CN202297482U - Tapered fixed bed continuous biomass pyrolysis device - Google Patents
Tapered fixed bed continuous biomass pyrolysis device Download PDFInfo
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- CN202297482U CN202297482U CN2011204485747U CN201120448574U CN202297482U CN 202297482 U CN202297482 U CN 202297482U CN 2011204485747 U CN2011204485747 U CN 2011204485747U CN 201120448574 U CN201120448574 U CN 201120448574U CN 202297482 U CN202297482 U CN 202297482U
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- pyrolysis
- biomass
- shaped heat
- pyrolysis installation
- heat transfer
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Abstract
The utility model relates to a tapered fixed bed continuous biomass pyrolysis device, belonging to the technical field of energy source processing and conversion. According to the utility model, a combustion chamber (1) is arranged at the lower part in a pyrolysis device shell, a gas collection box (10) is arranged outside the pyrolysis device shell, a biomass storage bin is arranged at the upper part of the pyrolysis device shell, a tapered bed pipe plate (3) is arranged at the top of the combustion chamber, one ends of a plurality of L-shaped heat exchange pipes (4) are connected with the tapered bed pipe plate, the other ends of the L-shaped heat exchange pipes (4) pass through the pyrolysis device shell and are communicated with the gas collecting box, and the biomass storage bin (7) are connected into the pyrolysis device shell through a material falling pipe. According to the utility model, the tapered bed pipe plate and the L-shaped heat exchange pipes are combined and installed vertically, high-temperature flue gas flows in the heat exchange pipes from bottom to top, biomass materials move from top to bottom outside the heat exchange pipes under the action of gravity, the speed of temperature rise is even, heat utilization effect and pyrolysis effect are high, the structure is simple and reliable, the service life is long, and therefore the tapered fixed bed continuous biomass pyrolysis device is suitable to made into a large one.
Description
Technical field
The utility model relates to a kind of taper fixed bed biomass continuous pyrolysis device; Particularly biomass are obtained the raw material of Chemicals and Chemicals or the biomass pyrolytic equipment of clean energy more through the pyrolytic method, belong to energy processing switch technology field.
Background technology
Biomass belong to the renewable energy resources, and reserves are big, it is wide to distribute, and reserves are only second to coal, oil, Sweet natural gas, and biomass pyrolytic is that Biomass Energy Utilization comparatively cleans, one of mode efficiently.At present, background technology does not also have very sophisticated fixed bed macro-organism matter continuous pyrolysis device, and major part is small-sized or testing apparatus, and for example Chinese patent 201010212171.2, and said is the small-sized pyrolysis installation in laboratory; Chinese patent 200620135283.1, said is horizontal type fixed bed structure, leans on a plurality of augers to transmit biomass material, complex structure is applicable to small-sized or intermittently pyrolysis; Chinese patent 200610128431.1; Be through the auger convey materials, adverse current more also flows in biomass material and high-temperature flue gas heat exchange mode elder generation, after the biomass material temperature raising, the temperature raising again of lowering the temperature again; Cause the significant wastage of the energy, do not utilize the steady running of biomass pyrolytic; Chinese patent 01263947.8, there is following problem in said pyrolysis installation: the one, biomass material proportion is less, directly falls into bed from feeding mouth, and the biomass material that pyrolysis coal gas is taken away is more, and the postorder intractability is big; The 2nd, high-temperature flue gas mobile easy bias current between pipe influences heat transfer efficiency, and the heat transfer tube of straight tube structure can't be eliminated thermal stresses simultaneously, is easy to occur the phenomenon of weld bond drawing crack, can't guarantee work-ing life, threatens safety in production; The 3rd, the charcoal after a plurality of mouth of pipe extraction pyrolysis influences the stability of bed, very easily causes the inhomogeneous decline of bed, reduces pyrolysis efficient.
The utility model content
The utility model purpose provides a kind of taper fixed bed biomass continuous pyrolysis device; Simple in structure, operation facility, the biomass material temperature rise rate is even, and HU and pyrolysis efficient are high; Long service life; Safe and reliable, realize the maximization of continuous biomass pyrolysis device, solve the problems referred to above that exist in the background technology.
The technical scheme of the utility model is: a kind of taper fixed bed biomass continuous pyrolysis device; Comprise combustion chamber, pyrolysis installation housing, L shaped heat transfer tube, conical bed tube sheet, biomass storage bin, plenum chamber and fall the material pipe; The combustion chamber is arranged on the intravital bottom of pyrolysis installation shell, and plenum chamber is arranged on the pyrolysis installation hull outside, and the biomass storage bin is arranged on the top of pyrolysis installation housing; The top of combustion chamber is the conical bed tube sheet; One end of many L shaped heat transfer tubes is connected with the conical bed tube sheet, and the L shaped heat transfer tube the other end passes the pyrolysis installation housing and is communicated with plenum chamber, and the biomass storage bin is through falling the material pipe coupling in the pyrolysis installation housing.
On the pyrolysis installation housing, also be provided with controlling level and detect mouth, low-temperature flue gas outlet, pyrolysis gas exit, fuel gas inlet, air, pyrolysis charcoal discharge gate, pyrolysis charcoal discharge gate is provided with one, is arranged on the conical bed tube sheet bottom.
The biomass storage bin connects to fall through the biomass feed auger expects pipe, falls and expects that pipe passes the pyrolysis installation top board and gets in the pyrolysis installation housing; L shaped heat transfer tube is crooked to housing direction in the pyrolysis installation housing, angle of bend >=90 degree, and L shaped heat transfer tube is provided with a plurality of, and the top of L shaped heat transfer tube is connected with pyrolysis installation housing hoop, and housing is provided with plenum chamber outward, and the flue gas behind the L shaped heat exchange intraductal heat exchange is drawn; The bottom of L shaped heat transfer tube is connected with the conical bed tube sheet, and the cone angle of conical bed tube sheet is less than or equal to 60 degree, and the bottom of conical bed tube sheet is the combustion chamber.
The pyrolysis installation housing is interior, the top board bottom, and the space that falls between the material pipe outside and the housing is a pyrolysis gas overflow space, and the height of pyrolysis gas overflow space is more than or equal to 50% of pyrolysis installation diameter of the housing.
600-900 ℃ of combustion chamber high temperature flue-gas temperature, 150-300 ℃ of pyrolysis gas outlet temperature.
The utility model top is provided with and falls the material pipe; Biomass material directly gets into the bed on pyrolysis installation conical bed tube sheet top through falling material pipe, and bed top is provided with the space that the pyrolysis gas of certain altitude overflows, and the flow velocity that pyrolysis coal gas overflows bed is low; There is not biomass material to fall in the pyrolysis space; The pyrolysis coal gas carry-over of pyrolysis gas exit is few, and biomass bed and high-temperature flue gas countercurrent flow, biomass material lean on gravity evenly to move down between heat transfer tube; Charcoal after the pyrolysis gets into the pyrolysis charcoal discharge gate of foot along the bottom of conical bed, pyrolysis charcoal discharge gate is arranged on the lowermost end of conical bed.
The utility model positively effect is: conical bed tube sheet and L shaped heat transfer tube is grouped together, and vertical installation, high-temperature flue gas flows in heat transfer tube from bottom to top; Biomass material leans on gravity to move and the high-temperature flue gas countercurrent flow outside heat transfer tube from top to bottom, and temperature rise rate is even, and efficiency of utilization and pyrolysis efficient are high; Simple and reliable for structure; L shaped heat transfer tube thermal stresses is eliminated thoroughly, long service life, the maximization of suitable device.
Description of drawings
Accompanying drawing 1 is the utility model synoptic diagram;
Accompanying drawing 2 is the utility model A-A cross-sectional schematic;
Among the figure: combustion chamber 1, pyrolysis installation housing 2, conical bed tube sheet 3, L shaped heat pipe 4, pyrolysis installation top board 5, controlling level detect mouth 6, biomass silo 7, biomass feed auger 8, fall and expect pipe 9, plenum chamber 10, low-temperature flue gas outlet 11, pyrolysis gas exit 12, fuel gas inlet 13, air 14, pyrolysis charcoal discharge gate 15, housing thermal insulation layer 16, combustion chamber refractory insulating layer 17.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further through embodiment.
A kind of taper fixed bed biomass continuous pyrolysis device; Comprise combustion chamber 1, pyrolysis installation housing 2, L shaped heat transfer tube 4, conical bed tube sheet 3, biomass storage bin 7, plenum chamber 10 and fall material pipe 9; The combustion chamber is arranged on the intravital bottom of pyrolysis installation shell, and plenum chamber is arranged on the pyrolysis installation hull outside, and the biomass storage bin is arranged on the top of pyrolysis installation housing; The top of combustion chamber is the conical bed tube sheet; One end of many L shaped heat transfer tubes is connected with the conical bed tube sheet, and the L shaped heat transfer tube the other end passes the pyrolysis installation housing and is communicated with plenum chamber, and the biomass storage bin is through falling the material pipe coupling in the pyrolysis installation housing.
On the pyrolysis installation housing, also be provided with controlling level and detect mouth 6, low-temperature flue gas outlet 11, pyrolysis gas exit 12, fuel gas inlet 13, air 14, pyrolysis charcoal discharge gate 15; Pyrolysis charcoal discharge gate is provided with one, is arranged on the conical bed tube sheet bottom.
Space in the pyrolysis installation housing, above the conical bed tube sheet is a pyrolysis gas overflow space, and the height of pyrolysis gas overflow space is greater than 50% of pyrolysis installation diameter of the housing.600-900 ℃ of combustion chamber high temperature flue-gas temperature, 150-300 ℃ of pyrolysis gas outlet temperature.
The principle of work of the utility model is: inflammable gas forms 600-900 ℃ of high-temperature flue gas in combustion chamber 1 internal combustion and gets in the L shaped heat transfer tube 4 that connects on the conical bed tube sheet 3; Flow from bottom to top; With the outer biomass bed of material that moves from top to bottom of heat transferred heat transfer tube; The bed biomass material district nearer apart from the conical bed tube sheet is the high-temperature zone; The biomass heating temperature raises and under oxygen free condition, carries out pyrolysis; Pyrolytic 400-600 ℃ coal gas of high temperature passes the biomass bed from bottom to top and overflows from top in the high-temperature zone, has heated the lower biomass bed of material of upper temp simultaneously, after the pyrolysis gas temperature drops to 150-300 ℃ from top gas exit 12 discharge and get into the postorder treatment process; Flue gas after temperature descends is discharged from the low-temperature flue gas outlet 11 on the plenum chamber 10 of pyrolysis installation shell side top setting.Regulate the rotating speed of feed auger 8, continuously feeding; The aperture of the pyrolysis charcoal discharge gate 15 that is provided with according to bed height, pyrolysis gas temperature adjustment conical bed tube sheet 3 bottoms, successive is discharged the pyrolysis charcoal, realizes the continuous pyrolysis of biomass.
The characteristics of the utility model: the one, conical bed tube sheet and L shaped heat transfer tube are grouped together, heat transfer tube and housing and conical bed tube sheet connection portion thermal stresses are eliminated thoroughly, long service life; The 2nd, adopt the conical bed tube plate structure, biomass material is realized evenly descending, and excessive pyrolysis can not occur, no dead angle; The 3rd, the top is provided with and falls material pipe and pyrolysis gas overflow space, and pyrolysis coal gas carry-over is few; Simple in structure, operation facility, the biomass material temperature rise rate is even, and HU and pyrolysis efficient are high, the device long service life, the continuous pyrolysis of safe and reliable realization biomass can be realized the maximization of continuous biomass pyrolysis device simultaneously.
Claims (5)
1. taper fixed bed biomass continuous pyrolysis device; It is characterized in that comprising combustion chamber (1), pyrolysis installation housing (2), L shaped heat transfer tube (4), conical bed tube sheet (3), biomass storage bin (7), plenum chamber (10) and fall material pipe (9); The combustion chamber is arranged on the intravital bottom of pyrolysis installation shell; Plenum chamber is arranged on the pyrolysis installation hull outside; The biomass storage bin is arranged on the top of pyrolysis installation housing, and the top of combustion chamber is the conical bed tube sheet, and an end of many L shaped heat transfer tubes is connected with the conical bed tube sheet; The L shaped heat transfer tube the other end passes the pyrolysis installation housing and is communicated with plenum chamber, and the biomass storage bin is through falling the material pipe coupling in the pyrolysis installation housing.
2. a kind of taper fixed bed biomass continuous pyrolysis device according to claim 1; It is characterized in that on the pyrolysis installation housing, also being provided with controlling level and detect mouthful (6), low-temperature flue gas outlet (11), pyrolysis gas exit (12), fuel gas inlet (13), air (14), pyrolysis charcoal discharge gate (15); Pyrolysis charcoal discharge gate is provided with one, is arranged on the conical bed tube sheet bottom.
3. according to claim 1 or 2 said a kind of taper fixed bed biomass continuous pyrolysis devices; It is characterized in that biomass storage bin (7) falls material pipe (9) through biomass feed auger (8) connection, fall the material pipe and pass in pyrolysis installation top board (5) the entering pyrolysis installation housing.
4. according to claim 1 or 2 said a kind of taper fixed bed biomass continuous pyrolysis devices, it is a plurality of to it is characterized in that L shaped heat transfer tube is provided with, and the top of L shaped heat transfer tube is connected with pyrolysis installation housing hoop; The bottom of L shaped heat transfer tube is connected with the conical bed tube sheet, and the cone angle of conical bed tube sheet is less than or equal to 60 degree, and the bottom of conical bed tube sheet is the combustion chamber.
5. according to claim 1 or 2 said a kind of taper fixed bed biomass continuous pyrolysis devices; It is characterized in that being provided with in the pyrolysis installation housing pyrolysis gas overflow space; The pyrolysis installation housing is interior, the top board bottom; The space that falls between the material pipe outside and the housing is a pyrolysis gas overflow space, and the height of pyrolysis gas overflow space is more than or equal to 50% of pyrolysis installation diameter of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204485747U CN202297482U (en) | 2011-11-14 | 2011-11-14 | Tapered fixed bed continuous biomass pyrolysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204485747U CN202297482U (en) | 2011-11-14 | 2011-11-14 | Tapered fixed bed continuous biomass pyrolysis device |
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| CN202297482U true CN202297482U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204485747U Expired - Fee Related CN202297482U (en) | 2011-11-14 | 2011-11-14 | Tapered fixed bed continuous biomass pyrolysis device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911677A (en) * | 2012-10-26 | 2013-02-06 | 太原理工大学 | Coal thermolysis device for heat-carrying gas |
| CN104774628A (en) * | 2015-03-31 | 2015-07-15 | 长安大学 | Vertical type pulverized coal pyrolyzing furnace |
| CN105295967A (en) * | 2015-11-12 | 2016-02-03 | 盐城工学院 | Outer heating pyrolysis reactor for high-moisture carbon-based raw material |
| CN105462599A (en) * | 2015-11-18 | 2016-04-06 | 江苏工博环保能源研究院有限公司 | Decoupling pyrolysis method and device of granulated biomass |
| CN111303919A (en) * | 2020-03-10 | 2020-06-19 | 梅丽中 | A apparatus for producing for improving straw biomass active carbon of soil |
| CN111534313A (en) * | 2020-05-11 | 2020-08-14 | 栗兰苔 | Horizontal converter and process system for single-cylinder internal heat supply continuous pyrolysis of biomass |
-
2011
- 2011-11-14 CN CN2011204485747U patent/CN202297482U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911677A (en) * | 2012-10-26 | 2013-02-06 | 太原理工大学 | Coal thermolysis device for heat-carrying gas |
| CN104774628A (en) * | 2015-03-31 | 2015-07-15 | 长安大学 | Vertical type pulverized coal pyrolyzing furnace |
| CN104774628B (en) * | 2015-03-31 | 2017-06-13 | 长安大学 | A kind of vertical pulverized coal pyrolysis stove |
| CN105295967A (en) * | 2015-11-12 | 2016-02-03 | 盐城工学院 | Outer heating pyrolysis reactor for high-moisture carbon-based raw material |
| CN105295967B (en) * | 2015-11-12 | 2017-12-26 | 盐城工学院 | A kind of carbon-based raw material external-heat pyrolysis reactor of high humidity |
| CN105462599A (en) * | 2015-11-18 | 2016-04-06 | 江苏工博环保能源研究院有限公司 | Decoupling pyrolysis method and device of granulated biomass |
| CN105462599B (en) * | 2015-11-18 | 2017-11-21 | 江苏工博环保能源研究院有限公司 | It is granulated biomass decoupling method for pyrolysis and device |
| CN111303919A (en) * | 2020-03-10 | 2020-06-19 | 梅丽中 | A apparatus for producing for improving straw biomass active carbon of soil |
| CN111534313A (en) * | 2020-05-11 | 2020-08-14 | 栗兰苔 | Horizontal converter and process system for single-cylinder internal heat supply continuous pyrolysis of biomass |
| CN111534313B (en) * | 2020-05-11 | 2021-04-13 | 栗兰苔 | Horizontal converter and process system for single-cylinder internal heat supply continuous pyrolysis of biomass |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20171114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |