CN102230670B - Straw particle warm air blower set - Google Patents
Straw particle warm air blower set Download PDFInfo
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- CN102230670B CN102230670B CN 201110154552 CN201110154552A CN102230670B CN 102230670 B CN102230670 B CN 102230670B CN 201110154552 CN201110154552 CN 201110154552 CN 201110154552 A CN201110154552 A CN 201110154552A CN 102230670 B CN102230670 B CN 102230670B
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Abstract
The invention discloses a straw particle warm air blower set which integrates a boiler burning a straw-class biomass particle fuel and heat dissipation tail end equipment and is convenient to use. The straw particle warm air blower set comprises a straw-class biomass particle boiler assembly, wherein the straw-class biomass particle boiler assembly is provided with a fan heat dissipation assembly and a hot water circulation assembly; the shell of the straw-class biomass particle boiler assembly is provided with a microcomputer control assembly; a fuel tank is fixedly connected in the shell of the straw-class biomass particle boiler assembly; the upper cover of the fuel tank is provided with a fuel tank cover; the lower part of the fuel tank is provided with a feeding assembly; an ash residue bucket is arranged below the biomass particle burner; a combustion chamber is arranged above the fire outlet of the biomass particle burner; an expansion tank is installed on the upper part of the interior of the shell; and the biomass particle burner comprises a combustion chamber assembly and a preheating air distribution chamber assembly.
Description
Technical field
The present invention relates to a kind of unit, relate in particular to a kind of straw particle warm air blower group.
Background technology
The boiler that now biological particles is utilized has the fruitful research and development of a lot of tools, has also produced a lot of outstanding technical schemes.Zhenyang, Liyang City gas-fired equipment manufacturing company as the Decree of Patent Office of China in 2009; The biomass granule fuel combustion heat-exchange boiler that Beijing Suyang Huanneng Technology Co., Ltd. declares.Granted publication number: CN201269623, number of patent application 200820041497.1.The independently burner that it has adopted feed system, air feed system, combustion system to make up.Burner is lower feeding, can effectively use the biomass granule fuel of wooden class, but still have deficiency in the utilization to the stalk biomass granular fuel, this boiler is difficult to the technical problem of the biomass granule fuel slagging scorification of solution stalk, and need connecting pipe and heat dissipation equipment separately when needing heating, use trouble.
Summary of the invention
The boiler that the purpose of this invention is to provide a kind of burning straw biolobic material granular fuel is combined into one with the heat radiation end-equipment, straw particle warm air blower group easy to use.
for achieving the above object, the technical solution used in the present invention is: a kind of straw particle warm air blower group, comprise stalk biomass particle boiler components, it is characterized in that: on described stalk biomass particle boiler components, fan radiating assembly and hot water circuit assembly are installed, on the housing of stalk biomass particle boiler components, the microcomputerized control assembly is installed, be fixedly connected with the fuel hopper that has through hole in the housing of stalk biomass particle boiler components, the fuel hopper is fixedly connected with the inner surface of the upper plate of housing, be stamped the hopper lid on the fuel hopper, the bottom of fuel hopper is equipped with feeding material component, the below of fuel hopper is designed with biomass particle burner, biomass particle burner is connected by tube connector with the fuel hopper, biomass particle burner communicates with the fuel hopper, the biomass particle burner below is designed with grey slag bucket, be designed with the combustion chamber above the crater of biomass particle burner, form heat-exchanging water tank between combustor outer casing and housing, top in housing is equipped with expansion tank, expansion tank is positioned at fuel hopper one side, water level signal point detection probe is installed in expansion tank, be designed with the heat exchange fire tube in housing, be fixedly connected with the deashing assembly in the heat exchange fire tube, be connected with the deashing pull bar on the deashing assembly, the deashing pull bar is positioned at hull outside, heat exchange fire tube below is expansion chamber, hull outside is equipped with air-introduced machine, air-introduced machine is corresponding with the sedimentation expansion chamber, the exit of air-introduced machine is equipped with the cigarette temperature detector and surveys signal probe, the boiler hot-water exit is equipped with the water temperature signal detection probe, biomass particle burner comprises combustion-chamber assembly and preheating distribution plenum assembly, combustion-chamber assembly and preheating distribution plenum components welding, combustion-chamber assembly and preheating distribution plenum assembly communicate, the front end of combustion-chamber assembly upwards has crater, the Front-end Design of combustion-chamber assembly has the fire grate support plate, have the hole on the combustion-chamber assembly base plate, the ash-removing plate assembly is installed on the combustion-chamber assembly base plate, the ash-removing plate assembly comprises ash-removing plate, have the ash-removing plate ash leakage hole on ash-removing plate, the rear end of ash-removing plate is fixedly connected with handle, be fixedly connected with removable fixed grate in combustion-chamber assembly, lay on removable fixed grate and fire grate support plate toward double action fire grate group, removable fixed grate, the fire grate support plate, form grey chamber toward double action fire grate group and combustion-chamber assembly base plate, the fire grate support plate, removable fixed grate and all have the fire-gate leakage ash hole on the double action fire grate group, comprise fire grate toward double action fire grate assembly, the bottom of the rear end of one of them fire grate is fixedly connected with the connection steel, connect steel and be fixedly connected with connecting plate, the top of connecting plate is fixedly connected with fire grate, the rear end of connecting plate is fixedly connected with reciprocal lever, preheating distribution plenum assembly upward opening, be designed with guide frame in preheating distribution plenum assembly, guide frame is divided into guide frame and lower guide frame, on preheating distribution plenum assembly, the charging interface is installed, the charging interface is corresponding with the opening on preheating distribution plenum assembly, preheating distribution plenum assembly upper design has siphunculus, be stamped the inspection cover cap on siphunculus, the reciprocal lever of scraping wings hole and past double action fire grate assembly is housed in preheating distribution plenum assembly, the scraping wings assembly comprises scraping wings, have the pusher plate hole on scraping wings, the scraping wings rear end is fixedly connected with reciprocal lever, the reciprocal lever of scraping wings assembly is arranged in lower guide frame, the rear end of two reciprocal levers connects by Connection Block, be connected with crankshaft connecting rod system on Connection Block, the end of crankshaft connecting rod system is connected with the decelerator motor, preheating distribution plenum assembly is equipped with air blast and hot wind ignition device outward, air blast is corresponding with the front end lower openings of preheating distribution plenum assembly, water level signal point detection probe is arranged in expansion tank, the water temperature signal detection probe is arranged on the boiler hot-water exit, the cigarette temperature detector is surveyed signal probe and is arranged on the chimney meatus draught fan exit, crankshaft connecting rod system comprises eccentric wheel, eccentric shaft and connecting rod, connecting rod is connected with connecting rod base by bearing pin, the joint cross-section of preheating distribution plenum assembly and preheating distribution plenum assembly is provided with a plurality of secondary air holes, one side of charging interface has sees the material window.
In this structure, the upper design of the opposite side of housing 9 has surface cooler 2, surface cooler 2 upper ends are connected with drainpipe 1, surface cooler 2 belows are designed with low noise axial fan 5, low noise axial fan 5 overcoats have fan radiating assembly 6, fan radiating assembly 6 lower ends are connected with circulating pump 8, are connected with water pipe on circulating pump 8, and water pipe is connected with stalk biomass particle boiler components 3.
Advantageous effect of the present invention is: due to this structure of the present invention, so this invention can not only use the lignocellulosic biomass granular fuel under controllable state, and can be at burning straw-like biomass granular fuel under controllable state, and do not need connecting pipe and heat dissipation equipment separately, directly being placed in needs the room of heating to heat with the warm braw form again.
Description of drawings
Fig. 1 is the front view after the present invention removes housing;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the A-A profile of Fig. 1;
Fig. 5 is the B-B profile of Fig. 2;
Fig. 6 is the front view of the stalk biomass particle boiler components in Fig. 1;
Fig. 7 is the rearview of Fig. 6;
Fig. 8 is the top view of Fig. 6;
Fig. 9 is the structural representation of biomass particle burner in Fig. 1;
Figure 10 is the structural representation of the circulatory system of the present invention.
In accompanying drawing: 1, blast pipe; 2, surface cooler; 3, stalk biomass particle boiler components; 4, microcomputerized control assembly; 5, low noise axial fan; 6, fan radiating assembly; 7, hot water circuit assembly; 8, circulating pump; 9, housing; 10, biomass particle burner; 11, feeding material component; 12, fuel hopper; 13, water level signal point detection probe; 14, deashing assembly; 15, air-introduced machine; 16, crater; 17, fire grate support plate; 18, ash-removing plate; 19, ash-removing plate ash leakage hole; 20, fire-gate leakage ash hole; 21, toward double action fire grate assembly; 22, connect steel; 23, removable fixed grate; 24, connecting plate; 25, ash-removing plate assembly; 26, reciprocal lever; 27, pusher plate hole; 28, handle; 29, guide frame; 30, inspection opening block; 31, connecting rod base; 32, see the material window; 33, charging interface; 34, secondary air hole; 35, water temperature signal detection probe; 36, deashing pull bar; 37, the cigarette temperature detector is surveyed signal probe; 38, expansion tank; 39, combustion-chamber assembly; 40, preheating distribution plenum assembly; 41, air blast; 42, decelerator motor; 43, eccentric shaft; 44, eccentric shaft; 45, connecting rod; 46, bearing pin; 47, hot wind ignition device.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments:
the present invention such as Fig. 1, 2, 3, , 4, 5, 6, 7, 8, 9, shown in 10, a kind of straw particle warm air blower group, comprise stalk biomass particle boiler components 3, fan radiating assembly 6 and hot water circuit assembly 7 are installed on stalk biomass particle boiler components 3, on the housing of stalk biomass particle boiler components 3, microcomputerized control assembly 4 is installed, be fixedly connected with the fuel hopper 12 that has through hole in the housing 9 of stalk biomass particle boiler components 3, fuel hopper 12 is fixedly connected with the inner surface of the upper plate of housing, be stamped the hopper lid on fuel hopper 12, the bottom of fuel hopper 12 is equipped with feeding material component 11, the below of fuel hopper 12 is designed with biomass particle burner 10, biomass particle burner 10 is connected by tube connector with fuel hopper 12, biomass particle burner 10 communicates with fuel hopper 12, biomass particle burner 10 belows are designed with grey slag bucket, crater 16 tops of biomass particle burner 10 are designed with the combustion chamber, form heat-exchanging water tank between combustor outer casing and housing, top in housing is equipped with expansion tank 38, expansion tank 38 is positioned at fuel hopper 12 1 sides, water level signal point detection probe 13 is installed in expansion tank 38, be designed with the heat exchange fire tube in housing, be fixedly connected with deashing assembly 14 in the heat exchange fire tube, be connected with deashing pull bar 36 on deashing assembly 14, deashing pull bar 36 is positioned at hull outside, heat exchange fire tube below is expansion chamber, hull outside is equipped with air-introduced machine 15, air-introduced machine 15 is corresponding with the sedimentation expansion chamber, the exit of air-introduced machine is equipped with the cigarette temperature detector and surveys signal probe 37, the boiler hot-water exit is equipped with water temperature signal detection probe 35, biomass particle burner 10 comprises combustion-chamber assembly 39 and preheating distribution plenum assembly 40, combustion-chamber assembly 39 and 40 welding of preheating distribution plenum assembly, combustion-chamber assembly 39 and preheating distribution plenum assembly 40 communicate, the front end of combustion-chamber assembly 39 upwards has crater 16, the Front-end Design of combustion-chamber assembly 39 has fire grate support plate 17, have the hole on combustion-chamber assembly 39 base plates, on combustion-chamber assembly 39 base plates, ash-removing plate assembly 25 is installed, ash-removing plate assembly 25 comprises ash-removing plate 18, have ash-removing plate ash leakage hole 19 on ash-removing plate 18, the rear end of ash-removing plate 18 is fixedly connected with handle 28, be fixedly connected with removable fixed grate 23 in combustion-chamber assembly 39, lay on removable fixed grate 23 and fire grate support plate 17 toward double action fire grate group 21, removable fixed grate 23, the fire grate support plate, form grey chamber toward double action fire grate group 21 and combustion-chamber assembly 39 base plates, fire grate support plate 17, removable fixed grate 23 and all have fire-gate leakage ash hole 20 on the double action fire grate group 21, comprise fire grate toward double action fire grate assembly 21, the bottom of the rear end of one of them fire grate is fixedly connected with and connects steel 22, connect steel 22 and be fixedly connected with connecting plate 24, the top of connecting plate 24 is fixedly connected with fire grate, the rear end of connecting plate 24 is fixedly connected with reciprocal lever 26, preheating distribution plenum assembly 40 upward openings, be designed with guide frame 29 in preheating distribution plenum assembly 40, guide frame 29 is divided into guide frame and lower guide frame, on preheating distribution plenum assembly 40, charging interface 33 is installed, charging interface 33 is corresponding with the opening on preheating distribution plenum assembly 40, preheating distribution plenum assembly 40 upper design have siphunculus, be stamped inspection cover cap 30 on siphunculus, the reciprocal lever 20 of scraping wings hole 27 and past double action fire grate assembly 21 is housed in preheating distribution plenum assembly 40, the scraping wings assembly comprises scraping wings, have pusher plate hole 27 on scraping wings, the scraping wings rear end is fixedly connected with reciprocal lever 26, the reciprocal lever 26 of scraping wings assembly is arranged in lower guide frame, the rear end of two reciprocal levers 26 connects by Connection Block, be connected with crankshaft connecting rod system on Connection Block, the end of crankshaft connecting rod system is connected with decelerator motor 42, outer air blast 41 and the hot wind ignition device 47 of being equipped with of preheating distribution plenum assembly 40, air blast 41 is corresponding with the front end lower openings of preheating distribution plenum assembly 40, water level signal point detection probe 13 is arranged in expansion tank 38, water temperature signal detection probe 35 is arranged on the boiler hot-water exit, the cigarette temperature detector is surveyed signal probe 37 and is arranged on the chimney meatus draught fan exit, crankshaft connecting rod system comprises eccentric wheel 43, eccentric shaft 44 and connecting rod 45, connecting rod 45 is connected with connecting rod base 31 by bearing pin 46, the joint cross-section of preheating distribution plenum assembly 40 and preheating distribution plenum assembly 40 is provided with a plurality of secondary air holes 34, one side of charging interface 33 has sees material window 32, in the present embodiment, the upper design of the opposite side of housing 9 has surface cooler 2, surface cooler 2 upper ends are connected with drainpipe 1, surface cooler 2 belows are designed with low noise axial fan 5, low noise axial fan 5 overcoats have fan radiating assembly 6, fan radiating assembly 6 lower ends are connected with circulating pump 8, are connected with water pipe on circulating pump 8, and water pipe is connected with stalk biomass particle boiler components 3.
biomass granule fuel is stored in fuel hopper 12, the bottom of fuel hopper 12 is equipped with feeding material component 11, feeding material component 11 is the screw feeding assembly, when stalk biomass particle boiler components 3 starts operation, fuel leans on the screw feeding component transfer to the tube connector mouth of pipe, fuel enters in the biomass particle burner 10 that is contained in stalk biomass particle boiler components 3 fronts by gravity by tube connector, this moment, the hot wind ignition device began fuel heating igniting, enter preheating distribution plenum inner chamber when a certain amount of until fuel, be under the driving of power source toward double action fire grate assembly and coupled crankshaft connecting rod system at the dynamo-electric machine of controllable reduction, fuel after lighting is carried out back and forth pushing while after-flame lime-ash also back and forth to be released biomass particle burner 10 and is fallen in grey slag bucket.Also start air feed under slave mode at air blast in the action of double action fire grate assembly, most of wind is by supplying fuel combustion under the main fire grate that supplies the air port to enter the combustion chamber, the hot blast of another part by heating in the interlayer on combustion-chamber assembly both sides and top thereof, a plurality of secondary air holes 34 air feeds that connect with it make biomass particle burner 10 reach best combustion efficiency; The flame that burning produces enters another combustion chamber by a combustion chamber and burns away, and the high-temperature flue gas that burning produces enters through the heat exchanging water pipe heat exchange fire tube that spiral flow deflector is installed, and through expansion chamber, discharges outside body of heater through air-introduced machine 16.
The boiler water supply mouth passes through feed pipe; Circulating pump; Surface cooler; Reach return pipe and be connected with boiler blow-down water, form the hot water cyclesystem of warm braw unit.
Microcomputer control system mainly is comprised of each device drives signal of each monitoring point of detection signal and the work of control warm braw unit;
A: the input detection signal is divided into: be connected on the cigarette temperature detection probe of chimney meatus draught fan outlet as the signal monitoring point of burner ignition procedure, with the start and stop of control point firearm.Be connected on hot water temperature's probe of boiler hot-water outlet, the detection signal of circulating pump start and stop detection signal and boiler overheat warning blowing out is provided; Be located at the blower fan start stop signal of the coolant-temperature gage probe control table cooler in surface cooler; Be located at high water level in the water level detecting probe detection display boiler expansion water tank in expansion tank. middle water level. low water level signal, the blowing out of low water level alarm; The bin full detection probe detects bin full information, and when hopper lacked material, micro computer sent and lacks material warning message and shutdown.
B: device drives is controlled power and is divided into hopper fuel conveying reducing motor, fire grate reducing motor, air blast, igniter, air-introduced machine, circulating pump, centrifugal blower.Above power-equipment is subjected to micro computer setup control that setting program is distinguished, and realizes the stable continuous service of warm braw unit under controllable state.
Claims (2)
1. straw particle warm air blower group, comprise stalk biomass particle boiler components (3), it is characterized in that: fan radiating assembly (6) and hot water circuit assembly (7) are installed on described stalk biomass particle boiler components (3), microcomputerized control assembly (4) is installed on the housing of stalk biomass particle boiler components (3), be fixedly connected with the fuel hopper (12) that has through hole in the housing (9) of stalk biomass particle boiler components (3), fuel hopper (12) is fixedly connected with the inner surface of the upper plate of housing, be stamped the hopper lid on fuel hopper (12), the bottom of fuel hopper (12) is equipped with feeding material component (11), the below of fuel hopper (12) is designed with biomass particle burner (10), biomass particle burner (10) is connected by tube connector with fuel hopper (12), biomass particle burner (10) communicates with fuel hopper (12), biomass particle burner (10) below is designed with grey slag bucket, be designed with the combustion chamber above the crater (16) of biomass particle burner (10), form heat-exchanging water tank between combustor outer casing and housing, top in housing is equipped with expansion tank (38), expansion tank (38) is positioned at fuel hopper (12) one sides, water level signal point detection probe (13) is installed in expansion tank (38), be designed with the heat exchange fire tube in housing, be fixedly connected with deashing assembly (14) in the heat exchange fire tube, be connected with deashing pull bar (36) on deashing assembly (14), deashing pull bar (36) is positioned at hull outside, heat exchange fire tube below is expansion chamber, hull outside is equipped with air-introduced machine (15), air-introduced machine (15) is corresponding with expansion chamber, the exit of air-introduced machine is equipped with the cigarette temperature detector and surveys signal probe (37), the boiler hot-water exit is equipped with water temperature signal detection probe (35), biomass particle burner (10) comprises combustion-chamber assembly (39) and preheating distribution plenum assembly (40), combustion-chamber assembly (39) and preheating distribution plenum assembly (40) welding, combustion-chamber assembly (39) and preheating distribution plenum assembly (40) communicate, the front end of combustion-chamber assembly (39) upwards has crater (16), the Front-end Design of combustion-chamber assembly (39) has fire grate support plate (17), have the hole on combustion-chamber assembly (39) base plate, on combustion-chamber assembly (39) base plate, ash-removing plate assembly (25) is installed, ash-removing plate assembly (25) comprises ash-removing plate (18), have ash-removing plate ash leakage hole (19) on ash-removing plate (18), the rear end of ash-removing plate (18) is fixedly connected with handle (28), be fixedly connected with removable fixed grate (23) in combustion-chamber assembly (39), lay on removable fixed grate (23) and fire grate support plate (17) toward double action fire grate group (21), removable fixed grate (23), the fire grate support plate, form grey chamber toward double action fire grate group (21) and combustion-chamber assembly (39) base plate, fire grate support plate (17), removable fixed grate (23) and all have fire-gate leakage ash hole (20) on double action fire grate group (21), comprise fire grate toward double action fire grate assembly (21), the bottom of the rear end of one of them fire grate is fixedly connected with and connects steel (22), connect steel (22) and be fixedly connected with connecting plate (24), the top of connecting plate (24) is fixedly connected with fire grate, the rear end of connecting plate (24) is fixedly connected with reciprocal lever (26), preheating distribution plenum assembly (40) upward opening, be designed with guide frame (29) in preheating distribution plenum assembly (40), guide frame (29) is divided into guide frame and lower guide frame, charging interface (33) is installed on preheating distribution plenum assembly (40), charging interface (33) is corresponding with the opening on preheating distribution plenum assembly (40), preheating distribution plenum assembly (40) upper design has siphunculus, be stamped inspection cover cap (30) on siphunculus, the reciprocal lever (20) of scraping wings hole (27) and past double action fire grate assembly (21) is housed in preheating distribution plenum assembly (40), the scraping wings assembly comprises scraping wings, have pusher plate hole (27) on scraping wings, the scraping wings rear end is fixedly connected with reciprocal lever (26), the reciprocal lever (26) of scraping wings assembly is arranged in lower guide frame, the rear end of the reciprocal lever that is connected with the scraping wings rear end toward the reciprocal lever of double action fire grate assembly connects by Connection Block, be connected with crankshaft connecting rod system on Connection Block, the end of crankshaft connecting rod system is connected with decelerator motor (42), outer air blast (41) and the hot wind ignition device (47) of being equipped with of preheating distribution plenum assembly (40), air blast (41) is corresponding with the front end lower openings of preheating distribution plenum assembly (40), water level signal point detection probe (13) is arranged in expansion tank (38), water temperature signal detection probe (35) is arranged on the boiler hot-water exit, the cigarette temperature detector is surveyed signal probe (37) and is arranged on the chimney meatus draught fan exit, crankshaft connecting rod system comprises eccentric wheel (43), eccentric shaft (44) and connecting rod (45), connecting rod (45) is connected with connecting rod base (31) by bearing pin (46), the joint cross-section of preheating distribution plenum assembly (40) and preheating distribution plenum assembly (40) is provided with a plurality of secondary air holes (34), one side of charging interface (33) has sees material window (32).
2. straw particle warm air blower group according to claim 1, it is characterized in that: the upper design of the opposite side of described housing (9) has surface cooler (2), surface cooler (2) upper end is connected with drainpipe (1), surface cooler (2) below is designed with low noise axial fan (5), low noise axial fan (5) overcoat has fan radiating assembly (6), fan radiating assembly (6) lower end is connected with circulating pump (8), circulating pump is connected with water pipe on (8), water pipe is connected with stalk biomass particle boiler components (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110154552 CN102230670B (en) | 2011-05-27 | 2011-05-27 | Straw particle warm air blower set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110154552 CN102230670B (en) | 2011-05-27 | 2011-05-27 | Straw particle warm air blower set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102230670A CN102230670A (en) | 2011-11-02 |
| CN102230670B true CN102230670B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110154552 Expired - Fee Related CN102230670B (en) | 2011-05-27 | 2011-05-27 | Straw particle warm air blower set |
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| CN (1) | CN102230670B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235830A (en) * | 2013-06-14 | 2014-12-24 | 山东多乐采暖设备有限责任公司 | Intelligent boiler for burning biomass particles |
| CN106524493A (en) * | 2016-12-28 | 2017-03-22 | 黑龙江省能源环境研究院 | Small domestic biomass fuel heating boiler |
| CN107702088A (en) * | 2017-10-31 | 2018-02-16 | 清华大学 | A kind of heating stove of biomass burning shaped fuel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201269623Y (en) * | 2008-08-30 | 2009-07-08 | 溧阳市正阳燃气设备制造有限公司 | Biomass particle combustion and heat exchange boiler |
| CN202145050U (en) * | 2011-05-27 | 2012-02-15 | 山东多乐采暖设备有限责任公司 | Straw granule heater unit |
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2011
- 2011-05-27 CN CN 201110154552 patent/CN102230670B/en not_active Expired - Fee Related
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