CN201362984Y - Windproof dust suppression net - Google Patents
Windproof dust suppression net Download PDFInfo
- Publication number
- CN201362984Y CN201362984Y CNU2008202328398U CN200820232839U CN201362984Y CN 201362984 Y CN201362984 Y CN 201362984Y CN U2008202328398 U CNU2008202328398 U CN U2008202328398U CN 200820232839 U CN200820232839 U CN 200820232839U CN 201362984 Y CN201362984 Y CN 201362984Y
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- Prior art keywords
- wind
- mesh
- dust
- webpage
- steel structure
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- 239000000428 dust Substances 0.000 title abstract description 29
- 230000001629 suppression Effects 0.000 title abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 239000013590 bulk material Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 19
- 239000000463 material Substances 0.000 abstract description 11
- 238000000926 separation method Methods 0.000 abstract description 7
- 239000003245 coal Substances 0.000 abstract 1
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
- 230000003204 osmotic effect Effects 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 230000003134 recirculating effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005094 computer simulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001233242 Lontra Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The utility model relates to a windproof dust suppression net used in an open-air stock yard for bulk materials, which comprises a support steel structure, a plurality of mesh hinges, a fixed shaft, a bearing, a driven sprocket, a motor, a driving sprocket and a driving chain. The support steel structure is fixedly arranged on a concrete foundation; the fixed shaft, the bearing, the driven sprocket, the motor, the driving sprocket and the driving chain are arranged at the left side and the right side of one to three rows of windproof mesh hinges on the leading wind surface; the meshes on the mesh hinges are long holes or oval holes; one side of the meshes are stamped to be flanged diversion fins with certain angles; and the tapping rates of the mesh hinges are 20 percent to 50 percent. The utility model eliminates or reduces the separation, vortex and infiltration flow of the border layer. The angle of the dust suppression net can be adjusted according to the wind direction, thereby greatly improving the dust suppression effect, in particular the effect on the suppression of the secondary flying dust. The utility model can be widely used in the open-air stock yard for bulk materials in the port, coal mine, coal-fired power plant and other enterprises.
Description
Technical field
The utility model belongs to the wind-proof dust-suppression technical field, more particularly relates to the improvement and the innovation of the wind-proof dust-suppression net of open bulk materials stacking field.
Background technology
All there is open bulk materials stacking field in enterprises such as harbour, colliery and iron and steel works, coal-burning power plant, lime and cement material factory.Under wind action, certainly lead to airborne dust and reentrainment of dust.The solid particulate matter of stockpiling and storing in the open mainly contains three kinds of motion states under the wind-force effect: the spiral shell that is called along ground surface moves; Carried by wind, migration is called suspension with the wind; Particle between spiral shell moves and suspends leapt in the air before this, and then the track falling ground along rule is referred to as to quiver.
Airborne dust not only causes the severe contamination to atmospheric environment, and can cause the waste of raw material.Wherein the following micron particles of MP10 and MP10 is suspended in the atmosphere, and other local diffusions of box haul are to the tool harmfulness of atmospheric environment.Thick weather is caused by suspended contaminant often.Monitoring shows that pellet is the main cause that causes 5 grades of pollutions of air.The diameter of pellet is less than 10 microns, and promptly common people can be drawn in the lung by respiratory tract, and is very big to the harm of human body.Meanwhile, airborne dust has also produced traffic and has seriously influenced.
At present, the masses and society are more and more higher to the requirement of air quality.Therefore, imperative to the reentrainment of dust improvement in open-air bulk material yard.
Wind-proof dust-suppression net is the design library part editor and reuse that reduces the strong technology of wind, mainly be installed on the support steel structure by the metal otter board with certain percent opening or establishment, bonding, the nonmetal net sheet of extrusion modling, support steel structure is fixed on the underground concrete basis, cooperates with compositions such as corresponding auxiliary water injector, automatic instrument(s) systems.It is suppressing to be better than traditional watering, the measures such as agent with fixed attention, fabric covering admittedly of spray crust aspect the reentrainment of dust, and under the environmental index of equal conditions, underground storage of output investment ratio and sealing storage are economical, and simple to operation.
But up to now, traditional wind-proof dust-suppression web plate mostly is a plane, and it is still undesirable that its dust suppression particularly suppresses the effect of reentrainment of dust.When windproof net was not set, incoming flow wind quickened upwards to flow along the windward side of heap, produced boundary layer separation on the heap top; And under the effect of adverse pressure gradient, leeward what pile to forming a bigger vortex.The boundary layer separation on top and vortex all can produce bigger airborne dust.After traditional plate windproof net was set, the part of incoming flow wind upwards flowed to be called along the wall of windproof net and climbs stream, and produced at windproof net top and to separate, thereby the zone on the windproof net height degree in the wake zone forms the turbulent shear layer.Some incoming flow wind passes windproof online perforate, behind the consumed energy, continues flow further downstream, is called osmotic flow.Osmotic flow still can produce bigger airborne dust.
In addition, the change that the angle of traditional wind-proof dust-suppression net can not box haul is suitably regulated, and anti-dust effect further is restricted again.
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned shortcoming and defect, and a kind of wind-proof dust-suppression net of open bulk materials stacking field is provided.It can control boundary layer separation, vortex and osmotic flow preferably, and the effect that dust suppression particularly suppresses reentrainment of dust is greatly improved.It is solid type that webpage levels off template, and mesh has the flange distributing fin, and mechanical strength of self and wind loading rating also improve a lot.And the angle of dust-suppression net can box haul change suitably regulate, anti-dust effect is further enhanced.
In order to achieve the above object, the utility model wind-proof dust-suppression net comprise the concrete foundation that is fixed on around the open-air bulk material heap, a plurality of webpages on being fixed on the support steel structure on the concrete foundation and being installed on the support steel structure.Be distributed with mesh on the webpage, 1～3 gear wind webpage left and right sides, centre that is arranged on the main flow wind face is fixed with axle, and two bearings about installing and fixing on the relevant position, support steel structure both sides are about axle is installed in two bearings.Also fixedly mount a driven sprocket on the axle, fixedly mounting motor on support steel structure or the concrete foundation, fixedly mounting drive sprocket on the axle of motor.On drive sprocket and the driven sprocket chain drive-belt is installed.
Mesh on the webpage is slotted hole or elliptical aperture, and a side of mesh is stamped into the flange distributing fin, and the flange distributing fin at an angle.Slotted hole or elliptical aperture can be uniform or non-uniform, also can mixed distribution.The flange distributing fin of mesh one side can play guide functions, and the local wind direction that changes is further controlled osmotic flow; Can also improve intensity, the enhancing rigidity of webpage self.When using steel to make webpage, during punching the hole is expected that the punching press bending gets final product to a side, good manufacturability, and save material.
This is a kind of structure of webpage adjustable angle joint.According to wind direction, can be at any time with motor-driven sprocket wheel, chain, axle upset webpage, that is the leeward side of webpage and adverse wind face can regulate according to wind direction, made it the better windproof wind effect that presses down.
The percent opening of webpage is 20%～50%.This effect structure is fine.
The bulk material heap is gone up water spray in the open, makes its surface crust, further alleviates airborne dust.
Task of the present utility model comes to this and finishes.
The utility model can be controlled boundary layer separation, vortex and osmotic flow preferably, and the effect that dust suppression particularly suppresses reentrainment of dust is greatly improved.It is solid type that webpage levels off template, and mesh has the flange distributing fin, and mechanical strength of self and wind loading rating also improve a lot.And the facining the wind and change adjusting that leeward side can box haul of webpage, anti-dust effect is further enhanced.It can be widely used in the open bulk materials stacking field of enterprises such as harbour, colliery, iron and steel works, coal-burning power plant, lime and cement material factory.
Description of drawings
Fig. 1 is the structural representation of the utility model dust-break webpage.
Fig. 2 is the schematic diagram that has the mesh of flange distributing fin.
Fig. 3 is near the Atmospheric Flow performance plot of bank during for no wind-proof dust-suppression net.
Fig. 4 is provided with near the Atmospheric Flow performance plot the bank behind the wind-proof dust-suppression net.
Fig. 5 is for being provided with computer simulation test schematic diagram behind the wind-proof dust-suppression net.
The specific embodiment
Embodiment 1.A kind of wind-proof dust-suppression net is as Fig. 1～shown in Figure 2.Comprise the concrete foundation that is fixed on around the open-air bulk material heap 14, be fixed on the support steel structure 2 on the concrete foundation and be installed in a plurality of webpages on the support steel structure 2.Be distributed with mesh on the webpage.It is arranged on 3 gear wind webpages, 3 left and right sides, centre on the main flow wind face and is fixed with axle 1, and two bearings 4 about installing and fixing on the relevant position, support steel structure 2 both sides are about axle 1 is installed in two bearings 4.Also fixedly mounting a driven sprocket 5 on the axle 1.Fixedly mount motor 6 on the support steel structure 2, fixedly mounting drive sprocket 7 on the axle of motor 6.On drive sprocket 7 and the driven sprocket 5 chain drive-belt 8 is installed.Mesh 9 on its webpage 3 is a slotted hole, and a side of mesh 9 is stamped into flange distributing fin 10, and flange distributing fin 10 is 30 degree angles.
This is a kind of structure of adjustable angle joint of webpage 3.According to wind direction, can make webpage 3 be adjusted in a certain angle at any time with motor 6 drive sprockets 7, chain 8, driven sprocket 5, axle 1 and webpage 3, the better windproof wind effect that presses down is arranged.
The strong position of main flow wind of whole wind-proof dust-suppression net is provided with keep out the wind webpage 3, the more effectively dust suppression of 3 row's adjustable angle joints simultaneously.The percent opening of webpage 3 is 20%～50%.This effect structure is fine.
Consult Fig. 3.During no wind-proof dust-suppression net, incoming flow wind quickens upwards to flow along the windward side of bulk material heap (1), produces boundary layer separation on the heap top; And under the effect of adverse pressure gradient, leeward what pile to forming a bigger vortex; Thereby airborne dust and reentrainment of dust are serious.
Consult Fig. 4.After wind-proof dust-suppression net was set, the part of incoming flow wind upwards flowed to be called along the wall of wind-proof dust-suppression net (2) and climbs stream, and produced at windproof net top and to separate, thereby the zone on the windproof net height degree in the wake zone forms the turbulent shear layer; Some incoming flow wind passes windproof online perforate, behind the consumed energy, continues flow further downstream, is called osmotic flow.
Distinguished and admirable when wind-proof dust-suppression net, separate on the net top.At little percent opening＜20% time, osmotic flow is subjected to stopping of recirculating zone, also the recirculating zone can occur at the stockpile downwind side simultaneously.But when percent opening＞65%, because it is enough big to see through the air quantity of wind-proof dust-suppression net, wind-proof dust-suppression net does not almost have any protection effect.Good percent opening is 20%～50%.
Wind-proof dust-suppression net with identical percent opening, the mesh distribution situation also can influence the protection effect.With regard to the wind-proof dust-suppression net that percent opening is 40%, when the top of wind-proof dust-suppression net or bottom had different percent openings, average pressure and pressure oscillation were risen.
For the perforate wind-proof dust-suppression net, begin that from the top turbulent shear layer is just arranged.If percent opening＜20% recirculating zone can occur in the back of wind-proof dust-suppression net.With the increase of percent opening, in the back of wind-proof dust-suppression net a bigger vortex can appear.When reaching certain value, find to have two vortexs to exist.When being worth greater than this, because the enhancing of osmotic flow, propelling fluid flows forward, does not almost have big vortex to produce.
Fig. 5 is the schematic diagram that computer simulation test behind this wind-proof dust-suppression net is set.11 is incoming flow wind among the figure, and 12 for having the wind-proof dust-suppression net that has mesh on webpage and the webpage, and 14 is open-air bulk material heap, and 13 is its windward side, and 15 is its leeward side.The distance of wind-proof dust-suppression net 12 and open-air bulk material heap 14 is G, and X, Y are respectively horizontal, axis of ordinates.
Present embodiment has been controlled boundary layer separation, vortex and osmotic flow preferably, and the effect that dust suppression particularly suppresses reentrainment of dust is greatly improved.The mesh of webpage has the flange distributing fin, and mechanical strength of self and wind loading rating also improve a lot.And the facining the wind and change adjusting that leeward side can box haul of webpage, anti-dust effect is further enhanced.According to the simulation of computer, the maximum wind velocity on the stockpile windward side can be reduced to 3 meter per seconds by 7 meter per seconds, and effect is very remarkable.It can be widely used in the open bulk materials stacking field of enterprises such as harbour, colliery, iron and steel works, coal-burning power plant, lime and cement material factory.
Claims (3)
1. wind-proof dust-suppression net, comprise and be fixed on open-air bulk material heap concrete foundation on every side, be fixed on the support steel structure on the concrete foundation and be installed in a plurality of webpages on the support steel structure, be distributed with mesh on the webpage, 1～3 gear wind webpage left and right sides, centre that it is characterized in that being arranged on the main flow wind face is fixed with axle, two bearings about installing and fixing on the relevant position, support steel structure both sides, about axle is installed in two bearings, also fixedly mounting a driven sprocket on the axle, fixedly mounting motor on support steel structure or the concrete foundation, fixedly mounting drive sprocket on the axle of motor, on drive sprocket and the driven sprocket chain drive-belt is being installed.
2. according to the described wind-proof dust-suppression net of claim 1, it is characterized in that the mesh on the webpage is slotted hole or elliptical aperture, a side of mesh is stamped into the flange distributing fin, and the flange distributing fin at an angle.
3. according to claim 1 or 2 described wind-proof dust-suppression nets, the percent opening that it is characterized in that webpage is 20%～50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202328398U CN201362984Y (en) | 2008-12-25 | 2008-12-25 | Windproof dust suppression net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202328398U CN201362984Y (en) | 2008-12-25 | 2008-12-25 | Windproof dust suppression net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201362984Y true CN201362984Y (en) | 2009-12-16 |
Family
ID=41473645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202328398U Expired - Fee Related CN201362984Y (en) | 2008-12-25 | 2008-12-25 | Windproof dust suppression net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201362984Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836961A (en) * | 2017-02-21 | 2017-06-13 | 青岛智享专利技术开发有限公司 | A kind of environmental treatment electric power generating plants coal dust automatic absorbing protecting wall manages protecting wall |
| CN111036748A (en) * | 2019-11-29 | 2020-04-21 | 宣城久悠谷电子科技有限公司 | Environment-friendly sand-proof dust suppression net processing machine |
-
2008
- 2008-12-25 CN CNU2008202328398U patent/CN201362984Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836961A (en) * | 2017-02-21 | 2017-06-13 | 青岛智享专利技术开发有限公司 | A kind of environmental treatment electric power generating plants coal dust automatic absorbing protecting wall manages protecting wall |
| CN106836961B (en) * | 2017-02-21 | 2019-02-01 | 大唐黑龙江发电有限公司 | A kind of environmental treatment power plant coal dust automatic absorbing protecting wall |
| CN109322534A (en) * | 2017-02-21 | 2019-02-12 | 青岛智享专利技术开发有限公司 | Intelligent power generation factory coal dust automatic absorbing protecting wall |
| CN111036748A (en) * | 2019-11-29 | 2020-04-21 | 宣城久悠谷电子科技有限公司 | Environment-friendly sand-proof dust suppression net processing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20171225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |