CN109224644A - Axial-flow type dust-extraction unit and method - Google Patents
Axial-flow type dust-extraction unit and method Download PDFInfo
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- CN109224644A CN109224644A CN201811146000.7A CN201811146000A CN109224644A CN 109224644 A CN109224644 A CN 109224644A CN 201811146000 A CN201811146000 A CN 201811146000A CN 109224644 A CN109224644 A CN 109224644A
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- extraction unit
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000000605 extraction Methods 0.000 title claims abstract description 15
- 239000000428 dust Substances 0.000 claims abstract description 52
- 238000000926 separation method Methods 0.000 claims abstract description 32
- 238000003860 storage Methods 0.000 claims abstract description 28
- 239000007787 solid Substances 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 239000010419 fine particle Substances 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 15
- 238000011044 inertial separation Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cyclones (AREA)
Abstract
The invention discloses a kind of axial-flow type dust-extraction unit and methods, belong to gas solid separation field.Novel axial flow type dust-extraction unit adds ripple bend pipe, first vane piece, dust storage chamber and angle demodulator in input end；Outlet end is provided with exhaust pipe and dust storage chamber；Dust storage chamber ash discharging hole adds non-return valve.Dust-contained airflow occurs tentatively to play rotation after first vane piece, and in ripple pipe bent position since inertial separation goes out the bulky grains such as sandstone, stalk, into after cyclone separation, fine solid particle is separated under strong centrifugal action.Sandstone, stalk and the dust isolated flow through dust storage chamber, non-return valve, separator are flowed out, to realize silo dedusting.Invention increases the inertial separation abilities of pipe bent position, and the separation of air-flow and grain dust can be realized in the case where paying lesser energy loss, conventional separating apparatus problem poor for applicability is made up, improves the separative efficiency of silo dust.
Description
Technical field
The invention belongs to gas solid separation field, it is related to a kind of axial-flow type dust-extraction unit and method.
Background technique
In grain system, inside grain conveying equipment, inside grain warehouse body and the enclosure spaces such as basement, it is easy aggregation
A large amount of dust.The aggregation of dust is easy to the generation to cause an explosion accident, and therefore, it is necessary to remove the dust assembled in silo in time
The generation prevented accident.Stringent cleaning is not carried out before most of conveying grain into storehouse, all too many levels of processing fall off out sand,
Chad and stalk etc., so, grain dust has the characteristics that multicomponent, particle size distribution range are wide, easily assemble.In short, Grain Powder
The separation of dirt is an extremely difficult thing.
Existing dust separation method, which generallys use, to be separated by filtration and two methods of cyclonic separation.In general, being separated by filtration skill
Art is difficult to efficiently separate the grain dust in gas to the more demanding of filtering material.To thin when filtering material hole is larger
The treatment effect of micro dust is bad.When filtering material hole is smaller, flow resistance is larger, and strainer is easy blocking, needs periodically more
Change filtering material.Cyclone separation method realizes separation by the centrifugal force of air-flow, is broadly divided into reverse-flow and two class of axial-flow type.It is inverse
Flow-type separator has the advantages that separative efficiency is high.Patent CN201310403556.0 discloses a kind of for coal-fired plant boiler
The pulverized-coal collector of bin system, but that there are flow resistances is big, energy consumption is high, volume is big, takes up a large area for similar device
The shortcomings that.The advantage that turbo separator has flow resistance small, small in size.Patent CN201210539888.7 discloses one kind
Blade-carrying dust-extraction unit, but all in the presence of being difficult to, induced draft is fully rotatable similar device, the process range of partial size is narrow, separation
The shortcomings that low efficiency.The above problem, which is all limited, brings difficulty to grain dust separation.
Therefore, for the work characteristics of grain system, reasonable gas-solid separating device is designed, for solving grain dust
Rendezvous problem reduces dust explosion hidden danger, and grain system safe operation is maintained to be of great significance.
Summary of the invention
The invention solves technology be to provide the axis that a kind of flow resistance is small, separative efficiency is high, partial size process range is wide
The application method of streaming cyclone separator and the separator.The present invention provides a kind of novel cyclone separation methods, existing to overcome
The problem of with the presence of separator.Separative efficiency can be effectively improved in the case where not increasing occupied area using the present invention, subtract
Small separator pressure loss, reduces the energy consumption and use cost of separator.
A kind of axial-flow type dust-extraction unit, it is characterised in that: including ripple bend pipe, straight tube, exhaust pipe；Wherein ripple bend pipe
First end installs primary blades, and the second end of ripple bend pipe is connected with the first end of straight tube, and deflection cone, water conservancy diversion are installed among straight tube
Cone is equipped with whirlwind blades；The exhaust pipe protrudes into straight tube from the second end of straight tube；(second end end is outside exhaust pipe for straight tube
The part of side seals；Above-mentioned ripple bend pipe bent intermediate protruding parts install the first dust storage chamber, the first dust storage chamber and bellows phase
Connection, the first gas collection indoor location separation baffles；The outlet of first dust storage chamber is also equipped with non-return valve；The outer wall of above-mentioned exhaust pipe
(space surrounded between inner wall is the second dust storage chamber, and the outlet of the second dust storage chamber is also equipped with non-return valve with straight tube.
The dust removal method of the axial-flow type dust-extraction unit, it is characterised in that including following procedure: dust-contained airflow passes through this
Gas solid separation process twice occurs when dust-extraction unit.Primary blades induced draft rise rotation, the bulky grains such as chad, stalk due to by
Centrifugal force it is larger, be gradually thrown to from wall surface from air-flow, dust-contained airflow moves to ripple pipe bent position, and the bulky grains such as chad are by
The separation baffles capture of one dust storage chamber installation, due to the effect of gravity, striking the particle in separation baffles, to be deposited to dust discharge logical
Road flows through the first dust storage chamber, is discharged from non-return valve, and fine particle is since followability preferably fails to be sufficiently separated at this time, and the
First separation process terminates.Air-flow containing fine dusts flows subsequently through straight tube, and whirlwind blades and deflection cone make air-flow
Accelerate and generate biggish tangential velocity effect, the intensity of centrifugal force field greatly increases, and the tiny grains of sand and grain are got rid of
To outer wall, the second dust storage chamber surrounded between the outer wall of exhaust pipe and the inner wall of straight tube is discharged to dust collection, and from non-return valve,
Clean gas is discharged from exhaust pipe, and second of separation process terminates.First time separation process separates the bulky grains such as stone sand
Out, second of separation process makes fine particle be separated, and dust removal process complementation twice combines, to the sky of grain system
Gas is sufficiently filtered, and then obtains clean, clean air.
The separative efficiency of conventional separating apparatus is limited by grain diameter, is imitated for single particle size with stronger separation
Rate, separative efficiency reduces when particle for separating other partial sizes；And often occurs channelling back-mixing in use process.The present invention
By addition ripple bend pipe and primary blades, different-grain diameter is taken full advantage of with the difference of particle air-flow follow-up capability, is increased
Separator reduces the design requirement of whirlwind blades, the ripple bend pipe of front to the separating capacity of gravel, stalk and bulky grain
It is used to handle large-size particles with primary blades, guarantees that whirlwind blades there can be higher separative efficiency to the particle of small particle
?.The present invention installs non-return valve additional in the ash discharging hole of the first dust storage chamber and the second dust storage chamber, guarantees the one-way flow of air-flow, prevents
The air-flow occurred when work is flow backwards, and channelling back-mixing occurs after preventing particle from flowing out separator and again returns in separator.This
Device improves separator to the trapping ability of particle, enhances air-flow to the separation energy of the large dust particles such as stalk, sandstone
The shortcomings that power reduces the design difficulty of whirlwind blades, compensates for the narrow application range of conventional separating apparatus.
The axial-flow type dust-extraction unit, it is characterised in that: above-mentioned ripple bend pipe is also equipped with camber adjusters.
Above-mentioned camber adjusters are made of the first bar, the second bar, third bar, and a column card slot is provided on above-mentioned first bar,
A sliding slot is provided on second bar；The first end of first bar is connected with the first end of ripple bend pipe, the second end of the first bar and
The first end of second bar is hinged, and the second end of the second bar is connected with the first dust storage chamber；In the first end of third bar and the first bar
Card slot cooperation, the second end of third bar matched with the sliding slot of the second bar by adjusting slider.
The present apparatus and the axial-flow type particle separator that silo dedusting can be can be applied to, in addition to for filtering grain-production
In dust, it may also be used for bulky grain and tiny in dusty gas is realized in the dedusting in building materials, chemical industry, boiler, metallurgy, mine etc.
The common separation of particle.
Detailed description of the invention
Fig. 1 is the principle of the present invention figure；
Fig. 2 is outline drawing of the invention；
Fig. 3 is other views of the invention, and figure a) shows that inner cyclone, figure b) are top view, and figure c) is main view, figure
It d) is bottom view；
Fig. 4 is ripple bend pipe and angle demodulator installation diagram of the invention；
Fig. 5 is the non-return valve that the present invention uses；
Fig. 6 is the angle demodulator that the present invention uses.
Figure label title: 1. whirlwind blades, 2. deflection cones, 3. ripple bend pipes, 4. first dust storage chambers, 5. separate gear
Plate, 6. primary blades, 7. second dust storage chambers, 8. exhaust pipes, 9. non-return valves, 10. angle demodulators, wherein the first bar of 10-1.,
The second bar of 10-2., 10-3. third bar, 10-4 adjusting slider, 10-5 fastening bolt, 11. straight tubes.
Specific implementation method
In order to make those skilled in the art more fully understand technical solution of the present invention, 1-6 is to the present invention with reference to the accompanying drawing
It is described in further detail.
The invention mainly comprises ripple bend pipe 3, primary blades 6, dust storage chamber 4, non-return valve 9 and angle demodulator 10, angles
Degree adjusts angle 10 for changing the bending angle of ripple bend pipe 3, adjusts the intensity of inertial separation, setting in the first dust storage chamber 4
Capture the separation baffles 5 of the chad, stalk separated.Air-flow is after bend pipe isolates bulky grain, into centrifugal separating area,
Strong centrifugal force is generated at whirlwind blades 1 and deflection cone 2, so that fine solid particle is separated, the subtle powder separated
Dirt is discharged at the second dust storage chamber (7), final to realize grain system dust removing effects.The above is only implementation model of the invention
Example, it is noted that those of ordinary skill in the art, made on the basis of not departing from the technology of the present invention principle
Improvement and deformation still falls within protection scope of the present invention.
As shown, separator import ripple bend pipe is made of corrugated stainless steel tubing or leather hose, in order to change
The angle of entrance region and cyclone separation adjusts the inertial separation intensity of pipe bent position.The second end and the second bar of third bar 10-3
The sliding slot tie point of 10-2 is connected by screw bolts, in the card slot middle position of the first bar 10-1 and the centre of the second bar 10-2 sliding slot
Position indicates center groove, and the fastening bolt of hinge joint is tightened when adjusting angle, guarantees that the hinge joint is fixed, unscrews adjusting
Fastening bolt in sliding block 10-4 sliding slot, when the second bar 10-2 and third bar 10-3 hinge joint are located in the second bar 10-2 sliding slot
When heart position, curved angle mobile adjusting slider 10-4: adjusting slider 10-4 and the first bar 10-1 are needed according to ripple bend pipe
The center groove of card slot is aligned, then the angle of the first bar 10-1 and the second bar 10-2 are right angle；Adjusting slider 10-4 is from the first bar
When the central location of 10-1 card slot is moved toward the first bar 10-1 and the second bar 10-2 hinged joint, the first bar 10-1 and the second bar 10-2
Angle be obtuse angle；When left end of the adjusting slider 10-4 from the central location of the first bar 10-1 card slot toward 10-1 is mobile, the first bar
The angle of 10-1 and the second bar 10-2 are acute angle.It in actual use, can also be by the center of adjusting slider 10-4 and the first bar 10-1
Groove alignment, the fastening bolt of mobile second bar 10-2 and third bar 10-3: when fastening bolt is located at the center of the second bar 10-2
When at scribe line position, the angle of the first bar 10-1 and the second bar 10-2 are right angle；Fastening bolt is from center groove toward the first bar 10-
For 1 prescription to when sliding, the angle of the first bar 10-1 and the second bar 10-2 are obtuse angle, and fastening bolt is from center groove toward sliding slot outside
When mobile, the angle of the first bar 10-1 and the second bar 10-2 are acute angle.
Claims (4)
1. a kind of axial-flow type dust-extraction unit, it is characterised in that:
Including ripple bend pipe (3), straight tube (11), exhaust pipe (8)；
Wherein the first end of ripple bend pipe (3) installs primary blades (6), and the of the second end of ripple bend pipe (3) and straight tube (11)
One end is connected, and installs deflection cone (2) among straight tube, and deflection cone (2) is equipped with whirlwind blades (1)；The exhaust pipe (8) is from straight
The second end of pipe (11) protrudes into straight tube (11)；Part sealing of straight tube (11) the second end end on the outside of exhaust pipe (8)；
Above-mentioned ripple bend pipe (3) bent intermediate protruding parts install the first dust storage chamber (4), the first dust storage chamber (4) and bellows (3)
It is connected, the first gas collection indoor location separation baffles (5)；The outlet of first dust storage chamber (4) is also equipped with non-return valve；
The space surrounded between the outer wall of above-mentioned exhaust pipe (8) and the inner wall of straight tube (11) is the second dust storage chamber (7), the second dust
The outlet of room (7) is also equipped with non-return valve.
2. axial-flow type dust-extraction unit according to claim 1, it is characterised in that: above-mentioned ripple bend pipe (3) is also equipped with curved
It spends adjuster (10).
3. axial-flow type dust-extraction unit according to claim 1, it is characterised in that:
Above-mentioned camber adjusters (10) are made of the first bar (10-1), the second bar (10-2), third bar (10-3), above-mentioned first bar
It is provided with a column card slot on (10-1), a sliding slot is provided on the second bar (10-2)；
The first end of first bar is connected with the first end of ripple bend pipe (3), the second end of the first bar (10-1) and the second bar (10-
2) first end is hinged, and the second end of the second bar (10-2) is connected with the first dust storage chamber (4)；
The first end of third bar (10-3) and the card slot on the first bar (10-1) cooperate, the second end and second of third bar (10-3)
The sliding slot of bar (10-2) overregulates sliding block (10-4) and matches.
4. the dust removal method of axial-flow type dust-extraction unit according to claim 1, it is characterised in that including following procedure:
When passing through this dust-extraction unit gas solid separation process twice occurs for dust-contained airflow;Primary blades (6) induced draft plays rotation, stone
The bulky grains such as gravel, stalk are gradually thrown to from wall surface from air-flow, dust-contained airflow moves to ripple since the centrifugal force being subject to is larger
At bend pipe (3), the separation baffles (5) that the bulky grains such as chad are installed by the first dust storage chamber (4) are captured, and flow through the first dust storage chamber (4),
It is discharged from non-return valve (9), fine particle is since followability preferably fails to be sufficiently separated at this time, first time separation process knot
Beam;Air-flow containing fine dusts flows subsequently through straight tube (11), and whirlwind blades (1) and deflection cone (2) accelerate air-flow
And biggish tangential velocity effect is generated, the intensity of centrifugal force field greatly increases, and the tiny grains of sand and grain are thrown to outside
Wall, the second dust storage chamber (7) surrounded between the outer wall of exhaust pipe (8) and the inner wall of straight tube (11) is to dust collection, and from check
Valve (9) discharge, clean gas are discharged from exhaust pipe (8), and second of separation process terminates;First time separation process makes stone sand etc.
Bulky grain is separated, and second of separation process makes fine particle be separated, and dust removal process complementation twice combines, right
The air of grain system is sufficiently filtered, and then obtains clean, clean air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811146000.7A CN109224644B (en) | 2018-09-29 | 2018-09-29 | Axial flow type dust removing device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811146000.7A CN109224644B (en) | 2018-09-29 | 2018-09-29 | Axial flow type dust removing device and method |
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| Publication Number | Publication Date |
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| CN109224644A true CN109224644A (en) | 2019-01-18 |
| CN109224644B CN109224644B (en) | 2024-03-29 |
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| CN201811146000.7A Active CN109224644B (en) | 2018-09-29 | 2018-09-29 | Axial flow type dust removing device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111213481A (en) * | 2020-01-16 | 2020-06-02 | 上海工程技术大学 | Wind power structure type dust removal system of wheat combine harvester |
| CN112682175A (en) * | 2020-12-22 | 2021-04-20 | 中国船舶重工集团公司第七0三研究所 | Air inlet filtering system and filtering method for irreversible dust-removing gas turbine |
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| CN112682175A (en) * | 2020-12-22 | 2021-04-20 | 中国船舶重工集团公司第七0三研究所 | Air inlet filtering system and filtering method for irreversible dust-removing gas turbine |
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| CN109224644B (en) | 2024-03-29 |
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