CN108939754A - The high speed water veil stream inhibition system that open space dust overflows scattered - Google Patents
The high speed water veil stream inhibition system that open space dust overflows scattered Download PDFInfo
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- CN108939754A CN108939754A CN201710389382.5A CN201710389382A CN108939754A CN 108939754 A CN108939754 A CN 108939754A CN 201710389382 A CN201710389382 A CN 201710389382A CN 108939754 A CN108939754 A CN 108939754A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/08—Means for controlling the separation process
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Abstract
The invention discloses the high speed water veil stream inhibition systems that a kind of open space dust overflows scattered, high pressure water flow is generated by pump, it is pipelined to nozzle, the autocontrol valve of each nozzle setting independent control, nozzle can generate the spray stream of high speed, fine and close, certain partial size, multiple nozzles are evenly arranged in open face with certain size, are made fog screen stream is seamless to be connected, are formed high speed water veil stream curtain uniformly, fine and close.Fog screen stream can generate induction to open dust particles are passed through, volume is inhaled, collision, trapping, cohesion, by the dust of water mist drop trapping under the entrainment of water flow and gravity final settlement to ground or surface of material, separate dust particles really from air, to effectively control dust recycling, pollution surrounding air is prevented.
Description
Technical field
The present invention relates to excessive raw edge (such as feed bins, material that dust space dust is controlled using high speed, fine and close fog screen stream
Hole, tunnel, hole, well, slot, door etc.), prevent pollution of the dust recycling to air.
The system includes pump, overflow valve, safety valve, pipeline, autocontrol valve, hose, nozzle, control cabinet, manually controls
Valve, pipeline distributor, pressure gauge etc. form high speed, continuous, densification water using multiple arrangement of nozzles on open spaces mouth periphery
Veil stream, inhibits dust particles, is intercepted, rolling up suction, trapping, is deposited to material eventually by water flow entrainment, gravity
Surface or ground, being really achieved control dust prevents the excessive scattered effect of dust particles.
Present device is simple, operation expense is low, can resist flow perturbation and wind influence adapts to various dust
Concentration situation of change.
Background technique
Dust is often referred to the particle of 0.1~100 μ m diameter, they are difficult to gravity precipitating in air, what this partial size referred to
It is aerodynamic diameter, wherein partial size settles down greater than 40 μm easy, and grain diameter is 10~40 μm more easily settled,
More difficult to settle, partial size can suspend for a long time in the sky, just because of small powder less than 0.25 μm that partial size is 0.25~10 μm
Suspension, the accumulation of dirt particle in an atmosphere form the haze weather of large area.
Dust of the diameter less than 10 μm is known as pellet (PM10), dust of the diameter less than 2.5 μm is known as fine
Grain object (PM2.5).People enters dust particles in human body by breathing the air containing dust, and dust size is smaller can to enter people
The position of body respiratory tract is deeper, and particulate matter of the partial size greater than 10 μm is usually deposited at the upper respiratory tract of human body, and partial size is less than 5 μm
Particle 50% can enter the deep of respiratory tract and be deposited in alveolar and lead to pneumoconiosis, the particle less than 2 μm can with 100% into
The deep bronchiole and alveolar for entering respiratory tract, can damage the organs such as nervous system, lung, heart, blood vessel.
Dust is typically due to the generation of the processes such as cutting, explosion, excavation, handling, conveying, crushing；To bulk material (such as
Coal, mine etc.) handling, heap take, in transmission process due to the disturbance of air-flow dust；The external forces meeting such as explosion, excavation, broken
Generate dust；Welding, gas flame cuttiug, combustion product gases etc. can also generate dust particles.
Dust particles are all to overflow to be scattered in atmosphere by container opening in many cases, and such as material outlet expects near coal-mine, hole
Mouth, tunnel face, well head, notch, door etc., the dust particles having spread in atmosphere are carried out handling its difficulty and cost all be
It is very high, therefore carrying out control to the excessive scattered source mouth of dust is an effective, easy and true feasible technology.
It is more commonly used method that overflowing scattered for dust is controlled using watering, and many waterings in actual use are not
Play the role of really getting control dust recycling, main cause is: dust is not deposited to surface of material or ground really after watering
Face；Dust particles cannot effectively be trapped by water droplet when watering partial size is excessive；Water droplet rapid steaming in air when partial size of sprinkling water is too small
Hair causes the dust grain of trapping to be discharged again again.
There are mainly two types of techniques for existing watering dedusting technology, a kind of to sprinkle water using big partial size, this method watering stream
Amount is big, and water flow is not closed, 1000 μm of the excessive > of drop particle diameter, and the easy through-fall fluid layer of dust particles cannot effectively trap small powder
Dirt particle can not really inhibit the diffusion of dust.Another kind is dry fog sprinkler system, using minute water droplet≤10 μm, due to
Misty small water particle in air can rapid evaporation, the dust of trapping is released back into air again, and partial size is too small is unable to gravity
Sedimentation controls no effect to the diffusion of true dust it cannot be guaranteed that dust particles landing returns to ground surface or surface of material.Institute
There are both techniques all and not can guarantee and operated normally in the case where having wind or flow perturbation influences, and cannot be according to dust concentration
Variation carries out watering amount adjustment.
Summary of the invention
High speed water spray of the invention inhibits system, by atomization of water current is 10 at partial size by nozzle using high pressure water flow
The water droplet of~1000 μ ms, high speed injection form fine and close fog screen stream, and uniform fold overflows in dust and dissipates on open space face,
High speed water veil stream can generate induction to dust particles, volume is inhaled, collision, trapping, cohesion, and will suspend skyborne dust
Grain traps in water mist drop, these particles being captured are deposited to ground or material table due to high-velocity flow entrainment and gravity
Face separates dust particles from air.
The technical solution adopted by the present invention to solve the technical problems is: high-voltage one-phase hydraulic atomizing technology is used, including
Pump, overflow valve, safety valve, autocontrol valve, single-phase nozzle, control cabinet, pipeline, hose, hand control valve, distributor, pressure
Table etc..High pressure water flow is generated by pump, via pipeline to nozzle, independent autocontrol valve, nozzle is arranged in each nozzle
The spray stream of high speed, continuous, fine and close, certain particle size can be generated, nozzle is evenly arranged on open space face, guarantees water mist
Curtain fluid layer is seamless to be connected, and forms high speed water spray curtain uniformly, fine and close.
Above-mentioned fog screen stream inhibits system, and the pump provides flow dynamic, and the pump discharge pressure > 1.0MPa is generated
High pressure water flow makes the nozzle eject high speed, fine and close, certain grain size distribution spray stream.The pump discharge by pipeline with
Autocontrol valve, nozzle are connected, and provide high pressure solid stream of water for the nozzle.
Above-mentioned fog screen stream inhibits system, and the outlet pressure and flow of the pump can be controlled automatically by the control cabinet
System and adjusting.
Above-mentioned fog screen stream inhibits system, and overflow valve, safety valve, pressure gauge is arranged on the pump discharge pipeline, works as water
When stream stops injection, the overflow valve is automatically turned on, and water flow is gone out by bypassing reflux stream, it is possible to reduce energy consumption.Work as pipe-line system
The safety valve automatically turns on release water flow when hypertonia, guarantees the safety of pipe network, equipment.
Above-mentioned fog screen stream inhibits system, and hand control valve, autocontrol valve, pressure gauge is all arranged in each bypass duct,
It is connected by hose with the nozzle, the autocontrol valve can be according to requiring to be independently controlled each nozzle.
The nozzle spray angle is 20~90 ° of ranges, is single-phase hydraulic (water) nozzle, including solid cone shaped, hollow cone
Shape, fan nozzle.
The nozzle setting angle θ, range are 0~90 °, by the nozzle can produce high speed, fine and close, certain partial size,
The spray stream of one fixed width, fog screen adjustable angle form downward fog screen stream, conducive to the dust grain sedimentation being captured.
By arranging that spacing w is evenly arranged the nozzle, w range is 0.1~1.5m, generates continuous, seamless, closed height
Fast water mist curtain forms the Dynamic Closed to open space.
Above-mentioned fog screen stream inhibits system, can form one layer of fine and close high speed water veil, dust can be inhibited with air-flow
Diffusion, dust is enclosed in space within water curtain.The small water droplet for the high-speed motion that water mist generates can occur with dust particles
Volume is inhaled, collision, agglomerates and trapped, and forms biggish water, mix dust particle, hybrid particles are in gravity and water flow entrainment force
Under the action of, final settlement to ground or surface of material are detached from dust from air, do not overflow and are scattered in atmosphere.
The invention has the advantages that the fog screen stream of high speed, fine and close, small water particle can really intercept, roll up suction, trapping,
Dust particles are settled, so that it is deposited to ground or surface of material, is separated from air.This high speed water veil stream can resist gas
The disturbing influence of stream, wind guarantees effective operation.And it can easily realize automatic control, adapting to dust concentration change influences.
The present invention can the authentic and valid dust particles by trapping by water flow entrainment and gravity be deposited to ground or
Surface of material.
Detailed description of the invention
Invention is further explained with reference to the accompanying drawing.
Fig. 1 is that high speed water veil stream inhibits system flow chart；
Fig. 2 is horizontal bidirectional to penetrating arrangement of nozzles figure；
Fig. 3 is horizontal single-headed injection nozzle layout drawing；
Fig. 4 is the vertical injection nozzle layout drawing of horizontal mouth；
Fig. 5 is vertical square orifice injection nozzle layout drawing；
Fig. 6 is vertical circular port injection nozzle layout drawing.
1. pump, 2. overflow valves, 3. safety valves, 4. pipelines, 5. autocontrol valves, 6. hoses, 7. nozzles, 8. fog screens in figure
Stream, 9. open-top receptacles.
Specific embodiment
Open space dust overflow scattered high speed water veil stream inhibit system include pump 1, overflow valve 2, safety valve 3, pipeline 4,
Autocontrol valve 5, connection hose 6, nozzle 7, control cabinet, hand control valve, pipeline distributor, pressure gauge etc., nozzle quantity root
It arranges and determines according to open size.
As shown in Fig. 1 system diagram, water flow flow to each nozzle 7 by 1 pressurization of pump, and pump discharge installs overflow valve 2, when nozzle 7
Stop overflow valve 2 when injection to automatically turn on, water flows back into water inlet；Pump discharge installs safety valve 3, pacifies when ductwork pressure is excessively high
Full valve 3 automatically turns on release water flow；The spray stream projected by nozzle forms high speed water veil stream 8 in container opening 9, water flow with
Pressure can be carried out automatically controlling and be adjusted by revolving speed of the control cabinet to pump.
[embodiment 1]
For horizontal open biggish space (such as material outlet, expects near coal-mine, well head at hatch), nozzle 7 can bi-directional symmetrical cloth
Fig. 2 such as is set to show.Of different size according to opening 9, arrangement of nozzles spacing w is 0.1~1.5m range, and injection forms continuous, seamless
Fog screen stream completely encloses open face.7 installation site angle, θ range of nozzle is 0~90 °, can form the water mist sprayed downwards,
Be conducive to water flow entrainment dust grain to move to the ground.The dust grain dissipated to overflow is intercepted under the action of high speed water spray, catches
Collection, final settlement to ground or surface of material.
[embodiment 2]
Horizontal open space (such as material outlet, expects near coal-mine, well head at hatch) lesser for size, nozzle 7 can also be single
Show to arrangement such as Fig. 3, of different size according to opening 9, arrangement of nozzles spacing w is 0.1~1.5m range, 7 installation position angle setting of nozzle
0~90 ° of θ range of degree, fog screen stream can form closing spray layer downwards in container opening, reach the control dust particles
Diffusion effect.
[embodiment 3]
For horizontal open space (such as material outlet, expects near coal-mine, well head at hatch), nozzle 7 can also be disposed vertically downward
Of different size according to opening 9 if Fig. 4 shows, arrangement of nozzles spacing w is 0.1~1.5m range, and fog screen stream can be in container opening
The high speed spray that closing moves downward is formed, dust particles are intercepted under the action of high speed water spray, trap, and press from both sides in spray stream
Final settlement is to ground or surface of material under band and gravity.
[embodiment 4]
For vertical open square opening space (such as tunnel face, hole, notch, doorway), nozzle 7 can spray downwards cloth
It sets Fig. 5 such as to show, of different size according to opening 9, arrangement of nozzles spacing w is 0.1~1.5m range, 7 installation site angle, θ model of nozzle
0~90 ° is enclosed, the spray stream sprayed downwards can be formed, the dust grain of transverse movement is intercepted under the action of high speed water spray, catches
Collection, is deposited to ground under the entrainment and gravity for moving downward spray stream.
[embodiment 5]
For vertical open circular space (such as tunnel face, hole, notch, doorway), nozzle 7 can also spray downwards cloth
It sets Fig. 6 such as to show, nozzle 7 can choose different ranges, and of different size according to opening 9, arrangement of nozzles spacing w is 0.1~1.5m
Range, 7 0~90 ° of installation site angle, θ range of nozzle, can form the spray stream sprayed downwards, the dust grain of transverse movement is in height
It is intercepted, traps under the action of fast spray stream, be deposited to ground under the entrainment of downward water spray stream and gravity.
Claims (8)
1. a kind of open space dust overflows, scattered high speed water veil stream inhibits system, including；Pump, overflow valve, safety valve, pipeline,
Autocontrol valve, hose, nozzle, control cabinet, hand control valve, pipeline distributor, pressure gauge etc., it is characterised in that: pump operation
High pressure water flow is generated, nozzle is pipelined to, independent autocontrol valve (electric and pneumatic), nozzle is arranged in each nozzle
High speed can be generated, the spray stream that fine and close, particle diameter distribution is 10~1000 μm, nozzle is evenly arranged, and guarantee that water mist is seamless and is connected, shape
At uniform, fine and close high speed water spray curtain.
2. fog screen stream according to claim 1 inhibits system, it is characterised in that: the pump pressure > 1.0MPa is pumped out
Mouth is connected by pipeline with autocontrol valve, nozzle, provides high pressure solid stream of water for nozzle.Overflow is set on pump discharge pipeline
Valve, safety valve, pressure gauge.
3. fog screen stream according to claim 1 or 2 inhibits system, it is characterised in that: the pressure of the pump, flow can be with
It automatically controls and adjusts.
4. fog screen stream according to claim 1 inhibits system, it is characterised in that: each bypass duct setting automatically controls
Valve is connected by hose with nozzle.
5. fog screen stream according to claim 1 inhibits system, it is characterised in that: the nozzle is single-phase hydraulic (water) spray
Mouth, spray angle are 20~90 ° of ranges, by the nozzle can produce high speed, the fine and close, partial size, the width water mist
Stream.
6. fog screen stream inhibits system according to claim 1 or 5, it is characterised in that: the nozzle setting angle is adjustable,
Range is 0~90 °, and it is adjustable to form water spray curtain flow angle.
7. fog screen stream according to claim 1 or 6 inhibits system, it is characterised in that: by being evenly arranged the nozzle,
Spacing is 0.1~1.5m, generates continuous, seamless, closed water mist curtain, forms the Dynamic Closed to open space.
8. fog screen stream according to claim 1 or claim 7 inhibits system, it is characterised in that: the arrangement of nozzles is unidirectional spray
It penetrates, is two-way to spray, vertical spray pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710389382.5A CN108939754A (en) | 2017-05-27 | 2017-05-27 | The high speed water veil stream inhibition system that open space dust overflows scattered |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710389382.5A CN108939754A (en) | 2017-05-27 | 2017-05-27 | The high speed water veil stream inhibition system that open space dust overflows scattered |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108939754A true CN108939754A (en) | 2018-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710389382.5A Pending CN108939754A (en) | 2017-05-27 | 2017-05-27 | The high speed water veil stream inhibition system that open space dust overflows scattered |
Country Status (1)
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| CN (1) | CN108939754A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362023A (en) * | 2018-12-26 | 2020-07-03 | 上海嘉怡环保设备工程有限公司 | High-speed water mist system for dust suppression and grid material accumulation prevention of unloading and dumping machine of dry bulk cargo conveying railway |
| CN111361958A (en) * | 2018-12-26 | 2020-07-03 | 上海嘉怡环保设备工程有限公司 | High-speed water mist system for return dust suppression of transfer point of belt conveyor and cleaning of surface of belt |
| CN112495089A (en) * | 2020-10-30 | 2021-03-16 | 中冶南方都市环保工程技术股份有限公司 | Suppression system and suppression method |
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| JP4326466B2 (en) * | 2004-12-28 | 2009-09-09 | 株式会社栗本鐵工所 | Dust removal equipment |
| CN102671491A (en) * | 2012-04-11 | 2012-09-19 | 陈勇 | High-pressure micron-sized atomizing dust suppression system |
| CN204528732U (en) * | 2015-01-30 | 2015-08-05 | 大力电工襄阳股份有限公司 | A kind of veil type dust arrester |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362023A (en) * | 2018-12-26 | 2020-07-03 | 上海嘉怡环保设备工程有限公司 | High-speed water mist system for dust suppression and grid material accumulation prevention of unloading and dumping machine of dry bulk cargo conveying railway |
| CN111361958A (en) * | 2018-12-26 | 2020-07-03 | 上海嘉怡环保设备工程有限公司 | High-speed water mist system for return dust suppression of transfer point of belt conveyor and cleaning of surface of belt |
| CN112495089A (en) * | 2020-10-30 | 2021-03-16 | 中冶南方都市环保工程技术股份有限公司 | Suppression system and suppression method |
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Application publication date: 20181207 |