CN101654629A - Biomass gasifier - Google Patents
Biomass gasifier Download PDFInfo
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- CN101654629A CN101654629A CN 200910042134 CN200910042134A CN101654629A CN 101654629 A CN101654629 A CN 101654629A CN 200910042134 CN200910042134 CN 200910042134 CN 200910042134 A CN200910042134 A CN 200910042134A CN 101654629 A CN101654629 A CN 101654629A
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- grate
- ash
- gray moving
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- moving rod
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
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Abstract
The invention discloses a biomass gasifier, comprising a gasifier body, a grate, an ash chamber, a support for supporting the gasifier and an ash discharging mechanism, wherein, the grate is arrangedin the gasifier body; the ash chamber is positioned below the gasifier body; the grate is in a flat structure with no hole in the middle; an ash discharging hole is arranged at the edge part at whichthe inner walls of the grate is connected with the gasifier body; an ash poking mechanism used for poking the ash residue on the grate into the ash discharging hole is additionally arranged on the grate; and the ash poking mechanism is connected with an ash poking drive mechanism which is arranged in a shield positioned below of the grate. By adopting the ash poking drive mechanism to drive the ash poking mechanism, the invention can realize the purpose of continuous ash discharge of ash residue on the grate, is beneficial for successfully carrying out the chemical reaction of biomass raw materials to improve the work efficiency of the gasifier, the middle part of the gasifier is in a flat structure with no hole, thereby avoiding the defect of materials leakage of the existing grate; and the shield arranged the ash chamber below the grate is used for protecting the ash poking drive mechanism.
Description
Technical field
The present invention relates to a kind of vapourizing furnace, particularly a kind of biomass gasifying furnace is particularly useful for less, the difficult biomass materials of putting up a bridge of particle such as husk.
Background technology
But hydrocarbon polymer such as biomass, coal is directly or indirectly by a most important class stored energy source that photosynthesis produced on the earth, especially biomass energy, inexhaustible because of it, become mankind nowadays one of the renewable energy source of worth development and utilization.
Gasification is one of important way of biomass energy and coal conversion using, and fixed-bed gasification furnace is to adopt gasification mode to containing the minimum gasification type of furnace that requires of hydrocarbon property of raw material, and wherein, grate is the vitals of decision vapourizing furnace excellent property.
As shown in Figure 1, it is the one-piece construction synoptic diagram of downdraft vapourizing furnace in the prior art, vapourizing furnace 1 comprises body of heater 11, grey chamber 12, grate 13, support 14 and ash exhauster, ash exhauster adopts ash discharge spiral 15 in the diagram, grate 13 is for offering the slab construction of several through holes, and grate 13 levels are installed on body of heater 11 lower port, and grey chamber 12 is positioned at the below of body of heater 11, ash discharge spiral 15 is installed in the bottom of grey chamber 12, and the bottom that support 14 is arranged on grey chamber 12 is used to support whole vapourizing furnace 1.Its working process is as follows: air A enters in the body of heater 11 from body of heater 11 open tops, inflammable gas B draws from the pneumatic outlet on vapourizing furnace top, biomass material is after forming lime-ash on the grate 13, in the through hole decline ash entrance chamber 12 of lime-ash from the grate 13, ash discharge spiral 15 is discharged the lime-ash in the grey chamber 12 outside the vapourizing furnace, but there is following defective in existing grate:
(1) do not have the function of continuous ash discharge, lime-ash is easy to be deposited on the grate, causes the working efficiency of vapourizing furnace low;
(2) inflammable gas that produces owing to vapourizing furnace needs draw by the through hole of grate, and the lime-ash accumulation easily causes through hole to stop up, and causes inflammable gas to pass through, thereby directly influences the gas deliverability of vapourizing furnace;
(3) several through holes of offering on grate tend to cause the less biomass material of husk equal-volume to leak down in through hole, cause leaking the defective of material;
(4) structure of existing grate is very simple, is difficult to additional automatic control system thereon and controls the cindery speed of row, has therefore caused the working efficiency of existing vapourizing furnace can't satisfy the requirement of modern production automatization.
Summary of the invention
The object of the present invention is to provide a kind of ash discharge slag continuously, can improve the gas producing efficiency of vapourizing furnace and avoid the leak biomass gasifying furnace of material.
Above-mentioned purpose of the present invention realizes by the following technical solutions: a kind of biomass gasifying furnace, comprise body of heater, grate, grey chamber, be used to support the support and the ash exhauster of vapourizing furnace, described grate is located in the body of heater, described grey chamber is positioned at the below of body of heater, it is characterized in that described grate is the slab construction of middle part atresia, ash-hole is provided with along the edge that the inwall of described grate and body of heater joins; Also have additional the gray moving mechanism that is used for the lime-ash on the grate is dialled in described ash-hole on described grate, described gray moving mechanism is connected with the gray moving driving mechanism, and described gray moving driving mechanism is located at a guard shield that is positioned at described grate below.
The present invention adopts gray moving drive mechanism gray moving mechanism, can realize purpose to the continuous ash discharge of lime-ash on the grate, help carrying out smoothly of biomass material chemical reaction, can improve the working efficiency of vapourizing furnace greatly, because the grate middle part is the plate-like structure of atresia, substantially can not leak material, thereby avoided existing grate to leak the defective of material, and because ash-hole is located at the edge of grate, the size of ash-hole also can be bigger, even can be annular through-hole, therefore, be difficult for being stopped up by lime-ash, inflammable gas can be drawn from ash-hole smoothly, further increases the gas deliverability of vapourizing furnace; Be arranged on guard shield in the grey chamber of grate below and then be used to protect gray moving driving mechanism below grate, make its can be owing to the hot environment in the vapourizing furnace production process and the influence of constantly being dialled the high-temperature ash that falls be damaged.
As one embodiment of the present invention, described gray moving mechanism comprises the gray moving rod and is used to drive the gray moving rod rotating shaft that the gray moving rod rotates, described gray moving rod laterally is located in the rotating shaft of gray moving rod and is positioned at the top of grate, the rotating shaft of described gray moving rod is installed in the open holes on the tubular guard shield of grate below by bearing after grate is passed in grate top, and cod is set in the bottom of described gray moving rod rotating shaft, so that the rotating shaft of described gray moving rod can be rotated, and drive gray moving rod rotation gray moving under the driving of described gray moving driving mechanism.
The present invention can also have following embodiment: described grate is installed on the end face of described guard shield, and the outline of this grate is less than the profile of inboard wall of furnace body, and the circular clearance that has between the inwall of its outer rim and body of heater has promptly formed ash-hole.
As a kind of improvement of the present invention, in order to regulate the size of ash-hole, the bottom of described guard shield is arranged on the lifting device that is used for the lifting grate, described lifting device is connected with lift drive mechanism, realize the lifting of grate, the size that is used to regulate the ash-hole that forms between grate and inboard wall of furnace body by the lifting guard shield.When the present invention need arrange the lime-ash of agglomerate, the operation lifting device descends so that grate drops to grey indoor, make the vertical spacing of ash-hole increase, promptly increased ash-hole, gray moving mechanism can discharge lime-ash from the ash-hole at grate edge, the ash discharge amount is increased greatly, discharge outside the vapourizing furnace by the ash discharge spiral lime-ash that ash is indoor again.
As one embodiment of the present invention, the bottom surface of described grate directly is fixed on the end face of guard shield, bottom, described grey chamber has the open holes that the cover body gabarit with guard shield adapts, guard shield combines with grey chamber by this open holes, make the top of guard shield be positioned at grey indoor, it is outdoor that its underpart then is exposed to ash, exposes the outdoor guard shield sidewall of ash and be provided with actuating doors, is used for the equipment that is positioned at guard shield is installed or safeguarded; Between the open holes peritreme of the sidewall of described guard shield and grey chamber, be provided with the sealed structure of leakproof ash.
As another embodiment of the invention, a grate installation shaft of extending is set up in the centre of described grate downwards, and described grate installation shaft is telescoping structure and is placed in the rotating shaft of gray moving rod, and the tubular open holes that passes bottom the grey chamber is installed on the guard shield; Be provided with the support floor that several are used for the support grate between described grate and its grate installation shaft, described guard shield is positioned at the lower outer of grey chamber, also be with chuck on the described grate installation shaft, the inner edge of described chuck is stuck in the grate installation shaft, is provided with the sealed structure of leakproof ash between its outer rim and the tubular open holes.
The present invention has under the situation of grate installation shaft at grate, chuck can specifically adopt two ring flanges, when needs dismounting or installation, by the dismounting ring flange, the top of the related grate installation shaft of grate and the lower section of grate installation shaft can be installed respectively or dismantle, and installation is convenient; Sealed structure between the hole wall of employing ring flange and grey chamber tubular open holes, ring flange contacts with the open holes rigidity when having avoided the grate lifting; In addition, support floor, also can adopt shaft-like other supporting structure that waits except adopting the tabular structure of trilateral.
As one embodiment of the present invention, described leakproof ash sealed structure comprises graphite bar and draw-in groove, on the outer rim of the open holes peritreme of grey chamber or chuck, described draw-in groove is set, be used for described graphite bar is installed in this draw-in groove, the side that described graphite bar is positioned at the notch place is close on the hole wall of tubular open holes of the sidewall of guard shield or grey chamber.
As improvement of the present invention, the sealed structure that also is provided with the leakproof ash between position and the rotating shaft of gray moving rod is passed in the rotating shaft of gray moving rod on the described grate, specifically can adopt annular graphite bar to seal.
As a kind of improvement of the present invention, also have additional poker in the rotating shaft of described gray moving rod and stir rod, described poker, stirring rod and gray moving rod set gradually from top to bottom.Poker and stir rod and strengthen stirring to raw material prevents raw material bridging slagging scorification, makes the intravital raw material uniform mixing of stove, helps abundant combustion reactions, and provides favourable condition for continuous discharging slag.
The present invention also has following embodiment:
Described gray moving rod, poker and stirring rod are formed by connecting by several rod-like members respectively, it is curved to constitute yi word pattern, cross, Y-shaped or a word respectively, each rod-like members is all in the same plane, and the shape of cross section of described rod-like members is that trilateral, circle or rectangle are arbitrary.Wherein, the rod-like members shape of cross section of gray moving rod is a preferred implementation to adopt rectangle; Poker can adopt the crotch structure, and promptly rod-like members is upturned and not at grade, and this kind structure helps strengthening the stirring to raw material.
The surface of described grate is laid with lagging material.Lagging material can prolong the work-ing life of grate, and described lagging material can adopt refractory cements.
Described guard shield adopts provision for thermal insulation, can lay lagging material on the cover body of guard shield, specifically can adopt refractory cements.
Compared with prior art, the present invention has following significant technique effect:
(1) the present invention is provided with gray moving mechanism and gray moving driving mechanism on grate, can realize arranging continuously cindery function, because the grey quantity of slag reduces in the burner hearth, helps the smooth reaction of biomass material, improves the working efficiency of vapourizing furnace;
(2) inflammable gas of Chan Shenging is drawn by the ash-hole of grate edge, because gray moving mechanism is set on grate, and ash-hole is located at the edge of grate, the size of ash-hole also can be bigger, even can be annular through-hole, therefore, grate is difficult for being stopped up by lime-ash, has further increased the gas deliverability of vapourizing furnace;
(3) grate adopts the complete slab construction in middle part, and the grate lifting device is set below grate, at when filling with substance, lifting device rises to grate in the body of heater, can reduce and anti-leak-stopping material, and that grate drops to is grey when indoor, ash-hole constantly increases, make the ash discharge amount increase greatly, particularly can discharge the lime-ash of agglomerate, further improve the working efficiency of vapourizing furnace;
(4) in order to realize the automatization control of vapourizing furnace ash discharge, can adopt Controlling System, according to each reaction parameter in the body of heater, this Controlling System can be controlled the up-and-down movement of grate and rotatablely moving of gray moving mechanism automatically, to satisfy the needs of modern production automatization;
(5) of the present invention simple in structure, practical, be widely used in the gasification that particle is little, be difficult for the biomass material of bridging.
Description of drawings
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the one-piece construction synoptic diagram of existing downdraft vapourizing furnace;
Fig. 2 is the structural representation of the embodiment of the invention 1;
Fig. 3 is the structural representation of the embodiment of the invention 2;
Fig. 4 is the local enlarged diagram of A among Fig. 2;
Fig. 5 is the local enlarged diagram of B among Fig. 3;
Fig. 6 is the schematic top plan view of embodiment 1 gray moving rod;
Fig. 7 is the schematic top plan view of embodiment 2 pokers;
Fig. 8 is the schematic top plan view of embodiment 2 gray moving rods;
Fig. 9 is the schematic top plan view that embodiment 2 stirs rod.
Embodiment
As shown in Figure 2, biomass material adopts husk in the present embodiment, a kind of biomass gasifying furnace 1 of the present invention, comprise body of heater 11, grate 13, ash chamber 12, be used to support the support 14 and the ash exhauster of vapourizing furnace 1, grate 13 adopts steel alloy, be laid with lagging material on its surface, lagging material adopts refractory cements, grate 13 levels are located in the body of heater 11, ash chamber 12 is positioned at the below of body of heater 11, and grate 13 be the slab construction of middle part atresia, edge's setting that ash-hole 2 joins along the inwall of grate 13 and body of heater 11, the outline of this grate 13 is less than the profile of body of heater 11 inwalls, and the circular clearance that has between the inwall of its outer rim and body of heater 11 has promptly formed ash-hole 2.
Also having additional the gray moving mechanism that is used for the lime-ash on the grate 13 is dialled in ash-hole 2 on the grate 13, gray moving mechanism is connected with the gray moving driving mechanism, and the gray moving driving mechanism is located at a guard shield 5 that is positioned at grate 13 belows.Gray moving mechanism comprises gray moving rod 3 and is used to drive the gray moving rod rotating shaft 4 that gray moving rod 3 rotates, gray moving rod 3 laterally is located in the gray moving rod rotating shaft 4 and is positioned at the top of grate 13, the rotating shaft 4 of gray moving rod is from open holes on grate 13 back is installed in grate 13 belows by bearing 51 the tubular guard shield 5 is passed in grate 13 tops, and cod 52 is set in the bottom of gray moving rod rotating shaft 4, so that gray moving rod rotating shaft 4 can be rotated, and drive the 3 rotation gray movings of gray moving rod under the driving of gray moving driving mechanism.The gray moving driving mechanism comprises propulsion source and transmission rig, and in the present embodiment, propulsion source adopts drive-motor 6, transmission rig then adopts driving gear set, wherein, the driving toothed gear in the driving gear set is connected with the output shaft of drive-motor, and follower gear is meshed with driving toothed gear, follower gear is installed in the rotating shaft of gray moving rod, when drive-motor 6 work,, drive the rotating shaft of gray moving rod and rotate by driving and driven geartransmission, and then drive 3 rotations of gray moving rod, the lime-ash on the grate 13 is dialled down.
In order to realize the automatization control of vapourizing furnace ash discharge, can adopt Controlling System, according to each reaction parameter in the body of heater, this Controlling System can be controlled the up-and-down movement of grate and rotatablely moving of gray moving mechanism automatically, to satisfy the needs of modern production automatization.
The bottom surface of grate 13 directly is fixed on the end face of guard shield 5, ash chamber 12 bottoms have the open holes that the cover body gabarit with guard shield 5 adapts, guard shield 5 combines with grey chamber 12 by this open holes, make the top of guard shield 5 be positioned at grey chamber 12, its underpart then is exposed to outside the grey chamber 12, reveal ash discharging chamber's 12 outer guard shield 5 sidewalls and be provided with actuating doors (not drawing among the figure), be used for the equipment that is positioned at guard shield 5 is installed or safeguarded, between the open holes peritreme of the sidewall of guard shield 5 and grey chamber 12, be provided with the sealed structure of leakproof ash, the sealing structure comprises graphite bar 16 and draw-in groove 17, open holes peritreme in grey chamber 12 is provided with draw-in groove 17, be used for graphite bar 16 is installed in this draw-in groove 17, the sidewall of guard shield 5 is close in the side that graphite bar 16 is positioned at the notch place, has guaranteed that lime-ash in the grey chamber 12 can be between guard shield 5 and grey chamber 12 spill (referring to Fig. 4) the slit of contact site.The sealed structure that also is provided with the leakproof ash between position and the gray moving rod rotating shaft 4 is passed in gray moving rod rotating shaft 4 on the grate 13, specifically can adopt annular graphite bar to seal.
In the present embodiment, gray moving rod 3 is formed by connecting by 2 rod-like members, constitutes yi word pattern, and this rod-like members is in the same plane, and the shape of cross section of rod-like members is rectangle (referring to Fig. 6), and rectangular cross section is the preferred implementation of the rod-like members cross section of gray moving rod of the present invention.
Working process of the present invention is as follows: biomass material husk C is from its top feed of vapourizing furnace, and air A enters in the body of heater from the gas inlet at vapourizing furnace middle part, and inflammable gas B draws from the pneumatic outlet of upper of furnace body; When needs increase load or need to get rid of bridging, Controlling System control drive-motor, make the rotating shaft of gray moving rod rotate comparatively fast, the gray moving rod is also very fast thereupon must to be rotated, indoor to get rid of bridging or lime-ash is dialled in ash apace, otherwise the rotating shaft of gray moving rod is rotated slowlyer, and the gray moving rod also rotates slower; In the gray moving rod rotate to be dialled cindery process, in the time of can't normally rotating if the gray moving rod is stuck in the lime-ash, can make gray moving rod rotating shaft counter-rotating by the control drive-motor, the gray moving rod reverses to break away from stuck position thereupon.By the rotation of gray moving rod on grate, the gray moving rod constantly dial in lime-ash in the ash-hole and fall into the ash indoor, by the ash discharge spiral (not shown) that is installed on the ash output hole 20 lime-ash is discharged outside the vapourizing furnace again.
In order to regulate the size of ash-hole 2, the bottom of guard shield 5 is arranged on the lifting device 53 that is used for lifting grate 13, lifting device 53 is connected with lift drive mechanism, realize the lifting of grate 13 by lifting guard shield 5, be used to regulate the size of the ash-hole 2 that forms between grate 13 and body of heater 11 inwalls, when needing to discharge the lime-ash of agglomerate, operation lifting device 53 descends so that grate 13 drops in the grey chamber 12, make the vertical spacing of ash-hole 2 increase, promptly increased ash-hole 2, gray moving mechanism can discharge lime-ash from the ash-hole 2 at grate 13 edges, the ash discharge amount is increased greatly, by the ash discharge spiral lime-ash in the grey chamber 12 is discharged outside the vapourizing furnace 1 again.
Because the indoor cindery temperature of ash is higher, not damaged by high temperature in order to protect guard shield 5, guard shield 5 adopts provision for thermal insulation, promptly lays lagging material on the cover body of guard shield 5, specifically can adopt refractory cements.
As shown in Figure 3, the difference of present embodiment and embodiment 1 is: biomass material adopts fine coal, the material of grate 13 is a cast alloy iron, a grate installation shaft 9 of extending is set up in the centre of grate 13 downwards, grate installation shaft 9 is telescoping structure and is placed in the gray moving rod rotating shaft 4, and the tubular open holes 25 that passes 12 bottoms, grey chamber is installed on the guard shield 5, be provided with the support floor 24 of several rod shaped structure that are used for support grate 13 between grate 13 and its grate installation shaft 9, guard shield 5 is positioned at the lower outer of grey chamber 12, also be with chuck on the grate installation shaft 9, in the present embodiment, chuck adopts two ring flanges 18, when needs dismounting or installation, by dismounting ring flange 18, the top of grate 13 related grate installation shaft 9 and the lower section of grate installation shaft 9 can be installed respectively or dismantle, and installation is convenient; The inner edge of ring flange 18 is stuck in the grate installation shaft 9, be provided with the sealed structure of leakproof ash between its outer rim and the tubular open holes 25, and the sealing structure is located between two ring flanges 18, sealed structure comprises graphite bar 27 and draw-in groove 26, draw-in groove 26 is set on the outer rim of ring flange 18, be used for graphite bar 27 is installed in this draw-in groove 26, the side that graphite bar 27 is positioned at the notch place is close on the hole wall of tubular open holes 25 of grey chamber (referring to Fig. 5).
In the present embodiment, also have additional poker 21 in the gray moving rod rotating shaft 4 and stir rod 22, poker 21, stirring rod 22 and gray moving rod 3 set gradually from top to bottom, the stirring that poker 21 and stirring rod 22 are strengthened raw material, prevent raw material bridging slagging scorification, make the intravital raw material uniform mixing of stove, help abundant combustion reactions, and provide favourable condition for continuous discharging slag; Gray moving rod 3 is formed by connecting by two rod-like members, constitutes a word curved (referring to Fig. 8), and the cross section of rod-like members is a rectangle; Poker 21 is crotch shape (referring to Fig. 3), is formed by connecting by 3 rod-like members, constitutes Y-shaped (referring to Fig. 7), and the cross section of this rod-like members is a trilateral; Stir rod 22 and be formed by connecting by 4 rod-like members, constitute cross (referring to Fig. 9), the cross section of this rod-like members is circular.
Biomass material fine coal C is from the top of gasification furnace charging, and air A enters in the body of heater from the gas inlet at vapourizing furnace middle part, and inflammable gas B draws from the pneumatic outlet on vapourizing furnace top; When charging, blow-on or blowing out, lifting device rises, and this moment, grate rose up in the body of heater, can prevent that fine coal runs off, and has avoided leaking the defective of material, has guaranteed making full use of of fine coal; When needs increase load or need to get rid of bridging, the rotating shaft of Controlling System control gray moving rod is rotated comparatively fast, and then the gray moving rod also rotates than very fast, poker and stirring rod are strengthened cindery stirring, prevent raw material bridging slagging scorification, otherwise, then rotate slowlyer by the rotating shaft of Controlling System control gray moving rod; During the lime-ash of row's agglomerate, lifting device drives grate and descends, and ash-hole increases, and it is indoor constantly lime-ash to be dialled in ash from the edge of grate by the gray moving rod, and ash discharge spiral 52 is discharged lime-ash outside the vapourizing furnace.
As other embodiment, ash-hole is provided with along the edge that the inwall of grate and body of heater joins, and ash-hole can be an annular through-hole of being located at the grate edge; Support floor except adopting rod shaped structure, also can adopt other supporting structures such as the tabular structure of trilateral.
Embodiments of the present invention are not limited thereto; the gray moving rod; the structure of poker and stirring rod has multiple variation; according to foregoing of the present invention; the material of grate also can be common used materials such as stainless steel; propulsion source also can be selected existing other power-equipment; transmission rig also can adopt other existing mechanical transmission rigs such as belt transmission; therefore utilize the ordinary skill knowledge and the customary means of this area; do not breaking away under the above-mentioned basic fundamental thought of the present invention prerequisite; the present invention can also make the modification of other various ways; replace or change, all drop within the rights protection scope of the present invention.
Claims (10)
1, a kind of biomass gasifying furnace, comprise body of heater, grate, grey chamber, be used to support the support and the ash exhauster of vapourizing furnace, described grate is located in the body of heater, described grey chamber is positioned at the below of body of heater, it is characterized in that: described grate is the slab construction of middle part atresia, and ash-hole is provided with along the edge that the inwall of described grate and body of heater joins; Also have additional the gray moving mechanism that is used for the lime-ash on the grate is dialled in described ash-hole on described grate, described gray moving mechanism is connected with the gray moving driving mechanism, and described gray moving driving mechanism is located at a guard shield that is positioned at described grate below.
2, biomass gasifying furnace according to claim 1, it is characterized in that: described gray moving mechanism comprises the gray moving rod and is used to drive the gray moving rod rotating shaft that the gray moving rod rotates, described gray moving rod laterally is located in the rotating shaft of gray moving rod and is positioned at the top of grate, the rotating shaft of described gray moving rod is installed in the open holes on the tubular guard shield of grate below by bearing after grate is passed in grate top, and cod is set in the bottom of described gray moving rod rotating shaft, so that the rotating shaft of described gray moving rod can be rotated, and drive gray moving rod rotation gray moving under the driving of described gray moving driving mechanism.
3, biomass gasifying furnace according to claim 2, it is characterized in that: described grate is installed on the end face of described guard shield, the outline of this grate is less than the profile of inboard wall of furnace body, and the circular clearance that has between the inwall of its outer rim and body of heater has promptly formed ash-hole.
4, biomass gasifying furnace according to claim 3, it is characterized in that: the bottom of described guard shield is arranged on the lifting device that is used for the lifting grate, described lifting device is connected with lift drive mechanism, realize the lifting of grate, the size that is used to regulate the ash-hole that forms between grate and inboard wall of furnace body by the lifting guard shield.
5, biomass gasifying furnace according to claim 4, it is characterized in that: the bottom surface of described grate directly is fixed on the end face of guard shield, bottom, described grey chamber has the open holes that the cover body gabarit with guard shield adapts, guard shield combines with grey chamber by this open holes, make the top of guard shield be positioned at grey indoor, it is outdoor that its underpart then is exposed to ash, exposes the outdoor guard shield sidewall of ash and be provided with actuating doors, is used for the equipment that is positioned at guard shield is installed or safeguarded; Between the open holes peritreme of the sidewall of described guard shield and grey chamber, be provided with the sealed structure of leakproof ash.
6, biomass gasifying furnace according to claim 2, it is characterized in that: a grate installation shaft of extending is set up in the centre of described grate downwards, described grate installation shaft is telescoping structure and is placed in the rotating shaft of gray moving rod, and the tubular open holes that passes bottom the grey chamber is installed on the guard shield; Be provided with the support floor that several are used for the support grate between described grate and its grate installation shaft, described guard shield is positioned at the lower outer of grey chamber, also be with chuck on the described grate installation shaft, the inner edge of described chuck is stuck in the grate installation shaft, is provided with the sealed structure of leakproof ash between its outer rim and the tubular open holes.
7, according to claim 5 or 6 described biomass gasifying furnaces, it is characterized in that: described leakproof ash sealed structure comprises graphite bar and draw-in groove, on the outer rim of the open holes peritreme of grey chamber or chuck, described draw-in groove is set, be used for described graphite bar is installed in this draw-in groove, the side that described graphite bar is positioned at the notch place is close on the hole wall of tubular open holes of the sidewall of guard shield or grey chamber.
8, biomass gasifying furnace according to claim 7 is characterized in that: also have additional poker in the rotating shaft of described gray moving rod and stir rod, described poker, stirring rod and gray moving rod set gradually from top to bottom.
9, biomass gasifying furnace according to claim 8, it is characterized in that: described gray moving rod, poker and stirring rod are formed by connecting by several rod-like members respectively, it is curved to constitute yi word pattern, cross, Y-shaped or a word respectively, each rod-like members is all in the same plane, and the shape of cross section of described rod-like members is that trilateral, circle or rectangle are arbitrary.
10, biomass gasifying furnace according to claim 9 is characterized in that: be laid with lagging material on the surface of described grate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910042134 CN101654629B (en) | 2009-08-25 | 2009-08-25 | Biomass gasifier |
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|---|---|---|---|
| CN 200910042134 CN101654629B (en) | 2009-08-25 | 2009-08-25 | Biomass gasifier |
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| CN101654629A true CN101654629A (en) | 2010-02-24 |
| CN101654629B CN101654629B (en) | 2013-05-29 |
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| CN 200910042134 Expired - Fee Related CN101654629B (en) | 2009-08-25 | 2009-08-25 | Biomass gasifier |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311808A (en) * | 2011-08-16 | 2012-01-11 | 济南波德能源科技有限公司 | Combustion gas generator of biomass |
| CN102345862A (en) * | 2011-08-26 | 2012-02-08 | 山东省科学院能源研究所 | Biomass particle combustion apparatus and combustion method for the same |
| CN102994178A (en) * | 2011-09-13 | 2013-03-27 | 南京绿展能源有限公司 | Domestic garbage vaporizing furnace |
| CN103194264A (en) * | 2013-04-10 | 2013-07-10 | 周福忠 | Gasification furnace |
| CN104140848A (en) * | 2014-07-01 | 2014-11-12 | 江苏金江生物能源科技有限公司 | Mother-son type garbage straw gasification furnace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1888543A (en) * | 2006-07-13 | 2007-01-03 | 浙江大学 | Domestic efficient biomass gasification stove |
-
2009
- 2009-08-25 CN CN 200910042134 patent/CN101654629B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311808A (en) * | 2011-08-16 | 2012-01-11 | 济南波德能源科技有限公司 | Combustion gas generator of biomass |
| CN102345862A (en) * | 2011-08-26 | 2012-02-08 | 山东省科学院能源研究所 | Biomass particle combustion apparatus and combustion method for the same |
| CN102345862B (en) * | 2011-08-26 | 2013-11-27 | 山东省科学院能源研究所 | Biomass particle combustion apparatus and combustion method for same |
| CN102994178A (en) * | 2011-09-13 | 2013-03-27 | 南京绿展能源有限公司 | Domestic garbage vaporizing furnace |
| CN103194264A (en) * | 2013-04-10 | 2013-07-10 | 周福忠 | Gasification furnace |
| CN104140848A (en) * | 2014-07-01 | 2014-11-12 | 江苏金江生物能源科技有限公司 | Mother-son type garbage straw gasification furnace |
| CN104140848B (en) * | 2014-07-01 | 2016-03-02 | 江苏金江生物能源科技有限公司 | A kind of primary and secondary rubbish stalk gasifier |
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| Publication number | Publication date |
|---|---|
| CN101654629B (en) | 2013-05-29 |
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