CN106039887A - Intelligent high pressure micro-mist de-dusting system and de-dusting method - Google Patents
Intelligent high pressure micro-mist de-dusting system and de-dusting method Download PDFInfo
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- CN106039887A CN106039887A CN201610502313.6A CN201610502313A CN106039887A CN 106039887 A CN106039887 A CN 106039887A CN 201610502313 A CN201610502313 A CN 201610502313A CN 106039887 A CN106039887 A CN 106039887A
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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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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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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
Abstract
The invention relates to an intelligent high pressure micro-mist de-dusting system and a de-dusting method. The system comprises a main control panel and a dust concentration sensor, a burst impact sensor, a time sensor, a man-machine interaction unit and a high pressure micro-mist de-dusting unit which are connected with the main control panel, wherein the dust concentration sensor is used for detecting the dust concentration on the working site; the burst impact sensor is used for detecting air impact wave; the time sensor is used for timing; the high pressure micro-mist de-dusting unit is capable of realizing the functions of generating micro-mist and de-dusting by spraying mist; the high pressure micro-mist de-dusting unit comprises a water inlet pipe, a filter, a high pressure pump, a high pressure water pipe and a micro-mist nozzle which are successively connected with each other along the water flowing direction; water entering from the water inlet pipe is filtered by the filter, and then is pressurized by the high pressure pump, conveyed to the use site through the high pressure water pipe and is formed into nanometer micro-mist through the micro-mist nozzle, so that the de-dusting operation can be performed. The intelligent high pressure micro-mist de-dusting system has high degree of automation and is capable of realizing the onsite micro-mist de-dusting in the manner of vibration, dust and timing detection combined with the high pressure micro-mist de-dusting unit.
Description
Technical field
The present invention relates to a kind of intelligent high-pressure micro-mist dust falling system and dust-removing method.
Background technology
The solid particle that can be present in air with floating state the long period is called dust.Floating dust means grain in air
Footpath is less than the solid particle of 10 μm, and it can be the most floating, and otherwise referred to as swim dust.Also referred to as may be used
Sucking particulate matter, english abbreviation is PM10.Respirable dust is very big to the damaging influence of health, elegant at air
In dust often contain many toxic components, such as chromium, manganese, cadmium, lead, hydrargyrum, arsenic etc..After human body sucks dust, less than 5 μm
Microgranule, easily gos deep into pulmonary, causes toxic pneumonitis or pneumosilicosis, the most also can cause pulmonary carcinoma.It is deposited on the pollutant one of pulmonary
Denier is dissolved, and will directly invade blood, cause septicemia, the pollutant not being dissolved, it is also possible to absorbed by cell, lead
Cause cyto-architectural destruction.Blasting fume S simultaneouslyXOY、NXOYAlso can be directly absorbed by the body, not only destroy human respiratory but also
The easy etching apparatus of acid solution formed, causes shortened equipment life.Therefore dust is control effectively and is by bargh
The most necessary is also the safety in production index that must reach." dust harzard inspection based rank regulation ", it is desirable to enterprise, public institution should
III, IV grade of dust harzard is classified as treating flour dust emphasis.III, IV grade of dust harzard should be classified as occupation by administrative departments for labor at different levels
Medical police focus.Classified detection, dust harzard reaches IV grade, it is necessary to eliminated in 1 year, otherwise, work administration
Department has the right to order to stop production.And various places administrative department for labor and authorities of enterprise should be using enterprise's dust harzard situation as enterprises
The important references index of industry upgrading, has II grade of dust harzard, should not rise up into more than two grades enterprises of country.
The spraying technique measure of the existing dust prevention and control of enterprise fails to play preferably effect, and its main cause is existing droplet
Grain diameter be hundreds of even more than 1,000 times of dust size, droplet quantity be far smaller than the quantity of dust granules therefore the two
Between collision probability the least.Thus can not cause dust deadweight increase thus settle.And droplet granule is micro-in native system
Meter level, its granularity is consistent with the particle diameter of pellet, and the probability collided the most therebetween is the highest, can be greatly improved
Dust-laying effect.
Summary of the invention
It is an object of the invention to provide a kind of intelligent high-pressure micro-mist dust falling system and dust-removing method, this system automation journey
Degree height, by vibration, dust and timing detection mode and the micro-mist depositing dust being implemented in combination with scene of high-pressure micro-mist depositing dust unit.
For achieving the above object, the technical scheme is that a kind of intelligent high-pressure micro-mist dust falling system, including master control borad
And be connected with this master control borad sensor of dust concentration, blasting impact sensor, timer, man-machine interactively unit, high pressure
Micro-mist depositing dust unit；Described sensor of dust concentration is used for detecting working site dust concentration, and described blasting impact sensor is used
In detection air-shock wave, described timer carries out timing, described high-pressure micro-mist depositing dust unit realize micro-mist generation and
Spray for dust suppression function.
In an embodiment of the present invention, described high-pressure micro-mist depositing dust unit includes the water inlet being sequentially connected with along flow direction
Pipe, filter, high-pressure pump, high-pressure water pipe, fog spray-head, from the middle water of water inlet pipe entrance after filter filters, through high pressure
Pump supercharging supercharging, and it is transported to use scene via high-pressure water pipe, then produce nano level micro-mist through fog spray-head, carry out depositing dust
Operation.
In an embodiment of the present invention, described high-pressure pump is connected to described master control borad through a three phase electric machine.
In an embodiment of the present invention, also include level sensor, the nozzle exit pressure sensor being connected with described master control borad,
Described level sensor is for being detected as the water level of the water tank that water inlet pipe supplies water, and described nozzle exit pressure sensor is used for detecting high pressure
The pressure of water pipe.
In an embodiment of the present invention, the influent pressure for detecting and show intake pressure it is additionally provided with at described water inlet pipe
Power table, described high-pressure water pipe is additionally provided with the discharge pressure table for detecting and demonstrate water pressure.
In an embodiment of the present invention, described filter is for filtering sponge, miscellaneous to remove the little granule in water inlet pipe water inlet
Matter.
In an embodiment of the present invention, described blasting impact sensor is vibrating sensor or sonic sensor, time described
Between sensor be intervalometer.
In an embodiment of the present invention, described man-machine interactively unit includes liquid crystal display and button；Described liquid crystal display
Device is liquid crystal touch display screen.
Present invention also offers a kind of dust-removing method based on intelligent high-pressure described above micro-mist dust falling system, including as follows
Step,
S1: open system, carries out the setting of systematic parameter by man-machine interactively unit, makes a reservation for including to timer timing
Time, dust concentration threshold value；
S2: start timer and start timing, start sensor of dust concentration, blasting impact sensor simultaneously and carry out work respectively
Make on-the-spot dust concentration, air-shock wave detection；
S3: be more than if meeting the working site dust concentration that timing time reaches the scheduled time, sensor of dust concentration detects
Dust concentration threshold value or blasting impact sensor detect one of them condition of air-shock wave, then start high-pressure pump from water tank
Drawing water, water flows through filter, high pressure pump flow to high-pressure water pipe, and produces nano level micro-mist by fog spray-head, carries out depositing dust
Operation.
In an embodiment of the present invention, also need before described step S3 by level sensor, nozzle exit pressure sensor in fact
Time detection the water level of water tank, the pressure of high-pressure water pipe.
Compared to prior art, the method have the advantages that
1, automaticity is high, can be controlled by acoustic wave, dust concentration induction apparatus and timing means various ways
System processed；
2, spray velocity is fast, and broad covered area, adhesive force is good, can form the most airtight space, reduces dust granules further
Diffusion；
3, water droplet granule is tiny, when reaching micron order and contact with the dust granules hiked up, forms a kind of moist fog-like body, can be fast
Speed suppression depositing dust；
4, water droplet granule is tiny, have stronger penetration power and medicinal liquid adhesive force to object, medicament utilization rate is high, it is little to pollute；Especially
It is suitable for dust suppressant and the efficient sprinkling of other medicaments under ore deposit, effectively reduces water consumption and reduce environmental pollution；
5, fuselage weight is light, more reasonable structure, takes up room less；
6, use the cycle long, once mounting, (maintenance period is 2 to 4 months) can be used for a long time.
Accompanying drawing explanation
Fig. 1 is present system theory diagram.
Fig. 2 is electrical apparatus control circuit figure of the present invention.
Fig. 3 is high-pressure micro-mist depositing dust unit flow cavitation result flow chart of the present invention.
Fig. 4 is high-pressure micro-mist depositing dust unit flow direction schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings, technical scheme is specifically described.
As Figure 1-4, a kind of intelligent high-pressure micro-mist dust falling system of the present invention, connect including master control borad and with this master control borad
The sensor of dust concentration that connects, blasting impact sensor, timer, man-machine interactively unit, high-pressure micro-mist depositing dust unit；Institute
Stating sensor of dust concentration for detecting working site dust concentration, described blasting impact sensor is used for detecting air blast
Ripple, described timer carries out timing, and described high-pressure micro-mist depositing dust unit realizes generation and the spray for dust suppression function of micro-mist.Institute
State water inlet pipe that high-pressure micro-mist depositing dust unit includes being sequentially connected with along flow direction, filter, high-pressure pump, high-pressure water pipe, micro-mist
Shower nozzle, from the middle water of water inlet pipe entrance after filter filters, through high-pressure pump supercharging supercharging, and is transported to via high-pressure water pipe
Use scene, then produce nano level micro-mist through fog spray-head, carry out depositing dust operation.
Described high-pressure pump is connected to described master control borad through a three phase electric machine.Also include that the water level being connected with described master control borad passes
Sensor, nozzle exit pressure sensor, described level sensor is for being detected as the water level of the water tank that water inlet pipe supplies water, described nozzle pressure
Force transducer is for detecting the pressure of high-pressure water pipe.It is additionally provided with at described water inlet pipe for detecting and showing entering of intake pressure
Water pressure table, described high-pressure water pipe is additionally provided with the discharge pressure table for detecting and demonstrate water pressure.
Described filter is for filtering sponge, to remove the little granule foreign in water inlet pipe water inlet.
Described blasting impact sensor is vibrating sensor or sonic sensor, and described timer is intervalometer.
Described man-machine interactively unit includes liquid crystal display and button；Described liquid crystal display is liquid crystal touch display screen.
Present invention also offers a kind of dust-removing method based on intelligent high-pressure described above micro-mist dust falling system, including as follows
Step,
S1: open system, carries out the setting of systematic parameter by man-machine interactively unit, makes a reservation for including to timer timing
Time, dust concentration threshold value；
S2: start timer and start timing, start sensor of dust concentration, blasting impact sensor simultaneously and carry out work respectively
Make on-the-spot dust concentration, air-shock wave detection；
S3: be more than if meeting the working site dust concentration that timing time reaches the scheduled time, sensor of dust concentration detects
Dust concentration threshold value or blasting impact sensor detect one of them condition of air-shock wave, then start high-pressure pump from water tank
Drawing water, water flows through filter, high pressure pump flow to high-pressure water pipe, and produces nano level micro-mist by fog spray-head, carries out depositing dust
Operation.
In an embodiment of the present invention, also need before described step S3 by level sensor, nozzle exit pressure sensor in fact
Time detection the water level of water tank, the pressure of high-pressure water pipe.
Technical solution of the present invention is told about below by way of specific embodiment.
Intelligent high-pressure micro-mist dust falling system, as shown in Figure 1, it can be seen that intelligent high-pressure micro-mist dust falling system of the present invention,
Three kinds of modes are had can automatically to start spraying, it is not necessary to human intervention: (1) has sensor of dust concentration working site dust to be detected
Concentration over-standard；(2) blasting impact sensor detects shock wave；(3) timing is to (the mine blasting time is substantially fixing
), start spraying.They the most corresponding three kinds of service conditions.This system is it can also be provided that meet two or three simultaneously
Condition restarts spraying, reduces irrelevant factor interference, mainly includes following two part:
One, electrical equipment control
Electrical equipment portion controls part point employing sensor and automatically controls, and is specifically shown in Fig. 2.In conjunction with Fig. 2, using blasting vibration, dust is dense
Degree and time correspond to actual needs as the startup triggering of whole system.Controller uses 220V voltage as power supply, main circuit
Use 380V voltage.At control panel, can be realized this by arranging startup and end time, oscillation intensity and dust concentration
System can adapt to the spray for dust suppression of multiple situation.Mainly consider this system in design and be capable of unattended situation
Under, still can the work of safety and stability, therefore the multiple sensors used is as the factor triggering system start-up work.Three kinds of sensings
Device uses "or" type to connect, it is only necessary to has a condition to meet, can connect main circuit.Later stage can access overvoltage the most again
Protection, prevents the situation of the burn-down of electric motor caused because of water-pipe blockage.Workflow is as follows: set timer start or
Person's end time, the marginal value of oscillation intensity and dust concentration marginal value, when there being one to meet condition be, by main controller controls
Starting main circuit, start 380V electric brake, system starts spraying.After being sprayed by certain time, actual condition not when completely living,
The most not in spray time section, the vibration being not above vibration critical value and the dust exceeded standard, master controller is cut off the electricity supply, and stops
Spraying.
Two, mechanical part
Mechanical part designs as shown in Figure 3,4, by water inlet pipe, inlet gage, filter, high-pressure pump, three phase electric machine, water under high pressure
Pipe high-pressure manometer, fog spray-head forms.
It is mainly water transport in this part to use.The middle water entered from water inlet pipe filters through filter, removes little granule foreign,
Prevent from blocking fog spray-head, increase to 8-10 atmospheric pressure through high-pressure pump supercharging.It is transported to use scene, then warp by high-pressure water pipe
Fog spray-head produces nano level micro-mist, carries out depositing dust operation.
The subject matter considered during mechanical part design:
1, produce nano level micro-mist quantity abundant, effectively absorb；
2, centering water carries out multiple times of filtration, prevents from blocking fog spray-head；
3, prevent water from entering the electrical equipments such as motor.
Three, Design Theory calculates[1]
When droplet meets with dust granules, the own effect of inertia of granule that particle diameter is little is little, and so they can change operation side
Do not collide with it to walking around droplet along with gas flow；And the own effect of inertia of dust granules that particle diameter is big, density is big
Greatly, so can not change self-operating direction with gas flow when running into droplet, ultimately result in collide with droplet and
It is captured.The efficiency of seizing dust of this mode is directly proportional to dust size size, is inversely proportional to mist droplet particle size size.Isolated droplet
Efficiency of seizing dust is obtained by Theoretical Calculation, is stokes number K p and the function of reynolds number Re, wherein as K p > 0.2
Time, there is an efficiency of seizing dust:
Dirt is caught in interception
If the quality of grit is not put within the scope of consideration, then grit will have identical streamline track with air-flow,
When grit radius is more than the distance of water smoke to air-flow streamline, droplet will contact with grit and be caught interception, this process
It is interception and catches dirt effect.Intercept efficiency of seizing dust to be directly proportional to the size of dust, be inversely proportional to the size of fogdrop diameter.Powder
The motional inertia of dirt granule and the speed of air-flow are inoperative during dirt is caught in interception.Assume when dissecting interception function mechanism
Grit does not has quality only to have physical dimension, then the size of grit is directly proportional to intercepting efficiency of seizing dust.
Dirt is caught in diffusion
Generally, when the dust size in dust-contained airflow is bigger, grit can follow inertial collision and interception function is caught
Catch.But when grit particle diameter is the least especially when it is less than 0.1nm, and grit is created enough by the gas molecule in air-flow
Impulsive force, makes it make irregular Brownian movement after collision.Those distance droplets when making among irregular Brownian movement
The nearest grit the most likely bumps against with it and is captured, and dirt is caught in the referred to as diffusion of this process.
The spreading effect of dust progressively strengthens with the increase of droplet collision probability along with it.The increase of collision probability is companion
Along with the granule of dust is the least, flow velocity is the slowest, and temperature also increases, and the warm-up movement of grit will be accelerated and produce.
Gravity catches dirt
When dust granules is with gas motion, droplet can catch the grit that those particle diameters are big, density is big, and this process referred to as gravity is caught
Dirt.The size of grit particle diameter, density and gas flow rate have together decided on the size of action of gravity.Gravity catches efficiency and the grit of dirt
Particle diameter and density size be directly proportional, be inversely proportional to air velocity.
It is not often individually to be worked by wherein a certain mechanism among the actual application of dust removal mechanism, but multiple machine
The mutual synergy of reason determines the efficiency of dedusting, so efficiency of dust collection can be made to compare single mechanism higher.But, due to
The dust of a certain particle diameter can be captured because of different mechanism, but its efficiency being captured but can only calculate one time, so
The aggregate efficiency of dedusting can not be represented with the simple addition of different the produced efficiency of dust collections of Related Mechanism.
In sum, the particle diameter of droplet is the key factor affecting efficiency of dust collection.Efficiency of dust collection is inversely proportional to mist droplet particle size.
But if mist droplet particle size can make it evaporate and rupture too fast time too small among reality application, droplet total number is too much, on the contrary
Make the efficiency of dust collection too low generation effect that things turn into their opposites when they reach the extreme.Additionally, pass through experiment and the research table of the most a large amount of experts and scholars
Bright, the best results of nebulization dust when the speed of service of droplet is 20 ~ 30m/s.Conventional micro-mist dust collection method water consumption is big,
And the scope of application is little, the drop particle diameter of generation is excessive, and efficiency of dust collection is low and causes the significant wastage of water resource, to respiratory
The action effect of dust is the most notable.High-pressure micro-mist dust-settling technology was used widely development the most in recent years, captured
A difficult problem to small particle dust action effect difference.Having experiment to show, high-pressure micro-mist dust-settling technology can be effectively improved the utilization of water
Rate, typically can save 50%-80% water.
Being above presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, produced function is made
With during without departing from the scope of technical solution of the present invention, belong to protection scope of the present invention.
List of references:
[1] entirely shake. Datang eastern two barrows band driving station high-pressure micro-mist dust pelletizing system experimental study [D] of triumph. Liaoning engineering skill
Art university, 2013..
Claims (10)
1. intelligent high-pressure micro-mist dust falling system, it is characterised in that: include master control borad and dense with the dust that this master control borad is connected
Degree sensor, blasting impact sensor, timer, man-machine interactively unit, high-pressure micro-mist depositing dust unit；Described dust concentration
Sensor is used for detecting working site dust concentration, and described blasting impact sensor is used for detecting air-shock wave, described time
Sensor carries out timing, and described high-pressure micro-mist depositing dust unit realizes generation and the spray for dust suppression function of micro-mist.
Intelligent high-pressure the most according to claim 1 micro-mist dust falling system, it is characterised in that: described high-pressure micro-mist depositing dust unit
Including the water inlet pipe being sequentially connected with along flow direction, filter, high-pressure pump, high-pressure water pipe, fog spray-head, enter from water inlet pipe
Middle water is after filter filters, and through high-pressure pump supercharging supercharging, and is transported to use scene via high-pressure water pipe, then through micro-spray painting
Head produces nano level micro-mist, carries out depositing dust operation.
Intelligent high-pressure the most according to claim 2 micro-mist dust falling system, it is characterised in that: described high-pressure pump is through a three-phase electricity
Machine is connected to described master control borad.
Intelligent high-pressure the most according to claim 2 micro-mist dust falling system, it is characterised in that: also include with described master control borad even
The level sensor that connects, nozzle exit pressure sensor, described level sensor for being detected as the water level of the water tank that water inlet pipe supplies water,
Described nozzle exit pressure sensor is for detecting the pressure of high-pressure water pipe.
5. according to the intelligent high-pressure micro-mist dust falling system described in claim 2 to 4 any one, it is characterised in that: described water inlet
Be additionally provided with the inlet gage for detecting and show intake pressure at pipe, described high-pressure water pipe be additionally provided with for detection and
Demonstrate the discharge pressure table of water pressure.
6. according to the intelligent high-pressure micro-mist dust falling system described in claim 2 to 4 any one, it is characterised in that: described filtration
Device is for filtering sponge, to remove the little granule foreign in water inlet pipe water inlet.
Intelligent high-pressure the most according to claim 1 micro-mist dust falling system, it is characterised in that: described blasting impact sensor is
Vibrating sensor or sonic sensor, described timer is intervalometer.
Intelligent high-pressure the most according to claim 1 micro-mist dust falling system, it is characterised in that: described man-machine interactively unit includes
Liquid crystal display and button；Described liquid crystal display is liquid crystal touch display screen.
9. a dust-removing method based on the micro-mist dust falling system of intelligent high-pressure described in claim 4, it is characterised in that: include as follows
Step,
S1: open system, carries out the setting of systematic parameter by man-machine interactively unit, makes a reservation for including to timer timing
Time, dust concentration threshold value；
S2: start timer and start timing, start sensor of dust concentration, blasting impact sensor simultaneously and carry out work respectively
Make on-the-spot dust concentration, air-shock wave detection；
S3: be more than if meeting the working site dust concentration that timing time reaches the scheduled time, sensor of dust concentration detects
Dust concentration threshold value or blasting impact sensor detect one of them condition of air-shock wave, then start high-pressure pump from water tank
Drawing water, water flows through filter, high pressure pump flow to high-pressure water pipe, and produces nano level micro-mist by fog spray-head, carries out depositing dust
Operation.
Dust-removing method the most according to claim 9, it is characterised in that: also need before described step S3 to pass through level sensor
Device, the water level of water tank that nozzle exit pressure sensor detects in real time, the pressure of high-pressure water pipe.
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| CN106731347A (en) * | 2016-11-30 | 2017-05-31 | 合肥亿福自动化科技有限公司 | One kind automation wet dedusting system |
| CN111203052A (en) * | 2019-08-21 | 2020-05-29 | 青岛福瀛建设集团有限公司 | Earth and rockfill engineering excavation process prevents raise dust sprinkling system |
| CN112354304A (en) * | 2020-10-29 | 2021-02-12 | 上海建工集团股份有限公司 | Spraying dust-settling system and dust-settling method thereof |
| CN113680163A (en) * | 2021-08-31 | 2021-11-23 | 中国水利水电第七工程局有限公司 | Automatic dust fall system for blasting excavation of high slope bench |
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| CN106731347A (en) * | 2016-11-30 | 2017-05-31 | 合肥亿福自动化科技有限公司 | One kind automation wet dedusting system |
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| CN112354304A (en) * | 2020-10-29 | 2021-02-12 | 上海建工集团股份有限公司 | Spraying dust-settling system and dust-settling method thereof |
| CN113680163A (en) * | 2021-08-31 | 2021-11-23 | 中国水利水电第七工程局有限公司 | Automatic dust fall system for blasting excavation of high slope bench |
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Application publication date: 20161026 |