CN203807411U - Feeding device for biomass gasifier - Google Patents
Feeding device for biomass gasifier Download PDFInfo
- Publication number
- CN203807411U CN203807411U CN201420113043.6U CN201420113043U CN203807411U CN 203807411 U CN203807411 U CN 203807411U CN 201420113043 U CN201420113043 U CN 201420113043U CN 203807411 U CN203807411 U CN 203807411U
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- CN
- China
- Prior art keywords
- carrier gas
- hot carrier
- mixing section
- biomass
- blast pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/145—Feedstock the feedstock being materials of biological origin
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Abstract
The utility model discloses a feeding device for a biomass gasifier. The feeding device comprises a cylindrical mixing chamber and a cone-shaped hot carrier gas air inlet pipe, wherein the inner diameter of the top end of the hot carrier gas air inlet pipe is smaller than that of the tail end of the hot carrier gas air inlet pipe; a discharge hole of the mixing chamber is connected with a feeding hole of the biomass gasifier; an air inlet of the mixing chamber is connected with a hot carrier gas pipeline through the hot carrier gas air inlet pipe; a catalyst inlet port is formed in the mixing chamber close to the discharge hole of the mixing chamber; a biomass raw material inlet port is formed in the mixing chamber close to the air inlet of the mixing chamber; the top end of the hot carrier gas air inlet pipe stretches into the mixing chamber from the air inlet of the mixing chamber and then extends below the air inlet of the biomass raw material inlet port. The feeding device is simple in structure, biomass raw materials and a catalyst are uniformly mixed and the contact heat exchange is sufficient, the catalytic efficiency of the catalyst is high, and the fuel caloric capacity of combustible gas generated after gasification is relatively high.
Description
Technical field
The utility model relates to biomass gasification equipment technical field, relates in particular to a kind of feeding unit for biomass gasifying furnace.
Background technology
Along with petering out of fossil energy, renewable energy source has obtained global extensive concern, because biomass are a kind of renewable energy sources with recyclability, low pollution and extensive distributivity feature, so the development and utilization of biomass fuel has become one of focus of paying close attention in the whole world.Biomass material is mainly taking agricultural crop straw and forest tree castoff as main.
Number of patent application is to disclose a kind of staged biomass automatic feeder in 201210172196.3 Chinese invention patent document, be provided with funnel-form hopper at the top of biomass gasifying furnace, in biomass gasifying furnace, be provided with the fire grate being connected with the gas blower outside biomass gasifying furnace; When work, gas blower provides catalyzer by fire grate in biomass gasifying furnace, simultaneously biomass material enters in biomass gasifying furnace by funnel-form hopper, in anaerobic in biomass gasifying furnace of biomass material and catalyzer or hypoxic atmosphere, carries out pyrolysis gasification.Number of patent application is that 201220374184.4 Chinese utility model patent discloses the top-suction type biomass gasification furnace that a kind of fuel gases calorific value is high, air feeder and catalyzer with gas preheater are set in biomass gasifying furnace, a side at biomass gasification furnace body is provided with screw feeding device, on screw feeding device, be provided with hopper, biomass material is delivered in biomass gasifying furnace by screw feeding device by hopper, the pyrolysis gasification under the effect of hot gas of biomass material and catalyzer.The feeding unit of above-mentioned two kinds of structures, all that biomass material and catalyzer are delivered in biomass gasifying furnace from the different admission ports of biomass gasifying furnace respectively, so the normal temperature biomass material being delivered in biomass gasifying furnace can not mix and fully contact between the two with high temperature catalyst, thereby cause both heat exchanges insufficient, this can directly have influence on the catalytic efficiency of catalyzer, biomass material is gasified in biomass gasifying furnace insufficient, inevitably can increase the tar content producing after gasifying biomass, greatly reduce the fuel gases calorific value of inflammable gas.
Utility model content
The technical problem of the required solution of the utility model is: provide a kind of simple in structure, can make evenly sufficient heat exchange also of biomass material and catalyst mix, thereby can improve the feeding unit for biomass gasifying furnace of the fuel gases calorific value of inflammable gas.
For addressing the above problem, the technical solution adopted in the utility model is: the described feeding unit for biomass gasifying furnace, comprise: the hot carrier gas blast pipe of the mixing section of circular tube shaped and cone shape, the internal diameter on hot carrier gas blast pipe top is less than the internal diameter of hot carrier gas blast pipe tail end, mixing section discharge port is connected with the opening for feed of biomass gasifying furnace, mixing section inlet mouth is connected with hot gas-carrier pipeline by hot carrier gas blast pipe, on mixing section, be provided with catalyzer admission port near mixing section discharge port place, on mixing section, be provided with biomass material admission port near mixing section inlet mouth place, hot carrier gas blast pipe top extends to the below of biomass material admission port from mixing section inlet mouth stretches in mixing section, when work, high temperature catalyst enters in mixing section by catalyzer admission port, normal temperature biomass material enters in mixing section by biomass material admission port, hot carrier gas simultaneously enters in mixing section by hot carrier gas blast pipe, under the effect of hot carrier gas, catalyzer and biomass material are mixed rapidly and are fully injected into after heat exchange in biomass gasifying furnace, to carry out pyrolysis gasification.
Further, the aforesaid feeding unit for biomass gasifying furnace, wherein, the cone angle of the hot carrier gas blast pipe of cone shape is 15 ± 5 °, hot carrier gas is 15m/s～20m/s by the flow velocity of hot carrier gas blast pipe.
Further, the aforesaid feeding unit for biomass gasifying furnace, wherein, hot carrier gas blast pipe top extends to biomass material admission port below and is positioned at 1/2nd scopes to biomass material admission port bore 2/3rds that are greater than biomass material admission port bore.
Further, the aforesaid feeding unit for biomass gasifying furnace, wherein, hot carrier gas blast pipe is tightly connected by flange and mixing section inlet mouth.
The beneficial effects of the utility model are: this apparatus structure is simple, and working stability is reliable; Hot carrier gas blast pipe is arranged to cone shape and hot carrier gas is exported from hot carrier gas blast pipe top from hot carrier gas blast pipe tail end input again, thereby the hot carrier gas entering in hot carrier gas blast pipe is accelerated; In addition, on mixing section, be disposed with catalyzer admission port and biomass material admission port from mixing section discharge port to mixing section inlet mouth, under the effect of the hot carrier gas of high speed, entering high temperature catalyst in mixing section can mix rapidly and fully contact with normal temperature biomass material and carry out heat exchange, both heat exchanges are evenly abundant, the temperature of biomass material was got a promotion in moment, further improved the catalytic efficiency of catalyzer; The biomass material that makes to spurt in biomass gasifying furnace under the effect of hot carrier gas and catalyzer can carry out rapidly pyrolysis gasification in 3 seconds, and biomass material gasification fully, thereby greatly reduced the tar content in the inflammable gas producing after biomass material gasification, the fuel gases calorific value of the inflammable gas producing after gasification is higher.
Brief description of the drawings
Fig. 1 is the perspective view of the feeding unit for biomass gasifying furnace described in the utility model.
Fig. 2 is the internal structure schematic diagram of the feeding unit for biomass gasifying furnace described in the utility model.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, technical scheme described in the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the feeding unit for biomass gasifying furnace described in the present embodiment, comprising: the hot carrier gas blast pipe 4 of the mixing section 1 of circular tube shaped and cone shape, and the internal diameter on hot carrier gas blast pipe top 41 is less than the internal diameter of hot carrier gas blast pipe tail end 42; In the present embodiment, the cone angle of the hot carrier gas blast pipe 4 of cone shape is 15 ± 5 °, and hot carrier gas is 15m/s～20m/s by the flow velocity of hot carrier gas blast pipe 4.Mixing section discharge port 11 is connected with the opening for feed of biomass gasifying furnace, mixing section inlet mouth is connected with hot gas-carrier pipeline by hot carrier gas blast pipe 4, hot gas-carrier pipeline is connected with the combustible gas outlet of biomass gasifying furnace, and the hot carrier gas entering in hot carrier gas blast pipe 4 is the part high-temperature combustible gas body that in biomass gasifying furnace, gasification produces.In the present embodiment, hot carrier gas blast pipe 4 is tightly connected by flange 5 and mixing section inlet mouth.On mixing section 1, be provided with catalyzer admission port 2 near mixing section discharge port 11 places, on mixing section 1, be provided with biomass material admission port 3 near mixing section inlet mouth place, mixing section 1 is stretched into and extends to interior the below of biomass material admission port 3 from mixing section inlet mouth in hot carrier gas blast pipe top 41, and being positioned at 1/2nd scopes to biomass material admission port bore 2/3rds that are greater than biomass material admission port bore, instant heating carrier gas blast pipe top 41 has extended through 1/2nd places of biomass material admission port bore.In actual fabrication, the length that hot carrier gas blast pipe 4 stretches into mixing section part be about hot carrier gas blast pipe 4 overall length 0.45～0.55.The feeding unit of said structure is made up of high temperature resistant material, and in actual production, this device can select stainless material to make.When work, high temperature catalyst (catalyst temperature is generally 850 DEG C of left and right) enters in mixing section by catalyzer admission port 2, normal temperature biomass material enters in mixing section 1 by biomass material admission port 3, high warm carrier gas simultaneously (hot carrier gas temperature is generally 500～600 DEG C) enters in mixing section 1 by hot carrier gas blast pipe 4 with the flow velocity of 15m/s～20m/s, under the effect of the hot carrier gas of high speed, after catalyzer and biomass material are mixed rapidly, be injected into and in biomass gasifying furnace, carry out pyrolysis gasification, in this process, biomass material and catalyzer can carry out heat exchange fully fast, the temperature of biomass material was got a promotion in moment, be conducive to the abundant gasification of biomass material.
The utility model has the advantages that: this apparatus structure is simple, and working stability is reliable; Hot carrier gas blast pipe 4 is arranged to cone shape and hot carrier gas is exported from hot carrier gas blast pipe top 41 from hot carrier gas blast pipe tail end 42 is inputted again, can make the hot carrier gas entering in hot carrier gas blast pipe 4 be accelerated; In addition, on mixing section 1, be disposed with catalyzer admission port 2 and biomass material admission port 3 from mixing section discharge port 11 to mixing section inlet mouth, under the effect of the hot carrier gas of high speed, entering high temperature catalyst in mixing section 1 can mix rapidly and fully contact with normal temperature biomass material and carry out heat exchange, both heat exchanges are evenly abundant, the temperature of biomass material was got a promotion in moment, further improved the catalytic efficiency of catalyzer; The biomass material that makes to spurt in biomass gasifying furnace under the effect of hot carrier gas and catalyzer can carry out rapidly pyrolysis gasification in 3 seconds, and biomass material gasification fully, thereby greatly reduce the tar content in the inflammable gas producing after biomass material gasification, the fuel gases calorific value of the inflammable gas producing after gasification is higher.
Claims (4)
1. for the feeding unit of biomass gasifying furnace, it is characterized in that: comprising: the hot carrier gas blast pipe of the mixing section of circular tube shaped and cone shape, the internal diameter on hot carrier gas blast pipe top is less than the internal diameter of hot carrier gas blast pipe tail end, mixing section discharge port is connected with the opening for feed of biomass gasifying furnace, mixing section inlet mouth is connected with hot gas-carrier pipeline by hot carrier gas blast pipe, on mixing section, be provided with catalyzer admission port near mixing section discharge port place, on mixing section, be provided with biomass material admission port near mixing section inlet mouth place, hot carrier gas blast pipe top extends to the below of biomass material admission port from mixing section inlet mouth stretches in mixing section, when work, high temperature catalyst enters in mixing section by catalyzer admission port, normal temperature biomass material enters in mixing section by biomass material admission port, hot carrier gas simultaneously enters in mixing section by hot carrier gas blast pipe, under the effect of hot carrier gas, catalyzer and biomass material are mixed rapidly and are fully injected into after heat exchange in biomass gasifying furnace, to carry out pyrolysis gasification.
2. according to the feeding unit for biomass gasifying furnace claimed in claim 1, it is characterized in that: the cone angle of the hot carrier gas blast pipe of cone shape is 15 ± 5 °, hot carrier gas is 15m/s～20m/s by the flow velocity of hot carrier gas blast pipe.
3. according to the feeding unit for biomass gasifying furnace claimed in claim 1, it is characterized in that: hot carrier gas blast pipe top extends to biomass material admission port below and is positioned at 1/2nd scopes to biomass material admission port bore 2/3rds that are greater than biomass material admission port bore.
4. according to the feeding unit for biomass gasifying furnace described in claim 1,2 or 3, it is characterized in that: hot carrier gas blast pipe is tightly connected by flange and mixing section inlet mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420113043.6U CN203807411U (en) | 2014-03-13 | 2014-03-13 | Feeding device for biomass gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420113043.6U CN203807411U (en) | 2014-03-13 | 2014-03-13 | Feeding device for biomass gasifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203807411U true CN203807411U (en) | 2014-09-03 |
Family
ID=51446195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420113043.6U Withdrawn - After Issue CN203807411U (en) | 2014-03-13 | 2014-03-13 | Feeding device for biomass gasifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203807411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103897742A (en) * | 2014-03-13 | 2014-07-02 | 张家港市天源机械制造有限公司 | Feeding device for biomass gasifier |
-
2014
- 2014-03-13 CN CN201420113043.6U patent/CN203807411U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103897742A (en) * | 2014-03-13 | 2014-07-02 | 张家港市天源机械制造有限公司 | Feeding device for biomass gasifier |
| CN103897742B (en) * | 2014-03-13 | 2015-07-29 | 张家港市天源机械制造有限公司 | For the feeding unit of biomass gasifying furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140903 Effective date of abandoning: 20150729 |
|
| RGAV | Abandon patent right to avoid regrant |