CN102913935A - Furnace-free front storage bin feeding device for biomass power plant - Google Patents
Furnace-free front storage bin feeding device for biomass power plant Download PDFInfo
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- CN102913935A CN102913935A CN2012104087984A CN201210408798A CN102913935A CN 102913935 A CN102913935 A CN 102913935A CN 2012104087984 A CN2012104087984 A CN 2012104087984A CN 201210408798 A CN201210408798 A CN 201210408798A CN 102913935 A CN102913935 A CN 102913935A
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Abstract
The invention relates to a furnace-free front storage bin feeding device for a biomass power plant. The blanking is directly performed by employing a charging belt, a charging belt corresponds to a distributor, a distributor is provided with two discharge openings; the discharge openings of each distributor are butted with a spiral feeding device through a blanking pipe; and four spiral feeding devices respectively corresponds to four feeding holes of a corresponding boiler. The device is easy, convenient and high in adaptability, the transfer link is reduced, the failure rate of the system is reduced, the height of the charging belt is reduced, the bridging and bulking phenomena in the traditional stokehole storage bin are avoided, the floor area is saved, and the cost is saved; and meanwhile, the device has good practical using effect of various biomass fuels, the stability, reliability and the safety of equipment operation in a feeding system are improved, and the device can be widely applied to various boilers for biomass power generation, and are particularly applied to circulating fluidized bed boilers.
Description
Technical field
The present invention relates to a kind of biomass power plant feeding system, specifically a kind of biomass power plant boiler front feeding device.
Background technology
Biomass generation is the renewable energy source item of in recent years focus development construction of China, biomass resource is wide in variety, comprise crop stalk, rice husk, forestry waste, crop seeds shell etc., Developing Biomass power plant is that energy-saving and emission-reduction, comprehensive utilization of resources, building Socialist New and structure adjustment of power source have been made important contribution.
At present, the design majority of CFB boiler stokehold feeding system is provided with the stokehold feed bin in the biomass generation, and feed bin varies, and arranges one-level or deuterostrophies conveyer under feed bin, again by the conveying worm transfer the fuel to hearth combustion.Adopt the stokehold feed bin, put up a bridge in the feed bin, fluffy material phenomenon is of common occurrence, often needs the more material that manually do not stop to disclose, increased generating set operating cost, and had potential safety hazard.
Because the special circumstances of China's national situation, biomass fuel is subjected to seasonal effect, the factor such as have that kind is many, poor fluidity, fuel moisture, caloric value difference are large.When feeding system transhipment link is more, exist transfer the fuel winding, putty, the uneven accident phenomenon of charging more frequent, lead unit and can not steady in a long-term move.
Based on above-mentioned situation, reduce the transhipment link of feeding system, select simple and direct, adjustable, stable stokehold feeding system concerning biomass power plant, to have great importance, also be the key issue that needs to be resolved hurrily of present biomass electric power plant.
Summary of the invention
The technical problem to be solved in the present invention is: for above-mentioned technological deficiency, provide that a kind of system is simple and direct, strong adaptability, adjustable, stable and do not need to arrange the biomass power plant of stokehold feed bin without stokehold feed bin charging gear.
The present invention is that the technical scheme that solves the problems of the technologies described above employing is:
A kind of biomass power plant is without stokehold feed bin charging gear, it is characterized in that: described device does not arrange the stokehold feed bin, mainly adding the one-level helixes feed equipment by the one-level tripper consists of, adopt the direct discharged way of charging belt,, the corresponding tripper of charging belt, at least two discharging openings of a tripper setting, the discharging opening of each tripper docks with a helixes feed equipment by a material blanking tube, and each helixes feed equipment is a material inlet of corresponding boiler respectively; Tripper vertically arranges, and helixes feed equipment docks with a material inlet of boiler, and material blanking tube vertically is set between tripper and helixes feed equipment, is provided with Pneumatic fire door and expansion joint on the material blanking tube.
By technique scheme, every tripper arranges two discharging openings; Four material inlets of four corresponding boilers of helixes feed equipment difference; Fuel is directly transported to the stokehold by two charging belts, and directly falls into respectively two trippers, then falls into respectively each helixes feed equipment by material blanking tube, enters respectively the more corresponding material inlet of boiler from helixes feed equipment.
By technique scheme, described tripper mainly comprises housing, power section, drive part and operating part; Case top is charging aperture, and bottom centre is that the tubular discharging opening is down stretched out in the connect material left and right sides of plate, the plate that connects material; Hull outside arranges power section, comprises tripper drive motors, rotating shaft; Drive part comprises on the rotating disk that is connected in the rotating shaft of tripper drive motors, the rotating disk and connects connecting rod that connecting rod stretches in the housing, and forms toggle with rotating disk; Fork is set in the housing straight down, and the upper end bolt of fork is on the housing and can swing centered by the bolt axle; The terminal bolt of connecting rod promotes fork left and right sides reciprocally swinging under the effect of tripper drive motors on fork; Operating part mainly comprises the tripper scraper plate that is connected to the fork bottom, and center and tubular discharging opening center that the scraper plate lower end is centered close to the plate that connects material are the Y-axis symmetry shape with center, scraper plate lower end; The scraper plate lower surface contacts with the plate that connects material and can be with moving back and forth about fork, and scraper plate swings stroke more than or equal to half of the width of the plate that connects material, thereby the living beings on the plate that will connect material are scraped respectively to the discharging opening of the plate left and right sides that connects material with setpoint frequency.
By technique scheme, described helixes feed equipment mainly is divided into helixes feed equipment spiral section and helixes feed equipment feeding plug tube section; In the helixes feed equipment spiral section, be provided with two screw rods in the housing of each helixes feed equipment spiral section, helixes feed equipment variable frequency drive motors of every screw rod configuration; Helixes feed equipment feeding plug tube section mainly comprises rotatable automatic adjusting cover plate in the helixes feed equipment feeding plug tube piece housing, housing cavity, and with the top seal door of housing and boiler hot air flame zone isolating seal; Helixes feed equipment feeding plug tube piece housing adopts hexahedron, and its left and right sides end face is parallel, and the discharging opening on the housing left side is connected with the boiler material inlet, and the charging aperture of housing right side is communicated with the helixes feed equipment spiral section; The right edge of automatically regulating cover plate is arranged on the right side wall of housing, and cover plate plate face shape matches with housing inner chamber horizontal cross sectional geometry, and can regulate at cover plate and rotate under the driving mechanism effect and regulate the aperture between limit and housing left side wall on the left of the cover plate.
By technique scheme, the top seal door is horizontally set between each sidewall of housing of automatic adjusting cover plate top, and hermatic door forms sealing by graphite packing sub-assembly with housing and boiler hot air flame zone.
By technique scheme, regulating cover plate upper shell outer setting blower.
By technique scheme, the cover plate adjusting driving mechanism of automatically regulating cover plate is pneumatic or the hydraulic-driven governor motion; Perhaps
Automatically the cover plate of regulating cover plate is regulated driving mechanism and is adopted mechanical counterweight balance mechanism, at this moment, in the horizontal cross vertical with the spiral feedstock direction, a heavy hammer mechanism respectively is set on the housing both ends of the surface, and two heavy hammer mechanism pivoting points are on same straight line and can regulate automatically adjusting cover plate aperture by synchronization action; Each heavy hammer mechanism mainly comprises the weight that a connecting rod and connecting rod two ends suspend respectively, and each weight is equal in weight and the suspended substrate stripline equal in length; Each connecting rod is arranged on each housing face by self-lubricating bearing.
By technique scheme, described cover plate is the stainless steel cover plate.
Beneficial effect of the present invention: front feeding device of the present invention does not arrange the stokehold feed bin, adopt the direct blanking of charging belt, reduced the transhipment link, reduced the fault rate of system, traditional ladle addition bin hang-up, fluffy material phenomenon have been avoided, reduce simultaneously the height of charging belt, saved floor space, saved cost.Stokehold feeding system only adopts the one-level tripper to add one-level helixes feed equipment formation, and tripper adopts connecting rod and blade structure, is arranged vertically, and plays the uniform material-distributing action of one-to-two, and putty and energy consumption are not low.Helixes feed equipment adopts the double helix pattern, with variable frequency drive motors, has improved the flexibility of equipment fault maintenance, and when a spiral fault, another root spiral can move the continuation feed; Variable-frequency motor plays when fuel type or change of size, can adapt to the boiler load variation by the regulating electric machine rotating speed; Helixes feed equipment adopts automatic adjustable cap plate structure in the feeding plug tube section, according to the different apertures of coming automatic adjustable cap plates of the kind of biology material fuel, packing, all can form the material plug, realizes that anti-boiler returns the effect of fire, heat insulation, choke.Tube connector is provided with the Pneumatic fire door between tripper and helixes feed equipment, can play the passage of timely cut-out burner hearth and feeding system, avoids the too high flue gas anti-channeling feeding system equipment that ignites that causes of boiler furnace malleation.
In sum, simple and direct, the strong adaptability of front feeding device of the present invention, reduced the transhipment link, reduced the fault rate of system, reduced the height of charging belt, traditional ladle addition bin hang-up, fluffy material phenomenon have not only been avoided, also saved occupation of land, provide cost savings, good to different kind organism matter fuel practical effect simultaneously, improve stability, reliability and the security of the operation of feeding system equipment, can be widely used in different kind organism matter generating boiler, particularly recirculating fluidized bed (CFB) boiler.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the right side view of Fig. 1;
Fig. 3 is the tripper structural representation;
Fig. 4 is the helixes feed equipment structural representation.
Mark in the accompanying drawing:
1. tripper; 2. helixes feed equipment; 3. material blanking tube; 4. fireproof door; 5. expansion joint; 1-1. tripper drive motors; 1-2. tripper connecting rod; 1-3. fork; 1-4. scraper plate; 1-5. tripper housing; 2-1. helixes feed equipment spiral section; 2-2. helixes feed equipment feeding plug tube section; 2-3. automatically regulate cover plate; 2-4. helixes feed equipment variable frequency drive motors.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments:
As shown in Figures 1 and 2: a kind of biomass power plant does not arrange the stokehold feed bin without stokehold feed bin charging gear, mainly includes the material blanking tube 3 of 2 of tripper 1, helixes feed equipment 2, tripper 1 and helixes feed equipments.Adopt the direct discharged way of charging belt, 2, four helixes feed equipments of a corresponding tripper of charging belt 1, one tripper, 1 corresponding two helixes feed equipments 2 are four material inlets of corresponding boiler respectively.Fuel is transported to the stokehold by two charging belts, and directly fall into respectively two trippers 1, then the material blanking tube 3 by 2 of tripper 1 each discharging opening and helixes feed equipments directly falls into four helixes feed equipments 2, enters respectively each material inlet of boiler from helixes feed equipment 2 again.
Be provided with Pneumatic fire door 4 and expansion joint 5 on 2 material blanking tubes 3 of described tripper 1 and helixes feed equipment.When the boiler inlet malleation is too high when causing the flue gas anti-channeling, in time close fireproof door 4 on the material blanking tube, cut off the passage of burner hearth and feeding system, the feeding system equipment of avoiding igniting.
As shown in Figure 3, described tripper 1 mainly comprises housing 1-5, power section, drive part and operating part, housing 1-5 is irregular tubular, the top is charging aperture, bottom centre is that the tubular discharging opening is down stretched out respectively in the connect material left and right sides of plate, the plate that connects material, thus, realize charging, connect material, the function of discharging; The power section of housing 1-5 outer setting comprises tripper drive motors 1-1, rotating shaft; Drive part comprises and connects tripper connecting rod 1-2 on the rotating disk that is connected in the tripper drive motors 1-1 rotating shaft, the rotating disk, tripper connecting rod 1-2 stretches among the housing 1-5, and form toggle with rotating disk, tripper fork 1-3 is set in the housing 1-5 straight down, and the upper end bolt of described fork is on the housing and can swing centered by the bolt axle; The terminal bolt of tripper connecting rod 1-2 promotes fork 1-3 and do reciprocally swinging about under the effect of tripper drive motors 1-1 on fork 1-3; Operating part mainly comprises the tripper scraper plate 1-4 that is connected to fork 1-3 bottom, and center and tubular discharging opening center that the scraper plate lower end is centered close to the plate that connects material are the Y-axis symmetry shape with center, scraper plate lower end; Scraper plate 1-4 lower surface contacts with the plate that connects material and can be with moving back and forth about fork 1-3, scraper plate 1-4 swings stroke more than or equal to half of the width of the plate that connects material, thereby the living beings on the plate that will connect material are scraped respectively to the discharging opening of the plate left and right sides that connects material with certain frequency.Housing parts adopt to increase the connect material structure of plate of bottom, the upstream supplied materials can be temporarily stored in the housing, prepares for forcing sub-material; Blade structure sub-material ability is strong, the life-span is long; Adopt fork to make the mode of reciprocating swing, simple in structure, frequency is high, the life-span is long; But the linkage continuous and steady operation has the characteristics of returning buffering, long, easily maintenance of life-span.
The described scraper plate frequency that swings is set according to type and the fractional dose of the living beings of separating.
As shown in Figure 4, described helixes feed equipment 2 mainly is divided into helixes feed equipment spiral section 2-1 and helixes feed equipment feeding plug tube section 2-2; Among the helixes feed equipment spiral section 2-1, be provided with two screw rods in the housing of each helixes feed equipment spiral section 2-1, helixes feed equipment variable frequency drive motors 2-4 of every screw rod configuration.Because domestic biomass fuel is of a great variety, particle diameter, density variation is very large, same power plant is different at the fuel that different times enters stove, helixes feed equipment of the present invention has adopted two spirals compositions in the housing, and every coiled arrangement has variable-frequency motor to drive, and can adapt to boiler load by the regulating electric machine rotating speed and change.
Helixes feed equipment feeding plug tube section 2-2 mainly comprises rotatable automatic adjusting cover plate 2-3 in the helixes feed equipment feeding plug tube section 2-2 housing, housing cavity, and with the top seal door of housing and boiler hot air flame zone isolating seal.Helixes feed equipment feeding plug tube section 2-2 housing adopts hexahedron, and its left and right sides end face is parallel, and the discharging opening on the housing left side is connected with the boiler material inlet, and the charging aperture of housing right side is communicated with helixes feed equipment spiral section 2-1; The right edge of automatically regulating cover plate 2-3 is arranged on the right side wall of housing, described cover plate is the stainless steel cover plate, cover plate plate face shape matches with housing inner chamber horizontal cross sectional geometry, and can regulate regulating rotation under the driving mechanism effect aperture between cover plate limit, left side and housing left side wall.Hermatic door is horizontally set between each sidewall of housing of automatic adjusting cover plate 2-3 top, and hermatic door forms sealing by graphite packing sub-assembly with housing and boiler hot air flame zone.Regulate aperture between cover plate and housing by the rotation of automatic adjusting cover plate 2-3 in the housing cavity, in helixes feed equipment feeding plug tube section 2-2, form variable passage section, when the biomass fuel kind of passing through changes, the thrust that makes progress of automatic adjusting cover plate 2-3 and cover plate are regulated the downward effect of driving mechanism by biomass fuel, make cover plate reach suitable aperture, make various biomass fuels all can form the material plug of proper density, play preventing that effectively flue gas from returning the effect of altering.When putty occurs, then the top seal door is dismantled, regulate cover plate 2-3 and open, from the top unimpeded of material plug device.Housing parts adopts irregular hexahedron, makes fuel progress into the housing inner chamber under the conveying worm effect and forms the material plug, makes the different cultivars biomass fuel all can form the material plug by cover plate, is difficult for putty, plays preventing that effectively flue gas from returning the effect of altering.The flame that produces during with the hot blast in the boiler and emergency case by the graphite packing sub-assembly in sealing door-plate and the seal groove separates, utilize the comprehensive function of material plug in the material plug device and hermatic door to stop in the housing cavity convection current with outside air, the final effect that realizes fire prevention, heat insulation, choke.When putty occurs, only need the eyelet bolt on the hermatic door is pulled down simultaneously, top blind flange is opened can easily unimpeded.
Automatically the cover plate adjusting driving mechanism of regulating cover plate 2-3 can adopt pneumatic or the hydraulic-driven adjusting, and the piston free end connects executing agency and gets final product; Perhaps also can adopt mechanical counterweight balance mechanism.When adopting counterweight balance mechanism, in the horizontal cross vertical with the spiral feedstock direction, a described heavy hammer mechanism is set respectively on the housing both ends of the surface, two heavy hammer mechanism pivoting points are on same straight line and can regulate the automatic cover plate 2-3 aperture of regulating by synchronization action; Each heavy hammer mechanism mainly comprises the weight that a connecting rod and connecting rod two ends suspend respectively, and each weight is equal in weight and the suspended substrate stripline equal in length; Each connecting rod is arranged on each housing face by self-lubricating bearing.
Further, can regulate cover plate 2-3 upper shell outer setting blower, move flexibly to prevent the upper dust stratification of adjustable cap plate 2-3 or temperatures involved cover plate 2-3.
Operation principle of the present invention is: charging belt directly is delivered to tripper with biomass fuel, charging aperture from tripper falls, the bottom plate that connects material is caught biomass fuel, the tripper scraper plate moves back and forth, living beings on the plate that connects material are scraped respectively to the both sides discharging opening with certain frequency, realize the purpose that inventory that both sides blanking port in a certain time interval falls equates; Every tripper blanking directly falls into two helixes feed equipments by the material blanking tube between tripper and helixes feed equipment, in the helixes feed equipment feeding plug tube section that under the promotion of helixes feed equipment spiral section screw rod, living beings is transported to, biomass fuel is regulated the squeezing action of cover plate and the driving force balance that cover plate is regulated driving mechanism to material plug section, make the adjusting cover plate reach suitable aperture, impel biomass fuel in housing, to form fast the material plug, play and prevent that effectively flue gas from returning the effect of altering, the thrust level of then by screw rod material being filled in pushes the boiler material inlet, enters hearth combustion.When the boiler inlet malleation is too high when causing the flue gas anti-channeling, in time close fireproof door on the material blanking tube, cut off the passage of burner hearth and feeding system, the feeding system equipment of avoiding igniting.
Claims (8)
1. a biomass power plant is without stokehold feed bin charging gear, it is characterized in that: described device does not arrange the stokehold feed bin, mainly adding the one-level helixes feed equipment by the one-level tripper consists of, adopt the direct discharged way of charging belt,, the corresponding tripper of charging belt, at least two discharging openings of a tripper setting, the discharging opening of each tripper docks with a helixes feed equipment by a material blanking tube, and each helixes feed equipment is a material inlet of corresponding boiler respectively; Tripper vertically arranges, and helixes feed equipment docks with a material inlet of boiler, and material blanking tube vertically is set between tripper and helixes feed equipment, is provided with Pneumatic fire door and expansion joint on the material blanking tube.
2. charging gear according to claim 1, it is characterized in that: every tripper arranges two discharging openings; Four material inlets of four corresponding boilers of helixes feed equipment difference; Fuel is directly transported to the stokehold by two charging belts, and directly falls into respectively two trippers, then falls into respectively each helixes feed equipment by material blanking tube, enters respectively the more corresponding material inlet of boiler from helixes feed equipment.
3. charging gear according to claim 1 and 2, it is characterized in that: described tripper mainly comprises housing, power section, drive part and operating part; Case top is charging aperture, and bottom centre is that the tubular discharging opening is down stretched out in the connect material left and right sides of plate, the plate that connects material; Hull outside arranges power section, comprises tripper drive motors, rotating shaft; Drive part comprises on the rotating disk that is connected in the rotating shaft of tripper drive motors, the rotating disk and connects connecting rod that connecting rod stretches in the housing, and forms toggle with rotating disk; Fork is set in the housing straight down, and the upper end bolt of fork is on the housing and can swing centered by the bolt axle; The terminal bolt of connecting rod promotes fork left and right sides reciprocally swinging under the effect of tripper drive motors on fork; Operating part mainly comprises the tripper scraper plate that is connected to the fork bottom, and center and tubular discharging opening center that the scraper plate lower end is centered close to the plate that connects material are the Y-axis symmetry shape with center, scraper plate lower end; The scraper plate lower surface contacts with the plate that connects material and can be with moving back and forth about fork, and scraper plate swings stroke more than or equal to half of the width of the plate that connects material, thereby the living beings on the plate that will connect material are scraped respectively to the discharging opening of the plate left and right sides that connects material with setpoint frequency.
4. charging gear according to claim 3, it is characterized in that: described helixes feed equipment mainly is divided into helixes feed equipment spiral section and helixes feed equipment feeding plug tube section; In the helixes feed equipment spiral section, be provided with two screw rods in the housing of each helixes feed equipment spiral section, helixes feed equipment variable frequency drive motors of every screw rod configuration; Helixes feed equipment feeding plug tube section mainly comprises rotatable automatic adjusting cover plate in the helixes feed equipment feeding plug tube piece housing, housing cavity, and with the top seal door of housing and boiler hot air flame zone isolating seal; Helixes feed equipment feeding plug tube piece housing adopts hexahedron, and its left and right sides end face is parallel, and the discharging opening on the housing left side is connected with the boiler material inlet, and the charging aperture of housing right side is communicated with the helixes feed equipment spiral section; The right edge of automatically regulating cover plate is arranged on the right side wall of housing, and cover plate plate face shape matches with housing inner chamber horizontal cross sectional geometry, and can regulate at cover plate and rotate under the driving mechanism effect and regulate the aperture between limit and housing left side wall on the left of the cover plate.
5. charging gear according to claim 4 is characterized in that: the top seal door is horizontally set between each sidewall of housing of automatic adjusting cover plate top, and hermatic door forms housing by graphite packing sub-assembly and seals with the boiler hot air flame zone.
6. charging gear according to claim 5 is characterized in that: regulating cover plate upper shell outer setting blower.
7. described charging gear one of according to claim 4-6 is characterized in that: it is pneumatic or the hydraulic-driven governor motion that the cover plate of automatically regulating cover plate is regulated driving mechanism; The cover plate of perhaps automatically regulating cover plate is regulated driving mechanism and is adopted mechanical counterweight balance mechanism, at this moment, in the horizontal cross vertical with the spiral feedstock direction, a heavy hammer mechanism respectively is set on the housing both ends of the surface, and two heavy hammer mechanism pivoting points are on same straight line and can regulate automatically adjusting cover plate aperture by synchronization action; Each heavy hammer mechanism mainly comprises the weight that a connecting rod and connecting rod two ends suspend respectively, and each weight is equal in weight and the suspended substrate stripline equal in length; Each connecting rod is arranged on each housing face by self-lubricating bearing.
8. charging gear according to claim 7, it is characterized in that: described cover plate is the stainless steel cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210408798.4A CN102913935B (en) | 2012-10-24 | 2012-10-24 | Furnace-free front storage bin feeding device for biomass power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210408798.4A CN102913935B (en) | 2012-10-24 | 2012-10-24 | Furnace-free front storage bin feeding device for biomass power plant |
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| CN102913935A true CN102913935A (en) | 2013-02-06 |
| CN102913935B CN102913935B (en) | 2015-06-17 |
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| CN201210408798.4A Expired - Fee Related CN102913935B (en) | 2012-10-24 | 2012-10-24 | Furnace-free front storage bin feeding device for biomass power plant |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256592A (en) * | 2013-05-11 | 2013-08-21 | 费县上源热电有限责任公司 | Reciprocating feeding device of circulating fluidized bed boiler burning biomass |
| CN106765330A (en) * | 2016-11-29 | 2017-05-31 | 安徽昌讯光电设备有限公司 | A kind of automatic charcoal adding device of boiler |
| CN107990347A (en) * | 2017-12-29 | 2018-05-04 | 贵州大学 | A kind of biomass shaped fuel boiler is fed adjustable blocking device |
| CN110589519A (en) * | 2019-08-29 | 2019-12-20 | 张家港市鑫港机械制造有限公司 | Stokehole feeding system of grate furnace |
| CN111691482A (en) * | 2020-06-09 | 2020-09-22 | 中建路桥集团有限公司 | Equipment is used in road bridge construction convenient to separate area is filled planting soil |
| CN116062498A (en) * | 2023-03-10 | 2023-05-05 | 黑龙江京禾农机装备有限公司 | Biomass fuel conveyor |
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| CN106765330A (en) * | 2016-11-29 | 2017-05-31 | 安徽昌讯光电设备有限公司 | A kind of automatic charcoal adding device of boiler |
| CN107990347A (en) * | 2017-12-29 | 2018-05-04 | 贵州大学 | A kind of biomass shaped fuel boiler is fed adjustable blocking device |
| CN110589519A (en) * | 2019-08-29 | 2019-12-20 | 张家港市鑫港机械制造有限公司 | Stokehole feeding system of grate furnace |
| CN111691482A (en) * | 2020-06-09 | 2020-09-22 | 中建路桥集团有限公司 | Equipment is used in road bridge construction convenient to separate area is filled planting soil |
| CN116062498A (en) * | 2023-03-10 | 2023-05-05 | 黑龙江京禾农机装备有限公司 | Biomass fuel conveyor |
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|---|---|
| CN102913935B (en) | 2015-06-17 |
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