CN105035771B - A kind of adjustable Geldart-D particle powder flow rate adjusting means of unilateral baffle plate - Google Patents
A kind of adjustable Geldart-D particle powder flow rate adjusting means of unilateral baffle plate Download PDFInfo
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- CN105035771B CN105035771B CN201510498773.1A CN201510498773A CN105035771B CN 105035771 B CN105035771 B CN 105035771B CN 201510498773 A CN201510498773 A CN 201510498773A CN 105035771 B CN105035771 B CN 105035771B
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- baffle plate
- geldart
- plate
- flow rate
- adjustable
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Abstract
The invention discloses a kind of unilateral adjustable Geldart-D particle powder flow rate adjusting means of baffle plate, to solve the uneven problem of flow velocity of generally existing during Geldart-D particle powder flowing.The flow rate adjustment device includes flange（1）, tube wall（2）, baffle plate storehouse（3）, executing agency（4）, rotary shaft（5）And fender plate（6）；It is characterized in that：The baffle plate storehouse（3）It is interior to be provided with liner plate windward（8）, the fender plate（6）In executing agency（4）Drive under can in the duct 0 90 degree rotation, the rotary shaft（5）Pass through bearing（7）With baffle plate storehouse（3）Connection.Fender plate of the present invention（6）By executing agency（4）Rotational angle is controlled, and then changes the circulation area of pipeline and the resistance of pipeline, to reach the purpose to Geldart-D particle powder multi-pipeline flow velocity well-balanced adjustment in commercial Application.The present invention has flexible adjustment, adjustable range is big, outward appearance is compact, anti abrasive advantage.
Description
Technical field
The present invention relates to a kind of unilateral adjustable Geldart-D particle powder flow rate adjusting means of baffle plate.
Background technology
Geldart-D particle is a kind of effective ways of utilization air-flow conveying granular solid in the duct, is widely used in various
The conveying of the powder of industrial department, such as pipeline of the solid fuel as coal dust in the primary air piping of thermal power plant.For
Coal-burning boiler, the distribution of First air manage-style powder is balanced to have weight for the stability of boiler operatiopn, economy, security and the feature of environmental protection
Influence.Primary wind and powder distribution inequality can glance off furnace flame center, cause in burner hearth temperatures at localized regions too high and
Combustion pulsation.This can not only cause combustion instability, inboard wall of burner hearth slagging, or even cause the serious danger of superheater over temperature booster
Evil.The uneven efficiency of combustion for both having reduced boiler of wind powder distribution, adds growing amount, is safe operation of power plant and energy-conservation again
Emission reduction urgent problem.
At present, Geldart-D particle powder flow rate regulation lacks flexible, effective device.Most of power plant are using cold conditions leveling
Method solves this problem, i.e.,：Adjustable contraction is installed in each First air pipeline, by adjusting in the case of the cold conditions of pure wind flow
Save the opening diameter size of each adjustable contraction to adjust each primary air piping resistance of ducting, so as to enter each primary air piping powder flow rate
Row regulation.
However, traditional adjustable contraction is not the regulation optimal device of Geldart-D particle powder flow rate.Traditional is adjustable
Shrinkage cavity is primarily present problems with：
1. after band powder operation, adjustable contraction opening diameter can not be adjusted in real time.
The size of adjustable contraction is determined according to the field test under pure stream condition, determines that throttle orifice is opened by field test
Pore diameter size is, it is necessary to wind speed in repeated measurement pipe.After band powder operation, adjustable contraction can not be adjusted further.Research shows, i.e.,
Cold conditions leveling has been reached good effect, very big deviation still occurs in the case of hot.Conventional tunable shrinkage cavity is in band
Powder can not be adjusted flexibly and effectively in the case of running, so that regulating effect well can not be played.
2. Conventional tunable shrinkage cavity structure space is excessive, dumb.
Conventional tunable shrinkage cavity uses bilateral straight cutting baffle plate, and structure space is big, but actual industrial scene does not have many times
Conventional tunable shrinkage cavity device is installed in enough spaces.
3. the easy heap powder-deposit of Conventional tunable shrinkage cavity causes jam.
Conventional tunable shrinkage cavity uses bilateral straight cutting baffle plate, and baffle plate vertical pipe, powder is easily deposited in baffle plate gap, led
Cause jam.
The content of the invention
To solve the above mentioned problem that prior art is present, it is an object of the invention to provide a kind of unilateral adjustable strength of baffle plate
Powder flow rate adjusting means is conveyed, still flexibly effectively Geldart-D particle powder flow rate can be carried out in the case of band powder operation
Regulation, so as to realize the purpose of Geldart-D particle powder multi-pipeline flow velocity well-balanced adjustment in commercial Application.
To realize the purpose of the present invention, the present invention uses following technical scheme：
A kind of adjustable Geldart-D particle powder flow rate adjusting means of unilateral baffle plate includes flange, tube wall, baffle plate storehouse, execution machine
Structure, rotary shaft and fender plate；It is characterized in that：Provided with liner plate windward in the baffle plate storehouse, so as to prevent powder flow to baffle plate
Storehouse is excessively washed away, and the fender plate 0-90 degree can rotate in the duct under the drive of executing agency, fender plate angle of rotation
Degree is different, and it stops that area is different, and the circulation area of pipeline is different with the resistance of ducting, so as to be turned by adjusting fender plate
The dynamic angular adjustment resistance of ducting, and then powder flow rate is adjusted.When fender plate rotational angle is 0 degree, stop area most
Greatly, when fender plate rotational angle is 90 degree, stop that area is minimum.Fender plate accounts for pipeline section to the stop area of powder
Long-pending 0-80%.
The rotary shaft is connected by bearing with baffle plate storehouse, so as to prevent the powder in pipeline from passing through slot leakage to pipeline
Outside.
Its longitudinal section of the fender plate is rectangular, arc or fold-line-shaped, so as to ensure the resistance of ducting with rotational angle line
Property change.
The tube wall, fender plate, rotary shaft, windward liner plate be made by wear-resistant steel material, the tube wall have ceramics
Liner, the anti-wear performance of intensifier.
Compared with prior art, the present invention has advantages below：
(1) in the case of band powder operation, fender plate 0-90 degree can be rotated in pipeline, and its resistance can be continuous
Change and the linearity is preferable.So as to neatly be continuously adjusted in the case of band powder operation to the resistance of ducting, so that
Each pipeline airvey system powder flow rate can effectively be adjusted.
(2) compared with Conventional tunable shrinkage cavity, the fender plate that the present invention is used is rotated in baffle plate storehouse, small with structure
Ingeniously, the characteristics of operating flexible, is well positioned to meet the requirement of industry spot.
(3) compared with Conventional tunable shrinkage cavity, the present invention is solved well using the fender plate that can be rotated in baffle plate storehouse
The problem of powder jam.
Brief description of the drawings
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings, wherein：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is top view of the present invention；
Fig. 3（a）It is A-A directions sectional view when fender plate of the present invention rotates 0 degree；
Fig. 3（b）It is A-A directions sectional view when fender plate of the present invention rotates 45 degree；
Fig. 3（c）It is A-A directions sectional view when fender plate of the present invention rotates 90 degree；
Fig. 4 is different shape fender plate sectional view of the present invention.
Wherein：1- flanges, 2- tube walls, 3- baffle plates storehouse, 4- executing agencies, 5- rotary shafts, 6- fender plates, 7- bearings, 8-
Liner plate windward.
Embodiment
Fig. 1 is the structural representation of the present invention.As shown in figure 1, the unilateral adjustable Geldart-D particle powder flow velocity modulation of baffle plate
Regulating device includes flange（1）, tube wall（2）, baffle plate storehouse（3）, executing agency（4）, rotary shaft（5）And fender plate（6）；Its feature
It is：The baffle plate storehouse（3）It is interior to be provided with liner plate windward（8）, so that prevent powder flow from excessively being washed away to baffle plate storehouse, the Adjustable device
Plate（6）In executing agency（4）Drive under can in the duct 0-90 degree rotate.The rotary shaft（5）Pass through bearing（7）With baffle plate
Storehouse（3）Connection, so that outside preventing the powder in pipeline by slot leakage to pipeline.
Fig. 2 is top view of the present invention, and Fig. 3 is A-A directions when adjustable baffle plate of the present invention is respectively at 0 degree, 45 degree, 90 degree
Sectional view.Fender plate rotational angle is different, and it stops that area is different, so that the circulation area of pipeline is different with the resistance of ducting,
So as to adjust the resistance of ducting by adjusting fender plate rotational angle, and then powder flow rate is adjusted.Fender plate
When rotational angle is 0 degree, stop that area is maximum, when fender plate rotational angle is 90 degree, stop that area is minimum.Fender plate
The 0-80% of pipeline section product is accounted for the stop area of powder.
Fig. 4 is the sectional view of different shape adjustable baffle plate of the present invention.Preferably, adjustable baffle plate longitudinal section is designed as square
Shape, arc or fold-line-shaped, so as to ensure that the resistance of ducting, with rotational angle linear change, improves regulating effect.
Preferably, the tube wall, fender plate, rotary shaft, windward liner plate be made by wear-resistant steel material, tube wall tool
Have ceramic-lined, to strengthen this adjusting means anti-wear performance, so as to extend its service life.
Embodiments of the present invention are described in detail above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned
In embodiment, the knowledge that one skilled in the relevant art possesses, many variations can also be made to it.Cause
This, protection scope of the present invention is defined when the scope that the claim depending on being proposed is limited.
Claims (5)
1. a kind of adjustable Geldart-D particle powder flow rate adjusting means of unilateral baffle plate includes flange（1）, tube wall（2）, baffle plate storehouse
（3）, executing agency（4）, rotary shaft（5）And fender plate（6）；It is characterized in that：The baffle plate storehouse（3）It is interior to be provided with liner plate windward
（8）, the fender plate（6）In executing agency（4）Drive under can in the duct 0-90 degree rotate, the rotary shaft（5）It is logical
Cross bearing（7）With baffle plate storehouse（3）Connection, the fender plate（6）Stop area account for pipeline section product 0-80%.
2. the adjustable Geldart-D particle powder flow rate adjusting means of unilateral baffle plate according to claim 1, it is characterised in that：Institute
State tube wall（2）, baffle plate storehouse（3）, rotary shaft（5）, fender plate（6）Liner plate windward（8）It is made by wear-resistant steel material, it is described
Tube wall（2）With ceramic-lined.
3. the adjustable Geldart-D particle powder flow rate adjusting means of unilateral baffle plate according to claim 1, it is characterised in that：Institute
State fender plate（6）Its longitudinal section is rectangular.
4. the adjustable Geldart-D particle powder flow rate adjusting means of unilateral baffle plate according to claim 1, it is characterised in that：Institute
State fender plate（6）Its longitudinal section camber.
5. the adjustable Geldart-D particle powder flow rate adjusting means of unilateral baffle plate according to claim 1, it is characterised in that：Institute
State fender plate（6）Its longitudinal section is into fold-line-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510498773.1A CN105035771B (en) | 2015-08-14 | 2015-08-14 | A kind of adjustable Geldart-D particle powder flow rate adjusting means of unilateral baffle plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510498773.1A CN105035771B (en) | 2015-08-14 | 2015-08-14 | A kind of adjustable Geldart-D particle powder flow rate adjusting means of unilateral baffle plate |
Publications (2)
| Publication Number | Publication Date |
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| CN105035771A CN105035771A (en) | 2015-11-11 |
| CN105035771B true CN105035771B (en) | 2017-10-10 |
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| CN201510498773.1A Active CN105035771B (en) | 2015-08-14 | 2015-08-14 | A kind of adjustable Geldart-D particle powder flow rate adjusting means of unilateral baffle plate |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107654664A (en) * | 2017-09-18 | 2018-02-02 | 珠海市华远自动化科技有限公司 | A kind of lower resistance is low to disturb flow resistance regulating valve |
| CN113862667A (en) * | 2021-09-30 | 2021-12-31 | 南京中科煜宸激光技术有限公司 | A multistage release device for broadband cladding vibration material disk |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09257235A (en) * | 1996-03-21 | 1997-09-30 | Mitsubishi Heavy Ind Ltd | Flow rate regulator for powdered body transport pipe |
| EP1304304B1 (en) * | 2001-10-05 | 2009-07-22 | Vervant Limited | Material transfer device, in particular for use with blenders |
| US20060153649A1 (en) * | 2005-01-07 | 2006-07-13 | Folstadt Robert H Jr | Particle loading system |
| CN101862035A (en) * | 2009-04-20 | 2010-10-20 | 扬州市天宝自动化工程有限公司 | Differential pressure air speed detection and control device |
| CN102351104A (en) * | 2011-09-07 | 2012-02-15 | 孙家鼎 | Rotation type ash conveyor |
| CN202492192U (en) * | 2012-03-15 | 2012-10-17 | 上虞市贝斯特风机有限公司 | Zip-top can conveying fan |
| CN103612916B (en) * | 2013-11-29 | 2016-03-16 | 上海天顺环保设备有限公司 | A kind of turnover plate type feeder |
| CN204847398U (en) * | 2015-08-14 | 2015-12-09 | 北京华清茵蓝科技有限公司 | Unilateral baffle adjustable air conveying powder flow rate adjusting device |
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