CN113790462B - Biomass powder fuel storage and supply device - Google Patents
Biomass powder fuel storage and supply device Download PDFInfo
- Publication number
- CN113790462B CN113790462B CN202111052004.0A CN202111052004A CN113790462B CN 113790462 B CN113790462 B CN 113790462B CN 202111052004 A CN202111052004 A CN 202111052004A CN 113790462 B CN113790462 B CN 113790462B
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- Prior art keywords
- bin
- powder fuel
- biomass powder
- supply device
- weighing
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- 239000000843 powder Substances 0.000 title claims abstract description 91
- 239000002028 Biomass Substances 0.000 title claims abstract description 68
- 239000000446 fuel Substances 0.000 title claims abstract description 66
- 238000005303 weighing Methods 0.000 claims abstract description 51
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 28
- 238000003756 stirring Methods 0.000 claims description 11
- 230000007423 decrease Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/68—Large containers characterised by means facilitating filling or emptying preventing bridge formation using rotating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/46—Devices for emptying otherwise than from the top using screw conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention discloses a biomass powder fuel storage and supply device, which comprises a storage bin, wherein the storage bin is used for storing biomass powder fuel; the weighing bin is provided with a feeding hole and a discharging hole, the feeding hole is connected with the bin, a spiral feeder is arranged in the weighing bin, and the spiral feeder is arranged along the direction from the feeding hole to the discharging hole; the air-powder mixer is connected with the discharge port of the weighing bin. Therefore, the biomass powder fuel storage and supply device provided by the embodiment of the invention has the advantages of difficult arching and blockage and convenience for stably conveying the biomass powder fuel.
Description
Technical Field
The invention relates to the technical field of biomass powder boilers, in particular to a biomass powder fuel storage and supply device.
Background
The biomass powder fuel has the physical characteristics of small density, large length-diameter ratio, large compression ratio, poor fluidity and the like, and the biomass particle size adopted by the biomass powder boiler is 0.1-2.0 mm. Therefore, the storage and supply of biomass pulverized fuel is critical in biomass pulverized fuel boiler systems. In the related art, as the biomass has small density, light texture and rich fibers, when the particle size of biomass powder is gradually increased from 80 meshes to more than 20 meshes, the fluidity is poor, and the powder is easy to bridge, arch and the like in a bin, so that the boiler burns, fluctuation is generated due to unstable feeding, and even the condition of fire failure occurs.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent.
Therefore, the embodiment of the invention provides a biomass powder fuel storage and supply device.
According to the embodiment of the invention, the biomass powder fuel storage and supply device comprises:
The storage bin is used for storing biomass powder fuel;
The weighing bin is provided with a feeding hole and a discharging hole, the feeding hole is connected with the bin, a spiral feeder is arranged in the weighing bin, and the spiral feeder is arranged along the direction from the feeding hole to the discharging hole;
The air-powder mixer is connected with the discharge port of the weighing bin.
Therefore, the biomass powder fuel storage and supply device provided by the embodiment of the invention has the advantages of difficult arching and blockage and convenience for stably conveying the biomass powder fuel.
In some embodiments, the bin comprises a bin body and a distributing pipe, wherein one end of the distributing pipe is connected with the lower end of the bin body, and the other end of the distributing pipe is connected with the feeding hole.
In some embodiments, the number of the material dividing pipes and the material inlets are two and are in one-to-one correspondence, and the two material dividing pipes are arranged at intervals along the radial direction of the stock bin body.
The biomass powder fuel storage and supply device provided by the embodiment of the invention further comprises a star-shaped rotary valve, and the material dividing pipe is connected with the material inlet through the star-shaped rotary valve.
In some embodiments, the screw feeder comprises
The rotary shaft is arranged in the weighing bin along the direction from the feeding hole to the discharging hole;
a blade which is provided on the circumferential side of the rotation shaft in a spiral shape;
the driving piece is connected with the rotating shaft to drive the rotating shaft to rotate.
In some embodiments, the weighing bin comprises a weighing bin body, a straight tube section and an inclined tube section which are connected in sequence, the screw feeder is positioned in the weighing bin body and the straight tube section, and the inclined tube section is connected with the wind-powder mixer.
In some embodiments, the clearance between the outer edges of the blades located within the straight tube segment and the inner wall of the straight tube segment is 1-2 mm.
In some embodiments, the screw feeder further comprises a deflector plate connected to the swivel shaft and located above the blade.
In some embodiments, the plurality of the shifting sheets are arranged at intervals along the circumferential direction of the rotating shaft, and/or the plurality of the shifting sheets are arranged at intervals along the length direction of the rotating shaft.
In some embodiments, the drive is a motor.
Drawings
Fig. 1 is a schematic diagram of a biomass pulverized fuel storage and supply device according to an embodiment of the invention.
Fig. 2 is a schematic diagram of a biomass pulverized fuel storage and supply device according to an embodiment of the invention.
Fig. 3 is a schematic view of a screw feeder according to an embodiment of the invention.
Fig. 4 is a schematic diagram of a top view of a weigh bin according to an embodiment of the invention.
Fig. 5 is a schematic view of a wind-powder mixer according to an embodiment of the invention.
Reference numerals:
a biomass powder fuel storage and supply device 100;
The device comprises a storage bin 1, a body 11, a material dividing pipe 12, a first material dividing pipe 121 and a second material dividing pipe 122;
the weighing bin 2, the heavy bin body 21, the straight pipe section 22, the inclined pipe section 23, the feeding hole 24, the first feeding hole 241 and the second feeding hole 242;
And a discharge port 25, a screw feeder 26, a rotary shaft 261, a vane 262, a driving member 263, and a deflector 264;
a wind-powder mixer 3, a venturi tube 31.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
A biomass powder fuel storage and supply device 100 according to an embodiment of the invention is described below with reference to the accompanying drawings.
As shown in fig. 1 to 5, a biomass powder fuel storage and supply device 100 according to an embodiment of the invention includes a bin 1, a weighing bin 2, and a wind powder mixer 3.
The storage bin 1 is used for storing biomass powder fuel. The weighing bin 2 is provided with a feed inlet 24 and a discharge outlet 25, and the feed inlet 24 is connected with the bin 1. A screw feeder 26 is arranged in the weighing bin 2, and the screw feeder 26 is arranged along the direction from the feed inlet 24 to the discharge outlet 25. The air-powder mixer 3 is connected with a discharge hole 25 of the weighing bin 2.
Specifically, the bin 1 is located above the weighing bin 2, and the bottom of the bin 1 is provided with a bin outlet which is connected with the feed inlet 24, so that biomass powder fuel in the bin 1 can enter the weighing bin 2 from the feed inlet 24. The inlet 24 and the outlet 25 are disposed opposite to each other in a vertical direction, and the inlet 24 is disposed above the outlet 25. And the spiral feeder 26 is arranged in the weighing bin 2, so that the biomass powder fuel in the weighing bin 2 is convenient to move to the discharge port 25 during conveying of the spiral feeder 26. From this, the biomass powder fuel gets into wind powder blender 3 and export wind powder blender 3 after mixing with the air, and then make biomass powder fuel be convenient for burn.
According to the biomass powder fuel storage and supply device 100 provided by the embodiment of the invention, the bin 1 and the weighing bin 2 are arranged, and the weighing bin 2 can weigh cargoes in the bin, so that the bin 1 can send biomass powder fuel with preset weight into the weighing bin 2. The spiral feeder 26 is arranged in the weighing bin 2, the preset weight of the biomass powder fuel is the conveying weight suitable for the spiral feeder 26, and the spiral feeder 26 is arranged along the direction from the feed inlet 24 to the discharge outlet 25, so that the biomass powder fuel with the preset weight in the bin 1 can be stably conveyed to the discharge outlet 25 by the spiral feeder 26 after entering the feed inlet 24. Therefore, the biomass powder fuel can be prevented from arching and blocking the weighing bin 2, and the biomass powder fuel can be conveniently mixed with air in the air-powder mixer 3 and then can be stably output from the air-powder mixer 3.
Therefore, the biomass powder fuel storage and supply device 100 according to the embodiment of the invention has advantages of being not easily arched, blocked, and convenient for stably transporting biomass powder fuel.
As shown in fig. 1 and 2, in some embodiments, the cartridge 1 includes a cartridge body 11 and a dividing tube 12. One end of the material dividing pipe 12 is connected with the lower end of the stock bin body 11, and the other end is connected with the material inlet 24. Specifically, the bin body 11 is located above the distributing pipe 12, the upper end of the distributing pipe 12 is connected with the lower end of the bin body 11, and the lower end of the distributing pipe 12 is connected with the feeding hole 24. Therefore, biomass powder fuel in the bin body 11 conveniently enters the material dividing pipe 12 from top to bottom under the action of gravity, and enters the weighing bin 2 through the feed inlet 24.
As shown in fig. 1 and 4, in some embodiments, the two material dividing pipes 12 and the material inlets 24 are respectively in one-to-one correspondence, so that the biomass powder fuel in the bin 1 can be divided into the weighing bin 2, thereby preventing the biomass powder fuel from blocking the bin 1 or the weighing bin 2. The two distributing pipes 12 are arranged at intervals in the radial direction of the silo body 11, specifically, the two distributing pipes 12 are arranged at intervals in the horizontal direction of the silo body 11. For example, the dividing pipe 12 includes a first dividing pipe 121 and a second dividing pipe 122, the first dividing pipe 121 and the second dividing pipe 122 being disposed opposite in the left-right direction, the first dividing pipe 121 being located on the right side of the second dividing pipe 122. The feed inlet 24 includes a first feed inlet 241 and a second feed inlet 242, the first feed inlet 241 and the second feed inlet 242 are disposed opposite to each other along the left-right direction, and the first feed inlet 241 is located on the right side of the second feed inlet 242. The first material dividing pipe 121 is connected with the first material inlet 241, so that the biomass powder fuel coming out of the first material dividing pipe 121 passes through the first material inlet 241 and enters the weighing bin 2; the second feed divider 122 is connected with the second feed inlet 242, so that the biomass powder fuel coming out of the second feed divider 122 passes through the second feed inlet 242 and enters the weighing bin 2, and further the biomass powder fuel is not easy to block the bin 1 or the weighing bin 2.
In some embodiments, a star-shaped rotary valve is also included, through which the distribution pipe 12 is connected to the inlet 24. Specifically, when the star-shaped rotary valve is started, biomass powder fuel in the material distributing pipe 12 can enter the weighing bin 2 through the material inlet 24; when the star-shaped rotary valve is stopped, the biomass powder fuel in the material distributing pipe 12 does not enter the weighing bin 2. Therefore, when the biomass powder fuel in the weighing bin 2 is smaller than the preset weight, the star-shaped rotary valve is started; when the biomass powder fuel in the weighing bin 2 is larger than the preset weight, the star-shaped rotary valve stops. The weight of the biomass powder fuel in the weighing bin 2 can be the preset weight, so that the screw feeder 26 can be transported more stably and the air-powder mixer 3 can be output more stably. For example, the preset weight of the biomass powder fuel in the weigh bin 2 is 500kg or more and 800kg or less, which is a weight for facilitating transportation by the screw feeder 26. When the biomass powder fuel in the weighing bin 2 is less than 500kg, starting the star-shaped rotary valve; when the biomass powder fuel in the weighing bin 2 is more than 800kg, the star-shaped rotary valve stops.
As shown in fig. 3, in some embodiments, the screw feeder 26 includes a rotary shaft 261, blades 262, and a drive 263.
The rotation shaft 261 is disposed in the weighing compartment 2 in a direction from the inlet 24 to the outlet 25, and the blades 262 are spirally disposed on a peripheral side of the rotation shaft 261. For example, the rotation shaft 261 extends in the up-down direction, the rotation shaft 261 is arranged in the up-down direction in the weighing compartment 2, and the blades 262 are spirally arranged in the up-down direction on the circumferential side of the rotation shaft 261.
The driving member 263 is coupled to the rotation shaft 261 to drive the rotation shaft 261 to rotate. Specifically, the driving member drives 263 to rotate the rotating shaft 261, so as to drive the spiral vane 262 to rotate, and thus the vane 262 can drive the biomass powder fuel to move from the inlet 24 to the outlet 25. For example, the driving member drives 263 to rotate the rotating shaft 261, so that the blade 262 drives the biomass powder fuel to move from top to bottom.
As shown in fig. 1, in some embodiments, the driving member 263 is a motor that is connected to the rotation shaft 261 through a decelerator to drive the rotation shaft 261 to rotate.
As shown in fig. 1 and 2, in some embodiments, the weigh bin 2 includes a weigh bin body 21, a straight tube segment 22, and a sloped tube segment 23 connected in sequence. Specifically, the weighing bin 2 comprises a weighing bin body 21, a straight pipe section 22 and an inclined pipe section 23 which are sequentially connected from top to bottom.
The screw feeder 26 is located in the weigh bin body 21 and the straight pipe section 22, and the weigh bin body 21 and the straight pipe section 22 are both extended in the up-down direction, so that the screw feeder 26 is conveniently installed in the weigh bin body 21 and the straight pipe section 22. And the diameter of the straight pipe section 22 decreases in the direction (from top to bottom) adjacent to the inclined pipe section 23, and the diameter of the blades 262 of the screw feeder 26 decreases in the direction (from top to bottom) adjacent to the inclined pipe section 23, so that the biomass powder fuel can be prevented from arching, clogging the straight pipe section 22, and the screw feeder 26 can be prevented from idling.
The inclined tube section 23 is connected with the wind-powder mixer 3, and the diameter of the inclined tube section 23 is reduced along the direction close to the wind-powder mixer 3, so that biomass powder fuel can conveniently enter the wind-powder mixer 3. Specifically, the inclined tube section 23 is inclined to prevent the biomass powder fuel from accumulating in the up-down direction. The wind-powder mixer 3 comprises a venturi pipe 31, the wind-powder mixer 3 draws the biomass powder fuel in the inclined pipe section 23 into the wind-powder mixer 3 through negative pressure generated by the high-speed jet air flow passing through the venturi pipe 31, and outputs the wind-powder mixer 3 after being mixed with the high-speed jet air flow passing through the venturi pipe 31.
As shown in FIG. 2, in some embodiments, the clearance between the outer edges of the blades 262 located within the straight tube segment 22 and the inner wall of the straight tube segment 22 is 1-2 mm. Thus, when the high-speed jet air flow passes through the venturi tube 31 of the wind-powder mixer 3, the negative pressure generated by the wind-powder mixer 3 through the venturi structure can charge the gap between the outer edges of the inclined tube section 23 and the blades 262 and the inner wall of the straight tube section 22. That is, the negative pressure generated by the wind-powder mixer 3 through the venturi structure can also provide a negative pressure environment for the gap between the outer edges of the inclined tube section 23 and the blades 262 and the inner wall of the straight tube section 22, so that the gap between the outer edges of the blades 262 and the inner wall of the straight tube section 22 and the biomass powder fuel in the inclined tube section 23 can be conveniently moved to the wind-powder mixer 3.
As shown in fig. 3, in some embodiments, the screw feeder 26 further includes a deflector tab 264, the deflector tab 264 being connected to the swivel shaft 261 and located above the vane 262. For example, the stirring sheet 264 is located in the weighing bin body 21, so that the stirring sheet 264 always stirs biomass powder fuel in the weighing bin body 21 when the rotating shaft 261 rotates, thereby preventing the biomass powder fuel from bridging and arching, and further preventing the biomass powder fuel from blocking the weighing bin 2.
Alternatively, the pulling tab 264 is provided obliquely on the rotation shaft 261.
As shown in fig. 3, in some embodiments, the plurality of toggle tabs 264 are a plurality of, the plurality of toggle tabs 264 are spaced apart along the circumference of the swivel shaft 261, and/or the plurality of toggle tabs are spaced apart along the length of the swivel shaft 261. The plurality of kick-out tabs 264 are arranged at intervals along the circumferential direction of the rotation shaft 261, and/or the plurality of kick-out tabs are arranged at intervals along the length direction of the rotation shaft 261, including: a. the plurality of deflector plates 264 are arranged at intervals along the circumferential direction of the rotation shaft 261, so that bridging and arching of the powder fuel are better prevented in the circumferential direction of the rotation shaft 261; b. the plurality of stirring materials are arranged at intervals along the length direction of the rotating shaft 261, so that bridging and arching of the powder fuel are better prevented in the length direction of the rotating shaft 261; the plurality of stirring pieces 264 are arranged at intervals along the circumferential direction of the rotation shaft 261, and the plurality of stirring pieces are arranged at intervals along the length direction of the rotation shaft 261, so that bridging and arching of the powder fuel are better prevented in the axial direction and the length direction of the rotation shaft 261.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (4)
1. A biomass powder fuel storage and supply device, which is characterized by comprising:
The storage bin is used for storing biomass powder fuel;
The weighing bin is provided with a feeding hole and a discharging hole, the feeding hole is connected with the bin, a spiral feeder is arranged in the weighing bin, and the spiral feeder is arranged along the direction from the feeding hole to the discharging hole;
the air-powder mixer is connected with the discharge port of the weighing bin;
the screw feeder comprises
The rotary shaft is arranged in the weighing bin along the direction from the feeding hole to the discharging hole;
a blade which is provided on the circumferential side of the rotation shaft in a spiral shape;
The driving piece is connected with the rotating shaft to drive the rotating shaft to rotate;
the spiral feeder further comprises a stirring sheet, wherein the stirring sheet is connected with the rotating shaft and is positioned above the blade;
The weighing bin comprises a weighing bin body, a straight pipe section and an inclined pipe section which are connected in sequence, the spiral feeder is positioned in the weighing bin body and the straight pipe section, and the inclined pipe section is connected with the air-powder mixer;
The diameter of the blades of the screw feeder decreases in a direction approaching the inclined tube section;
The feed bin comprises a feed bin body and a material dividing pipe, one end of the material dividing pipe is connected with the lower end of the feed bin body, and the other end of the material dividing pipe is connected with the feed inlet;
The feed dividing pipes and the feed inlets are two and correspond to each other one by one, and the two feed dividing pipes are arranged at intervals along the radial direction of the stock bin body;
The clearance between the outer edge of the blade positioned in the straight pipe section and the inner wall of the straight pipe section is 1-2 mm.
2. The biomass powder fuel storage and supply device according to claim 1, further comprising a star-shaped rotary valve, wherein the material dividing pipe is connected with the material inlet through the star-shaped rotary valve.
3. The biomass powder fuel storage and supply device according to claim 1, wherein the number of the stirring sheets is plural, the stirring sheets are arranged at intervals along the circumferential direction of the rotating shaft, and/or the stirring sheets are arranged at intervals along the length direction of the rotating shaft.
4. The biomass powder fuel storage and supply device according to claim 1, wherein the driving member is a motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111052004.0A CN113790462B (en) | 2021-09-08 | 2021-09-08 | Biomass powder fuel storage and supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111052004.0A CN113790462B (en) | 2021-09-08 | 2021-09-08 | Biomass powder fuel storage and supply device |
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| Publication Number | Publication Date |
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| CN113790462A CN113790462A (en) | 2021-12-14 |
| CN113790462B true CN113790462B (en) | 2024-06-18 |
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| CN202111052004.0A Active CN113790462B (en) | 2021-09-08 | 2021-09-08 | Biomass powder fuel storage and supply device |
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| CN114963223A (en) * | 2022-05-19 | 2022-08-30 | 西安热工研究院有限公司 | Anti-blocking and deep-crushing biomass particle storage feeding system |
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| CN106185368A (en) * | 2016-08-29 | 2016-12-07 | 江苏双良锅炉有限公司 | A kind of coal dust feeding device |
| CN207514960U (en) * | 2017-11-30 | 2018-06-19 | 中煤科工清洁能源股份有限公司 | A kind of coal powder storage and supply system |
| CN213058514U (en) * | 2020-05-30 | 2021-04-27 | 江苏麒祥高新材料有限公司 | Powder arch breaking and feeding device |
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| CN113790462A (en) | 2021-12-14 |
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