CN105386776B - The dry spray operation area dust migration of mine and the nature imitation experiment device and method of preventing and treating - Google Patents
The dry spray operation area dust migration of mine and the nature imitation experiment device and method of preventing and treating Download PDFInfo
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- CN105386776B CN105386776B CN201510676618.4A CN201510676618A CN105386776B CN 105386776 B CN105386776 B CN 105386776B CN 201510676618 A CN201510676618 A CN 201510676618A CN 105386776 B CN105386776 B CN 105386776B
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- 239000000428 dust Substances 0.000 title claims abstract description 178
- 239000007921 spray Substances 0.000 title claims abstract description 118
- 230000005012 migration Effects 0.000 title claims abstract description 41
- 238000013508 migration Methods 0.000 title claims abstract description 41
- 238000002474 experimental method Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004088 simulation Methods 0.000 claims abstract description 76
- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 238000005507 spraying Methods 0.000 claims abstract description 43
- 238000003756 stirring Methods 0.000 claims abstract description 21
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 238000009423 ventilation Methods 0.000 claims abstract description 16
- 238000005065 mining Methods 0.000 claims abstract description 11
- 238000009826 distribution Methods 0.000 claims abstract description 10
- 230000008878 coupling Effects 0.000 claims description 18
- 238000010168 coupling process Methods 0.000 claims description 18
- 238000005859 coupling reaction Methods 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 17
- 239000003595 mist Substances 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 13
- 238000011160 research Methods 0.000 claims description 8
- 238000004062 sedimentation Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 2
- 230000033228 biological regulation Effects 0.000 claims description 2
- 239000005336 safety glass Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000151 deposition Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 3
- 238000010410 dusting Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
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- 239000000843 powder Substances 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 229920005479 Lucite® Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses the nature imitation experiment device and method of a kind of dry spray operation area dust migration of mine and preventing and treating, analogue simulation is disposed with the forced air duct for importing wind and the pull-out type air duct for extracting wind out in dry spray tunnel, analogue simulation is provided with simulation mining rail in dry spray tunnel, emulation feeding machine is provided with simulation mining rail, emulate mixer and emulation spraying machine, feeding dust mechanism is provided with emulation feeder, stirring dust mechanism is provided with emulation mixer, jet is provided with emulation spraying machine, jet dust mechanism is provided with jet, jet is towards the injection bounce-back dust mechanism being arranged in the dry spray tunnel of analogue simulation, spraying negative pressure secondary device for reducing dust is provided with emulation spraying machine.The distribution of air flow under the dry spray operation area difference draft type of mine laneway, each air duct diverse location, obstructed air current state can be simulated, the airborne dust moving distribution rule in single dirt source and more dirt sources under different ventilation conditions, under different dirt source positions can be simulated.
Description
Technical field
The present invention relates to the nature imitation experiment device and method of the dry spray of mine, more particularly to a kind of dry spray operation area dust of mine
Migration and the nature imitation experiment device and method of preventing and treating.
Background technology
At present, anchor spray cement concrete is one of major way of roadway support, however, anchor spray cement concrete is especially
Dry spray operation is in implementation process when compound goes out from lance ejection, and it is existing to produce isolation for concrete in the presence of high-pressure blast
As, while along with being influenceed by spray plane rebound effect, cause dust particle separation diffusion, nozzle and between by spray plane drastically
Substantial amounts of dust is produced, causes working face scene dust concentration still higher, and this process is in whole gunite concrete operation
During one of main dust production resource.In addition the process such as dry shotcreting operation feeding, stirring produces substantial amounts of high concentrate dust,
In the case where not using any dust prevention, the dry spray operation area dust concentration of mine laneway is up to 1000mg/m3More than, and
Close to 40%, the health to worker causes greatly to threaten and endangers respirable dust proportion.Removed even if taking
Dirt measure, the situation of most working faces is still quite severe, and dust concentration seriously exceedes national Specification.
In order to reduce the live dust concentration of tunnel Gan Pen operation areas, existing a variety of depositing dust control dirt measures both at home and abroad at present and
Efficient cleaner, but, not effective powder perfect not enough for the Prevention Technique of the dust of tunnel Gan Pen operation areas
Dirt prophylactico-therapeutic measures, this big chunk reason are that the research to tunnel Gan Pen operation areas scene wind-dirt migration rule is not deep enough.
For a long time, wind-dirt under different situations-mist migration, coupling, settlement law are different, and some is even extremely complex, for
Airborne dust transport conditions in the dry spray operation area of a certain mine laneway under air current state are then mainly according to the practical experience of people
Selected with subjectivity.
The airborne dust migration rule in the dry spray operation area of mine laneway and dust prevention and control technology are studied, can not only be significantly
Degree reduces the dust concentration in the dry spray operation area air of mine laneway, and the dust suppression work tool to the other dust settings in underground
There is positive reference function.Study the airborne dust migration rule and dust prevention and control skill under different air current states and under spray field
Art, with dust removal by ventilation in this determination tunnel, the optimal parameter of spray dust-reducing system, it is necessary to have it is a kind of can the dry spray in real simulation tunnel
Operation area air current state, dust state, the analogue simulation device of airborne dust migration state and state of spraying disclose difference
Situation leeward-the migration of dirt-mist, coupling, depositing dust rule.By research, can specify it is dry spray operation area wind-dirt migration rule with
And negative pressure secondary device for reducing dust and automation air duct are doing the control dust removing effects of spray operation area, are preferred arrangement negative pressure secondary
Device for reducing dust and automation air duct provide scientific basis.Final realize reduces tunnel Gan Pen operation areas dust concentration, improves
Operating environment, so as to reduce the incidence of disease of operating personnel's pneumoconiosis, promote coal production occupational health is horizontal to improve.Therefore, grind
Studying carefully tunnel Gan Pen operation areas dust migration rule and its prevention and controls has very important realistic meaning.
The content of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of dry spray operation area dust migration of mine
And the nature imitation experiment device and method of preventing and treating.
In order to solve the above technical problems, the present invention program includes：
A kind of nature imitation experiment device for the dry spray operation area dust migration of mine laneway and preventing and treating, it is included by tempering glass
The dry spray tunnel of analogue simulation made of glass, wherein, the forced air duct for importing wind is disposed with the dry spray tunnel of analogue simulation
And for extracting the pull-out type air duct of wind out, analogue simulation is provided with simulation mining rail in dry spray tunnel, simulates mining rail
On be provided with emulation feeding machine, emulation mixer and emulation spraying machine, emulate and be provided with feeding dust mechanism on feeder, imitate
Stirring dust mechanism is provided with true mixer, emulates and is provided with jet on spraying machine, jet production is provided with jet
Dirt mechanism, jet are emulated and set on spraying machine towards the injection bounce-back dust mechanism being arranged in the dry spray tunnel of analogue simulation
There is spraying negative pressure secondary device for reducing dust.
Described nature imitation experiment device, wherein, it has been evenly arranged more in the dry spray tunnel of above-mentioned analogue simulation and has been used to simulate
The metal friction post gone up a hill in tunnel, gone down the hill, the angle of the dry spray tunnel inwall of metal friction post upper end and analogue simulation be 90 ° extremely
135°。
Described nature imitation experiment device, wherein, above-mentioned metal friction post includes the first vertical portion, setting on the first vertical portion
There is the extension extended laterally, the upper end of extension is provided with the first elliptical section, the second vertical portion is provided with the first elliptical section,
The second elliptical section is provided with second vertical portion, support end is provided with the second elliptical section.
Described nature imitation experiment device, wherein, the dry spray tunnel of above-mentioned analogue simulation with forced air duct, pull-out type air duct
Corresponding position is provided with monorail crane, and analogue simulation has been evenly arranged multiple monorail crane transverse moving mechanisms on dry spray tunnel, has made pressure
Entering formula air duct, pull-out type air duct can move along corresponding monorail crane.
Described nature imitation experiment device, wherein, above-mentioned forced air duct is pressed into by the first flexible air duct converter and one
Formula blower fan is connected, and forced blower fan is configured with the first electrodeless frequency converter；Automation air duct is provided with forced air duct.
Described nature imitation experiment device, wherein, above-mentioned automation air duct is connected with forced air duct, and automation is attached
Multiple bafflers have been evenly arranged in wall air duct, multiple air-out bar gaps are formed between baffler, have automated one end of air duct
It is provided with ventilation butterfly valve；The both ends of automation air duct are provided with air velocity transducer inside air duct, distinguished and admirable pressure inside air duct
Force snesor.
Described nature imitation experiment device, wherein, above-mentioned pull-out type air duct is extracted out by the second flexible air duct converter and one
Rotating vane type dedusting fan is connected, and pull-out type Wet-type dust-removal fan is configured with the second electrodeless frequency converter.
Described nature imitation experiment device, wherein, above-mentioned emulation spraying machine is connected by spray pipe with a high-pressure pump, high
Press pump is connected with storage tank.
Described nature imitation experiment device, wherein, above-mentioned analogue simulation has been evenly arranged wind in multiple tunnels in dry spray tunnel
Sensor of dust concentration in fast sensor, tunnel.
A kind of method using the nature imitation experiment device, it comprises the following steps：
A, the first electrodeless frequency converter and/or the second electrodeless frequency converter are adjusted and realizes different wind speed sizes, generation stablize it is distinguished and admirable,
Automation air duct is adjusted simultaneously and forms a certain degree of more radial direction Whirl deposite tanks, is extruded from forced air duct distinguished and admirable into imitative
The true dry spray tunnel of simulation, it is distinguished and admirable encounter the meeting head on of the dry spray tunnel front end of analogue simulation after, wind direction alee migrate by side, if only measuring
Distribution of air flow rule, then it is not turned on spray negative pressure secondary device for reducing dust, feeding dust mechanism, stirring dust mechanism, jet production
Dirt mechanism and injection bounce-back dust mechanism, collect distinguished and admirable data by air velocity transducer in tunnel, obtain analogue simulation Gan Pen lanes
Road Nei Ganpen operation areas distribution of air flow rule；
B, to study wind-dirt migration rule, then immediately above-mentioned steps A, opens feeding dust mechanism, stirring dust machine
With one or several in injection bounce-back dust mechanism, simulation produces certain density dust, passes through for structure, jet dust mechanism
Dust concentration sensor collection related data in air velocity transducer and tunnel in tunnel, obtain doing spray in the dry spray tunnel of analogue simulation
The single dirt source in operation area or the wind-dirt migration rule in more dirt sources；
C, to the migration of research wind-dirt-mist three-phase medium, coupling, settlement law, then and then above-mentioned steps B, in unlatching
Expect dust mechanism, stirring dust mechanism, jet dust mechanism and injection rebound in dust mechanism some or certain it is several, treat
After having gathered related wind speed size, dust concentration data, spraying negative pressure secondary device for reducing dust, spraying negative pressure secondary depositing dust dress are opened
Middle generation negative pressure field and spray field are put, airborne dust is caught, in simulation tunnel three-phase occurs for distinguished and admirable, dust and droplet
Medium migration, coupling, sedimentation, by dust concentration sensor collection related data in air velocity transducer in tunnel, tunnel, obtain
Wind-the dirt in single dirt source or more dirt sources-mist migration, couple, settlement law, needed for the sedimentation for drawing different-grain diameter scope dust
Optimal spray parameters；
D, the control dust removing effects under air duct difference air output are automated to research, then and then above-mentioned steps C, it is fixed
Amount changes the rotational angle of ventilation butterfly valve, so as to realize the control to automating air duct air output, realizes different-effect
Close air curtain, by dust concentration sensor collection related data in air velocity transducer in tunnel, tunnel, obtain single dirt source or
Wind-dirt-the mist in the more dirt sources of person closes control dust removing effects and migration, coupling, settlement law under air curtain effect in wind wall air duct.
A kind of dry spray operation area dust migration of mine provided by the invention and the nature imitation experiment device and method of preventing and treating, can
Simulate the distribution of air flow under the dry spray operation area difference draft type of mine laneway, each air duct diverse location, obstructed air current state, energy
Enough simulate the airborne dust moving distribution rule in single dirt source and more dirt sources under different ventilation conditions, under different dirt source positions, energy
Enough simulate different condition under automate air duct institute into close air curtain control dirt effect, can simulate under different ventilation conditions
Wind-dirt-mist coupling, migration, settlement law, it is capable of the dust-laying effect of test different types nozzle, is provided for research and development high efficiency nozzle
Technical support；Also influence of the spraying hydraulic pressure to atomizing de-dusting effect can be tested, selects suitable irrigation pressure to provide for different spray nozzles
Technical support；By controlling air current state and wind speed size under spray field, the distinguished and admirable influence to spray effect is studied.
Brief description of the drawings
Fig. 1 is the structural representation of nature imitation experiment device in the present invention；
Fig. 2 is metal friction post and the structural representation in the dry spray tunnel of analogue simulation in the present invention；
Fig. 3 is the structural representation of metal friction post in the present invention；
Fig. 4 is the structural representation that air duct is automated in the present invention.
Embodiment
The invention provides the nature imitation experiment device and method of a kind of dry spray operation area dust migration of mine and preventing and treating, to make
The purpose of the present invention, technical scheme and effect are clearer, clear and definite, and the present invention is described in more detail below.It should be appreciated that
The specific embodiments described herein are merely illustrative of the present invention, is not intended to limit the present invention.
The migration of spray operation area dust and the nature imitation experiment device prevented and treated are done for mine laneway the invention provides a kind of, such as
Shown in Fig. 1, it includes the dry spray tunnel 4 of the analogue simulation made of safety glass, and the dry spray tunnel 4 of analogue simulation uses semicircular arch
Tee section, the length in the dry spray tunnel 4 of analogue simulation can be 40m, and can increase the dry spray tunnel 4 of analogue simulation by the form of welding
Length, the dry spray clear span of tunnel 4 of analogue simulation and clear height are respectively 4.5m, 3.5m, and its height and width can be according to requirement of experiment
Change the combination of different height and width by way of dismantling and resetting, it is achieved thereby that head-room, width and length
The flexible transformation of degree, tunnel head seal, afterbody are completely open, lucite collocation steel of the tunnel by thickness for 0.01-0.03m
Tendons skeleton is made.And forced air duct 6 for importing wind is disposed with the dry spray tunnel 4 of analogue simulation and for extracting wind out
Pull-out type air duct 24, forced air duct 6, pull-out type air duct 24 be axially respectively arranged along tunnel, forced air duct 6, pull-out type
The radius of air duct 24 is 0.35m, and forced air duct 6, the center of pull-out type air duct 24 to analogue simulation do the distance of the spray bottom plate of tunnel 4
For 2.25m, meet head on distance of the forced air duct 6 to the dry spray front end of tunnel 4 of analogue simulation is 7m.
Analogue simulation is provided with simulation mining rail 11 in dry spray tunnel 4, simulates and is provided with mining rail 11 in emulation
Material machine 18, emulation mixer 16 and emulation spraying machine 14, emulate and feeding dust mechanism 19 are provided with feeder 18, emulation stirring
Stirring dust mechanism 17 is provided with machine 16, emulates and is provided with jet on spraying machine 14, jet production is provided with jet
Dirt mechanism 12, jet emulate spraying machine 14 towards the injection bounce-back dust mechanism 13 being arranged in the dry spray tunnel 4 of analogue simulation
On be provided with spraying negative pressure secondary device for reducing dust 15.Mining rail 11 is simulated along the dry spray tunnel 4 of analogue simulation axially adjacent to side
Arranged at the bottom plate of wall, the width of simulation mining rail 11 is 1m, length 40m, can also adjust its longitudinal position as needed
Put；Being sequentially arranged at certain intervals along the dry spray posterior-anterior direction of tunnel 4 of analogue simulation on simulation mining rail 11 can be with
Be fixed on the width that and can while on rail moves axially be 1m, a height of 2m emulation feeder 18, emulation mixer
16 with emulating spraying machine 14.Feeding dust mechanism 19, stirring dust mechanism 17, jet dust mechanism 12 and injection bounce-back dust
The particle size range that mechanism 13 can produce dust is 0.1-50 μm, and the mass flow of dust is produced into the dry spray tunnel 4 of analogue simulation
Scope is 0-10kg/h.Spraying negative pressure secondary device for reducing dust 15 includes being used for the storage tank, atomizer passgae, height for providing spraying water
Press pump and nozzle.After pressue device is pressurizeed the water in storage tank 21, sprayed and formed by nozzle along atomizer passgae 20
Droplet field.The quantity and injection direction of nozzle can be arranged on spraying negative pressure secondary device for reducing dust 15 as needed, be sprayed in emulation
The surrounding for penetrating machine 14 installs six to ten spraying negative pressure secondary device for reducing dust 15, and spraying negative pressure secondary device for reducing dust 15 is apart from emulation
The dry spray bottom plate 1.55m of tunnel 4 of simulation (breathing zone height).Wherein, sprayed according to experiment needs, spraying negative pressure secondary device for reducing dust 15
Mouth can change position and quantity by loading and unloading, and the spray field that high-pressure pump 22 realizes different pressures can also be used, make measuring
Data are more comprehensive.It is 0-7m that storage tank 21, which stores water,3, the pressure limit that high-pressure pump 22 provides is 0-16Mpa.
Further, as shown in Figure 2, is evenly arranged more in the dry spray tunnel 4 of above-mentioned analogue simulation and has been used to simulate
The metal friction post 27 gone up a hill in tunnel, gone down the hill, the upper end of metal friction post 27 and the angle of the dry spray inwall of tunnel 4 of analogue simulation are
90 ° to 135 °.Two metal friction pillars have respectively been installed in the underface of the dry front portion of spray tunnel 4 of analogue simulation, middle part and rear portion, altogether
The six roots of sensation is counted, the tunnel that different angle can be achieved goes up a hill to go down the hill with tunnel.
In another preferred embodiment of the present invention, as shown in Figure 3, above-mentioned metal friction post 27 includes the first vertical portion
36, the extension 37 extended laterally is provided with the first vertical portion 36, the upper end of extension 37 is provided with the first elliptical section 38, and
The second vertical portion 39 is provided with one elliptical section 38, the second elliptical section 32, the second elliptical section 32 are provided with the second vertical portion 39
On be provided with support end 33.And the dry spray tunnel 4 of above-mentioned analogue simulation with forced air duct 6, the corresponding position of pull-out type air duct 24
Monorail crane 7 is provided with, analogue simulation has been evenly arranged multiple monorail crane transverse moving mechanisms 8 on dry spray tunnel 4, made forced
Air duct 6, pull-out type air duct 24 can move along corresponding monorail crane.
Further, above-mentioned forced air duct 6 is connected by the first flexible air duct converter 3 with a forced blower fan 1
Logical, forced blower fan 1 is configured with the first electrodeless frequency converter 2；Automation air duct 5 is provided with forced air duct 6.Automation
Air duct 5 is connected with forced air duct 6, as shown in Figure 4, automate in air duct 5 and be evenly arranged multiple barriers
Plate 28, multiple air-out bar gaps are formed between baffler 28, in order to further improve the automation air-out wind speed of air duct 5 and interior
The distinguished and admirable pressure in portion, set baffler 28 to turn an angle, rotational angle is respectively 15 °, 30 °, 45 °, 60 °, 75 °,
90°.The air-out bar gap that baffler 28 is formed is two kinds, and the first is two isometric air-out bar gaps, and second is three grades
Long air-out bar gap.Wherein, the length computation mode of the first air-out bar gap is：1/3* (π R) will take it after semicircle trisection
The isometric line segment cutting air-out bar gap in two, both ends；The length computation mode of second of air-out bar gap is：1/5* (π R) will be partly
Its both ends and middle three isometric line segment cutting air-out bar gaps are taken after five deciles of circle.One end of automation air duct 5 is provided with
Ventilation butterfly valve 31, ventilation butterfly valve 31, which can use to transfer, adjusts butterfly valve of divulging information, and is controlled by corresponding remote control, convenient behaviour
Make.The both ends of automation air duct 5 are provided with air velocity transducer 25 inside air duct, distinguished and admirable pressure sensor inside air duct
26, for collecting related data information.
Further, above-mentioned pull-out type air duct 24 passes through the second flexible pull-out type wet dust removal of air duct converter 34 and one
Blower fan 23 is connected, and pull-out type Wet-type dust-removal fan 23 is configured with the second electrodeless frequency converter 35, can pass through the first electrodeless frequency conversion
Device 2, the second electrodeless frequency converter 35 are distinguished and admirable in the dry spray tunnel 4 of analogue simulation to adjust.The air quantity scope of forced blower fan 1 is 0-
980m3/ min, the air quantity of pull-out type Wet-type dust-removal fan 23 is 100-700m3/ min, water consumption about 2m3/h.Forced blower fan 1,
Pull-out type Wet-type dust-removal fan 23 can be with single use or be used in conjunction with can be so that form in the dry spray tunnel 4 of analogue simulation
Distinguished and admirable, the rotating speed for changing blower fan by corresponding frequency converter can control the exhausting amount in the blower fan unit interval so that analogue simulation
Different wind speed is produced in dry spray tunnel 4, so as to determine each parameter value under different wind friction velocities.
And above-mentioned emulation spraying machine 14 is connected by spray pipe 20 with a high-pressure pump 22, high-pressure pump 22 and storage tank
21 are connected, and water source is provided for emulation spraying machine 14.Above-mentioned analogue simulation has been evenly arranged wind in multiple tunnels in dry spray tunnel 4
Sensor of dust concentration 26 in fast sensor 25, tunnel.Installed in the dry spray tunnel 4 of analogue simulation in 24 tunnels altogether
Air velocity transducer 25, the breathing zone height (being 1.55m apart from ground level) in distance close to dry spray side palisades 1.5m, 3m and 4m
On respectively arrange air velocity transducer 25 in eight tunnels along journey, the fore-and-aft distance in adjacent tunnel between air velocity transducer 25 is 5m,
Wherein, often arrange meet head on first air velocity transducer 25 close to the dry spray front end of tunnel 4 of analogue simulation and arrive analogue simulation Gan Pen lanes
The vertical range met head on of the front end of road 4 is 5m.The quantity of sensor of dust concentration 26 and arrangement and wind in tunnel in tunnel
As fast sensor 25, the underface of air velocity transducer 25 in each tunnel is arranged in, it is high apart from the dry spray tunnel 4 of analogue simulation
Spend for 1.55m.
The present invention also provided a kind of method using above-mentioned nature imitation experiment device, and it comprises the following steps：
A, the first electrodeless 2 and/or second electrodeless frequency converter 35 of frequency converter of regulation realizes different wind speed sizes, produces constant wind
Stream, while adjust automation air duct 5 and form a certain degree of more radial direction Whirl deposite tanks, extruded from forced air duct 6 distinguished and admirable
Into the dry spray tunnel 4 of analogue simulation, it is distinguished and admirable encounter the meeting head on of the dry spray front end of tunnel 4 of analogue simulation after, wind direction alee migrate by side,
If only measuring distribution of air flow rule, spray negative pressure secondary device for reducing dust 15, feeding dust mechanism 19, stirring dust machine are not turned on
Structure 17, jet dust mechanism 12 and injection bounce-back dust mechanism 13, distinguished and admirable data are collected by air velocity transducer in tunnel 25,
Obtain doing spray operation area distribution of air flow rule in the dry spray tunnel 4 of analogue simulation；
B, to study wind-dirt migration rule, then immediately above-mentioned steps A, opens feeding dust mechanism 19, stirring dust machine
With one or several in injection bounce-back dust mechanism 13, simulation produces certain density powder for structure 17, jet dust mechanism 12
Dirt, related data is collected by sensor of dust concentration 26 in air velocity transducer in tunnel 25 and tunnel, analogue simulation is obtained and does
Spray wind-dirt migration rule that the spray single dirt source in operation area or more dirt sources are done in tunnel 4；
C, to the migration of research wind-dirt-mist three-phase medium, coupling, settlement law, then and then above-mentioned steps B, in unlatching
Expect dust mechanism 19, stirring dust mechanism 17, jet dust mechanism 12 and some in injection bounce-back dust mechanism 13 or
Certain is several, after complete related wind speed size to be collected, dust concentration data, opens spraying negative pressure secondary device for reducing dust 15, spraying is negative
Press and negative pressure field and spray field are produced in secondary dust removing device 15, airborne dust is caught, distinguished and admirable, dust and droplet are being simulated
Three-phase medium migration, coupling, sedimentation occur in tunnel, passes through sensor of dust concentration in air velocity transducer in tunnel 25, tunnel
26 collect related data, obtain the wind-dirt-mist migration, coupling, settlement law in single dirt source or more dirt sources, draw different grains
Optimal spray parameters needed for the sedimentation of footpath scope dust；
D, the control dust removing effects under air duct difference air output are automated to research, then and then above-mentioned steps C, it is fixed
Amount changes the rotational angle of ventilation butterfly valve 31, so as to realize the control to automating the air output of air duct 5, realizes different-effect
Closing air curtain, by air velocity transducer in tunnel 25, tunnel sensor of dust concentration 26 collect related data, obtain single
Wind-dirt-the mist in dirt source or more dirt sources closes control dust removing effects and migration, coupling, sedimentation under air curtain effect in wind wall air duct
Rule.
In order to which the present invention is further described, it is exemplified below more detailed embodiment and illustrates.
The height of metal friction pillar 27 is adjusted, draft type is determined and connects forced blower fan 1, extraction rotating vane type removes
Dirt blower fan 23, the forced blower fan 1 of selective actuation, pull-out type Wet-type dust-removal fan 23, wind is adjusted by corresponding stepless frequency conversion device
Machine parameter, and determine the airflow parameter of the dry spray operation area of mine laneway.
Fix feeding dust mechanism 19, stirring dust mechanism 17, jet dust mechanism 12 and injection bounce-back dust machine
The position of structure 13 and relative position, draft type is selected according to requirement of experiment, after system run all right, open feeding dust machine
Structure 19, stirring dust mechanism 17, jet dust mechanism 12 are with spraying one or more of bounce-back dust mechanism 13, to determine
Distinguished and admirable-dust the migration in single dirt source or more dirt sources under different ventilation conditions, under different dust positions, Coupling Rule.
Fix feeding dust mechanism 19, stirring dust mechanism 17, jet dust mechanism 12 and injection bounce-back dust machine
The position of structure 13 and relative position, are aerated according to requirement of experiment, after system run all right, open feeding dust mechanism
19th, dust mechanism 17, jet dust mechanism 12 are stirred with spraying one or more of bounce-back dust mechanism 13, is opened simultaneously
Certain amount spraying negative pressure secondary depositing dust 15 produces spray field, and adjusting high-pressure pump 22 provides the spray field of different pressures, and measure is not
With under the conditions of ventilation side, different dirt sources, different spray nozzles quantity, the atomizing de-dusting efficiency under different atomisation pressures and wind-dirt-mist
Migration, coupling, settlement law.
Fix feeding dust mechanism 19, stirring dust mechanism 17, jet dust mechanism 12 and injection bounce-back dust machine
The position of structure 13 and relative position, it is aerated according to requirement of experiment and adjusts the ventilation dish valve 31 of automation air duct 5, treated
After system run all right, feeding dust mechanism 19, stirring dust mechanism 17, jet dust mechanism 12 and injection bounce-back production are opened
One or more of dirt mechanism 13, while open certain amount spraying negative pressure secondary depositing dust 15 and produce spray field, adjust high pressure
Pump 22 provides the spray field of different pressures, under the conditions of determining different ventilation sides, it is different close air curtain under the conditions of, different dirt sources, no
Air curtain spraying control efficiency of dust collection and wind-dirt-mist migration under same nozzle quantity, different atomisation pressures, coupling, settlement law.
In summary, the present invention simulates distinguished and admirable tunnel Gan Pen operation areas, air curtain, dust in the dry spray tunnel 4 of analogue simulation
With the situation of spraying, analogue simulation is then determined by sensor of dust concentration 26 in air velocity transducer in tunnel 25 and tunnel and done
Spray the related data in tunnel 4, so that it is determined that under different draft types, it is the migration of different air curtain conditions leeward-dirt-mist, coupling, heavy
Rule is dropped, the optimal parameter of the dry spray operation area dust removal by ventilation of mine laneway and atomizing de-dusting has been drawn, scientifically and rationally to arrange
Air duct, draft type, atomizing dust-removing system are automated, it is determined that optimal atomisation pressure, controlled wind speed realizes optimal spraying effect
The dust-laying effect of fruit and detection spraying apparatus, research and development high efficiency nozzle provide reliable technical support.The present invention be according to model with
Realistic model is according to 1:1 ratio structure, the dust-proof operation in scene can be instructed according to live actual parameter is measured.
Certainly, described above is only presently preferred embodiments of the present invention, and the present invention is not limited to enumerate above-described embodiment, should
When explanation, any those skilled in the art are all equivalent substitutes for being made, bright under the teaching of this specification
Aobvious variant, all falls within the essential scope of this specification, ought to be protected by the present invention.
Claims (6)
1. a kind of nature imitation experiment device for the dry spray operation area dust migration of mine laneway and preventing and treating, it is included by safety glass
The dry spray tunnel of manufactured analogue simulation, it is characterised in that analogue simulation is disposed with for importing the forced of wind in dry spray tunnel
Air duct and the pull-out type air duct for extracting wind out, analogue simulation are provided with simulation mining rail in dry spray tunnel, and simulation is mining
Emulation feeding machine, emulation mixer and emulation spraying machine are provided with track, emulates and is provided with feeding dust machine on feeder
Structure, emulate and stirring dust mechanism is provided with mixer, emulate and be provided with jet on spraying machine, injection is provided with jet
Mouth dust mechanism, jet are emulated on spraying machine towards the injection bounce-back dust mechanism being arranged in the dry spray tunnel of analogue simulation
It is provided with spraying negative pressure secondary device for reducing dust；
The dry spray tunnel of above-mentioned analogue simulation is being provided with monorail crane with forced air duct, pull-out type air duct corresponding position, emulates mould
Intend being evenly arranged multiple monorail crane transverse moving mechanisms on dry spray tunnel, enable forced air duct, pull-out type air duct along correspondingly
Monorail crane moves；Above-mentioned forced air duct is connected by the first flexible air duct converter with a forced blower fan, forced wind
Machine is configured with the first electrodeless frequency converter；Automation air duct is provided with forced air duct；
Above-mentioned automation air duct is connected with forced air duct, automates in air duct and has been evenly arranged multiple barriers
Plate, multiple air-out bar gaps is formed between baffler, the one end for automating air duct is provided with ventilation butterfly valve；Automate attached wall wind
The both ends of cylinder are provided with air velocity transducer inside air duct, distinguished and admirable pressure sensor inside air duct；
Above-mentioned pull-out type air duct is connected by the second flexible air duct converter with a pull-out type Wet-type dust-removal fan, and pull-out type is wet
Formula dedusting fan is configured with the second electrodeless frequency converter.
2. nature imitation experiment device according to claim 1, it is characterised in that uniform cloth in the dry spray tunnel of above-mentioned analogue simulation
More are equipped with to be used to simulate in tunnel the metal friction post gone up a hill, gone down the hill, metal friction post upper end and the dry spray tunnel of analogue simulation
The angle of inwall is 90 ° to 135 °.
3. nature imitation experiment device according to claim 2, it is characterised in that it is vertical that above-mentioned metal friction post includes first
Portion, the extension extended laterally is provided with the first vertical portion, the upper end of extension is provided with the first elliptical section, the first elliptical section
On be provided with the second vertical portion, the second elliptical section is provided with the second vertical portion, support end is provided with the second elliptical section.
4. nature imitation experiment device according to claim 1, it is characterised in that above-mentioned emulation spraying machine by spray pipe with
One high-pressure pump is connected, and high-pressure pump is connected with storage tank.
5. nature imitation experiment device according to claim 1, it is characterised in that uniform cloth in the dry spray tunnel of above-mentioned analogue simulation
It is equipped with air velocity transducer in multiple tunnels, sensor of dust concentration in tunnel.
6. a kind of method using nature imitation experiment device as claimed in claim 1, it comprises the following steps：
A, the first electrodeless frequency converter and/or the second electrodeless frequency converter are adjusted and realizes different wind speed sizes, generation stablize it is distinguished and admirable, simultaneously
Regulation automation air duct forms a certain degree of more radial direction Whirl deposite tanks, is extruded from forced air duct distinguished and admirable into emulation mould
Intend dry spray tunnel, it is distinguished and admirable encounter the meeting head on of the dry spray tunnel front end of analogue simulation after, wind direction alee migrate by side, if only measuring distinguished and admirable
The regularity of distribution, then it is not turned on spray negative pressure secondary device for reducing dust, feeding dust mechanism, stirring dust mechanism, jet dust machine
Structure and injection bounce-back dust mechanism, collect distinguished and admirable data by air velocity transducer in tunnel, obtain in the dry spray tunnel of analogue simulation
Dry spray operation area distribution of air flow rule；
B, to study wind-dirt migration rule, then immediately above-mentioned steps A, opens feeding dust mechanism, stirring dust mechanism, spray
With one or several in injection bounce-back dust mechanism, simulation produces certain density dust, passes through tunnel for loophole dust mechanism
Dust concentration sensor collection related data in interior air velocity transducer and tunnel, obtain doing spray operation in the dry spray tunnel of analogue simulation
The single dirt source in area or the wind-dirt migration rule in more dirt sources；
C, to research wind-dirt-mist three-phase medium migration, coupling, settlement law, then and then above-mentioned steps B, unlatching feeding produce
Dirt mechanism, stirring dust mechanism, jet dust mechanism and injection rebound in dust mechanism some or certain it is several, it is to be collected
After complete related wind speed size, dust concentration data, spraying negative pressure secondary device for reducing dust is opened, in negative pressure secondary device for reducing dust of spraying
Negative pressure field and spray field are produced, airborne dust is caught, in simulation tunnel three-phase medium occurs for distinguished and admirable, dust and droplet
Migration, coupling, sedimentation, by dust concentration sensor collection related data in air velocity transducer in tunnel, tunnel, obtain single
Wind-the dirt in dirt source or more dirt sources-mist migration, coupling, settlement law, draw needed for the sedimentation of different-grain diameter scope dust most
Good spray parameters；
D, the control dust removing effects under air duct difference air output are automated to research, then and then above-mentioned steps C, quantitatively changed
Become the rotational angle of ventilation butterfly valve, so as to realize the control to automating air duct air output, realize the closing of different-effect
Air curtain, by dust concentration sensor collection related data in air velocity transducer in tunnel, tunnel, obtain single dirt source or more
Wind-dirt-the mist in dirt source closes control dust removing effects and migration, coupling, settlement law under air curtain effect in wind wall air duct.
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| CN105784400A (en) * | 2016-03-22 | 2016-07-20 | 湖南科技大学 | Underground coal mine gas-water spraying dust reduction comprehensive experiment system |
| CN106769742B (en) * | 2017-03-01 | 2023-02-21 | 西安科技大学 | Dust suppressant and dust suppressant dedusting effect testing device and testing method |
| CN107515984A (en) * | 2017-08-23 | 2017-12-26 | 黑龙江工业学院 | A kind of air curtain control dust and gas fixed double phase flow method for numerical simulation |
| CN107345486A (en) * | 2017-08-29 | 2017-11-14 | 河南理工大学 | A kind of angle, ventilation, the adjustable digging laneway dedusting analogue experiment installation in dirt source |
| CN109630187A (en) * | 2019-01-07 | 2019-04-16 | 山东科技大学 | A kind of working face dust prevention and control method based on working face scene coal dust Diffusion Law |
| CN111485930B (en) * | 2020-04-27 | 2021-06-18 | 山东科技大学 | Modular air separation device for driving face and dust suppression air curtain forming method |
| CN113781889B (en) * | 2021-10-11 | 2023-01-24 | 山东科技大学 | Multi-gas generation, injection and closing integrated simulation system suitable for comprehensive digging surface |
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