CN116731748B - A downdraft biomass gasifier - Google Patents
A downdraft biomass gasifierInfo
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- CN116731748B CN116731748B CN202310557948.6A CN202310557948A CN116731748B CN 116731748 B CN116731748 B CN 116731748B CN 202310557948 A CN202310557948 A CN 202310557948A CN 116731748 B CN116731748 B CN 116731748B
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Abstract
The application relates to the technical field of biomass gasifiers, and discloses a downdraft biomass gasifiers, which mainly comprises a furnace body, a fire grate and an ash receiving hopper, wherein an inner cylinder is arranged in the furnace body, an annular space is formed between the inner cylinder and the furnace body, a spiral baffle plate is arranged on the side wall of the annular space, an air distributor is arranged on an oxidation layer of the inner cylinder and used for guiding and distributing air, a flow distributor is arranged on the outer wall of the furnace body and communicated with the air distributor, an annular closed groove is formed between an annular pipeline of the air distributor and the closed cylinder, a square closed groove is formed between a straight pipe and the closed plate, a slip ring and a sliding plate are slidably arranged in the closed groove, and a plurality of stirring rods are arranged between the adjacent sliding plates. The application can uniformly distribute air, prevent the oxide layer from being burnt through locally, reduce the dust content in the produced biomass gas, stir the biomass fuel of the oxide layer and prevent the oxide layer from being bridged to cause empty burning.
Description
Technical Field
The application relates to the technical field related to biomass gasifiers, in particular to a downdraft biomass gasifier.
Background
Biomass gasification technology is a technology of biomass thermochemical conversion, namely biomass fuel is cracked into combustible gases such as CO, H 2、CH4 and the like with lower molecular weight under the condition of incomplete combustion, wherein organic hydrocarbon chains with higher molecular weight are cracked. In biomass gasification, a biomass gasifier is widely used, and the biomass gasifier can be divided into an updraft biomass gasifier and a downdraft biomass gasifier according to different air outlet directions.
The raw materials and air enter the downdraft biomass gasifier from the upper end of the gasifier body, the raw materials sequentially pass through a drying layer, a pyrolysis layer, an oxidation layer and a reduction layer in the gasifier body, however, the air enters from the upper end of the gasifier body, firstly contacts with biomass fuel at the upper end, the position where the biomass fuel burns is close to the upper end of the gasifier body, oxidation-reduction is insufficient, the reduction layer is thickened, air flow resistance is increased and the like easily occurs, an air outlet and an ash hole of the downdraft biomass gasifier are arranged at the lower end of the gasifier body, biomass gas is discharged from ash slag, more dust is inevitably contained in the biomass gas, the pyrolysis layer and the drying layer are arranged at the upper side of the oxidation layer, and after the biomass of the oxidation layer burns, the biomass is difficult to descend to the oxidation layer due to accumulation and 'bridging' phenomena of the biomass, a large gap exists between the biomass of the oxidation layer, so that the biomass of the oxidation layer is empty to burn, and the biomass gas productivity is low.
Disclosure of Invention
The application provides a downdraft biomass gasifier which has the advantages of preventing an oxidation layer from moving upwards, reducing dust content in biomass gas and preventing biomass of the oxidation layer from bridging, and is used for solving the problems of high dust content in the oxidation layer and low biomass gas yield caused by bridging of biomass of the oxidation layer.
The downdraft biomass gasification furnace comprises a furnace body, a fire grate and an ash receiving hopper, wherein the fire grate and the ash receiving hopper are fixedly arranged at the lower position of the inner wall of the furnace body, the ash receiving hopper is positioned below the fire grate, an inner cylinder is fixedly arranged at the upper end of the fire grate, an annular space is formed between the inner cylinder and the furnace body, spiral baffle plates are fixedly arranged on the side walls of two sides of the annular space, the inner cylinder is internally divided into a drying layer, a pyrolysis layer, an oxidation layer and a reduction layer from top to bottom, two air distributors are fixedly arranged on the inner wall of the inner cylinder corresponding to the oxidation layer and used for guiding and distributing air, a flow distributor is fixedly arranged on the outer wall of the furnace body, and two air outlets of the flow distributor are respectively communicated with air inlets of the two air distributors.
Further, air distributor includes annular duct, straight tube and air vent, air distributor's annular duct fixed mounting is on the inner wall of inner tube, annular array has seted up a plurality of air vents on annular duct's the inner circle, annular array is equipped with a plurality of straight tubes on annular duct's the inner circle, straight tube and annular duct intercommunication, the upside the air vent has been seted up to straight tube lower extreme equidistance, and a plurality of air vents have been seted up to straight tube upper end.
Further, the included angle formed by the spiral baffle plate and the axis of the furnace body is smaller than 45 degrees.
Further, air distributor includes annular duct, straight tube, seal a section of thick bamboo and closure plate, air distributor's annular duct fixed mounting is on the inner wall of inner tube, two the outside and inboard fixed cover of annular duct are equipped with the seal a section of thick bamboo respectively, two form the annular seal between seal a section of thick bamboo and the annular duct, set up the air vent that communicates the annular seal on the annular duct, slidable mounting has the sliding ring in the annular seal, annular array is equipped with a plurality of straight tubes on the inner circle of annular duct, straight tube and annular duct intercommunication, the lateral wall fixed mounting of straight tube has the closure plate, form square seal between closure plate and the straight tube and put up the air vent that communicates square seal on the straight tube, square seal and annular seal put the intercommunication, sliding plate is put to sliding mounting in the inner wall of sliding ring in square seal put up, set up the spread groove on the closure plate of straight tube both sides, vent has been seted up respectively to the spread in annular seal in groove top and the below, set up on the seal a section of thick bamboo two rows of straight tube, two adjacent side of straight tube and two adjacent side of sealing are equipped with the stirring rod between the two adjacent side of sealing bars through the two vent holes.
Further, a hot smoke distributor is fixedly arranged on the inner wall of the inner cylinder and is positioned on the pyrolysis layer in the inner cylinder.
Further, a screen is fixedly arranged in the exhaust hole.
Further, the top and the bottom of the inner wall of the square closed groove are respectively fixedly provided with a limit strip.
Further, when not in operation, the sliding plate is erected on the limit bar at the lower end, the sliding plate blocks the exhaust hole at the lower side of the sealing plate, and when the sliding plate slides to the limit bar at the upper end, the sliding plate blocks the exhaust hole at the upper side of the sealing plate.
1. According to the downdraft biomass gasification furnace provided by the application, the inner cylinder is fixedly arranged in the furnace body, the annular space is formed between the furnace body and the inner cylinder, the air outlet pipe is arranged at the upper end of the outer wall of the furnace body, the spiral baffle plate is fixedly arranged on the side wall of the annular space, biomass gas generated in the annular space enters the annular space through the grate at the lower end and the ash receiving hopper during operation of the downdraft biomass gasification furnace, and dust in the biomass gas falls to the ash receiving hopper under the action of the blocking of the spiral baffle plate and the self gravity of the dust during the process that the biomass gas rises to the air outlet pipe from the lower end of the annular space, so that the content of the dust in the biomass gas is reduced.
2. According to the downdraft biomass gasifier provided by the application, the upper air distributor is fixedly arranged on the oxidation layer in the inner cylinder, the air distributor is communicated with the flow distributor through the pipeline, the air inlet of the flow distributor is connected with the air supply device, the annular pipeline and the straight pipe of the air distributor are provided with the vent holes, when the gasifier works, the air is introduced into the air distributor through the air supply device and is discharged to the oxidation layer through the vent holes of the air distributor, so that the air is directly introduced into the oxidation layer of the gasifier, the phenomenon that the oxidation layer moves upwards is avoided, and the air is equally distributed through the air distributor, so that the phenomenon of local burn-through caused by different reaction degrees of the oxidation layer due to uneven air flow is avoided.
3. According to the downdraft biomass gasifier provided by the application, the closed cylinders are fixedly arranged on two sides of the annular pipeline, the closed plates are fixedly arranged on two sides of the straight pipe to form the annular closed groove and the square closed groove, the sliding ring is slidably arranged in the annular closed groove, the sliding plate is slidably arranged in the square closed groove, the sliding ring and the sliding plate are fixedly connected, the connecting grooves and the exhaust holes are formed in the closed plates, the two adjacent sliding plates are fixedly connected at two ends of the stirring rod, when the gasifier works, air is introduced into the air distributor through the air supply device, the same amount of air is introduced into the annular pipeline on the upper side and the lower side through the air supply device, the air in the annular pipeline is discharged into the oxidation layer through the annular closed groove and the square closed groove, and the air entering the annular closed groove deteriorates the square closed groove to push the sliding ring and the sliding plate to move up and down, so that the stirring rod drives the stirring rod to stir biomass of the oxidation layer, and the biomass of the oxidation layer is prevented from falling down in the combustion process, and the phenomenon of biomass in the combustion process is avoided.
4. According to the downdraft biomass gasifier provided by the application, the hot smoke distributor is fixedly arranged on the pyrolysis layer, and during operation, tail gas containing heat is introduced into the hot smoke distributor, and CO 2 gas is contained in the tail gas to provide heat for pyrolysis of the pyrolysis layer, and when CO 2 enters the reduction layer, the concentration of reactants in the reduction layer is increased, so that the generated CO content is increased.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
The application may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a structure of an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic diagram of a second embodiment of the present invention;
FIG. 4 is a schematic view of the partial structure of the portion B in FIG. 3 according to the present invention;
FIG. 5 is a cross-sectional view taken at C-C of FIG. 3 in accordance with the present invention;
FIG. 6 is a cross-sectional view taken at D-D of FIG. 5 in accordance with the present invention;
FIG. 7 is a cross-sectional view taken at E-E of FIG. 5 in accordance with the present invention.
The furnace comprises a furnace body, 101, a feeding pipe, 102, an air outlet pipe, 2, a fire grate, 3, an ash receiving hopper, 4, a screw conveyor, 5, an inner cylinder, 6, an annular space, 7, a screw baffle plate, 8, an air distributor, 801, an annular pipeline, 802, a straight pipe, 803, a vent hole, 804, a closed cylinder, 805, a closed plate, 806, an annular closed groove, 807, a square closed groove, 808, a slip ring, 809, a sliding plate, 810, a limit bar, 811, a connecting groove, 812, an exhaust hole, 813, a stirring rod, 9, a flow distributor and 10, and a hot smoke distributor.
Description of the embodiments
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Examples
Referring to fig. 1 and 2, a downdraft biomass gasification furnace comprises a furnace body 1, a fire grate 2, an ash receiving hopper 3 and a screw conveyor 4, wherein a feeding pipe 101 is fixedly arranged at the middle position of the top end of the furnace body 1, an air outlet pipe 102 is fixedly arranged at the top end of one side of the furnace body 1, the fire grate 2 and the ash receiving hopper 3 are fixedly arranged at the lower position of the inner wall of the furnace body 1, the ash receiving hopper 3 is positioned below the fire grate 2, the fire grate 2 is used for supporting biomass fuel, the ash receiving hopper 3 is used for receiving ash falling from the fire grate 2, the screw conveyor 4 is fixedly arranged at the bottom end of the furnace body 1, a feeding hole of the screw conveyor 4 is communicated with a discharging hole of the ash receiving hopper 3, and the screw conveyor 4 is used for conveying ash.
The furnace body 1 is internally provided with an inner cylinder 5, the inner cylinder 5 is fixedly arranged at the upper end of the fire grate 2, an annular space 6 is formed between the furnace body 1 and the inner cylinder 5, spiral baffle plates 7 are fixedly arranged on the side walls of two sides of the annular space 6, the spiral baffle plates 7 are used for guiding biomass gas and separating dust in the biomass gas, the inner cylinder 5 is internally divided into a drying layer, a pyrolysis layer, an oxidation layer and a reduction layer from top to bottom, two air distributors 8 are fixedly arranged on the inner wall of the inner cylinder 5 corresponding to the oxidation layer, a flow distributor 9 is fixedly arranged on the outer wall of the furnace body 1, two air outlets of the flow distributor 9 are respectively communicated with air inlets of the two air distributors 8, and the air distributors 8 are used for guiding air and uniformly distributing the air.
The air distributor 8 comprises an annular pipeline 801, a straight pipe 802 and vent holes 803, the annular pipeline 801 of the air distributor 8 is fixedly arranged on the inner wall of the inner barrel 5, a plurality of vent holes 803 are formed in an annular array on the inner ring of the annular pipeline 801, a plurality of straight pipes 802 are arranged in an annular array on the inner ring of the annular pipeline 801, the straight pipe 802 is communicated with the annular pipeline 801, the vent holes 803 are formed in the lower end of the straight pipe 802 of the upper air distributor 8 at equal intervals, and a plurality of vent holes 803 are formed in the upper end of the straight pipe 802 of the lower air distributor 8.
The included angle formed by the spiral baffle 7 and the axis of the furnace body 1 is smaller than 45 degrees. When dust falls on the spiral baffle 7, the dust falls under the action of the gravity of the dust, so that dust accumulation on the spiral baffle 7 is prevented.
The thickness and position of the oxide layer within the inner barrel 5 can be varied by turning one of the air distributors 8 on or off, and the temperature of the oxide layer is controlled by controlling the ventilation of the air distributors 8.
The working principle of the first embodiment of the invention is as follows:
Referring to fig. 1 and 2, before the downdraft biomass gasification furnace is operated, biomass fuel is fed into the inner cylinder 5 through the feed pipe 101, and outside air is fed into the air distributor 8 through the air feeding device and the flow distributor 9.
In operation, air entering the air distributor 8 is guided by the annular pipeline 801 and the straight pipe 802, is uniformly distributed to the oxide layer through the vent holes 803 on the annular pipeline 801 and the straight pipe 802, and is introduced at fixed points, so that the position of the oxide layer is determined, the phenomenon that the oxide layer moves upwards due to the air introduced above is avoided, and the air is uniformly distributed by the air distributor 8, so that the air is uniformly distributed into the oxide layer, the biomass fuel in the oxide layer can uniformly react, and the phenomenon of burning-through caused by severe local reaction is avoided.
The biomass gas after the reaction of the oxidation layer and the reduction layer passes through the fire grate 2 and enters the ash receiving hopper 3, part of dust in the biomass gas with the ash receiving hopper 3 passes through the fire grate 2 and enters the annular space 6, the biomass gas and the dust are guided by the spiral baffle 7 in the upward moving process of the biomass gas in the annular space 6, the biomass gas moves upward in a rotating way, and the dust in the biomass gas falls into the ash receiving hopper 3 from the annular space 6 under the action of the spiral baffle 7 and the gravity of the dust, so that the dust content in the biomass gas is reduced.
Examples
In contrast to the first embodiment, referring to fig. 3, 4, 5, 6 and 7, the air distributor 8 includes an annular duct 801, a straight duct 802, a sealing cylinder 804 and a sealing plate 805, the annular duct 801 of the air distributor 8 is fixedly mounted on the inner wall of the inner cylinder 5, the sealing cylinders 804 are respectively fixedly sleeved on the outer sides and the inner sides of the two annular ducts 801, an annular sealing groove 806 is formed between the two sealing cylinders 804 and the annular duct 801, a vent hole 803 for communicating the annular sealing groove 806 is formed in the annular duct 801, a slip ring 808 is slidably mounted in the annular sealing groove 806, the slip ring 808 is hermetically mounted on the side wall of the annular sealing groove 806, a plurality of straight ducts 802 are annularly arranged on the inner ring of the annular duct 801, the straight duct 802 is communicated with the annular duct 801, the sealing plate 805 is fixedly mounted on the side wall of the straight duct 802, a square sealing groove 807 is formed between the sealing plate 805 and the straight duct 802, a vent hole 803 for communicating the square sealing groove 807 is formed in the straight duct 802, the square closed groove 807 is communicated with the annular closed groove 806, the top end and the bottom end of the inner wall of the square closed groove 807 are respectively fixedly provided with a limit strip 810, a sliding plate 809 is slidably arranged in the square closed groove 807, the sliding plate 809 is in sealing installation with the side wall of the square closed groove 807, the sliding plate 809 is positioned between the limit strips 810 at the top end and the bottom end, the sliding plate 809 is fixedly arranged on the inner wall of the sliding ring 808, the sealing plates 805 at the two sides of the straight pipe 802 are provided with connecting grooves 811, the connecting grooves 811 are positioned at the longitudinal central line of the sealing plates 805, the sealing plates 805 at the two sides of the straight pipe 802 are respectively provided with two rows of exhaust holes 812, the two rows of exhaust holes 812 are respectively positioned at the upper side and the lower side of the connecting grooves 811, the sealing cylinder 804 at the inner side is provided with two rows of exhaust holes 812 on the sealing cylinder 804, the exhaust holes 812 on the sealing plates 805 are the same as the exhaust holes 812 on the sealing plates 805, a plurality of stirring rods 813 are arranged between the two adjacent sliding plates 809, two ends of stirring rod 813 are fixedly installed on the side surfaces of two adjacent sliding plates 809 through connecting grooves 811.
When not in operation, the sliding plate 809 is erected on the limit bar 810 at the lower end, the sliding plate 809 plugs the vent hole 812 at the lower end of the sealing plate 805, the vent hole 812 at the upper end of the sealing plate 805 is in a communication state, when the sliding plate 809 slides to the limit bar 810 at the upper end, the sliding plate 809 plugs the vent hole 812 at the upper end of the sealing plate 805, and the vent hole 812 at the lower end of the sealing plate 805 is in a communication state.
The pyrolysis layer in the inner cylinder 5 is provided with a hot smoke distributor 10, and the hot smoke distributor 10 is fixedly arranged on the inner wall of the inner cylinder 5. The hot smoke distributor 10 is used for introducing tail gas containing heat to provide heat for the pyrolysis layer, and when the tail gas contains CO 2 gas and CO 2 gas enters the reduction layer, the concentration of reactants of the reduction layer is improved, so that the content of generated CO is increased.
The screen mesh is fixedly installed in the exhaust hole 812, biomass fuel capable of preventing combustion of an oxide layer enters the square closed groove 807 through the exhaust hole 812, and when the exhaust hole 812 ventilates each time, air passing through the exhaust hole 812 blows off particles in the screen mesh, so that the screen mesh is prevented from being blocked by the biomass fuel and dust.
The working principle of the second embodiment of the invention is as follows:
Referring to fig. 3,4, 5, 6 and 7, before the downdraft biomass gasifier operates, biomass fuel is fed into the inner cylinder 5 through the feed pipe 101, and outside air is delivered into the air distributor 8 through the air feeding device and the flow distributor 9.
When air flows through the flow distributor 9, the air is uniformly distributed into the upper annular pipeline 801 and the lower annular pipeline 801 by the flow distributor 9, after the air enters the annular pipeline 801 and the straight pipe 802, the air in the upper annular pipeline 801 and the straight pipe 802 enters the annular closed groove 806 and the square closed groove 807 through the vent holes 803, and the air in the upper annular pipeline 801 and the straight pipe 802 is released into the oxidation layer through the upper vent holes 812, as the lower vent holes 812 are blocked, the air in the lower annular pipeline 801 and the straight pipe 802 is not immediately released, the air in the lower annular pipeline 801 and the straight pipe 802 continuously enter, the air entering the annular closed groove 806 and the square closed groove 807 through the lower annular pipeline 801 and the straight pipe 802 gradually increases, the air in the lower annular closed groove 806 and the square closed groove 807 pushes the sliding ring 808 and the sliding plate 809 upwards until the sliding plate 809 moves to the upper end of the lower vent holes 812, the air in the lower annular closed groove 806 and the square closed groove 807 flows out through the lower vent holes 812, the air in the lower annular closed groove 801 and the straight pipe 802 uniformly pushes the two annular pipeline 801 and the straight pipe 802, the fuel is not pushed by the sliding plate 808, and the biomass is not combusted in the combustion layer, and the combustion is prevented from moving around the upper annular sealing plate and the upper sealing plate, and the combustion layer is avoided.
During operation, the tail gas containing heat is introduced into the hot smoke distributor 10 of the pyrolysis layer through the air inlet device, so that the tail gas provides heat for the pyrolysis layer, and CO 2 gas is contained in the tail gas, and when CO 2 in the tail gas enters the reduction layer, the concentration of reactants in the reduction layer is improved, so that the yield of CO is increased.
Claims (6)
1. The downdraft biomass gasification furnace comprises a furnace body (1), a fire grate (2) and an ash receiving hopper (3), wherein the fire grate (2) and the ash receiving hopper (3) are fixedly arranged at the lower position of the inner wall of the furnace body (1), the ash receiving hopper (3) is positioned below the fire grate (2), the downdraft biomass gasification furnace is characterized in that an inner cylinder (5) is fixedly arranged at the upper end of the fire grate (2), an annular space (6) is formed between the inner cylinder (5) and the furnace body (1), spiral baffle plates (7) are fixedly arranged on the side walls of two sides of the annular space (6), the inner cylinder (5) is internally divided into a drying layer, a pyrolysis layer, an oxidation layer and a reduction layer from top to bottom, two air distributors (8) are fixedly arranged on the inner wall of the inner cylinder (5) corresponding to the oxidation layer, flow distributors (9) are fixedly arranged on the outer wall of the furnace body (1), and two air outlets of the flow distributors (9) are respectively communicated with air inlets of the two air distributors (8);
The air distributor (8) comprises annular pipelines (801), straight pipes (802), sealing cylinders (804) and sealing plates (805), the annular pipelines (801) of the air distributor (8) are fixedly arranged on the inner wall of the inner cylinder (5), the sealing cylinders (804) are fixedly sleeved on the outer side and the inner side of each annular pipeline (801), annular sealing grooves (806) are formed between the two sealing cylinders (804) and the annular pipelines (801), vent holes (803) communicated with the annular sealing grooves (806) are formed in the annular pipelines (801), sliding rings (808) are slidably arranged in the annular sealing grooves (806), a plurality of straight pipes (802) are arranged on the inner ring of the annular pipelines (801), the straight pipes (802) are communicated with the annular pipelines (801), sealing plates (805) are fixedly arranged on the side walls of the straight pipes (802), square sealing grooves (807) are formed between the sealing plates (805) and the straight pipes (802), vent holes (803) communicated with the square sealing grooves (807) are formed in the annular sealing grooves (803), and sliding rings (809) are fixedly arranged on the inner walls (807) of the sliding plates (803) and are fixedly connected with the sliding plates (807), the utility model discloses a stirring device for a water heater, including straight tube (802), sealing plate (805) of both sides of straight tube (802), connecting groove (811) top and below of straight tube (802) are offered respectively and are had been seted up exhaust hole (812), inboard on sealing cylinder (804), exhaust hole (812) on sealing cylinder (804) are the same with exhaust hole (812) on sealing plate (805) high, adjacent two be equipped with a plurality of puddlers (813) between slide (809), the both ends of puddler (813) are through connecting groove (811) fixed mounting respectively in two adjacent slide (809) sides.
2. A downdraft biomass gasifier according to claim 1, characterized in that the helical baffle (7) forms an angle of less than 45 ° with the axis of the furnace body (1).
3. The downdraft biomass gasifier according to claim 1, wherein a hot smoke distributor (10) is fixedly mounted on the inner wall of the inner cylinder (5), and the hot smoke distributor (10) is positioned on a pyrolysis layer in the inner cylinder (5).
4. The downdraft biomass gasifier of claim 1, wherein a screen is fixedly mounted in the exhaust port (812).
5. The downdraft biomass gasifier of claim 1, wherein a top end and a bottom end of the inner wall of the square closed groove (807) are fixedly provided with limit bars (810) respectively.
6. The downdraft biomass gasifier according to claim 5, wherein the sliding plate (809) is arranged on a limit bar (810) at the lower end when not in operation, the sliding plate (809) blocks the exhaust hole (812) at the lower side of the sealing plate (805), and the sliding plate (809) blocks the exhaust hole (812) at the upper side of the sealing plate (805) when sliding to the limit bar (810) at the upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310557948.6A CN116731748B (en) | 2023-05-18 | 2023-05-18 | A downdraft biomass gasifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310557948.6A CN116731748B (en) | 2023-05-18 | 2023-05-18 | A downdraft biomass gasifier |
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| CN116731748B true CN116731748B (en) | 2025-10-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202343019U (en) * | 2011-09-21 | 2012-07-25 | 玉环县太平洋机械厂 | Pretreatment dust collection device |
| CN104087342A (en) * | 2014-07-31 | 2014-10-08 | 邱云原 | Biomass gasification furnace capable of decoking by utilizing furnace body sandwich structure |
| CN210215258U (en) * | 2019-04-30 | 2020-03-31 | 安徽香杨新能源科技发展股份有限公司 | Biomass gasification furnace |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201406408Y (en) * | 2009-05-07 | 2010-02-17 | 司振方 | Downdraft straw gasifier |
| US8845769B2 (en) * | 2010-01-19 | 2014-09-30 | Zeropoint Clean Tech, Inc. | Downdraft gasifier with improved stability |
| JP2020105451A (en) * | 2018-12-28 | 2020-07-09 | ユア・エネルギー開発株式会社 | Gasification furnace using biomass raw material |
| CN213803653U (en) * | 2020-11-11 | 2021-07-27 | 江苏中顺节能科技有限公司 | Downdraft biomass gasification furnace |
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- 2023-05-18 CN CN202310557948.6A patent/CN116731748B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202343019U (en) * | 2011-09-21 | 2012-07-25 | 玉环县太平洋机械厂 | Pretreatment dust collection device |
| CN104087342A (en) * | 2014-07-31 | 2014-10-08 | 邱云原 | Biomass gasification furnace capable of decoking by utilizing furnace body sandwich structure |
| CN210215258U (en) * | 2019-04-30 | 2020-03-31 | 安徽香杨新能源科技发展股份有限公司 | Biomass gasification furnace |
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