CN106185368A - A kind of coal dust feeding device - Google Patents
A kind of coal dust feeding device Download PDFInfo
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- CN106185368A CN106185368A CN201610745272.3A CN201610745272A CN106185368A CN 106185368 A CN106185368 A CN 106185368A CN 201610745272 A CN201610745272 A CN 201610745272A CN 106185368 A CN106185368 A CN 106185368A
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- pipeline section
- coal dust
- feeding device
- horizontal pipeline
- dust feeding
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Abstract
The present invention relates to a kind of coal dust feeding device, it includes the feed bin (6) being sequentially arranged from top to bottom, rotator type speed governing dispenser (1) and swinging airduct (5), it is connected by entrance sleeve (11) between described rotator type speed governing dispenser (1) top with feed bin (6) bottom, described rotator type speed governing dispenser (1) bottom is connected by discharge connection (12) with between swinging airduct (5), described swinging airduct (5) includes the first horizontal pipeline section (5.1), second horizontal pipeline section (5.2) and connecting bending pipeline section (5.3), described first horizontal pipeline section (5.1) one end is connected with roots blower (4), the other end is internally provided with Venturi (3), described discharge connection (12) lower end is connected with Venturi (3) by material blanking tube (2).One coal dust feeding device of the present invention, it may ensure that coal dust neither blocks, again can continuously, stable material-supplying, according to boiler load trend regulate powder-feeding amount.
Description
Technical field
The present invention relates to a kind of coal dust feeding device, be particularly well-suited to efficient pulverized coal industrial.
Background technology
German Industrial pulverized-coal fired boiler, with its safety, the feature of environmental protection (exhaust emissions and generating plant pulverized coal boiler, gas fired-boiler phase
When), advanced (automatic measuring and controlling, teletransmission manipulation, unmanned), economy (efficiency of combustion more than 98%, boiler thermal output up to
More than 92%) can be, the succedaneum of oil and gas as clean energy resource.The small and medium-sized industrial coal powder boilers of China uses for reference Germany
The technology of industrial coal powder boiler and theory, last 10 years, has in the technology such as coal dust tower of key core, feed, combustion system
Broken through.
Chinese patent literature CN201458346U discloses a kind of pulse-free coal powder supply device, can effectively solve coal dust and exist
The phenomenon of compensation is piled up, blocks and carried to coal chute in road.But also bring another one problem, due to helical blade
And cannot avoid between duff pipe there is gap, owing to spiral transferring tube cell bottom is provided with coal dust mixing injector, at pulverized coal flow
Threading a pipe interior formation negative pressure, it is difficult to control charging rate, excess coal dust is poured into burner hearth and is formed detonation.
Summary of the invention
The technical problem to be solved is to provide a kind of coal dust feeding device for above-mentioned prior art, and it is permissible
Ensure coal dust neither block, again can continuously, stable material-supplying, according to boiler load trend regulation powder-feeding amount.
The present invention solves the technical scheme that the problems referred to above are used: a kind of coal dust feeding device, it includes from top to bottom
At the bottom of feed bin, rotator type speed governing dispenser and the swinging airduct being sequentially arranged, described rotator type speed governing dispenser top and feed bin
It is connected by entrance sleeve between portion, bottom described rotator type speed governing dispenser and between swinging airduct, passes through discharge connection
Being connected, described swinging airduct includes the first horizontal pipeline section, the second horizontal pipeline section and connecting bending pipeline section, described first horizontal tube
Section and the second horizontal pipeline section are arranged in parallel up and down, and described connecting bending pipeline section is connected to the first horizontal pipeline section right-hand member and the second horizontal tube
Between section right-hand member, described first horizontal pipeline section left end is provided with roots blower, is provided with venturi in described first horizontal pipeline section
Device, described discharge connection lower end is connected with Venturi by material blanking tube.
Described coal dust feeding device also includes spiral conveying pipeline, described spiral conveying pipeline be provided with near the upside of one end into
Material mouth, is provided with discharging opening near the downside of the other end, and described bin bottom is connected with charging aperture, described discharging opening and import
Adapter is connected.
Described rotator type speed governing dispenser includes that circular rotatable parts, described circular rotatable part centre are provided with centre
Axle, described circular rotatable parts are disposed with multiple annular storage cavity, described entrance sleeve and discharge connection from inside to outside
All it is connected with multiple annular storage cavitys, in each annular storage cavity, is all separated into multiple storing lattice by multiple dividing plates.
Described material blanking tube top half is vertical section, and the latter half is tilting section, the tilting section of described material blanking tube and level
The angle of line is 40 ° ~ 80 °.
Being provided with blowing pipe on the downside of described spiral conveying pipeline, the position of described blowing pipe is corresponding with the position of charging aperture.
Being provided with respiratory organ on the upside of described spiral conveying pipeline, the position of described respiratory organ is corresponding with the position of discharging opening.
Compared with prior art, it is an advantage of the current invention that:
1, coal dust blanking is smooth and easy, stable, without blocking, without piling up；
2, coal dust feed is stable, controlled, will not cause detonation because pouring into burner for a large amount of coal dust of local decompression in powder pipeline；
3, powder-feeding amount can be regulated according to boiler load, and can shift to an earlier date and change to powder trend according to load variations trend.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention a kind of coal dust feeding device.
Fig. 2 is the structural representation of Fig. 1 transfer minor speed governing dispenser.
Fig. 3 is the top view of Fig. 2.
Wherein:
Rotator type speed governing dispenser 1
Material blanking tube 2
Venturi 3
Roots blower 4
Swinging airduct 5
First horizontal pipeline section 5.1
Second horizontal pipeline section 5.2
Connecting bending pipeline section 5.3
Feed bin 6
Spiral conveying pipeline 7
Blowing pipe 8
Respiratory organ 9
Dividing plate 10
Entrance sleeve 11
Discharge connection 12
Central shaft 13
Storing lattice 14
Circular rotatable parts 15
Annular storage cavity 16.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Fig. 1 ~ Fig. 3, a kind of coal dust feeding device in the present embodiment, it includes the material being sequentially arranged from top to bottom
Storehouse 6, rotator type speed governing dispenser 1 and swinging airduct 5, bottom described rotator type speed governing dispenser 1 top and feed bin 6 between logical
Cross entrance sleeve 11 to be connected, bottom described rotator type speed governing dispenser 1, pass through discharge connection 12 phase with between swinging airduct 5
Connecting, described swinging airduct 5 includes first horizontal pipeline section the 5.1, second horizontal pipeline section 5.2 and connecting bending pipeline section 5.3, described the
One horizontal pipeline section 5.1 and the second horizontal pipeline section about 5.2 are arranged in parallel, and described connecting bending pipeline section 5.3 is connected to the first horizontal tube
Between section 5.1 right-hand members and the second horizontal pipeline section 5.2 right-hand member, described first horizontal pipeline section 5.1 left end is provided with roots blower 4, institute
Being provided with Venturi 3 in stating the first horizontal pipeline section 5.1, described discharge connection 12 lower end is filled with venturi by material blanking tube 2
Putting 3 to be connected, roots blower wind out forms high-speed jet through Venturi, is formed after carrying the coal dust that material blanking tube falls
Wind powder mixture, enters swinging airduct, passes through at wind powder air-flow after 180 ° turn to reduction of speed, current-sharing in swinging airduct
Conveyance conduit enters boiler-burner；
Described rotator type speed governing dispenser 1 includes that circular rotatable parts 15, described circular rotatable parts 15 are provided centrally with centre
Axle 13, described circular rotatable parts 15 are disposed with multiple annular storage cavity 16, described entrance sleeve 11 He from inside to outside
Discharge connection 12 is all connected with multiple annular storage cavitys 16, is all separated into by multiple dividing plates 10 in each annular storage cavity 16
Multiple storing lattices 14, coal dust is entered in the storing lattice of the multiple annular storage cavitys on circular rotatable parts by entrance sleeve,
Coal dust is sent to the discharge connection of another location by circular rotatable parts, and coal dust falls due to deadweight, enters material blanking tube；
Described material blanking tube 2 top half is vertical section, and the latter half is tilting section, the tilting section of described material blanking tube 2 and horizontal line
Angle be 40 ° ~ 80 °, this angle is more than angle of repose of coal dust；
The coal dust of material blanking tube 2 lower port falls due to deadweight, and the Venturi 3 of its underpart produces ejector action simultaneously, and fall ash
Producing negative pressure acceleration coal dust in bucket to flow downward, the wind that coal dust carries with roots blower forms wind powder mixture through literary composition after mixing
Current-sharing through swinging airduct 5 after device 3 in mound, slow down after enter boiler；Swinging airduct 5 is 180 ° of bend pipes, and it is permissible
Wind powder mixture after buffering Venturi 3, prevents wind powder mixture from entering boiler with too high speed；
Described coal dust feeding device also includes that spiral conveying pipeline 7, described spiral conveying pipeline 7 are provided with charging near the upside of one end
Mouthful, the downside of the other end is provided with discharging opening, is connected with charging aperture bottom described feed bin 6, described discharging opening and import
Adapter 11 is connected；
Being provided with blowing pipe 8 on the downside of described spiral conveying pipeline 7, the position of described blowing pipe 8 is corresponding with the position of charging aperture, energy
Enough ensure that discharging is not lumpd, and does not blocks；
Being provided with respiratory organ 9 on the upside of described spiral conveying pipeline 7, the position of described respiratory organ 9 is corresponding with the position of discharging opening, can
Make the pressure in spiral conveying pipeline keep basically identical with external atmosphere pressure, thus realize stable material-supplying；
Central shaft 13 receiving electrode of rotator type speed governing dispenser 1, chain boiler combustion signal, control turning of circular rotatable parts 15
Dynamic angular velocity regulates powder-feeding amount；The fltting speed of spiral conveying pipeline 7 and the central axis angle speed of rotator type speed governing dispenser 1
Degree intercouples, and reaches the rotating speed that both adapt.
The Load Regulation of pulverized-coal fired boiler has the feature of hysteresis quality because of coal dust conveying and burning factor, if can be according to load
Variation tendency regulate the quantity delivered of coal dust in advance, the quick response of boiler load can be realized.Preferably, described rotator type is adjusted
Speed dispenser 1 can calculate suitable numerical value according to boiler load variation tendency, PLC or host computer, changes circle in advance and turns
The angular velocity of dynamic component 15 and the fltting speed of spiral conveying pipeline 7 matched or feed bin 6 powder falling amount, thus reach to adjust in advance
The purpose of coal saving powder quantity delivered, makes burning quickly respond load variations.
In addition to the implementation, present invention additionally comprises other embodiments, all employing equivalents or equivalence to replace
The technical scheme that mode is formed, all should fall within the scope of the hereto appended claims.
Claims (6)
1. a coal dust feeding device, it is characterised in that: it includes feed bin (6), the rotator type speed governing being sequentially arranged from top to bottom
Dispenser (1) and swinging airduct (5), pass through import between described rotator type speed governing dispenser (1) top and feed bin (6) bottom
Adapter (11) is connected, by discharge connection (12) between described rotator type speed governing dispenser (1) bottom and swinging airduct (5)
Being connected, described swinging airduct (5) includes the first horizontal pipeline section (5.1), the second horizontal pipeline section (5.2) and connecting bending pipeline section
(5.3), described first horizontal pipeline section (5.1) and the second horizontal pipeline section (5.2) are arranged in parallel up and down, described connecting bending pipeline section
(5.3) it is connected between the first horizontal pipeline section (5.1) right-hand member and the second horizontal pipeline section (5.2) right-hand member, described first horizontal pipeline section
(5.1) left end is provided with roots blower (4), is provided with Venturi (3) in described first horizontal pipeline section (5.1), described in go out
Mouth adapter (12) lower end is connected with Venturi (3) by material blanking tube (2).
A kind of coal dust feeding device the most according to claim 1, it is characterised in that: described coal dust feeding device also includes spiral shell
Rotation conveying pipeline (7), described spiral conveying pipeline (7) is provided with charging aperture near the upside of one end, arranges near the downside of the other end
Having discharging opening, described feed bin (6) bottom to be connected with charging aperture, described discharging opening is connected with entrance sleeve (11).
A kind of coal dust feeding device the most according to claim 1 and 2, it is characterised in that: described rotator type speed governing dispenser
(1) include that circular rotatable parts (15), described circular rotatable parts (15) are provided centrally with jackshaft (13), described circular rotatable
Multiple annular storage cavity (16), described entrance sleeve (11) and discharge connection (12) it is disposed with from inside to outside on parts (15)
All it is connected with multiple annulars storage cavity (16), is all separated into multiple by multiple dividing plates (10) in each annular storage cavity (16)
Storing lattice (14).
A kind of coal dust feeding device the most according to claim 1 and 2, it is characterised in that: described material blanking tube (2) top half
For vertical section, the latter half is tilting section, and the tilting section of described material blanking tube (2) and horizontal angle are 40 ° ~ 80 °.
A kind of coal dust feeding device the most according to claim 2, it is characterised in that: described spiral conveying pipeline (7) downside sets
Being equipped with blowing pipe (8), the position of described blowing pipe (8) is corresponding with the position of charging aperture.
A kind of coal dust feeding device the most according to claim 2, it is characterised in that: described spiral conveying pipeline (7) upside sets
Being equipped with respiratory organ (9), the position of described respiratory organ (9) is corresponding with the position of discharging opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745272.3A CN106185368B (en) | 2016-08-29 | 2016-08-29 | A kind of coal dust feeding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745272.3A CN106185368B (en) | 2016-08-29 | 2016-08-29 | A kind of coal dust feeding device |
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| CN106185368A true CN106185368A (en) | 2016-12-07 |
| CN106185368B CN106185368B (en) | 2018-12-25 |
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| CN201610745272.3A Active CN106185368B (en) | 2016-08-29 | 2016-08-29 | A kind of coal dust feeding device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108202969A (en) * | 2018-03-23 | 2018-06-26 | 海盐海利环保纤维有限公司 | A kind of clean bottle piece conveying device and carrying method for being used to produce regenerated fiber |
| CN108215299A (en) * | 2017-11-24 | 2018-06-29 | 卓弢机器人盐城有限公司 | A kind of automatic tabletting of environmental protection powder and blanking device |
| CN110963317A (en) * | 2019-12-12 | 2020-04-07 | 九江市美景水处理科技有限公司 | Intelligent powdery phosphorus removal agent feeding device |
| CN112524391A (en) * | 2020-12-30 | 2021-03-19 | 临沂中联水泥有限公司 | Pulverized coal conveying method with electricity-saving, noise-reducing, low-nitrogen and anti-accumulation functions |
| CN113790462A (en) * | 2021-09-08 | 2021-12-14 | 煤科院节能技术有限公司 | Biomass powder fuel storage and supply device |
| WO2022016712A1 (en) * | 2020-07-21 | 2022-01-27 | 西安热工研究院有限公司 | Improved split-type compact pulverized coal distributor |
| WO2023221757A1 (en) * | 2022-05-19 | 2023-11-23 | 西安热工研究院有限公司 | Biomass particle storage and feeding system |
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| CN1142034A (en) * | 1995-08-02 | 1997-02-05 | 李春甫 | Boiler coal-ash combustor |
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| CN201458346U (en) * | 2009-06-10 | 2010-05-12 | 煤炭科学研究总院 | Pulseless coal powder feeding device |
| CN102155842A (en) * | 2011-02-22 | 2011-08-17 | 黑龙江省电力科学研究院 | System for increasing pulverizing and drying output force during doped lignitous coal burning of burning bituminous coal boiler |
| WO2014204198A1 (en) * | 2013-06-19 | 2014-12-24 | Lee Chun-Woo | Combustion device for flammable powder |
| CN205973068U (en) * | 2016-08-29 | 2017-02-22 | 江苏双良锅炉有限公司 | Buggy feedway |
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| CN1142034A (en) * | 1995-08-02 | 1997-02-05 | 李春甫 | Boiler coal-ash combustor |
| CN101265510A (en) * | 2008-05-05 | 2008-09-17 | 武汉桂坤科技有限公司 | Fusion reduction reaction furnace and fusion smelting method for metal |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108215299A (en) * | 2017-11-24 | 2018-06-29 | 卓弢机器人盐城有限公司 | A kind of automatic tabletting of environmental protection powder and blanking device |
| CN108215299B (en) * | 2017-11-24 | 2024-01-19 | 卓弢机器人盐城有限公司 | Automatic tabletting and discharging device for environment-friendly powder |
| CN108202969A (en) * | 2018-03-23 | 2018-06-26 | 海盐海利环保纤维有限公司 | A kind of clean bottle piece conveying device and carrying method for being used to produce regenerated fiber |
| CN110963317A (en) * | 2019-12-12 | 2020-04-07 | 九江市美景水处理科技有限公司 | Intelligent powdery phosphorus removal agent feeding device |
| WO2022016712A1 (en) * | 2020-07-21 | 2022-01-27 | 西安热工研究院有限公司 | Improved split-type compact pulverized coal distributor |
| CN112524391A (en) * | 2020-12-30 | 2021-03-19 | 临沂中联水泥有限公司 | Pulverized coal conveying method with electricity-saving, noise-reducing, low-nitrogen and anti-accumulation functions |
| CN112524391B (en) * | 2020-12-30 | 2022-03-11 | 临沂中联水泥有限公司 | Pulverized coal conveying method with electricity-saving, noise-reducing, low-nitrogen and anti-accumulation functions |
| CN113790462A (en) * | 2021-09-08 | 2021-12-14 | 煤科院节能技术有限公司 | Biomass powder fuel storage and supply device |
| WO2023221757A1 (en) * | 2022-05-19 | 2023-11-23 | 西安热工研究院有限公司 | Biomass particle storage and feeding system |
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| CN106185368B (en) | 2018-12-25 |
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