CN106179812B - tunnel dust simulation system and method - Google Patents
tunnel dust simulation system and method Download PDFInfo
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- CN106179812B CN106179812B CN201610621634.8A CN201610621634A CN106179812B CN 106179812 B CN106179812 B CN 106179812B CN 201610621634 A CN201610621634 A CN 201610621634A CN 106179812 B CN106179812 B CN 106179812B
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- dust
- tunnel
- simulation system
- injector
- cover
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
- B05B7/1431—Arrangements for supplying particulate material comprising means for supplying an additional liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
- B05B15/68—Arrangements for adjusting the position of spray heads
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- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses tunnel dust simulation system and method, which includes loading platform, and loading platform surface is equipped with rotating mechanism, and the height of dust injector, dust injector is adjustable；Dust injector includes dust cover, and the entrance of dust cover is connect by duff pipe with powder supplying mechanism, and powder supplying mechanism is connect with compressed-air power source, is equipped with suction section in dust cover exit, dust cover is fixed on rotating mechanism by fixed frame.The beneficial effects of the invention are as follows：The present invention can prepare dust gradation and dust size according to true environment in tunnel and dust mechanism of production, manual simulation tunnel dust；The present invention can adjust dust injection direction by the setting of rotating mechanism and jack with horizontal 360-degree, vertical elevation angle maximum can arrive a certain angle, adaptable；By the setting of mobile mechanism, it can be achieved that moving freely for simulation system, flexibility with higher in the present invention；The configuration of the present invention is simple, it is easy to operate, improve working efficiency.
Description
Technical field
The present invention relates to tunnels mimic test more particularly to tunnel dust simulation systems and method.
Background technique
The Tunnel Engineering drill bursting construction technology in China experienced the technological progress of great-leap-forward, achieve brilliant technology effect
Fruit, since drill bursting construction has economic, efficient and adaptable to geology clear superiority, so being so far still China's tunnel
Most important and most common technological means in road tunneling construction.But the face blasting procedure of drilling and blasting method operation, it is easy to
A large amount of blasting dusts are generated in operation side；And in tunnel model test, it is related to the researchs such as camera shooting, monitoring system research and development,
More meet engineering reality for experimental results, needs model test internal simulation tunnel dust, there is presently no a set of feasible
Tunnel dust simulation system and method.
Summary of the invention
The purpose of the invention is to provide, a kind of structure is simple, dust simulation system in the tunnel easy to operate system
On the basis of analyzing tunnel Source of Dust and mechanism of production, the dust atmosphere in different process periods can not only be simulated, it is also right
Tunnel dust concentration does quantitative analysis, improves the authenticity of tunnel environment simulation and the accuracy of correlative study result.
The application method of tunnel dust simulation system is additionally provided, realizes the simulation in drilling and blasting method operation borehole blasting dust,
Dust injection direction is adjustable, it can be achieved that when different working procedures, the generation of various concentration dust.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
Tunnel dust simulation system, including：
Loading platform, loading platform surface are equipped with rotating mechanism,
The height of dust injector, dust injector is adjustable；
Dust injector includes dust cover, and the entrance of dust cover is connect by duff pipe with powder supplying mechanism, powder supplying mechanism and
The connection of compressed-air power source is equipped with suction section in dust cover exit, and dust cover is fixed on rotating mechanism by fixed frame,
The angle of the adjustable fixed frame rotation of the setting of rotating mechanism, thus the direction that control is blown；
In order to more preferably simulate actual conditions in Tunnel Engineering, using tunnel dust simulation system of the invention, so that dust
For cover jet face towards the work surface in tunnel, work surface is the working face that tunneling is constantly pushed ahead, and includes abutment wall face, arch
Top surface and face, adjustable dust injection direction, meet site operation environment, to control dust flow path, more
Meet tunnel spray anchor supporting process, makes tunnel dust simulation more true effect.
Further, in order to preferably spray, the dust cover is tapered, and dust cover exit size is greater than inlet
Size.
Further, the suction section is the impeller inducer set on the big end of dust cover size, and lays steel wire cover
At lid dust outlet, the blade of impeller inducer can Double-directional rotary, and the revolving speed for being adjustable impeller inducer realizes the powder of various concentration
Dirt injection, can fast implement dust concentration and be rapidly reached some value in the case that revolving speed is fast, can be attainable according to practical explosion
Dust effect, to select the velocity magnitude of impeller inducer.
Impeller inducer only needs simple dynamical system, such as electric motor starting, and basic principle is identical as fan leaf rotation, controller with
Rotating electric machine connection, controller controls the rotation of rotating electric machine, and then drives the rotation of impeller inducer.
Double-directional rotary is that actually to control the generation of dust according to tunnel actual conditions in tunnel may be because of tunnels such as explosions
Internal environment generates in road, it is furthermore possible that being to enter inside on the outside of tunnel, realizes simulation, water conservancy diversion in order to more true
Impeller preferably can Double-directional rotary, rotating electric machine reversion can be realized impeller inducer and rotates round about.
Further, dust injector one end is fixed on the rotating mechanism by the fixed frame, another
Setting jack realizes that dust injector jetting height is adjustable between end and rotating mechanism.
Further, the rotating mechanism is that shell coats and the bearing on the loading platform is arranged in, rotating mechanism
Can horizontal 360-degree rotation, the angle that rotates on impeller inducer horizontal plane is adjusted, to control the side that dust simulation system is blown
To and size.
Further, the powder supplying mechanism is provided with artificial dust, and artificial dust includes mineral dust, free titanium dioxide
Silica soot and cement, mineral dust are used to simulate the dust of tunnel tunnel face explosion generation, free silicon dioxide dust, cement
For simulating the dust of gunite concrete process generation.
Further, mobile mechanism is set in the bottom of the loading platform, there are four wheels for loading platform band, guarantee fortune
Balance during defeated realizes moving freely for dust injection, improves its flexibility.
Further, the rotating mechanism is rotating electric machine, and tunnel dust simulation system further includes controller, controller with
Rotating electric machine, suction section individually connect, and controller controls the rotation of rotating electric machine, the movement of suction section.
Further, nozzle is equipped in the dust cover, nozzle is connect with the duff pipe.
The application method of the tunnel dust simulation system, specific step is as follows：
1) position of dust injector is adjusted：The horizontal direction of dust injector is adjusted by rotating mechanism, and adjusts powder
The height and position of dirt injector；
2) powder supplying mechanism feeds artificial dust into dust cover, and dust is in a kind of state of fluidisation, passes through siphonage
By swiftly flowing air-flow with formation powder gas mixing；
3) impeller inducer rotates, and powder gas mixture is finally dispersed in air.
The working principle of the invention is：Tunnel Source of Dust also includes eolian dust, and before exploitation because of geologic process and
The reasons such as geologic change and the dust generated, are present in stratification, joint and the crack of rock mass；In addition to this, technique dust is also
One of the main source of tunnel dust, i.e., rock mass drilling, abandon quarrel shipment, get rid of the danger during the work such as rubbed, collide, squeeze
With and generate dust；In construction of shotcrete, high pressure draught blowout cement and fine sand can also generate a large amount of dust；This hair
The mechanism generated in bright based on true environment and the above dust is selected suitable artificial dust, preferably realized to Tunnel Engineering
In dust simulation.
The beneficial effects of the invention are as follows：
1. the present invention is according to true environment in tunnel and dust mechanism of production, manual simulation tunnel dust can prepare powder
Dirt gradation and dust size.
2. the present invention can be adjusted dust injection direction with horizontal 360-degree, be erected by the setting of rotating mechanism and jack
Straight elevation angle maximum can arrive a certain angle, adaptable.
3. passing through the setting of mobile mechanism in the present invention, it can be achieved that moving freely for simulation system, with higher flexible
Property.
4. the configuration of the present invention is simple, easy to operate, working efficiency is improved.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is key position detail drawing.
Wherein 1. artificial dust；2. powder supplying mechanism；3. duff pipe；4. dust cover；5. protective cover；6. impeller inducer；7. rotation
Rotation mechanism；8. hydraulic jack；9. fixed frame；10 loading platforms；11. work surface.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description.
Tunnel dust simulation system and method by artificial dust 1, powder supplying mechanism 2, duff pipe 3, dust cover 4, protective cover 5,
Impeller inducer 6, rotating mechanism 7, hydraulic jack 8, fixed frame 9, loading platform 10 form.According to true environment in tunnel and powder
Dirt mechanism of production, manual simulation tunnel dust can not only prepare dust gradation, adjust dust size, can also be by included
The rotation of impeller inducer 6 drives air flowing, adjusts dust concentration distribution；Rotating mechanism 7 and hydraulic a thousand pieces of gold top 8 are adjustable simultaneously
4 direction of dust cover is more in line with tunnel spray anchor supporting process to control dust flow path, makes the simulation of tunnel dust more
True effect.
The artificial dust 1 includes mineral dust, free silicon dioxide dust and cement etc., and mineral dust is used to mould
The dust that quasi- tunnel tunnel face explosion generates, free silicon dioxide dust, cement are used to simulate the generation of gunite concrete process
Dust.In simulation process, it can be needed to carry out artificial dust according to test to match in advance；
The powder supplying mechanism 2 has the function of the artificial dust 1 of storage, is made of antistatic material, it can be achieved that repeatedly loading；
The duff pipe 3 can transport the artificial dust 1 in powder supplying mechanism 2 to dust cover 4；
The dust cover 4 is by the way that artificial dust 1 is generated through conduit supply nozzle under high pressure, in powder supplying mechanism
In, artificial powder 1 is in a kind of state of fluidisation, this is to realize that powder passes through rainbow later by the effect of compressed air
Suction effect is by swiftly flowing air-flow with formation powder gas mixing by duff pipe 3, eventually arrives on nozzle, and adjust respectively
Whole powder and AIR Proportional change powder outlet quantity, realize that concentration is adjusted, and the principle of both adjustment ratio is：Powder supplying mechanism and injection
Formula air compressor is connected, and using high velocity jet gas, dust is driven to enter duff pipe, and it is dense to control dust by gas velocity
Degree, gas velocity is bigger, and dust concentration is higher.
Impeller inducer 6 is arranged in the big end of the dust cover size, and lays steel wire cover as protective cover 5 and cover the end
Portion, the protective cover 5 are meshy steel wire cover, prevent from injuring operator under 6 high-speed rotation of impeller inducer, have protective effect；
Blade of the impeller inducer 6 by runner and with certain deflection radian forms, impeller inducer 6 and dust injector
7 is coaxial, blade can Double-directional rotary, control pressure height can blow the dust that dust cover 4 is ejected, and be adjustable its revolving speed,
The initial velocity sprayed according to engineering realistic simulation dust；
The rotating mechanism 7 can horizontal 360-degree rotation, the angle that rotates on 6 horizontal plane of impeller inducer is adjusted, to control
Make the direction blown and size；
Hydraulic jack is obliquely installed, and the shell of one end and rotating mechanism is fixed, and the bottom of the other end and dust cover 4 is solid
Fixed, hydraulic a thousand pieces of gold top 8 can freely contract, adjust the angle of steeving of dust cover 4, control the dust injection side of vertical plane
To；
The fixed frame 9 and the fixed device of dust cover 4, as shown in Figure 2；
The loading platform 10 guarantees the balance in transportational process with there are four wheel, realizes freely moving for dust injection
It is dynamic, improve its flexibility；
When using the device, the big one end of 4 size of dust cover towards work surface 11 be arranged, work surface 11 be tunneling not
The disconnected working face pushed ahead, includes abutment wall face, vault face and face；
The method of above system, includes the following steps：
(1) artificial dust 1 loads.According to constructing tunnel process and test requirements document, artificial dust ratio is prepared, confession is filled into
Powder mechanism 2；
(2) 4 horizontal direction of dust cover is adjusted.Rotating mechanism 7 is rotated, dust cover 4 is driven to horizontally rotate, until dust sprays
Direction reaches requirement of experiment；
(3) 4 vertical direction of dust cover is adjusted.Start hydraulic 8 control switch of a thousand pieces of gold top, adjust its stroke, after dust cover 4
End is lifted, and is steeved angle until reaching dust cover 4；
(4) dust cover 4 is opened.What artificial dust was generated through conduit supply nozzle under high pressure, in powder supplying mechanism 3, powder
End is in a kind of state of fluidisation, and powder passes through siphonage by swiftly flowing air-flow with formation powder gas mixes, most later
Zhongdao reaches on nozzle；
(5) impeller inducer 6 is opened.Impeller inducer 6 rotates, and blows the dust that dust cover 4 ejects and is distributed in air, with
It is uniform to reach dust concentration.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. tunnel dust simulation system, which is characterized in that including：
Loading platform, loading platform surface are equipped with rotating mechanism,
The height of dust injector, dust injector is adjustable；
Dust injector includes dust cover, and the entrance of dust cover is connect by duff pipe with powder supplying mechanism, powder supplying mechanism and compression
Air power source connection is equipped with suction section in dust cover exit, and dust cover is fixed on rotating mechanism by fixed frame；It is described
Dust injector one end is fixed on the rotating mechanism by the fixed frame, and thousand are arranged between the other end and rotating mechanism
Realize that dust injector jetting height is adjustable in jin top；
The powder supplying mechanism is provided with artificial dust, and artificial dust includes mineral dust, free silicon dioxide dust and cement,
Mineral dust is used to simulate the dust of tunnel tunnel face explosion generation, and free silicon dioxide dust, cement are used to simulate injection
The dust that concrete process generates.
2. dust simulation system in tunnel as described in claim 1, which is characterized in that the dust cover is tapered, and dust cover goes out
Size is greater than the size of inlet at mouthful.
3. dust simulation system in tunnel as claimed in claim 2, which is characterized in that the suction section is set on dust cover size
The impeller inducer of big end, and lay at steel wire cover covering dust outlet.
4. dust simulation system in tunnel as described in claim 1, which is characterized in that the rotating mechanism is that shell is coated and set
Set the bearing on the loading platform.
5. dust simulation system in tunnel as described in claim 1, which is characterized in that be arranged in the bottom of the loading platform and move
Motivation structure.
6. dust simulation system in tunnel as described in claim 1, which is characterized in that the rotating mechanism is rotating electric machine, tunnel
Road dust simulation system further includes controller, and controller is individually connect with rotating electric machine, suction section.
7. dust simulation system in tunnel as claimed in claim 3, which is characterized in that nozzle is equipped in the dust cover,
Nozzle is connect with the duff pipe.
8. such as the application method of dust simulation system in tunnel of any of claims 1-7, which is characterized in that specific step
It is rapid as follows：
1) position of dust injector is adjusted：The horizontal direction of dust injector is adjusted by rotating mechanism, and adjusts dust spray
The height and position of emitter；
2) suction section is opened, powder supplying mechanism feeds artificial dust into dust cover, and powder is in a kind of state of fluidisation, passes through rainbow
Suction effect is by swiftly flowing air-flow with formation powder gas mixing；
3) impeller inducer rotates, and powder gas mixture is finally dispersed in air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610621634.8A CN106179812B (en) | 2016-07-29 | 2016-07-29 | tunnel dust simulation system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610621634.8A CN106179812B (en) | 2016-07-29 | 2016-07-29 | tunnel dust simulation system and method |
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| Publication Number | Publication Date |
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| CN106179812A CN106179812A (en) | 2016-12-07 |
| CN106179812B true CN106179812B (en) | 2018-11-30 |
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| CN201610621634.8A Active CN106179812B (en) | 2016-07-29 | 2016-07-29 | tunnel dust simulation system and method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061326B (en) * | 2016-12-12 | 2020-07-10 | 大连民族大学 | Dust electrostatic detection jar |
| CN108031581A (en) * | 2017-12-04 | 2018-05-15 | 长沙修恒信息科技有限公司 | A kind of automatic liquid-spraying system |
| CN113358350B (en) * | 2021-06-03 | 2023-06-30 | 河北工业大学 | RV reduction gear dust-resistant reliability testing device |
| CN114136578B (en) * | 2021-11-04 | 2023-05-19 | 安徽理工大学环境友好材料与职业健康研究院(芜湖) | Simulation device for dust fall test |
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| CN101520365A (en) * | 2009-03-06 | 2009-09-02 | 山东科技大学 | Simulation experimental system for controlling mine tunnel dust environment |
| CN103234573A (en) * | 2013-04-22 | 2013-08-07 | 张家港朗亿机电设备有限公司 | Dust environment simulation equipment |
| CN104165651A (en) * | 2014-08-13 | 2014-11-26 | 陆雁 | Air-jet sand and dust environment simulating device |
| CN104296958A (en) * | 2014-09-12 | 2015-01-21 | 山东科技大学 | Coal mine underground PM2.5 concentration simulation detecting system |
| CN105499012A (en) * | 2016-03-07 | 2016-04-20 | 山东华力机电有限公司 | Intelligent multifunctional spraying machine capable of removing haze |
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2016
- 2016-07-29 CN CN201610621634.8A patent/CN106179812B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520365A (en) * | 2009-03-06 | 2009-09-02 | 山东科技大学 | Simulation experimental system for controlling mine tunnel dust environment |
| CN103234573A (en) * | 2013-04-22 | 2013-08-07 | 张家港朗亿机电设备有限公司 | Dust environment simulation equipment |
| CN104165651A (en) * | 2014-08-13 | 2014-11-26 | 陆雁 | Air-jet sand and dust environment simulating device |
| CN104296958A (en) * | 2014-09-12 | 2015-01-21 | 山东科技大学 | Coal mine underground PM2.5 concentration simulation detecting system |
| CN105499012A (en) * | 2016-03-07 | 2016-04-20 | 山东华力机电有限公司 | Intelligent multifunctional spraying machine capable of removing haze |
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| CN106179812A (en) | 2016-12-07 |
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