CN103897742B - For the feeding unit of biomass gasifying furnace - Google Patents
For the feeding unit of biomass gasifying furnace Download PDFInfo
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- CN103897742B CN103897742B CN201410091628.7A CN201410091628A CN103897742B CN 103897742 B CN103897742 B CN 103897742B CN 201410091628 A CN201410091628 A CN 201410091628A CN 103897742 B CN103897742 B CN 103897742B
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- mixing section
- carrier gas
- hot carrier
- blast pipe
- biomass
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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
- Y02P20/10—Process efficiency
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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 invention discloses a kind of feeding unit for biomass gasifying furnace, comprise: the mixing section of circular tube shaped and the hot carrier gas blast pipe of 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, mixing section is provided with catalyzer admission port near mixing section discharge outlet, mixing section is provided with biomass material admission port near mixing section inlet mouth place, the below extending to biomass material admission port after in mixing section is stretched on hot carrier gas blast pipe top from mixing section inlet mouth, structure of the present invention is simple, and evenly and contact heat-exchanging is abundant, the catalytic efficiency of catalyzer is high, and the fuel gases calorific value of the inflammable gas produced after gasification is higher for biomass material and catalyst mix.
Description
Technical field
The present invention relates to biomass gasification equipment technical field, particularly relate to a kind of for the feeding unit in biomass gasifying furnace.
Background technology
Along with petering out of fossil energy, renewable energy source has obtained the extensive concern in the whole world, because biomass are a kind of renewable energy sources with recyclability, low stain and extensive distributivity feature, so the development and utilization of biomass fuel has become one of focus paid close attention in the whole world.Biomass material is mainly based on agricultural crop straw and forest tree castoff.
Number of patent application is disclose a kind of staged biomass automatic feeder in the Chinese invention patent document of 201210172196.3, the top of biomass gasifying furnace is provided with funnel-form hopper, in biomass gasifying furnace, is provided with the fire grate be connected with the gas blower outside biomass gasifying furnace; During work, gas blower provides catalyzer by fire grate in biomass gasifying furnace, simultaneously biomass material enters in biomass gasifying furnace by funnel-form hopper, carries out pyrolysis gasification in anaerobic in biomass gasifying furnace of biomass material and catalyzer or hypoxic atmosphere.Number of patent application be 201220374184.4 Chinese invention patent disclose the high top-suction type biomass gasification furnace of a kind of fuel gases calorific value, air feeder and the catalyzer of band gas preheater are set in biomass gasifying furnace, the side of biomass gasification furnace body is provided with screw feeding device, screw feeding device is provided with hopper, biomass material is delivered in biomass gasifying furnace by hopper by screw feeding device, biomass material and catalyzer pyrolysis gasification under the effect of hot gas.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 be delivered in biomass gasifying furnace can not mix between the two with high temperature catalyst and fully contact, thus cause both heat exchanges insufficient, this directly can have influence on the catalytic efficiency of catalyzer, biomass material is gasified in biomass gasifying furnace insufficient, the tar content produced after inevitably increasing gasifying biomass, greatly reduce the fuel gases calorific value of inflammable gas.
Summary of the invention
The technical problem of solution required for the present invention is: provide a kind of structure simple, biomass material and catalyst mix evenly also sufficient heat exchange can be made, thus the feeding unit for biomass gasifying furnace of the fuel gases calorific value of inflammable gas can be improved.
For solving the problem, the technical solution used in the present invention is: the described feeding unit for biomass gasifying furnace, comprise: the mixing section of circular tube shaped and the hot carrier gas blast pipe of 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, mixing section is provided with catalyzer admission port near mixing section discharge outlet, mixing section is provided with biomass material admission port near mixing section inlet mouth place, the below extending to biomass material admission port after in mixing section is stretched on hot carrier gas blast pipe top from mixing section inlet mouth, during 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 injected in biomass gasifying furnace after abundant heat exchange 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 °, and 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 to extend to below biomass material admission port and is positioned at the scope of two/mono-to the biomass material admission port bore 2/3rds being 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 invention has the beneficial effects as follows: 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 after hot carrier gas blast pipe tail end input again, thus the hot carrier gas entered in hot carrier gas blast pipe is accelerated; In addition, mixing section is 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, the high temperature catalyst entered in mixing section can mix rapidly with normal temperature biomass material and fully contact and carry out heat exchange, both heat exchanges are evenly abundant, the temperature of biomass material is being got a promotion instantaneously, further increases the catalytic efficiency of catalyzer; Under the effect of hot carrier gas and catalyzer, make the biomass material spurted in biomass gasifying furnace can carry out pyrolysis gasification rapidly in 3 seconds, and biomass material gasification fully, thus the tar content in the inflammable gas produced after greatly reducing biomass material gasification, the fuel gases calorific value of the inflammable gas produced after gasification is higher.
Accompanying drawing explanation
Fig. 1 is the perspective view of the feeding unit for biomass gasifying furnace of the present invention.
Fig. 2 is the internal structure schematic diagram of the feeding unit for biomass gasifying furnace of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, technical solutions according to the invention are 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 mixing section 1 of circular tube shaped and the hot carrier gas blast pipe 4 of 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 exports with the combustible gas of biomass gasifying furnace and is connected, and the hot carrier gas entered in hot carrier gas blast pipe 4 is the part high-temperature combustible gas body produced that gasifies in biomass gasifying furnace.In the present embodiment, hot carrier gas blast pipe 4 is tightly connected by flange 5 and mixing section inlet mouth.Mixing section 1 is provided with catalyzer admission port 2 near mixing section discharge port 11 place, mixing section 1 is provided with biomass material admission port 3 near mixing section inlet mouth place, the below extending to biomass material admission port 3 after in mixing section 1 is stretched on hot carrier gas blast pipe top 41 from mixing section inlet mouth, and being positioned at the scope of two/mono-to the biomass material admission port bore 2/3rds being 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 is about 0.45 ~ 0.55 of the overall length of hot carrier gas blast pipe 4.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.During work, high temperature catalyst (catalyst temperature is generally at about 850 DEG C) 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-temperature hot carrier gas (hot carrier gas temperature is generally 500 ~ 600 DEG C) enters in mixing section 1 with the flow velocity of 15m/s ~ 20m/s by hot carrier gas blast pipe 4 simultaneously, under the effect of the hot carrier gas of high speed, be injected in biomass gasifying furnace after catalyzer and biomass material are mixed rapidly and carry out pyrolysis gasification, in the process, biomass material and catalyzer can carry out heat exchange fully fast, the temperature of biomass material is being got a promotion instantaneously, be conducive to the abundant gasification of biomass material.
Advantage of the present invention is: 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 after hot carrier gas blast pipe tail end 42 inputs again, the hot carrier gas entered in hot carrier gas blast pipe 4 can be made to be accelerated; In addition, mixing section 1 is 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, the high temperature catalyst entered in mixing section 1 can mix rapidly with normal temperature biomass material and fully contact and carry out heat exchange, both heat exchanges are evenly abundant, the temperature of biomass material is being got a promotion instantaneously, further increases the catalytic efficiency of catalyzer; Under the effect of hot carrier gas and catalyzer, make the biomass material spurted in biomass gasifying furnace can carry out pyrolysis gasification rapidly in 3 seconds, and biomass material gasification fully, thus the tar content in the inflammable gas produced after greatly reducing biomass material gasification, the fuel gases calorific value of the inflammable gas produced after gasification is higher.
Claims (4)
1. for the feeding unit of biomass gasifying furnace, it is characterized in that: comprising: the mixing section of circular tube shaped and the hot carrier gas blast pipe of 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, mixing section is provided with catalyzer admission port near mixing section discharge outlet, mixing section is provided with biomass material admission port near mixing section inlet mouth place, the below extending to biomass material admission port after in mixing section is stretched on hot carrier gas blast pipe top from mixing section inlet mouth, during 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 injected in biomass gasifying furnace after abundant heat exchange to carry out pyrolysis gasification.
2. according to the feeding unit for biomass gasifying furnace according to claim 1, it is characterized in that: the cone angle of the hot carrier gas blast pipe 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.
3. according to the feeding unit for biomass gasifying furnace according to claim 1, it is characterized in that: hot carrier gas blast pipe top to extend to below biomass material admission port and is positioned at the scope of two/mono-to the biomass material admission port bore 2/3rds being 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 |
|---|---|---|---|
| CN201410091628.7A CN103897742B (en) | 2014-03-13 | 2014-03-13 | For the feeding unit of biomass gasifying furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410091628.7A CN103897742B (en) | 2014-03-13 | 2014-03-13 | For the feeding unit of biomass gasifying furnace |
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| CN103897742A CN103897742A (en) | 2014-07-02 |
| CN103897742B true CN103897742B (en) | 2015-07-29 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1549742A (en) * | 2001-04-19 | 2004-11-24 | ����ɭ�о����̹�˾ | Apparatus and process for enhanced feed atomization |
| CN202169145U (en) * | 2011-07-28 | 2012-03-21 | 武汉九楚亘泰萃取技术有限公司 | Screw conveyor used for gas-solid mixing process |
| CN203807411U (en) * | 2014-03-13 | 2014-09-03 | 张家港市天源机械制造有限公司 | Feeding device for biomass gasifier |
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2014
- 2014-03-13 CN CN201410091628.7A patent/CN103897742B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1549742A (en) * | 2001-04-19 | 2004-11-24 | ����ɭ�о����̹�˾ | Apparatus and process for enhanced feed atomization |
| CN202169145U (en) * | 2011-07-28 | 2012-03-21 | 武汉九楚亘泰萃取技术有限公司 | Screw conveyor used for gas-solid mixing process |
| CN203807411U (en) * | 2014-03-13 | 2014-09-03 | 张家港市天源机械制造有限公司 | Feeding device for biomass gasifier |
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| CN103897742A (en) | 2014-07-02 |
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