced applying of stalk gasifier project, and cause the certain economic loss to produce harmful effect in some areas.In marketing, press for a kind of disposable reinforced, can continuous burning, no tar discharging, can produce pure combustion gas and can store, continuous air feed, gasification stove durable, easy to use.
Summary of the invention
This novel purpose is: a kind of stalk gasifier is provided, utilize straw, wheat straw, corn stalk, branch, wood chip or compacting raw material etc. to make fuel, directly into stove, disposable reinforced, can continuous burning, no tar discharging, fuel gas is pressed into air accumulator by filter and pipeline by air compressor machine, is connected with kitchen range then, air feed continuously, durable, pollution-free, easy to use gasification stove.
This novel technical scheme is in order to achieve the above object: the no tar air storing type stalk gasifier of the many air flue circulations of a kind of double-layer furnace body, it is made up of upper and lower body of heater, escape pipe is equipped with in the bottom of upper furnace body, the other end of escape pipe connects grade one filter, and the import that is connected secondary filter communicating pipe is equipped with in the outlet of grade one filter.Blast pipe was housed on communicating pipe, secondary blast valve and air bleeding valve are housed on the blast pipe, air compressor machine is equipped with in the outlet of secondary filter, and the outlet of air compressor machine is equipped with and is linked to each other with the bottom of air accumulator communicating pipe, and the top of air accumulator is equipped with snorkel and is connected to kitchen range.The air intake distribution plate is equipped with in the bottom of lower furnace body, ajutage is housed below the air intake distribution plate, and the other end of ajutage is equipped with blower fan, also is connected with the secondary blast pipe on the ajutage, and the other end of secondary blast pipe is contained between the secondary blast valve and air bleeding valve of blast pipe.It is characterized in that: inner furnace body is equipped with in the inside of upper furnace body, uniform five division boards between upper furnace body and the inner furnace body, the tar dish is equipped with in the middle part of upper and lower body of heater, the high outside and low outside one-tenth tilted shape of tar dish, leave the gap between tar dish and the inner furnace body, the lower edge of inner furnace body is lower than the tar dish.
For purifying gas is serially connected with grade one filter and secondary filter on communicating pipe, two filtration device structures are identical, and the filter internal upper part is equipped with screen pack and active carbon, and the bottom is sewage groove and has blowoff valve to communicate with the external world.
For further purifying gas and the more fuel gas of storage, between the air storage chamber on air accumulator top and the filter chamber, bottom the levels dividing plate is housed, on the levels dividing plate check valve is housed, two-layer filter and active carbon up and down are housed in the filter chamber, bottom.
This novel beneficial effect is: owing to adopted double-layer furnace body, the last lower curve air flue that gas is formed through 5 division boards, cool off, tar in the gas is attached in cool cycles on body of heater and the division board slowly to be assembled, owing in the body of heater certain temperature is arranged, tar after the gathering flows downward, fall into the tar dish, flow into the combustion chamber then and burn once more, not only solved unmanageable tar problem, increased gas production again, fuel used not the spending money in the rural area of gasification furnace can freely obtain, fuel is gone into stove need not add any chemical assistant, simultaneously simple to operate, therefore helps the popularization and the use of stalk gasifier.
Description of drawings
Below in conjunction with accompanying drawing and further specify novel by embodiment.
Fig. 1 is the overall structure schematic diagram of embodiment;
Fig. 2 is a upper furnace body division board distribution schematic diagram;
Fig. 3 is the air-flow flow schematic diagram between division board that launches;
Fig. 4 is the view of tar dish between interior external furnace body;
Among the figure: 1, leg; 2, air intake distribution plate; 3, combustion chamber; 4, lower furnace body; 5, upper furnace body; 6, division board; 7, vaporizer; 8, air bleeding valve; 9, tank; 10, loam cake; 11, steam vent; 12, division board; 13, gas outlet; 14, escape pipe; 15, communicating pipe; 16, secondary blast valve; 17, air bleeding valve; 18, blast pipe; 19, screen pack; 20, air compressor machine; 21, pressure valve; 22, check valve; 23, levels dividing plate; 24, air storage chamber; 25, Pressure gauge; 26, air outlet valve; 27, snorkel; 28, kitchen range; 29, active carbon; 30, filter; 31, active carbon; 32, filter; 33, blow-off pipe; 34, blowoff valve; 35, filter chamber; 36, communicating pipe; 37, blow-off pipe; 38, blowoff valve; 39, sewage groove; 40, active carbon; 41, secondary blast pipe; 42, blower fan; 43, ajutage; 44, mud hole; 45, annular air supply mouth; 46, blast pipe; 50, air inlet; 51,52,53,54,55, the chamber defocuses; 56, division board; 57, division board; 58, division board; 59, inner furnace body; 60, tar drop cut spout; A, body of heater; B, air accumulator; C, secondary filter; D, grade one filter; E, tar dish.
Embodiment: as shown in Figure 1, be its overall structure schematic diagram, it is made up of upper furnace body 5 and lower furnace body 4, and loam cake 10 is equipped with at the top of upper furnace body 5, and matrix tank 9 is arranged around the loam cake 10.Upper of furnace body also is equipped with blast pipe 46, and it is welded on the upper discharge hole 11 of the chamber 52 that defocuses, and air bleeding valve 8 is housed on the blast pipe 46.Inner furnace body 59 is equipped with in the inside of upper furnace body 5, and uniform 5 division boards between upper furnace body 5 and the inner furnace body 59 as Fig. 2, shown in Figure 3, have an air inlet 50 to communicate with vaporizer 7 on the inner furnace body 59 at top between division board 12 and the division board 56.One gap is all arranged at division board 56 and 58 bottom, and the chamber 51 and 52 that defocuses, 53 and 54 is communicated with respectively, and a gap is also all arranged at division board 57 and 6 top, and the chamber 52 and 53 that defocuses, 54 and 55 is communicated with respectively.In the bottom of the chamber 55 that defocuses a gas outlet 13 is arranged, airflow direction is shown in arrow among Fig. 3, and air-flow forms curvilinear motion in the chamber of defocusing.An actor's rendering of an operatic tune in the middle of the inner furnace body 59 is a vaporizer 7, communicates with the combustion chamber 3 of lower furnace body 4, and the bottom of lower furnace body 4 has mud hole 44, and seal cover is housed on the mud hole.Air intake distribution plate 2 is equipped with in the bottom of lower furnace body 4, around the air intake distribution plate is annular air supply mouth 45, ajutage 43 is housed below the air intake distribution plate 2, the other end of ajutage 43 is equipped with blower fan 42, also be connected with secondary blast pipe 41 on the ajutage 43, the other end of secondary blast pipe 41 is contained in the position between blast pipe 18 secondary blast valves 16 and the air bleeding valve 17.Tar dish E is equipped with in the middle part of upper and lower body of heater, and the high outside and low outside one-tenth tilted shape of tar dish E as shown in Figure 4, leaves the gap between tar dish and the inner furnace body 59, and as tar drop cut spout 60, the lower edge of inner furnace body 59 is lower than tar dish E.Gas outlet 13 be externally connected to escape pipe 14, the other end of escape pipe 14 connects grade one filter D, the import that is connected secondary filter C communicating pipe 15 is equipped with in the outlet of grade one filter, vertical screen pack 19 and active carbon 40 are housed in filter, its bottom is sewage groove 39 and blowoff valve 38 is arranged and blow-off pipe 37 communicates with the external world that grade one filter D is identical with the secondary filter C-structure.Blast pipe 18 was housed on communicating pipe 15, secondary blast valve 16 and air bleeding valve 17 are housed on the blast pipe 18, air compressor machine 20 is equipped with in the outlet of secondary filter C, the outlet of air compressor machine 20 be equipped with pressure valve 21 with communicating pipe 36 bottom with air accumulator B link to each other.Air accumulator is divided into top air storage chamber 24 and filter chamber, bottom 35, levels dividing plate 23 is housed between the upper and lower part, check valve 22 is housed on the levels dividing plate 23, upper and lower two- layer filter 30,32 is housed in the filter chamber, bottom 35, be placed with active carbon on the filter, the top of air accumulator is equipped with snorkel 27 and is connected on the kitchen range 28, and air outlet valve 26 controls are arranged.
During use, open loam cake 10 fuel such as stalk are dropped into combustion chamber 3, with pouring water in the tank 9, seal after loam cake 10 is built.Open the seal cover on air bleeding valve 8 and the mud hole 44, the combustibles of lighting are put into mud hole 44, because air bleeding valve 8 is opened, have draft effect, the stalk in the combustion chamber is very fast to be lighted, and mud hole is sealed with seal cover.Open the switch of blower fan 42, it is combustion-supporting that wind around the air intake distribution plate 2 is that annular air supply mouth 45 enters combustion chamber 3, the smog that produces enters vaporizer 7, open air bleeding valve 17 and secondary blast valve 16, close air bleeding valve 8, the smog of vaporizer 7 enters the chamber 51 that defocuses from upper end air inlet 50, then by the gas outlet 13 of 55 bottoms, burnt chamber, the escape pipe 14 that connects enters grade one filter D, is discharged by blast pipe 18 through communicating pipe 15, secondary blast valve 16 and air bleeding valve 17.The very fast generation fuel gas of vaporizer after useless cigarette has been arranged, is closed the switch that air bleeding valve 17 is opened air compressor machine 20 simultaneously under the situation of forced ventilation and anaerobism, and air compressor machine is started working, and fuel gas enters secondary filter C through communicating pipe 15.Fuel gas after the filtration has air compressor machine through communicating pipe 36, is pressed in the filter chamber 35 below the air accumulator B, passes through filter 32,30 active carbon moisture absorptions then, and fuel gas is further purified, and enters in the air storage chamber 24 by check valve 22 at last.Kitchen range 28 igniting backsight flame combustion situations are regulated secondary blast valve 16, make combustion efficiency reach best, pressure valve 21 is closed automatically when reaching certain pressure in the air storage chamber 24, blower fan 42 is out-of-blast, open air bleeding valve 8, air enters the combustion chamber from the gap of fan leaf, is discharged by blast pipe 46, and the fuel in the combustion chamber can keep the long period not extinguish.
Stalk gasifier as renewable sources of energy comprehensive utilization, it is the project that the positive support of country is given special assistance to, not only energy savings is environmental, raw materials used not spending in the rural area can obtain, and use cost is very low, this novel gasification furnace tar emission problem in application that solved, improved combustion gas quality, therefore helping the popularization and the use of stalk gasifier, is a project that wide market prospects are arranged, and will produce certain economic benefits and social benefit to enterprise and society.

Claims (3)

1, the no tar air storing type stalk gasifier of the many air flue circulations of a kind of double-layer furnace body, it is by last, lower furnace body is formed, escape pipe is equipped with in the bottom of upper furnace body, the other end of escape pipe connects grade one filter, the import that is connected secondary filter communicating pipe is equipped with in the outlet of grade one filter, blast pipe was housed on communicating pipe, secondary blast valve and air bleeding valve are housed on the blast pipe, air compressor machine is equipped with in the outlet of secondary filter, the outlet of air compressor machine is equipped with and is linked to each other with the bottom of air accumulator communicating pipe, the top of air accumulator is equipped with snorkel and is connected to kitchen range, the air intake distribution plate is equipped with in the bottom of lower furnace body, ajutage is housed below the air intake distribution plate, and the other end of ajutage is equipped with blower fan, also be connected with the secondary blast pipe on the ajutage, the other end of secondary blast pipe is contained between the secondary blast valve and air bleeding valve of blast pipe; It is characterized in that: inner furnace body is equipped with in the inside of upper furnace body, uniform five division boards between upper furnace body and the inner furnace body, the tar dish is equipped with in the middle part of upper and lower body of heater, the high outside and low outside one-tenth tilted shape of tar dish, leave the gap between tar dish and the inner furnace body, the lower edge of inner furnace body is lower than the tar dish.
2, the no tar air storing type stalk gasifier of the many air flue circulations of double-layer furnace body as claimed in claim 1; It is characterized in that: be serially connected with grade one filter and secondary filter on communicating pipe, two filtration device structures are identical, and the filter internal upper part is equipped with screen pack and active carbon, and the bottom is sewage groove and has blowoff valve to communicate with the external world.
3, the no tar air storing type stalk gasifier of the many air flue circulations of double-layer furnace body as claimed in claim 1 or 2; It is characterized in that: between the air storage chamber on air accumulator top and the filter chamber, bottom the levels dividing plate is housed, on the levels dividing plate check valve is housed, two-layer filter and active carbon up and down are housed in the filter chamber, bottom.
CN 200920089432 2009-04-07 2009-04-07 Circulating tar-free gas storage type straw gasification furnace with double-layered furnace body and multiple air passages Expired - Fee Related CN201396816Y (en)

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CN 200920089432 CN201396816Y (en) 2009-04-07 2009-04-07 Circulating tar-free gas storage type straw gasification furnace with double-layered furnace body and multiple air passages

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104152183A (en) * 2014-08-26 2014-11-19 陆福明 Multipoint-type catalytic biomass gasification machine
CN104449772A (en) * 2014-10-23 2015-03-25 刘长福 High-efficiency production system of wood creosote

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104152183A (en) * 2014-08-26 2014-11-19 陆福明 Multipoint-type catalytic biomass gasification machine
CN104449772A (en) * 2014-10-23 2015-03-25 刘长福 High-efficiency production system of wood creosote

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